Internal wiring brake device of folding bicycle

Abstract

The utility model relates to an internal wiring brake device of a folding bicycle, which is characterized by comprising a handle brake cable arranged in a front fork vertical pipe, a wheel side brake cable arranged on one side of a front fork and a brake mechanism, and the brake mechanism comprises a driving lever and a driven lever. The driving lever is arranged at the bottom in the front fork vertical pipe and rotationally connected with the front fork vertical pipe, the lifting end of the driving lever is fixedly connected with the handle brake cable, the driven lever is rotationally connected with the front fork, and the lifting end of the driven lever is fixedly connected with the wheel side brake cable. In the braking process, the handle brake cable is pulled upwards, the lifting end of the driving lever is synchronously driven to be pulled upwards, the lever end of the driving lever drives the lever end of the driven lever to be pressed downwards at the same time, and then the wheel side brake cable is pulled to execute the braking action. According to the utility model, the bending problem of the brake cable during folding is avoided by utilizing the lever mechanism with a simple structure, and the operation is very simple and quick.

Description

Technical Field

[0001] The utility model relates to a brake device, in particular to an inner-wire brake device suitable for a foldable bicycle or a foldable electric vehicle. Background Art

[0002] When folding a folding bicycle or electric folding vehicle, the relative positions of the folding parts change greatly, causing the length of the brake lines associated with the parts to change greatly. Therefore, the brake lines of basically all folding vehicles adopt an external routing solution. When folding, the brake lines outside the vehicle can be twisted and bent freely to adapt to this change. Although this solution is simple in structure and easy to implement, a large amount of brake lines are exposed outside the vehicle body before and after folding, which is not beautiful and will affect the size of the vehicle body after folding. In addition, the uncertain position of the brake lines after folding often requires users to spend time to sort out the redundant brake lines, which brings trouble to users, prolongs the operation time, affects the user experience, and also reduces the practicality of folding bicycles and electric folding vehicles. Summary of the invention

[0003] The utility model aims to provide an internal cable brake device for a folding bicycle which utilizes a lever mechanism with a simple structure to avoid the bending problem of the brake line when folding and also avoids the disadvantage of the brake line being entangled after folding.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: an internal cable brake device for a folding bicycle, the innovation of which is: comprising a handle brake cable arranged in a front fork vertical tube and connected to a brake handle, a wheel side brake cable connected to a wheel and arranged on one side of the front fork, and a brake mechanism, wherein the front fork vertical tube is assembled and connected to the front fork,

[0005] The brake mechanism comprises an active lever and a passive lever, wherein the active lever is arranged at the bottom of the front fork vertical tube and is rotatably connected thereto, the pulling end of the active lever is fixedly connected to one end of the handle brake line, the passive lever is rotatably connected to the front fork, and the pulling end of the passive lever is fixedly connected to one end of the wheel side brake line,

[0006] When riding, the lever end of the active lever is against the lever end of the passive lever. When braking, the handle brake line is pulled up, and the pulling end of the active lever is pulled up simultaneously, so that the lever end of the active lever drives the lever end of the passive lever to be pressed down at the same time, and then the wheel side brake line is pulled to perform the braking action.

[0007] In the above technical solution, one end of the handle brake line is fixedly connected to the pulling end of the active lever through the first connecting column, and one end of the wheel side brake line is fixedly connected to the pulling end of the passive lever through the second connecting column.

[0008] In the above technical solution, the active lever includes an active block, a rotating shaft and an active pin. One end of the handle brake line is fixedly connected to the pulling end of the active block. The lever end of the active block is rotatably supported on the front fork vertical tube through the rotating shaft. The end of the lever end of the active block is provided with an active pin that abuts against the passive lever.

[0009] In the above technical solution, the lifting end of the active block is provided with an avoidance groove for facilitating the passage of the handle brake line.

[0010] In the above technical solution, the passive lever includes a passive block, a connecting shaft and a passive pin. One end of the wheel side brake line is fixedly connected to the lifting end of the passive block. The lever end of the passive block is rotatably connected to the front fork through the connecting shaft. The end of the lever end of the passive block is provided with a passive pin that abuts against the active lever.

[0011] In the above technical solution, the lifting end of the passive block is provided with an avoidance groove for facilitating the passage of the wheel side brake wire.

[0012] The positive effect of the utility model is that after the internal cable routing brake device of the folding bicycle of the utility model is adopted, since the utility model comprises a handle brake line arranged in the front fork vertical tube and connected with the brake handle, a wheel side brake line connected with the wheel and arranged on one side of the front fork, and a brake mechanism, the front fork vertical tube is assembled and connected with the front fork,

[0013] The brake mechanism comprises an active lever and a passive lever, wherein the active lever is arranged at the bottom of the front fork vertical tube and is rotatably connected thereto, the pulling end of the active lever is fixedly connected to one end of the handle brake line, the passive lever is rotatably connected to the front fork, and the pulling end of the passive lever is fixedly connected to one end of the wheel side brake line,

[0014] When riding, the lever end of the active lever is against the lever end of the passive lever. When braking, the handle brake line is pulled up, and the pulling end of the active lever is pulled up simultaneously, so that the lever end of the active lever drives the lever end of the passive lever to be pressed down at the same time, thereby pulling the wheel side brake line to perform the braking action.

[0015] When the wheel is folded 180 degrees, the active lever and the passive lever are naturally separated, and there is no structural connection between the two, each of which remains small and beautiful, and there is no problem of bending or even entanglement of the brake line exposed on the outside of the vehicle body in the prior art.

[0016] Of course, when the wheel is unfolded from the folded state, the passive lever is slightly pressed down, which will generate a certain preload force, automatically removing the idle travel of the front section of the brake handle, thereby improving the safety of operation.

[0017] The advantages of the utility model structure are as follows:

[0018] 1. The structure is simple. In addition to the brake line required for braking, only two lever parts are added, which makes the product cost low;

[0019] 2. The operation is simple and quick. Users do not need to operate the brake lever mechanism separately when using it, and the operating habits do not need to be changed. When folding, the active lever and passive lever of the brake are naturally disengaged. When the front of the scooter is opened and riding, the active lever and passive lever also reach the coupling position when the front of the scooter reaches the unfolded position and is locked, so the braking operation can be performed normally.

[0020] 3. The wheel brake part and the brake handle part are not connected in space and can be replaced and repaired independently. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of a specific implementation mode of the utility model;

[0022] Figure 2 It is a three-dimensional enlarged structural schematic diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the braking state of the utility model;

[0024] Figure 4 It is a schematic diagram of the folded state of the wheel of the utility model. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and given embodiments, but is not limited thereto.

[0026] like Figure 1 , 2 As shown in Figures 3 and 4, an internal cable brake device for a folding bicycle comprises a handle brake cable 1 arranged in a front fork vertical tube 4 and connected to a brake handle, a wheel side brake cable 2 connected to a wheel and arranged on one side of a front fork 5, and a brake mechanism 3. The front fork vertical tube 4 is assembled and connected to the front fork 5.

[0027] The brake mechanism 3 includes an active lever 31 and a passive lever 32. The active lever 31 is arranged at the bottom of the front fork vertical tube 4 and is rotatably connected thereto. The pulling end of the active lever 31 is fixedly connected to one end of the handle brake line 1. The passive lever 32 is rotatably connected to the front fork 5. The pulling end of the passive lever 32 is fixedly connected to one end of the wheel side brake line 2.

[0028] When riding, the lever end of the active lever 31 is against the lever end of the passive lever 32. When braking, the handle brake line 1 is pulled up, and the pulling end of the active lever 31 is pulled up simultaneously, so that the lever end of the active lever 31 simultaneously drives the lever end of the passive lever 32 to be pressed down, thereby pulling the wheel side brake line 2 to perform the braking action.

[0029] like Figure 2 As shown, in order to realize quick connection between the handle brake line and the wheel side brake line and the corresponding active lever and passive lever, one end of the handle brake line 1 is fixedly connected to the lifting end of the active lever 31 through the first connecting column 6, and one end of the wheel side brake line 2 is fixedly connected to the lifting end of the passive lever 32 through the second connecting column 7.

[0030] like Figure 2 As shown, in order to further optimize the active lever structure and make the structure more reasonable, the active lever 31 includes an active block 311, a rotating shaft 312 and an active pin 313, one end of the handle brake line 1 is fixedly connected to the pulling end of the active block 311, and the lever end of the active block 311 is rotatably supported on the front fork vertical tube 4 through the rotating shaft 312, and the end of the lever end of the active block 311 is provided with an active pin 313 that abuts against the passive lever 32.

[0031] like Figure 2 As shown, in order to avoid interference between the handle brake line and the active block, the pulling end of the active block 311 is provided with an avoidance groove for the handle brake line 1 to pass through.

[0032] like Figure 2 As shown, in order to further optimize the passive lever structure and make the structure more reasonable, the passive lever 32 includes a passive block 321, a connecting shaft 322 and a passive pin 323, one end of the wheel side brake line 2 is fixedly connected to the pulling end of the passive block 321, the lever end of the passive block 321 is rotatably connected to the front fork 5 through the connecting shaft 322, and the end of the lever end of the passive block 321 is provided with a passive pin 323 that abuts against the active lever 31.

[0033] like Figure 2 As shown, in order to avoid interference between the wheel-side brake wire and the passive block, the lifting end of the passive block 321 is provided with an avoidance groove for the wheel-side brake wire 2 to pass through.

[0034] The working process of this utility model:

[0035] like Figure 1 , 2 As shown, when riding, the active pin 313 of the active lever 31 and the passive pin 323 of the passive lever 32 are offset, as shown in FIG. Figure 3As shown, when braking, the handle brake line 1 is pulled up under the action of the handle brake, and simultaneously drives the active block 311 of the active lever 31 to pull up, so that the active block 311 of the active lever 31 simultaneously drives the passive block 321 of the passive lever 32 to press down, thereby pulling the wheel side brake line 2 to make the wheel perform the braking action.

[0036] like Figure 4 As shown, when the wheel 8 is folded 180 degrees, the active lever 31 and the passive lever 32 are naturally separated, and there is no structural connection between the two, each of which maintains a small and beautiful state, and there is no problem of bending or even entanglement of the brake line exposed on the outside of the vehicle body in the prior art.

[0037] Of course, when the wheel 8 is unfolded from the folded state, the passive lever is slightly pressed down, which will generate a certain preload force, automatically remove the idle travel of the front section of the brake handle, and improve the safety of the operation.

[0038] The advantages of the utility model structure are as follows:

[0039] 1. The structure is simple. In addition to the brake line required for braking, only two lever parts are added, which makes the product cost low;

[0040] 2. The operation is simple and quick. Users do not need to operate the brake lever mechanism separately when using it, and the operating habits do not need to be changed. When folding, the active lever and passive lever of the brake are naturally disengaged. When the front of the scooter is opened and riding, the active lever and passive lever also reach the coupling position when the front of the scooter reaches the unfolded position and is locked, so the braking operation can be performed normally.

[0041] 3. The wheel brake part and the brake handle part are not connected in space and can be replaced and repaired independently.

[0042] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An internal cable brake device for a folding bicycle, Features: The invention comprises a handle brake line (1) arranged in a front fork vertical tube (4) and connected to a brake handle, a wheel side brake line (2) connected to a wheel and arranged on one side of a front fork (5), and a brake mechanism (3), wherein the front fork vertical tube (4) is assembled and connected to the front fork (5). The brake mechanism (3) comprises an active lever (31) and a passive lever (32), wherein the active lever (31) is arranged at the bottom of the front fork vertical tube (4) and is rotatably connected thereto, the pulling end of the active lever (31) is fixedly connected to one end of the handle brake line (1), the passive lever (32) is rotatably connected to the front fork (5), and the pulling end of the passive lever (32) is fixedly connected to one end of the wheel side brake line (2), When riding, the lever end of the active lever (31) abuts against the lever end of the passive lever (32). When braking, the handle brake line (1) is pulled upward, and the pulling end of the active lever (31) is simultaneously driven upward, so that the lever end of the active lever (31) simultaneously drives the lever end of the passive lever (32) to be pressed downward, thereby pulling the wheel side brake line (2) to perform the braking action.

2. The internal cable-routing brake device for a folding bicycle according to claim 1, Features: One end of the handle brake line (1) is fixedly connected to the pulling end of the active lever (31) via a first connecting column (6), and one end of the wheel side brake line (2) is fixedly connected to the pulling end of the passive lever (32) via a second connecting column (7).

3. The internal cable-routing brake device for a folding bicycle according to claim 1, Features: The active lever (31) comprises an active block (311), a rotating shaft (312) and an active pin (313); one end of the handle brake line (1) is fixedly connected to the lifting end of the active block (311); the lever end of the active block (311) is rotatably supported on the front fork vertical tube (4) through the rotating shaft (312); and the end of the lever end of the active block (311) is provided with an active pin (313) that abuts against the passive lever (32).

4. The internal cable routing brake device for a folding bicycle according to claim 3, Features: The lifting end of the active block (311) is provided with an avoidance groove for facilitating the passage of the handle brake line (1).

5. The internal cable routing brake device for a folding bicycle according to claim 1, Features: The passive lever (32) comprises a passive block (321), a connecting shaft (322) and a passive pin (323); one end of the wheel-side brake line (2) is fixedly connected to the lifting end of the passive block (321); the lever end of the passive block (321) is rotationally connected to the front fork (5) via the connecting shaft (322); and the end of the lever end of the passive block (321) is provided with a passive pin (323) that abuts against the active lever (31).

6. The internal cable routing brake device for a folding bicycle according to claim 5, Features: The lifting end of the passive block (321) is provided with an avoidance groove for facilitating the passage of the wheel-side brake wire (2).

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