Band-type brake for baby carriage

Abstract

The utility model relates to the technical field of brakes, and discloses a brake for a baby carriage, which comprises a brake box shell, a brake disc and a brake belt component, the brake disc and the brake belt component are arranged in the brake box shell, one end of the brake belt component is pivotally fixed on one side of the brake box shell, and the other end of the brake belt component is rotatably connected with a rocker arm. The middle of the rocker arm is rotationally connected with the brake box shell through a fixed core rotating shaft, and the brake belt assembly is arranged on the outer side of the brake disc in a surrounding mode to brake the brake disc in an internally-retracting and enclasping mode. A noise reduction structure is further arranged between the brake belt assembly and the brake box shell, the noise reduction structure is used for buffering abnormal sound and noise generated by vibration and collision between the brake belt assembly in the free state and the brake box shell in the riding process, and unsafe factors of the band-type brake structure for the baby carriage are effectively eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a holding brake for a baby carriage. Background Art

[0002] The holding brake is widely used in bicycles or electric bicycles due to its simple structure, easy installation, reliable braking and low cost, such as CN2910781Y electric bicycle and bicycle holding brake;

[0003] Similarly, the holding brake can also be used as a braking device for slower children's bicycles. However, during riding, when the holding brake is in the non-braking state, the bumps and vibrations cause the free brake band to vibrate and collide with the inner wall of the brake box shell, generating abnormal noise. Due to children's curiosity and desire to explore, they may use their hands to directly operate, repair, or play, and sometimes get their hands stuck in the gap between the brake and the frame, affecting children's safety.

[0004] Therefore, how to eliminate the unsafe factors of the brake structure for baby carriages is an urgent problem to be solved in this field. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a brake for a baby carriage, which overcomes the problems of the existing technology such as abnormal noise generated by the brake due to bumps and vibrations and fingers getting stuck due to children's playfulness.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions.

[0007] The utility model is a holding brake for a baby carriage, comprising: a brake box housing, a brake disc built into the brake box housing, and a brake band assembly, wherein one end of the brake band assembly is pivotally fixed to one side of the brake box housing, and the other end is rotatably connected to a rocker arm, the middle of the rocker arm is rotatably connected to the brake box housing via a fixed core rotating shaft, and the other end of the rocker arm is provided with a brake line fixing structure, and the inner side surface of the brake band assembly is provided with a wear-resistant brake lining, and the brake band assembly and the wear-resistant brake lining are arranged around the outer side of the brake disc to tighten the brake disc inward for braking, and a noise reduction structure is further provided between the brake band assembly and the brake box housing, and the noise reduction structure is used to buffer abnormal sounds and noises caused by vibration and collision between the brake band assembly in a free state and the brake box housing during riding.

[0008] A further improvement is that the noise reduction structure is a first elastic buffer provided on the side wall of the inner cavity of the brake box housing and / or a second elastic buffer provided on the outside of the brake band assembly.

[0009] A further improvement is that: the first elastic buffer is a strip-shaped foam structure arranged at intervals or continuously on the side wall of the inner cavity of the gate box housing.

[0010] A further improvement is that the second elastic buffer is a foam bump structure that is arranged at intervals or continuously on the outside of the brake band assembly and opposite to the side wall of the inner cavity of the brake box housing.

[0011] A further improvement is that: the rocker arm is also provided with a backlash-eliminating block, which is arranged on the outer surface between the connection point of the fixed core shaft on the rocker arm and the brake line fixing structure.

[0012] A further improvement is that the backlash-eliminating block is configured as a fan-shaped structure, and a connection structure adapted to the rocker arm is provided on one side of the fan-shaped structure.

[0013] A further improvement is that the backlash-eliminating block is an integrally-molded structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present application provides a noise reduction structure between the outer side of the holding brake band assembly and the inner side wall of the brake box housing. The noise reduction structure is composed of a first elastic buffer member continuously or intermittently arranged on the inner side wall of the brake box housing, or a second elastic buffer member is intermittently or continuously arranged on the outer side of the brake band assembly, or the first elastic buffer member and the second elastic buffer member are simultaneously arranged to directly isolate the brake band assembly from direct contact with the brake box housing, thereby eliminating abnormal sounds and noises caused by vibration and impact between the two.

[0016] At the same time, by providing a gap-eliminating block on the rocker arm, the installation gap between the brake rocker arm 4 and the frame is eliminated, eliminating the safety hazard to children caused by the installation gap of the brake device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a cross-sectional view of an embodiment of the present utility model.

[0019] Figure 3 It is an exploded view of another embodiment of the present invention.

[0020] Figure 4 It is a three-dimensional schematic diagram of another embodiment of the utility model.

[0021] Figure 5 It is a schematic diagram of the backlash-eliminating block of the utility model.

[0022] Figure ID:

[0023] Brake box housing 1, brake disc 2, brake band assembly 3, wear-resistant brake lining 31, rocker arm 4, fixed core shaft 5

[0024] Noise reduction structure 6 , first elastic buffer 61 , second elastic buffer 62 , and backlash-eliminating block 7 . DETAILED DESCRIPTION

[0025] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings. This embodiment is only used to explain the present invention and does not constitute a limitation on the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the combination or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] The present invention will be further described below with reference to the accompanying drawings and in combination with embodiments.

[0028] Figure 1-2 The figure shows a brake for a baby carriage, comprising: a brake box housing 1, a brake disc 2 and a brake band assembly 3 built into the brake box housing 1. The center position of the brake disc 2 is provided with a connection structure adapted to the wheel hub. One end of the brake band assembly 3 is pivotally fixed to one side of the brake box housing 1 by a rivet or bolt nut, and the other end is rotatably connected to the rocker arm 4. The middle part of the rocker arm 4 is rotatably connected to the brake box housing 1 through a fixed core rotating shaft 5. The fixed core rotating shaft 5 is fixed to the head of the brake box housing 1. A mounting hole is provided on the rocker arm 4, which is sleeved on the boss of the fixed core rotating shaft 5. A threaded structure is provided on the upper part of the boss for fastening with a flange nut and the rocker arm 4 can rotate back and forth around the fixed core rotating shaft 5. The other end of the rocker arm 4 is provided with a brake line fixing structure and The tail of the brake line is fixedly connected, and a wear-resistant brake lining 31 is provided on the inner side of the brake band assembly 3. The brake band assembly 3 and the wear-resistant brake lining 31 are arranged around the outside of the brake disc 2. Pull one end of the rocker arm 4 to the brake band assembly 3 to retract and tighten the brake disc 2 for braking. A noise reduction structure 6 is also provided between the brake band assembly 3 and the brake box housing 1. The noise reduction structure 6 is used to buffer the abnormal sound and noise generated by vibration and impact between the brake band assembly 3 and the brake box housing 1 when riding. By arranging the noise reduction structure 6 between the brake band assembly 3 and the brake box housing 1, the brake band assembly 3 can be directly isolated from direct contact with the brake box housing 1, thereby eliminating the abnormal sound and noise generated by vibration and impact between the two.

[0029] An optional implementation method, such as Figure 3-4 As shown, the noise reduction structure 6 is composed of a first elastic buffer 61 arranged on the side wall of the inner cavity of the brake box housing 1 or a second elastic buffer 62 arranged on the outside of the brake band assembly 3. Both methods can isolate the direct impact of the brake band assembly 3 and the brake box housing 1, and have a noise reduction effect.

[0030] An optional implementation method, such as Figure 2As shown: the noise reduction structure 6 is composed of a first elastic buffer 61 arranged on the side wall of the inner cavity of the brake box housing 1 and a second elastic buffer 62 arranged on the outside of the brake band assembly 3; this method has a better noise reduction effect.

[0031] An optional implementation method, such as Figure 3-4 As shown: the first elastic buffer 61 is a strip foam structure that is arranged at intervals or continuously on the inner cavity side wall of the gate box shell 1. The strip foam structure can be set as an integral strip or divided into multiple strips and attached to the inner cavity side wall of the gate box shell 1, or it can be connected in other ways; the second elastic buffer 62 is a foam convex structure that is arranged at intervals or continuously and wrapped around the outside of the brake band assembly 3 and opposite to the inner cavity side wall of the gate box shell 1. The foam convex structure can also be a small piece of foam, or a whole piece of strip foam attached to the outside of the brake band assembly 3, or it can be obtained by other sound-absorbing paper-like intervals wrapped around the brake band body, but is not limited to the above method.

[0032] An optional implementation method, such as Figure 1 、 4 5: The rocker arm 4 is also provided with an anti-backlash block 7, which is arranged on the outer surface between the connection of the fixed core shaft 5 on the rocker arm 4 and the brake line fixing structure; the anti-backlash block 7 is arranged as a fan-shaped structure, and a connecting structure adapted to the rocker arm 4 is arranged on one side of the fan-shaped structure; the anti-backlash block 7 is an injection-molded integral structure; by arranging the anti-backlash block 7 on the rocker arm 4, the installation gap between the brake rocker arm 4 and the frame is eliminated, thereby eliminating the safety hazard to children caused by the installation gap of the brake device.

[0033] The present invention improves the brake structure for children's bicycles in many aspects, eliminates the potential safety hazards as much as possible, and meets the safety requirements for the use of children's bicycles. In order to enhance the user experience of adult bicycles, the structure in this application can also be applied to adult bicycles.

[0034] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A holding brake for a baby carriage, comprising: A gate box housing (1), a brake disc (2) and a brake band assembly (3) built into the gate box housing (1), wherein one end of the brake band assembly (3) is pivotally fixed to one side of the gate box housing (1), and the other end is rotatably connected to a rocker arm (4), the middle part of the rocker arm (4) is rotatably connected to the gate box housing (1) through a fixed core rotating shaft (5), and the other end of the rocker arm (4) is provided with a brake line fixing structure, the inner side surface of the brake band assembly (3) is provided with a wear-resistant brake lining (31), the brake band assembly (3) and the wear-resistant brake lining (31) are arranged around the outer side of the brake disc (2) to brake the brake disc (2) by retracting and tightening it, and the characteristic is that a noise reduction structure (6) is further provided between the brake band assembly (3) and the gate box housing (1), and the noise reduction structure (6) is used to buffer abnormal sounds and noises generated by vibration and collision between the brake band assembly (3) and the gate box housing (1) when riding.

2. The holding brake for a baby carriage according to claim 1, characterized in that: The noise reduction structure (6) is a first elastic buffer (61) provided on the side wall of the inner cavity of the brake box housing (1) and a second elastic buffer (62) provided on the outside of the brake band assembly (3).

3. The holding brake for a baby carriage according to claim 2, characterized in that: The first elastic buffer (61) is a strip-shaped foam structure arranged at intervals or continuously on the inner cavity side wall of the gate box housing (1).

4. The holding brake for a baby carriage according to claim 2, characterized in that: The second elastic buffer (62) is a foam bump structure that is arranged at intervals or continuously covering the outside of the brake band assembly (3) and opposite to the inner cavity side wall of the brake box housing (1).

5. The holding brake for a baby carriage according to any one of claims 1 to 4, characterized in that: The rocker arm (4) is also provided with a backlash-eliminating block (7), which is arranged on the outer surface between the connection point of the fixed core rotating shaft (5) on the rocker arm (4) and the brake line fixing structure.

6. The holding brake for a baby carriage according to claim 5, characterized in that: The gap-eliminating block (7) is configured as a fan-shaped structure, and a connection structure adapted to the rocker arm (4) is provided on one side of the fan-shaped structure.

7. The holding brake for a baby carriage according to claim 6, characterized in that: The gap-eliminating block (7) is an integrally-molded structure.

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