CN210240583U - Butterfly valve with valve plate sealing protection device - Google Patents
Butterfly valve with valve plate sealing protection device Download PDFInfo
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- CN210240583U CN210240583U CN201920855444.1U CN201920855444U CN210240583U CN 210240583 U CN210240583 U CN 210240583U CN 201920855444 U CN201920855444 U CN 201920855444U CN 210240583 U CN210240583 U CN 210240583U
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- valve plate
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Abstract
The utility model discloses a butterfly valve with valve plate seals protection device, include the valve body and install the support at the valve body top, the valve plate is installed to the valve body intermediate position, install the sealing washer between valve body and the valve plate, valve plate central point puts and has seted up the notch, notch internally mounted has compression spring, the piston is installed to compression spring one side, the slide bar is installed to piston one side, the arc protection shield is installed to slide bar one side, install elastic sealing element between valve plate and the arc protection shield. The utility model discloses a sealing washer and the inside sealing member in close contact with of a plurality of recesses for leakproofness between valve plate and the valve body is strengthened well, and when the valve was closed, the fluid in the circulation chamber passed through the compression of piston to compression spring through elastic sealing element and slide bar to the pressure that the arc protection shield formed, makes the pressure that the fluid produced alleviate, and then has realized the protection to the valve plate.
Description
Technical Field
The utility model relates to a butterfly valve seals technical field, specifically is a butterfly valve with valve plate seals protection device.
Background
With the development of times and continuous improvement of industrial level, the use of valves is also continuously improved, and as a device for controlling the direction, pressure and flow of fluid in a fluid system, the valves play an important role in the process of pipeline fluid transportation, and a butterfly valve is one of the devices, and is mainly used for cutting off and throttling air, water and various corrosive media due to the simple structure.
However, the existing butterfly valve has the following disadvantages:
1. the existing butterfly valve structure is mainly composed of a valve body, a valve plate, a valve rod and a sealing ring, and because the structure is simpler, one sealing ring cannot meet the sealing performance required by the valve, and the valve plate is not effectively protected, so that the valve plate is often damaged in long-term use, and further the valve loses the effect, and some economic losses are caused.
2. The existing butterfly valve is mostly sealed by adopting a simple sealing element between a valve rod and a valve body, and the situation of leakage of the valve at the valve rod can be caused by long-time use due to the reason of the working environment of the valve, so that the sealing property of the device is poor.
SUMMERY OF THE UTILITY MODEL
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a butterfly valve with valve plate seals protection device, includes the valve body and installs the support at the valve body top, the valve plate is installed to the valve body intermediate position, install the sealing washer between valve body and the valve plate, valve plate central point puts and has seted up the notch, notch internally mounted has compression spring, the piston is installed to compression spring one side, the slide bar is installed to piston one side, the arc protection shield is installed to slide bar one side, install elastic sealing element between valve plate and the arc protection shield, the terminal recess that has evenly seted up in the valve plate outside, the inside sealing member that all is provided with of recess, control switch is installed at the support top, the control switch output is connected with the valve rod, valve rod one side and valve plate fixed connection, be provided with the circulation chamber in the middle.
Preferably, the fixed support is fixedly connected with a first packing frame through a bolt, packing formed by mixing asbestos packing and polytetrafluoroethylene raw materials is filled in the first packing frame, and the valve rod penetrates through the first packing frame.
Preferably, the bottom of the valve body is provided with a bearing, and the bottom of the valve rod is connected with the bearing.
Preferably, a second packing frame is fixedly mounted at the top of the bearing, asbestos packing is filled in the second packing frame, and the valve rod penetrates through the second packing frame and is connected with the bearing.
Preferably, a protection groove is formed in the other side of the valve rod, and fixing strips are arranged on two sides of the protection groove.
Preferably, the surface of the valve body is provided with a plurality of screw holes.
The utility model provides a butterfly valve with valve plate seals protection device possesses following beneficial effect:
(1) the utility model discloses a set up the sealing washer, the notch, compression spring, a piston, the slide bar, arc protection shield and recess, through sealing washer and the inside sealing member in close contact with of a plurality of recesses when the valve is closed, make the leakproofness between valve plate and the valve body strengthened well, when the valve is closed, the fluid in the circulation chamber passes through the compression of piston to compression spring through elastic sealing spare and slide bar to the pressure that the arc protection shield formed, make the pressure that the fluid produced alleviate, and then realized the protection to the valve plate.
(2) The utility model discloses a set up first filler frame and second filler frame, fill the space between valve body and the valve rod through filling that the leakproofness is good, resistant erosion, coefficient of friction is less to first filler frame and second filler frame inside to avoided the material in the valve body probably from the condition of revealing that the valve rod position appears, further strengthened the leakproofness of device.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a left side view of the present invention;
fig. 3 is the schematic view of the valve plate structure of the present invention.
In the figure: 1. a valve body; 2. a support; 3. a valve plate; 4. a seal ring; 5. a notch; 6. a compression spring; 7. a piston; 8. a slide bar; 9. an arc-shaped protection plate; 10. an elastomeric seal; 11. a groove; 12. a control switch; 13. a valve stem; 14. a first packing frame; 15. a bearing; 16. a second packing frame; 17. a protective groove; 18. a fixing strip; 19. a screw hole; 20. a flow-through chamber.
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.
As shown in fig. 1-3, the utility model provides a technical solution: a butterfly valve with a valve plate sealing protection device comprises a valve body 1 and a support 2 installed at the top of the valve body 1, wherein a valve plate 3 is installed at the middle position of the valve body 1, a sealing ring 4 is installed between the valve body 1 and the valve plate 3, a notch 5 is formed in the central position of the valve plate 3, a compression spring 6 is installed inside the notch 5, a piston 7 is installed on one side of the compression spring 6, a slide rod 8 is installed on one side of the piston 7, an arc-shaped protection plate 9 is installed on one side of the slide rod 8, an elastic sealing element 10 is installed between the valve plate 3 and the arc-shaped protection plate 9, a groove 11 is evenly formed in the tail end of the outer side of the valve plate 3, a sealing element is arranged inside the groove 11, a control switch 12 is installed at the top of the support 2, a valve rod 13 is, the valve plate 3 is mounted in a central position in the flow-through chamber 20.
The support 2 is fixedly connected with a first filling frame 14 through bolts, a filling material formed by mixing an asbestos packing and a polytetrafluoroethylene raw material is filled in the first filling frame 14, the valve rod 13 penetrates through the first filling frame 14, and the filling material formed by mixing the asbestos packing and the polytetrafluoroethylene raw material is filled in the first filling frame 14, so that leakage between the valve rod 13 and the valve body 1 due to gaps is effectively prevented; the bottom of the valve body 1 is provided with a bearing 15, the bottom of the valve rod 13 is connected with the bearing 15, and the rotation of the valve rod 13 is facilitated by the arrangement of the bearing 15; a second packing frame 16 is fixedly installed at the top of the bearing 15, asbestos packing is filled in the second packing frame 16, the valve rod 13 penetrates through the second packing frame 16 to be connected with the bearing 15, the second packing frame 16 is arranged, and meanwhile, the asbestos packing is filled in the second packing frame 16, so that leakage generated in a gap between the valve rod 13 and the valve body 1 is effectively prevented; a protection groove 17 is formed in the other side of the valve rod 13, and fixing strips 18 are arranged on the two sides of the protection groove 17, so that the valve rod 13 can be protected; the surface of the valve body 1 is provided with a plurality of screw holes 19, so that the device is convenient to mount.
The working principle is as follows: when the device is used, only the control switch 12 needs to be screwed, so that the valve rod 13 drives the valve plate 3 to rotate, the flow of fluid in the circulation cavity 20 is controlled according to the size of a screwing angle, meanwhile, when the device needs to be closed, only the control switch 12 needs to be screwed, so that the valve rod 13 drives the valve plate 3 to rotate, when the valve plate 3 completely blocks the middle position of the circulation cavity 20, at the moment, the sealing element inside the groove 11 at the top of the valve plate 3 is in close contact with the sealing ring 4, so that the sealing performance between the valve plate 3 and the valve body 1 is well enhanced, when the valve is closed, the fluid at one side in the circulation cavity 20 forms pressure on the arc-shaped protection plate 9, the generated pressure extrudes the elastic sealing element 10 through the arc-shaped protection plate 9, meanwhile, the sliding rod 8 compresses the compression spring 6 inside the notch 5 through the piston 7, and further, thereby realizing the protection of the valve plate 3.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A butterfly valve with a valve plate seal protection device comprises a valve body (1) and a support (2) arranged at the top of the valve body (1), and is characterized in that: the improved valve is characterized in that a valve plate (3) is installed at the middle position of the valve body (1), a sealing ring (4) is installed between the valve body (1) and the valve plate (3), a notch (5) is formed in the center position of the valve plate (3), a compression spring (6) is installed inside the notch (5), a piston (7) is installed on one side of the compression spring (6), a sliding rod (8) is installed on one side of the piston (7), an arc-shaped protection plate (9) is installed on one side of the sliding rod (8), an elastic sealing element (10) is installed between the valve plate (3) and the arc-shaped protection plate (9), a groove (11) is evenly formed in the tail end of the outer side of the valve plate (3), a sealing element is arranged inside the groove (11), a control switch (12) is installed at the top of the support (2), a valve, the middle of the valve body (1) is provided with a circulation cavity (20), and the valve plate (3) is arranged at the center of the circulation cavity (20).
2. A butterfly valve having a valve plate seal protection device in accordance with claim 1, wherein: the support (2) is fixedly connected with a first filling frame (14) through bolts, a filling material formed by mixing asbestos packing and polytetrafluoroethylene raw materials is filled in the first filling frame (14), and the valve rod (13) penetrates through the first filling frame (14).
3. A butterfly valve having a valve plate seal protection device in accordance with claim 1, wherein: the valve is characterized in that a bearing (15) is arranged at the bottom of the valve body (1), and the bottom of the valve rod (13) is connected with the bearing (15).
4. A butterfly valve having a valve plate seal protection device in accordance with claim 3, wherein: a second filling frame (16) is fixedly mounted at the top of the bearing (15), asbestos packing is filled in the second filling frame (16), and the valve rod (13) penetrates through the second filling frame (16) and is connected with the bearing (15).
5. A butterfly valve having a valve plate seal protection device in accordance with claim 1, wherein: the valve rod (13) opposite side is provided with protection groove (17), protection groove (17) both sides are provided with fixed strip (18).
6. A butterfly valve having a valve plate seal protection device in accordance with claim 1, wherein: the surface of the valve body (1) is provided with a plurality of screw holes (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855444.1U CN210240583U (en) | 2019-06-10 | 2019-06-10 | Butterfly valve with valve plate sealing protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920855444.1U CN210240583U (en) | 2019-06-10 | 2019-06-10 | Butterfly valve with valve plate sealing protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210240583U true CN210240583U (en) | 2020-04-03 |
Family
ID=69974647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920855444.1U Active CN210240583U (en) | 2019-06-10 | 2019-06-10 | Butterfly valve with valve plate sealing protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210240583U (en) |
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2019
- 2019-06-10 CN CN201920855444.1U patent/CN210240583U/en active Active
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