CN217713672U

CN217713672U - Elastic hard sealing butterfly valve

Info

Publication number: CN217713672U
Application number: CN202221282584.2U
Authority: CN
Inventors: 蔡晓东
Original assignee: Heilongjiang Funirui Electromechanical Equipment Co ltd
Current assignee: Heilongjiang Funirui Electromechanical Equipment Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-11-01
Anticipated expiration: 2032-05-26

Abstract

The utility model discloses an elasticity butterfly valve sealed firmly, including disk seat and butterfly plate, be provided with the valve body in the disk seat, and the bottom fixed connection of valve body top and valve rod, the top of valve rod is run through the outside of setting at the disk seat, one side of first gear is provided with the second gear, and the second gear passes through the bull stick and is connected with the output of motor, the butterfly plate sets up inside the valve body, and the top of butterfly plate is connected with the kicking block through adjusting the pole. This elasticity butterfly valve sealed firmly, be provided with valve body and butterfly plate, valve body and butterfly plate can play the sealed effect of double-deck, thereby can avoid the sealed untight phenomenon that appears of single butterfly plate to a certain extent, simultaneously with the valve body of the same material of butterfly plate can prevent the medium and the disk seat direct contact that the device carried, thereby be convenient for prevent to take place the inflation of different degrees because of carrying the subassembly that the medium high temperature leads to two kinds of different materials, and then be convenient for appear the unable closed phenomenon of butterfly plate, thereby be convenient for guarantee the normal use of device.

Description

Elastic hard sealing butterfly valve

Technical Field

The utility model relates to a butterfly valve seals technical field firmly specifically is an elasticity butterfly valve that seals firmly.

Background

The elastic hard sealing butterfly valve is an eccentric metal sealing structure, the sealing form is metal-to-metal sealing, the replaceable metal sealing ring is used for metal sealing, the stainless steel plate and the graphite composite plate sealing ring are used for metal sealing, and the butterfly plate of the elastic hard sealing butterfly valve is arranged in the diameter direction of the pipeline. In a cylindrical channel of a butterfly valve body, a disc-shaped butterfly plate rotates around an axis, the rotation angle is between 0 and 90 degrees, and the disc-shaped butterfly plate is in a full-open state when rotating to 90 degrees, and through mass search, the typical elastic hard seal butterfly valve in the prior art, such as the publication number CN211145380U, is found to comprise a valve body, a valve rod connected with the valve body, a transmission mechanism connected with the valve rod and a hand wheel connected with the transmission mechanism, wherein the valve rod is provided with the butterfly plate positioned in the valve body. The butterfly valve further comprises a metal sealing ring which is arranged in the circumferential direction of the butterfly plate and has certain elasticity, and the sealing ring extends out of the butterfly plate in the circumferential direction to seal the valve body. The main characteristic is that compared with the traditional rubber asbestos plate, the wear resistance is better. The body valve seat is annular, the inner end face inclines, the rotating sealing ring is easier to extrude, the deformation is larger, the sealing performance is better, and meanwhile, the inclined inner end face of the body valve seat can better resist the fluid pressure.

In summary, the conventional elastic hard seal butterfly valve is easy to expand due to overhigh temperature of the conveying medium, and the expansion amount of the butterfly valve is different due to different materials, so that the butterfly plate cannot be closed, that is, the butterfly valve cannot be normally used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elasticity butterfly valve sealed firmly to the current elasticity butterfly valve sealed firmly who proposes in solving above-mentioned background art appears the inflation phenomenon because of the transport medium high temperature easily, leads to its inflation volume different because the material difference of constitution simultaneously, and then makes the unable closed problem of device normal use promptly of butterfly plate.

In order to achieve the above object, the utility model provides a following technical scheme: an elastic hard seal butterfly valve comprises a valve seat and a butterfly plate,

a valve body is arranged in the valve seat, the top of the valve body is fixedly connected with the bottom end of the valve rod, the top end of the valve rod penetrates through the outer side of the valve seat, a first gear is connected onto the valve rod, a second gear is arranged on one side of the first gear, and the second gear is connected with the output end of the motor through a rotating rod;

the butterfly plate is arranged inside the valve body, the top of the butterfly plate is connected with the ejector block through the adjusting rod, and the adjusting rod is arranged on the inner side of the valve rod.

Preferably, the valve body is symmetrically provided with through holes, the inner bottom of the valve body is provided with a groove, and the valve body is spherical;

through adopting above-mentioned technical scheme, the globular valve body is convenient for the shape of maximum laminating valve body to be convenient for prevent to carry medium and valve body direct contact.

Preferably, the valve rod is rotatably connected with an adjusting rod, and the adjusting rod is connected with a handle;

through adopting above-mentioned technical scheme, staff's accessible is rotatory handle will adjust the pole promptly the butterfly plate and rotate to be convenient for utilize the butterfly plate to carry out the secondary seal to the device.

Preferably, the first gear is meshed with the second gear, the first gear, the second gear, the rotating rod, the valve body and the motor form a rotating structure, and the motor is fixedly connected to the top of the valve seat;

through adopting above-mentioned technical scheme, be convenient for drive the valve body rotation through the motor and seal the device.

Preferably, the bottom of the butterfly plate is fixedly connected with a clamping block, and the clamping block is arranged in the groove;

by adopting the technical scheme, the bottom of the butterfly plate is convenient to limit, so that the connection relation between the butterfly plate and the valve body is convenient to tighten.

Preferably, the butterfly plate is in a cake shape and is rotatably connected with the inner wall of the valve body;

by adopting the technical scheme, the cake-shaped butterfly plate is convenient for sealing and conveying media to the maximum extent, so that the structure of the device is convenient to optimize.

Compared with the prior art, the beneficial effects of the utility model are that: the elastic hard sealing butterfly valve is characterized in that,

(1) The butterfly valve is provided with the valve body and the butterfly plate, the valve body and the butterfly plate can play a role of double-layer sealing, so that the phenomenon of untight sealing caused by sealing of a single butterfly plate can be avoided to a certain extent, and the valve body made of the same material as the butterfly plate can prevent a medium conveyed by the butterfly plate from being in direct contact with a valve seat, so that the expansion of components made of two different materials to different degrees caused by overhigh temperature of the conveyed medium can be prevented, the phenomenon that the butterfly plate cannot be closed can be conveniently caused, and the normal use of the butterfly plate can be conveniently ensured;

(2) Be provided with the motor, under the transmission of first gear and second gear, the motor can drive valve rod and valve body and rotate to can realize opening and closing of the automation of valve body, and then be convenient for improve the automation level of device, thereby be convenient for the staff rotation handle drive butterfly plate to its inside secondary seal operation.

Drawings

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

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

fig. 3 is a schematic view of the whole connection structure of the valve body, the overlooking valve rod, the first gear, the second gear and the rotating rod of the present invention.

In the figure: 1. the valve comprises a valve seat, 2, a valve body, 201, a through hole, 202, a groove, 3, a valve rod, 4, a first gear, 5, a second gear, 6, a rotating rod, 7, a motor, 8, a butterfly plate, 9, a clamping block, 10, an adjusting rod, 11, a handle, 12 and a top block.

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. 1-3, the present invention provides a technical solution: an elastic hard seal butterfly valve, embodiment one

As shown in fig. 1, 2 and 3, a valve body 2 is arranged in the valve seat 1, the top of the valve body 2 is fixedly connected with the bottom end of the valve rod 3, the top end of the valve rod 3 penetrates through the outer side of the valve seat 1, a first gear 4 is connected to the valve rod 3, a second gear 5 is arranged on one side of the first gear 4, and the second gear 5 is connected with the output end of the motor 7 through a rotating rod 6.

Specifically, first gear 4 and second gear 5 all play the transmission effect to it is rotatory that the motor 7 of being convenient for drives valve rod 3, and rotatory valve rod 3 will drive valve body 2 rotatory, thereby the medium of being convenient for passes through valve body 2 and arranges to the device outside.

In a further embodiment, the valve rod 3 is rotatably connected to an adjusting rod 10, and a handle 11 is connected to the adjusting rod 10.

Specifically, the rotatable handle 11 of staff drives the regulation pole 10 and rotates, and rotatory regulation pole 10 will drive butterfly plate 8 and rotate to can utilize butterfly plate 8 to carry out two sealings to valve body 2 inside.

In a further embodiment, the first gear 4 is meshed with the second gear 5, and the first gear 4, the second gear 5, the rotating rod 6 and the motor 7 form a rotating structure, while the motor 7 is fixedly connected to the top of the valve seat 1.

As shown in fig. 1 and 2, the butterfly plate 8 is disposed inside the valve body 2, and the top of the butterfly plate 8 is connected to the top block 12 through the adjustment lever 10, while the adjustment lever 10 is disposed inside the valve stem 3.

In a further embodiment, a latch 9 is fixedly connected to the bottom of the butterfly plate 8, and the latch 9 is disposed in the groove 202.

Specifically, in the in-service use in-process, the rotatable handle 11 of staff opens and shuts the butterfly plate 8, starter motor 7 after that, motor 7 will drive valve body 2 rotatoryly, thereby can make the medium pass through in the pipeline that valve body 2 flows to one side connection, the high temperature medium that can avoid circulating of valve body 2 simultaneously and 1 inner wall direct contact of disk seat, thereby be convenient for prevent that it from taking place the inflation and warping, and be same kind of material with the valve body 2 and the butterfly plate 8 of high temperature medium contact, it will take place same deformation promptly, thereby can avoid leading to the unable normal use of device because of its thermal expansion to a certain extent.

Example two

The present embodiment is further described in the above embodiments, and it should be understood that the present embodiment includes all the technical features described above and is further specifically described.

In a further embodiment, the valve body 2 is symmetrically provided with through holes 201, and the inner bottom of the valve body 2 is provided with a groove 202, and the valve body 2 is spherical.

In a further embodiment, the butterfly plate 8 is pie-shaped and the butterfly plate 8 is rotatably connected to the inner wall of the valve body 2.

Specifically, the spherical valve body 2 is convenient for protecting the valve seat 1 to the maximum extent and is convenient for improving the sealing performance of the device.

The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.

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 an elasticity butterfly valve sealed firmly, includes disk seat (1) and butterfly plate (8), its characterized in that:

a valve body (2) is arranged in the valve seat (1), the top of the valve body (2) is fixedly connected with the bottom end of the valve rod (3), the top end of the valve rod (3) penetrates through the outer side of the valve seat (1), the valve rod (3) is connected with a first gear (4), a second gear (5) is arranged on one side of the first gear (4), and the second gear (5) is connected with the output end of a motor (7) through a rotating rod (6);

the butterfly plate (8) is arranged inside the valve body (2), the top of the butterfly plate (8) is connected with the top block (12) through the adjusting rod (10), and the adjusting rod (10) is arranged on the inner side of the valve rod (3).

2. The resilient hard seal butterfly valve of claim 1, wherein: through holes (201) are symmetrically formed in the valve body (2), a groove (202) is formed in the inner bottom of the valve body (2), and meanwhile the valve body (2) is spherical.

3. The resilient hard-seal butterfly valve of claim 1, wherein: the valve rod (3) is rotatably connected with the adjusting rod (10), and the adjusting rod (10) is connected with a handle (11).

4. The resilient hard-seal butterfly valve of claim 1, wherein: the valve is characterized in that the first gear (4) is meshed with the second gear (5) and is connected with the second gear (5), the first gear (4), the second gear (5), the rotating rod (6), the valve body (2) and the motor (7) form a rotating structure, and meanwhile the motor (7) is fixedly connected to the top of the valve seat (1).

5. The resilient hard seal butterfly valve of claim 1, wherein: the bottom of the butterfly plate (8) is fixedly connected with a clamping block (9), and the clamping block (9) is arranged in the groove (202).

6. The resilient hard seal butterfly valve of claim 1, wherein: the butterfly plate (8) is in a pie shape, and the butterfly plate (8) is rotatably connected with the inner wall of the valve body (2).