CN218326265U

CN218326265U - Eccentric butterfly valve

Info

Publication number: CN218326265U
Application number: CN202222734763.1U
Authority: CN
Inventors: 韩勇; 余正可
Original assignee: Shanghai Huadian Valve Group Co ltd
Current assignee: Shanghai Huadian Valve Group Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-17
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses an eccentric butterfly valve relates to butterfly valve technical field, which comprises a valve body, the top of valve body is provided with actuating mechanism, actuating mechanism includes the fixed pipe of fixed connection at the valve body surface, two symmetrical joint framves of fixed surface fixedly connected with of pipe, the fixed surface fixedly connected with spring of joint frame, the one end fixedly connected with operation disc of joint frame is kept away from to the spring. It can be through the valve body, actuating mechanism and the setting of changing the mechanism, can dismantle actuating mechanism or install through pulling operation disc, avoided present mostly need use the spanner, professional tools such as sleeve are dismantled actuating mechanism in the eccentric butterfly valve, the mode of installation is higher to extracting tool's requirement, thereby reduced current dismantlement, the loaded down with trivial details nature of installation, realized quick dismantlement and installation to actuating mechanism, be convenient for to actuating mechanism's inspection and maintenance in the eccentric butterfly valve.

Description

Eccentric butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is an eccentric butterfly valve.

Background

The eccentric butterfly valve is divided into a single eccentric butterfly valve, a double eccentric butterfly valve, a triple eccentric butterfly valve and a variable eccentric butterfly valve. As opposed to a concentric butterfly valve. The butterfly valve in which the axis of the valve rod deviates from the center of the disk and the center of the body at the same time and the sealing pair is an oblique cone is called an eccentric butterfly valve.

According to the eccentric butterfly valve disclosed in the patent No. CN215110564U, when the device needs to wash scales in the valve body, a pair of scale removal pipelines are communicated, a washing medium is filled into the valve body to wash the scales in the valve body, the device has the advantage of good sealing performance between the butterfly valve and the pipelines, and the scales can be quickly removed after the scales in the butterfly valve are scaled.

However, in the implementation process of the above scheme, when the driving part of the eccentric butterfly valve is inspected or maintained, the driving part needs to be disassembled by using special tools such as a wrench and a sleeve, and when the driving part is disassembled or assembled, all the special tools need to be prepared, so that the disassembling and assembling process is complicated, and meanwhile, when the tools are forgotten to be prepared, the driving part cannot be inspected or maintained; therefore, an eccentric butterfly valve is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an eccentric butterfly valve in order to remedy the not enough of prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an eccentric butterfly valve, includes the valve body, the top of valve body is provided with actuating mechanism, actuating mechanism includes the fixed pipe of fixed connection at the valve body surface, the outer fixed surface of fixed pipe is connected with two symmetrical joint framves, the outer fixed surface of joint frame is connected with the spring, the one end fixedly connected with operation disc of joint frame is kept away from to the spring, operation disc is close to a side fixedly connected with gag lever post of joint frame, the upper surface joint of fixed pipe has the drive case, the outer fixed surface of drive case is connected with two symmetrical joint boards, spacing hole has been seted up to the surface of joint board, the interior roof of drive case rotates and is connected with the dwang, the outer fixed surface of dwang is connected with two symmetrical joint strips, the inside of valve body is provided with changes the mechanism, it includes the valve rod of rotation connection at the valve body inner wall to change the mechanism, two symmetrical joint grooves are seted up to the surface of valve rod.

Furthermore, the gag lever post runs through joint frame and extends to the inside of joint frame, gag lever post and joint frame sliding connection, gag lever post and spacing hole looks adaptation, when the gag lever post inserts spacing downthehole spacing to the drive case spacing.

Further, the top of valve rod runs through the valve body and extends to the top of valve body, dwang and valve rod looks adaptation, joint strip and joint groove looks adaptation make the joint strip insert the joint inslot in inserting the valve rod with the dwang to accomplish the dwang and be connected with the valve rod.

Further, the outer fixed surface of dwang is connected with half worm wheel, the inner wall of drive case rotates and is connected with the worm, the worm meshes with half worm wheel mutually, drives half worm wheel and dwang rotation when the worm rotates.

Furthermore, a circular handle is arranged outside the driving box, one end of the worm, close to the circular handle, penetrates through the driving box and extends to the outside of the driving box, one end of the worm, close to the circular handle, is fixedly connected with the circular handle, and the circular handle is convenient for an operator to rotate the worm.

Further, the fixed surface of valve rod is connected with the fixing base, the fixed surface of fixing base is connected with the butterfly plate, the surface mounting of butterfly plate has the sealing ring, and the sealing ring sets up to the substitution, can reduce the maintenance cost when damaging.

Furthermore, the inner wall fixedly connected with spacing ring of valve body, the inner wall joint of valve body has the disk seat, disk seat and spacing ring looks adaptation, the spacing groove has been seted up to the inner wall of valve body, the inner wall joint of spacing groove has second clamping ring piece and two first clamping ring pieces, first clamping ring piece and second clamping ring piece all with disk seat looks adaptation.

Compared with the prior art, the eccentric butterfly valve has the following beneficial effects:

1. the utility model discloses a valve body, actuating mechanism and the setting of changing the mechanism, can dismantle actuating mechanism or install through pulling operation disc, avoided present mostly need use the spanner, professional tools such as sleeve dismantle actuating mechanism in to eccentric butterfly valve, the mode of installation is higher to extracting tool's requirement to the loaded down with trivial details nature of current dismantlement, installation, realized quick dismantlement and installation to actuating mechanism, be convenient for to actuating mechanism's inspection and maintenance in the eccentric butterfly valve.

2. The utility model discloses a spacing ring, disk seat, first clamping ring piece, the setting of first clamping ring piece and second clamping ring piece, when the disk seat needs to be changed, with the back of installing bolt pull down on the first clamping ring piece, remove and pull down second clamping ring piece to valve body axle center department earlier, take off first clamping ring piece again, can accomplish and dismantle the disk seat, according to opposite step during the installation disk seat, can install the disk seat between spacing ring and first clamping ring piece and second clamping ring piece, be convenient for change the disk seat.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the split structure of the valve body and the driving box of the present invention;

fig. 3 is a schematic view of the internal structure of the driving box of the present invention;

FIG. 4 is a schematic view of the split structure of the valve body and the valve seat of the present invention;

fig. 5 is a schematic perspective view of the butterfly plate and the sealing ring of the present invention.

In the figure: 1. a valve body; 2. a drive mechanism; 21. fixing the tube; 22. a clamping frame; 23. a spring; 24. operating the disc; 25. a limiting rod; 26. a drive box; 27. a clamping and connecting plate; 28. a limiting hole; 29. rotating the rod; 210. clamping the strips; 211. a half worm gear; 212. a worm; 213. a round handle; 3. a mechanism is replaced; 31. a valve stem; 32. a clamping groove; 33. a fixed seat; 34. a butterfly plate; 35. a seal ring; 36. a limiting ring; 37. a valve seat; 38. a limiting groove; 39. a first clamp ring block; 310. a second press ring block.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

This embodiment provides an eccentric butterfly valve, the device can dismantle actuating mechanism 2 or install through pulling operation disc 24, avoided present mostly need use the spanner, professional tools such as sleeve are dismantled actuating mechanism 2 in the eccentric butterfly valve, the mode of installation is higher to extracting tool's requirement, thereby reduced current dismantlement, the loaded down with trivial details nature of installation, realized quick dismantlement and installation to actuating mechanism 2, be convenient for to actuating mechanism 2's in the eccentric butterfly valve inspection and maintenance.

Referring to fig. 1, 2 and 3, an eccentric butterfly valve, including valve body 1, the surface of valve body 1 is provided with two symmetrical mounting flange, can install valve body 1 to pipeline department through the mounting flange, the top of valve body 1 is provided with actuating mechanism 2, actuating mechanism 2 includes fixed tube 21 of fixed connection at the surface of valve body 1, the fixed surface fixed connection of fixed tube 21 has two symmetrical joint framves 22, the fixed surface fixed connection of joint frame 22 has spring 23, spring 23 is normal state when gag lever post 25 inserts in spacing hole 28, spring 23 is by stretching state when gag lever post 25 extracts from spacing hole 28, spring 23 can avoid gag lever post 25 from spacing hole 28 non-artificial breaking away from.

Spring 23 keeps away from one end fixedly connected with operation disc 24 of joint frame 22, operation disc 24 is close to a side fixedly connected with gag lever post 25 of joint frame 22, the upper surface joint of fixed pipe 21 has drive box 26, the bottom surface of drive box 26 is provided with the joint pipe with fixed pipe 21 looks adaptation, the joint pipe that makes drive box 26 can joint at the inner wall of fixed pipe 21, two symmetrical joint boards 27 of the fixed surface fixedly connected with of drive box 26, spacing hole 28 has been seted up to joint board 27's surface, the interior roof rotation of drive box 26 is connected with dwang 29, the fixed surface of dwang 29 is connected with two symmetrical joint strips 210.

Gag lever post 25 runs through joint frame 22 and extends to the inside of joint frame 22, gag lever post 25 and joint frame 22 sliding connection, and joint frame 22 plays the guide effect for gag lever post 25's removal, and gag lever post 25 and spacing hole 28 looks adaptation carry on spacingly to drive case 26 when gag lever post 25 inserts in the spacing hole 28.

The outer surface of the rotating rod 29 is fixedly connected with a half worm wheel 211, the inner wall of the driving box 26 is rotatably connected with a worm 212, the worm 212 is meshed with the half worm wheel 211, and the half worm wheel 211 and the rotating rod 29 are driven to rotate when the worm 212 rotates.

The outside of drive case 26 is provided with circular handle 213, and circular handle 213's surface is provided with anti-skidding line, and friction between increase hand and the circular handle 213, hand landing when avoiding operating, the one end that worm 212 is close to circular handle 213 runs through drive case 26 and extends to the outside of drive case 26, one end and circular handle 213 fixed connection that worm 212 is close to circular handle 213, and the setting of circular handle 213 is convenient for operating personnel to rotate worm 212.

Referring to fig. 1, 4 and 5, the inside of the valve body 1 is provided with the replacing mechanism 3, the replacing mechanism 3 includes a valve rod 31 rotatably connected to the inner wall of the valve body 1, the axis of the valve rod 31 deviates from the center of the butterfly plate 34 and the center of the valve body 1, so that the butterfly plate 34 can be rapidly separated from the valve seat 37 after being opened, unnecessary excessive extrusion and scraping phenomena of the sealing ring 35 and the valve seat 37 are greatly eliminated, the opening resistance distance is reduced, the abrasion is reduced, the service life of the valve seat 37 is prolonged, the top of the valve rod 31 is hollow, the rotating rod 29 can be inserted into the valve rod 31, and the outer surface of the valve rod 31 is provided with two symmetrical clamping grooves 32.

Valve body 1 is run through and extends to valve body 1's top on valve rod 31's top, dwang 29 and valve rod 31 looks adaptation, joint strip 210 and joint groove 32 looks adaptation, inserts dwang 29 and makes joint strip 210 insert in the valve rod 31 in the joint groove 32 to accomplish being connected of dwang 29 and valve rod 31.

The fixed surface of valve rod 31 is connected with fixing base 33, and the fixed surface of fixing base 33 is connected with butterfly plate 34, and the surface mounting of butterfly plate 34 has sealing ring 35, all is provided with the screw of looks adaptation on sealing ring 35 and the butterfly plate 34, makes sealing ring 35 and butterfly plate 34 pass through the screw installation, and sealing ring 35 sets up to the displaceable, can reduce the maintenance cost when damaging.

The inner wall fixedly connected with spacing ring 36 of valve body 1, the inner wall joint of valve body 1 has disk seat 37,

disk seat

37 and 36 looks adaptations of spacing ring, and spacing groove 38 has been seted up to the inner wall of valve body 1, and the inner wall joint of spacing groove 38 has second clamp ring piece 310 and two first clamp ring pieces 39, and first clamp ring piece 39 and second clamp ring piece 310 all with disk seat 37 looks adaptations.

The working principle is as follows: when the device is used, the operation disc 24 is pulled, the limiting rod 25 is pulled out of the limiting hole 28, the spring 23 is stretched, the driving box 26 is pulled out of the fixed pipe 21, the rotating rod 29 is pulled out of the valve rod 31, the driving mechanism 2 can be checked or maintained, when the device is installed, the operation disc 24 is pulled, the driving box 26 is inserted into the fixed pipe 21, the clamping plate 27 is inserted into the clamping frame 22, meanwhile, the clamping strip 210 is ensured to be inserted into the clamping groove 32, the operation disc 24 is loosened, the limiting rod 25 is inserted into the limiting hole 28, limiting of the clamping plate 27 is completed, the device can be used for dismounting or installing the driving mechanism 2 by pulling the operation disc 24, the situation that most of the driving mechanism 2 in an eccentric butterfly valve needs to be dismounted by using professional tools such as a wrench and a sleeve and the like, the requirement on a dismounting tool in an installation mode is high is avoided, the complexity of the conventional dismounting and installation is reduced, the quick dismounting and installation of the driving mechanism 2 in the eccentric butterfly valve are realized, and the inspection and maintenance of the driving mechanism 2 in the eccentric butterfly valve are convenient.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An eccentric butterfly valve, includes valve body (1), its characterized in that: the top of valve body (1) is provided with actuating mechanism (2), actuating mechanism (2) are including fixed connection at fixed pipe (21) of valve body (1) surface, the outer fixed surface of fixed pipe (21) is connected with two symmetrical joint framves (22), the outer fixed surface of joint frame (22) is connected with spring (23), the one end fixedly connected with operation disc (24) of joint frame (22) are kept away from in spring (23), operation disc (24) are close to a side fixedly connected with gag lever post (25) of joint frame (22), the upper surface joint of fixed pipe (21) has drive box (26), the outer fixed surface of drive box (26) is connected with two symmetrical joint board (27), spacing hole (28) have been seted up to the surface of joint board (27), the interior roof of drive box (26) rotates and is connected with dwang (29), the outer fixed surface of dwang (29) is connected with two symmetrical joint strip (210), the inside of valve body (1) is provided with change mechanism (3), change mechanism (3) including rotating the inner wall of connecting at valve body (1) inner wall the valve rod (31), two symmetrical joint groove (32) have been seted up to the surface of valve rod (31).

2. An eccentric butterfly valve according to claim 1, wherein: gag lever post (25) run through joint frame (22) and extend to the inside of joint frame (22), gag lever post (25) and joint frame (22) sliding connection, gag lever post (25) and spacing hole (28) looks adaptation.

3. An eccentric butterfly valve in accordance with claim 1, wherein: the top of valve rod (31) runs through valve body (1) and extends to the top of valve body (1), dwang (29) and valve rod (31) looks adaptation, joint strip (210) and joint groove (32) looks adaptation.

4. An eccentric butterfly valve according to claim 1, wherein: the outer surface of the rotating rod (29) is fixedly connected with a half worm wheel (211), the inner wall of the driving box (26) is rotatably connected with a worm (212), and the worm (212) is meshed with the half worm wheel (211).

5. An eccentric butterfly valve according to claim 4, wherein: the outside of the driving box (26) is provided with a round handle (213), one end of the worm (212) close to the round handle (213) penetrates through the driving box (26) and extends to the outside of the driving box (26), and one end of the worm (212) close to the round handle (213) is fixedly connected with the round handle (213).

6. An eccentric butterfly valve according to claim 1, wherein: the fixed surface of valve rod (31) is connected with fixing base (33), the fixed surface of fixing base (33) is connected with butterfly plate (34), the surface mounting of butterfly plate (34) has sealing ring (35).

7. An eccentric butterfly valve according to claim 1, wherein: the inner wall fixedly connected with spacing ring (36) of valve body (1), the inner wall joint of valve body (1) has disk seat (37), disk seat (37) and spacing ring (36) looks adaptation, spacing groove (38) have been seted up to the inner wall of valve body (1), the inner wall joint of spacing groove (38) has second clamping ring piece (310) and two first clamping ring pieces (39), first clamping ring piece (39) and second clamping ring piece (310) all with disk seat (37) looks adaptation.