CN107489788B - Efficient electromagnetic reversing valve - Google Patents
Efficient electromagnetic reversing valve Download PDFInfo
- Publication number
- CN107489788B CN107489788B CN201710771482.4A CN201710771482A CN107489788B CN 107489788 B CN107489788 B CN 107489788B CN 201710771482 A CN201710771482 A CN 201710771482A CN 107489788 B CN107489788 B CN 107489788B
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- Prior art keywords
- valve
- electromagnet
- oil
- spring
- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0603—Multiple-way valves
- F16K31/061—Sliding valves
- F16K31/0613—Sliding valves with cylindrical slides
Abstract
The application discloses a high-efficiency electromagnetic reversing valve, which comprises a valve body, wherein a valve core is arranged in the valve body, a first electromagnet is arranged on one side of the valve body, a second electromagnet is arranged on the other side of the valve body, the first electromagnet and the second electromagnet are respectively matched with the valve core and can respectively push the valve core to displace in the valve body, an oil port A, an oil port B, an oil port P and an oil port T are sequentially arranged on the valve body, and a unidirectional assembly for avoiding the oil port P from being interfered by load pressure is arranged on the oil port P. The application has compact integral structure, simple processing, good sealing performance, little internal leakage and no blocking phenomenon, meets the working requirements, meets the cost, is applicable to various functional channels of the electromagnetic directional valve, and is easy to recoil when the oil cylinder is in P-way A or P-way B, and the oil cylinder is not easy to run and can not interfere other parts of the hydraulic system if the oil cylinder is locked in one way at the side of the P cavity.
Description
Technical Field
The application relates to a reversing valve, in particular to a high-efficiency electromagnetic reversing valve.
Background
Referring to fig. 1, if an electromagnetic directional valve is used in a hydraulic system and a P port is required to have a directional cut-off function, so that pressure impact caused by sudden load rise is prevented from interfering with the whole hydraulic system, a check valve needs to be additionally arranged before the electromagnetic directional valve 110 is entered, and a stacked check valve 120 is generally used for combination.
Disclosure of Invention
The present application is directed to solving the above-described problems, thereby providing an efficient electromagnetic directional valve.
In order to achieve the above purpose, the technical scheme of the application is as follows:
the utility model provides an efficient electromagnetic directional valve, electromagnetic directional valve includes a valve body, be equipped with the case in the valve body, valve body one side is equipped with first electro-magnet, and the opposite side is equipped with the second electro-magnet, first electro-magnet and second electro-magnet cooperate with the case respectively, can promote the case displacement in the valve body respectively, be equipped with A hydraulic fluid port, B hydraulic fluid port, P hydraulic fluid port and T hydraulic fluid port on the valve body in proper order, be equipped with the one-way subassembly that is used for avoiding P hydraulic fluid port to receive the load pressure interference on the P hydraulic fluid port.
In a preferred embodiment of the application, a first internal thread corresponding to and matched with a first electromagnet is arranged on the left side of the valve body, a second internal thread corresponding to and matched with a second electromagnet is arranged on the right side of the valve body, a first setting groove for setting a first sealing ring is arranged on the first internal thread, and a second setting groove for setting a second sealing ring is arranged on the second internal thread.
In a preferred embodiment of the present application, a first inner hole is provided in the first electromagnet, a first push rod is provided in the first inner hole, and the first push rod is connected with the left side of the valve core in a matching way.
In a preferred embodiment of the application, a first spring and a first gasket are arranged between the first electromagnet and the valve body, the first gasket is arranged on the left side of the valve core, the first spring is sleeved on the first push rod, one end of the first spring is connected with the first gasket, and the other end of the first spring is arranged in the first inner hole.
In a preferred embodiment of the present application, a second inner hole is provided in the second electromagnet, and a second push rod is provided in the second inner hole, and the second push rod is connected with the right side of the valve core in a matching manner.
In a preferred embodiment of the application, a second spring and a second gasket are arranged between the second electromagnet and the valve body, the second gasket is arranged on the right side of the valve core, the second spring is sleeved on the second push rod, one end of the second spring is connected with the second gasket, and the other end of the second spring is arranged in the second inner hole.
In a preferred embodiment of the application, the unidirectional assembly is composed of a unidirectional valve sleeve, a spring, a unidirectional valve core, a unidirectional valve seat and a third sealing ring, wherein the unidirectional valve seat is arranged on a P oil port of the valve body, one end of the unidirectional valve core is connected with the unidirectional valve seat, the other end of the unidirectional valve core is inserted in the unidirectional valve sleeve, and the spring is sleeved on the unidirectional valve core.
In a preferred embodiment of the present application, the unidirectional valve seat is a block with a rectangular cross section, the valve seat is provided with an oil hole, the oil hole is communicated with the P oil hole, an oil sealing hole is arranged on the end surface of the top end of the oil hole, two sides of the bottom surface of the valve seat are respectively provided with a sealing ring groove, and a third sealing ring is arranged in the sealing ring groove.
In a preferred embodiment of the present application, the unidirectional valve core includes a rod body with a rectangular cross section, the top end of the rod body can be inserted into the unidirectional valve sleeve, the bottom end of the rod body is provided with a first step, one end of the spring can be arranged on the first step, the bottom end of the first step is provided with a second step, the bottom end of the second step is provided with an oil sealing end, and the oil sealing end is in sealing connection with the oil sealing port.
The beneficial effects of the application are as follows:
the application has compact integral structure, simple processing, good sealing performance, little internal leakage and no blocking phenomenon, meets the working requirements, meets the cost, is applicable to various functional channels of the electromagnetic directional valve, and is easy to recoil when the oil cylinder is in P-way A or P-way B, and the oil cylinder is not easy to run and can not interfere other parts of the hydraulic system if the oil cylinder is locked in one way at the side of the P cavity.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a conventional electromagnetic directional valve;
FIG. 2 is a schematic diagram of the structure of the present application;
FIG. 3 is a cross-sectional view in the M-M direction of FIG. 2;
FIG. 4 is a schematic structural view of a one-way valve seat;
FIG. 5 is a schematic structural view of a one-way valve cartridge;
fig. 6 is a schematic structural view of the one-way valve sleeve.
Detailed Description
The application is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the application easy to understand.
Referring to fig. 2 to 6, the efficient electromagnetic reversing valve provided by the application comprises a valve body 200, wherein a valve core 300 is arranged in the valve body 200, a first electromagnet 410 is arranged on one side of the valve body 200, a second electromagnet 420 is arranged on the other side of the valve body, the first electromagnet 410 and the second electromagnet 420 are respectively matched with the valve core 300, the valve core 300 can be respectively pushed to displace in the valve body 200, an oil port a, an oil port B, an oil port P and an oil port T are sequentially arranged on the valve body 200, and the communication between each oil port and a flow passage on the valve body 200 can be realized by pushing the displacement of the valve core 300.
A first internal thread corresponding to the first electromagnet 410 is provided on the left side of the valve body 200, a second internal thread corresponding to the second electromagnet 420 is provided on the right side of the valve body, a first setting groove for setting the first sealing ring 430 is provided on the first internal thread, and a second setting groove for setting the second sealing ring 440 is provided on the second internal thread.
In this way, the first sealing ring 430 and the second sealing ring 440 are placed to achieve tightness between the first electromagnet 410 and the second electromagnet 420 and the valve body 200, and prevent the oil from leaking.
A first inner hole is arranged in the first electromagnet 410, a first push rod 411 is arranged in the first inner hole, the first push rod 411 is connected with the left side of the valve core 300 in a matching way, and the first electromagnet 410 can push the valve core 300 to move rightwards through the first push rod 411.
A first inner hole is arranged in the second electromagnet 420, a second push rod 421 is arranged in the second inner hole, the second push rod 421 is connected with the right side of the valve core 300 in a matching way, and the second electromagnet 420 can push the valve core 300 to move leftwards through the second push rod 421.
In addition, a first spring 450 and a first washer 460 are provided between the first electromagnet 410 and the valve body 200.
The first gasket 460 is provided on the left side of the valve cartridge 300, which is for partitioning the valve cartridge 300 and the spring 450, preventing the valve cartridge 300 from moving leftwards in the electromagnet-powered state.
The first spring 450 is sleeved on the first push rod 411, and is used for resetting the second electromagnet 420, one end of the first spring 450 is connected with the first gasket 460, the other end of the first spring is arranged in the first inner hole, and when the magnetism on the second electromagnet 420 disappears, the first spring 450 can be restored, so that the second electromagnet 420 is rebounded to the original position.
Also, a second spring 470 and a second washer 480 are provided between the second electromagnet 420 and the valve body 200.
The second gasket 480 is provided at the left side of the valve cartridge 300, and serves to separate the valve cartridge 300 and the spring 470, preventing the valve cartridge 300 from moving to the right in the electromagnet-powered state.
The second spring 470 is sleeved on the second push rod 421, and is used for resetting the first electromagnet 410, one end of the second spring 470 is connected with the second gasket 480, the other end of the second spring 470 is arranged in the second inner hole, and when the magnetism on the first electromagnet 410 disappears, the second spring 470 can be restored, so that the first electromagnet 410 is rebounded to the original position.
In addition, a sealing groove is formed in the bottom surface of the valve body 200, and a fourth sealing ring 490 is arranged in the sealing groove, wherein the fourth sealing ring 490 is used for preventing oil from leaking outside the oil ports A, B, P and T.
The application is provided with the unidirectional component 500 on the valve body 200 and positioned on the P oil port, and the unidirectional component 500 is used for avoiding the P oil port from being interfered by load pressure.
The check assembly 500 is comprised of a check valve sleeve 510, a spring 520, a check valve core 530, a check valve seat 540, and a third seal 550.
The check valve seat 540 is used for installing the check valve core 530, and is a block with a rectangular section, an oil hole 541 is formed in the middle of the block, and the oil hole 541 is communicated with the P oil port, so that oil entering the P oil port can enter the check valve seat 540 through the oil hole 541, and can enter other oil channels.
The two sides of the bottom surface of the one-way valve seat 540 are respectively provided with a sealing ring groove 543, and a third sealing ring 550 is arranged in the sealing ring groove 543, so that the sealing performance of the one-way valve seat 540 can be ensured by the third sealing ring 550 during installation.
An oil seal port 542 is provided at the end surface of the tip end of the oil hole 541.
One-way valve core 530 has one end seated on one-way valve seat 540 and the other end inserted within one-way valve housing 510.
The unidirectional valve core 530 specifically includes a rod 531 with a rectangular cross section, a first step 532 is disposed at the bottom end of the rod 531, the first step 532 is used for limiting the spring 520, and one end of the spring 520 can be fixed on the first step 532.
A second step 533 is provided at the bottom end of the first step 532, and the second step 533 is for increasing the strength of the oil-sealing end 534.
The bottom surface of the second step 533 is provided with an oil sealing end 534, and the oil sealing end 534 is in sealing connection with the oil sealing port 542, so that when one end of the unidirectional valve core 530 is arranged on the unidirectional valve seat 540, the oil sealing end 534 at the bottommost end of the unidirectional valve core 530 is just arranged in the oil sealing port 542 in a sealing way, and when the P oil port is subjected to load pressure, pressure oil at the upper end of the unidirectional valve core 530 is separated by the oil sealing end 534 and cannot enter the oil sealing port 542, and therefore cannot enter the P oil port.
In addition, in order to further improve the sealing property, the oil seal end 534 and the oil seal port 542 are sealed with a spherical surface.
The spring 520 is sleeved on the unidirectional valve core 530, one end of the spring is arranged on the first step 532, the other end of the spring is fixed in the unidirectional valve sleeve 510, when the pressure received by the bottom of the unidirectional valve core 530 is greater than the elastic force of the spring 520, the unidirectional valve core 530 can overcome the elastic force of the spring 520 to displace upwards, and when the pressure received by the bottom of the unidirectional valve core 530 is less than the elastic force of the spring 520, the unidirectional valve core 530 is fixed at the upper end of the unidirectional valve seat 540.
The one-way valve sleeve 510 is provided with a cavity 511 in the one-way valve sleeve 510, and the rod 531 is inserted into the cavity 511.
The following is the working principle of the application:
in the non-energized state, the valve core 300 is kept at the middle position by the first spring 450 and the second spring 470 at the two sides of the valve core, and at the moment, the oil port A, the oil port B, the oil port P and the oil port T are not communicated, and the displacement of the valve core 300 is controlled by the first electromagnet 410 and the second electromagnet 420;
when the first electromagnet 410 is electrified, the force of the first electromagnet 410 is acted on the valve core 300 through the first push rod 411 to push the valve core 300 from the middle position to the right end position, so that oil flows from the port P to the port B and from the port A to the port T;
when the second electromagnet 420 is electrified, the force of the second electromagnet 420 is acted on the valve core 300 through the second push rod 421 to push the valve core 300 from the middle position to the left end position, so that oil flows from the port P to the port A and from the port B to the port T;
when both the first electromagnet 410 and the second electromagnet 420 are de-energized, the valve spool 300 is pushed to the initial position by the first spring 450 and the second spring 470 on both sides.
When the pressure of the oil entering from the P oil port is greater than the elastic force of the spring 520, the oil can push the one-way valve core 530 to overcome the elastic force of the spring 520 and move upwards, at this time, the oil sealing end 534 at the bottommost end of the one-way valve core 530 can be separated from the oil sealing port 542, and at this time, the oil can flow into the P cavity;
if the pressure of the P cavity is higher than the pressure of the P oil port due to load pressure impact, the unidirectional valve core 530 is propped against the unidirectional valve seat 540, at this time, the oil sealing end 534 at the bottommost end of the unidirectional valve core 530 is just sealed and arranged in the oil sealing port 542, at this time, the unidirectional valve core 530 is reversely blocked, and the load pressure impact is not conducted to other parts of the hydraulic system through the P oil port, thereby avoiding impact pressure interference.
The foregoing has shown and described the basic principles and main features of the present application and the advantages of the present application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (6)
1. The efficient electromagnetic reversing valve is characterized by comprising a valve body, wherein a valve core is arranged in the valve body, a first electromagnet is arranged on one side of the valve body, a second electromagnet is arranged on the other side of the valve body, the first electromagnet and the second electromagnet are respectively matched with the valve core and can respectively push the valve core to displace in the valve body, an oil port A, an oil port B, an oil port P and an oil port T are sequentially arranged on the valve body, and a unidirectional component for avoiding the oil port P from being interfered by load pressure is arranged on the oil port P; the left side of the valve body is provided with a first internal thread correspondingly matched with the first electromagnet, the right side of the valve body is provided with a second internal thread correspondingly matched with the second electromagnet, the first internal thread is provided with a first placement groove for placing a first sealing ring, and the second internal thread is provided with a second placement groove for placing a second sealing ring;
the one-way assembly consists of a one-way valve sleeve, a spring, a one-way valve core, a one-way valve seat and a third sealing ring, the one-way valve seat is arranged on a P oil port of the valve body, one end of the one-way valve core is connected with the one-way valve seat, the other end of the one-way valve core is inserted in the one-way valve sleeve, and the spring is sleeved on the one-way valve core; the one-way valve seat is a block with a rectangular cross section, the valve seat is provided with an oil hole, the oil hole is communicated with a P oil hole, an oil sealing hole is formed in the end face of the top end of the oil hole, sealing ring grooves are respectively formed in two sides of the bottom surface of the valve seat, and a third sealing ring is arranged in each sealing ring groove.
2. The efficient electromagnetic reversing valve according to claim 1, wherein a first inner hole is formed in the first electromagnet, a first push rod is arranged in the first inner hole, and the first push rod is connected with the left side of the valve core in a matched mode.
3. The efficient electromagnetic reversing valve according to claim 2, wherein a first spring and a first gasket are arranged between the first electromagnet and the valve body, the first gasket is arranged on the left side of the valve core, the first spring is sleeved on the first push rod, one end of the first spring is connected with the first gasket, and the other end of the first spring is arranged in the first inner hole.
4. The efficient electromagnetic reversing valve according to claim 1, wherein a second inner hole is formed in the second electromagnet, a second push rod is arranged in the second inner hole, and the second push rod is connected with the right side of the valve core in a matched mode.
5. The efficient electromagnetic reversing valve according to claim 4, wherein a second spring and a second gasket are arranged between the second electromagnet and the valve body, the second gasket is arranged on the right side of the valve core, the second spring is sleeved on the second push rod, one end of the second spring is connected with the second gasket, and the other end of the second spring is arranged in the second inner hole.
6. The efficient electromagnetic reversing valve according to claim 1, wherein the unidirectional valve core comprises a rod body with a rectangular cross section, the top end of the rod body can be inserted into the unidirectional valve sleeve, the bottom end of the rod body is provided with a first step, one end of the spring can be arranged on the first step, the bottom end of the first step is provided with a second step, the bottom end of the second step is provided with an oil sealing end, and the oil sealing end is in sealing connection with the oil sealing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771482.4A CN107489788B (en) | 2017-08-31 | 2017-08-31 | Efficient electromagnetic reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710771482.4A CN107489788B (en) | 2017-08-31 | 2017-08-31 | Efficient electromagnetic reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107489788A CN107489788A (en) | 2017-12-19 |
| CN107489788B true CN107489788B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710771482.4A Active CN107489788B (en) | 2017-08-31 | 2017-08-31 | Efficient electromagnetic reversing valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN107489788B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483117A (en) * | 2021-07-29 | 2021-10-08 | 涌镇液压机械（上海）有限公司 | Reversing valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2753331Y (en) * | 2004-12-17 | 2006-01-25 | 上海华岛液压设备制造有限公司 | Electromagnetic integrating change valve for operating table |
| CN201794842U (en) * | 2010-06-02 | 2011-04-13 | 大连兴龙液压有限公司 | Precontrolled electric one-way speed regulating valve |
| CN104165166A (en) * | 2014-07-30 | 2014-11-26 | 株洲中研流体技术有限公司 | Compact-type telescopic oil cylinder changeover valve set |
| CN106015140A (en) * | 2016-06-11 | 2016-10-12 | 宁波文泽机电技术开发有限公司 | Balance valve |
| CN106439109A (en) * | 2016-11-08 | 2017-02-22 | 合肥协力液压科技有限公司 | Electromagnetic direct-push type reversing valve |
| CN207229835U (en) * | 2017-08-31 | 2018-04-13 | 上海立新液压有限公司 | A kind of efficient solenoid directional control valve |
-
2017
- 2017-08-31 CN CN201710771482.4A patent/CN107489788B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2753331Y (en) * | 2004-12-17 | 2006-01-25 | 上海华岛液压设备制造有限公司 | Electromagnetic integrating change valve for operating table |
| CN201794842U (en) * | 2010-06-02 | 2011-04-13 | 大连兴龙液压有限公司 | Precontrolled electric one-way speed regulating valve |
| CN104165166A (en) * | 2014-07-30 | 2014-11-26 | 株洲中研流体技术有限公司 | Compact-type telescopic oil cylinder changeover valve set |
| CN106015140A (en) * | 2016-06-11 | 2016-10-12 | 宁波文泽机电技术开发有限公司 | Balance valve |
| CN106439109A (en) * | 2016-11-08 | 2017-02-22 | 合肥协力液压科技有限公司 | Electromagnetic direct-push type reversing valve |
| CN207229835U (en) * | 2017-08-31 | 2018-04-13 | 上海立新液压有限公司 | A kind of efficient solenoid directional control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107489788A (en) | 2017-12-19 |
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