CN215522449U - Stainless steel end cap discharge valve - Google Patents
Stainless steel end cap discharge valve Download PDFInfo
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- CN215522449U CN215522449U CN202121387674.3U CN202121387674U CN215522449U CN 215522449 U CN215522449 U CN 215522449U CN 202121387674 U CN202121387674 U CN 202121387674U CN 215522449 U CN215522449 U CN 215522449U
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Abstract
The utility model discloses a stainless steel plug exhaust valve, which comprises a plug, a valve casing and a valve rod, wherein the plug and the valve casing are both made of stainless steel, the plug and the valve casing are connected by welding, a cavity is arranged in the plug, an air guide channel and a valve hole are arranged in the valve casing, the valve hole is positioned at the upper end of the air guide channel, the air guide channel is communicated with the cavity in the plug, and a step surface is formed between the valve hole and the air guide channel; the inner wall of the valve hole is provided with an internal thread, the valve rod is provided with an external thread matched with the internal thread, the valve rod is in threaded connection with the valve hole, the lower end of the valve rod is connected with a first sealing ring matched with the stepped surface, and the upper end of the valve rod extends out of the valve casing; the side of valve casing is provided with the blast pipe, is provided with the exhaust passage with the valve opening intercommunication in the blast pipe. According to the utility model, the plug and the valve shell are both made of stainless steel, the stainless steel has high strength and can bear larger pressure, the end face of the plug is not easy to burst, and the stainless steel is not easy to rust and has good corrosion resistance.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to a stainless steel plug exhaust valve.
Background
The plug exhaust valve is an important part installed on the water separator. The plug exhaust valve can plug the end part of a pipeline in the water distributor and has an exhaust function. Current end cap discharge valve includes end cap, valve casing, valve rod, and the end of pipeline in the water knockout drum is connected to the end cap, is provided with the cavity in the end cap, is provided with the valve opening in the valve casing, and valve rod threaded connection makes the axial displacement of valve rod along the valve opening through rotating the valve rod in the valve opening to realize opening of end cap discharge valve, and then realize exhausting function.
Among the current end cap discharge valve, end cap and valve casing are forged by the copper product is integrative usually and are formed, and the copper product material is softer, leads to the end cap can't bear great water pressure, and when the water pressure in the water knockout drum was high, the end cap terminal surface took place to burst very easily.
Disclosure of Invention
The utility model aims to solve the problems that in the existing exhaust valve for the plug, the plug and a valve shell are usually integrally forged by copper materials, the plug cannot bear large water pressure due to the fact that the copper materials are soft, and the end face of the plug is easy to crack when the water pressure in a water separator is high, and provides an exhaust valve for a stainless steel plug, which can effectively solve the problems.
The purpose of the utility model is realized by the following technical scheme: a stainless steel plug exhaust valve comprises a plug, a valve casing and a valve rod, wherein the plug and the valve casing are made of stainless steel, the plug and the valve casing are connected through welding, a cavity is formed in the plug, an air guide channel and a valve hole are formed in the valve casing, the valve hole is located at the upper end of the air guide channel, the air guide channel is communicated with the cavity in the plug, and a stepped surface is formed between the valve hole and the air guide channel; the inner wall of the valve hole is provided with an internal thread, the valve rod is provided with an external thread matched with the internal thread, the valve rod is in threaded connection with the valve hole, the lower end of the valve rod is connected with a first sealing ring matched with the stepped surface, and the upper end of the valve rod extends out of the valve casing; the side of valve casing is provided with the blast pipe, is provided with the exhaust passage with the valve opening intercommunication in the blast pipe.
In the utility model, the plug is connected with the end part of the water separator pipeline. When the plug exhaust valve is in a closed state, the first sealing ring is tightly pressed on the stepped surface, and the first sealing ring plugs the gas guide channel, so that gas in the water separator cannot be discharged. When the air needs to be exhausted, the valve rod is rotated towards one direction, the valve rod moves along the direction far away from the plug while rotating, the first sealing ring is far away from the step surface, the air guide channel is opened at the moment, and the air in the water separator is exhausted through the exhaust channel; after the exhaust is finished, the valve rod is rotated reversely, so that the first sealing ring is pressed on the stepped surface again, and the plug exhaust valve is closed. According to the utility model, the plug and the valve shell are both made of stainless steel, the stainless steel has high strength and can bear larger pressure, the end face of the plug is not easy to burst, and the stainless steel is not easy to rust and has good corrosion resistance.
Preferably, a second sealing ring is arranged on the side surface of the valve rod and is in sealing fit with the inner wall of the valve hole.
Preferably, the first seal ring is made of perfluororubber.
Preferably, the exhaust pipe is integrally formed with the valve housing.
