CN219570984U - Novel pressure reducing valve - Google Patents
Novel pressure reducing valve Download PDFInfo
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- CN219570984U CN219570984U CN202320285890.XU CN202320285890U CN219570984U CN 219570984 U CN219570984 U CN 219570984U CN 202320285890 U CN202320285890 U CN 202320285890U CN 219570984 U CN219570984 U CN 219570984U
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- pressure reducing
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- valve rod
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Abstract
The utility model provides a novel pressure reducing valve with simple result and long service life, which comprises a valve body, a valve cover, a water inlet channel, a water outlet channel, a pressure reducing chamber, a valve seat and a sealing tube, wherein the valve cover is arranged on the valve body and communicated with the outside, the pressure reducing chamber is arranged on the valve body, the pressure reducing chamber is arranged between the water inlet channel and the water outlet channel, the valve seat is arranged in the valve body and is used for communicating the water inlet channel, the pressure reducing chamber and the water outlet channel, the sealing tube is extruded to deform, the valve seat is slidably penetrated with a valve rod, a valve plate for opening and closing the valve seat is arranged in the pressure reducing chamber on the valve rod, one end of the sealing tube is sleeved at the upper end of the valve rod, a sealing device for preventing water from entering the valve rod is arranged between the other end of the sealing tube and the valve body, and the pressure regulating device is arranged between the valve rod and the valve cover and is positioned in the sealing tube.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to a novel pressure reducing valve.
Background
The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by adjusting and automatically keeps the outlet pressure stable by depending on the energy of the medium. Fig. 1 is a pressure reducing valve in the market, which comprises a valve body 1', a valve cover 5' arranged on the valve body 1' and communicated with the outside, a water inlet channel 2' and a water outlet channel 3' arranged on the valve body 1', a pressure reducing chamber 11' arranged between the water inlet channel 2' and the water outlet channel 3', a pressure reducing spring 9' arranged between the valve cover 5' and the piston plate 7', and a valve seat arranged in the valve body 1' and used for communicating the water inlet channel 2', the pressure reducing chamber 11' and the water outlet channel 3', wherein a valve rod 4' is arranged on the valve seat in a sliding manner, a valve plate 6' arranged at the lower end of the valve rod 4' and used for opening and closing the valve seat is arranged in the pressure reducing chamber 11', a piston plate 7' is arranged above the valve seat at the upper end of the valve rod 4', a sealing ring 8' used for preventing water from leaking upwards and flowing out of the valve body 1' from the valve cover 5' is arranged on the piston plate 7', the sealing ring 8' is matched with the inner wall of the valve body, a pressure reducing spring 9' used for reducing pressure is arranged between the valve cover 5' and the piston plate 7', an adjusting block 10' used for adjusting the pressure reducing spring 9' is arranged in the valve cover 5' and is lifted up and down. Wherein, because the regulating block has seted up the exhaust that is linked together with the decompression room and has passed through, so can prevent rivers inflow valve gap and avoid the relief pressure valve to leak through setting up the sealing washer. Although the pressure reducing valve can reduce pressure and protect the pressure reducing spring, the piston plate frequently moves up and down in the long-term use process of the pressure reducing valve, and the sealing ring is easy to wear due to friction between the sealing ring and the inner wall of the valve body, so that the tightness of the piston plate is affected, water flow can flow upwards, and then leakage occurs from the valve cover, and the use of the pressure reducing valve is affected. And if there is water in the relief pressure valve and the relief pressure valve is not used for a long time, the inner wall of the valve body above the piston plate can generate scale, the sealing ring on the piston plate can be easily blocked with the inner wall due to the scale, the water pressure regulating function is lost, and the abrasion of the sealing ring is aggravated when the scale enables the piston plate to move up and down. To solve this problem, the present utility model has been made.
Disclosure of Invention
Therefore, the utility model provides a novel pressure reducing valve with simple result and long service life aiming at the problems.
In order to solve the technical problems, the novel pressure reducing valve comprises a valve body, a valve cover, a water inlet channel, a water outlet channel, a pressure reducing chamber, a valve seat and a sealing tube, wherein the valve cover is arranged on the valve body and communicated with the outside, the pressure reducing chamber is arranged on the valve body, the pressure reducing chamber is arranged between the water inlet channel and the water outlet channel, the valve seat is arranged in the valve body and is used for communicating the water inlet channel, the pressure reducing chamber and the water outlet channel, the sealing tube is extruded to deform, the valve seat is slidably penetrated with a valve rod, a valve plate for opening and closing the valve seat is arranged in the pressure reducing chamber, one end of the sealing tube is sleeved at the upper end of the valve rod, a sealing device for preventing water flow from entering the valve rod is arranged between the other end of the sealing tube and the valve body, and the pressure regulating device is arranged between the valve rod and the valve cover and is positioned in the sealing tube.
The further improvement is that: the sealing device comprises a sealing ring, the sealing ring is arranged on the sealing tube, a sealing groove is formed in the valve body at the valve cover, the sealing ring is arranged in the sealing groove, and the valve cover is pressed on the sealing ring.
The further improvement is that: the sealing tube is arranged on the valve rod through the connecting device.
The further improvement is that: the connecting device comprises a fixed flange, a fixed disc is arranged on the valve rod, a sealing plate is arranged at the joint of the sealing tube and the valve rod, the fixed flange is detachably sleeved on the valve rod, and the fixed flange and the sealing plate resist to press the sealing plate on the fixed disc.
The further improvement is that: the sealing tube is as follows: plastic bellows or metal bellows or silica gel bellows or rubber sleeve.
The further improvement is that: the pressure regulating device comprises a pressure regulating block provided with a through passage, a pressure reducing piece is arranged in the sealing tube on the valve rod, one end of the pressure reducing piece resists against the sealing tube, one end of the pressure reducing piece resists against the pressure regulating block, and a lifting device for driving the pressure regulating block to lift up and down is arranged between the pressure regulating block and the valve cover.
The further improvement is that: the lifting device is as follows: the pressure regulating block is threaded through the valve cover.
The further improvement is that: the valve plate is positioned in the valve seat and is provided with a conical surface which gradually inclines from top to bottom.
The further improvement is that: an upper guide device for enabling the valve rod to stably ascend is arranged between the pressure regulating block and the valve rod.
The further improvement is that: the upper guide device comprises an upper guide pipe, the upper guide pipe is fixedly arranged on the adjusting block, and the upper end part of the valve rod is arranged in the upper guide pipe in a sliding penetrating manner.
The further improvement is that: the valve body is arranged below the valve seat and between the valve rod and the valve rod, and a descending guide device for enabling the valve rod to stably descend is arranged.
The further improvement is that: the lower guide device comprises a lower guide tube, the lower guide tube is arranged on the valve body, the lower end part of the valve rod is arranged on the lower guide tube in a sliding penetrating mode, and an anti-blocking device for preventing the valve rod from falling down and being blocked is arranged between the lower guide tube and the valve rod.
The further improvement is that: the anti-blocking device is as follows: the side of the lower guide pipe is provided with a drainage through hole penetrating through the lower guide pipe, and the drainage through hole is positioned at the lower end part of the lower guide pipe.
The further improvement is that: the side surface of the valve rod is inwards provided with a drainage surface, so that a drainage gap is formed between the sewer pipe and the valve rod.
The further improvement is that: the valve plate comprises a valve plate body, the valve plate body is fixedly arranged on a valve rod, an accommodating groove is formed in the valve plate body, a sealing valve is connected to the valve rod through threads and is positioned in the accommodating groove, and the sealing valve is sealed on a valve seat.
The further improvement is that: a first sealing piece is arranged between the sealing ring and the valve body and is positioned in the sealing groove.
The further improvement is that: the upper cover of the valve cover is provided with a dust cover for preventing impurities from entering the valve body from the valve cover.
The further improvement is that: the valve body is positioned below the valve seat and provided with a sewage draining channel penetrating through the valve body, and the valve body is connected with a sewage draining cover for sealing the sewage draining channel in a threaded manner.
The further improvement is that: the valve body is provided with a pressure gauge at the position of the water outlet channel.
By adopting the technical scheme, the utility model has the beneficial effects that:
simple structure and long service life. When the valve plate drives the valve rod to rise, the sealing tube deforms when the valve rod rises, so that the valve rod can stably rise, the sealing tube can seal the upper end part of the decompression chamber, water flow is prevented from entering the valve cover from the decompression chamber, and leakage is caused. Compared with the existing pressure reducing valve, the problem of leakage caused by abrasion of the sealing ring and the sealing of the pressure reducing chamber is avoided, and the service life of the pressure reducing valve is prolonged. And can not be influenced by scale and other impurities generated on the inner wall of the valve body, so that the service life of the pressure reducing valve is further prolonged.
Drawings
FIG. 1 is a schematic view showing a sectional structure of a conventional pressure reducing valve according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram of a cut-away structure of a novel pressure reducing valve according to an embodiment of the utility model.
Description of the embodiments
The utility model will now be further described with reference to the drawings and specific examples.
Referring to fig. 2, the embodiment of the utility model discloses a novel pressure reducing valve, which comprises a valve body 1, a valve cover 14 arranged on the valve body 1 and communicated with the outside, a water inlet channel 2 and a water outlet channel 3 arranged on the valve body 1, a pressure reducing chamber 4 arranged between the water inlet channel 2 and the water outlet channel 3, a valve seat 6 arranged in the valve body 1 and used for communicating the water inlet channel 2, the pressure reducing chamber 4 and the water outlet channel 3, and a sealing tube 8 extruded to deform, wherein a valve rod 5 is arranged on the valve seat 6 in a sliding penetrating manner, a valve plate 7 used for opening and closing the valve seat 6 is arranged on the valve rod 5 and positioned in the pressure reducing chamber 4, one end of the sealing tube 8 is sleeved at the upper end of the valve rod 5, a sealing ring 9 used for preventing water from entering the valve rod 5 is arranged between the other end of the sealing tube 8 and the valve body 1, the sealing ring 9 is arranged on the sealing tube 8, a sealing groove is arranged at the position of the valve cover 14 on the valve body 1, the sealing ring 9 is arranged in the sealing groove, a pressure regulating block 15 is arranged in the valve cover 14, a pressure reducing block 15 is arranged in the pressure regulating block 15 and a penetrating channel is arranged in the valve cover 14, the pressure regulating block 5, the inner sleeve 16 is arranged on the pressure regulating block 16, the pressure regulating block 5 is arranged on the sealing tube 8, the pressure regulating block 16 is arranged on the pressure regulating valve seat 5, and is arranged on the pressure regulating block 5, and is in the sealing sleeve, and is in the pressure regulating valve sleeve 6, and is provided with a sealing pressure sealing box and is in the pressure regulating valve 16, and is provided with a pressure regulating and pressure sealing spring, and is in between one end and one and resisting and one end, and is in and resisting and against pressure regulating valve and 15 and is and sealed.
Preferably, the sealing tube 8 is: plastic corrugated pipe or metal corrugated pipe (the metal corrugated pipe can be stainless steel corrugated pipe) or silica gel corrugated pipe or rubber sleeve.
When the water pump is used, water flows in from the water inlet channel 2, then pushes the valve plate 7 to ascend, and the water flows into the decompression chamber 4 and then flows out from the water outlet channel 3. When the valve plate 7 drives the valve rod 5 to rise, and the valve rod 5 rises, the sealing tube 8 deforms, so that the valve rod 5 can stably rise, the sealing tube 8 can seal the upper end part of the decompression chamber 4, and water flow is prevented from entering the valve cover 14 from the decompression chamber 4, so that leakage is caused. Compared with the existing pressure reducing valve, the problem of leakage caused by abrasion due to the sealing of the sealing ring and the pressure reducing chamber 4 is avoided, and the service life of the pressure reducing valve is prolonged.
In order to facilitate production, installation and replacement of the sealing tube 8, the sealing tube further comprises a fixing flange 11, a fixing disc 12 is arranged on the valve rod 5, a sealing plate 10 is arranged at the joint of the sealing tube 8 and the valve rod 5, a threaded connecting sleeve of the fixing flange 11 is arranged on the valve rod 5, and the fixing flange 11 and the sealing plate 10 resist pressing the sealing plate 10 on the fixing disc 12.
In order to be able to better regulate the outlet pressure and thus the outlet flow more precisely, the valve plate 7 is provided with a conical surface 71 in the valve seat 6, which tapers from top to bottom. When the valve plate 7 is opened, if the valve plate 7 adopts planar arrangement, the opening degree is larger, and the control is difficult to be accurate when the outlet small flow is regulated. The included angle is formed between the valve plate 7 and the valve seat, when the valve plate 7 is opened, the gap between the valve plate 7 and the valve seat is small, so that the accuracy is higher when the flow is regulated, and when the valve plate with the conical surface 71 is opened, the flow is larger along with the larger opening degree of the valve plate, so that the regulation of the flow from small to large is realized.
In order to enable the valve rod 5 to stably ascend and descend, the valve rod further comprises an upper guide pipe 17 and a lower guide pipe 20, wherein the upper guide pipe 17 is fixedly arranged on the adjusting block, the upper end part of the valve rod 5 is slidably arranged in the upper guide pipe 17 in a penetrating mode, the lower guide pipe 20 is arranged on the valve body 1, the lower end part of the valve rod 5 is slidably arranged on the lower guide pipe 20 in a penetrating mode, and an anti-blocking device for preventing the valve rod 5 from descending and being blocked is arranged between the lower guide pipe 20 and the valve rod 5.
Preferably, the anti-blocking device is: the side surface of the lower guide tube 20 is provided with a drainage through hole 21 penetrating through the lower guide tube 20, and the drainage through hole 21 is positioned at the lower end part of the lower guide tube 20.
Preferably, the anti-blocking device may further be: the side surface of the valve rod 5 is inwards provided with a drainage surface, so that a drainage gap is formed between the sewer pipe and the valve rod 5.
For convenient maintenance change valve plate 7, improve the cyclic utilization of valve plate 7, valve plate 7 includes valve plate 7 body, valve plate 7 body is fixed to be established on valve rod 5, the holding tank has been seted up to valve plate 7 body, threaded connection has sealed lamella and sealed lamella to be located the holding tank on the valve rod 5, sealed lamella seals on disk seat 6.
In order to further improve the tightness between the sealing tube 8 and the valve body 1, a sealing gasket 13 is arranged between the sealing ring 9 and the valve body 1, and the sealing gasket 13 is positioned in the sealing groove.
In order to prevent impurities from entering the valve body 1 and prolong the service life of the pressure reducing valve, the upper cover of the valve cover 14 is provided with a dust cover 18 for preventing impurities from entering the valve body 1 from the valve cover 14.
In order to be convenient for cleaning dirt accumulated below the valve seat 6, a drain passage penetrating through the valve body 1 is formed below the valve seat 6 by the valve body 1, and a drain cover 22 for sealing the drain passage is connected to the valve body 1 in a threaded manner.
In order to be able to conveniently read the pressure of the water outlet channel 3, a pressure reducing valve is conveniently adjusted, and a pressure gauge 19 is arranged at the position of the water outlet channel 3 of the valve body 1.
While the basic principles and main features of the present utility model and advantages thereof have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described merely by way of illustration of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined in the appended claims and their equivalents.
Claims (19)
1. The utility model provides a novel relief pressure valve, includes the valve body, sets up the valve gap that is linked together with the external world on the valve body, sets up inlet channel and outlet channel on the valve body, sets up in inlet channel and outlet channel between the decompression room, sets up in the valve body be used for intercommunication inlet channel, decompression room and outlet channel's disk seat, slide on the disk seat and wear to be equipped with the valve rod, be located the valve plate that is used for opening and close the disk seat in the decompression room on the valve rod, its characterized in that: the valve is characterized by further comprising a sealing tube which is extruded to deform, one end of the sealing tube is sleeved at the upper end of the valve rod, a sealing device for preventing water flow from entering the valve rod is arranged between the other end of the sealing tube and the valve body, a pressure regulating device is arranged between the valve rod and the valve cover, and the pressure regulating device is positioned in the sealing tube.
2. The novel pressure reducing valve according to claim 1, wherein: the sealing device comprises a sealing ring, the sealing ring is arranged on the sealing tube, a sealing groove is formed in the valve body at the valve cover, the sealing ring is arranged in the sealing groove, and the valve cover is pressed on the sealing ring.
3. The novel pressure reducing valve according to claim 1, wherein: the sealing tube is arranged on the valve rod through the connecting device.
4. A novel pressure relief valve according to claim 3, wherein: the connecting device comprises a fixed flange, a fixed disc is arranged on the valve rod, a sealing plate is arranged at the joint of the sealing tube and the valve rod, the fixed flange is detachably sleeved on the valve rod, and the fixed flange and the sealing plate resist to press the sealing plate on the fixed disc.
5. The novel pressure reducing valve according to claim 1, wherein: the sealing tube is as follows: plastic bellows or metal bellows or silica gel bellows or rubber sleeve.
6. The novel pressure reducing valve according to claim 1, wherein: the pressure regulating device comprises a pressure regulating block provided with a through passage, a pressure reducing piece is arranged in the sealing tube on the valve rod, one end of the pressure reducing piece resists against the sealing tube, one end of the pressure reducing piece resists against the pressure regulating block, and a lifting device for driving the pressure regulating block to lift up and down is arranged between the pressure regulating block and the valve cover.
7. The novel pressure reducing valve according to claim 6, wherein: the lifting device is as follows: the pressure regulating block is threaded through the valve cover.
8. The novel pressure reducing valve according to claim 1, wherein: the valve plate is positioned in the valve seat and is provided with a conical surface which gradually inclines from top to bottom.
9. The novel pressure reducing valve according to claim 6, wherein: an upper guide device for enabling the valve rod to stably ascend is arranged between the pressure regulating block and the valve rod.
10. The novel pressure reducing valve according to claim 9, wherein: the upper guide device comprises an upper guide pipe, the upper guide pipe is fixedly arranged on the adjusting block, and the upper end part of the valve rod is arranged in the upper guide pipe in a sliding penetrating manner.
11. The novel pressure reducing valve according to claim 1, wherein: the valve body is arranged below the valve seat and between the valve rod and the valve rod, and a descending guide device for enabling the valve rod to stably descend is arranged.
12. The novel pressure reducing valve as set forth in claim 11, wherein: the lower guide device comprises a lower guide tube, the lower guide tube is arranged on the valve body, the lower end part of the valve rod is arranged on the lower guide tube in a sliding penetrating mode, and an anti-blocking device for preventing the valve rod from falling down and being blocked is arranged between the lower guide tube and the valve rod.
13. The novel pressure reducing valve according to claim 12, wherein: the anti-blocking device is as follows: the side of the lower guide pipe is provided with a drainage through hole penetrating through the lower guide pipe, and the drainage through hole is positioned at the lower end part of the lower guide pipe.
14. The novel pressure reducing valve according to claim 12, wherein: the side surface of the valve rod is inwards provided with a drainage surface, so that a drainage gap is formed between the sewer pipe and the valve rod.
15. The novel pressure reducing valve according to claim 1, wherein: the valve plate comprises a valve plate body, the valve plate body is fixedly arranged on a valve rod, an accommodating groove is formed in the valve plate body, a sealing valve is connected to the valve rod through threads and is positioned in the accommodating groove, and the sealing valve is sealed on a valve seat.
16. A novel pressure reducing valve as set forth in claim 2, wherein: a first sealing piece is arranged between the sealing ring and the valve body and is positioned in the sealing groove.
17. The novel pressure reducing valve according to claim 1, wherein: the upper cover of the valve cover is provided with a dust cover for preventing impurities from entering the valve body from the valve cover.
18. The novel pressure reducing valve according to claim 1, wherein: the valve body is positioned below the valve seat and provided with a sewage draining channel penetrating through the valve body, and the valve body is connected with a sewage draining cover for sealing the sewage draining channel in a threaded manner.
19. The novel pressure reducing valve according to claim 1, wherein: the valve body is provided with a pressure gauge at the position of the water outlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320285890.XU CN219570984U (en) | 2023-02-22 | 2023-02-22 | Novel pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320285890.XU CN219570984U (en) | 2023-02-22 | 2023-02-22 | Novel pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570984U true CN219570984U (en) | 2023-08-22 |
Family
ID=87668342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320285890.XU Active CN219570984U (en) | 2023-02-22 | 2023-02-22 | Novel pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570984U (en) |
-
2023
- 2023-02-22 CN CN202320285890.XU patent/CN219570984U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |