Pressing plate fixing structure for disc brake

Abstract

The utility model relates to a pressing plate fixing structure for a disc brake, the disc brake comprises a caliper body, a pressing plate is arranged on the caliper body, one side of the caliper body is provided with a slot for the insertion of the pressing plate, the other side of the caliper body is provided with a fixing seat for the fixation of the pressing plate, one side of the pressing plate is inserted into the slot, and the other side of the pressing plate is fixed with the fixing seat. The fixing base is provided with at least one vertically-arranged fixing column, and the pressing plate is further provided with a fixing through hole allowing the fixing column to penetrate through. The fixing column penetrates through the fixing through hole and then is fixed through a C-shaped clamping spring, and an annular fixing groove allowing the C-shaped clamping spring to be inserted and fixed is formed in the circumferential outer wall of the fixing column. Compared with the prior art, the fixing device has the advantages that the pressing plate and the fixing base are fixed through matching of the vertically-arranged fixing column and the C-shaped clamping spring, the C-shaped clamping spring is directly inserted into the fixing column after the fixing column penetrates through the fixing through hole in the pressing plate, only the C-shaped clamping spring needs to be taken down in the follow-up disassembling process, and assembling and disassembling are quite convenient.

Description

Technical Field

[0001] The utility model relates to the field of disc brakes, in particular to a disc brake pressure plate fixing structure. Background Art

[0002] Compared with drum brakes, disc brakes have less wear and heat during braking, and they dissipate heat quickly, are safe and reliable, and have little loss to wheel hub bearings. Due to the superior performance of disc brakes in braking, more and more cars are using disc brakes.

[0003] However, the production process of disc brakes requires the assembly of multiple parts, with numerous processes and complex structures. When installing the brake pad pressure plate, there is a retaining spring under the brake pad pressure plate, so it is necessary to press the brake pad pressure plate hard, align the two holes, and then tighten the bolts. It is very difficult to align the two holes, so the installation of the brake pad pressure plate is extremely time-consuming and labor-intensive, with low production efficiency and high labor intensity for workers.

[0004] For example, the patent CN210344104U mentions a disc brake caliper body based on a wedge-shaped self-locking pressure plate fixing method, including a disc brake caliper body, a pressure plate, a wedge-shaped block, and a screw. A pressure plate slot is provided at one end of the disc brake caliper body, and a rectangular boss with a positioning groove is cast on the other end of the disc brake caliper body opposite to the pressure plate slot, and a rectangular hole is provided on the pressure plate; one end of the pressure plate is inserted into the pressure plate slot, the rectangular hole of the pressure plate is sleeved on the rectangular boss, the outer side of the rectangular hole of the pressure plate is clamped on the positioning groove of the rectangular boss, the wedge-shaped block is placed in the gap between the rectangular hole of the pressure plate and the rectangular boss from below, the screw is threadedly connected to the wedge-shaped block, and the lower end face of the screw is pressed against the disc brake caliper body, and the inclined surface of the wedge-shaped block is used to eliminate the gap between the rectangular boss and the pressure plate.

[0005] In the above patent, when the pressure plate is fixed, one side of the pressure plate is inserted into the pressure plate slot of the pliers body, and the other side of the pressure plate is sleeved on the rectangular boss, and the pressure plate is fixed by the threaded cooperation of the screw and the wedge-shaped block. The installation process of the entire pressure plate is very troublesome. In addition, during disassembly, due to the use of threaded fixing method, after long-term use, the threaded connection is prone to rust, which brings inconvenience to subsequent disassembly. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a disc brake pressure plate fixing structure which is convenient for installing and disassembling the pressure plate.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a disc brake pressure plate fixing structure, the disc brake comprises a caliper body, a pressure plate is installed on the caliper body, one side of the caliper body has a slot for inserting the pressure plate, and the other side of the caliper body is provided with a fixing seat for fixing the pressure plate, one side of the pressure plate is inserted into the slot, and the other side is fixed to the fixing seat, and its innovation lies in:

[0008] The fixing seat is provided with at least one vertically arranged fixing column, and the pressing plate is also provided with a fixing through hole for the fixing column to pass through;

[0009] The fixing column is fixed by a C-shaped clamping ring after passing through the fixing through hole, and an annular fixing groove for inserting and fixing the C-shaped clamping ring is opened on the circumferential outer wall of the fixing column.

[0010] Furthermore, a protruding plug-in protrusion is also provided on the inner wall of the C-shaped retaining ring.

[0011] Furthermore, both side ends of the C-shaped retaining spring are also provided with chamfers.

[0012] Furthermore, there are two fixing columns, which are distributed in parallel on the fixing seat, and fixing through holes corresponding to the two fixing columns are opened on the side of the pressure plate.

[0013] The advantages of the utility model are: the fixation between the pressure plate and the fixed seat in the utility model is achieved by the cooperation of a vertically arranged fixing column and a C-shaped retaining spring. After the fixing column passes through the fixing through hole on the pressure plate, the C-shaped retaining spring can be directly inserted. During subsequent disassembly, only the C-shaped retaining spring needs to be removed, and installation and disassembly are very convenient. Based on the above structure, during processing, there is no need to open a fixing hole on the fixed seat, and only the hole position needs to be processed on the pressure plate, which also facilitates processing.

[0014] The arrangement of the plug-in protrusions on the inner wall of the C-shaped retaining spring allows the C-shaped retaining spring to contact the fixing column at multiple points, thereby preventing the C-shaped retaining spring from easily rotating relative to the fixing column.

[0015] The chamfers provided on both sides of the C-shaped retaining spring can guide the C-shaped retaining spring when the C-shaped retaining spring is plugged into and matched with the fixing column, so that the C-shaped retaining spring can be opened more smoothly for subsequent fixation.

[0016] By arranging two fixing columns to fix the pressing plate, the fixing between the pressing plate and the fixing seat is made more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the first structure of the disc brake pressure plate fixing structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the first structure of the medium pressure plate of the utility model.

[0020] Figure 3 This is a schematic diagram of the first structure of the pliers body in the utility model.

[0021] Figure 4 It is a schematic diagram of the C-type retaining spring in the utility model.

[0022] Figure 5 This is a second structural schematic diagram of the disc brake pressure plate fixing structure of the utility model.

[0023] Figure 6 This is a schematic diagram of the second structure of the medium pressure plate of the utility model.

[0024] Figure 7 This is a schematic diagram of the second structure of the pliers body in the utility model. DETAILED DESCRIPTION

[0025] The following embodiments may enable those skilled in the art to more fully understand the present invention, but the present invention is not limited to the scope of the embodiments.

[0026] like Figure 1-Figure 4 A disc brake pressure plate fixing structure is shown, the disc brake comprises a caliper body 1, a pressure plate 2 is mounted on the caliper body 1, one side of the caliper body 1 has a slot for inserting the pressure plate 2, the other side of the caliper body 1 is provided with a fixing seat 4 for fixing the pressure plate 2, one side of the pressure plate 2 is inserted into the slot, and the other side of the pressure plate 2 is fixed to the fixing seat 4, thereby achieving fixation between the pressure plate 2 and the fixing seat 4.

[0027] The fixing seat 4 is in the shape of a rectangular parallelepiped, and a vertically arranged fixing column 3 is arranged on the fixing seat 4. The fixing column 3 is located in the middle position of the fixing seat 4, the fixing column 3 is cylindrical, and the upper end of the fixing column 3 extends out of the fixing seat 4. A fixing through hole 5 for accommodating the fixing column 3 to pass through is also opened on the pressure plate 2, and the fixing through hole 5 is a circular through hole.

[0028] The fixing column 3 passes through the fixing through hole 5 and is fixed by a C-shaped clamping ring 6. An annular fixing groove 31 for inserting and fixing the C-shaped clamping ring 6 is formed on the circumferential outer wall of the fixing column 3.

[0029] A protruding plug-in protrusion 61 is also provided on the inner wall of the C-shaped clip 6, and the side of the plug-in protrusion 61 away from the inner wall of the C-shaped clip 6 is an arc-shaped surface that fits the outer wall of the annular fixing groove 31 of the fixing column 3. The plug-in protrusion 61 on the inner wall of the C-shaped clip 6 is provided so that when the C-shaped clip 6 contacts the fixing column 3, this multi-point contact method is adopted, so that the C-shaped clip 6 can contact the fixing column 3 more stably, avoid the C-shaped clip 6 and the fixing column 3 from easily rotating relative to each other, and ensure the stability of the fixation between the pressure plate 2 and the fixing seat 4.

[0030] Chamfers 62 are also provided at both ends of the C-shaped clip 6. The chamfers 62 provided on both sides of the C-shaped clip 6 can guide the C-shaped clip 6 when the C-shaped clip 62 is plugged into the fixing column 3, so that the C-shaped clip 6 can be opened more smoothly for subsequent fixing.

[0031] like Figure 5-Figure 6 Another structure of the disc brake pressure plate fixing structure shown in the figure adopts two fixing columns 3 to cooperate with the pressure plate 2 for fixing, the two fixing columns 3 are arranged side by side on the fixing seat 4, and a gap is left between the two fixing columns 3, and fixing through holes 5 corresponding to the two fixing columns 3 are opened on the side of the pressure plate 2. By providing two fixing columns 3 to fix the pressure plate 2, the fixing between the pressure plate 2 and the fixing seat 4 is more stable.

[0032] When the pressure plate 2 is fixed, first, one side of the pressure plate 2 is inserted into the slot on one side of the caliper body 1, and then the other side of the pressure plate 2 is inserted into the fixing column 3, so that the fixing column 3 passes through the fixing through hole 5 of the pressure plate 2, and the side of the pressure plate 2 is pressed down so that the upper end surface of the pressure plate 2 is lower than the height of the annular fixing groove 31, and finally the C-shaped retaining ring 6 is inserted into the annular fixing groove 31 to complete the fixing of the pressure plate 2. This fixing method is achieved by the cooperation of the vertically arranged fixing column 3 and the C-shaped retaining ring 6. When the fixing column 3 passes through the fixing through hole 5 on the pressure plate 2, After the hole 5 is formed, the C-shaped retaining ring 6 can be directly inserted. During the subsequent disassembly, the pressure plate 2 can be removed by only removing the C-shaped retaining ring 6. The installation and disassembly are very convenient. Moreover, when processing the above structure, there is no need to open a fixing hole on the fixing seat 4. It is only necessary to process the hole position on the pressure plate 2, which is also convenient for processing. In the traditional structure, the pressure plate 2 itself needs to be processed with a through hole for the fixing seat 4 to pass through, that is, the hole position itself needs to be processed. It is only necessary to change the traditional through hole for the fixing seat 4 to pass through to a through hole for the fixing column 3 to pass through.

[0033] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A disc brake pressure plate fixing structure, the disc brake comprises a caliper body, a pressure plate is mounted on the caliper body, one side of the caliper body has a slot for inserting the pressure plate, the other side of the caliper body is provided with a fixing seat for fixing the pressure plate, one side of the pressure plate is inserted into the slot, and the other side is fixed to the fixing seat, characterized in that: The fixing seat is provided with at least one vertically arranged fixing column, and the pressing plate is also provided with a fixing through hole for the fixing column to pass through; The fixing column is fixed by a C-shaped clamping ring after passing through the fixing through hole, and an annular fixing groove for inserting and fixing the C-shaped clamping ring is opened on the circumferential outer wall of the fixing column.

2. The disc brake pressure plate fixing structure according to claim 1, characterized in that: The inner wall of the C-shaped clip is also provided with a protruding plug-in protrusion.

3. The disc brake pressure plate fixing structure according to claim 1, characterized in that: Both side ends of the C-shaped clamping spring are also provided with chamfers.

4. The disc brake pressure plate fixing structure according to claim 1, characterized in that: There are two fixing columns in total, which are distributed in parallel on the fixing seat, and fixing through holes corresponding to the two fixing columns are opened on the side of the pressure plate.

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