CN219198189U - Zero friction sealing gate valve - Google Patents
Zero friction sealing gate valve Download PDFInfo
- Publication number
- CN219198189U CN219198189U CN202320792747.XU CN202320792747U CN219198189U CN 219198189 U CN219198189 U CN 219198189U CN 202320792747 U CN202320792747 U CN 202320792747U CN 219198189 U CN219198189 U CN 219198189U
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing plates
- valve rod
- zero friction
- gate valve
- Prior art date
- 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.)
- Active
Links
Images
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
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model provides a zero friction sealing gate valve, includes valve body, operating device, sealing member, and the valve body is formed with two water conservancy diversion mouth of relative arrangement, and operating device connects and drives the sealing member and remove between closed position and open position, its characterized in that: the sealing piece comprises two sealing plates and an elastic connecting part connected between the two sealing plates, the operating mechanism is provided with a valve rod capable of moving up and down, the lower end of the valve rod is provided with a connector, the connector is provided with two inclined holes, the two sealing plates are respectively provided with a connecting shaft penetrating through the inclined holes, when the valve rod drives the sealing piece to move to a closing position, the inclined holes and the connecting shafts interact to enable the two sealing plates to open relatively so as to seal the two guide openings, when the valve rod drives the sealing piece to move from the closing position to an opening position, the two sealing plates are relatively closed under the elastic action of the elastic connecting part, and the two sealing plates are separated from the guide openings in a zero friction way.
Description
Technical Field
The present utility model relates to a gate valve.
Background
The existing gate valves are all friction sealing structures, in the process that the valve is closed, the gate plate makes the gate plate sealing surface squeeze the valve body valve seat sealing surface by means of the longitudinal force exerted by the valve rod downwards to realize sealing, otherwise, the valve is opened, the gate plate is forced to move upwards by the aid of the force of lifting the valve rod and then is separated from the valve body sealing surface, and the valve is opened; in the stage that the valve is close to or just opens, the sealing part can scrape the valve seat sealing surface, leads to the valve sealing surface to be scratched and influence sealing performance, can not guarantee that the sealed valve can seriously influence the normal production activity of enterprise, and serious can lead to the emergence of incident.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a zero-friction sealing gate valve, in particular to zero-friction sealing of a sealing element in the closing and opening processes of the valve, so that abrasion among parts is prevented, and the sealing effect of the sealing element is affected.
The utility model provides a zero friction sealing gate valve, includes valve body, operating device, sealing member, and the valve body is formed with two water conservancy diversion mouth of relative arrangement, and operating device connects and drives the sealing member and remove between closed position and open position, its characterized in that: the sealing piece comprises two sealing plates and an elastic connecting part connected between the two sealing plates, the operating mechanism is provided with a valve rod capable of moving up and down, the lower end of the valve rod is provided with a connector, the connector is provided with two inclined holes, the two sealing plates are respectively provided with a connecting shaft penetrating through the inclined holes, when the valve rod drives the sealing piece to move to a closing position, the two sealing plates are opened relatively by interaction of the inclined holes and the connecting shafts to seal the two flow guide ports, when the valve rod drives the sealing piece to move from the closing position to the opening position, the two sealing plates are closed relatively under the elastic action of the elastic connecting part, the two sealing plates are separated from the flow guide ports by zero friction, zero friction is very small, the inclined holes and the connecting shafts can convert the longitudinal thrust of the valve rod into transverse thrust, the two sealing plates are opened relatively to seal the two flow guide ports by zero friction, and the elastic connecting part can restore the two sealing plates to be closed relatively by friction to separate from the flow guide ports.
The two inclined holes are symmetrically arranged left and right, and the inclined holes incline inwards from top to bottom, so that when the valve rod moves relative to the sealing piece, the two inclined holes and the two connecting shafts interact to generate two transverse thrusts with opposite directions and the same size, the two transverse thrusts respectively act on the two sealing plates, so that the two sealing plates are opened relatively to seal the two diversion holes, the stress of the two sealing plates can be guaranteed to be the same, and the sealing effect is improved.
The two sealing plates are arranged in bilateral symmetry, the sealing plates incline inwards from top to bottom, the elastic connecting part is connected between the lower parts of the two sealing plates, the valve rod is connected between the upper parts of the two sealing plates, the structure makes the opening of the two sealing plates easier, and the valve rod can enable the two sealing plates to open by adopting smaller downward thrust.
The two diversion openings are symmetrically arranged left and right, the diversion openings incline inwards from top to bottom, when the sealing piece moves to the closing position, the lower edge of the diversion opening limits the sealing piece to move downwards, so that the inclined holes and the connecting shaft relatively move, and finally the two sealing plates are relatively opened to close the two diversion openings.
The elastic connecting part is of an arc-shaped platy structure, and the structure can increase the elastic deformation of the elastic connecting part.
The operating mechanism comprises a vertically arranged mounting tube, the upper section of the valve rod is positioned in the mounting tube, a long yielding hole extending along the length direction of the valve rod is formed in the tube wall of the mounting tube, an indicator penetrating through the long yielding hole is arranged on the valve rod, a graduated scale arranged along the length direction of the valve rod is arranged on the outer wall of the mounting tube, and the indicator is matched with the graduated scale to display the feeding amount of the valve rod.
The opposite surfaces of the two sealing plates are respectively provided with two lugs which are arranged in parallel at intervals, and the connecting shaft is connected between the two lugs.
The two sealing plates and the elastic connecting part are integrally formed.
The sealing plates are provided with protruding guide parts, the guide parts of the sealing plates are oppositely arranged at intervals, a guide groove is formed between the guide parts of the sealing plates, a guide rail matched with the guide groove is arranged on the valve body, the guide rail is matched with the guide groove to guide lifting movement of the sealing element, and the offset of the sealing element under the pushing of medium pressure can be reduced.
The sealing plate is of a circular plate-shaped structure.
Drawings
The utility model is described in further detail below with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of the present utility model with the seal in a closed position.
Fig. 2 is a cross-sectional view of the present utility model with the seal in an open position.
Fig. 3 is a top view of the seal.
Detailed Description
Referring to fig. 1 and 3, a zero friction seal gate valve comprises a valve body 1, an operating mechanism 4 and a sealing element 2, wherein the valve body 2 is provided with two opposite flow guide ports 11, the two flow guide ports 11 are symmetrically arranged left and right, the flow guide ports 11 incline inwards from top to bottom, the operating mechanism 4 comprises a bracket 45, a valve rod 41, an operating hand wheel 42, a bevel gear transmission assembly and a screw nut pair, the bevel gear transmission assembly is arranged in a shell 44 at the top of the bracket 45, the screw nut pair comprises a nut and a screw rod 43, the nut is rotatably arranged in the shell 44 at the top of the bracket 45, the screw rod 43 is arranged in the bracket 45 and is in threaded fit with the nut, the lower end of the screw rod 43 is connected with the upper end of the valve rod 41, the bevel gear transmission assembly is operated by the operating hand wheel 42, the operating hand wheel 42 drives the nut to rotate through the bevel gear transmission assembly, so that the screw rod 43 and the valve rod 41 are driven to move up and down, and the operating mechanism 4 is a well known prior art, and the details will not be described herein.
The support 45 includes the installation pipe 451 of vertical arrangement, and the pipe wall of installation pipe 451 has seted up long hole 452 of stepping down that extends along its length direction, is provided with the indicator 411 of passing long hole of stepping down on the valve rod 41, and the outer wall of installation pipe 451 is provided with the scale of arranging along its length direction, indicator 411 and scale cooperation in order to show the feed volume of valve rod 41.
The lower end of the valve rod 41 is movably connected with the sealing element 2 through the connector 3, the descending and the ascending of the valve rod 41 can drive the sealing element 2 to move between a closing position and an opening position, two bilaterally symmetrical inclined holes 31 are formed on the connector 3, and the inclined holes 31 incline inwards from top to bottom.
The sealing member 2 comprises two sealing plates 21 and an elastic connecting part 24 connected between the two sealing plates 21, the sealing plates 21 are of a circular plate-shaped structure, an annular sealing surface 211 matched with the diversion opening 11 is formed on the outer side surface of each sealing plate 21, the two sealing plates 21 are symmetrically arranged left and right, the sealing plates 21 incline inwards from top to bottom, the elastic connecting part 24 is connected between the lower parts of the two sealing plates 21, the connector 3 is connected between the upper parts of the two sealing plates 21, two lugs 22 which are arranged at intervals in parallel are respectively arranged on the opposite surfaces of the two sealing plates 21, connecting shafts 25 which cross inclined holes 31 are arranged between the two lugs 22, mounting holes 221 for the connecting shafts to pass are formed on the lugs 22, namely, the connector 3 is partially positioned between the two lugs 22, the elastic connecting part 24 is of an arc plate-shaped structure, the structure can increase the elastic deformation of the elastic connecting part 24, and the two sealing plates 21 and the elastic connecting part 24 are integrally formed, and particularly can be made of carbon steel, stainless steel or alloy steel.
When the valve rod 41 drives the sealing element 2 to move to the closing position, the inclined holes 31 and the connecting shafts 25 interact to enable the two sealing plates 21 to be relatively opened to close the two flow guide openings 11, specifically, when the sealing element 2 moves downwards to the closing position, the lower edge of the flow guide opening 11 limits the sealing element 2 to move downwards, so that the connector 3 moves downwards relative to the sealing element 2, in the process, the two inclined holes 31 and the two connecting shafts 25 interact to generate two transverse thrust forces with opposite directions and the same magnitude, the two transverse thrust forces respectively act on the two sealing plates 21 to enable the two sealing plates 21 to be relatively opened to seal the two flow guide openings 11, so that the stress of the two sealing plates 21 is the same, the sealing effect is improved, when the valve rod 41 drives the sealing element 2 to move from the closing position to the opening position, the two sealing plates 21 are relatively close under the elastic action of the elastic connecting parts 24, the two sealing plates 21 are separated from the diversion port 11 in a zero friction way, wherein the zero friction means that the friction force is very small or almost no friction, the inclined hole 31 and the connecting shaft 25 can convert the longitudinal thrust of the valve rod 41 into the transverse thrust, the two sealing plates 21 are relatively opened to close the two diversion port 11 in a zero friction way, the elastic connecting part 24 can elastically reset the two sealing plates 21 to be relatively closed to separate from the diversion port 11 in a friction way, the friction force between the sealing plates 21 and the diversion port 11 is very small and can be almost ignored in the process, and compared with the friction sealing structure in the prior art, the utility model can greatly provide the service life and sealing effect of products, so that the utility model can be applied to more severe working conditions and play a role in guaranteeing the safe production of enterprises.
Protruding guide portions 23 are formed on two sides of the two sealing plates 21, the guide portions 23 of the two sealing plates 21 are arranged oppositely, a guide groove A is formed between the two guide portions 23, a guide rail matched with the guide groove 23 is arranged on the valve body 1, the guide rail is matched with the guide groove A to guide lifting movement of the sealing element 2, and offset of the sealing element 2 under the pushing of medium pressure can be reduced.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, i.e., the utility model is not to be limited to the details of the claims and the description, but rather is to cover all modifications which are within the scope of the utility model.
Claims (10)
1. The utility model provides a zero friction sealing gate valve, includes valve body, operating device, sealing member, and the valve body is formed with two water conservancy diversion mouth of relative arrangement, and operating device connects and drives the sealing member and remove between closed position and open position, its characterized in that: the sealing piece comprises two sealing plates and an elastic connecting part connected between the two sealing plates, the operating mechanism is provided with a valve rod capable of lifting and moving, the lower end of the valve rod is provided with a connector, the connector is provided with two inclined holes, the two sealing plates are respectively provided with a connecting shaft penetrating through the inclined holes, when the valve rod drives the sealing piece to move to a closing position, the inclined holes and the connecting shafts interact to enable the two sealing plates to open relatively to close the two diversion openings, when the valve rod drives the sealing piece to move from the closing position to the opening position, the two sealing plates are close relatively under the elastic action of the elastic connecting part, and zero friction of the two sealing plates is separated from the diversion openings.
2. A zero friction seal gate valve as defined in claim 1 wherein: the two inclined holes are symmetrically arranged left and right, and the inclined holes incline inwards from top to bottom.
3. A zero friction seal gate valve as defined in claim 2 wherein: the two sealing plates are arranged symmetrically left and right, the sealing plates incline inwards from top to bottom, the elastic connecting part is connected between the lower parts of the two sealing plates, and the valve rod is connected between the upper parts of the two sealing plates.
4. A zero friction seal gate valve according to claim 3 and wherein: the two diversion openings are symmetrically arranged left and right, the diversion openings incline inwards from top to bottom, when the sealing piece moves to the closing position, the lower edge of the diversion opening limits the sealing piece to move downwards, so that the inclined holes and the connecting shaft relatively move, and finally the two sealing plates are relatively opened to close the two diversion openings.
5. A zero friction sealing gate valve according to any one of claims 1 to 4 wherein: the elastic connecting part is of an arc-shaped platy structure.
6. A zero friction sealing gate valve according to any one of claims 1 to 4 wherein: the operating mechanism comprises a vertically arranged mounting tube, the upper section of the valve rod is positioned in the mounting tube, a long yielding hole extending along the length direction of the valve rod is formed in the tube wall of the mounting tube, an indicator penetrating through the long yielding hole is arranged on the valve rod, a graduated scale arranged along the length direction of the valve rod is arranged on the outer wall of the mounting tube, and the indicator is matched with the graduated scale to display the feeding amount of the valve rod.
7. The zero friction seal gate valve of claim 6, wherein: the opposite surfaces of the two sealing plates are respectively provided with two lugs which are arranged in parallel at intervals, and the connecting shaft is connected between the two lugs.
8. A zero friction sealing gate valve according to any one of claims 1 to 4 wherein: the two sealing plates and the elastic connecting part are integrally formed.
9. A zero friction sealing gate valve according to any one of claims 1 to 4 wherein: the two sealing plates are provided with protruding guide parts, the guide parts of the two sealing plates are arranged oppositely at intervals, a guide groove is formed between the guide parts of the two sealing plates, and a guide rail matched with the guide groove is arranged on the valve body.
10. A zero friction sealing gate valve according to any one of claims 1 to 4 wherein: the sealing plate is of a circular plate-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320792747.XU CN219198189U (en) | 2023-04-11 | 2023-04-11 | Zero friction sealing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320792747.XU CN219198189U (en) | 2023-04-11 | 2023-04-11 | Zero friction sealing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219198189U true CN219198189U (en) | 2023-06-16 |
Family
ID=86712124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320792747.XU Active CN219198189U (en) | 2023-04-11 | 2023-04-11 | Zero friction sealing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219198189U (en) |
-
2023
- 2023-04-11 CN CN202320792747.XU patent/CN219198189U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116379174A (en) | Zero friction sealing gate valve | |
| CN219198189U (en) | Zero friction sealing gate valve | |
| CN112728150A (en) | Ball valve | |
| CN219221318U (en) | Sealing element for gate valve and gate valve | |
| CN112081930B (en) | Industrial butterfly valve with accurate opening and closing function | |
| CN112483672B (en) | High-performance gate valve | |
| CN203823147U (en) | Ascending and descending flow interception flexible flap door | |
| CN112032324A (en) | Metal butterfly valve | |
| CN205260244U (en) | Small -size acidizing fracturing plunger pump | |
| CN214367781U (en) | Composite sealing oxygen stop valve | |
| CN210484681U (en) | Electric three-way stop valve | |
| CN209977263U (en) | Straight-flow stop valve | |
| CN203286015U (en) | Oblique type valve | |
| CN208816715U (en) | A kind of new antibiotic shut-off valve | |
| CN111022679A (en) | Knife gate valve with combined type middle cavity sealing ring | |
| CN213744999U (en) | Corrosion-resistant disc valve | |
| CN212004418U (en) | Lifting check valve | |
| CN214197339U (en) | Anti-blocking knife gate valve | |
| CN214368142U (en) | Special stop valve for oxygen | |
| CN2871991Y (en) | Diaphragm-balanced floating-ball valve | |
| CN215831175U (en) | Stop valve with high sealing performance | |
| CN216692207U (en) | Online maintenance power station gate valve | |
| CN218913802U (en) | Flow regulating gate valve | |
| CN211259696U (en) | Knife gate valve with combined type middle cavity sealing ring | |
| CN218118655U (en) | Knife-shaped slurry adjusting valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |