CN202789803U - Multistage electromagnetic overflow valve - Google Patents
Multistage electromagnetic overflow valve Download PDFInfo
- Publication number
- CN202789803U CN202789803U CN 201220405744 CN201220405744U CN202789803U CN 202789803 U CN202789803 U CN 202789803U CN 201220405744 CN201220405744 CN 201220405744 CN 201220405744 U CN201220405744 U CN 201220405744U CN 202789803 U CN202789803 U CN 202789803U
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- valve
- multistage
- pilot
- pilot valve
- electromagnetic overflow
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- Expired - Fee Related
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Abstract
The utility model discloses a multistage electromagnetic overflow valve which is used for solving the problem of multistage pressure control. The multistage electromagnetic overflow valve comprises a base valve, pilot valves and a three-position four-way solenoid valve. The multistage electromagnetic overflow valve is characterized in that the three pilot valves are installed at an upper end surface of the base valve in a paratactic mode and arranged in a central symmetry mode. The three pilot valves are fixed with each other in a connecting mode through bolts and sealing rings. The three-position four-way solenoid valve is installed at the middle position of the upper end face of the middle pilot valve. Multiple control pressure is formed by the multistage electromagnetic overflow valve, and design of hydraulic control loop is simplified. The multistage electromagnetic overflow valve is especially applicable to a hydraulic control system with multistage pressure control.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to a kind of electromagnetic relief valve.
Background technique
Electromagnetic relief valve is used in hydraulic control system often, is mainly used in pressure control, is particularly useful for the high-pressure high-flow occasion.Its structure generally all is comprised of bottom valve, a pilot valve and a solenoid valve, this is a kind of common pilot operated electromagnetic relief valve structure, problem is that this electromagnetic relief valve can only form a kind of setting pressure, can't realize the pilot pressure of multiple different brackets, when occurring various control pressure in the hydraulic control system, existing product just can not satisfy supporting demand, is badly in need of people and removes research, a kind of multistage electromagnetic relief valve of exploitation, to satisfy the demand of hydraulic control system design.
Summary of the invention
The purpose of this utility model is that a kind of multistage electromagnetic relief valve will be provided, and satisfies the system demand without corresponding auxiliary products when the solution hydraulic control system needs various control pressure.This multistage electromagnetic relief valve can adopt following technological scheme to implement: it comprises bottom valve 1, pilot valve, three position four-way electromagnetic valve 5, wherein pilot valve has three and is respectively pilot valve A2, pilot valve B3, pilot valve C4, structure is identical, pilot valve A2 is contained on bottom valve 1 upper-end surface, pilot valve B3, pilot valve C4 be contained in respectively pilot valve A before, be symmetric arrays on the trailing flank, be connected and fixed by screw and seal ring each other that (that is three pilot valves are contained in the arrangement that is centrosymmetric on the bottom valve upper-end surface side by side, be connected and fixed by screw and seal ring each other), three position four-way electromagnetic valve 5 is contained on the neutral position of pilot valve A2 upper-end surface, to consist of multistage electromagnetic relief valve.
Above-described bottom valve, solenoid valve, pilot valve are standard product, and its structural type and operating principle etc. are not commented here.
Compare with prior art (being the single-stage electromagnetic relief valve) according to the multistage electromagnetic relief valve that the said structure form design becomes, its main feature is: general single-stage electromagnetic relief valve only has a kind of pilot pressure, and multistage electromagnetic relief valve can form three kinds of pilot pressures, simplified the design of hydraulic control circuit, dwindled volume, reduce cost, be widely used in hydraulic control system, particularly the control occasion of multistage pressure.
Description of drawings
Fig. 1, multistage electromagnetic relief valve structural representation.
The plan view of Fig. 2, multistage electromagnetic relief valve.
Embodiment
Below in conjunction with drawings and Examples the utility model is done further narration.
As shown in Figure 1 and Figure 2: multistage electromagnetic relief valve comprises bottom valve 1, pilot valve, three position four-way electromagnetic valve 5, wherein pilot valve has three and is respectively pilot valve A2, pilot valve B3, pilot valve C4, structure is identical, pilot valve A2 is contained on bottom valve 1 upper-end surface, pilot valve B3, pilot valve C4 are contained in respectively on the forward and backward side of pilot valve A2 and are symmetric arrays, be connected and fixed by screw and seal ring each other, three position four-way electromagnetic valve 5 is contained on the neutral position of pilot valve A2 upper-end surface.When working according to the multistage electromagnetic relief valve of said structure composition, when three position four-way electromagnetic valve is in the meta state, pilot valve A is set in maximum pressure, after a electromagnet energising on the three position four-way electromagnetic valve, the pressure of multistage electromagnetic relief valve is the setting pressure of pilot valve B, and after the energising of b electromagnet, the pressure of multistage electromagnetic relief valve is the setting pressure of pilot valve C on the same three position four-way electromagnetic valve, form like this three kinds of pilot pressures, can realize multilevel control.
Claims (1)
1. multistage electromagnetic relief valve, it is characterized in that this multistage electromagnetic relief valve comprises bottom valve (1), pilot valve, three position four-way electromagnetic valve (5), wherein pilot valve has three and is respectively pilot valve A(2), pilot valve B(3), pilot valve C(4), structure is identical, pilot valve A(2) is contained on bottom valve (1) upper-end surface, pilot valve B(3), pilot valve C(4) be contained in respectively pilot valve A(2) before, be symmetric arrays on the trailing flank, be connected and fixed by screw and seal ring each other, three position four-way electromagnetic valve (5) is contained in pilot valve A(2) on the neutral position of upper-end surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405744 CN202789803U (en) | 2012-08-16 | 2012-08-16 | Multistage electromagnetic overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220405744 CN202789803U (en) | 2012-08-16 | 2012-08-16 | Multistage electromagnetic overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202789803U true CN202789803U (en) | 2013-03-13 |
Family
ID=47817069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220405744 Expired - Fee Related CN202789803U (en) | 2012-08-16 | 2012-08-16 | Multistage electromagnetic overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202789803U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704286A (en) * | 2017-02-28 | 2017-05-24 | 中冶华天南京工程技术有限公司 | Two-stage pressure switching overflow valve |
| CN109185253A (en) * | 2018-10-22 | 2019-01-11 | 陈少同 | A kind of electromagnetic relief valve |
-
2012
- 2012-08-16 CN CN 201220405744 patent/CN202789803U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704286A (en) * | 2017-02-28 | 2017-05-24 | 中冶华天南京工程技术有限公司 | Two-stage pressure switching overflow valve |
| CN106704286B (en) * | 2017-02-28 | 2018-05-18 | 中冶华天南京工程技术有限公司 | The overflow valve of two stage pressures switching |
| CN109185253A (en) * | 2018-10-22 | 2019-01-11 | 陈少同 | A kind of electromagnetic relief valve |
| CN109185253B (en) * | 2018-10-22 | 2020-04-21 | 杭州诚臻工程机械有限公司 | Electromagnetic overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20180816 |