CN214119068U

CN214119068U - Pneumatic film large-adjustable-ratio regulating valve

Info

Publication number: CN214119068U
Application number: CN202120137435.6U
Authority: CN
Inventors: 王明飞
Original assignee: Hangzhou Fuyang Fu Heng Instrument Valve Co ltd
Current assignee: Hangzhou Fuyang Fu Heng Instrument Valve Co ltd
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-09-03
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses a pneumatic film large-adjustable-ratio regulating valve, which comprises a valve body, a valve cover arranged on the valve body, a bracket arranged on the valve cover and an actuating mechanism arranged on the bracket; the actuating mechanism is provided with a valve rod; the valve rod is provided with a large valve core; the large valve core is provided with a regulating and connecting spring; the device is characterized in that a pressure plate is arranged on the adjusting spring; the pressure plate is provided with an adjusting nut; the valve body is also provided with a fixing component. The utility model discloses simple structure, the installation and the dismantlement of being convenient for can carry out the size of regulating flow according to the installation environment.

Description

Pneumatic film large-adjustable-ratio regulating valve

Technical Field

The utility model relates to a governing valve technical field specifically indicates a pneumatic membrane is adjustable than governing valve greatly.

Background

In modern industrial production process, the governing valve is arranged in control system changes fluid flow's in the pipeline device, and among the prior art, the valve body all adopts the mode of bolt to install fixedly with the valve gap, nevertheless through long-time use, the bolt of installing on valve body and valve gap can rust to installation and the dismantlement in the later stage of being not convenient for, and the adjusting spring of installing in the valve body can not adjust, thereby has injectd the pressure of valve body, has reduced the scope of using. Therefore, the pneumatic membrane regulating valve with the large adjustable ratio is provided.

Disclosure of Invention

The utility model aims at solving current technique, the mode that valve body and valve gap all adopted the bolt is installed fixedly, nevertheless through long-time use, installs the bolt on valve body and valve gap and can rust to be not convenient for the installation and the dismantlement in later stage, and install the adjusting spring in the valve body and can not adjust, thereby limited the pressure of valve body, reduced the scope scheduling problem of use and provided a pneumatic film big adjustable ratio governing valve.

In order to achieve the above purpose, the utility model provides a following technical scheme: a pneumatic membrane large-adjustable-ratio regulating valve comprises a valve body, a valve cover arranged on the valve body, a support arranged on the valve cover and an actuating mechanism arranged on the support; the actuating mechanism is provided with a valve rod; the valve rod is provided with a large valve core; the large valve core is provided with a regulating and connecting spring; the device is characterized in that a pressure plate is arranged on the adjusting spring; the pressure plate is provided with an adjusting nut; the valve body is also provided with a fixing component.

Preferably, the fixing component arranged on the valve body comprises a fixing plate and a supporting rod movably arranged on the fixing plate; the supporting rod is provided with a cushion block; and the cushion block is provided with a fixing nut.

Preferably, the valve body is also provided with a valve seat and a cage sleeve; the cage sleeve is also provided with a large outlet; the valve body is also provided with a medium inlet and a medium outlet.

Preferably, the valve rod mounted on the actuating mechanism is also provided with a fixed block; the big valve core is arranged on the valve rod through a fixed block; the valve rod is also provided with a small valve core; the big valve core is provided with a valve core groove matched with the small valve core; the big valve core is also provided with a small inlet and a small outlet.

Preferably, the actuator comprises a lower membrane shell, an upper membrane shell mounted on the lower membrane shell and a membrane mounted between the upper membrane shell and the lower membrane shell; a spring fixing plate is arranged on the diaphragm; a spring is arranged between the spring fixing plate and the upper membrane shell; a valve rod fixing nut is further mounted on the valve rod; the valve rod is fixedly arranged on a spring fixing plate in the actuating mechanism through a valve rod fixing nut.

Preferably, a packing groove is further formed in the valve cover; the filler groove is internally provided with a filler; a bushing is arranged on the filler; the bushing is provided with a packing pressing plate; and the packing pressure plate is fixedly arranged on the valve cover through screws.

The utility model has the advantages that: the regulating valve is simple in structure, convenient to install and detach, capable of regulating flow according to installation environment and capable of enlarging the application range.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of the position a of the present invention.

Illustration of the drawings: 1, a valve body; 101 a valve seat; 102 a cage sleeve; 103 large outlet; 104 a medium inlet; 105 a medium outlet; 2, a valve cover; 201 a packing groove; 202, filling; 203 a bushing; 204 a packing press plate; 3, a bracket; 4, an actuating mechanism; 401 lower membrane shell; 402, coating a membrane shell; 403 diaphragm; 404 a spring retainer plate; 405 a spring; 5, a valve rod; 501, fixing blocks; 502 small valve core; 503 a valve spool groove; 504 small inlets; 505 small outlet; 506 a valve stem retaining nut; 6 big valve core; 7, adjusting and connecting a spring; 701, pressing a plate; 702 adjusting the nut; 8 fixing the component; 801 fixing plates; 802 supporting rods; 803 cushion blocks; 804 secure the nut.

Detailed Description

The pneumatic membrane large adjustable ratio regulating valve of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, the pneumatic diaphragm large adjustable ratio regulating valve in the present embodiment includes a valve body 1, a valve cover 2 mounted on the valve body 1, a bracket 3 mounted on the valve cover 2, and an actuator 4 mounted on the bracket 3; the actuating mechanism 4 is provided with a valve rod 5; a large valve core 6 is arranged on the valve rod 5; an adjusting spring 7 is arranged on the big valve core 6; the device is characterized in that a pressure plate 701 is arranged on the adjusting spring 7; an adjusting nut 702 is arranged on the pressure plate 701; the valve body 1 is also provided with a fixing component 8; the fixing component 8 arranged on the valve body 1 comprises a fixing plate 801 and a supporting rod 802 movably arranged on the fixing plate 801; a cushion block 803 is arranged on the support rod 802; a fixing nut 804 is arranged on the cushion block 803; the valve body 1 is also provided with a valve seat 101 and a cage 102; a large outlet 103 is also formed in the cage sleeve 102; the valve body 1 is also provided with a medium inlet 104 and a medium outlet 105; by installing the fixing component 8 on the valve body 1, when the valve body 1 and the valve cover 2 are installed, only the support rod 802 needs to be kept in a vertical direction, then the fixing nut 804 is screwed on the support rod 802, the fixing nut 804 is pushed to the valve cover 2 direction through the cushion block 803 until the knob of the fixing nut 807 is not moved, and the cushion block 803 is fixed between the valve cover 2 and the fixing nut 804, so that the valve cover 2 is fixedly installed on the valve body 1, and the installation and the disassembly of the valve cover 2 are convenient; the pressure plate 701 is mounted on the adjusting spring 7, the adjusting nut 702 is mounted on the pressure plate 701, and the pressure of the adjusting spring 7 can be adjusted by using the adjusting nut 702, so that the application range can be enlarged.

Referring to fig. 2, the valve rod 5 mounted on the actuator 4 is further provided with a fixing block 501; the big valve core 6 is arranged on the valve rod 5 through a fixing block 501; the valve rod 5 is also provided with a small valve core 502; the big valve core 6 is provided with a valve core groove 503 matched with the small valve core 502; the big valve core 6 is also provided with a small inlet 504 and a small outlet 505; through installing big case 6 on the valve rod 5, set up little case 502 on the valve rod 5, set up the case groove 503 with little case 502 looks adaptation in the big case 6, when the low discharge, little case 502 promotes valve rod 5 and moves, and when large-traffic, big case 6 promotes valve rod 5 and moves to use the case of equidimension not under the flow condition of difference, make the regulation of flow bigger.

Referring to fig. 1, the actuator 4 includes a lower membrane casing 401, an upper membrane casing 402 mounted on the lower membrane casing 401, and a membrane 403 mounted between the upper membrane casing 402 and the lower membrane casing 401; 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 rod fixing nut 506 is also arranged on the valve rod 5; the valve rod 5 is fixedly arranged on a spring fixing plate 404 in the actuating mechanism 4 through a valve rod fixing nut 506; a packing groove 201 is further formed in the valve cover 2; a filler 202 is arranged in the filler groove 201; a bushing 203 is arranged on the filler 202; a packing pressing plate 204 is arranged on the bushing 203; the packing pressing plate 204 is fixedly arranged on the valve cover 2 through screws; through set up packing groove 201 on valve gap 2, installation filler 202 in packing groove 201, installation bush 203 on the filler 202, installation packing clamp plate 204 on the bush 203 to can prevent that valve body 1 medium from leaking when using, influencing valve body 1's normal use, play sealed effect.

The utility model discloses a working process, the medium gets into in the valve body 1 from medium entry 104, the medium promotes little case 502 upward movement, little case 502 drives valve rod 5 upward movement, valve rod 5 drives diaphragm 403 and installs the upward movement of spring fixed plate 404 on diaphragm 403, spring 405 begins to shrink, the medium gets into in big case 6 from little import 504, then get into cage 102 through little export 505, discharge from medium export 105 through big export 103 on cage 102, after little case 502 moves to the limited position, the pressure of medium entry 104 is still increasing, thereby promote big case 6 upward movement, make regulating spring 7 begin to shrink, big case 6 drives little case 502 and valve rod 5 and continues upward movement, thereby the flow has been increaseed, when the pressure of medium entry 104 reduces, spring 405 and regulating spring 7 begin to recover the original state, spring drive spring fixed plate 404 and diaphragm 403 downward movement, the diaphragm 403 drives the valve rod 5 to move downwards, and the valve rod 5 drives the large valve core 6 and the small valve core 502 to move downwards, so that the medium inlet 104 and the medium outlet 105 are blocked, and the valve body 1 stops operating.

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

1. A pneumatic membrane large-adjustable-ratio regulating valve comprises a valve body (1), a valve cover (2) arranged on the valve body (1), a support (3) arranged on the valve cover (2) and an actuating mechanism (4) arranged on the support (3); a valve rod (5) is arranged on the actuating mechanism (4); a large valve core (6) is arranged on the valve rod (5); an adjusting spring (7) is arranged on the big valve core (6); the device is characterized in that a pressure plate (701) is arranged on the adjusting spring (7); an adjusting nut (702) is arranged on the pressure plate (701); and the valve body (1) is also provided with a fixing component (8).

2. A pneumatic diaphragm high turndown ratio regulator valve as claimed in claim 1, wherein: the fixing component (8) arranged on the valve body (1) comprises a fixing plate (801) and a supporting rod (802) movably arranged on the fixing plate (801); a cushion block (803) is arranged on the supporting rod (802); and a fixing nut (804) is arranged on the cushion block (803).

3. A pneumatic diaphragm high turndown ratio regulator valve as claimed in claim 2, wherein: the valve body (1) is also provided with a valve seat (101) and a cage sleeve (102); a large outlet (103) is also arranged on the cage sleeve (102); the valve body (1) is also provided with a medium inlet (104) and a medium outlet (105).

4. A pneumatic diaphragm high turndown ratio regulator valve as claimed in claim 1, wherein: a fixed block (501) is also arranged on the valve rod (5) arranged on the actuating mechanism (4); the big valve core (6) is arranged on the valve rod (5) through a fixing block (501); a small valve core (502) is also arranged on the valve rod (5); the big valve core (6) is provided with a valve core groove (503) matched with the small valve core (502); the big valve core (6) is also provided with a small inlet (504) and a small outlet (505).

5. The pneumatic diaphragm high turndown ratio regulator valve of claim 4, wherein: the actuator (4) comprises a lower membrane shell (401), an upper membrane shell (402) mounted on the lower membrane shell (401), and a membrane (403) mounted between the upper membrane shell (402) and the lower membrane shell (401); 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 rod fixing nut (506) is further mounted on the valve rod (5); the valve rod (5) is fixedly arranged on a spring fixing plate (404) in the actuating mechanism (4) through a valve rod fixing nut (506).

6. A pneumatic diaphragm high turndown ratio regulator valve as claimed in claim 1, wherein: a packing groove (201) is also formed in the valve cover (2); a filler (202) is arranged in the filler groove (201); a bushing (203) is arranged on the filler (202); a packing pressing plate (204) is arranged on the bushing (203); the packing pressing plate (204) is fixedly arranged on the valve cover (2) through screws.