阅读说明：本技术 一种儿童推车的联动刹车机构及儿童推车 (Linkage brake mechanism of baby carriage and baby carriage ) 是由 王菲 于 2020-06-13 设计创作，主要内容包括：本发明涉及推车技术领域,提供了一种结构简单且操作方便的儿童推车的联动刹车机构,解决了万向轮刹车的问题,机构包括车架和设于车架底部的轮组件,车架包括轮接头、连接在轮接头上的连杆和固于连杆对其发生动作的踏板,轮接头中设有由连杆相对于轮接头运动时驱使下压的下压滑块,轮组件包括轮叉、转动地安装在轮叉下方的车轮和固定连接在轮叉上方的转动轴,转动轴枢接于轮接头；轮组件还包括滑动地设于轮叉上的滑动件和固设于车轮上且具有刹车槽的刹车盘,滑动件上具有能够插入刹车槽中的卡掣部。在万向轮被定向的情况下,单一动作可以实现刹车和解刹,并且可以实现联动刹车,而且使得轮组件与车架组件之间能够实现可拆卸。(The invention relates to the technical field of a trolley, and provides a linkage brake mechanism of a child trolley, which has a simple structure and is convenient to operate, and solves the problem of universal wheel brake; the wheel assembly further comprises a sliding piece arranged on the wheel fork in a sliding mode and a brake disc fixedly arranged on the wheel and provided with a brake groove, and the sliding piece is provided with a clamping part capable of being inserted into the brake groove. Under the condition that the universal wheel is oriented, the single action can realize braking and releasing to can realize linkage braking, make moreover to realize dismantling between wheel subassembly and the frame subassembly.)

1. The utility model provides a linkage brake mechanism of children's shallow which characterized in that: the linkage brake mechanism comprises a frame and a wheel assembly arranged at the bottom of the frame, the frame comprises a wheel joint, a connecting rod connected to the wheel joint and a pedal fixedly arranged on the connecting rod to act on the wheel joint, a pressing slider driven to be pressed down by the connecting rod when the connecting rod moves relative to the wheel joint is arranged in the wheel joint, the wheel assembly comprises a wheel fork, a wheel rotatably arranged below the wheel fork and a rotating shaft fixedly connected above the wheel fork, and the rotating shaft is pivoted to the wheel joint;

the wheel assembly further comprises a sliding piece which is slidably arranged on the wheel fork, a brake disc which is fixedly arranged on the wheel and is provided with a brake groove, a clamping part which can be inserted into the brake groove is arranged on the sliding piece, the brake mechanism has a brake release state and a brake state, the wheel assembly further comprises a driving sliding block, a connecting piece which is connected between the sliding piece and the driving sliding block, a first elastic piece which is used for providing the upward movement tendency of the driving sliding block, and a second elastic piece which is used for providing the sliding of the sliding piece to the brake groove;

the acting force of the first elastic piece on the sliding piece is opposite to the acting force of the second elastic piece on the sliding piece, the acting force of the first elastic piece on the sliding piece is greater than the acting force of the second elastic piece on the sliding piece, the clamping part is separated from the brake groove under the condition of no external force, and the brake mechanism is in a brake release state; the connecting rod moves to drive the pressing sliding block to move downwards, the driving sliding block which is in contact with the pressing sliding block also moves downwards, the acting force applied by the first elastic piece to the sliding piece fails, the sliding piece slides to the brake groove under the acting force of the second elastic piece, the clamping part is inserted in the brake groove, and the brake mechanism is in a brake state.

2. The linkage brake mechanism according to claim 1, wherein: the left side and the right side of the frame are both provided with wheel components, the left wheel component and the right wheel component are universal wheels, the rod is connected to the left wheel joint and the right wheel joint, and the brake locking of the left wheel and the right wheel can be completed simultaneously.

3. The linkage brake mechanism according to claim 1, wherein: an orientation mechanism which can limit and release the mutual rotation relationship between the rotating shaft and the wheel joint is arranged between the wheel assembly and the frame, a quick-release device is arranged between the wheel assembly and the wheel joint, and the wheel assembly can be quickly detached and installed.

4. A stroller, characterized in that: the stroller has a brake mechanism of the stroller as claimed in any one of claims 1 to 3.

Technical Field

The invention relates to the technical field of a stroller, in particular to a linkage brake mechanism of a child stroller and the child stroller.

Background

The child stroller is generally provided with a brake mechanism to ensure the safety in use, and for convenient operation, the brake mechanism is mostly linked brake, namely single action, so that wheels on two sides can be braked simultaneously, and the linked brake structure of the child stroller on the market is mostly driven by a traction rope, or the linked brake is directly abandoned so as to adopt independent brake of left and right two wheels. To the shallow that can commutate, can produce the winding between haulage cable and the universal pivot, lead to the card to die.

Disclosure of Invention

The invention aims to provide a brake mechanism of a baby stroller, which has a simple structure and is convenient to operate. In order to achieve the purpose, the invention adopts the following technical scheme: a linkage brake mechanism of a children's cart comprises a frame and a wheel assembly arranged at the bottom of the frame, wherein the frame comprises a wheel joint, a connecting rod connected to the wheel joint and a pedal fixedly arranged on the connecting rod to act on the wheel joint;

the wheel assembly further comprises a sliding piece which is slidably arranged on the wheel fork, a brake disc which is fixedly arranged on the wheel and is provided with a brake groove, a clamping part which can be inserted into the brake groove is arranged on the sliding piece, the brake mechanism is provided with an unlocking state and a braking state, the wheel assembly further comprises a driving sliding block and a connecting piece which is connected between the sliding piece and the driving sliding block, a first elastic piece which is used for providing the upward movement trend of the driving sliding block, and a second elastic piece which is used for providing the sliding of the sliding piece to the brake groove;

furthermore, the acting force of the first elastic piece on the sliding piece is opposite to the acting force of the second elastic piece on the sliding piece, the acting force of the first elastic piece on the sliding piece is greater than the acting force of the second elastic piece on the sliding piece, the clamping part is separated from the brake groove under the action of no external force, and the brake mechanism is in a brake release state; the connecting rod moves to drive the pressing slide block to move downwards, the driving slide block which is in contact with the pressing slide block also moves downwards, the acting force applied by the first elastic piece on the sliding piece fails, the sliding piece slides to the brake groove under the acting force of the second elastic piece, the clamping part is inserted in the brake groove, and the brake mechanism is in a brake state.

Preferably, the left side and the right side of the frame are both provided with wheel components, the left wheel component and the right wheel component are universal wheels, and the rod is connected to the joints of the left wheel component and the right wheel component, so that the brake locking of the left wheel component and the brake locking of the right wheel component can be simultaneously completed.

Preferably, an orientation mechanism is arranged between the wheel assembly and the frame, which can limit and release the mutual rotation between the rotation shaft and the wheel joint, and a quick release device is arranged between the wheel assembly and the wheel joint, so that the wheel assembly can be quickly detached and installed.

The invention also provides another technical scheme: a child stroller is provided with the brake mechanism described above on at least one of two opposite sides in the front-rear direction.

By adopting the technical scheme, the linkage brake mechanism of the baby carriage and the baby carriage solve the problem of universal wheel braking, can realize braking and braking release under the condition that the universal wheels are oriented, can realize linkage braking, are very simple to operate, and can realize the detachability between the wheel assembly and the carriage assembly.

Drawings

FIG. 1 is a schematic structural diagram of a brake mechanism in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a wheel assembly in the brake mechanism according to the embodiment of the present invention;

FIG. 3 is an exploded view of a fork of the brake mechanism according to an embodiment of the present invention;

FIG. 4 is a right side schematic view of a fork in the brake mechanism of the embodiment of the present invention;

FIG. 5 is a cross-sectional schematic view of the fork shown in FIG. 4;

FIG. 6 is a schematic structural view of the interior of a wheel joint in the brake mechanism according to the embodiment of the present invention;

FIG. 7 is a perspective view of the eccentric cam and hold-down slide of FIG. 6;

FIG. 8 is a schematic structural view of the eccentric cam and the hold-down slider of FIG. 6 in an unlocked state;

FIG. 9 is a schematic structural view of the eccentric cam and the hold-down slider of FIG. 6 in a braking state;

the reference numbers in the figures are: 100. a frame; 200. a wheel joint; 201. a quick release device; 202. an orientation device; 203. pressing the slide block downwards; 300. a wheel assembly; 301. a wheel; 302. a wheel fork; 303. a slider; 304. driving the slide block; 305. a connecting member; 306. a rotating shaft; 307. a second elastic member; 308. a first elastic member; 400. a connecting rod; 401. an eccentric cam; 500. a pedal.

