Hub brake for scooter

Abstract

The utility model relates to the technical field of brakes, and discloses a hub brake for a scooter, which comprises a hub brake shell, a shoe component is arranged in the hub brake shell, the hub brake shell is provided with a center shaft hole, a cam shaft hole and a pivoting support shaft, the cam shaft hole and the pivoting support shaft are symmetrically arranged on two sides of the center shaft hole, and one end of the shoe component is abutted against the pivoting support shaft. The other end of the hub brake is rotationally connected to the hub brake shell through a cam shaft and a rocker arm, the outer side of the hub brake shell is provided with a frame installation limiting groove and a brake cable penetrating structure, and the rocker arm is further provided with a cable fixing structure corresponding to the brake cable penetrating structure and a brake cable containing structure used for folding and fixing the tail of a brake cable; the problems that after a brake cable is installed on an existing hub brake for the sliding plate, the tail end of the brake cable is freely externally hung and exposed, and the brake cable is prone to rubbing with a hub and the ground and is drawn into the hub to affect safe driving are solved.

Description

Technical Field

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

[0002] Scooters are becoming more and more popular due to their advantages such as being light and convenient, taking up little space, having a fast gliding speed and being economical and affordable.

[0003] The brake device is an essential component of a scooter to ensure its safe driving. The brake devices of existing scooters are basically one-point fixed brake devices, and the brake body is a disc-type brake pad structure. For example, CN 217435966U discloses a brake pad and a scooter, which includes a mounting portion, a V-shaped connecting portion, and a brake arc surface. When braking, the brake pad is directly stepped on with force, so that the brake pad only rubs against the top of the tire, achieving one-point braking. However, this brake structure is not suitable for scooters or electric scooters with high speeds. When the speed is too high or in an emergency, the single-foot brake cannot quickly stop the vehicle, which may result in unsatisfactory braking effect or even failure to brake.

[0004] To ensure safe braking, the industry uses brakes with other structures, such as CN212839077U, a hub brake for an electric scooter. However, after the hub brake of this structure is installed, the brake cable is fixed through the cable clamp assembly, and the tail end of the brake cable is freely hanging and exposed between the wheel hub and the frame. Due to the small size of the scooter itself and the limited space between the wheel hub and the frame, the freely exposed tail end of the brake cable can easily scratch the wheel hub and the ground, and may even be entangled in the wheel hub, causing the wheel hub to jam and affecting safe driving. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a hub brake for a scooter, which overcomes the problem in the existing technology that after the brake cable is installed, the tail end of the brake cable is freely exposed between the wheel hub and the frame, and the tail end of the brake cable is easily scratched against the wheel hub and the ground, and may even be entangled in the wheel hub and cause the wheel hub to get stuck, affecting safe driving.

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

[0007] The utility model is a hub brake for a scooter, comprising a hub brake shell, a shoe assembly being arranged in the hub brake shell, a central axis hole and camshaft holes and a pivot support shaft being symmetrically arranged on both sides of the central axis hole, one end of the shoe assembly being abutted against the pivot support shaft, and the other end being rotatably connected to the hub brake shell through the camshaft and the rocker arm, a frame mounting limit groove and a brake cable threading structure being provided on the outer side of the hub brake shell, a wire fixing structure corresponding to the brake cable threading structure and a brake cable storage structure for folding and fixing the tail of the brake cable on the rocker arm.

[0008] A further improvement is that: the rocker arm includes a rocker arm body, a cam mounting portion is provided at one end of the rocker arm body, and a brake wire connecting portion and an outwardly protruding support portion are provided at the other end, the outwardly protruding support portion is arranged on one side of the rocker arm body near the brake wire connecting portion, the brake wire storage structure is arranged on one side of the rocker arm body and on the same side or the opposite side as the outwardly protruding support portion, and the brake wire connecting portion is provided with a mounting hole adapted to the wire fixing structure.

[0009] A further improvement is that the brake cable storage structure is configured as a stop structure that bends and extends along one side of the rocker arm body and protrudes outward from the relative plane of the rocker arm body. The stop structure consists of a stop portion and a transition connection portion connecting the stop portion and the rocker arm body, and the tail of the brake cable is folded into the stop portion.

[0010] A further improvement is that a snap-fit fixing portion is further provided on one side or both sides of the stop portion.

[0011] A further improvement is that a convex reinforcement structure is also provided on the rocker arm body.

[0012] A further improvement is that a bent transition portion is provided between the rocker arm body and the cam mounting portion.

[0013] A further improvement is that the rocker arm is an integrally formed structure.

[0014] A further improvement is that the brake cable threading structure consists of a brake cable support seat fixed on the hub brake housing and an axially hollow threading screw assembly, and the brake cable support seat is provided with a threaded hole adapted to the threading screw assembly.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present application connects a rocker arm with a brake cable storage structure to the hub brake housing, and the brake cable is installed on the rocker arm through a brake cable threading structure provided on the outside of the hub brake housing and a cable fixing structure provided on the rocker arm. The freely exposed brake cable tail is guided and limited by the brake cable storage structure, effectively preventing the free end of the brake cable tail from scratching or getting stuck with the ground or the wheel hub, thereby affecting safe driving. At the same time, when the free tail is long, it can be wound and fixed to ensure safe driving. 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 schematic diagram of the explosion structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the rocker arm of the utility model.

[0020] Figure 4It is a schematic diagram of the three-dimensional structure of the rocker arm of the utility model from another direction.

[0021] Figure ID:

[0022] Hub brake housing 1, shoe assembly 2, middle shaft hole 11, camshaft hole 12, pivot support shaft 13, frame mounting limit slot 14, brake cable support seat 15, threading screw assembly 16, middle shaft sleeve 17, rocker arm 3, rocker arm body 31, cam mounting portion 32, brake cable connecting portion 33, outward convex support portion 34, brake cable storage structure 35, stop portion 351, transition connecting portion 352, snap fixing portion 353, convex reinforcement structure 36, bent transition portion 37, camshaft 4, wire fixing structure 5. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] The present invention will be further described below with reference to the accompanying drawings and in combination with embodiments.

[0026] Figure 1-4The utility model is shown as a hub brake for a scooter, comprising a hub brake housing 1, a shoe assembly 2 provided in the hub brake housing 1, a center shaft hole 11, a camshaft hole 12 and a pivot support shaft 13 provided on the hub brake housing 1, the camshaft hole 12 and the pivot support shaft 13 being symmetrically arranged on both sides of the center shaft hole 11, one end of the shoe assembly 2 abuts against the pivot support shaft 13, and the other end is clamped on both sides of one end of the camshaft 4, the camshaft 4 is installed in the camshaft hole 12, and the other end is rotatably connected to the outside of the hub brake housing 1 with the rocker arm 3, the outside of the hub brake housing 1 is provided with a frame mounting limit groove 14 and a brake line threading structure, and the rocker arm 3 is also provided with a The wire fixing structure 5 corresponding to the brake wire threading structure and the brake wire storage structure 35 for folding and fixing the brake wire tail; the brake wire is fixedly installed through the wire fixing structure 5 provided on the rocker arm 3, pulling the brake wire drives the rocker arm 3 and the camshaft 4 to rotate, and drives the shoe assembly 2 to expand relative to the wheel hub for braking; the brake wire fixed on the rocker arm, its freely exposed brake wire tail is guided and limited by the brake wire storage structure 35, effectively preventing the free end of the brake wire tail from scratching and getting stuck with the ground or the wheel hub, thereby affecting safe driving. At the same time, when the free tail is long, it can be wrapped and fixed on the brake wire storage structure 35 to ensure riding safety.

[0027] An optional implementation method, such as Figure 3-4 As shown: the rocker arm 3 includes a rocker arm body 31, a cam mounting portion 32 is provided at one end of the rocker arm body 31, a brake wire connecting portion 33 and an outward convex support portion 34 are provided at the other end, the outer end of the axis of the brake wire connecting portion 33 is set as a smooth structure, the outward convex support portion 34 is set on one side of the rocker arm body 31 near the brake wire connecting portion 33, and the outward convex support portion 34 is used to guide and limit the return spring sleeved on the brake wire; a mounting hole adapted for the wire fixing structure 5 is provided on the brake wire connecting portion 33, and the wire fixing structure 5 can be composed of a screw with a brake wire through hole provided on the shaft diameter portion and a fastening spiral, or it can be set as a wire-fastening structure with a pressure plate for fastening; a brake wire storage structure 35 is set on one side of the rocker arm body 31, It is arranged on the same side or the opposite side as the convex support portion 34, or on both sides of the rocker arm body 31, preferably on the opposite outer side of the convex support portion 34; the brake wire storage structure 35 is set as a stop structure that bends and extends along one side of the rocker arm body 31 and protrudes outward from the relative plane of the rocker arm body 31. The stop structure can be convex upward or downward along the plane of the rocker arm body 31, or it can be convex on both sides at the same time; the stop structure consists of a stop portion 351 and a transition connection portion 352 connecting the stop portion 351 and the rocker arm body 31. The tail of the brake wire is folded into the stop portion 351. When the freely exposed tail of the brake wire is long, it can be wrapped and fixed on the stop portion 351 to ensure that the tail of the brake wire is restricted.

[0028] In an optional embodiment, a snap-fit fixing portion 353 is further provided on one or both sides of the stop portion 351. The snap-fit fixing portion 353 can be arranged parallel to the axial direction of the rocker arm body 31, or can be arranged parallel to the axial direction of the rocker arm body 31 and then bent inward to better fix the brake cable.

[0029] In an optional embodiment, a convex reinforcement structure 36 is further provided on the rocker arm body 31; a bent transition portion 37 is provided between the rocker arm body 31 and the cam mounting portion 32; the rocker arm 3 is an integrally formed structure; wherein the brake cable storage structure 35 and the rocker arm body 31 can also be set as a split assembly structure.

[0030] In an optional embodiment, the brake cable threading structure consists of a brake cable support seat 15 fixed on the hub brake housing 1 and an axially hollow threading screw assembly 16. The brake cable support seat 15 is provided with a threaded hole adapted for the threading screw assembly 16. To meet the installation requirements, a middle shaft sleeve 17 of different specifications can be installed on the inner side of the middle shaft hole 11 of the hub brake housing 1 as needed.

[0031] 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 hub brake for a scooter, comprising a hub brake housing (1), a shoe assembly (2) provided in the hub brake housing (1), a center axis hole (11) and camshaft holes (12) and a pivot support shaft (13) symmetrically arranged on both sides of the center axis hole (11), one end of the shoe assembly (2) abuts against the pivot support shaft (13), and the other end is rotatably connected to the hub brake housing (1) through the camshaft (4) and the rocker arm (3), characterized in that: The outer side of the hub brake housing (1) is provided with a frame mounting limit groove (14) and a brake line threading structure, and the rocker arm (3) is further provided with a wire fixing structure (5) corresponding to the brake line threading structure and a brake line storage structure (35) for folding and fixing the brake line tail.

2. The hub brake for a scooter according to claim 1, characterized in that: The rocker arm (3) comprises a rocker arm body (31), one end of the rocker arm body (31) is provided with a cam mounting portion (32), and the other end is provided with a brake wire connecting portion (33) and an external convex support portion (34), the external convex support portion (34) is arranged on one side of the rocker arm body (31) near the brake wire connecting portion (33), the brake wire storage structure (35) is arranged on one side of the rocker arm body (31) and is arranged on the same side or on the opposite side as the external convex support portion (34), and the brake wire connecting portion (33) is provided with a mounting hole adapted to the wire fixing structure (5).

3. The hub brake for a scooter according to claim 2, characterized in that: The brake line storage structure (35) is configured as a stopper structure that bends and extends along one side of the rocker arm body (31) and protrudes outward from a plane relative to the rocker arm body (31). The stopper structure is composed of a stopper portion (351) and a transition connection portion (352) connecting the stopper portion (351) and the rocker arm body (31). The tail of the brake line is folded into the stopper portion (351).

4. The hub brake for a scooter according to claim 3, characterized in that: One side or both sides of the stop portion (351) are further provided with a snap-fit fixing portion (353).

5. The hub brake for a scooter according to claim 3, characterized in that: A convex reinforcement structure (36) is also provided on the rocker arm body (31).

6. The hub brake for a scooter according to claim 3, characterized in that: A bent transition portion (37) is provided between the rocker arm body (31) and the cam mounting portion (32).

7. The scooter hub brake according to any one of claims 1 to 6, characterized in that: The rocker arm (3) is an integrally formed structure.

8. The hub brake for a scooter according to claim 7, characterized in that: The brake wire threading structure comprises a brake wire support seat (15) fixed on the hub brake housing (1) and a threading screw assembly (16) arranged axially hollow, and a threaded hole adapted for the threading screw assembly (16) is provided on the brake wire support seat (15).

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