CN218913769U

CN218913769U - Butterfly valve with silt permeation prevention mechanism

Info

Publication number: CN218913769U
Application number: CN202223112030.0U
Authority: CN
Inventors: 赵东; 刘骁卿
Original assignee: Freeway Fluid Control Shanghai Co ltd
Current assignee: Freeway Fluid Control Shanghai Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-25
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses a butterfly valve with a sediment permeation prevention mechanism, which comprises a valve body and a connecting pipe, wherein flange plates are arranged on two sides of the valve body, positioning holes are formed in the surfaces of the flange plates, a valve rod penetrates through the valve body, a butterfly plate is arranged on the surface of the valve rod, a sealing gasket is arranged in the valve body, a sealing ring is arranged on the surface of the valve rod, a clamping groove is formed in the inner wall of the valve body, a filter screen is arranged in the clamping groove, the surface of the valve body is connected with the connecting pipe, and the butterfly valve with the sediment permeation prevention mechanism is provided with the filter screen capable of filtering sediment.

Description

Butterfly valve with silt permeation prevention mechanism

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a butterfly valve with a sediment permeation prevention mechanism.

Background

The valve is called a flap valve, is a simple-structure regulating valve, can be used for a butterfly valve controlled by a switch of a low-pressure pipeline medium, and is characterized in that a valve clack of a closing member or a butterfly plate is a disc, and rotates around a valve shaft to achieve opening and closing, and the existing butterfly valve still has the following defects:

1. in the use process of the butterfly valve, the conveyed liquid often contains sediment, and the use of the butterfly valve can be influenced due to excessive sediment in the conveyed water caused by the lack of a mechanism for filtering the sediment in the existing butterfly valve;

2. the existing butterfly valves are mostly airtight and invisible, the inside of the butterfly valve cannot be observed, the inside condition of the butterfly valve cannot be known in time, and inconvenience is brought to people.

We have therefore proposed a butterfly valve with a silt penetration prevention mechanism in order to solve the problems set out above.

Disclosure of Invention

The utility model aims to provide a butterfly valve with a sediment permeation prevention mechanism, so as to solve the problems that the butterfly valve on the market at present, which is proposed by the background technology, lacks a sediment filtering mechanism and cannot observe the interior of the butterfly valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a butterfly valve with prevent silt infiltration mechanism, includes valve body and connecting pipe, the both sides of valve body are provided with the ring flange, and the locating hole has been seted up on the surface of ring flange to the inside of valve body runs through there is the valve rod, and the surface of valve rod is provided with the butterfly plate simultaneously, the inside of valve body is provided with sealed pad, and the surface of valve rod is provided with the sealing washer, and the inner wall of valve body is provided with the draw-in groove, and the inside of draw-in groove is provided with the filter screen simultaneously, the surface connection of valve body has the connecting pipe.

Preferably, the flange plate is welded with the valve body, and the flange plate is symmetrically arranged relative to the valve body, and the positioning holes are distributed in an annular array on the surface of the flange plate, so that the firmness of the later installation of the butterfly valve is ensured, and the flange plate is prevented from falling off after the butterfly valve is used for a long time, and the service life of the butterfly valve is influenced.

Preferably, the draw-in groove is the block with the filter screen and is connected, and the filter screen be the circular upper end rectangle of lower extreme structure to the size of filter screen and the size phase-match of valve body, conveniently clean the filter screen and change, be favorable to the staff to clean the valve body inside, guarantee the normal use of butterfly valve.

Preferably, the connecting pipe is connected with the valve body through a pipeline, the connecting pipe is an elliptic cylinder, the length of the long shaft of the connecting pipe corresponds to the length of the inner diameter of the valve body, the top end of the connecting pipe is provided with a transparent cover, sediment on the filter screen can be timely cleaned through the connecting pipe to observe the inside of the valve body, and the excessive influence on the conveying effect of the sediment on the filter screen is prevented.

Preferably, the sealing ring is connected with the valve body in a clamping way, and the sealing ring is clamped and connected with the valve rod, and meanwhile, the edge of the butterfly plate is provided with a sealing gasket to prevent sediment from entering, so that the valve rod is difficult to rotate, the butterfly valve switch is affected, and the service life of the butterfly valve is reduced.

Preferably, the filter screen sets up the output direction at the valve body, and the top of filter screen corresponds to be provided with the connecting pipe, makes things convenient for the staff to clean the change to the filter screen, does not need to trade whole butterfly valve down, can clean the filter screen alone, easy operation.

Compared with the prior art, the utility model has the beneficial effects that:

1. the butterfly valve with the sediment permeation prevention mechanism is provided with the filter screen capable of filtering sediment, so that water flow is effectively cleaned, the quality of the water flow is improved, later cleaning is reduced, friction between the sediment and the valve rod is effectively controlled by the sealing gasket, the service life of the valve rod is prolonged, and the practicability of the device is improved;

2. this butterfly valve with prevent silt infiltration mechanism is provided with the connecting pipe, and the connecting pipe top is provided with transparent cover simultaneously, makes things convenient for the staff work, can observe the valve body inside through the connecting pipe, in time clears up silt on the filter screen, prevents that the filter screen silt from too much influencing the conveying effect, and the filter screen is connected for the block with the draw-in groove, and simple structure changes clean filter screen more rapidly, effectively improves the functionality of butterfly valve.

Drawings

FIG. 1 is a schematic side cross-sectional view of the present utility model;

FIG. 2 is a schematic elevational view of the present utility model;

FIG. 3 is a schematic top view of the present utility model;

FIG. 4 is a schematic view of a filter screen according to the present utility model.

In the figure: 1. a valve body; 2. a flange plate; 3. positioning holes; 4. a valve stem; 5. a butterfly plate; 6. a sealing gasket; 7. a seal ring; 8. a clamping groove; 9. a filter screen; 10. and (5) connecting pipes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the butterfly valve with the silt permeation prevention mechanism comprises a valve body 1 and a connecting pipe 10, wherein flange plates 2 are arranged on two sides of the valve body 1, positioning holes 3 are formed in the surface of the flange plates 2, the flange plates 2 are in welded connection with the valve body 1, the flange plates 2 are symmetrically arranged relative to the valve body 1, the positioning holes 3 are distributed on the surface of the flange plates 2 in an annular array, the attractive appearance of the butterfly valve is improved, the use effect of the butterfly valve can be improved through the positioning holes 3, the difficulty in installation is reduced, a valve rod 4 penetrates through the valve body 1, a butterfly plate 5 is arranged on the surface of the valve rod 4, and a sealing gasket 6 is arranged in the valve body 1;

the surface of valve rod 4 is provided with sealing washer 7, sealing washer 7 is the block with valve body 1 and is connected, and sealing washer 7 is the block with be connected with valve rod 4, butterfly plate 5 edge is provided with sealing washer 6 simultaneously, can increase butterfly plate 5 and sealing washer 6's friction, improve the seal of butterfly valve, and the inner wall of valve body 1 is provided with draw-in groove 8, the inside of draw-in groove 8 is provided with filter screen 9 simultaneously, draw-in groove 8 is the block with filter screen 9 and is connected, and filter screen 9 is the structure of lower extreme circular upper end rectangle, and filter screen 9's size and valve body 1's size phase-match, improve filter screen 9 and rivers's area of contact, guarantee to carry out comprehensive filtration to the rivers of carrying, valve body 1's surface connection has connecting pipe 10;

the connecting pipe 10 is in pipe connection with the valve body 1, the connecting pipe 10 is an elliptic cylinder, the length of the long shaft of the connecting pipe 10 corresponds to the length of the inner diameter of the valve body 1, the top end of the connecting pipe 10 is provided with the transparent cover, the filter screen 9 can be taken out from the valve body 1, the structure is simple, the production difficulty of the butterfly valve is effectively controlled, the filter screen 9 is arranged in the output direction of the valve body 1, the connecting pipe 10 is correspondingly arranged above the filter screen 9, the filter screen 9 can be cleaned without detaching the true butterfly valve, the replacement and maintenance of the filter screen 9 are facilitated, the operation of workers is facilitated, and the practicability of the butterfly valve is improved.

Working principle: when using this butterfly valve with prevent silt infiltration mechanism, firstly install the butterfly valve in suitable place, then screw on the bolt in the locating hole 3 inside on ring flange 2 surface according to the diagonal again, guarantee butterfly valve and pipeline connection, then rotate valve rod 4 and drive butterfly plate 5 rotation, the rivers pass through filter screen 9 this moment, can filter the silt in the rivers, sealing washer 7 between valve rod 4 and the valve body 1 effectively prevent silt entering simultaneously, avoid silt to block up and influence valve rod 4 rotation, reduce the loss of butterfly valve, improve the life of butterfly valve, the staff can observe valve body 1 inside through connecting pipe 10 of valve body 1 upper end at last, can in time discover the problem, improve staff's work efficiency, when silt that filter screen 9 surface was piled up is too much, can follow inside draw out filter screen 9 from draw-in groove 8, clean the silt on filter screen 9 surface, easy operation.

To complete a series of work, and what is not described in detail in this specification is prior art that is well known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Butterfly valve with prevent silt infiltration mechanism, including valve body (1) and connecting pipe (10), its characterized in that:

the valve is characterized in that flange plates (2) are arranged on two sides of the valve body (1), positioning holes (3) are formed in the surfaces of the flange plates (2), a valve rod (4) penetrates through the valve body (1), a butterfly plate (5) is arranged on the surface of the valve rod (4) simultaneously, a sealing gasket (6) is arranged in the valve body (1), a sealing ring (7) is arranged on the surface of the valve rod (4), clamping grooves (8) are formed in the inner wall of the valve body (1), a filter screen (9) is arranged in the clamping grooves (8) simultaneously, and a connecting pipe (10) is connected to the surface of the valve body (1).

2. A butterfly valve with silt prevention mechanism according to claim 1, wherein: the flange plate (2) is welded with the valve body (1), the flange plate (2) is symmetrically arranged relative to the valve body (1), and the positioning holes (3) are distributed on the surface of the flange plate (2) in an annular array.

3. A butterfly valve with silt prevention mechanism according to claim 1, wherein: the clamping groove (8) is connected with the filter screen (9) in a clamping mode, the filter screen (9) is of a structure with a round lower end and a rectangular upper end, and the size of the filter screen (9) is matched with that of the valve body (1).

4. A butterfly valve with silt prevention mechanism according to claim 1, wherein: the connecting pipe (10) is connected with the valve body (1) through a pipeline, the connecting pipe (10) is an elliptic cylinder, the length of the long shaft of the connecting pipe (10) corresponds to the length of the inner diameter of the valve body (1), and a transparent cover is arranged at the top end of the connecting pipe (10).

5. A butterfly valve with silt prevention mechanism according to claim 1, wherein: the sealing ring (7) is connected with the valve body (1) in a clamping way, the sealing ring (7) is clamped and connected with the valve rod (4), and meanwhile, the edge of the butterfly plate (5) is provided with a sealing gasket (6).

6. A butterfly valve with silt prevention mechanism according to claim 1, wherein: the filter screen (9) is arranged in the output direction of the valve body (1), and a connecting pipe (10) is correspondingly arranged above the filter screen (9).