CN214578937U - Pneumatic film regulating valve with liquid filtering structure - Google Patents
Pneumatic film regulating valve with liquid filtering structure Download PDFInfo
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- CN214578937U CN214578937U CN202120577755.3U CN202120577755U CN214578937U CN 214578937 U CN214578937 U CN 214578937U CN 202120577755 U CN202120577755 U CN 202120577755U CN 214578937 U CN214578937 U CN 214578937U
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- liquid filtering
- fixing
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Abstract
The utility model discloses a pneumatic membrane regulating valve with a liquid filtering structure, which comprises a valve body, a valve cover arranged on the valve body, a bracket arranged on the valve cover, a pneumatic actuator arranged on the bracket and a valve rod connected with the pneumatic actuator; the valve is characterized in that a liquid filtering device is arranged in the valve body; the liquid filtering device arranged in the valve body comprises a fixed support and a filter screen arranged on the fixed support; the fixed bracket is provided with a fixed boss and a positioning boss; the valve body is provided with a fixing groove matched with the fixing boss and a positioning groove matched with the positioning boss. The utility model discloses simple structure, the installation of being convenient for can filter the liquid that passes through, prevents that impurity from piling up the normal use that influences the valve body in the valve body.
Description
Technical Field
The utility model relates to a pneumatic membrane governing valve technical field specifically indicates a pneumatic membrane governing valve with liquid filtration.
Background
The pneumatic regulating valve takes compressed gas as a power source, realizes switching value or proportional regulation, receives a control signal of an industrial automatic control system to regulate a pipeline medium: various technological process parameters such as flow, pressure, temperature, liquid level, among the prior art, all can have impurity in the liquid in the pneumatic control valve, and impurity can pile up in the valve body after long-time use to the normal use of valve body has been influenced. To this end, a pneumatic membrane control valve with a liquid filter structure is proposed.
Disclosure of Invention
The utility model aims at solving current technique, all can have impurity in the liquid in the pneumatic control valve, long-time use back impurity can be piled up in the valve body to influence the normal use scheduling problem of valve body and provide a pneumatic membrane governing valve with liquid filtration.
In order to achieve the above purpose, the utility model provides a following technical scheme: a pneumatic membrane regulating valve with a liquid filtering structure comprises a valve body, a valve cover arranged on the valve body, a support arranged on the valve cover, a pneumatic actuator arranged on the support and a valve rod connected with the pneumatic actuator; the valve is characterized in that a liquid filtering device is arranged in the valve body; the liquid filtering device arranged in the valve body comprises a fixed support and a filter screen arranged on the fixed support; the fixed bracket is provided with a fixed boss and a positioning boss; the valve body is provided with a fixing groove matched with the fixing boss and a positioning groove matched with the positioning boss.
Preferably, the pneumatic actuator mounted on the bracket and connected with the valve rod comprises a lower membrane shell, an upper membrane shell mounted on the lower membrane shell, and a membrane mounted between the lower membrane shell and the upper membrane shell; a spring fixing plate is arranged on the diaphragm; and a spring is arranged between the spring fixing plate and the upper membrane shell.
Preferably, the valve rod is provided with a valve core and a fixing nut; the valve rod is installed on a spring fixing plate in the pneumatic actuator through a fixing nut.
Preferably, a valve seat is further installed in the valve body; a packing groove is formed in the valve cover; the filler groove is internally provided with a filler; a packing pressing plate is arranged on the packing; the packing pressing plate is fixed on the valve cover through screws.
The utility model has the advantages that: this pneumatic membrane governing valve simple structure, the installation of being convenient for can filter the liquid that passes through, prevents that impurity from piling up the normal use that influences the valve body in the valve body.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a partial enlarged view of the position a of the present invention.
Fig. 3 is a partial enlarged view of the present invention at B.
Fig. 4 is a partial enlarged view of the present invention at C.
Illustration of the drawings: 1, a valve body; 101 fixing a groove; 102 a positioning groove; 103 valve seat; 2, a valve cover; 201 a packing groove; 202, filling; 203 a packing press plate; 3, a bracket; 4, a pneumatic actuator; 401 lower membrane shell; 402, coating a membrane shell; 403 diaphragm; 404 a spring retainer plate; 405 a spring; 5, a valve rod; 501, a valve core; 502 securing a nut; 6 liquid filtering device; 601 fixing a bracket; 602, filtering a screen; 603 fixing the boss; 604 locate the boss.
Detailed Description
The pneumatic membrane control valve with a liquid filtering structure according to the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-3, a pneumatic membrane regulating valve with a liquid filtering structure comprises a valve body 1, a valve cover 2 mounted on the valve body 1, a bracket 3 mounted on the valve cover 2, a pneumatic actuator 4 mounted on the bracket 3, and a valve rod 5 connected with the pneumatic actuator 4; the valve is characterized in that a liquid filtering device 6 is arranged in the valve body 1; the liquid filtering device 6 installed in the valve body 1 comprises a fixed bracket 601 and a filter screen 602 installed on the fixed bracket 601; a fixing boss 603 and a positioning boss 604 are arranged on the fixing bracket 601; the valve body 1 is provided with a fixing groove 101 matched with the fixing boss 603 and a positioning groove 604 matched with the positioning boss 604; through the arrangement of the positioning boss 604 on the fixing bracket 601, the fixing bracket 601 is matched with the positioning groove 102 through the positioning boss 604, and the fixing bracket 601 is positioned and installed, so that the fixing bracket 601 is convenient to position and install; through the arrangement of the fixing boss 603 on the fixing bracket 601, the fixing bracket 601 is matched with the fixing groove 101 through the fixing boss 603, and the fixing bracket 601 is installed on the valve body 1, so that the fixing bracket 601 is convenient to fixedly install; through the setting of liquid filter equipment 6 in the valve body 1, liquid filter equipment 6 can filter the impurity through in the valve body 1 liquid, prevents that impurity from piling up in valve body 1 to can guarantee the normal use of valve body 1.
