CN208457091U - A kind of overvoltage protection nitrogen gas spring - Google Patents
A kind of overvoltage protection nitrogen gas spring Download PDFInfo
- Publication number
- CN208457091U CN208457091U CN201821048254.0U CN201821048254U CN208457091U CN 208457091 U CN208457091 U CN 208457091U CN 201821048254 U CN201821048254 U CN 201821048254U CN 208457091 U CN208457091 U CN 208457091U
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- ring
- cylinder body
- mounting groove
- empty slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of overvoltage protection nitrogen gas spring; it includes cylinder body, the guide sleeve and piston rod for being installed on cylinder body upper end; guide sleeve periphery is in sealing contact by the first O-ring and inboard wall of cylinder block; guide sleeve periphery is provided with the first mounting groove for installing the first O-ring and the empty slot above the first mounting groove, is formed with projecting ring section between first mounting groove and empty slot；Projecting ring section inwardly offers over-voltage safety relief notch along its outer wall, which is connected to empty slot, and second is formed between the first mounting groove and empty slot can break through thin-walled.When inboard wall of cylinder block air pressure is more than the pressure that it is able to bear, the nitrogen of cylinder interior squeezes upwards to push up the first O-ring upwards, and it breaks through second and can break through thin-walled meeting, first O-ring, which loses top second, can break through the support of thin-walled and occur deforming to lose sealing effect, nitrogen can rush upwards, and the phenomenon that releasing along the peripheral gap between inboard wall of cylinder block of guide sleeve, prevent cylinder body over-voltage and burst.
Description
Technical field:
The utility model relates to elastic element product technical fields, refer in particular to a kind of overvoltage protection nitrogen gas spring.
Background technique:
With being constantly progressive for science and technology, requirement of the industrial circle to elastic element is higher and higher, has both required elastic member
Part meets the various demands of mechanical structure, and requires the miniaturization and high-performance of elastic element.
Conventional elastic means used in the prior art, such as spring, elastic rubber and air cushion, generated elastic force with
The directly proportional increase of increase of decrement and pressure cannot be kept constant during the work time, and the work that flexible stroke is small, very much
Skill needs constant Flexible change, and conventional elastic means bring very big influence and limitation to production engineering specifications, cannot
Meet process requirements, causes to directly affect product quality and efficiency, production cost is caused to greatly improve.
Nitrogen gas spring in the prior art can solve above-mentioned these problems, currently, the nitrogen gas spring of China's every profession and trade
Based on import, mould nitrogen gas spring (abbreviation punch die nitrogen gas spring or nitrogen gas spring or nitrogen cylinder or nitrogen cylinder) is one kind with high pressure
Nitrogen is the New Elastic Component on Cool of working media, it is small in size, elastic force is big, stroke is long, stable working, and manufacture is accurate, uses the longevity
Life length, spring curve is gentle, and do not need preload etc., it has the common elastics components such as metal spring, rubber and air cushion
It is difficult to the work completed, simplifies mold design and manufacture, facilitates mold installation and adjustment, extend the service life of mold, it is ensured that
The stabilization of product quality is a kind of optimal elastomeric element of a new generation with flex capability.
Nitrogen gas spring in the prior art is not provided with overvoltage protection structure, and the nitrogen gas spring is caused easily to produce in over-voltage
Raw Decrepitation Phenomena, damages entire nitrogen gas spring and is not available, and exists and use security risk.
In view of this, the present inventor proposes following technical scheme.
Utility model content:
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of overvoltage protection nitrogen gas spring.
In order to solve the above-mentioned technical problem, the utility model uses following technical proposals: the overvoltage protection nitrogen gas spring,
It includes cylinder body, the guide sleeve for being installed on cylinder body upper end and the piston rod for being installed in cylinder body and being arranged in guide sleeve, and
Guide sleeve periphery is in sealing contact by the first O-ring and inboard wall of cylinder block, wherein the guide sleeve periphery is provided with for installing first
The first mounting groove and the empty slot above the first mounting groove of O-ring, are formed with bulge loop between first mounting groove and empty slot
Portion；The projecting ring section inwardly offers over-voltage safety relief notch along its outer wall, which is connected to empty slot, should
Second is formed between first mounting groove and empty slot can break through thin-walled.
