Cleaning tool for brake caliper sealing ring groove

Abstract

The cleaning tool for the brake caliper sealing ring groove comprises a connecting shaft, a base, a brush rod and an elastic reset piece, the brush rod is arranged in the base in a sliding fit mode, and a brush head is arranged at one end of the brush rod and can stretch out of the base. The elastic reset piece is arranged in the base and used for exerting elastic force on the brush rod so that the brush head can partially or completely retreat into the base. When the driving motor drives the connecting shaft and the base to rotate, the brush head on the brush rod can stretch out of the base under the action of centrifugal force, and the brush head can clean a sealing ring groove in a piston cavity of the brake caliper in the process of rapidly rotating around the connecting shaft. Thus, the problem that in the later use process of the brake caliper, due to the fact that foreign matter exists in the sealing ring groove, hydraulic oil in the piston cavity leaks is solved, and the use stability of the brake caliper is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to a cleaning tool for a brake caliper sealing ring groove. Background Art

[0002] The brake caliper is an indispensable brake part of the brake system. When the driver steps on the brake, the brake master cylinder generates thrust to squeeze the brake fluid into the brake caliper. The piston inside the brake caliper begins to move under the hydraulic pressure and pushes the friction plate. The friction plate rubs against the brake disc, thereby reducing the vehicle speed and stopping it.

[0003] The inner wall of the piston cavity of the existing brake caliper is designed with a sealing ring groove. If there is foreign matter in the sealing ring groove, after the sealing ring is installed, the hydraulic oil in the piston cavity may leak, affecting safety. Therefore, before assembly, the sealing ring groove of the brake caliper needs to be cleaned. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a cleaning tool for a brake caliper sealing ring groove, so as to facilitate cleaning of the sealing ring groove of the brake caliper piston cavity and improve the stability of the brake caliper in later use.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a cleaning tool for a brake caliper sealing ring groove, comprising a connecting shaft; a base, arranged at one end of the connecting shaft; a brush rod, slidably fitted in the base, a brush head is provided at one end of the brush rod, and the brush head can extend out of the base; and an elastic return member, arranged in the base, the elastic return member is used to apply elastic force to the brush rod so that the brush head is partially or completely retracted into the base.

[0006] Preferably, the base is provided with a first hole, a second hole and a third hole which are connected in sequence, the inner diameter of the second hole is smaller than the inner diameters of the first hole and the third hole, and the first hole passes through the outer wall of the base; the brush rod is penetrated by the first hole, the second hole and the third hole, and slides with the second hole, the brush head is arranged in the first hole, the elastic reset part is arranged in the third hole, and the brush rod is provided with a first limit part, and the first limit part is used to prevent the brush head from retreating into the second hole.

[0007] Preferably, the first limiting member is a limiting flange, the limiting flange is arranged on the outer wall of the brush rod located in the first hole, the outer diameter of the limiting flange is larger than the inner diameter of the second hole, and the brush head is arranged on the side of the limiting flange away from the second hole.

[0008] Preferably, one end of the brush head away from the limiting flange extends out of the first hole.

[0009] Preferably, a second limit member is provided on the brush rod, and the second limit member and the elastic return member are both located in the third hole; the elastic return member is sleeved on the brush rod, and the two ends of the elastic return member respectively abut the second limit member and the connection between the second hole and the third hole.

[0010] Preferably, the outer side wall of the brush rod is recessed to form an annular groove, and the second limiting member is a retaining spring, which is retained in the retaining groove.

[0011] Preferably, the base is a cylindrical structure, and the axis of the base coincides with the axis of the connecting shaft.

[0012] Preferably, the base comprises a first base body and a second base body which are connected, and the first base body is connected to the connecting shaft.

[0013] Preferably, the first seat body and the second seat body are connected by bolts.

[0014] Preferably, a connecting portion is provided at one end of the connecting shaft, and the connecting portion is in a conical structure, a small diameter end of the connecting portion is connected to the connecting shaft, and a large diameter end of the connecting portion is connected to the first seat body.

[0015] Beneficial effects of the utility model:

[0016] The utility model discloses a cleaning tool for the seal ring groove of the brake caliper. The cleaning tool has a brush rod designed in the base. Since the brush head of the brush rod can extend out of the base, after the cleaning tool is installed on the driving motor, when the driving motor drives the connecting shaft and the base to rotate, under the action of centrifugal force (the centrifugal force overcomes the elastic force of the elastic reset member), the brush head on the brush rod will extend out of the base. During the rapid rotation of the brush head around the connecting shaft, the seal ring groove in the piston cavity of the brake caliper can be cleaned. In this way, the problem of hydraulic oil leakage in the piston cavity caused by the presence of foreign matter in the seal ring groove during the later use of the brake caliper is avoided, thereby improving the stability of the use of the brake caliper.

[0017] At the same time, by designing an elastic return part, when the centrifugal force cannot overcome the elastic force of the elastic return part, or when not in use, the elastic return part will cause the brush head to partially or completely return to the base. In this way, when the base is extended into the piston cavity, the brush head is not easy to touch the inner wall of the piston cavity, thereby avoiding the brush head scratching the inner wall of the piston cavity and making it easier for the base to extend into the piston cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 is a schematic diagram of the structure of a brake caliper;

[0020] Figure 2 A schematic structural diagram of a cleaning tool for a brake caliper sealing ring groove provided in one embodiment of the utility model;

[0021] Figure 3 is a schematic cross-sectional view of the interior of the base;

[0022] Figure 4 It is a structural schematic diagram of the brush rod;

[0023] Figure 5 for Figure 4 The local schematic diagram of the A in the middle;

[0024] Figure 6 It is a structural schematic diagram of the brush rod and the first seat body;

[0025] Figure 7 is a schematic structural diagram of the first seat body;

[0026] Figure 8 is a schematic diagram of the structure of the second seat body;

[0027] Fig. 9 A schematic diagram of the structure of the cleaning tool extending into the piston cavity of the brake caliper;

[0028] Fig.10 for Fig. 9 Schematic diagram of the cross section under the state;

[0029] Reference numerals:

[0030] 10. Connecting shaft; 11. Connecting part; 20. Base; 21. First hole; 22. Second hole; 23. Third hole; 24. First seat body; 25. Second seat body; 30. Brush rod; 31. Brush head; 32. Limiting flange; 33. Slot; 40. Elastic reset member; 50. Retaining spring. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0032] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] like Figure 1-10As shown, in one embodiment of the utility model, a cleaning tool for a brake caliper sealing ring groove is provided, comprising a connecting shaft 10, a base 20, a brush rod 30 and an elastic reset member 40, wherein the base 20 is fixed at one end of the connecting shaft 10, the brush rod 30 is slidably fitted in the base 20, the sliding direction of the brush rod 30 is perpendicular to the length direction of the connecting shaft 10, a brush head 31 is provided at one end of the brush rod 30, the brush head 31 is coaxially arranged with the brush rod 30, and the brush head 31 can extend out of the base 20. The elastic reset member 40 is arranged in the base 20, and the elastic reset member 40 is used to apply elastic force to the brush rod 30, so that the brush head 31 is partially or completely retracted into the base 20.

[0038] The present embodiment discloses a cleaning tool for the seal ring groove of the brake caliper. The cleaning tool is designed with a brush rod 30 in the base 20. Since the brush head 31 of the brush rod 30 can extend out of the base 20, after the cleaning tool is installed on the driving motor, when the driving motor drives the connecting shaft 10 and the base 20 to rotate, under the action of centrifugal force (the centrifugal force overcomes the elastic force of the elastic reset member 40), the brush head 31 on the brush rod 30 will extend out of the base 20. During the rapid rotation of the brush head 31 around the connecting shaft 10, the seal ring groove in the piston cavity of the brake caliper can be cleaned. In this way, the problem of hydraulic oil leakage in the piston cavity caused by the presence of foreign matter in the seal ring groove during the later use of the brake caliper is avoided, thereby improving the stability of the use of the brake caliper.

[0039] At the same time, by designing the elastic return member 40, when the centrifugal force cannot overcome the elastic force of the elastic return member 40, or when not in use, the elastic return member 40 will cause the brush head 31 to partially or completely return to the base 20. In this way, during the process of the base 20 extending into the piston cavity, the brush head 31 is not easy to touch the inner wall of the piston cavity, thereby avoiding the brush head 31 scratching the inner wall of the piston cavity and making it easier for the base 20 to extend into the piston cavity.

[0040] In one embodiment, the base 20 is provided with a first hole 21, a second hole 22 and a third hole 23 which are connected in sequence, the inner diameter of the second hole 22 is smaller than the inner diameters of the first hole 21 and the third hole 23, and the first hole 21 passes through the outer wall of the base 20. The brush rod 30 is inserted into the first hole 21, the second hole 22 and the third hole 23, and is slidably matched with the second hole 22, the brush head 31 is arranged in the first hole 21, the elastic reset member 40 is arranged in the third hole 23, and the brush rod 30 is provided with a first stopper, which is used to prevent the brush head 31 from retreating into the second hole 22.

[0041] Specifically, the first limiting member is a limiting flange 32, which is arranged on the outer wall of the brush rod 30 located in the first hole 21, the outer diameter of the limiting flange 32 is larger than the inner diameter of the second hole 22, and the brush head 31 is arranged on the side of the limiting flange 32 away from the second hole 22. The brush rod 30, the limiting flange 32 and the brush head 31 are an integrally formed structure, the brush rod 30 and the brush head 31 are coaxially arranged, and the axis of the brush rod 30 is perpendicular to the axis of the connecting shaft 10.

[0042] When the centrifugal force overcomes the elastic force of the elastic reset member 40, the brush head 31 will extend out of the outer wall of the base 20 from the first hole 21, and the base 20 will clean the sealing ring groove during rotation. When the centrifugal force cannot overcome the elastic force of the elastic reset member 40, or when not in use, the elastic reset member 40 will make the brush head 31 partially or completely return to the first hole 21, and the position of the brush head 31 returning to the first hole 21 will be limited by the stopper of the limiting flange 32.

[0043] In one embodiment, one end of the brush head 31 away from the limiting flange 32 extends out of the first hole 21. This structural design enables the brush head 31 to contact the sealing ring groove more quickly during the high-speed rotation of the base 20, thereby shortening the stroke of the brush head 31 during the extension process.

[0044] In one embodiment, the third hole 23 passes through the outer wall of the base 20. This structural design facilitates the processing of the first hole 21, the second hole 22 and the third hole 23, thereby reducing the processing difficulty.

[0045] In one embodiment, a second limiter is provided on the brush rod 30, and the second limiter and the elastic reset member 40 are both located in the third hole 23. The elastic reset member 40 is sleeved on the brush rod 30, and the two ends of the elastic reset member 40 respectively abut against the second limiter and the connection between the second hole 22 and the third hole 23. Specifically, the outer wall of the brush rod 30 is recessed to form an annular clamping groove 33, the second limiter is a clamping spring 50, the clamping spring 50 is clamped in the clamping groove 33, and the elastic reset member 40 is a spring.

[0046] When the centrifugal force overcomes the elastic force of the elastic reset member 40, the brush head 31 will extend out of the outer wall of the base 20 from the first hole 21, and during this process, the clamping spring 50 will compress the elastic reset member 40. When the centrifugal force cannot overcome the elastic force of the elastic reset member 40, or when not in use, the elastic reset member 40 will push the clamping spring 50, so that the brush head 31 is partially retracted into the first hole 21.

[0047] In one embodiment, the base 20 is a cylindrical structure, and the axis of the base 20 coincides with the axis of the connecting shaft 10. The base 20 includes a first base body 24 and a second base body 25 connected to each other, and the first base body 24 is connected to the connecting shaft 10. The first base body 24 and the second base body 25 are connected by bolts. The shape design of the base 20 can effectively reduce air resistance during the rotation process. At the same time, the base 20 is designed as a split structure, which is convenient for processing each component and reduces the processing difficulty.

[0048] In one embodiment, in order to improve the structural strength of the connection position between the connecting shaft 10 and the first seat body 24, a connecting portion 11 is provided at one end of the connecting shaft 10. The connecting portion 11 has a conical structure. The small diameter end of the connecting portion 11 is connected to the connecting shaft 10, and the large diameter end of the connecting portion 11 is connected to the first seat body 24.

[0049] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A cleaning tool for a brake caliper sealing ring groove, characterized in that: include: Connecting shaft (10); A base (20) is arranged at one end of the connecting shaft (10); A brush rod (30) is slidably fitted in the base (20); one end of the brush rod (30) is provided with a brush head (31), and the brush head (31) can extend out of the base (20); as well as An elastic reset member (40) is arranged in the base (20), and the elastic reset member (40) is used to apply elastic force to the brush rod (30) so that the brush head (31) is partially or completely retracted into the base (20).

2. The cleaning tool for brake caliper sealing ring groove according to claim 1, characterized in that: The base (20) is provided with a first hole (21), a second hole (22) and a third hole (23) which are connected in sequence, the inner diameter of the second hole (22) is smaller than the inner diameters of the first hole (21) and the third hole (23), and the first hole (21) passes through the outer wall of the base (20); The brush rod (30) is inserted into the first hole (21), the second hole (22) and the third hole (23), and is slidably matched with the second hole (22); the brush head (31) is arranged in the first hole (21); the elastic reset member (40) is arranged in the third hole (23); and a first limiting member is provided on the brush rod (30), and the first limiting member is used to prevent the brush head (31) from retreating into the second hole (22).

3. The cleaning tool for brake caliper sealing ring groove according to claim 2, characterized in that: The first limiting member is a limiting flange (32), and the limiting flange (32) is arranged on the outer wall of the brush rod (30) located in the first hole (21). The outer diameter of the limiting flange (32) is larger than the inner diameter of the second hole (22), and the brush head (31) is arranged on a side of the limiting flange (32) away from the second hole (22).

4. The cleaning tool for brake caliper sealing ring groove according to claim 3, characterized in that: One end of the brush head (31) away from the limiting flange (32) extends out of the first hole (21).

5. The cleaning tool for brake caliper sealing ring groove according to claim 2, characterized in that: The brush rod (30) is provided with a second position-limiting member, and the second position-limiting member and the elastic return member (40) are both located in the third hole (23); the elastic return member (40) is sleeved on the brush rod (30), and two ends of the elastic return member (40) respectively abut against the second position-limiting member and the connection between the second hole (22) and the third hole (23).

6. The cleaning tool for brake caliper sealing ring groove according to claim 5, characterized in that: The outer wall of the brush rod (30) is recessed to form an annular clamping groove (33); the second position-limiting member is a clamping spring (50); and the clamping spring (50) is clamped in the clamping groove (33).

7. The cleaning tool for brake caliper sealing ring groove according to claim 1, characterized in that: The base (20) is a cylindrical structure, and the axis of the base (20) coincides with the axis of the connecting shaft (10).

8. The cleaning tool for brake caliper sealing ring groove according to claim 7, characterized in that: The base (20) comprises a first base body (24) and a second base body (25) which are connected, and the first base body (24) is connected to the connecting shaft (10).

9. The cleaning tool for brake caliper sealing ring groove according to claim 8, characterized in that: The first seat body (24) and the second seat body (25) are connected by bolts.

10. The cleaning tool for brake caliper sealing ring groove according to claim 8, characterized in that: A connecting portion (11) is provided at one end of the connecting shaft (10), and the connecting portion (11) is in a conical structure. The small diameter end of the connecting portion (11) is connected to the connecting shaft (10), and the large diameter end of the connecting portion (11) is connected to the first seat body (24).

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