CN110966277A - Overflow valve - Google Patents
Overflow valve Download PDFInfo
- Publication number
- CN110966277A CN110966277A CN201811157213.XA CN201811157213A CN110966277A CN 110966277 A CN110966277 A CN 110966277A CN 201811157213 A CN201811157213 A CN 201811157213A CN 110966277 A CN110966277 A CN 110966277A
- Authority
- CN
- China
- Prior art keywords
- valve
- pilot valve
- pilot
- oil duct
- pressure regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/0401—Valve members; Fluid interconnections therefor
- F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
The invention provides an overflow valve which comprises a pressure regulating nut, a regulating rod, a sealing ring pilot valve, a main valve, an oil duct and a valve cavity, wherein the pressure regulating nut is in threaded connection with the regulating rod and fixedly connected with the pilot valve through the sealing ring, the main valve is perpendicular to the pilot valve and forms a loop with the pilot valve through the oil duct, and the valve cavity is arranged on two sides of the main valve. The invention integrates the pilot valve and the main valve body into a whole, has compact structure, reduces the connecting sealing position, reduces the failure rate of the system, improves the working reliability, is convenient to install, maintain and use, and ensures that the single-cylinder hydraulic system is more suitable for popularization and application.
Description
Technical Field
The invention relates to a hydraulic valve, in particular to an overflow valve.
Background
The hydraulic transmission technology is one of the fastest-developing technologies in the mechanical industry, and is widely applied. The application of the single-cylinder hydraulic system is wide in range and large in quantity, and the use industry is numerous, and the single-cylinder hydraulic system accounts for about 30% of the whole hydraulic transmission. An existing single-cylinder hydraulic system generally comprises an oil pump, an oil cylinder, an electromagnetic directional valve, a one-way valve, an overflow valve and a bottom plate (commonly called an oil path block), wherein the electromagnetic directional valve, the one-way valve and the overflow valve are arranged on the bottom plate, and the oil pump and the oil cylinder are communicated with the oil path block. Because the check valve and the overflow valve are usually the finished products purchased in the market, and the bottom plate needs to be equipped and processed by each user, the users feel inconvenient; although the principles adopted by all overflow valves are the same, the overflow valves have different shapes and oil paths, are difficult to process and long in manufacturing period, and are scrapped due to carelessness, so that the popularization and the application of a hydraulic system are hindered to a certain extent.
Disclosure of Invention
The invention aims to solve the technical problems that the existing overflow valve has different shapes and oil ways, is difficult to process and long in manufacturing period, and can be scrapped due to carelessness. In order to solve the technical problem, the invention provides an overflow valve which comprises a pressure regulating nut, a regulating rod, a sealing ring, a pilot valve, a main valve, an oil duct and a valve cavity, wherein the pressure regulating nut is in threaded connection with the regulating rod and fixedly connected with the pilot valve by penetrating through the sealing ring, the main valve is perpendicular to the pilot valve and forms a loop with the pilot valve through the oil duct, and the valve cavity is arranged on two sides of the main valve.
Further, the width range of the oil passage is 5mm-10 mm.
Furthermore, the pressure regulating nut is in reverse threaded connection with the regulating rod.
After the technical scheme is adopted, the single-cylinder hydraulic system integrates the pilot valve and the main valve body, has a compact structure, reduces the connecting sealing position, reduces the fault rate of the system, improves the working reliability, is convenient to install, maintain and use, and is more suitable for popularization and application.
Drawings
Fig. 1 is a schematic structural diagram of an overflow valve of the present invention.
Reference numerals: 1-pressure regulating nut, 2-regulating rod, 3-sealing ring, 4-pilot valve, 5-main valve, 6-oil duct and 7-valve cavity.
Detailed Description
The following detailed description of embodiments of the present application will be described in conjunction with the accompanying drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
As shown in fig. 1, the invention relates to an overflow valve, which comprises a pressure regulating nut 1, a regulating rod 2, a seal ring 3, a pilot valve 4, a main valve 5, an oil duct 6 and a valve cavity 7, wherein the pressure regulating nut 1 is in reverse threaded connection with the regulating rod 2 and fixedly connected with the pilot valve 4 by penetrating through the seal ring 3, the main valve 5 is perpendicular to the pilot valve 4 and forms a loop with the pilot valve 4 through the oil duct 6, the width range of the oil duct 6 is 5mm-10mm, and the valve cavity 7 is arranged at two sides of the main valve 5. Compared with the prior art, the overflow valve integrates the pilot valve and the main valve body, has compact structure, reduces the joint sealing position, reduces the fault rate of the system, improves the working reliability, is convenient to install, maintain and use, and ensures that the single-cylinder hydraulic system is more suitable for popularization and application.
The present invention is not intended to be limited to the particular embodiments shown and described, but rather, the invention is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (3)
1. An overflow valve characterized in that: this overflow valve comprises pressure regulating nut (1), regulation pole (2), sealing washer (3) pilot valve (4), main valve (5), oil duct (6) and valve pocket (7), pressure regulating nut (1) and regulation pole (2) threaded connection to pass sealing washer (3) and pilot valve (4) fixed connection, main valve (5) set up with pilot valve (4) are perpendicular, and form the return circuit through oil duct (6) and pilot valve (4), valve pocket (7) set up in main valve (5) both sides.
2. A relief valve according to claim 1, characterized in that: the width range of the oil duct (6) is 5mm-10 mm.
3. A relief valve according to claim 1, characterized in that: the pressure regulating nut (1) is connected with the regulating rod (2) through reverse threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157213.XA CN110966277A (en) | 2018-09-30 | 2018-09-30 | Overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811157213.XA CN110966277A (en) | 2018-09-30 | 2018-09-30 | Overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110966277A true CN110966277A (en) | 2020-04-07 |
Family
ID=70028958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811157213.XA Withdrawn CN110966277A (en) | 2018-09-30 | 2018-09-30 | Overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110966277A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321065A (en) * | 2021-12-28 | 2022-04-12 | 靖江市新博液压件有限公司 | Improved structure of pilot one-way overflow valve |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109329A (en) * | 1985-12-26 | 1987-08-12 | 庄凤龄 | Pilot operated compound relief valve |
| CN2303962Y (en) * | 1997-03-04 | 1999-01-13 | 中南工业大学 | Jamming-proof valve for hydraulic impact revolving mechanism |
| CN200982450Y (en) * | 2006-12-01 | 2007-11-28 | 华中科技大学 | Middle and high pressure pilot type water pressure relief valve |
| CN103122881A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Pilot reducing valve |
| CN103122884A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot overflow valve |
| CN203441853U (en) * | 2013-09-04 | 2014-02-19 | 安徽理工大学 | Pilot-operated type water pressure overflow valve of novel structure |
| CN104265716A (en) * | 2014-10-23 | 2015-01-07 | 西华大学 | Ultrahigh pressure pilot operated relief valve |
| CN204344557U (en) * | 2014-10-23 | 2015-05-20 | 西华大学 | A kind of ultrahigh pressure pilot operated compound relief valve |
-
2018
- 2018-09-30 CN CN201811157213.XA patent/CN110966277A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109329A (en) * | 1985-12-26 | 1987-08-12 | 庄凤龄 | Pilot operated compound relief valve |
| CN2303962Y (en) * | 1997-03-04 | 1999-01-13 | 中南工业大学 | Jamming-proof valve for hydraulic impact revolving mechanism |
| CN200982450Y (en) * | 2006-12-01 | 2007-11-28 | 华中科技大学 | Middle and high pressure pilot type water pressure relief valve |
| CN103122881A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Pilot reducing valve |
| CN103122884A (en) * | 2011-11-18 | 2013-05-29 | 广西柳工机械股份有限公司 | Adjustable pilot overflow valve |
| CN203441853U (en) * | 2013-09-04 | 2014-02-19 | 安徽理工大学 | Pilot-operated type water pressure overflow valve of novel structure |
| CN104265716A (en) * | 2014-10-23 | 2015-01-07 | 西华大学 | Ultrahigh pressure pilot operated relief valve |
| CN204344557U (en) * | 2014-10-23 | 2015-05-20 | 西华大学 | A kind of ultrahigh pressure pilot operated compound relief valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321065A (en) * | 2021-12-28 | 2022-04-12 | 靖江市新博液压件有限公司 | Improved structure of pilot one-way overflow valve |
| CN114321065B (en) * | 2021-12-28 | 2022-12-02 | 靖江市新博液压件有限公司 | Improved structure of pilot one-way overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200407 |