CN211039717U - Sealing structure of flange type soft sealing butterfly valve - Google Patents

Sealing structure of flange type soft sealing butterfly valve Download PDF

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Publication number
CN211039717U
CN211039717U CN201921814858.6U CN201921814858U CN211039717U CN 211039717 U CN211039717 U CN 211039717U CN 201921814858 U CN201921814858 U CN 201921814858U CN 211039717 U CN211039717 U CN 211039717U
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China
Prior art keywords
hole
butterfly valve
circular
water
flange
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CN201921814858.6U
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Chinese (zh)
Inventor
徐秋明
胡建
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Nantong J Reliance Valves Co ltd
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Nantong J Reliance Valves Co ltd
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Abstract

The utility model discloses a seal structure of flange formula soft seal butterfly valve, including the drum, the connection control valve is rotated to one side of drum, the control valve rotates through the pivot and connects the water-stop sheet, the circular recess is seted up to the outer lane of water-stop sheet, the sealed pad of fixed connection in the circular recess, the inner wall of circular recess is seted up the round hole and is run through the inner wall of circular recess, the round hole is embedded to have the nut, nut threaded connection lead screw, the one end of lead screw is rotated and is connected the briquetting, the inside of drum is passed through bolt fixed connection circular block, the through-hole is seted up to one side surface of circular block, the round of circular block one side and through-hole is equipped with the cylinder pole, the rectangular hole is seted up on one side surface of circular block, the welding spring in the rectangular hole, the. The device can increase the leakproofness of butterfly valve to guarantee that the butterfly valve avoids leaking at the in-process that uses, can also conveniently dismantle the change.

Description

Sealing structure of flange type soft sealing butterfly valve
Technical Field
The utility model belongs to the technical field of seal structure, concretely relates to seal structure of flange formula soft seal butterfly valve.
Background
Traditional is sealed to the butterfly valve, only bond sealed pad in the connector department of butterfly valve, then with pipeline and butterfly valve fixed connection, in the use, can play the effect that prevents to leak, but such sealing method, people's demand can not be satisfied, because, this kind of seal structure, it is impaired to make sealed pad very easily, will lose sealed effect, and, the inside water-stop sheet of current butterfly valve, also can not be with the inside seal of butterfly valve, will lead to, close the water-stop sheet, still have rivers to go out, therefore, we provide a seal structure of flange formula soft seal butterfly valve, in order to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a seal structure of flange formula soft seal butterfly valve to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a sealing structure of a flange type soft sealing butterfly valve comprises a cylinder, wherein one side of the cylinder is rotatably connected with a control valve, the control valve is rotatably connected with a water-stop plate through a rotating shaft, the outer ring of the water-stop plate is provided with a circular groove, a first sealing gasket is fixedly connected in the circular groove, the inner wall of the circular groove is provided with a round hole and penetrates through the inner wall of the circular groove, a nut is embedded in the round hole and is in threaded connection with a lead screw, one end of the lead screw is rotatably connected with a pressing block, the inside of the cylinder is fixedly connected with a circular block through a bolt, a through hole is formed in one side surface of the circular block, a cylindrical rod is arranged on one side of the circular block and on one circle of the through hole, a second sealing gasket is sleeved on the cylindrical rod, a rectangular hole is formed in one side surface of the circular block, a spring is welded in, the upper surface of the baffle is provided with a first threaded hole, the bottom of the rectangular hole is provided with a second threaded hole, and one side surface of the cylinder is provided with a third threaded hole.
Preferably, the number of the cylindrical rods is four, the cylindrical rods are respectively arranged at the positions of the upper surface, the lower surface, the left surface and the right surface of one side of the circular block, and the length of each cylindrical rod is equal to the thickness of the second sealing gasket.
The cylindrical rod is arranged at the upper, lower, left and right positions of one side surface of the circular block, so that the second sealing gasket can be conveniently sleeved on the cylindrical rod to limit the cylindrical rod.
Preferably, the circular groove is arranged in the middle of the outer ring on the water-stop sheet, the width of the circular groove is larger than the thickness of the first sealing gasket by 2mm, and the diameter of the first sealing gasket is larger than the inner diameter of the cylinder.
The provision of the width of the circular groove being greater than the thickness of the first gasket facilitates the first gasket to be mounted in the circular groove and thereby seal the interior of the cylinder.
Preferably, one side of the cylinder is in threaded connection with the pipeline, a bump is arranged on one side of the pipeline, and a hollow part is arranged inside the bump and communicated with the pipeline.
The side of the pipe is provided with a lug which is communicated with the pipe, and the lug can be installed in the cylinder, so that the sealing performance between the pipe and the cylinder is improved.
Preferably, the rectangular holes are formed in one side of the second sealing gasket, the rectangular holes are four and are respectively formed in the bottom of the left side and the bottom of the right side of the second sealing gasket, and the depth of each rectangular hole is half of the thickness of the round block.
This set up the rectangle hole setting and at the surface of circular block and the left and right sides of second sealed pad, can conveniently be fixed with the second sealed pad, prevent to rotate.
Preferably, the diameter of the first threaded hole in the baffle plate is the same as that of the second threaded hole in the rectangular hole.
The diameter that this set up first screw hole and second screw hole is the same, can conveniently fix the baffle through the bolt.
The utility model discloses a technological effect and advantage: this seal structure of flange formula soft seal butterfly valve, set up first sealed pad through the outer lane at the water-stop sheet, can effectively prevent to close the butterfly valve, still go out water, seal up through the inside at the drum sets up the second, can increase the leakproofness of pipeline and butterfly valve, prevent to leak, through set up the baffle on the circular block, can conveniently seal up fixed to the second, increase the live time, the device can increase the leakproofness of butterfly valve, avoid leaking in the in-process of guaranteeing the butterfly valve using, can also conveniently dismantle the change, and convenient for operation, and is simple.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of a water-stop sheet;
FIG. 3 is a schematic view of a piping structure;
FIG. 4 is a schematic view of a rectangular hole structure.
In the figure: 1. a cylinder; 2. a control valve; 3. a water-stop sheet; 4. a circular groove; 5. a first gasket; 6. a circular hole; 7. a nut; 8. a screw rod; 9. briquetting; 10. a circular block; 11. a through hole; 12. a cylindrical rod; 13. a rectangular hole; 14. a spring; 15. a baffle plate; 16. a first threaded hole; 17. a second threaded hole; 18. a third threaded hole; 19. a second gasket; 20. a pipeline.
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.
The utility model provides a sealing structure of a flange type soft sealing butterfly valve as shown in figures 1-4, which comprises a cylinder 1, wherein one side of the cylinder 1 is rotatably connected with a control valve 2, the control valve 2 is rotatably connected with a water-stop plate 3 through a rotating shaft, the outer ring of the water-stop plate 3 is provided with a circular groove 4, a first sealing gasket 5 is fixedly connected in the circular groove 4, the inner wall of the circular groove 4 is provided with a round hole 6 and penetrates through the inner wall of the circular groove 4, the round hole 6 is internally embedded with a nut 7, the nut 7 is in threaded connection with a screw rod 8, one end of the screw rod 8 is rotatably connected with a pressing block 9, the inside of the cylinder 1 is fixedly connected with a circular block 10 through a bolt, one side surface of the circular block 10 is provided with a through hole 11, one side of the circular block 10 and one circle of the through hole 11 are provided with a cylindrical rod 12, the cylindrical rod 12 is sleeved with a, the spring 14 is welded in the rectangular hole 13, the other end of the spring 14 is welded with a baffle plate 15, the baffle plate 15 is rotatably connected with the rectangular hole 13 through a rotating rod, a first threaded hole 16 is formed in the upper surface of the baffle plate 15, a second threaded hole 17 is formed in the bottom of the rectangular hole 13, and a third threaded hole 18 is formed in one side surface of the cylinder 1.
Specifically, four cylindrical rods 12 are provided, the cylindrical rods 12 are respectively provided at positions which are vertically and horizontally symmetrical on one side surface of the circular block 10, and the length of the cylindrical rods 12 is the same as the thickness of the second gasket 19.
Specifically, circular groove 4 sets up and is the position in the middle of the outer lane on water-stop sheet 3, the width of circular groove 4 is greater than 5 thickness 2mm of first sealed pad and the diameter of 5 of first sealed pad is greater than the internal diameter of drum 1.
Specifically, one side of the cylinder 1 is in threaded connection with the pipeline 20, a bump is arranged on one side of the pipeline, and a hollow part is arranged inside the bump and communicated with the pipeline 20.
Specifically, the rectangular holes 13 are disposed at one side of the second gasket 19, the rectangular holes 13 are four and disposed at the bottom of the left and right sides of the second gasket 19, respectively, and the depth of the rectangular holes 13 is set to be half of the thickness of the circular block 10.
Specifically, the diameter of the first threaded hole 16 in the baffle plate 15 is the same as that of the second threaded hole 17 in the rectangular hole 13.
To sum up, in the sealing structure of the flange type soft sealing butterfly valve, when in use, the convex block on the pipeline 20 extends into the cylinder 1, one end of the convex block is abutted against the second sealing gasket 19, then the pipeline 20 is fixedly connected through the third threaded hole 18 through the bolt, water can be introduced, when water is discharged, the control valve 2 is rotated to enable the water baffle plate 3 to rotate and be in a state of being parallel to the upper surface of the cylinder 1, so that the water can flow out through the cylinder 1, when the butterfly valve is closed, the control valve 2 is reversely rotated to enable the water baffle plate 3 to seal the cylinder 1, meanwhile, the edge of the first sealing gasket 5 can extrude the inner wall of the cylinder 1, so that the outflow of the water between the water baffle plate 3 and the pipeline is prevented, so that the water baffle plate 3 can completely block the water, if the first sealing gasket 5 needs to be replaced, only the press block 8 needs to be rotated, so that the press block 9 can reduce the extrusion of, thereby alright take out first sealed 5 of filling up, then water is detained in the inboard of water-stop sheet 3, seal 19 through the second, prevent that pipeline 20 and drum 1 junction from leaking, because the one end setting of pipeline 20 is in the inside of drum 1, can make the inside that water directly enters into drum 1, reduce revealing of water, if the sealed 19 of second packing is to be changed, only need to twist off the bolt on baffle 15, alright take out the sealed 19 of second packing, the device can increase the leakproofness of butterfly valve, in order to guarantee that the butterfly valve avoids leaking at the in-process that uses, can also conveniently dismantle the change, moreover, the steam generator is simple in structure, high durability and convenient use, and convenient popularization and popularization are realized.
Finally, it should be noted that: 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 variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides a seal structure of flange formula soft seal butterfly valve, includes drum (1), one side of drum (1) is rotated and is connected control valve (2), control valve (2) are rotated through the pivot and are connected water-stop sheet (3), its characterized in that: the water-stop plate is characterized in that the outer ring of the water-stop plate (3) is provided with a circular groove (4), the circular groove (4) is internally fixedly connected with a first sealing gasket (5), the inner wall of the circular groove (4) is provided with a round hole (6) and penetrates through the inner wall of the circular groove (4), the round hole (6) is embedded with a nut (7), the nut (7) is in threaded connection with a screw rod (8), one end of the screw rod (8) is rotatably connected with a pressing block (9), the cylinder (1) is fixedly connected with a circular block (10) through a bolt, one side surface of the circular block (10) is provided with a through hole (11), one side of the circular block (10) and one circle of the through hole (11) are provided with a cylindrical rod (12), the cylindrical rod (12) is sleeved with a second sealing gasket (19), one side surface of the circular block (10) is provided with a rectangular hole (13), the other end of the spring (14) is welded with a baffle (15), the baffle (15) is rotatably connected with the rectangular hole (13) through a rotating rod, a first threaded hole (16) is formed in the upper surface of the baffle (15), a second threaded hole (17) is formed in the bottom of the rectangular hole (13), and a third threaded hole (18) is formed in one side surface of the cylinder (1).
2. A seal structure of a flange-type soft seal butterfly valve according to claim 1, characterized in that: the number of the cylindrical rods (12) is four, the cylindrical rods (12) are respectively arranged at the positions of the upper side surface, the lower side surface, the left side surface and the right side surface of the circular block (10) in a symmetrical mode, and the length of the cylindrical rods (12) is the same as the thickness of the second sealing gasket (19).
3. A seal structure of a flange-type soft seal butterfly valve according to claim 1, characterized in that: circular recess (4) set up and be the position in the middle of the outer lane on water-stop sheet (3), the width of circular recess (4) is greater than the diameter that first sealed pad (5) thickness 2mm and first sealed pad (5) is greater than the inner diameter of drum (1).
4. A seal structure of a flange-type soft seal butterfly valve according to claim 1, characterized in that: one side of the cylinder (1) is in threaded connection with the pipeline (20), a bump is arranged on one side of the pipeline, and a hollow part communicated with the pipeline (20) is arranged inside the bump.
5. A seal structure of a flange-type soft seal butterfly valve according to claim 1, characterized in that: rectangular hole (13) set up the one side at the sealed pad (19) of second, rectangular hole (13) set up to four and set up the position in the sealed pad (19) left and right sides bottom of second respectively, the degree of depth of rectangular hole (13) sets up to half of circular block (10) thickness.
6. A seal structure of a flange-type soft seal butterfly valve according to claim 1, characterized in that: the diameters of the first threaded hole (16) in the baffle plate (15) and the second threaded hole (17) in the rectangular hole (13) are the same.
CN201921814858.6U 2019-10-28 2019-10-28 Sealing structure of flange type soft sealing butterfly valve Active CN211039717U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921814858.6U CN211039717U (en) 2019-10-28 2019-10-28 Sealing structure of flange type soft sealing butterfly valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921814858.6U CN211039717U (en) 2019-10-28 2019-10-28 Sealing structure of flange type soft sealing butterfly valve

Publications (1)

Publication Number Publication Date
CN211039717U true CN211039717U (en) 2020-07-17

Family

ID=71566572

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921814858.6U Active CN211039717U (en) 2019-10-28 2019-10-28 Sealing structure of flange type soft sealing butterfly valve

Country Status (1)

Country Link
CN (1) CN211039717U (en)

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