CN220816591U - Lifting check gate valve - Google Patents
Lifting check gate valve Download PDFInfo
- Publication number
- CN220816591U CN220816591U CN202322021270.8U CN202322021270U CN220816591U CN 220816591 U CN220816591 U CN 220816591U CN 202322021270 U CN202322021270 U CN 202322021270U CN 220816591 U CN220816591 U CN 220816591U
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- Prior art keywords
- valve body
- valve
- sealing
- mounting bracket
- rod
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- 238000007789 sealing Methods 0.000 claims description 38
- 238000009434 installation Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to the technical field of valves, in particular to a lifting check gate valve, which comprises a right valve body and a left valve body arranged on the left side of the right valve body, wherein the left valve body and the right valve body are mutually communicated and integrally formed, a wedge gate valve device is arranged in the right valve body, a traversing check device is arranged in the left valve body and comprises a valve clack which is transversely opened and closed, a return spring, a limiting middle pivot rod, a front end connecting rod, a mounting block, a first mounting bracket and a second mounting bracket, the first mounting bracket is fixedly welded at the position of the joint of the left valve body and the right valve body, the second mounting bracket is arranged at the medium inlet position of the left valve body, the mounting block is fixedly welded at the central position of the first mounting bracket, the right side of the limiting middle pivot rod is fixed on the first mounting bracket, the left side of the front end connecting rod is fixed on the second mounting bracket, the left end of the front end connecting rod is fixed on the limiting middle pivot rod, and the valve clack is arranged outside the limiting central rod and the return spring is propped against the right side of the valve clack.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a lifting check gate valve.
Background
The gate valve is a shutter, the moving direction of the shutter is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed, the gate valve can not be regulated and throttled, the gate valve is sealed by contacting the valve seat and the shutter, the metal material can be deposited on the sealing surface to increase the wear resistance, for example, at present, the Chinese patent with publication No. CN217539664U discloses a gate valve, which comprises a valve body, a valve cover arranged on the valve body, a valve rod arranged on the valve cover and extending into the valve body, a shutter arranged on the valve rod and positioned in the valve body, and valve seats arranged in the valve body and respectively positioned at two sides of the shutter and matched with the shutter to form a seal, the shutter comprises an upper sealing part matched with the valve seat to form a seal and a lower passing part with a channel, a filter screen is arranged on the channel, a shell with a cleaning cavity is arranged under the outer wall of the shutter, the cleaning cavity is communicated with the inner cavity of the valve body to pass the shutter, high-pressure spray heads are arranged at two sides of the filter screen in the cleaning cavity, a drain hole is arranged on the shell, and a shutter opening and closing piece is arranged on the drain hole.
Although the gate valve can realize convenient cleaning of the filter screen so as to prolong the service life of the gate valve, but: the gate valve has only one sealing measure, the gate plate and the valve seat can be worn due to medium flushing, structural aging and other factors, sealing failure is finally caused, and the check valve structure has no emergency treatment capability and cannot timely block the medium flowing back under the conditions of sudden medium flowing back and sealing failure.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model aims to provide the lifting check gate valve, which is provided with a double leakage and backflow preventing device through the structural design of an integrated valve body, and enhances the sealing performance under the condition of reducing the whole volume and weight of the valve body.
The technical aim of the utility model is realized by the following technical scheme:
the utility model provides a over-and-under type check gate valve, includes right valve body, sets up the left valve body in right valve body left side, left valve body and right valve body intercommunication each other, and both integrated into one piece, the inside of right valve body is equipped with wedge gate valve device, the inside of left valve body is equipped with sideslip formula non return device, sideslip formula non return device is horizontal inside the left valve body, sideslip formula non return device includes the valve clack of horizontal switching, reset spring, pivot rod, front end connecting rod, installation piece and first installing support, second installing support in spacing, first installing support fixed weld is in the junction position of left valve body and right valve body, the medium entry position of left valve body is located to the second installing support, the central point of installation piece fixed weld in first installing support, the right side of pivot rod is fixed on first installing support in spacing, the left side of pivot rod is fixed on the second installing support in the front end connecting rod, reset spring installs in the limit center rod outside, the valve clack is installed in the outside the pivot rod, and the right side of pivot rod is installed in the top of the gate valve body, the top of valve body is installed in the right side of valve body, the top of gate valve body is installed in the top of valve body, the top of valve body is installed in the top of the right side of gate valve body.
Further, a sealing mounting plate is embedded in the medium inlet at the left end of the left valve body, the second mounting bracket is fixedly welded between the sealing mounting plates, the leftmost end of the sealing mounting plate is fixedly connected with a sealing compensation block protruding outwards, and the sealing compensation block is tightly attached to the inner wall of the left valve body.
Further, the right end of the sealing mounting plate is fixedly connected with a sealing valve seat which is matched with the valve clack to realize sealing, and in an initial state, the left end of the valve clack is tightly attached to the right end of the sealing valve seat.
Further, flashboard control assembly includes valve rod, threaded rod and flashboard hand wheel, valve rod fixed connection is in the flashboard top, threaded rod fixed connection is in the valve rod top, flashboard hand wheel fixed connection is in the threaded rod top, the top sealing installation of going up the valve body is equipped with right valve gap, screw thread fit between threaded rod and the right valve gap, the flashboard hand wheel is located the upper end of right valve gap.
Further, a connecting screw is arranged between the right valve body and the upper valve body.
In summary, the utility model has the following beneficial effects:
① According to the utility model, one flange pair is removed, the independent valve bodies which are originally required to bear two sets of devices are welded together, and the two valve bodies are combined into one valve body, so that the installation length and weight of the valve are greatly reduced, and one system leakage point is reduced after the flange pair is omitted;
② According to the utility model, the transverse moving type self-adaptive check device for auxiliary sealing is added on the medium inlet side at the left side of the gate valve, the reliability of reverse sealing of the valve is further improved by double protection, and the conditions of reverse flow and sealing failure can be effectively treated under the conditions of sudden reverse flow and leakage;
③ According to the utility model, the replaceable sealing structure is embedded and installed at the inlet position of the valve body, so that the erosion and damage of medium to the valve body structure are reduced, and the service life of the valve body is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and together with the description serve to explain the utility model, if necessary:
fig. 1 is a structural diagram of the present utility model.
In the figure, 1, right valve body; 2. a left valve body; 3. a valve flap; 4. a return spring; 5. a limiting middle pivot rod; 6. a front end connecting rod; 7. a mounting block; 8. a first mounting bracket; 9. a second mounting bracket; 10. a seal mounting plate; 11. a seal compensation block; 12. sealing the valve seat; 13. a valve stem; 14. a threaded rod; 15. a flashboard hand wheel; 16. a right valve cover; 17. a connecting screw; 18. a flashboard; 19. and an upper valve body.
Detailed Description
The foregoing and other features, aspects and advantages of the present utility model will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying fig. 1. The following embodiments are described in detail with reference to the drawings.
Exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.
Examples
The utility model provides a lift-type check gate valve, including right valve body 1, set up at the left valve body 2 of right valve body 1 left side, left valve body 2 communicates with right valve body 1 each other, and both integrated into one piece, the sealing connection structure of conventional flange pair has been removed to this kind of integral type's structure, combine into a whole with two valve bodies that need bear independent functional module, the valve body structure of independent intercommunication has been formed to the subassembly after the integration, the installation length and the weight of valve have been reduced in the whole, a system leakage point has been reduced, this valve both sides can adopt flange joint in the pipeline.
The inside of left valve body 2 is equipped with sideslip formula non return device, sideslip formula non return device is horizontal inside left valve body 2, sideslip formula non return device is including the valve clack 3 of horizontal switching, reset spring 4, pivot rod 5 in the spacing, front end connecting rod 6, installation piece 7 and first installing support 8, second installing support 9, first installing support 8 fixed weld is in the junction position of left valve body 2 and right valve body 1, the medium entry position of left valve body 2 is located to second installing support 9, installation piece 7 fixed weld is in the central point of first installing support 8, the right side of pivot rod 5 is fixed on first installing support 8 in the spacing, the left side of pivot rod 6 is fixed on second installing support 9 in the spacing, pivot rod 5's left end in the spacing is fixed to front end connecting rod 6, reset spring 4 installs in pivot rod 5 outside in the spacing, valve clack 3 installs in the outside pivot rod 5 in the spacing, and reset spring 4 top is tight 3's right side.
The medium inlet position embedding of left valve body 2 left end is equipped with sealed mounting panel 10, second installing support 9 fixed welding is between sealed mounting panel 10, sealed compensation piece 11 of outside convex is fixedly connected with to sealed mounting panel 10's left end, sealed compensation piece 11 is hugged closely the inner wall installation of left valve body 2, the original structure of valve body has been replaced in the installation of sealed compensation piece 11, after filling in left valve body 2 inside, long-term operating condition is down, be difficult to produce the erosion and corrosion influence to left valve body 2 inner wall, if sealed compensation piece 11, the deformation after the structure of sealed mounting panel 10 appears, the damage condition, also can realize sealed restoration through this structure of change in time, for valve body itself, greatly prolonged its life, sealed disk seat 12 is realized with valve clack 3 cooperation to sealed fixedly connected with in the right-hand member of sealed mounting panel 10, the right-hand member of sealed disk seat 12 is hugged closely to the left end of valve clack 3 under the initial condition.
The inside of right valve body 1 is equipped with wedge gate valve device, wedge gate valve device includes flashboard 18, fix the flashboard 18 control assembly in flashboard 18 top, upper valve body 19 is installed at the top of right valve body 1, install connecting screw 17 between right valve body 1 and the upper valve body 19, flashboard 18 is installed perpendicularly in the inside of right valve body 1 and upper valve body 19, flashboard 18 control assembly includes valve rod 13, threaded rod 14 and flashboard hand wheel 15, valve rod 13 fixed connection is in flashboard 18 top, threaded rod 14 fixed connection is in valve rod 13 top, flashboard hand wheel 15 fixed connection is in threaded rod 14 top, the top sealing installation of upper valve body 19 is equipped with right valve gap 16, threaded rod 14 and right valve gap 16 between screw-thread fit, flashboard hand wheel 15 is located right valve gap 16's upper end.
When the valve is in operation, a medium enters the whole valve body flow passage from the medium inlet at the left end of the left valve body 2, under the action of medium pressure, the transverse valve clack 3 is naturally pushed open, the reset spring 4 is changed into a contracted state under the action of pressure, at the moment, the medium can enter the gate valve flow passage at the right side through the passage between the valve clack 3 and the sealing valve seat 12, when the gate plate 18 is opened, the medium smoothly passes through the gate plate 18 and flows out from the right side of the valve, when the gate plate 18 is closed, the valve is closed, even if the check valve leaks, the reliable cutoff can be realized, and the internal leakage of the valve is prevented.
When the flashboard 18 is in an open state and medium backflow occurs, the valve clack 3 automatically clings to the sealing valve seat 12 under the action of pressure difference on two sides, and the gap between the valve clack 3 and the sealing valve seat is closed, so that the valve is closed, the medium backflow is prevented, and if the sealing performance of the flashboard 18 is poor at the moment, the flashboard 18 is manually closed through the flashboard hand wheel 15, so that the valve is reliably sealed.
While the utility model has been described in connection with certain embodiments, it is not intended that the utility model be limited thereto; for those skilled in the art to which the present utility model pertains and the related art, on the premise of based on the technical scheme of the present utility model, the expansion, the operation method and the data replacement should all fall within the protection scope of the present utility model.
Claims (5)
1. The utility model provides a lift check gate valve which characterized in that: the valve comprises a right valve body (1), a left valve body (2) arranged on the left side of the right valve body (1), wherein the left valve body (2) and the right valve body (1) are mutually communicated and are integrally formed, a wedge-type gate valve device is arranged in the right valve body (1), a transverse moving type check device is arranged in the left valve body (2), the transverse moving type check device is transversely arranged in the left valve body (2), the transverse moving type check device comprises a valve clack (3) which is transversely opened and closed, a return spring (4), a limiting middle pivot rod (5), a front end connecting rod (6), a mounting block (7) and a first mounting bracket (8) and a second mounting bracket (9), the first mounting bracket (8) is fixedly welded at the connecting position of the left valve body (2) and the right valve body (1), the second mounting bracket (9) is arranged at the medium inlet position of the left valve body (2), the mounting block (7) is fixedly welded at the center position of the first mounting bracket (8), the right side of the limiting middle pivot rod (5) is fixedly arranged on the first mounting bracket (8), the front end connecting rod (6) is fixedly arranged on the front end of the left pivot rod (5) and fixedly arranged on the front end (5), the valve clack (3) is arranged outside the pivot rod (5) in the limiting mode, the reset spring (4) is propped against the right side of the valve clack (3), the wedge gate valve device comprises a gate plate (18) and a gate plate control assembly fixed above the gate plate (18), an upper valve body (19) is arranged at the top of the right valve body (1), and the gate plate (18) is vertically arranged inside the right valve body (1) and the upper valve body (19).
2. The lift check gate valve of claim 1, wherein: the sealing device is characterized in that a sealing mounting plate (10) is fixedly embedded in a medium inlet at the left end of the left valve body (2), the second mounting bracket (9) is fixedly welded between the sealing mounting plates (10), the leftmost end of the sealing mounting plate (10) is fixedly connected with a sealing compensation block (11) protruding outwards, and the sealing compensation block (11) is tightly attached to the inner wall of the left valve body (2).
3. The lift check gate valve of claim 2, wherein: the right end of the sealing mounting plate (10) is fixedly connected with a sealing valve seat (12) which is matched with the valve clack (3) to realize sealing, and in an initial state, the left end of the valve clack (3) is tightly attached to the right end of the sealing valve seat (12).
4. The lift check gate valve of claim 1, wherein: the flashboard control assembly comprises a valve rod (13), a threaded rod (14) and a flashboard hand wheel (15), wherein the valve rod (13) is fixedly connected to the top of a flashboard (18), the threaded rod (14) is fixedly connected to the top of the valve rod (13), the flashboard hand wheel (15) is fixedly connected to the top of the threaded rod (14), a right valve cover (16) is arranged at the top of the upper valve body (19) in a sealing manner, threads are matched between the threaded rod (14) and the right valve cover (16), and the flashboard hand wheel (15) is located at the upper end of the right valve cover (16).
5. The lift check gate valve of claim 1, wherein: a connecting screw (17) is arranged between the right valve body (1) and the upper valve body (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021270.8U CN220816591U (en) | 2023-07-31 | 2023-07-31 | Lifting check gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322021270.8U CN220816591U (en) | 2023-07-31 | 2023-07-31 | Lifting check gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816591U true CN220816591U (en) | 2024-04-19 |
Family
ID=90700336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322021270.8U Active CN220816591U (en) | 2023-07-31 | 2023-07-31 | Lifting check gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816591U (en) |
-
2023
- 2023-07-31 CN CN202322021270.8U patent/CN220816591U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |