Electric vehicle brake handle capable of preventing brake cable from falling off

Abstract

The utility model relates to the technical field of brake cable falling prevention, and discloses an electric vehicle brake handle capable of preventing a brake cable from falling off, which comprises a handle frame, a mounting seat is fixedly connected to the outer wall of the handle frame, two groups of symmetrically arranged side plates are fixedly connected to the surface of the mounting seat, a brake rod is hinged between the two groups of side plates, and the brake rod is fixedly connected with the mounting seat. A brake cable body is fixedly connected to the end of the brake rod, a supporting assembly is arranged on the end face of the side plate and comprises a sliding groove, and the sliding groove is formed in the end face of the side plate and extends inwards. According to the electric vehicle brake handle capable of preventing the brake cable from falling off, after a brake cable body penetrates through a round hole of a fixing plate, a rotating wheel is rotated to drive a two-way threaded rod to drive two sets of clamping plates to oppositely move and tightly clamp the brake cable, the fixing plate and a supporting rod can synchronously move along with the brake cable, and abrasion caused by relative friction between the brake cable and the inner wall of the round hole is avoided; the service life of the brake cable is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of anti-brake cable detachment technology, specifically an electric vehicle brake lever to prevent brake cable detachment. Background Technology

[0002] Electric vehicles, motorcycles, and other vehicles are equipped with brake levers for braking while driving. Brake levers, also known as brake handles, are devices used to stop or reduce the speed of moving locomotives, vehicles, and other transportation tools or machinery. The safety of brake levers directly affects the life safety of the driver. Electric vehicles are small and lightweight means of transportation. Due to their light weight and fast acceleration, they are especially popular among commuters. While riding an electric vehicle, it is necessary to frequently use the brakes to control the speed.

[0003] According to a public notice (Announcement No.: CN222247530U) regarding an electric vehicle brake handle designed to prevent brake cable detachment, the aforementioned application incorporates an anti-detachment mechanism. During use, the connecting seat, outer cylinder, and inner cylinder work together to support the connection between the brake cable body and the outer shell, preventing the connection from detaching due to prolonged bending and stress, thus facilitating better braking performance.

[0004] However, when braking, the brake cable slides along the axis of the through hole, and when the brake is released, the cable returns to its original position. Each braking action creates bidirectional friction on the inner wall of the through hole, which accumulates over time and causes wear, fraying, and even local breakage of the steel wires on the surface of the cable. Utility Model Content

[0005] The purpose of this invention is to provide an electric vehicle brake lever that prevents the brake cable from falling off, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric vehicle brake handlebar for preventing brake cable detachment, comprising a handlebar frame, a mounting base fixedly connected to the outer wall of the handlebar frame, two sets of symmetrically arranged side plates fixedly connected to the surface of the mounting base, a brake lever hinged between the two sets of side plates, a brake cable body fixedly connected to the end of the brake lever, a support assembly provided on the end face of the side plate, the support assembly including a groove, the groove being formed on the end face of the side plate and extending inward, a support rod slidably connected inside the groove, a fixing plate fixedly connected to the end of the support rod, a circular hole for the brake cable body to pass through the side wall of the fixing plate, an installation groove communicating with the circular hole on the surface of the fixing plate, two sets of symmetrically arranged sliders slidably connected inside the installation groove, a clamping plate fixedly connected to the bottom end of the sliders, and the two sets of sliders being threadedly connected by a bidirectional threaded rod.

[0007] Preferably, the side wall of the side plate is provided with a reset assembly, the reset assembly includes a connecting groove, the connecting groove is formed on the side wall of the side plate and communicates with the sliding groove, a limit block is slidably connected inside the connecting groove, the limit block is fixedly connected to the side wall of the support rod, and the limit block and the connecting groove are elastically connected by a reset spring.

[0008] Preferably, the bidirectional threaded rod passes through and is rotatably connected to the end of the fixed plate, and a rotating wheel is fixedly connected to the end of the bidirectional threaded rod.

[0009] Preferably, the clamping plate is located inside the circular hole.

[0010] Preferably, the side wall of the limiting block has a through hole, and a guide rod is slidably connected in the through hole, the end of the guide rod being fixedly connected to the inner wall of the connecting groove.

[0011] Preferably, the reset spring is sleeved on the outer wall of the guide rod.

[0012] Compared with the prior art, this utility model provides an electric vehicle brake lever to prevent brake cable detachment, which has the following beneficial effects:

[0013] 1. This electric vehicle brake lever prevents the brake cable from falling off. After the brake cable body passes through the round hole of the fixing plate, the rotating wheel drives the double-threaded rod, which drives the two sets of clamping plates to move towards each other and tightly clamp the brake cable. This allows the fixing plate and support rod to move synchronously with the brake cable, avoiding wear caused by relative friction between the brake cable and the inner wall of the round hole, and extending the service life of the brake cable.

[0014] 2. This electric vehicle brake lever with anti-brake cable detachment design features a spring that quickly releases its elastic potential energy when the user releases the brake lever. This energy pushes the support rod, fixing plate, and brake cable back to their original positions via a limit block, automatically returning the brake lever to its initial position without manual adjustment, simplifying the operation process. Simultaneously, the continuous elastic force exerted by the return spring on the limit block under normal conditions is transmitted to the brake cable through the support assembly, ensuring the brake cable maintains appropriate tension and preventing excessive braking travel due to cable slack. This ensures rapid transmission of braking commands and improves riding safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the support component structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the fixing plate structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the reset component structure of this utility model.

[0019] In the diagram: 1. Handlebar frame; 2. Mounting base; 3. Side plate; 4. Brake lever; 5. Brake cable body; 6. Support assembly; 61. Slide groove; 62. Support rod; 63. Fixing plate; 64. Round hole; 65. Mounting slot; 66. Slider; 67. Clamping plate; 68. Two-way threaded rod; 69. Rotary wheel; 7. Reset assembly; 71. Connecting groove; 72. Limiting block; 73. Guide rod; 74. Reset spring. Detailed Implementation

[0020] like Figures 1-4 As shown, this utility model provides a technical solution: an electric vehicle brake handle to prevent brake cable detachment, including a handlebar frame 1, a mounting base 2 fixedly connected to the outer wall of the handlebar frame 1, two sets of symmetrically arranged side plates 3 fixedly connected to the surface of the mounting base 2, a brake lever 4 hinged between the two sets of side plates 3, and a brake cable body 5 fixedly connected to the end of the brake lever 4. The brake lever 4 is a lever arm component operated by the user, converting the hand pressing action into the pulling force of the brake cable body 5, thereby controlling the braking device of the electric vehicle to achieve deceleration or stopping.

[0021] A support assembly 6 is provided on the end face of the side plate 3. The support assembly 6 includes a slide groove 61, which is opened on the end face of the side plate 3 and extends inward. A support rod 62 is slidably connected inside the slide groove 61. A fixing plate 63 is fixedly connected to the end of the support rod 62. A circular hole 64 is opened on the side wall of the fixing plate 63 for the brake cable body 5 to pass through. The slide groove 61 provides a sliding track for the support rod 62, allowing the support rod 62 to move synchronously with the pulling or resetting of the brake cable body 5. The brake cable body 5 passes through the circular hole 64 and is supported by the support rod 62, ensuring that the brake cable is always stably supported and does not deviate during the movement.

[0022] The surface of the fixing plate 63 has a mounting groove 65 that communicates with the circular hole 64. Two sets of symmetrically arranged sliders 66 are slidably connected inside the mounting groove 65. A clamping plate 67 is fixedly connected to the bottom end of each slider 66, and the clamping plate 67 is located inside the circular hole 64. The two sets of sliders 66 are threaded together by a bidirectional threaded rod 68, which passes through and is rotatably connected to the end of the fixing plate 63. A rotating wheel 69 is fixedly connected to the end of the bidirectional threaded rod 68. The rotation of the rotating wheel 69 causes the bidirectional threaded rod 68 to drive the two sets of sliders 66 connected to it to move towards each other or away from each other. The two clamping plates 67 clamp and fix the brake cable body 5 inside the circular hole 64, allowing the fixing plate 63 and support rod 62 to move synchronously with the brake cable body 5, preventing wear caused by friction between the brake cable body 5 and the circular hole 64.

[0023] The side wall of the side plate 3 is provided with a reset assembly 7. The reset assembly 7 includes a connecting groove 71, which is opened on the side wall of the side plate 3 and communicates with the slide groove 61. A limit block 72 is slidably connected inside the connecting groove 71. The limit block 72 is fixedly connected to the side wall of the support rod 62. The movement of the support rod 62 drives the limit block 72 to slide synchronously, thereby compressing the reset spring 74. The limit block 72 can effectively prevent the support rod 62 from coming out of the slide groove 61.

[0024] The side wall of the limiting block 72 has a through hole, and a guide rod 73 is slidably connected in the through hole. The end of the guide rod 73 is fixedly connected to the inner wall of the connecting groove 71. The limiting block 72 and the connecting groove 71 are elastically connected by a return spring 74, which is sleeved on the outer wall of the guide rod 73. The return spring 74 is in a naturally extended state under normal conditions. When the user presses the brake lever 4, the brake lever 4 pulls the brake cable body 5, causing the support rod 62 and the limiting block 72 to slide along the slide groove 61 and the connecting groove 71. At this time, the limiting block 72 will compress the return spring 74. When the user releases the brake lever 4, the return spring 74 releases its elastic potential energy, pushing the limiting block 72 and the support rod 62 to slide in the opposite direction, thereby causing the brake lever 4 to return to its initial position, preparing for the next braking. At the same time, the elastic force of the return spring 74 can also keep the support component 6 at a certain tension on the brake cable, preventing the brake cable from becoming too loose and causing the braking stroke to be too long.

[0025] In this invention, during use, the brake cable body 5 and the support assembly 6 must first be assembled and fixed: the operator rotates the rotating wheel 69, causing the bidirectional threaded rod 68 to rotate. Since the bidirectional threaded rod 68 and the two sets of sliders 66 are threadedly connected and the threads are in opposite directions, the two sets of sliders 66 will move in opposite directions along the mounting groove 65, thereby causing the two sets of clamping plates 67 inside the circular hole 64 to separate from each other, forming a gap through which the brake cable body 5 can pass. Then, one end of the brake cable body 5 is passed through the circular hole 64 in sequence and fixedly connected to the end of the brake rod 4. Next, the rotating wheel 69 is rotated in the opposite direction, causing the bidirectional threaded rod 68 to drive the two sets of sliders 66 to move towards each other. The two sets of clamping plates 67 then move closer to each other and clamp tightly on the outer wall of the brake cable body 5, completing the fixation of the brake cable body 5 and the fixing plate 63. This ensures that the fixing plate 63 and the support rod 62 can move synchronously with the brake cable body 5 during subsequent use, avoiding wear caused by relative friction between the two.

[0026] When the user needs to brake, they press the brake lever 4 by hand. The brake lever 4 rotates around the hinge point with the side plate 3, generating tension at its end, which acts on the brake cable body 5, causing it to move in the braking direction. Since the brake cable body 5 is fixed to the fixing plate 63 by the clamp 67, the brake cable body 5 will simultaneously pull the fixing plate 63 and the support rod 62, causing the support rod 62 to slide along the groove 61 on the end face of the side plate 3. At the same time, the limiting block 72, which is fixedly connected to the support rod 62, will slide synchronously along the connecting groove 71, and compress the return spring 74 sleeved on the outer wall of the guide rod 73, causing the return spring 74 to undergo elastic deformation and store elastic potential energy. During this process, the support rod 62 always slides stably along the groove 61, supporting the brake cable body 5 through the fixing plate 63 and the round hole 64, effectively preventing the brake cable body 5 from shifting or falling off when pulled, ensuring that the brake cable body 5 can stably transmit tension, thereby controlling the electric vehicle braking device to decelerate or stop.

[0027] When the user releases the brake lever 4, the return spring 74 releases its stored elastic potential energy, generating a reverse thrust that acts on the limiting block 72. This pushes the limiting block 72 to slide in the reverse direction along the connecting groove 71. Simultaneously, it causes the support rod 62 and the fixing plate 63 to move in the reverse direction along the sliding groove 61. The fixing plate 63 pulls the brake cable body 5 back to its original position via the clamping plate 67, thereby causing the brake lever 4 to rotate in the reverse direction around the hinge point, returning to its initial position and preparing for the next braking operation. Throughout the entire process, the return spring 74 maintains a certain elasticity, applying continuous tension to the brake cable body 5 through the limiting block 72, support rod 62, and fixing plate 63. This prevents the brake cable body 5 from loosening due to long-term use, effectively preventing excessive brake travel caused by brake cable loosening, and ensuring the sensitivity and reliability of the braking operation.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A brake lever for electric vehicles to prevent brake cable detachment, comprising a handlebar frame (1), characterized in that: A mounting base (2) is fixedly connected to the outer wall of the handlebar frame (1). Two sets of symmetrically arranged side plates (3) are fixedly connected to the surface of the mounting base (2). A brake lever (4) is hinged between the two sets of side plates (3). A brake cable body (5) is fixedly connected to the end of the brake lever (4). A support assembly (6) is provided on the end face of the side plate (3). The support assembly (6) includes a groove (61). The groove (61) is opened on the end face of the side plate (3) and extends inward. A support is slidably connected inside the groove (61). The rod (62) is fixedly connected to a fixing plate (63) at its end. The side wall of the fixing plate (63) is provided with a round hole (64) for the brake cable body (5) to pass through. The surface of the fixing plate (63) is provided with a mounting groove (65) that communicates with the round hole (64). Two sets of symmetrically arranged sliders (66) are slidably connected inside the mounting groove (65). The bottom end of the slider (66) is fixedly connected to a clamp (67). The two sets of sliders (66) are threaded together by a bidirectional threaded rod (68).

2. The electric vehicle brake lever for preventing brake cable detachment according to claim 1, characterized in that: The side wall of the side plate (3) is provided with a reset assembly (7). The reset assembly (7) includes a connecting groove (71). The connecting groove (71) is opened on the side wall of the side plate (3) and communicates with the sliding groove (61). A limit block (72) is slidably connected inside the connecting groove (71). The limit block (72) is fixedly connected to the side wall of the support rod (62). The limit block (72) and the connecting groove (71) are elastically connected by a reset spring (74).

3. The electric vehicle brake lever for preventing brake cable detachment according to claim 1, characterized in that: The bidirectional threaded rod (68) passes through and is rotatably connected to the end of the fixed plate (63), and a rotating wheel (69) is fixedly connected to the end of the bidirectional threaded rod (68).

4. The electric vehicle brake lever for preventing brake cable detachment according to claim 1, characterized in that: The clamp (67) is located inside the circular hole (64).

5. The electric vehicle brake lever for preventing brake cable detachment according to claim 2, characterized in that: The side wall of the limiting block (72) has a through hole, and a guide rod (73) is slidably connected in the through hole. The end of the guide rod (73) is fixedly connected to the inner wall of the connecting groove (71).

6. The electric vehicle brake lever for preventing brake cable detachment according to claim 2, characterized in that: The reset spring (74) is sleeved on the outer wall of the guide rod (73).

Images