Compression spring installation tool suitable for brake caliper

Abstract

The utility model relates to a pressure spring mounting tool suitable for a brake caliper. The pressure spring mounting tool comprises two clamping pieces and a power transmission mechanism, the two clamping pieces are oppositely arranged and fixedly connected with the power transmission mechanism, and the power transmission mechanism is used for reducing the distance between the two clamping pieces so as to compress a pressure spring arranged between the two clamping pieces; the clamping piece is provided with a receding groove, and the receding groove is used for preventing the clamping piece from interfering with a guide pin of the brake caliper. The pressure spring mounting tool can be used for compressing the pressure spring of the brake caliper, so that the pressure spring can be easily mounted between two brake pads, the position of the pressure spring relative to the brake pads can be easily adjusted, and guide pins of the brake pads can easily penetrate into the pressure spring mounting tool; after the guide pin is inserted, the pressure spring mounting tool can be directly pulled out from the position between the two brake pads, and operation is easy.

Description

Technical Field

[0001] The utility model relates to a compression spring installation tool, in particular to a compression spring installation tool applicable to a brake caliper. Background Art

[0002] The working principle of the brake caliper is as follows: the left and right pistons respectively push the left and right brake pads to press the middle brake disc to achieve the purpose of braking. After the hydraulic supply to the left and right pistons stops, there will be residual back pressure in the braking pressure, resulting in the brake pads not separating from the brake disc. When the vehicle starts, it needs to rely on the rotational speed to shake off the brake pads in order to effectively start and accelerate.

[0003] In order to separate the brake pads from the brake disc after the hydraulic supply stops, a compression spring can be arranged between the left and right brake pads. The compression spring is sleeved on the guide pin of the brake pad. The elastic restoring force of the compression spring should not be too small, so as not to be unable to overcome the residual back pressure. The elastic restoring force of the compression spring should not be too large either, so as not to increase the burden on the piston.

[0004] Regarding the structure of the brake caliper and the installation position of the compression spring, reference can be made to the patent document CN215928182U. The friction plate in the patent document CN215928182U is equivalent to the brake pad mentioned in this article, and the spring is equivalent to the compression spring mentioned in this article. When installing the compression spring, it is necessary to overcome the elastic restoring force of the compression spring to insert the compression spring between the left and right brake pads. The elastic restoring force of the compression spring is not small. If installed by hand, it is quite laborious. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a compression spring installation tool applicable to a brake caliper, making the installation process of the compression spring of the brake caliper more labor-saving.

[0006] To solve the above technical problem, the utility model provides a compression spring installation tool applicable to a brake caliper. The compression spring installation tool includes two clamping pieces and a power transmission mechanism. The two clamping pieces are arranged oppositely and are respectively fixedly connected to the power transmission mechanism. The power transmission mechanism is used to reduce the distance between the two clamping pieces, thereby compressing the compression spring placed between the two clamping pieces; the clamping piece has a relief groove, and the relief groove is used to prevent the clamping piece from interfering with the guide pin of the brake caliper.

[0007] The compression spring installation tool provided by the utility model can be used to compress the compression spring of the brake caliper, making it easy to install the compression spring between the two brake pads, and also easy to adjust the position of the compression spring relative to the brake pads, making it easy for the guide pin of the brake pad to penetrate. Since the clamping piece has a relief groove for preventing the clamping piece from interfering with the guide pin, after the guide pin is penetrated, the compression spring installation tool can be directly pulled out between the two brake pads, and the operation is simple.

[0008] In an embodiment, a limiting protrusion is provided on the side of the clamping piece facing the compression spring, and the limiting protrusion is used to prevent the compression spring from moving relative to the clamping piece.

[0009] In one embodiment, the limiting protrusion is a "U"-shaped structure that semi-surrounds the relief groove.

[0010] The limiting protrusion makes it difficult for the compression spring to move relative to the clip, which facilitates compressing the compression spring and adjusting the position of the compression spring relative to the brake pad by means of a compression spring installation tool. In other embodiments, the limiting protrusion may not be provided or limiting protrusions of other shapes may be provided.

[0011] In one embodiment, the power transmission mechanism includes a fixed operating rod and a sliding operating rod. The two clips are respectively fixed on the fixed operating rod and the sliding operating rod. The sliding operating rod can move relative to the fixed operating rod, so that the distance between the two clips changes.

[0012] In one embodiment, the power transmission mechanism further includes a rotating operating rod and a connecting member. Two ends of the connecting member are respectively rotatably connected to the fixed operating rod and the rotating operating rod. The rotating operating rod is rotatably connected to the sliding operating rod, so that the rotation of the rotating operating rod can cause the sliding operating rod to move relative to the fixed operating rod.

[0013] This power transmission mechanism utilizes the lever principle to achieve labor saving, has a simple structure and low cost. In other embodiments, a non-manual power transmission mechanism may also be adopted.

[0014] In one embodiment, the fixed operating rod is a "J"-shaped structure, and its two ends are respectively its first end and second end; the sliding operating rod is an "L"-shaped structure, and its two ends are respectively its first end and second end; the two clips are respectively fixed to the first end of the fixed operating rod and the first end of the sliding operating rod. The second end of the fixed operating rod passes through the second end of the sliding operating rod, and the sliding operating rod can slide along the fixed operating rod to change the distance between the two clips; one end of the rotating operating rod is rotatably connected to the second end of the sliding operating rod.

[0015] In one embodiment, a screwing seat is provided on the side of the clip facing away from the compression spring. One clip is screwed and fixed to the first end of the fixed operating rod through its screwing seat, and the other clip is screwed and fixed to the first end of the sliding operating rod through its screwing seat.

[0016] The clips are connected to the corresponding operating rods in a screwed manner, so that the range of the distance between the two clips can be changed. Thus, this compression spring installation tool can be used to install compression springs of different lengths into spaces of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 and 2 are perspective views of a compression spring installation tool according to an embodiment of the present invention from different perspectives;

[0018] Figure 3 is a perspective view of a compression spring and Figure 1 the compression spring installation tool shown before compressing the compression spring;

[0019] Figure 4 is Figure 3 The three-dimensional view of the compression spring and the compression spring installation tool after compressing the compression spring as shown;

[0020] Figure 5-1 and 5-2 are respectively Figure 3 and 4 The front views of the compression spring and the compression spring installation tool as shown. Specific embodiments

[0021] The present invention will be further described below in conjunction with the accompanying drawings and one embodiment of the present invention.

[0022] Referring to Figures 1 to 4 , a compression spring installation tool includes two relatively arranged clamping pieces 1, and a compression spring 100 is clamped between the two clamping pieces 1. The compression spring 100 is inserted between the two brake pads of the brake caliper together with the clamping pieces 1. The clamping pieces 1 are provided with relief grooves 11 corresponding to the guide pins of the brake pads. After the compression spring 100 is inserted between the two brake pads together with the clamping pieces 1, the guide pins are inserted properly. At this time, the clamping pieces 1 can be pulled out from between the two brake pads. Since the clamping pieces 1 are provided with relief grooves 11, the guide pins will not hinder the pulling out of the clamping pieces 1, and the compression spring 100 is blocked by the guide pins and will not be pulled out together with the clamping pieces 1.

[0023] The surface of the clamping piece 1 facing the compression spring 100 is called the front surface of the clamping piece 1. In order to limit the compression spring 100 so that the compression spring 100 will not move relative to the two clamping pieces 1 arbitrarily, the front surface of the clamping piece 1 is provided with a limiting protrusion 12. The limiting protrusion 12 is a "U" - shaped structure and forms a semi - enclosure for the relief groove 11. The compression spring 100 is installed between the left and right brake pads from top to bottom, and the inner side of the limiting protrusion 12 limits the compression spring 100 in the up, front, and rear directions.

[0024] In order to change the distance between the two clamping pieces 1, and thus compress the compression spring 100, an operating rod is connected to the back surface of the clamping piece 1. One clamping piece 1 is connected to a fixed operating rod 2 with a "J" - shaped structure, and the other clamping piece 1 is connected to a sliding operating rod 3 with an "L" - shaped structure. The sliding operating rod 3 can slide relative to the fixed operating rod 2, so that the distance between the two clamping pieces 1 can be changed.

