CN220891207U - Air bag type back pressure valve - Google Patents

Abstract

The utility model discloses an air bag type back pressure valve, which comprises a valve body and two connecting flanges, wherein the inner side of the valve body is provided with two air bags, the outer side of the connecting flanges is welded with a plurality of inserting blocks, the outer side of the valve body is welded with a plurality of fixing blocks, the inserting blocks slide to penetrate through the fixing blocks, a clamping groove is formed in one side of each inserting block, the inner side of each clamping groove is welded with two clamping blocks, the outer side of the valve body is sleeved with an outer movable sleeve, the outer side of the movable sleeve is welded with a plurality of clamping plates, the clamping plates penetrate through the space between the two clamping blocks, and the outer side of the movable sleeve is provided with a jacking piece which can be abutted against the valve body. According to the utility model, the movable sleeve is moved to drive the clamping plate between the two clamping blocks, and then the movable sleeve is rotated to drive the clamping plate to be separated from the clamping groove, so that the inserting block and the fixed block can be separated at the moment, and the connecting flange can be separated from the valve body at the moment, so that the connecting flange is convenient to disassemble and assemble, and the maintenance efficiency of the valve body is improved.

Description

Air bag type back pressure valve

Technical Field

The utility model relates to the technical field of back pressure valves, in particular to an air bag type back pressure valve.

Background

The back pressure valve can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.

The back pressure valve both sides need set up detachable flange and are used for connecting the pipeline, when the inside trouble that breaks down of valve body, also can pull down the both sides flange and maintain the valve body inside, however at present the flange adopts a plurality of bolts to connect fixedly more, leads to comparatively inconvenient when dismantling the installation. To this end we propose an air-bag back pressure valve.

Disclosure of utility model

The present utility model is directed to an air-bag type back pressure valve, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the air bag type back pressure valve comprises a valve body and two connecting flanges, wherein two air bags are arranged on the inner side of the valve body, a plurality of inserting blocks are welded on the outer side of each connecting flange, a plurality of fixing blocks are welded on the outer side of the valve body, and the inserting blocks penetrate through the fixing blocks in a sliding mode;

the clamping groove is formed in one side of the inserting block, two clamping blocks are welded on the inner side of the clamping groove, an outer movable sleeve is sleeved on the outer side of the valve body, a plurality of clamping plates are welded on the outer side of the movable sleeve, the clamping plates penetrate through the space between the two clamping blocks, and a jacking piece capable of abutting against the valve body is arranged on the outer side of the movable sleeve.

Preferably, the air inlet pipes are arranged at the positions, corresponding to the air bags, on the outer side of the valve body.

Preferably, the distance between two adjacent clamping blocks is matched with the width dimension of the clamping plate.

Preferably, the movable sleeve can rotate outside the valve body, and the movable sleeve can slide outside the valve body.

Preferably, the jack-up member comprises at least one threaded rod which is screwed on one side of the movable sleeve.

Preferably, one end of the threaded rod is fixedly provided with a knob.

Compared with the prior art, the utility model has the beneficial effects that:

1. This gasbag formula backpressure valve drives the threaded rod through rotating the knob and rotates for the threaded rod moves to the direction of keeping away from flange, later moves to the direction that is close to flange through promoting movable sleeve, makes the cardboard break away from between two fixture blocks in the draw-in groove, rotates movable sleeve this moment, makes the cardboard break away from the draw-in groove inboard, later to flange to the direction pulling of keeping away from the valve body, because the cardboard does not pass in the draw-in groove, consequently can separate inserted block and fixed block, thereby take off flange, accomplished dismantlement work, it is comparatively convenient to dismantle, be convenient for maintain work such as to the valve body is inside.

2. This gasbag formula backpressure valve, control flange moves to the direction that is close to the valve body, and drive the inserted block and pass in the fixed block, rotate the angle of movable sleeve afterwards, make the cardboard get into the draw-in groove in, it drives the cardboard to get into between two fixture blocks to remove movable sleeve, begin to twist the knob this moment, drive the threaded rod and rotate, until the threaded rod supports valve body one side, continue to rotate, can stimulate the cardboard and drive the inserted block and flange to be close to the direction motion of valve body, guarantee the leakproofness of connection, and it only need twist the knob and can accomplish the installation work, it is comparatively convenient to use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

fig. 3 is a schematic view of the bottom structure of the insert block of the present utility model.

In the figure: 1. a valve body; 2. an air bag; 3. a connecting flange; 4. inserting blocks; 5. a fixed block; 6. a clamping groove; 7. a clamping block; 8. a movable sleeve; 9. a clamping plate; 10. a threaded rod; 11. and (5) a knob.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-3, the utility model provides an air bag type back pressure valve, which comprises a valve body 1 and two connecting flanges 3, wherein two air bags 2 are arranged on the inner side of the valve body 1, a plurality of inserting blocks 4 are welded on the outer side of the connecting flanges 3, a plurality of fixing blocks 5 are welded on the outer side of the valve body 1, and the inserting blocks 4 penetrate through the fixing blocks 5 in a sliding manner;

The draw-in groove 6 has been seted up to inserted block 4 one side, and draw-in groove 6 inboard welding has two fixture blocks 7, and valve body 1 outside cover is equipped with outside movable sleeve 8, and the welding of movable sleeve 8 outside has a plurality of cardboard 9, and cardboard 9 passes between two fixture blocks 7, and the movable sleeve 8 outside is provided with the jack-up piece that can contradict with valve body 1.

