Buffer device for automotive suspension and chassis of vehicle

Abstract

The invention discloses a buffer device for an automotive suspension and a chassis of a vehicle. The buffer device comprises a connecting assembly and a buffer assembly, the connecting assembly comprises a connecting shell and a mounting part; the buffering assembly comprises a fixing block and a rectangular pipe, the rectangular pipe is connected with the top of the fixing block, the length and the width of the rectangular pipe are smaller than those of the fixing block, the rectangular pipe is inserted into the connecting shell, the mounting part penetrates through the connecting shell and the rectangular pipe, and the top of the connecting shell is used for being connected with a frame assembly of an automobile. When a vehicle passes through an uneven place, the steel plate spring assembly of the vehicle deforms, drives the rear axle assembly to move upwards and makes contact with the bottom of the fixing block, then the fixing block enters a working state, the maximum jumping height of wheels is limited, and the safety of the whole vehicle is improved. And when the buffer device needs to be replaced, only the fixing block and the rectangular pipe need to be detached from the connecting shell through the mounting part, so that the maintenance and replacement efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and more particularly to a buffer device for an automobile suspension and a chassis of the vehicle. Background Art

[0002] With economic development and improved living standards, automobiles have become an essential means of transportation. However, with increasingly stringent performance requirements for vehicle noise, harshness, and handling stability, an increasing number of passenger vehicles are adopting independent suspension structures. The buffer block assembly is a crucial component of the independent suspension structure, significantly impacting the vehicle's ride smoothness and handling stability. As an impact-mitigating element in the vehicle suspension system, it limits the maximum wheel jump height, preventing spring coiling and shock absorber impact, thereby enhancing vehicle safety. It also modifies the linear characteristics of the suspension system, improving ride comfort, assisting the shock absorber in attenuating body vibrations during the compression stroke, reducing collision noise, and assisting the spring in increasing load-bearing capacity. This product offers sufficient strength and longevity.

[0003] In light trucks, due to the large number of usage scenarios and short life cycle, the arc height of leaf springs varies greatly. Buffer blocks are used in conjunction with suspension limiters, with a wide variety of heights. In addition, due to the presence of rubber parts, molds need to be opened each time, which affects the product development cycle and brings a large amount of mold and investment waste to suppliers. In combination with the characteristics of commercial vehicles, the buffer blocks are improved to reduce investment in the development process.

[0004] Therefore, how to provide a buffer device for automobile suspension and a chassis of the vehicle has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The object of the present invention is to provide a new technical solution for a buffer device for an automobile suspension and a chassis of the vehicle.

[0006] According to a first aspect of the present invention, there is provided a buffer device for an automobile suspension, comprising: a connecting assembly and a buffer assembly;

[0007] The connecting assembly includes a connecting shell and a mounting portion;

[0008] The buffer assembly includes a fixed block and a rectangular tube, the rectangular tube is connected to the top of the fixed block, and the length and width of the rectangular tube are smaller than the length and width of the fixed block, the rectangular tube is inserted into the connecting shell, the mounting portion passes through the connecting shell and the rectangular tube, and the top of the connecting shell is used to connect to the frame assembly of the car.

[0009] Optionally, the connection assembly further includes a fixing plate and a limiting plate, the fixing plate is connected to the top of the connection shell, and the limiting plate is arranged on one side of the fixing plate.

[0010] Optionally, there are two limiting plates, and the limiting plates are arc-shaped structures, and the center of the limiting plates is located above the fixing plate.

[0011] Optionally, the connecting assembly further includes a first fastening bolt and a first mounting hole, the first mounting hole is located at the center of the fixing plate, and the first fastening bolt passes through the first mounting hole to be connected to the frame assembly of the automobile.

[0012] Optionally, the mounting portion includes a second mounting hole and a second fastening bolt, and the second mounting holes are respectively provided on two opposite side walls of the connecting housing;

[0013] The buffer assembly also includes a first connecting hole and a nut. The first connecting hole is arranged on the two opposite side walls of the rectangular tube. The nuts are respectively arranged on the inner sides of the first connecting hole. The second fastening bolts respectively pass through the second mounting hole and the first connecting hole and are connected to the nuts.

[0014] Optionally, the fixing block is made of rubber vulcanizate.

[0015] Optionally, the top connecting shell of the connecting shell is an arc-shaped structure;

[0016] The connecting assembly also includes a connecting plate and a clamping block. A groove is provided at the center of the connecting plate. The clamping block is provided around the groove. The bottom of the fixing block is located in the groove. The clamping block is clamped with the outer wall of the fixing block.

[0017] Optionally, arc-shaped plates are provided at both ends of the connecting plate, and second connecting holes are provided at the four corners of the connecting plate.

[0018] The present invention also provides a vehicle chassis, which adopts any of the above-mentioned buffer devices for automobile suspension, comprising a frame assembly, a leaf spring assembly, a shock absorber assembly and a rear axle assembly, wherein the leaf spring assembly is located below the frame assembly, the two ends of the leaf spring assembly are respectively connected to the frame assembly and the rear axle assembly, and the two ends of the shock absorber assembly are respectively connected to the frame assembly and the rear axle assembly;

[0019] The buffer device is arranged at the bottom of the frame assembly, the connecting shell is connected to the frame assembly, and the fixing block is located above the rear axle assembly.

[0020] The beneficial effects of the present invention are:

[0021] The present invention connects a rectangular tube to the top of a fixed block, wherein the length and width of the rectangular tube are smaller than those of the fixed block. The rectangular tube is inserted into a connecting shell, and a mounting portion passes through the connecting shell and the rectangular tube. The top of the connecting shell is used to connect to the frame assembly of the automobile. During use, the operator installs the top of the connecting shell on the frame assembly of the automobile. When the vehicle passes over an uneven surface, the vehicle's leaf spring assembly will deform, driving the rear axle assembly to move upward and come into contact with the bottom of the fixed block, thereby causing the fixed block to enter a working state, limiting the maximum jump height of the wheel, preventing the vehicle's leaf spring assembly from winding and the shock absorber from being hit, and increasing the safety of the entire vehicle. The present invention also solves the problem of the wide variety of existing buffer blocks, reduces the number of types and increases the number of single products used, reduces costs and shortens the development cycle. At the same time, when the buffer device needs to be replaced, it is only necessary to remove the fixed block and the rectangular tube from the connecting shell through the mounting portion, thereby improving the efficiency of maintenance and replacement and reducing the labor intensity of the operator.

[0022] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0024] Figure 1 A structural diagram of a buffer device for an automobile suspension according to the present invention;

[0025] Figure 2 is a structural diagram of the connection assembly of the present invention;

[0026] Figure 3 is a structural diagram of the buffer assembly of the present invention;

[0027] Figure 4 FIG1 is a structural diagram of another embodiment of a buffer device for an automobile suspension according to the present invention;

[0028] Figure 5 This is a structural diagram of a buffer device for automobile suspension of the present invention installed on a vehicle frame assembly.

[0029] The markings in the figure are as follows: 1. Connecting assembly; 11. Connecting shell; 12. Fixing plate; 13. Limiting plate; 14. First fastening bolt; 15. First mounting hole; 16. Second mounting hole; 17. Second fastening bolt; 18. Connecting plate; 19. Clamping block; 2. Buffer assembly; 21. Fixing block; 22. Rectangular tube; 23. First connecting hole; 24. Nut; 3. Arc plate; 4. Second connecting hole; 5. Frame assembly; 6. Leaf spring assembly; 7. Shock absorber assembly; 8. Rear axle assembly. DETAILED DESCRIPTION

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0032] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0033] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0034] like Figures 1 to 4 As shown, an embodiment of the present invention provides a buffer device for an automobile suspension, comprising: a connecting component 1 and a buffer component 2.

[0035] The connection assembly 1 includes a connection housing 11 and a mounting portion.

[0036] The buffer assembly 2 includes a fixed block 21 and a rectangular tube 22. The rectangular tube 22 is connected to the top of the fixed block 21, and the length and width of the rectangular tube 22 are smaller than the length and width of the fixed block 21. The rectangular tube 22 is inserted into the connecting shell 11, and the mounting portion passes through the connecting shell 11 and the rectangular tube 22. The top of the connecting shell 11 is used to connect to the frame assembly 5 of the car.

[0037] During use, the operator installs the top of the connecting shell 11 on the frame assembly 5 of the car. When the vehicle passes through an uneven area, the leaf spring assembly 6 of the vehicle will deform, driving the rear axle assembly 8 to move upward and contact the bottom of the fixed block 21, thereby putting the fixed block 21 into working state and limiting the maximum jump height of the wheel.

[0038] The present invention connects a rectangular tube 22 to the top of a fixing block 21, wherein the length and width of the rectangular tube 22 are smaller than those of the fixing block 21. The rectangular tube 22 is inserted into a connecting housing 11, and a mounting portion passes through the connecting housing 11 and the rectangular tube 22. The top of the connecting housing 11 is used to connect to the vehicle's frame assembly 5. During use, an operator installs the top of the connecting housing 11 on the vehicle's frame assembly 5. When the vehicle passes over an uneven surface, the vehicle's leaf spring assembly 6 will deform, driving the rear axle assembly 8 to move upward and contact the bottom of the fixing block 21, thereby causing the fixing block 21 to enter an operating state, limiting the maximum jump height of the wheel, preventing the vehicle's leaf spring assembly 6 from winding and preventing the shock absorber from being hit, thereby increasing the safety of the entire vehicle. The present invention also solves the problem of a wide variety of existing buffer blocks, reduces the number of types and increases the use of single products, reduces costs and shortens the development cycle. At the same time, when the buffer device needs to be replaced, it is only necessary to remove the fixed block 21 and the rectangular tube 22 from the connecting shell 11 through the installation part, thereby improving the efficiency of maintenance and replacement and reducing the labor intensity of the operator.

[0039] In one embodiment of the buffer device for automobile suspension of the present invention, as Figure 1 and Figure 2 As shown, the connection assembly 1 further includes a fixing plate 12 and a limiting plate 13 . The fixing plate 12 is connected to the top of the connection shell 11 , and the limiting plate 13 is arranged on one side of the fixing plate 12 .

[0040] The present invention connects the fixing plate 12 to the top of the connecting shell 11, and sets a limit plate 13 on one side of the fixing plate 12. The limit plate 13 is clamped with the bottom of the vehicle frame assembly 5, thereby increasing the stability of the buffer device for the vehicle suspension of the present invention when installed on the frame assembly 5.

[0041] In one embodiment of the buffer device for automobile suspension of the present invention, as Figure 2 As shown, there are two limiting plates 13 , and the limiting plates 13 are arc-shaped structures, and the center of the limiting plates 13 is located above the fixing plate 12 .

[0042] Specifically, there is a gap between the two limiting plates 13, so as to avoid parts of the frame assembly 5.

[0043] In one embodiment of the buffer device for automobile suspension of the present invention, as Figure 1 As shown, the connecting assembly 1 further includes a first fastening bolt 14 and a first mounting hole 15 . The first mounting hole 15 is located at the center of the fixing plate 12 . The first fastening bolt 14 passes through the first mounting hole 15 and is connected to the vehicle frame assembly 5 .

[0044] The present invention further increases the stability of the installation by arranging the first mounting hole 15 at the center position of the fixing plate 12 and allowing the first fastening bolt 14 to pass through the first mounting hole 15 and connect with the vehicle frame assembly 5, thereby effectively improving the service life and safety of the buffer device for the vehicle suspension of the present invention.

[0045] In one embodiment of the buffer device for automobile suspension of the present invention, as Figure 2 and Figure 3 As shown, the mounting portion includes a second mounting hole 16 and a second fastening bolt 17 . The second mounting holes 16 are respectively provided on two opposite side walls of the connecting housing 11 .

[0046] The buffer assembly 2 also includes a first connecting hole 23 and a nut 24. The first connecting hole 23 is arranged on the two opposite side walls of the rectangular tube 22, and the nuts 24 are respectively arranged on the inner side of the first connecting hole 23. The second fastening bolt 17 passes through the second mounting hole 16, the first connecting hole 23 and the nut 24 respectively.

[0047] The present invention arranges the first connecting hole 23 on the two opposite side walls of the rectangular tube 22, and arranges the nuts 24 on the inner sides of the first connecting hole 23 respectively, and makes the second fastening bolt 17 pass through the second mounting hole 16 and the first connecting hole 23 and connect with the nut 24 respectively, and then through the cooperation of the second fastening bolt 17 and the nut 24, the fixing block 21 can be installed on the connecting shell 11. When the buffer device needs to be replaced, it is only necessary to remove the fixing block 21 and the rectangular tube 22 from the connecting shell 11 through the mounting portion, thereby improving the efficiency of maintenance and replacement and reducing the labor intensity of the operator.

[0048] In one embodiment of the buffer device for automobile suspension of the present invention, the material of the fixing block 21 is rubber vulcanizate, thereby effectively increasing the shock absorbing effect.

[0049] In one embodiment of the buffer device for automobile suspension of the present invention, as Figure 4 As shown, the difference between this embodiment and the above embodiment is that the top connecting shell 11 of the connecting shell 11 is an arc-shaped structure.

[0050] The connecting assembly 1 also includes a connecting plate 18 and a clamping block 19. A groove is provided at the center of the connecting plate 18. The clamping block 19 is provided around the groove. The bottom of the fixing block 21 is located in the groove. The clamping block 19 is clamped to the outer wall of the fixing block 21.

[0051] The present invention provides a groove at the center position of the connecting plate 18, and the clamping blocks 19 are provided on the four sides of the groove, and the bottom of the fixing block 21 is located in the groove, and the clamping blocks 19 are clamped with the outer wall of the fixing block 21. The present invention can effectively adapt to the development characteristics of commercial vehicles through structural changes, and has the characteristics of short product life cycle, wide variety, short development cycle, etc., effectively reducing mold investment and development cycle. At the same time, when replacing the fixing block 21, it is only necessary to disassemble the second fastening bolt 17 of the mounting portion to replace it.

[0052] In one embodiment of the buffer device for automobile suspension of the present invention, arc-shaped plates 3 are provided at both ends of the connecting plate 18, and second connecting holes 4 are provided at the four corners of the connecting plate 18. This arrangement facilitates the installation of the connecting plate 18.

[0053] The present invention also provides a chassis of a vehicle, such as Figure 5 As shown, the above-mentioned buffer device for automobile suspension includes a frame assembly 5, a leaf spring assembly 6, a shock absorber assembly 7 and a rear axle assembly 8. The leaf spring assembly 6 is located below the frame assembly 5, and the two ends of the leaf spring assembly 6 are respectively connected to the frame assembly 5 and the rear axle assembly 8, and the two ends of the shock absorber assembly 7 are respectively connected to the frame assembly 5 and the rear axle assembly 8.

[0054] The buffer device is arranged at the bottom of the frame assembly 5 , the connecting shell 11 is connected to the frame assembly 5 , and the fixing block 21 is located above the rear axle assembly 8 .

[0055] When the vehicle passes through an uneven area, the leaf spring assembly 6 of the vehicle will deform, driving the rear axle assembly 8 to move upward and come into contact with the bottom of the fixed block 21, thereby causing the fixed block 21 to enter a working state, limiting the maximum jump height of the wheel, preventing the leaf spring assembly 6 of the vehicle from winding and the shock absorber from being hit, and increasing the safety of the entire vehicle.

[0056] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A buffer device for automobile suspension, characterized in that: include: Connecting components and buffer components; The connecting assembly includes a connecting shell and a mounting portion; The buffer assembly includes a fixed block and a rectangular tube, the rectangular tube is connected to the top of the fixed block, and the length and width of the rectangular tube are smaller than the length and width of the fixed block, the rectangular tube is inserted into the connecting shell, the mounting portion passes through the connecting shell and the rectangular tube, and the top of the connecting shell is used to connect to the frame assembly of the car.

2. The buffer device for automobile suspension according to claim 1, characterized in that: The connecting assembly further includes a fixing plate and a limiting plate. The fixing plate is connected to the top of the connecting shell, and the limiting plate is arranged on one side of the fixing plate.

3. The buffer device for automobile suspension according to claim 2, characterized in that: There are two limiting plates, and the limiting plates are arc-shaped structures, and the center of the limiting plates is located above the fixing plate.

4. The buffer device for automobile suspension according to claim 2, characterized in that: The connecting assembly further includes a first fastening bolt and a first mounting hole. The first mounting hole is located at the center of the fixing plate. The first fastening bolt passes through the first mounting hole and is connected to the vehicle frame assembly.

5. The buffer device for automobile suspension according to claim 1, characterized in that: The mounting portion includes a second mounting hole and a second fastening bolt, wherein the second mounting holes are respectively provided on two opposite side walls of the connecting housing; The buffer assembly also includes a first connecting hole and a nut. The first connecting hole is arranged on the two opposite side walls of the rectangular tube. The nuts are respectively arranged on the inner sides of the first connecting hole. The second fastening bolts respectively pass through the second mounting hole and the first connecting hole and are connected to the nuts.

6. The buffer device for automobile suspension according to claim 1, characterized in that: The material of the fixing block is rubber vulcanize.

7. The buffer device for automobile suspension according to claim 1, characterized in that: The top connecting shell of the connecting shell is an arc-shaped structure; The connecting assembly also includes a connecting plate and a clamping block. A groove is provided at the center of the connecting plate. The clamping block is provided around the groove. The bottom of the fixing block is located in the groove. The clamping block is clamped with the outer wall of the fixing block.

8. The buffer device for automobile suspension according to claim 7, characterized in that: Arc plates are provided at both ends of the connecting plate, and second connecting holes are provided at the four corners of the connecting plate.

9. A chassis of a vehicle, characterized in that: A buffer device for an automobile suspension according to any one of claims 1 to 8, comprising a frame assembly, a leaf spring assembly, a shock absorber assembly, and a rear axle assembly, wherein the leaf spring assembly is located below the frame assembly, two ends of the leaf spring assembly are respectively connected to the frame assembly and the rear axle assembly, and two ends of the shock absorber assembly are respectively connected to the frame assembly and the rear axle assembly; The buffer device is arranged at the bottom of the frame assembly, the connecting shell is connected to the frame assembly, and the fixing block is located above the rear axle assembly.

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