CN117922398A

CN117922398A - Child safety seat with built-in reclining function

Info

Publication number: CN117922398A
Application number: CN202410332618.1A
Authority: CN
Inventors: 林力自
Original assignee: Ningbo Bolenn Manufacturing Co ltd
Current assignee: Ningbo Bolenn Manufacturing Co ltd
Priority date: 2024-03-22
Filing date: 2024-03-22
Publication date: 2024-04-26
Anticipated expiration: 2044-03-22
Also published as: CN117922398B

Abstract

The invention discloses a child safety seat with a built-in reclining function, which comprises a seat body and a sitting posture adjusting pad movably arranged on the seat body, wherein the seat body is provided with a track groove for the sitting posture adjusting pad to slide between a first position and a second position relative to the seat body; when the sitting posture adjusting pad is positioned at the first position, the sitting posture adjusting pad is attached to the chair body; when the sitting posture adjusting pad slides from the first position to the second position of the chair body, at least part of the sitting posture adjusting pad is not attached to the chair body, so that the sitting posture adjusting pad is deformed into a form in which a child can lie in the chair body in a leaning way. The seat cushion has the advantages that the structural design is ingenious, the locking pin can be switched between the first gear locking hole and the second gear locking hole only by one hand, namely, the position of the seat cushion relative to the seat body is adjusted, so that the seat cushion is convenient for children to switch between the sitting posture and the sleeping posture in the seat body, and the children can sit more comfortably.

Description

Child safety seat with built-in reclining function

Technical Field

The invention relates to the technical field of child safety seats, in particular to a child safety seat with a built-in reclining function.

Background

The automobile child safety seat is also called a child restraint system CRS, is specially designed for children of different ages or weights, is installed in an automobile, and can effectively improve riding safety of the children. In the event of a collision or sudden deceleration of the vehicle, the impact force on the child is slowed down and the body movement of the child is restricted to reduce injury to the child and ensure the riding safety of the child. When the child is small or falls asleep, the child needs to be seated in the recumbent child safety seat, so that the safety of riding the child is improved, and the child is more comfortable to ride.

In the prior art, a child safety seat includes a base and a seat body, and a comfortable and safe riding environment is provided for a child by adjusting an inclination angle of the seat body relative to the base. The utility model discloses a child safety seat back angle adjusting device for a vehicle, which comprises a seat back (namely a seat body), a base, a sliding plate and a handle, wherein a through hole is formed in the base, grooves are formed in two sides of the through hole, the sliding plate is movably arranged in the through hole in the front and back and is partially exposed below the base, a shoulder extends out of the sliding plate in opposite directions below the base, the seat back is arranged above the sliding plate, an elastic component is arranged in the upper part of the sliding plate, two sides of the elastic component are respectively sleeved on the sliding plate, a left sliding block and a right sliding block are sleeved in the grooves, a left sliding block pin and a right sliding block pin are respectively arranged on the left sliding block and the right sliding block, the left sliding block pin and the right sliding block pin are sleeved in the handle through the through holes formed in the handle, one end of the handle, provided with the through holes, is connected with the sliding plate through the elastic component, and the through holes formed in the handle are arranged in a conical shape. The chair back is reliable in combination relative to the base, is not easy to shake, can be used for adjusting the chair back of the child safety seat for the vehicle by one hand, and is convenient to operate.

However, the above-mentioned prior art discloses a child safety seat back angle adjusting device for a vehicle, which adjusts the inclination angle of the back (i.e. the seat body) relative to the base, so that the child sitting in the seat body always maintains a sitting posture, but cannot adjust to a lying posture, and thus the riding comfort of the child cannot be well satisfied.

There is a need for improvements over the prior art.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the invention provides the child safety seat with the built-in reclining function, which has ingenious structural design, and can realize the switching of the locking pin between the first gear locking hole and the second gear locking hole through one-hand operation, namely one pushing and one pulling, namely the position of the sitting posture adjusting pad relative to the seat body is adjusted, so that the operation is convenient, the switching between sitting posture and sleeping posture of a child in the seat is facilitated, and the child sitting is more comfortable.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

The child safety seat with the built-in reclining function comprises a seat body and a sitting posture adjusting pad movably arranged on the seat body, wherein the seat body is provided with a track groove for the sitting posture adjusting pad to slide between a first position and a second position relative to the seat body; the seat body comprises a seat and a chair back, the sitting posture adjusting pad comprises a seat cushion matched with the seat and a back pad matched with the chair back, and the bottom of the back pad is hinged with the rear end of the seat cushion; the track grooves comprise transverse track grooves arranged on the chair seat and vertical track grooves arranged on the chair back; the cushion is in sliding fit with the transverse track groove, and the top of the back cushion is in sliding fit with the vertical track groove; when the sitting posture adjusting pad is positioned at the first position, the seat cushion is positioned at the rear end of the transverse track groove, the top of the back cushion is positioned at the top end of the vertical track groove, and the sitting posture adjusting pad is attached to the chair body at the moment; when the sitting posture adjusting pad slides to the second position from the first position of the chair body, the cushion slides forwards to the front end of the transverse track groove relative to the seat, the bottom of the back pad slides forwards along with the cushion, the top of the back pad slides downwards to the lower end of the vertical track groove relative to the chair back, at least part of the sitting posture adjusting pad is not attached to the chair body, and therefore the sitting posture adjusting pad is deformed into a form in which a child can lie in the chair body in a leaning way.

Further, the seat cushion comprises a plurality of seat cushion units, the seat cushion units are sequentially arranged on the seat base from front to back, two adjacent seat cushion units are hinged, and the bottom of the back cushion is hinged with the rear end of the seat cushion unit positioned at the rearmost side; the hinging positions of the two adjacent cushion units and the hinging positions of the back cushion and the corresponding cushion units are respectively provided with a connecting rod; at least part of the connecting rod is in sliding connection with the transverse track groove.

Further, the cushion includes first cushion unit and second cushion unit, the bottom of back cushion is articulated with the rear end of first cushion unit, the front end of first cushion unit is articulated with the rear end of second cushion unit, the front end of second cushion unit is provided with first slide bar, horizontal track groove includes the horizontal track groove A with first slide bar sliding connection complex, the top of back cushion is provided with the second slide bar with vertical track groove sliding connection complex.

Further, the connecting rod comprises a first connecting rod arranged at the joint of the back cushion and the first cushion unit and a second connecting rod arranged at the joint of the first cushion unit and the second cushion unit; the transverse track groove also comprises a transverse track groove B in sliding connection with the first connecting rod and a transverse track groove C in sliding connection with the second connecting rod.

Further, the bottom of the back cushion is provided with an arc-shaped part extending towards the direction of the seat, and the back cushion is hinged with the rear end of the cushion through the arc-shaped part.

Further, a locking mechanism is arranged between the chair body and the sitting posture adjusting pad in a matched mode, and the locking mechanism is used for enabling the sitting posture adjusting pad to be locked at a first position or a second position relative to the chair body.

Further, the locking mechanism comprises a sliding plate, a locking pin matched with the sliding plate in a sliding way and a gear locking hole arranged on the side portion of the chair seat, the sliding plate is in sliding connection with the seat cushion, a reset spring is propped between the sliding plate and the seat cushion, and the reset spring acts on the sliding plate to enable the locking pin to always have a trend of being inserted into the gear locking hole.

Further, the sliding plate is provided with a straight sliding groove, the straight sliding groove extends from the rear end of the sliding plate to the front end, an inclined sliding groove which is arranged in an eight shape is further formed in the sliding plate, one end of the locking pin is inserted into a gear locking hole of the chair seat, the other end of the locking pin is provided with a pull rod perpendicular to the pull rod, the pull rod stretches into the inclined sliding groove, and when the sliding plate slides, the sliding plate drives the locking pin to move along the inclined sliding groove through the inclined sliding groove, so that the locking pin is inserted into the gear locking hole or pulled out of the gear locking hole.

Further, the gear locking hole comprises a first gear locking hole and a second gear locking hole, and when the locking pin is in plug-in fit with the first gear locking hole, the sitting posture adjusting pad is positioned at the first position of the chair body; when the locking pin is in plug-in fit with the second gear locking hole, the sitting posture adjusting pad is located at a second position of the chair body.

Further, the front end of sliding plate is provided with first handle, first handle is through the spliced pole and the sliding plate fixed connection of wearing to locate the cushion, the cushion is provided with and connects complex kidney slot with the spliced pole slip, the cushion is fixed to be provided with the second handle that sets up relatively with first handle.

After the structure is adopted, the invention has the beneficial effects that:

(1) The invention relates to a child safety seat with a built-in reclining function, which comprises a seat body and a sitting posture adjusting pad movably arranged on the seat body, wherein the seat body is provided with a track groove for the sitting posture adjusting pad to slide between a first position and a second position relative to the seat body; when the sitting posture adjusting pad is positioned at the first position, the sitting posture adjusting pad is attached to the chair body; when the sitting posture adjusting pad slides from the first position to the second position of the chair body, at least part of the sitting posture adjusting pad is not attached to the chair body, so that the sitting posture adjusting pad is deformed into a form in which a child can lie in the chair body in a leaning way. The novel chair has the advantages that the structural design is ingenious, the front end of the first handle is pressed by the thumb of one hand, the second handle is pulled by the other four fingers, then the fist is made, the second handle is pushed or pulled in a homeopathic manner, the locking pin can be switched between the first gear locking hole and the second gear locking hole, and the position of the sitting posture adjusting pad relative to the chair body is adjusted. When the locking pin is switched from the first gear locking hole to be matched with the second gear locking hole, namely, when the sitting posture adjusting pad is adjusted to a second position from a first position relative to the chair body, the seat cushion slides forwards relative to the chair seat, the bottom of the back pad slides forwards along with the seat cushion, and the top of the back pad slides downwards along the second track groove. The design of this structure makes the position of sitting position adjustment pad be located the first position or the second position of chair body when, and back pad and cushion all link up in the same direction as smooth, can not form the step, make things convenient for children to keep position of sitting or sleeping appearance in best state in the seat, make children take more comfortablely, and need not to hold children up in the adjustment process. And no matter when the sitting posture adjusting pad is positioned at the first position or the second position of the chair body, the cushion is always attached to the chair seat, so that the sitting posture adjusting pad is more stable, better supporting force can be provided for children, and the riding comfort of the children is further improved.

(2) The invention relates to a child safety seat with a built-in reclining function, wherein a seat body comprises a seat and a seat back, a sitting posture adjusting pad comprises a seat cushion corresponding to the seat and a back pad corresponding to the seat back, the seat cushion comprises a plurality of seat cushion units, the seat cushion units are sequentially arranged on the seat from front to back, two adjacent seat cushion units are hinged through a connecting rod, and the whole seat cushion can be more attached to the seat through a hinged connection mode. The chair seat is provided with a transverse track groove, and at least part of the connecting rod is matched with the transverse track groove in a sliding way. At least part of the connecting rod is matched with the transverse track groove in a sliding way, so that the cushion slides along the direction of the transverse track groove, the cushion is further attached to the seat to slide, the seat always provides supporting force for the cushion, the cushion is firmer, and children sit more comfortably. The front end of second cushion unit is along horizontal track groove A forward slip back downwardly extending, and the front end of second cushion unit provides the support to children's shank, has promoted children's travelling comfort of taking.

(3) The invention relates to a child safety seat with a built-in reclining function, wherein an arc-shaped part extending towards the direction of a seat cushion is arranged at the bottom of a back cushion, and the back cushion is hinged with the rear end of the seat cushion through the arc-shaped part. The arc portion is laminated with children's buttock and waist all the time, provides the holding power to children better, promotes children's travelling comfort of taking. The arc portion of back cushion bottom extends to the seat support direction, and the articulated department that the arc portion set up makes back cushion bottom and cushion rear end is located the seat support top all the time, and then makes the position of sitting adjust the pad be located when first position or second position, can not form obvious step between cushion and the back cushion and influence the travelling comfort.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings that are required to be used in the description of the embodiments will be briefly described below, and it will be apparent that the drawings in the description below are some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the sitting posture adjustment pad of the present invention in a first position of the seat body;

FIG. 3 is a schematic view of the sitting posture adjusting pad of the present invention in a first position of the seat body;

FIG. 4 is a second schematic view of the sitting posture adjustment pad of the present invention in a first position of the seat body;

FIG. 5 is a cross-sectional view of the overall structure of the sitting posture adjustment pad of the present invention in the second position of the seat body;

FIG. 6 is a schematic view of the sitting posture adjustment pad of the present invention in a second position of the chair body;

FIG. 7 is a second schematic view of the sitting posture adjustment pad of the present invention in a second position of the seat body;

FIG. 8 is a schematic perspective view of a locking pin of the present invention;

FIG. 9 is a schematic view of the positions of the transverse track groove A, the transverse track groove B, the transverse track groove C, the first gear locking hole and the second gear locking hole of the present invention;

FIG. 10 is a schematic view of the connection and mating of the slide plate, return spring and first handle of the present invention;

Fig. 11 is a schematic view of the connection fitting of the first cushion unit and the return spring of the present invention.

The reference numerals in fig. 1 to 11 are:

1. A chair body; 11. a seat; 111. a transverse track groove A; 112. a transverse track groove B; 113. a transverse track groove C; 12. a chair back; 121. a vertical track groove; 2. a sitting posture adjusting pad; 21. a cushion; 211. a first cushion unit; 212. a second cushion unit; 2121. a first slider; 2122. a kidney-shaped groove; 22. a back pad; 221. a second slider; 222. an arc-shaped portion; 3. a first connecting rod; 4. a second connecting rod; 5. a locking mechanism; 51. a sliding plate; 511. a straight chute; 512. an inclined chute; 52. a locking pin; 521. a pull rod; 53. a gear locking hole; 531. a first gear locking hole; 532. a second gear locking hole; 6. a return spring; 7. a first handle; 71. a connecting column; 8. and a second handle.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 11, a child safety seat with a built-in reclining function comprises a seat body 1 and a sitting posture adjusting pad 2 movably arranged on the seat body 1, wherein the seat body 1 is provided with a track groove for sliding the sitting posture adjusting pad 2 between a first position and a second position relative to the seat body 1; the seat body 1 comprises a seat 11 and a back 12, the sitting posture adjusting cushion 2 comprises a seat cushion 21 matched with the seat 11 and a back cushion 22 matched with the back 12, and the bottom of the back cushion 22 is hinged with the rear end of the seat cushion 21; the track grooves comprise a transverse track groove arranged on the chair seat 11 and a vertical track groove 121 arranged on the chair back 12; the cushion 21 is in sliding connection with the transverse track groove, and the top of the back cushion 22 is in sliding connection with the vertical track groove 121; when the sitting posture adjusting pad 2 is located at the first position, the seat cushion 21 is located at the rear end of the transverse track groove, the top of the back cushion 22 is located at the top end of the vertical track groove 121, and at this time, the sitting posture adjusting pad 2 is attached to the chair body 1; when the sitting posture adjusting pad 2 slides from the first position to the second position of the seat body 1, the cushion 21 slides forward to the front end of the transverse track groove relative to the seat 11, the bottom of the back pad 22 slides forward along with the cushion 21, and the top of the back pad 22 slides downward to the lower end of the vertical track groove 121 relative to the seat back 12, at this time, at least part of the area of the sitting posture adjusting pad 2 is not attached to the seat body 1, so that the sitting posture adjusting pad 2 is deformed into a form in which a child can lie in the seat body 1 obliquely. The front end of the sliding plate 51 is provided with a first handle 7, the first handle 7 is fixedly connected with the sliding plate 51 through a connecting column 71 penetrating through a cushion 21, the cushion 21 is provided with a waist-shaped groove 2122 in sliding connection with the connecting column 71, and the cushion 21 is fixedly provided with a second handle 8 which is opposite to the first handle 7.

Based on the above embodiments, the present invention is to provide a child safety seat with a built-in reclining function, including a seat body 1, and further including a sitting posture adjustment pad 2 movably disposed on the seat body 1, wherein the seat body 1 is provided with a track groove for sliding the sitting posture adjustment pad 2 between a first position and a second position relative to the seat body 1; when the sitting posture adjusting cushion 2 is located at the first position, the locking pin 52 is in plug-in fit with the first gear locking hole 531, the first connecting rod 3 at the hinge joint of the back cushion 22 and the first cushion unit 211 is located at the rear end of the transverse track groove B112, the second connecting rod 4 at the hinge joint of the first cushion unit 211 and the second cushion unit 212 is located at the rear end of the transverse track groove C113, the first sliding rod at the front end of the second cushion unit 212 is located at the rear end of the transverse track groove a111, the second sliding rod at the top of the back cushion 22 is located at the top end of the vertical track groove 121, and at this time, the sitting posture adjusting cushion 2 is attached to the chair body 1; when the sitting posture adjusting pad 2 slides from the first position to the second position of the seat body 1, the locking pin 52 is in plug-in fit with the second gear locking hole 532, the first connecting rod 3 at the hinge position of the back pad 22 and the first cushion unit 211 is located at the front end of the transverse track groove B112, the second connecting rod 4 at the hinge position of the first cushion unit 211 and the second cushion unit 212 is located at the front end of the transverse track groove C113, the first sliding rod at the front end of the second cushion unit 212 is located at the front end of the transverse track groove a111, and the second sliding rod at the top of the back pad 22 is located at the bottom end of the vertical track groove 121, at this time, at least part of the area of the sitting posture adjusting pad 2 is not attached to the seat body 1, so that the sitting posture adjusting pad 2 is deformed into a form in which a child can lie in the seat body 1 obliquely. The structure design is ingenious, the front end of the first handle 7 is pressed by the thumb of one hand, the second handle 8 is pulled by the other four fingers, then the fist is held, the second handle 8 is pushed or pulled in a clockwise direction, and the locking pin 52 can be switched between the first gear locking hole 531 and the second gear locking hole 532, namely, the position of the sitting posture adjusting pad 2 relative to the chair body 1 is adjusted. When the locking pin 52 is switched from the first gear locking hole 531 to be engaged with the second gear locking hole 532, i.e., when the sitting posture adjusting pad 2 is adjusted from the first position to the second position with respect to the seat body 1, the seat cushion 21 slides forward with respect to the seat 11, the bottom of the back pad 22 slides forward with the seat cushion 21, and the top of the back pad 22 slides downward along the vertical trace groove 121. The design of the structure ensures that when the sitting posture adjusting pad 2 is positioned at the first position or the second position of the chair body 1, the back pad 22 and the seat cushion 21 are connected smoothly, no step is formed, the sitting posture or the sleeping posture of the child in the chair is kept in the optimal state, the child is more comfortable to sit, and the child does not need to be held up in the adjusting process; and no matter when the sitting posture adjusting pad 2 is positioned at the first position or the second position of the chair body 1, the cushion 21 is always attached to the chair seat 11, so that the cushion 21 is more stable and can better provide bearing force for children. In the present embodiment, a plurality of gear locking holes 53 may be provided at the side of the seat 11 to achieve multi-gear adjustment. In a further embodiment, it is preferable that the first gear locking hole 531 and the second gear locking hole 532 are provided, and when the child sits in the seat body 1, the locking pin 52 is engaged with the first gear locking hole 531 in a plugging manner for more comfort of the child sitting therein, and the sitting posture adjusting pad 2 is fitted to the seat back 12, as shown in fig. 2 to 4. When a child is sleeping in the seat body 1, the locking pin 52 is in plug-in fit with the second gear locking hole 532 for comfort of the child, and at least part of the area of the sitting posture adjusting pad 2 is not attached to the seat body 1, so that the sitting posture adjusting pad 2 is deformed into a form in which the child can lie in the seat body 1, as shown in fig. 5 to 7. When the sitting posture adjusting pad 2 is required to be adjusted in use, when the front end of the first handle 7 is pressed by the thumb of one hand, the second handle 8 is pulled by the other four fingers, then the fist is held, the first handle 7 drives the sliding plate 51 to move towards the second handle 8 against the elastic force of the return spring 6, the locking pin 52 which is arranged in the sliding way 512 on the sliding plate 51 slides towards the direction close to the straight sliding groove 511 under the guiding action of the inclined sliding groove 512, namely slides towards the direction far away from the gear locking hole 53, finally the locking pin 52 is separated from the initial gear locking hole 53, meanwhile, the second handle 8 is pushed to move backwards or pulled forwards, then the first handle 7 is released, the sliding plate 51 slides forwards along the straight sliding groove 511 under the elastic force of the return spring 6, the locking pin 52 which is arranged in the sliding way 512 on the sliding plate 51 slides towards the direction far away from the straight sliding groove 511 under the guiding action of the inclined sliding groove 512, namely slides towards the direction close to the gear locking hole 53, and the corresponding gear locking pin 52 is automatically aligned with the gear locking hole 53 when the sitting posture adjusting pad 2 is inserted into the corresponding positioning pad 53. The first handle 7 is fixedly connected with the sliding plate 51 through a connecting column 71 penetrating through the cushion 21, and the cushion 21 is provided with a waist-shaped groove 2122 in sliding fit with the connecting column 71. As shown in fig. 10, the connecting post 71 passes through the seat cushion 21 to fixedly connect the sliding plate 51 below the seat cushion 21 with the first handle 7 above the seat cushion 21, so that the sliding plate 51 can move synchronously with the movement of the first handle 7, the movement track of the first handle 7 is limited by the arrangement of the kidney-shaped groove 2122, and meanwhile, the first handle 7 can slide relative to the seat cushion 21, so that an avoidance space is provided for the sliding of the first handle 7.

As another preferred solution of the present invention, the cushion 21 includes a plurality of cushion units, the cushion units are sequentially arranged on the seat 11 from front to back, two adjacent cushion units are hinged, and the bottom of the back cushion 22 is hinged to the rear end of the cushion unit located at the rearmost side; the hinging positions of two adjacent cushion units and the hinging positions of the back cushion 22 and the corresponding cushion units are respectively provided with a connecting rod; at least part of the connecting rod is in sliding connection with the transverse track groove. The seat cushion 21 comprises a first seat cushion unit 211 and a second seat cushion unit 212, the bottom of the back cushion 22 is hinged to the rear end of the first seat cushion unit 211, the front end of the first seat cushion unit 211 is hinged to the rear end of the second seat cushion unit 212, the front end of the second seat cushion unit 212 is provided with a first sliding rod, the transverse track groove comprises a transverse track groove A111 in sliding connection with the first sliding rod, and the top of the back cushion 22 is provided with a second sliding rod in sliding connection with the vertical track groove 121. The connecting rods comprise a first connecting rod 3 arranged at the hinge joint of the back cushion 22 and the first cushion unit 211 and a second connecting rod 4 arranged at the hinge joint of the first cushion unit 211 and the second cushion unit 212; the transverse track grooves further comprise a transverse track groove B112 in sliding connection with the first connecting rod 3 and a transverse track groove C113 in sliding connection with the second connecting rod 4. In this embodiment, as shown in fig. 2 to 7, a first sliding block 2121 is fixedly disposed at the lower end of the second cushion unit 212, and a first sliding rod is disposed on the first sliding block 2121, and the first sliding rod is slidingly engaged with a transverse track groove a111, where the transverse track groove a111 extends from the front end to the rear end of the seat 11; the top of the back cushion 22 is fixedly provided with a second sliding block 221, the second sliding rod is arranged on the second sliding block 221, the chair back 12 is provided with a vertical track groove 121, the vertical track groove 121 extends from top to bottom, and the second sliding rod is matched with the vertical track groove 121 in a sliding connection manner. The bottom of the back cushion 22 is hinged with the rear end of the cushion 21. The seat cushion 21 can only slide along the front-back direction of the seat 11 under the guiding action of the transverse track groove A111, the bottom of the back cushion 22 slides along the front-back direction of the seat cushion 21 under the hinging action of the first connecting rod 3, and the top of the back cushion 22 can only slide along the up-down direction of the seat back 12 under the guiding action of the vertical track groove 121, so that the back cushion 22 has two forms relative to the seat back 12, namely, the back cushion 22 is attached to the seat back 12, and at the moment, a child can sit in the seat body 1; secondly, the back cushion 22 is not attached to the chair back 12, but is inclined, and the child can lie in the chair body 1 at the moment. In a further embodiment, the vertical track grooves 121 are arranged obliquely from top to bottom, and the horizontal distance between the bottom ends of the vertical track grooves 121 and the seat 11 is smaller than the horizontal distance between the top ends of the vertical track grooves 121 and the seat 11. The design of this structure is in order to make the inclination angle of vertical track groove 121 and back of the chair 12 itself unanimous, and then makes the top of back pad 22 follow the vertical track groove 121 and laminate in back of the chair 12 slip all the time when sliding to can not lead to children to lie uncomfortable because of back pad 22 and back of the chair 12 form obvious step. The back cushion 22, the first cushion unit 211 and the second cushion unit 212 are all connected in a hinged mode, the relative angle between the back cushion 22 and the first cushion unit 211 and the relative angle between the first cushion unit 211 and the second cushion unit 212 can be adjusted in a hinged connection mode, the relative angle between the back cushion 22 and the first cushion unit 211 can be adjusted to facilitate the switching of sitting postures and sleeping postures of children, the relative angle between the first cushion unit 211 and the second cushion unit 212 can be adjusted, the cushion 21 can be attached to the radian of the chair seat 11 before and after adjustment, and the riding comfort of children is improved. Through the sliding connection cooperation of the first slide bar, the second slide bar, the first connecting rod 3 and the second connecting rod 4 with the transverse track groove A111, the vertical track groove 121, the transverse track groove B112 and the transverse track groove C113 respectively, synchronous sliding of the back cushion 22, the first cushion unit 211 and the second cushion unit 212 is realized, the cushion 21 slides along the transverse track groove simultaneously, the cushion 21 is further attached to the seat 11 to slide, the seat 11 always provides supporting force for the cushion 21, the cushion 21 is firmer, and the child takes more comfortably. In a further embodiment, the transverse track grooves a111, B112 and C113 are preferably designed as arc grooves adapted to the curvature of the seat 11, so that the seat cushion 21 will always better fit the seat 11 during sliding. Meanwhile, the front end of the second cushion unit 212 slides forwards along the arc-shaped transverse track groove A111 and then extends downwards, the front end of the second cushion unit 212 supports the legs of the child, and the riding comfort of the child is improved.

As another preferable aspect of the present invention, an arc-shaped portion 222 extending toward the seat 11 is provided at the bottom of the back cushion 22, and the back cushion 22 is hinged to the rear end of the seat cushion 21 through the arc-shaped portion 222. In this embodiment, as shown in fig. 1 to 7, the arc-shaped portion 222 is always attached to the buttocks and the waist of the child, so as to better provide a supporting force for the child and improve the riding comfort of the child. The arc-shaped part 222 at the bottom of the back cushion 22 extends towards the direction of the seat 11, and the hinge joint of the bottom of the back cushion 22 and the rear end of the cushion 21 is always located above the seat 11 by the arc-shaped part 222, so that no obvious step is formed between the cushion 21 and the back cushion 22 to influence comfort no matter the seat cushion 2 is located at the first position or the second position.

As another preferable mode of the invention, a locking mechanism 5 is cooperatively arranged between the chair body 1 and the sitting posture adjusting pad 2, and the locking mechanism 5 is used for locking the sitting posture adjusting pad 2 at a first position or a second position relative to the chair body 1. The locking mechanism 5 comprises a sliding plate 51, a locking pin 52 in sliding connection with the sliding plate 51 and a gear locking hole 53 arranged on the side part of the seat 11, the sliding plate 51 is in sliding connection with the seat cushion 21, a return spring 6 is abutted between the sliding plate 51 and the seat cushion 21, and the return spring 6 acts on the sliding plate 51 to enable the locking pin 52 to always have a trend of being inserted into the gear locking hole 53. The sliding plate 51 is provided with a straight sliding groove 511, the straight sliding groove 511 extends from the rear end to the front end of the sliding plate 51, the sliding plate 51 is further provided with an inclined sliding groove 512 arranged in an eight shape, one end of the locking pin 52 is inserted into the gear locking hole 53 of the seat 11, the other end of the locking pin 52 is provided with a pull rod 521 perpendicular to the locking pin, the pull rod 521 extends into the inclined sliding groove 512, and when the sliding plate 51 slides, the sliding plate 51 drives the locking pin 52 to move along the inclined sliding groove 512 through the inclined sliding groove 512, so that the locking pin 52 is inserted into the gear locking hole 53 or pulled out of the gear locking hole 53. The gear locking hole 53 comprises a first gear locking hole 531 and a second gear locking hole 532, and when the locking pin 52 is in plug-in fit with the first gear locking hole 531, the sitting posture adjusting pad 2 is located at the first position of the seat body 1; when the locking pin 52 is in plug-in engagement with the second gear locking hole 532, the sitting posture adjusting pad 2 is located at the second position of the seat body 1. In this embodiment, as shown in fig. 4,7 and 9, the gear locking hole 53 includes a first gear locking hole 531 and a second gear locking hole 532, and when the locking pin 52 is in plug-in fit with the first gear locking hole 531, the sitting posture adjusting pad 2 is located at the first position of the seat body 1, and at this time, the child can sit in the seat body 1 in a sitting posture. When the sitting posture adjusting pad 2 needs to be adjusted to a second position located in the chair body 1, namely, the locking pin 52 is adjusted to be in plug-in fit with the second gear locking hole 532 from the first gear locking hole 531, only one thumb of one hand is needed to press the front end of the first handle 7, the other four fingers pull the second handle 8 and then make a fist-holding action, the first handle 7 drives the sliding plate 51 to move towards the second handle 8 against the elastic force of the return spring 6, the locking pin 52 which is arranged in the sliding chute 512 on the sliding plate 51 slides towards the direction close to the straight chute 511 under the guiding action of the inclined chute 512, namely, slides towards the direction far away from the gear locking hole 53, finally, the locking pin 52 is separated from the first gear locking hole 531, at this time, the second handle 8 is pulled to move forwards, then the first handle 7 is released, the sliding plate 51 slides forwards along the straight chute 511 under the elastic force of the return spring 6, the inclined chute 512 of the sliding plate 51 moves towards the second handle 8, the locking pin 52 which is arranged in the inclined chute 512 on the sliding plate 51 slides towards the direction close to the straight chute 511, namely, and the second gear locking pin 52 is positioned in the direction close to the second gear locking hole 53, and the chair body 1 can be adjusted, and the locking pin 52 is automatically positioned in the direction close to the second gear locking hole 1, and the position adjusting pad 1 is adjusted. When the sitting posture adjusting pad 2 needs to be adjusted to be positioned at the first position of the chair body 1, namely, the locking pin 52 is adjusted to be in plug-in fit with the first gear locking hole 531 from the second gear locking hole 532, only one thumb of one hand is needed to press the front end of the first handle 7, the other four fingers pull the second handle 8 and then make a fist-holding action, the first handle 7 drives the sliding plate 51 to move towards the second handle 8 against the elastic action of the return spring 6, the locking pin 52 which is arranged in the inclined sliding groove 512 on the sliding plate 51 slides towards the direction close to the straight sliding groove 511 under the guiding action of the inclined sliding groove 512, namely, slides towards the direction far away from the gear locking hole 53, finally, the locking pin 52 is separated from the second gear locking hole 532, the second handle 8 is pushed to move backwards at this moment, then the first handle 7 is released, the sliding plate 51 slides forwards along the straight sliding groove 511 under the elastic action of the return spring 6, the locking pin 52 which is arranged in the inclined sliding groove 512 on the sliding plate 51 moves towards the second handle 8 under the guiding action of the return spring 6, namely, the locking pin 52 slides towards the direction close to the straight sliding groove 511, namely, and the position of the chair body 2 is adjusted to be positioned in the direction close to the second gear locking hole 53, and the position can be adjusted, and the position of the chair body is positioned in the position of the position is adjusted, and the position of the locking pin 52 is positioned in the direction close to the second position locking hole 511. The sliding plate 51 is provided with a straight sliding groove 511, the straight sliding groove 511 extends from the rear end to the front end of the sliding plate 51, the sliding plate 51 is further provided with an inclined sliding groove 512 arranged in an eight shape, one end of the locking pin 52 is inserted into the gear locking hole 53 of the seat 11, the other end of the locking pin 52 is provided with a pull rod 521 perpendicular to the locking pin, the pull rod 521 extends into the inclined sliding groove 512, and when the sliding plate 51 slides, the sliding plate 51 drives the locking pin 52 to move along the inclined sliding groove 512 through the inclined sliding groove 512, so that the locking pin 52 is inserted into the gear locking hole 53 or pulled out of the gear locking hole 53. In this embodiment, as shown in fig. 4,7 and 10, the straight sliding groove 511 extends from the rear end to the front end of the sliding plate 51, i.e., the straight sliding groove 511 extends in the front-rear direction of the seat 11. Through the sliding connection cooperation of the straight sliding groove 511, the inclined sliding groove 512 and the locking pin 52, the sliding of the sliding plate 51 in the front-back direction is converted into the sliding of the locking pin 52 in the left-right direction, so that the locking pin 52 can slide close to or far away from the gear locking hole 53, the locking pin 52 is inserted into the gear locking hole 53 or pulled out of the gear locking hole 53, the position of the sitting posture adjusting pad 2 relative to the chair body 1 is adjusted, different requirements of sitting postures and sleeping postures of children are met, and riding comfort of the children is improved. As shown in fig. 7 and 10, the arrangement of the straight slide groove 511 realizes the limitation of the running track of the slide plate 51, and at the same time, makes the running of the slide plate 51 smoother.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present invention.

Claims

1. Child safety seat with built-in function of lying, including seat body (1), its characterized in that: the chair also comprises a sitting posture adjusting pad (2) movably arranged on the chair body (1), wherein the chair body (1) is provided with a track groove for the sitting posture adjusting pad (2) to slide between a first position and a second position relative to the chair body (1); the seat body (1) comprises a seat (11) and a chair back (12), the sitting posture adjusting pad (2) comprises a seat cushion (21) matched with the seat (11) and a back pad (22) matched with the chair back (12), and the bottom of the back pad (22) is hinged with the rear end of the seat cushion (21); the track grooves comprise transverse track grooves arranged on the chair seat (11) and vertical track grooves (121) arranged on the chair back (12); the seat cushion (21) is in sliding fit with the transverse track groove, and the top of the back cushion (22) is in sliding fit with the vertical track groove (121); when the sitting posture adjusting pad (2) is positioned at the first position, the seat cushion (21) is positioned at the rear end of the transverse track groove, the top of the back cushion (22) is positioned at the top end of the vertical track groove (121), and at the moment, the sitting posture adjusting pad (2) is attached to the chair body (1); when the sitting posture adjusting pad (2) slides to the second position from the first position of the chair body (1), the seat cushion (21) slides forward to the front end of the transverse track groove relative to the seat support (11), the bottom of the back pad (22) slides forward along with the seat cushion (21), the top of the back pad (22) slides downward to the lower end of the vertical track groove (121) relative to the chair back (12), at the moment, at least part of the area of the sitting posture adjusting pad (2) is not attached to the chair body (1), so that the sitting posture adjusting pad (2) is deformed into a form in which a child can lie in the chair body (1) in a leaning way.

2. A child safety seat with built-in reclining function according to claim 1, wherein: the seat cushion (21) comprises a plurality of seat cushion units, the seat cushion units are sequentially arranged on the seat support (11) from front to back, two adjacent seat cushion units are hinged, and the bottom of the back cushion (22) is hinged with the rear end of the seat cushion unit positioned at the rearmost side; connecting rods are arranged at the hinging positions of two adjacent cushion units and the hinging positions of the back cushion (22) and the corresponding cushion units; at least part of the connecting rod is in sliding connection with the transverse track groove.

3. A child safety seat with built-in reclining function according to claim 2, wherein: the cushion (21) comprises a first cushion unit (211) and a second cushion unit (212), the bottom of the back cushion (22) is hinged with the rear end of the first cushion unit (211), the front end of the first cushion unit (211) is hinged with the rear end of the second cushion unit (212), the front end of the second cushion unit (212) is provided with a first sliding rod, the transverse track groove comprises a transverse track groove A (111) in sliding connection with the first sliding rod, and the top of the back cushion (22) is provided with a second sliding rod in sliding connection with the vertical track groove (121).

4. A child safety seat with built-in reclining function according to claim 3, wherein: the connecting rod comprises a first connecting rod (3) arranged at the hinge joint of the back cushion (22) and the first cushion unit (211) and a second connecting rod (4) arranged at the hinge joint of the first cushion unit (211) and the second cushion unit (212); the transverse track groove also comprises a transverse track groove B (112) in sliding connection with the first connecting rod (3) and a transverse track groove C (113) in sliding connection with the second connecting rod (4).

5. A child safety seat with built-in reclining function according to claim 1, wherein: the bottom of the back cushion (22) is provided with an arc-shaped part (222) extending towards the direction of the seat (11), and the back cushion (22) is hinged with the rear end of the cushion (21) through the arc-shaped part (222).

6. A child safety seat with built-in recline function according to any one of claims 1 to 5, wherein: the chair is characterized in that a locking mechanism (5) is arranged between the chair body (1) and the sitting posture adjusting pad (2) in a matched mode, and the locking mechanism (5) is used for enabling the sitting posture adjusting pad (2) to be locked at a first position or a second position relative to the chair body (1).

7. A child safety seat with built-in reclining function according to claim 6, wherein: the locking mechanism (5) comprises a sliding plate (51), a locking pin (52) in sliding connection with the sliding plate (51) and a gear locking hole (53) arranged on the side portion of the seat (11), the sliding plate (51) is in sliding connection with the seat cushion (21), a return spring (6) is propped between the sliding plate (51) and the seat cushion (21), and the return spring (6) acts on the sliding plate (51) to enable the locking pin (52) to always have a trend of being inserted into the gear locking hole (53).

8. A child safety seat with built-in reclining function according to claim 7, wherein: the sliding plate (51) is provided with a straight sliding groove (511), the straight sliding groove (511) extends from the rear end to the front end of the sliding plate (51), the sliding plate (51) is further provided with an inclined sliding groove (512) which is arranged in an eight-shaped mode, one end of the locking pin (52) is inserted into a gear locking hole (53) of the seat (11), the other end of the locking pin (52) is provided with a pull rod (521) perpendicular to the pull rod (521), the pull rod (521) stretches into the inclined sliding groove (512), and when the sliding plate (51) slides, the sliding plate (51) drives the locking pin (52) to move along the inclined sliding groove (512) through the inclined sliding groove (512), so that the locking pin (52) is inserted into the gear locking hole (53) or pulled out from the gear locking hole (53).

9. A child safety seat with built-in reclining function according to claim 7, wherein: the gear locking hole (53) comprises a first gear locking hole (531) and a second gear locking hole (532), and when the locking pin (52) is in plug-in fit with the first gear locking hole (531), the sitting posture adjusting pad (2) is positioned at a first position of the chair body (1); when the locking pin (52) is in plug-in fit with the second gear locking hole (532), the sitting posture adjusting pad (2) is located at the second position of the chair body (1).

10. A child safety seat with built-in reclining function according to claim 7, wherein: the front end of sliding plate (51) is provided with first handle (7), first handle (7) are through spliced pole (71) and sliding plate (51) fixed connection that wear to locate cushion (21), cushion (21) are provided with and connect complex kidney slot (2122) with spliced pole (71) slip, cushion (21) are fixed be provided with second handle (8) that set up relatively with first handle (7).