CN212564462U - Gate valve - Google Patents
Gate valve Download PDFInfo
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- CN212564462U CN212564462U CN202021036687.1U CN202021036687U CN212564462U CN 212564462 U CN212564462 U CN 212564462U CN 202021036687 U CN202021036687 U CN 202021036687U CN 212564462 U CN212564462 U CN 212564462U
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- sealing
- gate
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- valve rod
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Abstract
The utility model provides a gate valve with reasonable structural design and reduced gate plate abrasion, which comprises a valve body, a gate plate and a valve rod, wherein the upper end part of the valve body is provided with a first opening, the first opening is provided with a valve cover, the valve cover is arranged on the valve body, the valve cover and the valve body form a cavity, the valve cover is provided with a second opening, the upper end part of the valve rod is connected with an opening and closing device for driving the gate plate to move up and down, valve seats are respectively arranged between the two end surfaces of the gate plate and the valve body, a material conveying port is arranged on the valve seat, the valve seat is arranged on the valve body, an annular sealing channel for sealing the gate plate is formed between the two valve seats, an annular rubber block is arranged in the annular sealing channel, the upper end part of the annular rubber block is provided with an opening, the lower end part of, two sides of the V-shaped guide groove on the two stop blocks are respectively provided with a material cleaning channel, and the lower end part of the flashboard is provided with a guide inclined plane.
Description
Technical Field
The utility model relates to a valve class technical field, in particular to gate valve.
Background
The mud gate valve is mainly used for a pipeline for conveying high-pressure mud as a valve for cutting off and conducting the pipeline. Because the performance is reliable, opens and close moment advantage such as little, so use comparatively generally. A conventional steel core mud gate valve is sealed by a metal gate plate and a metal valve seat, but small solid particles in mud easily enter a sealing surface between the valve seat and the gate plate, so that the sealing surface and the gate plate of the gate valve are abraded, the sealing effect of the gate valve is influenced for a long time, and the mud conveying operation is influenced.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a structural design is reasonable, alleviates the mud gate valve of flashboard wearing and tearing.
In order to solve the technical problem, the utility model adopts the technical proposal that the gate valve comprises a valve body, a gate plate and a valve rod, wherein the valve body is provided with a material conveying channel, the gate plate is vertical to the material conveying channel and is arranged in the valve body, the lower end part of the valve rod is connected with the gate plate, the upper end part of the valve body is provided with a first opening for the gate plate and the valve rod to pass through, a valve cover is arranged on the first opening, the valve cover is arranged on the valve body, a first sealing device is arranged between the valve cover and the valve body, the valve cover and the valve body form a cavity for the gate plate to ascend, a second opening for the valve rod to penetrate out is arranged on the valve cover, a second sealing device is arranged between the valve cover and the valve rod, the upper end part of the valve rod is connected with an opening and closing device for driving the gate plate, the valve seat is provided with a material conveying port, the valve seat is arranged on the valve body, an annular sealing channel for sealing the flashboard is formed between the two valve seats, an annular rubber block for buffering the flashboard is arranged in the annular sealing channel, a through hole for the flashboard to penetrate through is formed in the upper end part of the annular rubber block, the lower end parts of the two valve seats close to one side of the flashboard are respectively provided with a stop block, a sealing groove for inserting the lower end part of the flashboard is formed between the two stop blocks, the sealing groove is communicated with the annular sealing channel, a V-shaped guide groove is arranged on the upper surface of the annular rubber cushion block positioned below the sealing groove, material cleaning channels are respectively arranged on the two baffle blocks positioned at the two sides of the V-shaped guide groove, the lower end of the flashboard is provided with a guide inclined plane matched with the V-shaped guide groove, and a third sealing device is arranged between the valve seat and the valve body.
The further improvement is that: the opening and closing device including set up in fixing base on the valve gap, the rotatable sleeve that rotates that is provided with on the fixing base, rotate the sleeve with be provided with fourth sealing device between the fixing base, it supplies to have seted up in the rotation sleeve the screw thread passageway that the valve rod passed, be provided with on the valve rod with screw thread passageway matched with external screw thread, the cover is equipped with and is used for the drive on the rotation sleeve rotate sleeve pivoted driving piece.
The further improvement is that: a valve rod protective shell is arranged above the rotating sleeve, the lower end of the valve rod protective shell is arranged on the rotating sleeve, and the inside of the valve rod protective shell is communicated with the threaded passage.
The further improvement is that: the driving piece is a hand wheel, and the hand wheel is fixedly sleeved on the rotating sleeve.
The further improvement is that: the fixing base is provided with a rotating channel, the lower end of the rotating sleeve is rotatably arranged on the fixing base, a first limiting boss is arranged on the inner wall of the upper end of the rotating channel, and a second limiting boss matched with the first limiting boss is arranged at the lower end of the rotating sleeve.
