CN219317628U

CN219317628U - Butterfly valve distributed sealing structure

Info

Publication number: CN219317628U
Application number: CN202222568093.0U
Authority: CN
Inventors: 项乾; 顾海峰
Original assignee: Yancheng Precision Casting Co ltd
Current assignee: Yancheng Precision Casting Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-07-07
Anticipated expiration: 2032-09-27

Abstract

The utility model belongs to the technical field of butterfly valves, and particularly relates to a butterfly valve distributed sealing structure, which comprises a valve body, a gear box and a rotary table, wherein the gear box is arranged at the top of the valve body; the utility model discloses in order to solve current butterfly valve distributing type seal structure and in the in-process of using, only seal through valve plate and valve body junction, and valve plate and valve body area of contact are less to lead to sealing performance to the butterfly valve in the use is not good, and the rubber spare can harden for a long time, leads to the leakproofness to become bad, and inconvenient quick replacement's problem.

Description

Butterfly valve distributed sealing structure

Technical Field

The utility model relates to the technical field of butterfly valves, in particular to a distributed sealing structure of a butterfly valve.

Background

Patent search finds that, publication number: CN206309966U discloses a butterfly valve sealing ring and a butterfly valve, and relates to the field of sealing elements, wherein the butterfly valve sealing ring comprises an annular sealing part, and a first clamping part and a second clamping part which are respectively connected with the sealing part; the inner side of the sealing part is provided with a working surface, at least two sealing bulges are arranged on the working surface, and the sealing bulges extend along the circumferential direction of the working surface and form a ring shape; the first clamping part and the second clamping part are respectively annular and are arranged at the outer side of the sealing part at intervals, and at least one of the first clamping part and the second clamping part is provided with a step-shaped bulge. The butterfly valve sealing ring has better sealing effect.

The in-process that current butterfly valve distributing type seal structure was using only seals through valve plate and valve body junction, and valve plate and valve body area of contact are less to lead to sealing poor to the butterfly valve in the use, and rubber spare can harden for a long time, leads to the leakproofness to become poor, and inconvenient quick change, for solving above-mentioned problem, proposes a butterfly valve distributing type seal structure in this application.

Disclosure of Invention

Object of the utility model

In order to solve the technical problems in the background art, the utility model provides a distributed sealing structure of a butterfly valve, which aims to solve the problems that in the use process of the conventional distributed sealing structure of the butterfly valve, the joint of a valve plate and a valve body is only used for sealing, the contact area of the valve plate and the valve body is small, so that the sealing performance of the butterfly valve is poor in the use process, a rubber part is hardened for a long time, the sealing performance is poor, and quick replacement is inconvenient.

(II) technical scheme

In order to solve the technical problems, the utility model provides a distributed sealing structure of a butterfly valve, which comprises a valve body, a gear box and a rotary disc, wherein the gear box is arranged at the top of the valve body, the rotary disc is arranged at a power input end of the gear box, a sealing mechanism is rotationally arranged in an inner cavity of the valve body and comprises a valve plate, a fixed disc, a movable disc, a connecting screw rod, a fixed screw hole and a rubber sealing sleeve, the fixed disc is integrally formed on one side surface of the valve plate, the movable disc is movably connected with the other side surface of the valve plate, the connecting screw rod is integrally formed on the surface of the movable disc, the fixed screw hole is formed on one side surface of the valve plate close to the movable disc, the fixed screw hole is connected with the connecting screw rod through threads, the rubber sealing sleeve is sleeved on the surface of the valve plate, and the rubber sealing sleeve is covered on the surfaces of the fixed disc and the movable disc.

Preferably, a first semicircular limit ring and a second semicircular limit ring are symmetrically welded on two sides of the inner wall of the valve body, and the first semicircular limit ring and the second semicircular limit ring are arranged in a staggered mode.

Preferably, the first semicircular limit ring and the second semicircular limit ring are respectively provided with semicircular seal rings on the surfaces of one sides of the first semicircular limit ring and the second semicircular limit ring, which are close to the fixed disc and the movable disc, and the surfaces of the semicircular seal rings are abutted to the side walls of the rubber sealing sleeves.

Preferably, mounting seats are integrally formed on two sides of the outer wall of the valve body, and lifting lugs are integrally formed above the mounting seats.

Preferably, the surface of the gear box is connected with an overhaul window in a threaded manner, and one side of the overhaul window is provided with an oil filling nozzle.

The technical scheme of the utility model has the following beneficial technical effects:

1. according to the utility model, after the valve plate is closed, the first semicircular limit ring and the second semicircular limit ring are arranged on the inner wall of the valve body in a staggered manner and are abutted against each other, the deflection angle of the valve plate can be limited through the first semicircular limit ring and the second semicircular limit ring, the damage to the sealing mechanism caused by overlarge driving angle of the valve plate is avoided, the protection of the sealing mechanism can be improved, the rubber sealing sleeve is attached to the inner wall of the valve body, the side wall of the rubber sealing sleeve is abutted against the surface of the semicircular sealing ring, and the sealing effect of the joint of the valve plate and the valve body can be improved.

2. According to the utility model, the movable disc is in threaded connection with the fixed screw hole through the connecting screw rod, and the movable disc can be disassembled by rotating the movable disc, so that the rubber sealing sleeve can be conveniently replaced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of another view angle structure of the present utility model;

FIG. 3 is an exploded view of the seal mechanism of the present utility model;

fig. 4 is a schematic structural view of a semicircular stop collar according to the present utility model.

Reference numerals:

1. a valve body; 2. a sealing mechanism; 21. a valve plate; 22. a fixed plate; 23. a movable plate; 24. connecting a screw rod; 25. fixing the wire hole; 26. a rubber sealing sleeve; 3. a gear box; 4. a turntable; 5. a mounting base; 6. lifting lugs; 7. a semicircular limit ring; 8. a second semicircular limit ring; 9. a semicircular sealing ring; 10. an access window; 11. and an oil filling nozzle.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.

As shown in fig. 1-4, the distributed butterfly valve sealing structure provided by the utility model comprises a valve body 1, a gear box 3 and a rotary disc 4, wherein the gear box 3 is arranged at the top of the valve body 1, the rotary disc 4 is arranged at the power input end of the gear box 3, a sealing mechanism 2 is rotatably arranged in an inner cavity of the valve body 1, the sealing mechanism 2 comprises a valve plate 21, a fixed disc 22, a movable disc 23, a connecting screw 24, a fixed screw hole 25 and a rubber sealing sleeve 26, the fixed disc 22 is integrally formed on one side surface of the valve plate 21, the movable disc 23 is movably connected on the other side surface of the valve plate 21, the connecting screw 24 is integrally formed on the surface of the movable disc 23, the fixed screw hole 25 is in threaded connection with the connecting screw 24 on one side surface of the valve plate 21, the rubber sealing sleeve 26 is sleeved on the surfaces of the fixed disc 22 and the movable disc 23, and the rubber sealing sleeve 26 is wrapped on the surfaces of the fixed disc 22 and the movable disc 23.

It should be noted that, rotating the carousel 4, carousel 4 can drive gear box 3, gear box 3 can drive valve plate 21 in sealing mechanism 2 and deflect, after the valve plate 21 deflects, can make the water liquid pass through valve body 1, unidirectional rotation carousel 4 can make valve plate 21 reset to close valve body 1, wherein valve plate 21 surface cover is equipped with rubber seal cover 26, rubber seal cover 26 is laminated with valve body 1 inner wall mutually, movable dish 23 links to each other with fixed wire hole 25 screw thread through connecting lead screw 24, rotatory movable dish 23 can dismantle movable dish 23, thereby can conveniently change rubber seal cover 26.

In this embodiment, as shown in fig. 1 and fig. 4, a first semicircular stop collar 7 and a second semicircular stop collar 8 are symmetrically welded on two sides of the inner wall of the valve body 1, and the first semicircular stop collar 7 and the second semicircular stop collar 8 are arranged in a staggered manner.

It should be noted that, after the valve plate 21 is closed, the inner wall of the valve body 1 can be provided with the first semicircular limit ring 7 and the second semicircular limit ring 8 in a staggered manner to be abutted against each other, the deflection angle of the valve plate 21 can be limited through the first semicircular limit ring 7 and the second semicircular limit ring 8, the damage to the sealing mechanism 2 caused by the overlarge driving angle of the valve plate 21 is avoided, and the protection to the sealing mechanism 2 can be promoted.

In this embodiment, as shown in fig. 1 and fig. 4, the first semicircular limit ring 7 and the second semicircular limit ring 8 are respectively provided with semicircular seal rings 9 near one side surfaces of the fixed disc 22 and the movable disc 23, and the surfaces of the semicircular seal rings 9 are abutted against the side walls of the rubber sealing sleeve 26.

The side wall of the rubber sealing sleeve 26 is abutted against the surface of the semicircular sealing ring 9, so that the sealing effect of the joint of the valve plate 21 and the valve body 1 can be improved.

In this embodiment, as shown in fig. 1, the mounting seats 5 are integrally formed on two sides of the outer wall of the valve body 1, and the lifting lugs 6 are integrally formed above the mounting seats 5.

It should be noted that the lifting lug 6 of the valve body 1 can be conveniently lifted, and two sides of the valve body 1 can be fixed through the mounting seat 5.

In this embodiment, as shown in fig. 1, an inspection window 10 is screwed on the surface of the gear box 3, and an oil filling nozzle 11 is disposed on one side of the inspection window 10.

It should be noted that, through the grease nipple 11, lubricating oil can be injected into the gear box 3, the lubrication effect in the gear box 3 is promoted, and the gear box 3 can be conveniently overhauled after the overhaul window 10 is opened.

The working principle and the using flow of the utility model are as follows: rotating the rotary table 4, the rotary table 4 can drive the gear box 3, the gear box 3 can drive the valve plate 21 in the sealing mechanism 2 to deflect, after the valve plate 21 deflects, water can pass through the valve body 1, unidirectional rotation rotary table 4 can enable the valve plate 21 to reset, thereby close the valve body 1, wherein the surface sleeve of the valve plate 21 is provided with the rubber sealing sleeve 26, the two sides of the rubber sealing sleeve 26 are respectively limited through the fixed disc 22 and the movable disc 23, the inner wall of the valve body 1 can be provided with a semicircular limiting ring 7 and a semicircular limiting ring 8 which are abutted after the valve plate 21 is closed, the deflection angle of the valve plate 21 can be limited through the semicircular limiting ring 7 and the semicircular limiting ring 8, damage to the sealing mechanism 2 caused by overlarge driving angle of the valve plate 21 can be avoided, protection of the sealing mechanism 2 can be promoted, the rubber sealing sleeve 26 is attached to the inner wall of the valve body 1, the movable disc 23 is connected with the fixed screw hole 25 through the connecting screw 24, the movable disc 23 can be detached from the movable disc 23, and accordingly replacement of the rubber sealing sleeve 26 can be facilitated.

It is to be understood that the above-described embodiments of the present utility model are merely illustrative of or explanation of the principles of the present utility model and are in no way limiting of the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model. Furthermore, the appended claims are intended to cover all such changes and modifications that fall within the scope and boundary of the appended claims, or equivalents of such scope and boundary.

Claims

1. The utility model provides a butterfly valve distributed seal structure, includes valve body (1), gear box (3) and carousel (4), gear box (3) are established at valve body (1) top, the power input at gear box (3) is installed to carousel (4), a serial communication port, valve body (1) inner chamber rotation is equipped with sealing mechanism (2), sealing mechanism (2) are including valve plate (21), fixed disk (23), connection lead screw (24), fixed wire hole (25) and rubber seal cover (26), valve plate (21) one side surface integrated into one piece has fixed disk (22), valve plate (21) opposite side surface swing joint has movable disk (23), movable disk (23) surface integrated into one piece has connection lead screw (24), one side surface that valve plate (21) is close to movable disk (23) has seted up fixed wire hole (25), fixed wire hole (25) link to each other with connection lead screw (24) screw thread, valve plate (21) surface cover is equipped with rubber seal cover (26), cladding is in fixed disk (22) and movable disk (23) surface.

2. The distributed butterfly valve sealing structure according to claim 1, wherein a first semicircular limiting ring (7) and a second semicircular limiting ring (8) are symmetrically welded on two sides of the inner wall of the valve body (1), and the first semicircular limiting ring (7) and the second semicircular limiting ring (8) are arranged in a staggered mode.

3. The butterfly valve distributed sealing structure according to claim 2, wherein a semicircular sealing ring (9) is arranged on one side surface of the first semicircular limiting ring (7) and the second semicircular limiting ring (8), which are close to the fixed disc (22) and the movable disc (23) respectively, and the surface of the semicircular sealing ring (9) is abutted against the side wall of the rubber sealing sleeve (26).

4. The distributed butterfly valve sealing structure according to claim 1, wherein mounting seats (5) are integrally formed on two sides of the outer wall of the valve body (1), and lifting lugs (6) are integrally formed above the mounting seats (5).

5. The butterfly valve distributed sealing structure according to claim 1, wherein an overhaul window (10) is connected to the surface of the gear box (3) in a threaded mode, and an oil filling nozzle (11) is arranged on one side of the overhaul window (10).