Furthermore, in above-mentioned technical proposal, the second oil sealing and plunger rod contacts of the guide sleeve inner wall setting should
Guide sleeve inner wall is provided with the third mounting groove for installing the second oil sealing, and the third mounting groove is corresponding with empty slot position.
Furthermore, in above-mentioned technical proposal, the guide sleeve inner wall is additionally provided with guide ring, which is located at should
Above second oil sealing, and the guide ring and piston rod are in close contact.
Furthermore, in above-mentioned technical proposal, the guiding set upper side periphery is pacified by the way that circlip and cylinder body upper end are fixed
Dress.
Furthermore, in above-mentioned technical proposal, the is additionally provided between guiding set upper side periphery and cylinder body upper end
One dust seal, first dust seal are located above circlip.
Furthermore, it in above-mentioned technical proposal, is additionally provided between the guiding set upper side inner wall and piston rod outer wall
Second dust seal, this second dust-proof is sealed and placed in above the guide ring.
After adopting the above technical scheme, the utility model is had the following beneficial effects: compared with prior art due to this
Utility model can break through thin-walled by setting over-voltage safety relief notch to form second, to cause the inboard wall of cylinder block air pressure to be more than
When its pressure being able to bear, the nitrogen of the cylinder interior squeezes upwards, at this point, the nitrogen can push up the first O-ring upwards, this first
O-ring, which constantly jacks up second, can break through thin-walled, this second can break through thin-walled and can be broken through, at this point, first O-ring loses top
Portion second can break through the support of thin-walled and metaboly occurs, at this point, first O-ring loses sealing effect, nitrogen can be upward
The phenomenon that rushing, and releasing along the peripheral gap between inboard wall of cylinder block of guide sleeve, prevent cylinder body over-voltage and burst, to reach
It can be reused to the purpose of overvoltage protection, and in later period more preferable guide sleeve, save use cost, the utility model is enabled to have
The extremely strong market competitiveness.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the perspective view of guide sleeve in the utility model；
Fig. 3 is the cross-sectional view of guide sleeve in the utility model.
Specific embodiment:
The present invention will be further described with attached drawing combined with specific embodiments below.
It as shown in figure 1 to 3, is a kind of overvoltage protection nitrogen gas spring comprising cylinder body 1, the guiding for being installed on 1 upper end of cylinder body
It covers 2 and is installed in cylinder body 1 and is arranged in the piston rod 3 in guide sleeve 2, and 2 periphery of guide sleeve passes through the first O-ring 21
It is in sealing contact with 1 inner wall of cylinder body, wherein 2 periphery of guide sleeve is provided with the first mounting groove 23 for installing the first O-ring 21
Empty slot 24 with 23 top of the first mounting groove is located at, is formed with projecting ring section 25 between first mounting groove 23 and empty slot 24；It is described
Projecting ring section 25 inwardly offers over-voltage safety relief notch 251 along its outer wall, which is connected to empty slot
24, second is formed between first mounting groove 23 and empty slot 24 can break through thin-walled 202.Since the utility model passes through setting over-voltage
Safety relief notch can break through thin-walled 202 to form second, to cause the 1 inner wall air pressure of cylinder body to be more than the pressure that it is able to bear
When, the nitrogen inside the cylinder body 1 squeezes upwards, at this point, the nitrogen can push up the first O-ring 21 upwards, first O-ring 21 is continuous
Jacking up second can break through thin-walled 202, this second can break through thin-walled 202 and can be broken through, at this point, first O-ring 21 loses top
Portion second can break through the support of thin-walled 202 and metaboly occurs, at this point, first O-ring 21 loses sealing effect, nitrogen meeting
Punching upwards, and the gap between the periphery of guide sleeve 2 and 1 inner wall of cylinder body is released prevents cylinder body over-voltage and showing for bursting
As that achieve the purpose that overvoltage protection, and can be reused in later period more preferable guide sleeve, save use cost, enable this practical
It is novel that there is the extremely strong market competitiveness.
Second oil sealing 26 of 2 inner wall of the guide sleeve setting is contacted with piston rod 3, which, which is provided with, is used for
The third mounting groove 27 of second oil sealing 26 is installed, the third mounting groove 27 is corresponding with 24 position of empty slot；Make the empty slot 24 and
First is formed between three mounting grooves 27 can break through thin-walled 201.2 inner wall of guide sleeve is additionally provided with guide ring 28, the guide ring
28 are located at 26 top of the second oil sealing, and the guide ring 28 and piston rod 3 are in close contact.
The 2 upper end periphery of guide sleeve is fixedly mounted by circlip 29 and 1 upper end of cylinder body, so that the guide sleeve 2 can be opposite
The cylinder body 1 carries out disassembling, assembling and replacing.
It is additionally provided with the first dust seal 20 between 2 upper end of the guide sleeve periphery and 1 upper end of cylinder body, first dust seal 20
Above circlip 29, prevents dust from entering between 2 upper end of guide sleeve periphery and 1 upper end of cylinder body with this, guarantee the utility model
Work quality and service life.
It is additionally provided with the second dust seal 31 between the 2 upper end inner wall of guide sleeve and 3 outer wall of piston rod, second dust seal
31 are placed in 28 top of guide ring.It prevents dust from entering between 2 upper end inner wall of guide sleeve and 3 outer wall of piston rod with this, guarantees this
The work quality and service life of utility model.
In conclusion thin-walled can be broken through since the utility model passes through setting over-voltage safety relief notch to form second
202, when causing the 1 inner wall air pressure of cylinder body to be more than the pressure that it is able to bear, the nitrogen inside the cylinder body 1 squeezes upwards, at this point,
The nitrogen can push up the first O-ring 21 upwards, which, which constantly jacks up, second can break through thin-walled 202, this second can break through
Thin-walled 202 can be broken through, at this point, first O-ring 21, which loses top second, can break through the support of thin-walled 202 and become
Shape phenomenon, at this point, first O-ring 21 loses sealing effect, nitrogen can rush upwards, and along 2 periphery of guide sleeve and cylinder body 1
The phenomenon that gap between wall is released, and is prevented cylinder body over-voltage and is burst, to achieve the purpose that overvoltage protection, and in the later period
More preferable guide sleeve can be reused, and use cost is saved, and the utility model is enabled to have the extremely strong market competitiveness.
It certainly, is not to limit the utility model and implement the foregoing is merely specific embodiment of the utility model
Range, all equivalent change or modifications done according to structure, feature and principle described in present utility model application the scope of the patents, should all wrap
It includes in present utility model application the scope of the patents.
Claims (6)
1. a kind of overvoltage protection nitrogen gas spring comprising cylinder body (1), the guide sleeve (2) for being installed on cylinder body (1) upper end and installation
In cylinder body (1) and the piston rod (3) that is arranged in guide sleeve (2), and guide sleeve (2) periphery by the first O-ring (21) with
Cylinder body (1) inner wall is in sealing contact, wherein guide sleeve (2) periphery is provided with the first installation for installing the first O-ring (21)
Slot (23) and the empty slot (24) being located above the first mounting groove (23), are formed between first mounting groove (23) and empty slot (24)
Projecting ring section (25)；It is characterized by: the projecting ring section (25) inwardly offers over-voltage safety relief notch (251) along its outer wall,
The over-voltage safety relief notch (251) is connected to empty slot (24), and forms second between first mounting groove (23) and empty slot (24)
Thin-walled (202) can be broken through.
2. a kind of overvoltage protection nitrogen gas spring according to claim 1, it is characterised in that: guide sleeve (2) inner wall is set
The second oil sealing (26) set is contacted with piston rod (3), which is provided with for installing the second oil sealing (26)
Three mounting grooves (27), the third mounting groove (27) are corresponding with empty slot (24) position.
3. a kind of overvoltage protection nitrogen gas spring according to claim 2, it is characterised in that: guide sleeve (2) inner wall is also
Guide ring (28) are provided with, which is located above second oil sealing (26), and the guide ring (28) and piston rod (3)
It is in close contact.
4. a kind of overvoltage protection nitrogen gas spring according to claim 1, it is characterised in that: outside guide sleeve (2) upper end
It encloses and is fixedly mounted by circlip (29) and cylinder body (1) upper end.
5. a kind of overvoltage protection nitrogen gas spring according to claim 4, it is characterised in that: outside guide sleeve (2) upper end
It encloses and is additionally provided with the first dust seal (20) between cylinder body (1) upper end, which is located above circlip (29).
6. a kind of overvoltage protection nitrogen gas spring according to claim 3, it is characterised in that: in guide sleeve (2) upper end
The second dust seal (31) are additionally provided between wall and piston rod (3) outer wall, which is placed in the guide ring (28)
Top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048254.0U CN208457091U (en) | 2018-06-29 | 2018-06-29 | A kind of overvoltage protection nitrogen gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821048254.0U CN208457091U (en) | 2018-06-29 | 2018-06-29 | A kind of overvoltage protection nitrogen gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208457091U true CN208457091U (en) | 2019-02-01 |
Family
ID=65171646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821048254.0U Active CN208457091U (en) | 2018-06-29 | 2018-06-29 | A kind of overvoltage protection nitrogen gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208457091U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869432A (en) * | 2019-04-10 | 2019-06-11 | 杭飞鹏 | Nitrogen gas spring structure |
| CN110131347A (en) * | 2019-06-12 | 2019-08-16 | 重庆特力普尔机械设备有限公司 | A kind of nitrogen gas spring with multiple protection functions |
| CN110873142A (en) * | 2019-11-28 | 2020-03-10 | 东莞市博鼎精密机械制造有限公司 | Novel return stroke self-decelerating nitrogen spring for inhibiting rebound of pressure plate |
| WO2022222418A1 (en) * | 2021-04-21 | 2022-10-27 | 嘉兴迈特尔宝欣机械工业有限公司 | Nitrogen spring |
-
2018
- 2018-06-29 CN CN201821048254.0U patent/CN208457091U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869432A (en) * | 2019-04-10 | 2019-06-11 | 杭飞鹏 | Nitrogen gas spring structure |
| CN110131347A (en) * | 2019-06-12 | 2019-08-16 | 重庆特力普尔机械设备有限公司 | A kind of nitrogen gas spring with multiple protection functions |
| CN110131347B (en) * | 2019-06-12 | 2024-02-02 | 重庆特力普尔机械设备有限公司 | Nitrogen spring with multiple protection function |
| CN110873142A (en) * | 2019-11-28 | 2020-03-10 | 东莞市博鼎精密机械制造有限公司 | Novel return stroke self-decelerating nitrogen spring for inhibiting rebound of pressure plate |
| WO2022222418A1 (en) * | 2021-04-21 | 2022-10-27 | 嘉兴迈特尔宝欣机械工业有限公司 | Nitrogen spring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208457091U (en) | A kind of overvoltage protection nitrogen gas spring | |
| CN106424395B (en) | A kind of scalable mouth processing mold of pipe fitting | |
| CN103925323A (en) | Gas Spring And Overpressure Relief Plug | |
| CN104913098A (en) | Electronic expansion valve stop structure and electronic expansion valve | |
| CN210565956U (en) | Slow return nitrogen spring | |
| CN108679142A (en) | A kind of novel controllable time delay rebound nitrogen gas spring | |
| CN201434036Y (en) | Nitrogen spring for stamping mold | |
| CN208457088U (en) | A kind of novel controllable time delay rebound nitrogen gas spring | |
| CN208457089U (en) | A kind of anti-deflection nitrogen gas spring | |
| CN215861068U (en) | Hydraulic cylinder | |
| CN209740589U (en) | Hollow double-acting oil jack | |
| CN209762107U (en) | Nitrogen spring with overvoltage overtravel protection safety | |
| CN211649193U (en) | Liquid filter structure with valve | |
| CN105299274A (en) | Novel safety valve | |
| CN212202709U (en) | Novel punch press hydro-cylinder stroke adjustment mechanism | |
| CN209762106U (en) | return speed adjustable nitrogen spring | |
| CN110873142B (en) | Novel return self-deceleration nitrogen spring for inhibiting rebound of pressing plate | |
| CN214578518U (en) | Rotary compression molding air spring | |
| CN203604307U (en) | Electrode clamp oil cylinder of electric furnace | |
| CN201843858U (en) | Hydraulic oil cylinder using floating one-way valve plate for cushioning | |
| CN208457097U (en) | A kind of novel seal nitrogen gas spring | |
| CN109630587A (en) | A kind of adjustable nitrogen gas spring of opening speed | |
| CN213176913U (en) | High-pressure one-way valve core valve sleeve convenient to replace | |
| CN214788744U (en) | Nitrogen spring structure | |
| CN207830443U (en) | A kind of cylinder body splits the nitrogen gas spring of structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |