Automobile chassis vertical pull rod with bidirectional dynamic damping adjustment function

Abstract

The utility model discloses an automobile chassis vertical pull rod with bidirectional dynamic damping adjustment, which is characterized by comprising a joint ball head, a connecting rod, a bidirectional valve plate type damping piston, an isolation piston, a guide sealing element and a cylinder body, the joint ball head is connected with one end of the connecting rod, the other end of the connecting rod is connected with the two-way valve plate type damping piston, the two-way valve plate type damping piston is installed in the cylinder body, the guide sealing piece is installed in the cylinder body, the connecting rod penetrates through the guide sealing piece, and the two-way valve plate type damping piston is connected with the two-way valve plate type damping piston. The isolation piston is installed in the cylinder body, and a cavity is formed between the isolation piston and the two-way valve plate type damping piston. Damping force can be adjusted through the internal damping structure according to vehicle driving conditions and road conditions; micro-vibration in the running process of a vehicle can be effectively reduced, the torsion resistance of the frame is enhanced, and the vehicle runs more stably.

Description

Technical Field

[0001] This utility model relates to the field of vehicle engineering technology, and in particular to a bidirectional dynamic damping adjustable vertical tie rod for automobile chassis. Background Technology

[0002] Chassis tie rods play a crucial role in automotive chassis components. Their core function is to effectively suppress excessive lateral tilting of the vehicle body during steering maneuvers, striving to maintain vehicle stability. Specifically, when a vehicle turns, if the side suspensions move asynchronously, the outer suspension applies pressure to the tie rod, causing it to deform. At this time, the elastic force of the rod resists the upward tendency of the wheels, thus helping the vehicle maintain stability and playing a key role in lateral stabilization. In addition, chassis tie rods significantly improve the overall rigidity of the vehicle body, effectively resisting body deformation and wheel misalignment. They are typically installed at the front and rear axles and the front and rear connections to the chassis frame. Current technology offers limited functionality and poor adaptability for chassis tie rods. Traditional stabilizer bar tie rods only provide mechanical support, lacking dynamic damping adjustment capabilities and unable to adapt to complex road conditions. Furthermore, their fixed structure makes it difficult to meet the personalized needs of different vehicle models, resulting in low modification flexibility.

[0003] Therefore, it is necessary to provide a bidirectional dynamic damping adjustable automotive chassis vertical tie rod to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the aforementioned existing problems, this utility model is proposed.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bidirectional dynamic damping adjustable vertical tie rod for a car chassis, characterized in that it includes a joint ball joint, a connecting rod, a bidirectional valve plate damping piston, an isolation piston, a guide seal, and a cylinder; the joint ball joint is connected to one end of the connecting rod, the other end of the connecting rod is connected to the bidirectional valve plate damping piston, the bidirectional valve plate damping piston is installed inside the cylinder, a guide seal is installed on the side of the bidirectional valve plate damping piston connected to the connecting rod, the guide seal is installed inside the cylinder, the isolation piston is installed inside the cylinder, and a cavity is provided between the isolation piston and the bidirectional valve plate damping piston.

[0007] As a preferred embodiment of the bidirectional dynamic damping adjustment automobile chassis vertical tie rod described in this utility model, the cylinder body has a cavity structure, and the cylinder body is provided with an oil chamber and an air chamber.

[0008] As a preferred embodiment of the bidirectional dynamic damping adjustment automobile chassis vertical tie rod described in this utility model, the isolation piston is installed between the oil chamber and the air chamber for isolation.

[0009] In a preferred embodiment of the bidirectional dynamic damping adjustment of the automotive chassis vertical tie rod described in this utility model, the isolation piston moves inside the cylinder.

[0010] In a preferred embodiment of the bidirectional dynamic damping adjustment automotive chassis vertical tie rod described in this utility model, the joint ball joints are configured as a pair.

[0011] As a preferred embodiment of the bidirectional dynamic damping adjustment automobile chassis vertical tie rod of this utility model, the bidirectional valve plate type damping piston includes a piston assembly, a sealing ring and a piston guide. The piston assembly includes a piston and a valve plate. The valve plate is installed on one side of the piston. The piston assemblies are configured as a pair. The sealing ring is installed between the piston assemblies. The piston guide is installed next to the piston assembly.

[0012] As a preferred embodiment of the bidirectional dynamic damping adjustment of the automobile chassis vertical tie rod described in this utility model, the valve plate is provided with several slots.

[0013] As a preferred embodiment of the bidirectional dynamic damping adjustment of the automotive chassis vertical tie rod described in this utility model, the oil chamber is filled with damping oil.

[0014] As a preferred embodiment of the bidirectional dynamic damping adjustment of the automotive chassis vertical tie rod described in this utility model, the air chamber is filled with nitrogen.

[0015] In a preferred embodiment of the bidirectional dynamic damping adjustment of the automotive chassis vertical tie rod described in this utility model, the bidirectional valve plate type damping piston slides within the cylinder body.

[0016] The beneficial effects of this utility model are as follows: This utility model can adjust the damping force through the internal damping structure according to the vehicle's driving conditions and road conditions; it can effectively reduce micro-vibrations during vehicle driving, strengthen the frame's anti-torsional performance, and make the vehicle drive more smoothly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 A schematic diagram of the overall structure of the bidirectional dynamic damping adjustment automobile chassis vertical tie rod according to an embodiment of this utility model;

[0019] Figure 2 A schematic diagram of the bidirectional valve plate damping piston of the vertical tie rod of the automobile chassis for bidirectional dynamic damping adjustment according to an embodiment of this utility model;

[0020] Figure 3 A schematic diagram of the valve plate state of the vertical tie rod of the automobile chassis for bidirectional dynamic damping adjustment, provided in one embodiment of this utility model.

[0021] Reference numerals: 101, joint ball joint; 102, connecting rod; 103, two-way valve plate damping piston; 104, isolation piston; 105, guide seal; 100, cylinder body; 106, oil chamber; 107, air chamber; 108, piston assembly; 109, sealing ring; 110, piston guide; 111, piston; 112, valve plate; 113, groove; Detailed Implementation

[0022] 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. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0024] 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.

[0025] Example 1

[0026] Reference Figures 1-3The first embodiment of this utility model discloses a bidirectional dynamic damping adjustable automotive chassis vertical tie rod, characterized in that it includes a joint ball joint 101, a connecting rod 102, a bidirectional valve plate damping piston 103, an isolation piston 104, a guide seal 105, and a cylinder 100; the joint ball joint 101 is connected to one end of the connecting rod 102, and the other end of the connecting rod 102 is connected to the bidirectional valve plate damping piston 103; the bidirectional valve plate damping piston 103 is installed inside the cylinder 100; the guide seal 105 is installed inside the cylinder 100; the connecting rod 102 passes through the guide seal 105; the isolation piston 104 is installed inside the cylinder 100; and a cavity is provided between the isolation piston 104 and the bidirectional valve plate damping piston 103. Specifically, the cylinder body 100 has a hollow internal structure. A guide seal 105 is installed at one end of the cylinder body 100, and the guide seal 105 has an opening at its center. The connecting rod 102 passes through the guide seal 105 and connects to the bidirectional valve plate damping piston 103 inside the cylinder body 100. The opening in the guide seal 105 is adapted to the diameter of the connecting rod 102, which not only provides a sealing function but also provides a guiding function for the connecting rod 102. The bidirectional valve plate damping piston 103 slides with the movement of the joint ball joint. The cylinder body 100 has a hollow internal structure, and an oil chamber 106 and an air chamber 107 are provided inside the cylinder body 100. The cavity formed between the isolation piston 104 and the bidirectional valve plate damping piston 103 is the oil chamber 106, and the cavity formed between the other side of the isolation piston 104 and the tail of the cylinder body 100 is the air chamber 107. The oil chamber 106 is filled with damping oil specifically for shock absorption, with an operating temperature range of -40℃ to +120℃. The air chamber 107 is filled with high-pressure nitrogen, which provides support, buffering, and compensation. An isolation piston 104 is installed between the oil chamber 106 and the air chamber 107 for isolation. The isolation piston 104 moves within the cylinder body 100. The oil chamber 106 and the air chamber 107 are isolated by a movable isolation piston 104. Additionally, the bidirectional valve-type damping piston 103 includes a piston assembly 108, a sealing ring 109, and a piston guide 110. The piston assembly 108 includes a piston 111 and a valve plate 112. The valve plate 112 is installed on one side of the piston 111. The piston assemblies 108 are configured as a pair, with the sealing ring 109 installed between them. The piston guide 110 is installed beside each piston assembly 108. The piston guide 110 can provide guidance for the bidirectional valve plate damping piston 103, which can make the bidirectional valve plate damping piston 103 run more smoothly.

[0027] When the bidirectional valve plate damping piston 103 is in its extension stroke, the oil generates damping force through the main throttling orifice; when the bidirectional valve plate damping piston 103 is in its compression stroke, the oil works in conjunction with the deformation of the valve plate 112 through the secondary throttling orifice. To accommodate different damping forces, several slots 113 are provided on the valve plate 112. At the same time, the bidirectional valve plate damping piston 103 uses multiple layers of valve plates and stacked open valve plates (adjusted according to requirements). The slotted dimensions of the extension slotted valve plate and the compression slotted valve plate are different to compensate for the difference in extension / compression damping forces. When the damping requirement is low at low speeds, it is released through the open valve plate; when the impact is large and the damping requirement is high, it is met through the multiple layers of valve plates. When high-frequency vibrations occur, the high-pressure nitrogen gas in the air chamber 107 compresses and absorbs the impact energy, providing rigid support at the limit stroke to prevent metal-to-metal collisions. Additionally, the bidirectional valve-type damping system incorporates multi-layered valve-plate stacked pistons, with main and secondary throttling slotted valve plates, achieving differentiated control of tensile / compression damping forces (difference ≤15%), adapting to bidirectional dynamic adjustment under complex operating conditions. This invention can adjust the damping force through its internal damping structure according to vehicle driving conditions and road conditions. For example, when cornering at high speeds or encountering bumpy roads, it can increase the damping force, suppressing body roll and vibration, and improving handling stability and ride comfort. It can effectively reduce micro-vibrations during vehicle operation, strengthen the frame's torsional resistance, and make the vehicle ride smoother. It is particularly effective in improving the overall performance of high-performance sports cars and mid-to-high-end models that emphasize comfort.

[0028] In summary, the dynamic damping adjustment varies under different road conditions. Under normal conditions, the main throttle orifice provides basic damping force; under severe conditions, valve plate deformation triggers an increase in damping force; and improved handling stability is achieved by increasing the speed of passing the moose test and reducing the body roll angle during high-speed cornering.

[0029] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0030] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to the implementation of the present invention) may be omitted.

[0031] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A bidirectional dynamic damping adjustable vertical tie rod for automotive chassis, characterized in that, The device includes a ball joint (101), a connecting rod (102), a bidirectional valve plate damping piston (103), an isolation piston (104), a guide seal (105), and a cylinder (100). The ball joint (101) is connected to one end of the connecting rod (102), and the other end of the connecting rod (102) is connected to the bidirectional valve plate damping piston (103). The bidirectional valve plate damping piston (103) is installed inside the cylinder (100), the guide seal (105) is installed inside the cylinder (100), the connecting rod (102) passes through the guide seal (105), and the isolation piston (104) is installed inside the cylinder (100). A cavity is provided between the isolation piston (104) and the bidirectional valve plate damping piston (103).

2. The bidirectional dynamically damped adjustable automotive chassis strut rod of claim 1, wherein, The cylinder body (100) has a cavity structure, and the cylinder body (100) is provided with an oil cavity (106) and an air cavity (107).

3. The bidirectional dynamically damped adjustable automotive chassis strut rod of claim 2, wherein, The isolation piston (104) is installed between the oil chamber (106) and the gas chamber (107) for isolation.

4. The bidirectional dynamic damping adjustable vertical tie rod for automobile chassis according to claim 3, characterized in that, The isolation piston (104) moves inside the cylinder (100).

5. The bidirectional dynamically damped adjustable automotive chassis strut upstrut rod of claim 1 wherein, The articular ball head (101) is configured as a pair.

6. The bidirectional dynamically damped adjustable automotive chassis strut rod of claim 1, wherein, The bidirectional valve plate damping piston (103) includes a piston assembly (108), a sealing ring (109), and a piston guide (110). The piston assembly (108) includes a piston (111) and a valve plate (112). The valve plate (112) is installed on one side of the piston (111). The piston assemblies (108) are configured as a pair. The sealing ring (109) is installed between the piston assemblies (108). The piston guide (110) is installed next to the piston assembly (108).

7. The bidirectional dynamically damped adjustable automotive chassis strut rod of claim 6, wherein, The valve plate (112) is divided into a multi-layer valve plate and an open valve plate, and the open valve plate is provided with a number of slots (113).

8. The bidirectional dynamically damped adjustable automotive chassis strut rod of claim 2, wherein, The oil cavity (106) is filled with damping oil.

9. The bidirectional dynamically damped adjustable automotive chassis strut upstrut rod of claim 2, wherein, The gas chamber (107) is filled with nitrogen.

10. The bidirectional dynamically damped adjustable automotive chassis strut rod of claim 1, wherein, The bidirectional valve plate damping piston (103) slides within the cylinder (100).

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