Spacing-adjustable shock absorber

Abstract

The shock absorber comprises a bottom cylinder and a mounting plate which are oppositely arranged, a buffer spring is arranged between the bottom cylinder and the mounting plate, a piston rod extending into the bottom cylinder is arranged on the mounting plate, a plurality of inserting holes distributed in the length direction of the piston rod are formed in the piston rod, and the inserting holes are communicated with the bottom cylinder. The installation plate is provided with an insertion rod inserted into the insertion hole and a clamping tooth installed in a rotating mode, one end of the clamping tooth abuts against the insertion rod, and the clamping tooth can rotate and be away from the insertion rod. An inserting hole is formed in a piston rod, a mounting plate is inserted into the inserting hole through an inserting rod to move up and down for adjustment, then the distance between a bottom cylinder and the mounting plate is adjusted, namely, a buffer spring is compressed, so that the damping performance of the shock absorber is improved, and when the damping effect of the shock absorber used by a vehicle gradually declines, the buffer spring is compressed and adjusted, so that the damping effect of the shock absorber is improved. The shock absorption effect of the shock absorber is improved, and the comfort of follow-up driving of a vehicle is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a shock absorber with adjustable spacing. Background Art

[0002] A shock absorber is a shock-absorbing device applied to vehicles. When a vehicle is driving on a bumpy road section, the buffer spring of the shock absorber absorbs and stores vibration energy, and the piston rod moves up and down in the bottom cylinder, so that the shock-absorbing oil flows back and forth in the buffer cavity, thereby consuming the vibration energy to achieve the vibration reduction of the vehicle.

[0003] However, the current shock absorbers have relatively single functions and generally cannot be adjusted again after leaving the factory. As a result, as the vehicle is used, the shock absorbers can only passively attenuate their shock-absorbing performance, which in turn affects the subsequent driving comfort of the vehicle. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a shock absorber with adjustable spacing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A shock absorber with adjustable spacing includes a bottom cylinder and a mounting plate arranged opposite to each other. A buffer spring is arranged between the bottom cylinder and the mounting plate. A piston rod extending into the bottom cylinder is arranged on the mounting plate. A plurality of jacks distributed along the length direction of the piston rod are arranged on the piston rod. A plug rod inserted into the jacks and a rotatably mounted tooth are arranged on the mounting plate. One end of the tooth abuts against the plug rod, and the tooth can rotate and move away from the plug rod.

[0007] Preferably, a chute is arranged on the mounting plate. A through hole penetrating the mounting plate upward is arranged in the chute. A sliding plate is slidably arranged in the chute. The tooth is rotatably mounted on the sliding plate and penetrates the through hole upward. The end of the tooth penetrating the through hole abuts against the plug rod.

[0008] Preferably, a resisting groove corresponding to the position of the tooth is arranged on the plug rod. A torsion spring is arranged on the sliding plate. The torsion spring drives the tooth to rotate and abut against the resisting surface of the resisting groove.

[0009] Preferably, a first spring is arranged on the plug rod. The first spring abuts against one end of the tooth penetrating the through hole through the plug rod.

[0010] Preferably, a second spring is arranged in the chute. The second spring abuts against the sliding plate and pushes the tooth to abut against the side wall one of the through hole.

[0011] Preferably, the sliding plate can slide into the chute to drive the tooth to abut against the side wall two of the through hole and rotate away from the plug rod.

[0012] Preferably, a fastener is installed at the port of the chute.

[0013] Preferably, a buffer cavity is formed inside the bottom cylinder, a bottom plate for closing the buffer cavity is installed on the bottom cylinder, a partition plate is arranged on a section of the piston rod extending into the buffer cavity, and flow holes are formed in the partition plate.

[0014] Preferably, a buckle plate is arranged on the bottom plate, a sealing ring is arranged between the bottom plate and the buckle plate, and the sealing ring abuts against the outer periphery of the piston rod.

[0015] The beneficial effects of the utility model are as follows:

[0016] By forming insertion holes in the piston rod, the mounting plate is inserted and moved up and down through the insertion rods in the insertion holes, thereby adjusting the distance between the bottom cylinder and the mounting plate, that is, compressing the buffer spring to improve the shock absorption performance of the shock absorber. When the shock absorption effect of the shock absorber gradually deteriorates during the use of the vehicle, the buffer spring is compressed and adjusted to improve the shock absorption effect of the shock absorber and ensure the comfort of subsequent driving of the vehicle. Description of the Drawings

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is a schematic cross-sectional view of the utility model;

[0019] Figure 3 is Figure 2 an enlarged schematic view of part A in

[0020] Figure 4 is Figure 2 an enlarged schematic view of part B in

[0021] Figure 5 is Figure 4 an enlarged schematic view of part C in

[0022] Figure 6 is a schematic diagram of the rotation of the gear teeth of the utility model;

[0023] Figure 7 is a schematic diagram of the cooperation between the gear teeth and the insertion rod of the utility model;

[0024] Figure 8 is an assembly schematic diagram of the gear teeth of the utility model.

[0025] In the figure: bottom cylinder 1, buffer cavity 11, bottom plate 12, sealing ring 13, buckle plate 14, piston rod 2, partition plate 21, flow hole 211, jack 22, mounting plate 3, inserting rod 31, abutting groove 32, abutting surface 321, first spring 33, sliding groove 34, sliding plate 35, notch 351, locking tooth 36, torsion spring 37, through hole 38, first side wall 381, second side wall 382, second spring 39, buffer spring 4. Detailed implementation mode

[0026] The present utility model will be further described below in conjunction with the accompanying drawings and the detailed implementation mode:

[0027] In the description of this specification, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0028] As Figures 1 to 8 shown, a shock absorber with adjustable spacing includes a relatively arranged bottom cylinder 1 and a mounting plate 3. An opening is provided at the upper end of the bottom cylinder 1. A buffer cavity 11 is provided inside the bottom cylinder 1. Shock-absorbing oil for shock absorption and buffering is injected into the buffer cavity 11. A bottom plate 12 for closing the buffer cavity 11 is installed on the bottom cylinder 1, and the relative sealing of the buffer cavity 11 is realized through the bottom plate 12.

[0029] A buffer spring 4 is provided between the bottom cylinder 1 and the mounting plate 3. A piston rod 2 extending into the bottom cylinder 1 is provided on the mounting plate 3. A partition plate 21 is provided on the section of the piston rod 2 extending into the buffer cavity 11. The partition plate 21 divides the buffer cavity 11 into upper and lower parts. Flow holes 211 are provided on the partition plate 21. When the piston rod 2 moves up and down and drives the partition plate 21 to move, the shock-absorbing oil in the buffer cavity 11 flows through the flow holes 211 in the buffer cavity 11 divided into upper and lower parts to absorb and consume the vibration energy of the shock absorber, thereby realizing the effect of the shock absorber.

[0030] A buckle plate 14 is provided on the bottom plate 12. A sealing ring 13 is provided between the bottom plate 12 and the buckle plate 14. The sealing ring 13 is pressed and fixed by the buckle plate 14 to abut the sealing ring 13 against the outer periphery of the piston rod 2, so as to prevent the shock-absorbing oil from leaking out from the gap on the outer periphery of the piston rod 2.

[0031] A plurality of jacks 22 distributed along the length direction are provided on the piston rod 2. Inserting rods 31 inserted into the jacks 22 and rotatably installed locking teeth 36 are provided on the mounting plate 3. The mounting plate 3 is installed by inserting the inserting rods 31 into the jacks 22.

[0032] When the insertion rod 31 disengages from the insertion hole 22, the mounting plate 3 can move up and down along the piston rod 2 to adjust the distance between the bottom cylinder 1 and the mounting plate 3. Furthermore, the buffer spring 4 between the bottom cylinder 1 and the mounting plate 3 can be compressed to increase the elastic potential energy of the buffer spring 4, that is, the shock absorption performance of this embodiment is improved.

[0033] As the shock absorption effect of the shock absorber gradually declines during vehicle use, the buffer spring 4 is compressed and adjusted to improve the shock absorption effect of the shock absorber. That is, the shock absorption force of the shock absorber is increased to ensure the comfort of subsequent vehicle driving.

[0034] To improve the reliability of the assembly of the insertion rod 31 and prevent the insertion rod 31 from malfunctioning and disengaging from the insertion hole 22, one end of the locking tooth 36 abuts against the insertion rod 31. Specifically, a sliding groove 34 is formed on the mounting plate 3, a through hole 38 penetrating the mounting plate 3 upward is formed in the sliding groove 34, and a sliding plate 35 is slidably arranged in the sliding groove 34. The sliding plate 35 can slide back and forth in the sliding groove 34.

[0035] A notch 351 is formed at one end of the sliding plate 35 located in the sliding groove 34. The locking tooth 36 is rotatably installed at the notch 351 of the sliding plate 35 and penetrates the through hole 38 upward. A torsion spring 37 is arranged on the sliding plate 35. The torsion spring 37 drives the end of the locking tooth 36 penetrating the through hole 38 to rotate towards the side close to the insertion rod 31.

[0036] An abutting groove 32 corresponding to the position of the locking tooth 36 is formed on the insertion rod 31. The torsion spring 37 drives the locking tooth 36 to rotate and abut against the abutting surface 321 of the abutting groove 32. That is, the end of the locking tooth 36 penetrating the through hole 38 abuts against the insertion rod 31 to limit the outward movement of the insertion rod 31 from the insertion hole 22 and ensure that the insertion rod 31 can be installed in the insertion hole 22 more securely.

[0037] Furthermore, a first spring 33 is arranged on the insertion rod 31. One end of the first spring 33 is fixed to the insertion rod 31, and the other end of the first spring 33 abuts against the outer periphery of the mounting plate 3. The first spring 33 is used to drive the insertion rod 31 to displace outward. The first spring 33 abuts against the end of the locking tooth 36 penetrating the through hole 38 through the insertion rod 31. Furthermore, the abutting surface 321 can better abut against the end of the locking tooth 36 penetrating the through hole 38 to ensure the stability and reliability of the installation of the insertion rod 31.

[0038] To improve the installation of the sliding plate 35 in the sliding groove 34, a second spring 39 is arranged in the sliding groove 34. One end of the second spring 39 abuts against the sliding plate 35 outward. The second spring 39 abuts against the sliding plate 35 and pushes the locking tooth 36 to abut against the side wall 381 of the through hole 38.

[0039] Specifically, the first spring 33 abuts against one end of the engaging tooth 36 passing through the through hole 38 through the inserting rod 31, and the second spring 39 abuts against the other end of the engaging tooth 36 through the sliding plate 35. The first spring 33 and the second spring 39 cooperate to drive the engaging tooth 36 to displace outwards, so that the engaging tooth 36 abuts against the first side wall 381, and the engaging tooth 36 is limited in the through hole 38 under the action of the first spring 33 and the second spring 39, which also improves the reliability of the engaging tooth 36 abutting against the limiting inserting rod 31.

[0040] Furthermore, a fastener is installed at the port of the sliding groove 34 to limit the outward movement of the sliding plate 35, so as to ensure that the sliding plate 35 will not accidentally slip out of the sliding groove 34.

[0041] By pressing the sliding plate 35 into the sliding groove 34, the sliding plate 35 can slide into the sliding groove 34 to drive the engaging tooth 36 to abut against the second side wall 382 of the through hole 38 and rotate away from the inserting rod 31, that is, the engaging tooth 36 is driven to rotate by the pressing action of the second side wall 382 on the engaging tooth 36, and then the engaging tooth 36 can rotate and move away from the inserting rod 31, so that one end of the engaging tooth 36 originally passing through the through hole 38 gradually retracts into the through hole 38 (refer to Figure 6 shown).

[0042] At this time, the inserting rod 31 can move away from and disengage from the insertion hole 22, and then the mounting plate 3 can be moved downward to compress the buffer spring 4 between the bottom cylinder 1 and the mounting plate 3 to adjust the damping force of the shock absorber. After the adjustment is completed, the inserting rod 31 is inserted into the corresponding insertion hole 22 below to lock and fix the mounting plate 3 to ensure the reliability of the shock absorber during use.

[0043] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shock absorber with adjustable spacing, comprising a bottom cylinder (1) and a mounting plate (3) arranged oppositely, a buffer spring (4) is provided between the bottom cylinder (1) and the mounting plate (3), a piston rod (2) extending into the bottom cylinder (1) is provided on the mounting plate (3), and it is characterized in that: A plurality of jacks (22) are provided on the piston rod (2) and are distributed along its length direction. An insertion rod (31) inserted into the jacks (22) and a rotatably mounted locking tooth (36) are provided on the mounting plate (3). One end of the locking tooth (36) abuts against the insertion rod (31), and the locking tooth (36) can rotate and move away from the insertion rod (31).

2. The shock absorber with adjustable spacing according to claim 1, characterized in that: A sliding groove (34) is provided on the mounting plate (3). A through hole (38) penetrating the mounting plate (3) upward is provided in the sliding groove (34). A sliding plate (35) is slidably arranged in the sliding groove (34). The locking tooth (36) is rotatably mounted on the sliding plate (35) and penetrates through the through hole (38) upward. One end of the locking tooth (36) penetrating through the through hole (38) abuts against the insertion rod (31).

3. The shock absorber with adjustable spacing according to claim 2, characterized in that: An abutting groove (32) corresponding to the position of the locking tooth (36) is provided on the insertion rod (31). A torsion spring (37) is arranged on the sliding plate (35). The torsion spring (37) drives the locking tooth (36) to rotate and abut against the abutting surface (321) of the abutting groove (32).

4. The shock absorber with adjustable spacing according to claim 2, wherein: A first spring (33) is arranged on the insertion rod (31). The first spring (33) abuts against one end of the locking tooth (36) penetrating through the through hole (38) through the insertion rod (31).

5. A shock absorber with adjustable spacing according to claim 2, characterized in that: A second spring (39) is arranged in the sliding groove (34). The second spring (39) abuts against the sliding plate (35) and pushes the locking tooth (36) to abut against the first side wall (381) of the through hole (38).

6. The shock absorber with adjustable spacing according to claim 2, characterized in that: The sliding plate (35) can slide into the sliding groove (34) to drive the locking tooth (36) to abut against the second side wall (382) of the through hole (38) and rotate away from the insertion rod (31).

7. The shock absorber with adjustable spacing according to claim 2, characterized in that: A fastener is installed at the port of the sliding groove (34).

8. The shock absorber with adjustable spacing according to claim 1, characterized in that: A buffer cavity (11) is provided inside the bottom cylinder (1). A bottom plate (12) for closing the buffer cavity (11) is installed on the bottom cylinder (1). A partition plate (21) is arranged on a section of the piston rod (2) extending into the buffer cavity (11). A flow hole (211) is provided on the partition plate (21).

9. The shock absorber with adjustable spacing according to claim 8, characterized in that: A clamping plate (14) is provided on the bottom plate (12). A sealing ring (13) is arranged between the bottom plate (12) and the clamping plate (14). The sealing ring (13) abuts against the outer circumference of the piston rod (2).

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