CN102261492A - Electric control reversing valve - Google Patents
Electric control reversing valve Download PDFInfo
- Publication number
- CN102261492A CN102261492A CN201110115743XA CN201110115743A CN102261492A CN 102261492 A CN102261492 A CN 102261492A CN 201110115743X A CN201110115743X A CN 201110115743XA CN 201110115743 A CN201110115743 A CN 201110115743A CN 102261492 A CN102261492 A CN 102261492A
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- China
- Prior art keywords
- electric control
- control reversing
- reversing valve
- valve
- valve body
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Abstract
The invention discloses an electric control reversing valve, which comprises a valve body, front and rear covers at two ends of the valve body, and a sliding valve rod arranged in the valve body; big and small pistons are arranged at two ends of the sliding valve rod respectively; big and small piston cavities corresponding to the big and small pistons are formed in the front and rear covers; a gland and a coil assembly are sequentially arranged at the front cover end; an on-off air passage and a sleeve assembly for allowing the pistons to move are arranged in the coil assembly; a hollow groove is formed in the sliding valve rod; and two ends of the hollow groove are communicated with the big and small piston cavities respectively. The reversing valve has the characteristics of long service life, good stability, miniaturization, low power consumption and the like.
Description
Technical field
The invention belongs to the pneumatics field, relate in particular to a kind of electric control reversing valve.
Background technique
Existing electric control reversing valve mainly is the low-and-medium-grade products of the imitated nineties in last century of more external producers at China's Ningbo of Zhejiang, Wenzhou one band, but its suction pore directly communicates with the external world, be that its sliding bar is solid, during its piston motion, institute's body of its suction directly leads to the external world, extraneous dust is easy to the sucker chamber, causes piston cavity to stop up the problem of defective diverted valve.
Summary of the invention
At above-mentioned technological deficiency, the technical problem that the present invention need solve provides a kind of internal respiration formula, the electric control reversing valve that the life-span is long.
The technical problem that the present invention need solve is achieved through the following technical solutions: a kind of electric control reversing valve, comprise valve body, valve body two ends front and rear covers, in valve body, be provided with sliding stem, the two ends of sliding stem are respectively equipped with large and small piston, on front and rear covers, be provided with the large and small piston cavity corresponding with large and small piston, be provided with gland and coil block successively at the protecgulum end, be provided with the break-make gas circuit in the coil block and make the sleeve assembly of piston motion, be provided with hollow groove in the described sliding stem, the two ends of hollow groove communicate with large and small piston cavity respectively.
Further: in above-mentioned electric control reversing valve, described valve rod is provided with fixing seal ring.The two ends of described sliding stem also are provided with guide collar.The material of described seal ring is a nitrile butadiene rubber wear-resisting, oil resistant.
Compared with prior art, be provided with hollow groove in the sliding stem of above-mentioned electric control reversing valve, the two ends of hollow groove communicate with large and small piston cavity respectively.Be the structure that product has carried out built-in spiracle, can prevent dust sucker chamber, improved the working life and the stability of selector valve, have characteristics such as miniaturization, low power consumption.The sealing configuration of electric control reversing valve adopts elastic seal ring to be fixed on the sliding stem, the structure of valve stem slides, and simultaneously, valve body adopts the accurate digital control apparatus processing, and degree of finish is good, so its good seal performance.The valve rod two ends add the innovation structure of guide collar, and selector valve is when the commutation action, and the radial force of generation is born by two guide collar, avoid seal ring to be subjected to bigger radial force and cause wearing and tearing to be accelerated, and have improved the working life and the stability of selector valve.The material of seal ring all adopts nitrile butadiene rubber that do not have to give oil lubrication, wear-resisting, oil resistant, itself has the function of selflubricating, so electrically-controlled valve can be worked not having under the pressurized air of oil lubrication of giving.
Description of drawings
Fig. 1 is that portion of the present invention shows structural drawing;
Wherein 1 valve body, 2 protecgulums, 3 bonnets, 4 valve rods, 5 big pistons, 6 small pistons, 7 big piston chambeies, 8 small piston chambeies, 9 glands, 10 coil blocks, 11 sleeve assemblies, 12 hollow grooves, 13 seal rings, 14 guide collar.
Specific embodiments
With reference to accompanying drawing 1 and embodiment the present invention is described.
A kind of electric control reversing valve, comprise valve body 1, valve body 1 two ends front and rear covers 2,3, in valve body 1, be provided with sliding stem 4, the two ends of sliding stem 4 are respectively equipped with large and small piston 5,6, on front and rear covers 2,3, be provided with the large and small piston cavity corresponding 7,8 with large and small piston, be provided with gland 9 and coil block 10 successively at protecgulum 2 ends, be provided with the break-make gas circuit in the coil block 10 and make the sleeve assembly 11 of piston motion, be provided with hollow groove 12 in the described sliding stem 4, the two ends of hollow groove 12 communicate with large and small piston cavity 7,8 respectively.Described valve rod 4 is provided with fixing seal ring 13.The two ends of described sliding stem 4 also are provided with guide collar 14.The material of described seal ring 13 is nitrile butadiene rubbers wear-resisting, oil resistant.
Product has carried out the structure of built-in spiracle, can prevent dust sucker chamber, has improved the working life and the stability of selector valve.The sealing configuration of electric control reversing valve adopts elastic seal ring to be fixed on the sliding stem 4, the structure that valve rod 4 slides, and simultaneously, valve body adopts the accurate digital control apparatus processing, and degree of finish is good, so its good seal performance.The valve rod two ends add the innovation structure of guide collar, and selector valve is when the commutation action, and the radial force of generation is born by two guide collar 14, avoid seal ring 13 to be subjected to bigger radial force and cause wearing and tearing to be accelerated, and have improved the working life and the stability of selector valve.The material of seal ring all adopts nitrile butadiene rubber that do not have to give oil lubrication, wear-resisting, oil resistant, itself has the function of selflubricating, so electrically-controlled valve can be worked not having under the pressurized air of oil lubrication of giving.
The above is a preferred embodiment of the present invention, is not breaking away under the design situation of the present invention, carries out any conspicuous distortion and replacement, all belongs to protection domain of the present invention.
Claims (4)
1. electric control reversing valve, comprise valve body (1), the front and rear covers (2 at valve body (1) two ends, 3), in valve body (1), be provided with sliding stem (4), the two ends of sliding stem (4) are respectively equipped with greatly, small piston (5,6), at front and rear covers (2,3) be provided with big, small piston correspondence big, small piston chamber (7,8), be provided with gland (9) and coil block (10) successively at protecgulum (2) end, be provided with the break-make gas circuit in the coil block (10) and make the sleeve assembly (11) of piston motion, it is characterized in that: be provided with hollow groove (12) in the described sliding stem (4), the two ends of hollow groove (12) respectively with greatly, small piston chamber (7,8) communicate.
2. electric control reversing valve according to claim 1 is characterized in that: described valve rod (4) is provided with fixing seal ring (13).
3. electric control reversing valve according to claim 2 is characterized in that: the two ends of described sliding stem (4) also are provided with guide collar (14).
4. according to any described electric control reversing valve among the claim 1-3, it is characterized in that: the material of described seal ring (13) is a nitrile butadiene rubber wear-resisting, oil resistant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115743XA CN102261492A (en) | 2011-04-28 | 2011-04-28 | Electric control reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110115743XA CN102261492A (en) | 2011-04-28 | 2011-04-28 | Electric control reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261492A true CN102261492A (en) | 2011-11-30 |
Family
ID=45008250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110115743XA Pending CN102261492A (en) | 2011-04-28 | 2011-04-28 | Electric control reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102261492A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390032A (en) * | 2014-11-21 | 2015-03-04 | 宁波飞泰工业自控设备有限公司 | Pneumatic type electromagnetic valve |
| CN105003689A (en) * | 2014-04-21 | 2015-10-28 | 深圳市品川新智科技发展有限公司 | Novel high-pressure two-position two-way straight-through type mechanical pneumatic control valve |
| CN105299261A (en) * | 2014-06-20 | 2016-02-03 | 比尔克特韦尔克有限公司 | Slide valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201372980Y (en) * | 2009-02-17 | 2009-12-30 | 肇庆市志成气动有限公司 | Pneumatic reversing valve |
| CN201992126U (en) * | 2011-04-28 | 2011-09-28 | 肇庆市志成气动有限公司 | Electric control reversing valve |
-
2011
- 2011-04-28 CN CN201110115743XA patent/CN102261492A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201372980Y (en) * | 2009-02-17 | 2009-12-30 | 肇庆市志成气动有限公司 | Pneumatic reversing valve |
| CN201992126U (en) * | 2011-04-28 | 2011-09-28 | 肇庆市志成气动有限公司 | Electric control reversing valve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003689A (en) * | 2014-04-21 | 2015-10-28 | 深圳市品川新智科技发展有限公司 | Novel high-pressure two-position two-way straight-through type mechanical pneumatic control valve |
| CN105299261A (en) * | 2014-06-20 | 2016-02-03 | 比尔克特韦尔克有限公司 | Slide valve |
| CN104390032A (en) * | 2014-11-21 | 2015-03-04 | 宁波飞泰工业自控设备有限公司 | Pneumatic type electromagnetic valve |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111130 |