CN219493091U - Piston type pressure reducing and stabilizing valve - Google Patents
Piston type pressure reducing and stabilizing valve Download PDFInfo
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- CN219493091U CN219493091U CN202320613160.8U CN202320613160U CN219493091U CN 219493091 U CN219493091 U CN 219493091U CN 202320613160 U CN202320613160 U CN 202320613160U CN 219493091 U CN219493091 U CN 219493091U
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Abstract
The utility model relates to a piston type pressure reducing and stabilizing valve which comprises a pressure reducing valve body, a water inlet channel and a water outlet channel which are arranged in the pressure reducing valve body, a piston valve core which is arranged between the water inlet channel and the water outlet channel, a hollow columnar valve cover which is arranged at the top of the pressure reducing valve body and is in spiral connection, an elastic piece which is arranged in the valve cover and is positioned above the valve core, wherein the piston valve core comprises a valve core body, a valve rod which is arranged in the valve core body and can slide up and down, a valve plate which is sleeved at the top of the valve rod and can slide up and down along with the valve rod, a valve clack which is sleeved at the bottom of the valve rod and can slide up and down along with the valve rod, and a filtering device for filtering water flow is further arranged on the piston valve core.
Description
Technical Field
The utility model relates to the field of pipeline valves, in particular to a piston type pressure reducing and stabilizing valve.
Background
The piston type pressure reducing valve adopts the opening degree of an opening and closing piece (piston) in a control valve body to regulate the flow rate of a medium, reduces the pressure of the medium, and simultaneously regulates the opening degree of the opening and closing piece by the action of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range, and under the condition that the inlet pressure is continuously changed, the outlet pressure is kept within a set range, thereby protecting subsequent life production appliances. The valve core assembly in the conventional piston type pressure reducing valve structure is formed by installing all parts in the valve body in a split type and sequentially, and all parts forming the valve core assembly are required to be disassembled in sequence in the process of cleaning and maintaining the valve core assembly.
However, there are the following drawbacks:
the valve core assembly formed by split assembly is complex in structure, troublesome in processing and assembly, the water outlet hole of the valve is usually designed in the valve body, and when each part of the valve core assembly is disassembled, cleaned and assembled again, a certain precision error exists between the valve clack assembly and the opening and closing of the water outlet hole, so that the service life of the valve is greatly reduced.
Disclosure of Invention
Therefore, the utility model provides the piston type pressure reducing and stabilizing valve which has simple structure, convenient installation and can reduce static pressure and reduce pressure and stabilize pressure.
In order to realize the technical problems, the utility model adopts the following solution:
the utility model provides a piston pressure reducing and stabilizing valve, includes the relief pressure valve body, locates intake channel and the outlet channel in the relief pressure valve body, locate piston case between intake channel and the outlet channel, locate relief pressure valve body top screwed hollow columnar valve gap, locate be located in the valve gap the elastic component of case top, the piston case includes the case body, locates the valve rod that can slide from top to bottom in the case body, cover locate the valve rod top can slide from top to bottom along with the valve rod and with the valve plate that the case body top size closed, cover locate the valve rod bottom and be located the valve rod body outside can slide from top to bottom along with the valve rod valve clack, the valve clack is along with opening and close the apopore when the valve rod slides from top to bottom, still be equipped with the filter equipment who is used for filtering the rivers on the piston case.
The further improvement is that: the filtering device is as follows: the piston valve core further comprises a filter screen which is arranged on the valve core body and is positioned at the middle part of the valve core body to wrap the valve core body.
The further improvement is that: the top end of the valve rod is provided with a limit nut which locks the valve plate on the valve rod and limits the elastic piece to slide out of the valve clack.
The further improvement is that: and the device also comprises an adjusting device for adjusting the compression length of the elastic piece.
The further improvement is that: the adjusting device comprises an adjusting bolt, a locking nut and a propping disc arranged between the adjusting bolt and the elastic piece, wherein a threaded hole is formed in the valve cover, the adjusting bolt can be lifted up and down to be arranged on the threaded hole, and the locking nut is arranged on the adjusting bolt and located at the top end of the valve cover and can lock the adjusting bolt after the adjusting bolt reaches a preset position.
The further improvement is that: the adjusting device further includes: the adjusting bolt is arranged in the valve cover, the threaded plate is arranged on the adjusting bolt in a threaded connection mode, a round hole which is used for limiting the screw cap of the adjusting bolt to penetrate out is formed in the valve cover, and the elastic piece abuts against the threaded plate and sleeves the screw rod of the adjusting bolt.
The further improvement is that: the pressure gauge mounting seat is arranged on the pressure reducing valve body and positioned at two sides of the upper valve cover, and a pressure reducing channel communicated with the interior of the pressure reducing valve body is arranged on the pressure gauge mounting seat.
The further improvement is that: the pressure gauge mounting seat is provided with a sealing cover in threaded connection, and the sealing cover is provided with a sealing gasket which is sleeved on the sealing cover and is positioned between the sealing cover and the pressure gauge mounting seat.
The further improvement is that: the pressure gauge mounting seat is obliquely arranged on the pressure reducing valve body.
The further improvement is that: the water inlet channel is provided with a water inlet, and the water inlet corresponds to the position of the filter screen.
The further improvement is that: the water outlet channel is provided with a water outlet, and the water outlet corresponds to the water outlet hole.
The further improvement is that: a first sealing piece is arranged between the upper part of the filter screen and the valve body of the pressure reducing valve.
The further improvement is that: and a second sealing piece is arranged between the lower part of the filter screen and the valve body of the pressure reducing valve.
The further improvement is that: and a third sealing piece is arranged between the valve clack and the valve core body.
By adopting the technical scheme, the utility model has the beneficial effects that:
1. the piston valve core in the piston type pressure reducing valve is integrally designed, the water inlet channel is communicated with the piston valve core through the water inlet hole, the piston valve core is communicated with the water outlet channel through the water outlet hole, the piston valve core is detachably connected with the pressure reducing valve body, and the valve cover can be directly taken out from the top of the pressure reducing valve body to clean or replace the piston valve core after being detached, so that the piston type pressure reducing valve is convenient to use.
2. The valve rod capable of lifting is arranged in the piston valve core, an elastic element which pushes each other is arranged between the valve plate at the top of the piston valve core and the adjusting bolt, the valve clack is arranged at the bottom of the piston valve core, and under different pressures, the valve clack is pushed by the medium pressure at the outlet end and the elastic force of the elastic element to open and close the water outlet, so that the effects of static pressure reduction and pressure stabilization of the valve are realized, and water outlet is more stable in the use process.
3. The filtering device is used for filtering water flow flowing through the pressure reducing valve body, impurities in the water flow can be prevented from entering the pressure reducing valve body, the pressure reducing valve body is prevented from being blocked by the impurities, and therefore the service life of the pressure reducing valve body can be prolonged.
4. The piston type pressure reducing valve is provided with a pressure gauge mounting seat, whether the pressure at the inlet and the outlet is monitored or not can be selected by oneself, the pressure gauge mounting seat is provided with a sealing cover through threads, and when the pressure gauge is not mounted, the sealing cover can prevent water flow leakage.
5. The pressure gauge mounting seat is obliquely arranged on the valve body of the pressure reducing valve, so that the pressure gauge can be conveniently mounted, and the pressure gauge is prevented from touching the valve cover during mounting.
Drawings
Fig. 1 is a schematic diagram of a piston-type pressure reducing and stabilizing valve embodiment 1 according to the present utility model.
Fig. 2 is a schematic structural diagram of a piston valve core of a piston type pressure reducing and stabilizing valve according to the present utility model.
Fig. 3 is a schematic structural diagram of an embodiment 2 of a piston-type pressure reducing and stabilizing valve according to the present utility model.
Description of the embodiments
The utility model will now be further described with reference to the drawings and specific examples.
Embodiment 1, as shown in fig. 1 and 2, a piston pressure reducing and stabilizing valve comprises a pressure reducing valve body 1, a water inlet channel 2 and a water outlet channel 3 which are arranged in the pressure reducing valve body 1, a piston valve core 4 which is arranged between the water inlet channel 2 and the water outlet channel 3, a hollow columnar valve cover 5 which is arranged at the top of the pressure reducing valve body 1 and is spirally connected with the pressure reducing valve body 1, and an elastic piece 6 which is arranged above the piston valve core 4 and is arranged in the valve cover 5, wherein an adjusting device for adjusting the compression length of the elastic piece 6 is arranged on the valve cover 5, the adjusting device comprises an adjusting bolt 7, a locking nut 8 and a propping disc 9 which is arranged between the adjusting bolt 7 and the elastic piece 6, a threaded hole 10 is arranged on the valve cover 5, the adjusting bolt 7 can be lifted up and down, the locking nut 8 is arranged on the adjusting bolt 7, the top end of the adjusting bolt 7 can be locked on the adjusting bolt 7 after the adjusting bolt 7 reaches a pre-corresponding position, and the adjusting bolt 7 acts on the elastic piece 6 through the propping disc 9.
The piston valve core 4 further comprises a valve core body 41, a valve rod 42 which is arranged in the valve core body 41 and can slide up and down, a valve plate 43 which is sleeved at the top of the valve rod 42 and can slide up and down along with the valve rod 42 and is matched with the top of the valve core body 41 in size, a valve clack 44 which is sleeved at the bottom of the valve rod 42 and is positioned outside the valve core body 41 and can slide up and down along with the valve rod 42, the valve clack 44 opens and closes the water outlet 11 when sliding up and down along with the valve rod 42, a limit nut 20 which locks the valve plate 43 on the valve rod 42 and limits the elastic piece 6 to slide out of the valve clack 44 is arranged at the top of the valve rod 42, a filtering device for filtering water flow is further arranged on the piston valve core 4, and a filter screen 45 which is arranged on the valve core body 41 and is positioned in the middle part of the valve core body 41 and wraps the valve core body 41 is arranged.
A first sealing member 17 is arranged between the upper part of the filter screen 45 and the pressure reducing valve body 1, a second sealing member 18 is arranged between the lower part of the filter screen 45 and the pressure reducing valve body 1, and a third sealing member 19 is arranged between the valve clack 44 and the valve core body 41.
The water inlet channel 2 is provided with a water inlet hole 12, the water inlet hole 12 corresponds to the filter screen 45 in position, the water outlet channel 3 is provided with a water outlet hole 13, and the water outlet hole 13 corresponds to the water outlet 11 in position.
The pressure reducing valve is characterized in that pressure gauge mounting seats 14 are obliquely arranged on the pressure reducing valve body 1 and located at two sides of the valve cover 5, pressure channels 16 communicated with the interior of the pressure reducing valve body 1 are formed in the pressure gauge mounting seats 14, sealing covers 15 are arranged on the pressure gauge mounting seats 14 in a threaded connection mode, and sealing gaskets 22 located between the sealing covers 15 and the pressure gauge mounting seats 14 are arranged on the sealing covers 15.
Principle of operation
When the valve plate 43 of the piston valve core 4 is acted by the elastic piece 6, the valve plate 43 is pushed by pressure to push the valve rod 42 to slide downwards, the valve clack 44 leaves the valve core body 41 to open the water outlet 21, at the moment, water flows from the water inlet channel 2 through the filter screen 45 of the piston valve core 4 to the piston valve core 4 through the water inlet hole 12, and flows from the water outlet 21 of the piston valve core 4 to the water outlet channel 3 through the water outlet 13 of the water outlet channel 3.
In the use process, the water flow pressure changes, when the outlet pressure is greater than or equal to the precompression of the elastic piece 6, the valve clack 44 pushes the valve rod 42 to slide upwards under the pressure action, the valve plate 43 acts on the elastic piece 6, so that the elastic piece 6 contracts and moves upwards until the water outlet 21 is closed, and at the moment, the valve is closed to achieve the static pressure reduction;
when the outlet pressure is smaller than the pre-pressure of the elastic member 6, the valve clack 44 drives the valve rod 42 to slide downwards, the valve rod 42 drives the valve plate 43 to stretch the elastic member, at this time, the water outlet 21 is opened, the water inlet channel 2 supplements flow and pressure to the water outlet channel 3, the larger the outlet pressure is smaller than the difference value of the pre-pressure of the elastic member 6, the larger the stretching of the elastic member 6 is, the larger the water outlet is, the faster the water inlet channel 2 supplements the water outlet channel 3, so as to maintain the pressure balance of the outlet pressure and the elastic member 6 to achieve pressure reduction and pressure stabilization.
In embodiment 2, as shown in fig. 3, a valve body of a piston-type pressure reducing and stabilizing valve may be in an oblique form.