Referring to fig. 1, the pneumatic actuator 4 mounted on the bracket 3 and connected to the valve rod 5 includes a lower diaphragm casing 401, an upper diaphragm casing 402 mounted on the lower diaphragm casing 401, and a diaphragm 403 mounted between the lower diaphragm casing 401 and the upper diaphragm casing 402; a spring fixing plate 404 is arranged on the diaphragm 403; a spring 405 is arranged between the spring fixing plate 404 and the upper membrane shell 402; a valve core 501 and a fixing nut 502 are arranged on the valve rod 5; the valve rod 5 is arranged on a spring fixing plate 404 in the pneumatic actuator 4 through a fixing nut 502; through the setting of the fixing nut 502 on the valve rod 5, the valve rod 5 is installed on the spring fixing plate 404 through the fixing nut 502, thereby facilitating the installation of the valve rod 5.
Referring to fig. 4, a valve seat 103 is further installed in the valve body 1; a packing groove 201 is formed in the valve cover 2; a filler 202 is arranged in the filler groove 201; a packing pressing plate 203 is arranged on the packing 202; the packing pressing plate 203 is fixed on the valve cover 2 through screws; through the arrangement of the packing groove 201 on the valve cover 2, the packing 202 is arranged in the packing groove 201, so that the sealing effect on the valve body 1 can be achieved, and the valve body 1 can be normally used; by providing the packing holder 203 on the packing groove 201, the packing holder 203 is fixed to the bonnet 2 by screws, and the packing 202 is fixed, thereby preventing the leakage of the packing 202.
In the utility model, at first, install filter screen 602 on fixed bolster 601 through the screw, then with the location boss 604 on the fixed bolster 601 and the positioning groove 102 looks adaptation on the valve body 1, with the fixed boss 603 on the fixed bolster 601 and the fixed groove 101 looks adaptation on the valve body simultaneously, install the fixed bolster 601 on the valve body 1, then install valve gap 2 on the valve body 1 through the bolt, when the valve body 1 is worked, compressed gas gets into in the pneumatic actuator 4 from the air inlet on the membrane shell 401 down, when the power of compressed air is greater than the power of spring 405, drive diaphragm 403, spring fixed plate 404 and install valve rod 5 upward movement on spring fixed plate 404, spring 405 begins to shrink, valve rod 5 drives case 501 upward movement, liquid flows into valve body 1 and through the filtration of filter screen 602, flow out from valve body 1 again, when the power of spring 405 is greater than the power of compressed air, compressed air is discharged from the air inlet, the spring 405 starts to restore to the original state and drives the spring fixing plate 404, the diaphragm 403 and the valve rod 5 installed on the spring fixing plate 404 to move downwards, the valve rod 5 drives the valve core 501 to move downwards and close the valve seat 103, and therefore the valve body 1 stops working.
The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.
Claims (4)
1. A pneumatic membrane regulating valve with a liquid filtering structure comprises a valve body (1), a valve cover (2) arranged on the valve body (1), a support (3) arranged on the valve cover (2), a pneumatic actuator (4) arranged on the support (3) and a valve rod (5) connected with the pneumatic actuator (4); the valve is characterized in that a liquid filtering device (6) is arranged in the valve body (1); the liquid filtering device (6) arranged in the valve body (1) comprises a fixed support (601) and a filter screen (602) arranged on the fixed support (601); a fixing boss (603) and a positioning boss (604) are arranged on the fixing support (601); the valve body (1) is provided with a fixing groove (101) matched with the fixing boss (603) and a positioning groove (102) matched with the positioning boss (604).
2. A pneumatic membrane regulator valve with a liquid filtering structure as claimed in claim 1, wherein: the pneumatic actuator (4) which is arranged on the support (3) and connected with the valve rod (5) comprises a lower membrane shell (401), an upper membrane shell (402) arranged on the lower membrane shell (401), and a membrane (403) arranged between the lower membrane shell (401) and the upper membrane shell (402); a spring fixing plate (404) is arranged on the diaphragm (403); and a spring (405) is arranged between the spring fixing plate (404) and the upper membrane shell (402).
3. A pneumatic membrane regulator valve with a liquid filtering structure as claimed in claim 2, wherein: a valve core (501) and a fixing nut (502) are arranged on the valve rod (5); the valve rod (5) is arranged on a spring fixing plate (404) in the pneumatic actuator (4) through a fixing nut (502).
4. A pneumatic membrane regulator valve with a liquid filtering structure as claimed in claim 1, wherein: a valve seat (103) is also arranged in the valve body (1); a packing groove (201) is arranged on the valve cover (2); a filler (202) is arranged in the filler groove (201); a packing pressing plate (203) is arranged on the packing (202); the packing pressing plate (203) is fixed on the valve cover (2) through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120577755.3U CN214578937U (en) | 2021-03-22 | 2021-03-22 | Pneumatic film regulating valve with liquid filtering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120577755.3U CN214578937U (en) | 2021-03-22 | 2021-03-22 | Pneumatic film regulating valve with liquid filtering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578937U true CN214578937U (en) | 2021-11-02 |
Family
ID=78354974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120577755.3U Active CN214578937U (en) | 2021-03-22 | 2021-03-22 | Pneumatic film regulating valve with liquid filtering structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578937U (en) |
-
2021
- 2021-03-22 CN CN202120577755.3U patent/CN214578937U/en active Active
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