CN219317659U - Leakage-proof abrasion-resistant gate valve - Google Patents
Leakage-proof abrasion-resistant gate valve Download PDFInfo
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- CN219317659U CN219317659U CN202320324632.8U CN202320324632U CN219317659U CN 219317659 U CN219317659 U CN 219317659U CN 202320324632 U CN202320324632 U CN 202320324632U CN 219317659 U CN219317659 U CN 219317659U
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to the technical field of gate valves and discloses a leakage-proof wear-resistant gate valve, which comprises a front shell and a rear shell, wherein a gate knife is embedded and arranged between the front shell and the rear shell at the position close to the upper side, upper ejector rods are fixedly arranged at the two sides of the lower end of the gate knife, a slide way is arranged between the front shell and the rear shell at the position close to the two sides, and a plurality of upper ejector rods are respectively arranged at the position close to the upper end in the slide way in a sliding way. According to the utility model, the falling process of the sluice knife in the closing process of the sluice valve is reduced, the abrasion generated in the using process of the sluice knife is reduced, and the medium in the lower side gap between the front shell and the rear shell is discharged in the closing process of the sluice valve, so that the medium in the sluice valve is prevented from leaking downwards from the connection position of the lower side gap between the front shell and the rear shell due to the fact that the medium in the lower side gap between the front shell and the rear shell is extruded when the sluice knife is closed downwards.
Description
Technical Field
The utility model relates to the technical field of gate valves, in particular to a leakage-proof wear-resistant gate valve.
Background
The gate valve is a sealing component for realizing pipeline separation through a gate plate of an opening and closing piece, the moving direction of the gate plate is vertical to the fluid direction, the gate valve can only be fully opened and fully closed and can not be regulated and throttled, the gate valve is commonly used in various pipeline systems and used for controlling the flow blocking of an access pipeline, is a common industrial component, easily generates the problems of overlarge abrasion and loosening of the component after being used for a period of time, and easily causes medium leakage at a connecting position.
The prior patent (publication number: CN 213711928U) discloses a gate valve, which comprises a valve body, a gate plate, valve seats and a wear-resistant sleeve, wherein medium flow passages are arranged in the valve body, two valve seats are arranged in the valve body at intervals in the axial direction of the medium flow passages, and are provided with overflow holes extending along the axial direction of the medium flow passages, and the gate plate is arranged on the valve body and can move between the two valve seats to block and leave the overflow holes; the wear-resistant sleeve is arranged in the medium flow channel, downstream of the flashboard and close to the flashboard, and is fixedly arranged on the valve body or the valve seat, and the inner hole and the overflow hole are axially applied to medium flow. According to the gate valve disclosed by the utility model, when the pressure difference between the inside of the valve body and the two sides of the gate plate is large, a medium passes through the gate plate and then impacts the valve seat and the wear-resistant sleeve, so that the medium with high flow velocity is prevented from directly impacting the valve body, the wear-resistant sleeve and the valve seat have a certain protection effect on the valve body, the valve body is not easy to damage, the service life of the valve body is prolonged, the maintenance cost is reduced, and the economical efficiency of the gate valve is better. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. the flashboard for blocking the medium flow needs to move downwards until the lower end passes through the opening position of the sluice valve, the opening position of the sluice valve is completely shielded to close the sluice valve, the travelling path of the flashboard is long, and the abrasion is large during movement; 2. when the inner gap of the gate valve moves downwards, the medium remained in the gap is extruded downwards to the lower part of the gap, so that the medium leakage phenomenon is easily caused at the connecting position of the movable gap of the gate valve at the lower side of the gate valve;
accordingly, one skilled in the art would be able to provide a leak-proof and wear-resistant gate valve that addresses the problems set forth in the background above.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a leakage-proof abrasion-proof gate valve, which reduces the descending process of a gate knife during the closing process of the gate valve, reduces abrasion generated during the use process of the gate knife, discharges medium in a lower side gap between a front shell and a rear shell during the closing process of the gate valve, and avoids the medium in the lower side gap between the front shell and the rear shell from being extruded when the gate knife is closed downwards, so that the medium in the gate valve leaks downwards from a lower side gap connecting position between the front shell and the rear shell.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the leakage-proof wear-resistant gate valve comprises a front shell and a rear shell, wherein a gate knife is embedded between the front shell and the rear shell at the position close to the upper side, upper ejector rods are fixedly arranged at the two side positions of the lower end of the gate knife, a slide way is arranged between the front shell and the rear shell at the position close to the two side, a plurality of upper ejector rods are respectively and slidably arranged at the position close to the upper end inside the slide way, curved ejector rods are hinged at the position close to the lower end at the two sides between the front shell and the rear shell, lower ejector rods are respectively and slidably arranged at the position close to the lower side inside the slide way, a gap top plate is movably arranged between the lower ejector rods, and the gap top plate is movably arranged at the upper side position opposite to one end of the curved ejector rods;
through the technical scheme, when the gate valve is closed, the gate blade is controlled to move downwards, so that the upper ejector rods on the two sides of the gate blade slide in the slideway, the lower ejector rods are pushed downwards to move, the lower ejector rods are pushed upwards to move a plurality of curved ejector rods to rotate, the gap top plate which is opposite to the upper side of one end of the curved ejector rods is pushed upwards until the gap top plate is attached to the lower side edge of the gate blade, the descending process of the gate blade in the gate valve closing process is reduced, the abrasion generated in the gate blade using process is reduced, and the ascending medium in the lower side gap between the front shell and the rear shell is discharged in the ascending gap top plate moving upwards, so that the medium in the lower side gap between the front shell and the rear shell is extruded when the gate blade is closed downwards, and the medium in the gate valve is prevented from leaking downwards from the lower side gap between the front shell and the rear shell.
Further, a top sealing cover is fixedly arranged between the front shell and the rear shell and is positioned at the upper side, the lower end of the knife switch penetrates through the top sealing cover to be communicated to the position, close to the upper side, of a gap between the front shell and the rear shell, and a bottom sealing cover is fixedly arranged between the front shell and the rear shell and is positioned at the lower side;
by the technical scheme, the front shell and the rear shell are connected into an integral structure by arranging the top sealing cover and the bottom sealing cover.
Further, upper sealing pieces are fixedly arranged between the front shell and the rear shell and close to the front side and the rear side of the lower end of the knife switch, and a plurality of upper rubber seals are embedded between the front shell and the rear shell and between the upper sealing pieces;
by the technical scheme, the sealing performance between the knife switch and the front shell and the rear shell is ensured.
Further, lower sealing pieces are fixedly arranged at the front side and the rear side of the lower end between the front shell and the rear shell, which are close to the gap top plate, and a plurality of lower rubber seals are embedded between the front shell and the rear shell and between the lower sealing pieces;
by the technical scheme, the sealing performance between the front shell and the rear shell after the knife switch is put down is guaranteed, and the sealing performance between the front shell and the rear shell and between the lower sealing piece is guaranteed.
Further, the upper ends of the front shell and the rear shell are fixedly provided with a power mechanism, and the upper ends of the blades are fixedly connected with the output end of the power mechanism;
through the technical scheme, the power mechanism can be externally connected with a motor to control the knife switch to move up and down and control the gate valve to be opened and closed.
Further, a plurality of bottom rubber seals are embedded and arranged between the front shell and the bottom sealing cover and between the rear shell and the bottom sealing cover;
by the technical scheme, the tightness between the front shell and the bottom sealing cover and the tightness between the rear shell and the bottom sealing cover are improved.
Further, a plurality of fixing lugs are respectively and fixedly arranged at the middle positions of the front side end face of the front shell and the rear side end face of the rear shell, and connecting lugs are respectively and fixedly arranged at the middle positions of the two sides of the front shell and the rear shell;
through above-mentioned technical scheme, through a plurality of fixed hangers, with in the gate valve is connected to the pipeline, through a plurality of connect the hangers, will anterior shell and rear portion shell are connected into overall structure.
Further, sealing rings are embedded and arranged between the front shell and the rear shell at positions close to the central opening;
through the technical scheme, the sealing performance of the gate valve during closing is improved, and the occurrence probability of leakage is reduced.
The utility model has the following beneficial effects:
1. according to the leakage-proof wear-resistant gate valve provided by the utility model, the gate blade is controlled to move downwards, so that the upper ejector rods on two sides of the gate blade slide in the slideway, the lower ejector rods are pushed downwards to move, the lower ejector rods are pushed to rotate, the gap top plates which are used for pushing the curved ejector rods to move upwards relative to the upper side of one end are pushed upwards until the gap top plates are attached to the lower side edges of the gate blade, the descending process of the gate blade in the closing process of the gate valve is reduced, and the wear generated in the using process of the gate blade is reduced.
2. According to the leakage-proof wear-resistant gate valve, the medium in the lower side gap between the front shell and the rear shell is discharged through upward movement of the gap top plate in the closing process of the gate valve, so that the medium in the lower side gap between the front shell and the rear shell is prevented from being extruded when the gate blade is closed downwards, and leakage of the medium in the gate valve is prevented from occurring downwards from the lower side gap connection position between the front shell and the rear shell.
Drawings
FIG. 1 is an isometric view of the present utility model;
FIG. 2 is a schematic front cross-sectional view of the present utility model;
FIG. 3 is a schematic side cross-sectional view of the present utility model;
FIG. 4 is an enlarged schematic view of the structure of the present utility model at A;
fig. 5 is an enlarged schematic view of the structure at B of the present utility model.
Legend description:
1. a knife switch; 2. a front housing; 3. a rear housing; 4. fixing the hanging lugs; 5. a bottom cover; 6. an upper ejector rod; 7. a seal ring; 8. a slideway; 9. connecting a hanging lug; 10. a lower ejector rod; 11. a curved ejector rod; 12. a gap top plate; 13. an upper rubber seal; 14. an upper seal; 15. a lower seal; 16. a lower rubber seal; 17. a bottom rubber seal; 18. a power mechanism; 19. a top cover.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-5, one embodiment provided by the present utility model is: the utility model provides a leak protection wear-resisting gate valve, including front portion shell 2 and rear portion shell 3, front portion shell 2 and rear portion shell 3 pass through a plurality of bolted connection and become overall structure, constitute the shell part of gate valve, keep somewhere between the two and be used for holding the space that knife 1 removed, be provided with knife 1 by the embedding of upper side position between front portion shell 2 and the rear portion shell 3, knife 1 lower extreme both sides position is fixed and is provided with upper ejector pin 6, slide 8 has all been seted up to the both sides position between front portion shell 2 and rear portion shell 3, a plurality of upper ejector pins 6 slide respectively in slide 8 inside and be close to the upper end position, a plurality of slide 8 are inside and are all articulated to be provided with curved ejector pin 11 near the lower extreme position, a plurality of slide 8 are inside and are all provided with lower ejector pin 10 near the lower side position, a plurality of lower ejector pins 10 are movable and are provided with clearance roof 12 between, clearance roof 12 activity is set up in a plurality of curved ejector pin 11 relative one end upper side position;
