Multi-stage buffer structure of automobile shock absorber

Abstract

The utility model provides an automobile shock absorber multistage buffer structure which comprises a bottom plate, a cushioning plate and a top plate, the cushioning plate is arranged between the bottom plate and the top plate, a plurality of sets of connecting rods are evenly distributed and fixedly connected to the two sides of the bottom face of the top plate, and reset springs are arranged outside the connecting rods in a sleeved mode. And the reset springs are arranged on the upper surface of the cushioning plate, the bottom ends of the connecting rods penetrate through the cushioning plate to be fixedly connected with a connecting plate, a buffering assembly is arranged between the bottom face of the connecting plate and the upper surface of the bottom plate, the multi-stage buffering function is increased through the buffering assembly, and the top plate, the cushioning plate and the bottom plate are structurally matched with one another, so that the buffering effect is improved. The multiple sets of reset springs are connected through the multiple sets of connecting rods, multiple sets of cushioning modes are formed between the top plate and the cushioning plate, the structure of a single spring is distinguished, the cushioning effect is improved to a certain degree, and the cushioning performance of the multiple sets of reset springs is further enhanced through the multiple sets of cushioning assemblies arranged between the bottom face of the connecting plate and the bottom plate.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a multi-stage buffer structure of an automobile shock absorber. Background Art

[0002] Shock absorbers are used to suppress the vibration caused by the rebound of the spring after absorbing shock and the impact from the road. They are widely used in automobiles. In order to accelerate the attenuation of the vibration of the frame and body and improve the smoothness of the car's ride, shock absorbers are generally installed on the car's suspension system. Shock absorbers are easily damaged parts during the use of the car. The performance of the shock absorber will directly affect the stability of the car's driving and the life of other parts.

[0003] The publication number "CN221880111U" provides an automobile shock absorber with multi-stage buffering, including a base plate, a shell, a connecting sleeve and a top plate. The shell is fixedly connected to the top of the base plate. The number of the connecting sleeves is two and they are symmetrically installed on the top of the shell. The bottom of the top plate is fixedly connected to the position of the connecting sleeve corresponding to the position of the connecting sleeve. The bottom end of the plug rod passes through the connecting sleeve and extends to the inside of the shell. The bottom ends of the two plug rods are fixedly connected by a pressure plate. A connecting ring is welded on the top of the top plate. When shock absorption is achieved, the top plate drives the plug rod to move vertically downward under the connection limit of the connecting sleeve, and then drives the pressure plate to move downward. In the first shock absorption mechanism, the horizontal pressure sleeve can be pushed to move horizontally on the limit cross bar through the movable connection between the first connecting seat, the pressure rod and the second connecting seat, and a certain shock absorption effect is achieved by using the first spring.

[0004] However, the above device still has the following problems during implementation:

[0005] 1. Most traditional automobile shock absorbers use a single spring shock absorption method, which does not have a good shock absorption effect and efficiency, and is difficult to meet the use requirements;

[0006] 2. Current automobile shock absorbers generally lack a multi-stage buffer structure, making it difficult to improve the absorption effect of road vibration. This problem urgently needs to be solved so that automobile shock absorbers can have a multi-stage buffer structure. Utility Model Content

[0007] The purpose of the utility model is to provide a multi-stage buffer structure of an automobile shock absorber to solve the problems raised in the above background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A multi-stage buffering structure of an automobile shock absorber includes a bottom plate, a shock absorbing plate and a top plate. The shock absorbing plate is arranged between the bottom plate and the top plate. A plurality of connecting rods are evenly distributed and fixedly connected on both sides of the bottom surface of the top plate. The outer sides of the connecting rods are sleeved with reset springs, and the reset springs are arranged on the upper surface of the shock absorbing plate. The bottom ends of the connecting rods pass through the shock absorbing plate and are fixedly connected to the connecting plate. A buffer assembly is arranged between the bottom surface of the connecting plate and the upper surface of the bottom plate. The functionality of the multi-stage buffering is increased by the buffer assembly.

[0010] Preferably, a first mounting plate is fixedly connected to the center of the top surface of the top plate, and three groups of connecting holes are equidistantly arranged on the first mounting plate. Two groups of second mounting plates are symmetrically arranged and fixedly installed on both sides of the bottom plate, and threaded mounting holes are provided on the second mounting plates.

[0011] Preferably, multiple groups of through holes are symmetrically provided on both sides of the shock absorbing plate, and multiple groups of connecting rods are respectively installed through the through holes, and the diameter of the inner wall of the through hole is larger than the diameter of the outer wall of the connecting rod.

[0012] Preferably, the bottom surface and the top surface of the return spring are both provided with buffer pads, and the buffer pads are configured as polyurethane buffer pads. The buffer pads are both provided with small holes at the locations where the connecting rod passes through, and the small holes are configured to match the connecting rod.

[0013] Preferably, two groups of limit seats are symmetrically arranged on the bottom plate, and two groups of guide rods are fixedly installed on the upper surfaces of the two groups of limit seats. The top ends of the guide rods pass through the shock-absorbing plate and extend to the bottom surface of the top plate. The top ends of the guide rods are threadedly connected to the limit heads.

[0014] Preferably, the buffer assembly includes a limiting tube and a support column, the support column is slidably connected to the inside of the limiting tube, the bottom surface of the limiting tube is fixedly connected to the upper surface of the base plate, and the top surfaces of the support columns are fixedly connected to the bottom surface of the connecting plate.

[0015] Preferably, a baffle is fitted on the top of the limiting tube, a buffer rod is fixedly installed inside the limiting tube, the bottom end of the buffer rod is fixedly installed on the upper surface of the base plate, an inner plate is fitted on the bottom surface of the support column, the inner plate is fitted on the top of the buffer rod, and the upper surface of the inner plate fits with the bottom surface of the baffle.

[0016] Preferably, a buffer spring is provided inside the limiting tube, the buffer spring is sleeved on the outside of the buffer rod, the bottom end of the buffer spring is fixedly mounted on the upper surface of the bottom plate, and the top end of the buffer spring is fixedly mounted on the lower surface of the inner plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The top plate, shock absorbing plate, and bottom plate structures cooperate with each other, and multiple sets of return springs are connected by multiple sets of connecting rods to form multiple groups of shock absorbing methods between the top plate and the shock absorbing plate. This is different from the structure of a single spring and improves the shock absorbing effect to a certain extent.

[0019] 2. Multiple buffer assemblies installed between the bottom surface of the connecting plate and the base plate further enhance the cushioning performance of the multiple return springs, achieving a multi-level buffering effect. The inner plate is limited by the provided limit tubes and baffles to ensure the longitudinal movement of the inner plate and support column. At the same time, the cooperation of the buffer rod and buffer spring further reduces the generation of vibration.

[0020] 3. The guide rod is installed through the set limit seat. The top of the guide rod passes through the shock absorbing plate and the top plate. When the car encounters vibration, the return spring and the buffer assembly increase the shock absorption performance. At the same time, the guide rod structure limits the guide of the buffer, making the overall structure less likely to shift longitudinally and alleviating vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the main structure of the return spring portion of the utility model;

[0023] Figure 3 This is a schematic diagram of the partially exploded structure of the shock absorbing plate of the present utility model;

[0024] Figure 4 This is a schematic diagram of the exploded structure of the buffer component of the present invention.

[0025] In the figure: 1. Bottom plate; 2. Shock-absorbing plate; 3. Top plate; 4. Connecting rod; 401. Through hole; 402. Connecting plate; 5. Reset spring; 501. Buffer gasket; 6. Buffer assembly; 601. Limiting tube; 602. Support column; 7. First mounting plate; 8. Second mounting plate; 9. Limiting seat; 10. Guide rod; 11. Limiting head; 12. Baffle; 13. Buffering rod; 14. Inner plate; 15. Buffering spring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of this utility model to clearly and completely describe the technical solutions in the embodiments of this utility model. Obviously, the embodiments described are only part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this utility model.

[0027] See also Figure 1-4 , the utility model provides a technical solution:

[0028] Example 1:

[0029] A multi-stage buffer structure of a car shock absorber includes a bottom plate 1, a damping plate 2 and a top plate 3. The damping plate 2 is arranged between the bottom plate 1 and the top plate 3. A plurality of groups of connecting rods 4 are evenly distributed and fixedly connected on both sides of the bottom surface of the top plate 3. The outer sides of the connecting rods 4 are sleeved with return springs 5. The return springs 5 ​​are arranged on the upper surface of the damping plate 2. The bottom ends of the connecting rods 4 pass through the damping plate 2 and are fixedly connected to the connecting plate 402. A buffer component 6 is arranged between the bottom surface of the connecting plate 402 and the upper surface of the bottom plate 1. The buffer component 6 increases the functionality of multi-stage buffering. The top plate 3, the damping plate 2 and the bottom plate 1 cooperate with each other, and the plurality of groups of return springs 5 ​​are connected by the plurality of groups of connecting rods 4. A multi-group buffering mode is formed between the top plate 3 and the damping plate 2, which is different from the structure of a single spring and increases the cushioning effect to a certain extent.

[0030] A first mounting plate 7 is fixedly connected to the center of the top surface of the top plate 3. Three groups of connection holes are equidistantly provided on the first mounting plate 7. Two groups of second mounting plates 8 are symmetrically fixedly installed on both sides of the bottom plate 1. The second mounting plates 8 are provided with threaded mounting holes for easy external connection and installation.

[0031] Multiple sets of through holes 401 are symmetrically formed on both sides of the shock absorbing plate 2. Multiple sets of connecting rods 4 are respectively installed through the through holes 401. The inner diameter of the through holes 401 is larger than the outer diameter of the connecting rods 4, so that the connecting rods 4 do not interfere with the inner wall of the through holes 401 during vibration.

[0032] The bottom and top surfaces of the return spring 5 are both provided with a buffer pad 501, which is a polyurethane buffer pad. The buffer pad 501 is provided with a small hole at the point where the connecting rod 4 passes through, and the small hole is matched with the connecting rod 4.

[0033] Two groups of limit seats 9 are symmetrically arranged on the bottom plate 1, and two groups of guide rods 10 are fixedly installed on the upper surface of the two groups of limit seats 9. The top end of the guide rod 10 passes through the shock-absorbing plate 2 and extends to the bottom surface of the top plate 3. The top end of the guide rod 10 is threadedly connected to the limit head 11, and the top end of the guide rod 10 is limited by the limit head 11.

[0034] Example 2:

[0035] Based on the first embodiment, this embodiment details the buffer assembly 6 in the first embodiment. The buffer assembly 6 includes a limiting tube 601 and a support column 602. The support column 602 is slidably connected to the inside of the limiting tube 601. The bottom surface of the limiting tube 601 is fixedly connected to the upper surface of the bottom plate 1. The top surfaces of the support columns 602 are fixedly connected to the bottom surface of the connecting plate 402.

[0036] The baffle 12 is fitted on the top of the limiting tube 601, and a buffer rod 13 is fixedly installed inside the limiting tube 601. The bottom end of the buffer rod 13 is fixedly installed on the upper surface of the bottom plate 1. The bottom surface of the support column 602 is fitted with an inner plate 14. The inner plate 14 is fitted on the top of the buffer rod 13, and the upper surface of the inner plate 14 is fitted with the bottom surface of the baffle 12.

[0037] A buffer spring 15 is provided inside the limiting tube 601, and the buffer spring 15 is sleeved on the outside of the buffer rod 13. The bottom end of the buffer spring 15 is fixedly installed on the upper surface of the base plate 1, and the top end of the buffer spring 15 is fixedly installed on the lower surface of the inner plate 14. By setting multiple groups of buffer components 6 between the bottom surface of the connecting plate 402 and the base plate 1, the shock absorption of the multiple groups of reset springs 5 ​​is further enhanced, so that the buffering effect reaches multi-level buffering.

[0038] Working principle: During use, the top plate 3, the shock absorbing plate 2, and the bottom plate 1 cooperate with each other, and multiple groups of return springs 5 ​​are connected by multiple groups of connecting rods 4, so as to form multiple groups of shock absorbing between the top plate 3 and the shock absorbing plate 2. The inner plate 14 is limited by the provided limiting tube 601 and the baffle 12 to ensure the longitudinal movement of the inner plate 14 and the support column 602. At the same time, the buffer rod 13 and the buffer spring 15 cooperate to further reduce the generation of vibration.

[0039] The guide rod 10 is installed through the set limit seat 9, and the top end of the guide rod 10 passes through the shock absorbing plate 2 and the top plate 3. When the car encounters vibration, the return spring 5 and the buffer assembly 6 increase the shock absorption performance, while the guide rod 10 structure limits the guide of the buffer, making the overall structure not easily displaced in the longitudinal movement, thereby alleviating vibration.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-stage buffer structure for an automobile shock absorber, comprising a bottom plate (1), a shock absorbing plate (2) and a top plate (3), characterized in that: The shock-absorbing plate (2) is arranged between the bottom plate (1) and the top plate (3); a plurality of connecting rods (4) are evenly distributed and fixedly connected on both sides of the bottom surface of the top plate (3); the outer sides of the connecting rods (4) are sleeved with reset springs (5); the reset springs (5) are arranged on the upper surface of the shock-absorbing plate (2); the bottom ends of the connecting rods (4) pass through the shock-absorbing plate (2) and are fixedly connected to a connecting plate (402); a buffer assembly (6) is arranged between the bottom surface of the connecting plate (402) and the upper surface of the bottom plate (1); and the functionality of multi-stage buffering is increased by the buffer assembly (6).

2. The multi-stage buffer structure of an automobile shock absorber according to claim 1, characterized in that: A first mounting plate (7) is fixedly connected to the center of the top surface of the top plate (3), and three groups of connection holes are equidistantly arranged on the first mounting plate (7). Two groups of second mounting plates (8) are symmetrically arranged and fixedly installed on both sides of the bottom plate (1), and threaded mounting holes are provided on the second mounting plates (8).

3. The multi-stage buffer structure of an automobile shock absorber according to claim 1, characterized in that: Multiple groups of through holes (401) are symmetrically provided on both sides of the shock absorbing plate (2), and multiple groups of connecting rods (4) are respectively installed through the inside of the through holes (401), and the inner wall diameter of the through holes (401) is larger than the outer wall diameter of the connecting rods (4).

4. The multi-stage buffer structure of an automobile shock absorber according to claim 1, characterized in that: The bottom surface and the top surface of the return spring (5) are both provided with a buffer pad (501), and the buffer pad (501) is configured as a polyurethane buffer pad. The buffer pad (501) is provided with a small hole at the point where the connecting rod (4) passes through, and the small hole is matched with the connecting rod (4).

5. The multi-stage buffer structure of an automobile shock absorber according to claim 1, characterized in that: Two groups of limit seats (9) are symmetrically arranged on the bottom plate (1), and two groups of guide rods (10) are fixedly installed on the upper surfaces of the two groups of limit seats (9). The top ends of the guide rods (10) pass through the damping plate (2) and extend to the bottom surface of the top plate (3). The top ends of the guide rods (10) are threadedly connected to the limit heads (11).

6. The multi-stage buffer structure of an automobile shock absorber according to claim 1, characterized in that: The buffer assembly (6) comprises a limiting tube (601) and a support column (602), wherein the support column (602) is slidably connected to the interior of the limiting tube (601), the bottom surface of the limiting tube (601) is fixedly connected to the upper surface of the bottom plate (1), and the top surface of the support column (602) is fixedly connected to the bottom surface of the connecting plate (402).

7. The multi-stage buffer structure of an automobile shock absorber according to claim 6, characterized in that: The top end of the limiting tube (601) is fitted with a baffle (12), a buffer rod (13) is fixedly installed inside the limiting tube (601), the bottom end of the buffer rod (13) is fixedly installed on the upper surface of the bottom plate (1), and the bottom surface of the supporting column (602) is fitted with an inner plate (14), the inner plate (14) is fitted with the top end of the buffer rod (13), and the upper surface of the inner plate (14) is fitted with the bottom surface of the baffle (12).

8. The multi-stage buffer structure of an automobile shock absorber according to claim 7, characterized in that: A buffer spring (15) is provided inside the limiting tube (601), and the buffer spring (15) is sleeved on the outside of the buffer rod (13). The bottom end of the buffer spring (15) is fixedly mounted on the upper surface of the bottom plate (1), and the top end of the buffer spring (15) is fixedly mounted on the lower surface of the inner plate (14).

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