CN219734052U - Over-travel explosion-proof nitrogen spring - Google Patents
Over-travel explosion-proof nitrogen spring Download PDFInfo
- Publication number
- CN219734052U CN219734052U CN202223373609.2U CN202223373609U CN219734052U CN 219734052 U CN219734052 U CN 219734052U CN 202223373609 U CN202223373609 U CN 202223373609U CN 219734052 U CN219734052 U CN 219734052U
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- Prior art keywords
- cylinder body
- nitrogen
- spring
- travel
- explosion
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 45
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 13
- 238000004880 explosion Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000001739 rebound effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
- Compressor (AREA)
Abstract
The utility model discloses an over-travel explosion-proof nitrogen spring, which comprises a cylinder body, a piston mechanism and a pressure release mechanism, wherein a cavity is formed in the cylinder body, the piston mechanism is arranged in the cavity, the pressure release mechanism comprises an elastic component and an exhaust component, the elastic component is used for realizing pressure maintaining of the nitrogen spring, the exhaust component is used for discharging nitrogen, a state that a limiting rod is inserted into the inside of the shell is maintained through the spring, the exhaust hole is blocked by the shell, the problem of nitrogen leakage is avoided, when a piston rod is excessively pressed into the cylinder body, the air pressure in the cylinder body is increased, the pushing force of the nitrogen pushes the limiting rod, the exhaust hole is not blocked by the shell any more, the nitrogen is discharged from the cylinder body, the nitrogen is timely discharged into the air by a stabilizing groove, the reaction force of the high-pressure nitrogen is prevented from pushing the cylinder body to fly, the nitrogen spring has an over-travel pressure release function, the cylinder body is prevented from being broken, and the use is safer.
Description
Technical Field
The utility model relates to the technical field of nitrogen springs, in particular to an over-travel explosion-proof nitrogen spring.
Background
The nitrogen spring is a novel elastic component taking high-pressure nitrogen as a working medium, and has inherent height and standard use stroke in the use process, when the die exceeds the use stroke of the nitrogen spring under the condition of misoperation or failure, the nitrogen spring is easily damaged and even the explosion phenomenon occurs due to the fact that the nitrogen spring is filled with high-pressure nitrogen, and high safety risk exists.
Therefore, the pressure release valves are arranged at the bottoms of the existing nitrogen springs, the triggering of the pressure release valves is sensitive, the false triggering problem is easy to occur, the elasticity of the nitrogen springs is weakened, and when nitrogen leaks, high-pressure nitrogen injection easily causes the flying of the nitrogen springs, if the pressure release valves with high pressure resistance are used, the pressure release cannot be timely performed, the risk of cylinder explosion exists, and the explosion-proof function of the nitrogen springs is unstable.
Disclosure of Invention
The utility model aims to provide an over-travel explosion-proof nitrogen spring so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: an over-travel explosion-proof nitrogen spring comprises a cylinder body, wherein a cavity is formed in the cylinder body, and the inner wall of the cavity is smooth;
the piston mechanism is arranged in the cavity and slides in the cavity to realize rebound;
the pressure release mechanism comprises an elastic component and an exhaust component, wherein the elastic component is used for realizing pressure maintaining of a nitrogen spring, and the exhaust component is used for exhausting nitrogen and preventing the cylinder body from being damaged.
Further, the piston mechanism comprises a piston rod and a bushing sleeved on the surface of the piston rod, a clamp spring is sleeved on the surface of the bushing, the clamp spring is clamped on the inner wall of the cavity, the bushing is made of nylon, good wear resistance of the bushing is guaranteed, and the problem of air leakage is not easy to occur.
Further, the sealing ring is sleeved on the lower portion of the surface of the bushing, the sealing ring abuts against the inner wall of the cavity, the sealing ring is made of elastic materials, the sealing ring is ensured to have elasticity, and the tightness between the bushing and the cylinder body is improved.
Further, the elastic component includes the fixing base and installs at the inside casing of fixing base, and the casing is hollow setting, and the fixing base embedding cylinder body is inside, inside grafting of casing has the ejector pin, ejector pin and casing sliding connection, the ejector pin surface is equipped with the spacing ring, the spring has been cup jointed on the ejector pin surface, and spring one end supports the position ring, and the other end supports the casing, the ejector pin lower extreme is equipped with the gag lever post, the gag lever post lower extreme is equipped with leak protection head, ejector pin, gag lever post, leak protection head integrated into one piece.
Further, exhaust subassembly includes air cavity and discharge port and stable groove, the ejector pin is arranged in to the air cavity and inside the gag lever post, the discharge port is located the gag lever post lower part, the cylinder body lower surface edge is arranged in to stable groove, and the fixing base is in the same place with stable groove arrangement for nitrogen gas can in time be discharged.
Furthermore, the lower part of the surface of the cylinder body is provided with a mounting groove which is annular and is convenient for fixing the cylinder body.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the tightness between the piston rod and the cylinder body is improved through the bushing, the tightness between the bushing and the cylinder body is improved through the sealing ring, and the stability of the rebound force of the nitrogen spring is ensured;
the state that the spacing pole inserted inside the casing is kept through the spring, ensure that the discharge port is blocked by the casing, avoid the problem that nitrogen leakage appears, when the piston rod is excessively pressed into the cylinder body, the inside atmospheric pressure of cylinder body increases, the thrust top of nitrogen gas moves the spacing pole for the discharge port no longer is blocked by the casing, make nitrogen gas discharge in the cylinder body, the stable groove makes nitrogen gas in time discharge to the air, avoid the reaction force of high pressure nitrogen gas to promote the cylinder body to fly to penetrate, make the nitrogen gas spring have the function of overtravel pressure release, prevent that the cylinder body from breaking, it is safer to use.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a schematic view of the compressed piston rod of the present utility model;
FIG. 3 is a schematic view of the connection between the shell and the ejector rod according to the present utility model;
FIG. 4 is a schematic diagram of a structure of a connecting rod with an air outlet cavity according to the present utility model;
fig. 5 is a schematic structural view of the connection of the cylinder body and the stabilizing trough.
In the figure: 1. a cylinder; 2. a piston rod; 3. a bushing; 4. clamping springs; 5. a seal ring; 6. a fixing seat; 7. a housing; 8. a limit rod; 9. a leak-proof head; 10. a discharge hole; 11. a push rod; 12. a limiting ring; 13. a spring; 14. an air outlet cavity; 15. a stabilizing groove; 16. and a mounting groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: an over-travel explosion-proof nitrogen spring comprises a cylinder body 1, wherein a cavity is formed in the cylinder body 1, and the cavity contains nitrogen;
the piston mechanism is arranged in the cavity and has a rebound effect;
the pressure release mechanism comprises an elastic component and an exhaust component, wherein the elastic component is used for realizing pressure maintaining of the nitrogen spring, ensuring that the nitrogen spring cannot leak air in an allowable pressure range, and the exhaust component is used for exhausting nitrogen in time.
The piston mechanism comprises a piston rod 2 and a bushing 3 sleeved on the surface of the piston rod 2, the bushing 3 improves the tightness, the piston rod 2 is prevented from being rubbed with the support of the cylinder body 1, a clamp spring 4 is sleeved on the surface of the bushing 3, the clamp spring 4 is clamped on the inner wall of the cavity, and the clamp spring 4 improves the connection stability of the bushing 3 and the cylinder body 1.
The sealing ring 5 has been cup jointed to bush 3 surface lower part, sealing ring 5 supports at the cavity inner wall, prevents that nitrogen gas from revealing, prolongs the life of nitrogen spring.
The elastic component includes fixing base 6 and installs at the inside casing 7 of fixing base 6, and fixing base 6 is connected with cylinder body 1, the inside grafting of casing 7 has ejector pin 11, the ejector pin 11 surface is equipped with spacing ring 12, ejector pin 11 surface has cup jointed spring 13, and spacing ring 12 makes spring 13's elasticity applys on ejector pin 11, the ejector pin 11 lower extreme is equipped with gag lever post 8, gag lever post 8 lower extreme is equipped with leak protection head 9, and leak protection head 9 avoids gag lever post 8 to retract in the casing 7 completely.
The exhaust assembly comprises an air outlet cavity 14, an exhaust hole 10 and a stabilizing groove 15, wherein the air outlet cavity 14 is arranged in the ejector rod 11 and the limiting rod 8, the exhaust hole 10 is arranged at the lower part of the limiting rod 8, the stabilizing groove 15 is arranged at the edge of the lower surface of the cylinder body 1, and the air outlet cavity 14 is communicated with the exhaust hole 10.
The lower part of the surface of the cylinder body 1 is provided with the mounting groove 16, and when the cylinder body 1 is mounted, a screw is inserted into the mounting groove 16, so that the cylinder body 1 can be prevented from moving.
Specifically, during the use, when external force extrudees piston rod 2, piston rod 2 moves in to cylinder body 1, piston rod 2 compresses nitrogen gas, when piston rod 2 is excessively extruded, the thrust of nitrogen gas in cylinder body 1 is greater than the elasticity of spring 13, nitrogen gas enters into the chamber of giving vent to anger 14 in, and outwards promote gag lever post 8, the discharge port 10 on gag lever post 8 surface no longer is blocked by casing 7 this moment, make nitrogen gas go out through discharge port 10, high-pressure nitrogen gas in time releases the air along stabilizing slot 15, avoid nitrogen gas exhaust thrust back to promote cylinder body 1, prevent cylinder body 1 to fly, still have the effect that prevents cylinder body 1 burst.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (6)
1. An over-travel explosion-proof nitrogen spring, comprising:
the device comprises a cylinder body (1), wherein a cavity is formed in the cylinder body (1);
the piston mechanism is arranged inside the cavity;
the pressure release mechanism comprises an elastic component and an exhaust component, wherein the elastic component is used for realizing pressure maintaining of a nitrogen spring, and the exhaust component is used for exhausting nitrogen.
2. An over-travel explosion-proof nitrogen spring as recited in claim 1, wherein: the piston mechanism comprises a piston rod (2) and a bushing (3) sleeved on the surface of the piston rod (2), a clamp spring (4) is sleeved on the surface of the bushing (3), and the clamp spring (4) is clamped on the inner wall of the cavity.
3. An over-travel explosion-proof nitrogen spring as recited in claim 2, wherein: the lower part of the surface of the bushing (3) is sleeved with a sealing ring (5), and the sealing ring (5) is propped against the inner wall of the cavity.
4. An over-travel explosion-proof nitrogen spring as recited in claim 1, wherein: the elastic component includes fixing base (6) and installs at inside casing (7) of fixing base (6), inside grafting of casing (7) has ejector pin (11), ejector pin (11) surface is equipped with spacing ring (12), spring (13) have been cup jointed on ejector pin (11) surface, ejector pin (11) lower extreme is equipped with gag lever post (8), gag lever post (8) lower extreme is equipped with leak protection head (9).
5. An over-travel explosion-proof nitrogen spring as recited in claim 4, wherein: the exhaust assembly comprises an air outlet cavity (14), an exhaust hole (10) and a stabilizing groove (15), wherein the air outlet cavity (14) is arranged inside the ejector rod (11) and the limiting rod (8), the exhaust hole (10) is positioned at the lower part of the limiting rod (8), and the stabilizing groove (15) is arranged at the edge of the lower surface of the cylinder body (1).
6. An over-travel explosion-proof nitrogen spring as recited in claim 1, wherein: the lower part of the surface of the cylinder body (1) is provided with a mounting groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223373609.2U CN219734052U (en) | 2022-12-15 | 2022-12-15 | Over-travel explosion-proof nitrogen spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223373609.2U CN219734052U (en) | 2022-12-15 | 2022-12-15 | Over-travel explosion-proof nitrogen spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734052U true CN219734052U (en) | 2023-09-22 |
Family
ID=88057789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223373609.2U Active CN219734052U (en) | 2022-12-15 | 2022-12-15 | Over-travel explosion-proof nitrogen spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734052U (en) |
-
2022
- 2022-12-15 CN CN202223373609.2U patent/CN219734052U/en active Active
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