CN212868478U - Stop valve that leakproofness is strong - Google Patents
Stop valve that leakproofness is strong Download PDFInfo
- Publication number
- CN212868478U CN212868478U CN202021637107.4U CN202021637107U CN212868478U CN 212868478 U CN212868478 U CN 212868478U CN 202021637107 U CN202021637107 U CN 202021637107U CN 212868478 U CN212868478 U CN 212868478U
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- Prior art keywords
- fixed
- valve
- valve plate
- movable
- sealing
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- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The application relates to the technical field of stop valves, and discloses a stop valve with strong sealing property, which comprises a valve body and a valve cover covering the upper end of the valve body, wherein a feeding channel and a discharging channel are arranged in the valve body, the feeding channel and the discharging channel are communicated through an operation hole, the opening of the operation hole is gradually reduced from one side close to the valve cover to one side far away from the valve cover, a sealing structure for sealing the operation hole is arranged in the valve body, the sealing structure comprises a fixed valve plate covering the upper part of the operation hole, a fixed hole is arranged at the upper end of the fixed valve plate, a fixed pipe is rotatably connected in the fixed hole, one end of the fixed pipe far away from the fixed valve plate is rotatably connected with the valve cover, a movable rod is in threaded connection with the fixed pipe, one end of the movable rod, which penetrates through the fixed pipe and the fixed, this application has the good effect of leakproofness.
Description
Technical Field
The application relates to the technical field of stop valves, especially, relate to a stop valve that leakproofness is strong.
Background
At present, a stop valve is one of the most widely used valves, and the stop valve has the advantages of small friction force between sealing surfaces in the opening and closing process, durability, small opening height, easiness in manufacturing, convenience in maintenance, suitability for medium and low pressure and suitability for high pressure.
The existing chinese patent with publication number CN201875169U discloses a stop valve, which comprises a valve body with a valve cavity, a valve cover and a valve rod arranged on the valve body, wherein the valve body is provided with an inflow channel for medium to flow into the valve cavity and an outflow channel for medium to flow out of the valve cavity, and the lower end of the valve rod is fixedly provided with a valve flap for controlling the connection and disconnection between the inflow channel and the valve cavity.
The above related technical solutions have the following drawbacks: after the stop valve is used for a long time, the sealing performance of the valve clack and the valve body is reduced, and the inflow channel and the outflow channel cannot be effectively separated.
SUMMERY OF THE UTILITY MODEL
In order to improve the stop valve leakproofness, this application provides the strong stop valve of leakproofness.
The application provides a stop valve that leakproofness is strong adopts following technical scheme:
the utility model provides a stop valve that leakproofness is strong, includes that valve body and lid fit the valve gap of valve body upper end, be equipped with feedstock channel and discharging channel in the valve body, feedstock channel and discharging channel pass through the handle hole intercommunication, the opening of handle hole reduces to keeping away from valve gap one side from being close to valve gap one side gradually, be provided with the seal structure of sealed handle hole in the valve body, seal structure closes the fixed valve plate in the handle hole top including the lid, the fixed orifices has been seted up to fixed valve plate upper end, the downthehole rotation of fixed orifice is connected with fixed pipe, the one end that fixed valve plate was kept away from to fixed pipe is rotated with the valve gap and is connected, fixed intraductal threaded connection has the movable rod, the movable rod passes the one end rotation of fixed pipe and fixed valve plate and is connected with movable.
By adopting the technical scheme, during sealing, the fixed pipe is driven to rotate to enable the fixed pipe and the movable rod to descend together, the movable valve plate is embedded into the operation hole until the fixed valve plate is abutted against the valve body to seal the upper end of the operation hole, and then the movable rod is driven to rotate to enable the movable valve plate to descend and abut against the inner wall of the operation hole, so that the operation hole is further sealed, and the sealing effect of the stop valve is improved; otherwise, the fixed pipe and the movable rod are driven to rotate respectively, so that the fixed valve plate and the movable valve plate are lifted, and the feeding channel is communicated with the discharging channel.
Preferably, the end face, far away from the valve cover, of the fixed valve plate is provided with a fixed ring groove, the inner diameter of the fixed ring groove is larger than that of the fixed hole, and a first sealing ring is arranged in the fixed ring groove.
Through adopting above-mentioned technical scheme, when fixed valve plate lid closed the handle hole top, can improve the leakproofness of fixed valve plate to the handle hole through first sealing washer to prevent the fluid in the feed channel and the fluid in the discharging channel from circulating each other.
Preferably, the edge of the movable valve plate, which is far away from the fixed valve plate, is provided with a chamfer.
Through adopting above-mentioned technical scheme, area of contact is bigger when chamfer cross-section and operation groove's inner wall butt, improves seal structure's leakproofness.
Preferably, a movable ring groove is formed in the chamfer inclined plane, and a second sealing ring is arranged in the movable ring groove.