The further improvement is that: the fourth sealing device comprises two fourth sealing rings, the inner wall of the rotating channel is located above and below the second limiting boss, fourth mounting grooves for mounting the fourth sealing rings are formed in the fourth mounting grooves respectively, and the fourth sealing rings are arranged in the fourth mounting grooves.
The further improvement is that: the first sealing device is a first sealing ring, a first mounting groove for mounting the first sealing ring is formed in the valve cover, and the first sealing ring is arranged in the first mounting groove.
The further improvement is that: the second sealing device is a second sealing ring, a second mounting groove for mounting the second sealing ring is formed in the valve cover, and the second sealing ring is arranged in the second mounting groove.
The further improvement is that: the third sealing device is a third sealing ring, a third mounting groove for mounting the third sealing ring is formed in the valve seat, and the third sealing ring is arranged in the third mounting groove.
By adopting the technical scheme, the beneficial effects of the utility model are that: use the utility model has the advantages of it is following:
1. the utility model discloses the dog that sets up can avoid the flashboard will seal the face after getting into the sealed face of tip under the disk seat subsidiary mud granule extrusion stop in closed passage with clearance passageway, causes wearing and tearing to disk seat and flashboard, also can further avoid the mud granule to stop restriction flashboard downstream, influence the leakproofness of flashboard in the annular seal passageway, strengthens the leakproofness of flashboard.
2. The utility model provides a V-arrangement guide slot that sets up on the annular rubber piece and the direction inclined plane that sets up on the flashboard are convenient for make the mud in the annular seal passageway enter into the clearance passageway on the dog along V-arrangement guide slot and direction inclined plane in, the discharge of the mud of being convenient for.
3. The utility model discloses also be the state of mutual sealing between the dog that well set up and the flashboard, can further guarantee the tip under the disk seat and the flashboard between the tip sealed effect.
Drawings
Fig. 1 is a front view of a gate valve according to an embodiment of the present invention.
Fig. 2 is a schematic view of an internal structure of a gate valve according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a valve seat in a gate valve according to an embodiment of the present invention.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 3, disclosed in an embodiment of the present invention is a gate valve, including a valve body 10, a gate plate 11, and a valve rod 12, wherein the valve body 10 is provided with a material conveying passage 13, the gate plate is perpendicular to the material conveying passage 13 and disposed in the valve body 10, a lower end of the valve rod 12 is connected to the gate plate 11, an upper end of the valve body 10 is provided with a first opening 14 for the gate plate 11 and the valve rod 12 to pass through, the first opening 14 is provided with a valve cover 15, the valve cover 15 is fastened and mounted on the valve body 10 by a first fastening bolt 9, a first sealing device is disposed between the valve cover 15 and the valve body 10, the first sealing device is a first sealing ring 16, the valve cover 15 is provided with a first mounting groove for mounting the first sealing ring 16, the first sealing ring 16 is disposed in the first mounting groove, an outer ring wall of the first sealing ring 16 is clamped in the first mounting groove, the inner ring wall is extruded and attached with the valve body 10, the inner wall of the valve cover 15 and the valve body 10 form a cavity 18 for the flashboard 11 to rise, a second opening 19 for the valve rod 12 to penetrate out is formed in the valve cover 15, a second sealing device is arranged between the valve cover 15 and the valve rod 12, the second sealing device is a second sealing ring 20, a second mounting groove for mounting the second sealing ring 20 is formed in the valve cover 15, the second sealing ring 20 is arranged in the second mounting groove, the outer ring wall of the second sealing ring 20 is clamped in the second mounting groove, the inner ring wall is extruded and attached with the valve rod 12, the upper end of the valve rod 12 is connected with an opening and closing device for driving the flashboard 11 to move up and down, valve seats 22 are respectively arranged between the two end faces of the flashboard 11 and the valve body 10, a material conveying port 23 is formed in the valve seats 22, and the valve seats 22, an annular sealing channel 24 for sealing the gate plate is formed between the two valve seats 22, an annular rubber block 25 for buffering the gate plate is arranged in the annular sealing channel 24, the upper end of the annular rubber block 25 is provided with a through hole 26 for the gate plate to penetrate, the lower end parts of the two valve seats 22 close to one side of the gate plate are respectively and integrally provided with a stop block 27, a sealing groove 28 for inserting the lower end part of the gate plate is formed between the two stop blocks 27, the sealing groove 28 is communicated with the annular sealing channel 24, the upper surface of the annular rubber block positioned below the sealing groove 28 is provided with a V-shaped guide groove 29, the two stop blocks 27 are respectively provided with a material cleaning channel 30 positioned at two sides of the V-shaped guide groove 29, the lower end part of the gate plate is provided with a guide inclined plane 31 matched with the V-shaped guide groove 29, the third sealing device is a third sealing ring 32, a third mounting groove for mounting the third sealing ring 32 is formed in the valve seat 22, the third sealing ring 32 is arranged in the third mounting groove, the inner ring wall of the third sealing ring 32 is clamped in the third mounting groove, and the outer ring wall is extruded and attached to the valve body 10.
The opening and closing device comprises a fixed seat 34 arranged on the valve cover 15, the fixed seat 34 is fixedly arranged on the valve cover 15 through a second fastening bolt 8, a rotating sleeve 35 is rotatably arranged on the fixed seat 34, a rotating channel 36 is arranged on the fixed seat, the lower end part of the rotating sleeve 35 is rotatably arranged on the fixed seat 34, a first limiting boss 37 is arranged on the inner wall of the upper end part of the rotating channel 36, a second limiting boss 38 matched with the first limiting boss 37 is arranged at the lower end part of the rotating sleeve, a fourth sealing device is arranged between the rotating sleeve 35 and the fixed seat 34, the fourth sealing device comprises two fourth sealing rings 39, fourth mounting grooves for mounting the fourth sealing rings 39 are respectively arranged on the inner wall of the rotating channel 36 above and below the second limiting boss 38, the fourth sealing ring 39 is arranged in the fourth mounting groove, the outer ring wall of the fourth sealing ring 39 is clamped in the fourth mounting groove, the inner ring wall of the fourth sealing ring 39 is attached to the valve rod 12 in an extruding manner, a thread passage 41 for the valve rod 12 to pass through is formed in the rotating sleeve 35, an external thread 42 matched with the thread passage 41 is arranged on the valve rod 12, a valve rod protecting shell 43 is arranged above the rotating sleeve 35, the lower end of the valve rod protecting shell 43 is arranged on the rotating sleeve 35 through threaded connection, an external thread is arranged at the upper end of the rotating sleeve 35, an internal thread matched with the external thread is arranged on the inner wall of the valve rod protecting shell 43, the inside of the valve rod protecting shell 43 is communicated with the thread passage 41, and a driving piece for driving the rotating sleeve 35 to rotate is sleeved on the rotating sleeve 35, the driving piece is a hand wheel 44, and the hand wheel 44 is fixedly sleeved on the rotating sleeve 35.
When the valve is opened, the hand wheel 44 is rotated clockwise, the hand wheel 44 drives the rotating sleeve 35 to rotate positively, the valve rod 12 is driven to move upwards, the upper end of the valve rod 12 can enter the valve rod protective shell 43, meanwhile, the valve rod 12 drives the flashboard 11 to move upwards to pass through the first opening 14 on the valve body 10 and enter the cavity 18 between the valve body 10 and the valve cover 15, slurry attached to the flashboard 11 in the ascending process can be scraped completely under the scraping of the upper end parts of the sealing surfaces of the valve seat 22 and the flashboard 11, the slurry inside the material conveying channel 13 can be prevented from entering the cavity 18 under the action of the annular rubber block 25, and the hand wheel 44 can be stopped to rotate after the flashboard 11 is separated from the material conveying channel 13 in the valve body 10.
When the valve is closed, the hand wheel 44 is rotated anticlockwise, the hand wheel 44 drives the rotating sleeve 35 to rotate reversely, the upper end of the valve rod 12 is driven to be separated from the valve rod protective shell 43 to move downwards, meanwhile, the valve rod 12 drives the gate plate 11 to move downwards, the gate plate 11 penetrates through the first opening 14 on the valve body 10 and the through hole 26 in the upper end of the annular rubber block 25, then is inserted between the two valve seats 22, the side edge of the gate plate 11 is inserted into the annular sealing channel 24, along with the further downward movement of the gate plate 11, the lower end of the gate plate 11 enters the sealing groove 28 between the two stop blocks 27, the inner wall of the sealing groove 28 is attached to the two end faces of the gate plate 11, the gate plate 11 enters the sealing groove 28, then slurry on the wall of the sealing groove 28 is scraped downwards, the slurry is pushed downwards into the V-shaped guide groove 29 of the annular rubber block 25, after the lower end of the gate plate 11 is extruded into the V-shaped guide groove 29, the slurry in the V- And slurry is sent and discharged from the annular sealing channel 24, so that the slurry is prevented from accumulating in the annular sealing channel 24 to wear the flashboard 11.
Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.
Claims (9)
1. A gate valve comprises a valve body, a gate plate and a valve rod, wherein a material conveying channel is formed in the valve body, the gate plate is arranged in the valve body and is perpendicular to the material conveying channel, the lower end of the valve rod is connected with the gate plate, a first opening through which the gate plate and the valve rod can penetrate is formed in the upper end of the valve body, a valve cover is arranged on the first opening, the valve cover is arranged on the valve body, a first sealing device is arranged between the valve cover and the valve body, a cavity for the gate plate to ascend is formed by the valve cover and the valve body, a second opening through which the valve rod penetrates out is formed in the valve cover, a second sealing device is arranged between the valve cover and the valve rod, an opening and closing device for driving the gate plate to move up and down is connected to the upper end of the valve rod, valve seats are respectively arranged between the two end faces, two form the annular seal passageway that is used for sealed flashboard between the disk seat, be provided with the annular rubber piece that is used for buffering the flashboard in the annular seal passageway, the confession has been seted up to annular rubber piece upper end the opening that the flashboard penetrated, its characterized in that: two the disk seat is close to the lower tip of flashboard one side and is provided with the dog respectively, two form between the dog and supply the lower tip male seal groove of flashboard, the seal groove with annular sealed passageway is linked together, is located V-arrangement guide slot has been seted up to the upper surface of annular rubber cushion of seal groove below, two be located on the dog clear material passageway has been seted up respectively to V-arrangement guide slot both sides, the lower tip of flashboard seted up with V-arrangement guide slot matched with direction inclined plane, be provided with third sealing device between disk seat and the valve body.
2. A gate valve according to claim 1, characterised in that: the opening and closing device including set up in fixing base on the valve gap, the rotatable sleeve that rotates that is provided with on the fixing base, rotate the sleeve with be provided with fourth sealing device between the fixing base, it supplies to have seted up in the rotation sleeve the screw thread passageway that the valve rod passed, be provided with on the valve rod with screw thread passageway matched with external screw thread, the cover is equipped with and is used for the drive on the rotation sleeve rotate sleeve pivoted driving piece.
3. A gate valve according to claim 2, characterised in that: a valve rod protective shell is arranged above the rotating sleeve, the lower end of the valve rod protective shell is arranged on the rotating sleeve, and the inside of the valve rod protective shell is communicated with the threaded passage.
4. A gate valve according to claim 2, characterised in that: the driving piece is a hand wheel, and the hand wheel is fixedly sleeved on the rotating sleeve.
5. A gate valve according to claim 2, characterised in that: the fixing base is provided with a rotating channel, the lower end of the rotating sleeve is rotatably arranged on the fixing base, a first limiting boss is arranged on the inner wall of the upper end of the rotating channel, and a second limiting boss matched with the first limiting boss is arranged at the lower end of the rotating sleeve.
6. A gate valve according to claim 5, characterised in that: the fourth sealing device comprises two fourth sealing rings, the inner wall of the rotating channel is located above and below the second limiting boss, fourth mounting grooves for mounting the fourth sealing rings are formed in the fourth mounting grooves respectively, and the fourth sealing rings are arranged in the fourth mounting grooves.
7. A gate valve according to claim 1, characterised in that: the first sealing device is a first sealing ring, a first mounting groove for mounting the first sealing ring is formed in the valve cover, and the first sealing ring is arranged in the first mounting groove.
8. A gate valve according to claim 1, characterised in that: the second sealing device is a second sealing ring, a second mounting groove for mounting the second sealing ring is formed in the valve cover, and the second sealing ring is arranged in the second mounting groove.
9. A gate valve according to claim 1, characterised in that: the third sealing device is a third sealing ring, a third mounting groove for mounting the third sealing ring is formed in the valve seat, and the third sealing ring is arranged in the third mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021036687.1U CN212564462U (en) | 2020-06-08 | 2020-06-08 | Gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021036687.1U CN212564462U (en) | 2020-06-08 | 2020-06-08 | Gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212564462U true CN212564462U (en) | 2021-02-19 |
Family
ID=74628518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021036687.1U Active CN212564462U (en) | 2020-06-08 | 2020-06-08 | Gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212564462U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062994A (en) * | 2021-03-20 | 2021-07-02 | 朱虹虹 | Gate valve |
| CN114719078A (en) * | 2022-04-19 | 2022-07-08 | 欧拉姆阀门科技有限公司 | Valve rod protection clutch |
-
2020
- 2020-06-08 CN CN202021036687.1U patent/CN212564462U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062994A (en) * | 2021-03-20 | 2021-07-02 | 朱虹虹 | Gate valve |
| CN113062994B (en) * | 2021-03-20 | 2022-05-17 | 天津市中核科技实业有限公司 | Gate valve |
| CN114719078A (en) * | 2022-04-19 | 2022-07-08 | 欧拉姆阀门科技有限公司 | Valve rod protection clutch |
| CN114719078B (en) * | 2022-04-19 | 2023-11-28 | 欧拉姆阀门科技有限公司 | Valve rod protection clutch device |
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