Brake mechanism of walking aid

Abstract

The utility model discloses a brake mechanism of a walking aid. The brake frame is movably mounted on the frame and is positioned above the wheels; the brake piece is arranged on the brake frame; the connecting rod is mounted on the frame and is used for limiting the moving position of the brake frame on the frame; the brake cable pipe is mounted on the brake frame; one end of the brake cable is fixedly connected with the connecting rod; and the spring is sleeved on the brake cable and is positioned between the connecting rod and the brake frame. The brake mechanism is simple and small in overall structure and high in brake stability, the whole brake mechanism is located above the wheels, when the wheels deflect or have other problems, the wheels cannot be interfered, normal use cannot be affected, the situation that the brake effect is affected due to the fact that soil or stones or the like are clamped between the brake mechanism and the wheels in the using process cannot happen, and the service life of the brake mechanism is prolonged. Even brake failure is caused.

Description

Technical Field

[0001] The utility model relates to a brake device for a walking aid, in particular to a brake mechanism for a walking aid. Background Art

[0002] With the improvement of living standards and the abundance of material resources, auxiliary and rehabilitation treatment equipment is becoming more and more popular in the market. A walking aid is an auxiliary walking device that supports the body weight of a person and maintains the body balance. It is widely used for patients with inconvenient mobility or the elderly and weak. A walking aid usually includes a walking aid bracket, on which there are handlebars for the palm to grasp and wheels that roll on the ground. Usually, a brake handle is provided on the handlebars, and a brake is usually provided on the wheels. The brake handle is connected by a brake wire arranged on the walking aid bracket and drives the brake to move, so as to lock or release the wheels.

[0003] In order to be more convenient during handling and save more space during packaging to reduce transportation costs, existing walking aids are set to be foldable structures. However, the brake structure on existing walking aids is basically a brake pad that is movably installed on the frame through a pin, a brake wire connected to the brake pad, a limit bracket installed on the frame, and a spring that is sleeved on the brake wire and is between the limit bracket and the brake pad. By pulling the brake wire, the brake pad is driven to rotate so that the brake pad contacts the wheel to generate friction to play a braking role. However, this method has a relatively large structure. When packaging after folding, in order to avoid interference and damage, space will be left at the brake device, resulting in a large space occupied by the entire packaging.

[0004] Moreover, the brake pads and springs on some existing brake devices are installed on one side of the wheel. However, in actual use, if problems such as wheel deflection occur, it is very easy to cause interference between the brake device and the wheel, resulting in brake failure or even inability to use normally. At the same time, when set on the side, dirt or stones are likely to get stuck between the brake device and the wheel during use, which has a certain impact on the use of the brake device and even causes the brake device to malfunction. Therefore, a brake mechanism for a walking aid is proposed. Summary of the Utility Model

[0005] The purpose of the utility model is to propose a brake mechanism for a walking aid to solve the above problems.

[0006] To achieve the above object, the present utility model provides the following technical solution: a braking mechanism for a walking aid, comprising a vehicle frame and wheels mounted on the vehicle frame; characterized in that it further includes a brake frame movably mounted on the vehicle frame and located above the wheels, a braking member provided on the brake frame, a connecting rod mounted on the vehicle frame and limiting the moving position of the brake frame on the vehicle frame, a brake wire tube mounted on the brake frame, a brake wire located in the brake wire tube and fixedly connected to the connecting rod at one end, and a spring sleeved on the brake wire and located between the connecting rod and the brake frame.

[0007] Further preferably, it further includes a stroke limit groove provided on the brake frame corresponding to the connecting rod.

[0008] Further preferably, the braking member is provided at the bottom of the brake frame for contacting the wheel, and the bottom of the braking member is arc-shaped.

[0009] Further preferably, the other end of the brake wire is connected to a brake handle, one end of the brake wire tube abuts against the brake handle, and the other end is fixedly connected to a connecting pipe, and the connecting pipe is connected to the brake frame.

[0010] The beneficial effects of the present utility model: The overall structure of the device is simple and compact, the braking stability is high, and the entire braking mechanism is located above the wheels. When the wheels deflect or have other problems, it will not interfere with the wheels and affect normal use, and when in use, it will not be affected by dirt or stones getting stuck between the braking mechanism and the wheels and affect the braking effect, or even cause brake failure;

[0011] By using a plurality of brake pads to form the braking member, when braking the wheel, the plurality of brake pads contact the wheel synchronously, so that multiple frictions are formed when the wheel is braked, thereby forming multiple brakes, with fast braking, high stability and higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Att Figure 1 is a schematic structural diagram of the present utility model;

[0013] Att Figure 2 is a partially enlarged schematic structural diagram of the present utility model;

[0014] Att Figure 3 is a partially enlarged schematic structural diagram of the present utility model;

[0015] Att Figure 4 is a schematic structural diagram of the present utility model during use.

[0016] Legend description: 1. Vehicle frame; 2. Wheels; 3. Brake frame; 4. Braking member; 5. Connecting rod; 6. Brake wire tube; 7. Brake wire; 8. Spring; 9. Stroke limit groove; 10. Brake pads; 11. Brake handle; 12. Connecting pipe. Detailed implementation mode

[0017] Next, we will further explain the braking mechanism of a walking aid according to the present utility model in conjunction with the accompanying drawings.

[0018] It should be noted that all directional indications in the embodiments of the present utility model, such as up, down, left, right, front, back... are only used to explain the relative positional relationship and movement conditions between components in a specific posture as shown in the accompanying drawings. If this specific posture changes, then the directional indications will also change accordingly.

[0019] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense; for example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] Refer to Figures 1-4 As shown in [reference], a braking mechanism of a walking aid includes a vehicle frame 1 and wheels 2 mounted on the vehicle frame 1; its characteristic is that it further includes a brake frame 3 movably mounted on the vehicle frame 1 and located above the wheels 2, a brake member 4 provided on the brake frame 3, a connecting rod 5 mounted on the vehicle frame 1 and limiting the moving position of the brake frame 3 on the vehicle frame 1, a brake wire tube 6 mounted on the brake frame 3, a brake wire 7 located inside the brake wire tube 6 and fixedly connected to one end of the connecting rod 5, and a spring 8 sleeved on the brake wire 7 and located between the connecting rod 5 and the brake frame 3;

[0021] The overall structure of this device is simple and compact, with high braking stability, and the entire braking mechanism is located above the wheels 2. When the wheels 2 deflect or have other problems, it will not interfere with the wheels 2 and affect normal use, and when in use, it will not be affected by dirt or stones getting stuck between the braking mechanism and the wheels 2, resulting in a reduction in braking effect or even brake failure.

[0022] In one embodiment, it further includes a stroke limit groove 9 provided on the brake frame 3 corresponding to the connecting rod 5. Through the setting of the stroke limit groove 9, it limits the moving stroke of the brake frame 3 on the vehicle frame 1, and at the same time plays a role in limiting and guiding the up and down movement.

[0023] In one embodiment, the brake member 4 is a plurality of brake pads 10 provided at the bottom of the brake frame 3 for contacting the wheels 2, and the bottoms of the plurality of brake pads 10 are all arc-shaped;

[0024] By using a number of brake pads 10 to form a brake member 4, when braking the wheel 2, the number of brake pads 10 synchronously contact the wheel 2, causing multiple frictions to be formed during braking of the wheel 2, thereby forming multiple brakes. The braking is fast, highly stable, and safer.

[0025] In one embodiment, the other end of the brake wire 7 is connected to a brake lever 11. One end of the brake wire tube 6 abuts against the brake lever 11, and the other end is fixedly connected to a connecting tube 12. The connecting tube 12 is connected to the brake frame 3.

[0026] When the present utility model is in use: during braking, by pulling the brake lever 11 to pull the brake wire 7, the length of the brake wire 7 in the brake wire tube 6 becomes shorter after being pulled, and the end of the brake wire 7 exerts a downward thrust on the connecting tube 12 and the brake frame 3. During the downward movement of the brake frame 3, the spring 8 is compressed and drives a number of brake pads 10 to move downward until the brake pads 10 contact the wheel 2 to generate friction for braking; after releasing the brake lever 11, the brake wire 7 is no longer pulled. At this time, the brake frame 3 is pushed upward to reset by the restoring force of the spring 8.

[0027] The protection scope of the present utility model is not limited to the above embodiments and their transformations. Routine modifications and replacements made by those skilled in the art based on the content of this embodiment all fall within the protection scope of the present utility model.

Claims

1. A brake mechanism for a walking aid, comprising a frame (1) and a wheel (2) mounted on the frame (1); wherein: The invention also comprises a brake frame (3) movably mounted on the vehicle frame (1) and located above the wheel (2), a brake member (4) arranged on the brake frame (3), a connecting rod (5) mounted on the vehicle frame (1) and limiting the movable position of the brake frame (3) on the vehicle frame (1), a brake line tube (6) mounted on the brake frame (3), a brake line (7) located in the brake line tube (6) and having one end fixedly connected to the connecting rod (5), and a spring (8) sleeved on the brake line (7) and located between the connecting rod (5) and the brake frame (3).

2. The brake mechanism of a walking aid according to claim 1, characterized in that: It also includes a travel limit groove (9) arranged on the brake frame (3) and corresponding to the connecting rod (5).

3. The brake mechanism of a walking aid according to claim 1, characterized in that: The brake components (4) are a plurality of brake pads (10) arranged at the bottom of the brake frame (3) for contacting the wheel (2), and the bottoms of the plurality of brake pads (10) are all arranged in an arc shape.

4. The brake mechanism of a walking aid according to claim 1, characterized in that: The other end of the brake line (7) is connected to a brake handle (11); one end of the brake line tube (6) abuts against the brake handle (11) and the other end is fixedly connected to a connecting tube (12); the connecting tube (12) is connected to the brake frame (3).

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