CN210178389U - Drainage balance type bidirectional liquid return alternate valve - Google Patents
Drainage balance type bidirectional liquid return alternate valve Download PDFInfo
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- CN210178389U CN210178389U CN201921043336.0U CN201921043336U CN210178389U CN 210178389 U CN210178389 U CN 210178389U CN 201921043336 U CN201921043336 U CN 201921043336U CN 210178389 U CN210178389 U CN 210178389U
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Abstract
The utility model discloses a drainage balanced type two-way liquid return alternating valve, which comprises a valve body, wherein a valve core assembly arranged on the valve body is communicated with a liquid return port and a working port through a valve cavity, the valve core assembly comprises a valve sleeve coaxially arranged with the liquid return port, one end of the valve sleeve is provided with a liquid inlet, and the other end of the valve sleeve is provided with a valve core sleeved with a return spring; the tail part of the valve core is provided with a working cavity communicated with the liquid inlet, a gap between the valve core and the valve sleeve forms a balance cavity, and the working cavity and the balance cavity are respectively communicated with the valve cavity. The utility model discloses have two-way double-flow-passage and return the liquid function, can balance the malfunction such as valve port that liquid pressure arouses is closed passively, its simple structure is compact, and the liquid hinders for a short time, and it is big to return the liquid flow, and the passageway high-usage, and the working property is reliable and stable, maintains convenient and fast, is particularly suitable for the mining support hydraulic control system who has large-traffic liquid demand of returning.
Description
Technical Field
The utility model belongs to the technical field of two-position three-way formula switching-over valve technique that mining hydraulic support used and specifically relates to a two-way liquid return of drainage balanced type is valve in turn.
Background
Along with the improvement of mine pressure and mining height standards, the cylinder diameter of a jack of a hydraulic support is larger and larger, and the requirement for large flow of return liquid of an alternating valve used by a hydraulic system is also larger and larger. The alternating valve is one of important components of a hydraulic control system of the mining support, various combined actions of the hydraulic cylinder are realized by reversing control of the alternating valve on the liquid feeding and returning, and the performance of the alternating valve directly influences the comprehensive performance of the hydraulic support and the hydraulic system. At present, the similar conventional alternating valve at home and abroad can only realize liquid return of a single-side return channel, and the return channel cannot be effectively utilized because the pipeline is easily blocked due to vibration when a passage is formed by the return channel at the other side, namely the conventional alternating valve has various defects of large liquid resistance, poor working reliability and the like.
Disclosure of Invention
In order to solve the above problem, the utility model provides a two-way liquid alternation valve that returns of drainage balanced type specifically can take following technical scheme:
the utility model discloses a two-way liquid alternation valve that returns of drainage balanced type, including the valve body, the case subassembly that sets up on the valve body is linked together through valve pocket and liquid return mouth and working port, the case subassembly include with the coaxial valve barrel that sets up of liquid return mouth, valve barrel one end is seted up the inlet, the valve barrel other end is worn to be equipped with the case of overcoat return spring; the tail part of the valve core is provided with a working cavity communicated with the liquid inlet, a gap between the valve core and the valve sleeve forms a balance cavity, and the working cavity and the balance cavity are respectively communicated with the valve cavity.
The working cavity and the valve cavity are communicated through a radial hole formed in the head of the valve core.
The balance cavity is communicated with the valve cavity through a backflow channel arranged on the valve sleeve.
The valve sleeve is composed of a main body sleeve and a guide end cover, and the backflow channel is formed in the guide end cover.
And a sealing ring and a connecting thread matched with the valve body are arranged on the outer side of the valve sleeve.
And the tail part of the liquid return port is provided with a sealing surface matched with the valve core.
The utility model discloses have two-way double-flow-passage and return the liquid function, can balance the malfunction such as valve port that liquid pressure arouses is closed passively, its simple structure is compact, and the liquid hinders for a short time, and it is big to return the liquid flow, and the passageway high-usage, and the working property is reliable and stable, maintains convenient and fast, is particularly suitable for the mining support hydraulic control system who has large-traffic liquid demand of returning.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the two-way liquid-returning alternation valve of drainage balanced type, including the valve body 1 of installing the case subassembly, its valve pocket C is linked together with working port A and liquid-returning port R, and the case subassembly sets up with liquid-returning port R is coaxial. The valve core assembly comprises a valve sleeve consisting of a main body sleeve 2.1 and a guide end cover 2.2, wherein the main body sleeve 2.1 is assembled on the valve body 1 through connecting threads and is sealed through a sealing ring; the interior of the main body sleeve 2.1 is divided into two parts by a mounting plate, one end close to the outer side is provided with a liquid inlet P, one end close to the valve cavity C is provided with a valve core 2.3, the tail part of the valve core 2.3 is hollow to form a working cavity E communicated with the liquid inlet P, and the working cavity E is communicated with the valve cavity C through a radial hole 2.4 arranged at the head part of the valve core 2.3; the outer side of the valve core 2.3, the main body sleeve 2.1 and the guide end cover 2.2 form a balance cavity D, and the balance cavity D is communicated with the valve cavity C through a return channel 2.5 arranged on the guide end cover 2.2; the valve core 2.3 is sleeved with a return spring 2.6 positioned in the balance cavity D, and when the valve core 2.3 overcomes the resistance of the return spring 2.6 and extends out, the valve core can be tightly matched with a sealing surface arranged at the tail part of the liquid return port R.
The utility model discloses use the emulsion as working medium usually, when using as the feed liquor valve, take the pressure emulsion to enter into case 2.3's working chamber E through inlet P, then flow into in the valve pocket C through radial hole 2.4 on the case 2.3, and simultaneously, take the pressure emulsion to push away the effort that case 2.3 overcome return spring 2.6 and move left, it is sealed to make case 2.3 sticis pressing to form on the sealed face of returning liquid mouth R right-hand member, block valve pocket C and the intercommunication of returning liquid mouth R, return liquid mouth R is closed, therefore, the emulsion that comes from inlet P is in proper order through working chamber E, valve pocket C flows to working port A, supply with hydraulic executive component and realize predetermined function.
When the utility model is used as a liquid return valve, the backflow emulsion from the hydraulic actuating element firstly reaches the working port A and then enters the valve cavity C. Under normal conditions, the valve core 2.3 automatically resets right under the action of the return spring 2.6, so that the valve cavity C is directly communicated with the liquid return port R, and simultaneously the valve cavity C is also communicated with the working cavity E through the radial hole 2.4 of the valve core 2.3, so that the backflow emulsion simultaneously flows to the liquid return port R and the liquid inlet P from the working port A, and double-port bidirectional liquid return is realized. In the process, the valve core 2.3 may move leftwards under the action of hydraulic force against the action force of the return spring 2.6, so that the liquid return port R is blocked from the valve cavity C, and liquid return cannot be performed. And the utility model discloses owing to set up balanced chamber D, solved above-mentioned problem well. Come from work port A's backward flow emulsion except getting into back liquid mouth R and inlet P and realize two-way liquid that returns, go back accessible return flow channel 2.5 and get into balanced chamber D, balanced chamber D can play the effect of balanced liquid drive, and the effort that effectively prevents to overcome return spring 2.6 at case 2.3 under the effect of liquid drive forms sealedly with valve body 1, and then guarantees the utility model discloses working property's stability when two-way liquid that returns.
Claims (6)
1. The utility model provides a two-way liquid alternation valve that returns of drainage balanced type, includes the valve body, the case subassembly that sets up on the valve body is linked together its characterized in that through valve pocket and liquid return mouth and working port: the valve core assembly comprises a valve sleeve which is coaxial with the liquid return port, one end of the valve sleeve is provided with a liquid inlet, and the other end of the valve sleeve is penetrated by a valve core sleeved with a return spring; the tail part of the valve core is provided with a working cavity communicated with the liquid inlet, a gap between the valve core and the valve sleeve forms a balance cavity, and the working cavity and the balance cavity are respectively communicated with the valve cavity.
2. The drainage balance type bidirectional liquid return alternating valve according to claim 1, characterized in that: the working cavity and the valve cavity are communicated through a radial hole formed in the head of the valve core.
3. The drainage balance type bidirectional liquid return alternating valve according to claim 1, characterized in that: the balance cavity is communicated with the valve cavity through a backflow channel arranged on the valve sleeve.
4. The drainage balance type bidirectional liquid return alternating valve according to claim 3, characterized in that: the valve sleeve is composed of a main body sleeve and a guide end cover, and the backflow channel is formed in the guide end cover.
5. The drainage balance type bidirectional liquid return alternating valve according to claim 1, characterized in that: and a sealing ring and a connecting thread matched with the valve body are arranged on the outer side of the valve sleeve.
6. The drainage balance type bidirectional liquid return alternating valve according to claim 1, characterized in that: and the tail part of the liquid return port is provided with a sealing surface matched with the valve core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921043336.0U CN210178389U (en) | 2019-07-05 | 2019-07-05 | Drainage balance type bidirectional liquid return alternate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921043336.0U CN210178389U (en) | 2019-07-05 | 2019-07-05 | Drainage balance type bidirectional liquid return alternate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210178389U true CN210178389U (en) | 2020-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921043336.0U Active CN210178389U (en) | 2019-07-05 | 2019-07-05 | Drainage balance type bidirectional liquid return alternate valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN210178389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185481A (en) * | 2019-07-05 | 2019-08-30 | 郑州煤机液压电控有限公司 | It drains balance type two-way and returns liquid alternate valve |
-
2019
- 2019-07-05 CN CN201921043336.0U patent/CN210178389U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185481A (en) * | 2019-07-05 | 2019-08-30 | 郑州煤机液压电控有限公司 | It drains balance type two-way and returns liquid alternate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201125 Address after: 450016 No. ninth, 167 Avenue, Zhengzhou Economic Development Zone, Henan, China Patentee after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Patentee after: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: 450016 No. ninth, 167 Avenue, Zhengzhou Economic Development Zone, Henan, China Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220725 Address after: 450016 No. 167, 9th Street, Zhengzhou area (Economic Development Zone), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee after: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Address before: No.167, 9th Street, Zhengzhou Economic Development Zone, Henan Province, 450016 Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. Patentee before: ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.167, 9th Street, Zhengzhou Economic and Technological Development Zone, Henan Province, 450016 Patentee after: Zhengzhou Hengda Intelligent Control Technology Co.,Ltd. Address before: 450016 No. 167, 9th Street, Zhengzhou area (Economic Development Zone), Henan pilot Free Trade Zone, Zhengzhou City, Henan Province Patentee before: HYDRAULIC & ELECTRIC CONTROL EQUIPMENT CO LTD ZHENGZHOU COAL MINING MACHINERY GROUP Co.,Ltd. |