CN210715395U - Double-flow-direction adjustable micro electromagnetic valve set - Google Patents
Double-flow-direction adjustable micro electromagnetic valve set Download PDFInfo
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- CN210715395U CN210715395U CN201921628334.8U CN201921628334U CN210715395U CN 210715395 U CN210715395 U CN 210715395U CN 201921628334 U CN201921628334 U CN 201921628334U CN 210715395 U CN210715395 U CN 210715395U
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Abstract
The utility model relates to a double-flow-direction adjustable micro electromagnetic valve group, which belongs to an electromagnetic valve group, comprising a motor, an oil pump and a valve body, wherein the oil pump is communicated with an oil inlet of the valve body and an oil tank, an oil outlet of the valve body flows back to the oil tank, an oil inlet of the valve body is communicated with a first electromagnetic stop valve and a fourth electromagnetic stop valve, the first electromagnetic stop valve is communicated with an inlet of an oil cylinder and a second electromagnetic stop valve through a first check valve and a first throttle screw, the fourth electromagnetic stop valve is communicated with an outlet of the oil cylinder and a third electromagnetic stop valve through a second check valve and a third throttle screw, the second electromagnetic stop valve flows back to the oil outlet through the second throttle screw, the third electromagnetic stop valve flows back to the oil outlet through, the flow of the oil cylinder inlet and the oil cylinder outlet can be independently controlled, and the stepless speed regulation function of single station action of the operating table is realized.
Description
Technical Field
The utility model relates to an electromagnetism valves, in particular to miniature electromagnetism valves with adjustable double flow is to.
Background
The single station action of the operating bed is realized by the extension and retraction of a hydraulic cylinder for controlling the action of the operating bed, and the extension and retraction are in two directions; when the operating table is debugged, the operating speed of a single station needs to be adjusted to achieve the optimal state during operation, so that the operating table can enter an operating room for operation, and the treatment experience of a patient is prevented from being influenced by too high speed; the speed of a single station of the operating table is adjusted by controlling the telescopic speed of the hydraulic cylinder, and the telescopic speed of the hydraulic cylinder is controlled by the flow of oil entering the oil port, so that the extending and retracting flow of the hydraulic cylinder is controlled, and the speed adjustment of the station action of the operating table can be realized.
As shown in fig. 1, the motor 1 drives the oil pump 11 to supply oil, oil enters the electromagnetic directional valve 202 through the check valve 201, system pressure is set by the overflow valve 7, and after the left end of the electromagnetic directional valve 202, the fifth electromagnetic stop valve 204 and the sixth electromagnetic stop valve 205 are energized, high-pressure oil enters the hydraulic cylinder piston cavity 207 through the electromagnetic directional valve 202, the fifth electromagnetic stop valve 204 and the first constant value damper 206; oil in the piston rod cavity 207 of the hydraulic cylinder flows back to the oil tank 12 through the second constant value damping 208, the sixth electromagnetic stop valve 205 and the electromagnetic directional valve 202, and the piston rod of the oil cylinder extends out; after the right side end of the electromagnetic directional valve 202, the fifth electromagnetic stop valve 204 and the sixth electromagnetic stop valve 205 are electrified, high-pressure oil enters a piston rod cavity 207 of the hydraulic cylinder through the electromagnetic directional valve 202, the sixth electromagnetic stop valve 205 and the second constant value damping 208; oil in the piston rod cavity 207 of the hydraulic cylinder flows back to the oil tank 12 through the first constant-value damper 206, the fifth electromagnetic stop valve 204 and the electromagnetic directional valve 202, and the piston rod of the hydraulic cylinder retracts.
The existing scheme is that two constant-value dampers are additionally arranged at the positions of two oil ports of a hydraulic cylinder, so that the flow of oil entering the oil cylinder is limited, and the speed of the oil cylinder is controlled, but the constant-value damper structure can only control the oil cylinder to run at a fixed speed, and the customized damper must be replaced when the speed of the control oil cylinder is required to be changed. Because the fixed-value damping is inserted on the two oil ports of the oil cylinder in a threaded manner, the disassembly is troublesome, and secondary pollution of hydraulic oil is easily caused; and the operation bed does not allow the operation after the operation bed is debugged and enters the operating room.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a miniature solenoid valve group with adjustable two-way flow, through the cooperation of each electromagnetism stop valve, each check valve and each throttle screw in the valve body, the flexible speed of effectively controlled hydro-cylinder.
The technical scheme for realizing the purpose is as follows:
the utility model provides a miniature electromagnetic valve group with adjustable two-way flow, which comprises a valve body, wherein the valve body is provided with an oil inlet and an oil outlet, one end of the oil inlet is communicated with an oil tank through an oil pump, the oil pump is connected with a motor, and the other end of the oil inlet is communicated with a first electromagnetic stop valve and a fourth electromagnetic stop valve in the valve body;
the first electromagnetic stop valve is communicated with a second electromagnetic stop valve and an oil cylinder inlet sequentially through a first one-way valve and a first throttling screw, and the second electromagnetic stop valve is communicated with the oil tank sequentially through a second throttling screw and the oil outlet;
the fourth electromagnetic stop valve is communicated with a third electromagnetic stop valve and an oil cylinder outlet sequentially through a second one-way valve and a third throttling screw, and the third electromagnetic stop valve is communicated with the oil tank sequentially through a fourth throttling screw and the oil outlet;
an overflow valve is communicated between the oil inlet and the oil outlet and is positioned in the valve body.
Further, the overflow valve includes a pressure regulating case and a pressure regulating nut, the overflow valve is equipped with the intercommunication the oil inlet with the first through-hole of oil-out, first through-hole is close to oil inlet department is equipped with a bottom hole, the pressure regulating case with the bottom hole cooperatees, forms sealedly, the pressure regulating nut is located first through-hole is kept away from the one end of bottom hole, the pressure regulating nut with be connected with the pressure regulating spring between the pressure regulating case.
Furthermore, the joint of the pressure regulating nut and the first through hole is provided with an overflow valve sealing ring, so that the oil is prevented from leaking out of the first through hole.
Furthermore, the first check valve comprises a check valve body, a plug with a guide function and a support sleeve, a valve cavity is arranged in the check valve body, one side of the valve cavity is communicated with the first electromagnetic stop valve through a valve hole, and the other side of the valve cavity is communicated with the first throttling screw;
the supporting sleeve is matched with the valve hole to form sealing, one end of the supporting sleeve, which is far away from the valve hole, is provided with a first blind hole, the plug with the guide function is provided with an installation end and a guide end, the installation end is far away from the valve hole and is in screwed connection with the check valve body, the guide end is located in the first blind hole, a jacking spring is connected between the supporting sleeve and the installation end, and the supporting sleeve is jacked through the jacking spring, so that oil can only flow to the first check valve from the first electromagnetic stop valve and can not flow back.
Furthermore, a pressing gasket is arranged at the joint of the support sleeve and the valve hole, and a sealing flat gasket is arranged at the joint of the mounting end and the check valve body to prevent oil leakage.
Furthermore, the first electromagnetic stop valve comprises an electromagnet guide sleeve, an electromagnetic valve core and an electromagnet assembly, the electromagnet guide sleeve is screwed with the one-way valve body, the electromagnet guide sleeve is also provided with a second blind hole which is over against the one-way valve body, the second blind hole is communicated with the oil inlet, and the second blind hole is also provided with an electromagnetic valve bottom hole communicated with the valve hole;
the electromagnetic valve core is positioned in the second blind hole, the top end of the electromagnetic valve core is provided with an electromagnetic valve core pad which is over against the electromagnetic valve bottom hole, the bottom end of the electromagnetic valve core is provided with a third blind hole, an electromagnetic reset spring is arranged in the third blind hole, the third blind hole is provided with a valve core hole which is communicated with the second blind hole, when the electromagnetic valve core is not electrified, the electromagnetic reset spring tightly presses the electromagnetic valve core pad on the electromagnetic valve bottom hole through the electromagnetic valve core to form sealing, the oil between the first check valve and the first electromagnetic stop valve is stopped, after the electromagnetic valve is electrified, the electromagnetic valve core pad moves back along with the electromagnetic valve core under the common acting force of the oil and the electromagnetic reset spring and is separated from the electromagnetic valve bottom hole, and the first check valve is communicated with the first electromagnetic stop valve oil circuit;
the electromagnet assembly is sleeved on the electromagnet guide sleeve, and one end, far away from the electromagnetic valve bottom hole, of the electromagnet assembly is fixedly connected with the electromagnet guide sleeve through a fixing screw.
Furthermore, the electromagnetic valve core is made of polytetrafluoroethylene.
Furthermore, the first throttling screw is located in a screw hole, the screw hole is communicated with the first one-way valve, the screw hole is communicated with the oil cylinder inlet through a second through hole, a conical rod is arranged at the top end of the first throttling screw, the bottom end of the first throttling screw is in sealing fit with the screw hole, and the conical rod is matched with the second through hole.
Furthermore, the valve body is made of aluminum alloy, so that the weight of the valve body is reduced, and the requirement of lightweight design of medical instruments is met.
Has the advantages that: compared with the prior art, the utility model is different in that the utility model provides a miniature electromagnetic valve set with adjustable two-way flow, which comprises a motor, an oil pump and a valve body, wherein the oil pump is communicated with an oil inlet of the valve body and an oil tank, an oil outlet of the valve body flows back to the oil tank, the oil inlet of the valve body is communicated with a first electromagnetic stop valve and a fourth electromagnetic stop valve, the first electromagnetic stop valve is communicated with an oil inlet of the oil cylinder and a second electromagnetic stop valve through a first one-way valve and a first throttle screw, the fourth electromagnetic stop valve is communicated with an oil outlet of the oil cylinder and a third electromagnetic stop valve through a second one-way valve and a third throttle screw, the second electromagnetic stop valve flows back to the oil outlet through a second throttle screw, the third electromagnetic stop valve flows back, the flow of the oil cylinder inlet and the oil cylinder outlet can be independently controlled, and the stepless speed regulation function of single station action of the operating table is realized.
Drawings
Fig. 1 is a working principle diagram of the station movement of the operating table in the prior art.
Fig. 2 is the working principle diagram of the miniature electromagnetic valve set with adjustable bidirectional flow rate of the utility model.
Fig. 3 is a bottom view of a two-way flow adjustable micro solenoid valve block.
Fig. 4 is a sectional view taken along the direction E-E in fig. 3.
Fig. 5 is a front view of a two-way flow adjustable micro solenoid valve block.
Fig. 6 is a cross-sectional view taken along line D-D in fig. 5.
Wherein, 201-a one-way valve, 202-an electromagnetic directional valve, 204-a fifth electromagnetic stop valve, 205-a sixth electromagnetic stop valve, 206-a first constant damping, 207-a hydraulic cylinder piston cavity, 208-a second constant damping, 1-a motor, 11-an oil pump, 12-an oil tank, 2-a valve body, 21-an oil inlet, 22-an oil outlet, 31-a first electromagnetic stop valve, 311-an electromagnet guide sleeve, 312-an electromagnetic valve core, 313-an electromagnet assembly, 314-a second blind hole, 315-an electromagnetic valve bottom hole, 316-an electromagnetic valve core pad, 317-an electromagnet return spring, 318-a valve core hole, 319-a fixing screw, 32-a second electromagnetic stop valve, 33-a third electromagnetic stop valve, 34-a fourth electromagnetic stop valve, 41-a first check valve, 411-a check valve body, 412-a guide plug, 413-a support sleeve, 414-a valve cavity, 415-a valve hole, 416-a first blind hole, 417-a jacking spring, 42-a second check valve, 51-a first throttling screw, 511-a screw hole, 512-a second through hole, 513-a conical rod, 52-a second throttling screw, 53-a third throttling screw, 54-a fourth throttling screw, 61-a cylinder inlet, 62-a cylinder outlet, 7-an overflow valve, 71-a pressure regulating valve core, 72-a pressure regulating nut, 73-a first through hole, 74-a bottom hole, 75-a pressure regulating spring and 76-an overflow valve sealing ring.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Referring to fig. 2, the utility model provides a two-way flow adjustable miniature solenoid valve group, including a valve body 2, the valve body 2 has an oil inlet 21 and an oil outlet 22, one end of oil inlet 21 is connected with oil tank 12 through an oil pump 11, the oil pump 11 is connected with motor 1, the other end of oil inlet 21 communicates a first electromagnetism stop valve 31 and a fourth electromagnetism stop valve 34 in the valve body 2;
the first electromagnetic stop valve 31 is communicated with the second electromagnetic stop valve 32 and the cylinder inlet 61 sequentially through a first one-way valve 41 and a first throttle screw 51, and the second electromagnetic stop valve 32 is communicated with the oil tank 12 sequentially through a second throttle screw 52 and the oil outlet 22;
the fourth electromagnetic stop valve 34 is communicated with the third electromagnetic stop valve 33 and the cylinder outlet 62 sequentially through a second one-way valve 42 and a third throttling screw 53, and the third electromagnetic stop valve 33 is communicated with the oil tank 12 sequentially through a fourth throttling screw 54 and the oil outlet 22;
an overflow valve 7 is communicated between the oil inlet 21 and the oil outlet 22, and the overflow valve 7 is positioned in the valve body 2.
As a preferred embodiment of the present invention, referring to fig. 3 and 4, the overflow valve 7 includes a pressure regulating valve core 71 and a pressure regulating nut 72, the overflow valve 7 is provided with a communication between the oil inlet 21 and the first through hole 73 of the oil outlet 22, the first through hole 73 is close to the oil inlet 21 and is provided with a bottom hole 74, the pressure regulating valve core 71 and the bottom hole 74 cooperate to form a seal, the pressure regulating nut 72 is located the first through hole 73 is far away from one end of the bottom hole 74, the pressure regulating nut 72 and the pressure regulating valve core 71 are connected with a pressure regulating spring 75 therebetween.
Preferably, a relief valve sealing ring 76 is arranged at the joint of the pressure regulating nut 72 and the first through hole 73 to prevent the oil from leaking out of the first through hole 73.
As a preferred embodiment of the present invention, referring to fig. 5 and 6, the first check valve 41 includes a check valve body 411, a plug 412 with a guide and a support sleeve 413, a valve cavity 414 is disposed in the check valve body 411, one side of the valve cavity 414 is connected to the first electromagnetic stop valve 31 through a valve hole 415, and the other side of the valve cavity 414 is connected to the first throttle screw 51;
the supporting sleeve 413 is matched with the valve hole 415 to form sealing, one end, far away from the valve hole 415, of the supporting sleeve 413 is provided with a first blind hole 416, the plug 412 with guiding function is provided with an installation end and a guiding end, the installation end is far away from the valve hole and is screwed with the check valve body 411, the guiding end is located in the first blind hole 416, a jacking spring 417 is connected between the supporting sleeve 413 and the installation end, and under the guiding function of the guiding end, the supporting sleeve 413 is jacked through the jacking spring 417, so that oil can only flow to the first check valve 41 from the first electromagnetic stop valve 31 and can not flow back.
Preferably, a pressure washer is disposed at a connection position of the support sleeve 413 and the valve hole 415, and a sealing flat washer is disposed at a connection position of the mounting end and the check valve body 411 to prevent oil leakage.
Preferably, the first electromagnetic stop valve 31 includes an electromagnet guide sleeve 311, an electromagnet spool 312 and an electromagnet closing member 313, the electromagnet guide sleeve 311 is screwed to the check valve body 411, the electromagnet guide sleeve 311 is provided with a second blind hole 314 facing the check valve body 411, the second blind hole 314 is communicated with the oil inlet 21, and the second blind hole 314 is provided with an electromagnet bottom hole 315 communicated with the valve hole 415;
the electromagnetic valve core 312 is located in the second blind hole 314, the top end of the electromagnetic valve core 312 is provided with an electromagnetic valve core pad 316 facing the electromagnetic valve bottom hole 315, the bottom end of the electromagnetic valve core 312 is provided with a third blind hole, an electromagnetic reset spring 317 is arranged in the third blind hole, the third blind hole is provided with a valve core hole 318 communicated with the second blind hole 312, when the electromagnetic valve core is not electrified, the electromagnetic reset spring 317 tightly presses the electromagnetic valve core pad 316 to the electromagnetic valve bottom hole 315 through the electromagnetic valve core 312 to form sealing, so that oil between the first check valve 41 and the first electromagnetic stop valve 31 is stopped, after the electromagnetic valve core pad 316 moves back along with the electromagnetic valve core 312 under the common acting force of the oil and the electromagnetic reset spring 317 and is separated from the electromagnetic valve bottom hole 315 after the electromagnetic valve is electrified, and the first check valve 41 is communicated with the first electromagnetic stop valve oil path 31;
the electromagnet closing piece 313 is sleeved on the electromagnet guide sleeve 311, and the electromagnet closing piece 313 and the electromagnet guide sleeve 311 are fixed at the right end through a fixing screw 319.
Preferably, the solenoid valve core 312 is made of teflon.
Preferably, the first throttle screw 51 is located in a screw hole 511, the screw hole 511 communicates with the first one-way valve 41, the screw hole 511 communicates with the cylinder inlet 61 through a second through hole 512, the top end of the first throttle screw 51 is provided with a tapered rod 513, the bottom end of the first throttle screw 51 is in sealing fit with the screw hole 511, and the tapered rod 513 is matched with the second through hole 512.
Preferably, the valve body 2 is made of aluminum alloy, so that the weight of the valve body is reduced, and the requirement of lightweight design of medical instruments is met.
Specifically, the motor drives the oil pump to supply oil to the system, oil flows into a sealing cavity of the first electromagnetic stop valve through an oil inlet of the valve body, and then enters a spring cavity of the electromagnetic valve core through a gap between the electromagnetic valve core and the electromagnet guide sleeve, and the electromagnetic valve core is tightly pressed at a bottom hole of the electromagnetic valve under the action of the oil and the electromagnet return spring, so that the oil at two ends of the first check valve and the first electromagnetic stop valve is stopped; when the electromagnet assembly is electrified, the electromagnetic valve core overcomes the acting force of an electromagnet return spring and slides rightwards under the electromagnetic action, the electromagnetic valve core pad is separated from the bottom hole of the electromagnetic valve, oil flows to the first check valve from the gap between the electromagnetic valve core pad and the bottom hole of the electromagnetic valve through the second blind hole, the acting force of the check valve for jacking the spring is overcome to push the check valve pressing gasket away from the conical sealing surface, and the oil enters the spring cavity, flows to the first throttling screw and enters the inlet of the oil cylinder through the regulated flow of the throttling screw; and oil at the outlet of the oil cylinder flows into a sealing cavity of the third electromagnetic stop valve, and according to the same principle, after the electromagnet assembly of the third electromagnetic stop valve is electrified, the oil enters an oil outlet of the valve body through the regulated flow of the fourth throttle screw. The first adjusting throttle screw can adjust the flow of oil entering the inlet of the oil cylinder, and the fourth adjusting throttle screw can adjust the flow of oil flowing out of the outlet of the oil cylinder. At the moment, the oil cylinder is in an extending state, and stepless speed regulation of the extending state of the oil cylinder can be realized through the first regulating throttle screw and the fourth throttle screw.
The operation of the retracted state of the cylinder is similar to the operation of the extended state of the cylinder.
It should be noted that, in the invention, the second electromagnetic cut-off valve, the third electromagnetic cut-off valve and the fourth electromagnetic cut-off valve have the same structure as the first electromagnetic cut-off valve; the second throttling screw, the third throttling screw and the fourth throttling screw have the same structure as the first throttling screw; the second one-way valve has the same structure as the first one-way valve.
It should be noted that the terms "first, second, third, fourth, fifth and sixth" in the present invention are used for descriptive purposes only, do not denote any order, are not to be construed as indicating or implying any relative importance, and are to be interpreted as names.
The above embodiments are merely preferred embodiments of the present disclosure, which are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present disclosure, should be included in the scope of the present disclosure.
Claims (9)
1. A double-flow-direction adjustable miniature electromagnetic valve set is characterized by comprising a valve body, wherein the valve body is provided with an oil inlet and an oil outlet, one end of the oil inlet is communicated with an oil tank through an oil pump, the oil pump is connected with a motor, and the other end of the oil inlet is communicated with a first electromagnetic stop valve and a fourth electromagnetic stop valve in the valve body;
the first electromagnetic stop valve is communicated with a second electromagnetic stop valve and an oil cylinder inlet sequentially through a first one-way valve and a first throttling screw, and the second electromagnetic stop valve is communicated with the oil tank sequentially through a second throttling screw and the oil outlet;
the fourth electromagnetic stop valve is communicated with a third electromagnetic stop valve and an oil cylinder outlet sequentially through a second one-way valve and a third throttling screw, and the third electromagnetic stop valve is communicated with the oil tank sequentially through a fourth throttling screw and the oil outlet;
an overflow valve is communicated between the oil inlet and the oil outlet and is positioned in the valve body.
2. The dual-flow-direction adjustable micro solenoid valve pack of claim 1, wherein:
the overflow valve includes a pressure regulating case and a pressure regulating nut, the overflow valve is equipped with the intercommunication the oil inlet with the first through-hole of oil-out, first through-hole is close to oil inlet department is equipped with a bottom outlet, the pressure regulating case with the bottom outlet cooperatees, the pressure regulating nut is located first through-hole is kept away from the one end of bottom outlet, the pressure regulating nut with be connected with pressure regulating spring between the pressure regulating case.
3. The dual-flow-direction adjustable micro solenoid valve pack of claim 2, wherein:
and an overflow valve sealing ring is arranged at the joint of the pressure regulating nut and the first through hole.
4. The dual-flow-direction adjustable micro solenoid valve pack of claim 1, wherein:
the first check valve comprises a check valve body, a plug with a guide function and a support sleeve, a valve cavity is arranged in the check valve body, one side of the valve cavity is communicated with the first electromagnetic stop valve through a valve hole, and the other side of the valve cavity is communicated with the first throttling screw;
the supporting sleeve is matched with the valve hole to form sealing, one end, far away from the valve hole, of the supporting sleeve is provided with a first blind hole, the plug with the guide function is provided with an installation end and a guide end, the installation end is far away from the valve hole and is in threaded connection with the one-way valve body, the guide end is located in the first blind hole, and a jacking spring is connected between the supporting sleeve and the installation end.
5. The dual-flow-direction adjustable micro solenoid valve pack of claim 4, wherein:
the supporting sleeve is provided with a pressure washer at the joint of the valve hole, and a sealing flat washer is arranged at the joint of the mounting end and the one-way valve body.
6. The dual-flow-direction adjustable micro solenoid valve pack of claim 4, wherein:
the first electromagnetic stop valve comprises an electromagnet guide sleeve, an electromagnetic valve core and an electromagnet assembly, the electromagnet guide sleeve is screwed with the one-way valve body, the electromagnet guide sleeve is also provided with a second blind hole which is over against the one-way valve body, the second blind hole is communicated with the oil inlet, and the second blind hole is also provided with an electromagnetic valve bottom hole communicated with the valve hole;
the electromagnetic valve core is positioned in the second blind hole, the top end of the electromagnetic valve core is provided with an electromagnetic valve core pad which is over against the bottom hole of the electromagnetic valve, the bottom end of the electromagnetic valve core is provided with a third blind hole, an electromagnet reset spring is arranged in the third blind hole, and the third blind hole is provided with a valve core hole communicated with the second blind hole;
the electromagnet assembly is sleeved on the electromagnet guide sleeve, and one end, far away from the electromagnetic valve bottom hole, of the electromagnet assembly is fixedly connected with the electromagnet guide sleeve through a fixing screw.
7. The dual-flow-direction adjustable micro solenoid valve pack of claim 6, wherein:
the electromagnetic valve core is made of polytetrafluoroethylene.
8. The dual-flow-direction adjustable micro solenoid valve pack of claim 1, wherein:
the first throttling screw is located in a screw hole, a conical rod is arranged at the top end of the first throttling screw, the bottom end of the first throttling screw is in sealing fit with the screw hole, the screw hole is communicated with the first one-way valve, the screw hole is communicated with the oil cylinder inlet through a second through hole, and the conical rod is matched with the second through hole.
9. The dual-flow-direction adjustable micro solenoid valve pack of claim 1, wherein:
the valve body is made of aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921628334.8U CN210715395U (en) | 2019-09-27 | 2019-09-27 | Double-flow-direction adjustable micro electromagnetic valve set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921628334.8U CN210715395U (en) | 2019-09-27 | 2019-09-27 | Double-flow-direction adjustable micro electromagnetic valve set |
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| Publication Number | Publication Date |
|---|---|
| CN210715395U true CN210715395U (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921628334.8U Active CN210715395U (en) | 2019-09-27 | 2019-09-27 | Double-flow-direction adjustable micro electromagnetic valve set |
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| CN (1) | CN210715395U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454802A (en) * | 2022-02-17 | 2022-05-10 | 郑州航空港区速达工业机械服务有限公司 | Novel mobile service vehicle |
-
2019
- 2019-09-27 CN CN201921628334.8U patent/CN210715395U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114454802A (en) * | 2022-02-17 | 2022-05-10 | 郑州航空港区速达工业机械服务有限公司 | Novel mobile service vehicle |
| CN114454802B (en) * | 2022-02-17 | 2023-10-20 | 郑州航空港区速达工业机械服务有限公司 | Mobile service vehicle |
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