CN203796845U - Sealing gasket for gas spring - Google Patents
Sealing gasket for gas spring Download PDFInfo
- Publication number
- CN203796845U CN203796845U CN201420221541.2U CN201420221541U CN203796845U CN 203796845 U CN203796845 U CN 203796845U CN 201420221541 U CN201420221541 U CN 201420221541U CN 203796845 U CN203796845 U CN 203796845U
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- CN
- China
- Prior art keywords
- sealing gasket
- gasket body
- projection
- air spring
- sealing
- 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
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Abstract
The utility model discloses a sealing gasket for a gas spring and belongs to the field of accessories for office furniture. The sealing gasket comprises a sealing gasket body in a ring structure; the outer periphery of the sealing gasket body is provided with two ring protrusions in parallel, namely a first protrusion and a second protrusion; the right surface of the sealing gasket body is provided with a groove; the inner periphery of the sealing gasket body is provided with two ring protrusions in parallel, namely a third protrusion and a fourth protrusion. The problem that high pressure impact that the sealing gasket of the prior gas spring causes decline in sealing performance decline and gradual loss in pressure flow function is solved; through the double-row circular protrusions, sealing performance is improved and service life is prolonged, and pressure flow stability is ensured for products during long-term using.
Description
Technical field
The utility model belongs to the technical field of Office furniture accessory, more particularly, relates to a kind of sealing gasket of air spring.
Background technique
Air spring (gas spring) is a kind ofly can play support, buffering, braking, highly regulate and the industrial accessory of the function such as angle adjustment.Air spring is mainly used in Office seating, principle is in airtight pressure cylinder, to be filled with inert gas or gas mixture, make pressure in cavity higher than atmospheric several times or tens times, thereby the pressure difference that the cross-section area that utilizes the cross-section area of piston rod to be less than piston produces realize the motion of piston rod.Different from mechanical spring, air spring has the linear elastic curve of being close to.
The sealing gasket of air spring is the Sealing that rubber material is made, it plays a part sealing in product, the gasket structure of current use for single port structure (be that sealing gasket inner peripheral surface and outer circumferential face all only have one deck projection, as shown in Figure 1), during air spring installment work, product elevating movement, single port sealing gasket is subject to the impact of high pressure, because sealing gasket is single port sealing, cause the mobile function loss gradually of pressure of product, can not guarantee the stability of air spring product.
As Ningguo City's model that rubber and plastic auto parts and components Co., Ltd produces of increasing income is the gas spring sealing ring of 1306 types, simple in structure, outer circumferential face and inner peripheral surface are all smooth flat, and sealing is not good, and friction factor is little, therefore working life is not long.
Model utility content
1. the technical problem that model utility will solve
For the sealing gasket of the air spring existing in prior art, be subject to the impact of high pressure, sealability declines, mobile function is the problem of loss gradually, the invention provides a kind of air spring Sealing, it is improved to twoport sealing configuration by single port sealing configuration of the prior art, when the impact flow being under pressure, guaranteed the stability of air spring product.
2. technological scheme
For achieving the above object, the technological scheme that the utility model provides is:
A kind of sealing gasket of air spring, comprise sealing gasket body, described sealing gasket body is circular ring, the parallel two circle annular projections that are provided with on the outer circumferential face of sealing gasket body, i.e. the first projection and the second projection, on the right surface of sealing gasket body, be provided with groove, the parallel two circle annular projections that are provided with, i.e. the 3rd projection and the 4th projection on the inner peripheral surface of sealing gasket body.
Improve further, described groove is circular, and the cross section of annular groove is isosceles trapezoid.
Improve further, the height of the annular projection on the outer circumferential face of described sealing gasket body is 1.5-2.0mm.
Improve further, the thickness of described sealing gasket body is 3.5-5mm.
Improve further, sealing gasket body has two-layer, and it be soft silica gel at the middle and upper levels, and lower floor is rubber, two-layerly up and down connects into an integral body.
3. beneficial effect
The technological scheme that adopts the utility model to provide, compared with prior art, has following beneficial effect:
(1) sealing gasket of a kind of air spring of the present utility model, on the outer circumferential face of sealing gasket body with equal parallel two ring shape raised structures that are provided with on inner peripheral surface, annular projection on the outer circumferential face of sealing gasket body contacts with inner tube sidewall, annular projection on the inner peripheral surface of sealing gasket body contacts with piston rod outer surface, sealing and the working life of the annular projection of this kind of duplicate rows strengthen greatly, have guaranteed product mobile stability of pressure in long-term using process.
(2) sealing gasket of a kind of air spring of the present utility model, material therefor is rubber and silica gel, and wherein sealing gasket body upper strata is soft silica gel, and lower floor is rubber, the upper and lower two-layer sealing effect that an integral body increase has kept product that connects into.
(3) sealing gasket of a kind of air spring of the present utility model, reasonable in design, principle is simple, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is single port bowl grommet type seal of the prior art;
Fig. 2 is the sealing gasket of the air spring in the utility model.
Label declaration in schematic diagram: 1, sealing gasket body; 201, the first projections; 202, the second projection; 301, the 3rd projection; 302, the 4th projection; 4, groove.
Embodiment
In order further to understand content of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.
Embodiment 1
By reference to the accompanying drawings shown in 2, the sealing gasket of a kind of air spring of the present utility model, comprise sealing gasket body 1, described sealing gasket body 1 is circular ring, the parallel two circle annular projections that are provided with on the outer circumferential face of sealing gasket body 1, the first projection 201 and the second projection 202 are provided with groove 4 on the right surface of sealing gasket body 1, the parallel two circle annular projections that are provided with, i.e. the 3rd projection 301 and the 4th projection 302 on the inner peripheral surface of sealing gasket body 1.Described groove 4 is circular, and the cross section of annular groove 4 is isosceles trapezoid.The height of the annular projection on the outer circumferential face of described sealing gasket body 1 is 1.5mm.The thickness of described sealing gasket body 1 is 3.5mm.Described sealing gasket body 1 has two-layer, and it is soft silica gel at the middle and upper levels, and thickness is 2mm, and lower floor is rubber, and thickness is 1.5mm, the upper and lower two-layer integral body that connects into, and during use, bi-material combination seal performance is better.
Embodiment 2
By reference to the accompanying drawings shown in 2, the sealing gasket of a kind of air spring of the present utility model, comprise sealing gasket body 1, described sealing gasket body 1 is circular ring, the parallel two circle annular projections that are provided with on the outer circumferential face of sealing gasket body 1, the first projection 201 and the second projection 202 are provided with groove 4 on the right surface of sealing gasket body 1, the parallel two circle annular projections that are provided with, i.e. the 3rd projection 301 and the 4th projection 302 on the inner peripheral surface of sealing gasket body 1.Described groove 4 is circular, and the cross section of annular groove 4 is isosceles trapezoid, and the lower base angle of this isosceles trapezoid is 60 °, and the global shape design of the trapezium structure design fitted seal pad of such groove 4 makes that the shape of sealing gasket is comparatively stable and processing is convenient.
The height of the annular projection on the outer circumferential face of described sealing gasket body 1 is 1.7mm.The thickness of described sealing gasket body 1 is 4.5mm.Described sealing gasket body 1 has two-layer, and it is soft silica gel at the middle and upper levels, and thickness is 2mm, and lower floor is rubber, and thickness is 2.5mm, the upper and lower two-layer integral body that connects into, and during use, bi-material combination seal performance is better.The surface roughness of sealing gasket is 0.012um, and degree of finish is good; Planeness is 0.002mm, no marking (naked eyes can not be distinguished) almost, and planeness is splendid.
Embodiment 3
The present embodiment is substantially with embodiment 2, and its difference is: the lower base angle of this isosceles trapezoid is 70 °, and the thickness of sealing gasket body 1 is 5mm.Described sealing gasket body 1 has two-layer, and it is soft silica gel at the middle and upper levels, and thickness is 2mm, and lower floor is rubber, and thickness is 3mm, the upper and lower two-layer integral body that connects into, and during use, bi-material combination seal performance is better.The surface roughness of sealing gasket is 0.010um, and degree of finish is good; Planeness is 0.003mm, no marking (naked eyes can not be distinguished) almost, and planeness is splendid.
Sealing gasket project organization in embodiment 2-3, claimant takes into account cost consideration, select suitable roughness, planeness parameter simultaneously, after making sealing gasket coordinate other each component of air spring to install and use, play extraordinary seal action, the sealing gasket on market can not possess so many advantage.Below schematically the utility model and mode of execution thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of mode of execution of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary mode of structure similar to this technological scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (5)
1. the sealing gasket of an air spring, comprise sealing gasket body (1), it is characterized in that described sealing gasket body (1) is circular ring, the parallel two circle annular projections that are provided with on the outer circumferential face of sealing gasket body (1), i.e. the first projection (201) and the second projection (202), on the right surface of sealing gasket body (1), be provided with groove (4), the parallel two circle annular projections that are provided with on the inner peripheral surface of sealing gasket body (1), i.e. the 3rd projection (301) and the 4th projection (302).
2. the sealing gasket of a kind of air spring according to claim 1, is characterized in that: described groove (4) is for circular, and the cross section of annular groove (4) is isosceles trapezoid.
3. the sealing gasket of a kind of air spring according to claim 1 and 2, is characterized in that: the height of the annular projection on the outer circumferential face of described sealing gasket body (1) is 1.5-2.0mm.
4. the sealing gasket of a kind of air spring according to claim 1 and 2, is characterized in that: the thickness of described sealing gasket body (1) is 3.5-5mm.
5. the sealing gasket of a kind of air spring according to claim 1 and 2, is characterized in that: described sealing gasket body (1) has two-layer, and it is soft silica gel at the middle and upper levels, and lower floor is rubber, the upper and lower two-layer integral body that connects into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221541.2U CN203796845U (en) | 2014-04-30 | 2014-04-30 | Sealing gasket for gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420221541.2U CN203796845U (en) | 2014-04-30 | 2014-04-30 | Sealing gasket for gas spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796845U true CN203796845U (en) | 2014-08-27 |
Family
ID=51379057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420221541.2U Expired - Fee Related CN203796845U (en) | 2014-04-30 | 2014-04-30 | Sealing gasket for gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796845U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723662A (en) * | 2018-11-17 | 2019-05-07 | 常兴忠 | A kind of air blower convenient for adjusting air outlet range |
-
2014
- 2014-04-30 CN CN201420221541.2U patent/CN203796845U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723662A (en) * | 2018-11-17 | 2019-05-07 | 常兴忠 | A kind of air blower convenient for adjusting air outlet range |
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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: 20140827 Termination date: 20170430 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |