CN214534543U

CN214534543U - Hard seal butterfly valve of two-way pressure-bearing

Info

Publication number: CN214534543U
Application number: CN202120655089.0U
Authority: CN
Inventors: 陈忠寿
Original assignee: Comsat Automation Group Co ltd
Current assignee: Comsat Automation Group Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-10-29
Anticipated expiration: 2031-03-31

Abstract

The utility model discloses a hard sealed butterfly valve of two-way pressure-bearing, including valve body and lug, the valve body bottom is fixed with the installation piece, valve body internal connection has the pivot, pivot one side is connected with the pressure-bearing piece, pressure-bearing piece one side is seted up flutedly, be connected with the slider between guide bar and the two-way threaded rod, the pressure-bearing piece all is provided with two sets ofly with the recess, and two sets of pressure-bearing pieces are about the central symmetric distribution of pivot. This butterfly valve sealed firmly of two-way pressure-bearing, be provided with recess and clamp splice, make the bearing piece rotatory block the back with both sides rivers rotating the pivot, can rotate two-way threaded rod, two-way threaded rod rotates and drives the slider and remove along the guide bar, the slider removes and drives the clamp splice removal, the clamp splice removal blocks into inside the recess, it is spacing to carry out the bearing piece, when pressure differential appears in the both sides of bearing piece like this, the clamp splice can prevent the pressure that the bearing piece receives water and rotatory leaking that causes, convenient to use.

Description

Hard seal butterfly valve of two-way pressure-bearing

Technical Field

The utility model relates to a water valve technical field specifically is a butterfly valve is sealed firmly to two-way pressure-bearing.

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 with a closing member which is a disc and rotates around a valve shaft to open and close.

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. Along with the development of science and technology, the two-way pressure-bearing hard seal butterfly valve has developed to a great extent, and its development has brought very big facility when carrying out two-way pressure-bearing to the hard seal butterfly valve for people, and its kind and quantity are also increasing day by day.

The two-way pressure-bearing hard seal butterfly valve in the market at present is mostly inconvenient to use, the pressure in two directions can be borne by the two-way pressure-bearing butterfly valve pressure-bearing piece, the pressure difference between two sides easily makes the pressure-bearing piece skew cause leak, it is not convenient for seal, be not convenient for pipe connection, consequently will improve present two-way pressure-bearing hard seal butterfly valve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hard sealed butterfly valve of two-way pressure-bearing to solve the hard sealed butterfly valve of two-way pressure-bearing on the existing market that the above-mentioned background art provided and be mostly inconvenient for use, the butterfly valve pressure-bearing piece of two-way pressure-bearing will bear the pressure of two directions, and the pressure differential of both sides makes the pressure-bearing piece skew cause leak easily, is not convenient for seal, the problem of the pipe connection of being not convenient for.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a hard sealed butterfly valve of two-way pressure-bearing, includes valve body and lug, the valve body bottom is fixed with the installation piece, valve body internal connection has the pivot, pivot one side is connected with the pressure-bearing piece, bearing piece one side is seted up flutedly, valve body internal connection has two-way threaded rod, is close to two-way threaded rod valve body internal connection has the guide bar, be connected with the slider between guide bar and the two-way threaded rod, the pressure-bearing piece all is provided with two sets ofly with the recess, and two sets of pressure-bearing piece about the central symmetric distribution of pivot.

Preferably, one side of the sliding block is connected with a clamping block, one side of the clamping block, which is close to the groove, is connected with a sealing strip, and two sides of the valve body are both connected with first connecting pipes.

Preferably, a sealing ring is connected inside the first connecting pipe, a threaded sleeve is connected on the surface of the first connecting pipe, a notch is formed in each of the threaded sleeve and one side of the first connecting pipe, a second connecting pipe is embedded inside the first connecting pipe, and the lug close to the notch is connected to one side of the second connecting pipe.

Preferably, the sliding block is in threaded connection with the bidirectional threaded rod, and the sliding block is in sliding connection with the guide rod.

Preferably, the clamping block and the sealing strip are both arc-shaped, and the sealing strip and the sealing ring are both made of elastic rubber materials.

Preferably, the second connecting pipe and the lug are of an integral structure, the second connecting pipe and the first connecting pipe are in sliding connection, the lug and the notch are in sliding connection, and the first connecting pipe and the thread sleeve are in threaded connection.

