CN219317645U - Corrosion-resistant soft seal butterfly valve - Google Patents

Abstract

The application discloses corrosion-resistant soft seal butterfly valve, including the disk seat, the middle part of disk seat rotates and is connected with the valve clack, the fixed cover that is equipped with in top of disk seat, the top fixedly connected with footstock of fixed cover, accomodate the groove has been seted up to the both sides of disk seat, the inside of two accomodates the groove is provided with seal assembly, seal assembly includes the sealing block, two sealing block sliding connection are in the inside both sides of disk seat, the seal groove has all been seted up to the both sides of valve clack, sealing block and seal groove assorted, one side that two sealing blocks are close to accomodate the groove is provided with first spring, the inside of fixed cover is provided with drive valve clack pivoted actuating assembly, when making valve clack closure state through the elasticity of first spring, the sealing block can get into in the seal groove, seal the valve clack through the cooperation of sealing block and valve clack, the spring elasticity promotes sealed pad and valve clack hugs closely, the sealed effect is better, sealed pad goes deep the inside of valve clack, the edge takes place some wearing and tearing can not influence sealed effect yet.

Description

Corrosion-resistant soft seal butterfly valve

Technical Field

The application relates to the field of butterfly valves, in particular to a corrosion-resistant soft sealing butterfly valve.

Background

The butterfly valve is also called as a flap valve, and the flap valve is a valve which is a disc and rotates and reciprocates around a valve shaft to open, close or regulate the flow of a medium, can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive mediums, slurry, oil products, liquid metal, radioactive mediums and the like, and mainly has the functions of cutting off and throttling on a pipeline.

The butterfly valve of soft seal uses the sealing washer of rubber material to seal around the valve clack, and the sealing washer corrosion resistance ability is relatively poor, and industry such as inadaptation corrosion-resistant, resistance to wear, when soft seal butterfly valve clack was opened and close and is rotated, valve clack and sealing washer surface produced the friction, after long-time use, the sealing washer can take place wearing and tearing for when the valve clack was closed, the disk seat took place to leak with the edge of valve clack, thereby influences the result of use of butterfly valve, reduces the life of butterfly valve.

Disclosure of Invention

The application provides a corrosion-resistant soft seal butterfly valve, has solved the problem that sealing washer wearing and tearing easily take place to leak among the prior art, has realized the more stable seal of butterfly valve.

The application provides a corrosion-resistant soft seal butterfly valve, which comprises a valve seat, the middle part of disk seat rotates and is connected with the valve clack, the fixed cover that is equipped with in top of disk seat, the top fixedly connected with footstock of fixed cover, accomodate the groove has been seted up to the both sides of disk seat, two accomodate the inside in groove and be provided with seal assembly, seal assembly includes the sealing block, two sealing block sliding connection in the inside both sides of disk seat, the seal groove has all been seted up to the both sides of valve clack, sealing block and seal groove assorted, two one side that the sealing block is close to accomodating the groove is provided with the drive the sealing block gets into the inside first spring of seal groove, the inside of fixed cover is provided with the drive of valve clack pivoted actuating assembly.

Further, two sealing blocks are close to the middle part fixedly connected with movable rods on one side of the storage groove, one ends of the movable rods are connected with the storage groove in an inserted mode, the first springs are sleeved on the outer sides of the movable rods, and the first springs are arranged between the sealing blocks and the inner walls of the storage groove.

Further, the drive assembly includes the pivot, pivot swing joint in fixed cover with the inside of footstock, the top fixedly connected with of pivot rotates the hand wheel, the spacing groove has all been seted up to the both sides of pivot, the pivot passes through spacing groove with valve clack sliding connection.

Further, the cavity has been seted up to the inside of valve clack, the bottom fixedly connected with trapezium piece of pivot, trapezium piece slides in the inside of cavity, the both sides of cavity all alternate to be connected with the slide bar, two the one end and the trapezium piece both sides contact of slide bar are connected, two the other end of slide bar stretches into the inside of seal groove, two the outside cover of slide bar one end is equipped with the second spring, the second spring set up in between the one end of slide bar and the cavity inner wall.

Further, one side of the two sealing blocks, which is close to the middle part of the valve seat, is fixedly connected with a sealing gasket, and the outer side of the sealing blocks is provided with an anti-corrosion layer.

The technical scheme provided by the application has at least the following technical effects or advantages:

when making valve clack closure state through the elasticity of first spring, the sealing block can get into in the seal groove, seal the valve clack through the cooperation of sealing block and valve clack upper seal groove, spring elasticity promotes sealed pad and valve clack and hugs closely, sealed effect is better, the inside of valve clack is deepened to sealed pad, the edge takes place little wearing and tearing and also can not influence sealed effect, the sealing block can be spacing to the valve clack for the valve clack can not remove at will during closure, the stability of valve clack has been improved, the sealing block surface of metal material can set up the corrosion protection layer, can prevent that seal structure from being corroded, the life of soft seal butterfly valve has been improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a butterfly valve according to an embodiment of the disclosure;

FIG. 2 is a schematic structural view of a seal block according to an embodiment of the present application;

FIG. 3 is a schematic view of a spring according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a trapezoid block according to an embodiment of the present application;

in the figure: 10. a valve seat; 20. a valve flap; 30. a fixed sleeve; 40. a top base; 50. a seal assembly; 60. a drive assembly; 70. a storage groove; 80. sealing grooves; 90. a cavity; 51. a sealing block; 52. a sealing gasket; 53. a movable rod; 54. a first spring; 61. a rotating shaft; 62. a limit groove; 63. rotating a hand wheel; 64. a trapezoid block; 65. and a slide bar.

Detailed Description

The embodiment of the application discloses corrosion-resistant soft seal butterfly valve makes sealing block 51 and sealing pad 52 stretch into the inside of valve clack 20 outside seal groove 80 through the elasticity of first spring 54, and sealed effect is better, has also reduced the influence of sealing pad 52 surface wear to sealed effect simultaneously, and sealing block 51 also makes valve clack 20 when closed more stable with the cooperation of seal groove 80.

In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

Referring to fig. 1, fig. 2 and fig. 3, this embodiment provides a corrosion-resistant soft sealing butterfly valve, including disk seat 10, disk seat 10's middle part rotates and is connected with valve clack 20, disk seat 10's top is fixed and is equipped with fixed cover 30, fixed cover 30's top fixedly connected with footstock 40, storage groove 70 has been seted up to disk seat 10's both sides, the inside of two storage grooves 70 is provided with sealing component 50, sealing component 50 includes sealing block 51, sealing pad 52, movable rod 53, first spring 54, two sealing block 51 sliding connection are in the both sides of disk seat 10 inside, sealing groove 80 has all been seted up to valve clack 20's both sides, sealing block 51 and sealing groove 80 assorted, sealing pad 52 fixed connection is in one side that sealing block 51 is close to disk seat 10 middle part, movable rod 53 fixed connection is in one side that sealing block 51 kept away from disk seat 10 middle part, movable rod 53 and storage groove 70 alternate connection, the outside of movable rod 53 is located in the movable rod 53, and the first spring 54 cover is located in the outside of movable rod 53, and first spring 54 sets up between storage groove 70 inner wall and sealing block 51, when disk seat 20 rotates and closes, the limit side and sealing block 51 contact, sealing block 51 is located in sealing block 51, sealing block 51 and sealing block 51 seal 20's side, sealing block 20 and sealing block 20's side and sealing block 20 track and sealing block 51 are located in the sealing groove 52's side and sealing pad 52's side seal groove 52, sealing pad 52 is compressed tightly and sealing pad 52, the effect is prevented from being compressed by sealing pad 52, the seal 20, the seal is compressed seal 20, the effect is improved when the sealing pad 20 is compressed in the side and the sealing pad 20, the sealing pad is compressed in the side and the sealing pad 20's side.

Referring to fig. 1 and 4, a driving component 60 for driving the valve clack 20 to rotate is disposed in the fixing sleeve 30, the driving component 60 includes a rotating shaft 61, the rotating shaft 61 is movably connected in the fixing sleeve 30 and the top seat 40, a rotating hand wheel 63 is fixedly connected at the top of the rotating shaft 61, two limiting grooves 62 are formed on two sides of the rotating shaft 61, a cavity 90 is formed in the valve clack 20, limiting blocks matched with the limiting grooves 62 are fixedly disposed on two sides of the top and bottom of the cavity 90, a trapezoid block 64 is fixedly connected at the bottom of the rotating shaft 61, the trapezoid block 64 slides in the cavity 90, two sliding rods 65 are connected on two sides of the cavity 90 in a penetrating manner, one end of each sliding rod 65 contacts with an inclined surface of the trapezoid block 64, the other end of each sliding rod 65 extends into the sealing groove 80, a second spring is sleeved on the outer side of one end of each sliding rod 65, the second spring is disposed between the inner wall of the cavity 90 and one end of each sliding rod 65, and the two sliding rods 65 are enabled to move towards two sides by moving the rotating shaft 61 upwards, the sealing blocks 51 and the sealing pad 52 in the sealing groove 80 are enabled to be abutted against the sealing groove 80, and the sealing blocks 61 in the sealing block 80 can smoothly drive the valve clack 20 to rotate, and the butterfly valve is opened.

The present application may illustrate its functional principles by the following modes of operation:

when the butterfly valve needs to be closed, the hand wheel 63 is rotated, the rotating shaft 61 drives the valve clack 20 to rotate in the valve seat 10, the side of the valve clack 20 is contacted with the two sealing blocks 51, the sealing blocks 51 are stressed to move towards the inside of the containing groove 70 along the movable rod 53, the first spring 54 at the outer side of the movable rod 53 is compressed, when the valve clack 20 is closed, the first spring 54 in a compressed state drives the sealing blocks 51 and the sealing gasket 52 to extend into the sealing grooves 80 at the two sides of the valve clack 20, the sealing gasket 52 is attached to the sealing grooves 80, the valve clack 20 is sealed, the abrasion of the sealing gasket 52 in the sealing grooves 80 does not influence the sealing performance, the corrosion-proof layer at the outer side of the sealing blocks 51 can prevent the sealing structure from being corroded, when the butterfly valve needs to be opened, the rotating shaft 61 is upwards moved, the trapezoidal blocks 64 at the bottom of the rotating shaft 61 are upwards moved in the cavity 90, the two sliding rods 65 which are in inclined contact with the trapezoidal blocks 64 are moved towards the two sides, the sealing blocks 51 in the sealing groove 80 are pushed out by the original sliding blocks 65, the rotating shaft 61 can smoothly drive the valve clack 20 to rotate, and thus the butterfly valve clack 20 is opened, and the sealing block 80 is not tightly attached to the sealing blocks 51 due to the second spring force.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, within the scope of the present application, should apply to the present application, and all equivalents and modifications as fall within the scope of the present application.

Claims (5)

1. The utility model provides a corrosion-resistant soft seal butterfly valve, includes disk seat (10), the middle part of disk seat (10) rotates and is connected with valve clack (20), the fixed cover (30) that is equipped with in top of disk seat (10), the top fixedly connected with footstock (40) of fixed cover (30), a serial communication port, accomodate groove (70) have been seted up to the both sides of disk seat (10), two accomodate the inside of groove (70) is provided with seal assembly (50), seal assembly (50) include sealing block (51), two sealing block (51) sliding connection in the inside both sides of disk seat (10), seal groove (80) have all been seted up to the both sides of valve clack (20), sealing block (51) and seal groove (80) assorted, two one side that sealing block (51) are close to accomodate groove (70) is provided with the drive sealing block (51) get into inside first spring (54) of seal groove (80), the inside of fixed cover (30) is provided with the drive assembly (60) of valve clack (20).

2. The corrosion-resistant soft sealing butterfly valve according to claim 1, wherein a movable rod (53) is fixedly connected to the middle part of one side of the sealing blocks (51) close to the containing groove (70), one end of the movable rod (53) is connected with the containing groove (70) in a penetrating mode, the first spring (54) is sleeved on the outer side of the movable rod (53), and the first spring (54) is arranged between the sealing blocks (51) and the inner wall of the containing groove (70).

3. The corrosion-resistant soft sealing butterfly valve according to claim 1, wherein the driving assembly (60) comprises a rotating shaft (61), the rotating shaft (61) is movably connected to the inside of the fixed sleeve (30) and the top seat (40), a rotating hand wheel (63) is fixedly connected to the top of the rotating shaft (61), limit grooves (62) are formed in two sides of the rotating shaft (61), and the rotating shaft (61) is slidably connected with the valve clack (20) through the limit grooves (62).

4. A corrosion-resistant soft sealing butterfly valve according to claim 3, wherein a cavity (90) is formed in the valve clack (20), a trapezoid block (64) is fixedly connected to the bottom of the rotating shaft (61), the trapezoid block (64) slides in the cavity (90), sliding rods (65) are connected to two sides of the cavity (90) in a penetrating mode, one ends of the two sliding rods (65) are connected with two sides of the trapezoid block (64) in a contacting mode, the other ends of the two sliding rods (65) extend into the sealing groove (80), a second spring is sleeved on the outer side of one ends of the two sliding rods (65), and the second spring is arranged between one ends of the sliding rods (65) and the inner wall of the cavity (90).

5. The corrosion-resistant soft sealing butterfly valve according to claim 1, wherein a sealing gasket (52) is fixedly connected to one side of the two sealing blocks (51) close to the middle of the valve seat (10), and an anti-corrosion layer is arranged on the outer side of the sealing blocks (51).

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