[0025] The end of the sliding operating rod 3 connected to the clamping piece 1 is called the first end of the sliding operating rod 3, and the end of the sliding operating rod 3 connected to the fixed operating rod 2 is called the second end of the sliding operating rod 3. The second end of the sliding operating rod 2 is sleeved on the fixed operating rod 2. In order to achieve a labor - saving operation of the sliding operating rod 3, a rotating operating rod 4 is rotatably connected to the second end of the sliding operating rod 3. The rotating operating rod 4 and the fixed operating rod 2 are connected by a connecting piece 5. The connecting piece 5 is rotatably connected to both the rotating operating rod 4 and the fixed operating rod 2. Referring to Figure 5-1 and5-2 , rotate the rotation operating lever 4 in the direction indicated by the Figure 5-1 arrow, so that the end of the rotation operating lever 4 connected to the sliding operating lever 3 is pulled by the sliding operating lever 3 and moves in the Figure 5-2 direction indicated by the arrow, which also drives the sliding operating lever 3 to move in the Figure 5-2 direction indicated by the arrow under the guidance of the fixed operating lever 2, so that the compression spring 100 between the two clamping pieces 1 is compressed.

[0026] In addition to the compression spring of the brake caliper, the compression spring installation tool provided by the present utility model can also be used to install the compression springs of other devices. The clamping pieces 1 are threadedly connected to the corresponding operating levers through the screw connection seats 13 on their backs, so that the range of the distance between the two clamping pieces 1 can be changed, and thus the compression springs of different lengths can be installed in spaces of different widths.

Claims

1. A compression spring installation tool suitable for a brake caliper, the brake caliper comprising two brake pads, a plurality of guide pins and a plurality of compression springs, the compression springs being arranged between the two brake pads, the guide pins passing through the two brake pads and the compression springs, characterized in that: The compression spring installation tool comprises two clips (1) and a power transmission mechanism, wherein the two clips (1) are arranged opposite to each other and are respectively fixedly connected to the power transmission mechanism, and the power transmission mechanism is used to reduce the distance between the two clips (1), thereby compressing the compression spring disposed between the two clips (1); the clip (1) has a clearance groove (11), and the clearance groove (11) is used to avoid interference between the clip (1) and the guide pin of the brake caliper.

2. The compression spring installation tool according to claim 1, characterized in that: A limiting protrusion (12) is provided on the side of the clip (1) facing the compression spring, and the limiting protrusion (12) is used to prevent the compression spring from moving relative to the clip (1).

3. The compression spring installation tool according to claim 2, characterized in that: The limiting protrusion (12) is a "U"-shaped structure, and semi-encloses the clearance groove (11).

4. The compression spring installation tool according to claim 1, characterized in that: The power transmission mechanism comprises a fixed operating rod (2) and a sliding operating rod (3), two clips (1) are respectively fixed on the fixed operating rod (2) and the sliding operating rod (3), and the sliding operating rod (3) can move relative to the fixed operating rod (2), thereby changing the distance between the two clips (1).

5. The compression spring installation tool according to claim 4, characterized in that: The power transmission mechanism further comprises a rotating operating rod (4) and a connecting member (5), wherein two ends of the connecting member (5) are respectively rotatably connected to the fixed operating rod (2) and the rotating operating rod (4), and the rotating operating rod (4) is rotatably connected to the sliding operating rod (3), so that the rotation of the rotating operating rod (4) can cause the sliding operating rod (3) to move relative to the fixed operating rod (2).

6. The compression spring installation tool according to claim 5, characterized in that: The fixed operating rod (2) is a "J"-shaped structure, and its two ends are respectively a first end and a second end; the sliding operating rod (3) is an "L"-shaped structure, and its two ends are respectively a first end and a second end; two clips (1) are respectively fixed to the first end of the fixed operating rod (2) and the first end of the sliding operating rod (3); the second end of the fixed operating rod (2) passes through the second end of the sliding operating rod (3); the sliding operating rod (3) can slide along the fixed operating rod (2) to change the distance between the two clips (1); one end of the rotating operating rod (4) is rotatably connected to the second end of the sliding operating rod (3).

7. The compression spring installation tool according to claim 6, characterized in that: A screw connection seat (13) is provided on one side of the clip (1) facing away from the compression spring, and one clip (1) is screwed and fixed to the first end of the fixed operating rod (2) via its screw connection seat (13), and the other clip (1) is screwed and fixed to the first end of the sliding operating rod (3) via its screw connection seat (13).

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