CN218761567U - Pneumatic diaphragm valve - Google Patents
Pneumatic diaphragm valve Download PDFInfo
- Publication number
- CN218761567U CN218761567U CN202222793447.1U CN202222793447U CN218761567U CN 218761567 U CN218761567 U CN 218761567U CN 202222793447 U CN202222793447 U CN 202222793447U CN 218761567 U CN218761567 U CN 218761567U
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- cylinder
- diaphragm
- valve body
- valve
- baffle
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Abstract
The utility model discloses a pneumatic diaphragm valve, including valve body, cylinder and diaphragm, the intermediate position of valve body is connected with the baffle, the cylinder is fixed on the valve body through coupling nut, the diaphragm is fixed on the valve body, the piston of cylinder is connected with the conflict piece, and liquid can flow through the clearance between baffle and the diaphragm, the conflict piece can conflict the baffle through the diaphragm; the one end that the cylinder piston kept away from to the touch multitouch is connected with the pilot lever, the pilot lever is connected with the spring, the one end and the cylinder of spring are connected, the pilot lever cover is established in the spring, the valve body is connected with the cylinder head, the spring sets up in the cylinder head, the pilot lever passes the cylinder head, the cylinder head is connected with O shape circle, the pilot lever passes O shape circle, the utility model provides a pneumatic diaphragm valve is convenient for the staff and in time knows the switching condition of valve.
Description
Technical Field
The application relates to the field of diaphragm valves, in particular to a pneumatic diaphragm valve.
Background
Diaphragm valves are made by installing a flexible diaphragm or combined diaphragms in the valve body and bonnet, the closing member of which is a compression device connected to the diaphragm. The diaphragm valve has the advantages that the operating mechanism is separated from the medium channel, so that the purity of the working medium is ensured, and the possibility that the medium in the pipeline impacts the working part of the operating mechanism is also prevented.
The ultra-pure pipeline conveys substances such as poison, strong acid, strong alkali and the like which are harmful to human body contact, the environment is full of corrosive steam, and certain corrosivity is generated outside the valve. Because the diaphragm valve opens and shuts through cylinder control, do not have the handle to expose outside the valve body, therefore the switching of valve is difficult to carry out effectual demonstration, and the staff is difficult to know the switching condition of valve in time.
SUMMERY OF THE UTILITY MODEL
In order to make the staff in time know the switching condition of valve, this application provides a pneumatic diaphragm valve.
The application provides a pneumatic diaphragm valve adopts following technical scheme:
a pneumatic diaphragm valve comprises a valve body, an air cylinder and a diaphragm, wherein a baffle is connected to the middle of the valve body, the air cylinder is fixed on the valve body through a connecting nut, the diaphragm is fixed on the valve body, a piston of the air cylinder is connected with a contact block, liquid can flow through a gap between the baffle and the diaphragm, and the contact block can contact the baffle through the diaphragm;
the valve body is connected with a cylinder cover, the spring is arranged in the cylinder cover, the indicating rod penetrates through the cylinder cover, the cylinder cover is connected with an O-shaped ring, and the indicating rod penetrates through the O-shaped ring.
Through adopting above-mentioned technical scheme, when needs valve closing, control cylinder, the piston of cylinder drives the conflict piece and removes, the conflict piece contradicts the diaphragm, the diaphragm contradicts the baffle, thereby control liquid's flow, the in-process that cylinder piston control liquid flows, the pilot lever removes along with the piston, when the conflict piece contradicts with the baffle, the spring is in compression state, when the baffle is kept away from to the conflict piece, the spring is in normal flexible state, it is ejecting to instruct the pole, thereby display valve's switching, the staff of being convenient for in time knows the switching condition of valve.
Optionally, a protective cover is connected to the cylinder head, the indication rod can enter the protective cover, and the extension and retraction of the indication rod can be seen through the protective cover.
Through adopting above-mentioned technical scheme, the visor is protected the indicator lever, avoids debris to collide the indicator lever, also avoids corrosive gas in the air to corrode indicator lever and O shape circle simultaneously, improves the seal of device.
Optionally, the indication rod is in threaded connection with a piston of the cylinder.
Through adopting above-mentioned technical scheme, when the pilot lever broke down, be convenient for dismantle the pilot lever from the cylinder.
Optionally, the contact block is in threaded connection with a piston of the cylinder.
Through adopting above-mentioned technical scheme, be convenient for dismantle the contact block from the piston of cylinder.
Optionally, the valve body is connected with a bearing block, and when the contact block is abutted against the baffle, the contact block is abutted against the bearing block.
Through adopting above-mentioned technical scheme, accept the piece and increased the area of contact of conflict piece with the valve body, improve the leakproofness of coming at the closure in-process.
Optionally, a pressing block is arranged in the valve body and located between the diaphragm and the cylinder.
Through adopting above-mentioned technical scheme, the briquetting has balanced the pressure between valve body and the cylinder, has improved the life of diaphragm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a having set up the pilot lever, when needing the valve to close, the control cylinder, the piston of cylinder drives the conflict piece and moves, the conflict piece is contradicted to the diaphragm, the diaphragm contradicts the baffle, thereby the flow of control liquid, the in-process that cylinder piston control liquid flows, the pilot lever moves along with the piston, when the conflict piece is contradicted with the baffle, the spring is in compression state, when the conflict piece is kept away from the baffle, the spring is in normal flexible state, push out the pilot lever, thereby the switching of display valve, the staff of being convenient for knows the switching condition of valve in time;
the protective cover is arranged, the protective cover protects the indicating rod, so that sundries are prevented from colliding with the indicating rod, meanwhile, corrosive gas in the air is prevented from corroding the indicating rod and the O-shaped ring, and the sealing performance of the device is improved;
the utility model discloses a set up the briquetting, the briquetting has balanced the pressure between valve body and the cylinder, has improved the life of diaphragm.
Drawings
Fig. 1 is a sectional view of a pneumatic diaphragm valve according to the present invention.
In the figure: 1. a valve body; 2. a cylinder; 3. a diaphragm sheet; 4. a baffle plate; 5. a connecting nut; 6. a contact block; 7. an indication lever; 8. a spring; 9. an O-shaped ring; 10. a protective cover; 11. a bearing block; 12. and (7) briquetting.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides an embodiment of a pneumatic diaphragm valve, which includes a valve body 1, a cylinder 2, and a diaphragm 3. The intermediate position of valve body 1 is connected with baffle 4, and cylinder 2 passes through coupling nut 5 to be fixed on valve body 1, and on 3 fixed valve bodies 1 of diaphragm, the piston connection of cylinder 2 has conflict piece 6, and the clearance between liquid accessible baffle 4 and the diaphragm 3 flows, and 6 accessible diaphragm 3 of conflict piece contradict baffle 4. The one end that the cylinder 2 piston was kept away from to touch multitouch 6 is connected with indicator lever 7, and indicator lever 7 is connected with spring 8, and the one end and cylinder 2 of spring 8 are connected, and the 7 covers of indicator lever are established in spring 8, and valve body 1 is connected with the 2 covers of cylinder, and spring 8 sets up in the 2 covers of cylinder, and indicator lever 7 passes the 2 covers of cylinder, and the 2 covers of cylinder are connected with O shape circle 9, and indicator lever 7 passes O shape circle 9.
The cylinder 2 is connected with a protective cover 10 in a covering mode, the indicating rod 7 can enter the protective cover 10, and the extension and contraction of the indicating rod 7 can be seen through the protective cover 10. The protective cover 10 protects the indicating rod 7, prevents sundries from colliding with the indicating rod 7, and simultaneously prevents corrosive gas in the air from corroding the indicating rod 7 and the O-shaped ring 9, thereby improving the tightness of the device.
The indicating rod 7 is screwed with the piston of the cylinder 2. The contact block 6 is in threaded connection with the piston of the cylinder 2. When the indicating rod 7 is out of order, the indicating rod 7 is convenient to be detached from the cylinder 2. Facilitating the detachment of the abutment block 6 from the piston of the cylinder 2.
