CN210318538U

CN210318538U - Leakage-proof butterfly valve

Info

Publication number: CN210318538U
Application number: CN201921246551.0U
Authority: CN
Inventors: 黄维
Original assignee: Xinyu Shenxin Pump Co Ltd
Current assignee: Xinyu Shenxin Pump Co Ltd
Priority date: 2019-08-03
Filing date: 2019-08-03
Publication date: 2020-04-14
Anticipated expiration: 2029-08-03

Abstract

The utility model discloses a prevent butterfly valve of leakage, the water control valve comprises a valve body, the top of valve body is provided with the device storehouse, and the top in device storehouse is provided with the pull rod, the bottom of pull rod is connected with the pole of inflating, and the bottom fixedly connected with piston of the pole of inflating, the bottom of device storehouse inner wall is provided with second conical gear, and second conical gear's top is provided with the bearing frame, the top of bearing frame is connected with the inflater, one side of second conical gear is provided with first conical gear. The utility model discloses an inflater and the inflatable packer that set up cooperate, can form inseparable sealing washer between butterfly plate and valve body for water in the water pipe can not reveal when the butterfly valve is closed, greatly increased the availability factor of butterfly valve, avoided ordinary sealing washer to weaken its leakproofness because of long-time the use, the connecting rod that the butterfly plate bottom set up simultaneously can cooperate through slider and spout, can avoid the butterfly valve because receive the large-traffic impact of fluid.

Description

Leakage-proof butterfly valve

Technical Field

The utility model relates to the technical field of valves, specifically be a prevent butterfly valve of leakage.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, can be used for on-off control of low-pressure pipeline media, is a valve of which a closing part (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to open and close, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like.

But the current butterfly valve is because carry the more fluid that contains the particulate matter for a long time, and when receiving the large-traffic impact of fluid, the valve plate takes place to deflect even warp easily, thereby influence the sealing performance of butterfly valve, the sealing washer leakproofness that current butterfly plate outside set up is not good enough simultaneously, lead to using for a long time the back, sealing performance descends, the availability factor of butterfly valve has been influenced, lead to changing the sealing washer in a large number and wasted the resource, and current butterfly valve all is corresponding hard when rotatory butterfly plate, not only the time is wasted, work efficiency has still been influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the valve plate is easy to deflect and even deform when the existing butterfly valve is used for conveying fluid containing more particles for a long time and is impacted by the large flow of the fluid, the sealing performance of the butterfly valve is affected, and the leakage-proof butterfly valve is provided.

In order to achieve the above object, the utility model provides a following technical scheme: a leakage-proof butterfly valve comprises a valve body, wherein a device bin is arranged at the top of the valve body, a pull rod is arranged above the device bin, an inflating rod is connected to the bottom of the pull rod, a piston is fixedly connected to the bottom of the inflating rod, a second bevel gear is arranged at the bottom of the inner wall of the device bin, a bearing seat is arranged above the second bevel gear, an inflator is connected to the top of the bearing seat, a first bevel gear is arranged on one side of the second bevel gear and is rotatably connected with the first bevel gear, a worm gear rod penetrating to the outside of the device bin is connected to one side of the first bevel gear, an air duct penetrating to the inside of the valve body is connected to the bottom of the bearing seat, a valve rod is arranged inside the air duct, the valve rod is connected with the bearing seat, a butterfly plate is arranged at the bottom of the valve rod, an inflating pad is arranged on, the bottom of valve rod both sides all is provided with the gas outlet, the bottom of butterfly plate is provided with the connecting rod that runs through to the inflatable packer outside, and the bottom fixedly connected with slider of connecting rod.

Preferably, the pumping rod extends through the interior of the pump and the piston is located within the pump.

Preferably, one side of the inflator is fixedly connected with a connecting block, and the other side of the connecting block is fixedly connected with one side of the inner wall of the device bin.

Preferably, the bottom of the inner side of the butterfly valve is provided with a sliding groove, and the sliding groove is connected with the connecting rod in a sliding mode through a sliding block.

Preferably, the number of the connecting rods is two, the number of the sliding blocks is two, and the two groups of the connecting rods are respectively connected with the two groups of the sliding blocks.

Preferably, the diameter of the first bevel gear is twice the diameter of the second bevel gear.

Preferably, one side of the worm gear is provided with a handle, and the outer surface of the handle is provided with anti-skid lines.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an inflater and the inflatable packer that set up cooperate, can form inseparable sealing washer between butterfly plate and valve body, make the water in the water pipe can not reveal when the butterfly valve is closed, greatly increased the availability factor of butterfly valve, avoided ordinary sealing washer to weaken its leakproofness because of long-time the use, the connecting rod that the butterfly plate bottom set up simultaneously can cooperate through slider and spout, can enough avoid the butterfly valve because when receiving the large-traffic impact of fluid, the valve plate takes place the condition of deflecting even deformation easily, the rotatory butterfly plate that also can be more convenient and fast simultaneously, and the diameter of second conical gear is good at first conical gear's diameter, can be more laborsaving when rotatory worm wheel pole, make the more quick rotation of butterfly plate to the assigned position.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection between the butterfly plate and the valve rod of the present invention;

FIG. 3 is an enlarged view of the present invention A;

fig. 4 is an enlarged view of the present invention B.

In the figure: 1. a valve body; 2. a device bin; 3. a pull rod; 4. a worm gear; 5. a handle; 6. a pump rod; 7. a first bevel gear; 8. a second bevel gear; 9. an inflator; 10. a piston; 11. a bearing seat; 12. connecting blocks; 13. an air duct; 14. an air outlet; 15. a valve stem; 16. an inflatable cushion; 17. a butterfly plate; 18. a connecting rod; 19. a slider; 20. a chute.

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.

The inflator (model: GP-6535B) mentioned in the utility model can be ordered in the market or private.

Referring to fig. 1-4, a leakage-proof butterfly valve comprises a valve body 1, a device bin 2 is arranged at the top of the valve body 1, a pull rod 3 is arranged above the device bin 2, an inflating rod 6 is connected to the bottom of the pull rod 3, a piston 10 is fixedly connected to the bottom of the inflating rod 6, a second bevel gear 8 is arranged at the bottom of the inner wall of the device bin 2, a bearing seat 11 is arranged above the second bevel gear 8, an inflator 9 is connected to the top of the bearing seat 11, a first bevel gear 7 is arranged on one side of the second bevel gear 8, the first bevel gear 7 is rotatably connected with the second bevel gear 8, a worm wheel rod 4 penetrating to the outside of the device bin 2 is connected to one side of the first bevel gear 7, an air vent pipe 13 penetrating to the inside of the valve body 1 is connected to the bottom of the bearing seat 11, a valve rod 15 is arranged inside the air vent pipe 13, and the bottom of the valve rod 15 is provided with a butterfly plate 17, the outer side of the butterfly plate 17 is provided with an inflatable cushion 16, the bottoms of the two sides of the valve rod 15 are both provided with air outlets 14, the bottom of the butterfly plate 17 is provided with a connecting rod 18 penetrating to the outer side of the inflatable cushion 16, and the bottom of the connecting rod 18 is fixedly connected with a sliding block 19.

The utility model discloses an inflater 9 that sets up cooperatees with inflatable packer 16, can form inseparable sealing washer between butterfly plate 17 and valve body 1, make the water in the water pipe can not reveal when the butterfly valve is closed, greatly increased the availability factor of butterfly valve, avoided ordinary sealing washer to weaken its leakproofness because of long-time use, connecting rod 18 that the bottom of butterfly plate 17 set up simultaneously can cooperate with spout 20 through slider 19, can enough avoid the butterfly valve because when receiving large-traffic impact of fluid, the condition that the butterfly plate 17 takes place to deflect or even warp easily, also can more convenient and fast's rotatory butterfly plate 17 simultaneously.

Please refer to fig. 1 and 4, the pumping rod 6 penetrates into the pump 9, the piston 10 is located inside the pump 9, one side of the pump 9 is fixedly connected with the connecting block 12, and the other side of the connecting block 12 is fixedly connected with one side of the inner wall of the device chamber 2.

This kind of butterfly valve of preventing leaking can guarantee inflater 9 transfixion when bearing frame 11 drives the rotation of valve rod 15 through the setting of connecting block 12.

Please refer to fig. 1, 2 and 3, the inner bottom of the butterfly plate 17 is provided with a sliding slot 20, the sliding slot 20 is connected with the connecting rod 18 by a sliding block 19 in a sliding manner, the number of the connecting rod 18 is two, the number of the sliding block 19 is two, and the two groups of connecting rods 18 are respectively connected with the two groups of sliding blocks 19.

The connecting rod 18 that this kind of butterfly valve of preventing leaking set up through butterfly plate 17 bottom can cooperate with spout 20 through slider 19, can enough avoid the butterfly valve because when receiving the big flow impact of fluid, the condition that butterfly plate 17 takes place to deflect even warp easily, also can be more convenient and fast rotatory butterfly plate 17 simultaneously.

Referring back to fig. 1 and 4, the diameter of the first bevel gear 7 is twice the diameter of the second bevel gear 8.

This kind of butterfly valve of preventing leaking is longer than the diameter of first conical gear 7 through the diameter of second conical gear 8, can be more laborsaving when rotatory worm 4 for butterfly plate 17 is quick more rotates to the assigned position.

Please refer to fig. 1, a handle 5 is disposed on one side of the worm gear 4, and the outer surface of the handle 5 is provided with anti-slip lines.

This kind of butterfly valve of preventing leaking rotates worm gear 4 through handle 5 that sets up can be better, and the antiskid line can avoid user's hand smooth, has increased the practicality.

The working principle is as follows: firstly, a valve body 1 is installed in a pipeline at a specified position, when fluid in the pipeline needs to be blocked, a worm gear rod 4 can be driven to rotate by a handle 5, the worm gear rod 4 drives a second bevel gear 8 to rotate by a first bevel gear 7, the second bevel gear 8 drives a valve rod 15 to rotate under the action of a bearing seat 11, the valve rod 15 drives a connecting rod 18 to rotate by a butterfly plate 17, the connecting rod 18 drives a sliding block 19 to rotate in a chute 20, when the butterfly plate 17 rotates to be parallel to the valve body 1, the worm gear rod 4 stops rotating, the pull rod 3 is pulled at the moment to make the pull rod 3 do up-and-down reciprocating motion, the pull rod 3 drives a piston 10 to do up-and-down reciprocating motion by an inflating rod 6, at the moment, the inside of an inflator 9 is filled with air, the air flows downwards to the inside of a vent pipeline 13 from the inside of the inflator 9 and then, make the inside of inflatable packer 16 be full of empty and begin the inflation, when inflatable packer 16 expands to conflict valve body 1 inner wall completely, stop inflating, when dredging the fluid, can stop rotatoryly when the contained angle with valve body 1 is the right angle with butterfly plate 17 rotation with the same reason to begin to dredge the fluid.

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 butterfly valve against leakage, comprising a valve body (1), characterized in that: the device comprises a valve body (1), and is characterized in that a device bin (2) is arranged at the top of the valve body (1), a pull rod (3) is arranged above the device bin (2), an inflating rod (6) is connected to the bottom of the pull rod (3), a piston (10) is fixedly connected to the bottom of the inflating rod (6), a second bevel gear (8) is arranged at the bottom of the inner wall of the device bin (2), a bearing seat (11) is arranged above the second bevel gear (8), an inflator (9) is connected to the top of the bearing seat (11), a first bevel gear (7) is arranged on one side of the second bevel gear (8), the first bevel gear (7) is rotatably connected with the second bevel gear (8), a worm wheel rod (4) penetrating to the outside of the device bin (2) is connected to one side of the first bevel gear (7), an air vent pipeline (13) penetrating to the inside the valve body (1) is connected to the bottom of the, and the inside of air duct (13) is provided with valve rod (15), the top of valve rod (15) is connected with bearing frame (11), and the bottom of valve rod (15) is provided with butterfly plate (17), the outside of butterfly plate (17) is provided with inflatable packer (16), the bottom of air duct (13) both sides all is provided with gas outlet (14), the bottom of butterfly plate (17) is provided with connecting rod (18) that runs through to inflatable packer (16) below, and the bottom of connecting rod (18) all fixedly connected with slider (19).

2. A leak resistant butterfly valve as set forth in claim 1 wherein: the inflating rod (6) penetrates into the inflator (9), and the piston (10) is located at the bottom end of the inflator (9).

3. A leak resistant butterfly valve as set forth in claim 1 wherein: one side of the inflator (9) is fixedly connected with a connecting block (12), and the other side of the connecting block (12) is fixedly connected with the inner wall of the device bin (2).

4. A leak resistant butterfly valve as set forth in claim 1 wherein: the bottom of butterfly plate (17) inboard is provided with and slider (19) assorted spout (20), and spout (20) and connecting rod (18) pass through slider (19) sliding connection, spout (20) are the loop configuration.

5. A leak resistant butterfly valve as set forth in claim 1 wherein: the number of connecting rods (18) is two sets, the number of sliders (19) is two sets, and the two sets of connecting rods (18) are respectively connected with the sliders (19) in a welding mode.

6. A leak resistant butterfly valve as set forth in claim 1 wherein: the diameter of the first bevel gear (7) is twice that of the second bevel gear (8).

7. A leak resistant butterfly valve as set forth in claim 1 wherein: and a handle (5) is arranged on one side of the worm gear rod (4), and anti-skid grains are arranged on the outer surface of the handle (5).