CN219388790U - Novel flat gate valve - Google Patents
Novel flat gate valve Download PDFInfo
- Publication number
- CN219388790U CN219388790U CN202320786948.9U CN202320786948U CN219388790U CN 219388790 U CN219388790 U CN 219388790U CN 202320786948 U CN202320786948 U CN 202320786948U CN 219388790 U CN219388790 U CN 219388790U
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- CN
- China
- Prior art keywords
- valve
- rod
- flashboard
- valve body
- sealing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 claims abstract description 47
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model belongs to the technical field of valves, and particularly relates to a novel flat gate valve, which comprises a valve body, a valve cover, a valve rod, a gate plate and a hand wheel, wherein a medium channel is arranged in the valve body, the valve body is fixedly connected with the valve cover, the valve rod penetrates through the valve cover to extend into the valve body and is connected with the gate plate, the hand wheel is arranged at the top of the valve rod, a valve seat is also arranged in the valve body, the gate plate is arranged in the valve seat, jacking columns are arranged at two sides of the bottom of the valve seat, a sliding cavity is arranged in the gate plate, a sealing rod is arranged in the sliding cavity, the sealing rod extends out of the gate plate and is provided with a jacking disc at the bottom of the sealing rod, a sealing ring is arranged at the top of the sealing rod, a support is arranged at the bottom of the gate plate, a spring is arranged on the support, and the sealing rod is connected with the spring.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to a novel flat gate valve.
Background
The flat gate valve is widely used as a switch of a pipeline, the switch of the valve is realized by opening and closing a gate plate, but in the valve opening process, the valve starts to move from a fully closed position point, and before the valve, a medium can only appear behind the valve until the inner ring of the valve seat appears behind the channel hole, namely the valve starts to release pressure, and before the valve is in full-pressure operation, the operation force is large. Before the valve is decompressed, the sealing friction force between the valve seat and the flashboard is very large, especially when the caliber is larger or the pressure is higher, the valve seat and the flashboard can be more compact under the action of the total force of a medium, the sealing friction force between the valve seat and the flashboard can be larger, so that the service life of a sealing surface is reduced, the valve operation torque can be increased due to the large friction force, the executor load time can be prolonged, the adverse effect on the whole transmission chain can be increased, and the energy is not saved. As shown in fig. 5 and 6, in the conventional gate valve opening process, the valve starts to move from the fully closed position until the inner ring of the valve seat is arranged behind the passage hole, i.e. after the H stroke is required, the medium in the pipeline at the inlet end is gradually circulated into the pipeline behind the valve.
Disclosure of Invention
The present utility model is directed to overcoming the drawbacks of the prior art and providing a novel flat gate valve.
The technical scheme of the utility model is as follows: the utility model provides a novel flat gate valve, includes valve body, valve gap, valve rod, flashboard and hand wheel, be equipped with the medium passageway in the valve body, valve body and valve gap fixed connection, the valve rod passes the valve gap and stretches into in the valve body and connect the flashboard, the hand wheel sets up the valve rod top, the inside disk seat that still is equipped with of valve body, the flashboard sets up in the disk seat, disk seat bottom both sides are equipped with the jack post, be equipped with smooth chamber in the flashboard, smooth intracavity is equipped with the sealing rod, the sealing rod extends to outside the flashboard just sealing rod bottom is equipped with the footstock, the top of sealing rod is equipped with the sealing washer, its bottom is equipped with the support in the flashboard, be equipped with the spring on the support, the sealing rod is connected the spring.
The utility model further improves that: the spring is sleeved on the sealing rod, and limiting columns are arranged at the positions, corresponding to the springs, of the two sides of the sealing rod.
The utility model further improves that: two pressure relief holes are formed in the flashboard, one of the pressure relief holes is of an elliptical groove type structure, and the other pressure relief hole is of a circular hole.
The utility model further improves that: the hand wheel is connected with the valve rod through a coupler, a support is arranged above the valve cover, and the coupler is arranged on the support.
The utility model further improves that: the valve cover is detachably connected with the valve body through a plurality of screws.
The utility model further improves that: sealing gaskets are arranged at the joint of the valve body and the valve cover and the joint of the valve seat and the valve body.
The utility model further improves that: the surface of the valve seat is overlaid with a wear-resistant corrosion-resistant alloy layer.
The beneficial effects of the utility model are as follows: its simple structure, reasonable in design improves the flashboard structure, has solved the problem of valve full pressure operation, and the valve operating force is low, and the upper and lower rectilinear movement of flashboard body will be more smooth and easy, and this structure can effectively shorten sealed friction time, weakens simultaneously with the wearing and tearing between the disk seat, prolongs the life of flashboard and the sealed face of disk seat, improves the wholeness ability of valve simultaneously, easily promotes.
Drawings
FIG. 1 is a schematic diagram of the valve fully closed structure of the present utility model;
FIG. 2 is a schematic diagram of a fully open valve structure according to the present utility model;
FIG. 3 is a schematic view of the structure of the shutter plate in the present utility model;
FIG. 4 is a schematic view of the free state of the shutter in the present utility model;
FIG. 5 is a schematic diagram of a conventional valve in a fully closed state;
FIG. 6 is a schematic diagram of a conventional valve in a fully open state;
wherein: 1-valve body, 2-valve cover, 3-valve rod, 4-flashboard, 5-hand wheel, 6-medium channel, 7-screw, 8-shaft coupling, 9-support, 10-disk seat, 11-jack post, 12-sliding cavity, 13-sealing rod, 14-jack disc, 15-sealing ring, 16-support, 17-spring, 18-spacing post, 19-sealing gasket, 20-oval recess formula relief hole, 21-circular relief hole.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in the figure, the technical solution of this embodiment is: the utility model provides a novel flat gate valve, includes valve body 1, valve gap 2, valve rod 3, flashboard 4 and hand wheel 5, be equipped with medium passageway 6 in the valve body 1, can dismantle through a plurality of screws 7 between valve body 1 and the valve gap 2 and be connected, valve rod 3 passes valve gap 2 and stretches into in the valve body 1 and connect flashboard 4, hand wheel 5 pass through shaft coupling 8 with valve rod 3 connects, valve gap 2 top is equipped with support 9, shaft coupling 8 sets up on the support 9.
The valve is characterized in that a valve seat 10 is further arranged in the valve body 1, a layer of wear-resistant corrosion-resistant alloy layer is deposited on the surface of the valve seat, the flashboard 4 is arranged in the valve seat 10, jacking columns 11 are arranged on two sides of the bottom of the valve seat 10, and the jacking columns 11 can control the depth of screwing into the valve body to control the opening and closing stroke of the pressure relief channel so as to adjust the valve operating force. The valve is characterized in that a sliding cavity 12 is arranged in the flashboard 4, a sealing rod 13 is arranged in the sliding cavity 12, the sealing rod 13 extends out of the flashboard 4, a top disk 14 is arranged at the bottom of the sealing rod 13, a sealing ring 15 is arranged at the top of the sealing rod 13, a support 16 is arranged at the bottom of the flashboard 4, a spring 17 is arranged on the support 16, the spring 17 is sleeved below the sealing rod 13, a limit column 18 is arranged on the sealing rod 13 corresponding to the spring 17, and a sealing gasket 19 is arranged at the joint of the valve body 1 and the valve cover 2 and the joint of the valve seat 10 and the valve body 1. The flashboard is provided with an upper pressure relief hole and a lower pressure relief hole, one pressure relief hole 20 is of an oval groove type structure, the flashboard pressure relief hole is arranged into a groove type structure, the upward pushing out of a medium is facilitated when the sealing ring 15 is arranged, the upward movement of a sealing rod is prevented from being blocked due to the fact that the medium is not discharged, and the other pressure relief hole 21 is of a circular hole.
The working principle of this embodiment is that the gate plate 4 moves upwards in the closing process of the valve, the gate plate pressure release hole is in a communicating state, so that the valve is not in full pressure operation, and therefore the valve operating force is reduced, the gate plate 4 drives the top disc 14 to move upwards when moving upwards until the top column 11 plays a limiting role for the top disc 14 when the top column 11 is propped against the top disc 14, at this time, the sealing rod 13 is driven to move downwards, the sealing ring 15 moves downwards along with the sealing rod 13 until the valve closing end point, and at this time, the sealing ring 15 just closes the pressure release hole channel, so that the pipeline sealing is realized, and the closing process of the new structure valve is lower than the operating force of a conventional gate valve. In the opening process of the valve, the spring 17 is in a compression power storage state, along with the continuous downward movement of the flashboard 4, the sealing rod 13 continuously moves upwards with the sealing ring 15 under the action of the spring 17, after a small segment of flashboard travel, the pressure release channel is fully communicated, the valve is not fully pressed any more, and the remaining opening process is lower in operation force than a conventional gate valve.
It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a novel flat gate valve, includes valve body, valve gap, valve rod, flashboard and hand wheel, be equipped with the medium passageway in the valve body, valve body and valve gap fixed connection, the valve rod passes the valve gap and stretches into in the valve body and connect the flashboard, the hand wheel sets up the valve rod top, the inside disk seat that still is equipped with of valve body, its characterized in that: the flashboard sets up in the disk seat, disk seat bottom both sides are equipped with the jack-prop, be equipped with smooth chamber in the flashboard, be equipped with the sealing rod in the smooth chamber, the sealing rod extends to outside the flashboard just the sealing rod bottom is equipped with the footstock, the top of sealing rod is equipped with the sealing washer, its bottom is equipped with the support in the flashboard, be equipped with the spring on the support, the sealing rod coupling spring.
2. The novel flat gate valve according to claim 1, wherein: the spring is sleeved on the sealing rod, and limiting columns are arranged at the positions, corresponding to the springs, of the two sides of the sealing rod.
3. The novel flat gate valve according to claim 1, wherein: two pressure relief holes are formed in the flashboard, one of the pressure relief holes is of an elliptical groove type structure, and the other pressure relief hole is of a circular hole.
4. The novel flat gate valve according to claim 1, wherein: the hand wheel is connected with the valve rod through a coupler, a support is arranged above the valve cover, and the coupler is arranged on the support.
5. The novel flat gate valve according to claim 1, wherein: the valve cover is detachably connected with the valve body through a plurality of screws.
6. The novel flat gate valve according to claim 1, wherein: sealing gaskets are arranged at the joint of the valve body and the valve cover and the joint of the valve seat and the valve body.
7. The novel flat gate valve according to claim 1, wherein: the surface of the valve seat is overlaid with a wear-resistant corrosion-resistant alloy layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320786948.9U CN219388790U (en) | 2023-04-11 | 2023-04-11 | Novel flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320786948.9U CN219388790U (en) | 2023-04-11 | 2023-04-11 | Novel flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219388790U true CN219388790U (en) | 2023-07-21 |
Family
ID=87166448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320786948.9U Active CN219388790U (en) | 2023-04-11 | 2023-04-11 | Novel flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219388790U (en) |
-
2023
- 2023-04-11 CN CN202320786948.9U patent/CN219388790U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215000 No.42, Guijia lane, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Harbin Electric Suzhou Dauson Valve Co.,Ltd. Country or region after: China Address before: No. 42, Guijia Lane, Industrial Park, Suzhou City, Jiangsu Province, 215000 Patentee before: SUZHOU DOUSON VALVE CO.,LTD. Country or region before: China |