Brake cable adjusting structure and scooter

Abstract

The utility model provides a brake cable adjusting structure and a scooter, and relates to the technical field of scooters, the brake cable adjusting structure comprises a brake cable skin, a brake cable core, a drum brake rocker arm and an adjusting assembly, the adjusting assembly comprises a cable locking nut, a cable locking bolt, an adjusting screw rod, a shaft pin and an adjusting nut, the wire locking bolt, the shaft pin and the adjusting nut are all installed on the adjusting screw rod, the brake wire core penetrates through the wire locking bolt, the adjusting screw rod and the adjusting nut, and the shaft pin is installed on the drum brake rocker arm. Due to the fact that the structure that the brake cable skin and the brake cable core can be separated is adopted in the scheme, assembling is convenient, the adjusting mode is nut rotating adjusting, adjusting is easy, and the adjusting force can be well controlled; the extension line of the adjusting screw rod from the wire inlet end to the wire outlet end does not intersect with the ground in the direction, so that the gap between the tail end of the brake wire core and the ground can be increased, and the problem of scratching is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of scooters, in particular to a brake line adjustment structure and a scooter. Background Art

[0002] There are two main types of cable drum brakes available on the market:

[0003] One is that the brake cable core and the brake cable cover can be assembled separately (the cable core can be pulled out of the cable cover), and the cable core and the wheel hub brake rocker arm are locked and fixed. If the brake cable needs to be adjusted, the locking screw needs to be loosened with a tool, and then the brake cable is adjusted to the appropriate position, and then the fixing screw is tightened. The advantage of this method is that the brake cable cover is separated from the cable core. During production and assembly, the cable cover can be installed first and then the cable core. During repair, only the cable core can be replaced. The disadvantage is that tools are needed to adjust the brake (adjust the brake cable or loosen and tighten the fixing screw) and it is difficult to control the force during adjustment, and repeated adjustments may be required;

[0004] The second method is that the brake cable core and cable cover cannot be pulled out, and a screw is added to the end of the brake cable core to adjust the brake tightness. The advantage of this method is that the adjustment is convenient and quick. The disadvantage is that it is inconvenient to assemble, especially for products with internal wiring requirements. It is difficult to assemble and replace the cable core.

[0005] In view of the above-mentioned defects, this application is proposed. Utility Model Content

[0006] The utility model aims to provide a brake line adjustment structure and a scooter, which solve the problems of complicated adjustment and inconvenient assembly of the current cable drum brake.

[0007] To solve the above problems, the utility model provides a brake line adjustment structure, including a brake line skin, a brake line core, a drum brake rocker arm and an adjustment component, the adjustment component including a locking wire nut, a locking wire bolt, an adjusting screw, an axle pin and an adjusting nut, the locking wire bolt, the axle pin and the adjusting nut are all installed on the adjusting screw, the brake line core passes through the locking wire bolt, the adjusting screw and the adjusting nut in sequence, and the axle pin is installed on the drum brake rocker arm.

[0008] According to an embodiment of the utility model, an extension line of the insertion direction of the brake wire core in the adjusting screw does not intersect with the ground.

[0009] According to an embodiment of the utility model, there is an angle less than ° between the adjusting screw and the ground.

[0010] According to an embodiment of the utility model, a redirecting pin is provided on the drum brake rocker arm, and the brake cable core bypasses the redirecting pin and enters the adjustment assembly.

[0011] According to an embodiment of the utility model, the drum brake rocker arm has a bending portion, and the redirecting pin is arranged in the bending portion area.

[0012] According to an embodiment of the utility model, the redirecting pin is rotatably arranged or fixedly arranged.

[0013] According to an embodiment of the utility model, the axis of the adjusting screw is arranged along the natural extension direction of the brake cable core.

[0014] According to an embodiment of the utility model, the wire locking nut and the wire locking bolt are arranged at the wire inlet end of the wire locking bolt.

[0015] According to an embodiment of the utility model, the wire locking nut and the wire locking bolt are arranged at the wire outlet end of the wire locking bolt.

[0016] A scooter comprises the above-mentioned brake line adjustment structure.

[0017] The beneficial effect of the present invention is that when adjusting, it is only necessary to rotate the adjusting nut to move the adjusting screw, thereby adjusting the pull-out length of the brake cable core, thereby adjusting the braking force. Since the present solution adopts a separable structure of the brake cable skin and the brake cable core, it is more convenient to assemble, and the adjustment method is to rotate the nut for adjustment, which is simple to adjust and can better control the adjustment force; the extension line of the adjusting screw from the input end to the output end does not intersect with the ground in this direction, so that the gap between the end of the brake cable core and the ground can be increased to avoid scratching problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the brake line adjustment structure and the tire assembly;

[0020] Figure 2 It is the overall structural schematic diagram of the brake line adjustment structure;

[0021] Figure 3 This is an exploded view of the brake cable adjustment structure;

[0022] Figure 4 is a cross-sectional view of the adjustment assembly;

[0023] Figure 5 This is a schematic diagram of the overall structure of the brake line adjustment structure and tire assembly in Example 2. DETAILED DESCRIPTION

[0024] The following description is only used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are only for example, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the utility model.

[0025] Embodiment 1:

[0026] A brake line adjustment structure, such as Figure 1 , including a brake cable skin 11, a brake cable core 12, a drum brake rocker arm 14 and an adjusting component 15, the adjusting component 15 includes a locking wire nut 153, a locking wire bolt 154, an adjusting screw 152, an axle pin 155 and an adjusting nut 151, the locking wire bolt 154, the axle pin 155 and the adjusting nut 151 are all installed on the adjusting screw 152, the brake cable core 12 passes through the locking wire bolt 154, the adjusting screw 152 and the adjusting nut 151 in sequence, the axle pin 155 is installed on the drum brake rocker arm 14, the drum brake rocker arm 14 is connected to the drum brake assembly 10, the drum brake assembly 10 is installed on the tire assembly, and the drum brake rocker arm 14 drives the brake pad in the drum brake assembly 10 to move after the action.

[0027] Specifically, Figure 2-Figure 4 The shaft pin 155 is installed on the drum brake rocker arm 14, the adjusting screw 152 passes through the shaft pin 155 and is connected to the adjusting nut 151. The adjusting nut 151 is a hexagonal nut for easy operation. It has a cylindrical portion that abuts against the shaft pin 155. The wire locking nut 153 and the wire locking bolt 154 are arranged at the wire input end or the wire output end of the wire locking bolt 154. In this embodiment, they are arranged at the wire input end.

[0028] After the brake cable passes through the drum brake cable skin fixing point 17 , the brake cable core 12 continues to pass through the return spring 13 and enters the adjustment component 15 .

[0029] During adjustment, it is only necessary to rotate the adjusting nut 151 to move the adjusting screw 152, thereby adjusting the pull-out length of the brake cable core 12, thereby adjusting the braking force. Since the present solution adopts a separable structure of the brake cable skin and the brake cable core, it is more convenient to assemble, and the adjustment method is to rotate the nut for adjustment, which is simple to adjust and can better control the adjustment force.

[0030] Preferably, the extension line of the insertion direction of the brake wire core 12 in the adjusting screw 152 does not intersect with the ground. Figure 1 As shown, the extension line of the adjusting screw 152 from the inlet end to the outlet end does not intersect the ground in this direction, so that the gap between the end of the brake wire core 12 and the ground can be increased to avoid the scratching problem. Optionally, the adjusting screw 152 can be set parallel to the ground or inclined. In this embodiment, Figure 1, there is an angle of less than 90° between the adjusting screw 152 and the ground ( Figure 1 The right angle between the middle dotted line and the ground).

[0031] Furthermore, a redirecting pin 16 is provided on the drum brake rocker arm 14 , and the brake cable core 12 bypasses the redirecting pin 16 and enters the adjustment assembly 15 .

[0032] Optionally, the drum brake rocker arm 14 has a U-shaped bending portion 141, and the redirecting pin 16 is arranged in the area of ​​the bending portion 141. The two sides of the bending portion 141 limit the brake cable core 12 and also fix the redirecting pin 16.

[0033] Optionally, the redirecting pin 16 is rotatably arranged or fixedly arranged.

[0034] Embodiment 2: Different from Embodiment 1, Figure 5 The axis of the adjusting screw 152 is arranged along the natural extension direction of the brake cable core 12, that is, after the brake cable core 12 passes through the drum brake cable skin fixing point 17, the adjusting components are all in the natural extension direction of the brake cable core 12, and the direction of the brake cable core is not changed. The axle pin 155 is rotatably installed on the drum brake rocker arm 14. This method has a simple structure and is easy to install. However, when the wheel diameter is small, the ground clearance of the brake cable is small, which makes the brake cable easily scratch the ground. The method of changing the direction of the brake cable passing out in Example 1 solves this problem.

[0035] A scooter comprises the brake line adjustment structure in any one of the above embodiments.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed and modified in any way.

Claims

1. A brake line adjustment structure, characterized in that: The invention comprises a brake cable skin (11), a brake cable core (12), a drum brake rocker arm (14) and an adjusting component (15); the adjusting component (15) comprises a locking cable nut (153), a locking cable bolt (154), an adjusting screw rod (152), an axle pin (155) and an adjusting nut (151); the locking cable bolt (154), the axle pin (155) and the adjusting nut (151) are all mounted on the adjusting screw rod (152); the brake cable core (12) passes through the locking cable bolt (154), the adjusting screw rod (152) and the adjusting nut (151); the axle pin (155) is mounted on the drum brake rocker arm (14); and the pull-out length of the brake cable core (12) can be adjusted by the adjusting nut (151).

2. The brake line adjustment structure according to claim 1, characterized in that: The extension line of the insertion direction of the brake wire core (12) in the adjusting screw rod (152) does not intersect with the ground.

3. The brake line adjustment structure according to claim 2, characterized in that: There is an angle of less than 90° between the adjusting screw rod (152) and the ground.

4. The brake line adjustment structure according to claim 2 or 3, characterized in that: The drum brake rocker arm (14) is provided with a redirecting pin (16), and the brake wire core (12) bypasses the redirecting pin (16) and enters the adjustment component (15).

5. The brake line adjustment structure according to claim 4, characterized in that: The drum brake rocker arm (14) is provided with a bent portion (141), and the redirecting pin (16) is arranged in the area of ​​the bent portion (141).

6. The brake line adjustment structure according to claim 5, characterized in that: The redirecting pin (16) is rotatably arranged or fixedly arranged.

7. The brake line adjustment structure according to claim 1, characterized in that: The axis of the adjusting screw rod (152) is arranged along the natural extension direction of the brake wire core (12).

8. The brake line adjustment structure according to claim 6, characterized in that: The wire locking nut (153) and the wire locking bolt (154) are arranged at the wire inlet end of the wire locking bolt (154).

9. The brake line adjustment structure according to claim 6, characterized in that: The wire locking nut (153) and the wire locking bolt (154) are arranged at the wire outlet end of the wire locking bolt (154).

10. A scooter, characterized in that: The invention comprises a brake line adjustment structure as described in any one of claims 1 to 9.

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