Spanner hoisting connecting device for narrow space and EMB spanner

Abstract

The utility model belongs to the technical field of automobile brake installation, disclose a caliper hoisting connecting device and EMB caliper for narrow space, caliper hoisting connecting device for narrow space is used for hoisting connection of caliper, and the first assembly hole and the second assembly hole are seted up to caliper, including connecting plate, first dust cover, first guide pin and second guide pin, connecting plate sets up hoisting hole, first fixed hole and second fixed hole, first dust cover is equipped with dust chamber of one side opening, first dust cover can be connected in first assembly hole, the first end of first guide pin can be inserted into dust chamber from the opening, along the axial direction of first guide pin, its second end is fixedly connected with first fixed hole, the first end of second guide pin can be inserted into second assembly hole, along the axial direction of second guide pin, its second end is fixedly connected with second fixed hole. The caliper hoisting connecting device for narrow space improves the adaptability of caliper installation, and reduces the difficulty of caliper installation.

Description

Technical Field

[0001] This utility model relates to the field of automotive brake installation technology, and in particular to a caliper lifting device and an EMB caliper for use in confined spaces. Background Technology

[0002] In automotive braking, wheel disc braking still primarily relies on transmission-driven brake calipers. However, with the development of intelligent systems, some existing brake calipers have been replaced by electronic mechanical braking system calipers. These calipers are directly driven by a motor to achieve braking, completely eliminating the brake fluid, hydraulic lines, and vacuum booster structures found in traditional hydraulic braking systems. EMB calipers offer fast response and high control precision, increasing the safety of emergency braking. However, because EMB calipers are located in a relatively small space, their installation is more difficult.

[0003] In related technologies, caliper connecting plates are typically used to fix the caliper and the connecting plate together with bolts, and the connecting plate is then attached to the mounting position. However, when connecting the caliper and the connecting plate, a specific mounting space needs to be matched, resulting in poor installation adaptability of the caliper and difficulty in meeting the wheel edge layout requirements of different vehicle models. Furthermore, in order to match the fixing strength of the bolts, the thickness of the caliper and the connecting plate needs to be increased, which further increases the overall weight of the caliper and the size of the connecting plate, further compressing the wheel edge mounting space and exacerbating the installation difficulty.

[0004] Therefore, there is an urgent need for a clamp lifting and connection device for confined spaces to solve the above problems. Utility Model Content

[0005] One of the objectives of this invention is to provide a caliper hoisting connection device for confined spaces. The connection is stable and the positioning is precise, requiring no additional space for operation. This improves the adaptability of caliper installation, eliminates the need for traditional bolt connections, reduces the thickness of the caliper and the connecting plate, increases the space available for caliper installation, reduces the difficulty of caliper installation, and ensures the stability of caliper hoisting.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A caliper hoisting and connecting device for use in confined spaces, used for hoisting and connecting calipers, the calipers having a first mounting hole and a second mounting hole, comprising:

[0008] A connecting plate, which has a hoisting hole, a first fixing hole, and a second fixing hole;

[0009] The first dust cover has a dustproof cavity with an opening on one side and can be snapped into the first mounting hole;

[0010] A first guide pin, the first end of which can be inserted into the dustproof cavity through the opening, and the second end of which is fixedly connected to the first fixing hole along the axial direction of the first guide pin;

[0011] The second guide pin has a first end that can be inserted into the second mounting hole, and its second end that is fixedly connected to the second fixing hole along the axial direction of the second guide pin.

[0012] Preferably, the first mounting hole is a through hole, and the first dust cover includes the following components connected in sequence:

[0013] The first locking part can pass through the first mounting hole and abut against the end face of the caliper along the axial direction of the first mounting hole;

[0014] An insertion portion, the outer peripheral surface of which is fitted and connected to the inner peripheral surface of the first mounting hole;

[0015] The second locking part is capable of abutting against the opposite end face of the caliper along the axial direction of the first mounting hole, and the second locking part is provided with the opening.

[0016] Preferably, the first guide pin includes:

[0017] A first pin body, the first end of which can be inserted into the insertion part from the opening;

[0018] The first protruding ring protrudes from the outer peripheral surface of the first pin body along the radial direction of the first pin body.

[0019] The second protruding ring protrudes from the outer peripheral surface of the first pin body and is spaced apart from the first protruding ring along the axial direction of the first pin body to form a first limiting groove between the first protruding ring and the second protruding ring. The end of the second snap-fit ​​portion away from the insertion portion is limited and connected to the first limiting groove, and the inner wall of the second snap-fit ​​portion is fitted and connected to the groove wall of the first limiting groove.

[0020] Preferably, the dustproof cavity is filled with grease, and the first convex ring and the second convex ring are arranged sequentially from the first end of the first pin body to the second end of the first pin body. The outer peripheral wall of the first convex ring can abut against the inner wall of the dustproof cavity of the second snap-fit ​​portion. The first convex ring is a conical convex ring, and the cross-sectional area of ​​the conical convex ring gradually increases along the direction from the first end of the first pin body to the second end of the first pin body. The end face of the opening abuts against the end face of the second convex ring along the axial direction of the first pin body.

[0021] Preferably, the end face of the second convex ring facing away from the first convex ring can abut against the end face of the connecting plate.

[0022] Preferably, the clamp lifting connection device for confined spaces also includes:

[0023] The second dust cover is fitted onto the second guide pin, and one end of the second dust cover can be engaged with the second mounting hole.

[0024] Preferably, the second guide pin includes:

[0025] The second pin body, the first end of which can be inserted into the second mounting hole;

[0026] The third protruding ring protrudes from the outer wall surface of the second pin body along the radial direction of the second pin body.

[0027] The fourth protruding ring protrudes from the outer wall surface of the second pin body and is arranged along the axial direction of the second pin body. The fourth protruding ring is spaced apart from the third protruding ring to form a second limiting groove between the third protruding ring and the fourth protruding ring. The other end of the second dust cover can be limited and connected in the second limiting groove, and the inner wall of the end of the second dust cover away from the caliper is fitted and connected to the groove wall of the second limiting groove.

[0028] Preferably, the third protruding ring and the fourth protruding ring are arranged sequentially from the first end to the second end of the second pin body. The end face of the third protruding ring facing the fourth protruding ring can abut against the inner wall surface of the second dust cover, and the end face of the second dust cover abuts against the end face of the fourth protruding ring along the axial direction of the second pin body.

[0029] Preferably, the other end of the first guide pin is threaded to the first fixing hole, and the other end of the second guide pin is threaded to the second fixing hole.

[0030] The second objective of this invention is to provide an EMB caliper that improves the installation method and efficiency of EMB calipers.

[0031] To achieve this objective, the present invention adopts the following technical solution:

[0032] An EMB caliper is attached to an installation component using the caliper lifting connection device for confined spaces as described above.

[0033] The beneficial effects of this utility model are:

[0034] This utility model provides a caliper hoisting and connection device for confined spaces, used for hoisting and connecting calipers. The caliper has a first mounting hole and a second mounting hole. During hoisting, a first dust cover is first inserted into the first mounting hole of the caliper, with the opening of the dust cover facing the direction to be connected. Then, one end of a first guide pin is inserted into the dust cover of the first dust cover, and the other end is fixed to the first fixing hole of the connecting plate. Next, one end of a second guide pin is inserted into the second mounting hole of the caliper, and the other end is fixed to the second fixing hole of the connecting plate, completing the hoisting and connection of the caliper. By using two guide pins to engage with the two mounting holes respectively, the connection is stable and the positioning is precise, requiring no additional space for operation, improving the adaptability of caliper installation. It also eliminates the need for traditional bolt connections, reducing the thickness of the caliper and the connecting plate, increasing the space available for caliper installation, reducing the difficulty of caliper installation, and ensuring the stability of caliper hoisting.

