CN113339528B

CN113339528B - Butterfly valve

Info

Publication number: CN113339528B
Application number: CN202110750704.0A
Authority: CN
Inventors: 廖锦农; 洪兆东
Original assignee: Xiamen Smk Valve Co ltd
Current assignee: Xiamen Smk Valve Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2023-03-14
Anticipated expiration: 2041-07-02
Also published as: CN113339528A

Abstract

The invention discloses a butterfly valve which comprises a butterfly valve body, wherein a fixed block is fixed at the upper end of the butterfly valve body, the inner bottom of the butterfly valve body is rotatably connected with a rotating rod through a bearing, a raft plate is fixed on the circumferential side wall of the rotating rod, the raft plate is abutted against the inner wall of the butterfly valve body, an adjusting cavity is formed in the fixed block, the upper end of the rotating rod penetrates through the adjusting cavity and is rotatably connected with the top of the adjusting cavity through the bearing, a plurality of vertical grooves are formed in the circumferential side wall of the fixed block, the two vertical grooves are communicated through a horizontal groove, and the circumferential side wall of the rotating rod is slidably connected with an annular sliding block. Has the advantages that: the dwang drives the raft and rotates the in-process, can realize that the arc promotes the arc ejector pad and removes for the sealed pad that rubber materials made is inseparabler with the laminating of raft, can make the leakproofness of raft when closing better, makes the butterfly valve can use under the inseparable environment, can effectively increase the suitability of butterfly valve.

Description

Butterfly valve

Technical Field

The invention relates to the technical field of valves, in particular to a butterfly valve.

Background

The butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the on-off control of low-pressure pipeline media, the butterfly valve opening and closing piece is a disc-shaped butterfly plate, and rotates around the axis of the butterfly valve body in the valve body, thereby achieving the purpose of opening, closing or regulating, 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, and mainly plays a role in cutting off and throttling on the pipeline;

and traditional butterfly valve is not spacing to the raft board at the rotation in-process, can make the butterfly valve automatic open when the inside liquid pressure of butterfly valve is too big, can influence the use of butterfly valve, and the butterfly valve leakproofness is relatively poor when closing moreover, can have the condition of seepage, and use under unsuitable and the inseparable environment can make the butterfly valve suitability lower, for this reason, we have proposed a better butterfly valve of sealed effect.

Disclosure of Invention

The invention aims to solve the problem of poor sealing performance in the prior art, and provides a butterfly valve.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a butterfly valve, includes the butterfly valve body, the upper end of butterfly valve body is fixed with the fixed block, the interior bottom of butterfly valve body is rotated through the bearing and is connected with the dwang, the circumference lateral wall of dwang is fixed with the raft, the raft offsets with butterfly valve body inner wall, the regulation chamber has been seted up to the inside of fixed block, the upper end of dwang runs through to the inside of adjusting the chamber and is connected through the bearing rotation with adjusting intracavity top, a plurality of vertical grooves have been seted up to the circumference lateral wall of fixed block, two the vertical groove passes through the horizontal slot intercommunication, the circumference lateral wall sliding connection of dwang has annular slider, annular slider's lateral wall is fixed with two connecting plates, the circumference lateral wall of dwang is fixed with the spline, the spacing groove has been seted up to annular slider upper end, the spline offsets with the spacing inslot wall, rotation chamber and two arc chambeies have been seted up to the inside of butterfly valve body, two arc chamber symmetry sets up, two the inside in arc chamber all is provided with sealing device, the inside that rotation chamber is provided with two triggering device that the symmetry set up, triggering device corresponds with sealing device, the both ends lateral wall of butterfly valve body has supported the connecting pipe, this body passes through a plurality of homogeneous phase connection device.

In a foretell butterfly valve, sealing device includes the arc slider with arc intracavity wall sliding connection, the arc slider passes through coupling spring with arc intracavity wall and is connected, the bottom of arc slider is fixed with the arc, the ladder groove with the inside intercommunication of butterfly valve body is seted up to the inner wall in arc chamber, the inner wall sliding seal sliding connection in ladder groove has the arc ejector pad, the tip veneer of arc ejector pad has sealed the pad, sealed pad adopts rubber materials to make.

In a foretell butterfly valve, the arc ejector pad is connected through a plurality of spacing spring with the inner wall in ladder groove, a plurality of standing grooves have been seted up to the lateral wall of arc ejector pad, the lateral wall of arc is fixed with a plurality of pieces that promote, and is a plurality of standing groove and a plurality of pieces one-to-one that promote.

In the butterfly valve, the trigger device includes a sliding plate slidably connected to an inner wall of the rotating cavity, the sliding plate is connected to the inner wall of the rotating cavity through a plurality of return springs, a trigger rod is fixed to a side wall of the arc-shaped sliding block, the trigger rod penetrates through the inner wall of the rotating cavity, and the trigger rod abuts against a side wall of one end of the sliding plate.

In the above butterfly valve, the rotating rod penetrates through the rotating cavity, and a protrusion is fixed on a circumferential side wall of the rotating rod and abuts against a side wall at the other end of the sliding plate.

In a foretell butterfly valve, installation device is including the ring baffle who is fixed in butterfly valve body circumference lateral wall, the ring baffle offsets with the connecting pipe, the rectangle chamber has been seted up to the inner wall of ring baffle, the inner wall sliding connection in rectangle chamber has the connecting block, a side end of connecting block passes through locking spring with the inner wall in rectangle chamber and is connected, the connecting block runs through to the outside of ring baffle, the connecting block is T type piece.

In foretell butterfly valve, the lateral wall of connecting pipe runs through and has seted up the mounting groove, the mounting groove corresponds with the connecting block, the upper end of connecting block runs through and has seted up logical groove, the storage tank has been seted up to the opposite side tip of connecting block, the gag lever post has been placed to the storage tank inside.

In the butterfly valve, the end of the limiting rod is fixed with a limiting cap which is in sealing contact with the inner wall of the storage groove, the limiting rod corresponds to the through grooves, and the through grooves are vertically arranged.

Compared with the prior art, the invention has the advantages that:

1. according to the butterfly valve, the rotation angle of the rotating rod can be accurately controlled by arranging the vertical groove and the horizontal groove, so that the butterfly valve can be conveniently and accurately controlled to be opened and closed, meanwhile, the vertical groove can limit the connecting plate, and further the positions of the annular sliding block and the rotating rod can be limited, so that the stability of the butterfly valve in the sealing process can be ensured, the situation that the butterfly valve is automatically opened due to overlarge pressure can be avoided, and the safe use of the butterfly valve can be ensured;

2. in the invention, when the rotating rod drives the raft to rotate, the arc-shaped pushing block can be pushed by the arc-shaped plate to move, so that the sealing gasket made of rubber materials is more tightly attached to the raft, the sealing property of the raft when closed can be better, the butterfly valve can be used in a tight environment, and the applicability of the butterfly valve can be effectively increased;

3. according to the invention, by arranging the locking spring, the connecting pipe can be tightly attached to the end part of the butterfly valve after the connecting block is limited, the stability of the connecting part of the butterfly valve and the connecting pipe can be ensured, and meanwhile, the butterfly valve and the connecting pipe can be conveniently installed, so that the butterfly valve is more convenient to use and install;

4. according to the butterfly valve, the spacing relation of the connecting blocks can be quickly relieved by taking out the limiting rods, the butterfly valve can be conveniently separated from the connecting pipe, the butterfly valve can be more conveniently and quickly disassembled, the disassembling efficiency of the butterfly valve can be effectively improved, and the butterfly valve can be conveniently disassembled and maintained.

Drawings

FIG. 1 is a schematic structural view of a butterfly valve according to the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a side cross-sectional view of a butterfly valve in accordance with the present invention;

FIG. 4 is a schematic structural view of a fixed block portion of a butterfly valve according to the present invention;

FIG. 5 is a top cross-sectional view of a portion of a rotary chamber of a butterfly valve in accordance with the present invention;

fig. 6 is a schematic structural diagram of a mounting device in a butterfly valve according to the present invention.

In the figure: 1 butterfly valve body, 2 fixed blocks, 3 dwang, 4 rafts, 5 regulation chambeies, 6 vertical grooves, 7 horizontal grooves, 8 annular slider, 9 connecting plates, 10 rotation chambeies, 11 arc chambeies, 12 arc slider, 13 coupling spring, 14 arc, 15 ladder grooves, 16 arc ejector pad, 17 sealed pad, 18 spacing spring, 19 standing groove, 20 promotion piece, 21 trigger bar, 22 lugs, 23 sliding plate, 24 reset spring, 25 annular baffle, 26 connecting pipe, 27 rectangle chambeies, 28 connecting blocks, 29 locking spring, 30 mounting groove, 31 spline, 32 logical groove, 33 storage tank, 34 gag lever post.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Example 1

Referring to fig. 1-6, a butterfly valve, including butterfly valve body 1, the upper end of butterfly valve body 1 is fixed with fixed block 2, the interior bottom of butterfly valve body 1 is connected with dwang 3 through bearing rotation, the circumference lateral wall of dwang 3 is fixed with raft 4, raft 4 offsets with butterfly valve body 1 inner wall, regulation chamber 5 has been seted up to the inside of fixed block 2, the upper end of dwang 3 runs through to the inside of regulation chamber 5 and is connected through bearing rotation with regulation chamber 5 inner top, the circumference lateral wall of fixed block 2 has seted up a plurality of vertical grooves 6, two vertical grooves 6 communicate through horizontal slot 7, the circumference lateral wall sliding connection of dwang 3 has annular slider 8, annular slider 8's lateral wall is fixed with two connecting plates 9, the circumference lateral wall of dwang 3 is fixed with spline 31, annular slider 8 has seted up the spacing groove in the upper end, spline 31 offsets with the spacing inslot wall, rotation chamber 10 and two arc chambers 11 have been seted up to the inside of butterfly valve body 1, two arc chambers 11 symmetry set up, the inside of two arc chambers 11 all is provided with sealing device, the inside of dwang 10 is provided with the triggering device that two symmetry set up, triggering device corresponds to the sealing device, two ends of butterfly valve body 1 are connected through a plurality of connecting pipe 26 with butterfly valve body, the homogeneous phase connection pipe of butterfly valve body is installed.

The sealing device comprises an arc-shaped sliding block 12 connected with the inner wall of the arc-shaped cavity 11 in a sliding mode, the arc-shaped sliding block 12 is connected with the inner wall of the arc-shaped cavity 11 through a connecting spring 13, an arc-shaped plate 14 is fixed to the bottom of the arc-shaped sliding block 12, a stepped groove 15 communicated with the interior of the butterfly valve body 1 is formed in the inner wall of the arc-shaped cavity 11, an arc-shaped push block 16 is connected with the inner wall of the stepped groove 15 in a sliding and sealing mode, a sealing gasket 17 is glued to the end portion of the arc-shaped push block 16, the sealing gasket 17 is made of rubber materials, and the arc-shaped plate 14 abuts against the inner wall of the arc-shaped cavity 11; the arc-shaped pushing block 16 is connected with the inner wall of the stepped groove 15 through a plurality of limiting springs 18, a plurality of placing grooves 19 are formed in the side wall of the arc-shaped pushing block 16, a plurality of pushing blocks 20 are fixed on the side wall of the arc-shaped plate 14, and the plurality of placing grooves 19 correspond to the plurality of pushing blocks 20 one to one; the trigger device comprises a sliding plate 23 which is in sliding connection with the inner wall of the rotating cavity 10, the sliding plate 23 is connected with the inner wall of the rotating cavity 10 through a plurality of reset springs 24, a trigger rod 21 is fixed on the side wall of the arc-shaped sliding block 12, the trigger rod 21 penetrates through the inner wall of the rotating cavity 10, and the trigger rod 21 is abutted to the side wall of one end of the sliding plate 23; dwang 3 runs through and rotates chamber 10, the circumference lateral wall of dwang 3 is fixed with lug 22, lug 22 offsets with the other end lateral wall of sliding plate 23, set up trigger device and sealing device, can drive raft 4 rotation in-process at dwang 3, realize the removal of arc ejector pad 16, thereby can make sealed pad 17 and the laminating of raft 4 inseparabler, can guarantee the leakproofness of butterfly valve body 1 closed condition, make butterfly valve body 1 use safelyr.

The mounting device comprises an annular baffle plate 25 fixed on the circumferential side wall of the butterfly valve body 1, the annular baffle plate 25 abuts against a connecting pipe 26, a rectangular cavity 27 is formed in the inner wall of the annular baffle plate 25, a connecting block 28 is connected to the inner wall of the rectangular cavity 27 in a sliding mode, one side end of the connecting block 28 is connected with the inner wall of the rectangular cavity 27 through a locking spring 29, the connecting block 28 penetrates through the annular baffle plate 25, and the connecting block 28 is a T-shaped block; the side wall of the connecting pipe 26 is provided with a mounting groove 30 in a penetrating manner, the mounting groove 30 corresponds to the connecting block 28, the upper end of the connecting block 28 is provided with a through groove 32 in a penetrating manner, the end part of the other side of the connecting block 28 is provided with a storage groove 33, and a limiting rod 34 is arranged inside the storage groove 33; the end fixing of gag lever post 34 has spacing cap, and spacing cap offsets with the sealed of storage tank 33 inner wall, and gag lever post 34 corresponds with leading to groove 32, and a plurality of logical groove 32 are all vertical to be set up, set up installation device, can guarantee the stability that butterfly valve body 1 and connecting pipe 26 are connected, also can make things convenient for the dismantlement installation of butterfly valve body 1 simultaneously for the dismantlement maintenance of butterfly valve body 1 is more convenient, and efficiency is higher.

In the butterfly valve body 1, the connecting plates 9 at two ends are lifted simultaneously in the use process, so that the connecting plates 9 slide upwards along the vertical grooves 6, the annular sliding block 8 can be driven to move upwards along the splines 31, when the connecting plates 9 move to the inner top of the vertical grooves 6, the connecting plates 9 at two ends are pushed to move along the horizontal grooves 7, the annular sliding block 8 can rotate, in the rotation process of the annular sliding block 8, under the combined action of the splines 31 and the limiting grooves, the rotating rod 3 can be rotated, the rotation of the raft 4 can be realized, and after the connecting plates 9 rotate to the positions of the vertical grooves 6 at the other end, the connecting plates 9 are pushed to move downwards, so that the connecting plates 9 reach the inner bottom of the vertical grooves 6, at the moment, the raft 4 rotates ninety degrees, the butterfly valve body 1 is in a sealing state, and the splines 31 are still located in the limiting grooves, the connecting plates 9 can be limited by the vertical grooves 6, the rotating rod can be limited, the annular sliding blocks 8 and the raft 3 can be limited, so that the stability of the raft 4 in the sealing process of the butterfly valve body 1 can be ensured, and the butterfly valve body 1 can be used more safely;

in the rotating process of the rotating rod 3, the protruding block 22 is driven to rotate, the protruding block 22 is an arc-shaped block, in the rotating process of the rotating rod 3 driven by the protruding block 22, the sliding plate 23 is driven to move and compress the reset spring 24, the trigger rod 21 is further driven to move towards the inner wall of the arc-shaped cavity 11, and the arc-shaped slider 12 is driven to slide along the inner wall of the arc-shaped cavity 11 at the same time, meanwhile, the connecting spring 13 can be in a stretching state, the arc-shaped plate 14 can be driven to move in the moving process of the arc-shaped slider 12, the pushing block 20 in the placing groove 19 can be driven to move in the moving process of the arc-shaped plate 14, the pushing block 20 is in contact with the side wall of the arc-shaped pushing block 16, so that the arc-shaped pushing block 16 can be gradually separated from the arc-shaped plate 14, the arc-shaped pushing block 16 can be driven to move along the inner part of the stepped groove 15 box butterfly valve body 1, at the compression state of the limiting spring 18, meanwhile, the sealing gasket 17 made of rubber material can be tightly attached to the raft 4, the butterfly valve body 1 can be tightly attached to the butterfly valve body 1, and the butterfly valve body 1 can be more safely used;

when the connecting plate 9 is rotated to enable the rotating rod 3 to rotate in the opposite direction, the channel of the butterfly valve body 1 can be gradually opened, the lug 22 can be gradually separated from the sliding plate 23 when the rotating rod 3 rotates, the original position can be returned under the action of the reset spring 24 in the compression state, and the resetting of the arc plate 14 and the arc push block 16 can be realized under the combined action of the connecting spring 13 in the stretching state and the limiting spring 18 in the compression state, so that the blocking of the butterfly valve body 1 can be reduced, and the normal circulation when the channel inside the butterfly valve body 1 is communicated can be ensured;

and in butterfly valve body 1 installation, need correspond ring baffle 25 and connecting pipe 26 of butterfly valve body 1 lateral wall, aim at connecting block 28 and connecting pipe 26 lateral wall's mounting groove 30, promote connecting pipe 26, make connecting block 28 pass the position of mounting groove 30, then pulling connecting block 28 makes logical groove 32 of connecting block 28 upper end be located the mounting groove 30 outside, take out the gag lever post 34 of the inside storage of storage tank 33 this moment, place gag lever post 34 inside logical groove 32, utilize the spacing cap of gag lever post 34 upper end to offset with connecting block 28 upper end, utilize gag lever post 34 to be spacing to connecting block 28, and be in locking spring 29 under the tensile state simultaneously and can stimulate connecting block 28, make connecting pipe 26 and ring baffle 25 laminating inseparabler, and the leakproofness is better, and then can make butterfly valve body 1 and connecting pipe 26 connect more conveniently, simultaneously only need take out gag lever post 34 can, can be convenient to the dismantlement of butterfly valve body 1, make the dismantlement maintenance of butterfly valve body 1 more convenient.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The butterfly valve comprises a butterfly valve body (1) and is characterized in that a fixed block (2) is fixed at the upper end of the butterfly valve body (1), the inner bottom of the butterfly valve body (1) is rotatably connected with a rotating rod (3) through a bearing, the circumferential side wall of the rotating rod (3) is fixed with a raft (4), the raft (4) is abutted to the inner wall of the butterfly valve body (1), an adjusting cavity (5) is formed in the inner part of the fixed block (2), the upper end of the rotating rod (3) penetrates into the inner part of the adjusting cavity (5) and is rotatably connected with the inner top of the adjusting cavity (5) through a bearing, the circumferential side wall of the fixed block (2) is provided with a plurality of vertical grooves (6), two vertical grooves (6) are communicated through a horizontal groove (7), the circumferential side wall of the rotating rod (3) is slidably connected with an annular sliding block (8), the side wall of the annular sliding block (8) is fixed with two connecting plates (9), the circumferential side wall of the spline (3) is fixed with a spline (31), the upper end of the annular sliding block (8) is provided with a limiting groove, the inner wall (31) is abutted to the inner wall of the limiting groove (11), and the inner wall of the butterfly valve body (11) is provided with two symmetrical arc-shaped sealing devices which are arranged in the arc-shaped sealing arc-shaped cavity (11), two symmetrically-arranged trigger devices are arranged in the rotating cavity (10), the trigger devices correspond to the sealing devices, the side walls of the two ends of the butterfly valve body (1) are respectively abutted against a connecting pipe (26), and the butterfly valve body (1) is connected with the connecting pipes (26) through a plurality of mounting devices; the sealing device comprises an arc-shaped sliding block (12) which is in sliding connection with the inner wall of an arc-shaped cavity (11), the arc-shaped sliding block (12) is connected with the inner wall of the arc-shaped cavity (11) through a connecting spring (13), an arc-shaped plate (14) is fixed at the bottom of the arc-shaped sliding block (12), a stepped groove (15) communicated with the interior of the butterfly valve body (1) is formed in the inner wall of the arc-shaped cavity (11), an arc-shaped push block (16) is in sliding connection with the inner wall of the stepped groove (15) in a sealing and sealing mode, a sealing gasket (17) is glued at the end portion of the arc-shaped push block (16), and the sealing gasket (17) is made of rubber materials; the arc-shaped push block (16) is connected with the inner wall of the stepped groove (15) through a plurality of limiting springs (18), a plurality of placing grooves (19) are formed in the side wall of the arc-shaped push block (16), a plurality of push blocks (20) are fixed on the side wall of the arc-shaped plate (14), and the placing grooves (19) correspond to the push blocks (20) one to one; the trigger device comprises a sliding plate (23) which is in sliding connection with the inner wall of the rotating cavity (10), the sliding plate (23) is connected with the inner wall of the rotating cavity (10) through a plurality of reset springs (24), a trigger rod (21) is fixed on the side wall of the arc-shaped sliding block (12), the trigger rod (21) penetrates through the inner wall of the rotating cavity (10), and the trigger rod (21) is abutted to the side wall of one end of the sliding plate (23); dwang (3) run through and rotate chamber (10), the circumference lateral wall of dwang (3) is fixed with lug (22), lug (22) offset with the other end lateral wall of sliding plate (23).

2. The butterfly valve according to claim 1, wherein the mounting device comprises a ring-shaped baffle (25) fixed on a circumferential side wall of the butterfly valve body (1), the ring-shaped baffle (25) abuts against the connecting pipe (26), a rectangular cavity (27) is formed in the inner wall of the ring-shaped baffle (25), a connecting block (28) is slidably connected to the inner wall of the rectangular cavity (27), one side end of the connecting block (28) is connected with the inner wall of the rectangular cavity (27) through a locking spring (29), the connecting block (28) penetrates through the outer portion of the ring-shaped baffle (25), and the connecting block (28) is a T-shaped block.

3. The butterfly valve according to claim 2, wherein a mounting groove (30) is formed through a side wall of the connecting pipe (26), the mounting groove (30) corresponds to the connecting block (28), a through groove (32) is formed through an upper end of the connecting block (28), a storage groove (33) is formed at an end portion of the other side of the connecting block (28), and a limiting rod (34) is placed inside the storage groove (33).

4. A butterfly valve according to claim 3, wherein a stop cap is fixed to an end of the stop rod (34), the stop cap sealingly abuts against an inner wall of the storage groove (33), the stop rod (34) corresponds to the through groove (32), and the through grooves (32) are vertically arranged.