CN117530564A

CN117530564A - Dining chair for infants

Info

Publication number: CN117530564A
Application number: CN202311672186.0A
Authority: CN
Inventors: 刘上钺; 刘韦兵
Original assignee: Zhongshan Shuimuzhiyuan Design Center
Current assignee: Zhongshan Shuimuzhiyuan Design Center
Priority date: 2023-03-22
Filing date: 2023-12-07
Publication date: 2024-02-09

Abstract

The invention discloses a baby dining chair, which comprises a dinner plate, a seat, a back, a support frame, wherein the seat and the back are pivoted, the seat comprises a base, a support seat and a swinging part, the swinging part is connected with the base and arranged on the support seat, the swinging part can enable the seat to swing in parallel or nearly in parallel relative to the support seat, the support frame comprises a first support frame and a second support frame, the support frame further comprises a sliding mechanism, the sliding mechanism can enable the second support frame to slide up and down relative to the first support frame, the first support frame is supported on a support surface, the first support frame supports the second support frame from the lower end, and the second support frame is fixedly arranged with the support seat. In this infant dining chair, the stability of seat is high, the swing is smooth and easy, does not need the contained angle of people's switching seat and back to satisfy EU test requirement and safety standard and stable in structure, does not have seat and support frame to cause the vision of tong, can satisfy more consumer's demands.

Description

Dining chair for infants

Technical Field

The invention relates to a dining chair for infants.

Background

The multifunctional dining chair has the advantages that cost is saved by combining the two dining chairs and consumers, occupied space is reduced, cost performance is high, but the multifunctional dining chair is not in a swing mode when in a swing position, so that a child can feel dizziness and spit milk, an included angle between the seat and the back is smaller than an included angle between the seat and the back when the dining chair is used when the rocking chair is used, safety can be guaranteed only by the design, a child can feel uncomfortable when the child swings on the seat due to the small included angle, development of the child is not facilitated due to the small included angle, and meanwhile, the seat and the support frame can cause visual response of a clamping hand.

Disclosure of Invention

The present invention has been made in view of the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a chair which can be used as a rocking chair and a dining chair, wherein the angle between the seat and the back of the chair can pass the eu test requirement and the safety standard, the eu test requirement and the safety standard are not required to be manually switched, the safety standard is met, the structure is stable, and the vision of the clamp is not caused by the seat and the support frame, so as to meet the requirements of more consumers.

The invention is realized by the following technical scheme:

the utility model provides an infant dining chair, including the dinner plate, the seat, the back, the support frame, seat and back pin joint, the seat includes the base, still include the supporting seat, still include swing portion, swing portion and base connection, swing portion sets up on the supporting seat, swing portion can make the seat support seat parallel pendulum or be close parallel pendulum relatively, the support frame includes first support frame and second support frame, still include slide mechanism, slide mechanism can make the second support frame slide about first support frame, first support frame supports on the holding surface, first support frame is supporting the second support frame from the lower extreme, the second support frame is fixed with the supporting seat and is set up.

Further, the highest point of the fixing point of the second support frame and the support seat is lower than the lowest point of the base.

Further, a third connecting piece is arranged between the swinging part and the base, and the base is connected with the swinging part through the third connecting piece.

Further, the third connecting piece is U-shaped, and the base is transversely provided with a matching part matched with the third connecting piece.

Further, the upper end of the first supporting piece is provided with an extension part, and the folding mechanism is arranged between the extension part and the second supporting piece.

Further, the folding mechanism comprises a first switch, a first locking part connected with the extension part and a second locking part connected with the second supporting part, wherein the first locking part is pivoted with the second locking part, a movable fourth bolt is arranged on the second locking part, a fourth reset part for driving the fourth bolt to reset and a recess part for limiting, the first switch is movably arranged on the first locking part, a fourth jack matched with the fourth bolt in a locking manner and a fourth protruding part movably matched with the recess part are arranged on the first locking part, a second protruding part matched with the fourth bolt is arranged on the first switch, and the first switch drives the fourth bolt to withdraw from the fourth jack to unlock the first locking part when the first switch is pressed.

Further, the second lock part comprises a middle part and a fifth connecting part, the middle part is fixedly connected to one side, facing the first lock part, of the fifth connecting part, the concave part is arranged on the middle part, a first sliding hole corresponding to the fourth bolt is formed in the middle part, the fourth bolt can slide in the first sliding hole and cannot be separated from the middle part due to the limitation of the first sliding hole, and the fourth reset part is a fourth reset spring arranged between the fourth bolt and the fifth connecting part.

Further, the first support piece comprises a first plastic piece and a first metal piece arranged in the first plastic piece, the extension portion and the first plastic piece are integrally formed, and the second support frame comprises a second plastic piece and a second metal piece arranged in the second plastic piece.

Further, a folding mechanism is arranged on the first supporting frame, the first supporting frame comprises a first supporting piece and a second supporting piece, and the folding mechanism can enable the first supporting piece to be folded relative to the second supporting piece.

Further, the first supporting frame is arranged at an inclination angle and forms an acute angle with the second supporting frame.

Further, the sliding mechanism comprises a sliding switch, a first pull rope and a locking and unlocking part, the sliding switch is arranged on the supporting seat or the second supporting frame, one end of the first pull rope is connected with the sliding switch, the other end of the first pull rope is connected with the locking and unlocking part, and the locking and unlocking part is arranged between the first supporting frame and the second supporting frame.

Further, the locking and unlocking part comprises a third jack arranged on the first support frame, a third bolt arranged on the second support frame, a first driving piece connected with the third bolt, a third reset spring, and a third bolt driving piece connected with the other end of the first stay cord.

Further, the novel dining chair further comprises a locking and unlocking mechanism, a connecting part, a rocking chair position and a dining chair position, wherein the connecting part enables the seat to be separated from the supporting seat, and the locking and unlocking mechanism prevents the dining plate from being connected with the seat so that the dining plate is separated from the seat when the dining plate is positioned at the rocking chair position, and the rocking part can drive the seat to swing; the connecting part enables the seat part to be connected with the supporting seat, and simultaneously enables the locking and unlocking mechanism to allow the dinner plate to be connected with the seat part to form locking arrangement, and when the dinner plate is connected with the seat part to form locking arrangement and the locking and unlocking mechanism always enables the seat part to be connected with the supporting seat, the dinner plate is positioned at the dining chair position; the locking and unlocking mechanism allows the seat to be separated from the supporting seat when the dinner plate is separated from the seat, and is arranged in the armrest seat.

Further, the lock unlocking mechanism includes a first locking portion for preventing the dinner plate from being connected with the seat portion when the connection portion separates the seat portion from the support seat so as to separate the dinner plate from the seat portion, and a second locking portion for allowing the dinner plate to be connected with the seat portion to form a locking setting when the connection portion connects the seat portion to the support seat portion, the second locking portion further being for allowing the seat portion to be always connected with the support seat portion when the dinner plate is connected with the seat portion to form a locking setting, the second locking portion further being for allowing the seat portion to be separated from the support seat portion when the dinner plate is separated from the seat portion, the seat portion further including a handrail seat, and the lock unlocking mechanism being provided in the handrail seat.

Further, the first locking part comprises a first locking component and a first connecting piece, the first locking component is connected with one end of the first connecting piece, the first locking part further comprises a pulling piece, the pulling piece is connected with the other end of the first connecting piece, the second locking part comprises a second locking component and a second connecting piece, the second locking component is connected with one end of the second connecting piece, the second locking part further comprises a third locking component, and the third locking component is connected with the other end of the second connecting piece.

Further, the dinner plate is provided with a plug rod, the seat is provided with a slot hole for the plug rod to insert, and the first locking component comprises a first plug pin for preventing the plug rod, and the first plug pin can extend into or withdraw from the slot hole.

Further, be provided with the second lockpin subassembly that is used for with the seat locking on the inserted bar, still be provided with second stay cord and second switch on the dinner plate, the one end and the second switch of second stay cord are connected, and the other end and the second lockpin subassembly of second stay cord are connected.

Further, the second lock pin assembly comprises a fifth bolt, a second driving piece and a fifth reset part, the fifth bolt is arranged on the inserting rod in a sliding mode and can penetrate out of the inserting rod, the second driving piece is arranged in the inserting rod in a sliding mode, the other end of the second pull rope is connected with the second driving piece, the fifth reset part is arranged between the second driving piece and the inserting rod, a first chute is arranged on the second driving piece, and a third protruding portion matched with the first chute is arranged on the fifth bolt.

Further, the second locking component comprises a second bolt, the second bolt can extend into or withdraw from the slot, and when the inserting rod is inserted into the slot, the inserting rod can drive the second bolt to withdraw from the slot, and the second connecting piece can drive the third locking component to lock with the connecting part.

Further, one end of the connecting portion is pivoted with the supporting seat or the supporting frame, the other end of the connecting portion is connected with or separated from the seat, a first groove is formed in the other end of the connecting portion, a first protruding portion matched with the first groove is arranged on the seat, a lock hole used for being locked with the third locking assembly is further formed in the other end of the connecting portion, a buckle used for being clamped with the first protruding portion is further arranged at the other end of the connecting portion, and a driving portion used for driving the pulling piece is further arranged at the other end of the connecting portion.

Further, the first locking assembly is pivotally arranged with the seat, the second locking assembly is pivotally arranged with the seat, and the pulling member is pivotally arranged with the seat.

Further, the third locking assembly comprises a rotating rod and a first locking pin assembly, the rotating rod is pivoted with the seat, one end of the rotating rod is connected with the second connecting piece, the other end of the rotating rod is pivoted with the first locking pin assembly, and the first locking pin assembly is used for locking or unlocking with the connecting portion.

Further, a first return spring is included, the first return spring being disposed between the first locking assembly and the seat, and a second return spring is included, the second return spring being disposed between the first locking pin assembly and the seat.

Further, the third locking assembly comprises an eighth reset part and a first locking piece for locking or unlocking the connecting part, the first locking piece is movably arranged relative to the seat and is connected with the other end of the second connecting piece, and the eighth reset part can drive the first locking piece to move towards the connecting part for resetting so as to lock the connecting part.

Further, the first locking element is slidably arranged on the seat part along a direction towards or away from the connecting part, and the eighth reset part comprises an eighth reset spring which is arranged between the first locking element and the seat part and drives the first locking element to slide towards the connecting part by elasticity.

Further, the dinner plate is provided with an inserting rod, the seat is provided with a slotted hole for inserting the inserting rod, the second locking assembly comprises a first switch part and a first movable part, the first movable part is provided with a limiting part matched with the inserting rod, the first movable part is movably arranged relative to the seat and is connected with one end of the second connecting part, and the first switch part is connected to the seat and is in transmission fit with the first movable part.

Further, the limiting part comprises a sixth bolt which is used for extending into or withdrawing from the slotted hole, the first movable part is slidably arranged on the seat part along the first direction, the first switch part is slidably arranged on the seat part along the second direction, the first direction and the second direction form an included angle, and the first movable part is provided with a second chute which is slidably matched with the first switch part.

Further, the limiting part comprises a hook used for hooking the inserted link, the first movable part is pivoted to the seat, the first switch part is slidably arranged on the seat, a third chute which is slidably matched with the first switch part is arranged on the first movable part, one end of the second connecting part is connected to one end of the first movable part, and the hook is arranged at the other end of the first movable part.

Further, the locking and unlocking mechanism comprises a third locking part and a movable part, the movable part is respectively matched with the third locking part and the connecting part, and the third locking part is respectively matched with the dinner plate and the connecting part; the movable part is used for releasing the limit of the third locking part when the connecting part connects the seat part and the supporting seat, so that the third locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; the third locking part is used for locking the connecting part when the dinner plate is connected with the seat part to form a locking arrangement, so that the seat part is always connected with the supporting seat; the third locking part is also used for unlocking the connecting part when the dinner plate is separated from the seat part, so that the seat part is allowed to be separated from the supporting seat; the movable part is also used for limiting the third locking part when the connecting part separates the seat part from the supporting seat, so that the third locking part prevents the dinner plate from being connected with the seat part, and the dinner plate is separated from the seat part.

Further, the third locking part comprises a third movable part and a fourth movable part, the third movable part and the fourth movable part are mutually matched in a transmission way and are respectively movably arranged relative to the seat part, the third movable part is used for preventing or allowing the dinner plate to be connected with the seat part, and the fourth movable part is used for locking or unlocking the connecting part; the movable part comprises a fifth movable part which is movably arranged relative to the seat part, and the connecting part can drive the fifth movable part to move so as to release the limit on the fourth movable part, thereby allowing the third movable part and the fourth movable part to move.

Further, the third locking part further comprises a ninth resetting part, the movable part further comprises a tenth resetting part, the third movable part and the fourth movable part are respectively arranged on the seat in a sliding mode along different directions, the fifth movable part is pivoted to the seat, the ninth resetting part is used for driving the third movable part and the fourth movable part to slide and reset when the dinner plate is separated from the seat, and the tenth resetting part is used for enabling the fifth movable part to rotate and reset when the connecting part enables the seat to be separated from the supporting seat.

Further, the dinner plate is provided with an inserting rod, the seat is provided with a slot hole for inserting the inserting rod, one end of the third movable piece is provided with a seventh bolt extending into or exiting from the slot hole, and the inserting rod can push the seventh bolt to exit from the slot hole, so that the fourth movable piece locks the connecting part.

Further, the locking and unlocking mechanism comprises a fourth locking part, a fifth locking part, a first locking part and a second switching part, wherein the fourth locking part and the fifth locking part are in linkage connection through the first locking part, the second switching part is connected to the seat part and is in transmission fit with the fourth locking part, the fourth locking part is used for being matched with a dinner plate, and the fifth locking part is used for being matched with the connecting part; when the connecting part enables the seat part to be connected with the supporting seat, the fifth locking part can lock the connecting part, and the fifth locking part drives the fourth locking part to act through the first locking part, so that the fourth locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; when the dinner plate is connected with the seat part to form a locking arrangement, the dinner plate limits the fourth locking part, so that the fifth locking part keeps locking the connecting part; when the dinner plate is separated from the seat, the second switch part can drive the fourth locking part to act, and the fourth locking part drives the fifth locking part to unlock the connecting part through the first locking part, so that the seat is allowed to be separated from the supporting seat.

Further, the dinner plate is provided with an inserting rod, the seat is provided with a slotted hole for inserting the inserting rod, the fourth locking part comprises a second movable part and an eleventh resetting part for driving the second movable part to reset, the second movable part is provided with an eighth bolt extending into or exiting from the slotted hole, the second movable part is movably arranged relative to the seat and is connected with one end of the first locking part, the second switching part is in transmission fit with the second movable part, and the inserting rod and the eighth bolt can be mutually limited.

Further, the second movable piece is pivoted to the seat, the second switch portion is slidably disposed on the seat, and a fourth chute in sliding fit with the second switch portion is disposed on the second movable piece.

Further, the fifth locking part comprises a sixth moving part, a seventh moving part, a second locking part, a twelfth resetting part and a thirteenth resetting part, the sixth moving part, the seventh moving part and the second locking part are respectively and movably arranged relative to the seat, the sixth moving part is connected with the other end of the first locking part, the sixth moving part is used for locking or unlocking the connecting part, the second locking part is used for locking the sixth moving part at the position of the unlocking connecting part, the seventh moving part is used for driving the second locking part to act to lock or unlock the sixth moving part, the twelfth resetting part is used for driving the sixth moving part to reset, and the thirteenth resetting part is used for driving the seventh moving part to reset.

Further, the sixth moving part and the seventh moving part are respectively and slidably arranged on the seat, the sixth moving part is positioned above the seventh moving part, a locking groove matched with the second locking part is formed in the sixth moving part, the second locking part is vertically and slidably arranged on the seat, the second locking part is also obliquely and slidably arranged on the seventh moving part, and the second locking part is upwardly inserted into or downwardly withdrawn from the locking groove along with the sliding of the seventh moving part.

Further, a fourteenth reset part is further arranged between the connecting part and the supporting seat or the supporting frame, and the fourteenth reset part is used for driving the connecting part to movably reset so that the first groove of the connecting part is separated from the first protruding part of the seat.

Further, the connecting portion comprises a first connecting column and a second connecting column, the first end of the first connecting column is connected with the seat, the first end of the second connecting column is connected with the supporting seat or the supporting frame, the seat is connected with the supporting seat when the second end of the first connecting column is connected with the second end of the second connecting column, and the seat is separated from the supporting seat when the second end of the first connecting column is separated from the second end of the second connecting column.

Further, the first end of the first connecting column is pivoted with the seat part, the first end of the second connecting column is pivoted with the supporting seat or the supporting frame, and the second end of the first connecting column is detachably buckled with the second end of the second connecting column.

Further, the rocking chair further comprises a blocking part, the seat part and the back part are pivotally connected, the blocking part is connected with the back part and/or the seat part, and the locking and unlocking mechanism is matched with the blocking part to limit the included angle between the seat part and the back part, wherein the adjustable maximum included angle M between the seat part and the back part when the rocking chair is positioned is larger than the adjustable maximum included angle N between the seat part and the back part when the rocking chair is positioned.

Further, the blocking portion is fixedly connected to the back portion and rotates along with the back portion, when the dinner plate is connected with the seat portion to form a locking arrangement, the locking and unlocking mechanism locks the connecting portion, and the locking and unlocking mechanism is close to the blocking portion so as to limit the continued rotation of the blocking portion.

Further, the supporting seat comprises a mounting seat, a mounting box, two fixed connecting seats and a bearing piece, the two fixed connecting seats are relatively arranged on the second supporting frame at intervals, two ends of the bearing piece are bent towards the base and are respectively connected with the two fixed connecting seats, the mounting seat and the bearing piece are fixedly arranged, the swinging part is arranged on the mounting seat, and at least one part of the swinging part, at least one part of the fixed connecting seats, the mounting seat and the bearing piece are arranged in the mounting box.

Further, a second groove for embedding the connecting part is formed in the fixed connecting seat, and an avoidance hole for avoiding the connecting part is formed in the mounting box.

Further, two supporting members are arranged, and the two supporting members are arranged at intervals.

Further, the fixed connecting seat is provided with a plug hole, and the end part of the bearing piece is inserted into the plug hole and fixed by a screw.

Further, an insertion part is arranged on the fixed connecting seat, and the insertion part is inserted into the second supporting frame and fixed through a screw.

Further, the swinging part comprises a first rotating shaft and a second rotating shaft, the supporting seat comprises a mounting seat, one ends of the first rotating shaft and the second rotating shaft are pivoted with the mounting seat, and the other ends of the first rotating shaft and the second rotating shaft are pivoted with the third connecting piece.

Further, the swing portion includes seat axis of rotation, drive shaft, swing arm, spacing groove, and the supporting seat includes mount pad, mounting box, mount pad, swing arm, spacing groove, drive shaft are installed in the mounting box, and seat axis of rotation and swing arm pivot, and the one end and the seat of seat axis of rotation are connected, and the other end of seat axis of rotation is provided with the rotating member, and the rotating member cooperates with the spacing groove, and the one end and the swing arm pivot of drive shaft, the other end and the mount pad pivot of drive shaft.

Further, the supporting seat comprises a mounting seat and a mounting box, the mounting seat is mounted in the mounting box, and a second groove for the connecting part to be inlaid in is formed in the mounting box.

Further, the supporting seat comprises a mounting seat and a mounting box, the mounting seat is mounted in the mounting box, and the second supporting frame is integrally formed and wrapped outside the mounting box.

Further, the electric motor is further arranged, the driving shaft is obliquely arranged, the other end of the driving shaft is connected with the electric motor, and the electric motor can enable the driving shaft to rotate.

Further, the supporting seat comprises a fixing piece, the installation seat is fixedly arranged on the fixing piece, and the fixing piece is fixedly arranged with the second supporting frame.

Further, the limit groove is movably arranged relative to the mounting seat, and the swing mode adjusting mechanism for adjusting the position of the limit groove is further included, and is arranged between the limit groove and the mounting box or between the limit groove and the mounting seat.

Further, swing mode adjustment mechanism includes mode control switch, lock round pin spare, the slide, third driving piece, the shifting block, the slide is fixed to be set up in the spacing groove, lock round pin spare and third driving piece all slide and set up in the slide, the shifting block pin joint is in the slide, and the other end and the third driving piece of shifting block are connected, the other end and the lock round pin spare of shifting block are connected, mode control switch is connected with the third driving piece, be provided with first interlock portion on the lock round pin spare, be equipped with on mounting box or the mount pad with first interlock portion complex second interlock portion, have a plurality of interlock positions in order to correspond the regulation spacing groove between first interlock portion and the second interlock portion and be in different positions.

Further, a sixth reset portion is provided between the latch member and the slider.

Further, the mode adjusting switch is movably connected with the third driving piece, and a seventh reset part is further arranged between the mode adjusting switch and the third driving piece.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, it will be apparent that the following description is given with reference to the accompanying drawings, which are merely specific embodiments of the present invention, and from which other drawings can be obtained by a person skilled in the art without inventive effort.

Fig. 1 is a schematic diagram of the front structure of a dining chair for infants in embodiment 1.

Fig. 2 is a schematic side view of a dining chair for infants in embodiment 1.

Fig. 3 is a schematic structural diagram of a connection position between a second support frame and a support seat of the infant dining chair according to embodiment 1.

Fig. 4 is a schematic view showing the structure of the infant dining chair according to embodiment 1.

Fig. 5 is a schematic view of the folding structure of the infant dining chair according to embodiment 1 when the dining chair is in use.

Fig. 6 is a schematic view of a visual structure of the infant dining chair of embodiment 1 from the side to the rear.

Fig. 7 is a schematic diagram of the explosive structure at F of fig. 6.

Fig. 8 is a schematic side view of the infant dining chair of embodiment 1 in the dining chair position for use as a dining chair.

Fig. 9 is a schematic cross-sectional view of the structure of fig. 8 at A.

Fig. 10 is a schematic cross-sectional view of the structure of fig. 8 at B.

Fig. 11 is a schematic diagram of an explosive structure at H of fig. 8.

Fig. 12 is an enlarged schematic view at E of fig. 11.

Fig. 13 is a schematic side view of a child dining chair of example 1 in a rocking chair position and only when the rocking chair is in use.

Fig. 14 is a schematic cross-sectional view of the structure of fig. 13 at C.

Fig. 15 is a schematic cross-sectional view of the structure of fig. 13 at D.

Fig. 16 is a schematic view of the explosive structure at I of fig. 13.

Fig. 17 is an enlarged schematic view of the structure of fig. 16 at J.

Fig. 18 is a schematic side view of a dining chair for infants in embodiment 1 with a dining plate separated from a seat in a rocking chair position.

Fig. 19 is a schematic view showing a structure of a baby dining chair according to embodiment 1 after the side surface is tilted in a dining chair position.

Fig. 20 is a schematic view of the explosive structure at K of fig. 19.

Fig. 21 is an enlarged schematic view of the structure of fig. 20 at Q.

Fig. 22 is a schematic diagram of the explosive structure at G of fig. 6.

Fig. 23 is a schematic view of an included angle structure of the first support frame and the second support frame of the infant dining chair of embodiment 1 in the dining chair position when the dining chair is in use.

Fig. 24 is an exploded schematic view of a connection mode of the swinging part at the diagonal support seat of the infant dining chair of embodiment 1.

Fig. 25 is an exploded view of an alternative connection of the swinging part at the diagonal support seat of the infant dining chair according to embodiment 1.

Fig. 26 is a schematic view showing the structure of the infant dining chair of example 1 in the dining chair position, which can be used as a rocking chair as well as a dining chair.

Fig. 27 is a schematic view of the structure of a dining chair for infants in embodiment 2.

Fig. 28 is a schematic view of a partially exploded structure of a dining chair for infants in example 2.

Fig. 29 is an exploded structural schematic view of the support base of embodiment 2.

Fig. 30 is a schematic structural diagram of the fixed connection base of embodiment 2.

Fig. 31 is a schematic cross-sectional view of the support frame of example 2.

Fig. 32 is an enlarged schematic view of the structure of fig. 31 at P.

Fig. 33 is one of schematic exploded structural views of the folding mechanism of embodiment 2.

Fig. 34 is a second schematic exploded view of the folding mechanism of embodiment 2.

Fig. 35 is a schematic view of the structure of the dinner plate of example 2.

Fig. 36 is a schematic view of an exploded structure and a partially enlarged view of the dinner plate shown in fig. 35.

Fig. 37 is a schematic view of a partially exploded structure of a dining chair for infants in example 2.

Fig. 38 is a schematic structural view of the rear cover in the mounting case of embodiment 2.

Fig. 39 is an enlarged schematic view of the structure of fig. 37 at L.

Fig. 40 is an exploded structural schematic view of the rocking mode adjusting mechanism of embodiment 2.

Fig. 41 is a schematic sectional view of the mode adjustment switch of embodiment 2 connected to the third driving member.

Fig. 42 is a partial schematic view showing a lock/unlock mechanism of the infant dining chair of embodiment 3 in cooperation with a dinner plate and a connecting portion when the chair is in a dining position.

Fig. 43 is a partial schematic view of a child dining chair of embodiment 3 after the locking and unlocking mechanism is reset in the swing position.

Fig. 44 is a partial schematic view showing a lock/unlock mechanism of the infant dining chair of embodiment 4 in cooperation with a dinner plate and a connecting portion when the chair is in a dining position.

Fig. 45 is a partial schematic view of a child dining chair of embodiment 4 after the locking and unlocking mechanism is reset in the swing position.

Fig. 46 is a partial schematic view of the embodiment 5 of the infant dining chair with the locking and unlocking mechanism engaged with the dinner plate and the connecting portion when the chair is in the dining position.

Fig. 47 is a partial schematic view of the fifth locking portion and the connecting portion of the infant dining chair of embodiment 5 in the dining chair position.

Fig. 48 is a partial schematic view of the infant dining chair of embodiment 5 after the fifth locking portion is reset in the swing position.

Fig. 49 is a partial schematic view of a locking and unlocking mechanism of the infant dining chair of embodiment 6, which is matched with the dinner plate and the connecting part when the infant dining chair is in the dining chair position.

Fig. 50 is a partial schematic view of a child dining chair of embodiment 6 after the locking and unlocking mechanism is reset in the swing position.

Fig. 51 is a partially cut-away perspective view of the infant dining chair of example 7 showing the position of the connecting portion in the dining chair position.

Fig. 52 is a partial enlarged schematic view of the S portion shown in fig. 51.

Fig. 53 is a schematic structural view of a connecting portion of embodiment 8.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the terms "first," "second," "one end," "the other end," are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified or defined otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/the" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

Embodiment 1 of the present invention will now be described with reference to fig. 1 to 26.

In this embodiment, the infant dining chair includes a dinner plate 1, a seat 2, a back 3, a support frame 5, the seat 2 and the back 3 are pivoted, the seat 2 includes a base 30 and an armrest seat 31, and further includes a swinging part 6, the swinging part 6 is connected with the base 30 and includes a support seat 4, the swinging part 6 is connected with the base 30, the swinging part 6 is arranged on the support seat 4, the seat 2 can swing parallel or nearly parallel to the support seat 4, the support frame 5 includes a first support frame 25 and a second support frame 57, and further includes a sliding mechanism 32, the sliding mechanism 32 can enable the second support frame 57 to slide up and down relative to the first support frame 25, the first support frame 25 is supported on a horizontal plane, the second support frame 57 is supported on a lower end, the second support frame 57 is fixedly arranged with the support seat 4, the seat 2 is parallel or nearly parallel to the seat through the above-mentioned invention, the nearly parallel angle between the connecting line of the swinging part 6 and the horizontal plane is not more than 10 °, so that the centrifugal force of the seat 2 and the back 3 can pass through the test in the European style, the centrifugal force can not smoothly swing 2 and the seat 2 when the infant dining chair is in use, the position is not the same as the seat 2 or the seat 2 is not stable when the seat 2 is not in the highest position relative to the seat 2, the seat 2 is not stable when the seat 2 is not in the highest position, and the seat 2 is not stable, the seat 2 is not in the standard, and the position is not stable, and the seat 2 is not swing position is the highest, and the seat 2 is not the seat 2 is required to swing is not to swing, and the highest.

Further with reference to fig. 3: the vertical line 62 between the highest point of the second support frame 57 fixed to the support seat 4 and the horizontal plane is shorter than the vertical line 63 between the lowest point of the base 30 and the horizontal plane, and the seat 2 swings relative to the support seat 4 in the rocking chair position 9, so that the highest point of the fixed point of the second support frame 57 to the support seat 4 is lower than the lowest point of the bottom of the base 30, the seat 2 can be prevented from interfering with or forming a clamping hand with the second support frame 57 in swinging, thereby having no potential safety hazard, simultaneously having no potential safety hazard in the visual sense of a consumer, ensuring that the consumer can purchase the baby with confidence, and simultaneously ensuring that the visual field of the baby is wider, thereby ensuring that the baby sits more happily and prefers sitting.

From the connection between the swinging portion 6, the base 30, the supporting seat 4 and the supporting frame 5, and from fig. 2 to 4, it can be clearly understood that the swinging portion 6 is connected below the base 30, and the supporting seat 4 is located below the seat 2, that is, the seat 2 belongs to the highest component in the infant dining chair according to the present invention, so that the defects of easy clamping and view obstruction caused by the fact that the supporting frame 5 is partially higher than the seat 2 in the infant dining chair in the swing mode in the prior art are overcome.

Further with reference to fig. 21 to 22: the third connecting piece 33 is arranged between the swinging part 6 and the base 30, the base 30 is connected with the swinging part 6 through the third connecting piece 33, the disassembly and assembly of the seat part 2 and the swinging part 6 are more convenient through the third connecting piece 33, meanwhile, the connection between the seat part 2 and the swinging part 6 is more stable, and meanwhile, the third connecting piece 33 can be connected with other functions of a seat, for example, the third connecting piece 33 can be connected with a bed body to be used as a cradle.

Further with reference to fig. 4 to 5: the first support frame 25 is provided with the folding mechanism 34, the first support frame 25 comprises a first support member 35 and a second support member 36, the folding mechanism 34 can enable the first support member 35 to be folded relative to the second support member 36, the structure does not occupy space when not used, and the package can be smaller.

It should be noted that the innovative concept of the present embodiment is not limited to the specific structure of the folding mechanism 34, and the folding mechanism 34 may be any one of known technologies to enable the first support member 35 and the second support member 36 to be folded and unfolded relatively, and of course, the folding mechanism 34 needs to relatively position at least the first support member 35 and the second support member 36 in the unfolded state to ensure the normal use of the infant dining chair. For example, the first support 35 and the second support 36 are hinged, and the folding mechanism 34 includes a spring pin provided on the second support 36 and a pin hole provided on the first support 35, where the spring pin is locked in the pin hole to achieve positioning when the first support 35 and the second support 36 are relatively unfolded.

Further with reference to fig. 23: the first support frame 25 forms an acute angle with the second support frame 57 for the inclination setting, is more favorable to the focus setting of the seat 2 to be more favorable to passing the test, and is more beautiful.

Further with reference to fig. 6: the sliding mechanism 32 comprises a sliding switch 37, a first pull rope 38 and a locking and unlocking part 39, the sliding switch 37 is connected with the first pull rope 38, the first pull rope 38 is connected with the locking and unlocking part 39, the sliding switch 37 is arranged on the supporting seat 4 or the second supporting frame 57, one end of the first pull rope 38 is connected with the sliding switch 37, the other end of the first pull rope 38 is connected with the locking and unlocking part 39, the locking and unlocking part 39 is arranged between the first supporting frame 25 and the second supporting frame 57, the locking and unlocking part 39 is driven to unlock when the sliding switch 37 is pulled upwards, so that the first supporting frame 25 and the second supporting frame 57 are unlocked, and the locking and unlocking part 39 enables the first supporting frame 25 and the second supporting frame 57 to be locked when the sliding switch 37 is released.

Further with reference to fig. 7: the lock unlocking portion 39 includes a third insertion hole 40 provided on the first support frame 25, a third latch 41 provided on the second support frame 57, a first driving member 42 connected to the third latch 41, and a third return spring 43, the first driving member 42 being connected to the other end of the first string 38, the first driving member 42 driving the third latch 41 to retreat when the first driving member 42 moves upward when the slide switch 37 is lifted upward, the third latch 41 retreating from the third insertion hole 40 so that the first support frame 25 is unlocked from the second support frame 57, and the third latch 41 extending into the third insertion hole 40 under the action of the third return spring 43 so that the first support frame 25 is locked from the second support frame 57 when the slide switch 37 is released.

It should be noted that, the sliding switch 37 may be specifically slidably disposed on the supporting seat 4 or the second supporting frame 57, and the sliding switch 37 may also be specifically rotatably disposed on the supporting seat 4 or the second supporting frame 57, so that the locking and unlocking portion 39 may be driven to unlock by the first pull rope 38 when the sliding switch 37 is actively operated, and particularly, the first driving member 42 is driven to act by the first pull rope 38 when the sliding switch 37 is actively operated, and the first driving member 42 drives the third plug 41 to withdraw from the third jack 40 to unlock. That is, in the present invention, the naming of the slide mechanism 32 and the slide switch 37 is related to the sliding of the second support bracket 57 with respect to the first support bracket 25, the naming of the slide switch 37 is not intended to limit that the switch must be slidingly disposed, but is intended to illustrate that the switch can be actively operated to be displaced with respect to the support bracket 4 or the second support bracket 57, and the displacement of the switch is utilized to pull the first pulling rope 38 to control the locking and unlocking portion 39, thereby enabling the second support bracket 57 to be slid with respect to the first support bracket 25 to adjust the height of the seat 2.

In other preferred embodiments, the sliding mechanism 32 may be any of other known techniques to enable the second support frame 57 to slide up and down relative to the first support frame 25 and to be locked in position.

Further with reference to fig. 8: the dinner plate seat is characterized by further comprising a locking and unlocking mechanism 7, a connecting part 8, a rocking chair position 9 and a dining chair position 10, wherein the connecting part 8 enables the seat part 2 to be separated from the supporting seat 4, and the locking and unlocking mechanism 7 prevents the dinner plate 1 from being connected with the seat part 2 so that the dinner plate 1 is separated from the seat part 2, and the swinging part 6 can drive the seat part 2 to swing when the dinner plate 1 is positioned at the rocking chair position 9; the connecting part 8 enables the seat part 2 to be connected with the supporting seat 4 and enables the locking and unlocking mechanism 7 to allow the dinner plate 1 to be connected with the seat part 2 to form a locking arrangement, and the dinner plate 1 is connected with the seat part 2 to form the locking arrangement, and the locking and unlocking mechanism 7 always enables the seat part 2 to be connected with the supporting seat 4 and is positioned at the dining chair position 10 at the moment; the lock-unlock mechanism 7 allows the seat 2 to be separated from the support 4 when the dinner plate 1 is separated from the seat 2. The above-mentioned matters are that when the rocking chair is used, the seat 2 and the supporting seat 4 are separated, the locking and unlocking mechanism 7 prevents the dinner plate 1 from being connected with the seat 2, so that the dining chair cannot be used, when the dining chair is used, the connecting part 8 enables the seat 2 and the supporting seat 4 to be connected, the dinner plate 1 and the seat 2 are allowed to be connected to form a locking arrangement, and after the dinner plate 1 and the seat 2 are connected to form a locking arrangement, the dinner plate 1 and the seat 2 are locked to form the locking arrangement, the locking and unlocking mechanism 7 enables the seat 2 and the supporting seat 4 to be connected and cannot be separated artificially (to be noted, the fact that the connection part 8 cannot be controlled directly by people to separate the seat 2 from the supporting seat 4 without damaging the structures of all parts of the infant dining chair), the rocking chair cannot be converted into the rocking chair 9, and only when the dinner plate 1 and the seat 2 are separated and the locking and unlocking mechanism 7 can be allowed to be unlocked artificially or unlocked or linked so that the seat 2 and the supporting seat 4 can be separated and converted into the rocking chair 9.

Since the European Union test requirements and safety standards of the dining chair are far higher than those of the rocking chair, the rocking chair position 9 must pass the European Union test requirements and safety standards as long as the dining chair position 10 can pass the European Union test requirements and safety standards, so as long as the length or width of the supporting frame 5 is set according to the European Union test requirements and safety standards of the dining chair, but if the dining plate 1 can be connected with the seat 2 when the rocking chair position 9 is connected with the seat 2, the dining chair must be tested according to the European Union test requirements and safety standards of the dining chair, the length or width of the supporting frame 5 which can pass the European Union test requirements and safety standards on the dining chair position 10 cannot pass the European Union test requirements and safety standards of the dining chair when the dining plate 1 and the seat 2 are connected on the dining chair position 9, because the dinner plate 1 can be connected with the seat 2 when the seat 9 is used, at the moment, the dinner plate 1 and the seat 2 can move away from each other when the dinner plate 1 and the seat 2 are opposite to the dining chair 10, and the length obtained by multiplying the length of the distance movement by a certain proportion is taken as the length or the width of the support frame 5 to pass European Union test requirements and safety standards, if the seat 9 is used for fixing the dinner plate 1 and the seat 2, the length of the support frame 5 required can far exceed the length of the support frame 5 when the dining chair 10 is used, so that the dinner plate 1 and the seat 2 have large volume, serious occupied space, increased packaging cost and unattractive appearance, and the invention overcomes the defects of large volume, large packaging cost and unattractive appearance of a baby dining chair, thereby achieving small volume, low cost and attractive appearance.

Further with reference to fig. 9 to 13: the lock unlocking mechanism 7 comprises a first locking part 11 and a second locking part 12, the first locking part 11 is used for preventing the dinner plate 1 from being connected with the seat 2 when the connecting part 8 is used for separating the seat 2 from the supporting seat 4 so as to separate the dinner plate 1 from the seat 2, the second locking part 12 is used for allowing the dinner plate 1 to be connected with the seat 2 to form a locking arrangement when the connecting part 8 is used for connecting the seat 2 with the supporting seat 4, the second locking part 12 is also used for allowing the seat 2 to be separated from the supporting seat 4 when the dinner plate 1 is separated from the seat 2, the seat 2 also comprises a handrail seat 31, and the lock unlocking mechanism 7 is arranged in the handrail seat 31 so as to enable the appearance to be attractive and have no potential safety hazard.

Further with reference to fig. 8 to 17: the first locking part 11 comprises a first locking component 13 and a first connecting piece 14, the first locking component 13 is connected with one end of the first connecting piece 14, the first locking part 11 further comprises a pulling piece 15, the pulling piece 15 is connected with the other end of the first connecting piece 14, the pulling piece 15, the first connecting piece 14 and the first locking component 13 are linked, the second locking part 12 comprises a second locking component 16 and a second connecting piece 17, the second locking component 16 is connected with one end of the second connecting piece 17, the second locking part 12 further comprises a third locking component 18, the third locking component 18 is connected with the other end of the second connecting piece 17, and the second connecting piece 17, the second locking component 16 and the third locking component 18 are linked.

Further with reference to fig. 13 to 18: the dinner plate 1 is provided with the inserted link 19, the seat 2 is provided with the slotted hole 20 for the inserted link 19 to be inserted, the dinner plate 1 can be inserted into the slotted hole 20 to form locking, when the dining chair is used, the inserted link 19 of the dinner plate 1 can be withdrawn from the slotted hole 20 to be used as a rocking chair, the first locking component 13 comprises a first plug pin 21, the seat 2 is provided with a first plug hole 22 for the first plug pin 21 to extend into the slotted hole 20, when the seat 2 is separated from the supporting seat 4, the first plug pin 21 penetrates through the first plug hole 22 to extend into the slotted hole 20 to prevent that most of the inserted link 19 of the dinner plate 1 cannot be inserted into the slotted hole 20, so that the dinner plate 1 and the seat 2 cannot be locked, and therefore cannot be used as the dining chair.

Further with reference to fig. 8 to 12: the second locking component 16 comprises a second bolt 23, a second jack 24 for the second bolt 23 to extend into the slotted hole 20 is arranged on the seat 2, when the inserted rod 19 of the dinner plate 1 is inserted into the slotted hole 20, the second bolt 23 is driven to move downwards through the second jack 24, when the second bolt 23 moves down, the second connecting piece 17 is driven, the second connecting piece 17 drives the third locking component 18 to be locked with the connecting part 8, the seat 2 and the supporting seat 4 are connected, and the seat 2 and the supporting seat 4 cannot be unlocked and separated, so that potential safety hazards caused by unlocking due to manual operation are prevented.

Referring to fig. 8, 10, 13, 15, one of the preferred embodiments is as follows: one end of the connecting part 8 is pivoted with the supporting seat 4 or the supporting frame 5, the other end of the connecting part 8 is connected with the seat 2 when the dining chair is used, the first groove 60 on the other end of the connecting part 8 is matched with the first protruding part 64 on the seat 2, so that the supporting seat 4, the connecting part 8 and the seat 2 are connected, the seat 2 cannot move away from the supporting seat 4 or the supporting frame 5, meanwhile, the buckle 59 on the other end of the connecting part 8 and the first protruding part 64 form slight clamping, the connecting part cannot spring open under the action of no artificial force, a lock hole 65 is further arranged on one end of the connecting part 8, the third locking assembly 18 is locked with the lock hole 65 when the dining plate 1 is connected with the seat 2 to form a lock, the lock pin can be arranged on the other end of the connecting part 8 to be locked with the third locking assembly 18, the first groove 60 on the other end of the connecting part 8 is matched with the first protruding part 64, the driving part 15 is simultaneously driven by the driving part 61 to move downwards to drive the first bolt 21 of the first locking assembly 13 to move downwards, so that the dining plate 1 is allowed to be connected with the seat 2 to form slight clamping with the first protruding part 64, the lock hole 65 can be sprung open under the action of the rocking chair 2, and the other end can be separated from the seat 2 under the action of artificial force of the rocking chair 2 can be driven by the rocking plate 49 downwards to swing 2 when the action of the rocking plate 2 is separated from the seat 2.

In another preferred embodiment, the connection manner of the two ends of the connection portion 8 may be exchanged, specifically, for example: one end of the connecting portion 8 is connected with or separated from the supporting seat 4 or the supporting frame 5, the other end of the connecting portion 8 is pivoted with the seat 2, a first groove 60 is formed in one end of the connecting portion 8, a first protruding portion 64 buckled with the first groove 60 is formed in the supporting seat 4 or the supporting frame 5, the supporting seat 4, the connecting portion 8 and the seat 2 can be connected in a matched mode, accordingly, the seat 2 cannot move away from the supporting seat 4 or the supporting frame 5, a buckle 59 can be arranged at one end of the connecting portion 8 and is used for forming slight clamping with the first protruding portion 64, the connecting portion 8 cannot be sprung out under the action of artificial force, a lock hole 65 is formed in the other end of the connecting portion 8, and when the dinner plate 1 is connected with the seat 2 to form a lock, the third locking assembly 18 is locked with the lock hole 65, rotation of the connecting portion 8 is limited, and therefore one end of the connecting portion 8 cannot be separated from the supporting seat 4 or the supporting frame 5 is limited.

Further with reference to fig. 12: the first locking assembly 13 is pivotally arranged with the seat 2, the second locking assembly 16 is pivotally arranged with the seat 2, and the pulling member 15 is pivotally arranged with the seat 2.

Further with reference to fig. 21: the third locking assembly 18 comprises a rotating lever 26, a first locking pin assembly 27, the rotating lever 26 being pivoted to the seat 2, one end of the rotating lever 26 being connected to the second connecting piece 17, the other end of the rotating lever 26 being pivoted to the first locking pin assembly 27. When the dining chair is used, the dining plate 1 enables the inserted bar 19 of the dining plate 1 to enable the second bolt 23 to move downwards to drive the third locking assembly 18, the third locking assembly 18 drives the rotating bar 26, and the rotating bar 26 drives the first locking pin assembly 27, so that the first locking pin assembly 27 is locked with the connecting part 8.

Further with reference to fig. 21: the first return spring 28 is arranged between the first locking component 13 and the seat 2, the second return spring 29 is arranged between the first locking pin component 27 and the seat 2, when the seat 2 is separated from the supporting seat 4, the first return spring 28 enables the first bolt 21 to extend into the slotted hole 20, and the second return spring 29 enables the second bolt 23 to extend into the second jack 24 after the dinner plate 1 is separated from the seat 2 so as to drive the third locking component 18 to unlock the connecting part 8.

Preferably, the first latch assembly 27 is slidably disposed on the seat 2, the first latch assembly 27 is provided with a kidney-shaped hole, the other end of the rotating rod 26 is provided with a pin, and the pin is inserted into the kidney-shaped hole and can rotate and displace relative to the kidney-shaped hole, when the rotating rod 26 rotates, the rotating rod 26 drives the first latch assembly 27 to slide through the cooperation of the kidney-shaped hole and the pin to lock the connecting portion 8, so that the structure is simpler, and the production cost is reduced. Of course, the kidney-shaped aperture and the pin may be provided interchangeably, such as with the kidney-shaped aperture provided on the pivot rod 26 and the pin provided on the first latch assembly 27.

It will be appreciated that the first return spring 28 may also be replaced by a torsion spring, a tension spring, a spring plate, a return link structure, a gravity return weight structure, or other return mechanism capable of resetting the first locking assembly 13. The second return spring 29 can also act on the rotating rod 26, and similarly, the second return spring 29 can also be replaced by a tension spring, a spring piece, a return link structure, a gravity return counterweight structure and other return mechanisms capable of realizing the return of the driving first lock pin assembly 27.

Referring to fig. 24 as one of the preferred embodiments: the swinging portion 6 includes a first rotation shaft 44 and a second rotation shaft 45, the support base 4 includes a mounting base 46, one ends of the first rotation shaft 44 and the second rotation shaft 45 pivot with the mounting base 46, and the other ends of the first rotation shaft 44 and the second rotation shaft 45 pivot with the connecting member 33.

Referring to fig. 6, 7 and 25 as one of the preferred embodiments: the swinging part 6 comprises a seat rotating shaft 47, a driving shaft 48, a swinging arm 49 and a limiting groove 50, the supporting seat 4 comprises a mounting seat 46 and a mounting box 51, the mounting seat 46, the swinging arm 49, the limiting groove 50 and the driving shaft 48 are arranged in the mounting box 51, a second groove 56 for the connecting part 8 to be embedded in is formed in the mounting box 51, the seat rotating shaft 47 and the swinging arm 49 are pivoted, one end of the seat rotating shaft 47 is connected with the seat 2, the other end of the seat rotating shaft 47 is provided with a rotating piece 52, the rotating piece 52 is matched with the limiting groove 50, one end of the driving shaft 48 is pivoted with the swinging arm 49, the other end of the driving shaft 48 is pivoted with the mounting seat 46, the second supporting frame 57 is integrally formed and wrapped outside the mounting box 51, so that the stability of the supporting seat 4 is better, and part of the area of the mounting box 51 can be shielded, the mounting box 51 is smaller in vision, so that the rocking chair is more attractive, the structure can realize various swinging modes and large by changing the different positions of the limiting groove 50, and the rocking chair is provided with a second groove 56 for the connecting part 8 to be embedded in, and the second groove 56 is basically beautiful in the appearance when the connecting part 8 is embedded in the mounting box 51.

It should be noted that, the mounting box 51 is provided with the second groove 56 into which the connecting portion 8 is inserted, and the second supporting frame 57 is integrally formed and wrapped outside the mounting box 51, and the two optimization schemes are not directly related to the specific structure of the swinging portion 6, so that when the two optimization schemes are applied, the swinging portion 6 with various structures can be applied in combination.

Further with reference to fig. 25: the seat part 2 can automatically swing without manual swing through the arrangement of the electric part 53, so that manual work is saved, and the swing is smoother due to the inclined arrangement of the driving shaft 48.

Further with reference to fig. 25: the supporting seat 4 further comprises a fixing piece 54, the mounting seat 46 is fixedly arranged on the fixing piece 54, the fixing piece 54 and the second supporting frame 57 are fixedly arranged, the swinging part 6 is arranged on the supporting seat 4 through the structure, the supporting seat 4 is stably arranged on the second supporting frame 57, the seat 2 is more stable, and the infant dining chair is more stable.

Further with reference to fig. 22: the third connecting piece 33 is a U-shaped iron pipe 55, the U-shaped base and the seat rotating shaft 47 are not welded vertically and are welded obliquely or transversely, so that the connecting height of the third connecting piece 33 and the seat rotating shaft 47 is short, the height of the supporting seat 4 is low when the seat 2 is separated from the third connecting piece 33, the packaging volume is reduced, and the U-shaped opening of the third connecting piece 33 is matched with the matched part 58 matched with the third connecting piece 33 on the base 30 transversely, so that the matching is more stable.

In other preferred embodiments, the third connecting member 33 may be detachably connected to the bottom of the base 30 by means of bolts, plugging or clamping, etc., and the specific connection manner of the third connecting member 33 and the base 30 is not limited in the present invention, so that the third connecting member 33 and the base 30 can be detached from each other.

Example 2

Embodiment 2 of the present invention will now be described with reference to fig. 27 to 39.

In this embodiment, a child dining chair is also disclosed, and the difference between this embodiment and embodiment 1 is that: the support seat 4 and the support frame 5 are different.

Referring to fig. 27 and 28, the infant dining chair of the present embodiment is the same as that of embodiment 1, and comprises a dinner plate 1, a seat 2, a back 3, a supporting seat 4, a supporting frame 5, a swinging part 6, a locking and unlocking mechanism 7, a connecting part 8, a rocking chair position 9 and a dining chair position 10; the seat 2 also comprises a base 30 and an armrest seat 31; the swinging part 6 can also enable the seat part 2 to swing parallel or nearly parallel relative to the supporting seat 4. The specific structure of the other components except the supporting base 4 and the supporting frame 5 can be referred to embodiment 1, and this embodiment will not be repeated.

The support 5 of this embodiment also has the same portions as those of embodiment 1: the support frame 5 comprises a first support frame 25, a second support frame 57 and a sliding mechanism 32, wherein the sliding mechanism 32 can enable the second support frame 57 to slide up and down relative to the first support frame 25, the first support frame 25 is supported on a horizontal plane, the first support frame 25 supports the second support frame 57 from the lower end, the second support frame 57 is fixedly arranged with the support seat 4, and the highest point of the fixed point of the second support frame 57 and the support seat 4 is lower than the lowest point of the bottom of the base 30; a folding mechanism 34 is arranged on the first supporting frame 25, the first supporting frame 25 comprises a first supporting piece 35 and a second supporting piece 36, and the folding mechanism 34 can enable the first supporting piece 35 to be folded relative to the second supporting piece 36; the first support frame 25 is disposed at an acute angle to the second support frame 57 for an oblique angle.

Referring to fig. 27 to 29, in the present embodiment, as a preferable scheme different from embodiment 1: the supporting seat 4 comprises the installation seat 46, the installation box 51, two fixed connection seats 66 and a bearing piece 67, the two fixed connection seats 66 are oppositely arranged on the second supporting frame 57 at intervals, two ends of the bearing piece 67 are bent towards the base 2 and are respectively connected with the two fixed connection seats 66, the installation seat 46 and the bearing piece 67 are fixedly arranged, the swinging part 6 is arranged on the installation seat 46, at least one part of the swinging part 6, the installation seat 46 and the bearing piece 67 are arranged in the installation box 51, and therefore the installation seat 46 is oppositely arranged on the second supporting frame 57 through the two fixed connection seats 66 and the bearing piece 67, the supporting force is not required to be provided for the installation seat 46 by utilizing the installation box 51, the strength of the installation box 51 is properly reduced, the structure of the installation box 51 is simplified, the cost is saved, all parts are shielded by utilizing the installation box 51, and a product is more beautiful. In addition, since the mounting box 51 is not required to provide supporting force for the mounting seat 46, two second supporting frames 57 are arranged at intervals in the embodiment, two fixed connecting seats 66 are respectively connected to the two second supporting frames 57, and the second supporting frames 57 do not need to be integrally formed to wrap the mounting box 51 to provide supporting force for the mounting box 51, so that the structure of the second supporting frames 57 is simplified, and the cost is further saved.

