CN220248774U - Double-sealing-structure nitrogen spring - Google Patents
Double-sealing-structure nitrogen spring Download PDFInfo
- Publication number
- CN220248774U CN220248774U CN202321537240.6U CN202321537240U CN220248774U CN 220248774 U CN220248774 U CN 220248774U CN 202321537240 U CN202321537240 U CN 202321537240U CN 220248774 U CN220248774 U CN 220248774U
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- Prior art keywords
- piston
- sealing
- cylinder
- pressure release
- rod
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 73
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 30
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 19
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 19
- 241001330002 Bambuseae Species 0.000 abstract description 19
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 19
- 239000011425 bamboo Substances 0.000 abstract description 19
- 239000007788 liquid Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a nitrogen spring with a double sealing structure, which comprises the following components: the piston cylinder is internally provided with a piston rod, and the bottom of the piston rod is positioned in the piston cylinder and is connected with a piston; the first sealing ring is sleeved on the outer side of the piston rod and positioned at the top of the piston cylinder; the second sealing ring can seal the gas under the movement of the piston rod, so that the gas in the piston rod is always at the bottom of the clamping ring to form primary sealing, the first sealing ring is arranged, the gas is always remained in the piston cylinder, and the first sealing ring seals the piston cylinder for the second time, so that the nitrogen spring is subjected to double sealing; the rotation piece rotates the regulation threaded rod, lets the threaded rod drive sealed piston and adjusts left at the inside of pressure release section of thick bamboo, can expose the pressure release mouth, and the surperficial discharge of too high gas from the pressure release mouth can effectually avoid the inside atmospheric pressure of piston section of thick bamboo too big to cause the damage to piston rod and piston.
Description
Technical Field
The utility model relates to the technical field of nitrogen springs, in particular to a nitrogen spring with a double-sealing structure.
Background
The nitrogen spring (which is a novel elastic component using high-pressure nitrogen as a working medium, and has the advantages of small volume, large elasticity, long stroke, stable work, precise manufacture, long service life, smooth elastic curve, no need of pre-tightening and the like).
In the related art, a scheme of a high-tightness nitrogen spring (bulletin number: CN 207906344U) is found through searching, when the high-tightness nitrogen spring is used, a user takes oil through an oil inlet hole and a one-way oil inlet valve group, injects sealing oil into a liquid storage tank through an oil inlet groove for storage, injects sealing oil into a first sealing ring in a fixed groove through a liquid outlet groove and a liquid dividing groove, enables oil to be filled and sealed with the surfaces of the first sealing ring and a moving block, improves sealing performance, and improves sealing performance through a second sealing ring and a sealing pad.
However, in the process of sealing the nitrogen spring, the redundant gas cannot be discharged due to the fact that the gas pressure in the shell is too high, so that the gas is always in the shell, and under the use of the nitrogen spring, the excessive pressure in the shell cannot be unloaded in time when the pressure born by the nitrogen spring is too high, so that the nitrogen spring is possibly damaged in the use process.
Disclosure of Invention
The utility model aims to provide a nitrogen spring with a double sealing structure, which solves the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a dual seal nitrogen spring comprising:
the piston cylinder is internally provided with a piston rod, and the bottom of the piston rod is positioned in the piston cylinder and is connected with a piston;
the first sealing ring is sleeved on the outer side of the piston rod and positioned at the top of the piston cylinder, and the first sealing ring seals gas in the piston cylinder once;
the clamping ring is arranged on the inner side wall of the piston cylinder, a second sealing ring is arranged on one side of the clamping ring and sleeved on the outer side of the piston rod, the second sealing ring can seal gas in the piston cylinder again, control of the gas in the piston cylinder flowing out of the second sealing ring is avoided, and balls are arranged on the surface of one side of the clamping ring, located on the piston rod;
one side of the piston cylinder is provided with a pressure relief mechanism for removing the excessive pressure in the piston cylinder.
Preferably, the pressure release mechanism includes the pressure release section of thick bamboo of piston tube one side, the inside slip of pressure release section of thick bamboo has sealed piston, one side fixedly connected with movable rod of sealed piston, sealed piston removes down, and sealed piston can drive the movable rod and remove, the inside fixedly connected with fixed plate of pressure release section of thick bamboo, the surface connection of fixed plate has the locating piece, and is connected with the limiting plate behind the movable rod penetration locating piece, and the limiting plate is convenient for restrict the removal too much of movable rod to break away from the inside of locating piece, the surface cover of movable rod is equipped with the first spring that is located between sealed piston one side and the locating piece, and the movable rod removes down, and the first spring on movable rod surface can extrude the surface of locating piece, lets first spring compression, the pressure release mouth has been seted up on the surface of pressure release section of thick bamboo, is integrated into one piece setting between pressure release mouth and the pressure release section of thick bamboo.
Preferably, the bottom of the piston cylinder is connected with an inflation valve.
Preferably, one side of sealing piston is connected with the threaded rod, and extends to the outside of pressure release section of thick bamboo after the one end of threaded rod runs through the fixed plate, and the one end of threaded rod is connected with the commentaries on classics piece, rotates the commentaries on classics piece, and the commentaries on classics piece is convenient for drive the threaded rod and rotates, threaded rod and pressure release section of thick bamboo junction are connected with the third sealing washer, and the third sealing washer is convenient for let gaseous outwards flow to let gaseous inside of reserving in pressure release section of thick bamboo, sealed effect is better.
Preferably, the pressure alarm is connected to the inside roof of pressure release section of thick bamboo, when the inside gas pressure of pressure release section of thick bamboo is higher, can send the warning through the pressure alarm.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, under the movement of the piston rod, the second sealing ring can seal the gas under the movement of the piston rod, so that the gas in the piston rod is always at the bottom of the clamping ring to form primary sealing, the first sealing ring can seal the gas which flows into the top of the clamping ring, so that the gas is always remained in the piston cylinder, and the first sealing ring seals the piston cylinder for the second time, so that the nitrogen spring is subjected to double sealing;
the pressure alarm detects that pressure is higher, and the pressure alarm sends out the warning, and rotatory commentaries on classics piece rotates the regulation threaded rod, is convenient for let the threaded rod drive sealed piston carry out left regulation in the inside of pressure release section of thick bamboo to can expose the pressure release mouth, let the surperficial discharge of too high gas from the pressure release mouth, thereby can effectually avoid the inside atmospheric pressure of piston section of thick bamboo too big to cause the damage to piston rod and piston.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
fig. 3 is a schematic structural diagram of the pressure release cylinder, the sealing piston and the pressure release opening of the present utility model when connected.
In the figure: 1. a piston cylinder; 2. a piston; 3. a piston rod; 4. a first seal ring; 5. an inflation valve; 6. a pressure release cylinder; 7. a sealing piston; 8. a clasp; 9. a ball; 10. a second seal ring; 11. a pressure relief port; 12. a rotating block; 13. a threaded rod; 14. a third seal ring; 15. a pressure alarm; 16. a positioning block; 17. a limiting plate; 18. a movable rod; 19. a fixing plate; 20. a first spring.
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. 1-3, the present utility model provides a technical solution: a dual seal nitrogen spring comprising:
the piston comprises a piston cylinder 1, wherein a piston rod 3 is arranged in the piston cylinder 1, and a piston 2 is connected to the bottom of the piston rod 3 in the piston cylinder 1;
the first sealing ring 4 is sleeved on the outer side of the piston rod 3 and positioned at the top of the piston cylinder 1, and the first sealing ring 4 seals the gas in the piston cylinder 1 once;
the clamping ring 8 is arranged on the inner side wall of the piston cylinder 1, a second sealing ring 10 is arranged on one side of the clamping ring 8, the second sealing ring 10 is sleeved on the outer side of the piston rod 3, the second sealing ring 10 can seal gas in the piston cylinder 1 again, the gas in the piston cylinder 1 is prevented from flowing out of the second sealing ring 10 to control, and a ball 9 is arranged on the surface of the piston rod 3 on one side of the clamping ring 8;
one side of the piston cylinder 1 is provided with a pressure relief mechanism for removing excessive pressure in the piston cylinder 1.
The pressure release mechanism comprises a pressure release cylinder 6 on one side of a piston cylinder 1, a sealing piston 7 is slidingly connected to the inside of the pressure release cylinder 6, a movable rod 18 is fixedly connected to one side of the sealing piston 7, the sealing piston 7 drives the movable rod 18 to move under the movement of the sealing piston 7, a fixing plate 19 is fixedly connected to the inside of the pressure release cylinder 6, a positioning block 16 is connected to the surface of the fixing plate 19, a limiting plate 17 is connected to the movable rod 18 after penetrating through the positioning block 16, the limiting plate 17 is convenient for limiting the movement of the movable rod 18 too much so as to separate from the inside of the positioning block 16, a first spring 20 positioned between one side of the sealing piston 7 and the positioning block 16 is sleeved on the surface of the movable rod 18, the first spring 20 on the surface of the movable rod 18 extrudes the surface of the positioning block 16, the first spring 20 is compressed, a pressure release opening 11 is formed in the surface of the pressure release cylinder 6, and the pressure release opening 11 and the pressure release cylinder 6 are integrally formed.
The bottom of the piston cylinder 1 is connected with an inflation valve 5.
One side of sealing piston 7 is connected with threaded rod 13, and extends to the outside of pressure release section of thick bamboo 6 after the one end of threaded rod 13 runs through fixed plate 19, and the one end of threaded rod 13 is connected with the commentaries on classics piece 12, rotates commentaries on classics piece 12, and commentaries on classics piece 12 is convenient for drive threaded rod 13 and rotates, threaded rod 13 and pressure release section of thick bamboo 6 junction are connected with third sealing washer 14, and third sealing washer 14 is convenient for let gaseous outwards flow to let gaseous inside of reserving in pressure release section of thick bamboo 6, sealed effect is better.
The pressure alarm 15 is connected to the inside roof of pressure release section of thick bamboo 6, and when the inside gas pressure of pressure release section of thick bamboo 6 is higher, can send the warning through pressure alarm 15.
Specifically, when the piston cylinder is used, the gas is conveyed to the interior of the piston cylinder 1 by the gas charging valve 5, the piston rod 3 and the piston 2 work, and under the working of the piston rod 3, the piston rod 3 moves upwards, so that the gas moving upwards by the piston rod 3 can be sealed by the second sealing ring 10, the gas in the piston cylinder 1 is always positioned at the bottom of the clamping ring 8, and the gas in the piston cylinder 1 is shielded by the second sealing ring 10 to form primary sealing;
when the piston rod 3 and the piston 2 move downwards, the piston 2 extrudes the gas in the piston cylinder 1 so as to compress the gas, and the second sealing ring 10 can prevent the gas from flowing from the interior of the piston cylinder 1 to the top of the clamping ring 8 again;
the arrangement of the ball 9 is more convenient for the movement of the piston rod 3, and the arrangement of the first sealing ring 4 can seal the gas which flows into the top of the clamping ring 8, so that the gas is always remained in the piston cylinder 1, and the first sealing ring 4 seals the piston cylinder 1 for the second time, thereby the nitrogen spring is subjected to double sealing;
under the condition that the sealing piston 7 is used, the piston rod 3 and the piston 2 normally work, the pressure cannot push the sealing piston 7, when the air pressure in the piston cylinder 1 is too high, the too high air pressure can enter the pressure release cylinder 6, the pressure alarm 15 detects that the pressure is higher, the pressure alarm 15 gives an alarm, an operator can find out, then the rotating block 12 rotates the adjusting threaded rod 13, and the threaded rod 13 is convenient to drive the sealing piston 7 to adjust leftwards in the pressure release cylinder 6 due to the fact that the joint of the threaded rod 13 and the pressure release cylinder 6 is in a meshed state, so that the pressure release opening 11 can be exposed, the too high air is discharged from the surface of the pressure release opening 11, and damage to the piston rod 3 and the piston 2 caused by the too high air pressure in the piston cylinder 1 can be effectively avoided;
under the condition that the sealing piston 7 moves, the sealing piston 7 pushes the movable rod 18 and the limiting plate 17 to move, so that the movable rod 18 limits the moving position of the sealing piston 7 under the condition that the sealing piston 7 moves, the sealing piston 7 always moves in a horizontal state, the positioning block 16 presses the first spring 20 on the surface of the movable rod 18, the first spring 20 is in a compressed state, and the first spring 20 is compressed.
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 (5)
1. A double seal nitrogen spring, comprising:
the piston comprises a piston cylinder (1), wherein a piston rod (3) is arranged in the piston cylinder (1), and a piston (2) is connected to the bottom of the piston rod (3) in the piston cylinder (1);
the first sealing ring (4) is sleeved on the outer side of the piston rod (3) and positioned at the top of the piston cylinder (1);
the clamping ring (8), the clamping ring (8) is arranged on the inner side wall of the piston cylinder (1), a second sealing ring (10) is arranged on one side of the clamping ring (8), the second sealing ring (10) is sleeved on the outer side of the piston rod (3), and a ball (9) is arranged on the surface of the piston rod (3) on one side of the clamping ring (8);
one side of the piston cylinder (1) is provided with a pressure relief mechanism for removing the excessive pressure in the piston cylinder (1).
2. The nitrogen spring with the double-sealing structure according to claim 1, wherein the pressure release mechanism comprises a pressure release cylinder (6) on one side of a piston cylinder (1), a sealing piston (7) is slidingly connected in the pressure release cylinder (6), a movable rod (18) is fixedly connected to one side of the sealing piston (7), a fixed plate (19) is fixedly connected to the inside of the pressure release cylinder (6), a positioning block (16) is connected to the surface of the fixed plate (19), a limiting plate (17) is connected to the movable rod (18) after penetrating the positioning block (16), a first spring (20) located between one side of the sealing piston (7) and the positioning block (16) is sleeved on the surface of the movable rod (18), and a pressure release opening (11) is formed in the surface of the pressure release cylinder (6).
3. A nitrogen spring with double sealing structure according to claim 1, characterized in that the bottom of the piston cylinder (1) is connected with an inflation valve (5).
4. The nitrogen spring with the double-sealing structure according to claim 2, wherein one side of the sealing piston (7) is connected with a threaded rod (13), one end of the threaded rod (13) penetrates through the fixing plate (19) and then extends to the outer side of the pressure release cylinder (6), one end of the threaded rod (13) is connected with a rotating block (12), and a joint of the threaded rod (13) and the pressure release cylinder (6) is connected with a third sealing ring (14).
5. A double seal nitrogen spring according to claim 2, characterized in that the pressure relief cylinder (6) has its inner top wall connected with a pressure alarm (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321537240.6U CN220248774U (en) | 2023-06-15 | 2023-06-15 | Double-sealing-structure nitrogen spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321537240.6U CN220248774U (en) | 2023-06-15 | 2023-06-15 | Double-sealing-structure nitrogen spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220248774U true CN220248774U (en) | 2023-12-26 |
Family
ID=89267160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321537240.6U Active CN220248774U (en) | 2023-06-15 | 2023-06-15 | Double-sealing-structure nitrogen spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220248774U (en) |
-
2023
- 2023-06-15 CN CN202321537240.6U patent/CN220248774U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |