Tightness adjusting device for electric car brake

Abstract

The utility model provides a tightness adjusting device for electric car brake, which relates to the technical field of electric car brake, and comprises a rocker arm component, the rocker arm component comprises a mounting plate, two symmetrical fixing blocks are fixed on the mounting plate, fastening bolts are mounted on the fixing blocks, the fastening bolts are used for fixing the mounting plate on a brake cam shaft, and the rocker arm component is fixed on the mounting plate. And the fastening bolt is tightened. According to the tightness adjusting device for the electric car brake, a connecting block and a limiting rod can be pulled through a connecting column, the limiting rod extrudes an elastic piece through a fixing ring till the limiting rod leaves a limiting hole, at the moment, a second disc is rotated, the second disc drives a second positioning plate and a brake steel wire to move leftwards, and then the brake steel wire is pulled; and after adjustment is completed, the connecting column is loosened, the limiting rod moves into the limiting hole again under the elastic force of the elastic piece, limiting of the second disc is achieved, the device can achieve tightness adjustment of the brake without disassembling and assembling the bolt, and adjustment is rapid and convenient.

Description

Technical Field

[0001] This utility model relates to a tension adjustment device, specifically a tension adjustment device for tram brakes, and belongs to the field of tram brake technology. Background Technology

[0002] The braking system of an electric two-wheeler is a crucial component for ensuring driving safety, primarily consisting of the front and rear wheel brakes. Common brake types include mechanical drum brakes and hydraulic disc brakes. Drum brakes are simple in structure and low in cost, suitable for low- and medium-speed vehicles; disc brakes offer sensitive braking and good heat dissipation, suitable for high-speed or high-performance electric vehicles. The braking principle involves controlling the brake lever to cause the brake pads to rub against the brake drum or disc, generating resistance and slowing the vehicle down. A good braking system can effectively shorten braking distance and improve riding safety.

[0003] For electric two-wheelers with drum brakes, the rear wheel brake can be tightened by adjusting the adjusting nut on the brake cable. Specifically, tighten the adjusting nut clockwise to taut the brake cable, thus shortening the brake travel and enhancing braking performance. However, be careful not to overtighten, as this can cause brake lag. After adjustment, manually rotate the rear wheel to check for any friction noise, ensuring safety and effectiveness.

[0004] Existing methods for adjusting the rear wheel brake of electric two-wheeled vehicles mostly rely on manually rotating the adjusting nut, and the tension of the cable is difficult to control precisely. For inexperienced users, it is easy to make the adjustment incorrect or too tight, requiring multiple adjustments of the nut. Therefore, this paper proposes a tension adjustment device for electric vehicle brakes. Utility Model Content

[0005] This utility model proposes a brake tension adjustment device for electric vehicles, which can adjust the brake tension without disassembling the bolts, making the adjustment quick and convenient.

[0006] This utility model is achieved through the following technical solution: a tension adjustment device for a tram brake, including a rocker arm component, the rocker arm component including a mounting plate, two symmetrical fixing blocks fixed on the mounting plate, fastening bolts installed on the fixing blocks, the fastening bolts being used to fix the mounting plate to the brake camshaft, when the fastening bolts are tightened, the mounting plate will undergo slight deformation, thereby being tightly fixed to the brake camshaft, the mounting plate having a slot for assisting in clamping the brake camshaft.

[0007] It also includes a tensioning component, which is disposed at the bottom of the rocker arm component. The tensioning component includes a first disc and a second disc, the second disc being rotatably connected to the first disc and capable of rotating on the first disc. A first positioning plate is fixed on the first disc and is connected to the mounting plate. A second positioning plate is fixed on the second disc and is fixed to the second disc.

[0008] A connecting component is provided between the first disk and the second disk. The connecting component includes limiting holes, which are evenly distributed on the first disk. An installation cavity is provided inside the second disk. A limiting rod is slidably connected inside the installation cavity. A fixing ring is fixed on the limiting rod. The limiting rod can slide within the limiting holes and the fixing ring. An elastic element, which is a spring, is fixed on the fixing ring. The elastic element is sleeved on the limiting rod. A connecting block is fixed on the limiting rod.

[0009] A connecting post is fixed on the connecting block. An adjustment hole is provided on the connecting post. An external thread is provided on the end of the connecting post away from the connecting block. A protective sleeve is threaded onto the connecting post. An adjustment groove is provided on the protective sleeve. The protective sleeve is provided to protect the connecting post and the adjustment hole to avoid misoperation.

[0010] It also includes a brake cable connecting component, which is located at the bottom of the tensioning component. The brake cable connecting component includes two symmetrical mounting blocks, on which a connecting rod and a nut are mounted. A brake wire is connected to the connecting rod, and the brake wire is used to transmit braking force.

[0011] This utility model provides a tension adjustment device for tram brakes, which has the following beneficial effects:

[0012] 1. The brake tension adjustment device of this tram can pull the connecting block and the limiting rod through the connecting column, so that the limiting rod is squeezed by the fixed ring against the elastic element until the limiting rod leaves the limiting hole. At this time, the second disc is rotated, so that the second disc drives the second positioning plate and the brake cable to move to the left, thereby pulling the brake cable. After the adjustment is completed, the connecting column is released, so that the limiting rod moves back into the limiting hole under the elastic force of the elastic element, realizing the limiting of the second disc. This device can realize the brake tension adjustment without disassembling the bolts, and the adjustment is quick and convenient. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the first and second disks of this utility model;

[0016] Figure 4 This is a schematic diagram of the connecting block and protective sleeve structure of this utility model.

[0017] Explanation of reference numerals in the attached figures

[0018] 1. Rocker arm assembly; 101. Mounting plate; 102. Fixing block; 103. Fastening bolt; 104. Slot;

[0019] 2. Tightening / Loosening components; 201. First disc; 202. Second disc; 203. Limiting hole; 204. Mounting cavity; 205. Retaining ring; 206. Elastic element; 207. Connecting block; 208. Connecting post; 209. Adjusting hole; 210. Protective sleeve; 211. Adjusting groove; 212. First positioning plate; 213. Second positioning plate; 214. Limiting rod;

[0020] 3. Brake cable connection components; 301. Mounting block; 302. Connecting rod; 303. Brake wire; 304. Nut. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0022] Please see Figures 1-4 The present invention proposes the following implementation scheme: a trolley brake tension adjustment device, including a rocker arm component 1, the rocker arm component 1 including a mounting plate 101, two symmetrical fixing blocks 102 fixed on the mounting plate 101, and fastening bolts 103 installed on the fixing blocks 102.

[0023] The fastening bolt 103 is used to fix the mounting plate 101 to the brake camshaft. When the fastening bolt 103 is tightened, the mounting plate 101 will undergo slight deformation, thereby being tightly fixed to the brake camshaft. The mounting plate 101 is provided with a slot 104, which is used to assist in clamping the brake camshaft.

[0024] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3It also includes a tensioning component 2, which is disposed at the bottom of the rocker arm component 1. The tensioning component 2 includes a first disc 201 and a second disc 202. The second disc 202 is rotatably connected to the first disc 201 and can rotate on the first disc 201. A first positioning plate 212 is fixed on the first disc 201 and is connected to the mounting plate 101. A second positioning plate 213 is fixed on the second disc 202 and is fixed to the second disc 202.

[0025] Please refer to this carefully. Figure 1 , Figure 2 and Figure 3 A connecting component is provided between the first disk 201 and the second disk 202. The connecting component includes a limiting hole 203. The limiting holes 203 are evenly distributed on the first disk 201, and an installation cavity 204 is provided in the second disk 202.

[0026] A limiting rod 214 is slidably connected inside the mounting cavity 204. A fixing ring 205 is fixed on the limiting rod 214. The limiting rod 214 can slide within the limiting hole 203 and the fixing ring 205. An elastic element 206, which is a spring, is fixed on the fixing ring 205. The elastic element 206 is sleeved on the limiting rod 214. A connecting block 207 is fixed on the limiting rod 214.

[0027] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 A connecting post 208 is fixed on the connecting block 207. An adjustment hole 209 is provided on the connecting post 208. An external thread is provided at the end of the connecting post 208 away from the connecting block 207. A protective sleeve 210 is threaded onto the connecting post 208. An adjustment groove 211 is provided on the protective sleeve 210. The protective sleeve 210 is provided to protect the connecting post 208 and the adjustment hole 209 to avoid misoperation.

[0028] Please refer to this carefully. Figure 1 and Figure 2 It also includes a brake cable connecting component 3, which is located at the bottom of the tensioning component 2. The brake cable connecting component 3 includes two symmetrical mounting blocks 301. A connecting rod 302 and a nut 304 are mounted on the mounting blocks 301. A brake wire 303 is connected to the connecting rod 302. The brake wire 303 is used to transmit braking force.

[0029] Working principle: When adjusting the brake tightness, first remove the protective cover 210, then insert the screwdriver into the adjustment hole 209, and pull the connecting column 208 with both hands. The connecting column 208 will pull the connecting block 207 and the limiting rod 214, so that the limiting rod 214 squeezes the elastic element 206 through the fixing ring 205 until the limiting rod 214 leaves the limiting hole 203.

[0030] At this time, rotating the second disc 202 causes the second disc 202 to move the second positioning plate 213 and the brake wire 303 to the left, thereby pulling the brake wire 303. After the adjustment is completed, the connecting column 208 is released, so that the limiting rod 214 moves back into the limiting hole 203 under the elastic force of the elastic element 206, thereby limiting the second disc 202. This device can adjust the tightness of the brake without disassembling the bolts, and the adjustment is quick and convenient.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tension adjustment device for a tram brake, comprising a rocker arm component (1), characterized in that: It also includes a tensioning component (2), which is disposed at the bottom of the rocker arm component (1); The tensioning component (2) includes a first disc (201) and a second disc (202), the second disc (202) being rotatably connected to the first disc (201), and a connecting component being provided between the first disc (201) and the second disc (202); It also includes a brake cable connecting component (3), which is located at the bottom of the tensioning component (2).

2. The trolley brake tension adjustment device according to claim 1, characterized in that: The rocker arm component (1) includes a mounting plate (101), on which two symmetrical fixing blocks (102) are fixed, and fastening bolts (103) are installed on the fixing blocks (102). The mounting plate (101) has a slot (104).

3. The trolley brake tension adjustment device according to claim 1, characterized in that: The brake cable connecting component (3) includes two symmetrical mounting blocks (301), on which a connecting rod (302) and a nut (304) are mounted, and a brake wire (303) is connected to the connecting rod (302).

4. The trolley brake tension adjustment device according to claim 1, characterized in that: The connecting component includes limiting holes (203), which are evenly distributed on the first disc (201). The second disc (202) has an installation cavity (204) inside, and a limiting rod (214) is slidably connected inside the installation cavity (204). A fixing ring (205) is fixed on the limiting rod (214), and an elastic element (206) is fixed on the fixing ring (205). A connecting block (207) is fixed on the limiting rod (214), and a connecting post (208) is fixed on the connecting block (207). An adjustment hole (209) is provided on the connecting post (208).

5. A slack adjuster for an electric vehicle brake as defined in claim 4, wherein: The elastic element (206) is a spring, and the elastic element (206) is sleeved on the limiting rod (214).

6. The trolley brake tension adjustment device according to claim 4, characterized in that: The end of the connecting post (208) away from the connecting block (207) is provided with an external thread, and a protective sleeve (210) is threaded onto the connecting post (208), and an adjustment groove (211) is provided on the protective sleeve (210).

7. The trolley brake tension adjustment device according to claim 1, characterized in that: A first positioning plate (212) is fixed on the first disc (201), and the first positioning plate (212) is connected to the mounting plate (101). A second positioning plate (213) is fixed on the second disc (202), and the second positioning plate (213) is fixed to the second disc (202).

Images