CN211371319U - Butterfly valve with good sealing performance - Google Patents
Butterfly valve with good sealing performance Download PDFInfo
- Publication number
- CN211371319U CN211371319U CN202020061833.XU CN202020061833U CN211371319U CN 211371319 U CN211371319 U CN 211371319U CN 202020061833 U CN202020061833 U CN 202020061833U CN 211371319 U CN211371319 U CN 211371319U
- Authority
- CN
- China
- Prior art keywords
- valve body
- disc plate
- gasbag
- closed
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 40
- 238000009434 installation Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 101100008047 Caenorhabditis elegans cut-3 gene Proteins 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Images
Abstract
The utility model relates to the field of water valves, in particular to a butterfly valve with good sealing performance, which comprises a disc plate and a valve body, the butterfly valve has the advantages that when the disc plate is closed, the disc plate can be driven by a hand wheel and a valve rod to rotate and close, the disc plate rotates to enable an air bag to be embedded into a chute to slide, the length of the air bag is larger than the width of the chute, the air bag is compressed and discharges redundant gas due to the limitation of the width of the chute, the redundant gas enters two sealing strips through an air duct, the volumes of the two sealing strips expand and are close to the inner wall of the valve body, the sealing performance between the closed valve body and the disc plate is enhanced, the waste of water resources caused by the fact that the disc plate is not closed and is leaked tightly enough is avoided, meanwhile, the air bag is clamped by the chute, the friction force between the chute and the air bag can enhance the stability of connection between the closed disc plate and the valve body, the risk that the, thereby improving the service pressure of the butterfly valve.
Description
Technical Field
The utility model relates to a water valve field especially indicates a butterfly valve that leakproofness is good.
Background
The butterfly valve is also called a flap valve, is a regulating valve with simple structure, can be used for the switch control of low-pressure pipeline media, and is a valve which is opened and closed by rotating around a valve shaft by using a closing part valve clack or a butterfly plate as a disk.
Disclosure of Invention
The utility model provides a butterfly valve that leakproofness is good to the leakproofness of overcoming prior art butterfly valve is relatively poor, appears the problem of leaking easily.
The utility model adopts the following technical scheme: the utility model provides a butterfly valve that leakproofness is good, including dish board and valve body, the dish board is rotatable installs in the inside of valve body, still is equipped with the sealing mechanism who assembles in the dish inboard, sealing mechanism includes mounting groove, sealing strip, air duct, gasbag and spout, the dish board laminating valve body inner wall be equipped with the mounting groove on the surface, the inside symmetry of mounting groove is fixed with the sealing strip, is connected through a plurality of air ducts between two sealing strips and switches on, the gasbag is fixed in the dish board and is close to the valve body inner wall on the surface, and the gasbag covers in the upper surface of sealing strip, and two sealing strips all are connected with the gasbag through the air duct and switch on, and the length of gasbag is greater than the width of spout, the spout is located on the inner wall of valve body.
As a further improvement, the butterfly valve is further provided with limiting blocks, the two limiting blocks are respectively fixed on the inner walls of two sides of the valve body, and when the butterfly plate is closed, the two limiting blocks are respectively attached to the surfaces of two sides of the valve body.
From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: when the disc plate is closed, the valve rod can be driven to rotate through the hand wheel, the disc plate rotates along with the valve rod to be attached to the inner wall of the valve body, the flow of the valve body is cut off, the disc plate rotates to enable the air bag to be embedded into the sliding groove to slide, the length of the air bag is larger than the width of the sliding groove, the air bag can be compressed and discharged redundant gas due to the limitation of the width of the sliding groove, the redundant gas discharged by the air bag can enter the two sealing strips through the air guide pipe, the volumes of the two sealing strips expand to be close to the inner wall of the valve body, the sealing performance between the closed valve body and the disc plate is enhanced, the waste of water resources due to the fact that the disc plate is not closed tightly and water leaks is avoided, meanwhile, the air bag is clamped through the sliding groove, the connecting stability between the closed disc plate and the valve body can be enhanced through the friction force between the sliding groove, thereby improving the service pressure of the butterfly valve.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic top view of the sealing mechanism, disk plate and valve body.
FIG. 3 is a schematic top view of the sealing mechanism and the disk plate.
Fig. 4 is a schematic perspective view of the sealing mechanism and the dish plate.
Fig. 5 is a schematic structural view of the closed dish plate.
Fig. 6 is a schematic structural diagram of a in fig. 5.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 6, the butterfly valve with good sealing performance comprises a disk plate 1 and a valve body 3, wherein the disk plate 1 is rotatably installed inside the valve body 3.
As shown in the attached drawings 2 to 6, a sealing mechanism 4 assembled inside the disc plate 1 is further provided, the sealing mechanism 4 includes an installation groove 41, a sealing strip 42, an air duct 43, an air bag 44 and a sliding groove 45, the surface of the inner wall of the disc plate 1 attached to the valve body 3 is provided with the installation groove 41, the sealing strip 42 is symmetrically fixed inside the installation groove 41, the two sealing strips 42 are connected and conducted through a plurality of air ducts 43, the air bag 44 is fixed on the surface of the disc plate 1 close to the inner wall of the valve body 3, the air bag 44 covers the upper surface of the sealing strip 42, the two sealing strips 42 are connected and conducted with the air bag 44 through the air duct 43, the sealing strip 42 and the air bag 44 are preferably made of synthetic rubber material, and have the advantages of wear resistance, aging resistance and good toughness, the sliding groove 45 is arranged on the inner wall of the valve body 3, the air bag, accessible hand wheel drives valve rod 2 and rotates, the dish board 1 is followed in the effect of valve rod 2 and is rotated together and laminate mutually with 3 inner walls of valve body, cut 3 flows of valve body, dish board 1 rotates and makes gasbag 44 imbed spout 45 interior slide, and the length of gasbag 44 is greater than the width of spout 45, make gasbag 44 can be because the restriction of spout 45 width is compressed the unnecessary gas of discharge, gasbag 44 discharge unnecessary gas then can enter into two sealing strips 42 through air duct 43, make two sealing strip 42 volume expansion press close to 3 inner walls of valve body, strengthen the leakproofness between the closed back of valve body 3 and the dish board 1, avoid the waste of dish board 1 closure not closely leak and cause the water resource, utilize spout 45 to block gasbag 44 simultaneously, the frictional force between spout 45 and the gasbag 44 can strengthen the stability of being connected between closed dish board 1 and the valve body 3, can reduce closed dish board 1 to a certain extent and take place to rotate under the impact of high-pressure rivers and lead to the risk that closed dish board 1 reopened to turn on Thereby improving the service pressure of the butterfly valve.
As shown in fig. 2 and 5, still be equipped with stopper 46, two stopper 46 are fixed in on the inner wall of valve body 3 both sides respectively, when dish board 1 is closed, two stopper 46 laminate with the both sides surface of valve body 3 respectively, utilize stopper 46 to restrict the rotation direction and the angle of dish board 1, prevent that dish board 1 from excessively rotating and making closed dish board 1 reopen, prevent simultaneously that dish board 1 from excessively rotating also can avoid gasbag 44 owing to receive spout 45's restriction and take place to pull between dish board 1, guarantee gasbag 44 and dish board 1's stability of being connected.
When at closed dish board 1, accessible hand wheel drives valve rod 2 and rotates, dish board 1 follows the effect at valve rod 2 and rotates together and laminates with 3 inner walls of valve body, cut valve body 3 flow, dish board 1 rotates and makes gasbag 44 imbed spout 45 and slide, and the length of gasbag 44 is greater than the width of spout 45, make gasbag 44 can be because the restriction of spout 45 width is compressed the unnecessary gas of discharge, gasbag 44 discharge unnecessary gas then can enter into two sealing strips 42 through air duct 43, make two sealing strip 42 volume inflation press close to 3 inner walls of valve body, strengthen the leakproofness between closed back of valve body 3 and dish board 1, avoid the closed not enough inseparable waste that leaks of water resource of dish board 1, utilize spout 45 to block gasbag 44 simultaneously, the frictional force between spout 45 and the gasbag 44 can strengthen the stability of being connected between closed dish board 1 and the valve body 3, can reduce closed dish board 1 to a certain extent and take place to rotate under the impact of high-pressure rivers and lead to the closed dish board The risk that board 1 reopened to improve the service pressure of butterfly valve, and restrict through stopper 46 dish board 1's rotation direction and angle, can prevent that dish board 1 from excessively rotating and making closed dish board 1 reopen, prevent simultaneously that dish board 1 from excessively rotating also can avoid gasbag 44 owing to receive spout 45's restriction and take place to drag between dish board 1, guarantee gasbag 44 and dish board 1's stability of being connected.
The above-mentioned be the utility model discloses a concrete implementation way, nevertheless the utility model discloses a design concept is not limited to this, and the ordinary use of this design is right the utility model discloses carry out immaterial change, all should belong to the act of infringement the protection scope of the utility model.
Claims (2)
1. The utility model provides a butterfly valve that leakproofness is good, including dish board and valve body, the rotatable installation in the inside of valve body of dish board, its characterized in that: still be equipped with the sealing mechanism who assembles in the inside of dish board, sealing mechanism includes mounting groove, sealing strip, air duct, gasbag and spout, the dish board laminating valve body inner wall be equipped with the mounting groove on the surface, the inside symmetry of mounting groove is fixed with the sealing strip, is connected through a plurality of air ducts between two sealing strips and switches on, the gasbag is fixed in the dish board and is close to the valve body inner wall on the surface, and the gasbag covers in the upper surface of sealing strip, and two sealing strips all are connected with the gasbag through the air duct and switch on, and the length of gasbag is greater than the width of spout, the spout is located on the inner wall of valve body, the gasbag slidable is to the.
2. The butterfly valve with good sealing performance according to claim 1, wherein: the disc plate closing device is characterized by further comprising limiting blocks, wherein the two limiting blocks are fixed on the inner walls of two sides of the valve body respectively, and when the disc plate is closed, the two limiting blocks are attached to the surfaces of two sides of the valve body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020061833.XU CN211371319U (en) | 2020-01-13 | 2020-01-13 | Butterfly valve with good sealing performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020061833.XU CN211371319U (en) | 2020-01-13 | 2020-01-13 | Butterfly valve with good sealing performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211371319U true CN211371319U (en) | 2020-08-28 |
Family
ID=72155741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020061833.XU Expired - Fee Related CN211371319U (en) | 2020-01-13 | 2020-01-13 | Butterfly valve with good sealing performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211371319U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431921A (en) * | 2021-08-25 | 2021-09-24 | 常州满裕隆换热器有限公司 | Sealing structure and heat exchanger with same |
| CN114935041A (en) * | 2022-05-25 | 2022-08-23 | 常州电站辅机股份有限公司 | Valve actuating mechanism for water hammer elimination compensation and working method thereof |
-
2020
- 2020-01-13 CN CN202020061833.XU patent/CN211371319U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431921A (en) * | 2021-08-25 | 2021-09-24 | 常州满裕隆换热器有限公司 | Sealing structure and heat exchanger with same |
| CN114935041A (en) * | 2022-05-25 | 2022-08-23 | 常州电站辅机股份有限公司 | Valve actuating mechanism for water hammer elimination compensation and working method thereof |
| CN114935041B (en) * | 2022-05-25 | 2023-10-31 | 常州电站辅机股份有限公司 | Valve actuating mechanism for water hammer elimination compensation and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200828 |