CN210106664U

CN210106664U - Pneumatic diaphragm valve for controlling gas flow

Info

Publication number: CN210106664U
Application number: CN201920422050.7U
Authority: CN
Inventors: 王汉清
Original assignee: Jiangsu Valubang Semiconductor Materials Technology Co Ltd
Current assignee: Jiangsu Valubang Semiconductor Materials Technology Co Ltd
Priority date: 2019-03-30
Filing date: 2019-03-30
Publication date: 2020-02-21
Anticipated expiration: 2029-03-30

Abstract

The utility model discloses a pneumatic diaphragm valve for control gas flow, including the valve body, the intermediate position department of the inside bottom of valve body is provided with the lug, and the top of valve body is provided with the diaphragm, and the outside of diaphragm is provided with fixed cover, and the top of diaphragm is provided with the fixed block, and the intermediate position department of fixed block bottom is provided with the recess, and the inside of recess is provided with the pressure piece, and the top of fixed block is fixed with the fixed column. The utility model discloses a fixed block that sets up, under the effect of screw rod, make the diaphragm, can dismantle the connection each other between fixed block and the valve body, the fixed block is dismantled to the accessible, realize the maintenance to diaphragm and valve body, and through the fixed cover that sets up, the stopper is through wearing into fixed cover, it is fixed with fixed block and valve body to make the diaphragm, make the fixed effect of diaphragm better, thereby better cooperation valve rod extrudees downwards, make the separation effect of diaphragm better, the operating effect who opens and close is better inside the messenger valve body, use compressed air as power, the realization is to the regulation of fluid medium flow in the process line.

Description

Pneumatic diaphragm valve for controlling gas flow

Technical Field

The utility model relates to a pneumatic diaphragm valve technical field specifically is a control gas flow is with pneumatic diaphragm valve.

Background

The pneumatic diaphragm valve is a special type of cut-off valve, and its opening and closing member is a diaphragm made of soft material, and can separate the inner cavity of valve body from the inner cavity of valve cover and driving component, so that it is called pneumatic diaphragm valve.

And the diaphragm inside the diaphragm valve of current may cause the damage after long-term use, looks over when maintaining when needs to the diaphragm, and the diaphragm valve can't be opened, and the diaphragm inside of current diaphragm valve lacks fixed function, makes the separation effect of diaphragm not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the diaphragm valve cannot be checked and maintained and the diaphragm lacks a fixing function, the pneumatic diaphragm valve for controlling the gas flow is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a pneumatic diaphragm valve for controlling gas flow comprises a valve body, wherein a convex block is arranged in the middle of the bottom end in the valve body, a diaphragm is arranged above the valve body, a fixed sleeve is arranged on the outer side of the diaphragm, a fixed block is arranged above the diaphragm, a groove is arranged in the middle of the bottom of the fixed block, a pressure block is arranged in the groove, a fixed column is fixed at the top of the fixed block, a valve rod penetrating into the groove is connected with the internal thread of the fixed column, the bottom of the valve rod is fixedly connected with the pressure block, the top of the valve rod is positioned above the fixed column, the two sides of the top of the valve body and the fixed block are uniformly provided with corresponding first through holes, the both sides at fixed block top all evenly are provided with the multiunit screw rod, the inside of first through-hole all is provided with the internal thread, the bottom of fixed block evenly is provided with the multiunit stopper.

Preferably, the both sides at diaphragm and valve body top all are provided with stopper assorted second through-hole, the diaphragm can be dismantled with valve body and fixed block and be connected through mutually supporting of second through-hole and stopper down.

Preferably, the outside of screw rod is provided with the external screw thread with internal thread assorted, the fixed block passes through the mutually supporting of internal thread and external screw thread and can dismantle with the valve body and be connected.

Preferably, the number of the limiting blocks and the number of the second through holes are six.

Preferably, the top of the bump is in an arch structure.

Preferably, the diaphragm and the fixing sleeve are both in an annular structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a fixed block that sets up, under the effect of screw rod, make the diaphragm, can dismantle the connection each other between fixed block and the valve body, the fixed block is dismantled to the accessible, realize the maintenance to diaphragm and valve body, and through the fixed cover that sets up, the stopper is through wearing into fixed cover, it is fixed with fixed block and valve body to make the diaphragm, make the fixed effect of diaphragm better, thereby better cooperation valve rod extrudees downwards, make the separation effect of diaphragm better, the operating effect who opens and close is better inside the messenger valve body, use compressed air as power, the realization is to the regulation of fluid medium flow in the process line.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the operation structure of the present invention;

fig. 4 is a schematic view of a partial structure of the fixing block of the present invention;

fig. 5 is a schematic view of a partial structure of the separator of the present invention.

In the figure: 1. a valve body; 2. a bump; 3. a fixed block; 4. a groove; 5. a pressure block; 6. fixing a column; 7. a valve stem; 8. a limiting block; 9. a first through hole; 10. a diaphragm; 11. fixing a sleeve; 12. a second through hole; 13. a screw; 14. an internal thread; 15. and (4) external threads.

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. 1-5, a pneumatic diaphragm valve for controlling gas flow comprises a valve body 1, a bump 2 is disposed at the middle position of the bottom end inside the valve body 1, a diaphragm 10 is disposed above the valve body 1, a fixing sleeve 11 is disposed on the outer side of the diaphragm 10, a fixing block 3 is disposed above the diaphragm 10, a groove 4 is disposed at the middle position of the bottom of the fixing block 3, a pressure block 5 is disposed inside the groove 4, a fixing column 6 is fixed at the top of the fixing block 3, a valve rod 7 penetrating into the groove 4 is connected to the internal thread of the fixing column 6, the bottom of the valve rod 7 is fixedly connected to the pressure block 5, the top of the valve rod 7 is located above the fixing column 6, corresponding first through holes 9 are uniformly disposed at two sides of the tops of the valve body 1 and the fixing block 3, a plurality of screw rods 13 are uniformly disposed at two sides of the top, the bottom of fixed block 3 evenly is provided with multiunit stopper 8.

The utility model discloses a pressure piece 5 that sets up, it is downward through rotating valve rod 7, make valve rod 7 to 5 decurrent effort of pressure piece, make pressure piece 5 extrude diaphragm 10 to make diaphragm 10 and lug 2's the mutual contact closed, the messenger blocks that the effect of the inside gas circulation of valve body 1 is better.

Please refer to fig. 1, 2, 3 and 5, the diaphragm 10 and both sides of the top of the valve body 1 are provided with second through holes 12 matching with the limiting block 8, and the diaphragm 10 is detachably connected with the valve body 1 and the fixing block 3 by the mutual matching of the second through holes 12 and the limiting block 8.

The second through hole 12 that this kind of pneumatic diaphragm valve passed through diaphragm 10 and valve body 1 top setting makes stopper 8 play spacing effect to diaphragm 10, makes diaphragm 10's fixed effect better.

Please refer to fig. 1, 2 and 3, the outer side of the screw 13 is provided with an external thread 15 matching with the internal thread 14, and the fixed block 3 is detachably connected with the valve body 1 through the mutual matching of the internal thread 14 and the external thread 15.

The pneumatic diaphragm valve has the advantages that the external threads 15 arranged on the outer side of the screw 13 are matched with the internal threads 14, so that the mounting and dismounting operations of the fixing block 3, the diaphragm 10 and the valve body 1 are simpler.

Please refer to fig. 4 and 5, the number of the limiting blocks 8 and the second through holes 12 is six.

The number of the second through holes 12 of the pneumatic diaphragm valve passing through the limiting block 8 is six, so that the limiting block 8 has a better fixing effect on the diaphragm 10.

Referring to fig. 1, 2 and 3, the top of the bump 2 is in an arch shape.

This kind of pneumatic diaphragm valve makes valve rod 7 cause decurrent effort to diaphragm 10 through lug 2 that is domes, makes the better and 2 laminating of lugs of shape of diaphragm 10 bottom, makes the gaseous effect of diaphragm 10 separation better.

Referring to fig. 5, the diaphragm 10 and the fixing sleeve 11 are both in a ring structure.

This kind of pneumatic diaphragm valve is through diaphragm 10 and the fixed cover 11 that all are loop configuration, makes the better shape and size of laminating diaphragm 10 of fixed cover 11, and the effect that makes diaphragm 10 separation gas is better.

The working principle is as follows: when the valve is used, the left side and the right side of the valve body 1 are respectively connected with an inlet end and an outlet end of gas, the gas is introduced into the valve body 1, the gas enters from the right side of the valve body 1 and exits from the left side of the valve body 1, when the valve body 1 needs to be closed, the valve rod 7 is rotated to enable the valve rod 7 to move downwards, so that the valve rod 7 drives the pressure block 5 to move downwards, the pressure block 5 generates downward pressure on the diaphragm 10, then the pressure block 5 drives the diaphragm 10 to move downwards, the diaphragm 10 is deformed, then the diaphragm 10 is closed by being contacted with the convex block 2, the gas is blocked from flowing from the valve body 1, when the diaphragm valve needs to be overhauled and checked, the screw 13 is unscrewed, the fixing block 3, the diaphragm 10 and the valve body 1 are separated under the mutual matching of the external thread 15 and the internal thread 14, the diaphragm 10 is taken down from the fixing sleeve 11, then whether the, the pneumatic diaphragm valve has better use effect, and realizes the regulation of the flow of the fluid medium in the process pipeline by taking compressed air as power.

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

1. A pneumatic diaphragm valve for controlling gas flow, comprising a valve body (1), characterized in that: the improved valve is characterized in that a convex block (2) is arranged at the middle position of the bottom end inside the valve body (1), a diaphragm (10) is arranged above the valve body (1), a fixing sleeve (11) is arranged on the outer side of the diaphragm (10), a fixing block (3) is arranged above the diaphragm (10), a groove (4) is arranged at the middle position of the bottom of the fixing block (3), a pressure block (5) is arranged inside the groove (4), a fixing column (6) is fixed at the top of the fixing block (3), a valve rod (7) penetrating into the groove (4) is connected to the inner portion of the fixing column (6) in a threaded manner, the bottom of the valve rod (7) is fixedly connected with the pressure block (5), the top of the valve rod (7) is located above the fixing column (6), and corresponding first through holes (9) are uniformly formed in the two sides of the top of the valve body (, the both sides at fixed block (3) top all evenly are provided with multiunit screw rod (13), the inside of first through-hole (9) all is provided with internal thread (14), the bottom of fixed block (3) evenly is provided with multiunit stopper (8).

2. A pneumatic diaphragm valve for controlling the flow of gas according to claim 1, wherein: both sides at diaphragm (10) and valve body (1) top all are provided with stopper (8) assorted second through-hole (12), diaphragm (10) can dismantle with valve body (1) and fixed block (3) and be connected through mutually supporting of second through-hole (12) and stopper (8) down.

3. A pneumatic diaphragm valve for controlling the flow of gas according to claim 1, wherein: the outside of screw rod (13) is provided with and internal thread (14) assorted external screw thread (15), fixed block (3) can be dismantled with valve body (1) through mutually supporting of internal thread (14) and external screw thread (15) and be connected.

4. A pneumatic diaphragm valve for controlling the flow of gas according to claim 1, wherein: the number of the limiting blocks (8) and the number of the second through holes (12) are six.

5. A pneumatic diaphragm valve for controlling the flow of gas according to claim 1, wherein: the top of the lug (2) is of an arch structure.

6. A pneumatic diaphragm valve for controlling the flow of gas according to claim 1, wherein: the diaphragm (10) and the fixed sleeve (11) are both in annular structures.