Automatic tightening structure for brake line

Abstract

This invention provides an automatic brake cable tightening mechanism, comprising a brake component, a first transmission assembly, a second transmission assembly, a third transmission assembly, and a tightening assembly. The invention requires minimal external components. Simply squeezing the brake handle fully drives the internal gear structure to automatically tighten the brake cable, achieving maintenance-free operation throughout the bicycle's lifecycle and saving labor. Furthermore, the device is simple in structure, low in cost, and automatically shortens the brake cable, ensuring lifetime maintenance-free operation.

Description

Technical Field

[0001] The invention belongs to the field of vehicle brake testing equipment, and in particular relates to an automatic tightening structure for a vehicle brake line. Background Art

[0002] Currently, when adjusting the brake lever distance in factories, manual testing is required. In existing technology, when the brake cable is too long, the brake cable must be manually shortened to adjust the lever distance. This testing method requires high equipment investment, increases labor costs, and lengthens adjustment time, resulting in high manual testing fatigue.

[0003] In view of this, we have developed this brake line adjustment method, which does not require external manual debugging, improves production efficiency, greatly reduces production testing costs, and reduces defective outflow rates. Summary of the Invention

[0004] In view of this, the present invention aims to propose an automatic tightening structure for the brake cable to solve the problem that in the existing testing process, manual operation of the brake cable length is required to adjust the hand brake, resulting in high equipment investment, increased labor costs, long adjustment time, and high manual inspection fatigue.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] An automatic tightening structure for a brake line, comprising a brake part, a No. 1 transmission assembly, a No. 2 transmission assembly, a No. 3 transmission assembly and a tightening assembly. The brake part is mounted to one end of a brake handle, the brake part is transmission-connected to the No. 1 transmission assembly, the No. 1 transmission assembly is transmission-connected to the No. 2 transmission assembly, the No. 2 transmission assembly is transmission-connected to the No. 3 transmission assembly, a tightening assembly is mounted on one side of the No. 3 transmission assembly, and a brake line connected to the brake handle runs through the interior of the tightening assembly.

[0007] Furthermore, the brake component is an incomplete gear, and the brake component is engaged with the first transmission assembly for transmission.

[0008] Furthermore, the No. 1 transmission assembly includes a cylindrical gear and a No. 1 bevel gear, the cylindrical gear is engaged with the brake member for transmission, and a No. 1 bevel gear is provided on the top of the cylindrical gear, and the No. 1 bevel gear is engaged with the No. 2 transmission assembly for transmission.

[0009] Furthermore, the second transmission assembly includes a second bevel gear and a cylinder, one end of the second bevel gear is meshed with the first bevel gear for transmission, the other end of the second bevel gear is connected to one end of the cylinder, and the other end of the cylinder is rotatably connected to the third transmission assembly.

[0010] Furthermore, a clearance groove is opened inside the No. 3 transmission component, and an internal thread is provided in the clearance groove. The No. 3 transmission component is rotatably connected to the other end of the cylinder through the clearance groove, and the No. 3 transmission component is installed with a tightening component away from the central axis of one end of the cylinder.

[0011] Furthermore, the tightening assembly includes a No. 1 tightening wheel, a No. 2 tightening wheel and a No. 3 tightening wheel. One end of the No. 1 tightening wheel is installed on the central axis of one end of the No. 3 transmission assembly. The No. 1 tightening wheel is provided with a No. 2 tightening wheel and a No. 3 tightening wheel on both sides of the other end. The bottoms of the No. 2 tightening wheel and the No. 3 tightening wheel are both installed in the brake housing.

[0012] Compared with the prior art, the automatic tightening structure for brake cables described in the present invention has the following advantages:

[0013] The automatic brake cable tightening mechanism described in this invention requires simple peripherals. By manually squeezing the brake handle to the bottom, the internal gear structure is driven to automatically tighten the brake cable, achieving maintenance-free operation throughout the bicycle's lifecycle. This also saves labor. With its simple structure and low cost, it automatically shortens the brake cable, ensuring lifetime maintenance-free operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of a normal unbraked position according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the brake bottoming position according to an embodiment of the present invention;

[0017] Figure 3 for Figure 2 A is an enlarged schematic diagram.

[0018] Description of reference numerals:

[0019] 1. Brake parts; 2. Transmission assembly No. 1; 21. Cylindrical gear; 22. Bevel gear No. 1; 3. Transmission assembly No. 2; 31. Bevel gear No. 2; 32. Cylinder; 4. Transmission assembly No. 3; 5. Tensioning assembly; 51. Tensioning pulley No. 1; 52. Tensioning pulley No. 2; 53. Tensioning pulley No. 3; 6. Brake handle. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0024] like Figures 1 to 3 As shown, an automatic tightening structure for a brake line includes a brake component 1, a No. 1 transmission component 2, a No. 2 transmission component 3, a No. 3 transmission component 4 and a tightening component 5. The brake component 1 is installed to one end of a brake handle 6. The brake component 1 is transmission-connected to the No. 1 transmission component 2, the No. 1 transmission component 2 is transmission-connected to the No. 2 transmission component 3, the No. 2 transmission component 3 is transmission-connected to the No. 3 transmission component 4, and a tightening component 5 is installed on one side of the No. 3 transmission component 4. The brake line connected to the brake handle 6 runs through the inside of the tightening component 5.

[0025] This invention is suitable for applications where brake cables are automatically adjusted to the appropriate distance. It can help factories improve production efficiency and reduce the time required to adjust brake cable lengths during the production process. Conventional brake cable adjustment methods require manual intervention. This invention, through structural adjustments to the handlebar brake components, enables quick brake cable adjustment without manual intervention, significantly reducing production costs and the rate of defective products.

[0026] In a preferred embodiment of the present invention, the brake member 1 is a partial gear that meshes with the first transmission assembly 2. In this embodiment, because the brake member 1 is a partial gear, the brake member 1 and the first transmission assembly 2 intermittently mesh, ensuring that the brake member 1 drives the first transmission assembly 2 to rotate only when the brake handle 6 is fully braked.

[0027] In a preferred embodiment of the present invention, the No. 1 transmission assembly 2 includes a cylindrical gear 21 and a No. 1 bevel gear 22. The cylindrical gear 21 is engaged with the brake member 1 for transmission. A No. 1 bevel gear 22 is provided on the top of the cylindrical gear 21. The No. 1 bevel gear 22 is engaged with the No. 2 transmission assembly 3 for transmission. In this embodiment, the bottom of the cylindrical gear 21 is installed in the brake housing to ensure that the cylindrical gear 21 can rotate but cannot move.

[0028] In a preferred embodiment of the present invention, the No. 2 transmission assembly 3 includes a No. 2 bevel gear 31 and a cylinder 32. One end of the No. 2 bevel gear 31 is meshed with the No. 1 bevel gear 22 for transmission, and the other end of the No. 2 bevel gear 31 is connected to one end of the cylinder 32. The other end of the cylinder 32 is rotatably connected to the No. 3 transmission assembly 4. In this embodiment, the No. 2 transmission assembly 3 is installed in the brake housing to ensure that the No. 2 transmission assembly 3 can rotate but cannot move, and the No. 2 bevel gear 31 and the cylinder 32 are fixedly connected to ensure that the two rotate synchronously.

[0029] In a preferred embodiment of the present invention, the third transmission assembly 4 is internally provided with a clearance groove, which is internally threaded. The third transmission assembly 4 is rotatably connected to the other end of the cylindrical body 32 via the clearance groove. The tightening assembly 5 is mounted on the central axis of the third transmission assembly 4 away from one end of the cylindrical body 32. In this embodiment, the other end of the cylindrical body 32 is provided with external threads, and the third transmission assembly 4 is internally threaded. The cylindrical body 32 and the third transmission assembly 4 are rotatably connected. Because the cylindrical body 32 can only rotate and cannot move forward or backward, the rotation of the cylindrical body 32 can drive the third transmission assembly 4 to move linearly and while rotating away from the cylindrical body 32.

[0030] In a preferred embodiment of the present invention, the tightening assembly 5 includes a No. 1 tightening wheel 51, a No. 2 tightening wheel 52 and a No. 3 tightening wheel 53. One end of the No. 1 tightening wheel 51 is installed on the central axis of one end of the No. 3 transmission assembly 4, and the No. 1 tightening wheel 51 is provided with a No. 2 tightening wheel 52 and a No. 3 tightening wheel 53 on both sides of the other end. The bottoms of the No. 2 tightening wheel 52 and the No. 3 tightening wheel 53 are both installed in the brake housing. In this embodiment, the No. 2 tightening wheel 52 and the No. 3 tightening wheel 53 are arranged in parallel, and the brake line passes through the No. 2 tightening wheel 52, the No. 1 tightening wheel 51, and the No. 3 tightening wheel 53 in sequence and is then installed in the brake handle 6.

[0031] The invention requires simple peripherals, and can drive the internal gear structure by squeezing the brake handle to the bottom to automatically tighten the brake cable, thereby achieving maintenance-free operation throughout the entire life cycle of the bicycle and saving labor.

[0032] Example 1

[0033] The automatic tightening structure has the advantages of simple structure, low cost, automatic adjustment of the gate wire length and lifetime maintenance-free.

[0034] The terminal includes: a brake wire, a gear structure, a transmission structure, and a tightening structure. Figure 1-2 The working principle of automatic tightening of the brake line is introduced:

[0035] Press the brake handle as Figure 1 , Figure 2 The position diagram is a schematic diagram of the overall action, including the normal unbraked position and the fully braked position.

[0036] Specifically, the brake member 1 rotates along with the angle of the brake handle 6. When in the normal non-braking position, the gear teeth of the brake member 1 are not in contact with the gear teeth of the No. 1 transmission assembly 2, and will not trigger the No. 1 transmission assembly 2 to rotate. Figure 2 As shown, the gear teeth of the brake member 1 and the gear teeth of the first transmission assembly 2 are in contact and rotate.

[0037] The first transmission assembly 2 drives the second transmission assembly 3 to rotate, and the rotation of the second transmission assembly 3 drives the third transmission assembly 4 to move linearly.

[0038] The linear movement of the third transmission assembly 4 drives the tightening assembly 5 to bend the brake wire, achieving the purpose of automatically tightening the brake wire. In actual use, the linear movement direction of the third transmission assembly 4 is in the direction of the brake wire movement, and the tightening assembly 5 bends the brake wire, thereby increasing the gap between the brake wires and ultimately achieving the purpose of automatically tightening the brake wire. This helps maintain the original state of the braking force.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic tightening structure for a brake cable, characterized by: The invention comprises a brake component (1), a No. 1 transmission component (2), a No. 2 transmission component (3), a No. 3 transmission component (4) and a tightening component (5), wherein the brake component (1) is mounted on one end of a brake handle (6), the brake component (1) is in transmission connection with the No. 1 transmission component (2), the No. 1 transmission component (2) is in transmission connection with the No. 2 transmission component (3), the No. 2 transmission component (3) is in transmission connection with the No. 3 transmission component (4), a tightening component (5) is mounted on one side of the No. 3 transmission component (4), and a brake wire connected to the brake handle (6) is passed through the interior of the tightening component (5); The brake member (1) is an incomplete gear, and the brake member (1) is meshed with the first transmission assembly (2) for transmission; The first transmission assembly (2) comprises a cylindrical gear (21) and a first bevel gear (22), wherein the cylindrical gear (21) is meshed with the brake member (1) for transmission, and a first bevel gear (22) is provided on the top of the cylindrical gear (21), and the first bevel gear (22) is meshed with the second transmission assembly (3) for transmission; The second transmission assembly (3) comprises a second bevel gear (31) and a cylinder (32), one end of the second bevel gear (31) is meshed with the first bevel gear (22) for transmission, the other end of the second bevel gear (31) is connected to one end of the cylinder (32), and the other end of the cylinder (32) is rotatably sleeved with the third transmission assembly (4); The third transmission component (4) is provided with a clearance groove inside, and the clearance groove is provided with an internal thread. The third transmission component (4) is rotatably connected to the other end of the cylinder (32) through the clearance groove. The third transmission component (4) is away from the central axis of one end of the cylinder (32) to install the tightening component (5); The tightening assembly (5) comprises a first tightening wheel (51), a second tightening wheel (52) and a third tightening wheel (53), one end of the first tightening wheel (51) is mounted on the central axis of one end of the third transmission assembly (4), and the other end of the first tightening wheel (51) is provided with a second tightening wheel (52) and a third tightening wheel (53) on both sides, and the bottoms of the second tightening wheel (52) and the third tightening wheel (53) are both mounted in the brake housing.

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