CN219295497U - Baby carriage and folding mechanism thereof - Google Patents

Abstract

The utility model relates to the technical field of baby carriages, in particular to a baby carriage and a folding mechanism thereof, wherein the folding mechanism comprises a handle frame, a front wheel frame, a rear wheel frame, a connecting component, a sliding component, a connecting rod component and a locking device, an unlocking component is arranged on the handle frame, a parent can pull a pull rope with one end fixed on the unlocking component through the locking component, a clamping wheel rotates, the clamping wheel rotates to enable a lug to be abutted against a rotating piece and push the rotating piece to rotate, so that a second locking hook is driven to deviate to one side, the second locking hook is separated from a first locking hook, unlocking is completed, the handle frame is folded towards the rear wheel frame under the influence of dead weight, the second connecting rod drives the front wheel frame to be folded towards the rear wheel frame, so that folding is completed, the parent can unlock the baby carriage without bending or squatting and can automatically complete folding operation by the parent.

Description

Baby carriage and folding mechanism thereof

Technical Field

The utility model relates to the technical field of strollers, in particular to a stroller and a folding mechanism thereof.

Background

The baby stroller is used by a large number of users as a necessary tool for the infant to travel. At present, users pay more attention to the stability and safety of the baby strollers besides the basic requirements of small size, portability, foldability and the like of the baby strollers.

The related art document discloses a child car frame capable of being folded quickly, comprising a front leg group, a rear leg group, a handle group and two folding structures; each folding structure comprises a lower joint, an upper joint and a joint supporting seat; in each folding structure, the lower joint is connected with the front leg group; the upper joint is connected with the handle group; the joint supporting seat is connected with the rear foot group; the lower joint is rotatably connected with the joint supporting seat, and the upper joint is rotatably connected with the joint supporting seat; one end of a linkage connecting rod capable of enabling the lower joint and the upper joint to generate linkage rotation in opposite directions is rotatably connected with the upper joint, and the other end of the linkage connecting rod is rotatably connected with the lower joint; the device also comprises a control mechanism which can limit the rotation of the lower joint and the upper joint relative to the joint support seat. When a parent singly takes the child to go out, the child needs to be held out of the baby carriage, and because the control mechanism is arranged on the joint supporting seat, the parent needs to bend down or squat down to unlock the control mechanism, and then the child is folded, so that the operation is inconvenient.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a baby stroller and a folding mechanism thereof, and aims to solve the problem that a control mechanism can be unlocked only by a parent who bends or squats.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, the present utility model discloses a folding mechanism of a stroller, comprising:

a handle frame;

a front wheel frame;

a rear wheel frame provided with a sliding groove;

the connecting assembly comprises a rotating wheel main body, and a first sleeve, a second sleeve and a third sleeve which are arranged in different directions of the rotating wheel main body, wherein the first sleeve is hinged with the front wheel frame, the second sleeve is fixedly connected with the rear wheel frame, and the third sleeve is hinged with the handle frame;

the sliding assembly comprises a sliding piece and a first lock hook, wherein the sliding piece is fixedly connected with the first lock hook and is connected with the sliding groove in a sliding manner;

the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the handle frame, the other end of the first connecting rod is hinged with the sliding piece, one end of the second connecting rod is hinged with the front wheel frame, the other end of the second connecting rod is hinged with the sliding piece,

the locking device comprises an unlocking component, a pull rope, a clamping wheel, a rotating piece and a second lock hook, wherein the unlocking component is arranged on the handle frame, the pull rope is arranged in the handle frame, one end of the pull rope is connected with the unlocking component, the other end of the pull rope is connected with the clamping wheel, the clamping wheel is arranged in the rotating wheel main body, the clamping wheel is provided with a protruding block, one end of the rotating piece is arranged on a rotating path of the protruding block, the other end of the rotating piece is hinged with the rear wheel frame and is fixedly connected with the second lock hook, and the second lock hook and the first lock hook can be mutually clamped or separated to be locked or unlocked.

As the preferable scheme, the unlocking component comprises an unlocking sleeve and an unlocking push button, the unlocking sleeve is sleeved on the handle frame, the unlocking sleeve is provided with a through groove, the unlocking push button is slidably connected with the through groove, the unlocking push button is provided with a fixing piece, and the fixing piece penetrates through the through groove and the through hole of the handle frame to be fixedly connected with the pull rope.

As the preferable scheme, the unlocking assembly further comprises two safety push buttons, each safety push button comprises a push button body and a reset spring, the end parts of the push button bodies are in butt joint with the unlocking push buttons, the push button bodies are hinged to the unlocking sleeve through mounting posts, and the reset springs are arranged inside the push button bodies.

As the preferable scheme, preceding wheel frame includes preceding wheel support, first roller train and second roller train, preceding wheel support is U style of calligraphy, the upper left end and the upper right end of preceding wheel support respectively with two first external member are articulated, first roller train with the second roller train sets up respectively the lower left end and the lower right end of preceding wheel support, first roller train with the second roller train all includes installation base and first roller support, the installation base pass through the rotation axis install in preceding wheel support, the level is provided with the round pin axle in the first roller support, first roller support passes through the round pin axle with the installation base is articulated, the installation base with be provided with damping spring between the first roller support and be connected, first roller support tip is provided with preceding gyro wheel.

As the preferable scheme, the rear wheel frame comprises a rear wheel bracket, a third roller group and a fourth roller group, wherein the rear wheel bracket is H-shaped, the sliding groove is formed in the rear wheel bracket, the left upper end and the right upper end of the rear wheel bracket are respectively fixedly connected with two second external members, the third roller group and the fourth roller group are respectively arranged at the left lower end and the right lower end of the rear wheel bracket, the third roller group and the fourth roller group respectively comprise a second roller bracket and a rear roller, the second roller bracket is fixedly connected with the rear wheel bracket, and the second roller bracket is connected with the rear roller through a rotating shaft.

As an optimal scheme, the handle frame is U-shaped, and the left lower end and the right lower end of the handle frame are respectively hinged with the two third external members.

In a second aspect, the utility model also discloses a stroller, which comprises a seat cushion and the folding mechanism according to the first aspect, wherein the seat cushion is fixedly arranged on the folding mechanism.

The baby stroller and the folding mechanism thereof have the beneficial effects that:

according to the utility model, the unlocking assembly is arranged on the handle frame, a parent can pull the pull rope with one end fixed on the unlocking assembly by buckling the unlocking assembly, the other end of the pull rope is fixed on the clamping wheel, so that the clamping wheel rotates, the lug rotates to enable the lug to rotate, the lug rotates to be abutted with the rotating piece on the rotating path and further push the rotating piece to rotate, the rotating piece can drive the second lock hook to deflect to one side, so that the clamped second lock hook and the first lock hook are in a separation state, unlocking is completed, after unlocking is completed, the handle frame is influenced by dead weight and can rotate towards the rear wheel frame and drive the first connecting rod to rotate, the first connecting rod rotates to enable the sliding piece to slide from one end of the sliding groove to the other end, the sliding piece can drive the second connecting rod hinged with the sliding piece to rotate, the rotating second connecting rod drives the front wheel frame to rotate towards the rear wheel frame, and the folding mechanism is folded, so that the parent can not need to bend or squat down and then unlock the control mechanism, and the child can be folded manually, and folding operation can be completed.

Drawings

FIG. 1 is a schematic view of a stroller according to an embodiment of the present utility model;

FIG. 2 is a schematic structural view of a folding mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing a folded state of a folding mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a locking device according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the locking device according to the embodiment of the present utility model in a locked state;

FIG. 6 is a schematic view of a locking device according to an embodiment of the present utility model in an unlocked state;

FIG. 7 is a schematic view of a card wheel according to an embodiment of the utility model;

FIG. 8 is a schematic diagram of an unlocking assembly according to an embodiment of the present utility model;

FIG. 9 is an exploded view of an unlocking assembly of an embodiment of the present utility model;

FIG. 10 is a schematic diagram of a first roller set and a second roller set according to an embodiment of the present utility model;

fig. 11 is an exploded view of a first roller set and a second roller set according to an embodiment of the utility model.

Reference numerals illustrate:

1. a baby stroller; 11. a cushion; 12. a folding mechanism; 2. a handle frame; 3. a front wheel frame; 31. a front wheel support; 32. a first roller set; 33. a second roller set; 34. a mounting base; 35. a first roller bracket; 36. a pin shaft; 37. a damping spring; 38. a front roller; 39. a rotation shaft; 4. a rear wheel vehicle frame; 41. a sliding groove; 42. a rear wheel bracket; 43. a third roller set; 44. a fourth roller set; 45. a second roller bracket; 46. a rear roller; 5. a connection assembly; 51. a rotor body; 52. a first set; 53. a second set; 54. a third set; 6. a sliding assembly; 61. a slider; 62. a first latch hook; 7. a connecting rod assembly; 71. a first link; 72. a second link; 8. a locking device; 81. unlocking the assembly; 811. unlocking the sleeve; 812. unlocking the push button; 813. a through groove; 814. a fixing member; 815. a second safety push button; 816. a push button body; 817. a return spring; 817. a mounting column; 82. a pull rope; 83. a clamping wheel; 831. a bump; 84. a rotating member; 85. and a second latch hook.

Detailed Description

The utility model will be further described with reference to the drawings and the specific embodiments.

As shown in fig. 1, a stroller 1 according to an embodiment of the present utility model includes a seat cushion 11 and a folding mechanism 12, where the seat cushion 11 is fixedly disposed on the folding mechanism 12.

As shown in fig. 2 to 11, the folding mechanism 12 of the stroller 1 according to the embodiment of the present utility model includes a handle frame 2, a front wheel frame 3, a rear wheel frame 4, a connecting assembly 5, a sliding assembly 6, a link assembly 7, and a locking device 8. The rear wheel frame 4 is provided with a slide groove 41; the connecting assembly 5 comprises a rotating wheel main body 51, a first sleeve 52, a second sleeve 53 and a third sleeve 54 which are arranged in different directions of the rotating wheel main body 51, wherein the first sleeve 52 is hinged with the front wheel frame 3, the second sleeve 53 is fixedly connected with the rear wheel frame 4, and the third sleeve 54 is hinged with the handle frame 2; the sliding component 6 comprises a sliding piece 61 and a first lock hook 62, the sliding piece 61 is fixedly connected with the first lock hook 62, and the sliding piece 61 is connected with the sliding groove 41 in a sliding manner; the link assembly 7 includes a first link 71 and a second link 72, one end of the first link 71 is hinged with the handle frame 2, the other end of the first link 71 is hinged with the sliding member 61, one end of the second link 72 is hinged with the front wheel frame, the other end of the second link 72 is hinged with the sliding member 61, the locking device 8 includes an unlocking assembly 81, a pull rope 82, a clamping wheel 83, a rotating member 84 and a second locking hook 85, the unlocking assembly 81 is arranged in the handle frame 2, the pull rope 82 is arranged in the handle frame 2, one end of the pull rope 82 is connected with the unlocking assembly 81, the other end of the pull rope 82 is connected with the clamping wheel 83, the clamping wheel 83 is arranged in the rotating wheel main body 51, the clamping wheel 83 is provided with a bump 831, one end of the rotating member 84 is arranged in a rotating path of the bump 831, the other end of the rotating member 84 is hinged with the rear wheel frame 4 and is fixedly connected with the second locking hook 85, and the second locking hook 85 can be mutually clamped or separated with the first locking hook 62 so as to be locked or unlocked.

In this embodiment, a parent can pull the pull rope 82 with one end fixed on the unlocking component 81 by fastening the unlocking component 81, because the other end of the pull rope 82 is fixed on the clamping wheel 83, the clamping wheel 83 rotates to rotate the protruding block 831, the protruding block 831 rotates to abut against the rotating member 84 on the rotating path and further push the rotating member 84 to rotate, the rotating member 84 drives the second latch hook 85 to deflect to one side, so that the clamped second latch hook 85 and the first latch hook 62 become in a disengaged state, unlocking is completed, after unlocking is completed, the handle 2 is influenced by dead weight and can rotate towards the rear wheel frame 4, the first link 71 rotates, the sliding member 61 slides from one end of the sliding groove 41 to the other end, the sliding member 61 drives the second link 72 hinged with the sliding member 61 to rotate, the rotating second link 72 drives the front wheel frame 3 to rotate towards the rear wheel frame 4, the folding mechanism 12 is completed, the child can be folded without bending or dropping, the folding operation is controlled, and the child can be folded manually, so that the child can be folded manually, and the child can be folded.

Specifically, the unlocking assembly 81 includes an unlocking sleeve 811 and an unlocking push button 812, the unlocking sleeve 811 is sleeved on the handle frame 2, the unlocking sleeve 811 is provided with a through groove 813, the unlocking push button 812 is slidably connected to the through groove 813, the unlocking push button 812 is provided with a fixing piece 814, and the fixing piece 814 penetrates through the through groove 813 and a through hole of the handle frame 2 to be fixedly connected with the pull rope 82.

Because stay cord 82 sets up in handle frame 2, consequently, unlocking sleeve 811 is provided with logical groove 813, thereby can make the mounting 814 of unlocking push button 812 fix with stay cord 82, set up stay cord 82 in handle frame 2 and make the outward appearance more brief, can avoid the foreign object to the influence of stay cord 82 when pulling simultaneously, unlock folding mechanism 12 smoothly, unlocking push button 812 sliding connection is in logical groove 813, unlocking push button 812 can slide along logical groove 813, realize the pulling to stay cord 82, thereby make stay cord 82 pull card wheel 83 rotate, accomplish the breaking away from of first latch hook 62 and second latch hook 85.

In some embodiments, the unlocking assembly 81 further includes two safety push buttons 815, the two safety push buttons 815 include a push button body 816 and a return spring 817, an end of the push button body 816 abuts against the unlocking push button 812, the push button body 816 is hinged to the unlocking sleeve 811 through a mounting post 817, and the return spring 817 is disposed inside the push button body 816.

Because the end of the push button body 816 is abutted with the unlocking push button 812, the parent cannot push the unlocking push button 812, and the push button body 816 needs to be pushed, so that after the push button body 816 rotates to one side, the parent can push the unlocking push button 812, and meanwhile, the reset spring 817 can reset the push button body 816. Therefore, by arranging the two safety push buttons 815, the parents can be prevented from mistakenly touching the unlocking push buttons 812 to cause the baby cart 1 to unlock and fold so as to cause damage to the baby.

As shown in fig. 2, 10 and 11, the front wheel frame 3 includes a front wheel support 31, a first roller set 32 and a second roller set 33, the front wheel support 31 is U-shaped, the upper left end and the upper right end of the front wheel support 31 are hinged with two first sleeves 52, the first roller set 32 and the second roller set 33 are respectively arranged at the lower left end and the lower right end of the front wheel support 31, the first roller set 32 and the second roller set 33 each include a mounting base 34 and a first roller support 35, the mounting base 34 is mounted on the front wheel support 31 through a rotating shaft 39, a pin shaft 36 is horizontally arranged in the first roller support 35, the first roller support 35 is hinged with the mounting base 34 through the pin shaft 36, a damping spring 37 is arranged between the mounting base 34 and the first roller support 35, and the end of the first roller support 35 is provided with a front roller 38.

Because the mounting base 34 is mounted on the front wheel bracket 31 through the rotating shaft 39, the mounting base 34 can perform all-round rotation of the horizontal plane, thereby facilitating the steering of the stroller 1 and being flexible in steering. Because the first roller support 35 is hinged with the mounting base 34 through the pin shaft 36, the mounting base 34 is connected with the first roller support 35 through the damping spring 37, the micro-amplitude elastic swinging of the roller support is realized through the cooperation of the pin shaft 36 and the damping spring 37, the vibration is buffered, the transmission of the vibration is reduced, the moving comfort is improved, and the application range is wide. Further, by hinging the left upper end and the right upper end of the front wheel bracket 31 to the two first sleeves 52, respectively, the front wheel bracket 31 can be folded and unfolded by rotating about the first sleeves 52.

Specifically, the rear wheel frame 4 includes a rear wheel support 42, a third roller set 43 and a fourth roller set 44, the rear wheel support 42 is H-shaped, the sliding groove 41 is disposed on the rear wheel support 42, the upper left end and the upper right end of the rear wheel support 42 are fixedly connected with two second sleeves 53, the third roller set 43 and the fourth roller set 44 are disposed at the lower left end and the lower right end of the rear wheel support 42, the third roller set 43 and the fourth roller set 44 include a second roller support 45 and a rear roller 46, the second roller support 45 is fixedly connected with the rear wheel support 42, and the second roller support 45 is rotationally connected with the rear roller 46.

Through setting up rear wheel support 42 to the bearing that H style of calligraphy can be fine, upper left end and the upper right end of rear wheel support 42 are respectively with two second external member 53 fixed connection simultaneously, when folding mechanism 12 receives, front wheel support 31 and handle frame 2 all can receive towards rear wheel support 42. The third roller group 43 and the fourth roller group 44 are respectively disposed at the left lower end and the right lower end of the rear wheel bracket 42, so as to be matched with the first roller group 32 and the second roller group 33, so that the stroller 1 can move on the ground.

Specifically, the handle frame 2 is U-shaped, and the left lower end and the right lower end of the handle frame 2 are hinged to two third sleeves 54, respectively.

The handle frame 2 is arranged in a U shape, so that a user can conveniently hold and push the baby stroller 1, and meanwhile, the left lower end and the right lower end of the handle frame 2 are respectively hinged with the two third sleeve members 54, so that the handle frame 2 can be folded and unfolded by taking the third sleeve members 54 as the shaft.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.

Claims (7)

1. A folding mechanism of a stroller, comprising:

a handle frame;

a front wheel frame;

a rear wheel frame provided with a sliding groove;

the connecting assembly comprises a rotating wheel main body, and a first sleeve, a second sleeve and a third sleeve which are arranged in different directions of the rotating wheel main body, wherein the first sleeve is hinged with the front wheel frame, the second sleeve is fixedly connected with the rear wheel frame, and the third sleeve is hinged with the handle frame;

the sliding assembly comprises a sliding piece and a first lock hook, wherein the sliding piece is fixedly connected with the first lock hook and is connected with the sliding groove in a sliding manner;

the connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is hinged with the handle frame, the other end of the first connecting rod is hinged with the sliding piece, one end of the second connecting rod is hinged with the front wheel frame, the other end of the second connecting rod is hinged with the sliding piece,

the locking device comprises an unlocking component, a pull rope, a clamping wheel, a rotating piece and a second lock hook, wherein the unlocking component is arranged on the handle frame, the pull rope is arranged in the handle frame, one end of the pull rope is connected with the unlocking component, the other end of the pull rope is connected with the clamping wheel, the clamping wheel is arranged in the rotating wheel main body, the clamping wheel is provided with a protruding block, one end of the rotating piece is arranged on a rotating path of the protruding block, the other end of the rotating piece is hinged with the rear wheel frame and is fixedly connected with the second lock hook, and the second lock hook and the first lock hook can be mutually clamped or separated to be locked or unlocked.

2. The folding mechanism of claim 1, wherein the unlocking assembly comprises an unlocking sleeve and an unlocking push button, the unlocking sleeve is sleeved on the handle frame, the unlocking sleeve is provided with a through groove, the unlocking push button is slidably connected to the through groove, the unlocking push button is provided with a fixing piece, and the fixing piece penetrates through the through groove and a perforation of the handle frame to be fixedly connected with the pull rope.

3. The folding mechanism of claim 2, wherein the unlocking assembly further comprises two safety push buttons, the two safety push buttons comprise a push button body and a return spring, the end portion of the push button body is abutted against the unlocking push button, the push button body is hinged to the unlocking sleeve through a mounting post, and the return spring is arranged inside the push button body.

4. The folding mechanism of claim 1, wherein the front wheel frame comprises a front wheel bracket, a first roller group and a second roller group, the front wheel bracket is U-shaped, the left upper end and the right upper end of the front wheel bracket are respectively hinged with the two first external members, the first roller group and the second roller group are respectively arranged at the left lower end and the right lower end of the front wheel bracket, the first roller group and the second roller group respectively comprise a mounting base and a first roller bracket, the mounting base is mounted on the front wheel bracket through a rotating shaft, a pin shaft is horizontally arranged in the first roller bracket, the first roller bracket is hinged with the mounting base through the pin shaft, a damping spring is arranged between the mounting base and the first roller bracket, and the end part of the first roller bracket is provided with a front roller.

5. The folding mechanism of claim 1, wherein the rear wheel frame comprises a rear wheel bracket, a third roller group and a fourth roller group, the rear wheel bracket is H-shaped, the sliding groove is formed in the rear wheel bracket, the left upper end and the right upper end of the rear wheel bracket are fixedly connected with the two second external members respectively, the third roller group and the fourth roller group are respectively arranged at the left lower end and the right lower end of the rear wheel bracket, the third roller group and the fourth roller group respectively comprise a second roller bracket and a rear roller, the second roller bracket is fixedly connected with the rear wheel bracket, and the second roller bracket is connected with the rear roller through a rotating shaft.

6. The folding mechanism of claim 1, wherein the handle frame is U-shaped, and a left lower end and a right lower end of the handle frame are respectively hinged with the two third sleeves.

7. A stroller comprising a seat cushion and a folding mechanism according to any one of claims 1 to 6, wherein the seat cushion is fixedly arranged on the folding mechanism.

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