CN208057959U - Antistatic butterfly valve - Google Patents
Antistatic butterfly valve Download PDFInfo
- Publication number
- CN208057959U CN208057959U CN201721925258.8U CN201721925258U CN208057959U CN 208057959 U CN208057959 U CN 208057959U CN 201721925258 U CN201721925258 U CN 201721925258U CN 208057959 U CN208057959 U CN 208057959U
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- CN
- China
- Prior art keywords
- valve
- plug screw
- guide post
- valve body
- antistatic
- 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.)
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Abstract
The utility model is related to butterfly valve technical field more particularly to a kind of antistatic butterfly valve, including valve body, valve plate, valve rod and valve seat, the top of the valve body is equipped with anti-static mechanism, and the anti-static mechanism includes plug screw, spring and guide post；The top side of the valve body is equipped with threaded hole, the lower part of the plug screw is threadedly coupled with the threaded hole, and the plug screw is internally provided with groove, and the spring is placed in the groove, described guide post one end is connect with one end of the spring, the other end of guide post and the valve stem contacts.In addition there is conductive stud in valve body upper design, the electrostatic export that valve is generated when being turned on and off can be caused danger without causing by conductive stud.
Description
Technical field
The utility model is related to butterfly valve technical field more particularly to a kind of antistatic butterfly valves.
Background technology
Common butterfly valve does not have the parts such as sealing axle sleeve, plug screw, plug screw pad, spring, guide post now, cannot safety by valve shaft
It is effectively guided out except valve between valve plate, between valve shaft and rubber valve seat due to rotating the electrostatic generated.Electrostatic is easy to
It is accumulated on butterfly plate, and butterfly plate is connect with valve rod, therefore when valve rod rotates, electric discharge phenomena are also easy to produce, if the electrostatic cannot
Export in time, it is possible to by inflammable and explosive pumped (conveying) medium ignition and blasting, cause the accident.
Utility model content
Purpose of the utility model is to overcome the shortcomings of the above technology, and to provide a kind of antistatic butterfly valves.
The utility model to achieve the above object, using following technical scheme：
A kind of antistatic butterfly valve, including valve body, valve plate, valve rod and valve seat, it is characterised in that：The top of the valve body is set
It includes plug screw, spring and guide post to have anti-static mechanism, the anti-static mechanism；The top side of the valve body is equipped with screw thread
Hole, the lower part of the plug screw are threadedly coupled with the threaded hole, and the plug screw is internally provided with groove, and the spring is placed in described
In groove, described guide post one end is connect with one end of the spring, the other end of guide post and the valve stem contacts.
Preferably, plug screw pad is equipped between the plug screw and the valve body.
Preferably, another end surfaces of the guide post are semicircle.
The utility model has the beneficial effects that:Antistatic butterfly valve is improved based on original butterfly valve, and original butterfly valve is inherited
Axis hole position is changed in sealing axle sleeve is designed with by all advantages, and can be used for biogas etc. and require the medium of antistatic
Outer two pneumaticpiston sealing rings can effectively prevent axial reveal and result in waste of resources and avoid potential danger；In addition exist
Valve body upper design has conductive stud, can be exported the electrostatic that valve is generated when being turned on and off without causing by conductive stud
It causes danger.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the enlarged drawing of anti-static mechanism in Fig. 1.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment of the present utility model is described in detail in preferred embodiment.
In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply and is signified
Device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this practicality
Novel limitation.
As Figure 1-Figure 2, a kind of antistatic butterfly valve, including valve body 1, valve plate, valve rod 2 and valve seat, the valve body
Top is equipped with anti-static mechanism, and the anti-static mechanism 3 includes plug screw 31, spring 32 and guide post 33；The top of the valve body
Side is equipped with threaded hole, and the lower part of the plug screw is threadedly coupled with the threaded hole, and the plug screw is internally provided with groove 34, institute
It states spring to be placed in the groove, described guide post one end is connect with one end of the spring, and guide post slides in groove, guide post
The other end and the valve stem contacts.Plug screw pad 35 is equipped between the plug screw and the valve body.Bolting pad plays the role of sealing,
Prevent impurity from entering in valve rod, for the contact for keeping guide post and stem surface smooth, another end surfaces of the guide post are half
It is round.Plug screw connects a wired earth, generates after electrostatic since guide post compresses valve rod always, electrostatic passes through guide post and plug screw passes
It is sent to conducting wire, is finally oriented to the earth.
Antistatic butterfly valve is improved based on original butterfly valve, inherits original butterfly valve all advantages, and can be used for natural pond
Gas etc. requires the medium of antistatic, and axis hole position, which is changed to sealing axle sleeve, is designed with inside and outside two pneumaticpiston sealing rings, can
It effectively prevent axial reveal and results in waste of resources and avoid potential danger；In addition there is conductive stud in valve body upper design,
The electrostatic export that valve is generated when being turned on and off can be caused danger without causing by conductive stud.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (3)
1. a kind of antistatic butterfly valve, including valve body, valve plate, valve rod and valve seat, it is characterised in that：The top of the valve body is equipped with
Anti-static mechanism, the anti-static mechanism include plug screw, spring and guide post；The top side of the valve body is equipped with threaded hole,
The lower part of the plug screw is threadedly coupled with the threaded hole, and the plug screw is internally provided with groove, and the spring is placed in described recessed
In slot, described guide post one end is connect with one end of the spring, the other end of guide post and the valve stem contacts.
2. antistatic butterfly valve according to claim 1, it is characterised in that：Plug screw is equipped between the plug screw and the valve body
Pad.
3. antistatic butterfly valve according to claim 1, it is characterised in that：Another end surfaces of the guide post are semicircle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721925258.8U CN208057959U (en) | 2017-12-31 | 2017-12-31 | Antistatic butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721925258.8U CN208057959U (en) | 2017-12-31 | 2017-12-31 | Antistatic butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208057959U true CN208057959U (en) | 2018-11-06 |
Family
ID=63994347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721925258.8U Active CN208057959U (en) | 2017-12-31 | 2017-12-31 | Antistatic butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208057959U (en) |
-
2017
- 2017-12-31 CN CN201721925258.8U patent/CN208057959U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |