Connecting rod assembly for automotive suspension

Abstract

The utility model belongs to the technical field of automobile manufacturing, and particularly relates to a connecting rod assembly for an automobile suspension. A sealing plate is arranged on the inner side wall of the sealing kit; bushings are symmetrically arranged at the end parts of the sealing plate; a spherical hinge is arranged on the side wall of the bushing; the reliability of the structural strength is improved through integrated manufacturing of the connecting rod and the ball head, meanwhile, the connecting rod is subjected to multi-section adjustable design through the enhanced structural strength, the weight of the connecting rod can be adjusted according to different load-carrying use conditions of a vehicle, the adjustable connecting rod can adjust the suspension to be in a softer state when the vehicle is in an idle load state, and the suspension is more flexible. Tiny bumpiness of the road surface is effectively filtered, the riding experience of passengers in the vehicle is greatly improved, the connecting rod can be adjusted to provide enough supporting force when the vehicle is fully loaded, so that the vehicle is kept balanced in the running process, the dangerous conditions such as side tipping and shaking caused by insufficient supporting are prevented, the control performance of the vehicle is improved, a driver can more accurately control the vehicle, and the driving safety is improved. And the working states of lifting and hanging under various complex road conditions are handled.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, specifically a connecting rod assembly for automobile suspension. Background Technology

[0002] When a vehicle brakes, the front of the car dips, and the center of gravity shifts forward; when accelerating, the rear of the car dips, and the center of gravity shifts backward. The linkage assembly works in conjunction with the compression and extension of the suspension system to balance the changes in the vehicle's posture, preventing excessive forward or backward tilting and maintaining vehicle stability. This not only helps improve ride comfort but also allows the vehicle's braking and acceleration performance to be better utilized, ensuring the vehicle's safety during dynamic driving.

[0003] Currently, after long-term observation and use, it has been found that the traditional integrated linkage design cannot adjust the suspension linkage assembly according to different needs. For the same vehicle, the optimal state of the suspension is different when unloaded and fully loaded. The non-adjustable linkage cannot adapt to this change, which may result in the suspension being too stiff when unloaded, causing an uncomfortable ride, while the suspension support may be insufficient when fully loaded, affecting the stability and safety of the vehicle. Therefore, a linkage assembly for automotive suspension is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a linkage assembly for automobile suspension.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A connecting rod assembly for an automotive suspension, comprising a sealing kit; a sealing plate is provided on the inner sidewall of the sealing kit; bushings are symmetrically provided at the ends of the sealing plate; a ball joint is provided on the sidewall of the bushing; a first main connecting rod is fitted and connected to the sidewall of the sealing kit; a secondary connecting rod is slidably connected to the inner sidewall of the first main connecting rod; a second main connecting rod is provided at the end of the secondary connecting rod; the secondary connecting rod and the second main connecting rod are slidably connected; a ball head is provided at the end of the second main connecting rod; multiple sets of threaded holes are provided on the sidewalls of the first main connecting rod, the secondary connecting rod, and the second main connecting rod; bolt assemblies are provided on the sidewalls of the threaded holes; the threaded holes and the bolt assemblies are threadedly connected; a fastening nut is rotatably connected to the end of the ball joint; a bolt is threadedly connected to the surface of the fastening nut.

[0006] Preferably, the inner sidewalls of the first and second main connecting rods are provided with large cross-sections; the inner sidewalls of the auxiliary connecting rods are provided with small cross-sections; and the sidewalls of the large and small cross-sections are provided with rounded corners.

[0007] Preferably, the large cross-section sidewall is provided with a placement groove; an air spring is provided on the sidewall of the placement groove.

[0008] Preferably, the sealing kit and the sealing plate are riveted together by rivets; the side wall of the sealing plate is provided with a guide groove.

[0009] Preferably, a dust cover is fixed to the side wall of the sealing kit.

[0010] Preferably, the sealing kit port is provided with lubricating grease.

[0011] Preferably, the fastening nut is fitted with a washer.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a connecting rod assembly for automotive suspension. Through the use of threaded holes and bolts, and the integrated manufacturing of the connecting rod and ball joint, the reliability of the structural strength is enhanced. Simultaneously, the enhanced structural strength is achieved through a multi-stage adjustable design of the connecting rod, allowing for weight adjustment based on different vehicle load conditions. When unloaded, the adjustable connecting rod can adjust the suspension to a softer state, effectively filtering out minor road bumps and significantly improving the passenger experience. When fully loaded, the adjustable connecting rod provides sufficient support, maintaining vehicle balance during driving and preventing dangerous situations such as roll and swaying due to insufficient support. This improves vehicle handling performance, allowing the driver to control the vehicle more precisely and cope with various complex road conditions, thus enhancing the suspension's performance.

[0014] This utility model provides a connecting rod assembly for automotive suspension. By setting large and small cross-sections, the material is distributed according to the stress conditions of different parts of the connecting rod. The cross-section is increased in areas of high stress to improve strength and stiffness, while the cross-section is reduced in areas of low stress. Under the premise of ensuring overall performance, material waste is avoided. The variable cross-section design makes stress changes more gradual and reduces local stress concentration that could lead to premature fatigue failure. It is suitable for automotive suspension connecting rods that bear alternating loads for a long time. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the lubricating grease in this utility model;

[0019] Figure 3 This is a perspective view of the air spring in this utility model;

[0020] Figure 4 This is a perspective view of the threaded hole in this utility model;

[0021] Figure 5 This is a perspective view of the bolt assembly in this utility model.

[0022] Legend:

[0023] 1. Sealing kit; 11. Sealing plate; 12. Bushing; 13. Ball joint; 14. First main connecting rod; 15. Secondary connecting rod; 16. Second main connecting rod; 17. Ball head; 18. Threaded hole; 19. Bolt assembly; 101. Fastening nut; 102. Bolt; 2. Large cross section; 21. Small cross section; 22. Rounded corner edge; 3. Placement slot; 31. Air spring; 4. Rivet; 41. Guide channel; 5. Dust cover; 6. Lubricating grease; 7. Washer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Specific implementation examples are given below.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5This utility model provides a connecting rod assembly for an automotive suspension, including a sealing kit 1; a sealing plate 11 is provided on the inner sidewall of the sealing kit 1; bushings 12 are symmetrically provided at the ends of the sealing plate 11; ball joints 13 are provided on the sidewalls of the bushings 12; a first main connecting rod 14 is fitted and connected to the sidewall of the sealing kit 1; a secondary connecting rod 15 is slidably connected to the inner sidewall of the first main connecting rod 14; a second main connecting rod 16 is provided at the end of the secondary connecting rod 15; the secondary connecting rod 15 and the second main connecting rod 16 are slidably connected; a ball joint is provided at the end of the second main connecting rod 16. Head 17; the first main connecting rod 14, the secondary connecting rod 15, and the second main connecting rod 16 all have multiple sets of threaded holes 18 on their side walls; bolt assemblies 19 are provided on the side walls of the threaded holes 18; the threaded holes 18 and the bolt assemblies 19 are threadedly connected; a fastening nut 101 is rotatably connected to the end of the ball joint 13; a bolt 102 is threadedly connected to the surface of the fastening nut 101; during operation, firstly, by designing and manufacturing the second main connecting rod 16 and the ball joint 17 as an integrated unit, the traditional structure of manufacturing the connecting rod and the ball joint assembly separately and then welding them into a complete assembly is reduced. In cases where structural strength and reliability are not high, the first main link 14 is bolted to the secondary link 15 and the secondary link 15 is bolted to the second main link 16 using bolt assembly 19. This allows the link assembly to adapt to different suspension tuning requirements under different operating conditions. Furthermore, the multiple sets of threaded holes 18 allow the bolt assembly 19 to be used to assemble and tighten the link at different locations, improving versatility and adaptability. This design enhances structural strength and reliability through the integrated manufacturing of the link and ball joint. The enhanced structural strength and multi-stage adjustable design of the link allow for weight adjustment based on different vehicle load conditions. When unloaded, the adjustable link can adjust the suspension to a softer state, effectively filtering out minor road bumps and significantly improving the passenger experience. When fully loaded, the adjustable link provides sufficient support to maintain vehicle balance during driving, preventing dangerous situations such as roll and swaying due to insufficient support, improving vehicle handling performance, and enabling the driver to control the vehicle more precisely to cope with various complex road conditions, thus improving the suspension's performance.

[0027] Furthermore, such as Figure 3 , Figure 4 , Figure 5As shown, the inner walls of the first main connecting rod 14 and the second main connecting rod 16 are provided with a large cross-section 2; the inner wall of the auxiliary connecting rod 15 is provided with a small cross-section 21; the side walls of the large cross-section 2 and the small cross-section 21 are provided with rounded corner edges 22. During operation, since the forces at both ends of the connection are greater and the forces in the middle are smaller, by providing large cross-sections 2 at both ends of the connecting rod and small cross-sections 21 in the middle, the cross-sectional dimensions are increased in the parts with greater forces to improve strength and rigidity; the cross-sectional dimensions are appropriately reduced in the parts with less forces to reduce weight. This design can ensure the performance of the connecting rod while reducing material costs and the weight of the whole vehicle. This design allocates materials according to the stress conditions of different parts of the connecting rod. The cross-section is increased in the parts with greater forces to improve strength and rigidity, and the cross-section is reduced in the parts with less forces. Under the premise of ensuring overall performance, material waste is avoided. The variable cross-section design makes stress changes more gradual and reduces local stress concentration that leads to premature fatigue failure. It is suitable for automotive suspension connecting rods that bear alternating loads for a long time.

[0028] Furthermore, such as Figure 3 As shown, the large cross-section 2 has a placement groove 3 on its side wall; the placement groove 3 has an air spring 31 on its side wall; during operation, when the vehicle is driving on an uneven road surface, the air spring 31 is used to connect the components at the large cross-section inside the linkage assembly, which can achieve a flexible connection. The air spring 31 utilizes the compressibility of air to more effectively absorb the vibration and impact generated by road bumps. This design, through the air spring, can significantly reduce the vibration transmitted to the vehicle, making the driving experience smoother and more comfortable, especially suitable for long-distance driving or scenarios with poor road conditions.

[0029] Furthermore, such as Figure 2 As shown, the sealing kit 1 and the sealing plate 11 are riveted together by rivets 4; the side wall of the sealing plate 11 is provided with a guide groove 41; during operation, the riveting connection between the sealing kit 1 and the sealing plate 11 increases the ejection force of the ball pin, and the guide groove 41 on the sealing plate 11 can guide the airflow to flow more smoothly through the connecting rod assembly, reducing aerodynamic noise. This design improves the ejection force of the ball pin by riveting the sealing kit to the sealing plate and providing a guide groove on the sealing plate, thereby enhancing the safety of the suspension connecting rod assembly application and improving the vehicle's driving stability and fuel economy.

[0030] Furthermore, such as Figure 2 As shown, a dust cover 5 is fixed to the side wall of the sealing kit 1; during operation, the dust cover 5 can reduce the intrusion of external pollutants into key parts such as the ball joint. This design enhances the protection of the internal structure by reducing the intrusion of external pollutants.

[0031] Furthermore, such as Figure 2As shown, a lubricating grease 6 is provided at the port of the sealing kit 1. During operation, the lubricating grease 6 can form a continuous oil film on the metal surface, separating the contact surfaces. This design can reduce the wear of parts, extend the service life of the linkage assembly, and maintain the stable performance of the suspension system through the provided lubricating grease 6.

[0032] Furthermore, such as Figure 2 As shown, the fastening nut 101 is fitted with a washer 7; during operation, the washer 7 can enhance the friction between the fastening nut 101 and the bolt 102. This design uses the washer to evenly transfer the load, prevent the nut from loosening, and protect the surface of the connected parts.

[0033] Working principle: First, the second main connecting rod 16 and the ball joint 17 are designed and manufactured as a single unit, reducing the structural strength and reliability issues caused by the separate manufacturing and welding of connecting rods and ball joint assemblies in traditional structures. Simultaneously, the bolted connection between the first main connecting rod 14 and the secondary connecting rod 15, and between the secondary connecting rod 15 and the second main connecting rod 16 using bolt assemblies 19, allows the connecting rod assembly to adapt to different suspension adjustments under varying operating conditions. Furthermore, the multiple sets of threaded holes 18 allow the bolt assemblies 19 to assemble and tighten the connecting rods at different locations, improving versatility and adaptability. Since the forces at both ends of the connection are greater than those in the middle, large cross-sections 2 at the ends and small cross-sections 21 in the middle are used to increase the cross-sectional dimensions in areas of higher stress, thereby improving strength and rigidity; while reducing the forces in areas of lower stress... By appropriately reducing the cross-sectional size and weight, the performance of the connecting rod can be guaranteed while reducing material costs and overall vehicle weight. When the vehicle is traveling on uneven roads, a flexible connection can be achieved by using an air spring 31 at a large cross-section inside the connecting rod assembly. The air spring 31 utilizes the compressibility of air to more effectively absorb vibrations and impacts caused by road bumps. The riveting connection between the sealing kit 1 and the sealing plate 11 increases the ejection force of the ball joint. At the same time, the airflow guide groove 41 opened on the sealing plate 11 can guide the airflow to flow more smoothly through the connecting rod assembly, reducing aerodynamic noise. The dust cover 5 can reduce the intrusion of external pollutants into key parts such as the ball joint. The lubricating grease 6 can form a continuous oil film on the metal surface to separate the contact surfaces. The washer 7 can enhance the friction between the fastening nut 101 and the bolt 102.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A linkage assembly for automotive suspension, comprising a sealing kit (1); characterized in that: The sealing kit (1) has a sealing plate (11) on its inner sidewall; bushings (12) are symmetrically arranged at the ends of the sealing plate (11); ball joints (13) are arranged on the sidewalls of the bushings (12); a first main connecting rod (14) is fitted and connected to the sidewalls of the sealing kit (1); a secondary connecting rod (15) is slidably connected to the inner sidewall of the first main connecting rod (14); a second main connecting rod (16) is arranged at the end of the secondary connecting rod (15); the secondary connecting rod (15) and the second main connecting rod (16) are slidably connected; The second main connecting rod (16) is provided with a ball head (17) at its end; the first main connecting rod (14), the secondary connecting rod (15) and the second main connecting rod (16) are provided with multiple sets of threaded holes (18) on their side walls; the side walls of the threaded holes (18) are provided with bolt assemblies (19); the threaded holes (18) and the bolt assemblies (19) are threadedly connected; the end of the ball joint (13) is rotatably connected with a fastening nut (101); the surface of the fastening nut (101) is threadedly connected with a bolt (102).

2. The linkage assembly for automotive suspension as described in claim 1, characterized in that: The inner walls of the first main connecting rod (14) and the second main connecting rod (16) are provided with a large cross section (2); the inner wall of the auxiliary connecting rod (15) is provided with a small cross section (21); the side walls of the large cross section (2) and the small cross section (21) are provided with rounded corner edges (22).

3. The linkage assembly for automotive suspension as described in claim 2, characterized in that: The large cross section (2) has a placement groove (3) on its side wall; an air spring (31) is provided on the side wall of the placement groove (3).

4. A linkage assembly for automotive suspension as described in claim 1, characterized in that: The sealing kit (1) and the sealing plate (11) are riveted together by rivets (4); the side wall of the sealing plate (11) is provided with a guide groove (41).

5. A linkage assembly for automotive suspension as described in claim 1, characterized in that: The sealing kit (1) has a dust cover (5) fixed to its side wall.

6. A linkage assembly for automotive suspension as described in claim 1, characterized in that: Lubricating grease (6) is provided at the port of the sealing kit (1).

7. A linkage assembly for automotive suspension as described in claim 1, characterized in that: The fastening nut (101) is fitted with a washer (7).

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