CN213744951U - Spherical surface sealing butterfly valve - Google Patents
Spherical surface sealing butterfly valve Download PDFInfo
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- CN213744951U CN213744951U CN202021847834.3U CN202021847834U CN213744951U CN 213744951 U CN213744951 U CN 213744951U CN 202021847834 U CN202021847834 U CN 202021847834U CN 213744951 U CN213744951 U CN 213744951U
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- valve plate
- valve
- baffle
- butterfly valve
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Abstract
The utility model is suitable for a butterfly valve technical field provides a spherical sealing butterfly valve, including the valve plate, the radial edge of valve plate is equipped with two at least flanges that circumference set up, flange and valve plate integrated into one piece, and the valve plate is located the draught tube, and the draught tube is located the lower part of butterfly valve body, is equipped with in the draught tube with valve plate complex spherical groove, is equipped with the protection component on one side that the medium of valve plate flowed in. Therefore, the utility model discloses can enough avoid extra work with the rubber coat on the valve plate, also can realize producing the double seal effect when the butterfly valve is closed, improve the sealing reliability, can effectually reduce the medium and destroy the life of valve plate to the impact of valve plate, prolonged the valve plate.
Description
Technical Field
The utility model relates to a butterfly valve technical field especially relates to a spherical seal butterfly valve.
Background
The butterfly valve is also called flap valve, butterfly valve, mainly by valve block, valve stem, butterfly plate and seal ring make up, the valve block is cylindrical, the axial length is short, embed the butterfly plate, the butterfly valve is suitable for producing the stove, coal gas, natural gas, liquefied petroleum gas, city coal gas, cold and hot air, chemical industry smelting and electricity generation environmental protection, building give the pipeline of carrying various corrosive, non-corrosive fluid medium in the engineering system such as drainage, etc., used for regulating and cutting off the flow of the medium.
Patent No. is CN 201687957U's patent has announced a two flange seal structure rubber coating butterfly plate, and it includes butterfly plate core, the axle sleeve has been arranged respectively at butterfly plate core both ends, and its characterized in that is established on butterfly plate core's central line to the axle sleeve: the surface of the butterfly plate core is adhered with a rubber layer, and the rubber layer positioned at the radial edge of the butterfly plate core is provided with at least two sealing rubber flanges along the circumferential direction of the butterfly plate core; the double-flange sealing structure overcomes the sealing failure caused by the defects of a single-flange sealing structure, such as small pits, small bosses and the like on the surface of a valve seat; the sealing performance can be still kept under the condition that one flange is damaged, and the sealing reliability is improved; however, the rubber layer is sleeved on the butterfly plate, so that an additional work is added, and the workload is increased; and rubber is easy to age, easily drops from the butterfly plate, still needs frequent change, wastes time and energy.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
To foretell defect, the utility model aims to provide a spherical sealing butterfly valve, its simple structure, convenient to use can enough avoid extra work with rubber coat on the valve plate, also can realize producing the double seal effect when the butterfly valve is closed, has improved the sealing reliability, can effectually reduce the destruction of medium to the impact of valve plate, has prolonged the life of valve plate.
In order to realize above-mentioned purpose, the utility model provides a spherical sealing butterfly valve, including the valve plate, the radial edge of valve plate is equipped with two at least flanges that circumference set up, the flange with valve plate integrated into one piece, the valve plate is located the draught tube, the draught tube is located the lower part of butterfly valve body, be equipped with in the draught tube with valve plate complex spherical groove, be equipped with protection component on one side of the medium inflow of valve plate.
According to the utility model discloses a spherical sealing butterfly valve, protection component includes that two are fixed ear on the valve plate, two be connected with the pivot between the fixed ear, the centre of pivot is equipped with the baffle, the baffle includes first baffle and second baffle, first baffle with the second baffle sets up perpendicularly, first baffle with be equipped with elastic element between the valve plate.
According to the utility model discloses a spherical sealing butterfly valve, the shape of second baffle is arc or square.
According to the utility model discloses a spherical sealing butterfly valve, the both ends of valve plate are equipped with axle sleeve and lower axle sleeve respectively, go up axle sleeve and valve rod rigid coupling, the valve rod with be equipped with first O type circle between the valve body.
According to the utility model discloses a spherical sealing butterfly valve, the lower part of through-flow tube be equipped with the corresponding round pin shaft hole of axle sleeve down, down the axle sleeve with the round pin shaft hole rotates to be connected, the round pin shaft hole with be equipped with second O type circle between the round pin axle.
According to the utility model discloses a spherical surface seal butterfly valve, be equipped with the sealing washer in the spherical groove.
According to the utility model discloses a spherical sealing butterfly valve, elastic element is the spring.
The utility model aims to provide a spherical sealing butterfly valve, through setting up the flange that forms with the valve plate is integrated into one piece, can enough avoid extra work of sleeving the rubber layer on the valve plate, can realize producing the double seal effect when the butterfly valve is closed too, can overcome the single flange seal structure and cause the sealing failure when there are defects such as pit, little boss on the surface of the valve seat, and the double flange seal structure can still keep the sealing performance under the damaged condition of one of them flange, has improved the sealing reliability; through setting up protection component, can effectual reduction medium to the destruction of the impact of valve plate, prolonged the life of valve plate. To sum up, the utility model has the advantages that: the double-seal butterfly valve has the advantages that extra work of sleeving the rubber layer on the valve plate can be avoided, the double-seal effect can be achieved when the butterfly valve is closed, the sealing reliability is improved, the damage of the impact of a medium on the valve plate can be effectively reduced, and the service life of the valve plate is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic left side view of the structure of FIG. 1;
FIG. 3 is a schematic structural view of a valve plate in elevation;
FIG. 4 is a schematic view of an operating state of the shield assembly;
FIG. 5 is a schematic view of another operating state of the shield assembly;
FIG. 6 is a schematic structural view of one embodiment of a shield assembly;
FIG. 7 is a schematic structural view of another embodiment of a shield assembly;
in the figure: 1-a valve body, 11-a cocurrent pipe, 111-a pin shaft hole, 112-a second O-shaped ring; 12-spherical groove, 121-sealing ring; 2-valve plate, 21-flange, 22-upper shaft sleeve, 23-lower peripheral sleeve; 3-valve stem, 31-first O-ring; 4-drive mechanism, 5-guard assembly, 51-elastic element, 52-baffle, 521-first baffle, 522-second baffle; 53-rotating shaft, 54-fixing lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 and 2, the utility model provides a spherical surface sealing butterfly valve, which comprises a butterfly valve body 1, wherein the lower part of the valve body 1 is provided with a through flow pipe 11, a valve plate 2 is arranged in the through flow pipe 11, and a spherical groove 12 matched with the valve plate 2 is arranged in the through flow pipe 11; the upper part of the valve plate 2 is connected with the lower part of the valve rod 3, and the upper part of the valve rod 3 is connected with the driving mechanism 4; the valve plate 2 is provided with a protection component 5, the valve plate 2 is provided with at least two flanges 21, and the specific working process of the driving mechanism 4 and the structures and the connection modes of other related matched parts of the butterfly valve are known technologies and are not described in detail herein.
Referring to fig. 4, a sealing ring 121 is preferably disposed in the spherical groove 12, and the sealing ring 121 can improve the sealing performance of the valve plate 2.
The radial edge of valve plate 2 is equipped with the flange 21 with valve plate 2 integrated into one piece's circumference setting, flange 21 is equipped with two at least, can enough avoid extra work with rubber sleeve on valve plate 2 with valve plate 2 integrated into one piece's flange 21, also can prevent that the rubber layer from droing from the valve plate, can also realize producing the double seal effect when the butterfly valve is closed, can overcome single flange seal structure and have little pit, the sealed inefficacy that causes when defects such as little boss at the disk seat surface, and double flange seal structure still can keep sealing performance under the damaged condition of one of them flange, sealing reliability has been improved.
Referring to fig. 3, an upper shaft sleeve 22 and a lower shaft sleeve 23 are respectively arranged at two ends of the valve plate 2, the upper shaft sleeve 22 is fixedly connected with the valve rod 3, and a first O-ring 31 is arranged between the valve rod 3 and the valve body 1 in order to ensure that a medium cannot leak from the joint of the upper shaft sleeve 22 and the valve rod 3; the lower portion of the draft tube 11 is provided with a pin shaft hole 111 corresponding to the lower shaft sleeve 23, the lower shaft sleeve 23 is rotatably connected with the pin shaft hole 111 through a pin shaft, preferably, a second O-ring 112 is arranged between the pin shaft hole 111 and the pin shaft, the second O-ring 112 can prevent a medium from flowing out from between the pin shaft and the pin shaft hole 111, and the first O-ring 31 and the second O-ring 112 can improve the sealing performance of the butterfly valve.
The outer parts of the two shaft sleeves are provided with a protective component 5, and the protective component 5 is positioned on one side where the medium flows in; the protection assembly 5 comprises fixing lugs 54 respectively arranged on the same side of the outer portions of the two shaft sleeves, a rotating shaft 53 is rotatably connected between the two fixing lugs 54, a baffle plate 52 is arranged in the middle of the rotating shaft 53, the baffle plate 52 comprises a first baffle plate 521 and a second baffle plate 522, the first baffle plate 521 and the second baffle plate 522 are vertically arranged, and an elastic element 51 is arranged between the first baffle plate 521 and the valve plate 2.
Referring to fig. 4, when the butterfly valve is closed, the valve plate 2 rotates and pulls the first baffle 521 and the second baffle 522 to rotate through the elastic element 51 until the second baffle 522 is blocked by the pipe wall of the draft pipe 11, the first baffle 521 and the second baffle 522 stop rotating, the valve plate 2 pulls the elastic element 51 to continue rotating until the valve plate 2 is located in the spherical groove 12, and at this time, the protection assembly 5 does not affect the sealing operation of the valve plate 2.
Referring to fig. 5, when the butterfly valve is in an open state, the valve plate 2 rotates and pushes the first baffle 521 and the second baffle 522 to rotate, when the valve plate 2 is fully opened, the first baffle 521 and the valve plate 2 are parallel to each other, the second baffle 522 is located in a medium inflow direction at this time, and the second baffle 522 can block in front of the valve plate 2 to protect an impacted surface of the valve plate 2 and prevent the valve plate 2 from being damaged.
Referring to fig. 6 and 7, preferably, the second baffle 522 is arc-shaped or square, and the second baffle 522 is arc-shaped, so that the second baffle 522 can better adhere to the side surface of the valve plate 2 and can have a better protection effect on the valve plate 2; the second baffle 522 is square in shape, simple in structure and easy to process.
Further, the elastic element 51 is a spring, and the spring is economical and practical.
The utility model discloses a theory of operation is:
when the butterfly valve is closed, the valve plate 2 rotates and pulls the first baffle 521 and the second baffle 522 to rotate through the elastic element 51, until the second baffle 522 is blocked by the pipe wall of the through flow pipe 11, the first baffle 521 and the second baffle 522 stop rotating, the valve plate 2 pulls the elastic element 51 to continue to rotate until the valve plate 2 is positioned in the spherical groove 12, at this time, the protective assembly 5 cannot influence the sealing work of the valve plate 2, and the flange 21 of the valve plate 2 can realize the double sealing effect when the butterfly valve is closed, the sealing failure caused by the fact that a single-flange sealing structure has small pits, small bosses and other defects on the surface of a valve seat can be overcome, the sealing performance of the double-flange sealing structure can be still maintained under the condition that one flange is damaged, and the sealing reliability is improved.
When the butterfly valve is in an open state, the valve plate 2 rotates and pushes the first baffle 521 and the second baffle 522 to rotate, when the valve plate 2 is completely opened, the first baffle 521 is parallel to the valve plate 2, the second baffle 522 at the moment is located in the direction in which media flow, and the second baffle 522 can block the front of the valve plate 2 to protect the impacted surface of the valve plate 2 and prevent the valve plate 2 from being damaged.
To sum up, the flange formed integrally with the valve plate can avoid extra work of sleeving the rubber layer on the valve plate, can realize double sealing effect when the butterfly valve is closed, can overcome sealing failure caused by the single-flange sealing structure when the surface of the valve seat has the defects of small pits, small bosses and the like, and can still maintain sealing performance under the condition that one flange is damaged, thereby improving sealing reliability; through setting up protection component, can effectual reduction medium to the destruction of the impact of valve plate, prolonged the life of valve plate. The utility model has the advantages that: the double-seal butterfly valve has the advantages that extra work of sleeving the rubber layer on the valve plate can be avoided, the double-seal effect can be achieved when the butterfly valve is closed, the sealing reliability is improved, the damage of the impact of a medium on the valve plate can be effectively reduced, and the service life of the valve plate is prolonged.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (7)
1. The utility model provides a spherical surface sealing butterfly valve which characterized in that, includes the valve plate, the radial edge of valve plate is equipped with two at least flanges that circumference set up, the flange with valve plate integrated into one piece, the valve plate is located the draught tube, the draught tube is located the lower part of butterfly valve body, be equipped with in the draught tube with valve plate complex spherical groove, be equipped with protection component on one side that the medium of valve plate flowed in.
2. The spherical sealing butterfly valve according to claim 1, wherein the protection assembly comprises two fixing lugs fixed on the valve plate, a rotating shaft is connected between the two fixing lugs, a baffle is arranged in the middle of the rotating shaft, the baffle comprises a first baffle and a second baffle, the first baffle and the second baffle are arranged perpendicularly, and an elastic element is arranged between the first baffle and the valve plate.
3. The spherical sealing butterfly valve of claim 2, wherein the second retainer is arcuate or square in shape.
4. The spherical sealing butterfly valve according to claim 1, wherein an upper shaft sleeve and a lower shaft sleeve are respectively arranged at two ends of the valve plate, the upper shaft sleeve is fixedly connected with the valve rod, and a first O-shaped ring is arranged between the valve rod and the valve body.
5. The spherical sealing butterfly valve according to claim 4, wherein a pin shaft hole corresponding to the lower shaft sleeve is formed in the lower portion of the through flow pipe, the lower shaft sleeve is rotatably connected with the pin shaft hole, and a second O-shaped ring is arranged between the pin shaft hole and the pin shaft.
6. The spherical sealing butterfly valve of claim 1, wherein a sealing ring is disposed in the spherical groove.
7. The spherical sealing butterfly valve of claim 2, wherein the resilient member is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021847834.3U CN213744951U (en) | 2020-08-28 | 2020-08-28 | Spherical surface sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021847834.3U CN213744951U (en) | 2020-08-28 | 2020-08-28 | Spherical surface sealing butterfly valve |
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| Publication Number | Publication Date |
|---|---|
| CN213744951U true CN213744951U (en) | 2021-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021847834.3U Active CN213744951U (en) | 2020-08-28 | 2020-08-28 | Spherical surface sealing butterfly valve |
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| CN (1) | CN213744951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280133A (en) * | 2021-07-23 | 2021-08-20 | 山东泰恒智能环境科技有限公司 | High barrier propterty butterfly valve |
-
2020
- 2020-08-28 CN CN202021847834.3U patent/CN213744951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280133A (en) * | 2021-07-23 | 2021-08-20 | 山东泰恒智能环境科技有限公司 | High barrier propterty butterfly valve |
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