CN202691131U - Pneumatic straight-through type diaphragm valve - Google Patents
Pneumatic straight-through type diaphragm valve Download PDFInfo
- Publication number
- CN202691131U CN202691131U CN 201220334002 CN201220334002U CN202691131U CN 202691131 U CN202691131 U CN 202691131U CN 201220334002 CN201220334002 CN 201220334002 CN 201220334002 U CN201220334002 U CN 201220334002U CN 202691131 U CN202691131 U CN 202691131U
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- valve
- pneumatic
- assembly
- film
- valve body
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Abstract
The utility model relates to a pneumatic straight-through type diaphragm valve, which comprises a valve body, a valve cover, a pneumatic component, a hood cover, a manual operation component, a signal feedback component, a diaphragm component and a valve rod, wherein the valve body, the valve cover, the pneumatic component and the hood cover are connected in sequence; a straight-through type medium flow channel is arranged in the valve body; the manual operation component and the signal feedback component are arranged on the hoop cover and connected with the pneumatic component; the valve rod passes through the valve cover, and one end of the valve rod is connected with the pneumatic component; and the diaphragm component is arranged in the valve body, is connected with the other end of the valve rod and can be elastically deformed under the push of the valve rod to seal the straight-through type medium flow channel in the valve body. Compared with the prior art, the pneumatic straight-through type diaphragm valve has the advantages of good sealing performance, low pipeline pressure loss, and the like.
Description
Technical field
The utility model relates to a kind of valve, especially relates to a kind of pneumatic straight way diaphragm valve.
Background technique
Membrane valve be with barrier film as open-shut device, moved up and down along axis by handwheel band ovable valve stem, driver part and medium are in isolation, major function is the medium that switches on or off in the pipeline, the start-stop device that control media flows.
Because barrier film is the vital part of keying and the sealing of membrane valve, the quality of its quality directly has influence on sealability and the working life of valve, therefore, the structure of diaphragm of rubber and material will and play vital effect working life to the sealability of membrane valve.
At present, it is easy to wear, aging that many membrane valves exist barrier film, and many drawbacks such as valve run, drip, leak happen occasionally.
The model utility content
The purpose of this utility model is exactly that a kind of good airproof performance, pneumatic straight way diaphragm valve that pressure loss in piping is little are provided in order to overcome the defective that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of pneumatic straight way diaphragm valve, comprise valve body, valve gap, Pneumatic assembly, cover cap, the manually-operable assembly, the signal feed back assembly, septum assembly and valve rod, described valve body, valve gap, Pneumatic assembly is connected with cover cap and is connected, be provided with the media flow passage of straight-through type in the valve body, described manually-operable assembly and signal feed back assembly are located on the cover cap, and be connected with Pneumatic assembly, described valve rod passes valve gap, one end connects Pneumatic assembly, described septum assembly is located in the valve body, the other end that connects valve rod, and straight-through type media flow passage in the elastic strain sealed valve body can occur under valve rod promotes.
Described septum assembly comprises flap and barrier film, and described flap is fixed on the valve rod, and the edge of described barrier film is pressed by valve gap and is fixed on the valve body, and diaphragm center is connected with flap, and with flap and valve rod is concentric arranges,
Described Pneumatic assembly comprises cylinder, film and film platen, described cylinder is connected on the valve gap, cylinder is provided with cylinder head, and formation cavity, described film is located in this described cavity, and this cavity is divided into source of the gas chamber and pressure chamber, and described film platen is provided with two, be located at respectively upper surface and the lower surface of film, the film platen connection valve bar of lower surface, the film platen of upper surface connect the signal feed back assembly.
Described cylinder is connected with the cylinder head sidewall for the through hole that connects source of the gas, and this through hole is provided with pipe plug.
Thereby described signal feed back assembly comprises adjusting screw rod, indicating arm and the sensor that obtains the valve opening and closing position for detection of the indicating arm position, described adjusting screw rod is located in the cover cap, and stretch into and connect the film platen that is positioned at the film upper surface in the source of the gas chamber of cylinder, described indicating arm connects adjusting screw rod, and described sensor is fixed on the sidewall of cover cap.
Compared with prior art, the utlity model has following characteristics:
1, adopt packless structure, so that the sealing realization is simpler, sealability is better;
2, the media flow passage in the valve body adopts the straight-through type design, does not have the end face resistance, and the pressure loss reduces, and without the alluvial of medium at body cavity, is very suitable for the occasion of pollution-free and danger-restricted area and various high concentration with the suspension of fiber.
3, adopt the pneumatic actuator of diaphragm type in the Pneumatic assembly, substitute traditional piston type pneumatic actuator, therefore got rid of relative wear between piston and cylinder and cause and drive the defectives such as malfunctioning, its working life, corresponding raising was 10～20 times.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of pneumatic straight way diaphragm valve comprises valve body 20, valve gap 19, Pneumatic assembly, cover cap 8, manually-operable assembly, signal feed back assembly, septum assembly and valve rod 3.Valve body 20, valve gap 19, Pneumatic assembly are connected with cover cap successively and are connected, be provided with the media flow passage of straight-through type in the valve body 20, manually-operable assembly and signal feed back assembly are located on the cover cap 8, and be connected with Pneumatic assembly, valve rod 3 passes valve gap 19, one end connects Pneumatic assembly, and septum assembly is located in the valve body 20, connects the other end of valve rod 3.
Wherein, septum assembly comprises flap 2 and barrier film 1, and flap 2 is fixed on the valve rod 3, and with moving under the valve rod mountain, the edge of barrier film 1 is pressed by valve gap 19 and is fixed on the valve body 20, and barrier film 1 center is connected with flap 2 by screw, and with flap 2 and valve rod 3 concentric settings.
Pneumatic assembly comprises cylinder 18, film 5 and two film platens 4,6, cylinder 18 is connected on the valve gap 19, cylinder 18 is provided with cylinder head 16, and formation cavity, film 5 is located in this described cavity, and this cavity is divided into source of the gas chamber and pressure chamber, and film platen 4,6 is located at respectively upper surface and the lower surface of film 5, and the film platen 6 that the film platen 4 of lower surface connects valve rods 3, upper surface connects the adjusting screw rod 7 of signal feed back assemblies.Cylinder 18 is connected sidewall and is offered for the through hole that connects source of the gas with cylinder head, this through hole is provided with pipe plug 17.
Thereby the signal feed back assembly comprises adjusting screw rod 7, indicating arm 11 and the sensor that obtains the valve opening and closing position for detection of the indicating arm position, adjusting screw rod 7 is located in the cover cap 8, and stretch into and connect the film platen 6 that is positioned at the film upper surface in the source of the gas chamber of cylinder, indicating arm 11 connects adjusting screw rod 7, sensor is fixed on the sidewall of cover cap 8, detect the position of indicating arm by magnetic induction principle, thereby obtain valve opening or closed degree.When not needing sensor is set, this position of cover cap 8 seals with dust cover 9.
In addition, the manually-operable assembly then adopts general valve structure commonly used, comprises the assemblies such as handwheel 14, screw rod 13, steel ball 12, wherein handwheel is used for directly operating, screw rod 13 is used for carry-over moment, and steel ball etc. are used for reducing friction, so that whole device is more laborsaving.
The mode of bolt, nut is adopted in connection between most of parts, and packing ring is set increases locking torque, improves sealing, at the position that the parts such as adjusting screw rod, valve rod wear, improves tightness by the O RunddichtringO is set.
The utility model is owing to adopting packless structure, so that the sealing realization is simpler, sealability is better.Media flow passage in the valve body adopts the straight-through type design, does not have the end face resistance, and the pressure loss reduces, and without the alluvial of medium at body cavity, is very suitable for the occasion of pollution-free and danger-restricted area and various high concentration with the suspension of fiber.In Pneumatic assembly, adopt the pneumatic actuator of diaphragm type, substitute traditional piston type pneumatic actuator, therefore to have got rid of relative wear between piston and cylinder and cause and drive the defectives such as malfunctioning, its working life, corresponding raising was 10～20 times.
Claims (5)
1. pneumatic straight way diaphragm valve, it is characterized in that, comprise valve body, valve gap, Pneumatic assembly, cover cap, the manually-operable assembly, the signal feed back assembly, septum assembly and valve rod, described valve body, valve gap, Pneumatic assembly is connected with cover cap and is connected, be provided with the media flow passage of straight-through type in the valve body, described manually-operable assembly and signal feed back assembly are located on the cover cap, and be connected with Pneumatic assembly, described valve rod passes valve gap, one end connects Pneumatic assembly, described septum assembly is located in the valve body, connects the other end of valve rod, and the straight-through type media flow passage in the elastic strain sealed valve body can occur under valve rod promotes.
2. a kind of pneumatic straight way diaphragm valve according to claim 1, it is characterized in that, described septum assembly comprises flap and barrier film, described flap is fixed on the valve rod, the edge of described barrier film is pressed by valve gap and is fixed on the valve body, diaphragm center is connected with flap, and with flap and valve rod is concentric arranges
3. a kind of pneumatic straight way diaphragm valve according to claim 1, it is characterized in that, described Pneumatic assembly comprises cylinder, film and film platen, described cylinder is connected on the valve gap, cylinder is provided with cylinder head, and formation cavity, described film is located in this described cavity, and this cavity is divided into source of the gas chamber and pressure chamber, described film platen is provided with two, be located at respectively upper surface and the lower surface of film, the film platen connection valve bar of lower surface, the film platen of upper surface connect the signal feed back assembly.
4. a kind of pneumatic straight way diaphragm valve according to claim 3 is characterized in that, described cylinder is connected with the cylinder head sidewall for the through hole that connects source of the gas, and this through hole is provided with pipe plug.
5. a kind of pneumatic straight way diaphragm valve according to claim 3, it is characterized in that, thereby described signal feed back assembly comprises adjusting screw rod, indicating arm and the sensor that obtains the valve opening and closing position for detection of the indicating arm position, described adjusting screw rod is located in the cover cap, and stretch into and connect the film platen that is positioned at the film upper surface in the source of the gas chamber of cylinder, described indicating arm connects adjusting screw rod, and described sensor is fixed on the sidewall of cover cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334002 CN202691131U (en) | 2012-07-10 | 2012-07-10 | Pneumatic straight-through type diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220334002 CN202691131U (en) | 2012-07-10 | 2012-07-10 | Pneumatic straight-through type diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691131U true CN202691131U (en) | 2013-01-23 |
Family
ID=47546755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220334002 Expired - Lifetime CN202691131U (en) | 2012-07-10 | 2012-07-10 | Pneumatic straight-through type diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075019A (en) * | 2013-03-27 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | An adjustable positioning pneumatic stop valve |
| CN105333175A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Manual diaphragm valve structure |
-
2012
- 2012-07-10 CN CN 201220334002 patent/CN202691131U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075019A (en) * | 2013-03-27 | 2014-10-01 | 苏州科迪流体控制设备有限公司 | An adjustable positioning pneumatic stop valve |
| CN104075019B (en) * | 2013-03-27 | 2016-10-05 | 苏州科迪流体控制设备有限公司 | A kind of scalable locating pneumatic stop valve |
| CN105333175A (en) * | 2015-10-26 | 2016-02-17 | 无锡市圣科不锈钢气动自控阀门厂 | Manual diaphragm valve structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |