CN203614809U - Wet-type electromagnetic directional valve - Google Patents
Wet-type electromagnetic directional valve Download PDFInfo
- Publication number
- CN203614809U CN203614809U CN201320666380.3U CN201320666380U CN203614809U CN 203614809 U CN203614809 U CN 203614809U CN 201320666380 U CN201320666380 U CN 201320666380U CN 203614809 U CN203614809 U CN 203614809U
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- oil circuit
- valve
- valve body
- wet
- type electromagnetic
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Abstract
The utility model discloses a wet-type electromagnetic directional valve, relates to the field of flow control, and solves the problems that the structure is complicated and the internal viscous force of a valve cavity is great in the prior art. The directional valve is composed of a valve body and a valve element arranged inside the valve body, wherein the two ends of the valve body are provided with electromagnets for driving the valve element to move left and right; a reset spring for resetting the valve element is arranged between each electromagnet and the valve element; the interior of the valve body is provided with four oil ways which are mutually and selectively communicated; the on and off of each oil way are controlled through a sealing check ring on the valve element, wherein the first oil way and the second oil way which are communicated with the outside are trumpet-shaped, and are larger in calibers at the external ends and smaller in calibers at the internal ends, so that the flow rate when oil liquid flows through the first oil way and the second oil way can be increased, the effect of cleaning the interior of the valve cavity is achieved, and the generation of overlarge viscous force due to greasy dirt is prevented. Compared with an existing directional valve, the directional valve has the characteristics of simple structure and high sealing property, the valve cavity can be automatically cleaned, and the service life and maintenance period are prolonged.
Description
Technical field
The utility model relates to flow control field, be specifically related to a kind of simple in structure, good seal performance, and there is the wet-type electromagnetic direction changing valve that auto purification is removed contamination.
Background technique
Selector valve is commonly used to control the flow direction of fluid, in some fluid conveyance conduits, application is comparatively general, in production practices, on the one hand, because the long-time in running order temperature that causes of electromagnetic core of selector valve is high, the wet electro-magnet in-core hydraulic medium thickness that goes bad, or the residual liquid of new wet type electromagnetic iron core reacts generation thick substances with the hydraulic medium of on-the-spot application system, by stagnant the catch bar of wet type electromagnetic iron core live, cause the slack-off not even action of selector valve action, cause the even major accident such as personal injury of equipment failure; On the other hand, the bore of the width of the Sealing shield ring on spool and each oil circuit mouth differs very little, fluid easily occurs in use and reveal, and causes moving malfunctioning.
Model utility content
The defect existing in order to solve above-mentioned technology, it is a kind of simple in structure that the utility model provides, good seal performance, and there is the wet-type electromagnetic direction changing valve that auto purification is removed contamination.
The utility model is realized the technological scheme that above-mentioned technique effect adopts:
A kind of wet-type electromagnetic direction changing valve, comprise valve body and be located at the spool in described valve body, in described valve body, be provided with the oil circuit of at least four alternative conductings, described valve body two ends are provided with controls the electromagnet that described spool moves, wherein, the first oil circuit and the second oil circuit that in described oil circuit, communicate with the external world are horn-like, and its oil circuit outer end bore is large, the inner bore of oil circuit is little, and described spool is provided with the Sealing shield ring crossing mouthful for the each oil circuit of shutoff.
Above-mentioned a kind of wet-type electromagnetic direction changing valve, described Sealing shield ring is the Sealing shield ring of nitrile rubber material, the width of sealing back-up ring is 1.5 to 2 times of the inner bore of the oil circuit of the first oil circuit and the second oil circuit.
Above-mentioned a kind of wet-type electromagnetic direction changing valve, is provided with Returnning spring between described electromagnet and described spool, and described Returnning spring one end is fixed on the push rod of described electromagnet, and the other end is fixed in the inner chamber of described valve body.
Above-mentioned a kind of wet-type electromagnetic direction changing valve, the two ends of described valve body are provided with emergent knob, and described emergent knob is connected with described electromagnet.
