CN220001361U

CN220001361U - Foldable baby walker

Info

Publication number: CN220001361U
Application number: CN202321067475.3U
Authority: CN
Inventors: 李政; 李宇光; 汤华龙; 李会杰; 黄百胜
Original assignee: Zhejiang Deqing Jiusheng Vehicle Industry Co ltd
Current assignee: Zhejiang Deqing Jiusheng Vehicle Industry Co ltd
Priority date: 2023-05-04
Filing date: 2023-05-04
Publication date: 2023-11-14
Anticipated expiration: 2033-05-04

Abstract

The utility model relates to a foldable baby walker which comprises a main frame, a front wheel, a rear wheel and a handlebar assembly, wherein the front wheel, the rear wheel and the handlebar assembly are arranged on the frame; the front wheel is arranged on a front fork at the lower part of the front end of the front frame, and the rear wheel is arranged on a rear fork at the rear end of the rear frame; the front end of the pedal frame is fixedly connected with the front frame, the pedal frame is hinged with the rear frame, the main frame is in a folded state and an unfolded state, in the unfolded state, the front wheels and the rear wheels are relatively far away, and the pedal frame limits the rear frame from the upper side; in the folded state, the front and rear wheels are relatively close; the connecting part of the rear frame and the pedal frame is provided with a locking piece, and the rear frame can drive the rear wheel to rotate towards one side close to the front wheel under the unlocking state of the locking piece. The foldable arrangement of the frame is realized through the structure, and the structure is simple.

Description

Foldable baby walker

Technical Field

The utility model relates to the technical field of walker, in particular to a foldable walker for children.

Background

The bicycle, scooter and walker among the prior art generally include main frame and install at the front wheel of main frame front side and install the rear wheel at main frame rear portion, and each part rigid connection of main frame is in the above-mentioned structure, and when not needing to use, the vehicle occupation space is great, is difficult for transport and deposits. Particularly for larger vehicle types like bicycles or two-wheeled walkers, the wheels are not easy to fold.

Disclosure of Invention

In order to solve the above problems, the present utility model provides a foldable walker for children, which has a frame that can be folded for easy transportation and storage, and has a simple folding structure and convenient operation.

A folding baby walker comprises a main frame, a front wheel, a rear wheel and a handlebar assembly, wherein the front wheel, the rear wheel and the handlebar assembly are arranged on the frame; the front wheel is arranged on a front fork at the lower part of the front end of the front frame, and the rear wheel is arranged on a rear fork at the rear end of the rear frame; the front end of the pedal frame is fixedly connected with the front frame, the pedal frame is hinged with the rear frame, the main frame is in a folded state and an unfolded state, in the unfolded state, the front wheels and the rear wheels are relatively far away, and the pedal frame limits the rear frame from the upper side; in the folded state, the front and rear wheels are relatively close; the connecting part of the rear frame and the pedal frame is provided with a locking piece, and the rear frame can drive the rear wheel to rotate towards one side close to the front wheel under the unlocking state of the locking piece.

Preferably, the locking piece comprises a locking seat and a locking pin, the locking seat is arranged on the pedal frame, the locking pin is arranged on the locking seat in a telescopic way, a pin hole for the locking pin to pass through is formed in the pedal frame, a locking part matched with the locking pin is arranged at the front end of the rear frame, in a main frame unfolding state, the locking pin stretches out and is matched with the locking part to limit the rear frame from the lower part, and the locking piece retracts to release the limit of the rear frame.

Preferably, the locking part is a lock tongue protruding to the front side at the front end of the rear frame; or the locking part is a locking hole matched with the locking piece, and the limit of the rear frame relative to the pedal frame in the rotation direction is realized through the matching of the locking piece and the locking hole.

Preferably, the locking piece further comprises an elastic piece, wherein the elastic piece is arranged on the locking seat and stretches elastically along with stretching of the positioning pin.

Preferably, the handlebar assembly comprises a handlebar stem connected with the faucet, handlebar shafts pivoted with two ends of the handlebar stem, a handlebar tube axially fixed at the outer end of the handlebar shaft, and a connecting tube sleeved outside the handlebar tube and screwed with the end part of the handlebar stem, wherein the handlebar shaft is movably connected with the handlebar stem when the connecting tube is screwed out of the handlebar stem.

Preferably, a spring is arranged in the connecting pipe, an outer bulge is arranged on the surface of the handle shaft, and the outer end of the spring is abutted against the outer bulge, so that the handle shaft is pushed to move outwards along the axial direction in the process of screwing out the connecting pipe from the handle shaft.

Preferably, grooves are formed at two ends of the handle bar, at least one opening extending along the axial direction is formed at the side part of the groove, and a pivot is arranged on the handle bar near the bottom of the opening in a penetrating manner; the inner end of the handle shaft penetrates into the groove and is provided with a perforation, and the pivot shaft vertically penetrates through the perforation and is fixed with the handle cross so that the handle shaft rotates around the pivot shaft along the opening.

Preferably, the bicycle pedal comprises a seat, wherein the rear end of the pedal frame is provided with an upward extending supporting tube, and the seat is arranged in the supporting tube in a lifting manner through a seat rod.

By adopting the structure, the main frame comprises the front frame, the rear frame and the pedal frame, the pedal frame is connected with the front frame and the rear frame, the front frame is hinged with the pedal frame, the rear frame is hinged with the pedal frame, or the front frame and the rear frame are respectively hinged with the pedal frame, so that the front frame and/or the rear frame can be adjusted to drive the front wheel and the rear wheel to be relatively close to or far away from each other, and the switching of the unfolding state or the folding state of the vehicle can be realized.

Drawings

FIG. 1 is a schematic view of the structure of the utility model in its unfolded state (not shown in the seat);

FIG. 2 is a schematic view of the folded state of the present utility model;

FIG. 3 is a schematic structural view of a main frame;

FIG. 4 is a schematic view of the main frame at another angle;

FIG. 5 is a schematic view of a locking structure of the locking member;

fig. 6 is an exploded view of the handlebar.

Reference numerals:

the bicycle comprises a main frame 1, a front frame 11, a rear frame 12, a pedal frame 13, a front wheel 2, a rear wheel 3, a handle bar assembly 4, a handle bar 41, a groove 411, a connecting tube 42, a handle shaft 43, an outer protrusion 431, a handle tube 44, a locking piece 5, a locking seat 51 and a locking pin 52.

Detailed Description

Embodiments of the present utility model are described in detail below.

This embodiment provides a folding child walker comprising a main frame 1, and front wheels 2, rear wheels 3 and handlebar assemblies 4 mounted to the frame. As shown in fig. 3 to 4, the main frame 1 includes a front frame 11, a rear frame 12, and a pedal frame 13; the front wheel 2 is arranged on a front fork at the lower part of the front end of the front frame 11, and the rear wheel 3 is arranged on a rear fork at the rear end of the rear frame 12; the front end of the pedal frame 13 is fixedly connected with the front frame 11, and the pedal frame 13 is hinged with the rear frame 12, so that the rear frame 12 and the rear wheel 3 can integrally rotate relative to the pedal frame 13. The main frame 1 has a folded state and an unfolded state, as shown in fig. 1, in the unfolded state, the front wheels are relatively far away from the rear wheels, and the pedal frame 13 limits the rear frame 12 from above; as shown in fig. 2, in the folded state, the front and rear wheels are relatively close; in this embodiment, as shown in fig. 4, the front end of the pedal frame 13 is fixedly connected with the front frame 11, the rear frame 12 integrally comprises a connecting pipe 42 and a rear fork arranged at the rear side of the connecting pipe 42, the connecting pipe 42 is hinged with the pedal frame 13, the connecting part of the pedal frame 13 and the rear frame 12 is in a frame structure with an opening at the lower part, and the rear frame 12 can integrally rotate downwards relative to the pedal frame 13 and drive the rear wheel 3 to approach the front wheel 2 so as to realize the folding of the vehicle; when the rear frame 12 drives the rear wheel 3 to rotate to a certain position to the side far away from the front wheel 2, the pedal frame 13 can limit the rear frame 12 from above, and at this time, the vehicle is in a unfolded state. In the riding state, the pedal frame 13 and the rear wheels 3 of the front wheels 2 receive a force from above, so that the vehicle can be held in the deployed state.

Further, in order to keep the vehicle in the unfolded state and prevent the vehicle from folding when folding is not needed, a locking piece 5 is arranged at the joint of the rear frame 12 and the pedal frame 13, and in the locking state of the locking piece 5, the locking piece 5 connects the rear frame 12 and the pedal frame 13 to lock the rear frame 12 and the pedal frame 13 in the unfolded state; in the unlocked state of the locking member 5, the rear frame 12 can drive the rear wheel 3 to rotate toward the side close to the front wheel 2.

Referring to fig. 5, the locking member 5 includes a locking seat 51 and a locking pin 52, the locking seat 51 is mounted on the pedal frame 13, the locking pin 52 is telescopically disposed on the locking seat 51, a pin hole for the locking pin 52 to pass through is disposed on the pedal frame 13, a locking portion matched with the locking pin 52 is disposed on the rear frame 12, and in the unfolded state of the main frame 1, the locking pin 52 extends out to cooperate with the locking portion to limit the front frame 11 or the rear frame 12 from below, and the locking member 5 retracts to release the limit on the front frame 11 or the rear frame 12. In the embodiment, the locking portion is a locking tongue which is disposed on the rear frame 12 and cooperates with the locking pin 52, and in the locked state, the locking pin 52 extends out to abut against the locking tongue, and the locking pin 52 provides a limit from below for the locking tongue, so that the rear frame 12 and the pedal frame 13 are locked. Or the locking part is a locking hole matched with the locking piece 5, and the limit of the front frame 11 or the rear frame 12 relative to the pedal frame 13 in the rotation direction is realized through the matching of the locking piece 5 and the locking hole. The locking structure in the structure is simple, the switching operation of the locking state and the unlocking state is also very simple, the operation is convenient, and the production cost of the vehicle is reduced. Preferably, the locking member 5 further includes an elastic member disposed on the locking seat 51 and elastically expanding and contracting with the expansion and contraction of the positioning pin. When the locking pin 52 is switched from the extended state to the contracted state by the external force, the elastic member is compressed, and when the external force is removed and the main frame 1 is switched to the extended state, the pin hole is aligned with the locking portion, and the locking pin 52 is extended under the action of the elastic member to realize automatic locking. Further to facilitate the actuation of the locking pin 52, a pull ring is provided at the end of the locking pin 52 in this embodiment to actuate the locking pin 52.

In order to further reduce the occupied space of the folded vehicle, so as to facilitate packing and carrying. As shown in fig. 6, the handlebar assembly 4 in this embodiment adopts a foldable structure. Specifically, the handle bar assembly 4 includes a handle bar 41 connected to the faucet, a handle shaft 43 pivotally connected to both ends of the handle bar 41, a handle tube 44 axially fixed to an outer end of the handle shaft 43, and a connecting tube 42 fitted to an outer side of the handle tube 44 and screwed to an end of the handle bar 41, wherein the handle shaft 43 is movably connected to the handle bar 41 when the connecting tube 42 is screwed out of the handle bar 41. In the embodiment, the end of the cross member 41 is provided with an external thread, and the connection tube 42 is provided with an internal thread matching the external thread. Specifically, the two ends of the handle bar 41 are provided with a groove 411, the side of the groove 411 is provided with at least one opening extending along the axial direction, the handle bar 41 near the bottom of the opening is provided with a pair of through holes along the direction vertical to the axial direction, the inner wall of each through hole is threaded, the pivot penetrates through the through holes and is screwed to the handle bar 41, and in other embodiments, the pivot and the handle bar 41 are integrally formed, welded or tightly matched and fixed; the inner end of the handle shaft 43 extends into the recess 411 and is provided with a through hole through which the pivot shaft passes vertically and is secured to the handle bar 41 so that the handle shaft 43 pivots along the opening.

In order to avoid the free fall of the handle shaft 43 injuring the child when the connecting tube 42 is unscrewed from the handle bar 41, the handlebar assembly 4 further comprises a spring which gives the handle shaft 43 an outward pushing force during unscrewing of the connecting tube 42. Specifically, the inner wall of the connecting pipe 42 is formed with a step surface, the outer surface of the handle shaft 43 is provided with an annular outer protrusion 431, the inner end of the spring abuts against the step surface, and the outer end abuts against the outer protrusion 431. In this embodiment, when the connecting tube 42 is unscrewed, the handle shaft 43 is abutted by the spring, and does not fall freely, so that the folding can be performed by applying assistance by an operator, unlike the stretching folding adopted by the handlebar assembly 4 in the related art, the folding accident caused by the accidental touching of the child can be greatly avoided.

Therefore, in the scheme, the main frame 1 and the handlebar assembly 4 can be respectively folded, so that the overall occupied space of the vehicle is reduced.

Optionally, the walker further comprises a seat, the rear end of the pedal frame 13 is provided with an upward extending support tube, and the seat is arranged in the support tube in a lifting manner through a seat rod. The seat is provided to provide different riding attitudes to the user, and the user can adjust the seat height according to his own needs. The liftable locking structure of the seat is a conventional technical means in the art and will not be described herein.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The foldable baby walker comprises a main frame, a front wheel, a rear wheel and a handlebar assembly, wherein the front wheel, the rear wheel and the handlebar assembly are arranged on the frame; the front wheel is arranged on a front fork at the lower part of the front end of the front frame, and the rear wheel is arranged on a rear fork at the rear end of the rear frame; the front end of the pedal frame is fixedly connected with the front frame, the pedal frame is hinged with the rear frame, the main frame is in a folded state and an unfolded state, in the unfolded state, the front wheels and the rear wheels are relatively far away, and the pedal frame limits the rear frame from the upper side; in the folded state, the front and rear wheels are relatively close; the connecting part of the rear frame and the pedal frame is provided with a locking piece, and the rear frame can drive the rear wheel to rotate towards one side close to the front wheel under the unlocking state of the locking piece.

2. The foldable baby walker as claimed in claim 1, wherein the locking member comprises a locking seat and a locking pin, the locking seat is mounted on the pedal frame, the locking pin is telescopically disposed on the locking seat, a pin hole for the locking pin to pass through is formed in the pedal frame, a locking portion matched with the locking pin is formed in the rear frame, in the unfolded state of the main frame, the locking pin extends out to be matched with the locking portion to limit the rear frame from below, and the locking member is retracted to release the limit of the rear frame.

3. The foldable baby walker of claim 2 wherein the locking means is a tongue provided on the rear frame that mates with the locking pin; or the locking part is a locking hole matched with the locking piece, and the limit of the rear frame relative to the pedal frame in the rotation direction is realized through the matching of the locking piece and the locking hole.

4. The foldable baby walker of claim 2 wherein the locking means further comprises resilient means disposed on the locking base for resiliently flexing in response to flexing of the locating pin.

5. The foldable baby walker of claim 1 wherein the handle bar assembly comprises a handle bar connected to the tap, a handle bar pivotally connected to both ends of the handle bar, a handle tube axially fixed to the outer end of the handle bar, and a connecting tube sleeved outside the handle tube and screwed to the end of the handle bar, wherein the handle bar is movably connected to the handle bar when the connecting tube is screwed out of the handle bar.

6. The foldable baby walker of claim 5 wherein the connecting tube is internally provided with a spring, the handle shaft surface is provided with an outer projection, and the outer end of the spring abuts against the outer projection to urge the handle shaft axially outwardly during unscrewing of the connecting tube from the handle shaft.

7. The foldable baby walker of claim 5 wherein the handle bars are provided with grooves at each end, the sides of the grooves being provided with at least one axially extending opening, the handle bars adjacent the bottom of the opening being provided with pivot shafts extending therethrough; the inner end of the handle shaft penetrates into the groove and is provided with a perforation, and the pivot shaft vertically penetrates through the perforation and is fixed with the handle cross so that the handle shaft rotates around the pivot shaft along the opening.

8. The foldable baby walker of claim 1 further comprising a seat, wherein the rear end of the pedal frame is provided with an upwardly extending support tube, and wherein the seat is disposed in the support tube in a liftable manner by means of a seat bar.