CN220566599U - Three-plate butterfly valve - Google Patents

Abstract

The utility model discloses a three-piece butterfly valve which comprises a handle connecting sleeve, a handle operating connecting rod body, a butterfly plate, a butterfly cap and a check ball valve body, wherein a handle built-in connecting core is connected inside the handle connecting sleeve, handle operating connecting rod bodies are connected inside the top parts of the handle connecting sleeve and the handle built-in connecting core, built-in screws are connected in the middle part inside the handle built-in connecting core, a flange right end connector and a butterfly valve body are fixedly connected to the bottom of the handle connecting sleeve through first lengthening bolts, the flange right end connector is connected to two sides of the butterfly valve body, a built-in wear-resistant sleeve is connected inside the middle part of the butterfly valve body, and the butterfly plate and the butterfly cap are connected inside the built-in wear-resistant sleeve. According to the utility model, the check ball valve body and the butterfly valve body are of an integrated structure, so that the check ball valve body and the butterfly valve body are convenient to be assembled and disassembled integrally through the first lengthening bolt, the check ball valve is convenient to maintain, and the later interchangeability efficiency is higher, so that the check ball valve body adopts a spherical ball cavity arch design, and the flow passage is expanded.

Description

Three-plate butterfly valve

Technical Field

The utility model relates to the technical field of butterfly valve devices, in particular to a three-plate butterfly valve.

Background

The butterfly valve is also called as a flap valve, and is a regulating valve with simple structure, and the butterfly valve capable of being used for the on-off control of low-pressure pipeline medium is a valve in which a closing member (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to achieve opening and closing, and the valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive mediums, slurry, oil products, liquid metal, radioactive mediums and the like. The pipe is mainly used for cutting and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.

The lack of function of preventing water refluence in the butterfly valve structure of current use leads to consuming time and waste material to increase, and the cost improves and the water waste is too big, then current butterfly valve adopt with check valve split mounting structure, the dismouting is not enough convenient, and it is troublesome to change, lacks the usability, needs to develop urgently.

Disclosure of Invention

The present utility model is directed to a three-plate butterfly valve to solve the above-mentioned problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the three-piece butterfly valve comprises a handle connecting sleeve, a handle operating connecting rod body, a butterfly plate, a butterfly cap and a check ball valve body, wherein a handle built-in connecting core is connected to the handle connecting sleeve, a handle operating connecting rod body is connected to the handle connecting sleeve and the top of the handle built-in connecting core, a built-in screw is connected to the middle of the inside of the handle built-in connecting core, a flange right-end connector and a butterfly valve body are fixedly connected to the bottom of the handle connecting sleeve through a first lengthening screw, the flange right-end connector is connected to two sides of the butterfly valve body, a built-in wear-resistant sleeve is connected to the middle of the butterfly valve body, a butterfly plate and the butterfly cap are connected to the inside of the built-in wear-resistant sleeve, a second lengthening screw is connected to the bottom of the flange right-end connector, and the check ball valve body is fixed to the side of the flange right-end connector.

Preferably, a first sealing inner ring layer is arranged outside the joint of the built-in wear-resistant outer sleeve, the butterfly plate and the butterfly cap, and a second sealing inner ring layer is arranged outside the joint of the butterfly valve body and the flange right end connector.

Preferably, the side part of the check ball valve body is fixed with a flange left end connector through a mounting bolt, and the inside of the check ball valve body is connected with a longitudinal movable inner groove.

Preferably, one end in the longitudinal movable inner groove is provided with a valve core inner rack, and a valve core movable body is movably arranged in the longitudinal movable inner groove.

Preferably, a third sealing inner ring layer is arranged at the joint of the valve core inner frame and the valve core movable body and at the joint of the valve core inner frame, the check ball valve body and the flange left end connector.

Preferably, an elastic piece is arranged outside the middle part of the valve core movable body, and one end of the valve core movable body is provided with a positioning L-shaped movable piece.

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

(1) According to the three-plate butterfly valve, the check ball valve body and the butterfly valve body are of an integrated structure, so that the check ball valve body and the butterfly valve body are convenient to assemble and disassemble integrally through the first lengthened bolt, convenient to maintain, and higher in later interchangeability efficiency, the check ball valve body adopts a spherical ball cavity arch design, a flow channel is expanded, and water passing efficiency and speed are improved;

(2) According to the three-plate butterfly valve, after the water pump is started, pressurized water is flushed out of the valve core movable body arranged in the check ball valve body and the longitudinal movable inner groove, the elastic piece on the valve core movable body is subjected to compressibility, the distance between the longitudinal running of the valve core movable body in the longitudinal movable inner groove is controlled by the positioning L-shaped movable piece, the valve core movable body is flushed out, the water can be accumulated in the inner cavity of the whole check ball valve body, if the handle arranged on the butterfly valve body is operated to rotate to a position consistent with the water flow direction, the butterfly plate and the butterfly cap are enabled to be in an open state, water can flow through the butterfly valve body and flow into the next part, if the water pump stops running, the valve core movable body arranged on the check ball valve body can be reset under the elastic action of the elastic piece, and the valve core movable body and the valve core inner frame are sealed through the three third sealing inner ring layers, so that the phenomenon that the pressurized water in the check ball valve body cannot flow backwards is realized, and the use stability of the valve body is improved;

(3) This kind of three-plate butterfly valve through the setting at first sealed inner circle layer, sealed inner circle layer of second and sealed inner circle layer of third, improves the face that adjacent contact and is in complete sealing state, effectively avoids out the problem of water leakage and backward flow water, improves the stability that the valve body is whole to be used, greatly increased its durability.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1B according to the present utility model;

fig. 4 is an enlarged view of the structure of fig. 1 at C according to the present utility model.

In the figure: 1. the handle is connected with the outer sleeve; 2. the handle is internally provided with a connecting core; 3. the handle operates the connecting rod body; 4. a built-in screw; 5. a first extension bolt; 6. a flange right end connector; 7. a butterfly valve body; 8. a wear-resistant jacket is arranged in the inner part; 9. a first seal inner ring layer; 10. a butterfly plate and a butterfly cap; 11. a second seal inner ring layer; 12. a second extension bolt; 13. a check ball valve body; 14. installing a bolt; 15. a flange left end connector; 16. longitudinally movable inner tanks; 17. a valve core inner rack; 18. a valve core movable body; 19. a third seal inner ring layer; 20. an elastic member; 21. positioning the L-shaped movable piece.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. 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, an embodiment of the present utility model is provided: the three-piece butterfly valve comprises a handle connecting sleeve 1, a handle operating connecting rod body 3, a butterfly plate, a butterfly cap 10 and a ball check valve body 13, wherein a handle built-in connecting core 2 is connected inside the handle connecting sleeve 1, the handle operating connecting rod body 3 is connected inside the top of the handle connecting sleeve 1 and the handle built-in connecting core 2, a built-in screw 4 is connected in the middle of the inside of the handle built-in connecting core 2, a flange right end connector 6 and a butterfly valve body 7 are fixedly connected to the bottom of the handle connecting sleeve 1 through a first lengthening bolt 5, and the butterfly valve body is convenient to assemble and disassemble through the first lengthening bolt 5;

the flange right end connector 6 is connected to two sides of the butterfly valve body 7, a built-in wear-resistant outer sleeve 8 is connected in the middle of the butterfly valve body 7, a first sealing inner ring layer 9 is arranged outside the joint of the built-in wear-resistant outer sleeve 8, the butterfly plate and the butterfly cap 10, a second sealing inner ring layer 11 is arranged outside the joint of the butterfly valve body 7 and the flange right end connector 6, and the first sealing inner ring layer 9, the second sealing inner ring layer 11 and the third sealing inner ring layer 19 are arranged, so that the adjacent contact surfaces are in a complete sealing state, the problems of water leakage and backflow are effectively avoided, and the integral use stability of the valve body is improved;

the inside of built-in stand wear and tear overcoat 8 is connected with butterfly plate and butterfly cap 10, be connected with second extension bolt 12 in the bottom of flange right-hand member connector 6, the lateral part of flange right-hand member connector 6 is fixed with the ball check valve body 13, and the ball check valve body 13 adopts integrated into one piece structure with the butterfly valve body 7, and is convenient whole.

The side of the ball check valve body 13 is fixed with a flange left end connector 15 through a mounting bolt 14, the inside of the ball check valve body 13 is connected with a longitudinal movable inner groove 16, the ball check valve body 13 adopts a spherical ball cavity arch design, a flow passage is expanded, and the water passing efficiency and speed are improved.

One end in the longitudinally movable inner groove 16 is provided with a valve core inner rack 17, and the inside of the longitudinally movable inner groove 16 is movably provided with a valve core movable body 18.

The third sealing inner ring layers 19 are arranged at the joint of the valve core inner frame 17 and the valve core movable body 18 and the joint of the valve core inner frame 17, the check ball valve body 13 and the flange left end connecting body 15, the pressure of the water inlet end of the butterfly valve body 7 is reduced, the valve core movable body 18 arranged on the check ball valve body 13 can be reset under the elastic action of the elastic piece 20, and the valve core movable body 18 and the valve core inner frame 17 are sealed through the three third sealing inner ring layers 19, so that the phenomenon that the pressurized water in the cavity of the check ball valve body 13 cannot flow backwards is realized.

An elastic piece 20 is arranged outside the middle part of the valve core movable body 18, and one end of the valve core movable body 18 is provided with a positioning L-shaped movable piece 21.

When the embodiment of the application is used, the following steps are adopted: after the water pump is started, pressurized water is flushed out of a valve core movable body 18 arranged in the check ball valve body 13 and the longitudinal movable inner groove 16, an elastic piece 20 on the valve core movable body 18 is compressed, the distance between the longitudinal running of the valve core movable body 18 in the longitudinal movable inner groove 16 is controlled by a positioning L-shaped movable piece 21, the water can be fully accumulated in the inner cavity of the whole check ball valve body 13 after the valve core movable body 18 is flushed out, if a handle arranged on the butterfly valve body 7 is operated, the connecting rod body 3 is movably rotated to a position consistent with the water flow direction, so that the butterfly plate and the butterfly cap 10 are turned into an open state, water can flow through the butterfly valve body 7 and flow into the next component, and if the water pump stops running, the valve core movable body 18 arranged on the check ball valve body 13 can be reset under the elastic action of the elastic piece 20 due to the fact that the valve core movable body 18 and the valve core inner frame 17 are sealed through three third sealing inner ring layers 19, and the phenomenon that pressurized water in the cavity of the check ball valve body 13 cannot flow backwards is realized.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The three-piece butterfly valve is characterized by comprising a handle connecting sleeve (1), a handle operating connecting rod body (3), a butterfly plate, a butterfly cap (10) and a ball check valve body (13), wherein the handle connecting sleeve (1) is internally connected with a handle built-in connecting core (2), the handle connecting sleeve (1) and the top of the handle built-in connecting core (2) are internally connected with the handle operating connecting rod body (3), the middle part of the inside of the handle built-in connecting core (2) is connected with a built-in screw (4), the bottom of the handle connecting sleeve (1) is fixedly connected with a flange right end connecting body (6) and a butterfly valve body (7) through a first lengthening screw (5), the flange right end connecting body (6) is connected to two sides of the butterfly valve body (7), the middle part of the butterfly valve body (7) is internally connected with a built-in wear-resistant sleeve (8), the inside of the built-in wear-resistant sleeve (8) is connected with the butterfly plate and the butterfly cap (10), the bottom of the flange right end connecting body (6) is internally connected with a second lengthening screw (12), and the side part of the flange right end connecting body (6) is fixedly provided with the ball check valve body (13).

2. The three-plate butterfly valve of claim 1, wherein: the inner butterfly valve is characterized in that a first sealing inner ring layer (9) is arranged outside the joint of the built-in wear-resistant outer sleeve (8) and the butterfly plate and the butterfly cap (10), and a second sealing inner ring layer (11) is arranged outside the joint of the butterfly valve body (7) and the flange right end connecting body (6).

3. The three-plate butterfly valve of claim 1, wherein: the side part of the ball check valve body (13) is fixed with a flange left end connector (15) through a mounting bolt (14), and the inside of the ball check valve body (13) is connected with a longitudinal movable inner groove (16).

4. A three-plate butterfly valve according to claim 3, wherein: one end in the longitudinal movable inner groove (16) is provided with a valve core inner rack (17), and a valve core movable body (18) is movably arranged in the longitudinal movable inner groove (16).

5. The three-plate butterfly valve of claim 4, wherein: the third sealing inner ring layers (19) are arranged at the joint of the valve core inner frame (17) and the valve core movable body (18) and the joint of the valve core inner frame (17), the check ball valve body (13) and the flange left end connecting body (15).

6. The three-plate butterfly valve of claim 5, wherein: an elastic piece (20) is arranged outside the middle of the valve core movable body (18), and one end of the valve core movable body (18) is provided with a positioning L-shaped movable piece (21).