CN216812642U

CN216812642U - Nitrogen spring shock absorber

Info

Publication number: CN216812642U
Application number: CN202220356852.4U
Authority: CN
Inventors: 王鹏
Original assignee: Changzhou Dongli Machinery Co ltd
Current assignee: Changzhou Dongli Machinery Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-06-24
Anticipated expiration: 2032-02-22

Abstract

The utility model discloses a nitrogen spring shock absorber which comprises a fixed cylinder, wherein the inside of the fixed cylinder is rotatably connected with a rotating block, the rotating block is provided with an annular groove, the inside of the annular groove is connected with a convex block in a sliding manner, the convex block is fixedly connected with the fixed cylinder, the rotating block is fixedly connected with a screw rod, the screw rod is in contact with the fixed cylinder, the outer side of the screw rod is connected with a threaded sleeve through threads, the threaded sleeve is in contact with the fixed cylinder, the inside of the fixed cylinder is fixedly connected with a fixed rod, and the outer side of the fixed rod is sleeved with a sliding plate in a sliding manner. According to the utility model, the threaded connection between the screw rod and the threaded sleeve is designed, so that the threaded sleeve can be in threaded motion by the rotation of the screw rod, the threaded sleeve can drive the sliding plate to move, and the height of the sliding plate can be adjusted, so that the displacement length of the connecting cylinder can be adjusted, the compression degree of the initial state of nitrogen can be changed, and the hardness degree of the nitrogen spring can be changed.

Description

Nitrogen spring shock absorber

Technical Field

The utility model relates to the technical field of nitrogen spring shock absorption, in particular to a nitrogen spring shock absorber.

Background

The nitrogen spring is a novel elastic component using high-pressure nitrogen as a working medium, has small volume, large elasticity, long stroke, stable work, precise manufacture, long service life (one million times), gentle elasticity curve, no need of pre-tightening and the like, and has the work which is difficult to complete by conventional elastic components such as metal springs, rubbers, air cushions and the like. Current nitrogen spring damper is when using, can't adjust the soft or hard degree of shock attenuation, and absorbing removal is not steady enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a nitrogen spring damper, which solves the problem that the soft and hard damping degree cannot be adjusted and also solves the problem that the damping movement is not stable enough.

In order to achieve the purpose, the utility model provides the following technical scheme: a nitrogen spring shock absorber comprises a fixed cylinder, wherein a rotating block is rotatably connected to the inside of the fixed cylinder, an annular groove is formed in the rotating block, a convex block is slidably connected to the inside of the annular groove and fixedly connected with the fixed cylinder, a screw rod is fixedly connected to the rotating block and is in contact with the fixed cylinder, a screw sleeve is connected to the outer side of the screw rod through threads and is in contact with the fixed cylinder, a fixed rod is fixedly connected to the inside of the fixed cylinder, a sliding plate is slidably sleeved on the outer side of the fixed rod and is fixedly connected with the screw sleeve, the sliding plate is in contact with the screw rod, a lower sealing ring is fixedly connected to the sliding plate and is in contact with the inner wall of the fixed cylinder, a fixed block is fixedly connected to the fixed rod, an upper sealing ring is fixedly connected to the fixed block, and a connecting cylinder is in contact with the upper sealing ring, the fixed cover of inside fixedly connected with of connecting cylinder, fixed cover and fixed block sliding connection, the outside of fixed cover is provided with the spring, fixedly connected with guide arm on the connecting cylinder, the guide pin bushing has been cup jointed in the outside slip of guide arm, guide pin bushing and solid fixed cylinder fixed connection, there is stop screw inside the solid fixed cylinder through threaded connection, stop screw and connecting cylinder sliding connection, the inner wall contact of connecting cylinder and solid fixed cylinder.

Preferably, a rotating ring is fixedly connected to the rotating block, and the rotating ring is in contact with the fixed cylinder. Through the design of the rotating ring, the rotating ring can drive the rotating block to rotate.

Preferably, a valve core is arranged on the connecting cylinder and communicated with the fixing sleeve. The valve core is designed to inflate and deflate the fixed sleeve.

Preferably, one end of the spring is in contact with the connecting cylinder, and the other end of the spring is in contact with the fixed block. By designing the spring such that the force of the spring acts on the connecting cylinder.

Preferably, the guide sleeve is provided with a guide groove, and the guide groove is connected with a guide rod in a sliding manner. The guide groove is designed to enable the guide rod to slide in the guide groove.

Preferably, a limiting groove is formed in the connecting cylinder, and a limiting screw is connected to the inside of the limiting groove in a sliding mode. Through the insertion connection of the designed limiting groove and the limiting screw, the connecting cylinder and the fixing cylinder can be fixed, and the limiting screw can slide relative to the limiting groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the threaded connection between the screw rod and the threaded sleeve is designed, so that the threaded sleeve can be in threaded motion by the rotation of the screw rod, the threaded sleeve can drive the sliding plate to move, and the height of the sliding plate can be adjusted, so that the displacement length of the connecting cylinder can be adjusted, the compression degree of the initial state of nitrogen can be changed, and the hardness degree of the nitrogen spring can be changed.

2. According to the utility model, through designing the sliding connection of the limiting screw and the limiting groove, the connecting cylinder and the fixed cylinder can be installed and fixed, the movement of the connecting cylinder can be guided, and meanwhile, through the sliding connection of the guide rod and the guide sleeve, the connecting cylinder can be further guided, so that the movement of the connecting cylinder is more stable, and the using effect is better.

Drawings

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is a front cross-sectional view of the utility model of FIG. 1;

FIG. 3 is an enlarged view taken at A of FIG. 2 according to the present invention;

fig. 4 is an enlarged view of fig. 2 at B.

In the figure: 1. a fixed cylinder; 3. rotating the block; 4. an annular groove; 5. a bump; 6. rotating the ring; 7. a screw; 8. a threaded sleeve; 9. fixing the rod; 10. a slide plate; 11. a lower seal ring; 12. a fixed block; 13. an upper sealing ring; 14. a connecting cylinder; 15. fixing a sleeve; 16. a valve core; 17. a spring; 18. a guide bar; 19. a guide sleeve; 20. a guide groove; 21. a limit screw; 22. a limiting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, a nitrogen spring shock absorber, including a fixed cylinder 1, the inside of a fixed cylinder 1 is rotated and is connected with turning block 3, fixedly connected with change 6 on the turning block 3, change 6 and the contact of a fixed cylinder 1, through designing change 6, make change 6 can drive turning block 3 and rotate, ring channel 4 has been seted up on the turning block 3, the inside sliding connection of ring channel 4 has lug 5, lug 5 and fixed cylinder 1 fixed connection, fixedly connected with screw 7 on the turning block 3, screw 7 and the contact of a fixed cylinder 1, there is swivel nut 8 in the outside of screw 7 through threaded connection. By designing the threaded connection between the screw rod 7 and the threaded sleeve 8, the threaded sleeve 8 can perform threaded motion by the rotation of the screw rod 7.

Referring to fig. 1, 2, 3 and 4, a screw sleeve 8 is in contact with a fixed cylinder 1, a fixed rod 9 is fixedly connected inside the fixed cylinder 1, a sliding plate 10 is slidably sleeved outside the fixed rod 9, the sliding plate 10 is fixedly connected with the screw sleeve 8, the sliding plate 10 is in contact with a screw 7, a lower sealing ring 11 is fixedly connected on the sliding plate 10, the lower sealing ring 11 is in contact with the inner wall of the fixed cylinder 1, a fixed block 12 is fixedly connected on the fixed rod 9, an upper sealing ring 13 is fixedly connected on the fixed block 12, a connecting cylinder 14 is in contact with the upper sealing ring 13, a fixed sleeve 15 is fixedly connected inside the connecting cylinder 14, a valve core 16 is arranged on the connecting cylinder 14, the valve core 16 is communicated with the fixed sleeve 15, and the valve core 16 is designed to inflate and deflate the fixed sleeve 15.

Referring to fig. 1, 2, 3 and 4, a fixing sleeve 15 is slidably connected to a fixing block 12, a spring 17 is disposed outside the fixing sleeve 15, one end of the spring 17 contacts with a connecting cylinder 14, the other end of the spring 17 contacts with the fixing block 12, the spring 17 is designed to enable an acting force of the spring 17 to act on the connecting cylinder 14, a guide rod 18 is fixedly connected to the connecting cylinder 14, a guide sleeve 19 is slidably sleeved outside the guide rod 18, a guide groove 20 is formed in the guide sleeve 19, the guide rod 18 is slidably connected to the inside of the guide groove 20, and the guide rod 18 can slide in the guide groove 20 by designing the guide groove 20.

Referring to fig. 1, 2, 3, and 4, the guide sleeve 19 is fixedly connected to the fixed cylinder 1, the fixed cylinder 1 is internally connected to a limit screw 21 through a thread, the limit screw 21 is slidably connected to the connecting cylinder 14, a limit groove 22 is formed in the connecting cylinder 14, the limit screw 21 is slidably connected to the inside of the limit groove 22, the connecting cylinder 14 and the fixed cylinder 1 can be fixed by inserting the limit groove 22 into the limit screw 21, the limit screw 21 and the limit groove 22 can slide relative to each other, and the connecting cylinder 14 contacts with the inner wall of the fixed cylinder 1.

The specific implementation process of the utility model is as follows: during the use, when needs are adjusted nitrogen spring, rotate swivel 6, swivel 6 drives the turning block 3 and rotates, turning block 3 drives screw rod 7 and rotates, threaded connection through screw rod 7 and swivel nut 8, make swivel nut 8 be screw motion on screw rod 7, swivel nut 8 drives slide 10 and slides along dead lever 9, can adjust the height of slide 10, thereby can adjust the displacement length of connecting cylinder 14, can change nitrogen gas initial state's compression degree, thereby can change nitrogen spring's soft or hard degree. Through the sliding connection of stop screw 21 and spacing groove 22, can be fixed with connecting cylinder 14 and the installation of solid fixed cylinder 1, and can lead to the removal of connecting cylinder 14, simultaneously through the sliding connection of guide arm 18 and guide pin bushing 19, can further lead to connecting cylinder 14 for the removal of connecting cylinder 14 is more steady, and the result of use is better.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a nitrogen gas spring damper, includes fixed cylinder (1), its characterized in that: the inner part of the fixed cylinder (1) is rotatably connected with a rotating block (3), an annular groove (4) is formed in the rotating block (3), a convex block (5) is connected to the inner part of the annular groove (4) in a sliding manner, the convex block (5) is fixedly connected with the fixed cylinder (1), a screw rod (7) is fixedly connected to the rotating block (3), the screw rod (7) is in contact with the fixed cylinder (1), the outer side of the screw rod (7) is connected with a threaded sleeve (8) through threads, the threaded sleeve (8) is in contact with the fixed cylinder (1), a fixed rod (9) is fixedly connected to the inner part of the fixed cylinder (1), a sliding plate (10) is sleeved on the outer side of the fixed rod (9) in a sliding manner, the sliding plate (10) is fixedly connected with the threaded sleeve (8), the sliding plate (10) is in contact with the screw rod (7), and a lower sealing ring (11) is fixedly connected to the sliding plate (10), the lower sealing ring (11) is contacted with the inner wall of the fixed cylinder (1), the fixed rod (9) is fixedly connected with a fixed block (12), an upper sealing ring (13) is fixedly connected to the fixing block (12), a connecting cylinder (14) is contacted with the upper sealing ring (13), a fixed sleeve (15) is fixedly connected inside the connecting cylinder (14), the fixed sleeve (15) is connected with the fixed block (12) in a sliding way, a spring (17) is arranged on the outer side of the fixed sleeve (15), a guide rod (18) is fixedly connected to the connecting cylinder (14), a guide sleeve (19) is sleeved outside the guide rod (18) in a sliding manner, the guide sleeve (19) is fixedly connected with the fixed cylinder (1), the inside of the fixed cylinder (1) is connected with a limit screw (21) through threads, the limiting screw (21) is connected with the connecting cylinder (14) in a sliding mode, and the connecting cylinder (14) is in contact with the inner wall of the fixed cylinder (1).

2. The nitrogen spring damper of claim 1, wherein: the rotating block (3) is fixedly connected with a rotating ring (6), and the rotating ring (6) is in contact with the fixed cylinder (1).

3. The nitrogen spring damper of claim 1, wherein: the connecting cylinder (14) is provided with a valve core (16), and the valve core (16) is communicated with the fixing sleeve (15).

4. The nitrogen spring damper of claim 1, wherein: one end of the spring (17) is in contact with the connecting cylinder (14), and the other end of the spring (17) is in contact with the fixed block (12).

5. The nitrogen spring damper of claim 1, wherein: a guide groove (20) is formed in the guide sleeve (19), and a guide rod (18) is connected to the inside of the guide groove (20) in a sliding mode.

6. The nitrogen spring damper of claim 1, wherein: a limiting groove (22) is formed in the connecting cylinder (14), and a limiting screw (21) is connected to the inside of the limiting groove (22) in a sliding mode.