Further: the fixed connection seat 66 is provided with a second groove 56 into which the connection part 8 is inserted, and the mounting box 51 is provided with a avoiding hole 97 avoiding the connection part 8. Wherein, the connecting portion 8 can be pivotally connected to the second recess 56 and the connecting portion 8 can be embedded into the second recess 56 to form a whole with the fixed connecting seat 66 when the rocking chair is in use, thereby making the appearance more beautiful, and meanwhile, the installation box 51 does not need to be provided with a component for pivotally connecting the connecting portion 8, the installation box 51 does not need to provide supporting force for the connecting portion 8, the strength of the installation box 51 can be further reduced and the structure of the installation box 51 can be simplified.

Further with reference to fig. 29: the two supporting pieces 67 are arranged at intervals, and the two supporting pieces 67 are used for simultaneously supporting the mounting seat 46, so that the mounting seat 46 is more stable, and the seat 2 is more stable.

Further with reference to fig. 29 and 30: the fixed connecting seat 66 is provided with a plug hole 68, the end part of the supporting piece 67 is inserted into the plug hole 68 and fixed by a screw, the fixed connecting seat 66 is also provided with a screw hole 69 penetrating through the plug hole 68 correspondingly, and the screw can pass through the screw hole 69 to be screwed with the supporting piece 67 so as to fix the supporting piece 67 and the fixed connecting seat 66; the fixed connection base 66 is further provided with an insertion portion 70, and the insertion portion 70 is inserted into the second supporting frame 57 and fixed by a screw. Thus, the support 67 and the fixed connecting seat 66 and the second supporting frame 57 are detachable, so that maintenance is facilitated, and connection is stable.

The structure of the support base 4 disclosed in the present embodiment is not affected by the structure of the swinging part 6 and is not affected by the electric part 53, and therefore, when the solution of the support base 4 of the present embodiment is applied, the swinging part 6 of various types of structures may be applied in combination, the electric part 53 may be mounted, or the electric part 53 may not be mounted, depending on design requirements.

Referring to fig. 28 and 37, as a specific example, the mounting box 51 includes a bottom case 93, a left upper cover 94, a right upper cover 95, and a rear cover 96 that are connected to each other, wherein two avoidance holes 97 may be provided to correspond to the two connection portions 8, respectively, one avoidance hole 97 is provided in the left upper cover 94, and the other avoidance hole 97 is provided in the right upper cover 95. Of course, the mounting case 51 may have other configurations, and the specific configuration of the mounting case 51 is not limited in the present invention.

Referring to fig. 27, 31 and 33, in the support frame 5 of the present embodiment, unlike embodiment 1, there is: the upper end of the first support member 35 is provided with an extension portion 71, and the folding mechanism 34 is disposed between the extension portion 71 and the second support member 36, so that when the dining chair is not folded, the second support member 36 is folded downward, thereby avoiding the occurrence of a visual sense that interferes with the seat 2 during folding.

Referring to fig. 33 and 34, in this embodiment, the folding mechanism 34 is further optimized, the folding mechanism 34 includes a first switch 77, a first locking portion 76 connected with the extension portion 71, and a second locking portion 78 connected with the second support 36, the first locking portion 76 is pivoted with the second locking portion 78, a movable fourth latch 80 is disposed on the second locking portion 78, a fourth reset portion 81 for driving the fourth latch 80 to reset, a recess portion 113 for limiting, the first switch 77 is movably disposed on the first locking portion 76, a fourth insertion hole 83 in a locking fit with the fourth latch 80 and a fourth protruding portion 112 in a movable fit with the recess portion 113 are disposed on the first locking portion 76, a second protruding portion 82 in a locking fit with the fourth latch 80 is disposed on the first switch 77, so that when the first switch 77 is pressed, the first switch 77 drives the fourth latch 80 to withdraw from the fourth insertion hole 83 to unlock the first locking portion 76, and when the first switch 77 is released, the fourth latch 80 is inserted into the fourth insertion hole 83 under the driving action of the fourth reset portion 81, thereby avoiding the risk of the folding mechanism 34 being failed due to a large folding force.

The concave portion 113 and the fourth convex portion 112 function as: when the first locking portion 76 and the second locking portion 78 rotate relatively (i.e. when the first supporting member 35 and the second supporting member 36 rotate relatively), the fourth protruding portion 112 can move in the recess portion 113, and after the first supporting member 35 and the second supporting member 36 are unfolded relatively, the side wall of the recess portion 113 can abut against the fourth protruding portion 112, so as to provide a supporting force.

Further: in order to facilitate the assembly of the fourth latch and the fourth reset portion on the second lock portion 78, the second lock portion 78 includes a middle member 79 and a fifth connecting member 111, the middle member 79 is fixedly connected to one side of the fifth connecting member 111 facing the first lock portion 76, the recess portion 113 is disposed on the middle member 79, a first sliding hole 110 corresponding to the fourth latch 80 is disposed on the middle member 79, the fourth latch 80 can slide in the first sliding hole 110 and is limited by the first sliding hole 110 so as not to be separated from the middle member 79, and the fourth reset portion 81 is a fourth reset spring disposed between the fourth latch 80 and the fifth connecting member 111.

Further: according to various actions, the fourth jack 83 includes an unfolding jack and a folding jack, the second support 36 and the first support 35 are unfolded relatively when the fourth plug 80 is locked in the unfolding jack, and the second support 36 and the first support 35 are folded relatively when the fourth plug 80 is locked in the folding jack. Thus, the first supporting frame 25 can be limited in an unfolding state or a folding state through the matching of the fourth bolt 80 and the fourth jack 83, and the packaging is more convenient without loosening.

Specifically, two first sliding holes 110 corresponding to the two fourth pins 80 are provided on the intermediate member 79, the fourth return spring provides a return elastic force to act on the fourth pins 80 to cause the fourth pins 80 to pop out, four fourth insertion holes 83 are provided, two of the four fourth insertion holes are expansion position insertion holes, the other two fourth insertion holes are retraction position insertion holes, the first switch 77 is slidably provided on the first locking portion 76 along the axial direction of the fourth pins 80, the first switch 77 and the first locking portion 76 are limited by a fastening structure or the like to prevent the first switch 77 from being separated from the first locking portion 76, and four second protruding portions 82 are provided on the first switch 77 corresponding to the four fourth insertion holes 83, so that the fourth pins 80 can be driven to exit by the first switch 77 to unlock whether they are inserted into the expansion position insertion holes or the retraction position insertion holes.

Further with reference to fig. 33: the first locking portion 76 is integrally formed with the extension portion 71 to increase the strength thereof.

Further with reference to fig. 31 and 32: the first supporting member 35 includes a first plastic member 72 and a first metal member 73 disposed in the first plastic member 72, the extension portion 71 is integrally formed with the first plastic member 72, and the second supporting frame 57 includes a second plastic member 74 and a second metal member 75 disposed in the second plastic member 74. Therefore, the appearance of the support frame 5 is attractive, the support frame 5 is stable and high in strength, and deformation is not easy to occur.

Referring to fig. 27, 31 and 32, in the present embodiment, the slide mechanism 32 also includes a slide switch 37, a first pulling cord 38, a lock unlocking portion 39, and the lock unlocking portion 39 also includes a third insertion hole 40, a third latch 41, a first driver 42, and a third return spring 43. In order to make the position adjustment of the dining chair more convenient and not affected by the structure of the supporting seat 4, in the present embodiment, the slide switch 37 in the slide mechanism 32 is provided on the second supporting frame 57; based on the optimization of the first support member 35 in this embodiment, preferably, the third jack 40 in the locking and unlocking portion 39 is disposed on the first metal member 73, and the third jack 40 may not need to penetrate through the first plastic member 72, so as to realize that the third jack 40 is hidden and prevented from being blocked by sundries, keep the surface of the first support member 35 smooth and nonporous, be more attractive, and not be able to poke the third plug 41 through the third jack 40, and have high safety.

With reference to fig. 35 and 36, the present embodiment also provides a structure of the dinner plate 1, capable of achieving locking or unlocking of the dinner plate 1 on the seat 2. In this embodiment, the plunger 19 of the dinner plate 1 is provided with a second locking pin assembly 84 for locking with the seat 2, the dinner plate 1 is further provided with a second pull rope 85 and a second switch 86, one end of the second pull rope 85 is connected with the second switch 86, the other end of the second pull rope 85 is connected with the second locking pin assembly 84, the second locking pin assembly 84 can be locked or unlocked in a matched manner with the seat 2, and when the second switch 86 is pulled, the second locking pin assembly 84 can be driven to unlock through the second pull rope 85, so that the dinner plate 1 and the seat 2 are unlocked, and when the second switch 86 is released, the second locking pin assembly 84 enables the dinner plate 1 and the seat 2 to be locked.

Further: the second lock pin assembly 84 includes a fifth lock pin 87, a second driving member 88, and a fifth reset portion 89, the fifth lock pin 87 is slidably disposed on the insert rod 19 and can pass out of the insert rod 19, the second driving member 88 is slidably disposed in the insert rod 19, the other end of the second pull rope 85 is connected with the second driving member 88, the fifth reset portion 89 is disposed between the second driving member 88 and the insert rod 19, the second driving member 88 is provided with a first chute 91, and the fifth lock pin 87 is provided with a third protruding portion 90 matched with the first chute 91.

The first jack 22 or the second jack 24 in the seat 2 may be matched with the fifth latch 87 to realize locking or unlocking, or an additional jack may be provided in the seat 2 to be matched with the fifth latch 87, which is not limited in this embodiment; the insert rod 19 is provided with a second sliding hole 92 for exposing the fifth latch 87, and the fifth reset portion 89 is preferably a fifth reset spring, and the fifth reset spring provides a reset elastic force to act on the fourth latch 80 so as to reset the second driving piece 88 and further enable the fourth latch 80 to pop out of the second sliding hole 92.

In the above scheme, when the second switch 86 is pulled, the second pull rope 85 drives the second driving member 88 to slide relative to the plunger 19, and the second driving member 88 can drive the fifth latch 87 to retract into the plunger 19 through the cooperation of the first chute 91 and the third protrusion 90, so as to realize unlocking, and at this time, the dinner plate 1 can be detached to be used as the rocking chair.

Still preferably, the second switch 86 is slidably disposed at the bottom of the dinner plate 1, so as to keep the upper surface of the dinner plate 1 simple and attractive, and avoid misoperation of the second switch 86 by infants, thereby improving safety.

Referring to fig. 37-40, the infant dining chair of the present embodiment further includes a rocking mode adjustment mechanism 98, wherein the rocking mode adjustment mechanism 98 is operable to adjust the position of the limit slot 50, thereby enabling adjustment of the various rocking modes of the infant dining chair.

In this embodiment, the same as in embodiment 1: the swinging portion 6 also includes a seat rotating shaft 47, a driving shaft 48, a swinging arm 49, and a limiting groove 50, the seat rotating shaft 47 is pivoted with the swinging arm 49, one end of the seat rotating shaft 47 is connected with the seat 2, the other end of the seat rotating shaft 47 is provided with a rotating member 52, the rotating member 52 is matched with the limiting groove 50, one end of the driving shaft 48 is pivoted with the swinging arm 49, and the other end of the driving shaft 48 is pivoted with the mounting seat 46.

Wherein, the limiting groove 50 is movably arranged relative to the mounting seat 46, the swing mode adjusting mechanism 98 is arranged between the limiting groove 50 and the mounting box 51, or the swing mode adjusting mechanism 98 is arranged between the limiting groove 50 and the mounting seat 46.

Further with reference to fig. 39 and 40: the swing mode adjusting mechanism 98 includes a mode adjusting switch 99, a lock pin member 100, a slide seat 101, a third driving member 102, and a shifting block 103, where the slide seat 101 is fixedly disposed in the limit groove 50, the lock pin member 100 and the third driving member 102 are both slidably disposed in the slide seat 101, the shifting block 103 is pivotally connected to the slide seat 101, one end of the shifting block 103 is connected to the third driving member 102, the other end of the shifting block 103 is connected to the lock pin member 100, the mode adjusting switch 99 is connected to the third driving member 102, a first engaging portion 108 is disposed on the lock pin member 100, a second engaging portion 109 that is matched with the first engaging portion 108 is disposed on the mounting box 51 or the mounting seat 46, in this embodiment, the second engaging portion 109 is preferably disposed on the rear cover 96 of the mounting box 51, and a plurality of engaging positions are provided between the first engaging portion 108 and the second engaging portion 109 to correspondingly adjust the limit groove 50 to be located at different positions. Thus, when the mode adjusting switch 99 is pulled, the third driving member 102 slides relative to the sliding seat 101 to drive the shifting block 103 to rotate, the other end of the shifting block 103 drives the locking pin member 100 to slide so that the first engaging portion 108 is separated from the second engaging portion 109 to unlock, at this time, the swing mode adjusting mechanism 98 can change positions along with the limiting slot 50, and after the position of the limiting slot 50 is changed, the first engaging portion 108 and the second engaging portion 109 can be locked in the corresponding new engaging positions in a re-engaging manner, so as to re-lock the limiting slot 50.

As a specific example, the slide 101 is provided with a first sliding groove 105 and a second sliding groove 106 which are parallel to each other, the lock pin member 100 is slidably disposed on the first sliding groove 105, the third driving member 102 is slidably disposed on the second sliding groove 106, the shifting block 103 is pivoted between the first sliding groove 105 and the second sliding groove 106, one end of the shifting block 103 is inserted into the third driving member 102, and the other end of the shifting block 103 is inserted into the lock pin member 100, so that the smoothness and the accuracy of the locking action are improved.

As a specific example, the limiting slot 50 is pivotally or ball-jointed to the mounting base 46, the first engaging portion 108 is a plurality of aligned gear shaping teeth, the second engaging portion 109 is a plurality of aligned slots, the number of slots is greater than the number of gear shaping teeth so as to form a plurality of engaging positions, and the plurality of slots are preferably arranged in an inclined manner, at this time, the position of the limiting slot 50 can be changed by swinging the mode adjusting switch 99 from side to side in the unlocked state, and the unlocking action direction of the mode adjusting switch 99 is perpendicular to the position adjusting action direction, so that the operation is convenient and is not easy to be confused with the unlocking action.

In other preferred embodiments, the first engaging portion 108 and the second engaging portion 109 can be locked or unlocked by other matching methods, and the limiting groove 50 can be slidably disposed on the mounting seat 46 along a predetermined track, which can be changed according to the requirement of the swing mode to be realized.

Further with reference to fig. 40: a sixth reset portion 104 is provided between the latch 100 and the slider 101, and the sixth reset portion 104 is preferably a sixth reset spring, and the sixth reset portion 104 can drive the latch 100 to reset so that the first engaging portion 108 is engaged with the second engaging portion 109 for locking.

Further with reference to fig. 40 and 41: the mode adjusting switch 99 is movably connected with the third driving member 102, and a seventh reset portion 107 is further provided between the mode adjusting switch 99 and the third driving member 102. Specifically, the plug pin 114 of the third driving member 102 passes through the through hole 115 of the mode adjusting switch 99, and the plug pin 114 and the through hole 115 have a gap so that the mode adjusting switch 99 can move along the radial direction of the through hole 115 relative to the third driving member 102, the seventh reset portion 107 is a seventh reset spring, and the seventh reset spring is mounted on the plug pin 114 of the third driving member 102 by means of a gasket, a screw, or the like, and the seventh reset spring is also abutted against the periphery of the through hole 115 of the third driving member 102, so that when the position of the limit slot 50 is adjusted by the mode adjusting switch 99, the mode adjusting switch 99 can move relative to the third driving member 102, and the mode adjusting switch 99 can avoid interference with the mounting box 51 along with inclination.

In other preferred embodiments, the reset of the latch member 100 may be indirectly achieved by providing a torsion spring at the dial 103 or a spring at the third driving member 102, such that the first engagement portion 108 is engaged with the second engagement portion 109, and the reset mode of the latch member 100 is not limited herein.

It should be understood that any one of the torsion spring, the tension spring, the spring piece, the gravity reset weight structure and other reset mechanisms that can realize the reset operation to be realized by each reset portion may be adopted for the fourth reset portion 81, the fifth reset portion 89, the sixth reset portion 104, and the seventh reset portion 107, and the specific structure of the fourth reset portion 81, the fifth reset portion 89, the sixth reset portion 104, and the seventh reset portion 107 is not limited in the present invention.

Example 3

Referring to fig. 42 and 43, the present embodiment also discloses a dining chair for infants, which is different from embodiment 1 in that: the second locking assembly 16 and the third locking assembly 18 are different.

The infant dining chair of the present embodiment also comprises a dinner plate 1, a seat 2, a back 3, a supporting seat 4, a supporting frame 5, a swinging part 6, a locking and unlocking mechanism 7 and a connecting part 8, and comprises a rocking chair position 9 and a dining chair position 10, wherein the locking and unlocking mechanism 7 comprises a first locking part 11 and a second locking part 12, the second locking part 12 comprises a second locking assembly 16, a second connecting piece 17 and a third locking assembly 18, the second locking assembly 16 is connected with one end of the second connecting piece 17, the third locking assembly 18 is connected with the other end of the second connecting piece 17, and the second connecting piece 17, the second locking assembly 16 and the third locking assembly 18 are linked. Wherein the second locking assembly 16 is adapted to cooperate with the dish 1 and is limited by the dish 1 and the third locking assembly 18 is adapted to lock or unlock the connection 8. The specific structure of the other components except the second locking assembly 16 and the third locking assembly 18 can be referred to embodiment 1, and this embodiment will not be repeated.

Referring to fig. 42 and 43, unlike embodiment 1, in the present embodiment, the third locking assembly 18 includes an eighth reset portion and a first locking piece 117 for locking or unlocking the connection portion 8, the first locking piece 117 being movably disposed with respect to the seat portion 2 and connected with the other end of the second connection piece 17, the eighth reset portion being capable of driving the first locking piece 117 to move reset toward the connection portion 8 to lock the connection portion 8.

Thus, when the dining chair is in use, the second locking assembly 16 is limited by the dinner plate 1, the second locking assembly 16 cannot apply force to the first locking piece 117 through the second connecting piece 17, and at this time, the first locking piece 117 is mainly influenced by the reset force of the eighth reset portion, so that the locking connecting portion 8 is kept, the seat 2 and the supporting seat 4 cannot be unlocked and separated, and potential safety hazards caused by unlocking by manual operation are prevented.

Preferably, the first locking element 117 is slidably arranged on the seat 2 in a direction towards or away from the connecting portion 8, and the eighth restoring portion comprises an eighth restoring spring 116, and the eighth restoring spring 116 is arranged between the first locking element 117 and the seat 2 and elastically drives the first locking element 117 to slide towards the connecting portion 8, and specifically enables the first locking element 117 to be inserted into the locking hole 65 of the connecting portion 8.

In other embodiments, the eighth restoring portion may also be a torsion spring, a spring plate, a restoring link structure, a gravity restoring counterweight structure, or other structures capable of playing a restoring role, and the specific style or structure of the eighth restoring portion is not limited herein.

In other embodiments, the first locking element 117 may be pivoted to the seat 2 or moved along a predetermined track relative to the seat 2, so long as the first locking element 117 can lock or unlock the connecting portion 8, which does not limit the movement of the first locking element 117.

Referring to fig. 42 and 43, unlike embodiment 1, in this embodiment, the second locking assembly 16 comprises a first switch portion 118 and a first movable member 119, and a limit portion is provided on the first movable member 119, and is used for matching with the insert rod 19 of the dinner plate 1, specifically, when the insert rod 19 of the dinner plate 1 is inserted into the slot hole 20 of the seat 2, the limit portion is limited by the insert rod 19; the first movable member 119 is movably disposed relative to the seat 2 and connected to one end of the second connecting member 17, and the first switch portion 118 is connected to the seat 2 and is in transmission fit with the first movable member 119, so that the first movable member 119 can be driven to move relative to the seat 2 by operating the first switch portion 118, and the first locking member 117 can be driven to synchronously move by the first movable member 119 through the second connecting member 17.

Thus, when the dinner plate 1 is separated from the seat 2, the first switch part 118 can drive the first movable part 119 to act, and the first locking part 117 is driven by the second connecting part 17 to unlock the connecting part 8; when the dinner plate 1 is connected with the seat 2 to form a locking arrangement, that is, when the insert rod 19 of the dinner plate 1 is inserted into the slot 20 of the seat 2, the insert rod 19 limits the limiting part, so that the first locking piece 117 keeps locking the connecting part 8 under the action of the eighth resetting part.

Preferably, in the present embodiment, the limiting portion includes a sixth pin 120 for extending into or exiting from the slot 20, the first movable member 119 is slidably disposed on the seat 2 along a first direction, the first switch portion 118 is slidably disposed on the seat 2 along a second direction, the first direction and the second direction form an included angle, and the first movable member 119 is provided with a second chute 122 slidably engaged with the first switch portion 118, so that the sliding direction of the first switch portion 118 and the first movable member 119 can be switched by using the second chute 122.

Specifically, the first direction may be a vertical or near vertical direction, and the second direction may be a horizontal or near horizontal direction. The sliding track of the first movable member 119 and the first switch portion 118 in the seat portion 2 may be limited by a chute, a rail, or the like, and the present invention is not limited thereto.

Thus, when the dinner plate 1 is connected with the seat 2 to form a locking arrangement, the inserted bar 19 can block the sixth inserted pin 120 to limit the sixth inserted pin 120 to be kept at the position of exiting the slotted hole 20; when the dinner plate 1 is separated from the seat 2, the first switch portion 118 is slid in the second direction to drive the first movable member 119 to slide in the first direction, and the first movable member 119 can drive the sixth latch 120 to extend into the slot 20.

Referring to fig. 42 and 43, and referring to the direction shown in fig. 42, in order to facilitate understanding of the scheme of the embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly, the dinner plate 1 is detached from the seat 2, the restriction of the inserted link 19 on the sixth bolt 120 is released, then the first switch part 118 is slid, the first switch part 118 drives the first movable part 119 to slide upwards to drive the sixth bolt 120 to extend into the slotted hole 20, the first movable part 119 slides upwards and simultaneously exerts force on the first locking part 117 through the second connecting part 17, so that the first locking part 117 slides leftwards to compress the eighth return spring 116 and is separated from the locking hole 65 of the connecting part 8, the connecting part 8 is unlocked, then the other end of the connecting part 8 can be pulled upwards to be separated from the seat 2, the swing arm 49 of the swing part 6 can drive the seat 2 to swing, when the connecting part 8 is separated from the seat 2, the connecting part 8 releases the pressing of the pulling part 15, at this time, the first locking component 13 is mainly affected by the restoring force of the first restoring spring 28, the first restoring spring 28 drives the first locking component 13 to rotate clockwise and enables the first bolt 21 to extend upwards into the slotted hole 20, meanwhile, the first locking component 13 drives the pulling piece 15 to rotate anticlockwise for restoring through the first connecting piece 14, at this time, the first bolt 21 prevents that a large part of the inserted rod 19 of the dinner plate 1 cannot be inserted into the slotted hole 20 so that the dinner plate 1 cannot be locked with the seat 2, the first switch part 118 can be released so that the first movable piece 119, the sixth bolt 120 and the first locking piece 117 are restored, at this time, a rocking chair position is formed, and a consumer can be used for soothing the rocking chair when the pressure that a child needs to hold the child in real time, and vacating other things.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat 2, the connecting part 8 presses the pulling part 15 to rotate clockwise, the pulling part 15 drives the first locking component 13 to rotate anticlockwise through the first connecting part 14 to compress the first reset spring 28, the first plug pin 21 is led to be withdrawn downwards from the slotted hole 20, the restriction of the first plug pin 21 on the plug pin 19 is relieved, the connecting part 8 presses the pulling part 15 and simultaneously presses the first locking part 117 to move leftwards to compress the eighth reset spring 116, when the first groove 60 of the connecting part 8 is inserted into the corresponding depth of the first protruding part 64 of the seat 2, the connecting part 8 does not press the first locking part 117 to move leftwards, the first locking part 117 moves rightwards under the action of the eighth reset spring 116 to be locked after being inserted into the locking hole 65 of the connecting part 8, then the plug pin 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat 2, at the moment, the sixth plug pin 19 is limited to be kept at the position withdrawn from the seat 20, at the moment, the dining position cannot be formed, and the first switch part 119 at the moment cannot push the first movable part 119 to slide upwards to drive the first locking part 117 cannot be driven upwards to form the position of the rocking chair, and the safety of a consumer can not swing seat 117 can be unlocked through the position of the rocking chair, and the safety of the consumer can be ensured, and the safety can not be ensured, and the safety of the seat can be safely swung, and the position can be safely and the position can pass through the position and the position can be ensured.

Example 4

Referring to fig. 44 and 45, this embodiment also discloses a dining chair for infants, which is different from embodiment 3 in that: the difference of the limiting parts, the difference of the moving modes of the first moving piece 119, and the difference of the corresponding switching modes of the actions of the first switch part 118 and the first moving piece 119.

Unlike embodiment 3, in this embodiment, the limiting portion includes a hook 121 for hooking on the inserting rod 19, the first movable member 119 is pivotally connected to the seat 2, the first switch portion 118 is slidably disposed on the seat 2, the first movable member 119 is provided with a third inclined slot 123 slidably engaged with the first switch portion 118, wherein one end of the second connecting member 17 is connected to one end of the first movable member 119, and the hook 121 is disposed at the other end of the first movable member 119, at this time, the first movable member 119 is substantially in a see-saw structure, and when one end of the first movable member 119 moves upward, the other end of the first movable member 119 moves downward.

Specifically, as in embodiment 3, the first switch portion 118 may be slidably disposed on the seat 2 along a horizontal or nearly horizontal direction, and the first switch portion 118 is preferably connected to one end of the first movable member 119 simultaneously with the second connecting member 17, so that no additional avoiding structure is required to avoid interference; of course, the first switch portion 118 may be connected to the other end of the first movable member 119 simultaneously with the hook 121, so as to drive the first movable member 119 to rotate.

Thus, in the above-described solution, when the dish 1 is connected to the seat 2 to form a locking arrangement, the rod 19 is inserted into the slot 20 and limits the hooks 121 to remain in position extending into the slot 20, so as to form a lock for the hooks 121; when the dinner plate 1 is separated from the seat 2, the first switch part 118 is slid to drive the first movable part 119 to rotate, and the first movable part 119 can drive the hook 121 to withdraw from the slot 20.

The specific structure of the other components except the above-described stopper portion, first movable member 119, and first switch portion 118 can be referred to embodiment 3 and embodiment 1, and this embodiment will not be repeated.

Referring to fig. 44 and 45, and referring to the direction shown in fig. 44, in order to facilitate understanding of the scheme of the embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly, the dinner plate 1 is detached from the seat 2, the locking of the inserted link 19 to the hook 121 is released, then the first switch part 118 is slid, the first switch part 118 drives the first movable part 119 to rotate anticlockwise, the other end of the first movable part 119 descends to drive the hook 121 to withdraw from the slotted hole 20 downwards, one end of the first movable part 119 ascends and applies force to the first locking part 117 through the second connecting part 17, so that the first locking part 117 slides leftwards to compress the eighth reset spring 116 and is separated from the locking hole 65 of the connecting part 8, the connecting part 8 is unlocked, then the other end of the connecting part 8 can be pulled upwards to be separated from the seat 2, so that the swinging arm 49 of the swinging part 6 can drive the seat 2 to swing, when the connecting part 8 is separated from the seat 2, the pressing of the pulling part 15 by the connecting part 8 is released, at this time, the first locking component 13 is mainly affected by the restoring force of the first restoring spring 28, the first restoring spring 28 drives the first locking component 13 to rotate clockwise and enables the first bolt 21 to extend upwards into the slotted hole 20, meanwhile, the first locking component 13 drives the pulling piece 15 to rotate anticlockwise for restoring through the first connecting piece 14, at this time, the first bolt 21 prevents that a large part of the inserted rod 19 of the dinner plate 1 cannot be inserted into the slotted hole 20 so that the dinner plate 1 cannot be locked with the seat 2, the first switch part 118 can be released so that the first movable piece 119, the hook 121 and the first locking piece 117 are restored, at this time, a rocking chair position is formed, and a consumer can be used as the rocking chair to relieve the pressure of a child who needs to hold the child in real time, and vacate time to do other things.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat 2, the connecting part 8 is pressed against the pulling part 15 to rotate clockwise, the pulling part 15 drives the first locking component 13 to rotate anticlockwise through the first connecting part 14 to compress the first reset spring 28, the first plug pin 21 is led to be withdrawn downwards from the slotted hole 20, the restriction of the first plug pin 21 on the plug pin 19 is relieved, the connecting part 8 is pressed against the pulling part 15 and simultaneously presses against the first locking part 117 to move leftwards to compress the eighth reset spring 116, when the first groove 60 of the connecting part 8 is inserted into the corresponding depth of the first protruding part 64 of the seat 2, the connecting part 8 is not pressed against the first locking part 117 to move leftwards, the first locking part 117 moves rightwards under the action of the eighth reset spring 116 to be locked when the first locking part 117 is inserted into the slotted hole 65 of the connecting part 8, then the plug pin 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat 2, at the moment, the first switching part 118 can not push the first movable part 119 to rotate anticlockwise to push the first locking part to form a dinner position, the dinner seat can not be unlocked, and the consumer can not swing safety can be ensured, and the safety of the consumer can not swing the seat can be ensured.

Example 5

Referring to fig. 46 to 48, this embodiment also discloses a dining chair for infants, which is different from embodiment 1 or 2 or 3 in that: the lock-unlock mechanism 7 is different.

The infant dining chair of this embodiment also includes a dinner plate 1, a seat 2, a back 3, a support seat 4, a support frame 5, a swinging part 6, a locking and unlocking mechanism 7, a connecting part 8, and a rocking chair position 9 and a dining chair position 10, as in embodiment 1. The specific structure of the other components except for the lock-unlock mechanism 7 can be referred to embodiment 1, and this embodiment will not be repeated.

Referring to fig. 46, differently, in this embodiment, the locking and unlocking mechanism 7 includes a fourth locking portion 132, a fifth locking portion 137, a sixth connecting member 138, and a second switch portion 139, where the fourth locking portion 132 and the fifth locking portion 137 are connected in linkage by the sixth connecting member 138, the second switch portion 139 is connected to the seat 2 and is in transmission fit with the fourth locking portion 132, the fourth locking portion 132 is used to be matched with the dinner plate 1, and the fifth locking portion 137 is used to be matched with the connecting portion 8.

When the connecting part 8 connects the seat part 2 with the supporting seat 4, the fifth locking part 137 can lock the connecting part 8, and the fifth locking part 137 drives the fourth locking part 132 to act through the sixth connecting piece 138, so that the fourth locking part 132 allows the dinner plate 1 to be connected with the seat part 2 to form a locking arrangement; when the dinner plate 1 is connected with the seat part 2 to form a locking arrangement, the dinner plate 1 limits the fourth locking part 132, so that the fifth locking part 137 keeps locking the connecting part 8, the seat part 2 cannot be manually separated from the supporting seat 4, and the chair position 9 cannot be converted to be used as a rocking chair; when the dinner plate 1 and the seat 2 are separated, the second switch part 139 can drive the fourth locking part 132 to act, and the fourth locking part 132 drives the fifth locking part 137 to unlock the connecting part 8 through the sixth connecting piece 138, so that the seat 2 and the supporting seat 4 are allowed to be separated, and then the seat 2 and the supporting seat 4 can be separated and converted into the rocking chair position 9 by manual unlocking or automatic unlocking or linkage unlocking.

Thus, the switching and condition limitation of the locking and unlocking mechanism 7 to the rocking chair position 9 and the dining chair position 10 of the infant dining chair are realized. Compared with the locking and unlocking mechanism 7 of embodiment 1, the locking and unlocking mechanism 7 of the scheme has a simpler overall structure and higher functional integration.

Referring to fig. 46, preferably, the fourth locking portion 132 includes a second movable member 133 and an eleventh resetting portion for driving the second movable member 133 to reset, the second movable member 133 is provided with an eighth pin 135 extending into or out of the slot 20, the second movable member 133 is movably disposed with respect to the seat 2 and connected with one end of the sixth connecting member 138, the second switch portion 139 is in driving engagement with the second movable member 133, the insert rod 19 and the eighth pin 135 can be mutually restricted, i.e., the insert rod 19 is restricted from extending into the slot 20 any more when inserted into the slot 20, and conversely, the insert rod 19 is restricted from being inserted into the slot 20 any more when the eighth pin 135 extends into the slot 20.

Thus, when in the dining chair position 10, the plunger 19 limits the eighth latch 135 to remain in position to exit the slot 20; when in the rocking position 9, the eleventh reset portion drives the second movable member 133 to drive the eighth latch 135 to extend into the slot 20, and the eighth latch 135 prevents the insert rod 19 from being inserted into the slot 20.

Still preferably, the second movable member 133 is pivotally connected to the seat 2, the second switch portion 139 is slidably disposed on the seat 2, and a fourth chute 134 slidably engaged with the second switch portion 139 is disposed on the second movable member 133, so that the movement modes of the second switch portion 139 and the second movable member 133 can be converted by using the fourth chute 134.

Specifically, the second switch portion 139 may be slidably disposed on the seat 2 along a horizontal or nearly horizontal direction, one end of the second movable member 133 is pivotally connected to the seat 2, and the other end of the second movable member 133 is configured to be connected to the sixth connecting member 138 by an eighth pin 135, so that the second movable member 133 forms a swing link structure, and at this time, when the other end of the second movable member 133 is driven to swing upwards by the second switch portion 139, the second movable member 133 can extend the eighth pin 135 upwards into the slot 20 and pull the sixth connecting member 138 upwards.

In another preferred embodiment, the second movable member 133 is further slidably disposed on the seat 2 along a vertical or near vertical direction like the first movable member 119 of embodiment 3, and at this time, the second movable member 133 is driven to slide upward by the second switch 139 so as to extend the eighth latch 135 upward into the slot 20 and pull the sixth connecting member 138 upward.

In this embodiment, the eleventh restoring portion is preferably an eleventh restoring spring 136, where the eleventh restoring spring 136 is disposed between the second movable member 133 and the seat 2, and the eleventh restoring spring 136 provides a restoring elastic force to act on the second movable member 133 and is used to indirectly drive the eighth latch 135 to restore and extend into the slot 20 when a preset condition is met. The condition that the preset condition is satisfied means that the dinner plate 1 is separated from the seat 2, and the fifth locking portion 137 does not apply a force to the second movable member 133 through the sixth connecting member 138 to limit the second movable member 133.

Referring to fig. 46 to 48, in the present embodiment, the fifth locking portion 137 includes a sixth movable member 140, a seventh movable member 142, a second locking member 143, a twelfth reset portion, and a thirteenth reset portion, the sixth movable member 140, the seventh movable member 142, and the second locking member 143 are movably disposed with respect to the seat 2, respectively, and the sixth movable member 140 is connected to the other end of the sixth connecting member 138, the sixth movable member 140 is used for locking or unlocking the connecting portion 8, the second locking member 143 is used for locking the sixth movable member 140 at a position of unlocking the connecting portion 8, the seventh movable member 142 is used for driving the second locking member 143 to act to lock or unlock the sixth movable member 140, the twelfth reset portion is used for driving the sixth movable member 140 to reset, and the thirteenth reset portion is used for driving the seventh movable member 142 to reset. Thus, when the connecting part 8 connects the seat 2 with the supporting seat 4, the connecting part 8 drives the seventh movable member 142 to move, the seventh movable member 142 drives the second locking member 143 to act so as to unlock the sixth movable member 140, and the sixth movable member 140 moves to lock the connecting part 8 under the driving action of the twelfth reset part; when the sixth movable member 140 moves the unlocking connection portion 8 under the action of the second switch portion 139, the thirteenth reset portion drives the seventh movable member 142 to reset, and the seventh movable member 142 drives the second locking member 143 to reset to lock the sixth movable member 140.

In the present embodiment, the twelfth restoring portion is preferably a twelfth restoring spring 144, the twelfth restoring spring 144 is disposed between the sixth movable member 140 and the seat 2, and the twelfth restoring spring 144 provides a restoring elastic force to act on the sixth movable member 140; the thirteenth return portion is preferably a thirteenth return spring 145, the thirteenth return spring 145 being provided between the seventh movable member 142 and the seat portion 2, the thirteenth return spring 145 providing a return spring force to act on the seventh movable member 142.

Specifically, the twelfth restoring force provided by the sixth movable member 140 is greater than the eleventh restoring force provided by the eleventh restoring member provided by the second movable member 133, so that the sixth movable member 140 maintains the locking connection 8 and the second movable member 133 rotates downward to maintain the eighth pin 135 out of the slot 20 when not affected by other external forces.

In other embodiments, the eleventh reset portion, the twelfth reset portion, and the thirteenth reset portion may be other structures capable of playing a reset role, such as a torsion spring, an elastic sheet, a reset link structure, and a gravity reset weight structure, and the specific style or structure of the eleventh reset portion, the twelfth reset portion, and the thirteenth reset portion are not limited herein.

In this embodiment, preferably, the sixth moving member 140 and the seventh moving member 142 are respectively slidably disposed on the seat 2, the sixth moving member 140 is located above the seventh moving member 142, the sixth moving member 140 is provided with a locking slot 141 matched with the second locking member 143, the second locking member 143 is slidably disposed on the seat 2 up and down, the second locking member 143 is also obliquely slidably disposed on the seventh moving member 142, and the second locking member 143 is inserted into or withdrawn from the locking slot 141 up and down along with the sliding of the seventh moving member 142.

In other embodiments, the second locking member 143 may be connected to the seat 2 by swinging, moving along a preset track, or the like, so as to lock or unlock the sixth movable member 140 driven by the seventh movable member 142, and the specific structure of the second locking member 143 is not limited herein.

Referring to fig. 46, and referring to the direction shown in fig. 46, for the convenience of understanding the scheme of the embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly removing the dinner plate 1 from the seat 2, removing the restriction of the inserted rod 19 on the eighth latch 135, secondly sliding the second switch 139, driving the second movable part 133 to rotate upwards by the second switch 139 to drive the eighth latch 135 to extend into the slot 20, simultaneously rotating upwards by the second movable part 133 and applying force to the sixth movable part 140 through the sixth movable part 138, so that the sixth movable part 140 slides leftwards to the position corresponding to the position of the locking groove 141 of the sixth movable part 140 and the second locking part 143, the sixth movable part 140 compresses the twelfth reset spring 144 and breaks away from the lock hole 65 of the connecting part 8, thereby unlocking the connecting part 8, then the other end of the connecting part 8 can be pulled upwards to be separated from the seat 2, so that the swing arm 49 of the swing part 6 can drive the seat 2 to swing, when the connecting part 8 is separated from the seat 2, the thirteenth reset spring 145 drives the seventh movable part 142 to slide rightwards to reset, and the seventh movable part 142 is driven to gradually move upwards to insert the locking groove 141 when reset, thereby releasing the left movable part 135 from the position of the eighth latch 135, and the pressure of the dinner plate 19 can not be released from the slot 20 when the infant is needed, and the dinner plate can be prevented from being inserted into the seat 2 by the small infant 1.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat part 2, the connecting part 8 pushes the seventh movable part 142 to slide leftwards to compress the thirteenth return spring 145, when the first groove 60 of the connecting part 8 is inserted into the corresponding depth of the first protruding part 64 of the seat part 2, the connecting part 8 does not push the seventh movable part 142 to move leftwards, the seventh movable part 142 drives the second locking part 143 to gradually move downwards to be separated from the locking groove 141 when sliding leftwards, so as to unlock the sixth movable part 140, the sixth movable part 140 slides rightwards under the action of the twelfth return spring 144 and is inserted into the locking hole 65 of the connecting part 8 to form locking, the sixth movable part 140 can exert force on the second movable part 133 through the sixth connecting part 138 when sliding rightwards, so that the second movable part 133 rotates downwards to drive the eighth plug pin 135 to withdraw from the slotted hole 20, then the plug rod 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat part 2 to form locking with the dinner plate 1, and the seat part 2 is limited by the plug rod 19 to be kept at the position of the withdrawn slotted hole 20, the position 139 is formed, and the second switch part 139 can not push the second movable part 140 to slide rightwards and then the sixth movable part 140 can not swing upwards to form the safety of the rocking chair, and the consumer can not swing safety can be ensured, and the safety can not be ensured, and the consumer can swing safety can be ensured, and the seat can not swing upwards and the seat can be safely and the swing upwards and the seat can be safely passed through the rocking chair.

Example 6

Referring to fig. 49 and 50, this embodiment also discloses a dining chair for infants, which is different from embodiment 1 or 2 or 3 or 4 in that: the locking and unlocking mechanisms are different.

Referring to fig. 49 and 50, differently, in the present embodiment, the locking and unlocking mechanism 7 includes a third locking portion 124 and a movable portion 128, the movable portion 128 is respectively engaged with the third locking portion 124 and the connecting portion 8, and the third locking portion 124 is respectively engaged with the dinner plate 1 and the connecting portion 8; the movable part 128 is used for releasing the restriction of the third locking part 124 when the connecting part 8 connects the seat 2 with the supporting seat 4, so that the third locking part 124 allows the dinner plate 1 to be connected with the seat 2 to form a locking arrangement; the third locking part 124 is used for locking the connecting part 8 when the dinner plate 1 is connected with the seat part 2 to form a locking arrangement, so that the seat part 2 is always connected with the supporting seat 4; the third locking portion 124 also serves to unlock the connection portion 8 when the dinner plate 1 is separated from the seat 2, thereby allowing the seat 2 to be separated from the support seat 4; the movable portion 128 also serves to limit the third locking portion 124 when the connection portion 8 separates the seat 2 from the support seat 4, so that the third locking portion 124 prevents the dish 1 from being connected to the seat 2, thereby separating the dish 1 from the seat 2. In this way, when the dinner plate 1 is positioned at the dining chair position 10, the third locking part 124 is limited, so that the third locking part 124 keeps locking the connecting part 8, the connection between the seat 2 and the supporting seat 4 cannot be manually separated, the rocking chair position 9 cannot be converted, and when the rocking chair is used, only after the third locking part 124 is unlocked by the connecting part 8 when the dinner plate 1 is separated from the seat 2, the seat 2 and the supporting seat 4 can be separated and can be converted into the rocking chair position 9 by manually unlocking or automatically unlocking or linkage unlocking; when in the rocking chair position 9, the movable part 128 limits the third locking part 124 to prevent the dinner plate 1 from being connected with the seat 2, so that the dinner plate 1 cannot be manually mounted on the seat 2, the dinner plate cannot be converted into the dining chair position 10, and the dinner plate 1 is allowed to be mounted to be converted into the dining chair position 10 only when the connecting part 8 enables the seat 2 to be connected with the supporting seat 4 when the dining chair is used.

Thus, the switching and condition limitation of the locking and unlocking mechanism 7 to the rocking chair position 9 and the dining chair position 10 of the infant dining chair are realized. Compared with the locking and unlocking mechanism 7 in the embodiment 1, 2, 3 or 4, the locking and unlocking mechanism 7 in the scheme has a simpler overall structure and higher function integration.

Referring to fig. 49 and 50, preferably, the third locking portion 124 includes a third movable member 125 and a fourth movable member 127, the third movable member 125 and the fourth movable member 127 are in driving engagement with each other and are movably disposed with respect to the seat 2, respectively, the third movable member 125 is configured to prevent or allow the connection of the dinner plate 1 with the seat 2, and the fourth movable member 127 is configured to lock or unlock the connection portion 8; the movable portion 128 includes a fifth movable member 129 movably disposed with respect to the seat portion 2, and the connection portion 8 can drive the fifth movable member 129 to move to release the restriction on the fourth movable member 127, thereby allowing the third movable member 125 and the fourth movable member 127 to move. Thus, when the connecting portion 8 makes the seat 2 and the supporting seat 4 form a connection, the connecting portion 8 drives the fifth movable member 129, so that the fifth movable member 129 no longer prevents the fourth movable member 127, and at this time, the third movable member 125 and the fourth movable member 127 can be moved synchronously under the action of the dinner plate 1 or under the action of external force or under the action of reset force, so that the third movable member 125 no longer prevents the dinner plate 1 and the fourth movable member 127 locks the connecting portion 8.

Still preferably, the third locking portion 124 further includes a ninth resetting portion, the movable portion 128 further includes a tenth resetting portion, the third movable member 125 and the fourth movable member 127 are slidably disposed on the seat 2 along different directions, the fifth movable member 129 is pivotally connected to the seat 2, the ninth resetting portion is configured to drive the third movable member 125 and the fourth movable member 127 to slidably reset when the dinner plate 1 is separated from the seat 2, and the tenth resetting portion is configured to rotationally reset the fifth movable member 129 when the connection portion 8 is configured to separate the seat 2 from the supporting seat 4.

Thus, when the dinner plate 1 is separated from the seat 2, the ninth resetting portion drives the third movable member 125 and the fourth movable member 127 to slide and reset, the fourth movable member 127 unlocks the connecting portion 8 to allow the seat 2 to be separated from the supporting seat 4, and when the connecting portion 8 separates the seat 2 from the supporting seat 4, the tenth resetting portion drives the fifth movable member 129 to rotate and reset to limit the third movable member 125 through the fourth movable member 127, and the third movable member 125 prevents the dinner plate 1 from being connected with the seat 2 to separate the dinner plate 1 from the seat 2, and at this time, the dinner plate is in the rocking chair position 9.

In particular, the third movable member 125 is obliquely slidably disposed on the seat 2, the fourth movable member 127 is slidably disposed on the seat 2 along a horizontal or near-horizontal direction, and the lower end of the third movable member 125 is slidably disposed on a guiding slot in the fourth movable member 127, so as to utilize the guiding slot to realize the conversion of the sliding directions of the third movable member 125 and the fourth movable member 127.

In the present embodiment, the ninth restoring portion is preferably a ninth restoring spring 130, where the ninth restoring spring 130 is disposed between the third movable member 125 and the seat 2, and the ninth restoring spring 130 provides a restoring spring force to drive the third movable member 125 to slide upwards for restoring. The tenth return portion is preferably a tenth return spring 131, where the tenth return spring 131 is disposed between the fifth movable member 129 and the seat 2, and the tenth return spring 131 provides a return elastic force to drive the fifth movable member 129 to rotate and return, so that the fifth movable member 129 limits the actions of the fourth movable member 127 and the third movable member 125.

In other embodiments, the ninth reset portion and the tenth reset portion may be other reset structures such as a torsion spring, an elastic sheet, a reset link structure, and a gravity reset weight structure, and the specific style or structure of the ninth reset portion and the tenth reset portion are not limited herein.

In particular, one end of the third movable member 125 is provided with a seventh pin 126 extending into or out of the slot 20, and the insert rod 19 can push the seventh pin 126 out of the slot 20 so that the fourth movable member 127 locks the connecting portion 8.

Thus, when the connecting portion 8 connects the seat 2 with the supporting seat 4, the connecting portion 8 drives the fifth movable member 129 to rotate to release the restriction on the fourth movable member 127, and when the insert rod 19 of the dinner plate 1 is inserted into the slot 20 of the seat 2 to form a locking arrangement, the insert rod 19 pushes the seventh latch 126 to withdraw from the slot 20, the seventh latch 126 drives the third movable member 125 to move so that the other end of the third movable member 125 drives the fourth movable member 127 to lock the connecting portion 8, specifically, the driving portion 61 of the connecting portion 8 pushes the fifth movable member 129 to rotate, and the fourth movable member 127 is inserted into the lock hole 65 of the connecting portion 8 to form a locking, and is located at the dining chair position 10.

By the above scheme, no additional switch is needed for controlling the seventh latch 126 to withdraw from the slot 20, and the overall structure of the locking and unlocking mechanism 7 is further simplified.

Referring to fig. 49 and 50, unlike embodiment 1 or 2 or 3 or 4, the infant dining chair of this embodiment further comprises a blocking portion 147, wherein the seat portion 2 and the back portion 3 are pivotally connected, the blocking portion 147 is connected to the back portion 3 and/or the seat portion 2, and the locking and unlocking mechanism 7 cooperates with the blocking portion 147 to limit the angle between the seat portion 2 and the back portion 3, wherein the adjustable maximum angle M between the seat portion 2 and the back portion 3 in the rocking chair position 9 is larger than the adjustable maximum angle N between the seat portion 2 and the back portion 3 in the dining chair position 10.

The angle between the seat 2 and the back 3 means: the angle between the line of the front end of the seat 2 and the pivot point (the pivot point between the seat 2 and the back 3) and the line of the rear end of the back 3 and the pivot point (the pivot point between the seat 2 and the back 3). When the rocking chair is positioned at the rocking chair position 9, the back 3 can be turned forwards or backwards relative to the seat 2, the minimum included angle between the seat 2 and the back 3, which can be achieved by the forward turning of the back 3, is not particularly limited, and the maximum included angle between the seat 2 and the back 3, which can be achieved by the backward turning of the back 3, is an adjustable maximum included angle M; when the back 3 is positioned at the dining chair position 10, the back 3 can also be turned forwards or backwards relative to the seat 2, the minimum included angle between the seat 2 and the back 3, which can be achieved by turning the back 3 forwards, is not particularly limited, but the maximum included angle between the seat 2 and the back 3, which can be achieved by turning the back 3 backwards, is only the adjustable maximum included angle N. In addition, can be equipped with multi-gear contained angle adjusting device between seat 2 and the back 3, multi-gear contained angle adjusting device can adjust the two contained angles of seat 2 and back 3 and make both stay in a plurality of contained angle gears to satisfy the operation requirement at different inclination. It should be noted that the innovation point of the present invention is not a specific structure of the multi-gear included angle adjusting device, and the specific structure of the multi-gear included angle adjusting device may be any known structure.

In this way, by utilizing the cooperation of the locking and unlocking mechanism 7 and the blocking part 147, when the rocking chair or the dining chair is switched, the maximum included angle between the seat part 2 and the back part 3 can be correspondingly adjusted, so that when the rocking chair is used, the back part 3 can be increased in angle relative to the seat part 2, thereby enabling the newborn baby to be more comfortable, and being more beneficial to the healthy development of the newborn baby, because the waist supporting force of the newborn baby is weak, the smaller the included angle between the seat part 2 and the back part 3 is, the stronger the waist supporting force of the newborn baby is required, the larger the included angle between the seat part 2 and the back part 3 is, the smaller the waist supporting force of the newborn baby is required, and the service age of the dining chair is 8 months to 3 years, and the service age of the chair can be changed into 0 to 3 years after the included angle between the seat part 2 and the back part 3 is increased, thereby not only increasing the service age, but also being beneficial to the body development and pacifying of the infant, and further improving the cost performance of the product.

Preferably, the blocking portion 147 is fixedly connected to the back portion 3 and rotates along with the back portion 3, when the dinner plate 1 is connected with the seat portion 2 to form a locking arrangement, the locking and unlocking mechanism 7 locks the connecting portion 8, and the locking and unlocking mechanism 7 is close to the blocking portion 147 so as to limit the continuous rotation of the blocking portion 147.

That is, when the connecting portion 8 connects the seat 2 with the supporting seat 4 and simultaneously connects the locking and unlocking mechanism 7 to allow the dinner plate 1 to be connected with the seat 2 to form a locking arrangement, and when the dinner plate 1 is connected with the seat 2 to form a locking arrangement and the locking and unlocking mechanism 7 always connects the seat 2 with the supporting seat 4, the dinner plate is located at the dining chair position 10, and at the moment, the locking and unlocking mechanism 7 can prevent the blocking portion 147 from forming the largest included angle between the back 3 and the seat 2 only to be the largest included angle (i.e. the adjustable maximum included angle N) set by the seat 2 and the back 3 when the dinner plate is located at the dining chair position 10.

That is, when the connecting portion 8 separates the seat 2 from the supporting seat 4 and the locking and unlocking mechanism 7 prevents the dinner plate 1 from being connected with the seat 2 so as to separate the dinner plate 1 from the seat 2, the locking and unlocking mechanism 7 is at the rocking chair position 9 at this time, and the locking and unlocking mechanism 7 gives up the space for the blocking portion 147 to rotate, so that the largest included angle formed by the back 3 and the seat 2 is the same as the largest included angle (the adjustable largest included angle M) set by the seat 2 and the back 3 when the locking and unlocking mechanism is at the rocking chair position 9.

In other embodiments, the blocking portion 147 may also adopt other known structures that can cooperate with the locking and unlocking mechanism 7 to limit the continued rotation of the back 3, such as: a swing rod sliding block mechanism can be formed between the blocking part 147 and the back 3, namely one end of the blocking part 147 is pivoted to the back 3, the other end of the blocking part 147 is slidingly arranged on the seat 2 along a specific track, and the locking and unlocking mechanism 7 is used for adjusting or blocking the movement track of the blocking part 147 to limit the blocking part 147 and further limit the continuous rotation of the back 3; another example is: the blocking part 147 rotates relatively on the seat part 2 and the back part 3 to form a seesaw structure, and the locking and unlocking mechanism 7 is used for adjusting or blocking the swing amplitude of the free end of the blocking part 147 to limit the blocking part 147 and further limit the continued rotation of the back part 3; another example is: the blocking portion 147 is pivoted with the seat 2, a blocking block is arranged on the blocking portion 147 and can be propped against or separated from the back portion 3, and the locking and unlocking mechanism 7 is used for adjusting or blocking the rotation range of the blocking portion 147 to limit the blocking portion 147, so that the blocking block on the blocking portion 147 is used for limiting the continuous rotation of the back portion 3. As for other implementations, the specific structure of the blocking portion 147 is not limited in this embodiment, and any specific structure of the blocking portion 147 that can cooperate with the locking and unlocking mechanism 7 to limit the continued rotation of the back portion 3 can be considered as the protection scope of the present invention.

It should be noted that, the blocking portion 147 may be used in combination with the lock unlocking mechanism 7 of the present embodiment; the blocking portion 147 may also be incorporated into embodiments 1 or 2 or 3 or 4 such that the blocking portion 147 is used in conjunction with the lock-unlock mechanism 7 of embodiments 1 or 2 or 3 or 4, as some possible examples, for example: the blocking portion 147 may be engaged with the pulling member 15 of embodiment 1 or 2 or 3; alternatively, the blocking portion 147 may be engaged with the sixth movable member 140 of embodiment 5.

In this embodiment, preferably, the blocking portion 147 is matched with the third movable member 125, specifically, when the third movable member 125 slides obliquely downward, the lower end of the third movable member 125 will be close to the blocking portion 147 to prevent the blocking portion 147 from rotating continuously, so that the back 3 cannot be adjusted downward by increasing the angle relative to the seat 2 so that the included angle cannot exceed the adjustable maximum included angle N.

Referring to fig. 49 and 50, and referring to the direction shown in fig. 49, in order to facilitate understanding of the scheme of the embodiment, the process of switching the dining chair from the dining chair position to the rocking chair position is as follows: firstly, the dinner plate 1 is detached from the seat 2, the restriction of the inserted link 19 to the seventh bolt 126 is released, the third movable piece 125 slides obliquely upwards under the action of the ninth reset spring 130 to drive the seventh bolt 126 to extend into the slotted hole 20, the lower end of the third movable piece 125 is far away from the blocking portion 147 to leave the space for the blocking portion 147 to rotate, the third movable piece 125 slides obliquely upwards and drives the fourth movable piece 127 to slide leftwards, so that the fourth movable piece 127 unlocks the connecting portion 8, then the other end of the connecting portion 8 can be pulled upwards to be separated from the seat 2, so that the swing arm 49 of the swinging portion 6 can drive the seat 2 to swing, when the connecting portion 8 is separated from the seat 2, the connecting portion 8 releases the pressing of the fifth movable piece 129, the fifth movable piece 129 rotates anticlockwise under the action of the tenth reset spring 131 to reset, the fifth movable member 129 is reset to limit the actions of the fourth movable member 127 and the third movable member 125, so that the fourth movable member 127 is locked at the left side position, the third movable member 125 is locked at the upper side position, and the seventh bolt 126 is locked at the position extending into the slotted hole 20, at the moment, the seventh bolt 126 prevents the insert rod 19 of the dinner plate 1 from being largely inserted into the slotted hole 20, so that the dinner plate 1 and the seat 2 cannot be locked, a rocking chair position is formed, a consumer can use the rocking chair, and the rocking chair can be used for soothing the child, so that the pressure of the child on the mother needs to be held in real time, the time is saved for other things, and meanwhile, the back 3 can be increased in angle relative to the seat 2, so that the primary infant is more comfortable, and the healthy development of the primary infant is more beneficial.

Similarly, the process of switching the infant dining chair from the rocking chair position to the dining chair position is as follows: the other end of the connecting part 8 is connected with the seat 2, the connecting part 8 pushes against the fifth movable part 129 to rotate clockwise to compress the tenth return spring 131, the fifth movable part 129 gives up the space for the fourth movable part 127 to slide rightwards, the locking of the fourth movable part 127, the third movable part 125 and the seventh bolt 126 is released, then the inserted rod 19 of the dinner plate 1 is inserted into the slotted hole 20 of the seat 2 to lock the dinner plate 1 and the seat 2, the inserted rod 19 pushes against the seventh bolt 126 to withdraw from the slotted hole 20, the seventh bolt 126 drives the third movable part 125 to move downwards obliquely and compress the ninth return spring 130, the third movable part 125 moves downwards obliquely and simultaneously drives the fourth movable part 127 to slide rightwards, so that the fourth movable part 127 is inserted into the locking hole 65 of the connecting part 8 to lock, a dining chair position is formed at the moment, the rocking chair position is ensured, the safety of consumers can be ensured through EU safety test, meanwhile, the lower end of the third movable part 125 pushes against the blocking part 147 to rotate continuously, and the angle of the blocking part 147 cannot be adjusted downwards more than the maximum angle N of the seat 2.

EXAMPLE 6

Referring to fig. 51 and 52, the present embodiment discloses a connection structure of a connection portion 8, which can be applied to the infant dining chair of any one of embodiments 1 to 5, so that when the connection portion 8 is unlocked, the connection portion 8 can be automatically reset to separate the seat portion 2 from the support seat 4.

As with the connecting portion 8 of embodiments 1 to 5, in this embodiment, one end of the connecting portion 8 is pivotally connected to the supporting base 4 or the supporting frame 5, the other end of the connecting portion 8 is connected to or separated from the seat portion 2, the other end of the connecting portion 8 is provided with a first groove 60, and the seat portion 2 is provided with a first protrusion 64 engaged with the first groove 60.

The point of difference from the connecting portion 8 of embodiments 1 to 5 is that, in the present embodiment, a fourteenth reset portion is further provided between the connecting portion 8 and the supporting seat 4 or the supporting frame 5, and the fourteenth reset portion is used for driving the connecting portion 8 to be movably reset so that the first groove 60 of the connecting portion 8 is separated from the first protruding portion 64 of the seat 2. In addition, in order to avoid affecting the automatic resetting of the connection portion 8, it will be appreciated that the connection portion 8 will not be provided with a catch 59 as in embodiment 1.

Referring to fig. 51 and 52, taking the application of the connection structure of the connection portion 8 to the infant dining chair of embodiment 6 and taking the pivoting of one end of the connection portion 8 and the supporting seat 4 as an example, specifically, the supporting seat 4 further includes a bearing seat 150, the bearing seat 150 is mounted on the upper surface of the mounting box 51 in a protruding manner, the connection portion 8 is pivoted on the bearing seat 150, the fourteenth return portion is preferably a fourteenth return spring 146, the fourteenth return spring 146 is connected between the connection portion 8 and the bearing seat 150, and when the fourth movable member 127 exits the locking hole 65 of the connection portion 8, the fourteenth return spring 146 drives the connection portion 8 to rotate by elasticity so that the first groove 60 is separated from the first protrusion 64 of the seat 2 upwards.

In this way, when unlocking the connection portion 8, it is achieved by the fourteenth return spring 146 that the connection portion 8 can be automatically reset to separate the seat portion 2 from the support seat 4.

In other embodiments, the fourteenth reset portion may also be a torsion spring, a spring plate, a reset link structure, a gravity reset weight structure, or other structures capable of playing a reset role, and the specific style or structure of the fourteenth reset portion is not limited herein.

Similarly, when applied to embodiment 1, when the first lock pin assembly 27 is withdrawn from the lock hole 65 of the connecting portion 8, the fourteenth return spring 146 elastically drives the connecting portion 8 to rotate so that the first recess 60 is upwardly disengaged from the first projection 64 of the seat 2; when the first locking piece 117 is withdrawn from the locking hole 65 of the connecting portion 8 as applied to embodiment 3 or 4, the fourteenth return spring 146 elastically drives the connecting portion 8 to rotate so that the first groove 60 is upwardly separated from the first protrusion 64 of the seat portion 2; when the sixth movable member 140 is withdrawn from the locking hole 65 of the connection portion 8, the fourteenth return spring 146 elastically drives the connection portion 8 to rotate such that the first recess 60 is upwardly separated from the first protrusion 64 of the seat portion 2, as applied to embodiment 5.

Example 8

Referring to fig. 53, the present embodiment discloses a connection structure of a connection portion 8, which can be applied to the infant dining chair of any one of embodiments 1 to 5, and can also connect or disconnect the seat portion 2 with or from the supporting seat 4.

The point of difference from the connection portion 8 of embodiments 1 and 6 is that in the present embodiment, the connection portion 8 includes a first connection post 148 and a second connection post 149, the first end of the first connection post 148 is connected to the seat portion 2, the first end of the second connection post 149 is connected to the support seat 4 or the support frame 5, the second end of the first connection post 148 is detachably connected to the second end of the second connection post 149, specifically, the second end of the first connection post 148 is connected to the second end of the second connection post 149 such that the seat portion 2 is connected to the support seat 4, and the second end of the first connection post 148 is separated from the second end of the second connection post 149 such that the seat portion 2 is separated from the support seat 4.

It should be noted that, the detachable connection manner between the second end of the first connecting post 148 and the second end of the second connecting post 149 may be any manner, such as a rotational fastening connection, a plugging connection, etc., and the detachable connection manner is not limited in this embodiment.

Referring to fig. 53, in the present embodiment, taking a rotary snap connection as an example, a first end of the first connecting post 148 is pivotally connected to the seat 2, a first end of the second connecting post 149 is pivotally connected to the support seat 4 or the support frame 5, and a second end of the first connecting post 148 is detachably snap-connected to a second end of the second connecting post 149. However, as in embodiment 7, the supporting base 4 also includes a bearing base 150, where the bearing base 150 is mounted on the upper surface of the mounting box 51 in a protruding manner, except that the second connecting post 149 is pivotally connected to the bearing base 150, and when the second end of the first connecting post 148 is engaged with the second end of the second connecting post 149, the bearing base 150 can prevent the second end of the second connecting post 149 from rotating away from the second end of the first connecting post 148 so as not to be unlocked.

In addition, a locking hole 65 may be provided on the first end of the first connection post as well. In particular application, the first locking pin assembly 27 of embodiment 1 can be inserted into the locking hole 65 of the first connecting column to form a lock, the first locking member 117 of embodiment 3 or 4 can be inserted into the locking hole 65 of the first connecting column to form a lock, the sixth movable member 140 of embodiment 5 can be inserted into the locking hole 65 of the first connecting column to form a lock, and the fourth movable member 127 of embodiment 6 can be inserted into the locking hole 65 of the first connecting column to form a lock.

The invention provides a rocking chair which can be used as a rocking chair and a dining chair, and the included angle between the seat and the back of the rocking chair can pass through European test requirements and safety standards, the included angle between the seat and the back of the rocking chair is not required to be manually switched to meet the European test requirements and the safety standards, the rocking chair is stable in structure, the vision of a clamping hand can be caused by the absence of the seat and a supporting frame to meet the demands of more consumers, the rocking chair is invented by engineers through long-term careful study, is not easy to think of people in the field, and does not belong to common general knowledge of the public.

Although the invention has been described hereinabove with reference to embodiments, various modifications may be made thereto and the invention may be practiced in equivalent or other ways that are well known to those of skill in the art without departing from the scope of the invention. In particular, the features of the disclosed embodiments may be combined with each other in any manner so long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of brevity and resource saving. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims. The fixed arrangement referred to in the present invention can be understood as: detachably fixed connection (e.g. using bolts or screws or snap connections) can also be understood as: the first, second and third embodiments of the present invention are merely names for describing things, and have no specific meaning.

Claims

1. The utility model provides an infant dining chair, includes dinner plate, seat, back, support frame, seat and back pin joint, the seat includes base, its characterized in that: still include the supporting seat, still include swing portion, swing portion and base connection, swing portion sets up on the supporting seat, swing portion can make the seat support seat parallel oscillation or be close parallel oscillation relatively, the support frame includes first support frame and second support frame, still includes slide mechanism, slide mechanism can make the second support frame slide about for first support frame, first support frame supports on the holding surface, the second support frame is being supported from the lower extreme to first support frame, the second support frame is fixed with the supporting seat and is set up.

2. A dining chair for infants as claimed in claim 1, wherein: the highest point of the fixing point of the second support frame and the support seat is lower than the lowest point of the base.

3. A dining chair for infants as claimed in claim 1, wherein: a third connecting piece is arranged between the swinging part and the base, and the base is connected with the swinging part through the third connecting piece.

4. A dining chair for infants as claimed in claim 3, wherein: the third connecting piece is U-shaped, and a matching part matched with the third connecting piece is transversely arranged on the base.

5. A dining chair for infants as claimed in claim 1, wherein: the folding mechanism is arranged on the first supporting frame, the first supporting frame comprises a first supporting piece and a second supporting piece, and the folding mechanism can enable the first supporting piece to be folded relative to the second supporting piece.

6. The infant dining chair of claim 5, wherein: the upper end of the first supporting piece is provided with an extension part, and the folding mechanism is arranged between the extension part and the second supporting piece.

7. The infant dining chair of claim 6, wherein: the folding mechanism comprises a first switch, a first lock part connected with the extension part and a second lock part connected with the second support part, wherein the first lock part is pivoted with the second lock part, a movable fourth bolt is arranged on the second lock part, a fourth reset part for driving the fourth bolt to reset and a recess part for limiting are arranged on the second lock part, the first switch is movably arranged on the first lock part, a fourth jack matched with the fourth bolt in a locking manner and a fourth protruding part movably matched with the recess part are arranged on the first lock part, a second protruding part matched with the fourth bolt is arranged on the first switch, and the first switch drives the fourth bolt to withdraw from the fourth jack to unlock the first lock part when being pressed.

8. The infant dining chair of claim 7, wherein: the second lock part comprises a middle part and a fifth connecting piece, the middle part is fixedly connected to one side, facing the first lock part, of the fifth connecting piece, the concave part is arranged on the middle part, a first sliding hole corresponding to a fourth bolt is formed in the middle part, the fourth bolt can slide in the first sliding hole and is limited by the first sliding hole and cannot be separated from the middle part, and the fourth reset part is a fourth reset spring arranged between the fourth bolt and the fifth connecting piece.

9. The infant dining chair of claim 6, wherein: the first support piece comprises a first plastic piece and a first metal piece arranged in the first plastic piece, the extension part and the first plastic piece are integrally formed, and the second support frame comprises a second plastic piece and a second metal piece arranged in the second plastic piece.

10. A dining chair for infants as claimed in claim 1, wherein: the first support frame is arranged at an inclination angle and forms an acute angle with the second support frame.

11. A dining chair for infants as claimed in claim 1, wherein: the sliding mechanism comprises a sliding switch, a first pull rope and a locking and unlocking part, wherein the sliding switch is arranged on a supporting seat or a second supporting frame, one end of the first pull rope is connected with the sliding switch, the other end of the first pull rope is connected with the locking and unlocking part, and the locking and unlocking part is arranged between the first supporting frame and the second supporting frame.

12. An infant dining chair according to claim 11, wherein: the locking unlocking part comprises a third jack arranged on the first support frame, a third bolt arranged on the second support frame, a first driving piece connected with the third bolt, and a third reset spring, wherein the first driving piece is connected with the other end of the first stay cord.

13. A dining chair for infants according to any one of claims 1 to 12, wherein: the novel dining chair further comprises a locking and unlocking mechanism, a connecting part, a rocking chair position and a dining chair position, wherein the connecting part enables the seat part to be separated from the supporting seat, and the locking and unlocking mechanism prevents the dining plate from being connected with the seat part so that the dining plate is separated from the seat part when the dining plate is positioned at the rocking chair position, and the rocking part can drive the seat part to swing; the connecting part enables the seat part to be connected with the supporting seat, and simultaneously enables the locking and unlocking mechanism to allow the dinner plate to be connected with the seat part to form locking arrangement, and the dinner plate is connected with the seat part to form locking arrangement, and the locking and unlocking mechanism always enables the seat part to be connected with the supporting seat when being positioned at the dining chair position; the locking and unlocking mechanism allows the seat to be separated from the support seat when the dinner plate is separated from the seat.

14. An infant dining chair according to claim 13, wherein: the locking and unlocking mechanism comprises a first locking part and a second locking part, wherein the first locking part is used for preventing the dinner plate from being connected with the seat when the connecting part enables the seat to be separated from the supporting seat, so that the dinner plate is separated from the seat, the second locking part is used for allowing the dinner plate to be connected with the seat to form a locking arrangement when the connecting part enables the seat to be connected with the supporting seat, the second locking part is also used for enabling the seat to be always connected with the supporting seat when the dinner plate is connected with the seat to form a locking arrangement, the second locking part is also used for allowing the seat to be separated from the supporting seat when the dinner plate is separated from the seat, the seat further comprises an armrest seat, and the locking and unlocking mechanism is arranged in the armrest seat.

15. An infant dining chair according to claim 14, wherein: the first locking part comprises a first locking component and a first connecting piece, the first locking component is connected with one end of the first connecting piece, the first locking part further comprises a pulling piece, the pulling piece is connected with the other end of the first connecting piece, the second locking part comprises a second locking component and a second connecting piece, the second locking component is connected with one end of the second connecting piece, the second locking part further comprises a third locking component, and the third locking component is connected with the other end of the second connecting piece.

16. An infant dining chair according to claim 15, wherein: the dinner plate is provided with a plug rod, the seat is provided with a slotted hole for the plug rod to insert, the first locking component comprises a first bolt used for preventing the plug rod, and the first bolt can extend into or withdraw from the slotted hole.

17. An infant dining chair according to claim 16, wherein: the dinner plate is characterized in that a second lock pin assembly used for locking the seat is arranged on the inserted link, a second pull rope and a second switch are further arranged on the dinner plate, one end of the second pull rope is connected with the second switch, and the other end of the second pull rope is connected with the second lock pin assembly.

18. An infant dining chair according to claim 17, wherein: the second lock pin assembly comprises a fifth bolt, a second driving piece and a fifth reset part, wherein the fifth bolt is arranged on the inserting rod in a sliding mode and can penetrate out of the inserting rod, the second driving piece is arranged in the inserting rod in a sliding mode, the other end of the second pull rope is connected with the second driving piece, the fifth reset part is arranged between the second driving piece and the inserting rod, a first chute is arranged on the second driving piece, and a third protruding part matched with the first chute is arranged on the fifth bolt.

19. An infant dining chair according to claim 15, wherein: the second locking component comprises a second bolt, the second bolt can extend into or withdraw from the slotted hole, and when the inserting rod is inserted into the slotted hole, the inserting rod can drive the second bolt to withdraw from the slotted hole, and the second connecting piece can drive the third locking component to be locked with the connecting part.

20. An infant dining chair according to claim 15, wherein: one end of connecting portion and supporting seat or support frame pin joint, the other end and the seat of connecting portion are connected or are separated, be equipped with first recess on the other end of connecting portion, be equipped with on the seat with first recess complex first bulge, the other end of connecting portion still is provided with the lockhole that is used for with the locking of third locking component, still be provided with on the other end of connecting portion and be used for forming the buckle of block with first bulge, still be provided with the drive division that is used for driving the pulling piece on the other end of connecting portion.

21. An infant dining chair according to claim 20, wherein: the first locking assembly is pivotally arranged with the seat, the second locking assembly is pivotally arranged with the seat, and the pulling member is pivotally arranged with the seat.

22. An infant dining chair according to claim 21, wherein: the third locking assembly comprises a rotating rod and a first locking pin assembly, the rotating rod is pivoted with the seat, one end of the rotating rod is connected with the second connecting piece, the other end of the rotating rod is pivoted with the first locking pin assembly, and the first locking pin assembly is used for locking or unlocking with the connecting portion.

23. An infant dining chair according to claim 22, wherein: still include first reset spring, first reset spring sets up between first locking subassembly and seat still includes the second reset spring, the second reset spring sets up between first locking pin subassembly and seat.

24. An infant dining chair according to claim 15, wherein: the third locking assembly comprises an eighth resetting part and a first locking piece for locking or unlocking the connecting part, the first locking piece is movably arranged relative to the seat and is connected with the other end of the second connecting piece, and the eighth resetting part can drive the first locking piece to move towards the connecting part for resetting so as to lock the connecting part.

25. An infant dining chair according to claim 24, wherein: the first locking piece is arranged on the seat part in a sliding manner along the direction facing to or away from the connecting part, the eighth reset part comprises an eighth reset spring, and the eighth reset spring is arranged between the first locking piece and the seat part and drives the first locking piece to slide towards the connecting part by elasticity.

26. An infant dining chair according to claim 24, wherein: the dinner plate is provided with an inserting rod, the seat is provided with a slotted hole for inserting the inserting rod, the second locking assembly comprises a first switch part and a first movable part, a limiting part which is used for being matched with the inserting rod is arranged on the first movable part, the first movable part is movably arranged relative to the seat and is connected with one end of the second connecting part, and the first switch part is connected with the seat and is in transmission fit with the first movable part.

27. An infant dining chair according to claim 26, wherein: the limiting part comprises a sixth bolt which is used for extending into or exiting from the slotted hole, the first movable part is slidably arranged on the seat part along a first direction, the first switch part is slidably arranged on the seat part along a second direction, the first direction and the second direction form an included angle, and a second chute which is slidably matched with the first switch part is arranged on the first movable part.

28. An infant dining chair according to claim 26, wherein: the limiting part comprises a hook used for hooking the inserted link, the first movable part is pivoted to the seat, the first switch part is slidably arranged on the seat, a third chute which is slidably matched with the first switch part is arranged on the first movable part, one end of the second connecting part is connected to one end of the first movable part, and the hook is arranged at the other end of the first movable part.

29. An infant dining chair according to claim 13, wherein: the locking and unlocking mechanism comprises a third locking part and a movable part, the movable part is respectively matched with the third locking part and the connecting part, and the third locking part is respectively matched with the dinner plate and the connecting part; the movable part is used for releasing the limit of the third locking part when the connecting part enables the seat part to be connected with the supporting seat, so that the third locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; the third locking part is used for locking the connecting part when the dinner plate is connected with the seat part to form a locking arrangement, so that the seat part is always connected with the supporting seat; the third locking part is also used for unlocking the connecting part when the dinner plate is separated from the seat part, so that the seat part is allowed to be separated from the supporting seat; the movable part is also used for limiting the third locking part when the connecting part enables the seat part to be separated from the supporting seat, so that the third locking part prevents the dinner plate from being connected with the seat part, and the dinner plate is separated from the seat part.

30. An infant dining chair according to claim 29, wherein: the third locking part comprises a third movable part and a fourth movable part, the third movable part and the fourth movable part are mutually matched in a transmission way and are respectively movably arranged relative to the seat part, the third movable part is used for preventing or allowing the dinner plate to be connected with the seat part, and the fourth movable part is used for locking or unlocking the connecting part; the movable part comprises a fifth movable part which is movably arranged relative to the seat part, and the connecting part can drive the fifth movable part to move so as to release the limit on the fourth movable part, thereby allowing the third movable part and the fourth movable part to move.

31. An infant dining chair according to claim 30, wherein: the third locking part further comprises a ninth resetting part, the movable part further comprises a tenth resetting part, the third movable part and the fourth movable part are respectively arranged on the seat in a sliding mode along different directions, the fifth movable part is pivoted to the seat, the ninth resetting part is used for driving the third movable part and the fourth movable part to slide and reset when the dinner plate is separated from the seat, and the tenth resetting part is used for enabling the fifth movable part to rotate and reset when the connecting part enables the seat to be separated from the supporting seat.

32. An infant dining chair according to claim 31, wherein: the dinner plate is provided with a plug rod, the seat is provided with a slot hole for the plug rod to insert, one end of the third movable piece is provided with a seventh plug pin extending into or exiting from the slot hole, and the plug rod can push the seventh plug pin to exit from the slot hole so that the fourth movable piece locks the connecting part.

33. An infant dining chair according to claim 13, wherein: the locking and unlocking mechanism comprises a fourth locking part, a fifth locking part, a first locking part and a second switching part, wherein the fourth locking part and the fifth locking part are in linkage connection through the first locking part, the second switching part is connected with the seat part and is in transmission fit with the fourth locking part, the fourth locking part is used for being matched with a dinner plate, and the fifth locking part is used for being matched with the connecting part; when the connecting part enables the seat part to be connected with the supporting seat, the fifth locking part can lock the connecting part, and the fifth locking part drives the fourth locking part to act through the first locking part, so that the fourth locking part allows the dinner plate to be connected with the seat part to form a locking arrangement; when the dinner plate is connected with the seat part to form a locking arrangement, the dinner plate limits the fourth locking part, so that the fifth locking part keeps locking the connecting part; when the dinner plate is separated from the seat part, the second switch part can drive the fourth locking part to act, and the fourth locking part drives the fifth locking part to unlock the connecting part through the first locking part, so that the seat part is allowed to be separated from the supporting seat.

34. An infant dining chair according to claim 33, wherein: the dinner plate is provided with a plugboard, the seat is provided with a slotted hole for the plugboard to be inserted, the fourth locking part comprises a second movable part and an eleventh resetting part for driving the second movable part to reset, the second movable part is provided with an eighth bolt extending into or exiting from the slotted hole, the second movable part is movably arranged relative to the seat and is connected with one end of the first locking part, the second switch part is in transmission fit with the second movable part, and the plugboard and the eighth bolt can be mutually limited.

35. An infant dining chair according to claim 34, wherein: the second movable piece is pivoted to the seat part, the second switch part is slidably arranged on the seat part, and a fourth chute which is slidably matched with the second switch part is arranged on the second movable piece.

36. An infant dining chair according to claim 34, wherein: the fifth locking part comprises a sixth moving part, a seventh moving part, a second locking part, a twelfth resetting part and a thirteenth resetting part, wherein the sixth moving part, the seventh moving part and the second locking part are respectively and movably arranged relative to the seat, the sixth moving part is connected with the other end of the first locking part, the sixth moving part is used for locking or unlocking the connecting part, the second locking part is used for locking the sixth moving part at the position of the unlocking connecting part, the seventh moving part is used for driving the second locking part to act so as to lock or unlock the sixth moving part, the twelfth resetting part is used for driving the sixth moving part to reset, and the thirteenth resetting part is used for driving the seventh moving part to reset.

37. An infant dining chair according to claim 36, wherein: the sixth moving part and the seventh moving part are respectively and slidably arranged on the seat, the sixth moving part is positioned above the seventh moving part, a locking groove matched with the second locking part is formed in the sixth moving part, the second locking part is vertically and slidably arranged on the seat, the second locking part is also obliquely and slidably arranged on the seventh moving part, and the second locking part is upwardly inserted into or downwardly withdrawn from the locking groove along with the sliding of the seventh moving part.

38. An infant dining chair according to claim 20, wherein: a fourteenth reset part is further arranged between the connecting part and the supporting seat or the supporting frame and is used for driving the connecting part to movably reset so that the first groove of the connecting part is separated from the first protruding part of the seat.

39. An infant dining chair according to claim 13, wherein: the connecting portion comprises a first connecting column and a second connecting column, wherein the first end of the first connecting column is connected with the seat, the first end of the second connecting column is connected with the supporting seat or the supporting frame, the seat is connected with the supporting seat when the second end of the first connecting column is connected with the second end of the second connecting column, and the seat is separated from the supporting seat when the second end of the first connecting column is separated from the second end of the second connecting column.

40. An infant dining chair according to claim 39, wherein: the first end of the first connecting column is pivoted with the seat part, the first end of the second connecting column is pivoted with the supporting seat or the supporting frame, and the second end of the first connecting column is detachably buckled with the second end of the second connecting column.

41. An infant dining chair according to claim 13, wherein: the rocking chair is characterized by further comprising a blocking part, the seat part is pivotally connected with the back part and/or the seat part, the blocking part is connected with the back part and/or the seat part, and the locking and unlocking mechanism is matched with the blocking part to limit the included angle between the seat part and the back part, wherein the adjustable maximum included angle M between the seat part and the back part when the rocking chair is positioned is larger than the adjustable maximum included angle N between the seat part and the back part when the rocking chair is positioned.

42. The infant dining chair according to claim 41, wherein: the blocking part is fixedly connected to the back and rotates along with the back, when the dinner plate is connected with the seat part to form a locking arrangement, the locking and unlocking mechanism locks the connecting part, and the locking and unlocking mechanism is close to the blocking part so as to limit the continuous rotation of the blocking part.

43. An infant dining chair according to claim 13, wherein: the supporting seat comprises a mounting seat, a mounting box, two fixed connecting seats and a bearing piece, wherein the two fixed connecting seats are relatively arranged on the second supporting frame at intervals, two ends of the bearing piece are bent towards the base and are respectively connected with the two fixed connecting seats, the mounting seat and the bearing piece are fixedly arranged, the swinging part is arranged on the mounting seat, and at least one part of the swinging part, at least one part of the fixed connecting seats, the mounting seat and the bearing piece are arranged in the mounting box.

44. The infant dining chair of claim 43, wherein: the fixed connection seat is provided with a second groove for the connection part to be inlaid in, and the mounting box is provided with an avoidance hole for avoiding the connection part.

45. The infant dining chair of claim 43, wherein: the bearing parts are arranged in a spacing mode.

46. The infant dining chair of claim 43, wherein: the fixed connection seat is provided with a plug hole, and the end part of the bearing piece is inserted into the plug hole and fixed through a screw.

47. An infant dining chair according to claim 46, wherein: the fixed connecting seat is provided with an inserting part which is inserted into the second supporting frame and fixed by a screw.

48. A dining chair for infants as claimed in claim 3, wherein: the swinging part comprises a first rotating shaft and a second rotating shaft, the supporting seat comprises an installation seat, one ends of the first rotating shaft and the second rotating shaft are pivoted with the installation seat, and the other ends of the first rotating shaft and the second rotating shaft are pivoted with the third connecting piece.

49. An infant dining chair according to claim 13, wherein: the swing portion includes seat axis of rotation, drive shaft, swing arm, spacing groove, the supporting seat includes mount pad, mounting box, mount pad, swing arm, spacing groove, drive shaft are installed in the mounting box, seat axis of rotation and swing arm pivot, the one end and the seat of seat axis of rotation are connected, the other end of seat axis of rotation is provided with the rotating member, the rotating member cooperates with the spacing groove, the one end and the swing arm pivot of drive shaft, the other end and the mount pad pivot of drive shaft.

50. The infant dining chair according to claim 49, wherein: the mounting box is provided with a second groove into which the connecting part is embedded.

51. The infant dining chair according to claim 49, wherein: the second support frame integrated into one piece parcel is outside the installation box.

52. The infant dining chair according to claim 49, wherein: the electric drive mechanism is characterized by further comprising an electric part, wherein the driving shaft is obliquely arranged, the other end of the driving shaft is connected with the electric part, and the electric part can enable the driving shaft to rotate.

53. The infant dining chair according to claim 49, wherein: the supporting seat comprises a fixing piece, the installation seat is fixedly arranged on the fixing piece, and the fixing piece is fixedly arranged with the second supporting frame.

54. The infant dining chair according to claim 49, wherein: the limiting groove is movably arranged relative to the mounting seat, and the device further comprises a swing mode adjusting mechanism for adjusting the position of the limiting groove, wherein the swing mode adjusting mechanism is arranged between the limiting groove and the mounting box, or the swing mode adjusting mechanism is arranged between the limiting groove and the mounting seat.

55. The infant dining chair according to claim 54, wherein: the swing mode adjusting mechanism comprises a mode adjusting switch, a lock pin piece, a sliding seat, a third driving piece and a shifting block, wherein the sliding seat is fixedly arranged in a limit groove, the lock pin piece and the third driving piece are both arranged on the sliding seat in a sliding manner, the shifting block is pivoted on the sliding seat, one end of the shifting block is connected with the third driving piece, the other end of the shifting block is connected with the lock pin piece, the mode adjusting switch is connected with the third driving piece, a first engagement portion is arranged on the lock pin piece, a second engagement portion matched with the first engagement portion is arranged on the mounting box or the mounting seat, and a plurality of engagement positions are arranged between the first engagement portion and the second engagement portion so as to correspondingly adjust the limit groove to be in different positions.

56. The infant dining chair according to claim 55, wherein: a sixth reset part is arranged between the lock pin piece and the sliding seat.

57. The infant dining chair according to claim 55, wherein: the mode adjusting switch is movably connected with the third driving piece, and a seventh reset part is further arranged between the mode adjusting switch and the third driving piece.