CN202628916U - Low-opening controllable gas spring - Google Patents
Low-opening controllable gas spring Download PDFInfo
- Publication number
- CN202628916U CN202628916U CN 201220235171 CN201220235171U CN202628916U CN 202628916 U CN202628916 U CN 202628916U CN 201220235171 CN201220235171 CN 201220235171 CN 201220235171 U CN201220235171 U CN 201220235171U CN 202628916 U CN202628916 U CN 202628916U
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- CN
- China
- Prior art keywords
- piston
- piston rod
- needle
- valve needle
- opening
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- 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
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Abstract
The utility model discloses a low-opening controllable gas spring which comprises a cylinder, a piston and a piston rod, wherein the piston rod is connected with the piston which is matched with the cylinder. The piston rod and the piston are hollow, a valve needle is arranged in the hollow space of the piston, and two groups of sealing devices for guiding and gas sealing are ranged between two ends of the valve needle and the piston. The diameter of the hollow space between the two groups of sealing devices is larger than that of the valve needle, and a hole communicated with the cylinder is arranged on the piston at the position of the hollow space. An opening rod is arranged in the piston rod and provided with a step performing one-way limit on the piston rod, and one end of the opening rod abuts against the end of the valve needle. By means of the technical scheme, the step performing one-way limit does not need to be arranged on the valve needle, pressure exerted on the end face of the valve needle is reduced, opening strength of the valve needle is reduced, and an opening device does not need to be additionally arranged. Therefore, the low-opening controllable gas spring is simple in structure and convenient to install, the angle adjustment is flexible and easy, using cost of the controllable gas spring is reduced simultaneously.
Description
Technical field
The utility model relates to a kind of air spring, relates in particular to a kind of little controlled air spring of dynamics of opening.
Background technique
The controlled air spring (being angle regulator) of circulation is controlled air spring nature and lock position through promoting starting bar keying needle in the market, reaches regulating action.Handle that in use must supporting clumsiness or complicated opening device are used for promoting starting bar, open needle, reach regulatory function.Trace it to its cause and just be that traditional controlled air spring opening force is excessive.The working principle of air spring is a Boyle's law: after the pressurization, piston two sides area discrepancy produces outside thrust in air because piston rod exposes in airtight cylinder body.The computational methods of its pressure are F=1.2PS; P is a cylinder interior pressure, and S is the piston rod section area, and 1.2 is coefficient, and the more little F of S is more little thus, the same principle of needle opening force size.Needle end face of the prior art is provided with and is used for unidirectional spacing step, causes the pressure in the cylinder that the end face of needle receives bigger, has increased the strength of opening needle, need use opening device and can open needle.
Summary of the invention
Goal of the invention: the purpose of the utility model is the deficiency to existing technology, provides a kind of unlatching dynamics little, need not add the controlled air spring of low unlatching of opening device.
In order to realize the foregoing invention purpose, the technological scheme that the utility model adopted is:
The controlled air spring of a kind of low unlatching comprises cylinder, piston and piston rod, and described piston rod is connected with piston; Piston cooperates with cylinder, and described piston rod and piston are hollow, in piston hollow, is provided with needle; Be provided with two groups of seal arrangements that are used to lead with hermetic seal between the two ends of needle and the piston; Hollow diameter is provided with the hole that communicates with cylinder greater than the diameter of needle at this section hollow position piston between two groups of seal arrangements, in piston rod, is provided with starting bar; Described starting bar is provided with step and piston rod is unidirectional spacing, and starting bar one end withstands on the end of needle.
Described seal arrangement comprises O RunddichtringO and the pad that is provided with at interval.
Said needle effective diameter is 2.5mm.
The said starting bar end that diameter is bigger at the step place is longer than the little end of diameter.
The utility model compared with prior art, its beneficial effect is:
1, starting bar is provided with unidirectional spacing step, does not need on needle, to be provided with unidirectional spacing step, has reduced the pressure that the needle end face receives; Reduced the unlatching dynamics of needle; Do not need the opening device of setting in addition, simple in structure, easy for installation; The angle adjustment light and flexible has reduced the user cost of controlled air spring simultaneously;
2, the starting bar end that diameter is bigger at the step place is longer than the little end of diameter, makes the starting bar guidance quality good.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, through a most preferred embodiment, the utility model technological scheme is elaborated, but the protection domain of the utility model is not limited to said embodiment.
As shown in Figure 1, the controlled air spring of a kind of low unlatching comprises cylinder 1, piston 2 and piston rod 3; Described piston rod is connected with piston, and piston cooperates with cylinder, and described piston rod and piston are hollow; In piston hollow, be provided with needle 4, be provided with two groups of seal arrangements 6 that are used to lead with hermetic seal between the two ends of needle and the piston, hollow diameter is greater than the diameter of needle between two groups of seal arrangements; Be provided with the hole 21 that communicates with cylinder at this section hollow position piston; In piston rod, be provided with starting bar 5, it is unidirectional spacing with piston rod that described starting bar is provided with step 51, and starting bar one end withstands on the end of needle; In order to improve tightness and guidance quality, reduce the described seal arrangement of manufacture cost and comprise the O RunddichtringO 61 and pad 62 that is provided with at interval; The effective diameter of needle is 2.5mm, and the end that the said starting bar end diameter group that diameter is bigger at the step place is little is long.
Claims (4)
1. open controlled air spring for one kind low; Comprise cylinder (1), piston (2) and piston rod (3), described piston rod is connected with piston, and piston cooperates with cylinder; It is characterized in that: described piston rod and piston are hollow; In piston hollow, be provided with needle (4), be provided with the two groups of seal arrangements (6) that are used to lead with hermetic seal between the two ends of needle and the piston, hollow diameter is greater than the diameter of needle between two groups of seal arrangements; Be provided with the hole (21) that communicates with cylinder at this section hollow position piston; In piston rod, be provided with starting bar (5), it is unidirectional spacing with piston rod that described starting bar is provided with step (51), and starting bar one end withstands on the end of needle.
2. the controlled air spring of low unlatching according to claim 1 is characterized in that: described seal arrangement comprises O RunddichtringO (61) and the pad (62) that is provided with at interval.
3. the controlled air spring of low unlatching according to claim 1 is characterized in that: said needle effective diameter is 2.5mm.
4. the controlled air spring of low unlatching according to claim 1 is characterized in that: the said starting bar end that diameter is bigger at the step place is longer than the little end of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235171 CN202628916U (en) | 2012-05-23 | 2012-05-23 | Low-opening controllable gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220235171 CN202628916U (en) | 2012-05-23 | 2012-05-23 | Low-opening controllable gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628916U true CN202628916U (en) | 2012-12-26 |
Family
ID=47382121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220235171 Expired - Fee Related CN202628916U (en) | 2012-05-23 | 2012-05-23 | Low-opening controllable gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439953A (en) * | 2019-08-07 | 2019-11-12 | 安徽莱特气弹簧有限公司 | A kind of novel gas spring control valve and its production and processing method and gas spring |
| CN111168380A (en) * | 2020-01-17 | 2020-05-19 | 宁波力品格自动化科技有限公司 | Automatic assembly machine for controllable gas spring valve members |
-
2012
- 2012-05-23 CN CN 201220235171 patent/CN202628916U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110439953A (en) * | 2019-08-07 | 2019-11-12 | 安徽莱特气弹簧有限公司 | A kind of novel gas spring control valve and its production and processing method and gas spring |
| CN111168380A (en) * | 2020-01-17 | 2020-05-19 | 宁波力品格自动化科技有限公司 | Automatic assembly machine for controllable gas spring valve members |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150523 |
|
| EXPY | Termination of patent right or utility model |