CN208281556U - A kind of diaphragm valve - Google Patents
A kind of diaphragm valve Download PDFInfo
- Publication number
- CN208281556U CN208281556U CN201820541809.9U CN201820541809U CN208281556U CN 208281556 U CN208281556 U CN 208281556U CN 201820541809 U CN201820541809 U CN 201820541809U CN 208281556 U CN208281556 U CN 208281556U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- diaphragm
- bonnet
- button
- 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
A kind of diaphragm valve, belongs to valve technology field；Pass through handle rotation valve rod, because the lower end of valve rod and bonnet are mutually ratcheting by respective screw thread, so valve rod is fed down by the screw thread realization of bonnet inner wall, while valve rod is fed down, valve rod is rotary motion, button is passed to by downward centripetal force is rotated by steel ball, reduces direct frictional force between valve rod and button, making valve rod and button, the service life is longer；The bottom surface of the upper surface and recess of intake channel and exit passageway is in same plane, makes do not have slit stagnant area on the sealing surface of diaphragm and valve body contact, realizes that some liquids are not trapped in slit stagnant area, very hygienic；Support diaphragm makes diaphragm, and the service life is longer, and the opening and closing effect of valve is more preferable；It is connected and fixed between valve body and actuator by valve cap nut, plays more convenient when maintenance, and reduce initial production cost.Therefore the utility model has the characteristics that simple structure and reasonable design.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to a kind of diaphragm valve.
Background technique
The structure type of diaphragm valve differs widely with general valve, is a kind of novel valve, is a kind of special shape
Block valve, because general diaphragm valve shell is highstrenghtpiston, diaphragm is nitrile rubber diaphragm or fluorubber diaphragm section, can be with
Diaphragm 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, and since diaphragm is in the cavity of valve seat, when card valve or internal leakage occurs,
It will be difficult to the problem of judging failure cause；During valve is closed and is opened, actuator is easy to wear, and uses the longevity
Order short, and the valve rod of existing diaphragm valve and valve body are linked together, and maintenance and replacement are all inconvenient, in production and processing
It will increase initial cost, and taken time and effort when assembling.
Summary of the invention
The utility model mainly solves technical problem present in the above-mentioned prior art, provides a kind of diaphragm valve.
Above technical problems of the utility model are mainly solved by the following technical scheme: a kind of diaphragm valve,
Including valve body and actuator, the inside of the valve body is equipped with intake channel and exit passageway, the intake channel and exit passageway
L-shaped, the upper end of the valve body is equipped with recess, at the bottom surface of the upper surface and recess of the intake channel and exit passageway
In same plane, the upper end of the exit passageway is equipped with valve seat, and the bottom surface of the recess is equipped with diaphragm, sets on the upside of the diaphragm
There is support diaphragm, the actuator includes handle and valve rod, and the upper end center of the handle is equipped with nut, the inner ring of the handle
Equipped with plastic sheath, the upper end of the valve rod and nut are connected and fixed by sunk screw, are equipped between the plastic sheath and valve rod
The middle part of bonnet, the valve rod is equipped with groove, and O-ring is equipped between the groove and bonnet, and the bottom end of the valve rod is equipped with steel
The downside of ball, the steel ball is equipped with button, and the valve rod, steel ball and button are set to bonnet interior, and the bottom end of the bonnet is set
There is a valve cap nut, the upper end of the valve cap nut and valve body is connected to a fixed by the screw thread between respectively.
Preferably, the bottom end of the valve rod is in concave spherical, the spherical diameter of the concave spherical surface is greater than steel ball size.
Preferably, the lower end of the valve rod is mutually ratcheting by respective screw thread with bonnet.
The utility model has the advantages that through handle rotation valve rod, because the lower end of valve rod and bonnet pass through respectively
From screw thread it is mutually ratcheting, so valve rod is fed down by the realization of the screw thread of bonnet inner wall, while valve rod is fed down, valve
Bar is rotary motion, passes to button for downward centripetal force is rotated by steel ball, is reduced direct between valve rod and button
Frictional force, making valve rod and button, the service life is longer；The bottom surface of the upper surface and recess of intake channel and exit passageway is in
Same plane makes do not have slit stagnant area on the sealing surface of diaphragm and valve body contact, and it is stagnant to realize that some liquids are not trapped in slit
Area is stayed, it is very hygienic；Support diaphragm makes diaphragm, and the service life is longer, and the opening and closing effect of valve is more preferable；Valve body and actuator
Between be connected and fixed by valve cap nut, play more convenient when maintenance, and reduce initial production cost.Therefore this reality
Has the characteristics that simple structure and reasonable design with novel.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model；
Fig. 2 is the enlarged diagram in the portion A in Fig. 1.
In figure: 1, valve body；2, actuator；3, intake channel；4, exit passageway；5, recess；6, valve seat；7, diaphragm；8, it props up
Support diaphragm；9, handle；10, valve rod；11, nut；12, plastic sheath；13, sunk screw；14, bonnet；15, groove；16, O-ring；
17, steel ball；18, button；19, valve cap nut.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: a kind of diaphragm valve, as Figure 1-Figure 2, including valve body and actuator, the inside of the valve body be equipped with into
Mouthful channel and exit passageway, the intake channel and exit passageway are L-shaped, and the upper end of the valve body is equipped with recess, it is described into
Mouth channel and the upper surface of exit passageway and the bottom surface of recess are in same plane, and the upper end of the exit passageway is equipped with valve seat,
The bottom surface of the recess is equipped with diaphragm, and the upside of the diaphragm is equipped with support diaphragm, and the actuator includes handle and valve rod, institute
The upper end center for stating handle is equipped with nut, and the inner ring of the handle is equipped with plastic sheath, and it is heavy that the upper end of the valve rod and nut pass through
Head screw is connected and fixed, and is equipped with bonnet between the plastic sheath and valve rod, and the middle part of the valve rod is equipped with groove, the groove with
O-ring is equipped between bonnet, the bottom end of the valve rod is equipped with steel ball, and the downside of the steel ball is equipped with button, the valve rod, steel ball
Bonnet interior is set to button, and the bottom end of the bonnet is equipped with valve cap nut, and the upper end of the valve cap nut and valve body passes through
Screw thread between respectively is connected to a fixed.
Preferably, the bottom end of the valve rod is in concave spherical, the spherical diameter of the concave spherical surface is greater than steel ball size, more
Good transmitting centripetal force reduces friction range.
Preferably, the lower end of the valve rod and bonnet are mutually ratcheting by respective screw thread, allow valve rod up and down into
It gives, in valve opening and closing, is accurately controlled the size of diaphragm aperture flow.
The application method of the utility model: pass through clockwise handle, handle rotation valve rod, because the lower end of valve rod and bonnet are logical
Cross that respective screw thread is mutually ratcheting, so valve rod is fed down by the screw thread realization of bonnet inner wall, similarly, and when handle reverses, valve
Bar is fed up, and while valve rod is fed down, valve rod is rotary motion, is transmitted by steel ball by downward centripetal force is rotated
To button, reduce direct frictional force between valve rod and button, making valve rod and button, the service life is longer, then is touched by button
Support diaphragm and diaphragm are touched, so that diaphragm is adjacent to valve seat downwards, realizes the closure of valve.
Finally it is pointed out that above embodiments are only the more representational examples of the utility model.Obviously, this is practical new
Type is not limited to the above embodiments, and acceptable there are many deformations.All foundation the technical essence of the utility model are to above embodiments
Made any simple modification, equivalent change and modification are considered as belonging to the protection scope of the utility model.
Claims (3)
1. a kind of diaphragm valve, including valve body and actuator, it is characterised in that the inside of the valve body is equipped with intake channel and outlet
Channel, the intake channel and exit passageway are L-shaped, and the upper end of the valve body is equipped with recess, the intake channel and outlet
The upper surface in channel and the bottom surface of recess are in same plane, and the upper end of the exit passageway is equipped with valve seat, the bottom of the recess
Face is equipped with diaphragm, and the upside of the diaphragm is equipped with support diaphragm, and the actuator includes handle and valve rod, the upper end of the handle
Center is equipped with nut, and the inner ring of the handle is equipped with plastic sheath, and the upper end of the valve rod is connect with nut by sunk screw solid
It is fixed, bonnet is equipped between the plastic sheath and valve rod, the middle part of the valve rod is equipped with groove, is equipped between the groove and bonnet
O-ring, the bottom end of the valve rod are equipped with steel ball, and the downside of the steel ball is equipped with button, and the valve rod, steel ball and button are set to
Bonnet interior, the bottom end of the bonnet are equipped with valve cap nut, and the upper end of the valve cap nut and valve body passes through the spiral shell between respectively
Line is connected to a fixed.
2. a kind of diaphragm valve according to claim 1, it is characterised in that the bottom end of the valve rod is in concave spherical, described recessed
The spherical diameter of spherical surface is greater than steel ball size.
3. a kind of diaphragm valve according to claim 1, it is characterised in that the lower end of the valve rod and bonnet pass through respectively
Screw thread it is mutually ratcheting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820541809.9U CN208281556U (en) | 2018-04-17 | 2018-04-17 | A kind of diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820541809.9U CN208281556U (en) | 2018-04-17 | 2018-04-17 | A kind of diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208281556U true CN208281556U (en) | 2018-12-25 |
Family
ID=64751260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820541809.9U Expired - Fee Related CN208281556U (en) | 2018-04-17 | 2018-04-17 | A kind of diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208281556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112861334A (en) * | 2021-01-29 | 2021-05-28 | 清华大学 | Valve rod clamping stagnation friction force analysis method and device |
| CN114484067A (en) * | 2022-01-20 | 2022-05-13 | 良工阀门集团有限公司 | Sampling valve |
-
2018
- 2018-04-17 CN CN201820541809.9U patent/CN208281556U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112861334A (en) * | 2021-01-29 | 2021-05-28 | 清华大学 | Valve rod clamping stagnation friction force analysis method and device |
| CN114484067A (en) * | 2022-01-20 | 2022-05-13 | 良工阀门集团有限公司 | Sampling valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181225 Termination date: 20210417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |