CN205401906U - Control valve rubber diaphragm - Google Patents
Control valve rubber diaphragm Download PDFInfo
- Publication number
- CN205401906U CN205401906U CN201620238621.8U CN201620238621U CN205401906U CN 205401906 U CN205401906 U CN 205401906U CN 201620238621 U CN201620238621 U CN 201620238621U CN 205401906 U CN205401906 U CN 205401906U
- Authority
- CN
- China
- Prior art keywords
- film sheet
- piston rod
- rubber film
- diaphragm
- control 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.)
- Expired - Fee Related
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- Diaphragms And Bellows (AREA)
Abstract
The utility model belongs to rubber product field specifically relates to a control valve rubber diaphragm, including the rubber membrane piece, with the integrative sealing washer of rubber membrane piece, rubber membrane piece center be equipped with vertically piston rod erection column with it, piston rod erection column and rubber membrane piece be integrated into one piece. The utility model discloses technical scheme's characteristics are reasonable in design, simple structure, and simple to operate, sealing performance is good, long service life.
Description
Technical field
This utility model belongs to rubber product field, controls valve rubber diaphragm more particularly to one.
Background technology
Rubber diaphragm is mainly used in the valve of flow, pressure, differential, liquid level, thermostat accumulated heat compensation etc., regulates in valve, automation hunting gear, switch sum counter.It is advantageous that functional reliability is high, plyability is good, long working life, cost is low.
The structure of existing rubber diaphragm is usually: be made up of diaphragm body and the connecting hole being positioned at diaphragm body central position, its free end is forge piece of step type structure, end is provided with external screw thread and its diameter of axle less than gonnecting rod body aperture, and interlinking lever end is through the connecting hole of diaphragm and is fastened by pressing diaphragm with nut and is installed on diaphragm connecting rod free end.
But diaphragm is easily generated plastic deformation because of pressurized, its phenomenon being in that to there is stress concentration on the periphery of connecting rod fixed installation position, and also can receive the effect of alternation moment, owing to diaphragm body is relatively thin, damage is very easily caused in the position concentrated at stress, thus causing the diaphragm cannot normal operation.The use of former diaphragm is assembled into edge and housing crush seal, makes intracavity keep sealing state.Generally want porose in the middle of diaphragm, piston rod traverse diaphragm, diaphragm both sides sealing, in fact it could happen that reveal, cause controlling defective valve.The design matching requirements of prior art are high, and the manufacture difficulty of diaphragm is big, it is necessary to ensure sealing surface zero-fault everywhere.
Utility model content
Technical problem to be solved in the utility model is in that to provide a kind of easy for installation, seals reliable, the control valve rubber diaphragm of long service life.
In order to achieve the above object, this utility model be the technical scheme is that a kind of control valve rubber diaphragm, including rubber film sheet, sealing ring with described rubber film sheet one, described rubber film sheet center is provided with piston rod mounting post normal thereto, and described piston rod mounting post and rubber film sheet are formed in one.
During use, sealing ring is installed with housing seal to be installed, and piston mounting post is connected with piston rod, and isolation inside and outside housing is opened by the rich diaphragm of rubber, not only play and seal but also left and right that aspect controls, whole process is installed simple, and piston rod, without pass through rubber film sheet, improves the service life of element.
It is provided with collar in the middle of described piston rod mounting post.Collar the connection facilitating piston rod is set, only piston mounting post need to be inserted in the corresponding cavity volume of piston rod, collar plays the effect of location.
Described piston rod mounting post and the one-body molded place of rubber film sheet are provided with holder edge；The one side relative with piston rod mounting post of described rubber film sheet is provided with thickening layer, and described thickening layer is one-body molded with rubber film sheet.Thickening layer can play strengthens the position that protection rubber film sheet contacts with other elements, and the intensity of rubber film sheet and piston rod junction is strengthened on holder edge, it is possible to improve the service life of product.
Described thickening layer is more than described holder edge.
Described rubber film sheet is provided with some concentric annular projections.Annular projection can strengthen the shock strength of rich diaphragm.
Described rubber film sheet and described sealing ring joint are provided with absorbing pleat, and described absorbing pleat and described rubber film sheet, sealing ring are structure as a whole.Absorbing pleat can absorb to piston vibration of bar, it is ensured that the sealing between sealing ring and housing.
The upper edge of described sealing ring is provided with flange collar.Flange collar adds the contact pressure of sealing ring and housing installation place, improves tightness.
Described collar is arc.Piston rod is facilitated to install smoothly.
The feature of technical solutions of the utility model is reasonable in design, and simple in construction is easy for installation, good seal performance, just uses the life-span long.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation controlling valve rubber diaphragm of this utility model.
Detailed description of the invention
Below in conjunction with Figure of description this utility model made and elaborating:
A kind of control valve rubber diaphragm as shown in Figure 1, including rubber film sheet 1, with the sealing ring 2 of described rubber film sheet one, described rubber film sheet 1 center is provided with piston rod mounting post 3 normal thereto, and described piston rod mounting post 3 and rubber film sheet 1 are formed in one.
During use, sealing ring is installed with housing seal to be installed, and piston mounting post is connected with piston rod, and isolation inside and outside housing is opened by the rich diaphragm of rubber, not only play and seal but also left and right that aspect controls, whole process is installed simple, and piston rod, without pass through rubber film sheet, improves the service life of element.
It is provided with collar 4 in the middle of described piston rod mounting post 3.Collar the connection facilitating piston rod is set, only piston mounting post need to be inserted in the corresponding cavity volume of piston rod, collar plays the effect of location.
Described piston rod mounting post 3 and the one-body molded place of rubber film sheet 1 are provided with holder along 5；The one side relative with piston rod mounting post 3 of described rubber film sheet 1 is provided with thickening layer 6, and described thickening layer 6 is one-body molded with rubber film sheet 1.Thickening layer can play strengthens the position that protection rubber film sheet contacts with other elements, and the intensity of rubber film sheet and piston rod junction is strengthened on holder edge, it is possible to improve the service life of product.
Described thickening layer 6 more than described holder along 5.
Described rubber film sheet 1 is provided with some concentric annular projections 7.Annular projection can strengthen the shock strength of rich diaphragm.
Described rubber film sheet 1 and described sealing ring 2 joint are provided with absorbing pleat 8, and described absorbing pleat 8 is structure as a whole with described rubber film sheet 1, sealing ring 2.Absorbing pleat can absorb to piston vibration of bar, it is ensured that the sealing between sealing ring and housing.
The upper edge of described sealing ring is provided with flange collar 9.Flange collar adds the contact pressure of sealing ring and housing installation place, improves tightness.
Described collar 4 is arc.Piston rod is facilitated to install smoothly.
The feature of technical solutions of the utility model is reasonable in design, and simple in construction is easy for installation, good seal performance, long service life.
Claims (8)
1. one kind controls valve rubber diaphragm, it is characterized in that, including rubber film sheet, with the sealing ring of described rubber film sheet one, described rubber film sheet center is provided with piston rod mounting post normal thereto, and described piston rod mounting post and rubber film sheet are formed in one.
2. a kind of control valve rubber diaphragm as claimed in claim 1, it is characterised in that be provided with collar in the middle of described piston rod mounting post.
3. a kind of control valve rubber diaphragm as claimed in claim 1, it is characterised in that described piston rod mounting post and the one-body molded place of rubber film sheet are provided with holder edge；The one side relative with piston rod mounting post of described rubber film sheet is provided with thickening layer, and described thickening layer is one-body molded with rubber film sheet.
4. a kind of control valve rubber diaphragm as claimed in claim 3, it is characterised in that described thickening layer is more than described holder edge.
5. a kind of control valve rubber diaphragm as claimed in claim 1, it is characterised in that described rubber film sheet is provided with some concentric annular projections.
6. a kind of control valve rubber diaphragm as claimed in claim 1, it is characterised in that described rubber film sheet and described sealing ring joint are provided with absorbing pleat, and described absorbing pleat and described rubber film sheet, sealing ring are structure as a whole.
7. a kind of control valve rubber diaphragm as claimed in claim 1, it is characterised in that the upper edge of described sealing ring is provided with flange collar.
8. a kind of control valve rubber diaphragm as claimed in claim 2, it is characterised in that described collar is arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238621.8U CN205401906U (en) | 2016-03-23 | 2016-03-23 | Control valve rubber diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238621.8U CN205401906U (en) | 2016-03-23 | 2016-03-23 | Control valve rubber diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205401906U true CN205401906U (en) | 2016-07-27 |
Family
ID=56419166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620238621.8U Expired - Fee Related CN205401906U (en) | 2016-03-23 | 2016-03-23 | Control valve rubber diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205401906U (en) |
-
2016
- 2016-03-23 CN CN201620238621.8U patent/CN205401906U/en not_active Expired - Fee Related
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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: 20160727 Termination date: 20190323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |