CN109630587B - Nitrogen spring with adjustable return speed - Google Patents
Nitrogen spring with adjustable return speed Download PDFInfo
- Publication number
- CN109630587B CN109630587B CN201910037876.6A CN201910037876A CN109630587B CN 109630587 B CN109630587 B CN 109630587B CN 201910037876 A CN201910037876 A CN 201910037876A CN 109630587 B CN109630587 B CN 109630587B
- Authority
- CN
- China
- Prior art keywords
- flow regulating
- plunger
- channel
- hole
- valve
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 117
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 10
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0218—Mono-tubular units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
- F16F9/0209—Telescopic
- F16F9/0281—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a nitrogen spring with adjustable return speed, which comprises: a cylinder body, the bottom of which is provided with a bottom cover so as to form a cavity; the plunger is arranged in the cavity of the cylinder body at the lower part, the cavity is divided into an upper cavity and a lower cavity, and the upper part of the plunger extends out of the upper end of the cylinder body; the lower end face of the plunger is provided with a longitudinal channel upwards, the outer side of the plunger is provided with a first transverse channel which is communicated with the upper cavity and the longitudinal channel, and a one-way valve is arranged in the longitudinal channel; the plunger is characterized in that a through hole penetrating through the upper end face of the plunger is further formed in the upper end face of the plunger, a flow regulating valve is inserted in the through hole, a flow regulating channel with adjustable size is arranged at the lower end of the flow regulating valve, the lower end of the flow regulating channel is communicated with the lower cavity, the upper end of the flow regulating channel is communicated with the through hole, a second transverse channel communicated with the through hole is arranged on the outer side of the plunger, and a regulating position for regulating the size of the flow regulating channel is arranged at the upper end of the flow regulating valve.
Description
Technical field:
the invention relates to the technical field of elastic element products, in particular to a nitrogen spring with adjustable return speed.
The background technology is as follows:
with the continuous progress of science and technology, the requirements of the industrial field on the elastic element are higher and higher, so that the elastic element is required to meet various requirements of a mechanical structure, and miniaturization and high performance of the elastic element are required.
The conventional elastic elements used in the prior art, such as springs, elastic rubber, air cushions and the like, generate elastic force which is increased in proportion to the increase of the compression amount, can not keep constant pressure in the working process, have small telescopic stroke, and many processes need constant elastic change, so that the conventional elastic elements bring great influence and limitation to the process design requirements, can not meet the process requirements, directly influence the product quality and efficiency, and greatly improve the production cost.
The nitrogen spring in the prior art can solve the problems, at present, the nitrogen spring used in various industries in China mainly comprises an inlet, and the die nitrogen spring (called as a die nitrogen spring or a nitrogen cylinder for short) is a novel elastic element which takes high-pressure nitrogen as a working medium, 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, has the work which is difficult to be completed by conventional elastic components such as a metal spring, rubber, an air cushion and the like, simplifies the design and manufacture of a die, facilitates the installation and adjustment of the die, prolongs the service life of the die, ensures the stability of the product quality, and is an ideal elastic component with the new generation of flexible performance.
In the traditional die industry, although the nitrogen spring is widely applied, the rebound stroke of the nitrogen spring in the prior art is not adjustable, so that different processing requirements cannot be met, other types of nitrogen springs need to be replaced, the cost is increased, and great trouble is caused to a user.
In view of this, the present inventors have proposed the following means.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art and provides a nitrogen spring with adjustable return speed.
In order to solve the technical problems, the invention adopts the following technical scheme: the return speed adjustable nitrogen spring comprises: a cylinder body, the bottom of which is provided with a bottom cover so as to form a cavity; the plunger is arranged in the cavity of the cylinder body at the lower part, the cavity is divided into an upper cavity and a lower cavity, and the upper part of the plunger extends out of the upper end of the cylinder body; the lower end face of the plunger is provided with a longitudinal channel upwards, the outer side of the plunger is provided with a first transverse channel which is communicated with the upper cavity and the longitudinal channel, and a one-way valve is arranged in the longitudinal channel; the plunger is characterized in that a through hole penetrating through the upper end face of the plunger is further formed in the upper end face of the plunger, a flow regulating valve is inserted in the through hole, a flow regulating channel with adjustable size is arranged at the lower end of the flow regulating valve, the lower end of the flow regulating channel is communicated with the lower cavity, the upper end of the flow regulating channel is communicated with the through hole, a second transverse channel communicated with the through hole is arranged on the outer side of the plunger, and a regulating position for regulating the size of the flow regulating channel is arranged at the upper end of the flow regulating valve.
Furthermore, in the above technical scheme, a threaded hole penetrating the through hole is formed in the outer side of the plunger, the fastening screw is screwed into the threaded hole, and the end portion of the fastening screw extends into the through hole and abuts against and positions the flow regulating valve.
Furthermore, in the above technical scheme, the through hole upper end spiral of plunger installs presses the cap, should press the cap to be provided with the hole site that supplies the instrument to penetrate, and this hole site and adjustment position coaxial setting.
Furthermore, in the above technical solution, at least two first O-rings are sleeved on the periphery of the flow regulating valve, and the first O-rings are in close contact with the inner wall of the through hole and are located at the upper end and the lower end of the flow regulating channel.
Furthermore, in the above technical scheme, the flow regulating valve comprises a valve base, a valve body sleeved on the valve base, a regulating valve rod penetrating through the valve body and a nut for locking the regulating valve rod on the valve body, wherein the valve base and the valve body penetrate through the through hole, the flow regulating channel is arranged on the valve base, the upper end of the regulating valve rod is provided with the regulating position, and the lower end of the regulating valve rod stretches into the flow regulating channel to regulate the size of the flow regulating channel.
Furthermore, in the above technical solution, a valve core is disposed in the bottom cover.
Furthermore, in the above technical scheme, the bottom cover is fastened to the inner wall of the lower end of the cylinder body through the snap spring, and a second O-ring is arranged between the periphery of the bottom cover and the inner wall of the lower end of the cylinder body.
Furthermore, in the above technical scheme, the inner wall of the upper end of the cylinder body is provided with a first guide ring, a dust seal and a main Y-shaped seal which are positioned at the upper end and the lower end of the first guide ring, and the upper end of the plunger is arranged in the first guide ring in a penetrating way and is contacted with the dust seal and the main Y-shaped seal.
Furthermore, in the above technical scheme, the periphery of the lower end of the plunger is provided with a second guide ring, and a first Y-shaped seal and a second Y-shaped seal which are positioned at the upper end and the lower end of the second guide ring, and the second guide ring, the first Y-shaped seal and the second Y-shaped seal are in contact with the inner wall of the cylinder body.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: the invention can control the rebound speed of the plunger through the flow regulating valve so as to meet different processing requirements, avoid impact damage caused by processing a workpiece when the plunger rebounds rapidly, is very convenient to use and has extremely strong competitiveness.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a first usage state diagram of the present invention;
fig. 3 is a second usage state diagram of the present invention.
The specific embodiment is as follows:
the invention will be further described with reference to specific examples and figures.
1-3, a return velocity adjustable nitrogen spring is provided, comprising: a cylinder 1, a bottom cover 4 is arranged at the bottom of the cylinder 1 to form a chamber 11; a plunger 2, the lower part of the plunger 2 is arranged in a chamber 11 of the cylinder 1, the chamber 11 is divided into an upper chamber 111 and a lower chamber 112, and the upper part of the plunger 2 extends out of the upper end of the cylinder 1; a longitudinal channel 21 is formed on the lower end surface of the plunger 2 upwards, a first transverse channel 22 which is communicated with the upper chamber 111 and the longitudinal channel 21 is formed on the outer side of the plunger 2, and a one-way valve 211 is arranged in the longitudinal channel 21; the lower end face of the plunger 2 is further provided with a through hole 20 penetrating through the upper end face of the plunger, a flow regulating valve 3 is inserted in the through hole 20, the lower end of the flow regulating valve 3 is provided with a flow regulating channel 30 with adjustable size, the lower end of the flow regulating channel 30 is communicated with the lower cavity 112, the upper end of the flow regulating channel 30 is communicated with the through hole 20, the outer side of the plunger 2 is provided with a second transverse channel 24 communicated with the through hole 20, and the upper end of the flow regulating valve 3 is provided with a regulating position 301 for regulating the size of the flow regulating channel 30. The initial state of the invention is: the plunger 2 is located at the top dead center (topmost) of the upper chamber 111; when the plunger 2 moves downwards to the bottom dead center (bottommost) of the lower chamber 112 under the action of external force during operation, at this time, part of high-pressure gas in the lower chamber 112 sequentially enters the upper chamber 111 along the one-way valve 211, the longitudinal channel 21 and the first transverse channel 22, and meanwhile, part of high-pressure gas in the lower chamber 112 sequentially enters the upper chamber 111 along the through hole 20, the flow regulating channel 30 and the second transverse channel 24, so that all high-pressure gas in the lower chamber 112 enters the upper chamber 111. When the external force is removed, all the high-pressure gas in the upper chamber 111 enters the lower chamber 112 along the second transverse channel 24, the flow regulating channel 30 and the through hole 20, and at this time, the plunger 2 rebounds under the action of the high-pressure gas flowing from the upper chamber 111 into the lower chamber 112, and finally the plunger 2 is located at the top dead center (top most) of the upper chamber 111; the size of the flow regulating channel 30 of the flow regulating valve 3 can be regulated so that when the rebound speed of the plunger 2 needs to be controlled, the size of the flow regulating channel 30 of the flow regulating valve 3 can be regulated, specifically, the size of the flow regulating channel 30 can be regulated by inserting the tool 100 into the regulating position 301 at the upper end of the flow regulating valve 3, wherein when the flow regulating channel 30 is regulated to be smaller, the rebound speed of the plunger 2 can be controlled to be slower, and when the flow regulating channel 30 is regulated to be larger, the rebound speed of the plunger 2 can be controlled to be faster, that is, the rebound speed of the plunger 2 can be controlled through the flow regulating valve 3 so as to meet different processing requirements, and the impact damage caused by processing workpieces when the plunger rebounds rapidly can be avoided.
The outside of the plunger 2 is provided with a threaded hole 25 penetrating through the through hole 20, a fastening bolt 26 is screwed in the threaded hole 25, and the end part of the fastening bolt 26 extends into the through hole 20 and abuts against and positions the flow regulating valve 3, so that the flow regulating valve 3 is stably installed in the through hole 20 of the plunger 2.
The upper end of the through hole 20 of the plunger 2 is spirally provided with a pressing cap 27, the pressing cap 27 is provided with a hole position 271 for the tool 100 to penetrate, and the hole position 271 is coaxially arranged with the adjusting position 301, so that when the size of the flow adjusting channel 30 of the flow adjusting valve 3 needs to be adjusted, the tool is inserted into the adjusting position 301 through the hole position 271 of the pressing cap 27, thereby realizing the adjusting operation.
At least two first O-rings 302 are sleeved on the periphery of the flow regulating valve 3, and the first O-rings 302 are in close contact with the inner wall of the through hole 20 and are positioned at the upper end and the lower end of the flow regulating channel 30, so that the purpose of sealing contact is achieved between the flow regulating valve and the flow regulating valve, and the flow regulating valve 3 is prevented from leaking.
The flow regulating valve 3 comprises a valve base 31, a valve body 32 sleeved on the valve base 31, a regulating valve rod 33 penetrating through the valve body 32 and a nut 34 for locking the regulating valve rod 33 on the valve body 32, the valve base 31 and the valve body 32 penetrate through the through hole 20, the flow regulating channel 30 is arranged on the valve base 31, the regulating position 301 is arranged at the upper end of the regulating valve rod 33, and the lower end of the regulating valve rod 33 stretches into the flow regulating channel 30 to regulate the size of the flow regulating channel 30. When the flow rate regulating valve 3 is regulated, the nut 34 is loosened by passing a wrench through the hole 271 of the pressure cap 27, so that the regulating valve rod 33 can be regulated, and at this time, a tool is inserted into the regulating position 301 by passing through the hole 271 of the pressure cap 27, thereby realizing the regulating operation.
A valve core 42 is provided in the bottom cover 4 for filling the chamber 11 of the cylinder 1 with high pressure nitrogen gas at the time of initial assembly. The bottom cover 4 is fastened to the inner wall of the lower end of the cylinder body 1 through a clamp spring 43, and a second O-shaped ring 44 is arranged between the periphery of the bottom cover 4 and the inner wall of the lower end of the cylinder body 1.
