CN112682553A - Plug-in mounting type pressure reducing valve - Google Patents
Plug-in mounting type pressure reducing valve Download PDFInfo
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- CN112682553A CN112682553A CN202110118638.5A CN202110118638A CN112682553A CN 112682553 A CN112682553 A CN 112682553A CN 202110118638 A CN202110118638 A CN 202110118638A CN 112682553 A CN112682553 A CN 112682553A
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- pressure reducing
- reducing valve
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- spring
- valve core
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Abstract
The invention discloses a plug-in type pressure reducing valve which comprises a connecting pipe, a guide sleeve, a spring, a pressure reducing valve sleeve, a pressure reducing valve core and a screw cap, wherein the pressure reducing valve core is inserted into the inner side of the pressure reducing valve sleeve; compared with the prior art, the invention has the beneficial effects that: the structure of the pressure reducing valve is that the built-in pilot oil is output outwards and acts in the multi-way valve, so that the internal cavity of the multi-way valve is simple in structure and hydraulic control of the pilot oil is easy to realize; the pressure reducing valve is simple and compact in internal structure, convenient to install in various multi-way valves, small in occupied space and high in applicability.
Description
Technical Field
The invention relates to the technical field of pressure reducing valve structures, in particular to a cartridge type pressure reducing valve.
Background
The pressure reducing valve is a valve which reduces the inlet pressure to a certain required outlet pressure by regulation and enables the outlet pressure to be automatically kept stable by means of the energy of a medium, and a common pressure reducing valve is a valve which internally outputs built-in pilot oil to a pilot oil control oil passage in a multi-way valve, so that the internal cavity of the multi-way valve is complex in structure and high in cost, and cannot be suitable for a common multi-way valve. Accordingly, those skilled in the art have provided a cartridge type pressure reducing valve to solve the problems set forth in the background art described above.
Disclosure of Invention
The present invention is directed to a cartridge type pressure reducing valve to solve the problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme:
a plug-in type pressure reducing valve comprises a connecting pipe, a guide sleeve, a spring, a pressure reducing valve sleeve, a pressure reducing valve core and a screw cap, wherein the pressure reducing valve core is inserted into the inner side of the pressure reducing valve sleeve;
the pressure reducing valve is characterized in that a plurality of equally-divided valve sleeve oil inlet holes in the circumference are formed in the pressure reducing valve sleeve, an oil inlet groove is formed in the outer wall of the pressure reducing valve core corresponding to the right side of the valve sleeve oil inlet hole, a plurality of equally-divided valve core oil inlet holes in the circumference are formed in the right side of the pressure reducing valve core corresponding to the oil inlet groove, the valve core oil inlet hole penetrates through the side wall of the pressure equalizing valve core, a plurality of equally-divided valve sleeve oil drainage holes in the circumference are formed in the right side of the valve core oil inlet hole in the pressure reducing valve sleeve, a spring sleeve oil drainage hole is formed in the pressure reducing valve sleeve corresponding to the spring, a pressure equalizing groove is formed in the left side of the oil inlet groove in the outer wall of the pressure.
As a further scheme of the invention: the left end of the spring is provided with an adjusting washer, and the inner diameter of the adjusting washer is equal to the outer diameter of the spring positioning tube.
As a still further scheme of the invention: the sealing rings are arranged on the connection surface of the screw cap and the pressure reducing valve sleeve, the connection surface of the pressure reducing valve sleeve and the connecting pipe, the connection surface of the guide sleeve and the spring positioning pipe and the connection surface of the guide sleeve and the pressure reducing valve sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. the structure of the pressure reducing valve is that the built-in pilot oil is output outwards and acts in the multi-way valve, so that the internal cavity of the multi-way valve is simple in structure and hydraulic control of the pilot oil is easy to realize;
2. the pressure reducing valve has a simple and compact internal structure, is convenient to install in various multi-way valves, occupies a small space and has high applicability;
3. the pressure relief valve may adjust the pilot source pressure by changing the length of the adjustment washer or guide sleeve.
Drawings
Fig. 1 is a schematic structural diagram of a cartridge type pressure reducing valve.
Fig. 2 is a schematic structural diagram of the pressure reducing valve core.
In the figure: 1-connecting pipe, 2-guide sleeve, 3-spring, 4-adjusting washer, 5-pressure reducing valve sleeve, 6-pressure reducing valve core, 7-nut, 8-valve sleeve oil inlet hole, 9-valve sleeve oil drain hole, 10-spring sleeve oil drain hole, 11-sealing ring, 601-pressure equalizing groove, 602-oil inlet groove, 603-valve core oil inlet hole, 604-balance oil hole and 605-spring positioning pipe.
