CN216589993U

CN216589993U - Butterfly valve easy to clean

Info

Publication number: CN216589993U
Application number: CN202123098695.6U
Authority: CN
Inventors: 吴林根; 尹强
Original assignee: Shenzhen Elite Valve Co ltd
Current assignee: Shenzhen Elite Valve Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-24
Anticipated expiration: 2031-12-10

Abstract

The utility model belongs to the technical field of butterfly valves, in particular to a butterfly valve easy to clean, which comprises a valve body, wherein a first valve rod and a second valve rod are rotatably connected inside the valve body, a first butterfly plate and a second butterfly plate are respectively fixed on the outer walls of the first valve rod and the second valve rod, a first support rod is fixedly connected at the front end of the first valve rod, a connecting rod is rotatably connected at one end of the first support rod, which is far away from the first valve rod, a second support rod is rotatably connected at one end of the connecting rod, which is far away from the first support rod, a support is fixedly connected at the rear end of the valve body, a worm wheel is rotatably connected inside the support, a worm is rotatably connected above the inside of the support, a hand wheel is fixed at one end of the worm, a sealing strip is fixed at the lower end of the first butterfly plate, sealing plates are fixed at two ends of the inner wall of the valve body, and a sealing washer is fixedly installed on the inner wall of the valve body, so that the butterfly plates are inconvenient to clean, low pressure bearing capacity and poor valve sealing performance.

Description

Butterfly valve easy to clean

Technical Field

The utility model belongs to the technical field of butterfly valves, and particularly relates to a butterfly valve easy to clean.

Background

A butterfly valve, also called a flap valve, is a regulating valve with a simple structure, and can be used for on-off control of low-pressure pipeline media, namely a valve with a closing part (a valve clack or a butterfly plate) which is a disc and rotates around a valve shaft to open and close, and the valve 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. The pipe mainly plays a role in cutting off and throttling. The existing butterfly valve opening and closing piece is a disc-shaped butterfly plate, rotates around the axis of the butterfly plate in a valve body, causes poor pressure bearing capacity, is easy to deform in the actual use process, can accumulate dust in the inner cavity of the valve in long-time use, and easily causes blockage of a valve pipeline under long-time accumulated dust, further influences the use effect of the valve, and reduces the service life of the valve; in order to solve the problem of exposure of the existing butterfly valve in the use process, the butterfly valve needs to be structurally improved and optimized.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the butterfly valve easy to clean, and the butterfly valve has the characteristics of convenience in cleaning a butterfly plate, improved bearing capacity and improved sealing performance.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a butterfly valve of easily clearing up, includes the valve body, the inside of valve body is rotated and is connected with first valve rod and second valve rod, the outer wall of first valve rod and second valve rod is fixed with first butterfly plate and second butterfly plate respectively, the first branch of front end fixedly connected with of first valve rod, the one end that first valve rod was kept away from to first branch is rotated and is connected with the connecting rod, the one end that first branch was kept away from to the connecting rod is rotated and is connected with second branch, and the one end and the second valve rod fixed connection of connecting rod are kept away from to second branch, the rear end of valve body is fixed with the support, the inside of support is rotated and is connected with the worm wheel, the inside top of support is rotated and is connected with the worm, the one end of worm is fixed with the hand wheel.

As a preferred technical solution of the butterfly valve easy to clean of the present invention, a sealing strip is fixed to a lower end of the first butterfly plate.

As the preferred technical scheme of the butterfly valve easy to clean, the sealing plates are fixed at two ends of the inner wall of the valve body.

As the preferred technical scheme of the butterfly valve easy to clean, the inner wall of the valve body is fixedly provided with the sealing washer.

As a preferred technical scheme of the butterfly valve easy to clean, the sealing washer is an expanded polytetrafluoroethylene sealing washer.

As a preferred technical scheme of the butterfly valve easy to clean, the rear end of the first valve rod is fixedly connected with a worm wheel.

Compared with the prior art, the utility model has the beneficial effects that: at first, drive the worm wheel through rotating hand wheel cooperation worm and rotate, the worm wheel drives the upset of second valve stem through first valve stem, the front end of first valve stem drives second branch through first branch cooperation connecting rod simultaneously, second branch passes through the second valve stem and drives the second butterfly plate, thereby realize opening and shutting of first butterfly plate and second butterfly plate antiport, the shape through first butterfly plate and second butterfly plate is similar to the semicircle, it is the board of a disc to compare in present butterfly valve opening and shutting, reduce single volume, it is convenient during the clearance, the bearing capacity improves.

The sealing plate is fixed to the sealing strip fixed to the lower end of the first butterfly plate, the sealing plate is fixed to the two ends of the inner wall of the valve body, the sealing washer is fixedly mounted on the inner wall of the valve body, liquid in the valve body is prevented from leaking through gaps between the first butterfly plate and the inner wall of the valve body, and the sealing performance of the butterfly valve is guaranteed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of a butterfly valve according to the present invention;

FIG. 2 is a schematic view of the interior of the stent of the present invention;

FIG. 3 is a schematic structural view of a butterfly valve plane according to the present invention;

in the figure: 1. a valve body; 2. a first valve stem; 3. a second valve stem; 4. a first butterfly plate; 5. a second butterfly plate; 6. a first support bar; 7. a connecting rod; 8. a second support bar; 9. a sealing strip; 10. a support; 11. a worm gear; 12. a worm; 13. a hand wheel; 14. a sealing plate; 15. a gasket is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-3, the present invention provides the following technical solutions: a butterfly valve easy to clean comprises a valve body 1, a first valve rod 2 and a second valve rod 3 are rotatably connected inside the valve body 1, a first butterfly plate 4 and a second butterfly plate 5 are respectively fixed on the outer walls of the first valve rod 2 and the second valve rod 3, a first support rod 6 is fixedly connected to the front end of the first valve rod 2, a connecting rod 7 is rotatably connected to one end, away from the first valve rod 2, of the first support rod 6, a second support rod 8 is rotatably connected to one end, away from the first support rod 6, of the connecting rod 7, one end, away from the connecting rod 7, of the second support rod 8 is fixedly connected with the second valve rod 3, a support 10 is fixed to the rear end of the valve body 1, a worm wheel 11 is rotatably connected to the inside of the support 10, a worm 12 is rotatably connected to the upper inside of the support 10, a hand wheel 13 is fixed to one end of the worm 12, in the embodiment, the worm wheel 13 is matched with the worm 12 to drive the worm wheel 11 to rotate, the worm wheel 11 drives the second valve rod 3 to turn through the first valve rod 2, simultaneously the front end of first valve rod 2 drives second branch 8 through 6 cooperation connecting rods 7 of first branch, second branch 8 drives second butterfly plate 5 through second valve rod 3, thereby realize opening and shutting of first butterfly plate 4 and 5 antiport of second butterfly plate, the shape through first butterfly plate 4 and second butterfly plate 5 is similar to the semicircle, compare in present butterfly valve opening and shutting piece be the board of a disc, reduce single volume, it is convenient during the clearance, the bearing capacity improves.

Specifically, the sealing strip 9 is fixed to the lower end of the first butterfly plate 4, and in this embodiment, when the first butterfly plate 4 and the second butterfly plate 5 are closed, the first butterfly plate 4 is attached to one end of the second butterfly plate 5 through the sealing strip 9, so that the sealing performance between the first butterfly plate 4 and the second butterfly plate 5 is improved.

Specifically, sealing plates 14 are fixed to two ends of the inner wall of the valve body 1, and when the first butterfly plate 4 and the second butterfly plate 5 are closed in the embodiment, the first butterfly plate 4 is attached to one end of the second butterfly plate 5 through the sealing strip 9, so that the sealing performance between the first butterfly plate and the second butterfly plate is improved.

Specifically, the inner wall fixed mounting of valve body 1 has seal ring 15, avoids the liquid in the valve body 1 to reveal through the gap between first butterfly plate 4 and second butterfly plate 5 and the inner wall of valve body 1 in this embodiment, has guaranteed the sealing performance of butterfly valve.

Specifically, the sealing washer 15 is an expanded polytetrafluoroethylene sealing washer, in this embodiment, polytetrafluoroethylene, generally called "non-stick coating" or "easy-to-clean material, which has the characteristics of acid and alkali resistance and resistance to various solvents.

Specifically, the rear end of first valve rod 2 and worm wheel 11 fixed connection, rotate through worm wheel 11 in this embodiment and drive first valve rod 2 and rotate.

The working principle and the using process of the utility model are as follows: firstly, a worm wheel 11 is driven to rotate by rotating a hand wheel 13 and matching with a worm 12, the worm wheel 11 drives a second valve rod 3 to turn over through a first valve rod 2, meanwhile, the front end of the first valve rod 2 drives a second supporting rod 8 by matching with a connecting rod 7 through a first supporting rod 6, and the second supporting rod 8 drives a second butterfly plate 5 through the second valve rod 3, so that the first butterfly plate 4 and the second butterfly plate 5 can be opened and closed in a reverse rotation manner, the shape of the first butterfly plate 4 and the second butterfly plate 5 is approximate to a semicircle, and compared with the existing butterfly valve opening and closing piece, the butterfly valve opening and closing piece is a disc-shaped plate, so that the single size is reduced, the cleaning is convenient, and the pressure bearing capacity is improved; when the first butterfly plate 4 and the second butterfly plate 5 are closed, the first butterfly plate 4 is attached to one end of the second butterfly plate 5 through the sealing strip 9, so that the sealing performance between the first butterfly plate and the second butterfly plate is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an easy butterfly valve of clearing up, includes valve body (1), its characterized in that: a first valve rod (2) and a second valve rod (3) are rotatably connected inside the valve body (1), a first butterfly plate (4) and a second butterfly plate (5) are respectively fixed on the outer walls of the first valve rod (2) and the second valve rod (3), a first support rod (6) is fixedly connected at the front end of the first valve rod (2), a connecting rod (7) is rotatably connected at one end of the first support rod (6) far away from the first valve rod (2), one end of the connecting rod (7) far away from the first supporting rod (6) is rotatably connected with a second supporting rod (8), and one end of the second supporting rod (8) far away from the connecting rod (7) is fixedly connected with the second valve rod (3), a bracket (10) is fixed at the rear end of the valve body (1), a worm wheel (11) is rotatably connected inside the bracket (10), the upper portion of the interior of the support (10) is rotatably connected with a worm (12), and a hand wheel (13) is fixed at one end of the worm (12).

2. An easy-to-clean butterfly valve according to claim 1, wherein: and a sealing strip (9) is fixed at the lower end of the first butterfly plate (4).

3. An easy-to-clean butterfly valve according to claim 1, wherein: and sealing plates (14) are fixed at two ends of the inner wall of the valve body (1).

4. An easy-to-clean butterfly valve according to claim 1, wherein: and a sealing gasket (15) is fixedly arranged on the inner wall of the valve body (1).

5. An easy-to-clean butterfly valve according to claim 4, wherein: the sealing washer (15) is an expanded polytetrafluoroethylene sealing washer.

6. An easy-to-clean butterfly valve according to claim 1, wherein: the rear end of the first valve rod (2) is fixedly connected with the worm wheel (11).