CN202746315U - Reversing valve with direct-acting overflowing valve - Google Patents
Reversing valve with direct-acting overflowing valve Download PDFInfo
- Publication number
- CN202746315U CN202746315U CN 201220421041 CN201220421041U CN202746315U CN 202746315 U CN202746315 U CN 202746315U CN 201220421041 CN201220421041 CN 201220421041 CN 201220421041 U CN201220421041 U CN 201220421041U CN 202746315 U CN202746315 U CN 202746315U
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- Prior art keywords
- valve
- overflowing
- direct
- acting
- reversing
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a reversing valve with a direct-acting overflowing valve.The reversing valve with the direct-acting overflowing valve comprises an overflowing valve component arranged in a valve body. An oil entering mouth P and an overflowing mouth T are arranged o the valve body, and the overflowing valve component is a direct-acting overflowing valve. The overflowing valve component comprises a valve base, a valve spool, a spring and a pressure adjusting bolt. The valve base is arranged in a cavity of the valve body in inserted mode, the valve spool, the spring and the pressure adjusting bolt are sequentially arranged inside the valve body, the pressure adjusting bolt and the valve base are connected into a whole in threaded mode. The reversing valve with the direct-acting overflowing valve substitutes a pilot-operated valve with a direct-acting valve, is simple in structure, is easy to assemble, and reduces demand for cleanliness of hydraulic oil. Pressure stability is good, product quality and using performance are improved, and the reversing valve product repair rate of three guarantees (for repair, replacement or compensation of faulty products) caused by quality problem of the overflowing valve is greatly reduced.
Description
Technical field
The utility model relates to the hydraulicdirectional control valve field, is specifically related to be provided with the selector valve of direct-acting overflow valve.
Background technique
Relief valve is a kind of hydraulic pressure control valve, mainly plays level pressure overflow effect, voltage stabilizing, system unloaded and safety protection effect in hydraulic equipment.Relief valve in the selector valve system adopted pilot operated compound relief valve more in the past, because pilot operated compound relief valve complex structure, assembling difficulty is high, turbidity test to hydraulic oil require very high, if cleanliness of hydraulic oil is poor, to directly affect the relief valve service behaviour, cause the hydraulic system paralysis, therefore using the selector valve product of pilot operated compound relief valve often to move back factory because of the problem of relief valve reprocesses, the client is very dissatisfied, therefore company also drops into a large amount of manpowers, financial resources, and the negative effect to company that product quality problem brings is more abominable.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of selector valve that is provided with direct-acting overflow valve, and is simple in structure, assembles simple and easy, and the turbidity test to hydraulic oil require low, the stationarity of pressure is good, improves the quality of products and usability, greatly reduces selector valve product three guarantees repair rate.
The utility model is achieved through the following technical solutions:
Be provided with the selector valve of direct-acting overflow valve, comprise the spill valve of being located in the valve body, oil inlet P and flow-off T are arranged on the valve body, described spill valve is direct-acting overflow valve.
The further improvement project of the utility model is, described spill valve comprises valve seat, spool, spring and regulator bolts, described valve seat is inserted in the interior cavity of valve body, is provided with successively spool, spring, regulator bolts in the valve seat, and regulator bolts and valve seat spiral connect as one.
The utility model further improvement project is that described spool is poppet valve core.
The utility model compared with prior art has following obvious advantage:
The utility model replaces to direct-acting overflow valve with the pilot operated compound relief valve parts of selector valve, simple in structure, assemble simple and easy, and greatly reduce requirement to cleanliness of hydraulic oil, the stationarity of pressure is good, improve quality of product and usability, greatly reduced the three guarantees repair rate that the selector valve product causes because of the relief valve quality problems.
Description of drawings
Fig. 1 is the utility model partial sectional view.
Embodiment
As shown in Figure 1, the selector valve that is provided with direct-acting overflow valve of the present utility model comprises the spill valve 2 of being located in the valve body 1, and oil inlet P and flow-off T are arranged on the valve body 1, and described spill valve 2 is direct-acting overflow valve.
Described spill valve 2 comprises valve seat 21, spool 22, spring 23 and regulator bolts 24, described valve seat 21 is inserted in the cavity in the valve body 1, be provided with successively spool 22, spring 23, regulator bolts 24 in the valve seat 21, regulator bolts 24 connects as one with valve seat 21 spirals.Described spool 22 is poppet valve core.
The hydraulic oil of oil inlet P enters working hole A during work; when the oil pressure of oil inlet P is higher than the pressure of relief valve setting; the hydraulic oil of oil inlet P can promote spool 22; from the unnecessary pressure of oil return inlet T off-load; guarantee that oil inlet P is not higher than the pressure that relief valve is set up to the supply oil pressure of working hole A; thereby protective system pressure satisfies job requirement.
Claims (3)
1. be provided with the selector valve of direct-acting overflow valve, comprise the spill valve (2) of being located in the valve body (1), oil inlet P and flow-off T are arranged on the valve body (1), it is characterized in that: described spill valve (2) is direct-acting overflow valve.
2. the selector valve that is provided with direct-acting overflow valve according to claim 1, it is characterized in that: described spill valve (2) comprises valve seat (21), spool (22), spring (23) and regulator bolts (24), described valve seat (21) is inserted in the interior cavity of valve body (1), be provided with successively spool (22), spring (23), regulator bolts (24) in the valve seat (21), regulator bolts (24) connects as one with valve seat (21) spiral.
3. the selector valve that is provided with direct-acting overflow valve according to claim 2, it is characterized in that: described spool (22) is poppet valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421041 CN202746315U (en) | 2012-08-23 | 2012-08-23 | Reversing valve with direct-acting overflowing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421041 CN202746315U (en) | 2012-08-23 | 2012-08-23 | Reversing valve with direct-acting overflowing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202746315U true CN202746315U (en) | 2013-02-20 |
Family
ID=47705715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220421041 Expired - Fee Related CN202746315U (en) | 2012-08-23 | 2012-08-23 | Reversing valve with direct-acting overflowing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202746315U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806595A (en) * | 2015-04-29 | 2015-07-29 | 浙江大学 | Direct-acting type load control valve used for integrating overflowing function into main valve core |
| CN106438583A (en) * | 2016-10-11 | 2017-02-22 | 上海航天控制技术研究所 | Novel large-flow and small-inner-leakage-flow direct-acting type overflow valve |
-
2012
- 2012-08-23 CN CN 201220421041 patent/CN202746315U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806595A (en) * | 2015-04-29 | 2015-07-29 | 浙江大学 | Direct-acting type load control valve used for integrating overflowing function into main valve core |
| CN104806595B (en) * | 2015-04-29 | 2017-02-01 | 浙江大学 | Direct-acting type load control valve used for integrating overflowing function into main valve core |
| CN106438583A (en) * | 2016-10-11 | 2017-02-22 | 上海航天控制技术研究所 | Novel large-flow and small-inner-leakage-flow direct-acting type 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 |
Granted publication date: 20130220 Termination date: 20200823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |