CN113090771B - Direct-acting electromagnetic valve - Google Patents
Direct-acting electromagnetic valve Download PDFInfo
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- CN113090771B CN113090771B CN202110500181.4A CN202110500181A CN113090771B CN 113090771 B CN113090771 B CN 113090771B CN 202110500181 A CN202110500181 A CN 202110500181A CN 113090771 B CN113090771 B CN 113090771B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 160
- 229910052742 iron Inorganic materials 0.000 claims abstract description 77
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005381 potential energy Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
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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
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
Abstract
The invention discloses a direct-acting electromagnetic valve which comprises a valve body, a plug, a moving iron, a coil and a spring, wherein the plug, the moving iron, the coil and the spring are coaxially distributed in a valve body hole of the valve body; the valve body is provided with an inlet and an outlet which are respectively communicated with the valve body hole; the plug is fixed on the valve body; one end of the moving iron close to the plug is a tubular interface; through holes communicated with the inlet are formed in the periphery of the tubular interface; the spring drives the tubular interface to be hermetically extruded on the plug to realize the partition of the inlet and the outlet when the coil is powered off, and drives the tubular interface to be separated from the plug to realize the communication of the inlet and the outlet when the coil is powered on. The direct-acting electromagnetic valve effectively reduces the pressure difference stress area of the contact part of the moving iron and the plug by utilizing the tubular interface, correspondingly, the pressure difference force to be overcome when the valve body is opened is smaller, and the flowing path of the medium in the valve body is short, so that the operation requirements of large flow, high frequency, low energy consumption and smooth action can be met.
Description
Technical Field
The invention relates to the field of electromagnetic valves, in particular to a direct-acting electromagnetic valve.
Background
At present, electromagnetic valves with high frequency and large flow are needed in many fields.
The large flow cross section area is needed for realizing the large flow of the electromagnetic valve, and the large flow cross section area needs the electromagnetic valve to overcome larger pressure difference during reversing or sealing, so that the electromagnetic valve needs to adopt a high-power electromagnetic coil, and the high-power electromagnetic coil can greatly improve the energy consumption and the heat generation of the electromagnetic valve.
For this reason, the solenoid valves on the market generally adopt a pilot structure to cope with the above problems. The pilot structure can effectively reduce the pressure difference which needs to be overcome when the electromagnetic valve is reversed or sealed, and can avoid improving the power of the electromagnetic coil on the premise of ensuring the flow of the electromagnetic valve. Such a solenoid valve can be referred to fig. 1 to 3. In fig. 1 to 3, when the electromagnetic valve is powered off, the moving iron and the sealing gasket are pressed and attached under the action of the spring, and the inlets and outlets on the left side and the right side of the electromagnetic valve are not communicated. When the electromagnetic valve is electrified, the moving iron is pulled by the coil to move upwards, the gap is opened between the moving iron and the upper part of the sealing gasket, the branch gas which enters from the inlet of the electromagnetic valve and moves upwards along the gap between the moving iron and the valve body firstly enters the upper part of the sealing gasket and flows to the outlet of the electromagnetic valve through the through hole in the middle of the sealing gasket, and thus, the pressure difference between the upper side and the lower side of the sealing gasket is greatly reduced. Then, the moving iron can move upwards further by overcoming small pressure difference under the magnetic attraction of the coil, and simultaneously pulls the sealing gasket to move upwards, so that the inlet and the outlet of the electromagnetic valve are directly communicated under the sealing gasket.
The defect of the scheme is that when the coil attracts the moving iron, a part of branch air is firstly exhausted, so that the inlet and the outlet of the electromagnetic valve are directly communicated below the sealing gasket, and therefore the electromagnetic valve is in a normal operation state. Obviously, the action period of the solenoid valve is lengthened, the frequency is reduced, and a slight pause phenomenon occurs in the attraction process of the moving iron, so that the operation quality of the solenoid valve is affected.
Disclosure of Invention
The invention aims to provide a direct-acting electromagnetic valve which can meet the operation requirements of large flow, high frequency and low energy consumption, and the reversing and opening and closing actions of the electromagnetic valve are smooth and natural.
In order to achieve the purpose, the invention provides a direct-acting electromagnetic valve which comprises a valve body, a plug, a moving iron, a coil and a spring, wherein the plug, the moving iron, the coil and the spring are coaxially distributed in a valve body hole of the valve body; the valve body is provided with an inlet and an outlet which are respectively communicated with the valve body hole; the plug is fixed on the valve body; one end of the moving iron close to the plug is a tubular interface; through holes communicated with the inlet are formed in the periphery of the tubular interface;
the spring drives the tubular interface to be hermetically extruded on the plug to realize the partition of the inlet and the outlet when the coil is powered off, and the coil drives the tubular interface to be separated from the plug to realize the communication of the inlet and the outlet when the coil is powered on.
Preferably, the tubular interface is in particular a round tubular interface.
Preferably, the wall thickness of the circular tube-shaped interface is any value of 0.5 mm-1 mm.
Preferably, the plug is in a frustum shape with a smoothly tapered top end; the top end of the plug faces the tubular interface.
Preferably, the top end of the plug coincides with the central axis of the plug.
Preferably, the spring is arranged between the coil and the moving iron; and the movable iron is internally provided with an installation slot hole for the spring to be coaxially inserted in the movable iron.
Preferably, the moving iron is sequentially provided with a coil connecting end and a plug connecting end along the axial direction; the valve body hole comprises a first hole wall hermetically attached to the coil connecting end, a second hole wall surrounding the periphery of the through hole and a third hole wall surrounding the periphery of the plug connecting end;
the second hole wall and the outer wall of the moving iron form a first cavity; the third hole wall and the outer wall of the plug connecting end form a second cavity; the first cavity is hermetically separated from the second cavity; the inlet is communicated with the through hole through the first cavity.
Preferably, the first cavity communicates with a plurality of the through holes.
Compared with the prior art, the direct-acting electromagnetic valve provided by the invention comprises a valve body, a plug, a moving iron, a coil and a spring, wherein the plug, the moving iron, the coil and the spring are arranged in a valve body hole of the valve body and are coaxially distributed; the valve body is provided with an inlet and an outlet which are respectively communicated with the valve body hole; the plug is fixed on the valve body; one end of the moving iron, which is close to the plug, is a tubular interface; and through holes communicated with the inlets are formed in the periphery of the tubular interface.
When the direct-acting electromagnetic valve is used, the coil is combined with the spring to drive the tubular interface of the moving iron to be close to or far away from the plug. For example, when the coil is electrified, the moving iron is attracted, on one hand, the moving iron is attracted to drive the tubular interface to be separated from the plug, and therefore the inlet and the outlet are communicated; on the other hand, results in the spring accumulating elastic potential energy. Therefore, when the coil is powered off, the spring drives the tubular interface to extrude and seal the plug by utilizing the spring potential energy of the spring, so that the inlet and the outlet are separated.
When the tubular interface is close to and sealed and extruded on the plug, the medium entering the valve body hole from the inlet of the valve body can only enter the tubular interface from the through hole of the tubular interface and cannot flow out from the contact surface between the tubular interface and the plug, namely the valve body is in a closed state. On the contrary, when the tubular interface is far away from the plug, the medium entering the valve body hole from the inlet of the valve body flows outwards along the through hole of the tubular interface, the gap between the tubular interface and the plug and the outlet of the valve body in sequence, namely the valve body is in an open state.
Therefore, compared with the solenoid valve with a pilot-operated structure in the prior art, the direct-operated solenoid valve provided by the invention belongs to a complete direct-operated structure, and can avoid the problems of jamming, long action period and low frequency of the solenoid valve in the prior art when the solenoid valve is opened and closed.
Meanwhile, on the premise of ensuring the basic shape and size requirements of the moving iron, the plug and the valve body hole, the direct-acting electromagnetic valve provided by the invention effectively reduces the pressure difference stress area of the contact part of the moving iron and the plug by using the tubular interface, correspondingly, the pressure difference force to be overcome when the valve body is opened is smaller, the flow path of a medium in the valve body is short, and the operation requirements of large flow, high frequency, low energy consumption and smooth action can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a prior art solenoid valve in a closed state;
FIG. 2 is a schematic structural diagram of a prior art solenoid valve in transition from a closed state to an open state;
FIG. 3 is a schematic structural diagram of a prior art solenoid valve in an open state;
fig. 4 is a schematic structural diagram of a direct-acting solenoid valve according to an embodiment of the present invention.
The valve comprises a valve body 1, a second hole wall 11, a third hole wall 12, a plug 2, a moving iron 3, a coil 4, a through hole 5, a spring 6, a first cavity 7 and a second cavity 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings.
Referring to fig. 1 to 4, fig. 1 is a schematic structural view of a prior art solenoid valve in a closed state; FIG. 2 is a schematic structural diagram of a prior art solenoid valve in transition from a closed state to an open state; FIG. 3 is a schematic structural diagram of a prior art solenoid valve in an open state; fig. 4 is a schematic structural diagram of a direct-acting solenoid valve according to an embodiment of the present invention.
The invention provides a direct-acting electromagnetic valve, which comprises a valve body 1, and a plug 2, a moving iron 3, a coil 4 and a spring 6 which are arranged in the valve body 1; the valve body 1 is internally provided with a valve body hole, and the plug 2, the moving iron 3 and the coil 4 are coaxially distributed in the valve body hole along the axial direction of the valve body hole.
The valve body 1 is provided with an inlet and an outlet communicating with the valve body bore, for example, the aforementioned inlet and outlet may be respectively located on two diametrically opposite sides of the moving iron 3. When the moving iron 3 moves towards the plug 2 and extrudes the plug 2 under the driving of the coil 4 and the spring 6, the moving iron 3 and the plug 2 block the inlet of the valve body 1 and the outlet of the valve body 1 together, and at the moment, the valve body 1 is in a closed state. On the contrary, when the moving iron 3 is driven by the coil 4 and the spring 6 to be away from the plug 2 and separated from the plug 2, a gap is generated between the moving iron 3 and the plug 2, so that the inlet of the valve body 1 is communicated with the outlet of the valve body 1, and at the moment, the valve body 1 is in an open state.
In the direct-acting electromagnetic valve, the plug 2 is fixed on the valve body 1, and the moving iron 3 is slidably connected in the valve body hole of the valve body 1. One end of the moving iron 3 close to the plug 2 is a tubular interface, and the peripheral pipe wall of the tubular interface is provided with a through hole 5 communicated with the inlet of the valve body 1.
Illustratively, when the coil 4 is in the energized state, the coil 4 drives the moving iron 3 and the tubular interface thereof away from the plug 2, for example, the coil 4 attracts the moving iron 3 to separate the tubular interface from the plug 2. At this time, the medium entering the valve body hole from the inlet of the valve body 1 flows out along the through hole 5 of the tubular interface, the gap between the tubular interface and the plug 2, and the outlet of the valve body 1 in sequence, that is, the valve body 1 is in an open state. That is, the end of the moving iron 3 is in sealing fit with and separated from the plug 2 through the tubular interface.
Because the spring 6 accumulates spring potential energy in the process that the coil 4 drives the moving iron 3 to move away from the plug 2, for example, the coil 4 attracts the moving iron 3 to compress the spring 6, when the coil 4 is in a power-off state, the interaction force between the coil 4 and the moving iron 3 disappears, and the spring 6 drives the tubular interface of the moving iron 3 to approach and press the tubular interface to the plug 2 by using the accumulated elastic potential energy, so that the tubular interface is in sealed contact with the plug 2. At this time, the medium entering the valve body hole from the inlet of the valve body 1 can only enter the tubular interface from the through hole 5 of the tubular interface, but cannot flow out from between the contact surface of the tubular interface and the plug 2, that is, the valve body 1 is in a closed state.
Compared with the prior art such as the solenoid valve shown in fig. 1 to 3, the direct-acting solenoid valve provided by the invention effectively reduces the pressure difference stress area of the contact part of the moving iron 3 and the plug 2 by using the tubular interface on the premise of ensuring the basic shape and size requirements of the moving iron 3, the plug 2 and the valve body hole, and accordingly the pressure difference force to be overcome when the valve body 1 is opened is smaller, so that even if the flow of a medium is large, the valve body 1 is opened without a pilot structure, or the contact part between the moving iron 3 and the plug 2 of the medium with large flow can directly flow through, so that the high-frequency operation of the direct-acting solenoid valve is realized.
In summary, the direct-acting solenoid valve provided by the invention belongs to a complete direct-acting structure, and can avoid the problems of jamming, long action period and low frequency of the solenoid valve in the prior art when the solenoid valve is opened and closed.
The direct-acting solenoid valve provided by the present invention will be further described with reference to the accompanying drawings and embodiments.
The tubular interface of the moving iron 3 can be a round tubular interface. This structural feature is based on the conventional structural design of the moving iron 3 in the prior art, in other words, in the present electromagnet, the valve body hole of the valve body 1 is mostly a cylindrical hole, including but not limited to a single-section or multiple-section coaxial circular hole columns with different diameters, and correspondingly, the moving iron 3 inserted into the valve body hole is cylindrical. Therefore, for the moving iron 3, a cavity can be arranged in the moving iron, and a round tubular interface with equal wall thickness is formed at one end of the moving iron 3 close to the plug 2.
In addition, for the round tubular interface, the adjacent end parts of the plug 2 and the moving iron 3 can be ensured to form a contact surface in a larger range as far as possible, so that a larger-size space is formed, and the requirement of the medium on the flow area at the position is met.
Illustratively, the wall thickness of the round tubular interface can be set to any value of 0.5 mm-1.0 mm. The wall thickness within the numerical range can ensure the joint sealing effect of the moving iron 3 and the plug 2, and can also make full use of the size of the moving iron 3 to form a cavity with larger volume in the circular tubular interface, thereby being beneficial to the medium flowing from the inlet of the valve body 1 to the outlet of the valve body 1 in large flow.
Further, the plug 2 may be configured to be a frustum with a smoothly tapered top end, similar to a hill with a convex center. The top end of the plug 2 faces the tubular interface of the moving iron 3, so that the circular end face of the circular tubular interface of the moving iron 3 is sleeved in from the top end of the plug 2 and abuts against the peripheral outer wall of the plug 2.
When a medium flows in from the inlet of the valve body 1 and flows into the cavity of the circular tubular interface from the through hole 5 on the surface of the moving iron 3, once the moving iron 3 is separated from the plug 2, the medium in the cavity flows to the gap between the moving iron 3 and the plug 2 stably and rapidly under the flow guiding action of the top end of the plug 2, and further flows to the outlet of the valve body 1.
Generally, the top end of the plug 2 may coincide with the central axis of the plug 2, in other words, the top end of the plug 2 is located at the middle point of the cavity in the circular tubular interface in the radial direction, and under the guiding action of the plug 2, the medium in the cavity can uniformly flow along all angles in the radial direction of the plug 2.
In order to achieve better technical effects, in the embodiment provided by the invention, the spring 6 is arranged between the coil 4 and the moving iron 3, and the spring 6 is coaxially distributed with the coil 4 and the moving iron 3.
Illustratively, a mounting slot is arranged in one end part of the moving iron 3 close to the coil 4, and the mounting slot is used for inserting and positioning the spring 6. The installation slot hole can not only meet the positioning installation of the spring between the moving iron 3 and the coil 4, but also utilize the wall surface at the periphery of the installation slot hole to restrict the stretching direction of the spring, ensure that the moving iron 3 and the tubular interface thereof can be stably and accurately sealed and extruded on the plug 2, and ensure the using effect of the direct-acting electromagnetic valve.
The mounting slot may be specifically configured as a cylindrical recess, thereby facilitating selection of a spring 6 having a radial dimension matching the cylindrical recess.
In order to improve the circulation performance of a medium at the contact part of the moving iron 3 and the plug 2, on the basis of the embodiment, in the direct-acting electromagnetic valve provided by the invention, the moving iron 3 sequentially comprises a coil connecting end and a plug connecting end along the axial direction; suitably, the valve body hole includes the first pore wall with the sealed laminating of coil link, encloses second pore wall 11 of locating 5 peripheries of through-hole and encloses third pore wall 12 of locating end cap link periphery.
In the structure, the second hole wall 11 of the valve body hole and the outer wall of the moving iron 3 form a first cavity 7; a third hole wall 12 of the valve body hole and the outer wall of the connecting end of the plug form a second cavity 8; the first cavity 7 and the second cavity 8 are sealed and isolated; the inlet communicates with the through hole 5 through the first cavity 7.
Therefore, no matter the valve body 1 is in a closed state or an open state, the medium can flow from the inlet of the valve body 1 into the first cavity 7 and enter the interior of the tubular interface of the moving iron 3 through the through hole 5 on the surface of the moving iron 3. At this time, if the valve body 1 is in the closed state, the medium does not flow directly from the first cavity 7 to the second cavity 8, nor flows out from the inside of the tubular port to the second cavity 8. If the valve body 1 is in the open state, the medium in the tubular interface can flow out of the tubular interface, so as to enter the second cavity 8, and finally flow out of the outlet of the valve body 1 through the second cavity 8.
In order to increase the degree of communication between the first cavity 7 and the tubular port and to achieve a large flow rate of the medium, a plurality of through holes 5 may be provided around the tubular port, so that all the through holes 5 communicate with the first cavity 7.
The direct-acting solenoid valve provided by the present invention is described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. A direct-acting electromagnetic valve comprises a valve body (1), a plug (2) which is arranged in a valve body hole of the valve body (1) and is coaxially distributed, a moving iron (3), a coil (4) and a spring (6); the valve body (1) is provided with an inlet and an outlet which are respectively communicated with the valve body hole; the valve is characterized in that the plug (2) is fixed on the valve body (1); one end of the moving iron (3) close to the plug (2) is a tubular interface; a through hole (5) communicated with the inlet is formed in the periphery of the tubular interface;
the spring (6) drives the tubular interface to be hermetically extruded on the plug (2) to realize the separation of the inlet and the outlet when the coil (4) is powered off, and the coil (4) drives the tubular interface to be separated from the plug (2) to realize the communication of the inlet and the outlet when the coil is powered on;
the plug (2) is in a frustum shape with a smooth and gradually reduced top end; the top end of the plug (2) faces the tubular interface;
the moving iron (3) is sequentially provided with a coil connecting end and a plug connecting end along the axial direction; the valve body hole comprises a first hole wall which is in sealing fit with the coil connecting end, a second hole wall (11) which surrounds the periphery of the through hole (5) and a third hole wall (12) which surrounds the periphery of the plug connecting end;
the second hole wall (11) and the outer wall of the moving iron (3) form a first cavity (7); the third hole wall (12) and the outer wall of the plug connecting end form a second cavity (8); the first cavity (7) is hermetically separated from the second cavity (8); the inlet is communicated with the through hole (5) through the first cavity (7);
the inlet is connected to the through-hole (5) via the first cavity (7).
2. Direct-acting solenoid valve according to claim 1, characterized in that said tubular interface is in particular a round tubular interface.
3. A direct-acting solenoid valve as claimed in claim 2 wherein the wall thickness of the circular tubular port is any one of 0.5mm to 1 mm.
4. Direct-acting solenoid valve according to claim 1, characterized in that the top end of the bulkhead (2) coincides with the central axis of the bulkhead (2).
5. Direct-acting solenoid valve according to claim 1, characterized in that said spring (6) is arranged between said coil (4) and said moving iron (3); the movable iron (3) is internally provided with an installation slot hole for the spring (6) to be coaxially inserted in the movable iron (3).
6. Direct-acting solenoid valve according to claim 1, characterized in that said first cavity (7) communicates with a plurality of said through holes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500181.4A CN113090771B (en) | 2021-05-08 | 2021-05-08 | Direct-acting electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110500181.4A CN113090771B (en) | 2021-05-08 | 2021-05-08 | Direct-acting electromagnetic valve |
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| Publication Number | Publication Date |
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| CN113090771A CN113090771A (en) | 2021-07-09 |
| CN113090771B true CN113090771B (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110500181.4A Active CN113090771B (en) | 2021-05-08 | 2021-05-08 | Direct-acting electromagnetic valve |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240651Y (en) * | 1995-12-08 | 1996-11-20 | 张锡水 | Ceramic sealing valve |
| CN109723826A (en) * | 2017-10-27 | 2019-05-07 | 浙江三花制冷集团有限公司 | A kind of motor-driven valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148677A (en) * | 1995-10-24 | 1997-04-30 | 陈宝镇 | Balance type plunger stop valve preventing internal and outernal leakage |
| CN205479639U (en) * | 2016-04-11 | 2016-08-17 | 东莞市科威纳自动化工业有限公司 | Directly move piston solenoid valve |
| CN207599103U (en) * | 2017-11-28 | 2018-07-10 | 厦门立霖卫浴有限公司 | A kind of direct-acting electromagnetic valve |
| CN110259954B (en) * | 2019-06-14 | 2020-12-01 | 西安航天动力研究所 | Integrated direct-acting electromagnetic valve |
| CN210178938U (en) * | 2019-07-09 | 2020-03-24 | 依格流体技术（嘉兴）有限公司 | Improved large-diameter direct-acting electromagnetic valve |
-
2021
- 2021-05-08 CN CN202110500181.4A patent/CN113090771B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2240651Y (en) * | 1995-12-08 | 1996-11-20 | 张锡水 | Ceramic sealing valve |
| CN109723826A (en) * | 2017-10-27 | 2019-05-07 | 浙江三花制冷集团有限公司 | A kind of motor-driven valve |
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| CN113090771A (en) | 2021-07-09 |
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Denomination of invention: A direct acting solenoid valve Effective date of registration: 20231122 Granted publication date: 20221223 Pledgee: Quzhou Longyou Green Exclusive Branch of China Merchants Bank Co.,Ltd. Pledgor: Weishi Xi (Zhejiang) Fluid Technology Co.,Ltd. Registration number: Y2023980066998 |