CN210566282U - Pneumatic regulating valve - Google Patents
Pneumatic regulating valve Download PDFInfo
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- CN210566282U CN210566282U CN201921355475.7U CN201921355475U CN210566282U CN 210566282 U CN210566282 U CN 210566282U CN 201921355475 U CN201921355475 U CN 201921355475U CN 210566282 U CN210566282 U CN 210566282U
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- valve
- gasket
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- valve body
- filler
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Abstract
The utility model relates to the technical field of pneumatic control valves, in particular to a pneumatic control valve, which comprises a valve body, a valve seat of an integrated structure is welded in the valve body, a valve seat gasket is arranged between the valve seat and the valve body, the other end of the valve seat is provided with a guide cylinder, the guide cylinder is positioned in the valve body, a valve core assembly is movably connected in the valve seat, a valve cover gasket is arranged between the upper surfaces of the valve body and the guide cylinder, a valve cover is in threaded connection above the valve body, a plurality of studs are screwed between the valve cover and the valve body, nuts are screwed above the studs, a filler is filled in a cavity in the middle of the valve cover, a filler gasket is arranged above the filler in the valve cover, a filler gland is covered above the filler gasket in the valve cover, a pneumatic actuating mechanism is in threaded connection above the valve cover, screw holes are arranged between the pneumatic actuating mechanism and two ends of the valve cover, all screwed up in the screw hole has the bolt, and the bolt all passes flat gasket and spring shim, the utility model discloses, sealed effect is better.
Description
Technical Field
The utility model relates to a pneumatic control valve technical field especially relates to a pneumatic control valve.
Background
The pneumatic regulating valve takes compressed air as a power source, takes an air cylinder as an actuator, drives a valve by means of accessories such as an electric valve positioner, a converter, an electromagnetic valve, a position-retaining valve and the like, realizes switching value or proportional regulation, and receives a control signal of an industrial automatic control system to regulate a pipeline medium: flow rate, pressure, temperature, etc. The sealing effect of the joint of the existing pneumatic valve is not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a pneumatic regulating valve.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pneumatic regulating valve is designed, and comprises a valve body, wherein a valve seat of an integral structure is welded in the valve body, a valve seat gasket is arranged between the valve seat and the valve body, a guide cylinder is arranged at the other end of the valve seat and is positioned in the valve body, a valve core assembly is movably connected in the valve seat, a valve cover gasket is arranged between the valve body and the upper surface of the guide cylinder, a valve cover is in threaded connection with the upper part of the valve body, a plurality of studs are screwed between the valve cover and the valve body, nuts are screwed on the studs, a filler is filled in a cavity in the middle of the valve cover, a filler gasket is arranged in the valve cover above the filler, a filler gland is covered on the filler gasket in the valve cover, a pneumatic actuating mechanism is in threaded connection with the upper part of the valve cover, screw holes are formed between the pneumatic actuating mechanism and two ends of the valve cover, and, spring gaskets are respectively arranged above the flat gaskets in a cushioning mode, bolts are screwed in the screw holes and penetrate through the flat gaskets and the spring gaskets.
Preferably, the other end of the pneumatic actuator is in threaded connection with a membrane cover, and the other end of the valve core assembly penetrates through the valve cover and the pneumatic actuator to be located in the membrane cover.
Preferably, the lower surface of the valve cover touches the valve cover gasket.
The utility model provides a pneumatic control valve, beneficial effect lies in: the sealing performance of each joint of the regulating valve is better, and the joint of the regulating valve is fixed more firmly.
Drawings
Fig. 1 is a schematic structural view of a pneumatic control valve according to the present invention;
fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;
fig. 3 is a schematic top view of fig. 1 according to the present invention.
In the figure: the valve comprises a valve body 1, a valve seat 2, a valve seat gasket 3, a guide cylinder 4, a valve core assembly 5, a valve cover gasket 6, a valve cover 7, a nut 8, a stud 9, a packing gland 10, a packing gasket 11, a packing 12, a flat gasket 13, a spring gasket 14, a bolt 15, a pneumatic actuator 16, a screw hole 17 and a membrane cover 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a pneumatic control valve comprises a valve body 1, a valve seat 2 welded in the valve body 1 and having an integrated structure, a valve seat gasket 3 padded between the valve seat 2 and the valve body 1, a guide cylinder 4 arranged at the other end of the valve seat 2 and located in the valve body 1, a valve core assembly 5 movably connected in the valve seat 2, wherein the valve core assembly 5 mainly comprises a valve core, a push rod and a valve rod, and the component structure of the valve core assembly 5 is the most common component structure, so detailed description is omitted.
There is valve gap gasket 6 to fill up between valve body 1 and the 4 upper surfaces of guide cylinder, 1 top threaded connection of valve body has valve gap 7, valve gap 7 lower surface touches mutually with valve gap gasket 6, disk seat gasket 3 is flexible graphite gasket with valve gap gasket 6, the graphite gasket is formed by pure graphite board or metal reinforcing graphite board cutting or punching press, numerous outstanding sealing performance has, it is corrosion-resistant, it is not ageing, do not become fragile class of characteristics, can long-term stable use in harsh operating mode condition, need maintain rarely, valve seat gasket 3's setting can play fine sealed effect to the coupling part of valve body 1 and disk seat 2, valve gap gasket 6's setting can play fine sealed effect to valve gap 7 and valve body 1's coupling part.
A plurality of studs 9 are screwed between the valve cover 7 and the valve body 1, the studs 9 are studs M10x45, nuts 8 are screwed above the studs 9, the nuts 8 are nuts M10, a packing 12 is filled in a cavity in the middle of the valve cover 7, the packing 12 can play a certain sealing role on the joint of the valve cover 7 to prevent leakage, a packing gasket 11 is arranged above the packing 12 in the valve cover 7, a packing gland 10 is covered above the packing gasket 11 in the valve cover 7, and the packing gasket 11 is arranged between the packing gland 10 and the packing 12 to increase the tightness of the packing gland 10 and achieve a better sealing effect, a pneumatic actuator 16 is connected with the upper part of the valve cover 7 through a thread, the pneumatic actuator 16 mainly comprises an actuating cylinder and a cylinder support, and the structure of the pneumatic actuator 16 is the most common constituent structure 1, so detailed description is omitted.
A screw hole 17 is arranged between the pneumatic actuator 16 and the two ends of the valve cover 7, a flat gasket 13 is padded above the screw hole 17, a spring gasket 14 is padded above the flat gasket 13, a bolt 15 is screwed in the screw hole 17, the bolt 15 is a hexagon bolt M10x30, the bolts 15 penetrate through the flat gasket 13 and the spring gasket 14, the other end of the pneumatic actuator 16 is in threaded connection with a membrane cover 18, a tray, a spring and a membrane are mainly installed in the membrane cover 18, the other end of the valve core assembly 5 penetrates through the valve cover 7 and the pneumatic actuator 16 and is located in the membrane cover 18, the valve core assembly 5 is controlled by the movable actuating mechanism 16 to do linear up and down movement, so as to realize the opening and closing of the valve body 1, and as the most common operation steps of the pneumatic regulating valve, therefore, without detailed description, the spring washer 14 can prevent loosening of the bolt 15 and make the bolt screwed more tightly, and the flat washer 13 can increase the contact area of the bolt 15 and prevent friction between the bolt 15 and the workpiece.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. A pneumatic regulating valve comprises a valve body (1) and is characterized in that a valve seat (2) of an integrated structure is welded in the valve body (1), a valve seat gasket (3) is arranged between the valve seat (2) and the valve body (1), a guide cylinder (4) is arranged at the other end of the valve seat (2), the guide cylinder (4) is positioned in the valve body (1), a valve core assembly (5) is movably connected in the valve seat (2), a valve cover gasket (6) is arranged between the upper surfaces of the valve body (1) and the guide cylinder (4), a valve cover (7) is in threaded connection above the valve body (1), a plurality of studs (9) are screwed between the valve cover (7) and the valve body (1), nuts (8) are screwed above the studs (9), a filler (12) is filled in a cavity in the middle of the valve cover (7), and a filler gasket (11) is arranged above the filler (12) in the valve cover (7), lie in packing gasket (11) top in valve gap (7) and be stamped packing gland (10), valve gap (7) top threaded connection has pneumatic actuator (16), screw (17) have been seted up between pneumatic actuator (16) and valve gap (7) both ends, screw (17) top has all been filled up flat gasket (13), flat gasket (13) top has all been filled up spring gasket (14), all screw up bolt (15) in screw (17), and bolt (15) all pass flat gasket (13) and spring gasket (14).
2. A pneumatic regulating valve according to claim 1, characterized in that the other end of the pneumatic actuator (16) is screwed with a membrane cover (18), and the other end of the valve core assembly (5) passes through the valve cover (7) and the pneumatic actuator (16) and is positioned in the membrane cover (18).
3. A pneumatic regulating valve according to claim 1, characterised in that the lower surface of the valve cover (7) is in contact with the valve cover gasket (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355475.7U CN210566282U (en) | 2019-08-21 | 2019-08-21 | Pneumatic regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921355475.7U CN210566282U (en) | 2019-08-21 | 2019-08-21 | Pneumatic regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566282U true CN210566282U (en) | 2020-05-19 |
Family
ID=70639315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921355475.7U Active CN210566282U (en) | 2019-08-21 | 2019-08-21 | Pneumatic regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566282U (en) |
-
2019
- 2019-08-21 CN CN201921355475.7U patent/CN210566282U/en active Active
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| GR01 | Patent grant |