CN206268570U - A kind of magnetic valve is with two-way positioning formula permanent-magnet operating mechanism - Google Patents
A kind of magnetic valve is with two-way positioning formula permanent-magnet operating mechanism Download PDFInfo
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 71
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000003068 static effect Effects 0.000 claims abstract description 19
- 238000002955 isolation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 22
- 230000005298 paramagnetic effect Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及一种电磁阀用操作机构，特别是涉及一种节能型电磁阀用双向定位式永磁操作机构。The utility model relates to an operating mechanism for a solenoid valve, in particular to a bidirectional positioning permanent magnet operating mechanism for an energy-saving solenoid valve.
背景技术Background technique
传统操作机构主要有电磁操作机构和弹簧操作机构，电磁操作机构是利用电磁原理控制跳闸或合闸线圈进行开闭或其它操作，此种结构一般需要较大功率电流并配置带消弧线圈触点的直流接触器来控制分合闸；弹簧操作机构主要以弹簧作为储能元件，用卡销控制弹簧实现开关或其他操作，这种机构的结构相对比较复杂、对零部件加工精度要求较高，会出现失误或拒绝合闸现象。The traditional operating mechanism mainly includes electromagnetic operating mechanism and spring operating mechanism. The electromagnetic operating mechanism uses the electromagnetic principle to control the tripping or closing coil for opening and closing or other operations. This structure generally requires a large power current and is equipped with a contact with an arc suppression coil. The DC contactor is used to control the opening and closing; the spring operating mechanism mainly uses the spring as the energy storage element, and uses the bayonet to control the spring to realize the switch or other operations. The structure of this mechanism is relatively complicated, and the processing accuracy of the parts is high. Mistakes or refusal to close will occur.
永磁操作机构是在电磁操作机构基础上引入永磁铁，因此也称为永磁操作机构。永磁操作机构具有节能、无振动、无噪声、免维护的特点，尤其是节能效果显著。目前永磁操作机构在中压开关领域已得到越来越广泛的应用，但还未应用于电磁阀领域。The permanent magnet operating mechanism introduces permanent magnets on the basis of the electromagnetic operating mechanism, so it is also called the permanent magnet operating mechanism. The permanent magnet operating mechanism has the characteristics of energy saving, no vibration, no noise, and maintenance-free, especially the energy-saving effect is remarkable. At present, the permanent magnet operating mechanism has been more and more widely used in the field of medium voltage switches, but it has not been applied in the field of solenoid valves.
发明内容Contents of the invention
本实用新型的目的在于提供一种节能效果好、使用可靠的电磁阀用双向定位式永磁操作机构。The purpose of the utility model is to provide a two-way positioning permanent magnet operating mechanism for electromagnetic valves with good energy saving effect and reliable use.
本实用新型提供的电磁阀用双向定位式永磁操作机构包括磁轭组件、导套组件、线圈、动铁芯、推杆、静铁芯和环状永磁体，导套组件包括极靴环、隔磁环、导磁环和阀接口块，线圈和导套组件安装于磁轭组件中，线圈位于导套组件的外侧，包括左线圈和右线圈，动铁芯安装于导套组件中，推杆连接于动铁芯上并穿过阀接口块，环状永磁体通过衬套安装于导套组件上，静铁芯套装于环状永磁体上，衬套、静铁芯和环状永磁体位于左线圈和右线圈之间。The two-way positioning permanent magnet operating mechanism for electromagnetic valve provided by the utility model includes a yoke assembly, a guide sleeve assembly, a coil, a moving iron core, a push rod, a static iron core and an annular permanent magnet. The guide sleeve assembly includes a pole shoe ring, The magnetic isolation ring, the magnetic conduction ring and the valve interface block, the coil and the guide sleeve assembly are installed in the yoke assembly, the coil is located outside the guide sleeve assembly, including the left coil and the right coil, the moving iron core is installed in the guide sleeve assembly, and the push The rod is connected to the moving iron core and passes through the valve interface block. The ring-shaped permanent magnet is installed on the guide sleeve assembly through the bushing. The static iron core is set on the ring-shaped permanent magnet. The bushing, the static iron core and the ring-shaped permanent magnet Located between the left coil and the right coil.
上述环状永磁体由6块拼接而成，每块永磁体的圆心角均为60度。The above ring-shaped permanent magnet is formed by splicing 6 pieces, and the central angle of each piece of permanent magnet is 60 degrees.
本实用新型使用时动铁芯在导套组件的孔中左右运动，动铁芯的行程起点为右侧极限位置，向左为正方向。当动铁芯位于行程的右极限位置时，环状永磁体、静铁芯、导套组件、动铁芯、磁轭组件、衬套组成左右双磁回路，将动铁芯保持在行程右极限位置，若此时左线圈通电，在线圈和永磁体合成磁场的作用下，动铁芯向左运动到行程的左极限位置，若左线圈断电，永磁体、静铁芯、导套组件、动铁芯、磁轭组件和衬套将构成左右双磁回路，将动铁芯保持在左极限位置，若此时右线圈通电，动铁芯将会向右运动至右极限位置，断电后动铁芯通过永磁体磁势保持在该位置。When the utility model is in use, the moving iron core moves left and right in the hole of the guide sleeve assembly, the starting point of the stroke of the moving iron core is the right limit position, and the left is the positive direction. When the moving iron core is at the right limit position of the stroke, the ring-shaped permanent magnet, static iron core, guide sleeve assembly, moving iron core, yoke assembly and bushing form a left and right double magnetic circuit to keep the moving iron core at the right limit of the stroke. If the left coil is energized at this time, under the action of the combined magnetic field of the coil and the permanent magnet, the moving iron core moves to the left to the left limit position of the stroke. If the left coil is powered off, the permanent magnet, static iron core, guide sleeve assembly, The moving iron core, the yoke assembly and the bushing will form a left and right double magnetic circuit to keep the moving iron core at the left limit position. If the right coil is energized at this time, the moving iron core will move to the right to the right limit position. The moving iron core is held in this position by the magnetic potential of the permanent magnet.
本实用新型工作时动铁芯通过永磁体的磁动势即可保持在极限位置，即动铁芯处于左右极限位置时左右线圈不需通电，因此本实用新型具有良好的节能效果。另外，本实用新型较现有的双线圈电磁铁零部件改动较少，因此制造难度和制造成本较低。When the utility model works, the moving iron core can be kept at the limit position by the magnetomotive force of the permanent magnet, that is, the left and right coils do not need to be energized when the moving iron core is in the left and right limit positions, so the utility model has a good energy-saving effect. In addition, compared with the existing double-coil electromagnet parts, the utility model has less modification, so the manufacturing difficulty and manufacturing cost are lower.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图2为导套组件的剖视图。Figure 2 is a cross-sectional view of the guide sleeve assembly.
图3为磁轭组件的剖视图。Fig. 3 is a cross-sectional view of the yoke assembly.
图4为环状永磁体每块的结构示意图。Fig. 4 is a structural schematic diagram of each block of the annular permanent magnet.
图中标记：1-磁轭组件、11-左端盖、12-导磁圆筒、13-右端盖、2-动铁芯、3-左线圈、4-衬套、5-环状永磁体、6-静铁芯、7-右线圈、8-导套组件、81-端盖接口块、82-极靴环、83-隔磁垫片、84-隔磁环、85-导磁环、86-隔磁环、87-隔磁垫片、88-极靴环、89-阀接口块、9-推杆。Marks in the figure: 1-yoke assembly, 11-left end cover, 12-magnetic cylinder, 13-right end cover, 2-moving iron core, 3-left coil, 4-bush, 5-ring permanent magnet, 6-Static iron core, 7-Right coil, 8-Guide sleeve assembly, 81-End cover interface block, 82-Pole shoe ring, 83-Magnetic isolation spacer, 84-Magnetic isolation ring, 85-Magnetic conduction ring, 86 -magnetic isolation ring, 87-magnetic isolation gasket, 88-pole shoe ring, 89-valve interface block, 9-push rod.
具体实施方式detailed description
实施例Example
如图1～图3所示，本实用新型包括磁轭组件1、动铁芯2、左线圈3、衬套4、环状永磁体5、静铁芯6、右线圈7、导套组件8和推杆9，左线圈3、右线圈7和导套组件8安装于磁轭组件1中，其中左线圈3和右线圈7位于导套组件8的外侧，动铁芯2可左右移动地安装于导套组件8中。衬套4套于导套组件8上，环状永磁体5套装于衬套4上，静铁芯6套装于环状永磁体5上，衬套4、静铁芯6和环状永磁体5位于左线圈3和右线圈7之间。推杆9连接于动铁芯2上并穿过导套组件8的阀接口块89。As shown in Figures 1 to 3, the utility model includes a yoke assembly 1, a moving iron core 2, a left coil 3, a bushing 4, an annular permanent magnet 5, a static iron core 6, a right coil 7, and a guide sleeve assembly 8 And the push rod 9, the left coil 3, the right coil 7 and the guide sleeve assembly 8 are installed in the yoke assembly 1, wherein the left coil 3 and the right coil 7 are located outside the guide sleeve assembly 8, and the moving iron core 2 is installed so that it can move left and right In the guide sleeve assembly 8. The bushing 4 is set on the guide sleeve assembly 8, the annular permanent magnet 5 is set on the bushing 4, the static iron core 6 is set on the annular permanent magnet 5, the bushing 4, the static iron core 6 and the annular permanent magnet 5 Located between the left coil 3 and the right coil 7. The push rod 9 is connected to the moving iron core 2 and passes through the valve interface block 89 of the guide sleeve assembly 8 .
所述磁轭组件1采用导磁材料20号钢制成，其结构如图3所示，由左端盖11、导磁圆筒12和右端盖13组成，左端盖11、右端盖13的通孔用于安装导套组件8的端盖接口块81和阀接口块89。左端盖11和导磁圆筒12的左半部分构成左侧磁路的组成要素，右端盖13和导磁圆筒12的右半部分构成右侧磁路的组成要素。The yoke assembly 1 is made of magnetic material No. 20 steel, and its structure is shown in Figure 3. It consists of a left end cover 11, a magnetic conduction cylinder 12 and a right end cover 13. The end cap interface block 81 and the valve interface block 89 are used for installing the guide sleeve assembly 8 . The left end cover 11 and the left half of the magnetic conduction cylinder 12 form the constituent elements of the left magnetic circuit, and the right end cover 13 and the right half of the magnetic conduction cylinder 12 constitute the constituent elements of the right magnetic circuit.
所述导套组件8的结构如图2所示，由端盖接口块81，极靴环82、88、隔磁垫片83、87、隔磁环84、86，导磁环85和阀接口块89组成。其中端盖接口块81、极靴环82、88、导磁环85，阀接口块89由导磁材料20号制成，是构成左右双磁路的组成部分。极靴环82、88用于改变左右磁路的磁导分布，以调节动铁芯2在左右极限位置的电磁力。隔磁环84、86由非导磁材料黄铜组成，用于隔离磁路，以使磁力线按照需要的路径形成磁回路。导套组件8的端盖接口块81的右端面设置的隔磁垫片83可调节动铁芯2在左极限位置的左右气隙比，从而调节右线圈7通电时的右驱动力。阀接口块89左端面设置的隔磁垫片87可调节动铁芯2在右极限位置的左右气隙比，从而调节左线圈3通电时的左驱动力。The structure of the guide sleeve assembly 8 is shown in Figure 2, consisting of an end cover interface block 81, pole shoe rings 82, 88, magnetic isolation gaskets 83, 87, magnetic isolation rings 84, 86, magnetic conductive ring 85 and valve interface Block 89 composition. Wherein the end cover interface block 81, the pole shoe rings 82, 88, the magnetic conduction ring 85, and the valve interface block 89 are made of No. 20 magnetic conduction material, which are the constituent parts of the left and right double magnetic circuits. The pole shoe rings 82 and 88 are used to change the distribution of the magnetic permeability of the left and right magnetic circuits, so as to adjust the electromagnetic force of the moving iron core 2 at the left and right extreme positions. The magnetic isolation rings 84 and 86 are made of brass, a non-magnetic material, and are used to isolate the magnetic circuit, so that the magnetic force lines form a magnetic circuit according to the required path. The magnetic isolation spacer 83 provided on the right end surface of the end cover interface block 81 of the guide sleeve assembly 8 can adjust the left and right air gap ratio of the moving iron core 2 at the left extreme position, thereby adjusting the right driving force when the right coil 7 is energized. The magnetic isolation spacer 87 provided on the left end surface of the valve interface block 89 can adjust the left and right air gap ratio of the moving iron core 2 at the right extreme position, thereby adjusting the left driving force when the left coil 3 is energized.
所述环状永磁体5由等分的6块拼接而成，每块永磁体的圆心角均为60度(如图4所示)，这样可减小径向磁化难度，同时也便于使用时根据实际情况，选用不同数量的永磁体块进行拼接，以调整永磁体磁动势的工作面积。The annular permanent magnet 5 is spliced by 6 equal parts, and the central angle of each permanent magnet is 60 degrees (as shown in Figure 4), which can reduce the difficulty of radial magnetization and is also convenient for use. According to the actual situation, different numbers of permanent magnet blocks are selected for splicing to adjust the working area of the permanent magnet magnetomotive force.
本实用新型的工作过程如下：The working process of the present utility model is as follows:
当动铁芯2保持定位在右极限位置，且左右线圈均不通电时，仅由环状永磁体5产生磁动势。环状永磁体5发出的磁力线在经过静铁芯6及静铁芯6与环状永磁体5的径向气隙后，分成左右双磁路：右磁路依次经过磁轭组件1的导磁圆筒12的右半部分、磁轭组件1的右端盖13及它们之间的径向气隙后，再经过导套组件8的阀接口块89、动铁芯2右侧磁极主工作气隙、动铁芯2右侧部分、导套组件8的导磁环85的右侧部分；左磁路依次经过磁轭组件1的导磁圆筒12的左半部分、磁轭组件1的左端盖11及它们之间的径向气隙后，再经过导套组件8的端盖接口块81、动铁芯2左侧磁极主工作气隙、动铁芯2左侧部分、导套组件8的导磁环85的左侧部分。左右磁路到达导套组件8的导磁环部分后，汇合至衬套4及径向气隙后，返回至环状永磁体5的另一径向磁极。左右磁路中还有经过左右线圈的漏磁回路。由于动铁芯2在右极限位置时，右边工作气隙长度远小于左边工作气隙，因此通过动铁芯2右侧的磁力线密度大于左侧，从而使动铁芯2受到向右的磁吸力。When the moving iron core 2 is kept positioned at the right extreme position, and the left and right coils are not energized, only the annular permanent magnet 5 generates the magnetomotive force. After passing through the static iron core 6 and the radial air gap between the static iron core 6 and the annular permanent magnet 5, the magnetic force lines emitted by the annular permanent magnet 5 are divided into left and right double magnetic circuits: the right magnetic circuit passes through the magnetic conduction of the yoke assembly 1 in turn. After the right half of the cylinder 12, the right end cover 13 of the yoke assembly 1 and the radial air gap between them, it passes through the valve interface block 89 of the guide sleeve assembly 8, the main working air gap of the magnetic pole on the right side of the moving iron core 2 , the right part of the moving iron core 2, the right part of the magnetic conducting ring 85 of the guide sleeve assembly 8; the left magnetic circuit passes through the left half of the magnetic conducting cylinder 12 of the yoke assembly 1 and the left end cover of the yoke assembly 11 and the radial air gap between them, then through the end cover interface block 81 of the guide sleeve assembly 8, the main working air gap of the magnetic pole on the left side of the moving iron core 2, the left part of the moving iron core 2, and the part of the guide sleeve assembly 8 The left part of the magnetic conduction ring 85. After the left and right magnetic circuits reach the magnetically permeable ring part of the guide sleeve assembly 8, they converge to the bushing 4 and the radial air gap, and then return to the other radial magnetic pole of the annular permanent magnet 5. There are also magnetic leakage circuits passing through the left and right coils in the left and right magnetic circuits. Since the moving iron core 2 is at the right extreme position, the length of the working air gap on the right is much smaller than the working air gap on the left, so the density of the magnetic field lines passing through the right side of the moving iron core 2 is greater than that on the left side, so that the moving iron core 2 is subjected to a rightward magnetic attraction force .
当动铁芯2位于右极限位置，左线圈3通电而右线圈7不通电时，环状永磁体5和左线圈3产生磁动势的合成作用，环状永磁体5发出的磁力线在经过静铁芯6及与环状永磁体5的径向气隙后，分成左右双磁路；与上述类似，左右磁路分别经过位于环状永磁体5左右侧的各导磁零部件及气隙后，汇合至衬套4及径向气隙，并返回至环状永磁体5的另一径向磁极。左线圈3通电后产生与永磁体磁动势作用方向相同的顺磁磁势，该磁动势沿着永磁体磁势形成的左磁路方向经过磁轭组件1的导磁圆筒12的左半部分、磁轭组件1的左端盖11及它们之间的径向气隙后，再经过导套组件8的端盖接口块81、动铁芯2左侧磁极主工作气隙、动铁芯2左侧部分、导套组件1的导磁环85的左侧部分之后，与永磁体磁动势形成的右磁路汇合。此时，左侧工作气隙远大于右侧工作气隙，但由于左线圈3的顺磁磁势的作用，动铁芯2左侧的磁力线密度大于右侧，使得动铁芯2受到向左的驱动力而向左运动至左极限位置。When the moving iron core 2 is located at the right limit position, the left coil 3 is energized and the right coil 7 is not energized, the ring-shaped permanent magnet 5 and the left coil 3 produce a synthetic effect of magnetomotive force, and the magnetic field lines emitted by the ring-shaped permanent magnet 5 pass through the static After the iron core 6 and the radial air gap with the ring-shaped permanent magnet 5, it is divided into left and right double magnetic circuits; similar to the above, the left and right magnetic circuits pass through the magnetic components and air gaps on the left and right sides of the ring-shaped permanent magnet 5 respectively. , converge to the bushing 4 and the radial air gap, and return to the other radial magnetic pole of the annular permanent magnet 5 . After the left coil 3 is energized, a paramagnetic magnetomotive force in the same direction as the magnetomotive force of the permanent magnet is generated. After the half part, the left end cover 11 of the yoke assembly 1 and the radial air gap between them, it passes through the end cover interface block 81 of the guide sleeve assembly 8, the main working air gap of the magnetic pole on the left side of the moving iron core 2, and the moving iron core 2 After the left part, the left part of the magnetically permeable ring 85 of the guide sleeve assembly 1, it merges with the right magnetic circuit formed by the magnetomotive force of the permanent magnet. At this time, the working air gap on the left side is much larger than the working air gap on the right side, but due to the effect of the paramagnetic magnetic potential of the left coil 3, the magnetic flux density on the left side of the moving iron core 2 is greater than that on the right side, so that the moving iron core 2 is subjected to a leftward The driving force moves to the left to the left limit position.
当动铁芯2位于左极限位置，且左右线圈均不通电时，仅有环状永磁体5提供磁动势。环状永磁体5发出的磁力线在经过静铁芯6及与环状永磁体5的径向气隙后，形成与上述相似的左右双磁路。此时，左边工作气隙远小于右边工作气隙，通过动铁芯2左侧的磁力线密度大于右侧，从而使动铁芯2受到向左的磁吸力。When the moving iron core 2 is at the left limit position and the left and right coils are not energized, only the annular permanent magnet 5 provides the magnetomotive force. The magnetic lines of force emitted by the ring-shaped permanent magnet 5 form left and right double magnetic circuits similar to the above after passing through the static iron core 6 and the radial air gap with the ring-shaped permanent magnet 5 . At this time, the working air gap on the left is much smaller than the working air gap on the right, and the density of the magnetic field lines passing through the left side of the moving iron core 2 is greater than that on the right side, so that the moving iron core 2 is subjected to a leftward magnetic attraction.
当动铁芯2位于左极限位置，右线圈通电而左线圈不通电时，环状永磁体5和右线圈7产生磁动势的合成作用。永磁体磁动势发出的磁力线在经过静铁芯6及环状永磁体5的径向气隙后，分成左右双磁路；与上述类似，左右磁路分别依次经过环状永磁体5左右侧的各导磁零部件及气隙后，汇合至衬套4及径向气隙，并返回至环状永磁体5的另一径向磁极。右线圈7通电后产生与环状永磁体5的磁动势作用方向相同的顺磁磁势，该磁动势沿着永磁体磁势形成的右磁路方向经过依次经过磁轭组件1的导磁圆筒12的右半部分、磁轭组件1的右端盖13及它们之间的径向气隙后，再经过导套组件8的阀接口块89、动铁芯2右侧磁极主工作气隙、动铁芯2右侧部分、导套组件8的导磁环85的右侧部分之后，与永磁体磁动势形成的左磁路汇合。此时，右侧工作气隙远大于左侧工作气隙，但由于右线圈7的顺磁磁势的作用，动铁芯2右侧的磁力线密度大于左侧，使得动铁芯2受到向右的驱动力而向右运动至右极限位置。When the moving iron core 2 is at the left extreme position, the right coil is energized and the left coil is not energized, the ring-shaped permanent magnet 5 and the right coil 7 produce a synthetic effect of magnetomotive force. The magnetic field lines emitted by the magnetomotive force of the permanent magnet are divided into left and right double magnetic circuits after passing through the radial air gap of the static iron core 6 and the annular permanent magnet 5; similar to the above, the left and right magnetic circuits pass through the left and right sides of the annular permanent magnet 5 in turn After the magnetic parts and the air gap of each magnetic conduction part and the air gap, they converge to the bushing 4 and the radial air gap, and return to the other radial magnetic pole of the annular permanent magnet 5. After the right coil 7 is energized, it produces a paramagnetic magnetomotive force in the same direction as the magnetomotive force of the annular permanent magnet 5. After the right half of the magnetic cylinder 12, the right end cover 13 of the yoke assembly 1 and the radial air gap between them, it passes through the valve interface block 89 of the guide sleeve assembly 8 and the main working gas of the magnetic pole on the right side of the moving iron core 2. After the gap, the right part of the moving iron core 2, and the right part of the magnetic permeable ring 85 of the guide sleeve assembly 8, it merges with the left magnetic circuit formed by the magnetomotive force of the permanent magnet. At this time, the working air gap on the right side is much larger than the working air gap on the left side, but due to the effect of the paramagnetic magnetic potential of the right coil 7, the magnetic field line density on the right side of the moving iron core 2 is greater than that on the left side, so that the moving iron core 2 is subjected to a rightward The driving force moves to the right to the right limit position.
以上所述仅是本实用新型优选的实施方式，但本实用新型的保护范围并不局限于此，任何基于本实用新型所提供的技术方案和发明构思进行的改造和替换都应涵盖在本实用新型的保护范围内。The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any transformation and replacement based on the technical solutions and inventive concepts provided by the utility model should be covered by the utility model. new type of protection.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343774A (en) * | 2018-02-12 | 2018-07-31 | 嘉兴市丰收云科技有限公司 | Self-sustaining electromagnetic valve and intelligent fertilization system |
| CN108533820A (en) * | 2018-03-16 | 2018-09-14 | 北京控制工程研究所 | A kind of magnetic circuit symmetrical bipolar is without friction self-locking valve |
| CN114506196A (en) * | 2022-02-25 | 2022-05-17 | 智己汽车科技有限公司 | Spacing real-time adjustable vehicle suspension and corresponding vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343774A (en) * | 2018-02-12 | 2018-07-31 | 嘉兴市丰收云科技有限公司 | Self-sustaining electromagnetic valve and intelligent fertilization system |
| CN108533820A (en) * | 2018-03-16 | 2018-09-14 | 北京控制工程研究所 | A kind of magnetic circuit symmetrical bipolar is without friction self-locking valve |
| CN114506196A (en) * | 2022-02-25 | 2022-05-17 | 智己汽车科技有限公司 | Spacing real-time adjustable vehicle suspension and corresponding vehicle |
| CN114506196B (en) * | 2022-02-25 | 2024-05-14 | 智己汽车科技有限公司 | Spacing real-time adjustable vehicle suspension and corresponding vehicle |
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