CN202834177U - Plastic diaphragm valve - Google Patents
Plastic diaphragm valve Download PDFInfo
- Publication number
- CN202834177U CN202834177U CN 201220412331 CN201220412331U CN202834177U CN 202834177 U CN202834177 U CN 202834177U CN 201220412331 CN201220412331 CN 201220412331 CN 201220412331 U CN201220412331 U CN 201220412331U CN 202834177 U CN202834177 U CN 202834177U
- Authority
- CN
- China
- Prior art keywords
- valve
- screw
- nut
- bonnet
- valve body
- 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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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a plastic diaphragm valve. The diaphragm valve comprises a valve body, a bonnet, a hand wheel, an indicating cover and a disc, wherein the bonnet is fixedly installed at the upper end of the valve body through a plurality of screws evenly distributed at the upper end of the bonnet, a diaphragm pad is clamped and installed between the bonnet and the valve body, a valve screw is mounted at the upper end of the bonnet, the hand wheel is connected to the outer side of the valve screw, a valve nut is sleeved at the upper end of the valve screw, an indicating nut is vertically mounted in the middle of the upper end inside the valve screw, a lock screw is mounted at the upper end inside the indicating nut, a connecting bar is connected to the lower end of the lock screw, connected with the valve screw through threads, penetrates through the valve screw, and is connected with the disc arranged at the lower end of the bonnet through a cotter pin at the lower end, and two support connecting holes are parallelly arranged in the middle of the lower end of the valve body. According to the diaphragm valve, the structure is simple, the appearance is attractive, a handle is provided with a locking function through rotation, the service life is prolonged, and a lower support mounting hole is provided to prevent pipes connected with the handle from displacement during twisting.
Description
Technical field
The utility model relates to the industrial valve field, particularly relates to a kind of plastic diaphragm valve.
Background technique
Membrane valve adopts a barrier film made from soft material, and body cavity and valve gap inner chamber and driver part are separated, and is widely used in now every field, and the fluid resistance of membrane valve is little, can be used for containing the medium of hard suspended matter; Because medium only contacts with barrier film with valve body, so need not stuffing box, does not have the gland leakage problem, without the corrosion possibility, wherein the fine corrosion resistance of plastic diaphragm valve mainly is suitable for and chemical field to valve stem part.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of plastic diaphragm valve, and is simple in structure, beautiful shape, the rotation of its handgrip has locking function, improved working life, be provided with the lower support frame mounting hole, prevented that the pipeline that connects when handgrip turns is subjected to displacement.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of plastic diaphragm valve is provided, comprise valve body, valve gap, handwheel, indication cover and flap, described valve gap is fixed on the upper end of valve body by its equally distributed several screws in upper end, clamp between described valve gap and the valve body barrier film pad is installed, the upper end of described valve gap is equipped with valve screw, the outside of described valve screw is connected and installed with handwheel, the upper end cover of described valve screw has a valve nut, the inner upper end of described valve screw vertically is equipped with an indication nut between two parties, described indication nut inner hollow, its inner upper end is equipped with a lock screw, the lower end of described lock screw is connected with a connecting rod, described connecting rod is connected with valve screw by screw thread, described connecting rod passes valve screw, its lower end links to each other by the flap of cotter pin with the valve gap lower end, the centre of described barrier film pad is installed with upper end and the attachment screw that the attaching nut of flap centre is connected, and has side by side two support attachment holes in the middle of the lower end of described valve body.
The upper end of described handwheel is equipped with the indication cover between two parties.
Inlay on the upper end outer wall of described valve nut a back-up ring is installed.
The lower end of described barrier film pad is connected and installed with the diaphragm that size shape and barrier film pad match.
Beneficial effect
The utility model relates to a kind of plastic diaphragm valve, simple in structure, have advantages of following: (1) has installed locking nut additional in the valve nut of upper end, turns handwheel to a dead point when making each throttle down just passable, make throttle down more laborsaving, improved the working life of valve; (2) valve body lower end is provided with the support attachment hole, and the pipeline of valve both sides can be not stressed when turning handwheel after being connected and fixed with support, prolonged the working life of pipeline; (3) valve body adopts PVDF or the engineering plastics such as PVC or RPP, has improved the corrosion resistance of valve.
Description of drawings
Fig. 1 be the utility model structure partly cut open figure;
Fig. 2 is the outline drawing of the utility model structure.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments only are used for explanation the utility model and are not used in the scope of the present utility model that limits.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Shown in Fig. 1-2, mode of execution of the present utility model relates to a kind of plastic diaphragm valve, comprise valve body 11, valve gap 15, handwheel 5, indication cover 1 and flap 8, described valve gap 15 is fixed on the upper end of valve body 11 by its equally distributed several screws in upper end, clamp between described valve gap 15 and the valve body 11 barrier film pad 13 is installed, the upper end of described valve gap 15 is equipped with valve screw 16, the outside of described valve screw 16 is connected and installed with handwheel 5, the upper end cover of described valve screw 16 has a valve nut 6, the inner upper end of described valve screw 16 vertically is equipped with an indication nut 2 between two parties, described indication nut 2 inner hollow, its inner upper end is equipped with a lock screw 3, the lower end of described lock screw 3 is connected with a connecting rod 17, described connecting rod 17 is connected with valve screw 16 by screw thread, described connecting rod 17 passes valve screw 16, its lower end links to each other by the flap 8 of cotter pin 7 with valve gap 15 lower ends, the centre of described barrier film pad 13 is installed with upper end and the attachment screw 10 that the attaching nut 14 of flap 8 centres is connected, and has side by side two support attachment holes 11 in the middle of the lower end of described valve body 11.
The upper end of described handwheel 5 is equipped with indication cover 1 between two parties, inlays on the upper end outer wall of described valve nut 6 back-up ring 4 is installed, and the lower end of described barrier film pad 13 is connected and installed with the diaphragm 12 that size shape and barrier film pad 13 match.
Claims (4)
1. plastic diaphragm valve, comprise valve body (11), valve gap (15), handwheel (5), indication cover (1) and flap (8), it is characterized in that, described valve gap (15) is fixed on the upper end of valve body (11) by its equally distributed several screws in upper end, clamp between described valve gap (15) and the valve body (11) barrier film pad (13) is installed, the upper end of described valve gap (15) is equipped with valve screw (16), the outside of described valve screw (16) is connected and installed with handwheel (5), the upper end cover of described valve screw (16) has a valve nut (6), the inner upper end of described valve screw (16) vertically is equipped with an indication nut (2) between two parties, described indication nut (2) inner hollow, its inner upper end is equipped with a lock screw (3), the lower end of described lock screw (3) is connected with a connecting rod (17), described connecting rod (17) is connected with valve screw (16) by screw thread, described connecting rod (17) passes valve screw (16), its lower end links to each other by the flap (8) of cotter pin (7) with valve gap (15) lower end, the centre of described barrier film pad (13) is installed with upper end and the attachment screw (10) that the attaching nut (14) of flap (8) centre is connected, and has side by side two support attachment holes (11) in the middle of the lower end of described valve body (11).
2. a kind of plastic diaphragm valve according to claim 1 is characterized in that: the upper end of described handwheel (5) is equipped with indication cover (1) between two parties.
3. a kind of plastic diaphragm valve according to claim 1 is characterized in that: inlay on the upper end outer wall of described valve nut (6) back-up ring (4) is installed.
4. a kind of plastic diaphragm valve according to claim 1 is characterized in that: the lower end of described barrier film pad (13) is connected and installed with the diaphragm (12) that size shape and barrier film pad (13) match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412331 CN202834177U (en) | 2012-08-20 | 2012-08-20 | Plastic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412331 CN202834177U (en) | 2012-08-20 | 2012-08-20 | Plastic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834177U true CN202834177U (en) | 2013-03-27 |
Family
ID=47945886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412331 Expired - Fee Related CN202834177U (en) | 2012-08-20 | 2012-08-20 | Plastic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485369A (en) * | 2014-09-18 | 2016-04-13 | 江苏开能华宇环保设备有限公司 | Novel V-type diaphragm valve |
| CN106195322A (en) * | 2015-05-08 | 2016-12-07 | 江苏开能华宇环保设备有限公司 | A kind of V-type two-sided diaphragm valve |
-
2012
- 2012-08-20 CN CN 201220412331 patent/CN202834177U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485369A (en) * | 2014-09-18 | 2016-04-13 | 江苏开能华宇环保设备有限公司 | Novel V-type diaphragm valve |
| CN106195322A (en) * | 2015-05-08 | 2016-12-07 | 江苏开能华宇环保设备有限公司 | A kind of V-type two-sided diaphragm valve |
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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: 20130327 Termination date: 20150820 |
|
| EXPY | Termination of patent right or utility model |