CN216951855U - Pressure reducing valve with two-stage pressure reducing structure - Google Patents
Pressure reducing valve with two-stage pressure reducing structure Download PDFInfo
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- CN216951855U CN216951855U CN202220645126.4U CN202220645126U CN216951855U CN 216951855 U CN216951855 U CN 216951855U CN 202220645126 U CN202220645126 U CN 202220645126U CN 216951855 U CN216951855 U CN 216951855U
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- pressure reducing
- valve core
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model discloses a pressure reducing valve with a two-stage pressure reducing structure, which comprises a valve body, wherein one end of the valve body is provided with an inlet joint, the bottoms of a first valve core and a second valve core are respectively provided with a spring, the tops of the inner walls of a first mounting groove and a second mounting groove are respectively and fixedly connected with a third rubber ring, the tops of the first valve core and the second valve core are respectively and fixedly connected with a second rubber ring, the outer walls of the bottoms of the first valve core and the second valve core are respectively and fixedly connected with a first rubber ring, and a rubber sleeve is fixedly connected between a U-shaped push rod and the inner wall of the valve body; according to the technical scheme provided by the utility model, the rubber sleeve, the first rubber ring, the second rubber ring and the third rubber ring are arranged, the first rubber ring can seal the position between the valve core and the inner installation groove, the top of the valve core is in a circular truncated cone shape, the second rubber ring and the third rubber ring are utilized under the elastic force of the spring to ensure the sealing performance of the opening, so that air leakage is prevented, and the rubber sleeve is utilized to seal the hole at the adjusting position so as to prevent air leakage at the adjusting position.
Description
Technical Field
The utility model relates to the technical field of pressure reducing valves, in particular to a pressure reducing valve with a two-stage pressure reducing structure.
Background
The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by regulation and ensures that the outlet pressure is automatically kept stable by depending on the energy of a medium.
The prior art has the following defects or problems:
when the existing pressure reducing valve is used, the air tightness is poor due to aging after long-time use, the phenomenon of air leakage from an adjusting position occurs, and in the using process, a valve core is easy to wear, so that the moving precision of the valve core is poor, and the valve core is easy to clamp.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressure reducing valve with a two-stage pressure reducing structure aiming at the defects in the prior art so as to solve the problems in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme:
a pressure reducing valve with a two-stage pressure reducing structure comprises a valve body, wherein one end of the valve body is provided with an inlet connector, the outer wall of the valve body is respectively provided with a first outlet, a second outlet and a third outlet, one side of the outer wall of the valve body is fixedly provided with a pressure valve, the interior of the valve body is respectively provided with a first mounting groove and a second mounting groove, the interior of the first mounting groove and the interior of the second mounting groove are respectively connected with a first valve core and a second valve core in a sliding manner, springs are respectively arranged at the bottoms of the first valve core and the second valve core, U-shaped push rods are arranged at the bottoms of the springs, third rubber rings are respectively fixedly connected at the tops of the inner walls of the first mounting groove and the second mounting groove, second rubber rings are respectively fixedly connected at the tops of the first valve core and the second valve core, first rubber rings are respectively fixedly connected at the outer walls of the bottoms of the first valve core and the second valve core, and rubber sleeves are fixedly connected between the U-shaped push rods and the inner wall of the valve body, a first air hole, a second air hole, a third air hole and a fourth air hole are formed in the valve body respectively.
Optionally, the bottom of the valve body is rotatably connected with an adjusting knob, a screw rod is installed at the top of the adjusting knob, and the screw rod at the top of the adjusting knob is meshed with the axle center at the bottom of the U-shaped push rod.
Optionally, one end of the first air hole is arranged inside the first mounting groove, and the other end of the first air hole is matched with the first outlet.
Optionally, one end of the second air hole is arranged inside the second mounting groove, and the other end of the second air hole is matched with the second outlet.
Optionally, one end of the third air hole is arranged inside the second mounting groove, and the other end of the third air hole is matched with the third outlet.
Optionally, one end of the fourth air hole is arranged inside the first mounting groove, and the other end of the fourth air hole is arranged inside the second mounting groove.
Optionally, valve sleeves are fixedly mounted inside the first mounting groove and the second mounting groove, the outer walls of the bottoms of the first valve core and the second valve core are rotatably connected with rollers, the rollers are rotatably connected to the inner wall of the valve sleeves, the outer wall of one end of the first valve core is rotatably connected with balls, and the balls are slidably connected to the inner wall of the first mounting groove.
Compared with the prior art, the utility model provides a pressure reducing valve with a two-stage pressure reducing structure, which has the following beneficial effects:
1. according to the utility model, the rubber sleeve, the first rubber ring, the second rubber ring and the third rubber ring are arranged, the first rubber ring can seal the position between the valve core and the internal installation groove, the top of the valve core is in a round table shape, the second rubber ring and the third rubber ring are utilized under the elastic force of the spring to ensure the sealing performance of the opening, so that air leakage is prevented, and the rubber sleeve is utilized to seal the hole at the adjusting position, so that air leakage at the adjusting position is prevented;
2. the valve sleeve, the roller and the ball are arranged, the valve core can be limited in moving position by the valve sleeve, and the roller and the ball move, so that the friction force of the valve sleeve and the mounting groove on the outer wall of the valve core is reduced, the abrasion of the valve core is reduced, the service life is prolonged, and the valve core is prevented from being clamped.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side sectional view of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
fig. 4 is a partially enlarged view of the point B in fig. 2 according to the present invention.
In the figure: 1. a valve body; 2. an inlet fitting; 3. a first outlet; 4. a second outlet; 5. a third outlet; 6. a pressure valve; 7. a first mounting groove; 8. a second mounting groove; 9. a first valve spool; 10. a second valve core; 11. a valve housing; 12. a spring; 13. a rubber sleeve; 14. a U-shaped push rod; 15. a first air hole; 16. a second air hole; 17. a third air hole; 18. a fourth air hole; 19. a roller; 20. a ball bearing; 21. a first rubber ring; 22. a second rubber ring; 23. a third rubber ring; 24. and adjusting a knob.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, in this embodiment: a pressure reducing valve with a two-stage pressure reducing structure comprises a valve body 1, wherein one end of the valve body 1 is provided with an inlet connector 2, the outer wall of the valve body 1 is respectively provided with a first outlet 3, a second outlet 4 and a third outlet 5, one side of the outer wall of the valve body 1 is fixedly provided with a pressure valve 6, the interior of the valve body 1 is respectively provided with a first installation groove 7 and a second installation groove 8, the interior of the first installation groove 7 and the interior of the second installation groove 8 are respectively connected with a first valve core 9 and a second valve core 10 in a sliding manner, the bottoms of the first valve core 9 and the second valve core 10 are respectively provided with a spring 12, the bottom of the spring 12 is provided with a U-shaped push rod 14, the tops of the inner walls of the first installation groove 7 and the second installation groove 8 are respectively and fixedly connected with a third rubber ring 23, the tops of the first valve core 9 and the second valve core 10 are respectively and fixedly connected with a second rubber ring 22, the outer walls of the bottoms of the first valve core 9 and the second valve core 10 are respectively and fixedly connected with a first rubber ring 21, a rubber sleeve 13 is fixedly connected between the U-shaped push rod 14 and the inner wall of the valve body 1, a first air hole 15, a second air hole 16, a third air hole 17 and a fourth air hole 18 are respectively arranged in the valve body 1; the inlet connector 2 is provided to install a pressure reducing valve to an output end of a gas tank or the like, the first outlet 3, the second outlet 4 and the third outlet 5 are provided to connect an external gas transmission device such as an oxygen hose or the like, the pressure valve 6 is provided to measure an internal pressure of a tank body, the first mounting groove 7 and the second mounting groove 8 are provided to mount the first valve element 9 and the second valve element 10, the spring 12 is provided to support the first valve element 9 and the second valve element 10 and to contract the first valve element 9 and the second valve element 10 against an elastic force of the spring 12 for pressure reduction, the U-shaped push rod 14 is provided to push the spring 12 to adjust a compression amount of the spring 12, the first rubber ring 21, the second rubber ring 22, the third rubber ring 23 and the rubber sleeve 13 are provided to seal the inside of the pressure reducing valve, and the first air hole 15, the second air hole 16, the third air hole 5, the second air hole 16, the third air hole 8, and the pressure reducing valve are provided to reduce pressure, The third air hole 17 is used for communicating the first outlet 3, the second outlet 4 and the third outlet 5 respectively, so that gas and the like can be discharged from the outlets, wherein the rubber sleeve 13 is supported by elastic rubber and can be folded along with the extension of the U-shaped push rod 14.
The bottom of the valve body 1 is rotatably connected with an adjusting knob 24, the top of the adjusting knob 24 is provided with a screw, and the screw at the top of the adjusting knob 24 is meshed with the axle center at the bottom of the U-shaped push rod 14; the adjusting knob 24 is arranged to rotate the adjusting knob 24, so that the screw rod at the top of the adjusting knob 24 is meshed with the U-shaped push rod 14, and the U-shaped push rod 14 moves to push one end of the spring 12 to adjust the compression amount of the spring 12.
One end of the first air hole 15 is arranged in the first mounting groove 7, and the other end of the first air hole 15 is matched with the first outlet 3; when the pressure overcomes the spring force of the spring 12 at the bottom of the first valve spool 9, the first valve spool 9 opens and gas etc. is discharged from the first gas hole 15 through the first outlet 3.
One end of a second air hole 16 is arranged in the second mounting groove 8, and the other end of the second air hole 16 is matched with the second outlet 4; when the first outlet 3 is closed and the pressure overcomes the spring 12 at the bottom of the first valve spool 9 and the second valve spool 10, respectively, gas and the like is discharged from the second gas hole 16 through the second outlet 4.
One end of a third air hole 17 is arranged in the second mounting groove 8, and the other end of the third air hole 17 is matched with the third outlet 5; when the first outlet 3 and the second outlet 4 are closed and the pressure overcomes the springs 12 at the bottoms of the first valve core 9 and the second valve core 10 respectively, the springs 12 at the bottoms of the two valve cores are compressed by a proper amount by adjusting the adjusting knob 24, and then the gas and the like are exhausted from the third air hole 17 and the third outlet 5.
One end of a fourth air hole 18 is arranged in the first mounting groove 7, and the other end of the fourth air hole 18 is arranged in the second mounting groove 8; through setting up fourth gas pocket 18 for two mounting grooves communicate each other, and then realize the two-stage decompression.
The working principle and the using process of the utility model are as follows: when in use, the pressure reducing valve is arranged at positions such as a gas tank by using the inlet connector 2, then the outlet is communicated as required, when the pressure overcomes the elasticity of the spring 12 at the bottom of the first valve core 9, the first valve core 9 is opened, the gas and the like are discharged from the first air hole 15 through the first outlet 3, then when the first outlet 3 is closed, and the pressure overcomes the springs 12 at the bottoms of the first valve core 9 and the second valve core 10 respectively, the gas and the like are discharged from the second air hole 16 through the second outlet 4, then when the first outlet 3 and the second outlet 4 are both closed, and the pressure overcomes the springs 12 at the bottoms of the first valve core 9 and the second valve core 10 respectively, the proper amount of compression regulated by the springs 12 at the bottoms of the two valve cores is adjusted by regulating the regulating knob 24, then the gas and the like are discharged from the third air hole 17 through the third outlet 5, and then in the use process, the rubber sleeve 13, the first rubber ring 21, the second rubber ring 22 and the third rubber ring 23 seal the interior of the pressure reducing valve, the sealing between the valve port and the regulating part can be improved, and the valve core moves through the roller 19 and the ball 20, so that the abrasion of the valve core can be reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A pressure reducing valve having a two-stage pressure reducing structure, characterized in that: the pressure regulating valve comprises a valve body (1), wherein an inlet connector (2) is arranged at one end of the valve body (1), a first outlet (3), a second outlet (4) and a third outlet (5) are respectively arranged on the outer wall of the valve body (1), a pressure valve (6) is fixedly installed on one side of the outer wall of the valve body (1), a first installation groove (7) and a second installation groove (8) are respectively arranged in the valve body (1), a first valve core (9) and a second valve core (10) are respectively connected in the first installation groove (7) and the second installation groove (8) in a sliding manner, springs (12) are respectively arranged at the bottoms of the first valve core (9) and the second valve core (10), U-shaped push rods (14) are arranged at the bottoms of the springs (12), third rubber rings (23) are respectively fixedly connected to the tops of the inner walls of the first installation groove (7) and the second installation groove (8), and second rubber rings (22) are respectively fixedly connected to the tops of the first valve core (9) and the second valve core (10), the valve is characterized in that the outer walls of the bottoms of the first valve core (9) and the second valve core (10) are fixedly connected with a first rubber ring (21), a rubber sleeve (13) is fixedly connected between the U-shaped push rod (14) and the inner wall of the valve body (1), and a first air hole (15), a second air hole (16), a third air hole (17) and a fourth air hole (18) are respectively formed in the valve body (1).
2. The pressure reducing valve having a two-stage pressure reducing structure according to claim 1, wherein: the bottom of the valve body (1) is rotatably connected with an adjusting knob (24), a screw rod is installed at the top of the adjusting knob (24), and the screw rod at the top of the adjusting knob (24) is meshed with the axle center at the bottom of the U-shaped push rod (14).
3. The pressure reducing valve having a two-stage pressure reducing structure according to claim 1, wherein: first gas pocket (15) one end sets up inside first mounting groove (7), first gas pocket (15) other end and first export (3) looks adaptation.
4. The pressure reducing valve having a two-stage pressure reducing structure according to claim 1, wherein: one end of the second air hole (16) is arranged in the second mounting groove (8), and the other end of the second air hole (16) is matched with the second outlet (4).
5. The pressure reducing valve having a two-stage pressure reducing structure according to claim 1, wherein: one end of the third air hole (17) is arranged in the second mounting groove (8), and the other end of the third air hole (17) is matched with the third outlet (5).
6. The pressure reducing valve having a two-stage pressure reducing structure according to claim 1, wherein: one end of the fourth air hole (18) is arranged in the first mounting groove (7), and the other end of the fourth air hole (18) is arranged in the second mounting groove (8).
7. The pressure reducing valve having a two-stage pressure reducing structure according to claim 1, wherein: the valve sleeve (11) is fixedly mounted inside the first mounting groove (7) and the second mounting groove (8), rollers (19) are rotatably connected to the outer walls of the bottoms of the first valve core (9) and the second valve core (10), the rollers (19) are rotatably connected to the inner wall of the valve sleeve (11), balls (20) are rotatably connected to the outer wall of one end of the first valve core (9), and the balls (20) are slidably connected to the inner wall of the first mounting groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220645126.4U CN216951855U (en) | 2022-03-22 | 2022-03-22 | Pressure reducing valve with two-stage pressure reducing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220645126.4U CN216951855U (en) | 2022-03-22 | 2022-03-22 | Pressure reducing valve with two-stage pressure reducing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216951855U true CN216951855U (en) | 2022-07-12 |
Family
ID=82296814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220645126.4U Active CN216951855U (en) | 2022-03-22 | 2022-03-22 | Pressure reducing valve with two-stage pressure reducing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216951855U (en) |
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2022
- 2022-03-22 CN CN202220645126.4U patent/CN216951855U/en active Active
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