The beneficial effects of the utility model are: this wet-type electromagnetic direction changing valve is designed to horn-like by the first oil circuit communicating with the external world and the second oil circuit, make its oil circuit outer end bore large, inner bore is little, can increase in use the flow velocity that fluid is flowed through, realizing fluid circulation cleans and synchronizes with valve pocket auto purification, can prevent the thick substances viscous push rod that in valve pocket, hydraulic medium produces, avoid the excessive viscous force of the inner generation of valve pocket, extend working life and maintenance period.In addition, Sealing shield ring wider on spool can play shutoff completely to each oil circuit mouth, is difficult in use occurring fluid and reveals, and working stability is reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-valve body, 2-spool, 3-electromagnet, 4-joint, the emergent knob of 5-, 6-push rod, 7-the first oil circuit, 8-the second oil circuit, 9-the 3rd oil circuit, 10-the 4th oil circuit, 11-Returnning spring, 12-Sealing shield ring, 71-restricted flow passage, 81-restricted flow passage.
Embodiment
For making that the utility model is had to further understanding, below with reference to Figure of description and specific embodiment, the utility model is described in further detail:
Shown in Fig. 1, a kind of wet-type electromagnetic direction changing valve, comprise valve body 1 and be located at the spool 2 in valve body 1, spool 2 is provided with Sealing shield ring 12, sealing back-up ring 12 is the making of nitrile rubber material, there is the dirty corrosion protection of oil resistant and anti abrasive effect, in valve body 1, be provided with the oil circuit of at least four alternative conductings, comprise the first oil circuit 7, the second oil circuit 8, the 3rd oil circuit 9 and the 4th oil circuit 10, the first oil circuit 7 and the second oil circuit 8 respectively with the 3rd oil circuit 9 selectivity conductings, the first oil circuit 7 and the second oil circuit 8 respectively with the 4th oil circuit 10 selectivity conductings, wherein, article four, the first oil circuit 7 and the second oil circuit 8 that in oil circuit, communicate with the external world are horn-like, its oil circuit outer end bore is large, inner bore is little, inner small-bore part forms the restricted flow passage (71 of oil circuit, 81).In addition, in order to reach better sealing effect, the width of Sealing shield ring 12 is the inner bore of the oil circuit of the first oil circuit 7 and the second oil circuit 8,1.5 to 2 times of the aperture of restricted flow passage (71,81).
When enforcement, valve body 1 two ends are provided with the electromagnet 3 for switching spool 2 working positions, this electromagnet 3 is located in the cavity at valve body 1 interior two ends, it comprises a moving iron core and the static iron core coordinating with moving iron core, moving iron core is provided with push rod 6, push rod 6 is connected with spool 2 through static iron core, between moving iron core and static iron core, keep one end slight distance, between static iron core and spool 2, be provided with the Returnning spring 11 that piano wire material is made, these Returnning spring 11 one end are connected in the inner chamber of valve body 1, and the other end is fixed on push rod.The anti-Fatigue Strength of Metal of Returnning spring 11 of piano wire material is large, is active in one's movements, and the deformation that can bear is is repeatedly bent and stretched, long service life.On moving iron core, be socketed with inductance coil, the two ends of valve body 1 are provided with joint 4, and this joint 4 is electrically connected with inductance coil, to switch on power, inductance coil is switched on.For preventing under powering-off state, selector valve can not be carried out and switch action, and the two ends of valve body 1 are also provided with emergent knob 5, and this emergent knob 5 is connected with the moving iron core of oil circuit, the emergent knob 5 of turn can move moving after iron core promotes forward also, realizes manual-operated emergent under powering-off state and switches.
The working principle of this selector valve is: under original state, spool 2 is positioned at static station, Sealing shield ring 12 shutoff on spool 2 are at the mouth that crosses of each oil circuit, cut off each oil circuit, make it not conducting mutually, in the time that left side joint 4 switches on power, inductance coil produces induction field under alternating current effect, the magnetic attraction static iron core producing, thereby drive moving iron core close to static iron core, so, being fixed on push rod 6 on moving iron core promotes spool 2 and moves to corresponding station, Sealing shield ring 12 on spool 2 is removed from the mouth that crosses of each oil circuit, in the time that spool 2 moves right to corresponding station, the 3rd oil circuit 9 and the first oil circuit 7 conductings, the second oil circuit 8 and the 4th oil circuit 10 conductings.In the time that right side joint 4 switches on power, inductance coil produces induction field at inductance coil under alternating current effect, the magnetic attraction static iron core producing, thereby drive moving iron core close to static iron core, so, be fixed on push rod 6 on moving iron core and promote spool 2 and move to corresponding station, Sealing shield ring 12 on spool 2 is removed from the mouth that crosses of each oil circuit, in the time that spool 2 is moved to the left corresponding station, the 3rd oil circuit 9 and the second oil circuit 8 conductings, the first oil circuit 7 and the 4th oil circuit 10 conductings.
In the time there is powering-off state, also can carry out manual tune by the emergent knob at valve body 1 two ends 5, use more safe and reliablely, performance is more stable.This wet-type electromagnetic direction changing valve is designed to horn-like by the first oil circuit 7 communicating with the external world and the second oil circuit 8, make its oil circuit outer end bore large, inner bore is little, can increase in use the flow velocity that fluid is flowed through, realizing fluid circulation cleans and synchronizes with valve pocket auto purification, can prevent the thick substances viscous push rod that in valve pocket, hydraulic medium produces, avoid the excessive viscous force of the inner generation of valve pocket, extend working life and maintenance period.In addition, Sealing shield ring 12 wider on spool 2 can play shutoff completely to each oil circuit mouth, is difficult in use occurring fluid and reveals, and working stability is reliable.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications; these changes and improvements all fall in claimed scope of the present utility model, and the protection domain that the utility model requires is defined by appending claims and equivalent thereof.
Claims (4)
1. a wet-type electromagnetic direction changing valve, comprise valve body and be located at the spool in described valve body, in described valve body, be provided with the oil circuit of at least four alternative conductings, described valve body two ends are provided with controls the electromagnet that described spool moves, it is characterized in that, the first oil circuit and the second oil circuit that in described oil circuit, communicate with the external world are horn-like, and its oil circuit outer end bore is large, the inner bore of oil circuit is little, and described spool is provided with the Sealing shield ring crossing mouthful for the each oil circuit of shutoff.
2. a kind of wet-type electromagnetic direction changing valve according to claim 1, is characterized in that, described Sealing shield ring is the Sealing shield ring of nitrile rubber material, and the width of sealing back-up ring is 1.5 to 2 times of the inner bore of the oil circuit of the first oil circuit and the second oil circuit.
3. a kind of wet-type electromagnetic direction changing valve according to claim 1, is characterized in that, between described electromagnet and described spool, is provided with Returnning spring, and described Returnning spring one end is fixed on the push rod of described electromagnet, and the other end is fixed in the inner chamber of described valve body.
4. a kind of wet-type electromagnetic direction changing valve according to claim 1, is characterized in that, the two ends of described valve body are provided with emergent knob, and described emergent knob is connected with described electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666380.3U CN203614809U (en) | 2013-10-25 | 2013-10-25 | Wet-type electromagnetic directional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666380.3U CN203614809U (en) | 2013-10-25 | 2013-10-25 | Wet-type electromagnetic directional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614809U true CN203614809U (en) | 2014-05-28 |
Family
ID=50767457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320666380.3U Expired - Fee Related CN203614809U (en) | 2013-10-25 | 2013-10-25 | Wet-type electromagnetic directional valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614809U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253158A (en) * | 2016-12-28 | 2018-07-06 | 比亚迪股份有限公司 | Flow control valve and with its fork truck |
| CN117282189A (en) * | 2023-11-27 | 2023-12-26 | 天泓环境科技有限责任公司 | Be applied to self-cleaning filter that contains grease particulate matter waste gas |
-
2013
- 2013-10-25 CN CN201320666380.3U patent/CN203614809U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253158A (en) * | 2016-12-28 | 2018-07-06 | 比亚迪股份有限公司 | Flow control valve and with its fork truck |
| CN117282189A (en) * | 2023-11-27 | 2023-12-26 | 天泓环境科技有限责任公司 | Be applied to self-cleaning filter that contains grease particulate matter waste gas |
| CN117282189B (en) * | 2023-11-27 | 2024-01-30 | 天泓环境科技有限责任公司 | Be applied to self-cleaning filter that contains grease particulate matter waste gas |
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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: 20140528 Termination date: 20151025 |
|
| EXPY | Termination of patent right or utility model |