Preferably, the upper end of the inner wall of the valve hole is provided with an annular groove, and an inflatable ring is arranged in the annular groove; a cylinder body is arranged on the outer side of the valve shell, a guide hole is formed in the upper end of the cylinder body, a piston is arranged in the cylinder body, a pressing rod is connected to the piston and penetrates through the guide hole, an air cavity is formed between the piston and the upper end of the cylinder body, and the air cavity is connected with the inflatable ring through an air duct; a spring is arranged between the piston and the lower end in the cylinder body; the inflatable ring expands with the side surface of the valve rod after being inflated. When the pressing rod is pressed without external force, the piston moves to a position close to the upper end in the cylinder body under the action of the spring, the volume of the air cavity is in the minimum state at the moment, gas in the air cavity is filled into the inflatable ring through the air duct, so that the inflatable ring is in an expansion state, the inflatable ring expands with the side surface of the valve rod, the inflatable ring plays a role in sealing and dust prevention, and therefore external dust and particles are prevented from entering the valve hole. When the valve rod needs to be rotated, the pressing rod is pressed down, the piston moves downwards after the pressing rod is pressed down, so that the volume of the air cavity is increased, at the moment, the gas in the inflatable ring is sucked into the air cavity, the inflatable ring is contracted, and after the inflatable ring is contracted, the inflatable ring is separated from the side surface of the valve rod, so that the inflatable ring is not contacted with the valve rod, and the abrasion of the inflatable ring caused by the friction between the valve rod and the inner side of the inflatable ring during the rotation of the valve rod is avoided; after the valve rod rotates and finishes, only need loosen and press the depression bar, the piston upwards moved to initial position under the effect of spring this moment, and the gas in the air cavity recharges in the inflatable ring for inflatable ring resumes the expanded state and expands tightly with the valve rod side.
Preferably, a third sealing ring is embedded in the inner wall of the guide hole, and the third sealing ring is in sealing fit with the pressing rod. Through set up the third sealing washer on the inner wall of guiding hole, the third sealing washer plays sealed effect, prevents that the gas in the air cavity from leaking outside the cylinder body.
Preferably, the lower end of the cylinder body is provided with a through hole.
The utility model has the beneficial effects that: according to the utility model, the plug and the valve shell are both made of stainless steel, the stainless steel has high strength and can bear larger pressure, the end face of the plug is not easy to burst, and the stainless steel is not easy to rust and has good corrosion resistance.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure: 1. the air guide pipe type air valve comprises a plug, 2, a valve shell, 3, an exhaust pipe, 4, a valve rod, 5, a cavity, 6, an air guide channel, 7, a valve hole, 8, an exhaust channel, 9, a first sealing ring, 10, a second sealing ring, 11, an annular groove, 12, an inflatable ring, 13, a cylinder body, 14, a piston, 15, an air cavity, 16, a pressing rod, 17, a third sealing ring, 18, a spring, 19, a through hole, 20 and an air guide pipe.
Detailed Description
The utility model is further described by the following detailed description in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 to 3, the stainless steel plug exhaust valve comprises a plug 1, a valve housing 2 and a valve rod 4. End cap 1 and valve casing 2 are made by the stainless steel, link to each other through the welding between end cap 1 and the valve casing 2. The plug 1 is provided with a cavity 5, the valve casing 2 is provided with an air guide channel 6 and a valve hole 7, the valve hole 7 is positioned at the upper end of the air guide channel 6, and the aperture of the valve hole 7 is larger than the diameter of the air guide channel 6. The air guide channel 6 is communicated with the cavity 5 in the plug 1, and a stepped surface is formed between the valve hole 7 and the air guide channel 6. Be provided with the internal thread on the inner wall of valve opening 7, be provided with on valve rod 4 with internal thread assorted external screw thread, 4 threaded connection of valve rod is in valve opening 7. The lower end of the valve rod 4 is connected with a first sealing ring 9 matched with the stepped surface, and the first sealing ring 9 is made of perfluororubber. The upper end of the valve rod 4 protrudes from the valve housing 2. And a second sealing ring 10 is arranged on the side surface of the valve rod 4, and the second sealing ring 10 is in sealing fit with the inner wall of the valve hole 7. The side of valve casing 2 is provided with exhaust pipe 3, and exhaust pipe 3 and valve casing 2 integrated into one piece. An exhaust passage 8 communicating with the valve hole 7 is provided in the exhaust pipe 3.
The upper end of the inner wall of the valve hole 7 is provided with an annular groove 11, and an inflating ring 12 is arranged in the annular groove 11. The inflatable ring 12 is made of rubber. A cylinder body 13 is arranged outside the valve housing 2, and a guide hole is arranged at the upper end of the cylinder body 13. The cylinder 13 is provided with a piston 14, the piston 14 is connected with a pressing rod 16, and the pressing rod 16 passes through the guide hole. And a third sealing ring 17 is embedded on the inner wall of the guide hole, and the third sealing ring 17 is in sealing fit with the pressing rod 16. The pressing rod 16 is higher than the upper end of the cylinder 13. An air cavity 15 is formed between the piston 14 and the upper end in the cylinder body 13, and the air cavity 15 is connected with the inflatable ring 12 through an air duct 20. A spring 18 is provided between the piston 14 and the lower end inside the cylinder 13. The lower end of the cylinder 13 is provided with a through hole 19. The air inflation ring 12 expands with the side surface of the valve rod 4 after being inflated. When the pressing rod is pressed without external force, the piston moves to a position close to the upper end in the cylinder body under the action of the spring, the volume of the air cavity is in the minimum state at the moment, gas in the air cavity is filled into the inflatable ring through the air duct, so that the inflatable ring is in an expansion state, the inflatable ring expands with the side surface of the valve rod, the inflatable ring plays a role in sealing and dust prevention, and therefore external dust and particles are prevented from entering the valve hole. When the valve rod needs to be rotated, the pressing rod is pressed down, the piston moves downwards after the pressing rod is pressed down, so that the volume of the air cavity is increased, at the moment, the gas in the inflatable ring is sucked into the air cavity, the inflatable ring is contracted, and after the inflatable ring is contracted, the inflatable ring is separated from the side surface of the valve rod, so that the inflatable ring is not contacted with the valve rod, and the abrasion of the inflatable ring caused by the friction between the valve rod and the inner side of the inflatable ring during the rotation of the valve rod is avoided; after the valve rod rotates and finishes, only need loosen and press the depression bar, the piston upwards moved to initial position under the effect of spring this moment, and the gas in the air cavity recharges in the inflatable ring for inflatable ring resumes the expanded state and expands tightly with the valve rod side.
In the utility model, the plug is connected with the end part of the water separator pipeline. When the plug exhaust valve is in a closed state, the first sealing ring is tightly pressed on the stepped surface, and the first sealing ring plugs the gas guide channel, so that gas in the water separator cannot be discharged. When the air needs to be exhausted, the valve rod is rotated towards one direction, the valve rod moves along the direction far away from the plug while rotating, the first sealing ring is far away from the step surface, the air guide channel is opened at the moment, and the air in the water separator is exhausted through the exhaust channel; after the exhaust is finished, the valve rod is rotated reversely, so that the first sealing ring is pressed on the stepped surface again, and the plug exhaust valve is closed. According to the utility model, the plug and the valve shell are both made of stainless steel, the stainless steel has high strength and can bear larger pressure, the end face of the plug is not easy to burst, and the stainless steel is not easy to rust and has good corrosion resistance.
Finally, it should be noted that: although the present invention 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 or portions thereof without departing from the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a stainless steel end cap discharge valve, includes end cap, valve casing, valve rod, its characterized in that: the plug and the valve casing are both made of stainless steel, the plug and the valve casing are connected through welding, a cavity is arranged in the plug, an air guide channel and a valve hole are arranged in the valve casing, the valve hole is positioned at the upper end of the air guide channel, the air guide channel is communicated with the cavity in the plug, and a stepped surface is formed between the valve hole and the air guide channel; the inner wall of the valve hole is provided with an internal thread, the valve rod is provided with an external thread matched with the internal thread, the valve rod is in threaded connection with the valve hole, the lower end of the valve rod is connected with a first sealing ring matched with the stepped surface, and the upper end of the valve rod extends out of the valve casing; the side of valve casing is provided with the blast pipe, is provided with the exhaust passage with the valve opening intercommunication in the blast pipe.
2. The stainless steel plug exhaust valve according to claim 1, wherein a second sealing ring is arranged on the side face of the valve rod, and the second sealing ring is in sealing fit with the inner wall of the valve hole.
3. The stainless steel plug vent valve of claim 1, wherein the first seal ring is made of perfluororubber.
4. The stainless steel plug vent valve of claim 1, wherein the vent tube is integrally formed with the valve housing.
5. The stainless steel plug exhaust valve according to claim 1, 2, 3 or 4, wherein the upper end of the inner wall of the valve hole is provided with an annular groove, and an inflation ring is arranged in the annular groove; a cylinder body is arranged on the outer side of the valve shell, a guide hole is formed in the upper end of the cylinder body, a piston is arranged in the cylinder body, a pressing rod is connected to the piston and penetrates through the guide hole, an air cavity is formed between the piston and the upper end of the cylinder body, and the air cavity is connected with the inflatable ring through an air duct; a spring is arranged between the piston and the lower end in the cylinder body; the inflatable ring expands with the side surface of the valve rod after being inflated.
6. The exhaust valve for the stainless steel plug according to claim 5, wherein a third sealing ring is embedded on the inner wall of the guide hole and is in sealing fit with the pressing rod.
7. The stainless steel plug exhaust valve according to claim 5, wherein the lower end of the cylinder body is provided with a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121387674.3U CN215522449U (en) | 2021-06-22 | 2021-06-22 | Stainless steel end cap discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121387674.3U CN215522449U (en) | 2021-06-22 | 2021-06-22 | Stainless steel end cap discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215522449U true CN215522449U (en) | 2022-01-14 |
Family
ID=79809483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121387674.3U Active CN215522449U (en) | 2021-06-22 | 2021-06-22 | Stainless steel end cap discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215522449U (en) |
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2021
- 2021-06-22 CN CN202121387674.3U patent/CN215522449U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230411 Address after: 312500 No. 198, Woxi Avenue, Xinchang High tech Industrial Park, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Zhongcai Zhikong Pipeline Co.,Ltd. Address before: No. 658, East Xinchang Avenue, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG ZHONGCAI PIPES SCIENCE & TECHNOLOGY Co.,Ltd. |