Specifically, drive between two fixture blocks 7 of cardboard 9 through removing movable sleeve 8, drive cardboard 9 through rotating movable sleeve 8 later and break away from draw-in groove 6 in, can separate inserted block 4 and fixed block 5 this moment, and separation between flange 3 and valve body 1 this moment, its dismouting flange 3 of being convenient for has promoted the maintenance efficiency to valve body 1.

Wherein: the air inlet pipes are arranged at the positions, corresponding to the air bags 2, on the outer side of the valve body 1, and the shape of the air bags 2 can be changed by exhausting or exhausting air into the air bags 2, so that the medium flow of the inner cavity of the valve body 1 can be controlled.

Wherein: the distance between two adjacent clamping blocks 7 is matched with the width of the clamping plate 9, and the clamping plate 9 can be just clamped at the position between the two clamping blocks 7.

Wherein: the movable sleeve 8 can rotate outside the valve body 1, and the movable sleeve 8 can slide outside the valve body 1.

Wherein: the jack-up piece includes at least one threaded rod 10, and threaded rod 10 threaded connection is in movable sleeve 8 one side, and threaded rod 10 one end fixed mounting has knob 11, can change the position of threaded rod 10 through rotating knob 11.

Working principle: the utility model relates to an air bag type back pressure valve, when in disassembly, a knob 11 is rotated to drive a threaded rod 10 to rotate, so that the threaded rod 10 moves in a direction away from a connecting flange 3, then a movable sleeve 8 is pushed to move in a direction close to the connecting flange 3, a clamping plate 9 is separated from a position between two clamping blocks 7 in a clamping groove 6, at the moment, the movable sleeve 8 is rotated, so that the clamping plate 9 is separated from the inner side of the clamping groove 6, and then the clamping plate 9 is pulled in a direction away from a valve body 1 towards the connecting flange 3, and because the clamping plate 9 does not pass through the clamping groove 6, an inserting block 4 can be separated from a fixed block 5, so that the connecting flange 3 is taken down, and the disassembly work is completed;

During installation, the connecting flange 3 is controlled to move towards the direction close to the valve body 1, the inserting block 4 is driven to pass through the fixed block 5, then the angle of the movable sleeve 8 is rotated, the clamping plate 9 is enabled to enter the clamping groove 6, the movable sleeve 8 is moved to drive the clamping plate 9 to enter between the two clamping blocks 7, at the moment, the knob 11 is started to be screwed, the threaded rod 10 is driven to rotate until the threaded rod 10 abuts against one side of the valve body 1, the threaded rod 10 continues to rotate, and the clamping plate 9 can be pulled to drive the inserting block 4 and the connecting flange 3 to move towards the direction close to the valve body 1, so that the tightness of connection is ensured.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides an gasbag formula backpressure valve, includes valve body (1) and two flange (3), its characterized in that: two air bags (2) are arranged on the inner side of the valve body (1), a plurality of inserting blocks (4) are welded on the outer side of the connecting flange (3), a plurality of fixing blocks (5) are welded on the outer side of the valve body (1), and the inserting blocks (4) penetrate through the fixing blocks (5) in a sliding mode;

Clamping grooves (6) are formed in one side of the inserting block (4), two clamping blocks (7) are welded on the inner side of the clamping grooves (6), an outer movable sleeve (8) is sleeved on the outer side of the valve body (1), a plurality of clamping plates (9) are welded on the outer side of the movable sleeve (8), the clamping plates (9) penetrate between the two clamping blocks (7), and jacking pieces capable of abutting against the valve body (1) are arranged on the outer side of the movable sleeve (8).

2. An air bag back pressure valve according to claim 1, wherein: and the outer side of the valve body (1) and the position corresponding to the air bag (2) are respectively provided with an air inlet pipe.

3. An air bag back pressure valve according to claim 1, wherein: the distance between two adjacent clamping blocks (7) is matched with the width dimension of the clamping plate (9).

4. An air bag back pressure valve according to claim 1, wherein: the movable sleeve (8) can rotate outside the valve body (1), and the movable sleeve (8) can slide outside the valve body (1).

5. An air bag back pressure valve according to claim 1, wherein: the jacking piece comprises at least one threaded rod (10), and the threaded rod (10) is connected to one side of the movable sleeve (8) in a threaded mode.

6. An air bag back pressure valve according to claim 5, wherein: one end of the threaded rod (10) is fixedly provided with a knob (11).