[0035] This utility model also provides an EMB caliper. The EMB caliper utilizes the aforementioned caliper hoisting and connecting device for confined spaces to hoist and connect the EMB caliper to the mounting component, thereby improving the traditional installation method of EMB calipers and increasing the installation efficiency of EMB calipers. Attached Figure Description

[0036] Figure 1 This is a first schematic diagram of the connection between the caliper hoisting connection device for confined spaces and the EMB caliper as described in this embodiment of the present invention;

[0037] Figure 2 This is a schematic diagram of the EMB caliper described in an embodiment of this utility model;

[0038] Figure 3 This is a second schematic diagram showing the connection between the caliper hoisting connection device for confined spaces and the EMB caliper as described in this embodiment of the present invention;

[0039] Figure 4 This is a first schematic diagram of the clamp lifting and connecting device for confined spaces described in this embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the first dust cover according to an embodiment of the present utility model;

[0041] Figure 6 This is a schematic diagram of the first guide pin described in an embodiment of the present utility model;

[0042] Figure 7 This is a second schematic diagram of the clamp lifting and connecting device for confined spaces described in this embodiment of the present invention;

[0043] Figure 8 This is a schematic diagram of the second dust cover according to an embodiment of the present utility model;

[0044] Figure 9 This is a schematic diagram of the second guide pin described in an embodiment of the present invention.

[0045] In the picture:

[0046] 10. Caliper; 101. First mounting hole; 102. Second mounting hole;

[0047] 1. Connecting plate; 11. Lifting hole; 12. First fixing hole; 13. Second fixing hole;

[0048] 2. First dust cover; 21. Dustproof cavity; 22. First snap-fit ​​part; 23. Insertion part; 24. Second snap-fit ​​part;

[0049] 3. First guide pin; 31. First pin body; 32. First convex ring; 33. Second convex ring; 34. First limiting groove;

[0050] 4. Second guide pin; 41. Second pin body; 42. Third convex ring; 43. Fourth convex ring; 44. Second limiting groove;

[0051] 5. Second dust cover. Detailed Implementation

[0052] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0056] This embodiment provides a caliper hoisting and connection device for confined spaces, used to hoist and connect a caliper 10. The caliper 10 has a first mounting hole 101 and a second mounting hole 102, such as... Figures 1-4 As shown, the clamp lifting connection device for confined spaces includes a connecting plate 1, a first dust cover 2, a first guide pin 3, and a second guide pin 4. The connecting plate 1 has a lifting hole 11, a first fixing hole 12, and a second fixing hole 13. The first dust cover 2 has a dustproof cavity 21 with an opening on one side. The first dust cover 2 can be snapped into the first assembly hole 101. The first end of the first guide pin 3 can be inserted into the dustproof cavity 21 through the opening. Along the axial direction of the first guide pin 3, its second end is fixedly connected to the first fixing hole 12. The first end of the second guide pin 4 can be inserted into the second assembly hole 102. Along the axial direction of the second guide pin 4, its second end is fixedly connected to the second fixing hole 13.

[0057] When hoisting the caliper 10, firstly, the first dust cover 2 is inserted into the first mounting hole 101 of the caliper 10, so that the opening of the dust cover 21 faces the direction to be connected. Then, one end of the first guide pin 3 is inserted into the dust cover 21 of the first dust cover 2, and the other end is fixed to the first fixing hole 12 of the connecting plate 1. Then, one end of the second guide pin 4 is inserted into the second mounting hole 102 of the caliper 10, and the other end is fixed to the second fixing hole 13 of the connecting plate 1, thus completing the hoisting connection of the caliper 10. By having two guide pins engage with two mounting holes respectively, the connection is stable and the positioning is precise. No additional space is required for operation, which improves the adaptability of the caliper 10 installation. Furthermore, it eliminates the need for traditional bolt connections, reduces the thickness of the caliper 10 and the connecting plate 1, increases the installation space of the caliper 10, reduces the difficulty of installing the caliper 10, and ensures the stability of the caliper 10 hoisting.

[0058] Specifically, such as Figures 1-3As shown, in this embodiment, the other end of the first guide pin 3 is threadedly connected to the first fixing hole 12, and the other end of the second guide pin 4 is threadedly connected to the second fixing hole 13. In other embodiments, the other end of the first guide pin 3 is riveted to the first fixing hole 12, and the other end of the second guide pin 4 is riveted to the second fixing hole 13; or, the other end of the first guide pin 3 is welded to the first fixing hole 12, and the other end of the second guide pin 4 is welded to the second fixing hole 13, etc. No limitations are imposed here.

[0059] Optionally, such as Figure 4 and Figure 5 As shown, the first mounting hole 101 is a through hole, and the first dust cover 2 includes a first snap-fit ​​part 22, a plug part 23 and a second snap-fit ​​part 24 connected in sequence. The first snap-fit ​​part 22 can pass through the first mounting hole 101 and abut against the end face of the caliper 10 along the axial direction of the first mounting hole 101. The outer peripheral surface of the plug part 23 is in close contact with the inner peripheral surface of the first mounting hole 101. The second snap-fit ​​part 24 can abut against the opposite end face of the caliper 10 along the axial direction of the first mounting hole 101, and the second snap-fit ​​part 24 is provided with an opening.

[0060] When installing the first dust cover 2 onto the caliper 10, the first snap-fit ​​part 22 is first passed through the first mounting hole 101 from one end of the caliper 10 until the second snap-fit ​​part 24 abuts against the end face of the caliper 10. At this time, the outer peripheral surface of the insert part 23 is embedded in the first mounting hole 101 and fits against its inner peripheral surface, and the first snap-fit ​​part 22 abuts against the other end face of the caliper 10, so that the first dust cover 2 and the caliper 10 form a snap-fit ​​fixation. The double-sided fitting method ensures the installation firmness of the first dust cover 2. At the same time, the outer peripheral surface of the insert part 23 is embedded in the first mounting hole 101 and fits against its inner peripheral surface. When the first guide pin 3 is inserted into the dustproof cavity 21, the insert part 23 serves as a buffer and filling structure for the inner wall surface of the first guide pin 3 and the first mounting hole 101. The fitting setting can not only ensure the connection stability between the first guide pin 3 and the first mounting hole 101, but also avoid wear caused by hard contact between the first guide pin 3 and the first mounting hole 101.

[0061] Optionally, such as Figures 4-6As shown, the first guide pin 3 includes a first pin body 31, a first protruding ring 32, and a second protruding ring 33. The first end of the first pin body 31 can be inserted into the insertion part 23 through the opening. Along the radial direction of the first pin body 31, the first protruding ring 32 protrudes from the outer peripheral surface of the first pin body 31, and the second protruding ring 33 protrudes from the outer peripheral surface of the first pin body 31. Along the axial direction of the first pin body 31, the second protruding ring 33 and the first protruding ring 32 are spaced apart to form a first limiting groove 34 between the first protruding ring 32 and the second protruding ring 33. The end of the second snap-fit ​​part 24 away from the insertion part 23 is limited and connected to the first limiting groove 34, and the inner wall of the second snap-fit ​​part 24 is fitted and connected to the groove wall of the first limiting groove 34.

[0062] By providing a first protruding ring 32 and a second protruding ring 33 on the outer wall of the first pin body 31, a first limiting groove 34 is formed between the first protruding ring 32 and the second protruding ring 33. The end of the second engaging part 24 away from the insertion part 23 is limited and connected to the first limiting groove 34. The inner wall of the second engaging part 24 is fitted and connected to the groove wall of the first limiting groove 34, so that the inner wall of the second engaging part 24 is clamped to the groove wall of the first limiting groove 34, so that there is no gap between the inner wall of the second engaging part 24 and the groove wall of the first limiting groove 34, thus preventing external dust or impurities from entering the dustproof cavity 21 and effectively ensuring the cleanliness of the dustproof cavity 21. At the same time, the end of the second engaging part 24 away from the insertion part 23 is limited and connected to the first limiting groove 34, restricting the movement of the second engaging part 24 relative to the first limiting groove 34 in the axial direction of the first pin body 31, thus ensuring the connection stability of the first dustproof sleeve 2 and the first guide pin 3.

[0063] Specifically, such as Figures 4-6As shown, the dustproof cavity 21 is filled with grease, and from the first end of the first pin body 31 to the second end of the first pin body 31, the first convex ring 32 and the second convex ring 33 are arranged in sequence. The outer peripheral wall of the first convex ring 32 can abut against the inner wall of the dustproof cavity 21 of the second snap-fit ​​part 24. The first convex ring 32 is a conical convex ring, and the cross-sectional area of ​​the conical convex ring gradually increases along the direction from the first end of the first pin body 31 to the second end of the first pin body 31. And along the axial direction of the first pin body 31, the end face of the opening abuts against the end face of the second convex ring 33. By filling the dustproof cavity 21 with grease, the friction between the inner wall of the dustproof cavity 21 and the outer wall of the first pin body 31 can be reduced, thus reducing the frictional wear of the first pin body 31. This also facilitates the installation of the first pin body 31. Simultaneously, the first convex ring 32 is configured as a tapered convex ring, and the cross-sectional area of ​​the tapered convex ring gradually increases along the direction from the first end to the second end of the first pin body 31. This creates a reverse guiding structure for the grease on the tapered surface of the tapered convex ring. When the grease tends to seep into the opening of the second locking part 24, the tapered convex ring... The conical surface guides the grease in the opposite direction, preventing it from moving into the gap between the inner wall of the dustproof cavity 21 of the second snap-fit ​​part 24 and the groove wall of the first limiting groove 34. This prevents the grease in the dustproof cavity 21 from seeping out from the gap between the inner wall of the second snap-fit ​​part 24 and the groove wall of the first limiting groove 34, ensuring the sealing performance of the dustproof cavity 21 and preventing the loss of grease from reducing the lubrication effect on the first pin body 31. At the same time, the end face of the opening abuts against the end face of the second convex ring 33, further preventing external impurities from seeping into the grease and then penetrating into the dustproof cavity 21.

[0064] Specifically, such as Figure 4 As shown, the end face of the second convex ring 33 facing away from the first convex ring 32 can abut against the end face of the connecting plate 1. With the above arrangement, when the other end of the first pin body 31 is threadedly connected to the first fixing hole 12, the end face of the second convex ring 33 abuts against the end face of the connecting plate 1, so that the end face of the second convex ring 33 and the end face of the connecting plate 1 form surface friction. The formation of surface friction improves the anti-slip ability of the connecting plate 1 and the second convex ring 33, and improves the stability and rigidity of the connecting plate 1 and the first pin body 31 after connection.

[0065] Optionally, such as Figure 3 , Figure 7 and Figure 8As shown, the clamp lifting connection device for confined spaces also includes a second dust cover 5. The second dust cover 5 is fitted onto the second guide pin 4, and one end of the second dust cover 5 can be engaged with the second mounting hole 102. The second dust cover 5 can shield the mating part of the second guide pin 4 and the second mounting hole 102. On the one hand, it can prevent dust or sand and other impurities from entering the gap between the second guide pin 4 and the second mounting hole 102, avoiding wear of the guide pin caused by impurities, and ensuring the stability and reliability of the connection between the second guide pin 4 and the second mounting hole 102. On the other hand, the engagement of one end of the second dust cover 5 with the second mounting hole 102 can ensure the installation stability of the second dust cover 5, making it less likely to fall off during vibration and shaking during lifting operations, and continuously playing a dust protection role.

[0066] Optionally, such as Figure 7 and Figure 9 As shown, the second guide pin 4 includes a second pin body 41, a third protruding ring 42, and a fourth protruding ring 43. The first end of the second pin body 41 can be inserted into the second assembly hole 102. Along the radial direction of the second pin body 41, the third protruding ring 42 protrudes from the outer wall surface of the second pin body 41, and the fourth protruding ring 43 protrudes from the outer wall surface of the second pin body 41. Along the axial direction of the second pin body 41, the fourth protruding ring 43 and the third protruding ring 42 are spaced apart to form a second limiting groove 44 between the third protruding ring 42 and the fourth protruding ring 43. The other end of the second dust cover 5 can be limited and connected in the second limiting groove 44, and the inner wall of the end of the second dust cover 5 away from the caliper 10 is in close contact with the groove wall of the second limiting groove 44.

[0067] By providing a third protruding ring 42 and a fourth protruding ring 43 on the outer wall of the second pin body 41, a second limiting groove 44 is formed between the third protruding ring 42 and the fourth protruding ring 43. The other end of the second dust cover 5 can be limited and connected within the second limiting groove 44. The inner wall of the end of the second dust cover 5 away from the caliper 10 is fitted and connected to the groove wall of the second limiting groove 44, so that the inner wall of the end of the second dust cover 5 away from the caliper 10 is clamped to the groove wall of the second limiting groove 44. This ensures that there is no gap between the inner wall of the end of the second dust cover 5 away from the caliper 10 and the groove wall of the second limiting groove 44, preventing external dust or impurities from entering the second dust cover 5 and effectively ensuring the cleanliness of the second dust cover 5. The other end of the second dust cover 5 is limited and connected to the second limiting groove 44, restricting the movement of the second dust cover 5 relative to the second limiting groove 44 along the axial direction of the second pin body 41, thus ensuring the connection stability of the second dust cover 5 and the second guide pin 4.

[0068] Optionally, such as Figure 7As shown, from the first end to the second end of the second pin body 41, a third protruding ring 42 and a fourth protruding ring 43 are sequentially arranged. The end face of the third protruding ring 42 facing the fourth protruding ring 43 can abut against the inner wall surface of the second dust cover 5, and along the axial direction of the second pin body 41, the end face of the second dust cover 5 abuts against the end face of the fourth protruding ring 43. This further prevents external dust and other impurities from entering the second dust cover 5.

[0069] Optionally, the second mounting hole 102 may be filled with grease. The grease in the second mounting hole 102 reduces friction between the inner wall of the second mounting hole 102 and the outer wall of the second pin body 41, thus reducing frictional wear on the second pin body 41, and also facilitates the installation of the second pin body 41.

[0070] Optionally, both the first dust cover 2 and the second dust cover 5 are made of flexible material. In this embodiment, both the first dust cover 2 and the second dust cover 5 are made of silicone material. In other embodiments, both the first dust cover 2 and the second dust cover 5 are made of rubber material, etc. No limitations are imposed here.

[0071] This embodiment also provides an EMB caliper, which is connected to the mounting component using a caliper lifting connection device for confined spaces. This caliper lifting connection device for confined spaces changes the traditional installation method of EMB calipers, improving the installation efficiency of EMB calipers when installed on the mounting component.

[0072] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A caliper hoisting and connecting device for confined spaces, used for hoisting and connecting calipers (10), wherein the calipers (10) have a first mounting hole (101) and a second mounting hole (102), characterized in that, include: The connecting plate (1) is provided with a hoisting hole (11), a first fixing hole (12) and a second fixing hole (13); The first dust cover (2) has a dustproof cavity (21) with an opening on one side, and the first dust cover (2) can be snapped into the first assembly hole (101). The first guide pin (3) has a first end that can be inserted into the dustproof cavity (21) from the opening, and its second end is fixedly connected to the first fixing hole (12) along the axial direction of the first guide pin (3). The second guide pin (4) has a first end that can be inserted into the second assembly hole (102), and its second end is fixedly connected to the second fixing hole (13) along the axial direction of the second guide pin (4).

2. The clamp lifting and connecting device for confined spaces according to claim 1, characterized in that, The first assembly hole (101) is a through hole, and the first dust cover (2) includes the following components connected in sequence: The first snap-fit ​​portion (22) can pass through the first mounting hole (101) and abut against the end face of the caliper (10) along the first mounting hole (101); Insertion part (23), the outer peripheral surface of the insertion part (23) is fitted and connected to the inner peripheral surface of the first assembly hole (101); The second snap-fit ​​portion (24) is axially abutting against the opposite end face of the caliper (10) along the first mounting hole (101), and the second snap-fit ​​portion (24) is provided with the opening.

3. The clamp lifting and connecting device for confined spaces according to claim 2, characterized in that, The first guide pin (3) includes: First pin body (31), the first end of the first pin body (31) can be inserted into the insertion part (23) from the opening; The first protruding ring (32) protrudes from the outer peripheral surface of the first pin body (31) along the radial direction of the first pin body (31); The second protruding ring (33) protrudes from the outer peripheral surface of the first pin body (31) and is arranged along the axial direction of the first pin body (31). The second protruding ring (33) and the first protruding ring (32) are spaced apart to form a first limiting groove (34) between the first protruding ring (32) and the second protruding ring (33). The end of the second snap-fit ​​part (24) away from the insertion part (23) is limited and connected to the first limiting groove (34), and the inner wall of the second snap-fit ​​part (24) is fitted and connected to the groove wall of the first limiting groove (34).

4. The clamp lifting and connecting device for confined spaces according to claim 3, characterized in that, The dustproof cavity (21) is filled with grease, and from the first end of the first pin body (31) to the second end of the first pin body (31), the first convex ring (32) and the second convex ring (33) are arranged in sequence. The outer peripheral wall of the first convex ring (32) can abut against the inner wall of the dustproof cavity (21) of the second snap-fit ​​part (24). The first convex ring (32) is a conical convex ring, and the cross-sectional area of ​​the conical convex ring gradually increases along the direction from the first end of the first pin body (31) to the second end of the first pin body (31). Along the axial direction of the first pin body (31), the end face of the opening abuts against the end face of the second convex ring (33).

5. The clamp lifting and connecting device for confined spaces according to claim 4, characterized in that, The end face of the second protruding ring (33) facing away from the first protruding ring (32) can abut against the end face of the connecting plate (1).

6. The clamp lifting and connecting device for confined spaces according to any one of claims 1-5, characterized in that, The clamp lifting connection device for confined spaces also includes: The second dust cover (5) is fitted onto the second guide pin (4), and one end of the second dust cover (5) can be engaged with the second assembly hole (102).

7. The clamp lifting and connecting device for confined spaces according to claim 6, characterized in that, The second guide pin (4) includes: The second pin body (41) has a first end that can be inserted into the second assembly hole (102). The third protruding ring (42) protrudes from the outer wall surface of the second pin body (41) along the radial direction of the second pin body (41); The fourth protruding ring (43) protrudes from the outer wall surface of the second pin body (41) and is arranged along the axial direction of the second pin body (41). The fourth protruding ring (43) is spaced apart from the third protruding ring (42) to form a second limiting groove (44) between the third protruding ring (42) and the fourth protruding ring (43). The other end of the second dust cover (5) can be limited and connected in the second limiting groove (44), and the inner wall of the end of the second dust cover (5) away from the caliper (10) is fitted and connected to the groove wall of the second limiting groove (44).

8. The clamp lifting and connecting device for confined spaces according to claim 7, characterized in that, From the first end of the second pin body (41) to the second end of the second pin body (41), the third convex ring (42) and the fourth convex ring (43) are arranged in sequence. The end face of the third convex ring (42) facing the fourth convex ring (43) can abut against the inner wall surface of the second dust cover (5), and along the axial direction of the second pin body (41), the end face of the second dust cover (5) abuts against the end face of the fourth convex ring (43).

9. The clamp lifting and connecting device for confined spaces according to any one of claims 1-5, characterized in that, The other end of the first guide pin (3) is threaded to the first fixing hole (12), and the other end of the second guide pin (4) is threaded to the second fixing hole (13).

10. An EMB caliper, characterized in that, The EMB caliper is connected to the mounting component using the caliper lifting connection device for confined spaces as described in any one of claims 1-9.

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