Wear-resistant automobile door connecting piece

Abstract

The utility model belongs to the technical field of automobile parts, concretely relates to a wear -resisting type automobile door connecting piece, this wear -resisting type automobile door connecting piece, including the connecting piece body, the inner wall of connecting piece body is pasted and is provided with wear -resisting bushing, the upper surface of connecting piece body is fixedly connected with U -shaped board, the inner wall of U -shaped board is fixedly connected with first spring, the bottom of first spring is fixedly connected with fixed block, the upper surface of U -shaped board is equipped with threaded hole, the inner wall of threaded hole is connected with bolt in screw thread, the bottom of bolt and the upper surface of fixed block are pasted. This wear -resisting type automobile door connecting piece sets up wear -resisting bushing by polytetrafluoroethylene composite material and is made in connecting piece body, can effectively improve the wear resistance of the connecting piece inside contact surface, and then reduced the abrasion caused by long -term friction, prolongs the service life of the connecting piece, and reduces the maintenance replacement frequency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a wear-resistant automotive door connector. Background Technology

[0002] Automotive door connectors are crucial components that connect the door to the vehicle body, and their performance directly affects the smoothness, stability, and lifespan of the door's opening and closing. During vehicle use, doors are frequently opened and closed, and the door connectors bear the weight of the door, the impact force during opening and closing, and the friction between them over a long period of time.

[0003] Currently, most common car door connectors on the market are made of ordinary steel or alloy materials, with no special wear-resistant structure on the surface or only simple electroplating treatment. As the usage time increases, the contact parts of the connectors are prone to dimensional deviations due to wear, resulting in abnormal noises, jamming, or even loosening of the door when opening and closing. This not only affects the user experience but also poses certain safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a wear-resistant automotive door connector, which solves the problem that existing automotive door connectors are prone to wear and tear on the contact parts after long-term use due to insufficient wear resistance, resulting in dimensional deviations, abnormal noises when opening and closing the door, jamming, or even loose connections, affecting the user experience and posing safety hazards.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A wear-resistant automotive door connector includes a connector body, an inner wall of which is fitted with a wear-resistant bushing, a U-shaped plate fixedly connected to the upper surface of the connector body, a first spring fixedly connected to the inner wall of the U-shaped plate, a fixing block fixedly connected to the bottom of the first spring, a threaded hole on the upper surface of the U-shaped plate, a bolt threadedly connected to the inner wall of the threaded hole, the bottom end of the bolt fitting against the upper surface of the fixing block, a first through hole on the upper surface of the connector body, a guide sleeve fixedly connected to the inner wall of the first through hole, the inner wall of the guide sleeve slidingly connected to the surface of the fixing block, a fixing groove on the upper surface of the wear-resistant bushing, the inner wall of the fixing groove fitting against the surface of the fixing block, and a fixing element fixedly connected to the surface of the connector body.

[0007] The present invention is further configured such that: a lubrication groove is formed on the inner wall of the wear-resistant bushing; a first grease inlet hole is formed inside the wear-resistant bushing; a second grease inlet hole is formed on the surface of the connector body; a first hollow plate is fixedly connected to the left and right sides of the U-shaped plate and the surface of the connector body; a grease reservoir is fixedly connected to the side of the first hollow plate; a second hollow plate is fixedly connected to the side of the grease reservoir and the surface of the connector body; a second through hole is formed inside the second hollow plate; a second spring is fixedly connected to the inner wall of the second through hole; a grease-pushing rubber ring is fixedly connected to the end of the second spring; the surface of the grease-pushing rubber ring is slidably connected to the inner wall of the grease reservoir; the inner wall of the grease-pushing rubber ring is slidably connected to the surface of the connector body; a grease inlet pipe is fixedly connected to the upper surface of the grease-pushing rubber ring; and a sealing plug is threadedly connected to the inner wall of the grease inlet pipe.

[0008] The present invention is further configured such that the grease inlet pipe and the second grease inlet hole are both located between the grease pushing rubber ring and the first hollow plate, and the first grease inlet hole is located between the lubrication groove and the second grease inlet hole.

[0009] The present invention is further provided that ventilation grooves are provided on both the left and right sides of the fixing block.

[0010] The present invention is further configured such that a first ring is fixedly connected to the inner wall of the grease inlet tube, a third spring is fixedly connected to the inner wall of the first ring, a sealing ball is fixedly connected to the bottom of the third spring, and a second ring is fixedly connected to the inner wall of the grease inlet tube, with the bottom of the second ring fitting against the upper surface of the sealing ball.

[0011] The present invention is further configured such that the diameter of the sealing ball is smaller than the inner diameter of the grease inlet tube, the diameter of the sealing ball is larger than the inner diameter of the second ring, and the pulling force of the third spring on the sealing ball is greater than the weight of the sealing ball.

[0012] The technical effects achieved by this utility model are as follows:

[0013] This utility model discloses a wear-resistant automotive door connector. By incorporating a wear-resistant bushing made of polytetrafluoroethylene composite material within the connector body, the wear resistance of the internal contact surfaces of the connector can be effectively improved, thereby reducing wear caused by long-term friction, extending the service life of the connector, and reducing the frequency of maintenance and replacement. At the same time, through the cooperation of the U-shaped plate, the first spring, the fixing block, the threaded hole, the bolt, the first through hole, the guide sleeve, the fixing groove, and the fixing component, maintenance personnel can easily disassemble and assemble the wear-resistant bushing by rotating the bolt, thus simplifying the subsequent maintenance process of the connector.

[0014] This utility model discloses a wear-resistant automotive door connector. Through the pushing force of the second spring on the grease-pushing rubber ring, the grease in the grease reservoir can automatically enter the lubrication groove through the first and second grease inlets. At this time, the grease in the lubrication groove can effectively reduce the direct friction between the wear-resistant bushing and the door connecting shaft. At the same time, since the grease reservoir can store grease, the contact surface between the wear-resistant bushing and the door connecting shaft can be lubricated for a long time, thereby effectively improving the service life of the wear-resistant bushing. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 yes Figure 1 Sectional view at point AA;

[0017] Figure 3 yes Figure 1 Sectional view at point BB;

[0018] Figure 4 yes Figure 3 Enlarged view at point C;

[0019] Figure 5 This is a top view of the structure of this utility model;

[0020] Figure 6 yes Figure 5 Sectional view at point DD;

[0021] Figure 7 yes Figure 6 Enlarged view at point E in the middle;

[0022] Figure 8 This is a top view of the main body of the connector in this utility model;

[0023] Figure 9 This is a top view of the wear-resistant bushing in this utility model;

[0024] Figure 10 This is a top view of the U-shaped plate in this utility model;

[0025] Figure 11 This is a top view of the fixing block in this utility model;

[0026] Figure 12 This is a side view of the second hollow plate in this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Connector body; 2. Wear-resistant bushing; 3. U-shaped plate; 4. First spring; 5. Fixing block; 6. Threaded hole; 7. Bolt; 8. First through hole; 9. Guide sleeve; 10. Fixing groove; 11. Fixing component; 12. Lubrication groove; 13. First grease inlet hole; 14. Second grease inlet hole; 15. First hollow plate; 16. Grease reservoir; 17. Second hollow plate; 18. Second through hole; 19. Second spring; 20. Grease pusher rubber ring; 21. Grease inlet pipe; 22. Sealing plug; 23. Vent groove; 24. First ring; 25. Third spring; 26. Sealing ball; 27. Second ring. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] like Figures 1 to 11 As shown, a wear-resistant automotive door connector includes a connector body 1, a wear-resistant bushing 2 fitted to the inner wall of the connector body 1, a U-shaped plate 3 fixedly connected to the upper surface of the connector body 1, a first spring 4 fixedly connected to the inner wall of the U-shaped plate 3, a fixing block 5 fixedly connected to the bottom of the first spring 4, a threaded hole 6 opened on the upper surface of the U-shaped plate 3, a bolt 7 threadedly connected to the inner wall of the threaded hole 6, the bottom end of the bolt 7 fitting against the upper surface of the fixing block 5, a first through hole 8 opened on the upper surface of the connector body 1, a guide sleeve 9 fixedly connected to the inner wall of the first through hole 8, the inner wall of the guide sleeve 9 slidingly connected to the surface of the fixing block 5, a fixing groove 10 opened on the upper surface of the wear-resistant bushing 2, the inner wall of the fixing groove 10 fitting against the surface of the fixing block 5, and a fixing member 11 fixedly connected to the surface of the connector body 1.

[0032] Ventilation grooves 23 are provided on both the left and right sides of the fixing block 5.

[0033] It should be noted that by setting a wear-resistant bushing 2 made of polytetrafluoroethylene composite material inside the connector body 1, the wear resistance of the internal contact surface of the connector can be effectively improved, thereby reducing wear caused by long-term friction, extending the service life of the connector, and reducing the frequency of maintenance and replacement.

[0034] The tension of the first spring 4 on the fixing block 5 causes the fixing block 5 to automatically separate from the fixing groove 10 after the bolt 7 is unscrewed from the threaded hole 6. When the bolt 7 is screwed into the threaded hole 6, the fixing block 5 can be pushed into the fixing groove 10 by the bolt 7, making it impossible for the fixing block 5 to separate from the fixing groove 10. At this time, the wear-resistant bushing 2 can be fixed in the connector body 1 by the cooperation of the fixing block 5 and the fixing groove 10. The guide sleeve 9 guides the movement trajectory of the fixing block 5. When the fixing block 5 slides in the guide sleeve 9, the air inside and outside the guide sleeve 9 can circulate through the vent groove 23. When the fixing block 5 separates from the fixing groove 10, the wear-resistant bushing 2 can be directly removed from the connector body 1.

[0035] like Figures 1 to 12 As shown, the inner wall of the wear-resistant bushing 2 is provided with a lubrication groove 12, the inside of the wear-resistant bushing 2 is provided with a first grease inlet hole 13, the surface of the connector body 1 is provided with a second grease inlet hole 14, the left and right sides of the U-shaped plate 3 and the surface of the connector body 1 are all fixedly connected with a first hollow plate 15, the side of the first hollow plate 15 is fixedly connected with a grease reservoir 16, the side of the grease reservoir 16 and the surface of the connector body 1 are all fixedly connected with a second hollow plate 17, the inside of the second hollow plate 17 is provided with a second through hole 18, the inner wall of the second through hole 18 is fixedly connected with a second spring 19, the end of the second spring 19 is fixedly connected with a grease-pushing rubber ring 20, the surface of the grease-pushing rubber ring 20 is slidably connected to the inner wall of the grease reservoir 16, the inner wall of the grease-pushing rubber ring 20 is slidably connected to the surface of the connector body 1, the upper surface of the grease-pushing rubber ring 20 is fixedly connected with a grease inlet pipe 21, and the inner wall of the grease inlet pipe 21 is threadedly connected with a sealing plug 22.

[0036] The grease inlet pipe 21 and the second grease inlet hole 14 are both located between the grease pusher rubber ring 20 and the first hollow plate 15, and the first grease inlet hole 13 is located between the lubrication groove 12 and the second grease inlet hole 14.

[0037] A first ring 24 is fixedly connected to the inner wall of the grease inlet tube 21. A third spring 25 is fixedly connected to the inner wall of the first ring 24. A sealing ball 26 is fixedly connected to the bottom of the third spring 25. A second ring 27 is fixedly connected to the inner wall of the grease inlet tube 21. The bottom of the second ring 27 is in contact with the upper surface of the sealing ball 26. The diameter of the sealing ball 26 is smaller than the inner diameter of the grease inlet tube 21, and the diameter of the sealing ball 26 is larger than the inner diameter of the second ring 27. The pulling force of the third spring 25 on the sealing ball 26 is greater than the weight of the sealing ball 26.

[0038] It should be noted that, through the cooperation of the first hollow plate 15, the grease reservoir 16, the second hollow plate 17, the grease inlet pipe 21, and the sealing plug 22, a certain amount of grease can be stored on the outside of the main body of the connector. At the same time, through the pushing force of the second spring 19 on the grease pushing rubber ring 20, the grease in the grease reservoir 16 can automatically enter the lubrication groove 12 through the first grease inlet hole 13 and the second grease inlet hole 14. At this time, the grease in the lubrication groove 12 can effectively reduce the direct friction between the wear-resistant bushing 2 and the door connecting shaft. Furthermore, since the grease reservoir 16 can store grease, the contact surface between the wear-resistant bushing 2 and the door connecting shaft can be lubricated for a long time, thereby effectively improving the service life of the wear-resistant bushing 2.

[0039] Meanwhile, through the cooperation of the first ring 24, the third spring 25, the sealing ball 26, and the second ring 27, the sealing plug 22 is separated from the grease inlet pipe 21, and the remaining grease in the grease reservoir 16 will not be discharged through the grease inlet pipe 21. When the user injects grease into the grease reservoir 16 through the grease inlet pipe 21, the grease pushes the sealing ball 26, which can separate the sealing ball 26 from the second ring 27, and allow the grease to enter the grease reservoir 16 through the grease inlet pipe 21.

[0040] The working principle of this utility model is as follows: First, the connector is fixed to the car door by the fastener 11. Then, the car door connecting shaft is inserted into the wear-resistant bushing 2. At this time, the wear-resistant bushing 2, which is made of polytetrafluoroethylene composite material, can effectively improve the wear resistance of the internal contact surface of the connector. At the same time, the grease in the grease reservoir 16 can automatically enter the lubrication groove 12 through the first grease inlet hole 13 and the second grease inlet hole 14 by the pushing force of the second spring 19 on the grease-pushing rubber ring 20. At this time, the grease in the lubrication groove 12 can effectively reduce the direct friction between the wear-resistant bushing 2 and the car door connecting shaft.

[0041] When grease needs to be added to the grease reservoir 16, first unscrew the sealing plug 22 from the grease inlet pipe 21. Through the cooperation of the first ring 24, the third spring 25, the sealing ball 26, and the second ring 27, the sealing plug 22 is separated from the grease inlet pipe 21. The remaining grease in the grease reservoir 16 will not be discharged through the grease inlet pipe 21. Then, the grease is injected into the grease reservoir 16 through the grease inlet pipe 21. When injecting the grease, the grease pushes the sealing ball 26, which separates the sealing ball 26 from the second ring 27, allowing the grease to enter the grease reservoir 16 through the grease inlet pipe 21.

[0042] When the amount of grease in the grease reservoir 16 increases, the distance between the grease pusher rubber ring 20 and the first hollow plate 15 increases through the grease, and the second spring 19 is in a compressed state. When the amount of grease in the grease reservoir 16 reaches the specified amount, the injection of grease is stopped, and the sealing plug 22 is screwed onto the grease inlet pipe 21.

[0043] When the wear-resistant bushing 2 needs to be replaced, first remove the door connecting shaft from the wear-resistant bushing 2, and then unscrew the bolt 7 from the threaded cylinder. At this time, the fixing block 5 can be automatically separated from the fixing groove 10 by the pulling force of the first spring 4 on the fixing block 5. After the fixing block 5 is separated from the fixing groove 10, the wear-resistant bushing 2 can be directly removed from the connector body 1.

[0044] When it is necessary to install the wear-resistant bushing 2, first insert the wear-resistant bushing 2 into the connector body 1, and align the fixing groove 10 with the fixing block 5. Then, screw the bolt 7 into the threaded hole 6 and press the bolt 7 against the fixing block 5. At this time, the fixing block 5 can be pushed into the fixing groove 10 by the bolt 7, and the fixing block 5 cannot be separated from the fixing groove 10. Then, through the cooperation of the fixing block 5 and the fixing groove 10, the wear-resistant bushing 2 can be fixed in the connector body 1.

[0045] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A wear-resistant automotive door connector, characterized in that: The connector includes a connector body (1), the inner wall of which is fitted with a wear-resistant bushing (2). A U-shaped plate (3) is fixedly connected to the upper surface of the connector body (1). A first spring (4) is fixedly connected to the inner wall of the U-shaped plate (3). A fixing block (5) is fixedly connected to the bottom of the first spring (4). A threaded hole (6) is opened on the upper surface of the U-shaped plate (3). A bolt (7) is threadedly connected to the inner wall of the threaded hole (6). The bottom end is attached to the upper surface of the fixing block (5). The upper surface of the connector body (1) is provided with a first through hole (8). The inner wall of the first through hole (8) is fixedly connected with a guide sleeve (9). The inner wall of the guide sleeve (9) is slidably connected to the surface of the fixing block (5). The upper surface of the wear-resistant bushing (2) is provided with a fixing groove (10). The inner wall of the fixing groove (10) is attached to the surface of the fixing block (5). The surface of the connector body (1) is fixedly connected with a fixing member (11).

2. The wear-resistant automotive door connector according to claim 1, characterized in that: The wear-resistant bushing (2) has a lubrication groove (12) on its inner wall, a first grease inlet hole (13) inside the wear-resistant bushing (2), a second grease inlet hole (14) on the surface of the connector body (1), a first hollow plate (15) fixedly connected to both sides of the U-shaped plate (3) and the surface of the connector body (1), a grease reservoir (16) fixedly connected to the side of the first hollow plate (15), and a second hollow plate (17) fixedly connected to the side of the grease reservoir (16) and the surface of the connector body (1). The plate (17) has a second through hole (18) inside. A second spring (19) is fixedly connected to the inner wall of the second through hole (18). A grease-pushing rubber ring (20) is fixedly connected to the end of the second spring (19). The surface of the grease-pushing rubber ring (20) is slidably connected to the inner wall of the grease reservoir (16). The inner wall of the grease-pushing rubber ring (20) is slidably connected to the surface of the connector body (1). A grease inlet pipe (21) is fixedly connected to the upper surface of the grease-pushing rubber ring (20). A sealing plug (22) is threadedly connected to the inner wall of the grease inlet pipe (21).

3. The wear-resistant automotive door connector according to claim 2, characterized in that: The grease inlet pipe (21) and the second grease inlet hole (14) are both located between the grease pushing rubber ring (20) and the first hollow plate (15), and the first grease inlet hole (13) is located between the lubrication groove (12) and the second grease inlet hole (14).

4. The wear-resistant automotive door connector according to claim 1, characterized in that: Ventilation grooves (23) are provided on both the left and right sides of the fixing block (5).

5. A wear-resistant automotive door connector according to claim 2, characterized in that: The inner wall of the grease inlet tube (21) is fixedly connected to a first ring (24), the inner wall of the first ring (24) is fixedly connected to a third spring (25), the bottom of the third spring (25) is fixedly connected to a sealing ball (26), the inner wall of the grease inlet tube (21) is fixedly connected to a second ring (27), and the bottom of the second ring (27) is in contact with the upper surface of the sealing ball (26).

6. The wear-resistant automotive door connector according to claim 5, characterized in that: The diameter of the sealing ball (26) is smaller than the inner diameter of the grease inlet tube (21), the diameter of the sealing ball (26) is larger than the inner diameter of the second ring (27), and the pulling force of the third spring (25) on the sealing ball (26) is greater than the weight of the sealing ball (26).

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