CN216478988U - Butterfly valve bidirectional sealing structure - Google Patents
Butterfly valve bidirectional sealing structure Download PDFInfo
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- CN216478988U CN216478988U CN202121446222.8U CN202121446222U CN216478988U CN 216478988 U CN216478988 U CN 216478988U CN 202121446222 U CN202121446222 U CN 202121446222U CN 216478988 U CN216478988 U CN 216478988U
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Abstract
The utility model discloses a bidirectional sealing structure of a butterfly valve, which belongs to the technical field of valves and comprises a valve body, wherein a butterfly plate is fixedly arranged inside the valve body, a clamping groove is formed in the butterfly plate, a sealing strip is fixedly arranged inside the clamping groove, a pressing ring is fixedly arranged at the top of the sealing strip, a valve body sealing ring is fixedly arranged on one side of the sealing strip, a fastening bolt is fixedly arranged at the top of the pressing ring, and a shaft lever is fixedly arranged inside the butterfly plate; through setting up the sealing strip, can be at the in-process that the butterfly valve used, seal the processing to the both ends of valve body for the inside of valve body forms two way seal structure, and under the effect of this structure, when the medium flow direction butterfly plate, makes the forward of valve body can the pressure-bearing, and reverse also can the pressure-bearing, has avoided the butterfly valve to appear revealing problem because of the impact that receives pressure, thereby has improved the sealed effect of butterfly valve.
Description
Technical Field
The utility model belongs to the technical field of equipment for valves, and particularly relates to a bidirectional sealing structure for a butterfly valve.
Background
Butterfly valves are valves that use a reciprocating rotation of a disk-type shutter to open, close, or regulate the flow of a medium. The butterfly valve has the advantages of simple structure, small volume, light weight, material consumption saving, small installation size, small driving moment and simple and convenient operation, also has good flow regulation function and closing and sealing characteristics, is one of the fastest valve varieties developed in recent decades, is called a flap valve, can be used for controlling the opening and closing of a low-pressure pipeline medium, and is a valve which is opened and closed by rotating around a valve shaft, wherein a closing part is a disc.
However, most of the existing butterfly valves have a one-way sealing structure, and during the use process, when the medium flows to the butterfly plate and the butterfly plate is subjected to a reverse pressure, the butterfly valve may leak, so that a two-way sealing structure of the butterfly valve is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bidirectional sealing structure of a butterfly valve, which aims to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a two-way seal structure of butterfly valve, includes the valve body, the inside fixed mounting of valve body has the butterfly plate, the draw-in groove has been seted up to the inside of butterfly plate, the inside fixed mounting of draw-in groove has the sealing strip, the top fixed mounting of sealing strip has the clamping ring, and one side fixed mounting of sealing strip has the valve body sealing washer, the top fixed mounting of clamping ring has fastening bolt, the inside fixed mounting of butterfly plate has the axostylus axostyle, the one end fixed mounting of axostylus axostyle has the end cover, and the outside fixed mounting of axostylus axostyle has a sealing washer No. one, the outside fixed mounting of axostylus axostyle has a sealing washer No. two.
As a preferred embodiment, the butterfly plate is fixedly connected with the valve body through a hexagon bolt, and the butterfly plate is matched with the shaft rod.
As a preferred embodiment, the sealing strip is T-shaped, the sealing strip and the clamping groove are movably sleeved, the number of the sealing strips is two, and the two sealing strips are respectively arranged at two ends of the butterfly plate.
In a preferred embodiment, the pressing ring is matched with the sealing strip, and the pressing ring is fixedly connected with the butterfly plate through a fastening bolt.
In a preferred embodiment, the valve body sealing ring is tightly connected with the sealing strip, and the valve body sealing ring is positioned inside the valve body.
As a preferred embodiment, the shaft rod is fixedly connected with the end cover through a fixing bolt, the shaft rod is tightly sleeved with the first sealing ring, and the first sealing ring and the second sealing ring are equal in size.
Compared with the prior art, the utility model has the beneficial effects that:
according to the bidirectional sealing structure of the butterfly valve, the sealing strips are arranged, so that two ends of the valve body can be sealed in the using process of the butterfly valve, the bidirectional sealing structure is formed in the valve body, and under the action of the structure, when a medium flows to the butterfly plate, the valve body can bear pressure in the forward direction and can also bear pressure in the reverse direction, the problem that the butterfly valve leaks due to the impact of pressure is avoided, and the sealing effect of the butterfly valve is improved;
according to the bidirectional sealing structure of the butterfly valve, the clamping groove, the pressing ring, the sealing strip and the fastening bolt are arranged, the pressing ring and the butterfly plate can be fixedly connected together in the use process of the butterfly valve, and the position of the sealing strip is limited under the extrusion of the pressing ring and the butterfly plate, so that the sealing strip is fixedly arranged inside the clamping groove, the problem that the butterfly valve leaks due to the fact that internal accessories of the butterfly valve deviate is avoided, and the sealing performance of the butterfly valve is improved;
this butterfly valve two-way seal structure through setting up axostylus axostyle, end cover, a sealing washer and No. two sealing washers, can use the gim peg at the in-process that the butterfly valve used for the end cover seals the processing to one side of butterfly valve, uses a sealing washer and No. two sealing washers to seal the both sides of axostylus axostyle after that, has avoided the butterfly valve to appear the condition of leaking because of wearing and tearing, thereby has improved the life of butterfly valve.
Drawings
FIG. 1 is a front cross-sectional view of a structure of the present invention;
FIG. 2 is an enlarged view of the position A of FIG. 1 according to the present invention.
In the figure: 1. a valve body; 2. a butterfly plate; 3. a card slot; 4. a sealing strip; 5. pressing a ring; 6. a valve body sealing ring; 7. fastening a bolt; 8. a shaft lever; 9. an end cap; 10. a first sealing ring; 11. and a second sealing ring.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.
Referring to fig. 1, in order to improve the installation rate of the butterfly valve, the utility model provides a bidirectional sealing structure of the butterfly valve, which includes a valve body 1, a butterfly plate 2 is fixedly installed inside the valve body 1, and a shaft rod 8 is fixedly installed inside the butterfly plate 2, wherein the butterfly plate 2 is fixedly connected with the valve body 1 through a hexagon bolt, and the butterfly plate 2 is matched with the shaft rod 8; through using the hex bolts, can carry out fixed mounting in the inside of valve body 1 to butterfly plate 2 at the in-process that the butterfly valve used, and can be in the same place installing between butterfly plate 2 and axostylus axostyle 8, avoided the problem that the butterfly valve is not convenient for install to the installation rate of butterfly valve has been improved.
Referring to fig. 1 and 2, in order to improve the sealing effect of the butterfly valve, a clamping groove 3 is formed in a butterfly plate 2, and a sealing strip 4 is fixedly installed in the clamping groove 3, wherein the sealing strip 4 is T-shaped, the sealing strip 4 and the clamping groove 3 are movably sleeved, the number of the sealing strips 4 is two, and the two sealing strips 4 are respectively arranged at two ends of the butterfly plate 2; through using sealing strip 4, can be at the in-process that the butterfly valve used, seal the processing to the both ends of valve body 1 for the inside of valve body 1 forms two way seal structure, and under the effect of this structure, when the medium flow direction butterfly plate 2, makes the forward of valve body 1 can the pressure-bearing, and reverse also can the pressure-bearing, has avoided the butterfly valve to appear the problem of revealing because of receiving the impact of pressure, thereby has improved the sealed effect of butterfly valve.
Referring to fig. 1 and 2, in order to improve the sealing performance of the butterfly valve, a pressing ring 5 is fixedly mounted on the top of a sealing strip 4, and a fastening bolt 7 is fixedly mounted on the top of the pressing ring 5, wherein the pressing ring 5 is matched with the sealing strip 4, and the pressing ring 5 is fixedly connected with a butterfly plate 2 through the fastening bolt 7; through using fastening bolt 7, can be in the same place fixed connection between clamping ring 5 and the butterfly plate 2 at the in-process that the butterfly valve used, and under extrusion between them, carry out spacing processing to the position of sealing strip 4 for sealing strip 4 fixed mounting has avoided the butterfly valve to take place the skew because of inside accessory, the problem of seepage appears in the inside of draw-in groove 3, thereby has improved the leakproofness of butterfly valve.
Referring to fig. 1 and 2, in order to improve the use effect of the butterfly valve, a valve body sealing ring 6 is fixedly installed on one side of a sealing strip 4, wherein the valve body sealing ring 6 is tightly connected with the sealing strip 4, and the valve body sealing ring 6 is located inside a valve body 1; through using valve body sealing washer 6, can be at the in-process that the butterfly valve used, seal the processing to the inboard of valve body 1 for in close contact with between valve body 1 and the pipeline has avoided appearing revealing the problem between butterfly valve and the pipeline, thereby has improved the result of use of butterfly valve.
Referring to fig. 1, in order to improve the service life of the butterfly valve, an end cover 9 is fixedly installed at one end of a shaft rod 8, a first sealing ring 10 is fixedly installed outside the shaft rod 8, and a second sealing ring 11 is fixedly installed outside the shaft rod 8, wherein the shaft rod 8 is fixedly connected with the end cover 9 through a fixing bolt, the shaft rod 8 is tightly sleeved with the first sealing ring 10, and the first sealing ring 10 is equal to the second sealing ring 11 in size; through using the gim peg, can be at the in-process that the butterfly valve used for end cover 9 seals the processing to one side of butterfly valve, uses a sealing washer 10 and No. two sealing washers 11 to seal the both sides of axostylus axostyle 8 after that, has avoided the butterfly valve to appear the condition of leaking because of wearing and tearing, thereby has improved the life of butterfly valve.
The working principle and the using process of the utility model are as follows: firstly, a butterfly plate 2 is fixedly arranged inside a valve body 1 by using hexagon bolts, the butterfly plate 2 and a shaft lever 8 can be arranged together, then a clamping bolt 7 is used for fixedly connecting a pressing ring 5 and the butterfly plate 2 together, and under the extrusion of the two, the position of a sealing strip 4 is limited, so that the sealing strip 4 is fixedly arranged inside a clamping groove 3, meanwhile, a fixing bolt is used, an end cover 9 is used for sealing one side of the butterfly valve, then the sealing strip 4 is used for sealing two ends of the valve body 1, so that a bidirectional sealing structure is formed inside the valve body 1, and under the action of the structure, when a medium flows to the butterfly plate 2, the forward direction of the valve body 1 can bear pressure, and the reverse direction can also bear pressure, the problem that the butterfly valve is leaked due to the impact of pressure is avoided, and the sealing effect of the butterfly valve is improved, then use a sealing washer 10 and No. two sealing washers 11 to seal the both sides of axostylus axostyle 8, and can use valve body sealing washer 6, seal the processing to the inboard of valve body 1 for in close contact with has appeared between butterfly valve and the pipeline in between the valve body 1 and the pipeline the problem of revealing has been avoided, thereby has improved the result of use of butterfly valve.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a butterfly valve two-way seal structure, includes valve body (1), its characterized in that: the inside fixed mounting of valve body (1) has butterfly plate (2), draw-in groove (3) have been seted up to the inside of butterfly plate (2), the inside fixed mounting of draw-in groove (3) has sealing strip (4), the top fixed mounting of sealing strip (4) has clamping ring (5), and one side fixed mounting of sealing strip (4) has valve body sealing washer (6), the top fixed mounting of clamping ring (5) has fastening bolt (7), the inside fixed mounting of butterfly plate (2) has axostylus axostyle (8), the one end fixed mounting of axostylus axostyle (8) has end cover (9), and the outside fixed mounting of axostylus axostyle (8) has sealing washer (10) No. one, the outside fixed mounting of axostylus axostyle (8) has sealing washer (11) No. two.
2. A butterfly valve bidirectional sealing structure according to claim 1, characterized in that: the butterfly plate (2) is fixedly connected with the valve body (1) through a hexagon bolt, and the butterfly plate (2) is matched with the shaft rod (8).
3. A butterfly valve bidirectional sealing structure according to claim 1, characterized in that: the shape of sealing strip (4) is the T type, and the activity cup joints between sealing strip (4) and draw-in groove (3), the quantity of sealing strip (4) is two, and two sealing strips (4) set up respectively in the both ends of butterfly plate (2).
4. A butterfly valve bidirectional sealing structure according to claim 1, characterized in that: the pressing ring (5) is matched with the sealing strip (4), and the pressing ring (5) is fixedly connected with the butterfly plate (2) through a fastening bolt (7).
5. A butterfly valve bidirectional sealing structure according to claim 1, characterized in that: the valve body sealing ring (6) is tightly connected with the sealing strip (4), and the valve body sealing ring (6) is positioned inside the valve body (1).
6. A butterfly valve bidirectional sealing structure according to claim 1, characterized in that: the shaft lever (8) is fixedly connected with the end cover (9) through a fixing bolt, the shaft lever (8) is tightly sleeved with the first sealing ring (10), and the first sealing ring (10) and the second sealing ring (11) are equal in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121446222.8U CN216478988U (en) | 2021-06-28 | 2021-06-28 | Butterfly valve bidirectional sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121446222.8U CN216478988U (en) | 2021-06-28 | 2021-06-28 | Butterfly valve bidirectional sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478988U true CN216478988U (en) | 2022-05-10 |
Family
ID=81394026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121446222.8U Active CN216478988U (en) | 2021-06-28 | 2021-06-28 | Butterfly valve bidirectional sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478988U (en) |
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2021
- 2021-06-28 CN CN202121446222.8U patent/CN216478988U/en active Active
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