Through adopting above-mentioned technical scheme, further improve the leakproofness between activity valve plate and the operation hole inner wall through the second sealing washer.
Preferably, one end of the movable rod, which is far away from the movable valve plate, is fixedly connected with a movable hand wheel.
By adopting the technical scheme, the movable hand wheel drives the movable rod to rotate by workers respectively, so that the movable valve plate ascends or descends.
Preferably, the fixed pipe periphery is fixedly connected with a handle block, and the handle block is located on one side of the valve cover far away from the fixed valve plate.
Through adopting above-mentioned technical scheme, through the handle piece, can make things convenient for the fixed pipe of staff drive to rotate to make activity valve plate and fixed valve plate rise or descend.
Preferably, the handle piece is provided with a plurality ofly, and is a plurality of the axis circumference array distribution of handle piece with fixed pipe.
Through adopting above-mentioned technical scheme, set up a plurality of handles pieces, the staff operation of can being convenient for, when a handle piece damaged, other handle pieces can also make fixed pipe rotate.
Preferably, the movable rod is connected with a nut in a threaded manner.
Through adopting above-mentioned technical scheme, when setting up nut and fixed pipe butt, the restriction movable rod rotates.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when sealing is carried out, the fixed pipe is driven to rotate, the fixed pipe and the movable rod are enabled to descend together, the movable valve plate is embedded into the operation hole until the fixed valve plate abuts against the valve body, the upper end of the operation hole is sealed, the movable rod is driven to rotate, the movable valve plate descends and abuts against the inner wall of the operation hole, the operation hole is further sealed, and the sealing effect of the stop valve is improved; otherwise, the fixed pipe and the movable rod are respectively driven to rotate, so that the fixed valve plate and the movable valve plate are lifted, and the feeding channel is communicated with the discharging channel;
2. adopt first sealing washer and second sealing washer, further improve the leakproofness of stop valve.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a cross-sectional view highlighting the seal structure;
fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.
Reference numerals: 1. a valve body; 11. a feed channel; 12. a discharge channel; 13. an operation hole; 2. a valve cover; 3. a sealing structure; 31. fixing the valve plate; 311. a fixing hole; 312. a fixed ring groove; 313. a first seal ring; 32. a fixed tube; 321. a handle block; 33. a movable rod; 34. a movable valve plate; 341. chamfering; 342. a movable ring groove; 343. a second seal ring; 35. a movable hand wheel; 36. and a nut.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment discloses a stop valve that leakproofness is strong. Referring to fig. 1 and 2, the stop valve includes a valve body 1 and a bonnet 2 covering an upper end of the valve body 1. A feeding channel 11 and a discharging channel 12 are arranged in the valve body 1, and the feeding channel 11 and the discharging channel 12 are communicated through an operation hole 13. The opening of the operation hole 13 gradually decreases from the side close to the bonnet 2 to the side away from the bonnet 2.
Referring to fig. 2 and 3, a sealing structure 3 for sealing the operation hole 13 is provided in the valve body 1, and the sealing structure 3 includes a fixed valve plate 31 covering the operation hole 13, and an outer diameter of the fixed valve plate 31 is larger than an inner diameter of the operation hole 13. The upper end of the fixed valve plate 31 is provided with a fixed hole 311, and a fixed pipe 32 is rotatably connected in the fixed hole 311. One end of the fixed pipe 32 far away from the fixed valve plate 31 is rotatably connected with the valve cover 2, and a movable rod 33 is rotatably connected in the fixed pipe 32.
Referring to fig. 2 and 3, one end of the movable rod 33 passing through the fixed pipe 32 and the fixed valve plate 31 is rotatably connected with a movable valve plate 34, the movable valve plate 34 is made of an elastic material, and the outer diameter of the movable valve plate 34 is larger than the smallest inner diameter of the operation hole 13 and smaller than the largest inner diameter of the operation hole 13. The edge of the movable valve plate 34 away from the fixed valve plate 31 is provided with a chamfer 341, and the outer circumferential surface of the chamfer 341 is abutted against the inner wall of the operation hole 13.
Referring to fig. 2 and 3, a fixing ring groove 312 is formed in an end surface of the fixed valve plate 31 away from the bonnet 2, an inner diameter of the fixing ring groove 312 is larger than an inner diameter of the fixing hole 311, and a first sealing ring 313 is disposed in the fixing ring groove 312. When the fixed valve plate 31 abuts against the valve body 1, the first seal ring 313 can further improve the sealing performance of the seal structure 3 with respect to the operation hole 13, and prevent the fluid in the feed passage 11 and the fluid in the discharge passage 12 from flowing through each other.
Referring to fig. 2 and 3, a movable ring groove 342 is formed in the circumferential surface of the movable valve plate 34, a second seal ring 343 is disposed in the movable ring groove 342, and when the movable valve plate 34 abuts against the inner wall of the operation hole 13, the second seal ring 343 can improve the sealing performance of the movable valve plate 34 against the operation hole 13.
Referring to fig. 1 and 2, a movable hand wheel 35 is fixedly connected to one end of the movable rod 33 away from the movable valve plate 34, a nut 36 is connected to the movable rod 33 in a threaded manner, and the nut 36 is located above the fixed pipe 32. When the movable hand wheel 35 is driven to rotate, the movable valve plate 34 is attached to the inner wall of the operation hole 13 to seal the operation hole 13, and then the nut 36 is driven to rotate, so that the nut 36 is abutted to the fixed pipe 32 to limit the rotation of the movable rod 33.
Referring to fig. 2 and 3, two handle blocks 321 of fixedly connected with on the fixed pipe 32 periphery, two handle blocks 321 all are located valve gap 2 and keep away from one side of fixed valve plate 31, and two handle blocks 321 are with the axis circumference array of movable rod 33. The staff can conveniently drive fixed pipe 32 through handle piece 321 and rotate to make fixed valve plate 31 rise or descend together with movable rod 33.
The implementation principle of the stop valve that this application embodiment leakproofness is strong does: when the operation hole 13 is sealed, the handle block 321 is moved to rotate the fixed pipe 32, so that the fixed valve plate 31 and the movable rod 33 descend together, the movable valve plate 34 is embedded into the operation hole 13 until the fixed valve plate 31 abuts against the inside of the valve body 1, and the movable hand wheel 35 is driven to rotate, so that the movable valve plate 34 is attached to the inner wall of the operation hole 13, and the feeding channel 11 is separated from the discharging channel 12.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents, improvements, etc. made within the design concept of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a stop valve that leakproofness is strong, includes valve body (1) and valve gap (2) that the lid fits valve body (1) upper end, be equipped with feedstock channel (11) and discharging channel (12) in valve body (1), feedstock channel (11) and discharging channel (12) are through handle hole (13) intercommunication, its characterized in that: the opening of the operating hole (13) is gradually reduced from the side close to the valve cover (2) to the side far away from the valve cover (2), a sealing structure (3) for sealing the operation hole (13) is arranged in the valve body (1), the sealing structure (3) comprises a fixed valve plate (31) covering the upper part of the operation hole (13), the upper end of the fixed valve plate (31) is provided with a fixed hole (311), the fixed hole (311) is rotationally connected with a fixed pipe (32), one end of the fixed pipe (32) far away from the fixed valve plate (31) is rotationally connected with the valve cover (2), the fixed pipe (32) is internally threaded with a movable rod (33), one end of the movable rod (33) penetrating through the fixed pipe (32) and the fixed valve plate (31) is rotatably connected with a movable valve plate (34), the outer circumferential surface of the movable valve plate (34) is abutted against the inner wall of the operation hole (13).
2. A high-sealing stop valve as claimed in claim 1, wherein: fixed valve plate (31) are kept away from the terminal surface of valve gap (2) and have been seted up fixed annular (312), the internal diameter of fixed annular (312) is greater than the internal diameter of fixed orifices (311), be provided with first sealing washer (313) in fixed annular (312).
3. A high-sealing stop valve as claimed in claim 1, wherein: and a chamfer (341) is formed on the edge of the movable valve plate (34) far away from the fixed valve plate (31).
4. A high-sealing stop valve as claimed in claim 3, wherein: a movable ring groove (342) is formed in the inclined surface of the chamfer (341), and a second sealing ring (343) is arranged in the movable ring groove (342).
5. A high-sealing stop valve as claimed in claim 1, wherein: one end of the movable rod (33) far away from the movable valve plate (34) is fixedly connected with a movable hand wheel (35).
6. A high-sealing stop valve as claimed in claim 1, wherein: fixed pipe (32) periphery is gone up fixedly connected with handle piece (321), handle piece (321) are located valve gap (2) and keep away from one side of fixed valve plate (31).
7. A high-tightness stop valve according to claim 6, characterized in that: the handle piece (321) is provided with a plurality ofly, a plurality ofly handle piece (321) distributes with the axis circumference array of fixed pipe (32).
8. A high-sealing stop valve as claimed in claim 1, wherein: the movable rod (33) is in threaded connection with a nut (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021637107.4U CN212868478U (en) | 2020-08-07 | 2020-08-07 | Stop valve that leakproofness is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021637107.4U CN212868478U (en) | 2020-08-07 | 2020-08-07 | Stop valve that leakproofness is strong |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212868478U true CN212868478U (en) | 2021-04-02 |
Family
ID=75220416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021637107.4U Expired - Fee Related CN212868478U (en) | 2020-08-07 | 2020-08-07 | Stop valve that leakproofness is strong |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212868478U (en) |
-
2020
- 2020-08-07 CN CN202021637107.4U patent/CN212868478U/en not_active Expired - Fee Related
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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: 20210402 |