CN210510295U - Valve seat pressing device - Google Patents
Valve seat pressing device Download PDFInfo
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- CN210510295U CN210510295U CN201921071711.2U CN201921071711U CN210510295U CN 210510295 U CN210510295 U CN 210510295U CN 201921071711 U CN201921071711 U CN 201921071711U CN 210510295 U CN210510295 U CN 210510295U
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- valve
- valve body
- annular
- seat
- fastening screw
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Abstract
The utility model discloses a disk seat closing device relates to valve technical field, for solving the current problem that cut-off valve closing device disk seat and valve body connection stability are not good and the disk seat is difficult for installing. One side of valve body is provided with the influent stream mouth, the opposite side of valve body is provided with the outfall, the below of valve body is provided with the valve gap, the top of valve body is provided with presses the cap, the top of pressing the cap is provided with the hand wheel, the inner wall of valve body is provided with the recess, the top of recess is provided with annular lug, the lower extreme of valve gap is provided with the flange bolt, the outside of flange bolt is provided with flange nut, be provided with seal ring between valve body and the valve gap, the lower extreme of spacing ring is provided with fastening screw, be provided with lock nut between fastening screw and the spacing ring, the top of spacing ring is provided with annular clamp plate, annular clamp plate's top is provided with annular clamping ring, annular clamping ring's top is provided with.
Description
Technical Field
The utility model relates to the technical field of valves, specifically a disk seat closing device.
Background
The cut-off valve is also called as stop valve, it is a forced sealed valve, the opening and closing part of the cut-off valve is a plug-shaped valve clack, the valve clack moves linearly along the central line of the valve seat, when the valve is closed, it must apply pressure to the valve clack, so that the forced sealing surface does not leak, the valve seat of the cut-off valve and the valve clack are generally matched by conical sealing surface, the valve seat has direct welding type and fixed installation type, the main disadvantage of the direct welding type structure is that the valve seat sealing surface can not be replaced after being worn, the whole valve is scrapped, therefore, the use of the valve seat pressing device is.
At present, the valve seat pressing device on the market is fixed and pressed in the valve body through the pressing ring, the sealing between the valve seat and the valve body is pressurized through the flange bolt to achieve sealing, so that the pretightening force of the flange bolt is increased, the connection is unstable, meanwhile, the valve seat is mounted in a troublesome manner, and therefore the problems are solved by urgently needing a valve seat pressing device on the market.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a disk seat closing device to provide the current cut-off valve closing device disk seat and the not good and the difficult problem of installing of disk seat of valve body connection stability among the above-mentioned background of solution.
In order to achieve the above object, the utility model provides a following technical scheme: a valve seat pressing device comprises a valve body, wherein a flow inlet is formed in one side of the valve body, a flow outlet is formed in the other side of the valve body, a valve cover is arranged below the valve body, a pressing cap is arranged above the valve body, a hand wheel is arranged above the pressing cap, a groove is formed in the inner wall of the valve body, an annular convex block is arranged above the groove, a plurality of flange bolts are arranged at the lower end of the valve cover, a plurality of flange nuts are arranged outside the plurality of flange bolts, a sealing gasket is arranged between the valve body and the valve cover, a valve rod is arranged at the lower end of the hand wheel, a valve clack is arranged at the lower end of the valve rod, a limiting ring is arranged on one side of the groove, a fastening screw is arranged at the lower end of the limiting ring, a plurality of fastening screws are arranged, and a check nut, an annular pressing plate is arranged above the limiting ring, an annular pressing ring is arranged above the annular pressing plate, and a valve seat is arranged above the annular pressing ring.
Preferably, the valve body is fixedly connected with the inflow port and the outflow port.
Preferably, the groove is attached to the limiting ring.
Preferably, the valve rod is fixedly connected with the hand wheel and the valve clack, and the valve rod is connected with the valve body through threads.
Preferably, a filling block is arranged below the pressing cap, the valve body is in threaded connection with the pressing cap, and the valve rod is in threaded connection with the filling block.
Preferably, the valve body is in threaded connection with the valve cover, and the limiting ring is connected with the annular pressing plate through a fastening screw.
Compared with the prior art, the beneficial effects of the utility model are that:
1. this disk seat closing device is through setting up recess and spacing collar, and the recess blocks the spacing collar, is provided with annular clamp plate and annular clamp ring between disk seat and the spacing collar, and annular clamp plate and annular clamp ring fixed connection, the axial force conversion that the valve clack acts on the disk seat is the disk seat to the pressure of valve body, and it is spacing to have overcome traditional disk seat and have relied on the valve gap, and the pretightning force that causes the flange bolt is too big finally leads to unstable problem.
2. The valve seat pressing device is characterized in that the groove, the annular convex block and the fastening screw are arranged, when the valve is installed, the pressing device consisting of the fastening screw, the locknut, the limiting ring and the annular pressing plate is fixedly installed in the valve body, the annular convex block abuts against the valve seat, the annular pressing ring is arranged between the valve seat and the annular pressing plate, and the valve seat is fixed through the carry of the fastening screw, so that the valve seat pressing device is simple and reliable to install.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial enlarged view of area A of the present invention;
fig. 3 is a schematic structural view of the spacing collar of the present invention.
In the figure: 1. a valve body; 2. a flow inlet; 3. an outflow port; 4. a valve cover; 5. pressing the cap; 6. a hand wheel; 7. a groove; 8. an annular projection; 9. a flange bolt; 10. a flange nut; 11. a sealing gasket; 12. a valve stem; 13. a valve flap; 14. fastening screws; 15. a locknut; 16. a limiting ring; 17. an annular pressure plate; 18. an annular compression ring; 19. a valve seat; 20. and (6) filling blocks.
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.
Referring to fig. 1-3, the present invention provides an embodiment: a valve seat pressing device comprises a valve body 1, wherein one side of the valve body 1 is provided with a flow inlet 2, the other side of the valve body 1 is provided with a flow outlet 3, a valve cover 4 is arranged below the valve body 1, a pressing cap 5 is arranged above the valve body 1, a hand wheel 6 is arranged above the pressing cap 5, the inner wall of the valve body 1 is provided with a groove 7, an annular bump 8 is arranged above the groove 7, the lower end of the valve cover 4 is provided with a flange bolt 9, the flange bolts 9 are provided with a plurality of flange bolts 9, the outer parts of the plurality of flange bolts 9 are respectively provided with a flange nut 10, a sealing washer 11 is arranged between the valve body 1 and the valve cover 4, the lower end of the hand wheel 6 is provided with a valve rod 12, the lower end of the valve rod 12 is provided with a valve clack 13, one side of the groove 7 is provided with a limiting ring 16, the lower end, an annular pressure plate 17 is arranged above the limiting ring 16, an annular pressing ring 18 is arranged above the annular pressure plate 17, and a valve seat 19 is arranged above the annular pressing ring 18.
Further, the valve body 1 is fixedly connected with the inflow port 2 and the outflow port 3, so that the connection relationship between the structures is more compact and stable.
Further, the groove 7 is attached to the limiting ring 16, so that the compressing device is fixedly connected with the valve body 1.
Further, the valve rod 12 is fixedly connected with the hand wheel 6 and the valve clack 13, the valve rod 12 is connected with the valve body 1 through threads, and the valve clack 13 and the valve seat 19 are driven to open and close by the rotation of the hand wheel 6 through the screwing of the valve rod 12.
Further, a filling block 20 is arranged below the pressing cap 5, the valve body 1 is in threaded connection with the pressing cap 5, and the valve rod 12 is in threaded connection with the filling block 20, so that the connection between the valve rod 12 and the valve body 1 is sealed.
Further, the valve body 1 is in threaded connection with the valve cover 4, and the limiting ring 16 is connected with the annular pressure plate 17 through the fastening screw 14, so that the valve body 1 is fixed and connected.
The working principle is as follows: when in use, firstly, the inner wall of the valve body 1 is provided with the groove 7 and the annular convex block 8, the groove 7 is jointed with the spacing ring 16, the fastening screw 14, the locknut 15, the spacing ring 16 and the annular pressure plate 17 are fixed together through screw threads, the pressing device is fixed on the valve body 1 through the clamping connection of the groove 7 and the limiting ring 16, an annular pressing ring 18 is arranged between the valve seat 19 and the annular pressing plate 17, the valve seat 19 is fixed by the carry of the fastening screw 14, the valve cover 4 and the valve body 1 are fixed by the flange bolt 9 and the flange nut 10, the axial force of the valve clack 13 acting on the valve seat 19 is converted into the pressure of the valve seat 19 on the valve body 1, the problem that the traditional valve seat 19 is limited by the valve cover 4 to cause the overlarge pretightening force of the flange bolt 9 to cause unstable use for a long time is solved, meanwhile, the valve seat 19 is fixed and pressed by one end of the valve cover 4, so that the operation is simple and the installation is convenient.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A disk seat closing device, includes valve body (1), its characterized in that: an inflow opening (2) is formed in one side of the valve body (1), an outflow opening (3) is formed in the other side of the valve body (1), a valve cover (4) is arranged below the valve body (1), a pressing cap (5) is arranged above the valve body (1), a hand wheel (6) is arranged above the pressing cap (5), a groove (7) is formed in the inner wall of the valve body (1), an annular convex block (8) is arranged above the groove (7), a flange bolt (9) is arranged at the lower end of the valve cover (4), a plurality of flange bolts (9) are arranged, a plurality of flange nuts (10) are arranged outside the flange bolts (9), a sealing gasket (11) is arranged between the valve body (1) and the valve cover (4), a valve rod (12) is arranged at the lower end of the hand wheel (6), a valve clack (13) is arranged at the lower end of the valve rod (12), one side of recess (7) is provided with spacing collar (16), the lower extreme of spacing collar (16) is provided with fastening screw (14), and fastening screw (14) are provided with a plurality of, be provided with lock nut (15) between fastening screw (14) and spacing collar (16), the top of spacing collar (16) is provided with annular clamp plate (17), the top of annular clamp plate (17) is provided with annular clamp ring (18), the top of annular clamp ring (18) is provided with disk seat (19).
2. The seat pressing device as claimed in claim 1, wherein: the valve body (1) is fixedly connected with the inflow port (2) and the outflow port (3).
3. The seat pressing device as claimed in claim 1, wherein: the groove (7) is attached to the limiting ring (16).
4. The seat pressing device as claimed in claim 1, wherein: the valve rod (12) is fixedly connected with the hand wheel (6) and the valve clack (13), and the valve rod (12) is connected with the valve body (1) through threads.
5. The seat pressing device as claimed in claim 1, wherein: the valve is characterized in that a filling block (20) is arranged below the pressing cap (5), the valve body (1) is in threaded connection with the pressing cap (5), and the valve rod (12) is in threaded connection with the filling block (20).
6. The seat pressing device as claimed in claim 1, wherein: the valve body (1) is in threaded connection with the valve cover (4), and the limiting ring (16) is connected with the annular pressing plate (17) through a fastening screw (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071711.2U CN210510295U (en) | 2019-07-10 | 2019-07-10 | Valve seat pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921071711.2U CN210510295U (en) | 2019-07-10 | 2019-07-10 | Valve seat pressing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210510295U true CN210510295U (en) | 2020-05-12 |
Family
ID=70582091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921071711.2U Active CN210510295U (en) | 2019-07-10 | 2019-07-10 | Valve seat pressing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210510295U (en) |
-
2019
- 2019-07-10 CN CN201921071711.2U patent/CN210510295U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |