CN211196327U - Baby carriage frame and baby carriage - Google Patents

Abstract

The utility model relates to a baby carriage frame and baby carriage, wherein the baby carriage frame comprises a handle upper rod (10), a handle lower rod (20), a first locking mechanism (30), a rear foot rod (40), a support rod (50), a second locking mechanism (60) and an unlocking mechanism (70), the first locking mechanism is connected between the handle upper rod and the handle lower rod, and the first locking mechanism is used for realizing the relative locking of the handle upper rod and the handle lower rod; the support rod is arranged between the handle lower rod and the rear foot rod, the second locking mechanism is connected between the support rod and the handle lower rod, the second locking mechanism is used for enabling the support rod and the handle lower rod to be locked relatively, the second locking mechanism is connected with the first locking mechanism, the unlocking mechanism is connected with the first locking mechanism, and the unlocking mechanism is configured to unlock the first locking mechanism and the second locking mechanism simultaneously. The utility model discloses the receipts of frame are closed the process and are simple, and convenient operation can realize one-hand operation, and user experience is better.

Description

Baby carriage frame and baby carriage

Technical Field

The utility model relates to a perambulator technical field especially relates to a perambulator frame and perambulator.

Background

To reduce the burden on the adult, the infant can be placed in the stroller while the infant is out. The stroller is generally foldable, and can be folded when not needed, so that the stroller is convenient to store.

When the stroller is folded, the operator usually needs to hold the stroller with one hand, and thus can only operate the stroller with one hand. At present, most of baby carriages have complicated folding steps, are inconvenient to operate and have poor user experience.

It is noted that the information disclosed in this background section of the invention is only for enhancement of understanding of the general background of the invention, and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a perambulator frame and perambulator improve to receive and close the convenience.

According to an aspect of the utility model, a baby carriage frame is provided, include:

a handle is arranged on the rod;

a lower rod is held;

the first locking mechanism is connected between the handle upper rod and the handle lower rod and used for realizing the relative locking of the handle upper rod and the handle lower rod;

a rear foot bar;

the supporting rod is arranged between the handle lower rod and the rear foot rod;

the second locking mechanism is connected between the supporting rod and the lower handle rod and used for realizing the relative locking of the supporting rod and the lower handle rod, and the second locking mechanism is connected with the first locking mechanism; and

and the unlocking mechanism is connected with the first locking mechanism and is configured to unlock the first locking mechanism and the second locking mechanism simultaneously.

In some embodiments, the first locking mechanism comprises:

the first lock shell is connected with the handle upper rod and is internally provided with a first tooth part;

the second lock shell is connected with the lower rod of the handle and is internally provided with a second tooth part; and

and the gear is arranged between the first lock shell and the second lock shell, and relative locking between the first lock shell and the second lock shell is realized when the gear is simultaneously meshed with the first tooth part and the second tooth part.

In some embodiments, the unlocking mechanism comprises:

a first pull cord; and

first locking piece is connected with first stay cord, sets up the terminal surface side at the gear, and first locking piece is rotated for first lock shell to drive first locking piece when first stay cord is pulled, and then through the axial motion of first locking piece drive gear along the gear to remove the relative locking between first lock shell and the second lock shell.

In some embodiments, a side of the first lock case adjacent to the first lock piece is provided with a first inclined surface extending in a circumferential direction of the gear, and the first inclined surface is inclined with respect to a plane perpendicular to an axis of the gear.

In some embodiments, the unlocking mechanism further comprises a first elastic member disposed on a side of the gear remote from the first lock block, the first elastic member being configured to return the gear to a position in which the first lock housing and the second lock housing are locked relative to each other.

In some embodiments, the unlocking mechanism further comprises an unlocking button, the unlocking button is arranged on the handle upper rod, and the unlocking button is connected with the first pull rope.

In some embodiments, the unlocking mechanism further comprises a second locking block and a second pull rope, a first end of the second pull rope is connected with the second locking block, a second end of the second pull rope is connected with the second locking mechanism, and the gear and the second locking block are configured to drive the second locking block to move when the gear moves along the axial direction of the gear, so that the second pull rope is pulled to unlock the second locking mechanism.

In some embodiments, a second inclined surface is arranged on one side of the gear close to the second locking block, the second locking block is provided with a third inclined surface, and the second locking block moves along the radial direction of the gear under the matching action of the second inclined surface and the third inclined surface when the gear moves along the axial direction of the gear.

In some embodiments, the unlocking mechanism further comprises a second elastic member for resetting the second lock block to restore the locking of the second locking mechanism by the second pull cord.

In some embodiments, the second locking mechanism includes a third locking block for limiting the movement of the support rod in a direction away from the upper rod of the handle, the second end of the second pull rope is connected to the third locking block, and the second pull rope releases the locking of the support rod by the third locking block in a direction away from the upper rod of the handle relative to the lower rod of the handle when pulling the third locking block.

In some embodiments, the second locking mechanism further comprises a fourth locking block for limiting the movement of the support bar in a direction close to the upper bar of the handle, and the fourth locking block is unlocked during the rotation of the lower bar of the handle relative to the rear foot bar.

In some embodiments, the stroller frame further comprises a front foot bar, a seat plate, a first connecting rod, a second connecting rod and a connecting mechanism, the front foot bar is in an inverted T shape, the seat plate is connected with the handle lower bar, the front foot bar, the handle lower bar and the rear foot bar are connected through the connecting mechanism, a first end of the first connecting rod is connected with the seat plate, a second end of the first connecting rod is connected with the second connecting rod, a middle portion of the first connecting rod is connected with the front foot bar, and the second connecting rod is connected with the rear foot bar.

According to another aspect of the present invention, a stroller is provided, comprising the stroller frame.

Based on the technical scheme, the embodiment of the utility model provides an including the release mechanism that can unblock first locking mechanism and second locking mechanism simultaneously, make locking between hand (hold) upper boom and the hand (hold) lower boom and the locking between hand (hold) lower boom and the bracing piece unblock simultaneously, when closing the perambulator like this, can upwards lift the hand (hold) upper boom, make hand (hold) upper boom and hand (hold) lower boom be in upright state basically, then continue to promote the hand (hold) upper boom, can make the hand (hold) upper boom roll over to the hand (hold) lower boom downwards and backward, the bracing piece slides to the direction of keeping away from the hand (hold) upper boom along the hand (hold) lower boom simultaneously, make the hand (hold) lower boom fold forward for back foot bar, and then realize closing of whole perambulator, it is simple to close the process, and convenient operation, can realize one.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural view of an embodiment of a stroller frame of the present invention.

Fig. 2 is an exploded view of the first locking and unlocking mechanism of an embodiment of the stroller frame of the present invention.

Fig. 3 is a schematic view of the first locking mechanism and the unlocking mechanism cooperating with each other according to an embodiment of the stroller frame of the present invention.

Fig. 4 is a schematic structural view of the first lock case and the first lock block engaged with each other according to an embodiment of the stroller frame of the present invention.

Fig. 5 is a schematic structural view of a gear according to an embodiment of the stroller frame of the present invention.

Fig. 6 is a schematic structural view of the second locking piece in an embodiment of the stroller frame of the present invention.

Fig. 7 is a schematic structural view of the engagement of the gear and the second locking piece in one embodiment of the stroller frame of the present invention.

Figure 8 is an exploded view of a second locking mechanism in one embodiment of the stroller frame of the present invention.

Fig. 9 is a schematic view of a second locking mechanism of an embodiment of the stroller frame of the present invention.

Fig. 10 is a side view of the stroller frame of the present invention before being folded.

Fig. 11 is a side view of the stroller frame in a first collapsed state according to an embodiment of the present invention.

Fig. 12 is a side view of the stroller frame in a second collapsed state according to an embodiment of the present invention.

Fig. 13 is a side view of the stroller frame in a third collapsed state according to an embodiment of the present invention.

Fig. 14 is a side view of an embodiment of the stroller frame of the present invention in a fully collapsed position.

In the figure:

10. a handle is arranged on the rod; 20. a lower rod is held; 30. a first locking mechanism; 40. a rear foot bar; 50. a support bar; 60. a second locking mechanism; 70. an unlocking mechanism; 80. a front foot bar; 90. a connecting mechanism; 100. a first link; 110. a second link; 120. a front wheel; 130. a rear wheel; 140. a lock; 150. a stop lever; 160. a seat plate; 170. a grab rail; 180. a back rest rod; 190. a ceiling front bar; 200. a ceiling rear bar;

31. a first lock case; 32. a second lock case; 33. a gear;

311. a first tooth portion; 312. a first inclined plane; 313. a connecting shaft; 321. a second tooth portion; 331. a second inclined plane;

601. a third locking block; 602. a fourth locking piece; 603. a first connecting rod; 604. a second connecting rod; 605. a third elastic member; 606. a fourth elastic member; 607. a fixed seat; 608. a slider; 609. a third connecting rod; 610. a sliding sleeve;

6071. a fourth aperture; 6072. a fifth aperture; 6073. a sixth hole;

6081. a first hole; 6082. a second hole; 6083. a third aperture;

6101. a first lock hole; 6102. a second lock hole; 6103. connecting holes;

71. a first pull cord; 72. a first lock block; 73. a first elastic member; 74. a second lock block; 741. a third inclined plane; 75. a second pull cord; 76. a second elastic member;

91. and a third pull rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention.

As shown in fig. 1, in an embodiment of the stroller frame provided by the present invention, the stroller frame comprises a handle upper rod 10, a handle lower rod 20, a first locking mechanism 30, a rear foot rod 40, a support rod 50, a second locking mechanism 60 and an unlocking mechanism 70, the first locking mechanism 30 is connected between the handle upper rod 10 and the handle lower rod 20, the first locking mechanism 30 is used for relatively locking the handle upper rod 10 and the handle lower rod 20, the support rod 50 is arranged between the handle lower rod 20 and the rear foot rod 40, the second locking mechanism 60 is connected between the support rod 50 and the handle lower rod 20, the second locking mechanism 60 is used for relatively locking the support rod 50 and the handle lower rod 20, and the second locking mechanism 60 is connected to the first locking mechanism 30 and the unlocking mechanism 70 is connected to the first locking mechanism 30, the unlocking mechanism 70 being configured to simultaneously unlock the first locking mechanism 30 and the second locking mechanism 60.

In the above embodiment, the stroller frame includes the unlocking mechanism 70 capable of unlocking the first locking mechanism 30 and the second locking mechanism 60 simultaneously, so that the locking between the handle upper rod 10 and the handle lower rod 20 and the locking between the handle lower rod 20 and the support rod 50 can be unlocked simultaneously, so that when the stroller is folded, the handle upper rod 10 can be lifted upwards, the handle upper rod 10 and the handle lower rod 20 are basically in an upright state, and then the handle upper rod 10 is pushed continuously, so that the handle upper rod 10 can be folded downwards and backwards towards the handle lower rod 20, and the support rod 50 slides along the handle lower rod 20 in a direction away from the handle upper rod 10, so that the handle lower rod 20 is folded forwards relative to the rear foot rod 40, thereby achieving folding of the entire stroller.

The upper handle rod 10 and the lower handle rod 20 are rotatably connected through a first locking mechanism 30, and when the first locking mechanism 30 is in a locking state, the upper handle rod 10 and the lower handle rod 20 are relatively fixed and cannot relatively rotate; when the first locking mechanism 30 is in the unlocked state, the handle upper bar 10 and the handle lower bar 20 can rotate relatively.

The first end of the supporting rod 50 is slidably connected to the handle lower rod 20 through the second locking mechanism 60, when the second locking mechanism 60 is in a locking state, the handle lower rod 20 and the supporting rod 50 are relatively fixed, and the supporting rod 50 cannot slide relative to the handle lower rod 20; when the second locking mechanism 60 is in the unlocked state, the support bar 50 can slide relative to the handlebar lower bar 20.

The second end of the support rod 50 is rotatably connected to the rear foot bar 40, and the connection position of the support rod 50 and the rear foot bar 40 is relatively fixed, i.e. the support rod 50 does not slide along the rear foot bar 40, but the support rod 50 can rotate relative to the rear foot bar 40.

As shown in fig. 2, the first locking mechanism 30 includes a first lock case 31, a second lock case 32 and a gear 33, the first lock case 31 is connected to the handlebar upper rod 10, a first tooth 311 is provided in the first lock case 31, the second lock case 32 is connected to the handlebar lower rod 20, a second tooth 321 is provided in the second lock case 32, the gear 33 is provided between the first lock case 31 and the second lock case 32, and the gear 33 is engaged with the first tooth 311 and the second tooth 321 to lock the first lock case 31 and the second lock case 32 relative to each other.

The first lock case 31 and the second lock case 32 are P-shaped, and a rod portion is connected to the handle upper rod 10 or the handle lower rod 20, and a circular portion is provided with a tooth portion engaged with the gear 33.

The unlocking mechanism 70 includes a first rope 71 and a first lock block 72, the first lock block 72 is connected to the first rope 71, the first lock block 72 is disposed on a side surface of an end surface (a surface perpendicular to an axial direction of the gear 33) of the gear 33, when the first rope 71 is pulled, the first lock block 72 is driven to rotate relative to the first lock case 31, and then the gear 33 is driven to move along the axial direction of the gear 33 by the first lock block 72, so as to release the relative locking between the first lock case 31 and the second lock case 32.

When the first locking mechanism 30 is in a locked state, the gear 33 is simultaneously meshed with the first tooth portion 311 and the second tooth portion 321, so that the first lock shell 31 and the second lock shell 32 cannot rotate relatively; when the first locking mechanism 30 needs to be unlocked, the first pulling rope 71 can be pulled, the first pulling rope 71 can drive the first locking block 72 to rotate relative to the first lock shell 31 after being pulled, the first locking block 72 can drive the gear 33 to move along the axial direction of the gear 33 after being rotated, so that the gear 33 is separated from the position where the gear 33 is simultaneously meshed with the first tooth portion 311 and the second tooth portion 321, for example, as shown in fig. 3, the first locking block 72 is arranged on one side of the gear 33 close to the first lock shell 31, and when the gear 33 completely enters the second lock shell 32, the relative locking between the first lock shell 31 and the second lock shell 32 is released, so that the handlebar upper rod 10 and the handlebar lower rod 20 can rotate relatively to realize folding.

As shown in fig. 4, a side of the first lock case 31 close to the first lock piece 72 is provided with a first inclined surface 312 extending in the circumferential direction of the gear 33, and the first inclined surface 312 is inclined with respect to a plane perpendicular to the axis of the gear 33. The first inclined surface 312 is an arc-shaped inclined surface.

By providing the first inclined surface 312, when the first locking block 72 rotates relative to the first lock housing 31, the first locking block 72 simultaneously moves axially along the first inclined surface 312 in the axial direction of the gear 33, so as to push the gear 33 to move axially, so that the driving gear 33 leaves the position where the driving gear 33 is simultaneously meshed with the first tooth portion 311 and the second tooth portion 321, and the first locking mechanism 30 is unlocked.

The connecting shaft 313 is mounted on the inner side of the first lock case 31, the first locking block 72 is sleeved on the connecting shaft 313, and when the first pulling rope 71 is pulled, the first locking block 72 is driven to rotate around the connecting shaft 313 relative to the first lock case 31.

The unlocking mechanism 70 further includes a first elastic member 73, the first elastic member 73 is disposed on a side of the gear 33 away from the first lock block 72, and the first elastic member 73 is used for restoring the gear 33 to a position in which the first lock case 31 and the second lock case 32 are relatively locked.

By providing the first elastic member 73, the drive gear 33 can be reset by the action of the elastic potential energy after the tension of the first cord 71 disappears, and the first locking mechanism 30 can be restored to the locked state, thereby ensuring the safety of the stroller.

The unlocking mechanism 70 further includes an unlocking button provided on the handle upper bar 10, and the unlocking button is connected to the first pull cord 71.

The release button may be provided on the handlebar at a position intermediate the transverse portions of the lever 10 that is convenient for the user to operate. The unlocking button may adopt a pressing type or a sliding type structure to achieve the purpose of pulling the first pulling rope 71 by pressing or sliding the button.

To achieve the effect of simultaneously unlocking the first locking mechanism 30 and the second locking mechanism 60, the unlocking mechanism 70 further includes a second lock block 74 and a second pull rope 75, a first end of the second pull rope 75 is connected with the second lock block 74, a second end of the second pull rope 75 is connected with the second locking mechanism 60, and the gear 33 and the second lock block 74 are configured to drive the second lock block 74 to move when the gear 33 moves along the axial direction of the gear 33, so as to pull the second pull rope 75 to achieve the unlocking of the second locking mechanism 60.

When the gear 33 moves in its axial direction, i.e., when the first locking mechanism 30 is unlocked, the second lock piece 74 may be driven to move, and thus the second locking mechanism 60 may be unlocked by the second pull cord 75, i.e., the first locking mechanism 30 and the second locking mechanism 60 are unlocked simultaneously.

As shown in fig. 5, a second inclined surface 331 is provided on a side of the gear 33 close to the second locking piece 74, as shown in fig. 6, the second locking piece 74 is provided with a third inclined surface 741, and when the gear 33 moves along the axial direction of the gear 33, the second locking piece 74 moves along the radial direction of the gear 33 under the cooperation of the second inclined surface 331 and the third inclined surface 741.

As shown in fig. 7, the second inclined surface 331 on the gear 33 and the third inclined surface 741 on the second locking block 74 cooperate with each other, and when the gear 33 moves along the axial direction thereof, the gear 33 drives the second locking block 74 to move along the radial direction of the gear 33 under the cooperation of the second inclined surface 331 and the third inclined surface 741, so as to pull the second pull rope 75, and unlock the second locking mechanism 60.

The unlocking mechanism 70 further includes a second elastic member 76, and the second elastic member 76 is used to reset the second locking piece 74 to restore the locking of the second locking mechanism 60 by the second pulling rope 75.

After the pulling force of the first cord 71 disappears, the driving gear 33 can be reset by the action of the elastic potential energy of the first elastic member 73, and the first locking mechanism 30 is restored to the locked state; meanwhile, by providing the second elastic member 76, after the gear 33 is reset, the second lock piece 74 can be reset by the elastic potential energy of the second elastic member 76, and the second cord 75 can also be reset, so that the second lock mechanism 60 can be restored to the locked state.

As shown in fig. 8 and 9, the second locking mechanism 60 includes a third lock block 601 for restricting the movement of the support lever 50 in a direction away from the handle upper lever 10, the second end of the second pull cord 75 is connected to the third lock block 601, and when the second pull cord 75 pulls the third lock block 601, the third lock block 601 releases the lock of the support lever 50 in the direction away from the handle upper lever 10 with respect to the handle lower lever 20.

When the second pull cord 75 pulls the third locking piece 601, the third locking piece 601 retracts, and the third locking piece 601 releases the locking of the support rod 50 to the handle lower rod 20 to move in the direction away from the handle upper rod 10, so that the support rod 50 can move in the direction away from the handle upper rod 10 relative to the handle lower rod 20, and the handle lower rod 20 can be folded forward.

It can be seen that the above-mentioned unlocking mechanism 70 simultaneously unlocks the first locking mechanism 30 and the second locking mechanism 60, which may refer to the locking of the third locking block 601 for limiting the movement of the support bar 50 away from the handlebar upper bar 10, which simultaneously unlocks the first locking mechanism 30 and the second locking mechanism 60.

The second locking mechanism 60 further includes a fourth locking block 602 for limiting the movement of the support bar 50 in a direction close to the handlebar upper bar 10, and the fourth locking block 602 is unlocked during the rotation of the handlebar lower bar 20 relative to the rear foot bar 40.

Further, the second locking mechanism 60 further includes a first connecting rod 603, a second connecting rod 604, a third elastic member 605, a fourth elastic member 606, a fixing seat 607, a sliding block 608, a third connecting rod 609 and a sliding sleeve 610.

The sliding sleeve 610 is sleeved on the handle lower rod 20, and the sliding sleeve 610 is provided with a first locking hole 6101, a second locking hole 6102 and a connecting hole 6103. The first locking hole 6101 and the second locking hole 6102 are both holes with one side open in the circumferential direction, the opening of the first locking hole 6101 faces away from the handle upper bar 10, and the opening of the second locking hole 6102 faces towards the direction close to the handle upper bar 10. The connecting hole 6103 is used to connect the sliding sleeve 610 and the support rod 50.

The sliding sleeve 610 is connected to a first end of the support rod 50, a first locking hole 6101 is provided at an end of the sliding sleeve 610 away from the handle upper rod 10, and the third locking block 601 is inserted into the first locking hole 6101 in a locking state to limit the movement of the sliding sleeve 610 from a position locked with respect to the handle lower rod 20 to a direction away from the handle upper rod 10. The first end of the second pulling rope 75 is connected to the second locking block 74, the second end of the second pulling rope 75 is connected to the third locking block 601, and when the second pulling rope 75 is pulled, the third locking block 601 is driven to disengage from the first locking hole 6101, so as to release the restriction of the movement of the sliding sleeve 610 in the direction away from the handle upper lever 10.

The second locking hole 6102 is disposed at an end of the sliding sleeve 610 close to the handle upper bar 10, and the fourth locking block 602 is inserted into the second locking hole 6102 in the locking state to limit the movement of the sliding sleeve 610 from the position locked with respect to the handle lower bar 20 to the direction close to the handle upper bar 10.

The stroller frame further comprises a front foot rod 80, a seat plate 160, a first connecting rod 100, a second connecting rod 110 and a connecting mechanism 90, the front foot rod 80 is in an inverted T shape, the seat plate 160 is connected with a handle lower rod 20, the front foot rod 80, the handle lower rod 20 and the rear foot rod 40 are connected through the connecting mechanism 90, the first end of the first connecting rod 100 is connected with the seat plate 160, the second end of the first connecting rod 100 is connected with the second connecting rod 110, the middle part of the first connecting rod 100 is connected with the front foot rod 80, and the second connecting rod 110 is connected with the rear foot rod 40.

By providing the first link 100 and the second link 110, better support for the seat plate 160, the front leg bar 80, and the rear leg bar 40 can be achieved. The first end of the first link 100 is rotatably connected to the seat plate 160, the second end of the first link 100 is rotatably connected to the second link 110, the middle of the first link 100 is rotatably connected to the front leg 80, and the second link 110 is rotatably connected to the rear leg 40, so as to facilitate folding of the frame.

The front foot bar 80, the handle lower bar 20 and the rear foot bar 40 are connected by a connecting mechanism 90, and the connecting mechanism 90 is configured to enable the front foot bar 80, the handle lower bar 20 and the rear foot bar 40 to rotate relatively.

A third locking mechanism and a third pull rope 91 are provided in the connecting mechanism 90, and the third pull rope 91 is connected to the third locking mechanism.

The first end of the third pulling rope 91 is connected to the fourth locking block 602, the second end of the third pulling rope 91 is connected to the third locking mechanism in the connecting mechanism 90, and when the handle lower rod 20 rotates relative to the front foot rod 80 and the rear foot rod 40, the third pulling rope 91 is pulled to drive the fourth locking block 602 to disengage from the second locking hole 6102, so as to release the restriction on the movement of the sliding sleeve 610 in the direction approaching the handle upper rod 10.

Fixing base 607 sets up in the inside of hand (hold) lower beam 20, and the top surface and the bottom surface of fixing base 607 are equipped with the recess respectively, and slider 608 is the U-shaped, and vertical portion includes first gleitbretter and second gleitbretter, and when slider 608 was inserted on fixing base 607, first gleitbretter and second gleitbretter blocked respectively in the recess of fixing base 607 top surface and bottom surface, and the three side of recess (being front side, rear side and right side) all is equipped with the portion of blockking, has limiting displacement to first gleitbretter and second gleitbretter.

Be equipped with first lock chamber and second lock chamber on the fixing base 607, the top surface and the bottom surface of fixing base 607 are equipped with fourth hole 6071, fifth hole 6072 and sixth hole 6073 respectively, and the fourth hole 6071 of top surface and the fourth hole 6071 of bottom surface are just in time opposite, and with first lock chamber intercommunication, and the fifth hole 6072 of top surface and the fifth hole 6072 of bottom surface are just in time opposite, and with second lock chamber intercommunication.

The first lock cavity of the fixing seat 607 is used for accommodating the third lock block 601, the third lock block 601 moves relative to the fixing seat 607 under the action of the second pull rope 75 to extend or retract into the first lock cavity, the sliding block 608 is provided with a first hole 6081, the first connecting rod 603 is connected with the third lock block 601 and inserted into the first hole 6081, and the first hole 6081 is configured to be capable of driving the third lock block 601 to retract into the first lock cavity under the action of the second pull rope 75 and driving the third lock block 601 to move along the extending direction of the third pull rope 91 when the sliding block 608 moves relative to the fixing seat 607.

The second lock cavity of the fixing seat 607 is used for accommodating the fourth lock block 602, the sliding block 608 is slidably disposed relative to the fixing seat 607, one end of the sliding block 608, which is far away from the handle upper rod 10, is connected to the third pull rope 91, the sliding block 608 is provided with a second hole 6082, the shape of the second hole 6082 is configured to enable the fourth lock block 602 to extend out or retract into the second lock cavity when the sliding block 608 moves relative to the fixing seat 607, the second connecting rod 604 is connected to the fourth lock block 602, and the fourth lock block 602 is inserted into the second hole 6082.

The first lock cavity is provided with a third elastic element 605, the third elastic element 605 is connected with the third lock block 601, and the third elastic element 605 is used for driving the third lock block 601 disengaged from the first lock hole 6101 to be reinserted into the first lock hole 6101, so that the third lock block 601 is restored to the lock position.

A fourth elastic member 606 is disposed in the second lock cavity, the fourth elastic member 606 is connected to the fourth lock block 602, and the fourth elastic member 606 is used for driving the fourth lock block 602 disengaged from the second lock hole 6102 to be reinserted into the second lock hole 6102, so that the fourth lock block 602 is restored to the lock position.

Specifically, the first sliding piece and the second sliding piece of the sliding block 608 respectively have a first hole 6081, a second hole 6082, and a third hole 6083, the first hole 6081 is in the shape of a right triangle, two right-angled sides are respectively parallel and perpendicular to the extending direction of the third rope 91, and the second hole 6082 is in the shape of a long hole that is obliquely disposed with respect to the extending direction of the third rope 91. The third hole 6083 is also an elongated hole shape, and the longitudinal direction thereof is parallel to the extending direction of the third cord 91.

The first connecting rod 603 passes through a first hole 6081 on the first slide of the sliding block 608, a fourth hole 6071 on the fixed seat 607, a first lock cavity on the fixed seat 607 and a first hole 6081 on the second slide of the sliding block 608, and the second connecting rod 604 passes through a second hole 6082 on the first slide of the sliding block 608, a fifth hole 6072 on the fixed seat 607, a second lock cavity on the fixed seat 607 and a second hole 6082 on the second slide of the sliding block 608. The third connecting rod 609 passes through a third hole 6083 in the first slide of the slide 608, a sixth hole 6073 in the fixed seat 607, and a third hole 6083 in the second slide of the slide 608.

The stroller frame further includes a front wheel 120, a rear wheel 130, a latch 140, a bar 150, a grab bar 170, a back bar 180, a ceiling front bar 190, and a ceiling rear bar 200. Two front wheels 120 are respectively mounted on the left and right sides of the front leg bar 80, and two rear wheels 130 are respectively mounted on the left and right sides of the rear leg bar 40. The locking member 140 is mounted on the rear leg 40 such that when the frame is folded, the locking member 140 locks the support rod 50 to prevent the frame from being unfolded accidentally. The front end of the seat plate 160 is provided with a stopper 150 for restricting the legs of the infant. The grab bar 170 is U-shaped and is connected to the rear side of the seat plate 160 for the baby to lean against. The back lever 180 is provided at the rear side of the seat plate 160. The ceiling front rod 190 and the ceiling rear rod 200 are both provided at the joint of the handle upper rod 10 and the handle lower rod 20 for supporting the ceiling of the vehicle frame.

The following describes a folding process of an embodiment of a stroller frame of the present invention with reference to fig. 10 to 14:

as shown in fig. 10, the front canopy bar 190 is folded upward to be substantially parallel to the upper handle bar 10;

then, the unlocking mechanism 70 is operated to unlock the first locking mechanism 30 and the third locking block 601 of the second locking mechanism 60 simultaneously, so that the handle upper rod 10 and the handle lower rod 20 can rotate relatively, and the sliding sleeve 610 can move downwards relative to the handle lower rod 20;

at this time, the upper handle bar 10 is lifted up, so that the upper handle bar 10 and the lower handle bar 20 are both lifted up to be substantially perpendicular to the ground, as shown in fig. 11;

then, the handle upper rod 10 is pushed continuously, the handle upper rod 10 and the handle lower rod 20 rotate relatively, the handle lower rod 20 is folded forward and downward relative to the rear foot rod 40, and the handle upper rod 10 is folded backward and downward relative to the handle lower rod 20, as shown in fig. 12;

during the rotation of the handle lower bar 20 relative to the front foot bar 80 and the rear foot bar 40, the third locking mechanism in the connecting mechanism 90 pulls the third pull rope 91 to retract the fourth locking block 602, and the second locking mechanism 60 is completely unlocked, at which time the sliding sleeve 610 can move upward relative to the handle lower bar 20 until it passes over the fixing seat 607 and continues to move upward, as shown in fig. 13, so that the handle upper bar 10 and the handle lower bar 20 can continue to be folded forward;

as shown in fig. 14, the handlebar upper and lower rods 10 and 20 are folded to a position near the front side of the front foot bar 80, and the frame is in a fully collapsed state with minimal volume contraction. In the fully retracted state, the locking member 140 is engaged with the support rod 50 to prevent the frame from being accidentally unfolded.

Based on foretell perambulator frame, the utility model discloses still provide a perambulator, this perambulator includes foretell perambulator frame. The positive technical effects of the stroller frame in the above embodiments are also applicable to the stroller, and are not described herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the utility model discloses a do not deviate from under the prerequisite of the principle, still can be right the utility model discloses a specific embodiment modifies or carries out the equivalent replacement to some technical features, and these are modified and should be covered with the equivalent replacement in the middle of the technical scheme scope of the utility model.

Claims (13)

1. A stroller frame, comprising:

a handle upper rod (10);

a handle lower bar (20);

the first locking mechanism (30) is connected between the upper handle rod (10) and the lower handle rod (20) and is used for realizing the relative locking of the upper handle rod (10) and the lower handle rod (20);

a rear foot bar (40);

a support bar (50) disposed between the handle lower bar (20) and the rear foot bar (40);

the second locking mechanism (60) is connected between the supporting rod (50) and the handle lower rod (20) and used for enabling the supporting rod (50) and the handle lower rod (20) to be locked relatively, and the second locking mechanism (60) is connected with the first locking mechanism (30); and

an unlocking mechanism (70) connected to the first locking mechanism (30) and configured to simultaneously unlock the first locking mechanism (30) and the second locking mechanism (60).

2. The stroller frame according to claim 1, characterized in that the first locking mechanism (30) comprises:

the first lock shell (31) is connected with the handle upper rod (10) and is internally provided with a first tooth part (311);

a second lock case (32) connected to the handle lower bar (20) and having a second tooth portion (321) therein; and

a gear (33) arranged between the first lock housing (31) and the second lock housing (32), the gear (33) effecting a relative locking between the first lock housing (31) and the second lock housing (32) when simultaneously engaging the first tooth (311) and the second tooth (321).

3. The stroller frame according to claim 2, characterized in that the unlocking mechanism (70) comprises:

a first cord (71); and

the first locking block (72) is connected with the first pull rope (71) and arranged on the side face of the end face of the gear (33), when the first pull rope (71) is pulled, the first locking block (72) is driven to rotate relative to the first lock shell (31), and then the gear (33) is driven to move along the axial direction of the gear (33) through the first locking block (72), so that the relative locking between the first lock shell (31) and the second lock shell (32) is released.

4. The stroller frame according to claim 3, characterized in that a side of the first lock housing (31) adjacent to the first lock piece (72) is provided with a first inclined surface (312) extending in a circumferential direction of the gear (33), the first inclined surface (312) being inclined with respect to a plane perpendicular to an axis of the gear (33).

5. The stroller frame according to claim 3, characterized in that the unlocking mechanism (70) further comprises a first elastic member (73), the first elastic member (73) is arranged on a side of the gear wheel (33) away from the first lock block (72), and the first elastic member (73) is used for resetting the gear wheel (33) to a position for relatively locking the first lock housing (31) and the second lock housing (32).

6. The stroller frame according to claim 3, characterized in that the unlocking mechanism (70) further comprises an unlocking button provided on the handlebar upper lever (10), the unlocking button being connected with the first cord (71).

7. The stroller frame according to claim 2, wherein the unlocking mechanism (70) further comprises a second lock block (74) and a second pull cord (75), a first end of the second pull cord (75) is connected with the second lock block (74), a second end of the second pull cord (75) is connected with the second locking mechanism (60), and the gear (33) and the second lock block (74) are configured to drive the second lock block (74) to move when the gear (33) moves along the axial direction of the gear (33) so as to pull the second pull cord (75) to unlock the second locking mechanism (60).

8. The stroller frame according to claim 7, wherein a side of the gear (33) close to the second locking piece (74) is provided with a second inclined surface (331), the second locking piece (74) is provided with a third inclined surface (741), and the second locking piece (74) moves along a radial direction of the gear (33) under the cooperation of the second inclined surface (331) and the third inclined surface (741) when the gear (33) moves along the axial direction of the gear (33).

9. The stroller frame according to claim 7, characterized in that the unlocking mechanism (70) further comprises a second elastic member (76), the second elastic member (76) being used to reset the second lock block (74) to restore the locking of the second locking mechanism (60) by the second pull cord (75).

10. The stroller frame according to claim 7, wherein the second locking mechanism (60) comprises a third locking piece (601) for limiting the movement of the support rod (50) in a direction away from the handle upper rod (10), the second end of the second pull rope (75) is connected to the third locking piece (601), and the second pull rope (75) pulls the third locking piece (601) to unlock the support rod (50) from moving in a direction away from the handle upper rod (10) relative to the handle lower rod (20).

11. The stroller frame according to claim 1, wherein the second locking mechanism (60) further comprises a fourth locking block (602) for limiting the movement of the support rod (50) in a direction approaching the handlebar upper rod (10), the fourth locking block (602) being unlocked during the rotation of the handlebar lower rod (20) relative to the rear foot rod (40).

12. The stroller frame according to claim 1, further comprising a front foot bar (80), a seat plate (160), a first connecting rod (100), a second connecting rod (110) and a connecting mechanism (90), wherein the front foot bar (80) is in an inverted T shape, the seat plate (160) is connected with the handle lower bar (20), the front foot bar (80), the handle lower bar (20) and the rear foot bar (40) are connected through the connecting mechanism (90), a first end of the first connecting rod (100) is connected with the seat plate (160), a second end of the first connecting rod (100) is connected with the second connecting rod (110), a middle part of the first connecting rod (100) is connected with the front foot bar (80), and the second connecting rod (110) is connected with the rear foot bar (40).

13. A stroller comprising a stroller frame according to any one of claims 1 to 12.

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