CN113236833B - Piston type pressure reducing valve with long service life - Google Patents
Piston type pressure reducing valve with long service life Download PDFInfo
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- CN113236833B CN113236833B CN202110518583.7A CN202110518583A CN113236833B CN 113236833 B CN113236833 B CN 113236833B CN 202110518583 A CN202110518583 A CN 202110518583A CN 113236833 B CN113236833 B CN 113236833B
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- pressure reducing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention belongs to the field of pressure reducing valves, in particular to a piston type pressure reducing valve with long service life, which aims at solving the problems that the existing pressure reducing valve is seriously worn when in use due to the contact of a valve core and the inner wall of a valve body, the air pressure adjusting range is smaller, and gas cannot be filtered when in gas inlet, so that the pressure reducing valve is blocked, and the service life is further shortened.
Description
Technical Field
The invention relates to the technical field of pressure reducing valves, in particular to a piston type pressure reducing valve with long service life.
Background
The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure through regulation and leads the outlet pressure to be automatically kept stable by relying on the energy of the medium. From the viewpoint of hydrodynamics, the pressure reducing valve is a throttling element with variable local resistance, namely, the flow speed and the kinetic energy of fluid are changed by changing the throttling area to cause different pressure losses, thereby achieving the purpose of pressure reduction. Then, the fluctuation of the pressure behind the valve is balanced with the spring force by means of the adjustment of the control and adjustment system, so that the pressure behind the valve is kept constant within a certain error range.
When the pressure reducing valve is used, the size of the air outlet can be adjusted according to the air pressure of air inflow, and then the purpose of pressure reduction is achieved, however, due to the fact that a valve core of the existing pressure reducing valve is in contact with the inner wall of a valve body, abrasion is serious when the pressure reducing valve is used, the air pressure adjusting range is small, air cannot be filtered when air inflow, the pressure reducing valve is blocked, and further the service life is prolonged, so that the piston type pressure reducing valve with the long service life is provided for solving the problem mentioned above.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a piston type pressure reducing valve with long service life.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a long service life's piston relief pressure valve, includes the valve body, the top fixedly connected with intake pipe of valve body, one side of valve body is provided with the outlet duct that is linked together, the regulating box that valve body and fixedly connected with are linked together is run through to the bottom of intake pipe, the same sliding plate of both sides inner wall sliding connection of valve body, the same first spring of fixedly connected with between the top of sliding plate and the bottom of regulating box, a plurality of ventholes have been seted up to one side that the regulating box is close to the outlet duct, the bottom of sliding plate is provided with the adjusting part who is used for adjusting atmospheric pressure, the bottom of valve body is provided with the protection component who is used for protecting the regulating box, the top of intake pipe is provided with the protection component who is used for preventing the intake pipe jam.
Preferably, the adjusting assembly comprises a screw rod rotatably connected to the bottom of the sliding plate, and the bottom thread of the screw rod penetrates through the valve body and is fixedly connected with a hand wheel.
Preferably, the protection component comprises two sliding rods fixedly connected to the bottom of the sliding plate, the bottom of each sliding rod slidably penetrates through the valve body and the limiting plate fixedly connected to the valve body, a plurality of clamping grooves are formed in the sliding rods, two fixing plates symmetrically arranged on the bottom of the valve body are symmetrically connected to the bottom of the valve body, clamping blocks clamped with the clamping grooves are slidably connected in the fixing plates in a penetrating mode, one end, far away from the sliding rods, of each clamping block is fixedly connected with a pulling plate, and two second springs symmetrically arranged are fixedly connected between the pulling plate and the fixing plates.
Preferably, the protection assembly comprises an upper pressing plate, a connecting plate and a lower pressing plate, a third through hole is formed in the lower pressing plate, the top of the air inlet pipe is communicated with the third through hole, a second through hole is formed in the connecting plate, a first through hole is formed in the upper pressing plate, a hose communicated with the first through hole is fixedly connected to the top of the upper pressing plate, and the first through hole, the third through hole and the second through hole are communicated with each other.
Preferably, the top and the bottom of the connecting plate are both fixedly connected with rubber pads.
Preferably, the fixed cover of outer wall of regulating box is equipped with a plurality of rubber circles, and a plurality of rubber circles all contradict with the inner wall of valve body.
Preferably, the bottom fixedly connected with extension spring of valve body, the bottom fixedly connected with trapezoidal plate of extension spring, the bottom fixedly connected with pull ring of trapezoidal plate, the spout has been seted up to the inside of trapezoidal plate, the bottom fixedly connected with of valve body and the dead lever of spout looks adaptation, dead lever and spout sliding connection, the both sides of trapezoidal plate are inconsistent with one side that two arm-stays are close to each other respectively.
Preferably, the inner threads of the upper pressing plate are connected with two symmetrically arranged bolts, two symmetrically arranged threaded holes are formed in the connecting plate, two symmetrically arranged threaded grooves are formed in the top of the lower pressing plate, and the threaded grooves and the threaded holes are matched with the bolts.
Preferably, a dust removal filter screen and absorbent paper are arranged inside the second through hole.
Preferably, the inner diameter of the plurality of air outlet holes is gradually increased from top to bottom.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, gas enters the gas inlet pipe through the hose, the first through hole, the second through hole and the third through hole, dust in the gas can be removed through the dust removal filter screen, moisture in the gas can be removed through the absorbent paper, the bolt is screwed out, and the connecting plate can be taken out, so that the absorbent paper and the dust removal filter screen can be conveniently replaced, and the service life of the device can be prolonged;
2. in the invention, filtered gas enters the adjusting box through the gas inlet pipe to push the adjusting box to vertically move downwards, the adjusting box extrudes the first spring and enables the gas outlet holes with different inner diameters to be communicated with the gas outlet pipe, and the larger the gas pressure is, the larger the downward movement amplitude of the adjusting box is, the smaller the inner diameter of the gas outlet hole is, so that the purpose of pressure reduction can be achieved;
3. according to the invention, the trapezoidal plate is vertically pulled downwards, the trapezoidal plate stretches the tension spring and releases the state of conflict with the pull plate, the two pull plates are close to each other under the action of the elastic force of the second spring, the pull plates drive the two clamping blocks to close to each other and release braking on the sliding rod, the hand wheel drives the screw rod to rotate by rotating the hand wheel, the screw rod drives the sliding plate to vertically move downwards, the compression degree of the first spring can be further adjusted, the resistance of downward movement of the adjusting box can be further controlled, and the adjusting range of air pressure is further enlarged.
According to the invention, through the arrangement of the absorbent paper and the dust removal filter screen, dust and moisture in the gas can be filtered, the connecting plate can be detached, the absorbent paper and the dust removal filter screen are convenient to replace, after the gas enters the adjusting box, the adjusting box automatically adjusts the gas outlet pressure according to the air pressure, the service life of the device can be further prolonged, and the use is convenient.
Drawings
FIG. 1 is a schematic sectional view of a piston type pressure reducing valve with a long service life according to the present invention;
FIG. 2 is a connection view of the trapezoidal plate and the pulling plate according to the present invention;
FIG. 3 is a schematic sectional front view of the trapezoidal plate of the present invention;
FIG. 4 is a schematic sectional front view of the regulating box of the present invention;
FIG. 5 is a schematic sectional front view of the upper pressing plate, the connecting plate and the lower pressing plate of the present invention;
FIG. 6 is a three-dimensional view of a web of the present invention;
fig. 7 is a schematic top view of the connecting plate of the present invention.
In the figure: 1. a hose; 2. an upper pressure plate; 3. a connecting plate; 4. pressing the plate downwards; 5. a rubber ring; 6. an adjusting box; 7. a valve body; 8. an air outlet pipe; 9. a first spring; 10. a sliding plate; 11. a slide bar; 12. a limiting plate; 13. a hand wheel; 14. a screw rod; 15. an air inlet pipe; 16. a second spring; 17. pulling a plate; 18. a pull ring; 19. a trapezoidal plate; 20. a tension spring; 21. a fixing plate; 22. a clamping block; 23. a card slot; 24. a chute; 25. a fixing rod; 26. an air outlet; 27. a bolt; 28. a first through hole; 29. absorbent paper; 30. a dust removal filter screen; 31. a second through hole; 32. a third through hole; 33. a thread groove; 34. a threaded hole; 35. and (7) a rubber pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Example one
Referring to fig. 1-7, a long service life's piston relief pressure valve, including valve body 7, the top fixedly connected with intake pipe 15 of valve body 7, one side of valve body 7 is provided with outlet duct 8 that is linked together, regulating box 6 that valve body 7 and fixedly connected with are linked together are run through to the bottom of intake pipe 15, the both sides inner wall sliding connection of valve body 7 has same sliding plate 10, the same first spring 9 of fixedly connected with between the top of sliding plate 10 and the bottom of regulating box 6, regulating box 6 has seted up a plurality of ventholes 26 near one side of outlet duct 8, the bottom of sliding plate 10 is provided with the adjusting part who is used for adjusting atmospheric pressure, the bottom of valve body 7 is provided with the protection component who is used for protecting regulating box 6, the top of intake pipe 15 is provided with the protection component who is used for preventing intake pipe 15 jam.
Example two
The embodiment is improved on the basis of the first embodiment: the adjusting part comprises a screw rod 14 rotatably connected to the bottom of the sliding plate 10, a bottom thread of the screw rod 14 penetrates through the valve body 7 and the hand wheel 13, the protecting part comprises two sliding rods 11 fixedly connected to the bottom of the sliding plate 10, the bottom of each sliding rod 11 penetrates through the valve body 7 and the limiting plate 12, a plurality of clamping grooves 23 are formed in the sliding rods 11, two fixing plates 21 are symmetrically arranged on the bottom of the valve body 7, clamping blocks 22 which are clamped with the clamping grooves 23 are formed in the fixing plates 21, one ends of the sliding rods 11 and the clamping blocks 22 are far away from the clamping plates 17, two second springs 16 are symmetrically arranged between the clamping plates 17 and the fixing plates 21, the protecting part comprises an upper pressing plate 2, a connecting plate 3 and a lower pressing plate 4, a third through hole 32 is formed in the lower pressing plate 4, the top of the air inlet pipe 15 is communicated with the third through hole 32, a second through hole 31 is formed in the connecting plate 3, a first through hole 28 is formed in the upper pressing plate 2, a hose 1 which is fixedly connected with the first through hole 28 is fixedly connected with the top of the upper pressing plate 2, the first through hole 28, the third through hole 32 is communicated with the second through hole 31.
EXAMPLE III
The embodiment is improved on the basis of the first embodiment: the top and the equal fixedly connected with rubber pad 35 in bottom of connecting plate 3, the fixed cover in outer wall of regulating box 6 is equipped with a plurality of rubber circles 5, a plurality of rubber circles 5 all contradict with the inner wall of valve body 7, the bottom fixedly connected with extension spring 20 of valve body 7, the bottom fixedly connected with trapezoidal plate 19 of extension spring 20, the bottom fixedly connected with pull ring 18 of trapezoidal plate 19, spout 24 has been seted up to the inside of trapezoidal plate 19, the bottom fixedly connected with of valve body 7 and the dead lever 25 of spout 24 looks adaptation, dead lever 25 and spout 24 sliding connection, the both sides of trapezoidal plate 19 are inconsistent with one side that two arm-tie 17 are close to each other respectively, the inside threaded connection of top board 2 has two bolts 27 that the symmetry set up, two screw holes 34 that the symmetry set up are seted up to the inside of connecting plate 3, two thread grooves 33 that the symmetry set up are seted up to the top of holding down plate 4, thread groove 33 and screw hole 34 all use with bolt 27 cooperation, the inside of second through hole 31 is provided with dust removal filter screen 30 and water absorption paper 29, the internal diameter of a plurality of venthole 26 is by last under to gradually increase.
The working principle is as follows: when the pneumatic pressure regulating box is used, gas enters the air inlet pipe 15 through the hose 1, the first through hole 28, the second through hole 31 and the third through hole 32, dust in the gas can be removed through the dust-removing filter screen 30, moisture in the gas can be removed through the absorbent paper 29, the connecting plate 3 can be taken out by screwing out the bolt 27, the absorbent paper 29 and the dust-removing filter screen 30 can be conveniently replaced, the service life of the pneumatic pressure regulating box can be prolonged, the filtered gas enters the regulating box 6 through the air inlet pipe 15, the regulating box 6 is pushed to vertically move downwards, the regulating box 6 extrudes the first spring 9 and enables the air outlet holes 26 with different inner diameters to be communicated with the air outlet pipe 8, the larger the air pressure is, the larger the downward movement amplitude of the regulating box 6 is, the smaller the inner diameter of the air outlet hole 26 is, the pressure can be reduced, the trapezoidal plate 19 is vertically pulled downwards, the trapezoidal plate 19 stretches the tension spring 20 and releases the state of the pull plate 17, the two pull plates 17 are close to each other under the elastic action of the second spring 16, the pull plate 17 drives the two clamping blocks 22 to be close to release the braking of the sliding rod 11, the hand wheel 13 is rotated, the screw rod 14, the downward movement of the regulating box 14, the first spring can be controlled, and the range of the vertical sliding plate 6 can be increased, and the range of the regulating box can be controlled by the resistance of the regulating box 6.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The piston type pressure reducing valve with long service life comprises a valve body (7) and is characterized in that an air inlet pipe (15) is fixedly connected to the top of the valve body (7), an air outlet pipe (8) communicated with the valve body (7) is arranged on one side of the valve body (7), the bottom of the air inlet pipe (15) penetrates through the valve body (7) and is fixedly connected with an adjusting box (6) communicated with the valve body, the inner walls of the two sides of the valve body (7) are slidably connected with a same sliding plate (10), a same first spring (9) is fixedly connected between the top of the sliding plate (10) and the bottom of the adjusting box (6), a plurality of air outlet holes (26) are formed in one side, close to the air outlet pipe (8), of the adjusting box (6), an adjusting component for adjusting air pressure is arranged at the bottom of the sliding plate (10), a protecting component for protecting the adjusting box (6) is arranged at the bottom of the valve body (7), and a component for preventing the air inlet pipe (15) from being blocked is arranged at the top of the air inlet pipe (15);
the protection assembly comprises two sliding rods (11) fixedly connected to the bottom of a sliding plate (10), the bottom of each sliding rod (11) penetrates through a valve body (7) in a sliding mode and is fixedly connected with a limiting plate (12), a plurality of clamping grooves (23) are formed in the sliding rods (11), two fixing plates (21) which are symmetrically arranged are fixedly connected to the bottom of the valve body (7), clamping blocks (22) clamped with the clamping grooves (23) penetrate through the fixing plates (21) in a sliding mode, one ends, far away from the sliding rods (11), of the clamping blocks (22) are fixedly connected with pull plates (17), and two second springs (16) which are symmetrically arranged are fixedly connected between the pull plates (17) and the fixing plates (21);
the bottom fixedly connected with extension spring (20) of valve body (7), the bottom fixedly connected with trapezoidal plate (19) of extension spring (20), the bottom fixedly connected with pull ring (18) of trapezoidal plate (19), spout (24) have been seted up to the inside of trapezoidal plate (19), the bottom fixedly connected with of valve body (7) and dead lever (25) of spout (24) looks adaptation, dead lever (25) and spout (24) sliding connection, the both sides of trapezoidal plate (19) are inconsistent with one side that two arm-tie (17) are close to each other respectively.
2. The piston type pressure reducing valve with long service life according to claim 1 is characterized in that the adjusting component comprises a screw rod (14) rotatably connected to the bottom of the sliding plate (10), and the bottom thread of the screw rod (14) penetrates through the valve body (7) and is fixedly connected with a hand wheel (13).
3. The piston type pressure reducing valve with the long service life according to claim 1, wherein the protection assembly comprises an upper pressure plate (2), a connecting plate (3) and a lower pressure plate (4), a third through hole (32) is formed in the lower pressure plate (4), the top of the air inlet pipe (15) is communicated with the third through hole (32), a second through hole (31) is formed in the connecting plate (3), a first through hole (28) is formed in the upper pressure plate (2), a hose (1) communicated with the first through hole (28) is fixedly connected to the top of the upper pressure plate (2), and the first through hole (28), the third through hole (32) and the second through hole (31) are communicated.
4. A long-life piston-type pressure reducing valve according to claim 3, characterized in that rubber pads (35) are fixedly attached to both the top and the bottom of the connecting plate (3).
5. A piston type pressure reducing valve with long service life according to claim 1, characterized in that a plurality of rubber rings (5) are fixedly sleeved on the outer wall of the adjusting box (6), and the plurality of rubber rings (5) are all abutted against the inner wall of the valve body (7).
6. The piston type pressure reducing valve with the long service life according to claim 3, wherein two symmetrically arranged bolts (27) are connected to the inner threads of the upper pressure plate (2), two symmetrically arranged threaded holes (34) are formed in the connecting plate (3), two symmetrically arranged threaded grooves (33) are formed in the top of the lower pressure plate (4), and the threaded grooves (33) and the threaded holes (34) are matched with the bolts (27) for use.
7. A long-life piston-type pressure reducing valve according to claim 3, characterized in that the second through-hole (31) is internally provided with a dust-removing screen (30) and a water-absorbing paper (29).
8. A long-life piston-type pressure reducing valve as claimed in claim 1, wherein the inner diameter of the plurality of outlet holes (26) is gradually increased from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110518583.7A CN113236833B (en) | 2021-05-12 | 2021-05-12 | Piston type pressure reducing valve with long service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110518583.7A CN113236833B (en) | 2021-05-12 | 2021-05-12 | Piston type pressure reducing valve with long service life |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113236833A CN113236833A (en) | 2021-08-10 |
| CN113236833B true CN113236833B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110518583.7A Active CN113236833B (en) | 2021-05-12 | 2021-05-12 | Piston type pressure reducing valve with long service life |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB458378A (en) * | 1934-09-26 | 1936-12-18 | Clifford Harry Armstrong | Improvements in and relating to valves |
| CN1908478A (en) * | 2005-08-05 | 2007-02-07 | 胡加江 | Pressure control valve |
| EP2025978A2 (en) * | 2007-08-17 | 2009-02-18 | Mann+Hummel Gmbh | Direction control valve for a windscreen cleaning device in a motor vehicle |
| CN207935498U (en) * | 2018-03-01 | 2018-10-02 | 江苏盐阜电站阀门辅机制造有限公司 | A kind of adjustable industrial boiler safety valve |
| CN209925709U (en) * | 2019-04-26 | 2020-01-10 | 上海梓优不锈钢设备制造有限公司 | Novel adjustable pressure breather valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704975A (en) * | 2016-04-22 | 2016-06-22 | 晋江市晋美日用品有限公司 | Electrical cabinet provided with electrical device fixing device and convenient to operate |
| CN108343767A (en) * | 2018-05-11 | 2018-07-31 | 钱伟 | Medical equipment electrical safety monitoring device based on Internet of things |
-
2021
- 2021-05-12 CN CN202110518583.7A patent/CN113236833B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB458378A (en) * | 1934-09-26 | 1936-12-18 | Clifford Harry Armstrong | Improvements in and relating to valves |
| CN1908478A (en) * | 2005-08-05 | 2007-02-07 | 胡加江 | Pressure control valve |
| EP2025978A2 (en) * | 2007-08-17 | 2009-02-18 | Mann+Hummel Gmbh | Direction control valve for a windscreen cleaning device in a motor vehicle |
| CN207935498U (en) * | 2018-03-01 | 2018-10-02 | 江苏盐阜电站阀门辅机制造有限公司 | A kind of adjustable industrial boiler safety valve |
| CN209925709U (en) * | 2019-04-26 | 2020-01-10 | 上海梓优不锈钢设备制造有限公司 | Novel adjustable pressure breather valve |
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| CN113236833A (en) | 2021-08-10 |
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