Brake pad convenient to maintain

Abstract

The brake pad convenient to maintain comprises an arc-shaped framework and a friction lining which are connected with each other through a first connecting piece and a second connecting piece, the first connecting piece is located on the arc-shaped framework, and an arc-shaped block on the first connecting piece moves in a groove through a bolt. A plurality of expansion columns are arranged on the arc-shaped block; the second connecting piece is an expansion column containing groove located in the inner end face of the friction lining, the expansion column moves into the expansion column containing groove through the bolt to be expanded, and fixed connection of the arc-shaped framework and the friction lining is achieved. According to the device, expansion connection is achieved through the expansion bolt principle and the connection depth between the sliding block and the column body, meanwhile, due to the existence of the elastic plastic sleeve, the expansion unit recovers to the original state, separation of the arc-shaped framework and the friction lining is facilitated, use is easy, disassembly is convenient, frequent maintenance of the brake pad is facilitated, and the service life of the brake pad is prolonged. And the maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake pads, in particular to a brake pad that is easy to maintain. Background Art

[0002] Automobile brake pads, also known as automobile brake leathers, refer to the friction material fixed to the brake drum or brake disc that rotates with the wheel. The friction lining and friction pads therein are subjected to external pressure, generating friction to achieve the purpose of decelerating the vehicle. The current mainstream drum brake pads are difficult and cumbersome to disassemble during maintenance, and often require the use of several sets of special tools to maintain the brake pads. Moreover, since the brake pads are wearing parts, they need to be maintained frequently. The patent number is CN213145174U, and the name is a drum brake pad. The patent is named as a drum brake pad. The connection is fixed by respectively providing connecting devices on the arc-shaped frame and the friction lining. However, this connecting device is fixed by tightening a nut, which takes a lot of time to disassemble and install, and is inefficient. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a brake pad that is easy to maintain.

[0004] According to the technical solution provided in the embodiment of the present application, a brake pad that is easy to maintain includes an arc-shaped skeleton and a friction lining that are interconnected by a first connecting member and a second connecting member. The first connecting member is located on the arc-shaped skeleton, and the arc-shaped block on the first connecting member is located in a groove on the outer end face of the arc-shaped skeleton. The arc-shaped block is moved in the groove by bolts, and a plurality of expansion columns are provided on the arc-shaped block. The second connecting member is a groove for placing the expansion column located on the inner end face of the friction lining. The expansion column is moved into the expansion column placement groove by bolts to expand, thereby realizing a fixed connection between the arc-shaped skeleton and the friction lining.

[0005] Furthermore, the expansion column includes a column body and a sleeve. The outer end face of the column body is provided with a slide groove, which extends from one end of the column body to the other end. The depth of the slide groove gradually increases from one end of the column body to the other end. The sleeve is put on the column body through the slide groove. The suspended end of the sleeve is provided with an elastic plastic sleeve to realize multiple uses of disassembly and installation.

[0006] Furthermore, the expansion column placement groove is a cylindrical groove, and one end of the expansion column placement groove is provided with an expansion accommodating cavity to facilitate the expansion of the expansion column and achieve fixation.

[0007] Furthermore, the bolts pass through the arc frame and are fixedly connected to the arc block through bearings. The bolts can occasionally move the arc frame and also prevent the expansion column from falling out of the expansion column placement groove.

[0008] To sum up, the beneficial effects of the present application are as follows: the device of the present application utilizes the principle of expansion bolts, and at the same time utilizes the elastic plastic at the end of the sleeve, and at the same time utilizes the connection depth between the sliding block and the column to realize the expansion of the sliding block in the expansion accommodation space, thereby realizing the fixation of the arc skeleton and the friction lining; at the same time, because the sliding block can be pulled away from the elastic plastic under the pull of the bolt, the expansion unit is restored to its original state, which facilitates the separation of the arc skeleton and the friction lining. It is simple to use and easy to disassemble, which facilitates regular maintenance of the brake pads and greatly improves maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0010] Figure 1 This is a schematic structural diagram of the overall device of the utility model;

[0011] Figure 2 This is a schematic diagram of the connection structure between the first connecting member and the arc-shaped frame of the utility model;

[0012] Figure 3 This is a schematic structural diagram of the first connecting member of the utility model;

[0013] Figure 4 This is a schematic cross-sectional view of the expansion column of the utility model;

[0014] Figure 5 This is a schematic diagram of the front cross-sectional structure of the friction lining of the present invention.

[0015] Numbers in the figure: first connecting member -1; arc block -11; bolt -12; expansion column -13; column -131; sleeve -132; slide groove -133; elastic plastic sleeve -134; second connecting member -2; arc skeleton -3; groove -31; friction lining -4; expansion column placement groove -41; expansion accommodating cavity -411; slider -5. DETAILED DESCRIPTION

[0016] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0017] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] A brake pad that is easy to maintain, such as Figure 1It can be seen that the arc-shaped skeleton 3 is fixedly connected to the friction lining 4;

[0019] like Figure 2 and Figure 3 As shown, the bolt 12 passes through the arc frame 3 through a thread and is fixedly connected to the arc block 11 in the groove 31 on the outer end surface of the arc frame 3 through a bearing, and a plurality of expansion columns 13 are provided on the outer end surface of the arc block 11. In this way, when the bolt 12 is rotated, the arc block 11 and the expansion columns 13 can be extended out of the groove 31 or retracted into the groove 31;

[0020] like Figure 4 As shown, the expansion column 13 includes a column 131 and a sleeve 132. The upper and lower end surfaces of the column 131 are provided with a slide groove 133. The depth of the slide groove 133 gradually increases from left to right. An elastic plastic sleeve 134 is fixedly provided on the right end surface of the sleeve 132. The inner end surface of the elastic plastic sleeve 134 is slidably connected to the slide groove 133 through the slider 5, and the right end surface of the elastic plastic sleeve 134 is open.

[0021] like Figure 5 As shown, a plurality of expansion column placement grooves 41, i.e., the second connecting member 2, are provided on the end surface where the friction lining 4 is connected to the arc-shaped skeleton 3. An expansion accommodating cavity 411 is provided at one end of the expansion column placement groove 41, and continues to extend at the right end surface of the expansion accommodating cavity 411. The diameter of the extended cavity is smaller than the diameter of the sleeve 132, but can accommodate the insertion of the column 131. In this way, when the column 131 is inserted, the elastic plastic sleeve 134 at the end of the sleeve 132 will not be inserted together with the column 131, so that the slider 5 can expand in the expansion accommodating cavity 411.

[0022] When in use, first place the friction lining 4 as Figure 1 As shown, it is placed on the outer end surface of the arc frame 3, and then the bolt 12 is rotated manually or electrically so that the arc block 11 extends out of the groove 31. At this time, the expansion column 13 will be driven deep into the expansion column placement groove 41 until the sleeve 132 no longer moves. At this time, the bolt 12 is continued to be rotated so that the column 131 continues to move relative to the sleeve 132 toward the expansion column placement groove 41. Figure 4 As shown, when the left end of the column 131 moves to the elastic plastic sleeve 134 that is fixedly connected to the slider 5, the distance between the central axis of the column 131 and the elastic plastic sleeve 134 will increase, that is, the slider 5 is placed in the expansion accommodating cavity 411. At this time, the bolt 12 is stopped from rotating. At this time, the slider 5 realizes the expansion function and the fixation of the arc-shaped skeleton 3 and the friction lining 4 is achieved.

[0023] In order to prevent the sleeve 132 from moving relative to the column 131 when it penetrates into the expansion column placement groove 41, this device can provide a ball bearing on the outer end surface of the sleeve 132 to reduce the friction between the sleeve 132 and the expansion column placement groove 41, so that the part of the elastic plastic sleeve 134 that fixes the slider 5 can be smoothly placed in the expansion accommodating cavity 411.

[0024] The above description is merely an illustration of the preferred embodiments of the present application and the technical principles employed. The scope of the invention herein is not limited to the technical solutions formed by the specific combination of the aforementioned technical features, but also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents without departing from the inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A brake pad that is easy to maintain, characterized by: It comprises an arc-shaped skeleton (3) and a friction lining (4) connected to each other via a first connecting member (1) and a second connecting member (2), The first connecting member (1) is located on the arc-shaped frame (3); the arc-shaped block (11) on the first connecting member (1) is located in a groove (31) on the outer end surface of the arc-shaped frame (3); the arc-shaped block (11) is moved in the groove (31) by a bolt (12); and a plurality of expansion columns (13) are provided on the arc-shaped block (11); The second connecting member (2) is an expansion column placement groove (41) located on the inner end surface of the friction lining (4); the expansion column (13) is moved into the expansion column placement groove (41) by the bolt (12) to expand, thereby achieving a fixed connection between the arc-shaped skeleton (3) and the friction lining (4).

2. The brake pad easy to maintain according to claim 1, characterized in that: The expansion column (13) includes a column (131) and a sleeve (132). The outer end surface of the column (131) is provided with a slide groove (133). The slide groove (133) extends from one end of the column (131) to the other end. The depth of the slide groove (133) gradually increases from one end to the other end of the column (131). The sleeve (132) is placed on the column (131) through the slide groove (133).

3. The brake pad easy to maintain according to claim 2, characterized in that: An elastic plastic sleeve (134) is provided at the suspended end of the sleeve (132).

4. The brake pad easy to maintain according to claim 3, characterized in that: The expansion column placement groove (41) is a cylindrical groove, and one end of the expansion column placement groove (41) is provided with an expansion accommodating cavity (411).

5. The brake pad easy to maintain according to claim 1, characterized in that: The bolt (12) passes through the arc-shaped frame (3) and is fixedly connected to the arc-shaped block (11) via a bearing.

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