CN206468882U - A kind of diaphragm valve - Google Patents
A kind of diaphragm valve Download PDFInfo
- Publication number
- CN206468882U CN206468882U CN201720178022.6U CN201720178022U CN206468882U CN 206468882 U CN206468882 U CN 206468882U CN 201720178022 U CN201720178022 U CN 201720178022U CN 206468882 U CN206468882 U CN 206468882U
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- China
- Prior art keywords
- diaphragm
- barrier film
- cavity
- connecting rod
- valve
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Abstract
The utility model is related to a kind of diaphragm valve, including：Valve body, barrier film, connecting rod, valve element and indicator, the valve body includes the first flow cavity, the second flow cavity, the rod slide chamber being connected with the first flow cavity and the second flow cavity and is arranged on the diaphragm cavity that rod slide chamber upper end is connected, barrier film is provided between rod slide chamber and diaphragm cavity, it is provided with diaphragm cavity on the first water inlet, rod slide chamber and is provided with exhaust outlet；Connecting rod sequentially passes through the through hole and barrier film at the top of diaphragm cavity, and connecting rod is fixedly connected with barrier film, and the bottom of connecting rod is fixedly connected with valve element, and connecting rod is moved with the concaveconvex shape change of the barrier film between rod slide chamber and diaphragm cavity.The diaphragm valve of the utility model design, by installing indicator switch additional on diaphragm valve, when occurring diaphragm valve failure, can be quickly found out trouble point, saving is fixed a breakdown the time, is shortened time of casualty, is reached fast reaction, the quick effect for solving problem.
Description
Technical field
The utility model is related to valve field, and in particular to diaphragm valve.
Background technology
The structure type of diaphragm valve differs widely with general valve, is a kind of new valve, is a kind of special shape
Block valve, because general barrier film valve shell is highstrenghtpiston, barrier film is that nitrile rubber barrier film or fluorubber barrier film section can be with
Barrier film material is selected according to the characteristic of fluid, so in Large water treatment equipment, usually using diaphragm valve opening as system
Close valve.
But diaphragm valve is in water treatment applications, because barrier film is in the cavity of valve seat, when occurring card valve or internal leakage,
The problem of failure judgement reason will be difficult to.
The content of the invention
In view of the problems of prior art, the utility model provides a kind of diaphragm valve, by being installed additional on diaphragm valve
Indicator, when occurring diaphragm valve failure, can be quickly found out trouble point, saving is fixed a breakdown the time, is shortened time of casualty, is reached
To fast reaction, the quick effect for solving problem.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：
A kind of diaphragm valve, including：Valve body, barrier film, connecting rod, valve element and position indicator switch,
The valve body includes the first flow cavity, the second flow cavity, the company being connected with the first flow cavity and the second flow cavity
Bar sliding cavity and be arranged on the diaphragm cavity that rod slide chamber upper end is connected, the rod slide chamber and the diaphragm cavity it
Between be provided with barrier film, the diaphragm cavity and be provided with the first water inlet, be provided with exhaust outlet on the rod slide chamber；
The connecting rod sequentially passes through the through hole and the barrier film at the top of the diaphragm cavity, and the connecting rod is fixed with the barrier film
Connection, the bottom of the connecting rod is fixedly connected with the valve element, and the connecting rod changes described with the concaveconvex shape of the barrier film
Moved between rod slide chamber and the diaphragm cavity, the valve element is pasted with the drive of the connecting rod downwards with first flow cavity
It is tight and seal, the upper end of the connecting rod with the barrier film concaveconvex shape change respectively be arranged on outside the diaphragm cavity first
Position indicator is switched and second place indicator switch is in contact.
Further, the rod slide intracavitary is fixed with support frame, and the connecting rod passes through support frame as described above along the company
The direction motion of bar sliding cavity.
Further, rubber ring is provided with below support frame as described above, the valve element is slided with the connecting rod along the connecting rod
Dynamic chamber is moved upwards, and when the arrival valve element moves maximum position upwards, the valve element is in contact with the rubber ring.
