CN221034070U - Novel kelly bar plug valve with stable sealing capability - Google Patents
Novel kelly bar plug valve with stable sealing capability Download PDFInfo
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- CN221034070U CN221034070U CN202322579536.0U CN202322579536U CN221034070U CN 221034070 U CN221034070 U CN 221034070U CN 202322579536 U CN202322579536 U CN 202322579536U CN 221034070 U CN221034070 U CN 221034070U
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- connecting disc
- valve seat
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- 238000007789 sealing Methods 0.000 title claims abstract description 83
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 17
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 16
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model belongs to the technical field of plug valves, and particularly discloses a novel kelly plug valve with stable sealing capability, which comprises a valve body, wherein a connecting disc is fixedly connected to the bottom of the valve body, the top of the connecting disc is fixedly communicated with a communicating round table, the top of the communicating round table is fixedly communicated with the bottom of the valve body, a valve seat is detachably arranged at the bottom of the connecting disc through a sealing mechanism, an anti-leakage mechanism is arranged in the valve seat, and a fixing table is fixedly connected to the inside of the valve body. This novel kelly plug valve with stable sealing ability, valve body pass through sealing mechanism and valve seat indirect fixed link to each other, and the outstanding sealing performance of cooperation polytetrafluoroethylene sealing washer and antiseep mechanism can make the valve seat form tight shutoff effect to the valve body, when the inside shutoff that produces of valve, can screw out the screw and remove the restriction to the valve seat to dismantle the valve seat fast, so that clear up the valve body inside fast.
Description
Technical Field
The application relates to the technical field of plug valves, in particular to a novel kelly plug valve with stable sealing capability.
Background
The kelly plug valve is an industrial valve, also called as a square plug valve, and is a valve for controlling the flow rate of fluid and blocking the fluid by rotating a valve core.
The valve body and the valve seat are key components of the kelly plug valve, the valve body provides a structure for supporting and guiding the valve core, the valve seat plays a role in sealing the valve core and medium flow, part of the valve seat is permanently welded with the valve body, and the kelly plug valve is difficult to disassemble the valve seat and the valve body when the valve is blocked in the process of controlling petroleum transportation, so that the cleaning difficulty of the interior of the valve is increased.
Disclosure of utility model
Accordingly, the present utility model has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present utility model is to provide a novel kelly plug valve with stable sealing capability, which solves the above-mentioned problems occurring in the prior art.
In order to achieve the above purpose, the novel kelly plug valve with stable sealing capability comprises a valve body, wherein the bottom of the valve body is fixedly connected with a connecting disc, the top of the connecting disc is fixedly communicated with a communicated round table, the top of the communicated round table is fixedly communicated with the bottom of the valve body, the bottom of the connecting disc is detachably provided with a valve seat through a sealing mechanism, the inside of the valve seat is provided with an anti-seepage mechanism, the inside of the valve body is fixedly connected with a fixed table, the inner surface of the fixed table is rotationally connected with a valve rod, the end head of the valve rod is provided with a valve core, and the outer surface of the valve core is provided with a flow channel.
Preferably, the sealing mechanism comprises a sealing cover fixedly sleeved on the top of the valve seat, a screw is arranged on the outer surface of the sealing cover, and the sealing mechanism is matched with the anti-leakage mechanism to effectively avoid leakage of liquid after the valve body is stably connected with the valve seat.
Preferably, the bottom of connection pad has seted up the screw hole, the bottom of connection pad is provided with the polytetrafluoroethylene sealing washer, spacing hole has been seted up to the surface of polytetrafluoroethylene sealing washer.
Preferably, the anti-leakage mechanism comprises an inner concave table arranged on the inner side of the sealing cover, an expansion type waterproof cushion material is arranged on the inner side of the inner concave table, and a sealing ring is arranged at the top of the inner concave table.
Preferably, an arc-shaped limiting pad is arranged on the inner side of the valve body, and the inner side of the arc-shaped limiting pad is in sliding connection with the outer surface of the valve core.
Preferably, the inside of fixed station is provided with the pinion rack, the surface of valve rod is provided with the rack, the surface of pinion rack is connected with the surface meshing of rack, the surface of valve rod is provided with O type sealing washer, and O type sealing washer is located the inside of fixed station, and the valve rod can alternate rotation each other at the in-process of valve body internal rotation, and when not hindering valve rod normal rotation, can reduce the too big O type sealing washer damage that causes of liquid pressure.
Compared with the prior art, the utility model has the following beneficial effects:
1. This novel kelly plug valve with stable sealing ability, valve body pass through sealing mechanism and valve seat indirect fixed link to each other, and the outstanding sealing performance of cooperation polytetrafluoroethylene sealing washer and antiseep mechanism can make the valve seat form tight shutoff effect to the valve body, when the inside shutoff that produces of valve, can screw out the screw and remove the restriction to the valve seat to dismantle the valve seat fast, so that clear up the valve body inside fast.
2. This novel kelly plug valve with stable sealing capability, when rotating the position of valve rod adjustment case, the arc spacing pad can be effectively spacing to the case, keeps hindering the case to rotate smoothly when avoiding its production skew, and cooperation polytetrafluoroethylene sealing washer can carry out dynamic seal to the valve body, and rack and pinion rack are in the crisscross in-process of making a round trip simultaneously, can reduce the too big damage that causes O type sealing washer of liquid pressure, promotes the protection effect to the device.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is an exploded view of the bottom of the connection pad of the present application;
FIG. 3 is a schematic view of the surface structure of the connecting disc of the present application;
FIG. 4 is a schematic view of the internal structure of the valve seat of the present application;
FIG. 5 is a schematic view of the internal structure of the valve body of the present application;
FIG. 6 is a schematic view of the outer surface structure of the valve stem of the present application.
Wherein: 1. a valve body; 2. a connecting disc; 3. the round platform is communicated; 4. a threaded hole; 5. a cover; 6. a valve seat; 7. a concave table; 8. an expansion type waterproof pad material; 9. a seal ring; 10. a polytetrafluoroethylene sealing ring; 11. a limiting hole; 12. a screw; 13. a fixed table; 14. a valve stem; 15. a valve core; 16. a flow passage; 17. an arc-shaped limit pad; 18. a toothed plate; 19. a rack; 20. an O-shaped sealing ring.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1-6, the novel kelly plug valve with stable sealing capability comprises a valve body 1, a connecting disc 2 is fixedly connected to the bottom of the valve body 1, a communicating round table 3 is fixedly communicated with the top of the connecting disc 2, the top of the communicating round table 3 is fixedly communicated with the bottom of the valve body 1, a valve seat 6 is detachably mounted at the bottom of the connecting disc 2 through a sealing mechanism, an anti-leakage mechanism is arranged in the valve seat 6, a fixed table 13 is fixedly connected to the inside of the valve body 1, a valve rod 14 is rotatably connected to the inner surface of the fixed table 13, a valve core 15 is arranged at the end of the valve rod 14, and a flow passage 16 is formed in the outer surface of the valve core 15.
Through above-mentioned technical scheme, the device can be with valve body 1 and disk seat 6 sealed stable connection through sealing mechanism when using, and the antiseep mechanism of cooperation can effectively prevent liquid seepage, and is sealed the valve body 1 in the in-process of rotating valve rod 14 by O type sealing washer 20 developments.
Specifically, the sealing mechanism comprises a sealing cover 5 fixedly sleeved on the top of the valve seat 6, and a screw 12 is arranged on the outer surface of the sealing cover 5.
Specifically, screw hole 4 has been seted up to the bottom of connection pad 2, and the bottom of connection pad 2 is provided with polytetrafluoroethylene sealing washer 10, and spacing hole 11 has been seted up to polytetrafluoroethylene sealing washer 10's surface.
Through the technical scheme, the sealing cover 5 is inserted into the connecting disc 2 from below, then the screw 12 can pass through the limiting hole 11, so that the screw 12 is screwed into the threaded hole 4 and is in threaded connection with the threaded hole, the lower valve seat 6 is fixedly arranged, and the polytetrafluoroethylene sealing ring 10 is positioned between the connecting disc 2 and the sealing cover 5.
By the above technical scheme, the polytetrafluoroethylene sealing ring 10 is a soft sealing material, can fill the tiny gaps between metal sealing surfaces, provides excellent sealing effect, and has good elasticity and corrosion resistance at the same time.
Specifically, the antiseep mechanism includes the indent platform 7 that sets up in closing cap 5 inboard, and the inboard of indent platform 7 is provided with inflation formula waterproof pad material 8, and the top of indent platform 7 is provided with sealing ring 9.
Through the technical scheme, the main components of the expansion waterproof cushion material 8 are high molecular compounds, such as polymer materials, which can absorb water and expand after contacting with moisture to form a compact gel layer or a barrier, so that the penetration and the entry of the moisture can be effectively prevented, and the sealing ring 9 can further reduce the entry of liquid into the expansion waterproof cushion material 8.
Specifically, an arc-shaped limiting pad 17 is arranged on the inner side of the valve body 1, and the inner side of the arc-shaped limiting pad 17 is in sliding connection with the outer surface of the valve core 15.
Through the technical scheme, the valve rod 14 is rotated to drive the valve core 15 to slide on the surface of the arc-shaped limiting pad 17 in the rotating process, so that the valve core 15 can smoothly rotate on the arc-shaped inner side of the arc-shaped limiting pad 17.
Specifically, the inside of fixed station 13 is provided with pinion rack 18, and the surface of valve rod 14 is provided with rack 19, and the surface of pinion rack 18 is connected with the surface meshing of rack 19, and the surface of valve rod 14 is provided with O type sealing washer 20, and O type sealing washer 20 is located the inside of fixed station 13.
Through the technical scheme, the O-shaped sealing ring 20 forms dynamic sealing on the valve body 1, so that liquid in the valve body 1 can be effectively prevented from leaking out through a gap between the fixed table 13 and the valve rod 14.
Working principle: in the use process of the device, the valve body 1 is sealed and stably connected with the valve seat 6 through the sealing mechanism, namely the sealing cover 5 plugs the bottom of the connecting disc 2, the screw 12 on the sealing cover 5 passes through the limit hole 11 on the polytetrafluoroethylene sealing ring 10 and finally screws into the threaded hole 4 at the bottom of the connecting disc 2, the valve seat 6 can be fixedly arranged at the bottom end of the connecting disc 2, at the moment, the polytetrafluoroethylene sealing ring 10 is positioned between the connecting disc 2 and the sealing cover 5, the leakage of liquid can be effectively reduced through the excellent sealing performance of the polytetrafluoroethylene sealing ring 10 matched with the anti-leakage mechanism, the concave table 7 in the anti-leakage mechanism is positioned in the sealing cover 5, the expansion waterproof gasket 8 in the concave table 7 can absorb and expand after contacting moisture or other liquids to form a compact gel layer or barrier, the penetration and the entry of the liquid can be effectively prevented, the sealing ring 9 can further reduce the liquid entering into the expansion type waterproof gasket 8, so that the valve seat 6 forms a tight sealing effect on the valve body 1, when the valve is internally blocked, the screw 12 can be screwed out, the limitation on the valve seat 6 is released, the valve seat 6 can be quickly disassembled, the inside of the valve body 1 can be quickly cleaned, the cleaning difficulty is effectively reduced, the valve core 15 in the valve body 1 can rotate along with the valve rod 14 when the valve rod 14 is rotated, the position of the flow channel 16 is adjusted, the dosage of the liquid is controlled, the valve core 15 rotates along the inner wall of the arc-shaped limiting gasket 17, the arc-shaped limiting gasket 17 can effectively limit the valve core 15, the valve core 15 is prevented from rotating smoothly while the offset is avoided, and the polytetrafluoroethylene sealing ring 10 can fill a tiny gap between metal sealing surfaces, and has excellent sealing effect, good elasticity and corrosion resistance, therefore, the valve body 1 can be dynamically sealed in the rotation process of the valve rod 14, the leakage of liquid is effectively avoided, the racks 19 on the surface of the valve rod 14 can be staggered with the toothed plate 18 back and forth in the rotation process, the damage to the O-shaped sealing ring 20 caused by overlarge liquid pressure can be reduced while the normal rotation of the valve rod 14 is not hindered, the protection effect on the O-shaped sealing ring 20 is improved, and the service life of the device is prolonged.
Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. Novel kelly plug valve with stable sealing ability, including valve body (1), its characterized in that: the anti-leakage valve is characterized in that a connecting disc (2) is fixedly connected to the bottom of the valve body (1), a communicating round table (3) is fixedly communicated with the top of the connecting disc (2), the top of the communicating round table (3) is fixedly communicated with the bottom of the valve body (1), a valve seat (6) is detachably arranged at the bottom of the connecting disc (2) through a sealing mechanism, an anti-leakage mechanism is arranged in the valve seat (6), a fixed table (13) is fixedly connected to the inside of the valve body (1), a valve rod (14) is rotatably connected to the inner surface of the fixed table (13), a valve core (15) is arranged at the end of the valve rod (14), and a flow passage (16) is formed in the outer surface of the valve core (15);
The sealing mechanism comprises a sealing cover (5) fixedly sleeved on the top of a valve seat (6), a screw (12) is arranged on the outer surface of the sealing cover (5), a threaded hole (4) is formed in the bottom of the connecting disc (2), a polytetrafluoroethylene sealing ring (10) is arranged at the bottom of the connecting disc (2), and a limiting hole (11) is formed in the outer surface of the polytetrafluoroethylene sealing ring (10);
The anti-leakage mechanism comprises an inner concave table (7) arranged on the inner side of the sealing cover (5), an expansion type waterproof cushion material (8) is arranged on the inner side of the inner concave table (7), and a sealing ring (9) is arranged at the top of the inner concave table (7).
2. The novel kelly plug valve with stable sealing capability according to claim 1, wherein: the inner side of the valve body (1) is provided with an arc-shaped limiting pad (17), and the inner side of the arc-shaped limiting pad (17) is in sliding connection with the outer surface of the valve core (15).
3. The novel kelly plug valve with stable sealing capability according to claim 1, wherein: the inside of fixed station (13) is provided with pinion rack (18), the surface of valve rod (14) is provided with rack (19), the surface of pinion rack (18) is connected with the surface meshing of rack (19), the surface of valve rod (14) is provided with O type sealing washer (20), and O type sealing washer (20) are located the inboard of fixed station (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322579536.0U CN221034070U (en) | 2023-09-22 | 2023-09-22 | Novel kelly bar plug valve with stable sealing capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322579536.0U CN221034070U (en) | 2023-09-22 | 2023-09-22 | Novel kelly bar plug valve with stable sealing capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221034070U true CN221034070U (en) | 2024-05-28 |
Family
ID=91169859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322579536.0U Active CN221034070U (en) | 2023-09-22 | 2023-09-22 | Novel kelly bar plug valve with stable sealing capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221034070U (en) |
-
2023
- 2023-09-22 CN CN202322579536.0U patent/CN221034070U/en active Active
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