CN213974151U - Handle reversing baby stroller - Google Patents

Abstract

The utility model discloses a handle reversing baby stroller, which comprises a handle rod, a front foot set, a rear foot set, a big joint and the like, wherein a driving block is arranged on the handle rod, a front ejector block close to the rear foot set and a rear ejector block close to the front foot set are arranged on the big joint, the rear ejector block is connected with a rear lock component on a rear wheel, and the front ejector block is connected with a front lock component on a front wheel; therefore, when the handle rod rotates around the large joint and is positioned above the rear wheel, the driving block is driven to push the front ejection block to slide backwards to unlock the front lock assembly, the rear wheel is still in a positioning state, and the front wheel rotates universally; when the handle rod rotates around the large joint and is positioned above the front wheel, the driving block is driven to push the rear ejection block to slide forwards to unlock the rear lock assembly, and the front wheel is still in a positioning state while the rear wheel rotates universally. The improved baby stroller has the advantages of simple structural design, convenience in operation, good use stability and the like, and greatly meets the purchasing requirement of the market.

Description

Handle reversing baby stroller

Technical Field

The utility model relates to a baby stroller, in particular to a handle reversing baby stroller.

Background

The baby stroller is mainly a baby product which is used by parents to push a baby when the baby goes out and takes, and generally comprises a handle rod, a front foot set, a rear foot set, a large joint and the like, wherein the lower end of the front foot set is provided with a front wheel and a front lock assembly for locking the universal rotation of the front wheel, the lower end of the rear foot set is provided with a rear wheel and a rear lock assembly for locking the universal rotation of the rear wheel, and the lower end of the handle rod, the upper end of the front foot set and the upper end of the rear foot set are all hinged on the large joint, so that the handle rod can be respectively positioned above the rear wheel or the front wheel by rotating around the large joint, the baby stroller can be pushed to use in a front and rear reversing way, and the whole baby stroller can be folded and stored quickly. Meanwhile, when the handle rod rotates in a reversing way to be above the front wheel or above the rear wheel for use, in order to facilitate pushing, the wheels at the front part in the pushing direction are required to be in a universal rotating state, and the wheels at the rear part in the pushing direction are in a positioning locking state; therefore, structural designs aiming at the aspect are multiple in the market at present, but most of the structural designs utilize the height difference characteristic of the cam to drive the front lock assembly and the rear lock assembly to be locked or unlocked, and the defects of complex structural design, troublesome operation, poor use stability and the like exist in actual use; in addition, with the continuous expansion of the market of baby products, consumers also want manufacturers to provide more baby strollers with different structures and operation modes to meet the market purchasing requirements.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art's defect and provide a hand (hold) switching-over formula baby's shallow that structural design is simple, convenient operation, stability in use are good.

The technical problem of the utility model is realized through following technical scheme:

a handle reversing baby stroller comprises a handle rod, a front foot group, a rear foot group and a large joint; the lower end of the handle rod, the upper end of the front foot group and the upper end of the rear foot group are hinged on the large joint; the lower end of the front foot set is provided with a front wheel and a front lock assembly for locking the front wheel to rotate universally, the lower end of the rear foot set is provided with a rear wheel and a rear lock assembly for locking the rear wheel to rotate universally, the handle rod is provided with a driving block, the large joint is provided with a front ejector block close to the rear foot set and a rear ejector block close to the front foot set, the front ejector block is connected with the front lock assembly, and the rear ejector block is connected with the rear lock assembly; the handle rod rotates around the large joint and is positioned above the rear wheel, and drives the driving block to push the front ejection block to slide backwards to unlock the front lock assembly, and the rear wheel is positioned while the front wheel rotates universally; the handle rod rotates around the large joint and is positioned above the front wheel, the driving block is driven to push the rear ejection block to slide forwards to unlock the rear lock assembly, and the front wheel is positioned and the rear wheel rotates universally.

The front ejector block and the rear ejector block are both positioned on the arc-shaped stroke trajectory line of the driving block.