Further, it is provided with sealing ring on the valve element.
Further, valve seat is provided with the position that first flow cavity is contacted with the valve element.
Further, the barrier film is nitrile rubber barrier film or fluorubber barrier film.
Further, the barrier film is dome-type.
Further, the area of the barrier film is more than the area of the valve element.
Further, the valve body is made of plastics.
Further, on first flow cavity the second water inlet and the water outlet of second flow cavity is respectively provided with
There is adpting flange.
The beneficial effects of the utility model are：
1st, it is simple in construction, make more flexible, reliability and durability on Valve controlling, thoroughly prevented single-chamber control valve and there may be
Ineffective, the not tight hidden danger of switch；
2nd, the fluid resistance of diaphragm valve is small, and negotiability is big compared with the other types valve of same specification；
3rd, plastic material, with anticorrosive property and viscosity；
4th, with indicator, when beginning to show failure, the fast quick-detach of valve energy and maintenance, changing barrier film can be at the scene and short
Completed in time, save a large amount of artificial and times, reduce fault handling time.
Brief description of the drawings
Fig. 1 is a kind of illustrative view of diaphragm valve of the utility model, the state that display diaphragm valve is closed；
Fig. 2 is a kind of illustrative view of diaphragm valve of the utility model, the state that display diaphragm valve is opened.
In figure：1- barrier films, 2- connecting rods, 3- valve elements, the flow cavities of 4- first, the flow cavities of 5- second, 6- rod slide chambers, 7-
Diaphragm cavity, the water inlets of 8- second, 9- delivery ports, 10- adpting flanges, the water inlets of 11- first, 12- exhaust outlets, 13- first positions
Indicator switch, 14- second places indicator switch, 15- valve seats, 16- support frames, 17- rubber rings.
Embodiment
The utility model is described in detail below with reference to accompanying drawing, however itself and be not used to limit the utility model
Practical range.
As illustrated in fig. 1 and 2, a kind of diaphragm valve, including：Valve body, barrier film 1, connecting rod 2, valve element 3 and position indicator switch,
Valve body is the Y-valve body being made of plastics, and valve body includes the first flow cavity 4, the second flow cavity 5 and the first flow cavity 4 and second
Rod slide chamber 6 and be arranged on the diaphragm cavity 7 that the upper end of rod slide chamber 6 is connected that flow cavity 5 is connected, the first flowing
The second water inlet 8 on chamber 4 and adpting flange 10 is provided with the delivery port 9 of the second flow cavity 6, rod slide chamber 6 and every
Barrier film 1 is provided between membrane cavity 7, barrier film 1 is the dome-type film that nitrile rubber barrier film or fluorubber barrier film are made, the face of barrier film 1
Product, which is more than to be provided with the first water inlet 11, rod slide chamber 6 on the area of valve element 3, diaphragm cavity 7, is provided with exhaust outlet 12.
Connecting rod 2 sequentially passes through the through hole and barrier film 1 at the top of diaphragm cavity 7, and connecting rod 2 is fixedly connected with barrier film 1, the bottom of connecting rod 2
End is fixedly connected with valve element 3, and connecting rod 2 is moved with the concaveconvex shape change of barrier film 1 between rod slide chamber 7 and diaphragm cavity 7, valve
Core 3 is adjacent to and sealed with the first flow cavity 4 with the downward drive of connecting rod 2, and the upper end of connecting rod 2 changes with the concaveconvex shape of barrier film 1
It is in contact respectively with the first position indicator switch 13 and second place indicator switch 14 being arranged on outside diaphragm cavity 7.Valve element 3
On be provided with sealing ring, the position that the first flow cavity 5 is contacted with valve element 3 and be provided with valve seat 15.
Support frame 16 is fixed with rod slide chamber 6, connecting rod 2 is moved through direction of the support frame 16 along rod slide chamber 6.
The lower section of support frame 16 is provided with rubber ring 17, and valve element 3 is moved upwards with connecting rod 2 along rod slide chamber 6, reaches valve
When core 3 moves maximum position upwards, valve element 3 is in contact with rubber ring 17.
Operation principle of the present utility model is：When the first water inlet has pressure, barrier film expansion, compressed gas is by exhaust outlet
Discharge, drivening rod downward actuation, connecting rod promotes valve element action by support frame, compresses valve seat, and now diaphragm valve is closed, and first
Position indicator switch sends shutdown signal, and now connecting rod, which is withdrawn, indicates closed position；When the first water inlet pressure release power, by
The influence of two water inlet pressure, valve element is pushed open, drivening rod is acted upwards, and connecting rod reaches first by being moved on support frame
The position indicator position of the switch, sends open signal, and now connecting rod, which stretches out, indicates open position.
The technical principle described above for being preferred embodiment of the present utility model and its being used, for the technology of this area
It is any to be based on technical solutions of the utility model base in the case of without departing substantially from spirit and scope of the present utility model for personnel
Equivalent transformation, simple replacement on plinth etc. are obvious to be changed, and is belonged within the utility model protection domain.
Claims (10)
1. a kind of diaphragm valve, it is characterised in that including：Valve body, barrier film, connecting rod, valve element and position indicator switch,
The connecting rod cunning that the valve body includes the first flow cavity, the second flow cavity, is connected with the first flow cavity and the second flow cavity
Move chamber and be arranged on the diaphragm cavity that rod slide chamber upper end is connected, set between the rod slide chamber and the diaphragm cavity
It is equipped with barrier film, the diaphragm cavity and is provided with the first water inlet, exhaust outlet is provided with the rod slide chamber；
The connecting rod sequentially passes through the through hole and the barrier film at the top of the diaphragm cavity, and the connecting rod is fixed with the barrier film to be connected
Connect, the bottom of the connecting rod is fixedly connected with the valve element, the connecting rod changes in the company with the concaveconvex shape of the barrier film
Moved between bar sliding cavity and the diaphragm cavity, the valve element is adjacent to the drive of the connecting rod downwards with first flow cavity
And seal, the upper end of the connecting rod with the barrier film concaveconvex shape change respectively be arranged on outside the diaphragm cavity first
Put indicator switch and second place indicator switch is in contact.
2. a kind of diaphragm valve according to claim 1, it is characterised in that the rod slide intracavitary is fixed with support frame,
The connecting rod is moved through direction of the support frame as described above along the rod slide chamber.
3. a kind of diaphragm valve according to claim 2, it is characterised in that rubber ring is provided with below support frame as described above,
The valve element is moved upwards with the connecting rod along the rod slide chamber, when the arrival valve element moves maximum position upwards, institute
Valve element is stated to be in contact with the rubber ring.
4. a kind of diaphragm valve according to claim 1, it is characterised in that be provided with sealing ring on the valve element.
5. a kind of diaphragm valve according to claim 1, it is characterised in that what first flow cavity was contacted with the valve element
Valve seat is provided with position.
6. a kind of diaphragm valve according to claim 1, it is characterised in that the barrier film is nitrile rubber barrier film or fluorubber
Barrier film.
7. a kind of diaphragm valve according to claim 6, it is characterised in that the barrier film is dome-type.
8. a kind of diaphragm valve according to claim 1, it is characterised in that the area of the barrier film is more than the face of the valve element
Product.
9. a kind of diaphragm valve according to claim 1, it is characterised in that the valve body is made of plastics.
10. a kind of diaphragm valve according to any one of claim 1 to 9, it is characterised in that on first flow cavity
The water outlet of two water inlets and second flow cavity is provided with adpting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720178022.6U CN206468882U (en) | 2017-02-27 | 2017-02-27 | A kind of diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720178022.6U CN206468882U (en) | 2017-02-27 | 2017-02-27 | A kind of diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206468882U true CN206468882U (en) | 2017-09-05 |
Family
ID=59713079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720178022.6U Active CN206468882U (en) | 2017-02-27 | 2017-02-27 | A kind of diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206468882U (en) |
-
2017
- 2017-02-27 CN CN201720178022.6U patent/CN206468882U/en active Active
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| GR01 | Patent grant |