CN216951773U

CN216951773U - Pneumatic diaphragm valve of flow control location

Info

Publication number: CN216951773U
Application number: CN202220316200.8U
Authority: CN
Inventors: 葛之谦; 陈攀; 陈建飞; 余凯迪
Original assignee: Zhejiang Amy Fluid Technology Co ltd
Current assignee: Zhejiang Amy Fluid Technology Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-07-12
Anticipated expiration: 2032-02-16

Abstract

The utility model discloses a flow regulation positioning pneumatic diaphragm valve which comprises a valve body, a flow passage, a support, a valve rod, a valve clack, a diaphragm, a cylinder, a piston, an air tap, a compression spring, a positioning frame and a positioner, wherein the valve body is provided with a flow passage; an extension section is arranged in the bracket, and a sealing cavity is formed between the extension section and the inner wall of the bracket; a bearing seat is arranged outside the bracket, and an injection component is arranged on the bearing seat; the injection component comprises a shell, a slot, a stroke groove, a push rod, a butting ring, an injection channel, a via hole, an extension channel and a lead-out channel; the left side center department of push rod has seted up the inside groove, is provided with the ball sealer in the inside groove, and the ball sealer can just in time support on deriving the passageway, realizes cutting deriving the passageway. The utility model has the following advantages and effects: the heat preservation medium is stored through the sealed cavity, so that the purpose of heat preservation is achieved, and the situation that opening and closing are difficult due to icing of residual water is avoided; and the injection of the heat preservation medium is realized by arranging the open slot and the injection component.

Description

Pneumatic diaphragm valve of flow control location

Technical Field

The utility model relates to the technical field of valves, in particular to a pneumatic diaphragm valve for flow regulation and positioning.

Background

Diaphragm valves are shut-off valves that use a diaphragm as a closure to close a flow path, shut off fluid, and separate the valve body cavity from the bonnet cavity. When the temperature of the existing diaphragm valve is lower than zero at night in cold winter, the residual water left inside and outside the valve body can be frozen, so that the diaphragm valve is difficult to open and close; this is a situation that needs to be avoided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flow regulating and positioning pneumatic diaphragm valve to solve the problems in the background art.

The technical purpose of the utility model is realized by the following technical scheme: a flow regulation positioning pneumatic diaphragm valve comprises a valve body, wherein a flow channel is formed in the valve body, a support is arranged at the upper end of the valve body, a valve rod longitudinally penetrates through the valve body, a valve clack capable of penetrating into the flow channel is fixedly arranged at the lower end of the valve rod, a diaphragm is arranged at the lower end of the valve clack, an air cylinder connected with the valve rod and used for providing driving force for the valve rod is arranged at the upper end of the support, a piston, an air faucet and a compression spring are arranged in the air cylinder, a positioning frame is arranged at the upper end of the air cylinder, and a positioner is arranged on the positioning frame; the method is characterized in that:

an extension section is arranged in the bracket, and a sealed cavity is formed between the extension section and the inner wall of the bracket; a transverse bearing seat is fixedly arranged outside the bracket, and an injection member which can penetrate into the bracket and is communicated with the sealing cavity is fixedly arranged on the bearing seat;

the injection component comprises a shell, the shell is arranged on the bearing seat, and the bracket is provided with a slot for the shell to extend into; a transverse stroke groove is formed in the shell, a push rod is arranged in the stroke groove, inner peripheral threads are formed in the inner wall of the stroke groove, a butting ring is arranged on the outer periphery of the push rod, outer peripheral threads are formed on the outer periphery of the butting ring, and the butting ring is in threaded fit with the stroke groove;

a transverse injection channel is arranged in the push rod, a longitudinal through hole is also arranged in the push rod, and the through hole is positioned on the left side of the butting ring; the left side of the push rod is provided with an inclined first extending surface, the position of the stroke groove, which corresponds to the first extending surface, is provided with a second extending surface, and a space is formed between the first extending surface and the second extending surface to form an extending channel; a transverse leading-out channel is arranged on the left side of the shell and is communicated with the sealing cavity;

injecting a heat preservation medium into the injection channel, and injecting the heat preservation medium into the sealing cavity after sequentially passing through the via hole, the extension channel and the lead-out channel;

an inner groove is formed in the center of the left side of the push rod, a sealing ball is arranged in the inner groove and can be just abutted against the leading-out channel, and the leading-out channel is cut off.

The further setting is that: a screw is screwed in the shell, extends into the stroke groove and can be abutted against the right side of the abutting ring, so that the purpose of limiting the push rod is achieved.

The further setting is that: the right end of the push rod extends out of the stroke groove, the force application part is fixedly arranged at the right end of the push rod, and the section width of the force application part is larger than that of the stroke groove, so that a user can conveniently hold the push rod by hands.

The utility model has the beneficial effects that:

1. according to the utility model, the extension section is arranged, the seal cavity is formed by matching with the inner wall of the support, and the heat-insulating medium is stored in the seal cavity, so that the purpose of heat insulation is achieved, the condition that the opening and closing are difficult due to the icing of residual water is avoided, the water-cooling type heat-insulating support can be normally used at night in cold winter, and convenience is brought to the use of a user. And the injection of the heat-insulating medium is realized by arranging the open groove and the injection member, which is very convenient.

2. The injection component comprises a stroke groove and a push rod, wherein the periphery of the push rod is provided with a butting ring, and the transverse position of the push rod is adjusted through the threaded matching of the butting ring and the stroke groove. And through setting up the passageway of infusing, via hole, extension passageway and deriving the passageway, will keep warm the medium and effectively pour into the sealed intracavity. In addition, an inner groove is formed in the center of the left side of the push rod, a sealing ball is arranged in the inner groove, and the guide-out channel is cut off through the sealing ball. The push rod can not only achieve the purpose of conveying heat preservation media, but also achieve the purpose of pushing the sealing ball to cut off the guide channel, has a reasonable structure and ingenuity, and can effectively realize the control of communication/cutting-off in the injection process.

3. The screw is screwed into the shell and extends into the stroke groove and can be abutted against the right side of the abutting ring, so that the purposes of limiting the push rod and preventing the push rod from falling out of the stroke groove are achieved.

4. In the utility model, the force application part is arranged at the right end part of the push rod, so that the purpose of limiting the push rod can be achieved, the hand of a user can hold the push rod to apply force, and the actual experience is better.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 2;

fig. 4 is an enlarged view of a portion C in fig. 2.

In the figure: 11. a valve body; 12. a flow channel; 13. a support; 14. a valve stem; 15. a valve flap; 16. a membrane; 17. a cylinder; 18. a piston; 19. an air faucet; 20. a compression spring; 21. a positioning frame; 22. a positioner; 31. an extension section; 32. sealing the cavity; 41. a bearing seat; 51. a housing; 52. a stroke slot; 53. a push rod; 531. a butting ring; 61. grooving; 71. an injection channel; 72. conducting holes; 731. a first extended surface; 732. a second extended surface; 73. an extension channel; 74. a lead-out channel; 81. a sealing ball; 91. a screw; 92. a force application part.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, the flow-regulating positioning pneumatic diaphragm valve comprises a valve body 11, a flow passage 12 is formed in the valve body 11, a support 13 is arranged at the upper end of the valve body 11, a valve rod 14 longitudinally penetrates through the valve body 11, a valve clack 15 capable of penetrating into the flow passage 12 is fixedly arranged at the lower end of the valve rod 14, a diaphragm 16 is arranged at the lower end of the valve clack 15, a cylinder 17 connected with the valve rod 14 for providing driving force for the valve rod 14 is arranged at the upper end of the support 13, a piston 18, an air nozzle 19 and a compression spring 20 are arranged in the cylinder 17, a positioning frame 21 is arranged at the upper end of the cylinder 17, and a positioner 22 is arranged on the positioning frame 21.

An extension section 31 is arranged in the bracket 13, and a sealed cavity 32 is formed between the extension section 31 and the inner wall of the bracket 13; a transverse bearing seat 41 is fixedly arranged outside the bracket 13, and an injection member which can penetrate into the bracket 13 and is communicated with the sealed cavity 32 is fixedly arranged on the bearing seat 41;

the injection component comprises a shell 51, the shell 51 is arranged on the bearing seat 41, and the bracket 13 is provided with a slot 61 for the shell 51 to extend into; a transverse stroke groove 52 is formed in the shell 51, a push rod 53 is arranged in the stroke groove 52, inner peripheral threads are formed in the inner wall of the stroke groove 52, a butting ring 531 is arranged on the outer periphery of the push rod 53, outer peripheral threads are formed on the outer periphery of the butting ring 531, and thread matching of the butting ring 531 and the stroke groove 52 is formed;

a transverse injection channel 71 is arranged in the push rod 53, a longitudinal through hole 72 is also arranged in the push rod 53, and the through hole 72 is positioned on the left side of the abutting ring 531; a first inclined extension surface 731 is arranged at the left side of the push rod 53, a second extension surface 732 is arranged at the position of the stroke slot 52 corresponding to the first extension surface 731, and an extension channel 73 is formed at a distance between the first extension surface 731 and the second extension surface 732; a transverse leading-out channel 74 is formed at the left side of the shell 51, and the leading-out channel 74 is communicated with the sealing cavity 32;

injecting a heat preservation medium into the injection channel 71, sequentially passing through the via hole 72, the extension channel 73 and the lead-out channel 74, and then injecting into the sealed cavity 32;

an inner groove is formed in the center of the left side of the push rod 53, a sealing ball 81 is arranged in the inner groove, the sealing ball 81 can just abut against the guiding-out passage 74, and the guiding-out passage 74 is cut off.

Wherein, a screw 91 is screwed in the shell 51, the screw 91 extends into the travel groove 52 and can be abutted against the right side of the abutting ring 531, thereby achieving the purpose of limiting the push rod 53.

The right end of the push rod 53 extends out of the stroke groove 52, the right end of the push rod 53 is fixedly provided with a force application part 92, and the cross section width of the force application part 92 is larger than that of the stroke groove 52, so that the user can conveniently hold the hand.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A flow adjusting and positioning pneumatic diaphragm valve comprises a valve body (11), wherein a flow channel (12) is formed in the valve body (11), a support (13) is arranged at the upper end of the valve body (11), a valve rod (14) longitudinally penetrates through the valve body (11), a valve flap (15) capable of penetrating into the flow channel (12) is fixedly arranged at the lower end of the valve rod (14), a diaphragm (16) is arranged at the lower end of the valve flap (15), an air cylinder (17) which is connected with the valve rod (14) to provide driving force for the valve rod (14) is arranged at the upper end of the support (13), a piston (18), an air nozzle (19) and a compression spring (20) are arranged in the air cylinder (17), a positioning frame (21) is arranged at the upper end of the air cylinder (17), and a positioner (22) is arranged on the positioning frame (21); the method is characterized in that:

an extension section (31) is arranged in the bracket (13), and a sealed cavity (32) is formed between the extension section (31) and the inner wall of the bracket (13); a transverse bearing seat (41) is fixedly arranged outside the bracket (13), and an injection component which can penetrate into the bracket (13) and is communicated with the sealing cavity (32) is fixedly arranged on the bearing seat (41);

the injection component comprises a shell (51), the shell (51) is arranged on the bearing seat (41), and a groove (61) for the shell (51) to extend into is formed in the support (13); a transverse stroke groove (52) is formed in the shell (51), a push rod (53) is arranged in the stroke groove (52), inner peripheral threads are formed in the inner wall of the stroke groove (52), a butting ring (531) is arranged on the outer periphery of the push rod (53), outer peripheral threads are formed on the outer periphery of the butting ring (531), and the butting ring (531) is in threaded fit with the stroke groove (52);

a transverse injection channel (71) is arranged in the push rod (53), a longitudinal through hole (72) is also arranged in the push rod (53), and the through hole (72) is positioned on the left side of the abutting ring (531); a first inclined extension surface (731) is arranged on the left side of the push rod (53), a second extension surface (732) is arranged at the position, corresponding to the first extension surface (731), of the stroke groove (52), and an extension channel (73) is formed between the first extension surface (731) and the second extension surface (732) at a certain interval; a transverse leading-out channel (74) is arranged at the left side of the shell (51), and the leading-out channel (74) is communicated with the sealing cavity (32);

the injection channel (71) is provided with a heat preservation medium, and the injection channel (71) is communicated with the sealed cavity (32) through the through hole (72), the extension channel (73) and the guide channel (74) in sequence;

an inner groove is formed in the center of the left side of the push rod (53), a sealing ball (81) is arranged in the inner groove, and the sealing ball (81) can be just abutted against the guide-out channel (74) to cut off the guide-out channel (74).

2. A flow regulating positioning pneumatic diaphragm valve of claim 1 in which: a screw (91) is screwed into the shell (51), and the screw (91) extends into the stroke groove (52) and can be abutted against the right side of the abutting ring (531), so that the purpose of limiting the push rod (53) is achieved.

3. A flow regulating positioning pneumatic diaphragm valve of claim 1 in which: the right end of the push rod (53) extends out of the stroke groove (52), a force application part (92) is fixedly arranged at the right end of the push rod (53), and the cross section width of the force application part (92) is larger than that of the stroke groove (52) so as to be convenient for a user to hold by hands.