The valve body 1 is connected with a bearing block 11, and when the abutting block 6 abuts against the baffle 4, the abutting block 6 abuts against the bearing block 11. The contact area of the abutting block 6 and the valve body 1 is increased by the bearing block 11, and the sealing performance in the closing process is improved.
A press block 12 is arranged in the valve body 1, and the press block 12 is positioned between the diaphragm 3 and the cylinder 2. The pressure between the valve body 1 and the cylinder 2 is balanced by the pressing block 12, and the service life of the diaphragm 3 is prolonged.
The working principle is as follows:
when needs valve closing, control cylinder 2, the piston of cylinder 2 drives and supports touch multitouch 6 and remove, support touch multitouch 6 and contradict diaphragm 3, diaphragm 3 is contradicted baffle 4, thereby the flow of control liquid, the in-process that 2 piston control liquid of cylinder flows, pilot lever 7 moves along with the piston, when contradicting block 6 and baffle 4 conflict, spring 8 is in compression state, when keeping away from baffle 4 to touch multitouch 6, spring 8 is in normal flexible state, 7 ejecting with pilot lever, thereby display valve's switching, the staff of being convenient for in time knows the switching condition of valve.
The protective cover 10 protects the indicating rod 7, prevents sundries from colliding with the indicating rod 7, and simultaneously prevents corrosive gas in the air from corroding the indicating rod 7 and the O-shaped ring 9, thereby improving the tightness of the device.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A pneumatic diaphragm valve, characterized by: the valve comprises a valve body (1), an air cylinder (2) and a diaphragm (3), wherein a baffle (4) is connected to the middle position of the valve body (1), the air cylinder (2) is fixed on the valve body (1) through a connecting nut (5), the diaphragm (3) is fixed on the valve body (1), a piston of the air cylinder (2) is connected with a touch block (6), liquid can flow through a gap between the baffle (4) and the diaphragm (3), and the touch block (6) can touch the baffle (4) through the diaphragm (3);
the one end that the cylinder (2) piston was kept away from and is kept away from touch multitouch (6) is connected with indicator lever (7), indicator lever (7) are connected with spring (8), the one end and cylinder (2) of spring (8) are connected, indicator lever (7) cover is established in spring (8), valve body (1) is connected with cylinder (2) lid, spring (8) set up in cylinder (2) lid, indicator lever (7) pass cylinder (2) lid, cylinder (2) lid is connected with O shape circle (9), indicator lever (7) pass O shape circle (9).
2. A pneumatic diaphragm valve according to claim 1, wherein: the cylinder (2) is connected with a protective cover (10) in a covering mode, the indicating rod (7) can enter the protective cover (10), and the stretching of the indicating rod (7) can be seen through the protective cover (10).
3. A pneumatic diaphragm valve according to claim 1, wherein: the indicating rod (7) is in threaded connection with a piston of the cylinder (2).
4. A pneumatic diaphragm valve according to claim 1 wherein: the contact block (6) is in threaded connection with a piston of the cylinder (2).
5. A pneumatic diaphragm valve according to claim 1 wherein: the valve body (1) is connected with a bearing block (11), and when the contact block (6) is collided with the baffle (4), the contact block (6) is collided with the bearing block (11).
6. A pneumatic diaphragm valve according to claim 1, wherein: a pressing block (12) is arranged in the valve body (1), and the pressing block (12) is located between the diaphragm (3) and the air cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222793447.1U CN218761567U (en) | 2022-10-21 | 2022-10-21 | Pneumatic diaphragm valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222793447.1U CN218761567U (en) | 2022-10-21 | 2022-10-21 | Pneumatic diaphragm valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218761567U true CN218761567U (en) | 2023-03-28 |
Family
ID=85700719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222793447.1U Active CN218761567U (en) | 2022-10-21 | 2022-10-21 | Pneumatic diaphragm valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218761567U (en) |
-
2022
- 2022-10-21 CN CN202222793447.1U patent/CN218761567U/en active Active
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