The inner wall of the upper end of the cylinder body 1 is provided with a first guide ring 12, a dustproof seal 13 and a main Y-shaped seal 14 which are positioned at the upper end and the lower end of the first guide ring 12, and the upper end of the plunger 2 is penetrated in the first guide ring 12 and contacted with the dustproof seal 13 and the main Y-shaped seal 14; furthermore, a second guiding ring 28, and a first Y-shaped seal 281 and a second Y-shaped seal 282 disposed at the upper and lower ends of the second guiding ring 28 are disposed at the periphery of the lower end of the plunger 2, and the second guiding ring 28, the first Y-shaped seal 281 and the second Y-shaped seal 282 are in contact with the inner wall of the cylinder 1, so as to ensure that the plunger 2 is stably assembled in the cylinder 1 and the plunger 2 can stably slide.
In summary, the initial state of the present invention is: the plunger 2 is located at the top dead center (topmost) of the upper chamber 111; when the plunger 2 moves downwards to the bottom dead center (bottommost) of the lower chamber 112 under the action of external force during operation, at this time, part of high-pressure gas in the lower chamber 112 sequentially enters the upper chamber 111 along the one-way valve 211, the longitudinal channel 21 and the first transverse channel 22, and meanwhile, part of high-pressure gas in the lower chamber 112 sequentially enters the upper chamber 111 along the through hole 20, the flow regulating channel 30 and the second transverse channel 24, so that all high-pressure gas in the lower chamber 112 enters the upper chamber 111. When the external force is removed, all the high-pressure gas in the upper chamber 111 enters the lower chamber 112 along the second transverse channel 24, the flow regulating channel 30 and the through hole 20, and at this time, the plunger 2 rebounds under the action of the high-pressure gas flowing from the upper chamber 111 into the lower chamber 112, and finally the plunger 2 is located at the top dead center (top most) of the upper chamber 111; the size of the flow regulating channel 30 of the flow regulating valve 3 can be regulated so that when the rebound speed of the plunger 2 needs to be controlled, the size of the flow regulating channel 30 of the flow regulating valve 3 can be regulated, specifically, the size of the flow regulating channel 30 can be regulated by inserting a tool into the regulating position 301 at the upper end of the flow regulating valve 3, wherein when the flow regulating channel 30 is regulated to be smaller, the rebound speed of the plunger 2 can be controlled to be slower, and when the flow regulating channel 30 is regulated to be larger, the rebound speed of the plunger 2 can be controlled to be faster, that is, the rebound speed of the plunger 2 can be controlled through the flow regulating valve 3 so as to meet different processing requirements, and the impact damage caused by processing workpieces when the plunger rebounds rapidly can be avoided.
It is understood that the foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.
Claims (9)
1. A return velocity adjustable nitrogen spring, comprising:
a cylinder body (1), wherein a bottom cover (4) is arranged at the bottom of the cylinder body (1) so as to form a cavity (11);
the lower part of the plunger (2) is arranged in a cavity (11) of the cylinder body (1), the cavity (11) is divided into an upper cavity (111) and a lower cavity (112), and the upper part of the plunger (2) extends out of the upper end of the cylinder body (1); the method is characterized in that:
a longitudinal channel (21) is formed in the upper end face of the plunger (2), a first transverse channel (22) which is communicated with the upper cavity (111) and the longitudinal channel (21) is formed in the outer side of the plunger (2), and a one-way valve (211) is arranged in the longitudinal channel (21); the plunger piston is characterized in that a through hole (20) penetrating through the upper end face of the plunger piston is further formed in the lower end face of the plunger piston (2) upwards, a flow regulating valve (3) is inserted in the through hole (20), a flow regulating channel (30) with adjustable size is arranged at the lower end of the flow regulating valve (3), the lower end of the flow regulating channel (30) is communicated with the lower cavity (112), the upper end of the flow regulating channel (30) is communicated with the through hole (20), a second transverse channel (24) communicated with the through hole (20) is arranged at the outer side of the plunger piston (2), and a regulating position (301) used for regulating the size of the flow regulating channel (30) is arranged at the upper end of the flow regulating valve (3).
2. The return speed adjustable nitrogen spring according to claim 1, wherein: the plunger (2) is provided with a threaded hole (25) penetrating through the through hole (20) on the outer side, a fastening bolt (26) is fixed in the threaded hole (25) in a threaded mode, and the end portion of the fastening bolt (26) stretches into the through hole (20) and abuts against and positions the flow regulating valve (3).
3. The return speed adjustable nitrogen spring according to claim 1, wherein: the upper end of the through hole (20) of the plunger (2) is spirally provided with a pressing cap (27), the pressing cap (27) is provided with a hole site (271) for a tool to penetrate, and the hole site (271) and the adjusting position (301) are coaxially arranged.
4. The return speed adjustable nitrogen spring according to claim 1, wherein: the periphery of the flow regulating valve (3) is sleeved with at least two first O-shaped rings (302), and the first O-shaped rings (302) are tightly contacted with the inner wall of the through hole (20) and are positioned at the upper end and the lower end of the flow regulating channel (30).
5. A return speed adjustable nitrogen spring according to any of claims 1-4, wherein: the flow regulating valve (3) comprises a valve base (31), a valve body (32) sleeved on the valve base (31), a regulating valve rod (33) penetrating through the valve body (32) and a nut (34) used for locking the regulating valve rod (33) on the valve body (32), wherein the valve base (31) and the valve body (32) penetrate through the through hole (20), the flow regulating channel (30) is arranged on the valve base (31), the regulating position (301) is arranged at the upper end of the regulating valve rod (33), and the lower end of the regulating valve rod (33) stretches into the flow regulating channel (30) to regulate the size of the flow regulating channel (30).
6. The return speed adjustable nitrogen spring according to claim 5, wherein: a valve core (42) is arranged in the bottom cover (4).
7. The return speed adjustable nitrogen spring according to claim 5, wherein: the bottom cover (4) is fastened to the inner wall of the lower end of the cylinder body (1) through a clamp spring (43), and a second O-shaped ring (44) is arranged between the periphery of the bottom cover (4) and the inner wall of the lower end of the cylinder body (1).
8. The return speed adjustable nitrogen spring according to claim 5, wherein: the inner wall of the upper end of the cylinder body (1) is provided with a first guide ring (12), a dustproof seal (13) and a main Y-shaped seal (14) which are positioned at the upper end and the lower end of the first guide ring (12), and the upper end of the plunger (2) is penetrated in the first guide ring (12) and is contacted with the dustproof seal (13) and the main Y-shaped seal (14).
9. The return speed adjustable nitrogen spring according to claim 5, wherein: the periphery of the lower end of the plunger (2) is provided with a second guide ring (28), a first Y-shaped seal (281) and a second Y-shaped seal (282) which are positioned at the upper end and the lower end of the second guide ring (28), and the second guide ring (28), the first Y-shaped seal (281) and the second Y-shaped seal (282) are in contact with the inner wall of the cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037876.6A CN109630587B (en) | 2019-01-16 | 2019-01-16 | Nitrogen spring with adjustable return speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037876.6A CN109630587B (en) | 2019-01-16 | 2019-01-16 | Nitrogen spring with adjustable return speed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109630587A CN109630587A (en) | 2019-04-16 |
| CN109630587B true CN109630587B (en) | 2024-02-02 |
Family
ID=66060988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910037876.6A Active CN109630587B (en) | 2019-01-16 | 2019-01-16 | Nitrogen spring with adjustable return speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109630587B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873142B (en) * | 2019-11-28 | 2024-07-23 | 东莞市博鼎精密机械制造有限公司 | Novel return self-deceleration nitrogen spring for inhibiting rebound of pressing plate |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6390457B1 (en) * | 2001-02-14 | 2002-05-21 | Ralph Roper | Soft-start, soft-return gas spring |
| CN102463281A (en) * | 2010-11-04 | 2012-05-23 | 张兴 | Stamping process for nitrogen-gas spring |
| CN204493556U (en) * | 2015-03-11 | 2015-07-22 | 邱文辉 | Novel nitrogen spring |
| CN107035805A (en) * | 2017-04-28 | 2017-08-11 | 东莞市博鼎精密机械制造有限公司 | One kind delay nitrogen spring device |
| CN107763130A (en) * | 2016-08-18 | 2018-03-06 | 大连精维液压技术有限公司 | Unitary adjustable section postpones nitrogen spring |
| CN108679142A (en) * | 2018-06-29 | 2018-10-19 | 东莞市博鼎精密机械制造有限公司 | A kind of novel controllable time delay rebound nitrogen gas spring |
| CN108999909A (en) * | 2018-09-27 | 2018-12-14 | 东莞市腾飞五金模具有限公司 | A kind of nitrogen device |
| CN208268291U (en) * | 2018-04-12 | 2018-12-21 | 江苏耐玛鑫精密机械有限公司 | A kind of piston type nitrogen gas spring of bottom inflatable |
| CN209762106U (en) * | 2019-01-16 | 2019-12-10 | 东莞市博鼎精密机械制造有限公司 | return speed adjustable nitrogen spring |
-
2019
- 2019-01-16 CN CN201910037876.6A patent/CN109630587B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6390457B1 (en) * | 2001-02-14 | 2002-05-21 | Ralph Roper | Soft-start, soft-return gas spring |
| CN102463281A (en) * | 2010-11-04 | 2012-05-23 | 张兴 | Stamping process for nitrogen-gas spring |
| CN204493556U (en) * | 2015-03-11 | 2015-07-22 | 邱文辉 | Novel nitrogen spring |
| CN107763130A (en) * | 2016-08-18 | 2018-03-06 | 大连精维液压技术有限公司 | Unitary adjustable section postpones nitrogen spring |
| CN107035805A (en) * | 2017-04-28 | 2017-08-11 | 东莞市博鼎精密机械制造有限公司 | One kind delay nitrogen spring device |
| CN208268291U (en) * | 2018-04-12 | 2018-12-21 | 江苏耐玛鑫精密机械有限公司 | A kind of piston type nitrogen gas spring of bottom inflatable |
| CN108679142A (en) * | 2018-06-29 | 2018-10-19 | 东莞市博鼎精密机械制造有限公司 | A kind of novel controllable time delay rebound nitrogen gas spring |
| CN108999909A (en) * | 2018-09-27 | 2018-12-14 | 东莞市腾飞五金模具有限公司 | A kind of nitrogen device |
| CN209762106U (en) * | 2019-01-16 | 2019-12-10 | 东莞市博鼎精密机械制造有限公司 | return speed adjustable nitrogen spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109630587A (en) | 2019-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI648482B (en) | Overtravel pressure release for gas springs | |
| WO2016029695A1 (en) | Unpowered cavity push-puller and clamper used thereby | |
| CN109630587B (en) | Nitrogen spring with adjustable return speed | |
| CN108679142B (en) | Novel controllable time delay resilience nitrogen spring | |
| CN209762106U (en) | return speed adjustable nitrogen spring | |
| CN214946648U (en) | Gas pressure reducer | |
| CN101439379A (en) | Container end socket punching device | |
| CN209094881U (en) | A kind of sealing ring assembly manipulator transmitted based on gas or liquid | |
| CN110873142B (en) | Novel return self-deceleration nitrogen spring for inhibiting rebound of pressing plate | |
| CN208457088U (en) | A kind of novel controllable time delay rebound nitrogen gas spring | |
| CN204018482U (en) | A kind of punch press servicing unit | |
| CN213825618U (en) | Injection valve with stepless regulation of stroke and resilience force | |
| US4209987A (en) | Hydraulic screw press drive | |
| CN211231392U (en) | Novel return stroke self-decelerating nitrogen spring for inhibiting rebound of pressure plate | |
| WO2012019332A1 (en) | Mortar feeding device with pressure regulating structure | |
| CN109253123A (en) | Automatic reciprocal cylinder for roadmarking | |
| CN203549041U (en) | Self-operated pressure regulating valve | |
| CN207655433U (en) | A kind of tooling of control antenna house head inner surface rubberization thickness uniformity | |
| CN209762105U (en) | novel pneumatic control time-delay rebound nitrogen spring | |
| CN118287698B (en) | Flat plate type back suction diaphragm fluid printing mechanism | |
| CN203189255U (en) | Flow pressure controller for mini air compressor | |
| CN217177249U (en) | Adjustable slow rebound nitrogen spring | |
| CN114738250B (en) | High-temperature high-pressure mortar pump | |
| CN218325941U (en) | Time delay nitrogen spring structure | |
| CN219580947U (en) | Pneumatic injection valve piston reset force transmission structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |