CN102207152A - Compression type gas spring with double rods - Google Patents
Compression type gas spring with double rods Download PDFInfo
- Publication number
- CN102207152A CN102207152A CN2011101364285A CN201110136428A CN102207152A CN 102207152 A CN102207152 A CN 102207152A CN 2011101364285 A CN2011101364285 A CN 2011101364285A CN 201110136428 A CN201110136428 A CN 201110136428A CN 102207152 A CN102207152 A CN 102207152A
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- CN
- China
- Prior art keywords
- piston
- piston rod
- cylinder barrel
- gas spring
- compression type
- 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.)
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- Fluid-Damping Devices (AREA)
Abstract
The invention provides a compression type gas spring with double rods, relating to the field of springs, shock absorbers and shock absorbing devices, in particular to a structure of a gas spring. The compression type gas spring comprises a cylinder barrel, a piston and a first piston rod, wherein the piston is arranged in the cylinder barrel, the first piston rod is fixedly connected with one side of the piston and is arranged at one end of the cylinder barrel in a penetrating manner, the piston is axially provided with a through hole , a second piston rod is fixedly connected to the other side of the piston and is arranged at the other end of the cylinder barrel in a penetrating manner, and the diameter of the second piston rod is not equal to the diameter of the first piston rod. Based on the design in the invention, sectional diameters of two ends of the piston rods must be different (a thinner end and a thicker end), the two piston rods are connected to the same piston which divides one air chamber into two air chambers; when the two air chambers are communicated with each other through the through hole, and compressed gases are filled in the air chambers, an output stretching force can be produced to one end of the piston rod with a smaller sectional area (thicker piston rod) due to different sectional areas at two sides of the piston; and the thicker piston rod is stretched out when no external force exists.
Description
Technical field
The present invention relates to the field of a kind of spring, vibration damper, damping device, particularly the structure of air spring.
Background technique
Air spring is a kind ofly can play support, buffering, braking, highly regulate and the accessory of function such as angle adjustment, is widely used in fields such as medical equipment, automobile, furniture, Weaving device, machine-building.Principle is to charge into inert gas or gas mixture in airtight cylinder barrel, make the pressure in the cavity be higher than atmospheric several times or tens times, thereby the pressure difference that the cross-section area that utilizes piston rod produces less than the cross-section area of piston realize the motion of piston rod.At present, air spring is a single pole single-acting structure, and two bar compression-type air spring structures are in space state.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, but provide a kind of two ends flexible two bar compression-type air springs.
The object of the present invention is achieved like this: two bar compression-type air springs, comprise cylinder barrel, piston and first piston bar, piston is arranged in the cylinder barrel, the first piston bar is fixedlyed connected with a side of piston, the first piston bar is set in an end of cylinder barrel, and described piston shaft is to through hole being set, fixedly connected second piston rod of the opposite side of piston, second piston rod is set in the other end of described cylinder barrel, and the diameter of the diameter of second piston rod and first piston bar does not wait.
The present invention is by above design, and footpath, piston rod cross section, two ends must different (one thick one is thin), and the two-piston bar is connected on the same piston, and piston is divided into two air chamber; Air chamber is ganged up by through hole when both sides, charge into pressurized gas after, because of the difference of piston both sides sectional area, can produce output stretching force to an end of sectional area little (piston rod is thick).The heavy manual labour stopper rod is extended under the situation of no external force effect.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Embodiment
As shown in Figure 1, be two bar compression-type air springs, comprise cylinder barrel 4, piston 3, first piston bar 1 and second piston rod 5, piston 3 is arranged in the cylinder barrel 4, and piston 3 axially is provided with through hole 2, between piston 3 and the cylinder barrel 4 seal ring 6 is set, first piston bar 1 is fixedlyed connected with a side of piston 3, second piston rod 5 is fixedlyed connected with the opposite side of piston 3, and the first piston bar 1 and second piston rod 5 are set in the two ends of cylinder barrel 4 respectively, and the diameter of the diameter of second piston rod 5 and first piston bar 1 does not wait.
Claims (1)
1. two bar compression-type air springs, comprise cylinder barrel, piston and first piston bar, piston is arranged in the cylinder barrel, the first piston bar is fixedlyed connected with a side of piston, the first piston bar is set in an end of cylinder barrel, it is characterized in that: described piston shaft is to through hole being set, fixedly connected second piston rod of the opposite side of piston, second piston rod is set in the other end of described cylinder barrel, and the diameter of the diameter of second piston rod and first piston bar does not wait.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101364285A CN102207152A (en) | 2011-05-25 | 2011-05-25 | Compression type gas spring with double rods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101364285A CN102207152A (en) | 2011-05-25 | 2011-05-25 | Compression type gas spring with double rods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207152A true CN102207152A (en) | 2011-10-05 |
Family
ID=44696147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101364285A Pending CN102207152A (en) | 2011-05-25 | 2011-05-25 | Compression type gas spring with double rods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102207152A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629287A (en) * | 2013-12-04 | 2014-03-12 | 孙肃松 | Stretching type air spring |
| CN107088140A (en) * | 2017-05-24 | 2017-08-25 | 同济大学 | A kind of built-in air-pressure type wearable lower limb servicing unit |
-
2011
- 2011-05-25 CN CN2011101364285A patent/CN102207152A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629287A (en) * | 2013-12-04 | 2014-03-12 | 孙肃松 | Stretching type air spring |
| CN107088140A (en) * | 2017-05-24 | 2017-08-25 | 同济大学 | A kind of built-in air-pressure type wearable lower limb servicing unit |
| CN107088140B (en) * | 2017-05-24 | 2019-09-27 | 同济大学 | A wearable lower limb assist device with built-in air pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111005 |