The large joint is provided with an arc-shaped groove designed according to the stroke trajectory of the driving block; the driving block, the front ejector block and the rear ejector block are all arranged in the arc-shaped groove in a sliding mode, the front ejector block is arranged at the rear end of the arc-shaped groove close to the rear foot group, the rear ejector block is arranged at the front end of the arc-shaped groove close to the front foot group, and the driving block is driven by the handle rod to slide in the arc-shaped groove and respectively push the front ejector block to slide backwards or push the rear ejector block to slide forwards.

The front end of the arc-shaped groove is provided with a front positioning groove, the rear end of the arc-shaped groove is provided with a rear positioning groove, the driving block is driven by the handle rod to slide in the arc-shaped groove, the driving block pushes the front ejector block to slide backwards and enter the rear positioning groove, and the front lock assembly is unlocked; the driving block is driven by the handle rod to slide in the arc-shaped groove, the pushing back ejecting block slides forwards to enter the front positioning groove, and the back lock assembly is unlocked.

The arc-shaped groove is matched with the driving block to limit the reversing rotation stroke of the handle rod around the large joint, and the driving block controls the positioning of the rear wheel and the universal rotation of the front wheel or the positioning of the front wheel and the universal rotation of the rear wheel under the reversing rotation of the handle rod.

The lower end of the front foot set is provided with a front wheel seat for mounting a front wheel, a front lock assembly is arranged in the front wheel seat, and a front lock hole matched with the front lock assembly to lock the front wheel to rotate universally is arranged on the front wheel; the rear wheel seat that the rear leg group lower extreme be equipped with the confession rear wheel installation is equipped with the back lock subassembly in this rear wheel seat, be equipped with on the rear wheel and cooperate the universal rotatory back lockhole of back lock subassembly locking rear wheel.

The front lock assembly comprises a front lock pin movably arranged in the front wheel seat and a front elastic element for elastically pushing the lower end of the front lock pin into the front lock hole, and a front pull wire connected with each other is arranged between the upper end of the front lock pin and the front ejector block; the rear lock assembly comprises a rear lock pin movably arranged in the rear wheel seat and a rear elastic element for elastically pushing the lower end of the rear lock pin into the rear lock hole, and rear pull wires connected with each other are arranged between the upper end of the rear lock pin and the rear ejector block.

The front pull wire is hidden in the front foot group, and the rear pull wire is hidden in the rear foot group.

A reversing lock and a folding lock are arranged between the lower end of the handle rod and the large joint, the handle rod is controlled by the reversing lock to rotate around the large joint to be positioned above the rear wheel or rotate to be positioned above the front wheel, the driving block is controlled by the folding lock to be separated from the arc-shaped groove, the handle rod is separated from the reversing rotation stroke, and the front wheel and the rear wheel are positioned.

The handle rod is provided with a reversing pull sleeve, and the reversing pull sleeve can slide up and down along the handle rod to control the locking or unlocking of the reversing lock; the upper end of the handle rod is provided with a handrail rod which is installed in a hinged mode, the handrail rod is turned downwards and is folded on the handle rod, the folding lock is unlocked synchronously, and the folding lock controls the driving block to be separated from the arc-shaped groove.

Compared with the prior art, the utility model mainly provides a baby stroller which can respectively position and lock the front wheel and the rear wheel when reversing the handle bar, the structure mainly comprises a driving block arranged on the handle bar, a front top block close to the rear foot group and a rear top block close to the front foot group arranged on the big joint, the rear top block is connected with a rear lock component on the rear wheel, and the front top block is connected with a front lock component on the front wheel; therefore, when the handle rod rotates around the large joint and is positioned above the rear wheel, the driving block is driven to push the front ejection block to slide backwards to unlock the front lock assembly, the rear wheel is still in a positioning state, and the front wheel rotates universally; when the handle rod rotates around the large joint and is positioned above the front wheel, the driving block is driven to push the rear ejection block to slide forwards to unlock the rear lock assembly, and the front wheel is still in a positioning state while the rear wheel rotates universally. The improved baby stroller is obviously different from the traditional structure which respectively positions and locks the front wheel and the rear wheel by mainly utilizing the cam, has the advantages of simple structural design, convenient operation, good use stability and the like in actual use, and greatly meets the purchasing requirement of the market.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded perspective view of fig. 1.

Fig. 3 is a schematic sectional structure view at a large joint.

Fig. 4 is an exploded perspective view of a large joint.

FIG. 5 is a schematic cross-sectional view of the handlebar positioned rotationally above the rear wheel.

FIG. 6 is a schematic cross-sectional view of the handlebar positioned above the front wheel.

Fig. 7 is a cross-sectional structural view of the rear lock assembly unlocking the rear wheel.

Fig. 8 is a cross-sectional structural view of the front lock assembly locking the front wheel.

Fig. 9 is a schematic sectional view of the folded large joint of the stroller.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in fig. 1 to 9, 1 is a handle bar, 11 is a reversing pull sleeve, 12 is a driving block, 2 is a front foot group, 21 is a front wheel seat, 22 is a front wheel, 221 is a front lock hole, 3 is a rear foot group, 31 is a rear wheel seat, 32 is a rear wheel, 321 is a rear lock hole, 4 is a big joint, 41 is an arc-shaped groove, 411 is a front positioning groove, 412 is a rear positioning groove, 5 is an armrest bar, 6 is a front top block, 61 is a front pull wire, 7 is a rear top block, 71 is a rear pull wire, 8 is a front lock assembly, 81 is a front lock pin, 82 is a front elastic element, 9 is a rear lock assembly, 91 is a rear lock pin, 92 is a rear elastic element.

A handle reversing baby stroller is mainly used for parents to take a baby out conveniently to take the baby for pushing as shown in figures 1 and 2, and structurally comprises a handle rod 1, a front foot group 2, a rear foot group 3, a large joint 4 and the like.

The lower end of the handle rod 1, the upper end of the front foot group 2 and the upper end of the rear foot group 3 are hinged on the large joint 4, specifically, the lower end of the handle rod 1 is hinged in the middle of the large joint 4, the upper end of the front foot group 2 is hinged in the front of the large joint 4, and the upper end of the rear foot group 3 is hinged in the rear of the large joint 4.

Therefore, the handle rod 1 can rotate around the large joint 4 and is positioned above the rear wheel 32 or the front wheel 22 through the hinging, so that the reversing rotation operation of the handle rod 1 is realized, and the baby stroller can be conveniently pushed to be used in a front and rear reversing way.

The lower end of the front foot assembly 2 is provided with a front wheel seat 21 for installing a front wheel 22, a front lock assembly 8 is arranged in the front wheel seat, and a front lock hole 221 matched with the front lock assembly 8 to lock the front wheel 22 to rotate universally is arranged on the front wheel 22; the lower end of the rear leg group 3 is provided with a rear wheel seat 31 for mounting a rear wheel 32, a rear lock assembly 9 is arranged in the rear wheel seat, and a rear lock hole 321 which is matched with the rear lock assembly 9 to lock the rear wheel 32 to rotate universally is arranged on the rear wheel 32.

The handle rod 1 is provided with a driving block 12, when the handle rod 1 rotates around the large joint 4 in a reversing way, the driving block 12 can be driven to form an arc-shaped travel track line, and the specific structure is shown in fig. 3 and 4: the big joint 4 is provided with an arc-shaped groove 41 designed according to the stroke trajectory line of the driving block 12, and the driving block 12, the front ejector block 6 and the rear ejector block 7 which are installed in a sliding manner are arranged in the arc-shaped groove, namely the front ejector block 6 and the rear ejector block 7 are both positioned on the arc-shaped stroke trajectory line of the driving block 12; preceding kicking block 6 set up the arc wall rear end near back foot group 3, back kicking block 7 sets up the arc wall front end near preceding foot group 2, and back kicking block 7 is connected with back lock subassembly 9, preceding kicking block 6 is connected with preceding lock subassembly 8, still be equipped with preceding constant head tank 411 at arc wall 41 front end, arc wall 41 rear end is equipped with back constant head tank 412, and driving block 12 is located before, between the kicking block, and be brought the ability and slide in arc wall 41 by handle pole 1, that is to say that arc wall 41 cooperation driving block 12 has restricted handle pole 1 jointly around the switching-over rotation stroke of big joint 4.

The front lock assembly 8 comprises a front lock pin 81 which is movably arranged in the front wheel seat 21 in a lifting way and a front elastic element 82 which elastically pushes the lower end of the front lock pin to enter the front lock hole 221, a front pull wire 61 which is mutually connected is arranged between the upper end of the front lock pin 81 and the front top block 6, and the front pull wire is hidden in the front foot group 2; the rear lock assembly 9 comprises a rear lock pin 91 movably mounted in the rear wheel seat 31 and a rear elastic element 92 for elastically pushing the lower end of the rear lock pin 91 into the rear lock hole 321, a rear pull wire 71 connected with each other is arranged between the upper end of the rear lock pin 91 and the rear top block 7, and the rear pull wire is hidden in the rear foot group 3.

Therefore, when the handle rod 1 drives the driving block 12 to perform the reversing rotation operation, the driving block 12 can slide along the arc-shaped groove 41, and further push the front top block 6 to slide backwards into the rear positioning groove 412, and unlock the front lock assembly 8, that is, the backward slide of the front top block 6 pulls the front lock pin 81 through the front pull wire 61 to move upwards to separate from the front lock hole 221 by overcoming the pushing elasticity of the front elastic element 82, so that the rear wheel 32 is positioned and the front wheel 22 rotates universally, or the push the rear top block 7 slides forwards to enter the front positioning groove 411, and unlocks the rear lock assembly 9, that is, the forward slide of the rear top block 7 pulls the rear lock pin 91 through the rear pull wire 71 to move upwards to separate from the rear lock hole 321 by overcoming the pushing elasticity of the rear elastic element 92, so that the front wheel 22 is positioned and the rear wheel 32 rotates universally.

Meanwhile, a reversing lock and a folding lock are arranged between the lower end of the handle rod 1 and the large joint 4, the reversing lock mainly controls the handle rod 1 to rotate around the large joint 4 and be positioned above the rear wheel 32 or rotate and be positioned above the front wheel 22, the folding lock mainly controls the driving block 12 to be separated from the arc-shaped groove 41, the handle rod 1 is separated from the reversing rotation stroke, and the front wheel 22 and the rear wheel 32 are positioned.

In addition, the handle bar 1 is provided with a reversing pull sleeve 11, the reversing pull sleeve controls the locking or unlocking of the reversing lock by lifting and sliding along the handle bar 1, the upper end of the handle bar 1 is provided with a grab rail 5 which is installed in a hinged mode, the grab rail is turned downwards and folded on the handle bar 1, the folding lock can be unlocked synchronously, the folding lock controls the driving block 12 to be separated from the arc-shaped groove 41, and the common structure is that the driving block 12 is controlled to retract into the handle bar 1 and then separated from the arc-shaped groove 41.

The utility model discloses a concrete working process as follows: when the handle bar 1 is located above the rear wheel 32 and is locked by the reversing lock, the driving block 12 pushes the front top block 6 to slide backwards into the rear positioning groove 412, the front top block 6 pulls the front lock pin 81 to be separated from the front lock hole 221 through the front pull wire 61, at this time, the front wheel 22 is in a universal rotation state, but the rear top block 7 is not pushed by the driving block 12 to be contacted, that is, the rear top block 7 does not enter the front positioning groove 411, so that the pushing of the rear elastic element 92 enables the lower end of the rear lock pin 91 to be assembled in the rear lock hole 321, and the rear wheel 32 is still in a positioning state.

When the reversing pull sleeve 11 is pulled to slide upwards along the handle rod 1 to unlock the reversing lock, the handle rod 1 can rotate in a reversing manner to the position above the front wheel 22 and be locked again by the reversing lock, the driving block 12 is also driven by the handle rod 1 to slide along the arc-shaped groove 41 and push the rear ejector block 7 to slide forwards to enter the front positioning groove 411, the rear ejector block 7 can pull the rear lock pin 91 to be separated from the rear lock hole 321 through the rear pull wire 71, at the moment, the rear wheel 32 is in a universal rotation state, but because the driving block 12 is separated from the pushing of the front ejector block 6, namely, the front ejector block 6 is not pushed by the driving block 12 to be contacted, at the moment, under the pushing of the front elastic element 82, the lower end of the front lock pin 81 is newly assembled in the front locking hole 221, and the front ejector block 6 is also separated from the rear positioning groove 412, so the front wheel 22 is in a positioning state.

Therefore, the wheels on the same side with the handle rod 1 are in a positioning and locking state, and the wheels on the opposite side of the handle rod 1 are in a universal rotating state, so that the baby stroller can be pushed flexibly regardless of the direction change of the handle rod 1 to any position.

When the grab bar 5 is turned over downwards and gathered on the handle bar 1, the folding lock can be unlocked synchronously, the folding lock controls the driving block 12 to retract into the handle bar 1 to be separated from the arc-shaped groove 41, namely, the handle bar 1 is separated from the reversing rotation travel limit in the arc-shaped groove 41, as the driving block 12 is not pushed to contact with the front ejector block 6 and the rear ejector block 7, the front lock pin 81 enters the front lock hole 221 under the elastic pushing of the front elastic element 82, the rear lock pin 91 enters the rear lock hole 321 under the elastic pushing of the rear elastic element 92, and the front wheel 22 and the rear wheel 32 are positioned. At this time, just as the stroller is in the fully folded state as shown in fig. 9, the handle bar 1, the front leg set 2 and the rear leg set 3 are all rotated around the large joint 4 and closed, but it is ensured that the front and rear wheels are all positioned and locked, so that the folded stroller can stand.

The above description is only an embodiment of the present invention, and those skilled in the art should understand that any structural design similar to the embodiment is included in the protection scope of the present invention.

Claims (10)

1. A handle reversing baby stroller comprises a handle rod (1), a front foot set (2), a rear foot set (3) and a large joint (4); the lower end of the handle rod (1), the upper end of the front foot group (2) and the upper end of the rear foot group (3) are hinged on the large joint (4); the front wheel (22) and the front lock assembly (8) for locking the universal rotation of the front wheel are arranged at the lower end of the front foot set (2), the rear wheel (32) and the rear lock assembly (9) for locking the universal rotation of the rear wheel are arranged at the lower end of the rear foot set (3), the handlebar stem (1) is provided with a driving block (12), the large joint (4) is provided with a front ejector block (6) close to the rear foot set (3) and a rear ejector block (7) close to the front foot set (2), the front ejector block (6) is connected with the front lock assembly (8), and the rear ejector block (7) is connected with the rear lock assembly (9); the handle rod (1) rotates around the large joint (4) and is positioned above the rear wheel (32), and drives the driving block (12) to push the front ejection block (6) to slide backwards to unlock the front lock assembly (8), the rear wheel (32) is positioned, and the front wheel (22) rotates in a universal direction; the handle rod (1) rotates around the large joint (4) and is positioned above the front wheel (22) and drives the driving block (12) to push the rear ejection block to slide forwards to unlock the rear lock assembly (9), and the front wheel (22) is positioned and the rear wheel (32) rotates in a universal direction.

2. The stroller of claim 1, wherein said front top block (6) and said rear top block (7) are located on the arc-shaped path of travel of said driving block (12).

3. The stroller of claim 2, wherein the large joint (4) is provided with an arc-shaped slot (41) designed according to the path of the driving block (12); the driving block (12), the front jacking block (6) and the rear jacking block (7) are all arranged in the arc-shaped groove (41) in a sliding mode, the front jacking block (6) is arranged at the rear end of the arc-shaped groove close to the rear foot group (3), the rear jacking block (7) is arranged at the front end of the arc-shaped groove close to the front foot group (2), the driving block (12) is driven by the handle rod (1) to slide in the arc-shaped groove (41) and respectively push the front jacking block (6) to slide backwards or push the rear jacking block (7) to slide forwards.

4. The handle bar reversing type baby stroller according to claim 3, wherein the front end of the arc-shaped groove (41) is provided with a front positioning groove (411), the rear end of the arc-shaped groove (41) is provided with a rear positioning groove (412), the driving block (12) is driven by the handle bar (1) to slide in the arc-shaped groove (41) so as to push the front top block (6) to slide backwards into the rear positioning groove (412), and the front lock assembly (8) is unlocked; the driving block (12) is driven by the handle rod (1) to slide in the arc-shaped groove (41) and push the rear jacking block (7) to slide forwards to enter the front positioning groove (411), and the rear lock assembly (9) is unlocked.

5. The stroller of claim 3, wherein the arcuate slot (41) cooperates with the driving member (12) to limit the reversible rotation of the handle bar (1) about the large joint (4), and the driving member (12) is rotated in a direction opposite to the handle bar (1) to control the positioning of the rear wheel (32) and the front wheel (22) or the front wheel (22) and the rear wheel (32) to rotate in a direction opposite to the direction of rotation.

6. The handle bar reversing type baby stroller according to claim 1, wherein the lower end of the front leg assembly (2) is provided with a front wheel seat (21) for mounting the front wheel (22), a front lock assembly (8) is arranged in the front wheel seat, and the front wheel (22) is provided with a front lock hole (221) for locking the front wheel (22) to rotate universally by matching with the front lock assembly (8); the rear wheel seat (31) that confession rear wheel (32) installation is equipped with to rear foot group (3) lower extreme, be equipped with back lock subassembly (9) in this rear wheel seat, be equipped with on rear wheel (32) and cooperate back lock subassembly (9) to lock rear wheel (32) universal rotatory back lockhole (321).

7. The handle bar reversing baby stroller according to claim 6, wherein the front lock assembly (8) comprises a front lock pin (81) movably mounted in the front wheel seat (21) and a front elastic element (82) elastically pushing the lower end of the front lock pin into the front lock hole (221), and a front pull wire (61) connected with each other is arranged between the upper end of the front lock pin (81) and the front top block (6); the rear lock assembly (9) comprises a rear lock pin (91) movably mounted in the rear wheel seat (31) and a rear elastic element (92) for elastically pushing the lower end of the rear lock pin (91) into the rear lock hole (321), and rear pull wires (71) which are connected with each other are arranged between the upper end of the rear lock pin (91) and the rear ejector block (7).

8. The stroller as claimed in claim 7, wherein said front pull-cord (61) is hidden in said front leg assembly (2) and said rear pull-cord (71) is hidden in said rear leg assembly (3).

9. The stroller of claim 1, wherein a direction-changing lock and a folding lock are provided between the lower end of the handle bar (1) and the large joint (4), the direction-changing lock controls the handle bar (1) to rotate around the large joint (4) and to be positioned above the rear wheel (32) or to rotate around the large joint (4) and to be positioned above the front wheel (22), the folding lock controls the driving block (12) to be separated from the arc-shaped groove (41), the handle bar (1) is separated from the direction-changing rotation stroke, and the front wheel (22) and the rear wheel (32) are both positioned.

10. The baby stroller with handle reversing function according to claim 9, wherein the handle bar (1) is provided with a reversing pull sleeve (11) which can slide up and down along the handle bar (1) to control the locking or unlocking of the reversing lock; the upper end of the handle rod (1) is provided with a handrail rod (5) which is installed in a hinged mode, the handrail rod is turned downwards and is folded on the handle rod (1), the folding lock is unlocked synchronously, and the folding lock controls the driving block (12) to be separated from the arc-shaped groove (41).

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