Closed-type metal damper

Abstract

The utility model relates to metal damping technical field discloses a kind of closed metal shock absorber, including shell, the inner wall sliding connection of shell has damping bottom cover, the inner wall sliding connection of damping bottom cover has telescopic column, the inner wall of telescopic column is equipped with rotary groove, the inner wall sliding connection of rotary groove has cam, the outer wall fixed connection of cam has ratchet wheel, the inner wall of ratchet wheel engages and is connected with pawl, the inner wall rotationally connected with rotating column of pawl, the inner wall fixed connection of cam has rotating shaft, the outer wall fixed connection of rotating shaft has steering wheel, the bottom of shell is fixedly connected with mounting mechanism, and mounting mechanism is used to install device and can realize the splicing of modularization.In the utility model, damping bottom cover moves up and down along shell, its inner wall sliding connection telescopic column is used for orientation, then through the mutual cooperation between subsequent parts, and then adjust the size of shock absorption damping, pawl is rotated by rotating column and realizes rotation limit, prevents deviation after adjustment, and ensures that shock absorption state is stable.

Description

Technical Field

[0001] This utility model relates to the field of metal vibration damping technology, and in particular to a closed-type metal vibration damper. Background Technology

[0002] Enclosed metal shock absorbers play a crucial role in the operation of electromechanical equipment and transportation vehicles. They are used to absorb and buffer the vibration energy generated during equipment operation, reduce the transmission of vibration to the equipment body and surrounding components, effectively control the vibration amplitude, and avoid vibration-induced component loosening, performance degradation, and noise pollution. This ensures long-term stable operation of the equipment, extends its service life, and improves the comfort of personnel operating and riding. Enclosed metal shock absorbers are widely used in the vibration reduction of power systems and seats in ships and off-road vehicles under complex operating conditions, as well as in vibration protection scenarios for precision instruments.

[0003] When absorbing and buffering the vibration energy generated during equipment operation, weakening the transmission of vibration to the equipment body and surrounding components, effectively controlling the vibration amplitude, and avoiding component loosening, performance degradation, and noise pollution caused by vibration, enclosed metal vibration dampers are required. Existing enclosed metal vibration dampers mostly adopt an integrated welded shell and a single metal spring core structure, which cannot adapt to the elastic damping requirements of different operating environments. This makes it easy to require separate design of shell welding molds and spring core pressing molds for different damping requirements during production. The high cost of mold development and maintenance will significantly increase the production cost. Moreover, the single spring core is prone to excessive deformation under complex working conditions due to damping mismatch, accelerating metal fatigue, resulting in reduced product quality and shortened service life. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a closed-type metal shock absorber, which aims to improve the problem that the existing technology cannot adapt to the elastic damping requirements in different environments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a closed metal shock absorber, comprising a housing, a damping bottom cover slidably connected to the inner wall of the housing, a telescopic column slidably connected to the inner wall of the damping bottom cover, a rotating groove formed on the inner wall of the telescopic column, a cam slidably connected to the inner wall of the rotating groove, a ratchet fixedly connected to the outer wall of the cam, a pawl engaged with the inner wall of the ratchet, a rotating column rotatably connected to the inner wall of the pawl, a rotating shaft fixedly connected to the inner wall of the cam, a handle fixedly connected to the outer wall of the rotating shaft, and an installation mechanism fixedly connected to the bottom of the housing, the installation mechanism being used to install the device and enabling modular splicing.

[0006] As a further description of the above technical solution:

[0007] The mounting mechanism includes a fixing block, the top of which is fixedly connected to the bottom of the outer shell. A latch is fixedly connected to the inner wall of the fixing block. A mounting plate is slidably connected to the outer wall of the fixing block. A positioning groove and a slot are formed on the inner wall of the mounting plate. Multiple first pins are slidably connected to the inner wall of the mounting plate. Positioning protrusions are fixedly connected to the outer walls of the multiple first pins. A sliding groove is formed on the inner wall of the latch. A knob is fixedly connected to the far end of each of the multiple first pins. A first spring is slidably connected to the outer wall of each first pin.

[0008] As a further description of the above technical solution:

[0009] A fixing post is fixedly connected to the front side of the throttle, and a limit post is fixedly connected to the front side of the fixing post.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the limiting post is rotatably connected to a second pin, and the outer wall of the second pin is rotatably connected to a drive rod.

[0012] As a further description of the above technical solution:

[0013] A limit groove is formed on the inner wall of the drive rod, and a second spring is fixedly connected to the front side of the drive rod.

[0014] As a further description of the above technical solution:

[0015] A handle is fixedly connected to the outer wall of the second spring, and the rear side of the handle is slidably connected to the front side of the throttle.

[0016] As a further description of the above technical solution:

[0017] The top of the outer shell is fixedly connected to a top cover, and the inner wall of the top cover is provided with a mating groove.

[0018] As a further description of the above technical solution:

[0019] A limit block is fixedly connected to the outer wall of the rotating column, and a lever is fixedly connected to the outer wall of the limit block.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the damping bottom cover moves up and down along the outer shell, and the telescopic column slidably connected to its inner wall is used for guidance. The two together form a basic shock absorption structure to buffer external vibration. When adjusting the damping, the handle is turned, and the rotating shaft fixed to the handle drives the cam to rotate synchronously. The cam slides in the rotating groove on the inner wall of the telescopic column. During the rotation, it pushes the damping bottom cover to change position, thereby adjusting the size of the shock absorption damping. The ratchet on the outer wall of the cam engages with the pawl. The pawl achieves rotation limit through the rotating column, locking the cam position and preventing displacement after damping adjustment. This ensures stable shock absorption, improves product quality, and increases service life.

[0022] 2. In this utility model, during installation, first insert the fixing block fixed to the bottom of the outer shell into the positioning groove on the inner wall of the mounting plate, so that the fixing block slides along the outer wall of the mounting plate. At the same time, the latch on the inner wall of the fixing block engages with the slot of the mounting plate. Rotate the fixing block to complete the pre-fixing. Then, turn the knob to drive the first pin to slide on the inner wall of the mounting plate. The positioning protrusion on the outer wall of the first pin is embedded in the sliding groove of the latch to achieve precise locking. The first spring on the outer wall of the first pin will generate a restoring force to maintain the locked state of the first pin and prevent loosening. Multiple sets can be used to achieve modular splicing of multiple shock absorbers. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a closed-type metal shock absorber proposed in this utility model;

[0024] Figure 2 This is a cross-sectional view of the outer shell of a closed-type metal shock absorber proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of the local structure at point A in the image;

[0026] Figure 4 This is a cross-sectional view of the handle of a closed-type metal shock absorber proposed in this utility model;

[0027] Figure 5 This is a partial structural exploded view of a closed-type metal shock absorber proposed in this utility model.

[0028] Legend:

[0029] 1. Outer shell; 2. Mounting mechanism; 201. Fixing block; 202. Lock; 203. Mounting plate; 204. Positioning groove; 205. Slot; 206. First pin; 207. Positioning protrusion; 208. Slide groove; 209. Knob; 210. First spring; 3. Damping bottom cover; 4. Telescopic column; 5. Rotating groove; 6. Cam; 7. Ratchet; 8. Pawl; 9. Rotating column; 10. Shaft; 11. Turning handle; 12. Fixing column; 13. Limiting column; 14. Second pin; 15. Drive rod; 16. Limiting groove; 17. Second spring; 18. Grip; 19. Top cover; 20. Connecting groove; 21. Limiting block; 22. Lever. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides: a closed metal shock absorber, including a shell 1, a damping bottom cover 3 slidably connected to the inner wall of the shell 1, a telescopic column 4 slidably connected to the inner wall of the damping bottom cover 3, a rotating groove 5 opened on the inner wall of the telescopic column 4, a cam 6 slidably connected to the inner wall of the rotating groove 5, a ratchet 7 fixedly connected to the outer wall of the cam 6, a pawl 8 engagedly connected to the inner wall of the ratchet 7, a rotating column 9 rotatably connected to the inner wall of the pawl 8, a rotating shaft 10 fixedly connected to the inner wall of the cam 6, a handle 11 fixedly connected to the outer wall of the rotating shaft 10, and an installation mechanism 2 fixedly connected to the bottom of the shell 1. The installation mechanism 2 is used to install the device and can realize modular splicing.

[0032] Specifically, the outer shell 1 serves as the core protection and support component. Its inner wall is slidably connected to the damping bottom cover 3. The damping bottom cover 3 can slide up and down along the inner wall of the outer shell 1, working in conjunction with the telescopic column 4 and other components to achieve basic shock absorption and buffering. The rotating groove 5 opened on the inner wall of the telescopic column 4 provides the cam 6 with a space for movement. The cam 6 can slide in the rotating groove 5. When the handle 11 is turned, the rotating shaft 10 fixedly connected to the handle 11 will drive the cam 6 to rotate synchronously. During the rotation of the cam 6, it can push the damping bottom cover 3 to move up and down, thereby adjusting the size of the shock absorption damping. At the same time, the ratchet 7 fixed on the outer wall of the cam 6 engages with the pawl 8. The pawl 8 achieves rotation limit through the rotating column 9, which can lock the position of the cam 6 and prevent it from shifting on its own after the damping is adjusted, ensuring the stability of the damping state. In addition, the mounting mechanism 2 fixed at the bottom of the outer shell 1 can not only securely install the device in the target position, but also realize the modular splicing of multiple shock absorbers, flexibly adapting to different installation spaces and equipment shock absorption needs, improving the versatility and ease of assembly of the device.

[0033] Please see the appendix Figure 1 and attached Figure 5 The mounting mechanism 2 includes a fixing block 201, the top of which is fixedly connected to the bottom of the outer shell 1. A latch 202 is fixedly connected to the inner wall of the fixing block 201. An mounting plate 203 is slidably connected to the outer wall of the fixing block 201. A positioning groove 204 and a slot 205 are provided on the inner wall of the mounting plate 203. A plurality of first pins 206 are slidably connected to the inner wall of the mounting plate 203. A positioning protrusion 207 is fixedly connected to the outer wall of each of the plurality of first pins 206. A sliding groove 208 is provided on the inner wall of the latch 202. A knob 209 is fixedly connected to the far end of each of the plurality of first pins 206. A first spring 210 is slidably connected to the outer wall of the first pin 206.

[0034] Specifically, during installation, the fixing block 201 serves as the connecting core, with its top fixed to the bottom of the outer shell 1, providing a support base for the installation mechanism 2. The locking buckle 202 fixed on its inner wall can cooperate with the mounting plate 203 to achieve initial positioning of the shock absorber and the mounting surface. Then, the fixing block 201 is inserted into the positioning groove 204 on the inner wall of the mounting plate 203. After the locking buckle 202 is engaged in the slot 205, it is rotated to complete the pre-fixing. Then, turning the knob 209 can drive the first pin 206 to slide on the inner wall of the mounting plate 203. The positioning protrusion 207 on the outer wall of the first pin 206 will be embedded in the sliding groove 208 on the inner wall of the locking buckle 202 to further lock the position of the fixing block 201 and the mounting plate 203 and prevent displacement. In addition, the first spring 210 slidably connected to the outer wall of the first pin 206 can provide a restoring force to ensure that the first pin 206 always remains locked, realizing the modular combination of multiple shock absorbers and flexibly adapting to different installation scenario requirements.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 A fixed post 12 is fixedly connected to the front side of the throttle 11, a limit post 13 is fixedly connected to the front side of the fixed post 12, a limit groove 16 is opened on the inner wall of the drive rod 15, a second spring 17 is fixedly connected to the front side of the drive rod 15, a second pin 14 is rotatably connected to the inner wall of the limit post 13, and the drive rod 15 is rotatably connected to the outer wall of the second pin 14.

[0036] Specifically, the fixed post 12 fixed to the front of the throttle 11 provides an installation base for the limiting post 13. The second pin 14 rotatably connected to the inner wall of the limiting post 13 can form a movable connection with the drive rod 15. The second pin 14 slides along the limiting groove 16 on the inner wall of the drive rod 15 and can be pulled out and rotated to complete folding and storage, reducing the space occupied. The second spring 17 fixed to the front of the drive rod 15 can provide elastic restoring force for connecting the subsequent grip 18 to complete the restoring. At the same time, the cooperation between the second pin 14 and the limiting groove 16 can push the grip 18 in after folding, extend the drive rod 15, and lock it at the edge of the fixed post 12, preventing the grip 18 from unfolding during operation and affecting the normal operation of the internal parts.

[0037] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 5 A handle 18 is fixedly connected to the outer wall of the second spring 17. The rear side of the handle 18 is slidably connected to the front side of the throttle 11. A limit block 21 is fixedly connected to the outer wall of the rotating column 9. A lever 22 is fixedly connected to the outer wall of the limit block 21. A top cover 19 is fixedly connected to the top of the outer shell 1. A mating groove 20 is opened on the inner wall of the top cover 19.

[0038] Specifically, the handle 18 fixed to the outer wall of the second spring 17 is slidably connected to the front of the throttle 11 at the rear. This allows the operator to easily grip the handle 11 to adjust the damping, and the elasticity of the second spring 17 adapts to the sliding of the handle 18, improving operating comfort. The limiting block 21 fixed to the outer wall of the rotating column 9 restricts the rotation position of the pawl 8, preventing the pawl 8 from shifting and affecting its engagement with the ratchet 7. The lever 22 on the outer wall of the limiting block 21 allows for manual adjustment of the pawl 8 position, unlocking the ratchet 7 to readjust the damping. The top cover 19 fixed to the top of the outer shell 1 protects the internal components from dust and impurities. The mating groove 20 on the inner wall of the top cover 19 can precisely mate with the bottom of the shock absorber, solving the problem of poor installation compatibility in complex environments.

[0039] Working principle: The outer shell 1 provides protection and support for the whole. The damping bottom cover 3, which is slidably connected to the inner wall of the outer shell 1, can move up and down along the outer shell 1. The telescopic column 4, which is slidably connected to the inner wall of the damping bottom cover 3, moves in conjunction with it. The two work together to form a basic shock absorption structure to buffer external vibrations. When adjusting the damping, the handle 11 is turned. The rotating shaft 10, which is fixed to the handle 11, drives the cam 6 to rotate synchronously. The cam 6 slides in the rotating groove 5 on the inner wall of the telescopic column 4. During the rotation, it pushes the damping bottom cover 3 to change its position, thereby adjusting the damping size. At the same time, the ratchet 7 on the outer wall of the cam 6 engages with the pawl 8. The pawl 8 achieves rotation limit through the rotating column 9, locking the position of the cam 6 to prevent displacement after damping adjustment and ensure stable shock absorption.

[0040] During installation, first, insert the fixing block 201, which is fixed to the bottom of the outer casing 1, into the positioning groove 204 on the inner wall of the mounting plate 203, so that the fixing block 201 slides along the outer wall of the mounting plate 203. At the same time, the latch 202 on the inner wall of the fixing block 201 engages with the slot 205 of the mounting plate 203. Rotate the fixing block 201 to complete the pre-fixing. Then, turn the knob 209 to drive the first pin 206 to slide on the inner wall of the mounting plate 203. The positioning protrusion 207 on the outer wall of the first pin 206 is embedded in the sliding groove 208 of the latch 202 to achieve precise locking. The first spring 210 on the outer wall of the first pin 206 will generate a restoring force to maintain the locked state of the first pin 206 and prevent loosening. Multiple sets can be used to achieve modular splicing of multiple shock absorbers.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A closed-type metal shock absorber, comprising a housing (1), characterized in that: The inner wall of the outer shell (1) is slidably connected to a damping bottom cover (3), the inner wall of the damping bottom cover (3) is slidably connected to a telescopic column (4), the inner wall of the telescopic column (4) is provided with a rotating groove (5), the inner wall of the rotating groove (5) is slidably connected to a cam (6), the outer wall of the cam (6) is fixedly connected to a ratchet (7), the inner wall of the ratchet (7) is engaged with a pawl (8), the inner wall of the pawl (8) is rotatably connected to a rotating column (9), the inner wall of the cam (6) is fixedly connected to a rotating shaft (10), the outer wall of the rotating shaft (10) is fixedly connected to a throttle (11), and the bottom of the outer shell (1) is fixedly connected to an installation mechanism (2). The installation mechanism (2) is used to install the device and can realize modular splicing.

2. The enclosed metal shock absorber according to claim 1, characterized in that: The installation mechanism (2) includes a fixing block (201), the top of which is fixedly connected to the bottom of the outer shell (1). A latch (202) is fixedly connected to the inner wall of the fixing block (201). An installation plate (203) is slidably connected to the outer wall of the fixing block (201). A positioning groove (204) is provided on the inner wall of the installation plate (203). A slot (205) is provided on the inner wall of the installation plate (203). A plurality of first pins (206) are slidably connected to the inner wall of the installation plate (203). A positioning protrusion (207) is fixedly connected to the outer wall of each of the plurality of first pins (206). A sliding groove (208) is provided on the inner wall of the latch (202). A knob (209) is fixedly connected to the far end of each of the plurality of first pins (206). A first spring (210) is slidably connected to the outer wall of the first pin (206).

3. A closed-type metal shock absorber according to claim 1, characterized in that: A fixing post (12) is fixedly connected to the front side of the throttle (11), and a limit post (13) is fixedly connected to the front side of the fixing post (12).

4. A closed-type metal shock absorber according to claim 3, characterized in that: The inner wall of the limiting post (13) is rotatably connected to a second pin (14), and the outer wall of the second pin (14) is rotatably connected to a drive rod (15).

5. A closed-type metal shock absorber according to claim 4, characterized in that: The inner wall of the drive rod (15) has a limiting groove (16), and a second spring (17) is fixedly connected to the front side of the drive rod (15).

6. A closed-type metal shock absorber according to claim 5, characterized in that: A handle (18) is fixedly connected to the outer wall of the second spring (17), and the rear side of the handle (18) is slidably connected to the front side of the throttle (11).

7. A closed-type metal shock absorber according to claim 1, characterized in that: The top of the outer shell (1) is fixedly connected to a top cover (19), and the inner wall of the top cover (19) is provided with a mating groove (20).

8. A closed-type metal shock absorber according to claim 1, characterized in that: The outer wall of the rotating column (9) is fixedly connected to a limiting block (21), and the outer wall of the limiting block (21) is fixedly connected to a lever (22).

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