Brake device for baby carriage

Abstract

The utility model discloses a brake device for a baby carriage, which comprises a wheel carrier, a wheel shaft is rotatably connected onto the wheel carrier, a wheel is arranged on the wheel shaft, a brake shaft is fixedly connected onto the wheel carrier, a brake arm is rotatably connected onto the brake shaft, the brake arm comprises a driving arm and a driven arm, the driving arm extends back to the wheel shaft, and the driven arm extends towards the wheel shaft. A brake block arranged on the driven arm is arranged between the driven arm and the wheel shaft, and a foot bar is arranged on the driving arm; a spring mounting frame arranged on the wheel frame is arranged on one side, facing the wheel shaft, of the driven arm, and an elastic piece with one end abutting against the spring mounting frame and the other end abutting against the driven arm is arranged between the spring mounting frame and the driven arm; a limiting groove extending in the circumferential direction is formed in the brake arm, a limiting block is slidably connected into the limiting groove, and the limiting block is fixedly connected to the brake shaft. The brake device does not have a locking function, can generate large friction on a wheel shaft when being slightly treaded to reduce the speed of the wheel shaft, avoids large recoil force caused by sudden stop, and is comfortable and reliable to use, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriage manufacturing, and more specifically, to a brake device for a baby carriage. Background Art

[0002] The brake device installed on the baby carriage on the market has a locking function. When the brake is in the locked wheel state, the wheel cannot rotate. Moreover, the brake is mostly used for emergency stop function, the recoil force is large, the passengers will feel uncomfortable, and the overall effect is not good. Based on this, the utility model proposes a brake device for a baby carriage. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a brake device for a baby carriage.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model involves a brake device for a baby carriage, comprising a wheel frame, a wheel axle is rotatably connected to the wheel frame, a wheel for following is arranged on the wheel axle, a brake shaft is fixedly connected to the wheel frame, a brake arm is rotatably connected to the brake shaft, the brake arm comprises an active arm extending away from the wheel axle and a driven arm extending toward the wheel axle, a brake block arranged on the driven arm is arranged between the driven arm and the wheel axle, and a pedal is arranged on the active arm;

[0005] A spring mounting frame arranged on the wheel frame is provided on the side of the driven arm facing the wheel axle, and an elastic member with one end abutting against the spring mounting frame and the other end abutting against the driven arm is provided between the spring mounting frame and the driven arm;

[0006] The brake arm is provided with a limiting groove extending in a circumferential direction, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the brake shaft.

[0007] The utility model is further configured as follows: a first positioning groove for burying one end portion of the elastic member is provided on the driven arm; and a second positioning groove for burying the other end portion of the elastic member is provided on the spring mounting frame.

[0008] The utility model is further configured as follows: the elastic member is a compression spring.

[0009] The utility model is further configured as follows: the limiting groove extends 75° to 90° along the circumferential direction.

[0010] The utility model is further configured as follows: the brake block is made of rubber material.

[0011] In summary, the utility model has the following beneficial effects: the brake device for a baby carriage involved in the utility model does not have a locking function. When lightly stepped on, it can generate greater friction on the wheel axle to slow it down and avoid a large recoil force caused by an emergency stop. It is comfortable and reliable to use, has complete overall functions, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0013] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0014] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0015] Example 1

[0016] See also Figure 1 As shown, a brake device for a baby carriage according to the present embodiment comprises a wheel frame 1, a wheel axle 2 is rotatably connected to the wheel frame 1, a wheel 3 for following is arranged on the wheel axle 2, a brake shaft 4 is fixedly connected to the wheel frame 1, a brake arm 5 is rotatably connected to the brake shaft 4, the brake arm 5 comprises an active arm 51 extending away from the wheel axle, a driven arm 52 extending toward the wheel axle, a brake block 6 arranged on the driven arm is arranged between the driven arm 52 and the wheel axle 2, the brake block 6 is made of rubber material, and a pedal 7 is arranged on the active arm 51;

[0017] A spring mounting frame 8 disposed on the wheel frame 1 is disposed on the side of the driven arm 52 facing the wheel axle 2, and an elastic member 9 is disposed between the spring mounting frame 8 and the driven arm 52, with one end abutting against the spring mounting frame and the other end abutting against the driven arm, and the elastic member 9 is a compression spring;

[0018] The brake arm 5 is provided with a limiting groove 10 extending in a circumferential direction of 75° to 90°, and a limiting block 11 is slidably connected in the limiting groove 10 , and the limiting block 11 is fixedly connected to the brake shaft 4 .

[0019] Furthermore, the driven arm 52 is provided with a first positioning groove (not shown) for embedding one end portion of the elastic member 9 ; the spring mounting frame 8 is provided with a second positioning groove (not shown) for embedding the other end portion of the elastic member 9 .

[0020] In this embodiment, first, the baby carriage is in a fast moving state, and the axle 2 and the wheel 3 rotate at a high speed. At this time, by lightly stepping on the pedal rod 7, the brake arm 5 rotates relative to the brake shaft 4, until the driven arm 52 swings up, and the brake block 6 is tightly attached to the rotating axle 2, forming a large friction force between the two, thereby reducing the speed of the axle 2 to achieve a braking deceleration effect.

[0021] The spring mounting frame 8 cooperates with the elastic member 9 to reset the brake arm 5 .

[0022] The limiting groove 10 cooperates with the limiting block 11 to provide a circumferential limiting function when the brake arm 5 rotates relative to the wheel frame 1 .

[0023] The first positioning groove cooperates with the second positioning groove to achieve positioning of the elastic member 9 during installation.

[0024] The brake device for a baby carriage involved in the utility model has no locking function. When lightly stepped on, it can generate greater friction on the wheel axle to reduce the speed and avoid a large recoil force caused by sudden stop. The brake device is comfortable and reliable to use, has complete overall functions and is highly practical.

[0025] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0026] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A brake device for a baby carriage, comprising a wheel frame, a wheel axle rotatably connected to the wheel frame, and a wheel axle provided on the wheel axle for following movement, characterized in that: The wheel frame is fixedly connected with a brake shaft, and the brake shaft is rotatably connected with a brake arm, the brake arm comprises an active arm extending away from the wheel shaft and a driven arm extending toward the wheel shaft, a brake block arranged on the driven arm is arranged between the driven arm and the wheel shaft, and a pedal is arranged on the active arm; A spring mounting frame arranged on the wheel frame is provided on the side of the driven arm facing the wheel axle, and an elastic member with one end abutting against the spring mounting frame and the other end abutting against the driven arm is provided between the spring mounting frame and the driven arm; The brake arm is provided with a limiting groove extending in a circumferential direction, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the brake shaft.

2. The brake device for a baby carriage according to claim 1, characterized in that: The driven arm is provided with a first positioning groove for burying one end portion of the elastic member; the spring mounting frame is provided with a second positioning groove for burying the other end portion of the elastic member.

3. The brake device for a baby carriage according to claim 1 or 2, characterized in that: The elastic member is a compression spring.

4. The brake device for a baby carriage according to claim 3, characterized in that: The limiting groove extends from 75° to 90° along the circumferential direction.

5. The brake device for a baby carriage according to claim 1, characterized in that: The brake block is made of rubber material.

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