CN211975933U - Valve plate closing-preventing over-position and jacking-opening device of wedge gate valve - Google Patents
Valve plate closing-preventing over-position and jacking-opening device of wedge gate valve Download PDFInfo
- Publication number
- CN211975933U CN211975933U CN202020462548.9U CN202020462548U CN211975933U CN 211975933 U CN211975933 U CN 211975933U CN 202020462548 U CN202020462548 U CN 202020462548U CN 211975933 U CN211975933 U CN 211975933U
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- Prior art keywords
- valve plate
- screw rod
- valve
- valve body
- wedge gate
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- 238000012856 packing Methods 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 238000004939 coking Methods 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model relates to a wedge gate valve plate anti-closing over-position and jacking device, which comprises a valve body arranged on a system pipeline, wherein a screw rod is arranged at the bottom of the valve body in a movable sealing way and is in threaded connection with a threaded hole on the valve body; the axis of screw rod is parallel with the moving direction of valve plate, and the fixed movable block that sets up and contradict bottom the valve plate of the one end that stretches into in the valve body on the screw rod. It is widely used in metallurgy and coking industries. The device can effectively eliminate the adverse effect caused by the valve plate being closed to be over-positioned and not being opened.
Description
Technical Field
The utility model relates to a valve preparation technical field, concretely relates to wedge gate valve plate is prevented closing and is crossed position and top-opening device.
Background
The existing wedge gate valve is forced to seal, the sealing force is large, the valve is easy to be closed and over-positioned when being closed, and when the valve is required to be opened, the valve plate does not act, so that the sealing performance of the valve is greatly reduced, and even the production is stopped.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wedge gate valve plate prevents closing dislocation and top-opening device.
In order to achieve the above object, the utility model provides a following technical scheme: a wedge gate valve plate anti-closing over-position and jacking device comprises a valve body arranged on a system pipeline, wherein a screw rod is movably and hermetically arranged at the bottom of the valve body in a penetrating manner, and is in threaded connection with a threaded hole in the valve body; the axis of screw rod is parallel with the moving direction of valve plate, and the fixed movable block that sets up and contradict bottom the valve plate of the one end that stretches into in the valve body on the screw rod.
Furthermore, the screw rod is provided with scales.
Furthermore, a connecting seat is fixedly arranged at the bottom of the valve body, the screw rod penetrates through the connecting seat, and the inner wall of the connecting seat and the outer wall of the screw rod form a stuffing box filled with stuffing; the bottom of the stuffing box is provided with a stuffing gland.
Furthermore, the connecting seat is fixed on the valve body through a stud and a nut. Simple structure, convenient manufacture, low cost, good stability, difficult damage and prolonged service life.
Further, the packing gland is connected with the connecting seat through a bolt and a nut. The packing is arranged in the packing box, and the packing gland is fixed on the connecting seat through bolts and nuts to realize sealing.
The technical effects of the utility model are as follows: the device is mainly used for the application field of wedge gate valves, and particularly relates to a valve plate which is closed to be over-positioned and cannot be opened. It is widely used in metallurgy and coking industries. The device can effectively eliminate the adverse effect caused by the valve plate being closed to be over-positioned and not being opened. The problem of the valve plate of wedge gate valve close the dislocation and open after closing can be opened is solved. The wedge type double-gate plate structure has the advantages of simple structure, reliable medium cutting, flexible operation and convenient use and maintenance, and is the most economic control valve for industrial gas and gas pipelines. The sealing surfaces of the valve body and the flashboard are ground and processed, and the sealing performance is excellent.
The wedge-shaped gate valve is sealed by the tight combination of two sealing surfaces on the wedge-shaped valve plate and two sealing surfaces on the valve body when the two sealing surfaces are wedged. The purpose of using a wedge gate is to increase the auxiliary sealing load so that a metal-sealing wedge gate valve can seal both high and low medium pressures. When the valve is closed, the valve rod is rotated clockwise, so that the sealing surface of the valve plate and the sealing surface of the valve body are sealed tightly to achieve sealing.
Drawings
FIG. 1 is a schematic view of the structure of the apparatus in the example.
Reference numerals: 1. a valve plate; 2. a valve body; 3. a movable block; 4. a screw; 5. a connecting seat; 6. a stuffing box; 7. a filler; 8. a packing gland; 9. a stud; 10. a nut; 11. a bolt; 12. and a nut.
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.
Examples
As shown in fig. 1, the device for preventing the valve plate of the wedge gate valve from being closed, over-position and opened by pushing comprises a valve body 2 arranged on a system pipeline, a screw rod 4 is movably and hermetically arranged at the bottom of the valve body 2 in a penetrating manner, and the screw rod 4 is in threaded connection with a threaded hole on the valve body 2; the axis of screw rod 4 is parallel with the moving direction of valve plate 1, and the one end that stretches into in the valve body 2 on the screw rod 4 is fixed to be set up with the movable block 3 that contradicts in valve plate 1 bottom.
The screw rod 4 is provided with scales, and the position of the valve plate 1 can be judged according to the scales.
The bottom of the valve body 2 is fixedly provided with a connecting seat 5, the screw rod 4 penetrates through the connecting seat 5, and the inner wall of the connecting seat 5 and the outer wall of the screw rod 4 form a stuffing box 6 filled with stuffing 7; the bottom of the stuffing box 6 is provided with a stuffing gland 8.
The connecting seat 5 is fixed on the valve body 2 through a stud bolt 9 and a nut 10.
The packing gland 8 is fixed on the connecting seat 5 through a bolt 11 and a nut 12. The packing 7 is arranged in the packing box 6, and the packing gland 8 is fixed at the bottom of the connecting seat 5 through a bolt 11 and a nut 12 to realize sealing.
The valve body 2 is installed on a system pipeline, the stuffing box 6 is welded on the connecting seat 5 at the bottom of the valve body, the screw rod 4 is communicated with the bottom of the valve plate 1 to drive the movable block 3 to be adjusted, the stuffing 7 is installed in the stuffing box 6, and the stuffing gland 8 is fixed on the connecting seat 5 through the bolt 11 and the nut 12 to realize sealing. The screw rod 4 is provided with scales, and the position of the valve plate 1 can be judged according to the scales. Once the valve plate 1 cannot be opened after being closed, the valve plate 1 can be jacked up by the screw rod 4.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (5)
1. A wedge gate valve plate anti-closing over-position and jacking device is characterized by comprising a valve body arranged on a system pipeline, wherein a screw rod is movably and hermetically arranged at the bottom of the valve body in a penetrating manner, and the screw rod is in threaded connection with a threaded hole in the valve body; the axis of screw rod is parallel with the moving direction of valve plate, and the fixed movable block that sets up and contradict bottom the valve plate of the one end that stretches into in the valve body on the screw rod.
2. The device for preventing the valve plate of the wedge gate valve from being closed, over-position and opened upwards as claimed in claim 1, wherein the screw is provided with scales.
3. The device for preventing the valve plate of the wedge gate valve from being closed, over-positioned and opened upwards according to claim 1, wherein a connecting seat is fixedly arranged at the bottom of the valve body, a screw rod penetrates through the connecting seat, and the inner wall of the connecting seat and the outer wall of the screw rod form a stuffing box filled with stuffing; and a packing gland is arranged at the inlet of the packing box.
4. The device for preventing the over-closing and the jacking of the wedge gate valve plate according to claim 3, wherein the connecting seat is fixed on the valve body through a stud and a nut.
5. The device for preventing the over-closing and the jacking of the valve plate of the wedge gate valve according to claim 3, wherein the packing gland is connected with the connecting seat through a bolt and a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020462548.9U CN211975933U (en) | 2020-04-02 | 2020-04-02 | Valve plate closing-preventing over-position and jacking-opening device of wedge gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020462548.9U CN211975933U (en) | 2020-04-02 | 2020-04-02 | Valve plate closing-preventing over-position and jacking-opening device of wedge gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211975933U true CN211975933U (en) | 2020-11-20 |
Family
ID=73383449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020462548.9U Active CN211975933U (en) | 2020-04-02 | 2020-04-02 | Valve plate closing-preventing over-position and jacking-opening device of wedge gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211975933U (en) |
-
2020
- 2020-04-02 CN CN202020462548.9U patent/CN211975933U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A wedge gate valve plate anti closing over position and top opening device Effective date of registration: 20231215 Granted publication date: 20201120 Pledgee: Bank of China Yangquan Branch Pledgor: YANGQUAN VALVE Co.,Ltd. Registration number: Y2023140000066 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |