CN212537021U

CN212537021U - Pneumatic cutoff corrugated pipe valve

Info

Publication number: CN212537021U
Application number: CN202020554750.4U
Authority: CN
Inventors: 洪金水
Original assignee: Zhejiang Dayang Valve Co ltd
Current assignee: Zhejiang Dayang Valve Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-02-12
Anticipated expiration: 2030-04-15

Abstract

The utility model discloses a pneumatic bellows valve that cuts off, including the bellows, one side of bellows is provided with the top cap, top and bottom that the top cap is close to bellows one side all are provided with a fixing bolt, the inside intermediate position department that is close to top cap one side of bellows is provided with the pneumatic valve, one side that the top cap was kept away from to the pneumatic valve is provided with the valve rod, one side that the pneumatic valve was kept away from to the valve rod is provided with the valve gap. The utility model discloses the device passes through splint, fixed block, second fixing bolt and third fixing bolt's mutually supporting, can seal up the junction, can also carry out the centre gripping to external water pipe and fix, can effectually prevent that the condition of infiltration from appearing in the kneck, through the mutually supporting of pull rod, fixture block, threaded rod, draw-in groove, second mounting panel, dog, shelves pole and nut, can carry out block and fixed to the nut in the threaded rod outside, prevent that the nut from appearing coming off or the not hard up problem.

Description

Pneumatic cutoff corrugated pipe valve

Technical Field

The utility model relates to a pneumatic bellows valve technical field that cuts off specifically is a pneumatic bellows valve that cuts off.

Background

The corrugated pipe is used as a valve of a valve rod sealing element, is commonly used in occasions with strict requirements on valve rod sealing, such as high vacuum occasions and nuclear industry, and can replace a stuffing box on a common valve or be used together with the stuffing box, so that the valve rod part has no leakage, radioactive substances or valuable substances are prevented from leaking outwards, or high vacuum is kept;

the existing pneumatic cut-off bellows valve still has the following defects: 1. in the prior art, a joint is usually sealed by a sealed rubber ring, but the sealing effect is poor, the clamping and fixing effect on an external water pipe is not good, and the water seepage at the joint cannot be effectively prevented; 2. the nut on the outer side of the bolt at the joint cannot be clamped and fixed, and the nut can fall off or loosen; 3. the effect of dismantling the device is relatively poor, and present when the bellows has the damage, need carry out the physics cutting to bellows and valve gap and just can change the bellows, and this kind of mode is not convenient for operating personnel maintains just.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic bellows valve that cuts off, in order to solve and to propose current pneumatic bellows valve that cuts off among the above-mentioned background art, it is relatively poor to carry out the effect sealed to the junction, it is also not good to carry out the fixed effect of centre gripping to external water pipe, the unable effectual condition that prevents the kneck infiltration from appearing, and can't carry out the block and fix to the nut in the junction bolt outside, the nut can appear the not hard up problem that drops or, it is relatively poor to carry out the effect of dismantling the device, current when the bellows is bad, need carry out the physics cutting to bellows and valve gap and just can change the bellows, this kind of mode is just not convenient for operating personnel to carry out the problem of maintaining.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic bellows valve that cuts off, includes the bellows, one side of bellows is provided with the top cap, top and bottom that the top cap is close to bellows one side all are provided with first fixing bolt, the inside intermediate position department that is close to top cap one side of bellows is provided with pneumatic valve, one side that the top cap was kept away from to pneumatic valve is provided with the valve rod, one side that the pneumatic valve was kept away from to the valve rod is provided with the valve gap, the top of bellows one side is provided with the water inlet, the bottom of bellows one side is provided with the delivery port, the valve gap and water inlet and delivery port mutually adapted, one side of water inlet and delivery port all is provided with first mounting panel, one side of first mounting panel articulates there is the centre gripping subassembly, the top of water inlet and the bottom of delivery port all are provided with, and the pull rod extends to the outside of threaded rod, the top of pull rod is provided with the second mounting panel, the both sides of second mounting panel bottom are provided with the fixture block, the both sides at the inside top of threaded rod are provided with the draw-in groove, and draw-in groove and the mutual adaptation of fixture block, the both sides of second mounting panel bottom articulate there is the shelves pole, and the outside that the shelves pole extends to the threaded rod, the inside bilateral symmetry of threaded rod is provided with two sets of dogs, and dog and the mutual adaptation of shelves pole, the nut is established to the outside cover of threaded rod.

Preferably, the centre gripping subassembly includes splint, fixed block, second fixing bolt and third fixing bolt, splint are located one side of first mounting panel, splint are provided with two sets ofly, and two sets of threaded rods are articulated each other, and are two sets of the outside of splint evenly is provided with third fixing bolt, and third fixing bolt runs through the inside of splint, one side of splint sets up the fixed block, the inside cover of fixed block is equipped with second fixing bolt.

Preferably, the inner side of the third fixing bolt is provided with a clamping plate, and the inner side of the clamping plate is provided with anti-skid grains.

Preferably, the inside of splint evenly is provided with the internal thread hole, and the internal thread hole and the mutual adaptation of third fixing bolt.

Preferably, a protecting sleeve is arranged on the outer side of the third fixing bolt and fixedly connected with the threaded rod.

Preferably, the flange is internally provided with a through hole, and the through hole is matched with the threaded rod.

Compared with the prior art, the beneficial effects of the utility model are that: the pneumatic cutoff corrugated pipe valve can seal the joint, can also clamp and fix an external water pipe, can also fix a nut outside a fixed bolt to prevent falling off, and can also detach and conveniently maintain the device;

1. the clamping plate, the fixing block, the second fixing bolt and the third fixing bolt are matched with each other, so that the joint can be sealed, an external water pipe can be clamped and fixed, and the water seepage at the joint can be effectively prevented;

2. through the mutual matching of the pull rod, the clamping block, the threaded rod, the clamping groove, the second mounting plate, the stop block, the stop rod and the nut, the nut on the outer side of the threaded rod can be clamped and fixed, and the problem that the nut falls off or is loosened is solved;

3. through mutually supporting of bellows, first fixing bolt and top cap, can dismantle the top cap, and current when the bellows has the damage, need carry out the physics cutting to bellows and valve gap and just can change the bellows, but this kind of mode of the device just is convenient for operating personnel and maintains.

Drawings

Fig. 1 is a front sectional view of the present invention;

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

fig. 3 is an enlarged schematic view of the internal structure of the threaded rod of the present invention.

In the figure: 1. a bellows; 2. a pneumatic valve; 3. a valve stem; 4. a first mounting plate; 5. a water inlet; 6. A splint; 7. a card slot; 8. a pull rod; 9. a stopper; 10. a gear lever; 11. a valve cover; 12. a second mounting plate; 13. a nut; 14. a clamping block; 15. a water outlet; 16. a threaded rod; 17. a flange; 18. a top cover; 19. a first fixing bolt; 20. a fixed block; 21. a second fixing bolt; 22. and a third fixing bolt.

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. 1-3, the present invention provides an embodiment: a pneumatic cutoff corrugated pipe valve comprises a corrugated pipe 1, a top cover 18 is arranged on one side of the corrugated pipe 1, first fixing bolts 19 are arranged at the top and the bottom of one side, close to the corrugated pipe 1, of the top cover 18, a pneumatic valve 2 is arranged at the middle position of one side, close to the top cover 18, of the corrugated pipe 1, a valve rod 3 is arranged on one side, far away from the top cover 18, of the pneumatic valve 2, a valve cover 11 is arranged on one side, far away from the pneumatic valve 2, of the valve rod 3, a water inlet 5 is arranged at the top of one side of the corrugated pipe 1, a water outlet 15 is arranged at the bottom of one side of the corrugated pipe 1, the valve cover 11 is matched with the water inlet 5 and the water outlet 15, a first mounting plate 4 is arranged on one side of the, the top of water inlet 5 and the bottom of delivery port 15 all are provided with flange 17, the inside both sides cover of flange 17 is equipped with threaded rod 16, the inside top of threaded rod 16 is provided with pull rod 8, and pull rod 8 extends to the outside of threaded rod 16, the top of pull rod 8 is provided with second mounting panel 12, the both sides of second mounting panel 12 bottom are provided with fixture block 14, can carry out block and fixed to the nut 13 in the threaded rod 16 outside, prevent that nut 13 from appearing droing or the not hard up problem, the both sides at the inside top of threaded rod 16 are provided with draw-in groove 7, and draw-in groove 7 and the mutual adaptation of fixture block 14, the both sides of second mounting panel 12 bottom articulate there is shelves pole 10, and shelves pole 10 extends to the outside of threaded rod 16, the inside bilateral symmetry of threaded rod 16 is provided with two sets of dog 9, and dog 9 and the mutual.

Further, the centre gripping subassembly includes splint 6, fixed block 20, second fixing bolt 21 and third fixing bolt 22, splint 6 is located one side of first mounting panel 4, splint 6 is provided with two sets ofly, and two sets of threaded rods 16 are articulated each other, and the outside of two sets of splint 6 evenly is provided with third fixing bolt 22, and third fixing bolt 22 runs through the inside of splint 6, and one side of splint 6 sets up fixed block 20, and the inside cover of fixed block 20 is equipped with second fixing bolt 21, prevents to ooze the water.

Further, the inner side of the third fixing bolt 22 is provided with a clamping plate, and the inner side of the clamping plate is provided with anti-slip lines, so that the fixing is facilitated.

Further, the inside of splint 6 evenly is provided with the internal thread hole, and the internal thread hole and the mutual adaptation of third fixing bolt 22, the rotation of being convenient for.

Further, a protecting sleeve is arranged on the outer side of the third fixing bolt 22, and the protecting sleeve is fixedly connected with the threaded rod 16 to prevent rusting.

Further, the flange 17 is provided with a through hole inside, and the through hole and the threaded rod 16 are mutually matched, so that the insertion is convenient.

The working principle is as follows: when the device is used, firstly, the device is placed at a specified position, then the water inlet 5 and the water outlet 15 are mutually connected with an external water pipe, then the threaded rod 16 is inserted into the flange 17, then the nut 13 is sleeved on the outer side of the threaded rod 16 to fix the external water pipe, then the second mounting plate 12 is pushed, the pull rod 8 is driven by the second mounting plate 12 to eject the stop lever 10, the nut 13 is fixed, and the nut 13 is prevented from falling off;

after the fixing is finished, the external water receiving pipe is wrapped by rotating the clamping plate 6, then the second fixing bolt 21 is inserted into the fixing block 20 to fix the clamping plate 6, and then the third fixing bolt 22 is rotated to fix the fixing block;

when maintenance is required, the first fixing bolt 19 is removed by rotating the first fixing bolt 19, and then the top cover 18 is opened to perform maintenance on the inside.

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 shut-off bellows valve comprising a bellows (1), characterized in that: one side of bellows (1) is provided with top cap (18), top cap (18) are close to the top and the bottom of bellows (1) one side and all are provided with first fixing bolt (19), bellows (1) inside intermediate position department that is close to top cap (18) one side is provided with pneumatic valve (2), one side that top cap (18) were kept away from in pneumatic valve (2) is provided with valve rod (3), one side that pneumatic valve (2) were kept away from in valve rod (3) is provided with valve gap (11), the top of bellows (1) one side is provided with water inlet (5), the bottom of bellows (1) one side is provided with delivery port (15), valve gap (11) and water inlet (5) and delivery port (15) mutual adaptation, one side of water inlet (5) and delivery port (15) all is provided with first mounting panel (4), one side of first mounting panel (4) articulates there is the centre gripping subassembly, the top of water inlet (5) and the bottom of delivery port (15) all are provided with flange (17), the inside both sides cover of flange (17) is equipped with threaded rod (16), the inside top of threaded rod (16) is provided with pull rod (8), and pull rod (8) extend to the outside of threaded rod (16), the top of pull rod (8) is provided with second mounting panel (12), the both sides of second mounting panel (12) bottom are provided with fixture block (14), the both sides of the inside top of threaded rod (16) are provided with draw-in groove (7), and draw-in groove (7) and fixture block (14) are mutual adaptation, the both sides of second mounting panel (12) bottom are articulated to have shelves pole (10), and shelves pole (10) extend to the outside of threaded rod (16), the inside bilateral symmetry of threaded rod (16) is provided with two sets of dog (9), and dog (9) and shelves pole (10) mutual adaptation, the outer side of the threaded rod (16) is sleeved with a nut (13).

2. A pneumatic shut-off bellows valve according to claim 1, wherein: the centre gripping subassembly includes splint (6), fixed block (20), second fixing bolt (21) and third fixing bolt (22), splint (6) are located one side of first mounting panel (4), splint (6) are provided with two sets ofly, and two sets of threaded rod (16) are articulated each other, and are two sets of the outside of splint (6) evenly is provided with third fixing bolt (22), and third fixing bolt (22) runs through the inside of splint (6), one side of splint (6) sets up fixed block (20), the inside cover of fixed block (20) is equipped with second fixing bolt (21).

3. A pneumatic shut-off bellows valve according to claim 2, wherein: the inner side of the third fixing bolt (22) is provided with a clamping plate, and the inner side of the clamping plate is provided with anti-skid grains.

4. A pneumatic shut-off bellows valve according to claim 2, wherein: the inside of splint (6) evenly is provided with the internal thread hole, and the internal thread hole and third fixing bolt (22) mutual adaptation.

5. A pneumatic shut-off bellows valve according to claim 2, wherein: and a protective sleeve is arranged on the outer side of the third fixing bolt (22) and is fixedly connected with the threaded rod (16).

6. A pneumatic shut-off bellows valve according to claim 1, wherein: the inside of flange (17) is provided with the through-hole, and through-hole and threaded rod (16) mutual adaptation.