Compared with the prior art, the beneficial effects of the utility model are that: this two-way pressure-bearing butterfly valve sealed firmly:

1. the groove and the clamping block are arranged, the bidirectional threaded rod can be rotated after the rotating shaft is rotated to enable the pressure-bearing piece to rotate to block water flows on two sides, the bidirectional threaded rod rotates to drive the sliding block to move along the guide rod, the sliding block moves to drive the clamping block to move, the clamping block moves to be clamped into the groove to limit the pressure-bearing piece, and therefore when pressure difference occurs on two sides of the pressure-bearing piece, the clamping block can prevent the pressure-bearing piece from rotating under the pressure of water to cause water leakage and the use is convenient;

2. the second connecting pipe and the convex block are arranged, the convex block on one side of the second connecting pipe is aligned to the notch on one side of the first connecting pipe, then the second connecting pipe is inserted into the first connecting pipe, meanwhile, the convex block on one side of the second connecting pipe can slide relative to the notch, after the convex block slides through the notch on one side of the threaded sleeve, the threaded sleeve is rotated, the threaded sleeve and the first connecting pipe can slide in a threaded manner, the threaded sleeve rotates to enable the notch and the convex block to be staggered, the convex block is limited to move reversely, so that the second connecting pipe is prevented from being pulled out of the first connecting pipe, and the pipeline connection is facilitated;

3. be provided with sealing strip and sealing washer, when rotating two-way threaded rod and making the clamp splice remove inside the recess, the sealing strip of clamp splice one side can extrude the bearing piece, the sealing strip of elastic rubber material receives the extrusion can be deformed and fill the gap between bearing piece and the clamp splice, prevent water leakage, can extrude the lug when the thread bush screw thread slides equally, the lug atress drives the second connecting pipe and slides in first connecting pipe, the tip extrusion sealing washer of up to the second connecting pipe, the sealing washer of elastic rubber material receives the extrusion and can fill the gap of second connecting pipe between first connecting pipe equally, be convenient for improve the leakproofness.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the present invention;

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

FIG. 3 is a schematic side view of the clamping block of the present invention;

fig. 4 is a schematic view of the top view structure of the slider of the present invention.

In the figure: 1. a valve body; 2. mounting blocks; 3. a rotating shaft; 4. a pressure bearing sheet; 5. a groove; 6. a bidirectional threaded rod; 7. a guide bar; 8. a slider; 9. a clamping block; 10. a sealing strip; 11. a first connecting pipe; 12. a seal ring; 13. a threaded sleeve; 14. a notch; 15. a second connecting pipe; 16. and (4) a bump.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a bidirectional pressure-bearing hard seal butterfly valve comprises a valve body 1, an installation block 2, a rotating shaft 3, a pressure-bearing sheet 4, a groove 5, a bidirectional threaded rod 6, a guide rod 7, a sliding block 8, a clamping block 9, a sealing strip 10, a first connecting pipe 11, a sealing ring 12, a threaded sleeve 13, a notch 14, a second connecting pipe 15 and a convex block 16, wherein the installation block 2 is fixed at the bottom of the valve body 1, the rotating shaft 3 is connected inside the valve body 1, the pressure-bearing sheet 4 is connected to one side of the rotating shaft 3, the groove 5 is formed in one side of the pressure-bearing sheet 4, the bidirectional threaded rod 6 is connected inside the valve body 1, the guide rod 7 is connected inside the valve body 1 close to the bidirectional threaded rod 6, the sliding block 8 is connected between the guide rod 7 and the bidirectional threaded rod 6, the sliding block 8 is in threaded connection with the bidirectional threaded rod 6, the sliding block 8 is in sliding connection with the guide rod 7, the bidirectional threaded rod 6 rotates to drive the sliding block 8 to move along the guide rod 7, the sliding block 8 moves to drive the clamping block 9 to move, the clamping block 9 is movably clamped into the groove 5 to limit the pressure-bearing sheet 4, the clamping block 9 is connected to one side of the sliding block 8, the clamping block 9 and the sealing strip 10 are both arc-shaped, the sealing strip 10 and the sealing ring 12 are both made of elastic rubber, when the clamping block 9 moves into the groove 5 by rotating the bidirectional threaded rod 6, the sealing strip 10 on one side of the clamping block 9 can extrude the pressure-bearing sheet 4, the sealing strip 10 made of elastic rubber deforms under extrusion and fills a gap between the pressure-bearing sheet 4 and the clamping block 9 to prevent water leakage, the sealing strip 10 is connected to one side of the clamping block 9 close to the groove 5, the first connecting pipes 11 are connected to two sides of the valve body 1, the sealing ring 12 is connected to the inside of the first connecting pipes 11, the thread sleeves 13 are connected to the surfaces of the first connecting pipes 11, and gaps 14 are formed between the thread sleeves 13 and one side of the first connecting pipes 11, a second connecting pipe 15 is embedded in the first connecting pipe 11, the second connecting pipe 15 and the projection 16 are integrated, the second connecting pipe 15 and the first connecting pipe 11 are connected in a sliding manner, and the projection 16 is slidably connected with the notch 14, the first connecting pipe 11 is threadedly connected with the threaded sleeve 13, the second connecting pipe 15 is inserted into the first connecting pipe 11, meanwhile, the projection 16 on one side of the second connecting pipe 15 slides relative to the notch 14, and after the projection 16 slides through the notch 14 on one side of the threaded sleeve 13, the threaded sleeve 13 is rotated, the threaded sleeve 13 can slide with the first connecting pipe 11 in a threaded manner, the threaded sleeve 13 is rotated to enable the gap 14 and the lug 16 to be staggered, the pipeline connection is convenient, the lug 16 close to the gap 14 is connected to one side of the second connecting pipe 15, the pressure-bearing pieces 4 and the grooves 5 are both provided with two groups, and the two groups of pressure-bearing pieces 4 are symmetrically distributed about the center of the rotating shaft 3.

The working principle is as follows: when the bidirectional pressure-bearing hard seal butterfly valve is used, firstly, the two-way threaded rod 6 can be rotated after the bearing plate 4 rotates to block water flow on two sides by rotating the rotating shaft 3, the two-way threaded rod 6 rotates to drive the slide block 8 to move along the guide rod 7, the slide block 8 moves to drive the clamping block 9 to move, the clamping block 9 moves to be clamped into the groove 5 to limit the bearing plate 4, thus when pressure difference occurs on two sides of the bearing plate 4, the clamping block 9 can prevent the bearing plate 4 from rotating by the pressure of the water to cause water leakage, the use is convenient, then, the lug 16 on one side of the second connecting pipe 15 is aligned to the notch 14 on one side of the first connecting pipe 11, then the second connecting pipe 15 is inserted into the first connecting pipe 11, meanwhile, the lug 16 on one side of the second connecting pipe 15 can slide relative to the notch 14, after the lug 16 slides over the notch 14 on one side of the threaded sleeve 13, the threaded sleeve 13 can slide with the first connecting pipe 11 through threads, the threaded sleeve 13 rotates to make the notch 14 and the projection 16 dislocate, and limit the projection 16 to move reversely so as to prevent the second connecting pipe 15 from being pulled out of the first connecting pipe 11, thereby facilitating the pipe connection, when the two-way threaded rod 6 is rotated to enable the clamping block 9 to move into the groove 5, the sealing strip 10 on one side of the clamping block 9 can extrude the pressure-bearing sheet 4, the sealing strip 10 made of elastic rubber can deform under extrusion and fill a gap between the pressure-bearing sheet 4 and the clamping block 9, water leakage is prevented, the convex block 16 can be extruded when the thread sleeve 13 slides in a threaded manner, the convex block 16 is stressed to drive the second connecting pipe 15 to slide in the first connecting pipe 11 until the end of the second connecting pipe 15 extrudes the sealing ring 12, the sealing ring 12 made of elastic rubber can fill the gap between the first connecting pipe 11 and the second connecting pipe 15 under extrusion, and sealing performance is improved.

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 modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a two-way pressure-bearing butterfly valve sealed firmly, includes valve body (1) and lug (16), valve body (1) bottom is fixed with installation piece (2), valve body (1) internal connection has pivot (3), pivot (3) one side is connected with pressure-bearing piece (4), its characterized in that: bearing piece (4) one side is seted up fluted (5), valve body (1) internal connection has two-way threaded rod (6), is close to two-way threaded rod (6) valve body (1) internal connection has guide bar (7), be connected with slider (8) between guide bar (7) and two-way threaded rod (6), bearing piece (4) all are provided with two sets ofly with recess (5), and two sets of bearing piece (4) are about the central symmetric distribution of pivot (3).

2. The butterfly valve of claim 1, wherein: slider (8) one side is connected with clamp splice (9), is close to recess (5) clamp splice (9) one side is connected with sealing strip (10), the both sides of valve body (1) all are connected with first connecting pipe (11).

3. The butterfly valve of claim 2, wherein: the sealing ring is connected to the inner portion of the first connecting pipe (11), the threaded sleeve (13) is connected to the surface of the first connecting pipe (11), a notch (14) is formed in one side of the threaded sleeve (13) and one side of the first connecting pipe (11), the second connecting pipe (15) is embedded in the first connecting pipe (11), and the convex block (16) close to the notch (14) is connected to one side of the second connecting pipe (15).

4. The butterfly valve of claim 1, wherein: the sliding block (8) is in threaded connection with the bidirectional threaded rod (6), and the sliding block (8) is in sliding connection with the guide rod (7).

5. The butterfly valve of claim 2, wherein: the clamping block (9) and the sealing strip (10) are both arc-shaped, and the sealing strip (10) and the sealing ring (12) are both made of elastic rubber.

6. A bi-directional pressure-bearing hard seal butterfly valve according to claim 3, wherein: the second connecting pipe (15) and the lug (16) are of an integral structure, the second connecting pipe (15) and the first connecting pipe (11) are in sliding connection, the lug (16) and the notch (14) are in sliding connection, and the first connecting pipe (11) and the threaded sleeve (13) are in threaded connection.