CN201739556U - Hydraulic-control two-position three-way reversing valve core - Google Patents
Hydraulic-control two-position three-way reversing valve core Download PDFInfo
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- CN201739556U CN201739556U CN2010201961751U CN201020196175U CN201739556U CN 201739556 U CN201739556 U CN 201739556U CN 2010201961751 U CN2010201961751 U CN 2010201961751U CN 201020196175 U CN201020196175 U CN 201020196175U CN 201739556 U CN201739556 U CN 201739556U
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- valve core
- valve
- valve body
- piston
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Abstract
The utility model discloses a hydraulic-control two-position three-way reversing valve core. The two-position three-way reversing valve core comprises a valve core (1), a piston (2), a valve body (3), a threaded sleeve (4), a valve seat (5), a threaded plug (6), a liquid inlet (7), an impurity port (8), a liquid inlet (9) and a back washing channel (10), wherein the threaded plug (6) arranged at one end of the valve body (3) is connected with the threaded sleeve (4); the valve seat (5) is arranged between the threaded sleeve (4) and the back washing channel (10); the back washing channel (10) is communicated with the piston (2); the piston (2) is connected with the valve core (1); the impurity port (8) is formed at the other end of the valve body (3); the liquid inlet (9) is formed on one side of the valve body (3); and the liquid inlet (7) is formed on the other side of the valve body (3). Under the control of a set program, the valve core is opened alternately, so as to discharge impurities in a filter screen promptly, which ensures the cleanliness of a hydraulic-control system and the use safety of the electric hydraulic-control reversing valve; and the valve core components adopt an integral structure, so as to realize integral assembly and disassembly of the valve core components, as a result, operation under a severe complex underground work environment can be convenient, and the replacement can be convenient and fast.
Description
Technical field:
The utility model belongs to a kind of mining intrinsic safety electro-hydraulic control reversing valve.Be specifically related to a kind of hydraulic control two position three way directional control valve core.
Background technique
In modernized high-yield and high-efficiency coal comprehensive mining, reversing valve core component is made of parts such as valve pocket, valve seat, piston, spool, screw plug and joints sleeves, there is problem inconvenient, dangerous and that maintenance difficulties is big in traditional changeover valve core for dividing body structure when changing in the down-hole.
Summary of the invention:
The utility model is exactly to have problem inconvenient, dangerous and that maintenance difficulties is big will solve traditional changeover valve core and change in the down-hole time.
The utility model can be achieved through the following technical solutions: hydraulic control two position three way directional control valve core, comprise spool 1, piston 2, valve body 3, swivel nut 4, valve seat 5, screw plug 6, liquid entering hole 7, impurity mouth 8, liquid entering hole 9, backwash path 10, end at valve body 3 is provided with screw plug 6, screw plug 6 links to each other with swivel nut 4, be provided with valve seat 5 between swivel nut 4 and the backwash path 10, the backwash path 10 is connected with piston 2, piston 2 is connected with spool 1, the other end at valve body 3 is provided with impurity mouth 8, side at valve body 3 is provided with liquid entering hole 9, is provided with liquid entering hole 7 at the opposite side of valve body 3.
The utility model compared with prior art has following beneficial effect: under the program control of setting, spool is alternately opened, impurity in the filter screen in time can be discharged, guarantee the turbidity test of hydraulic control system and the Security that electric-hydraulic control reversing valve uses, mangetic core assembly is an overall structure, realized mangetic core assembly integrated type plug-in mounting, dismounting, be convenient to abominable in the down-hole, operate in the situation complex operating environment, change convenient, fast.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model
Five, embodiment
Hydraulic control two position three way directional control valve core assembly is as the backwash switch, comprise spool 1, piston 2, valve body 3, swivel nut 4, valve seat 5, screw plug 6, liquid entering hole 7, impurity mouth 8, liquid entering hole 9, backwash path 10, end at valve body 3 is provided with screw plug 6, screw plug 6 links to each other with swivel nut 4, be provided with valve seat 5 between swivel nut 4 and the backwash path 10, the backwash path 10 is connected with piston 2, piston 2 is connected with spool 1, the other end at valve body 3 is provided with impurity mouth 8, side at valve body 3 is provided with liquid entering hole 9, is provided with liquid entering hole 7 at the opposite side of valve body 3.Its job order is: at first supply with mining intrinsic safety electro control pilot valve setting voltage by bracket controller, main liquid enters piston 2 right chambeies by liquid entering hole 9, promotion piston 2 left-hands move closes liquid entering hole 7 earlier, piston 2 promotes spools 1 to be continued to move to left and opens the backwash path 10, makes that being backwashed the impurity that element kit blocks discharges through the backwash path 10s by impurity mouth 8.Mining intrinsic safety electro control pilot valve outage back liquid entering hole 9 pressure are zero, move to right and reset at effect lower valve core 1, the piston 2 of spring and liquid entering hole 7 working pressures and close the backwash path 10, and liquid entering hole 7 liquid enter the backwash element kit through impurity mouth 8.
Claims (1)
1. hydraulic control two position three way directional control valve core, comprise spool (1), piston (2), valve body (3), swivel nut (4), valve seat (5), screw plug (6), liquid entering hole (7), impurity mouth (8), liquid entering hole (9), backwash passage (10), it is characterized in that: the end at valve body (3) is provided with screw plug (6), screw plug (6) links to each other with swivel nut (4), be provided with valve seat (5) between swivel nut (4) and the backwash passage (10), backwash passage (10) is connected with piston (2), piston (2) is connected with spool (1), the other end at valve body (3) is provided with impurity mouth (8), side at valve body (3) is provided with liquid entering hole (9), is provided with liquid entering hole (7) at the opposite side of valve body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201961751U CN201739556U (en) | 2010-05-16 | 2010-05-16 | Hydraulic-control two-position three-way reversing valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201961751U CN201739556U (en) | 2010-05-16 | 2010-05-16 | Hydraulic-control two-position three-way reversing valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739556U true CN201739556U (en) | 2011-02-09 |
Family
ID=43554831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201961751U Expired - Lifetime CN201739556U (en) | 2010-05-16 | 2010-05-16 | Hydraulic-control two-position three-way reversing valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739556U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032419A (en) * | 2012-12-16 | 2013-04-10 | 华煤发展科技有限公司 | Hydraulic filter system |
| CN108518378A (en) * | 2018-05-18 | 2018-09-11 | 宁波真格液压科技有限公司 | A kind of automatic diverter valve for explosion-proof environment |
| CN109395449A (en) * | 2018-12-13 | 2019-03-01 | 丰隆高科液压股份有限公司 | A kind of air water two-way hydraulic control back-flushing filter |
-
2010
- 2010-05-16 CN CN2010201961751U patent/CN201739556U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032419A (en) * | 2012-12-16 | 2013-04-10 | 华煤发展科技有限公司 | Hydraulic filter system |
| CN103032419B (en) * | 2012-12-16 | 2015-12-16 | 华煤发展科技有限公司 | A kind of hydraulic filter unit |
| CN108518378A (en) * | 2018-05-18 | 2018-09-11 | 宁波真格液压科技有限公司 | A kind of automatic diverter valve for explosion-proof environment |
| CN109395449A (en) * | 2018-12-13 | 2019-03-01 | 丰隆高科液压股份有限公司 | A kind of air water two-way hydraulic control back-flushing filter |
| CN109395449B (en) * | 2018-12-13 | 2024-01-23 | 丰隆高科液压股份有限公司 | Gas-water double-path liquid control backflushing filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |
|
| CX01 | Expiry of patent term |