CN111483506A

CN111483506A - Brake mechanism of baby carriage and baby carriage

Info

Publication number: CN111483506A
Application number: CN202010356145.0A
Authority: CN
Inventors: 马旭; 李丰
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-08-04

Abstract

The invention discloses a brake mechanism of a baby carriage and the baby carriage, wherein the baby carriage comprises a frame and a wheel assembly, the wheel assembly comprises a wheel seat connected with the frame and a wheel rotatably arranged on the wheel seat, the brake mechanism comprises a brake disc fixedly arranged on the wheel and a brake assembly arranged on the wheel seat, the brake assembly at least comprises a brake pad, the brake pad is an annular component which has two end parts and is elastic, the brake pad is annularly arranged on the circumferential outer side of the brake disc, a limiting structure used for limiting the brake pad in the circumferential direction is also arranged between the brake pad and the wheel seat, and when the brake mechanism is in a brake state, the brake pad deforms and is tightly held on the circumferential part of the outer side of the brake disc; when the brake mechanism is in the state of releasing the brake, the brake block is separated from the brake disc. The brake mechanism is simple in structure and convenient to operate, and can quickly realize braking to achieve the purpose of parking.

Description

Brake mechanism of baby carriage and baby carriage

Technical Field

The invention relates to a brake mechanism of a baby carriage and the baby carriage.

Background

The children's cart provides great convenience for people to carry small children for outdoor activities. In order to eliminate the potential safety hazard of the baby carriage during parking, the baby carriage is generally provided with a brake mechanism. In the prior art, a brake mechanism on a stroller generally comprises a brake rod and a brake disc with a plurality of brake grooves, braking can be realized by driving the brake rod to be inserted into the brake grooves through a driving mechanism, and braking can be released by driving the brake rod to be separated from the brake grooves. However, most of the brake mechanisms have a large number of lever members, a complicated structure, and inconvenient braking operation.

Disclosure of Invention

The invention aims to provide a brake mechanism of a baby carriage, which has a simple structure and is convenient to operate.

In order to achieve the purpose, the invention adopts the technical scheme that: a brake mechanism of a baby carrier comprises a frame and a wheel component arranged at the bottom of the frame, wherein the wheel component comprises a wheel seat connected with the frame, and a wheel rotatably mounted on the wheel seat through a wheel shaft, the brake mechanism comprises a brake disc fixedly arranged on the wheel, and a brake component arranged on the wheel seat, the brake component at least comprises a brake pad, wherein the brake pad is an annular component which has two end parts and is elastic, the brake pad is annularly arranged on the circumferential outer side of the brake disc, a limiting structure used for limiting the brake pad in the circumferential direction is also arranged between the brake pad and the wheel seat, when the brake mechanism is in a braking state, the two end parts of the brake pad move simultaneously to deform the brake pad, and the brake pad is tightly held on the periphery of the outer side of the brake disc; when the brake mechanism is in the state of releasing the brake, the brake block is separated from the brake disc.

Preferably, the brake pad includes an opening ring portion annularly arranged on the circumferential outer side of the brake disc, and connecting end portions respectively extending outwards from two ends of the opening ring portion, and the opening ring portion and the two connecting end portions are integral members integrally formed by the same material.

Further, the brake assembly further comprises a friction plate fixedly arranged on the inner side face of the brake disc, and when the brake mechanism is in a braking state, the friction plate is attached to the outer circumferential face of the brake disc.

Further, the friction plate is detachably mounted on the inner side surface of the open ring portion.

Further, when brake mechanism is by separating the state of stopping to the brake state conversion, two of brake block connect the tip to be close to each other and make the brake block warp, the opening of opening ring portion reduces, brake mechanism still includes and is used for ordering about two of brake block connect the brake driving piece that the tip is close to each other.

Preferably, the brake pads are made of spring steel.

Preferably, limit structure includes along circumference interval ground setting a plurality of spacing portions on the brake block, set up and be in a plurality of on the wheel seat with spacing portion complex cooperation portion, spacing portion with cooperation portion one-to-one, spacing portion with cooperation portion mutually support in order to restrict the brake block is followed brake disc radial ascending displacement volume.

Furthermore, the limiting part is a limiting pin fixedly arranged on the brake pad, the matching part is a limiting groove formed in the wheel seat, and the limiting pin can axially and relatively slide and/or relatively rotatably penetrate through the limiting groove.

The invention aims to provide a baby carriage with the brake mechanism.

In order to achieve the purpose, the invention adopts the technical scheme that: a baby carriage comprises a carriage frame and a wheel assembly arranged at the bottom of the carriage frame, wherein the brake mechanism is arranged between the wheel assembly and the carriage frame.

Preferably, the wheel subassembly is including locating separately two sets of rear wheel subassemblies of the rear portion left and right sides at the bottom of the frame, two sets of rear wheel subassembly with all be equipped with between the frame brake mechanism, every group brake mechanism still includes can order about two of brake block the brake cable that the tip is close to relatively when the tensioning, be provided with on the frame and be used for ordering about both sides the brake handle of the synchronous tensioning of brake cable.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the brake mechanism of the baby carriage, the purpose of parking can be achieved by driving the two end parts of the brake pad to be relatively close, the position of the brake pad is limited by the limiting structure, the brake pad overcomes the problem that the brake pad shakes and moves relative to the wheel seat in the prior art, and the brake mechanism is simple in structure and convenient to operate.

Drawings

FIG. 1 is a perspective view of a stroller in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the stroller of FIG. 1 with the wheels removed;

FIG. 3 is a schematic structural view of a brake assembly;

FIG. 4 is a front view of the wheel base;

FIG. 5 is a perspective view of the wheel base;

FIG. 6 is a perspective view of a wheel with a brake disc mounted thereon;

FIG. 7 is an exploded view of the structure of FIG. 6;

FIG. 8 is a top view of the wagon of FIG. 1, wherein the brake mechanism is in an unlocked position;

FIG. 9 is a schematic sectional view taken along line A-A of FIG. 8;

FIG. 10 is an enlarged view of the line M of FIG. 9;

FIG. 11 is a top view of the wagon of FIG. 1, with the brake mechanism in a braking position;

FIG. 12 is a schematic sectional view taken along line B-B of FIG. 11;

FIG. 13 is an enlarged view taken at point N of FIG. 12;

wherein: 100. a frame; 200. a rear wheel assembly; 300. a front wheel assembly;

1. a wheel seat; 11. a limiting groove; 2. a brake assembly; 21. a brake pad; 21a, an open ring portion; 21b, a connection end portion; 22. a friction plate; 23. a spacing pin; 3. a brake disc; 4. a wheel; 5. a brake cable; 6. a brake handle; 7. and (4) a wheel axle.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 to 13, the stroller includes a frame 100 and wheel assemblies disposed at the bottom of the frame 100, the wheel assemblies include two sets of rear wheel assemblies 200 disposed at the left and right sides of the rear portion of the bottom of the frame 100, and a front wheel assembly 300 disposed at the front portion of the bottom of the frame 100, wherein a brake mechanism is disposed between the rear wheel assemblies 200 at both sides and the frame 100.

Referring to the drawings, a rear wheel assembly 200 includes a wheel base 1 for fixed connection with a vehicle frame 100, and a wheel 4 rotatably mounted on the wheel base 1 via an axle 7. The brake mechanism comprises a brake disc 3 fixedly arranged on a wheel 4 and a brake assembly 2 arranged on a wheel seat 1, wherein the brake assembly 2 at least comprises a brake pad 21, the brake pad 21 is an annular member with two end parts, and the brake pad 21 is annularly arranged on the circumferential outer side of the brake disc 3. A limiting structure used for limiting the brake pad 21 in the circumferential direction is further arranged between the brake pad 21 and the wheel seat 1. When the brake mechanism is in the brake release state, the brake block 21 is separated from the brake disc 3, and the wheel 4 can rotate freely; when the brake mechanism is in a braking state, the brake block 21 deforms, and the brake block 21 is tightly held on the periphery of the outer side of the brake disc 3, so that rapid braking is realized, and the baby carriage is rapidly stopped to achieve the purpose of parking.

Specifically, referring to fig. 3, 10 and 13, the brake pad 21 is a unitary member having its own elasticity, which is preferably made of spring steel. When the brake mechanism is switched from the braking release state to the braking state, the two end portions of the brake pad 21 approach each other to deform the brake pad 21, so that the brake pad 21 is held tightly on the brake disc 3.

The brake assembly 2 further comprises a friction plate 22 fixedly disposed on the inner side surface of the brake pad 21, the friction plate 22 is preferably made of rubber, when the brake mechanism brakes, the friction plate 22 is attached to the outer circumferential surface of the brake disc 3 to realize braking, and the friction plate 22 can be replaced after being worn.

In the present embodiment, referring to fig. 3, the brake pad 21 includes an open ring portion 21a annularly disposed on the circumferential outer side of the brake disc 3, and connecting end portions 21b respectively bent and extended outward from both ends of the open ring portion 21a, the open ring portion 21a and the two connecting end portions 21b are integrally formed by the same material (here, spring steel), and the friction plate 22 is detachably mounted on the inner side surface of the open ring portion 21 a. The opening angle of the open ring portion 21a is preferably not more than 150 °. When the two connecting end portions 21b are urged relatively close to each other, the opening of the open ring portion 21a is gradually reduced, and the brake pad 21 is deformed so as to be held tightly against the brake disc 3 to perform braking.

The brake mechanism also includes a brake actuating member for urging the two connecting end portions 21b of the brake pads 21 toward each other. Here, referring to fig. 8 to 13, the brake actuating member includes a brake cable 5 disposed between two connecting ends 21b, and a brake handle 6 for tensioning the brake cable 5 is further disposed on the frame 100, and the brake cable 5 is tensioned by operating the brake handle 6 to drive the two connecting ends 21b to be relatively close to each other to achieve braking.

Referring to the drawings, the limiting structure comprises a plurality of limiting parts arranged on the brake pad 21 at intervals along the circumferential direction and a plurality of matching parts arranged on the wheel seat 1 and matched with the limiting parts, the limiting parts correspond to the matching parts one to one, and the limiting parts and the matching parts are matched with each other to limit the radial displacement of the brake pad 21 along the brake disc 3. In this embodiment, the limiting portion is a limiting pin 23 fixedly disposed on the brake pad 21, the limiting pin 23 is specifically disposed on the open ring portion 21a of the brake pad 21 and extends along the radial direction of the open ring portion 21a, the matching portion is a limiting groove 11 disposed on the wheel seat 1, and the limiting pin 23 can axially and relatively slide and/or relatively rotatably penetrate through the limiting groove 11. Here, the stopper pin 23 has three sets spaced apart in the longitudinal extension direction of the brake pad 21, and accordingly, the stopper groove 11 of the wheel holder 1 is also provided with three sets. No matter the brake mechanism is in the braking state or the braking releasing state, the limiting groove 11 of the limiting structure is matched with the limiting pin 23. In this embodiment, the wheel base 1 has a disk-shaped base and an annular barrier provided on the base and extending to one side in the circumferential direction, and all the stopper grooves 11 are formed in the annular barrier. An accommodating space is formed between the base and the annular baffle, and the brake disc 3 is accommodated in the accommodating space.

Referring to fig. 10, the brake mechanism is in the brake-released state, the inner side surface of the friction plate 22 in the brake assembly 2 is spaced from the brake disc 3, and the wheel 4 and the brake disc 3 can rotate relative to the frame 100, that is, the stroller can normally run. When the brake handle 6 is operated to tension the brake cable 5, as shown in fig. 13, the two connecting ends 21b of the brake pad 21 in the brake assembly 2 are relatively close to each other, so that the mouth of the open ring portion 21a is gradually reduced, the diameter of the open ring portion 21a is reduced, the friction plate 22 on the inner side of the open ring portion is gradually attached to the outer peripheral portion of the brake disc 3, finally the brake assembly 2 holds the brake disc 3 tightly from the circumferential direction, the brake disc 3 and the wheel 4 cannot rotate continuously, and the baby carriage stops rapidly, so that the parking purpose is achieved. When the brake is not needed to be continuously braked, an operator loosens the brake handle 6, the brake cable 5 is released, the brake block 21 is restored to the original state under the action of the elastic force of the brake block 21 and the limiting action of the limiting pin 23 and the limiting groove 11, and the brake component 2 is separated from the brake disc 3, so that the brake is released.

In conclusion, the brake mechanism disclosed by the invention is simple in structure and convenient to operate, and can be used for quickly realizing braking to achieve the purpose of parking.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A brake mechanism of a baby carriage, the baby carriage comprises a frame and a wheel component arranged at the bottom of the frame, the wheel component comprises a wheel seat connected with the frame and a wheel rotatably arranged on the wheel seat through a wheel shaft, and the brake mechanism is characterized in that: the brake mechanism comprises a brake disc fixedly arranged on the wheel and a brake assembly arranged on the wheel seat, the brake assembly at least comprises a brake pad, the brake pad is an annular component which has two end parts and is elastic, the brake pad is annularly arranged on the circumferential outer side of the brake disc, a limiting structure used for limiting the brake pad in the circumferential direction is further arranged between the brake pad and the wheel seat, when the brake mechanism is in a braking state, the two end parts of the brake pad move simultaneously to enable the brake pad to deform, and the brake pad is tightly held on the circumferential part of the outer side of the brake disc; when the brake mechanism is in the state of releasing the brake, the brake block is separated from the brake disc.

2. A brake mechanism for a stroller according to claim 1, wherein: the brake block includes that the ring is established the opening ring portion in brake disc circumference outside, and certainly the both ends of opening ring portion are outside connection end portion that extends respectively, opening ring portion and two connection end portion are by same material integrated into one piece's whole component.

3. A brake mechanism for a stroller according to claim 2, wherein: the brake assembly further comprises a friction plate fixedly arranged on the inner side face of the brake block, and when the brake mechanism is in a braking state, the friction plate is attached to and contacted with the circumferential face of the outer side of the brake disc.

4. A brake mechanism for a stroller according to claim 3, wherein: the friction plate is detachably mounted on the inner side surface of the opening ring portion.

5. A brake mechanism for a stroller according to claim 2, wherein: work as brake mechanism is by separating when stopping the state to the brake state conversion, two of brake block connecting end portion is close to each other and makes the brake block warp, the opening of opening ring portion reduces, brake mechanism still is including being used for ordering about two of brake block connecting end portion brake driving piece that is close to each other.

6. A brake mechanism for a stroller according to any of claims 1 to 5, wherein: the brake pad is made of spring steel.

7. A brake mechanism for a stroller according to claim 1, wherein: limit structure includes along circumference interval ground setting a plurality of spacing portions on the brake block, sets up a plurality of on the wheel seat with spacing portion complex cooperation portion, spacing portion with cooperation portion one-to-one, spacing portion with cooperation portion mutually supports in order to restrict the brake block is followed brake disc radial ascending displacement volume.

8. A brake mechanism for a stroller according to claim 7, wherein: the limiting portion is a limiting pin fixedly arranged on the brake pad, the matching portion is a limiting groove formed in the wheel seat, and the limiting pin can axially and relatively slide and/or relatively rotatably penetrate through the limiting groove.

9. The utility model provides a bassinet, includes the frame and locates the wheel subassembly of frame bottom, its characterized in that: a brake mechanism as claimed in any one of claims 1 to 8 provided between the wheel assembly and the vehicle frame.

10. A stroller according to claim 9, wherein: the wheel subassembly is including dividing to locate two sets of rear wheel subassemblies of the rear portion left and right sides at the bottom of the frame, and is two sets of the rear wheel subassembly with all be equipped with between the frame brake mechanism, every group brake mechanism still includes can order about two of brake block the brake cable that the tip is close to relatively, be provided with on the frame and be used for ordering about both sides the brake handle of the synchronous tensioning of brake cable.