Detailed Description

As shown in the drawings, in the present embodiment, the directions "front", "rear", "left", "right", "up", "down", and the like are described with reference to the direction in which the user pushes the stroller, that is, the direction in which the handle bar is pushed forward, and the direction in which the user pushes the stroller and the direction in which the handle bar faces forward.

In this embodiment, as shown in the figures, the linkage brake mechanism of the stroller includes a frame 100 and a wheel assembly 300 disposed at the bottom of the frame, the frame 100 includes a wheel joint 200, a connecting rod 400 connected to the wheel joint 200, and a pedal 500 fixed to the connecting rod for acting on the connecting rod, a push-down slider 203 driven to be pushed down by the connecting rod 400 when the connecting rod 400 moves relative to the wheel joint 200 is disposed in the wheel joint 200, the wheel assembly 300 includes a wheel fork 302, a wheel 301 rotatably mounted below the wheel fork 302, and a rotating shaft 307 fixedly connected above the wheel fork 302, and the rotating shaft 307 is pivoted to the wheel joint 200;

further, the wheel assembly 300 further includes a sliding member 303 slidably disposed on the wheel fork 302 and a brake disc fixedly disposed on the wheel 301 and having a brake slot, the sliding member 303 has a detent portion capable of being inserted into the brake slot, the brake mechanism has an unlocked state and a braking state, the wheel assembly 300 further includes a driving slider 304 and a connecting member 305 connected between the sliding member 303 and the driving slider 304, in this embodiment, the connecting member 305 is a traction cable, a first elastic member 308 for providing an upward movement tendency of the driving slider 304 and a second elastic member 307 for providing a sliding movement of the sliding member 303 toward the brake slot, in this embodiment, the first elastic member 308 and the second elastic member 307 are both springs;

further, the acting force of the first elastic element 308 on the sliding element 303 is opposite to the acting force of the second elastic element 307 on the sliding element 303, the acting force of the first elastic element 307 on the sliding element 303 is greater than the acting force of the second elastic element 308 on the sliding element 303, the clamping part is separated from the brake groove under the condition of no external force, and the brake mechanism is in a brake release state; in this embodiment, as shown in fig. 7, the eccentric cam 401 is fixed on the connecting rod 400, the connecting rod 400 rotates to drive the downward-pressing slider 203 to move downward, the driving slider 304 contacting with the downward-pressing slider 203 also moves downward, the acting force applied by the first elastic member 308 to the sliding member 303 fails, the sliding member 303 slides to the braking slot under the acting force of the second elastic member 308, the detent portion is inserted into the braking slot, and the braking mechanism is in a braking state.

As shown in fig. 1, the left and right sides of the frame 100 are provided with wheel assemblies 300, the left and right wheel assemblies 300 are universal wheels, and the rod 400 is connected to the left and right wheel joints 200 to simultaneously perform brake locking of the left and right wheels 301.

As shown in fig. 6, an orienting device 202 is provided between the wheel assembly 300 and the frame 100 to limit and release the rotational relationship between the rotational axis and the wheel joint, and a quick release device 201 is provided between the wheel assembly and the wheel joint, so that the wheel assembly 300 can be quickly removed and installed.

The invention also provides another technical scheme: a child stroller is provided with the brake mechanism described above on at least one of two opposite sides in the front-rear direction.

By adopting the technical scheme, the linkage brake mechanism of the baby carriage and the baby carriage solve the problem of universal wheel braking, can realize braking and braking release under the condition that the universal wheels are oriented, can realize linkage braking, are very simple to operate, and can realize the detachability between the wheel assembly and the carriage assembly.

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.