CN211288784U

CN211288784U - Novel double-eccentric type sealing butterfly valve

Info

Publication number: CN211288784U
Application number: CN201921788676.6U
Authority: CN
Inventors: 戚涛春; 刘玉贵
Original assignee: Jiangsu Henghe Automatic Control Valve Co ltd
Current assignee: Jiangsu Henghe Automatic Control Valve Co ltd
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-08-18
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a novel two eccentric seal butterfly valves, including upper end cover, work cavity, lead screw and valve, the inside vertical lead screw of installing of work cavity, and the inside axle sleeve that is provided with of work cavity in the lead screw outside, and one side welded valve of axle sleeve, the winding of valve outside has the arc cover, and the work cavity inner wall of valve outside is provided with the second sealing washer, work cavity top is provided with the upper end cover, and the inside of upper end cover is provided with the mounting panel, the inside second mounting groove that runs through the mounting panel that transversely is provided with of upper end cover, the both ends of work cavity bottom all are provided with the connecting axle. The utility model discloses a valve outside winding arc cover and the cooperation of first sealing washer, when the valve takes place to rotate, oppress first sealing washer and take place to remove to make the second spring compression of first clamp plate one side, avoided the wearing and tearing between sealing washer and part, improved life.

Description

Novel double-eccentric type sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a novel two eccentric seal butterfly valves.

Background

The double-eccentric butterfly valve is also called as a high-performance butterfly valve, is mainly suitable for water drainage of systems such as water plants, power plants, steel plant smelting, chemical engineering, water source spring engineering, environmental facility construction and the like, is particularly suitable for water pipeline, and is used as adjusting and intercepting equipment.

First, the butterfly valve is sealed to two eccentric formulas of tradition, appears the valve and leaks or inside jam, and it is complicated to dismantle, and need be with the help of special instrument, can waste a large amount of manpowers, time.

Second, the butterfly valve is sealed to traditional novel two eccentric formulas, long-time rotatory work can make sealing washer and rubber materials wearing and tearing, reduces life.

Third, the traditional novel double-eccentric sealing butterfly valve cannot be adapted to be installed between different thick and thin pipelines, and the installation process is complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel two eccentric formula seal butterfly valves to the valve that appears that proposes in solving above-mentioned background art leaks or inside blocks up, and it is complicated to dismantle, and need be with the help of special instrument, can waste a large amount of manpowers, and time, long-time rotatory work can make sealing washer and rubber materials wearing and tearing, reduces life, can not adapt to install between different thickness pipelines, and the numerous and diverse problem of installation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel two eccentric seal butterfly valves, includes upper end cover, work cavity, lead screw and valve, the inside vertical lead screw of installing of work cavity, and the inside axle sleeve that is provided with of work cavity in the lead screw outside, and one side welded valve of axle sleeve, the winding of valve outside has the arc cover, and the work cavity inner wall of valve outside is provided with the second sealing washer, the work cavity inner wall of second sealing washer one side is provided with second fixing washer, and the work cavity inner wall of second fixing washer one side is provided with first fixing washer, work cavity top is provided with the upper end cover, and the inside of upper end cover is provided with the mounting panel, the inside second mounting groove that runs through the mounting panel that transversely is provided with of upper end cover, the both ends of work cavity bottom all are provided with the connecting axle.

Preferably, a first pressing plate is arranged on the inner wall of the second fixing washer on one side of the first fixing washer, a second spring is arranged between the first pressing plate and the first fixing washer, a wedge-shaped ring is arranged on the inner wall of the second fixing washer on one side of the first pressing plate, and a first sealing ring is arranged on the inner wall of the second fixing washer on the outer side of the wedge-shaped ring.

Preferably, a second screw is arranged in the second mounting groove, the second screw and the screw rod form an engagement mechanism, the second mounting groove is semi-enclosed, a rocker is arranged at one end of the second mounting groove, and one end of the rocker is connected with the second screw.

Preferably, the mounting panel bottom is provided with the stopper, the inside top symmetry of working cavity is provided with the recess, and the working cavity top of recess one side be provided with stopper assorted spacing groove.

Preferably, the one end symmetry that the connecting axle is close to the work cavity is provided with first mounting groove to the equal vertical first screw rod of installing in first mounting groove, the outside of first screw rod all is provided with the rod cover, and the rod cover all has splint through the welding of connecting block, the connecting axle inboard all is provided with the third sealing washer.

Preferably, the inner side of the clamping plate is uniformly provided with a first spring, and one end of the first spring is welded with a non-slip mat.

Compared with the prior art, the beneficial effects of the utility model are that: this novel two eccentric formula seal butterfly valves is rational in infrastructure, has following advantage:

1. install two eccentric seal butterfly valves between required pipeline, inside the pipe insert the connecting axle, manual rotation first screw rod this moment, through cooperation between first screw rod and the rod cover, realize reciprocating of splint, thereby accomplish the fixed to the pipeline, and the splint inboard is provided with the slipmat through first spring, the cushioning effect of first spring can be fine avoid the impact of liquid in the pipeline not hard up to the pipeline junction, liquid leakage has been avoided, and the slipmat has prevented the pipeline and has outwards slided, guarantee pipe connection's safety, reliability, after the installation, and it is sealed to the junction through the third sealing washer.

2. Through the cooperation of the winding arc cover of valve outside and first sealing washer, when the arc cover takes place to rotate, oppress first sealing washer and take place to remove to make the second spring compression of first clamp plate one side, and seal through first sealing washer, thereby avoid the valve to rotate the wearing and tearing to first sealing washer for a long time, improved life.

3. Through rotating the upper end cover, through the cooperation of stopper and spacing groove, can realize that the butterfly valve is opened, because the lead screw passes through the bearing fixed, and the valve passes through the axle sleeve and sets up in the lead screw outside, realize dismantling detection or regularly clear up the blockage fast to this butterfly valve.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic side view of the cross-sectional structure of the present invention;

fig. 3 is a schematic side view of the clamping mechanism of the present invention;

fig. 4 is a schematic top view of the cross-sectional structure of the upper end cap of the present invention;

FIG. 5 is a schematic view of the top view cross-sectional structure of the working chamber of the present invention;

fig. 6 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. an upper end cover; 2. a rocker; 3. a working cavity; 4. a connecting shaft; 5. a first mounting groove; 6. a rod sleeve; 7. a first screw; 8. a splint; 9. a screw rod; 10. mounting a plate; 11. a second screw; 12. a second mounting groove; 13. a non-slip mat; 14. a first spring; 15. a first platen; 16. a first seal ring; 17. a second seal ring; 18. a wedge-shaped ring; 19. a valve; 20. a first stationary washer; 21. a second spring; 22. an arc-shaped sleeve; 23. a second stationary washer; 24. a third seal ring; 25. a limiting block; 26. a groove; 27. a limiting groove; 28. and a shaft sleeve.

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. 1-6, the present invention provides an embodiment: a novel double-eccentric type sealing butterfly valve comprises an upper end cover 1, a working cavity 3, a lead screw 9 and a valve 19, wherein the lead screw 9 is vertically arranged inside the working cavity 3, a shaft sleeve 28 is arranged inside the working cavity 3 outside the lead screw 9, the valve 19 is welded on one side of the shaft sleeve 28, an arc sleeve 22 is wound on the outer side of the valve 19, a second sealing ring 17 is arranged on the inner wall of the working cavity 3 outside the valve 19, a second fixing gasket 23 is arranged on the inner wall of the working cavity 3 on one side of the second sealing ring 17, and a first fixing gasket 20 is arranged on the inner wall of the working cavity 3 on one side of the second fixing gasket 23;

a first pressure plate 15 is arranged on the inner wall of a second fixed gasket 23 on one side of the first fixed gasket 20, a second spring 21 is arranged between the first pressure plate 15 and the first fixed gasket 20, a wedge-shaped ring 18 is arranged on the inner wall of the second fixed gasket 23 on one side of the first pressure plate 15, and a first sealing ring 16 is arranged on the inner wall of the second fixed gasket 23 on the outer side of the wedge-shaped ring 18;

through the matching of the arc-shaped sleeve 22 wound on the outer side of the valve 19 and the first sealing ring 16, when the arc-shaped sleeve 22 rotates, the first sealing ring 16 is pressed to move, so that the second spring 21 on one side of the first pressure plate 15 is compressed and is sealed through the first sealing ring 16, the abrasion of the valve 19 to the first sealing ring 16 due to long-time rotation is avoided, and the service life is prolonged;

the top end of the working cavity 3 is provided with an upper end cover 1, and a mounting plate 10 is arranged inside the upper end cover 1;

a limiting block 25 is arranged at the bottom end of the mounting plate 10, grooves 26 are symmetrically arranged at the top end inside the working cavity 3, and a limiting groove 27 matched with the limiting block 25 is arranged at the top end of the working cavity 3 on one side of each groove 26;

the butterfly valve can be opened by rotating the upper end cover 1 and matching the limiting block 25 with the limiting groove 27, so that the butterfly valve can be conveniently detached and detected;

a second mounting groove 12 penetrating through the mounting plate 10 is transversely arranged in the upper end cover 1;

a second screw 11 is arranged in the second mounting groove 12, the second screw 11 and the screw rod 9 form an engagement mechanism, the second mounting groove 12 is semi-closed, a rocker 2 is arranged at one end of the second mounting groove 12, and one end of the rocker 2 is connected with the second screw 11;

the second screw 11 and the screw rod 9 form an engagement mechanism, the rocker 2 is manually rotated to drive the second screw 11 to rotate, so that the screw rod 9 rotates, and the valve 19 is opened and closed;

and connecting shafts 4 are arranged at two ends of the bottom end of the working cavity 3.

One end, close to the working cavity 3, of the connecting shaft 4 is symmetrically provided with first mounting grooves 5, first screw rods 7 are vertically mounted in the first mounting grooves 5, rod sleeves 6 are arranged on the outer sides of the first screw rods 7, clamping plates 8 are welded on the rod sleeves 6 through connecting blocks, and third sealing rings 24 are arranged on the inner sides of the connecting shaft 4;

the first screw 7 is manually rotated, the clamping plate 8 is moved up and down through the matching between the first screw 7 and the rod sleeve 6, so that the pipeline is fixed, and after the pipeline is installed, the joint is sealed through the third sealing ring 24;

the inner side of the clamping plate 8 is uniformly provided with a first spring 14, and one end of the first spring 14 is welded with an anti-slip pad 13;

the inboard slipmat 13 that is provided with through first spring 14 of splint 8, the impact of avoiding liquid in the pipeline that the cushioning effect of first spring 14 can be fine is not hard up to the pipe connection department, has avoided liquid to reveal, and slipmat 13 has prevented that the pipeline from outwards sliding, guarantees the safety of pipe connection, and is reliable.

The working principle is as follows: when the double-eccentric sealing butterfly valve is used, the double-eccentric sealing butterfly valve is installed between required pipelines, when the pipelines are inserted into the connecting shaft 4, the first screw 7 is manually rotated, the clamping plate 8 is moved up and down through the matching between the first screw 7 and the rod sleeve 6, so that the pipelines are fixed, the inner side of the clamping plate 8 is provided with the anti-slip pad 13 through the first spring 14, the buffering effect of the first spring 14 can well prevent the impact of liquid in the pipelines from loosening at the pipeline joint, the leakage of the liquid is avoided, the anti-slip pad 13 prevents the pipelines from sliding outwards, the safety and reliability of pipeline connection are ensured, and after the double-eccentric sealing butterfly valve is installed, the joint is sealed through the third sealing ring 24;

if dismantle detection or regularly clear up the blockage to this butterfly valve, the accessible rotates upper end cover 1, through stopper 25 and spacing groove 27's cooperation, can realize that the butterfly valve opens, because lead screw 9 passes through the bearing fixed, and valve 19 passes through axle sleeve 28 and sets up in the lead screw 9 outside, realizes dismantling the detection to the butterfly valve fast.

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. The utility model provides a novel two eccentric seal butterfly valves, includes upper end cover (1), working cavity (3), lead screw (9) and valve (19), its characterized in that: the lead screw (9) is vertically arranged in the working cavity (3), the shaft sleeve (28) is arranged in the working cavity (3) outside the lead screw (9), the valve (19) welded on one side of the shaft sleeve (28) is wound on the outer side of the valve (19) to form an arc sleeve (22), the inner wall of the working cavity (3) outside the valve (19) is provided with a second sealing ring (17), the inner wall of the working cavity (3) on one side of the second sealing ring (17) is provided with a second fixing gasket (23), the inner wall of the working cavity (3) on one side of the second fixing gasket (23) is provided with a first fixing gasket (20), the top end of the working cavity (3) is provided with an upper end cover (1), the mounting plate (10) is arranged in the upper end cover (1), a second mounting groove (12) penetrating through the mounting plate (10) is transversely arranged in the upper end cover (1, and connecting shafts (4) are arranged at two ends of the bottom end of the working cavity (3).

2. The novel double-eccentric sealing butterfly valve according to claim 1, characterized in that: the inner wall of the second fixing gasket (23) on one side of the first fixing gasket (20) is provided with a first pressure plate (15), a second spring (21) is arranged between the first pressure plate (15) and the first fixing gasket (20), the inner wall of the second fixing gasket (23) on one side of the first pressure plate (15) is provided with a wedge-shaped ring (18), and the inner wall of the second fixing gasket (23) on the outer side of the wedge-shaped ring (18) is provided with a first sealing ring (16).

3. The novel double-eccentric sealing butterfly valve according to claim 1, characterized in that: the inside second screw rod (11) that is provided with of second mounting groove (12), and second screw rod (11) and lead screw (9) constitute engagement mechanism, second mounting groove (12) are semi-enclosed, and second mounting groove (12) one end is provided with rocker (2), and rocker (2) one end links to each other with second screw rod (11).

4. The novel double-eccentric sealing butterfly valve according to claim 1, characterized in that: mounting panel (10) bottom is provided with stopper (25), the inside top symmetry of working cavity (3) is provided with recess (26), and working cavity (3) top of recess (26) one side be provided with stopper (25) assorted spacing groove (27).

5. The novel double-eccentric sealing butterfly valve according to claim 1, characterized in that: the connecting shaft (4) is close to one end symmetry of working cavity (3) and is provided with first mounting groove (5) to first screw rod (7) are installed to the equal vertical installation in first mounting groove (5) inside, the outside of first screw rod (7) all is provided with rod cover (6), and rod cover (6) all has splint (8) through the connecting block welding, connecting shaft (4) inboard all is provided with third sealing washer (24).

6. The novel double-eccentric sealing butterfly valve according to claim 5, characterized in that: the inner side of the clamping plate (8) is uniformly provided with a first spring (14), and one end of the first spring (14) is welded with an anti-slip pad (13).