Bicycle brake handle with adjustable brake torque

Abstract

The utility model discloses a bicycle brake handle with adjustable brake torque, and relates to the technical field of bicycle brake structures. The device comprises a connecting block, a fixing plate, a rotating arm and a handle sleeve, the fixing plate is fixed to one side of the connecting block, an embedding opening is formed in one end of the connecting block, a rotating column is fixed in a movable groove, the rotating arm is movably connected to the peripheral side of the rotating column, the rotating arm is jointly and movably connected in the movable groove and the embedding opening, and a movable rod is fixed to one side of the rotating arm. The movable rod is arranged on the outer side of one end of the connecting block and forms an L-shaped structure with the rotating arm, the end, away from the rotating arm, in the movable rod is in through threaded connection with a compression bolt, the outer side of the movable rod is movably connected with a handle sleeve, and a screw hole is formed in the top of the connecting block. Through the arrangement of the connecting block, the fixing plate, the rotating arm and the handle sleeve, the problems that the brake torque of a bicycle brake handle cannot be adjusted, the using applicability to different persons is not good enough, and the handle part of a brake cable is prone to corrosion due to contact with air are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of bicycle brake structure, and in particular relates to a bicycle brake handle with adjustable braking torque. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is typically a small, two-wheeled land vehicle. The brake lever is one of the key components of a bicycle, used to control its speed. Disc brakes are a more advanced braking system, mainly composed of a brake lever, brake cable, and brake pads. The brake pads are mounted on a metal disc (called a brake disc) on the wheel. When the brake lever is squeezed, the brake cable pulls on the brake pads, creating friction with the brake disc to achieve the braking function. However, it still has the following drawbacks in practical use:

[0003] 1. When the bicycle brake lever is in operation, the brake lever is first installed directly. During operation, the braking torque of the lever is usually fixed. The braking torque can only be changed by the operator holding the lever in different positions. This is not very suitable for users with different hand strengths.

[0004] 2. During the operation of a bicycle brake lever, after prolonged use, the grease on the exposed brake lines will be lost due to exposure, and the brake lines will also oxidize and rust over time, resulting in insufficient braking smoothness and affecting braking performance. Utility Model Content

[0005] The purpose of this utility model is to provide a bicycle brake handle with adjustable braking torque. By setting a connecting block, fixing plate, rotating arm and handle sleeve, it solves the problems of bicycle brake handles not being able to adjust braking torque, not being suitable for different users, and the handle part of the brake cable being prone to corrosion due to contact with air.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an adjustable braking torque bicycle brake handle, comprising a connecting block, a fixing plate, a rotating arm, and a handle sleeve. A fixing plate is fixed to one side of the connecting block, and a movable groove is formed on one side of the fixing plate. A fitting opening is formed at one end of the connecting block, communicating with the movable groove. A vertical rotating column is fixed within the movable groove, and a rotating arm is movably connected to the periphery of the rotating column. The rotating arm is movably connected to both the movable groove and the fitting opening. One side of the rotating arm is flush with the end face of the connecting block where the fitting opening is formed, and a movable rod is fixed to one side of the rotating arm. The movable rod is positioned on the outer side of one end of the connecting block and forms an L-shape with the rotating arm. A clamping bolt is threaded through the end of the movable rod furthest from the rotating arm. A handle sleeve is movably connected to the outer side of the movable rod. A screw hole is formed at the top of the connecting block. During operation, the connecting block connects the fixing plate, fixing cylinder, rotating arm, and handle sleeve. The fixing plate rotatably connects the rotating arm to the movable rod. The rotating arm connects to the movable rod, and the handle sleeve and movable rod cooperate to change the braking torque.

[0008] Furthermore, a connecting plate is fixed to the end of the connecting block away from the handle sleeve, and a fixing cylinder is fixed to the end of the connecting plate away from the connecting block. The connecting block is movably connected to the conduit through the cooperation of the connecting plate and the fixing cylinder.

[0009] Furthermore, a connecting hole is provided through the centerline of the connecting block along the length direction, and a wire-passing hole with an inner diameter equal to that of the connecting hole is provided through the connecting plate along the central axis. The connecting hole and the wire-passing hole are connected, and the connecting block is movably connected to the wire rope through the connecting hole and the wire-passing hole.

[0010] Furthermore, the screw hole is connected to the connecting hole, and a sealing bolt is connected to the internal thread of the screw hole. The connecting block provides grease injection through the screw hole.

[0011] Furthermore, the connecting block has a wire groove on the side away from the fixing plate. The wire groove is connected to both the connecting hole and the fitting opening. The connecting plate and the fixing cylinder both have wire grooves corresponding to the wire groove positions. The wire groove on the connecting plate is connected to the wire hole, and the wire groove on the fixing cylinder is connected to the interior, providing a function for installing the brake cable.

[0012] Furthermore, a mounting bracket is fixed to the end of the fixing plate away from the connecting block, a pin opening is provided on the top of the rotating arm in the fitting port, a sliding port is provided on the bottom of the handle sleeve, the clamping bolt is slidably connected in the sliding port, the bolt head of the clamping bolt abuts against the bottom of the handle sleeve, the fixing plate is installed on the handlebar through the mounting bracket, the rotating arm is movably connected to the pin head through the pin opening, and the handle sleeve is slidably connected to the clamping bolt through the sliding port.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model solves the problem that the braking torque of a bicycle brake handle cannot be adjusted and its applicability to different users is not good by setting up a rotating arm and a handle sleeve. When different users have different braking forces, first loosen the clamping bolt, then pull the rotating arm and handle sleeve until a suitable braking torque is achieved when pressing and rotating the handle sleeve. Then, rotate the clamping bolt again and tighten it to complete the change of braking torque. This makes the braking torque of the bicycle brake handle changeable and improves its applicability to different users.

[0015] 2. This utility model solves the problem of easy corrosion of the handle part of the bicycle brake cable due to contact with air by setting a connecting block, a fixing plate and a rotating arm. After working for a certain period of time, insert an Allen wrench into the sealing bolt on the connecting block, unscrew the sealing bolt from the connecting block, and then inject grease into the screw hole, so that the grease enters the connecting hole and sticks to the brake cable. Through the movement of the brake cable, the grease is distributed on the brake cable outside the cable tube, reducing wear, oxidation and other damage to the brake cable outside the cable tube during operation, and increasing the durability of the brake cable. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional view of the assembly structure of a bicycle brake handle with adjustable braking torque;

[0018] Figure 2 A three-dimensional view of the cross-section of the connecting block section;

[0019] Figure 3 This is a three-dimensional view of the fixed cylinder structure;

[0020] Figure 4 This is a three-dimensional view of the fixed plate structure;

[0021] Figure 5 This is a 3D view of the swing arm structure;

[0022] Figure 6 A three-dimensional view of the cut-out structure of the handle sleeve.

[0023] Figure label:

[0024] 1. Connecting block; 101. Connecting hole; 102. Fitting opening; 103. Screw hole; 104. Sealing bolt; 105. Wire groove; 2. Fixing cylinder; 201. Connecting plate; 202. Wire hole; 3. Fixing plate; 301. Mounting bracket; 302. Movable groove; 303. Rotating column; 4. Rotating arm; 401. Pin; 402. Movable rod; 403. Clamping bolt; 5. Handle sleeve; 501. Sliding port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0027] Please see Figure 1-6 This utility model relates to an adjustable braking torque bicycle brake lever, comprising a connecting block 1, a fixing plate 3, a rotating arm 4, and a handle sleeve 5. A fixing plate 3 is fixed to one side of the connecting block 1, providing a path for the brake cable when the connecting block 1 is in operation. A mounting bracket 301 is connected to the fixing plate 3, providing a connection between the connecting block 1 and the handlebars. A movable groove 302 is provided on one side of the fixing plate 3, through which the rotating arm 4 is movably connected. A fitting opening 102 is provided at one end of the connecting block 1, through which the connecting block 1 is movably connected to the rotating arm 4. The fitting opening 102 communicates with the movable groove 302. A vertical rotating column 303 is fixed inside the movable groove 302, and the rotating arm 4 is movably connected to the periphery of the rotating column 303, so that when the rotating arm 4 is in operation, it moves along the rotating column 302. Rotating around the axis of 3, the movable groove 302 and the fitting port 102 are movably connected to the rotating arm 4. One side of the rotating arm 4 is flush with the end face of the connecting block 1 where the fitting port 102 is opened, and a movable rod 402 is fixed on one side of the rotating arm 4. The movable rod 402 is located on the outer side of one end of the connecting block 1 and forms an L-shaped structure with the rotating arm 4. When the movable rod 402 is rotated, the brake cable connected to the rotating arm 4 is pulled. A clamping bolt 403 is threaded through the end of the movable rod 402 away from the rotating arm 4. The clamping bolt 403 clamps and restricts the position between the movable rod 402 and the handle sleeve 5. The handle sleeve 5 is movably connected to the outer side of the movable rod 402. The handle sleeve 5 is movably connected to the movable rod 402, so that the brake torque can be changed after adjustment. A screw hole 103 is opened on the top of the connecting block 1.

[0028] Specifically, a connecting plate 201 is fixed to the end of the connecting block 1 away from the handle sleeve 5, and a fixing cylinder 2 is fixed to the end of the connecting plate 201 away from the connecting block 1. When the connecting block 1 is working, it connects to the fixing cylinder 2 through the connecting plate 201, and the end of the brake cable is movably connected through the fixing cylinder 2.

[0029] Furthermore, a connecting hole 101 is provided through the center line of the connecting block 1 along the length direction, and a wire-passing hole 202 with an inner diameter equal to that of the connecting hole 101 is provided through the connecting plate 201 along the central axis. The connecting hole 101 and the wire-passing hole 202 are connected. The connecting block 1 is movably connected to the brake cable through the connecting hole 101, and the connecting plate 201 passes the brake cable through the wire-passing hole 202.

[0030] Furthermore, the screw hole 103 is connected to the connecting hole 101, and the screw hole 103 is internally threaded with a sealing bolt 104. The connecting block 1 injects grease through the screw hole 103 and seals the screw hole 103 with the sealing bolt 104.

[0031] Furthermore, a wire groove 105 is provided on the side of the connecting block 1 away from the fixing plate 3. The wire groove 105 is connected to the connecting hole 101 and the fitting opening 102. The connecting plate 201 and the fixing cylinder 2 are both provided with wire grooves 105 corresponding to the positions of the wire grooves 105. The wire groove 105 on the connecting plate 201 is connected to the wire hole 202, and the wire groove 105 on the fixing cylinder 2 is connected to the interior. When installing the brake cable, the metal end of the brake cable conduit is inserted into the fixing cylinder 2, the brake cable is pulled out, and then passes through the wire groove 105 on the fixing cylinder 2, the connecting plate 201, and the connecting block 1. The brake cable is set in the connecting hole 101, the fitting opening 102, and the wire hole 202, and the brake cable installation operation can be performed.

[0032] The operation process of this embodiment is as follows: During operation, after working for a certain period of time, insert the Allen wrench into the sealing bolt 104 on the connecting block 1, unscrew the sealing bolt 104 from the connecting block 1, and then inject grease into the screw hole 103 so that the grease enters the connecting hole 101 and sticks to the brake cable. Through the movement of the brake cable, the grease is distributed on the brake cable outside the cable tube, reducing wear, oxidation and other damage to the brake cable outside the cable tube during operation. Specific Implementation Example 2

[0034] Please see Figure 1 , 56. Based on the specific embodiment one, the fixed plate 3 is fixed with a mounting bracket 301 at the end away from the connecting block 1. The top of the rotating arm 4 in the fitting opening 102 is provided with a pin opening 401, and the bottom of the handle sleeve 5 is provided with a sliding opening 501. The clamping bolt 403 is slidably connected in the sliding opening 501. The bolt head of the clamping bolt 403 abuts against the bottom of the handle sleeve 5. The fixed plate 3 is movably connected to the corresponding position on the bicycle head through the mounting bracket 301. With the cooperation of the other installation parts and the installation cooperation of the installation bolt, the brake handle is installed. The rotating arm 4 is movably connected to the pin head on the brake cable through the pin opening 401. The handle sleeve 5 is movably connected to the clamping bolt 403 through the sliding opening 501. The position between the movable rod 402 and the handle sleeve 5 is limited and determined by the clamping bolt 403.

[0035] The operation process of this embodiment is as follows: When installing the brake cable, first pull the handle sleeve 5 to pull the rotating arm 4 out of the fitting port 102 on the connecting block 1. Then insert the metal end of the brake cable conduit into the fixed cylinder 2, pull out the brake cable, and pass it through the wire groove 105 on the fixed cylinder 2, connecting plate 201, and connecting block 1. The brake cable is set in the connecting hole 101, fitting port 102, and wire hole 202. Insert the pin at the end of the brake cable into the pin hole 401. Then tighten the brake cable through the other end of the conduit so that the rotating arm 4 is brought into the fitting port 102, thus completing the installation of the brake cable. When different users have different braking forces, first loosen the clamping bolt 403, then pull the rotating arm 4 and handle sleeve 5 until there is a suitable braking torque when pressing and rotating the handle sleeve 5. Then rotate the clamping bolt 403 again and tighten the clamping bolt 403 to complete the change of braking torque.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A brake torque adjustable bicycle brake handle, comprising a connecting block (1), a fixed plate (3), a rotating arm (4) and a handle sleeve (5), characterized in that: The side of the connecting block (1) is fixed with a fixed plate (3), one side of the fixed plate (3) is provided with a movable slot (302), one end of the connecting block (1) is provided with a fitting port (102), the fitting port (102) is communicated with the movable slot (302), a vertical rotating column (303) is fixed in the movable slot (302), the rotating column (303) is movably connected with a rotating arm (4), the movable slot (302) and the fitting port (102) are movably connected with the rotating arm (4), one side of the rotating arm (4) is flush with the end face of the connecting block (1) provided with the fitting port (102), and the one side of the rotating arm (4) is fixed with a movable rod (402), the movable rod (402) is arranged outside one end of the connecting block (1) and forms an L-shaped structure with the rotating arm (4), one end of the movable rod (402) away from the rotating arm (4) is threadedly connected with a compression bolt (403), a handle sleeve (5) is movably connected outside the movable rod (402), and a screw hole (103) is formed in the top of the connecting block (1).

2. The brake torque adjustable bicycle brake handle of claim 1, wherein: The end of the connecting block (1) away from the handle sleeve (5) is fixed with a connecting disc (201), and one end of the connecting disc (201) away from the connecting block (1) is fixed with a fixed cylinder (2).

3. A brake torque adjustable bicycle brake handle according to claim 2, characterized in that: A communication hole (101) is formed in the connecting block (1) along the length direction, a threading hole (202) with the same inner diameter as the communication hole (101) is formed in the connecting disc (201) along the central axis, and the communication hole (101) is communicated with the threading hole (202).

4. A brake torque adjustable bicycle brake handle according to claim 3, characterized in that: The screw hole (103) is communicated with the communication hole (101), and a sealing bolt (104) is threadedly connected in the screw hole (103).

5. A brake torque adjustable bicycle brake handle according to claim 4, characterized in that: The connecting block (1) is provided with a wire slot (105) on the side away from the fixed plate (3), the wire slot (105) is communicated with the communication hole (101) and the fitting port (102), the connecting disc (201) and the fixed cylinder (2) are both provided with a wire slot (105) corresponding to the position of the wire slot (105), and the wire slot (105) on the connecting disc (201) is communicated with the threading hole (202), and the wire slot (105) on the fixed cylinder (2) is communicated with the inside.

6. The brake torque adjustable bicycle brake handle of claim 1, wherein: The end of the fixed plate (3) away from the connecting block (1) is fixed with a mounting frame (301), the top of the rotating arm (4) in the fitting port (102) is provided with a pin hole (401), the bottom of the handle sleeve (5) is provided with a sliding hole (501), the compression bolt (403) is slidably connected in the sliding hole (501), and the bolt head of the compression bolt (403) and the bottom of the handle sleeve (5) abut each other.

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