CN1959050A - Magnetic force attractor of reliable suction, and convenient desorption - Google Patents
Magnetic force attractor of reliable suction, and convenient desorption Download PDFInfo
- Publication number
- CN1959050A CN1959050A CN 200610096216 CN200610096216A CN1959050A CN 1959050 A CN1959050 A CN 1959050A CN 200610096216 CN200610096216 CN 200610096216 CN 200610096216 A CN200610096216 A CN 200610096216A CN 1959050 A CN1959050 A CN 1959050A
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- magnetic
- permanent magnet
- sucker
- attraction
- inhale
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- 239000002184 metal Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 210000000003 hoof Anatomy 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 7
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
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- 230000005389 magnetism Effects 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
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- 229910052742 iron Inorganic materials 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- 238000013459 approach Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The present invention discloses a kind of magnetic attraction device whose attraction is reliable and attraction elimination is convenient. It is characterized by that it includes a permanent magnet, between the permanent magnet and attracted magnetic conductive metal an intermediate body which is formed from at least two magnetic relay batons and a magnetic short-circuit bridge is mounted, and said intermediate body can be moved relatively to the permanent magnet.
Description
Technical field
The present invention relates to a kind of activity fastening devices, especially a kind ofly realize relative positioning based on two relative firm attractions of object of can making of magnetic force attraction principle together, can make the two separate the magnetic attraction device again easily, as door-inhale etc., specifically a kind of attraction is reliable and take off and inhale magnetic attraction device easily.
Background technology
As everyone knows, the Door magnet that common people use always is to utilize magnet that the magnetic force of magnetic conductors such as iron and steel is held door, but the firm more effort more of opening also of inhaling.This is because the magnetic force that magnet produces is the strongest on magnetic pole hair line direction.We notice magnetic force that magnet produces on the vertical direction of magnetic pole hair line direction, promptly during normal direction, have not just almost had magnetic force, so people's horizontal method that pushes away commonly used is separated permanent magnet.In addition, the magnetic line of force is always walked along the path of magnetic resistance minimum, in case form the loop, just produces maximum magnetic force in the loop, and just very faint to attraction on every side.For this reason, people have designed various activity fastening devicess based on the magnetic force principle, make on the one hand two objects separating originally easily adhesive with separate, also can need be fixed on the metal surface with facing fixing surely object movement on the other hand by magnet.But people find in actual use, exist attraction big more, separate difficult more problem, especially when as the area of the metal bottom surface of magnetic conduction iron when very big method by horizontal passing to make magnet and metal bottom surface separate difficulty very big, and in the process of passing, be easy to scratch the coating of metal surface.Therefore design a kind of suction based on the magnetic force circuit theory and put freely, the light magnetic attraction device that put in the jail of suction is the target that people pursue all the time, also is the problem that many devices that utilize the magnetic force principle to position press for solution.
Summary of the invention
The objective of the invention is the big separation difficulty of suction that exists at present magnetic attraction fastening devices, the problem of insufficient strength is closed in the suction brief summary, design a kind of attraction reliably and take off and inhale magnetic attraction device easily.
Technical scheme of the present invention is:
A kind of attraction is reliable and take off and inhale magnetic attraction device easily, comprise permanent magnet, it is characterized in that permanent magnet and by inhale be equipped with between the magnetic conductive metal at least forms by two magnetic relay batons and magnetic short-circuit bridges, can do and the intermediate of permanent magnet relative motion.
The fixing body of permanent magnet and mounting permanent magnet can be formed a base during concrete enforcement, simultaneously intermediate is made the sucker shape, base mainly links to each other by magnetic force with sucker, mounting permanent magnet in base, at least two relative with two magnetic poles of permanent magnet respectively soft magnetism relay batons and at least one magnetic field short-circuit bridges are installed in sucker, one end of described magnetic relay baton and permanent magnet one extremely relative, the other end is relative with the metal object that needs to inhale mutually, permanent magnet can be separately or is done with respect to the rotation of sucker or move with base, permanent magnet rotates or moves with respect to sucker with base and is meant: (1) base is motionless, sucker unitary rotation or mobile; (2) sucker is motionless, base unitary rotation or mobile.Permanent magnet is done separately with respect to the rotation of sucker or move to be meant: base and sucker are all motionless, do with respect to the rotation of sucker or move and be installed in permanent magnet in the base.
Described permanent magnet or be U type permanent magnet, or be shape of a hoof permanent magnet, or the analog-U shaped permanent magnet of combined type for linking to each other and form by metal magnetic conducting body and permanent magnet.
The center line of described magnetic field short-circuit bridges and the line of centres of two magnetic relay batons intersect and the two angle greater than zero degree.
Described base and sucker can be equipped with a guide pin bushing or guide shaft, and guide shaft or the guide pin bushing that matches is installed in sucker for making structure in relative rotation in described base at this moment, and base or sucker are connected with the manual or motor driving device that drives its rotation.
The center line of described magnetic field short-circuit bridges and the line of centres of two magnetic relay batons or be located along the same line, or be parallel to each other, or both not parallel also non-intersect, promptly the center line of magnetic field short-circuit bridges is positioned at a side of the line of centres of two magnetic relay batons.
At this moment, described base and sucker are the structure of doing relative translation or slip, can be provided with a gathering sill on described base or sucker, and the driving lever that will drive permanent magnet translation or slippage places this gathering sill.
The present invention has the following advantages:
1, the present invention utilizes and rotates and magnetic torque road and bridge have realized that utilizing minimum strength to reach makes the purpose that success separates between the attractor, the direction of rotatory force is perpendicular to magnetic line of force direction, utilize very little moment can realize relatively rotating between base and the sucker, form the loop between back magnetic force short-circuit bridges and the U type permanent magnet and make it drop to negligible degree thereby utilize to rotate the active force that is positioned at the soft magnetism relay baton outside the loop, and then the purpose that reaches that sucker loses that magnetic force is easy to and separated by the suction metallic object.
2, applied range, utilize principle of the present invention and basic structure to design to be suitable for the concrete suction device of various applicable cases, as can be used for making the door-inhale that uses in the elderly and children, can be used on the firm banking of all kinds of electronic tags, can be used for all kinds of refrigerator doors transformation, can be used for the temporary fixed of automobile-used protective articles, and other need use sucker or inhale occasion that piece is fixed.
Description of drawings
Fig. 1 is one of basic structure schematic diagram of the present invention.
Fig. 2 is the structural representation of the base in the basic structure shown in Figure 1.
Fig. 3 is the upward view of Fig. 2.
Fig. 4 is the structural representation of the sucker in the basic structure shown in Figure 1.
The A-A sectional view of Fig. 5 Fig. 4.
Fig. 6 is the plan structure schematic diagram of Fig. 4.
Fig. 7 is that basic structure shown in Figure 1 is in the structural representation when taking off the suction state.
Fig. 8 is two of a basic structure schematic diagram of the present invention.
Fig. 9 is the structural representation of basic concrete application examples of the present invention.
Figure 10 is the structural representation of the 3rd concrete application examples of the present invention.
Figure 11 is that the A of Figure 10 is to view.
The specific embodiment
The present invention is further illustrated for following structure drawings and Examples.
Embodiment one.
Shown in Fig. 1-6.
A kind of attraction is reliable and take off and inhale magnetic attraction device easily, is made up of the base 1 that U type permanent magnet 4 is installed, sucker 2 and rotating shaft mechanism 3 as intermediate that soft magnetism relay baton 6 and magnetic field short-circuit bridges 7 be installed, as shown in Figure 1.Base 1 is formed (Fig. 2,3) by U magnet 4 and pedestal 5, and U type permanent magnet 4 also can be horseshoe-shaped structure or adds the fabricated structure that the metal magnetic conducting body is formed by two blocks of permanent magnets when specifically implementing.Sucker 2 is made up of two soft magnetism relay batons 6, magnetic field short-circuit bridges 7 and pedestal 9, shown in Fig. 4,5,6, rotating shaft mechanism 3 is made up of an axle sleeve that is arranged in base 1 (or axle) 8 and axle (or the axle sleeve) 10 that matches that be positioned on the sucker 2, and the effect of rotating shaft mechanism 3 is in order to prevent that base 1 and sucker 2 from making in relative motion (as the rotating) process disengaging magnetic force scope mutually.Two soft magnetism relay batons 6 in the sucker 2 are relative with two magnetic poles of the U type permanent magnet 4 installed in the base 1 respectively, the line of centres of the center line of magnetic field short-circuit bridges 7 and two magnetic relay batons 6 intersects and angle is spent greater than 0, and optimum angle is between the 30-150 degree; One end of magnetic relay baton 6 and U-shaped permanent magnet 4 one extremely relative, the other end is relative with the metal object that needs to inhale mutually.Two soft magnetic conductors 6 are two independently parts, can adopt material manufacturings such as ferrite, pure iron or silicon steel sheet, and they form a magnetic loop by the metal surface of being inhaled with U-shaped permanent magnet 4, realize firm adhesive.Make the firm adhesive of base and sucker after the suction and can not separate as taking off, the magnetic field short-circuit bridges 7 that simultaneously makes sucker lose magnetic force again also can be one by ferrite or pure iron material, the list structure that soft magnetic conductor material such as silicon steel sheet is made, its two end is relative with U type permanent magnet 4, after base 1 turns over certain angle, two magnetic poles of U type permanent magnet 4 and the two ends adhesive mutually of magnetic field short-circuit bridges 7, between U type permanent magnet 4 and magnetic field short-circuit bridges 7, form a magnetic loop, make base 1 and sucker 2 hold (as shown in Figure 7) firmly, and lost magnetism in the soft magnetism relay baton 6 at this moment, it separates automatically with the metal surface, realizes separating between whole attractor and the magnetic conductive metal surface.
During concrete enforcement, the shape of base 1 can be designed to different shape as required, and the shape of sucker 2 also can design accordingly according to the needs of outward appearance or function, base 1 and sucker 2 guiding mechanism in relative rotation can be undertaken spacing by above-mentioned axle and axle sleeve mechanism, also can be realized by the mode of the two direct socket, can be with base 1 as a big sleeve (or macro-axis), and sucker is realized that as macro-axis (or large shaft sleeve) location between the two rotates, in case the two breaks away from mutually in the moving process of spline.When the axle in adopting the foregoing description and the structure of axle sleeve, their installation site both can be at center position, also can be at other eccentric position place.
As base 1 of the present invention or sucker 2 in the specific implementation wherein any all can be used as active body and rotate, and another can be used as fixed body, rotating both can be by directly having made its rotation with hand, can realize that also it rotates by the method for setting up swing handle at its surface of shell, also can realize relatively rotating between them by a manual or motor-driven transmission mechanism.
The course of work of present embodiment is:
As shown in Figure 1, two magnetic poles of U type permanent magnet 4 contact with an end of two soft magnetism relay batons 6 under the normal condition, make soft magnetism relay baton 6 produce magnetic (being equivalent to the prolongation of the magnetic pole of U type permanent magnet 4), when running into the mangneto metal, form a magnetic loop between U type permanent magnet 4, soft magnetism relay baton 6 and the metal, produce very big suction, thereby sucker 2 is attracted firmly on the metal surface, need fixing special body size or be connected base 1 to be, also can be connected on the sucker 2, also can place between sucker 2 and the metal surface.When needs separate, only need rotating base 1 (or sucker 2), make base 1 and sucker 2 do the rotation of angle once, at this moment, after U type permanent magnet 4 turns over certain angle, its two magnetic poles attract mutually with two ends of magnetic field short-circuit bridges 7 immediately, between U type permanent magnet 4 and magnetic field short-circuit bridges 7, form magnetic loop, thereby base 1 and sucker 2 are firmly held, as shown in Figure 7, and this moment, the magnetic pole with U magnet 4 was not relative owing to soft magnetism relay baton 6, and it is zero that suffered magnetic field active force approaches, and can realize and the separating of metal surface.Base 1 and sucker are turned over certain angle in the opposite direction, when 4 two magnetic poles that make U magnet and soft magnetism relay baton 6 are relative, this moment, device not only of the present invention but also be in and treat duty just can be realized the target of stationary positioned as long as contact with magnetic conductive metal.
Embodiment two.
As shown in Figure 8.
A kind of attraction is reliable and take off and inhale Door magnet easily, mainly by shape of a hoof permanent magnet 25, two magnetic relay bars 26, magnetic short-circuit bridges 27 and two mounting blocks 28 that link to each other with the shop front, 29, wherein shape of a hoof permanent magnet 25 is fixedly linked with rotating shaft 22, one end of rotating shaft 22 passes mounting blocks 28 and links to each other with the door handle 21 that drives its rotation, magnetic relay bar 26 and magnetic short-circuit bridges 27 all are fixedly mounted on the mounting blocks 29, magnetic relay bar 26, magnetic short-circuit bridges 27 and mounting blocks 29 have constituted intermediate of the present invention, in case of necessity, mounting blocks 28, can be provided with positioning link bar 24 between 29.
The course of work of present embodiment is:
When attracting state, shape of a hoof permanent magnet 25, two magnetic relay bars 26 and between the metal magnetic conducting body of mounting blocks 29 1 sides, form a magnetic loop, thus mounting blocks 29 drive door and be installed in the one side wall on or metal magnetic conducting body on the ground inhale mutually to make together and be in open mode.This moment is as turning the handle 21 o'clock, driving rotating shaft 22 rotates, rotating shaft 22 drives shape of a hoof permanent magnet 25 and turns over an angle, make two magnetic poles of shape of a hoof permanent magnet 25 relative with the two ends of magnetic short-circuit bridges 27 from shape soft magnetism relay bar 26, magnetic relay bar 26 loses the effect of permanent magnet and loses magnetism, mounting blocks 29 with install on the wall or metal magnetic conducting body on the ground loses moving magneticaction and separates, door just can be shut easily, form magnetic loop between the magnetic force of shape of a hoof permanent magnet 25 and the magnetic short-circuit bridges 27 at this moment, magnetic force influence to external world is very little, can ignore.
Embodiment three.
As shown in Figure 9.
A kind of attraction is reliable and take off and inhale Door magnet easily, mainly by two blocks of permanent magnets 33, two magnetic relay bars 34, magnetic short-circuit bridges 35 is formed, two blocks of permanent magnets 33 link to each other by a band metal magnetic conducting contiguous block 37 and form a combined type U type permanent magnet, on metal magnetic conducting contiguous block 37, be connected with driving lever 36, two magnetic relay bars 34, magnetic short-circuit bridges 35 all is fixed on the sucker disk seat 31, magnetic relay bar 34, magnetic short-circuit bridges 35 and sucker disk seat 31 have constituted intermediate of the present invention, sucker disk seat 31 is provided with cover plate 32, combined type U type permanent magnet is arranged in the space of being made up of sucker disk seat 31 and cover plate 32, and driving lever 36 stretches out the gathering sill 38 on the cover plate 32.Two magnetic relay bars 34 and magnetic short-circuit bridges 35 are located along the same line, and (the two also can be on same straight line when specifically implementing, can be parallel to each other, also can be not parallel, the direction of motion that only need to change driving lever 36 this moment gets final product), one end of magnetic relay bar 34 is relative with permanent magnet 33, and the other end is with relative by suction magnetic conductive metal surface.
Combined type U type permanent magnet in the present embodiment also can directly replace with U type permanent magnet or shape of a hoof permanent magnet, and driving lever 6 can directly link to each other with them.
The course of work of present embodiment is:
During attracting state, permanent magnet 33, magnetic relay bar 34 and quilt are inhaled and are formed a magnetic loop between the metal magnetic conducting body, suction is in maximum rating (relevant with magnetic flux), door is in open mode, if go to draw from being parallel to magnetic relay rod axis direction, then suction is very big, is not easy to make sucker disk seat and metal magnetic conducting body to separate.This moment is as stirring driving lever 36, then since the active force of driving lever 36 perpendicular to magnetic line of force direction, permanent magnet just is easy to peel off magnetic relay bar 34, when it moves to the position of magnetic short-circuit bridges 35, two blocks of permanent magnets 33, form new magnetic loop immediately between connecting rod 37 and two magnetic short-circuit bridges 35, and can not have influence on the metal magnetic conducting body of being inhaled, simultaneously because magnetic relay bar 34 loses magnetic force, sucker disk seat and quilt are inhaled no suction existence between the metal magnetic conducting body, the door-inhale that just can realize present embodiment easily with inhaled separating between the metal magnetic conducting body, also just can realize the action of closing the door easily.
Embodiment four.
Shown in Figure 10,11.
A kind of attraction is reliable and take off and inhale Door magnet easily, it is mainly by horseshoe magnet 45, magnetic relay bar 46, magnetic short-circuit bridges 40, rotating handles 49 is formed, as Figure 10, magnetic relay bar 46 and 40 aggregate erections of magnetic short-circuit bridges are on a strut 44, magnetic relay bar 46, magnetic short-circuit bridges 40 and strut 44 have been formed intermediate of the present invention, strut 44 is fixed on the wall 41 by mount pad 48, rotating handles 49 is installed on the strut 44, horseshoe magnet 45 links to each other to be installed on the strut 44 with rotating handles 49 and also can rotate around it, one end of magnetic relay bar 46 is relative with the magnetic pole of horseshoe magnet 45, and the other end is with to be installed in the magnetic location-plate 47 of door on 42 relative.Described horseshoe magnet 45 can adopt fabricated structure, and it is formed (as Figure 11) by permanent magnet and junction plate 43.
The course of work of present embodiment is:
During attracting state, form a magnetic loop between the magnetic location-plate 47 on horseshoe magnet 45, two magnetic relay bars 46 and the door 42, door is in open mode.When rotating rotating handles 49, rotating handles 49 drives horseshoe magnet 45 and rotates around strut 44, two magnetic poles that drive horseshoe magnet 45 leave magnetic relay bar 46 and with the two ends adhesive mutually of magnetic short-circuit bridges 47, form magnetic loop this moment between horseshoe magnet 45 and magnetic short-circuit bridges 40, magnetic relay bar 46 is owing to the effect that loses magnetic force loses magnetism, automatic and magnetic location-plate 47 breaks away from, and door can be closed easily.
Make the parts of relative motion among the embodiment 1-4 or be in permanent magnet, permanent magnetic spare fixing body or the intermediate any, permanent magnet can be U type structure, also can be horseshoe-shaped structure, both can be monolithic construction, also can be fabricated structure.Described relative motion can be rotation, translation, slippage or its combination.
Embodiment 1-4 has only provided part specific embodiment of the present invention, for the people who knows this area, except above-mentioned four kinds of embodiments or its combining form, multiple concrete equivalent transformation mode can also be arranged, no matter but how it to change, the structure that reaches convenient separation all is considered to equivalence of the present invention and replaces so long as utilize magnetic relay bar (or rod) and magnetic short-circuit bridges to realize that the magnetic force loop is switched.
Claims (4)
1, a kind of attraction is reliable and take off and inhale magnetic attraction device easily, comprise permanent magnet, it is characterized in that permanent magnet and by inhale be equipped with between the magnetic conductive metal at least forms by two magnetic relay batons and magnetic short-circuit bridges, can do and the intermediate of permanent magnet relative motion.
2, attraction according to claim 1 is reliable and take off and inhale magnetic attraction device easily, it is characterized in that described permanent magnet or be U type permanent magnet, or be shape of a hoof permanent magnet, or the analog-U shaped permanent magnet of combined type for linking to each other and form by metal magnetic conducting body and permanent magnet.
3, attraction according to claim 1 is reliable and take off and inhale magnetic attraction device easily, the center line that it is characterized in that described magnetic field short-circuit bridges with the line of centres of the magnetic relay baton of two pairings crossing and the two angle greater than zero degree.
4, attraction according to claim 1 is reliable and take off and inhale magnetic attraction device easily, it is characterized in that the line of centres of the center line of described magnetic field short-circuit bridges and two magnetic relay batons or be located along the same line, or be parallel to each other, or both not parallel also non-intersect, promptly the center line of magnetic field short-circuit bridges is positioned at a side of the line of centres of two magnetic relay batons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100962168A CN100404781C (en) | 2006-10-08 | 2006-10-08 | Magnetic force attractor of reliable suction, and convenient desorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100962168A CN100404781C (en) | 2006-10-08 | 2006-10-08 | Magnetic force attractor of reliable suction, and convenient desorption |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1959050A true CN1959050A (en) | 2007-05-09 |
| CN100404781C CN100404781C (en) | 2008-07-23 |
Family
ID=38070890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100962168A Expired - Fee Related CN100404781C (en) | 2006-10-08 | 2006-10-08 | Magnetic force attractor of reliable suction, and convenient desorption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100404781C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240676B (en) * | 2008-01-25 | 2011-05-11 | 上海欧意机电五金有限公司 | Door lock jointing construction |
| WO2019205194A1 (en) * | 2018-04-24 | 2019-10-31 | 西人马联合测控（泉州）科技有限公司 | Magnetic mounting base |
| CN115199635A (en) * | 2021-04-08 | 2022-10-18 | 广州视源电子科技股份有限公司 | Sucker assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032232U (en) * | 1988-07-16 | 1989-02-08 | 周中立 | Magnetic door attractor |
| DE29622577U1 (en) * | 1996-12-31 | 1997-04-30 | Schneider, Roman, 93413 Cham | Buffer with activatable locking device |
| CN2454501Y (en) * | 2000-11-15 | 2001-10-17 | 杨先 | Combined rotary lock |
| CN2522560Y (en) * | 2002-01-29 | 2002-11-27 | 张宏 | Magnetic door snap |
| DE20208611U1 (en) * | 2002-06-03 | 2003-10-16 | Gesellschaft für Antriebstechnik Dr.-Ing. Günther Hammann GmbH & Co., 40549 Düsseldorf | Magnetic brake for door has a sliding neutralising element to vary the function of the brake |
| JP3940845B2 (en) * | 2004-01-28 | 2007-07-04 | 通 片田 | Door stopper |
-
2006
- 2006-10-08 CN CNB2006100962168A patent/CN100404781C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240676B (en) * | 2008-01-25 | 2011-05-11 | 上海欧意机电五金有限公司 | Door lock jointing construction |
| WO2019205194A1 (en) * | 2018-04-24 | 2019-10-31 | 西人马联合测控（泉州）科技有限公司 | Magnetic mounting base |
| CN115199635A (en) * | 2021-04-08 | 2022-10-18 | 广州视源电子科技股份有限公司 | Sucker assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100404781C (en) | 2008-07-23 |
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