CN109812592B - High-performance steel gate valve - Google Patents
High-performance steel gate valve Download PDFInfo
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- CN109812592B CN109812592B CN201910174880.7A CN201910174880A CN109812592B CN 109812592 B CN109812592 B CN 109812592B CN 201910174880 A CN201910174880 A CN 201910174880A CN 109812592 B CN109812592 B CN 109812592B
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Abstract
The utility model provides a steel gate valve of high performance, the lower part of valve body is equipped with the flashboard groove, valve body upper portion is equipped with the entering groove, the both sides wall in flashboard groove all is equipped with the mounting groove, the mounting groove internal rotation is connected with rotation portion, rotation portion is fixed with the sealing ring, sealing ring upper portion is equipped with the transmission portion that stretches into the entering groove, be equipped with the flashboard that is used for sealing the intermediate hole of sealing ring between the two sealing rings, the lower extreme of fixed block is equipped with the sealing plug, the sealing plug is located the outside of transmission portion, the sealing plug is used for sealing up between transmission portion and the disk seat and the space between fixed block and the disk seat, when the flashboard is located the lower part, the lower. The abrasion of the flashboard and the sealing ring is small when the flashboard and the sealing ring are opened and closed, the sealing performance is improved, and the service life is prolonged; can realize dismantling, can change the sealing ring after the sealing ring wearing and tearing for this gate valve can maintain used repeatedly.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a high-performance steel gate valve.
Background
The gate valve is an opening and closing member gate plate, the movement direction of the gate plate is vertical to the fluid direction, the gate plate can only be fully opened and fully closed, the gate plate is not suitable for different gate parameters, most gate valves are forcedly sealed, namely, when the valve is closed, the gate plate is forcedly pressed to a valve seat by external force so as to ensure the sealing performance of a sealing surface. The gate plate of the gate valve moves linearly along with the valve rod, and is called a lifting rod gate valve and a rising rod gate valve. Some gate valve stem nuts are arranged on the gate plate, and the gate plate is lifted by driving a valve stem to rotate through the rotation of a hand wheel, and the valve is called a rotary rod gate valve or a hidden rod gate valve. The gate valve generally has the gate plate and the valve seat which do relative movement, the gate plate and the valve seat require sealing and relative movement, the gate plate and the valve seat can be abraded mutually for a long time, the sealing performance of the gate valve is affected, and particularly the service life of the gate valve which needs to be opened and closed frequently is relatively short.
Disclosure of Invention
In view of the above situation, the present invention aims to provide a high performance steel gate valve, which improves the sealing performance between the gate plate and the valve seat and has a long service life.
The technical scheme includes that the high-performance steel gate valve comprises a valve body with a left channel and a right channel, a valve seat is embedded in the valve body, a valve cover is mounted on the upper portion of the valve body, a gate plate groove is formed in the lower portion of the valve body, an inlet groove is formed in the upper portion of the valve body, mounting grooves are formed in two side walls of the gate plate groove, a rotating portion is connected in the mounting grooves in a rotating mode, sealing rings are fixed on the rotating portion, a transmission portion extending into the inlet groove is arranged on the upper portion of each sealing ring, a gate plate used for sealing a middle hole of each sealing ring is arranged between the two sealing rings, a fixing block is arranged on the upper portion of each gate plate, a valve rod is connected in a rotating mode and extends out of the valve cover upwards and is sealed relative to the valve cover, a support frame is fixed on the upper portion of the, the sealing plug is used for sealing the gaps between the transmission part and the valve seat and between the fixing block and the valve seat, and when the flashboard is positioned at the lowest part, the lower end of the flashboard extends out of the flashboard groove to be sealed with the flashboard groove, and the two sealing rings are in sealing contact with the flashboard.
Preferably, the side of the sealing ring close to the gate is provided with a sealing layer.
Preferably, the inner wall of the inlet groove is provided with an auxiliary groove for facilitating the entry of the sealing plug into the inlet groove.
Preferably, the rotating part and the sealing ring are not in the same plane, the rotating part inclines downwards in the direction away from the flashboard, the transmission part and the sealing ring are not in the same plane, and the transmission part inclines upwards in the direction away from the flashboard.
Preferably, both ends of the valve body are provided with flange structures.
The invention has the beneficial effects that: because the stroke of the sealing ring and the flashboard generating larger friction force is shorter, the flashboard and the sealing ring are less worn when opened and closed, the sealing performance is improved, and the service life is prolonged; the valve body is assembled with the valve seat in an embedded mode, the rotating portion is connected with the valve body in a rotating mode, disassembly can be achieved, the sealing ring can be replaced after the sealing ring is abraded, the gate valve can be repeatedly used in a maintenance mode, the service life is prolonged, and the use cost is reduced.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of a seal ring of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a high-performance steel gate valve comprises a valve body 1 with a left channel and a right channel, a valve seat 2 is embedded in the valve body 1, and a valve cover 3 is installed on the upper portion of the valve body 1, and is characterized in that a gate plate groove 4 is arranged on the lower portion of the valve body 1, an inlet groove is arranged on the upper portion of the valve body 1, mounting grooves 5 are arranged on two side walls of the gate plate groove 4, a rotating portion 6 is rotatably connected to the mounting grooves 5, a sealing ring 7 is fixed on the rotating portion 6, a transmission portion 8 extending into the inlet groove is arranged on the upper portion of the sealing ring 7, a gate plate 9 for sealing a middle hole of the sealing ring 7 is arranged between the two sealing rings 7, a fixing block 10 is arranged on the upper portion of the gate plate 9, a valve rod 11 is rotatably connected to the fixing block 10, the valve rod 11 extends upwards out of the, the nut 13 is fixed on the support frame 12, the thread portion is in threaded connection with the nut 13, the lower end of the fixing block 10 is provided with a sealing plug 14, the sealing plug 14 is located on the outer side of the transmission portion 8, the sealing plug 14 is used for sealing gaps between the transmission portion 8 and the valve seat 2 and between the fixing block 10 and the valve seat 2, when the flashboard 9 is located at the lowest portion, the lower end of the flashboard 9 extends out of the flashboard groove 4 to be sealed with the flashboard groove 4, and the two sealing rings 7 are in sealing contact with the flashboard 9.
And a sealing layer is arranged on one side of the sealing ring 7 close to the flashboard 9.
An auxiliary groove 15 which is convenient for the sealing plug 14 to be plugged into the inlet groove is arranged on the inner wall of the inlet groove.
The rotating portion 6 and the sealing ring 7 are not in the same plane, the rotating portion 6 inclines downwards in the direction away from the flashboard 9, the transmission portion 8 and the sealing ring 7 are not in the same plane, and the transmission portion 8 inclines upwards in the direction away from the flashboard 9.
And both ends of the valve body 1 are provided with flange structures 16.
According to the invention, the valve rod 11 is rotated, and the valve rod 11 can drive the flashboard 9 to move up and down due to the action of the threaded part of the valve rod 11 and the nut 13. In the process of closing the downward movement of the gate plate 9, because the sealing plug 14 does not enter into the entering groove, the sealing ring 7 can rotate, the gate plate 9 moves downward, the acting force is small when the sealing plug is not contacted with or contacted with the sealing ring 7, the gate plate 9 continues to move downward, the sealing plug 14 enters into the entering groove, the sealing plug 14 presses the transmission part 8, the sealing ring 7 rotates towards the direction of the gate plate 9, the gate plate 9 enters into the gate plate groove 4 to be sealed with the gate plate 9, the sealing plug 14 extrudes the transmission part 8 to enable the sealing ring 7 to be sealed with the gate plate 9, meanwhile, the sealing plug 14 also seals the gap between the sealing ring 7 and the gate plate 9 and the gap between the sealing valve body 1.
The invention has the beneficial effects that: because the stroke of the sealing ring and the flashboard generating larger friction force is shorter, the flashboard and the sealing ring are less worn when opened and closed, the sealing performance is improved, and the service life is prolonged; the valve body is assembled with the valve seat in an embedded mode, the rotating portion is connected with the valve body in a rotating mode, disassembly can be achieved, the sealing ring can be replaced after the sealing ring is abraded, the gate valve can be repeatedly used in a maintenance mode, the service life is prolonged, and the use cost is reduced.
The above-mentioned embodiments do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention by those skilled in the art should be included in the protection scope defined by the claims of the present invention without departing from the design concept of the present invention.
Claims (5)
1. The utility model provides a high performance steel gate valve, has disk seat (2) including valve body (1) of passageway about having, the inside embedding of valve body (1), and valve gap (3) are installed on valve body (1) upper portion, its characterized in that, the lower part of valve body (1) is equipped with flashboard groove (4), and valve body (1) upper portion is equipped with into groove, and the both sides wall of flashboard groove (4) all is equipped with mounting groove (5), mounting groove (5) internal rotation is connected with rotation portion (6), and rotation portion (6) are fixed with sealing ring (7), sealing ring (7) upper portion is equipped with the transmission portion (8) that stretches into the groove, two be equipped with flashboard (9) that are used for sealing the centre bore of sealing ring (7) between sealing ring (7), and the upper portion of flashboard (9) is equipped with fixed block (10), and fixed block (10) rotate and be connected with valve rod (11), and valve rod (11, valve gap (3) upper portion is fixed with support frame (12), valve rod (11) stretch out valve gap (3) end and are equipped with screw thread portion, be fixed with nut (13) on support frame (12), screw thread portion and nut (13) threaded connection, the lower extreme of fixed block (10) is equipped with sealing plug (14), sealing plug (14) are located the outside of transmission portion (8), sealing plug (14) are used for sealing up between transmission portion (8) and disk seat (2) and the space between fixed block (10) and disk seat (2), when flashboard (9) are located the lower part, the lower extreme of flashboard (9) stretches out flashboard groove (4) and is sealed and two sealing rings (7) all with flashboard (9) sealing contact.
2. A high performance steel gate valve according to claim 1, characterized in that the sealing ring (7) is provided with a sealing layer on the side close to the gate plate (9).
3. A high performance steel gate valve according to claim 1, characterized in that the inner wall of the inlet groove is provided with an auxiliary groove (15) for facilitating the insertion of the sealing plug (14) into the inlet groove.
4. A high performance steel gate valve according to claim 1 or 3, characterized in that the rotating part (6) is not in the same plane as the sealing ring (7), the rotating part (6) is inclined downwards away from the gate plate (9), the transmission part (8) is not in the same plane as the sealing ring (7), and the transmission part (8) is inclined upwards away from the gate plate (9).
5. A high-performance steel gate valve according to claim 1, characterized in that both ends of the valve body (1) are provided with flange structures (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174880.7A CN109812592B (en) | 2019-03-08 | 2019-03-08 | High-performance steel gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910174880.7A CN109812592B (en) | 2019-03-08 | 2019-03-08 | High-performance steel gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109812592A CN109812592A (en) | 2019-05-28 |
| CN109812592B true CN109812592B (en) | 2020-06-26 |
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ID=66608578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910174880.7A Active CN109812592B (en) | 2019-03-08 | 2019-03-08 | High-performance steel gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109812592B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201306499Y (en) * | 2008-12-10 | 2009-09-09 | 吉林凯仕达阀门有限公司 | A steel pipe welding valve |
| JP2011052816A (en) * | 2009-09-04 | 2011-03-17 | Mitsubishi Heavy Ind Ltd | Method and device for evading resonance in valve attaching pipe, and valve device |
| CN201705286U (en) * | 2010-04-26 | 2011-01-12 | 长江大学 | Double-stem gate valve of thermal production well head |
| CN202561087U (en) * | 2012-05-21 | 2012-11-28 | 山东益都阀门集团股份有限公司 | High-intensity gate valve |
| JP2014111971A (en) * | 2012-12-05 | 2014-06-19 | Kubota Corp | Gate valve |
| CN205401782U (en) * | 2016-03-25 | 2016-07-27 | 福建科达消防阀门制造有限公司 | Ditch slot type elasticity rising stem (RS. ) seat seals gate valve |
| CN208268448U (en) * | 2018-05-24 | 2018-12-21 | 湖州锁控阀门有限公司 | A kind of flat gate valve of cavitation prevention |
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2019
- 2019-03-08 CN CN201910174880.7A patent/CN109812592B/en active Active
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| Publication number | Publication date |
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| CN109812592A (en) | 2019-05-28 |
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