CN202327328U - Plastic pneumatic diaphragm valve - Google Patents
Plastic pneumatic diaphragm valve Download PDFInfo
- Publication number
- CN202327328U CN202327328U CN2011204808090U CN201120480809U CN202327328U CN 202327328 U CN202327328 U CN 202327328U CN 2011204808090 U CN2011204808090 U CN 2011204808090U CN 201120480809 U CN201120480809 U CN 201120480809U CN 202327328 U CN202327328 U CN 202327328U
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- CN
- China
- Prior art keywords
- diaphragm
- valve
- valve rod
- pneumatic
- spring
- 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 plastic pneumatic diaphragm valve, which consists of a valve body, a diaphragm, a valve clack, a valve rod, a lower cover, an internal diaphragm, an upper cover, a spring, a transparent sight glass, a rubber sleeve and the like. The middle of the valve rod is provided with the valve rod capable of moving vertically; the upper end of the valve rod is mutually connected with a pneumatic execution unit; the lower end of the valve rod is mutually connected with the valve clack arranged in the inner cavity of the valve body; the diaphragm is arranged in the valve clack; the pneumatic execution unit comprises an air cylinder, the spring, a mark rod, the upper cover and the lower cover; a piston mutually connected with the mark rod is arranged in the air cylinder block; the outer side of the piston is provided with the spring; the transparent sight glass is arranged at the top of the air cylinder block; the rubber sleeve is arranged between the transparent sight glass and the air cylinder block; the pneumatic execution unit also comprises the internal diaphragm, a diaphragm upper limit plate and a diaphragm lower limit plate; and an O-shaped ring sealing structure is arranged among the diaphragm upper limit plate, the diaphragm lower limit plate and the valve rod. The plastic pneumatic diaphragm valve has the advantages of easiness in maintenance and cleaning, abrasion resistance, high tightness, compact structure, strong corrosion resistance of the diaphragm, low cost, long service life and the like.
Description
Technical field
The utility model relates to a kind of membrane valve, is specifically related to a kind of plastics pneumatic diaphragm valve.
Background technique
Pneumatic diaphragm valve is the valve by compressed air-driven; Generally form by valve part and pneumatic power unit; Valve part comprises valve body, diaphragm, pressure-bearing cover, valve gap; Diaphragm is fixedly connected with the pressure-bearing cover, and pneumatic power unit comprises cylinder, cylinder head, spring, piston, piston rod, and piston rod stretches out cylinder head and the pressure-bearing cover is in transmission connection.The pneumatic diaphragm valve of existing technology, majority are to adopt stainless steel casing covers pneumatic structure, have shortcomings such as processing technology complicacy, cost height; And valve part is connected cylinder head and valve gap with pneumatic power unit through spacer flanger; Complex structure, quality is wayward, and working life is short.
The model utility content
Deficiency to the existing technology existence; The purpose of the utility model is to provide a kind of plastics pneumatic diaphragm valve, and it is made up of valve body, diaphragm, flap, valve rod, valve gap, lower cover, diaphragm lower limiting board, inner diaphragm, diaphragm upper limit plate, loam cake, spring, transparent visor, rubber sleeve, Simmer ring, sign bar, valve rod tightening nut, O type circle etc.
The utility model solves the technological scheme that its technical problem adopted: be provided with valve rod moving up and down in the middle of the valve body, the valve rod upper end is connected with pneumatic power unit, and the lower end is connected with flap in being arranged on body cavity, is provided with diaphragm in the flap; Pneumatic power unit comprises cylinder, spring, sign bar, loam cake, lower cover; Be provided with in the cylinder block and identify the piston that bar links to each other; The outside of piston is provided with spring, and transparent visor is placed in the top of cylinder block, is provided with rubber sleeve between itself and the said cylinder block; Pneumatic power unit also comprises inner diaphragm, diaphragm upper limit plate and diaphragm lower limiting board, and O type circle sealing configuration is set between said diaphragm upper limit plate, diaphragm lower limiting board and the valve rod.
Further technical characteristics, the center and the flap of said diaphragm are fixed together.
Said loam cake and lower cover inside are provided with turnover gas connection mouth.
The sealing surface of said inner diaphragm is provided with the PTFE anti-wear layer.
The beneficial effect of the utility model is: have advantages such as the maintenance of being easy to and cleaning, wear-resistant, good airproof performance, and its compact structure, the barrier film corrosion resistance is strong, and cost is low, long service life.
Description of drawings
Fig. 1 is the overall structure schematic representation of the utility model.
Among the figure, 1, valve body 2, diaphragm 3, flap 4, valve rod 5, valve gap 6, lower cover 7, diaphragm lower limiting board 8, inner diaphragm 9, diaphragm upper limit plate 10, loam cake 11, spring 12, transparent visor 13, rubber sleeve 14, Simmer ring 15, sign bar 16, valve rod tightening nut 17, O type circle
Embodiment
As shown in Figure 1; A kind of plastics pneumatic diaphragm valve comprises valve body 1, diaphragm 2, flap 3, valve rod 4, valve gap 5, lower cover 6, diaphragm lower limiting board 7, inner diaphragm 8, diaphragm upper limit plate 9, loam cake 10, spring 11, transparent visor 12, rubber sleeve 13, Simmer ring 14, sign bar 15, valve rod tightening nut 16, O type circle 17 etc.Valve body 1 is tubular structure; The arranged outside valve gap 5 of valve body 1 is provided with valve rod 4 moving up and down in the middle of the valve body 1, and said valve rod 4 upper ends are connected with pneumatic power unit; And it is fixing with valve rod tightening nut 16; Valve rod 4 lower ends are connected with flap 3 in being arranged on valve body 1 inner chamber, are provided with diaphragm 2 in the said flap 3, and the center of said diaphragm 2 and flap 3 are fixed together; Pneumatic power unit comprises cylinder, spring 11, sign bar 15, loam cake 10, lower cover 6, is provided with in the cylinder block and identifies the piston that bar 15 links to each other, and the outside of piston is provided with spring 11, and said spring 11 is the central shaft symmetric arrays; Transparent visor 12 is placed in the top of cylinder block, is provided with rubber sleeve 13 between itself and the said cylinder block; Cylinder block is provided with lower cover 6 near an end of said valve body 1, and the other end of cylinder body is provided with loam cake 10, and said loam cake 10 is provided with turnover gas connection mouth with lower cover 6 inside, between the outside of said lower cover 6 and valve rod 4 Simmer ring 14 is set; Said pneumatic power unit also comprises inner diaphragm 8, diaphragm upper limit plate 9 and diaphragm lower limiting board 7; Between said diaphragm upper limit plate 9, diaphragm lower limiting board 7 and the valve rod 4 O type circle 17 sealing configurations are set; Inner diaphragm 8 moves up and down under the promotion of spring 11 and gas pressure, drives valve rod 4 and moves up and down, and plays the effect of valve opening and closing; The sealing surface of said inner diaphragm 8 is provided with the PTFE anti-wear layer, has improved sealing load and wear resistance.
The utility model adopts plastic casing covers pneumatic structure, and outer casing upper cover 10 and lower cover 6 are the molded making of acetal plastic material one-off pattern, not only satisfy the requirement of intensity, and processing cost are low, and system easy to control the quality is fit to large-scale production.
Claims (4)
1. plastics pneumatic diaphragm valve; It is made up of valve body, diaphragm, flap, valve rod, lower cover, inner diaphragm, loam cake, spring; It is characterized in that: be provided with valve rod moving up and down in the middle of the valve body; Valve rod upper end is connected with pneumatic power unit, and the lower end is connected with flap in being arranged on body cavity, is provided with diaphragm in the flap; Pneumatic power unit comprises cylinder, spring, sign bar, loam cake, lower cover; Be provided with in the cylinder block and identify the piston that bar links to each other; The outside of piston is provided with spring, and transparent visor is placed in the top of cylinder block, is provided with rubber sleeve between itself and the said cylinder block; Pneumatic power unit also comprises inner diaphragm, diaphragm upper limit plate and diaphragm lower limiting board, and O type circle sealing configuration is set between said diaphragm upper limit plate, diaphragm lower limiting board and the valve rod.
2. a kind of plastics pneumatic diaphragm valve according to claim 1 is characterized in that: the center and the flap of said diaphragm are fixed together.
3. a kind of plastics pneumatic diaphragm valve according to claim 1 is characterized in that: said loam cake and lower cover inside are provided with turnover gas connection mouth.
4. a kind of plastics pneumatic diaphragm valve according to claim 1, it is characterized in that: the sealing surface of said inner diaphragm is provided with the PTFE anti-wear layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204808090U CN202327328U (en) | 2011-11-20 | 2011-11-20 | Plastic pneumatic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204808090U CN202327328U (en) | 2011-11-20 | 2011-11-20 | Plastic pneumatic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327328U true CN202327328U (en) | 2012-07-11 |
Family
ID=46439307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204808090U Expired - Fee Related CN202327328U (en) | 2011-11-20 | 2011-11-20 | Plastic pneumatic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327328U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104685278A (en) * | 2012-07-13 | 2015-06-03 | 株式会社富士金 | Fluid controller actuator |
| CN107061786A (en) * | 2017-01-17 | 2017-08-18 | 深圳市科讯工业自动化设备有限公司 | A kind of corrosion-resistant diaphragm valve |
-
2011
- 2011-11-20 CN CN2011204808090U patent/CN202327328U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104685278A (en) * | 2012-07-13 | 2015-06-03 | 株式会社富士金 | Fluid controller actuator |
| CN104685278B (en) * | 2012-07-13 | 2016-10-12 | 株式会社富士金 | Fluid control actuator |
| TWI595179B (en) * | 2012-07-13 | 2017-08-11 | Fujikin Kk | Fluid Controller with Actuator |
| CN107061786A (en) * | 2017-01-17 | 2017-08-18 | 深圳市科讯工业自动化设备有限公司 | A kind of corrosion-resistant diaphragm valve |
| CN107061786B (en) * | 2017-01-17 | 2023-09-19 | 科讯工业制造(深圳)有限公司 | Corrosion-resistant diaphragm valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dong Zheng Science and Technology Ltd. Assignor: Xiang Guangping Contract record no.: 2014330000165 Denomination of utility model: Plastic pneumatic diaphragm valve Granted publication date: 20120711 License type: Exclusive License Record date: 20140515 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141120 |
|
| EXPY | Termination of patent right or utility model |