The utility model provides a piston pressure reducing and stabilizing valve, includes relief pressure valve body 1, locates intake channel 2 and the play water channel 3 in the relief pressure valve body 1, locate piston case 4 between intake channel 2 and the play water channel 3, locate relief pressure valve body 1 top with the hollow columnar valve gap 5 of relief pressure valve body 1 screwed connection, locate in the valve gap 5 be located elastic component 6 of piston case 4 top, be equipped with on the valve gap 5 and be used for adjusting elastic component 6 compression length's adjusting device, adjusting device includes adjusting bolt 7, lock nut 8 and locates adjusting bolt 7 with support the footwall 9 between the elastic component 6, be equipped with screw hole 10 on the valve gap 5, adjusting bolt 7 can reciprocate to locate on the screw hole 10, lock nut 8 is located on adjusting bolt 7 valve gap 5 top can lock adjusting bolt 7 after adjusting bolt 7 reaches the pre-applied position, adjusting bolt 7 passes through support footwall 9 acts on elastic component 6.
The piston valve core 4 further comprises a valve core body 41, a valve rod 42 which is arranged in the valve core body 41 and can slide up and down, a valve plate 43 which is sleeved at the top of the valve rod 42 and can slide up and down along with the valve rod 42 and is matched with the top of the valve core body 41 in size, a valve clack 44 which is sleeved at the bottom of the valve rod 42 and is positioned outside the valve core body 41 and can slide up and down along with the valve rod 42, the valve clack 44 opens and closes the water outlet 11 when sliding up and down along with the valve rod 42, a limit nut 20 which locks the valve plate 43 on the valve rod 42 and limits the elastic piece 6 to slide out of the valve clack 44 is arranged at the top of the valve rod 42, a filtering device for filtering water flow is further arranged on the piston valve core 4, and a filter screen 45 which is arranged on the valve core body 41 and is positioned in the middle part of the valve core body 41 and wraps the valve core body 41 is arranged.
A first sealing member 17 is arranged between the upper part of the filter screen 45 and the pressure reducing valve body 1, a second sealing member 18 is arranged between the lower part of the filter screen 45 and the pressure reducing valve body 1, and a third sealing member 19 is arranged between the valve clack 44 and the valve core body 41.
The water inlet channel 2 is provided with a water inlet hole 12, the water inlet hole 12 corresponds to the filter screen 45 in position, the water outlet channel 3 is provided with a water outlet hole 13, and the water outlet hole 13 corresponds to the water outlet 11 in position.
The pressure reducing valve is characterized in that pressure gauge mounting seats 14 are obliquely arranged on the pressure reducing valve body 1 and located at two sides of the valve cover 5, pressure channels 16 communicated with the interior of the pressure reducing valve body 1 are formed in the pressure gauge mounting seats 14, sealing covers 15 are arranged on the pressure gauge mounting seats 14 in a threaded connection mode, and sealing gaskets 22 located between the sealing covers 15 and the pressure gauge mounting seats 14 are arranged on the sealing covers 15.
Principle of operation
When the valve plate 43 of the piston valve core 4 is acted by the elastic piece 6, the valve plate 43 is pushed by pressure to push the valve rod 42 to slide downwards, the valve clack 44 leaves the valve core body 41 to open the water outlet 21, at the moment, water flows from the water inlet channel 2 through the filter screen 45 of the piston valve core 4 to the piston valve core 4 through the water inlet hole 12, and flows from the water outlet 21 of the piston valve core 4 to the water outlet channel 3 through the water outlet 13 of the water outlet channel 3.
In the use process, the water flow pressure changes, when the outlet pressure is greater than or equal to the precompression of the elastic piece 6, the valve clack 44 pushes the valve rod 42 to slide upwards under the pressure action, the valve plate 43 acts on the elastic piece 6, so that the elastic piece 6 contracts and moves upwards until the water outlet 21 is closed, and at the moment, the valve is closed to achieve the static pressure reduction;
when the outlet pressure is smaller than the pre-pressure of the elastic member 6, the valve clack 44 drives the valve rod 42 to slide downwards, the valve rod 42 drives the valve plate 43 to stretch the elastic member, at this time, the water outlet 21 is opened, the water inlet channel 2 supplements flow and pressure to the water outlet channel 3, the larger the outlet pressure is smaller than the difference value of the pre-pressure of the elastic member 6, the larger the stretching of the elastic member 6 is, the larger the water outlet is, the faster the water inlet channel 2 supplements the water outlet channel 3, so as to maintain the pressure balance of the outlet pressure and the elastic member 6 to achieve pressure reduction and pressure stabilization.
Based on the foregoing, the adjusting device may also be: the adjusting bolt is arranged in the valve cover, the threaded plate is arranged on the adjusting bolt in a threaded connection mode, a round hole which is used for limiting the screw cap of the adjusting bolt to penetrate out is formed in the valve cover, and the elastic piece abuts against the threaded plate and sleeves the screw rod of the adjusting bolt.
The above description is illustrative of the embodiments using the present teachings, and is not intended to limit the scope of the present teachings to any particular modification or variation of the present teachings by those skilled in the art.
Claims (11)
1. The utility model provides a piston pressure reducing and stabilizing valve, includes the relief pressure valve body, locates intake passage and the play water channel in the relief pressure valve body, locate hollow columnar valve gap at relief pressure valve body top, locate piston case between intake passage and the play water channel, still be equipped with on the relief pressure valve body and be used for controlling the pressure regulating device of piston case and then control play water channel water yield locates lie in the valve gap the elastic component of case top, its characterized in that: the piston valve core comprises a valve core body, a valve rod which is arranged in the valve core body and can slide up and down, a valve plate which is sleeved at the top of the valve rod and can slide up and down along with the valve rod and is matched with the top of the valve core body in size, and a valve clack which is sleeved at the bottom of the valve rod and is positioned outside the valve core body and can slide up and down along with the valve rod to open and close a water outlet hole, and a filtering device for filtering fluid media flowing into the piston valve core is further arranged on the piston valve core.
2. The piston pressure reducing and stabilizing valve according to claim 1, wherein: the filtering device is as follows: the piston valve core further comprises a filter screen which is arranged on the valve core body and is positioned at the middle part of the valve core body to wrap the valve core body.
3. The piston pressure reducing and stabilizing valve according to claim 1, wherein: the top end of the valve rod is provided with a limit nut which locks the valve plate on the valve rod and limits the elastic piece to slide out of the valve clack.
4. The piston pressure reducing and stabilizing valve according to claim 1, wherein: and the device also comprises an adjusting device for adjusting the compression length of the elastic piece.
5. The piston pressure reducing and stabilizing valve according to claim 4, wherein: the adjusting device is as follows: the adjusting bolt, the lock nut and the supporting disc are arranged between the adjusting bolt and the elastic piece, a threaded hole is formed in the valve cover, the adjusting bolt can be lifted up and down to be arranged on the threaded hole, and the lock nut is arranged on the adjusting bolt and located at the top end of the valve cover and can lock the adjusting bolt after the adjusting bolt reaches a pre-stress position.
6. The piston pressure reducing and stabilizing valve according to claim 4, wherein: the adjusting device further includes: the adjusting bolt is arranged in the valve cover, the threaded plate is arranged on the adjusting bolt in a threaded connection mode, a round hole which is used for limiting the screw cap of the adjusting bolt to penetrate out is formed in the valve cover, and the elastic piece abuts against the threaded plate and sleeves the screw rod of the adjusting bolt.
7. The piston pressure reducing and stabilizing valve according to claim 5, wherein: the pressure gauge mounting seat is arranged on the pressure reducing valve body and positioned at two sides of the upper valve cover, and a pressure reducing channel communicated with the interior of the pressure reducing valve body is arranged on the pressure gauge mounting seat.
8. The piston pressure reducing and stabilizing valve according to claim 7, wherein: the pressure gauge mounting seat is provided with a sealing cover in threaded connection, and the sealing cover is provided with a sealing gasket which is sleeved on the sealing cover and is positioned between the sealing cover and the pressure gauge mounting seat.
9. The piston pressure reducing and stabilizing valve according to claim 7, wherein: the pressure gauge mounting seat is obliquely arranged on the pressure reducing valve body.
10. The piston pressure reducing and stabilizing valve according to claim 1, wherein: the water inlet channel is provided with a water inlet, and the water inlet corresponds to the position of the filtering device.
11. The piston pressure reducing and stabilizing valve according to claim 1, wherein: the water outlet channel is provided with a water outlet, and the water outlet corresponds to the water outlet hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320613160.8U CN219493091U (en) | 2023-03-27 | 2023-03-27 | Piston type pressure reducing and stabilizing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320613160.8U CN219493091U (en) | 2023-03-27 | 2023-03-27 | Piston type pressure reducing and stabilizing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219493091U true CN219493091U (en) | 2023-08-08 |
Family
ID=87507569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320613160.8U Active CN219493091U (en) | 2023-03-27 | 2023-03-27 | Piston type pressure reducing and stabilizing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219493091U (en) |
-
2023
- 2023-03-27 CN CN202320613160.8U patent/CN219493091U/en active Active
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