CN207122530U - A kind of two-chamber gas spring - Google Patents
A kind of two-chamber gas spring Download PDFInfo
- Publication number
- CN207122530U CN207122530U CN201721009648.0U CN201721009648U CN207122530U CN 207122530 U CN207122530 U CN 207122530U CN 201721009648 U CN201721009648 U CN 201721009648U CN 207122530 U CN207122530 U CN 207122530U
- Authority
- CN
- China
- Prior art keywords
- inner tube
- tube
- wall
- piston
- sleeve
- 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.)
- Expired - Fee Related
Links
- 239000007789 gas Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a kind of two-chamber gas spring, outer tube and inner tube including forming sleeve, outer tube overlaps with the axis of inner tube, the front end of sleeve is provided with guide sleeve, guide sleeve center is provided with the through hole that is engaged with piston rod and it is provided with groove close to inner tube side, guide sleeve outer wall is brought into close contact with outer tube wall, and the outer wall of groove inner wall and inner tube is brought into close contact；The tail end of sleeve is used to seal the outer tube provided with one and the tail of inner tube blocks up；Passage is provided with the tail end of said inner tube, connects outer tube and inner tube；Internal tube is provided with piston, and piston outer wall is brought into close contact with inner tube wall and the piston is moved in internal tube, and the other end that piston rod and piston rod are removably connected with the piston stretches out cartridge exterior.The utility model is simple in construction, and under the working condition of locating distance short stroke length, by increasing outer tube, increase inside of air spring reserves cavity volume, can effective optimized force displacement curve, make force value change steadily.
Description
Technical field
It the utility model is related to a kind of gas spring, and in particular to a kind of two-chamber gas spring.
Background technology
Gas spring has a good buffering and damping effect, gas spring small volume, easy to control, is widely used in various machineries and sets
The fields such as standby, automobile, but in actual use, if the situation of locating distance short stroke length is run into, because gas spring reserves inner chamber
Very few, with the continuous compression of piston rod, the force value of gas spring can gradually increase, and speedup is very fast.
Utility model content
In order to solve the above technical problems, the utility model proposes following technical scheme：
A kind of two-chamber gas spring, including the sleeve, piston and piston rod of inert gas are filled with, the sleeve is divided into interior
Pipe and outer tube two parts；The front end of the sleeve is provided with guide sleeve, and the guide sleeve center is provided with and is engaged with the piston rod
Through hole, it is provided with groove close to the side of inner tube, and the guide sleeve outer wall is brought into close contact with the outer tube wall, the groove
Inwall is brought into close contact with said inner tube outer wall, and the guide sleeve plays a part of firm said inner tube and sealing；The sleeve
Tail end be provided with and be used to seal the outer tube and the tail of said inner tube blocks up；The tail end of said inner tube is provided with passage, the outer tube
Connected with said inner tube by the passage；The piston is arranged on inside said inner tube, the piston outer wall with it is described interior
Inside pipe wall is brought into close contact and the piston is moved inside said inner tube；Described piston rod one end and the piston riveting
Connect, its other end stretches out to the cartridge exterior.
Further, the guide sleeve is provided with the sealing ring being brought into close contact with the outer tube wall, further strengthens close
Seal effect.
Further, said inner tube overlaps with the axis of the outer tube.
Further, the guide sleeve upper groove inwall is provided with the sealing ring being brought into close contact with said inner tube outer wall, enters one
Step strengthens sealing effectiveness.
The beneficial effects of the utility model：Under the working condition of locating distance short stroke length, by increasing outer tube, increase gas
Spring inner reserves cavity volume, can effective optimized force-displacement curve, make force value change steady.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the force-displacement behavior curve map of prior art；
Fig. 3 is force-displacement behavior curve map of the present utility model；
Wherein, 1, outer tube, 2, inner tube, 3, piston, 4, piston rod, 5, passage, 6, guide sleeve, 7, tail block up, 8, sealing ring,
9th, sealing ring.
Embodiment
Specific embodiment of the present utility model is described in detail with reference to the accompanying drawings.
As shown in figure 1, the utility model two-chamber gas spring, including form the outer tube 1 and inner tube 2 of sleeve, outer tube 1 and inner tube
2 axis overlaps, and the front end of sleeve is provided with guide sleeve 6, and the center of guide sleeve 6 is provided with the through hole and its being engaged with piston rod 4
Groove is provided with close to the side of inner tube 2, the outer wall of the guide sleeve 6 is brought into close contact with the inwall of outer tube 1, the groove inner wall and
The outer wall of said inner tube 2 is brought into close contact, and is played a part of stability maintenance inner tube 2 and is sealed, can also be further to strengthen sealing effectiveness
Sealing ring 8 and sealing ring 9 are set up on guide sleeve 6；One is provided with the tail end of the sleeve to be used to seal the outer tube and inner tube
Tail stifled 7, is provided with passage 5 in the tail end of said inner tube 2, connects the outer tube 1 and inner tube 2；The inside of inner tube 2 is provided with piston 3, living
3 outer walls are filled in be brought into close contact with the inwall of inner tube 2 and the piston 3 is moved inside inner tube 2, it is removable on the piston 3
Unload the other end stretching cartridge exterior for being connected with piston rod 4 and piston rod 4.
As shown in figure 1, being full of inert gas in the outer tube 1 of two-chamber gas spring and inner tube 2, inert gas pressure is more than general
Logical atmospheric pressure, in real work, when being moved inwards by external force compressive zone piston 3 with piston rod 4, the inertia in inner tube 2
The passage 5 that gas is forced through its bottom is entered in outer tube 1, and this can effectively reduces the force value increase speed of gas spring
Degree, change front and rear force-displacement behavior just as shown in Figure 2 and Figure 3.
Claims (4)
1. a kind of two-chamber gas spring, including be filled with the sleeve of inert gas, piston (3) and piston rod (4), its feature and exist
In：
The sleeve is divided into outer tube (1) and inner tube (2) two parts；
The front end of the sleeve is provided with guide sleeve (6), and guide sleeve (6) center is provided with what is be engaged with the piston rod (4)
Through hole, it is provided with groove close to the side of inner tube (2), and guide sleeve (6) outer wall is brought into close contact with the outer tube (1) inwall,
The groove inner wall is brought into close contact with said inner tube (2) outer wall；
The tail that the tail end of the sleeve is provided with for sealing the outer tube (1) and said inner tube (2) blocks up (7)；
The tail end of said inner tube (2) is provided with passage (5), and the outer tube (1) and said inner tube (2) pass through the passage (5)
Connection；
The piston (3) is arranged on said inner tube (2) inside, and piston (3) outer wall is brought into close contact with said inner tube (2) inwall
And make the piston (3) mobile inside said inner tube (2)；
Described piston rod (4) one end rivets with the piston (3), and its other end stretches out to the cartridge exterior.
A kind of 2. two-chamber gas spring according to claim 1, it is characterised in that the guide sleeve (6) be provided with it is described
The sealing ring (8) that outer tube (1) inwall is brought into close contact.
3. a kind of two-chamber gas spring according to claim 1, it is characterised in that said inner tube (2) and the outer tube (1)
Axis overlaps.
4. a kind of two-chamber gas spring according to claim 1, it is characterised in that guide sleeve (6) groove inner wall and institute
State the sealing ring (9) that inner tube (2) outer wall is brought into close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009648.0U CN207122530U (en) | 2017-08-08 | 2017-08-08 | A kind of two-chamber gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721009648.0U CN207122530U (en) | 2017-08-08 | 2017-08-08 | A kind of two-chamber gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207122530U true CN207122530U (en) | 2018-03-20 |
Family
ID=61610612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721009648.0U Expired - Fee Related CN207122530U (en) | 2017-08-08 | 2017-08-08 | A kind of two-chamber gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207122530U (en) |
-
2017
- 2017-08-08 CN CN201721009648.0U patent/CN207122530U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180320 |