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 and 2, in an embodiment of the present invention, a cartridge type pressure reducing valve includes a connecting pipe 1, a guide sleeve 2, a spring 3, a pressure reducing valve housing 5, a pressure reducing valve core 6 and a nut 7, the pressure reducing valve core 6 is inserted inside the pressure reducing valve housing 5, the pressure reducing valve core 6 is provided with a spring positioning pipe 605 for positioning the spring 3, the spring positioning pipe 605 is sleeved with the spring 3, the left end of the spring 3 is provided with an adjusting washer 4 for adjusting a preset pressure of the spring 3 and capable of pushing the spring 3 to move, the right side of the spring 3 is provided with the guide sleeve 2 for positioning the pressure reducing valve core and also having a function of adjusting the pressure of the spring 3, the guide sleeve 2 is inserted between the spring positioning pipe 605 and the pressure reducing valve housing 5, the right end of the guide sleeve 2 is provided with a limit boss, the connecting pipe 1 is fixedly installed on the right side of the pressure reducing valve housing 5, the limit, the screw cap 7 is arranged at the left end of the pressure reducing valve sleeve 5, so that the left end of the pressure reducing valve sleeve 5 is completely closed;
the pressure reducing valve sleeve 5 is provided with a plurality of valve sleeve oil inlet holes 8 which are equally divided into a plurality of circumferences, the outer wall of the pressure reducing valve core 6 is provided with an oil inlet groove 602 corresponding to the right side of the valve sleeve oil inlet hole 8, the pressure reducing valve core 6 is provided with a plurality of valve core oil inlet holes 603 which are equally divided into a plurality of circumferences, the valve core oil inlet holes 603 penetrate through the side wall of the pressure equalizing valve core 6, hydraulic oil enters the pressure reducing valve core 6 after passing through the valve sleeve oil inlet holes 8, the oil inlet groove 602 and the valve core oil inlet holes 603 in sequence, the pressure reducing valve sleeve 5 is provided with a plurality of valve sleeve oil drainage holes, used for pressure relief valve oil drainage, a spring sleeve oil drainage hole 10 is arranged on the pressure relief valve sleeve 5 corresponding to the spring 3, a pressure equalizing groove 601 is arranged on the outer wall of the pressure relief valve core 6 corresponding to the left side of the oil inlet groove 602, the balance oil hole 604 is formed in the left wall of the pressure reducing valve core 6;
the connection surface of the screw cap 7 and the pressure reducing valve sleeve 5, the connection surface of the pressure reducing valve sleeve 5 and the connecting pipe 1, the connection surface of the guide sleeve 2 and the spring positioning pipe 605 and the connection surface of the guide sleeve 2 and the pressure reducing valve sleeve 5 are all provided with sealing rings 11.
The working principle of the invention is as follows:
the invention relates to a plug-in type pressure reducing valve, the oil source of the pressure reducing valve comes from the high-pressure oil source of the multi-way valve of the hydraulic system, the hydraulic oil enters the valve housing from the valve housing oil inlet 8 on the pressure reducing valve housing 5, then enters the pressure reducing valve core 6 after passing through the oil inlet groove 602 and the valve core oil inlet 603 in sequence, the left end space of the pressure reducing valve housing 5 is closed, the hydraulic oil is output from the right end of the pressure reducing valve core 6, because the pressure intensity of the hydraulic oil on the left and right end surfaces of the pressure reducing valve core 6 is equal, but the area of the left end surface of the pressure reducing valve core 6 is larger than that of the right end surface, the pressure oil generates a right acting force on the pressure reducing valve core 6, the pressure reducing valve core 6 moves towards the right side and compresses the spring 3 until the acting force of the spring 3 and the pressure oil on the pressure reducing valve core 6 is balanced, the hydraulic oil, the pressure reducing valve is internally drained through a valve sleeve oil drainage hole 9, and a spring sleeve oil drainage hole 10 is further formed in the pressure reducing valve sleeve 5.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. A plug-in type pressure reducing valve comprises a connecting pipe (1), a guide sleeve (2), a spring (3), a pressure reducing valve sleeve (5), a pressure reducing valve core (6) and a screw cap (7), it is characterized in that the pressure reducing valve core (6) is inserted inside the pressure reducing valve sleeve (5), a spring positioning pipe (605) is arranged on the pressure reducing valve core (6), a spring (3) is sleeved on the spring positioning pipe (605), a guide sleeve (2) is arranged on the right side of the spring (3), the guide sleeve (2) is inserted between the spring positioning pipe (605) and the pressure reducing valve sleeve (5), a limit boss is arranged at the right end of the guide sleeve (2), the connecting pipe (1) is fixedly arranged on the right side of the pressure reducing valve sleeve (5), the limiting boss at the right end of the guide sleeve (2) is positioned between the connecting pipe (1) and the right wall of the pressure reducing valve sleeve (5), and the screw cap (7) is arranged at the left end of the pressure reducing valve sleeve (5);
the pressure reducing valve comprises a pressure reducing valve sleeve (5), a pressure reducing valve core (6), a pressure equalizing valve core (601), a pressure equalizing valve sleeve (601), a pressure equalizing valve core (601), a valve sleeve oil inlet hole (602), a valve core oil inlet hole (603), a spring sleeve oil drain hole (10), a spring sleeve oil drain hole (3), a pressure equalizing groove (601), a valve sleeve oil drain hole (602), a valve sleeve oil drain hole and a spring sleeve oil drain hole, wherein the pressure equalizing valve sleeve oil inlet hole (8) is formed in the pressure reducing valve core (5) in a plurality of equal divisions mode, the oil inlet hole (8) is formed in the outer wall of the pressure reducing valve core (6) corresponding to the right side of the valve sleeve oil inlet hole (8), the valve core oil drain hole (603) is formed in the right side, and a balance oil hole (604) is formed in the left wall of the pressure reducing valve core (6).
2. A cartridge type pressure reducing valve according to claim 1, characterized in that the left end of the spring (3) is provided with an adjusting washer (4), the inner diameter of the adjusting washer (4) being equal to the outer diameter of the spring positioning tube (605).
3. A cartridge type pressure reducing valve according to claim 1, wherein the sealing rings (11) are arranged on the connection surface of the nut (7) and the pressure reducing valve sleeve (5), the connection surface of the pressure reducing valve sleeve (5) and the connecting pipe (1), the connection surface of the guide sleeve (2) and the spring positioning pipe (605) and the connection surface of the guide sleeve (2) and the pressure reducing valve sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118638.5A CN112682553A (en) | 2021-01-28 | 2021-01-28 | Plug-in mounting type pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118638.5A CN112682553A (en) | 2021-01-28 | 2021-01-28 | Plug-in mounting type pressure reducing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112682553A true CN112682553A (en) | 2021-04-20 |
Family
ID=75459430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110118638.5A Pending CN112682553A (en) | 2021-01-28 | 2021-01-28 | Plug-in mounting type pressure reducing valve |
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| Country | Link |
|---|---|
| CN (1) | CN112682553A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351220A (en) * | 2023-03-15 | 2023-06-30 | 芯朋半导体科技(如东)有限公司 | Welding waste gas treatment equipment and treatment method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416076A1 (en) * | 1994-05-06 | 1995-11-09 | Schmidt & Lenhardt Gmbh & Co | Pressure reducing valve for water hose under pressure |
| CN203856791U (en) * | 2014-04-30 | 2014-10-01 | 王敏 | Safety valve used for multi-way valve |
| CN204344992U (en) * | 2014-10-17 | 2015-05-20 | 徐工集团工程机械股份有限公司 | Load sensing multi-way valve, load sensitive system and excavator |
| CN206159579U (en) * | 2016-10-28 | 2017-05-10 | 南京六合煤矿机械有限责任公司 | Pilot -operated type relief valve |
-
2021
- 2021-01-28 CN CN202110118638.5A patent/CN112682553A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4416076A1 (en) * | 1994-05-06 | 1995-11-09 | Schmidt & Lenhardt Gmbh & Co | Pressure reducing valve for water hose under pressure |
| CN203856791U (en) * | 2014-04-30 | 2014-10-01 | 王敏 | Safety valve used for multi-way valve |
| CN204344992U (en) * | 2014-10-17 | 2015-05-20 | 徐工集团工程机械股份有限公司 | Load sensing multi-way valve, load sensitive system and excavator |
| CN206159579U (en) * | 2016-10-28 | 2017-05-10 | 南京六合煤矿机械有限责任公司 | Pilot -operated type relief valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351220A (en) * | 2023-03-15 | 2023-06-30 | 芯朋半导体科技(如东)有限公司 | Welding waste gas treatment equipment and treatment method |
| CN116351220B (en) * | 2023-03-15 | 2023-09-12 | 芯朋半导体科技(如东)有限公司 | Welding waste gas treatment equipment and treatment method |
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