CN211975912U

CN211975912U - Hard sealing butterfly valve

Info

Publication number: CN211975912U
Application number: CN202020524365.5U
Authority: CN
Inventors: 郑博; 程文斌; 程祖梁
Original assignee: Jiute Valve Co ltd
Current assignee: Jiute Valve Group Co.,Ltd.
Priority date: 2020-04-11
Filing date: 2020-04-11
Publication date: 2020-11-20
Anticipated expiration: 2030-04-11

Abstract

The utility model discloses a hard seal butterfly valve, including the valve pipe, the top fixedly connected with drive mechanism of valve pipe, the inside of valve pipe is inlayed and is equipped with the center pin, and center pin one side is provided with the valve plate, and the valve plate passes through the transmission between sleeve pipe and the center pin and is connected, the mounting groove has all been seted up to the both sides inner wall of valve pipe, and two mounting grooves put central symmetry setting about the vertical central point of valve pipe, the inboard of two mounting grooves is provided with the rubber circle, and the rubber circle all through solid fixed ring and valve between the pipe fixed connection. The utility model discloses in, when closing the valve through drive mechanism, carry out anticlockwise rotation through center pin transmission valve plate, when the valve plate rotates to the level, contact between one of them side border position department and the rubber circle, contact between the opposite side border position department of central symmetry and another rubber circle to realize the good sealing of valve plate both sides, effectively reduce the possibility that rivers flow through the gap that probably exists between valve plate and the valve pipe.

Description

Hard sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field especially relates to hard seal butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. 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 butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.

The existing butterfly valve sealing element is mostly arranged on one side of the valve, one side of the existing butterfly valve sealing element can conflict with the sealing ring when the valve plate rotates, the sealing ring can be influenced in the long-term use process, the existing butterfly valve sealing element is deformed, and therefore the sealing performance of the butterfly valve is enabled to slide downwards, and the service life of the butterfly valve is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the hard seal butterfly valve is provided for solving the problem that a rubber ring is easy to deform in the use process of the existing butterfly valve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

hard seal butterfly valve, including the valve pipe, the top fixedly connected with drive mechanism of valve pipe, the inside of valve pipe is inlayed and is equipped with the center pin, and center pin one side is provided with the valve plate, and the valve plate passes through the transmission between sleeve pipe and the center pin and is connected, the mounting groove has all been seted up to the both sides inner wall of valve pipe, and two mounting grooves put central symmetry setting about the vertical central point of valve pipe, the inboard of two mounting grooves is provided with the rubber circle, and the rubber circle all through solid fixed ring and valve between the pipe fixed connection.

As a further description of the above technical solution:

rubber circle and solid fixed ring all are the semicircle ring structure, and the external diameter of rubber circle and solid fixed ring is greater than valve pipe internal diameter, and the internal diameter is less than valve pipe internal diameter.

As a further description of the above technical solution:

the bolt that solid fixed ring's inside was inlayed and is equipped with the annular array and set up, and solid fixed ring passes through the bolt and is fixed in the inside of valve pipe with the rubber circle.

As a further description of the above technical solution:

the both ends of center pin all fixedly connected with sleeve pipe, and the sleeve pipe inlays and establishes in the inside of valve pipe to rotate between sleeve pipe and the valve pipe and be connected.

As a further description of the above technical solution:

the bottom cover of sleeve pipe is equipped with the sealing ring, and rotates between sealing ring and the sleeve pipe to be connected.

As a further description of the above technical solution:

the horizontal section of the valve pipe is of an I-shaped structure, and bolt holes are annularly arrayed on the vertical end walls on the two sides of the valve pipe.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses in, when closing the valve through drive mechanism, carry out anticlockwise rotation through center pin transmission valve plate, when the valve plate rotates to the level, contact between one of them side border position department and the rubber circle, contact between the opposite side border position department of central symmetry and another rubber circle to realize the good sealing of valve plate both sides, effectively reduce the possibility that rivers flow through the gap that probably exists between valve plate and the valve pipe.

Drawings

Fig. 1 shows a front view provided in accordance with an embodiment of the present invention;

fig. 2 illustrates a partial cross-sectional view provided in accordance with an embodiment of the present invention;

fig. 3 illustrates a horizontal cross-sectional view provided in accordance with an embodiment of the present invention;

illustration of the drawings:

1. a transmission mechanism; 2. a valve tube; 3. a valve plate; 4. a central shaft; 5. a sleeve; 6. mounting grooves; 7. a fixing ring; 8. a bolt; 9. a rubber ring; 10. bolt holes; 11. and (4) a sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: hard seal butterfly valve, including valve pipe 2, valve pipe 2's top fixedly connected with drive mechanism 1, valve pipe 2's inside is inlayed and is equipped with center pin 4, center pin 4 one side is provided with valve plate 3, and valve plate 3 is connected through the transmission between sleeve pipe 5 and the center pin 4, sleeve pipe 5 is provided with two, and two sleeve pipes 5 are located center pin 4's both ends respectively, mounting groove 6 has all been seted up to valve pipe 2's both sides inner wall, and two mounting grooves 6 set up about the vertical central point of valve pipe 2 puts central symmetry, the inboard of two mounting grooves 6 is provided with rubber circle 9, and rubber circle 9 all through solid fixed ring 7 and valve pipe between 2 fixed connection.

Specifically, as shown in fig. 1-3, rubber ring 9 and solid fixed ring 7 all are the semicircle ring structure, and the external diameter of rubber ring 9 and solid fixed ring 7 is greater than the valve pipe 2 internal diameter, and the internal diameter is less than the valve pipe 2 internal diameter, guarantee with the valve plate 3 between closely laminating, the inside of solid fixed ring 7 is inlayed and is equipped with the bolt 8 that the annular array set up, and solid fixed ring 7 is fixed in the inside of valve pipe 2 with rubber ring 9 through bolt 8.

Specifically, as shown in fig. 1 and 2, the sleeve 5 is fixedly connected to both ends of the central shaft 4, the sleeve 5 is embedded in the valve tube 2, the sleeve 5 is rotatably connected to the valve tube 2, the bottom end of the sleeve 5 is sleeved with the sealing ring 11, and the sealing ring 11 is rotatably connected to the sleeve 5.

Specifically, as shown in fig. 3, the horizontal section of the valve tube 2 is in an i-shaped structure, and bolt holes 10 are annularly arrayed on the vertical end walls on both sides of the valve tube 2 and used for being fixedly connected with an external pipeline.

The working principle is as follows: when the valve plate is used, the central shaft 4 is driven through the transmission mechanism 1, so that the central shaft 4 drives the valve plate 3 through the sleeve 5, the valve plate 3 rotates around the central shaft 4, and when the valve plate 3 rotates clockwise, the end walls on the two sides of the valve plate 3 are not attached to the rubber ring 9, so that water flow controlled by the valve plate 3 can flow out; when closing the valve through drive mechanism 1, carry out anticlockwise rotation through center pin 4 transmission valve plate 3, when valve plate 3 rotated to the level, contact between one of them side edge position department and the rubber circle 9, contact between the opposite side edge position department of centrosymmetry and another rubber circle 9 to realize the good sealing of valve plate 3 both sides, effectively reduce rivers through the possibility that the gap that probably exists flows between valve plate 3 and the valve pipe 2.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Hard seal butterfly valve, including valve pipe (2), top fixedly connected with drive mechanism (1) of valve pipe (2), the inside of valve pipe (2) is inlayed and is equipped with center pin (4), and center pin (4) one side is provided with valve plate (3), and valve plate (3) are connected through the transmission between sleeve pipe (5) and center pin (4), its characterized in that, mounting groove (6) have all been seted up to the both sides inner wall of valve pipe (2), and two mounting grooves (6) put central symmetry setting about the vertical central point of valve pipe (2), the inboard of two mounting grooves (6) is provided with rubber circle (9), and rubber circle (9) all through fixed ring (7) and valve pipe (2) between fixed connection.

2. The hard seal butterfly valve according to claim 1, wherein the rubber ring (9) and the fixing ring (7) are both semi-circular ring structures, and the outer diameter of the rubber ring (9) and the fixing ring (7) is larger than the inner diameter of the valve tube (2) and the inner diameter is smaller than the inner diameter of the valve tube (2).

3. The hard seal butterfly valve according to claim 2, characterized in that the fixing ring (7) has bolts (8) embedded therein in an annular array, and the fixing ring (7) fixes the rubber ring (9) inside the valve tube (2) by means of the bolts (8).

4. The hard seal butterfly valve according to claim 1, wherein a sleeve (5) is fixedly connected to each end of the central shaft (4), the sleeve (5) is embedded inside the valve tube (2), and the sleeve (5) is rotatably connected with the valve tube (2).

5. A hard-sealing butterfly valve according to claim 4, characterised in that the bottom end of the sleeve (5) is sleeved with a sealing ring (11), and the sealing ring (11) is rotatably connected with the sleeve (5).

6. The hard seal butterfly valve according to claim 1, characterized in that the valve tube (2) has an I-shaped horizontal cross section, and bolt holes (10) are annularly arrayed on both vertical end walls of the valve tube (2).