CN205779641U - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN205779641U CN205779641U CN201620504620.3U CN201620504620U CN205779641U CN 205779641 U CN205779641 U CN 205779641U CN 201620504620 U CN201620504620 U CN 201620504620U CN 205779641 U CN205779641 U CN 205779641U
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- CN
- China
- Prior art keywords
- valve
- sheet rubber
- film
- plate
- valve film
- 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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- Check Valves (AREA)
Abstract
This utility model relates to a kind of check valve and dosing pump.Including valve body, valve plate, exhaust chamber, admission chamber and inner chamber, for isolating the first valve film of exhaust chamber and inner chamber, for isolating the second valve film of admission chamber and inner chamber；Described first valve film and described second valve film are arranged between valve plate and valve body, first valve film and the second valve film structure is identical and is constituted by corrosion resistant plate and sheet rubber, sheet rubber is symmetricly set on corrosion resistant plate both sides, and corrosion resistant plate is additionally provided with the chute excessively penetrated.The steel part imported and exported in check valve of former dosing pump is sealed firmly the flexible sealing changing elastomeric material into, thus the dosing pump of the check valve of this utility model design will be used to need not specific installation direction because sealing part abrasion causes leakage or affects the precision of pump because solid particle inserts sealing surface simultaneously.
Description
Technical field
This utility model belongs to valve field, is specifically related to a kind of check valve.
Background technology
The import and export check valve of dosing pump at present, generally use dead-weight spherical valve or spring spherical valve, such check valve mainly includes valve ball, valve seat, spring (dead-weight does not has spring), such device is the most highly developed, but they are implicitly present in a lot of shortcoming: 1, valve ball seals for hard with valve seat, material hardness and toughness to valve seat have high requirement, are otherwise easy to because the prooving of valve seat causes leakage, thus affect the precision of pump；If 2, the liquid that dosing pump is carried contains solid particle, solid particle inserts sealing surface can affect the sealing of valve, thus generally imports and exports at pump and all install 2 spherical valves, adds the overall dimensions of cost and pump；3, spherical valve must be installed vertically, limits the installation direction of dosing pump.
Utility model content
The problem existed for prior art, the purpose of this utility model is to propose the technical scheme of a kind of check valve.
Described a kind of check valve, it is characterised in that: include valve body, valve plate, exhaust chamber, admission chamber, inner chamber, for isolating the first valve film of exhaust chamber and inner chamber, for isolating the second valve film of admission chamber and inner chamber；Described first valve film and described second valve film are arranged between described valve plate and described valve body, first valve film and the second valve film structure is identical and is constituted by corrosion resistant plate and sheet rubber, sheet rubber is symmetricly set on corrosion resistant plate both sides, and corrosion resistant plate is additionally provided with the chute excessively penetrated；The position that described valve plate contacts with the sheet rubber on described first valve film is provided with the first bulge loop, and the position that described valve body contacts with the sheet rubber on described second valve film is provided with the second bulge loop, is provided with sealing ring between valve body and valve plate.
Described a kind of check valve, it is characterised in that: described corrosion resistant plate is circular, and described sheet rubber is also circular.
Described a kind of check valve, it is characterised in that: the described corrosion resistant plate center of circle overlaps with the described sheet rubber center of circle.
Described a kind of check valve, it is characterised in that: described chute of crossing is arranged around sheet rubber.
Described a kind of check valve, it is characterised in that: described chute of crossing is constituted around a point groove for sheet rubber at equal intervals by three.
Described a kind of check valve, it is characterised in that: described chute of crossing is made up of a point groove for a plurality of sheet rubber of cincture at equal intervals.
Described a kind of check valve, it is characterised in that: position relative with the first valve film on described valve body is provided with the first restriction projection, and position relative with the second valve film on described valve plate is provided with the second restriction projection.
Described a kind of check valve, it is characterised in that: described first bulge loop is structure as a whole with described valve plate, and described second bulge loop is structure as a whole with described valve body.
The beneficial effects of the utility model are: steel part in the import and export check valve of former dosing pump seals flexible sealing firmly that change elastomeric material into, thus the dosing pump of the check valve of this utility model design will be used to need not specific installation direction because sealing part abrasion causes leakage or affects the precision of pump because solid particle inserts sealing surface simultaneously.Cross chute to arrange around sheet rubber, cross chute and be made up of point groove of three or a plurality of sheet rubber of cincture at equal intervals, effective area of passage can be made to maximize and increase valve film elastic deformation amount.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of this utility model check valve；
Fig. 2 is the schematic diagram of the first valve film side view；
Fig. 3 is the schematic diagram of the first valve film top view；
Wherein: 1-valve body, 2-valve plate, 3-the first valve film, 4-the first bulge loop, 5-sealing ring, 6-the second valve film, 7-the second bulge loop, 8-sheet rubber, 9-corrosion resistant plate, 10-crosses chute, 11-first limits projection, and 12-second limits projection, a-exhaust chamber, b-admission chamber, c-inner chamber.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described in detail.
As depicted in figs. 1 and 2, check valve of the present utility model includes valve body 1, valve plate 2, exhaust chamber a, admission chamber b and inner chamber c, for isolating first valve film 3 of exhaust chamber a and inner chamber c, for isolating second valve film 6 of admission chamber b and inner chamber c；First valve film 3 and the second valve film 6 are arranged between valve plate 2 and valve body 1, first valve film 3 is identical with the second valve film 6 structure and is constituted with sheet rubber 8 by corrosion resistant plate 9, sheet rubber 8 is symmetricly set on corrosion resistant plate 9 both sides, corrosion resistant plate 9 is additionally provided with and is perforated through chute 10, corrosion resistant plate 9 is circular, sheet rubber 8 is also circular, their center of circle overlaps, cross chute 10 to arrange around sheet rubber 8, it is so designed that, when being all for allowing the first valve film 3 in working order, each position uniform force, has longer service life；The reason that second valve film 6 is so designed that is in like manner.
Preferably, cross chute and be made up of point groove of three or a plurality of sheet rubber of cincture at equal intervals, each position more uniform force when making two valve films in working order, make effective area of passage maximize simultaneously and increase valve film elastic deformation amount.
Position relative with the first valve film 3 on valve body 1 is provided with the first restriction projection 11, for limiting the first excessive deformation of valve film；Position relative with the second valve film 6 on valve plate 2 is provided with the second restriction projection 12, for limiting the second excessive deformation of valve film 6.
The position that valve plate 2 contacts with the sheet rubber 8 on the first valve film 3 is provided with the first bulge loop 4, and the first bulge loop 4 is arranged on valve plate 2, and sheet rubber 8 can be completely covered on the first bulge loop 4, and liquid can be stoped to flow the most mutually between inner chamber c and exhaust chamber a；First valve film 3 leaves the first bulge loop 4 slightly, and liquid can flow to the gap between the first valve film 3 and valve plate 2 from inner chamber c, then crosses chute stream (10) to exhaust chamber a the first valve film 3 from crossing；Preferably, the first bulge loop 4 is structure as a whole with valve plate 2, it is to avoid liquid is from the clearance leakage between the first bulge loop 4 and valve plate 2.
The position that valve body 1 contacts with the sheet rubber 8 on the second valve film 6 is provided with the second bulge loop 7, second bulge loop 7 is arranged on valve body 1, sheet rubber on second valve film 6 can be completely covered on the second bulge loop 7, and liquid can be stoped to flow the most mutually between inner chamber c and admission chamber b；Second valve film 6 leaves the second bulge loop 7 slightly, and liquid can flow to the gap between second diaphragm 6 and valve body 1 from admission chamber b, then crosses chute stream (10) to inner chamber c from second diaphragm 6；Preferably, the second bulge loop 7 is structure as a whole with valve body 1, it is to avoid liquid is from the clearance leakage between the second bulge loop 7 and valve body 1.
Preferably, sealing ring 5 it is provided with between valve body 1 and valve plate 2, it is to avoid liquid clearance leakage between them.
The work process of dosing pump of the present utility model:
1, when dosing pump is in suction stroke, exhaust chamber a and admission chamber b is that the right pressure is more than left side pressure.Now, the sheet rubber on the first valve film 3 can against the first bulge loop 4 on valve plate 2 tightly, stops liquid to flow to exhaust chamber a from inner chamber c；And the liquid in admission chamber b pushes the second valve film 6 open, the sheet rubber on the second valve film 6 is made to disengage the second bulge loop 7 on valve body, form flow channels, the second restriction projection 12 on valve plate 2 limits the second valve film 6 and continues excessive deformation, at this moment in admission chamber b, liquid just can flow to the gap between the second valve block 6 and valve body 1 from admission chamber b, flows to inner chamber c by the chute of crossing on the second valve block 6.
2, when dosing pump is in discharge stroke, exhaust chamber a and admission chamber b is that left side pressure is more than the right pressure.Now, the sheet rubber on the second valve film 6 can against the second bulge loop 7 on valve body 1 tightly, stops liquid to flow to admission chamber b from inner chamber c；And the liquid in inner chamber c pushes the first valve film 3 open, the first bulge loop 4 that sheet rubber on first valve film 3 disengages on valve plate 2 forms flow channels, the first restriction projection 11 on valve body 1 limits the first valve film 3 and continues excessive deformation, at this moment in inner chamber c, liquid just can flow to the gap between the first valve block 3 and valve plate 2 from inner chamber c, flows to exhaust chamber a by the chute of crossing on the first valve film 3.
Claims (8)
1. a check valve, it is characterised in that: include valve body (1), valve plate (2), exhaust chamber (a), admission chamber (b), inner chamber (c), be used for isolating exhaust chamber (a) and first valve film (3) of inner chamber (c), be used for the second valve film (6) of isolating admission chamber (b) with inner chamber (c)；Described first valve film (3) and described second valve film (6) are arranged between described valve plate (2) and described valve body (1), first valve film (3) is identical with the second valve film (6) structure and is constituted with sheet rubber (8) by corrosion resistant plate (9), sheet rubber (8) is symmetricly set on corrosion resistant plate (9) both sides, and corrosion resistant plate (9) is additionally provided with the chute (10) excessively penetrated；The position that described valve plate (2) contacts with the sheet rubber on described first valve film (3) is provided with the first bulge loop (4), the position that described valve body (1) contacts with the sheet rubber on described second valve film (6) is provided with the second bulge loop (7), is provided with sealing ring (5) between valve body (1) and valve plate (2).
A kind of check valve the most according to claim 1, it is characterised in that: described corrosion resistant plate (9) is circular, and described sheet rubber (8) is also circular.
A kind of check valve the most according to claim 2, it is characterised in that: described corrosion resistant plate (9) center of circle overlaps with described sheet rubber (8) center of circle.
4. according to a kind of check valve described in claim 3, it is characterised in that: described chute (10) of crossing is arranged around sheet rubber (8).
5. according to a kind of check valve described in claim 4, it is characterised in that: described chute (10) of crossing is constituted around a point groove for sheet rubber (8) at equal intervals by three.
6. according to a kind of check valve described in claim 4, it is characterised in that: described chute (10) of crossing is made up of a point groove for a plurality of cincture sheet rubber (8) at equal intervals.
7. according to a kind of check valve described in claim 1, it is characterized in that: the upper position relative with the first valve film (3) of described valve body (1) is provided with the first restriction projection (11), the upper position relative with the second valve film (6) of described valve plate (2) is provided with the second restriction projection (12).
8. according to a kind of check valve described in claim 1, it is characterised in that: described first bulge loop (4) is structure as a whole with described valve plate (2), and described second bulge loop (7) is structure as a whole with described valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620504620.3U CN205779641U (en) | 2016-05-30 | 2016-05-30 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620504620.3U CN205779641U (en) | 2016-05-30 | 2016-05-30 | A kind of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205779641U true CN205779641U (en) | 2016-12-07 |
Family
ID=59978561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620504620.3U Expired - Fee Related CN205779641U (en) | 2016-05-30 | 2016-05-30 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205779641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050641A (en) * | 2016-05-30 | 2016-10-26 | 浙江爱力浦科技股份有限公司 | Check valve and metering pump |
-
2016
- 2016-05-30 CN CN201620504620.3U patent/CN205779641U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050641A (en) * | 2016-05-30 | 2016-10-26 | 浙江爱力浦科技股份有限公司 | Check valve and metering pump |
| CN106050641B (en) * | 2016-05-30 | 2018-01-02 | 浙江爱力浦科技股份有限公司 | A kind of check valve and measuring pump |
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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: 20161207 Termination date: 20210530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |