CN207261548U - A kind of overtravel uses self-relieving nitrogen gas spring - Google Patents
A kind of overtravel uses self-relieving nitrogen gas spring Download PDFInfo
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- CN207261548U CN207261548U CN201720988579.6U CN201720988579U CN207261548U CN 207261548 U CN207261548 U CN 207261548U CN 201720988579 U CN201720988579 U CN 201720988579U CN 207261548 U CN207261548 U CN 207261548U
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- cylinder body
- intermediate sleeve
- nitrogen gas
- gas spring
- ring
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Abstract
The utility model discloses a kind of overtravel to use self-relieving nitrogen gas spring, mainly include cylinder body and intermediate sleeve and piston rod and relief valve, upper end opening in the cylinder body, intermediate sleeve is housed in cylinder body upper end opening, piston rod exceeds cylinder upper end face after passing through intermediate sleeve, and relief valve is housed at the bottom end face of cylinder body；Wire circlip and O-ring and big dustband are housed between the cylinder body and intermediate sleeve；The side of the relief valve is also equipped with charge valve, and one end of the charge valve is connected by filling channel with the chamber of cylinder body.This overtravel uses self-relieving nitrogen gas spring, by adding a special relief valve in the bottom of cylinder body, so as to can trigger this relief valve by piston rod in nitrogen gas spring overtravel use by the high pressure nitrogen abrupt release inside nitrogen gas spring；Thus can completely avoid due to overtravel uses and so that the rod fracture of nitrogen gas spring and fly out or the cylinder block cracking of nitrogen gas spring and loss and injury caused by blowing.
Description
Technical field
Piston rod type nitrogen gas spring technical field is the utility model is related to, especially a kind of overtravel uses self-relieving
Nitrogen gas spring.
Background technology
Nitrogen gas spring currently on the market does not prevent overtravel from using such function.User is in use once
Maloperation or other reasons exceed stroke as defined in nitrogen gas spring, it may appear that by affected by high after the rod fracture of nitrogen gas spring
And fly out or nitrogen gas spring cylinder block cracking is blown and the risk that causes equipment damage or personnel's major injuries to do harm to.And this kind of situation
Also occurred a lot of, and caused serious personnel injury and loss.
Utility model content
The purpose of this utility model is to provide a kind of overtravel to use self-relieving nitrogen gas spring, possesses releasing pressure automatically
Function, reduce personnel safety risk, reduce the advantages of loss of cost, to solve the problems, such as in above-mentioned background technology.
To achieve the above object, the utility model provides following technical solution：
A kind of overtravel uses self-relieving nitrogen gas spring, mainly includes cylinder body and intermediate sleeve and piston rod and pressure release
Valve, the upper end opening in the cylinder body, is equipped with intermediate sleeve in opening, big dustband is housed from top to bottom between intermediate sleeve and cylinder body
With wire circlip and O-ring, wire circlip is stuck in the groove of inboard wall of cylinder block, and O-ring is in the cylindrical groove of intermediate sleeve；Institute
State after piston rod small-end passes through intermediate sleeve endoporus and exceed end face thereon, from top to bottom equipped with small dust-proof between piston rod and intermediate sleeve
Circle, wear-resistant guiding ring and Y-shaped ring, for small dustband in the upper bit groove of intermediate sleeve endoporus, wear-resistant guiding ring is mounted in intermediate sleeve
Top in the lower portion groove of endoporus, lower section of the Y-shaped ring in the lower portion groove of intermediate sleeve endoporus；The relief valve passes through bottom
Seat, which is screwed, is installed on the bottom of cylinder body, and the upper end of relief valve is provided with mandril, one end opening through cylinder base of mandril
The lower end of mouthful extension piston rod, the side of relief valve are also equipped with charge valve, one end of the charge valve by filling channel with
The chamber of cylinder body is connected, and the other end of charge valve is provided with plug.
As further program of the utility model：Intermediate sleeve, and intermediate sleeve are installed between the piston rod and cylinder body
Small dustband, wear-resistant guiding ring and Y-shaped ring are installed between piston rod, be provided between intermediate sleeve and cylinder body big dustband,
Wire circlip and O-ring.
As further program of the utility model：High pressure nitrogen is filled with the chamber of the cylinder body.
As further program of the utility model：The relief valve is made of mandril, O-ring, gasket and base.
As further program of the utility model：The relief valve is installed on the bottom of cylinder body by whorl of base, and
It is squeezed sealing by the O-ring of relief valve and the counterbore base with cylinder base.
Compared with prior art, the beneficial effects of the utility model are as follows：
This overtravel uses self-relieving nitrogen gas spring, by adding a special pressure release in the bottom of cylinder body
Valve, so that this relief valve can be triggered in nitrogen gas spring overtravel use by the pressure abrupt release inside nitrogen gas spring；Thus
Can completely avoid due to overtravel uses and so that the rod fracture of nitrogen gas spring and fly out or the cylinder body of nitrogen gas spring is broken
Split and blow caused loss and injury.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the pressure-relief valve structure schematic diagram of the utility model.
In figure：1 piston rod, 2 intermediate sleeves, 3 big dustbands, 4 small dustbands, 5 wear-resistant guiding rings, 6 wire circlips, 7 Y types
Circle, 8 O-rings, 9 high pressure nitrogens, 10 relief valves, 11 charge valves, 12 plugs, 13 cylinder bodies, 14 thimbles, 15 O-rings, 16 bases,
17 gaskets.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1-2, in the utility model embodiment, including cylinder body 13, intermediate sleeve 2, piston rod 1 and relief valve 10；
Upper end opening in cylinder body 13, opening in intermediate sleeve 2 is housed, big dustband is housed from top to bottom between intermediate sleeve 2 and cylinder body 13
3rd, wire circlip 6 and O-ring 8, wire circlip 6 are stuck in the groove of 13 inner wall of cylinder body, and O-ring 8 is mounted in cylindrical recessed of intermediate sleeve 2
In groove；1 small end of piston rod exceedes end face thereon after passing through 2 endoporus of intermediate sleeve, is filled from top to bottom between piston rod 1 and intermediate sleeve 2
There are small dustband 4, wear-resistant guiding ring 5 and Y-shaped ring 7, small dustband 4 is in the upper bit groove of 2 endoporus of intermediate sleeve, wear-resistant guiding
Top of the ring 5 in the lower portion groove of 2 endoporus of intermediate sleeve, lower section of the Y-shaped ring 7 in the lower portion groove in 2 holes in intermediate sleeve；
Relief valve is made of components such as mandril 14, O-ring 15, gasket 17 and bases 16, and one end of the mandril 14 of relief valve 10 passes through cylinder
The lower end of the opening extension piston rod 1 of 13 bottom of body, relief valve 10 is screwed by base 16 is installed on the bottom of cylinder body 13,
And it is squeezed sealing by the O-ring 15 of relief valve 10 and the counterbore base of 13 bottom of cylinder body；When relief valve 10 mandril 14 by
The piston rod 1 of the nitrogen gas spring used to overtravel is acted on the gasket 17 of relief valve 10 after acting on so that relief valve 10
17 gross distortion of gasket or rupture, while the O-ring 15 of relief valve 10 is departing from the counterbore base of 13 bottom of cylinder body, so that cylinder
High pressure nitrogen 9 in body 13 is run out of from 15 installation position of O-ring of relief valve 10；The side of relief valve 10 is also equipped with charge valve
11；One end of charge valve 11 is connected by filling channel with the chamber of cylinder body 13, and the other end of charge valve 11 is provided with plug 12；
Flat recess when A end faces offer installation.
This overtravel uses self-relieving nitrogen gas spring, by adding a special pressure release in the bottom of cylinder body 13
Valve 10, so that this relief valve 10 can be triggered in nitrogen gas spring overtravel use by 9 moment of high pressure nitrogen inside nitrogen gas spring
Release；Thus can completely avoid due to overtravel uses and so that the piston rod 1 of nitrogen gas spring is broken and flies out or nitrogen bullet
The cylinder body 13 of spring ruptures and blows caused loss and injury.
In summary：The overtravel uses self-relieving nitrogen gas spring, since relief valve 10 is installed on nitrogen gas spring
13 bottom of cylinder body, the mandril 14 of relief valve 10 face the bottom of nitrogen gas spring piston rod 1；Once nitrogen gas spring overtravel makes
With 1 bottom of the piston rod meeting momentary action of nitrogen gas spring can work, moment lets out moment on the mandril 14 of relief valve 10
Pressure；It is effective solve because flown out after the fracture of conventional piston bar by affected by high or nitrogen gas spring cylinder block cracking is blown and caused by
The risk of equipment damage or personnel's major injuries evil.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (5)
1. a kind of overtravel uses self-relieving nitrogen gas spring, mainly including cylinder body (13) and intermediate sleeve (2) and piston rod (1)
With relief valve (10), it is characterised in that：Upper end opening in the cylinder body (13), opening in intermediate sleeve (2), intermediate sleeve are housed
(2) big dustband (3) and wire circlip (6) and O-ring (8), wire circlip (6) card are housed from top to bottom between cylinder body (13)
In the groove of cylinder body (13) inner wall, O-ring (8) is in the cylindrical groove of intermediate sleeve (2)；Piston rod (1) small end is worn
Exceed end face thereon after crossing intermediate sleeve (2) endoporus, small dustband is housed from top to bottom between piston rod (1) and intermediate sleeve (2)
(4), wear-resistant guiding ring (5) and Y-shaped ring (7), small dustband (4) is in the upper bit groove of intermediate sleeve (2) endoporus, wear-resistant guiding
Top of the ring (5) in the lower portion groove of intermediate sleeve (2) endoporus, Y-shaped ring (7) are mounted in the lower portion groove of intermediate sleeve (2) endoporus
Interior lower section；The relief valve (10) is screwed by base (16) is installed on the bottom of cylinder body (13), relief valve (10)
Upper end is provided with mandril (14), and one end of mandril (14) is let out through the lower end of the opening extension piston rod (1) of cylinder body (13) bottom
The side of pressure valve (10) is also equipped with charge valve (11), and one end of the charge valve (11) passes through filling channel and cylinder body (13)
Chamber is connected, and the other end of charge valve (11) is provided with plug (12).
2. a kind of overtravel according to claim 1 uses self-relieving nitrogen gas spring, it is characterised in that：The piston
Intermediate sleeve (2) is installed between bar (1) and cylinder body (13), and small dustband is installed between intermediate sleeve (2) and piston rod (1)
(4), wear-resistant guiding ring (5) and Y-shaped ring (7), are provided with big dustband (3), wire circlip between intermediate sleeve (2) and cylinder body (13)
(6) and O-ring (8).
3. a kind of overtravel according to claim 1 uses self-relieving nitrogen gas spring, it is characterised in that：The cylinder body
(13) high pressure nitrogen (9) is filled with chamber.
4. a kind of overtravel according to claim 1 uses self-relieving nitrogen gas spring, it is characterised in that：The pressure release
Valve is made of mandril (14), O-ring (15), gasket (17) and base (16).
5. a kind of overtravel according to claim 1 uses self-relieving nitrogen gas spring, it is characterised in that：The pressure release
Valve (10) is threadably mounted at the bottom of cylinder body (13), and the O-ring (15) and cylinder body for passing through relief valve (10) by base (16)
(13) counterbore base of bottom is squeezed sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988579.6U CN207261548U (en) | 2017-08-01 | 2017-08-01 | A kind of overtravel uses self-relieving nitrogen gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988579.6U CN207261548U (en) | 2017-08-01 | 2017-08-01 | A kind of overtravel uses self-relieving nitrogen gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207261548U true CN207261548U (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720988579.6U Active CN207261548U (en) | 2017-08-01 | 2017-08-01 | A kind of overtravel uses self-relieving nitrogen gas spring |
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| CN (1) | CN207261548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504119A (en) * | 2017-08-01 | 2017-12-22 | 江苏耐玛鑫精密机械有限公司 | A kind of overtravel uses self-relieving nitrogen spring |
| CN109139767A (en) * | 2018-10-29 | 2019-01-04 | 重庆特力普尔机械设备有限公司 | A kind of two-part nitrogen gas spring for preventing killing function with noise reduction |
-
2017
- 2017-08-01 CN CN201720988579.6U patent/CN207261548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504119A (en) * | 2017-08-01 | 2017-12-22 | 江苏耐玛鑫精密机械有限公司 | A kind of overtravel uses self-relieving nitrogen spring |
| CN109139767A (en) * | 2018-10-29 | 2019-01-04 | 重庆特力普尔机械设备有限公司 | A kind of two-part nitrogen gas spring for preventing killing function with noise reduction |
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