CN217653251U

CN217653251U - Butterfly plate for high-sealing butterfly valve

Info

Publication number: CN217653251U
Application number: CN202220995630.7U
Authority: CN
Inventors: 金乐; 金建东; 张珍妮
Original assignee: Xianju Hongxing Machinery Casting Co ltd
Current assignee: Xianju Hongxing Machinery Casting Co ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-10-25
Anticipated expiration: 2032-04-27

Abstract

The utility model provides a butterfly plate for high leakproofness butterfly valve, including the valve body, the pinhole has been seted up in top and the bottom of valve body run through, and the both sides fixedly connected with flange joint dish of valve body, the mounting hole has been seted up on flange joint dish's surface, and the through-hole has been seted up at the middle part of valve body, and the inside of through-hole is equipped with the valve plate, and the connecting hole has been seted up at the both ends of valve plate, and the inner wall mid-mounting of valve body has sealing mechanism, and drive mechanism is installed at the top of valve body, the utility model discloses: through the sealing mechanism who is equipped with, the annular mounting groove has been seted up at the valve body inner wall, the annular mounting groove is inside to inlay and is equipped with the sealing ring, the sealing ring can eliminate installation clearance between traditional valve plate and the valve body, the sealing ring has better deformation and wear resistance simultaneously, the annular groove is seted up to the sealing ring inner wall and is used for placing the valve plate when the valve plate is closed, form a sealed contact simultaneously through the rubber pad of seting up the annular groove extension at the valve plate rotate the annular groove inside back and valve plate between the surface, can prevent to reveal effectively.

Description

Butterfly plate for high-sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve technical field specifically is a butterfly plate for high leakproofness 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 valve clack or a butterfly plate of a closing member 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 valve plate and the valve body of the existing butterfly valve are controlled to be opened or closed in a simple rotating installation mode, the valve plate and the valve body are abraded seriously after long-time use, leakage does not occur due to poor sealing, sealing measures are lacked at the joint of the valve rod penetrating valve body and the valve plate, leakage is caused to occur, and use is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high leakproofness butterfly plate for butterfly valve to solve the valve plate and the valve body department of current butterfly valve that above-mentioned background art provided and control with simple rotation mounting means and open or close, wear and tear comparatively seriously lead to sealed not tight problem that appears leaking between long-time back valve plate and the valve body.

In order to achieve the above object, the utility model provides a following technical scheme: a butterfly plate for a high-sealing butterfly valve comprises a valve body, wherein pin holes are formed in the top and the bottom of the valve body in a penetrating mode, flange connecting discs are fixedly connected to two sides of the valve body, mounting holes are formed in the surfaces of the flange connecting discs, a through hole is formed in the middle of the valve body, a valve plate is arranged inside the through hole, connecting holes are formed in two ends of the valve plate, a sealing mechanism is installed in the middle of the inner wall of the valve body, and a transmission mechanism is installed at the top of the valve body;

sealing mechanism is including seting up the annular mounting groove at the valve body inner wall, the inside sealed lantern ring that is equipped with that inlays of annular mounting groove.

As a further description of the present invention: the inner wall of the sealing lantern ring is provided with an annular groove, two sides of the sealing lantern ring extend out of the two rubber pads through the arranged annular groove, and a circular hole is formed in the inner wall of the sealing lantern ring corresponding to the connecting hole.

As a further description of the present invention: the valve rod at the valve body top is installed including rotating to drive mechanism, the top fixed mounting of valve rod has the turbine the worm is installed in rotation of valve body top one side, the worm is connected with the turbine meshing, the one end fixed mounting of worm has the handle.

For further description of the present invention: the bottom of valve rod wears the bolt hole and the circular port is finally connected in the connecting hole that the valve plate top was seted up, the inside interlude of bottom pinhole of valve body is connected with the trace, the trace interlude circular port and connect the connecting hole middle part of seting up the valve plate bottom.

As a further description of the invention: the valve plate is rotatably installed in an annular groove formed in the inner wall of the sealing sleeve ring through a valve rod and a linkage rod.

As a further description of the invention: and the middle parts of the valve rod and the linkage rod are both sleeved with expansion water stop rings.

As a further description of the invention: the pneumatic actuator is fixedly mounted at the top end of the valve body, a pneumatic connector is fixedly connected to one side of the pneumatic actuator, and the rotating end of the pneumatic actuator is fixedly connected with the valve rod.

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

(1) Through the arranged sealing mechanism, the inner wall of the valve body is provided with an annular mounting groove, a sealing sleeve ring is embedded in the annular mounting groove, the sealing sleeve ring can eliminate a mounting gap between the traditional valve plate and the valve body, meanwhile, the sealing sleeve ring has better deformation and wear resistance, the inner wall of the sealing sleeve ring is provided with an annular groove for placing the valve plate when the valve plate is closed, and a sealing contact is formed between the rubber pad extending out of the annular groove and the surface of the valve plate after the valve plate rotates into the annular groove, so that leakage is effectively prevented;

(2) Through the drive mechanism who is equipped with, when the valve plate was opened to needs, rotate the handle and drive the worm and follow the rotation, the worm drives the turbine that the meshing is connected and follows the rotation to the valve plate that drives the connection of valve rod bottom follows the rotation, realizes opening and closing control to the valve body.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic structural view of the sealing mechanism of the present invention;

fig. 3 is a schematic view of the installation structure of the expansion water stop ring of the present invention;

fig. 4 is a schematic structural view of the transmission mechanism of the present invention;

fig. 5 is a schematic view of the mounting structure of the pneumatic actuator of the present invention.

In the figure: 1. a valve body; 101. a pin hole; 2. a flange connecting plate; 3. mounting holes; 4. a through hole; 5. a valve plate; 51. connecting holes; 6. a sealing mechanism; 61. an annular mounting groove; 62. a sealing collar; 63. an annular groove; 64. a rubber pad; 65. a circular hole; 7. a transmission mechanism; 71. a valve stem; 72. a turbine; 73. a worm; 74. a handle; 8. a linkage rod; 9. an expansion water stop ring; 10. a pneumatic actuator; 11. pneumatic joint.

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 butterfly plate for a high-sealing butterfly valve comprises a valve body 1, pin holes 101 are formed in the top and the bottom of the valve body 1 in a penetrating mode, flange connection discs 2 are fixedly connected to two sides of the valve body 1, mounting holes 3 are formed in the surfaces of the flange connection discs 2, a through hole 4 is formed in the middle of the valve body 1, a valve plate 5 is arranged inside the through hole 4, connecting holes 51 are formed in two ends of the valve plate 5, a sealing mechanism 6 is installed in the middle of the inner wall of the valve body 1, and a transmission mechanism 7 is installed at the top of the valve body 1;

the sealing mechanism 6 comprises an annular mounting groove 61 arranged on the inner wall of the valve body 1, and a sealing sleeve ring 62 is embedded in the annular mounting groove 61.

In this embodiment: an annular groove 63 is formed in the inner wall of the sealing sleeve ring 62, two rubber pads 64 extend out of two sides of the sealing sleeve ring 62 through the formed annular groove 63, and a circular hole 65 is formed in the position, corresponding to the connecting hole 51, of the inner wall of the sealing sleeve ring 62.

When in specific use: seted up annular mounting groove 61 at 1 inner wall of valve body, the inside seal ring 62 that is equipped with of inlaying of annular mounting groove 61, seal ring 62 can eliminate installation clearance between traditional valve plate 5 and the valve body 1, seal ring 62 has better deformation and wear resistance simultaneously, seal ring 62 inner wall is seted up annular groove 63 and is used for placing valve plate 5 when closing, rotate the inside back of annular groove 63 at valve plate 5 through seting up rubber pad 64 that annular groove 63 extends, and form a sealed contact between the valve plate 5 surface, can prevent effectively revealing.

In this embodiment: the transmission mechanism 7 comprises a valve rod 71 which is rotatably installed at the top of the valve body 1, a worm gear 72 is fixedly installed at the top end of the valve rod 71, a worm 73 is rotatably installed at one side of the top of the valve body 1, the worm 73 is meshed with the worm gear 72 and connected, and a handle 74 is fixedly installed at one end of the worm 73.

When in specific use: when the valve plate 5 needs to be opened, the rotating handle 74 drives the worm 73 to rotate along with the rotating, the worm 73 drives the worm wheel 72 connected in a meshed mode to rotate along with the rotating, and therefore the valve plate 5 connected to the bottom end of the valve rod 71 is driven to rotate along with the rotating, and opening and closing control over the valve body 1 is achieved.

In this embodiment: bolt hole 101 and circular port 65 are worn to the bottom of valve rod 71 and are finally connected in the connecting hole 51 that the valve plate 5 top was seted up, and the inside interlude of bottom pinhole 101 of valve body 1 is connected with trace 8, and trace 8 interlude circular port 65 and connect in the connecting hole 51 that valve plate 5 bottom was seted up, and valve plate 5 rotates through valve rod 71 and trace 8 and installs inside the annular groove 63 that the inner wall of sealing collar 62 was seted up.

When in specific use: bolt hole 101 and circular port 65 are worn to valve rod 71 bottom are finally connected with the connecting hole 51 on valve plate 5 top, and the trace 8 that the inside interlude of valve body 1 bottom pinhole 101 was connected alternates circular port 65 and is connected with valve plate 5 bottom connecting hole 51 simultaneously for valve rod 71 drives valve plate 5 and has the support connection in valve plate 5 bottom when rotating, is convenient for accomplish the switch activity.

In this embodiment: the middle parts of the valve rod 71 and the linkage rod 8 are both sleeved with an expansion water stop ring 9.

When in specific use: the expansion water stop ring 9 that the valve rod 71 and the trace 8 surface cover were established has better separation performance, and after the seepage located valve rod 71 and trace 8, the expansion water stop ring 9 absorbed the leakage water and appears the inflation for seal the separation to joint line department, prevent the condition of taking place the leakage.

The working principle is as follows: after the valve plate 5 is embedded and installed in the annular groove 63 formed in the inner wall of the sealing sleeve ring 62, the sealing sleeve ring 62 isolates an installation gap between the valve plate 5 and the valve body 1, the rubber pad 64 extending out of the annular groove 63 forms a sealing contact with the surface of the valve plate 5 after the valve plate 5 rotates into the annular groove 63, leakage can be effectively prevented, the valve rod 71 and the linkage rod 8 are inserted into the pin hole 101 respectively and connected to the inside of the connecting hole 51 formed in the two ends of the valve plate 5, the expansion water stop ring 9 sleeved on the surfaces of the valve rod 71 and the linkage rod 8 can prevent water flow from leaking from the valve rod 71 and the linkage rod 8, the rotating handle 74 drives the valve rod 71 to rotate through the meshing of the worm 73 and the turbine 72 after installation is completed, and therefore opening and closing of the valve plate 5 are achieved.

Example 2

Referring to FIG. 5: in order to facilitate the automatic control of the opening and closing of the valve plate 5, the present embodiment has the distinctive features of the embodiment 1: in this embodiment: the top end of the valve body 1 is fixedly provided with a pneumatic actuator 10, one side of the pneumatic actuator 10 is fixedly connected with a pneumatic connector 11, and the rotating end of the pneumatic actuator 10 is fixedly connected with a valve rod 71.

When in specific use: after compressed air enters the pneumatic actuator 10 from the pneumatic connector 11, the pneumatic actuator 10 works to enable the rotating end to drive the valve rod 71 fixedly connected with the rotating end to rotate, so that the valve plate 5 is controlled to be opened and closed, and the valve plate 5 is replaced by manually controlling the opening and closing of the valve plate 5.

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 and equivalents may be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a butterfly plate for high leakproofness butterfly valve, includes valve body (1), its characterized in that: the valve comprises a valve body (1), a pin hole (101) is formed in the top and the bottom of the valve body (1) in a penetrating mode, flange connection discs (2) are fixedly connected to two sides of the valve body (1), mounting holes (3) are formed in the surfaces of the flange connection discs (2), a through hole (4) is formed in the middle of the valve body (1), a valve plate (5) is arranged inside the through hole (4), connecting holes (51) are formed in two ends of the valve plate (5), a sealing mechanism (6) is installed in the middle of the inner wall of the valve body (1), and a transmission mechanism (7) is installed at the top of the valve body (1);

sealing mechanism (6) are including offering annular mounting groove (61) at valve body (1) inner wall, annular mounting groove (61) inside inlays and is equipped with sealing collar (62).

2. The butterfly plate for a high-sealability butterfly valve according to claim 1, wherein: an annular groove (63) is formed in the inner wall of the sealing sleeve ring (62), two rubber pads (64) extend out of two sides of the sealing sleeve ring (62) through the formed annular groove (63), and a circular hole (65) is formed in the position, corresponding to the connecting hole (51), of the inner wall of the sealing sleeve ring (62).

3. The butterfly plate for a high-sealability butterfly valve according to claim 1, wherein: drive mechanism (7) are including rotating valve rod (71) of installing at valve body (1) top, the top fixed mounting of valve rod (71) has turbine (72) valve body (1) top one side is rotated and is installed worm (73), worm (73) are connected with turbine (72) meshing, the one end fixed mounting of worm (73) has handle (74).

4. The butterfly plate for a high-sealability butterfly valve according to claim 3, wherein: bolt hole (101) and circular port (65) are worn to the bottom of valve rod (71) and are finally connected in connecting hole (51) that valve plate (5) top was seted up, the inside interlude of bottom pinhole (101) of valve body (1) is connected with trace (8), trace (8) are worn circular port (65) and are connected in connecting hole (51) middle part that valve plate (5) bottom was seted up.

5. The butterfly plate for a high-sealability butterfly valve according to claim 1, wherein: the valve plate (5) is rotatably arranged in an annular groove (63) formed in the inner wall of the sealing sleeve ring (62) through a valve rod (71) and a linkage rod (8).

6. The butterfly plate for a high-sealability butterfly valve according to claim 5, wherein: and the middle parts of the valve rod (71) and the linkage rod (8) are respectively sleeved with an expansion water stop ring (9).

7. The butterfly plate for a high-sealability butterfly valve according to claim 1, wherein: the pneumatic actuator (10) is fixedly mounted at the top end of the valve body (1), a pneumatic connector (11) is fixedly connected to one side of the pneumatic actuator (10), and the rotating end of the pneumatic actuator (10) is fixedly connected with the valve rod (71).