when the gate valve is closed, the gate knife 1 is controlled to move downwards, so that the upper ejector rods 6 on two sides of the gate knife 1 slide in the slideway 8, the lower ejector rods 10 are pushed downwards to move, the lower ejector rods 10 are pushed to rotate, the gap top plates 12 which are arranged at the upper side positions of one ends of the curved ejector rods 11 are pushed upwards until the gap top plates 12 are attached to the lower side edges of the gate knife 1, the descending process of the gate knife 1 in the gate valve closing process is reduced, the abrasion generated in the gate knife 1 in the use process is reduced, and the medium in the lower side gaps between the front shell 2 and the rear shell 3 is discharged in the ascending gap top plates 12 in the upward moving process, so that the medium in the lower side gaps between the front shell 2 and the rear shell 3 is prevented from being extruded when the gate knife 1 is closed downwards, and the medium in the gate valve is prevented from leaking downwards from the lower side gaps between the front shell 2 and the rear shell 3;
a top sealing cover 19 is fixedly arranged between the front shell 2 and the rear shell 3 at the upper side, the lower end of the knife switch 1 penetrates through the top sealing cover 19 to be communicated with a gap between the front shell 2 and the rear shell 3 at the upper side, a bottom sealing cover 5 is fixedly arranged between the front shell 2 and the rear shell 3 at the lower side, the front shell 2 and the rear shell 3 are connected into an integral structure through the top sealing cover 19 and the bottom sealing cover 5, an upper sealing piece 14 is fixedly arranged between the front shell 2 and the rear shell 3 at the front side and the rear side close to the lower end of the knife switch 1, a plurality of upper rubber 13 are embedded between the front shell 2 and the rear shell 3 and between the upper sealing piece 14, and the sealing degree between the knife switch 1 and the front shell 2 and the rear shell 3 is ensured;
the lower ends of the front shell 2 and the rear shell 3, which are close to the front side and the rear side of the gap top plate 12, are fixedly provided with lower sealing elements 15, a plurality of lower rubber seals 16 are embedded between the front shell 2 and the rear shell 3 and between the lower sealing elements 15, so that the sealing performance between the front shell 2 and the rear shell 3 and between the front shell 2 and the lower sealing elements 15 is ensured after the knife switch 1 is put down, a power mechanism 18 is fixedly arranged at the upper ends of the front shell 2 and the rear shell 3, the upper ends of the knife switch 1 are fixedly connected with the output ends of the power mechanism 18, the power mechanism 18 can be externally connected with a motor, the knife switch 1 is controlled to move up and down, and the gate valve is controlled to be opened and closed;
a plurality of bottom rubber seals 17 are embedded between the front shell 2 and the rear shell 3 and the bottom sealing cover 5, tightness between the front shell 2 and the rear shell 3 and the bottom sealing cover 5 is improved, a plurality of fixing lugs 4 are respectively and fixedly arranged at middle positions of the front side end face of the front shell 2 and the rear side end face of the rear shell 3, connecting lugs 9 are fixedly arranged at middle positions of two sides of the front shell 2 and the rear shell 3, a gate valve is connected into a pipeline through the plurality of fixing lugs 4, the front shell 2 and the rear shell 3 are connected into an integral structure through the plurality of connecting lugs 9, sealing rings 7 are embedded between the front shell 2 and the rear shell 3 and close to the central opening, sealing performance when the gate valve is closed is improved, and occurrence probability of leakage is reduced.
Examples
Referring to fig. 2, one embodiment provided by the present utility model: the gap for supplying the knife 1 to move up and down is arranged between the front shell 2 and the rear shell 3, when the gate valve is used, internal media are inevitably reserved in the gap, the knife 1 moves downwards until being closed, the flowing media in the gap are extruded by the knife 1, and the connecting position of the lower end of the gate valve is stressed for a long time, so that the connecting position of the gate valve is stressed unevenly, and the leakage phenomenon is easily generated between the front shell 2 and the rear shell 3 at the position close to the lower side.
Working principle: when the gate valve is closed, the gate knife 1 is controlled to move downwards, so that the upper ejector rods 6 on two sides of the gate knife 1 slide in the slideway 8, the lower ejector rods 10 are pushed downwards to move, the lower ejector rods 10 are pushed to rotate, the gap top plates 12 which are arranged at the upper side positions of one ends of the upper ejector rods 11 are pushed upwards until the gap top plates 12 are attached to the lower side edges of the gate knife 1, the descending process of the gate knife 1 in the gate valve closing process is reduced, the abrasion generated in the use process of the gate knife 1 is reduced, the medium in the lower side gaps between the front shell 2 and the rear shell 3 is discharged in the ascending process of the gap top plates 12, the medium in the lower side gaps between the front shell 2 and the rear shell 3 is prevented from being extruded when the gate knife 1 is closed downwards, the medium in the inner part of the gate valve leaks downwards from the lower side gaps between the front shell 2 and the rear shell 3, the gate valve 1 ascends until the inner part of the gate knife gate valve applies downward pressure to the gap top plates 12 through the medium, the upper ejector rods 6 ascend in the upper part 8, the medium in the upper part is arranged in the moving upwards direction, the upper ejector rods 6 are enabled to be automatically separated from the lower side gaps 10 in the lower side of the gate valve, and the upper ejector rods are automatically contacted with the lower ejector rods 10 in the lower side of the lower part of the upper ejector rods, and the upper ejector rods are automatically separated from the lower part of the upper ejector rods.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. A leak-proof wear-resistant gate valve comprising a front housing (2) and a rear housing (3), characterized in that: the utility model discloses a brake knife switch, including front portion shell (2) and rear portion shell (3), be provided with brake knife (1) by the embedding of upside position between front portion shell (2) and rear portion shell (3), brake knife (1) lower extreme both sides position is all fixedly provided with upper portion ejector pin (6), slide (8) have all been seted up to both sides position between front portion shell (2) and rear portion shell (3), a plurality of upper portion ejector pin (6) slide respectively and set up in slide (8) inside by upper end position, both sides are all articulated to be provided with curved ejector pin (11) by lower extreme position between front portion shell (2) and rear portion shell (3), a plurality of slide (8) are inside to be provided with lower ejector pin (10) by the equal slip of downside position, a plurality of activity is provided with clearance roof (12) between lower ejector pin (10), clearance roof (12) activity set up in a plurality of curved ejector pin (11) relative one end upside positions.
2. The leak-proof wear-resistant gate valve as set forth in claim 1, wherein: a top sealing cover (19) is fixedly arranged between the front casing (2) and the rear casing (3) at the upper side, the lower end of the knife switch (1) penetrates through the top sealing cover (19) to be communicated with a gap between the front casing (2) and the rear casing (3) at the upper side, and a bottom sealing cover (5) is fixedly arranged between the front casing (2) and the rear casing (3) at the lower side.
3. The leak-proof wear-resistant gate valve as set forth in claim 1, wherein: the front and rear side positions, which are close to the lower end of the knife switch (1), between the front shell (2) and the rear shell (3) are fixedly provided with upper sealing pieces (14), and a plurality of upper rubber seals (13) are embedded between the front shell (2) and the rear shell (3) and between the upper sealing pieces (14).
4. The leak-proof wear-resistant gate valve as set forth in claim 1, wherein: lower sealing pieces (15) are fixedly arranged at the positions, close to the front side and the rear side of the gap top plate (12), of the lower end between the front shell (2) and the rear shell (3), and a plurality of lower rubber seals (16) are embedded between the front shell (2) and the rear shell (3) and between the lower sealing pieces (15).
5. The leak-proof wear-resistant gate valve as set forth in claim 1, wherein: the upper ends of the front shell (2) and the rear shell (3) are fixedly provided with a power mechanism (18), and the upper end of the knife switch (1) is fixedly connected with the output end of the power mechanism (18).
6. The leak-proof wear-resistant gate valve as set forth in claim 2, wherein: a plurality of bottom rubber seals (17) are embedded between the front shell (2) and the rear shell (3) and the bottom sealing cover (5).
7. The leak-proof wear-resistant gate valve as set forth in claim 1, wherein: the front side end face of the front shell (2) and the middle position of the rear side end face of the rear shell (3) are respectively fixedly provided with a plurality of fixing lugs (4), and the middle positions of the two sides of the front shell (2) and the rear shell (3) are respectively fixedly provided with connecting lugs (9).
8. The leak-proof wear-resistant gate valve as set forth in claim 1, wherein: sealing rings (7) are embedded and arranged between the front shell (2) and the rear shell (3) at positions close to the central opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320324632.8U CN219317659U (en) | 2023-02-27 | 2023-02-27 | Leakage-proof abrasion-resistant gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320324632.8U CN219317659U (en) | 2023-02-27 | 2023-02-27 | Leakage-proof abrasion-resistant gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219317659U true CN219317659U (en) | 2023-07-07 |
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ID=87024009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320324632.8U Active CN219317659U (en) | 2023-02-27 | 2023-02-27 | Leakage-proof abrasion-resistant gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219317659U (en) |
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2023
- 2023-02-27 CN CN202320324632.8U patent/CN219317659U/en active Active
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