CN102052016A - Magnetic lock adopting magnetic force to drive lock cylinder to rotate - Google Patents
Magnetic lock adopting magnetic force to drive lock cylinder to rotate Download PDFInfo
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- CN102052016A CN102052016A CN 201110005586 CN201110005586A CN102052016A CN 102052016 A CN102052016 A CN 102052016A CN 201110005586 CN201110005586 CN 201110005586 CN 201110005586 A CN201110005586 A CN 201110005586A CN 102052016 A CN102052016 A CN 102052016A
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- 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 10
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Abstract
The invention discloses a magnetic lock driving adopting magnetic force to drive a lock cylinder to rotate. The magnetic lock comprises a rotatable lock cylinder in a lock body, and a key matched with a center jack which is axially formed on the lock cylinder, wherein a plurality of first magnets are fixed in the wall of the center jack on the lock cylinder; a plurality of second magnets which correspond to the first magnets respectively when the key is correctly inserted into the center jack are fixed in an outer cylindrical surface matched with the center jack, of the key; and at least a part of the first magnets and the corresponding second magnets are in an opposite setting mode of different magnetic poles, so that driving force which ensures that the lock cylinder overcomes the set resistance and rotates is generated between the first magnets and the second magnets which are attracted with each other when the key is rotated. The magnetic lock has a simple structure, no person can clearly understand the distribution positions of the first magnets and the second magnets except the lock manufacturer, or know how to unlock the magnetic lock with how much magnetic force, so a good theft-proofing effect can be achieved.
Description
Technical field
The present invention relates to a kind of magnetic lock, be specifically related to a kind of magnetic lock of utilizing the magnetically-actuated lock core to rotate.
Background technology
Notice of authorization number discloses a kind of pole arrangement formula theftproof lock for the patent of invention of CN2623810Y (calling documents 1 in the following text).This theftproof lock comprises the key that is installed in rotating lock core in the lock body and matches with center hub (being called axial keyhole in the documents 1) on being axially disposed within this lock core, the movable contact position that is positioned at lock core and lock body is provided with at least two group band magnetic poles lock pearl, with described each group band magnetic pole lock pearl is corresponding polarity poles arranged respectively after this key correctly inserted center hub being provided with on the key, these have between polarity poles and the corresponding band magnetic pole lock pearl can to make respectively by mutual repulsion or attraction locks the movable contact position that pearl leaves lock core and lock body with magnetic pole.Because the lock of the band magnetic pole in the documents 1 pearl only plays the locking effect to lock core, lock core can be rotated also must drive lock core in other way.Yet, documents 1 does not spell out how to drive lock core, those skilled in the art can only determine by the step that is presented on key head in its accompanying drawing 1, documents 1 must be the linkage state that reaches lock core and the mutual kayser of key by the center hub bottom and the matching relationship of key head step, and then drives lock core by key.
Notice of authorization number discloses a kind of magnetic lock with rotational lock core structure for the patent of invention of CN2700487Y (calling documents 2 in the following text).Its main feature is wherein to be provided with lock core and stirs magnetic texure unit and lock core locking magnetic texure unit.Its lock core locking magnetic texure unit is in fact identical with the effect of band magnetic pole lock pearl in the documents 1, all is in the movable contact position of lock core and lock body lock core to be played the locking effect.It then is to drive the key that lock core rotates by key that lock core is stirred the magnetic texure unit.After key correctly inserts center hub, lock core second magnet that lock core is stirred in the magnetic texure unit is subjected to the key place graviational interaction of corresponding key first magnet with it, the correspondence that is sucked into this position on the key is radially in the concave inward structure, thereby make key and lock core be in the linkage state of mutual kayser, and then drive lock core by key.
This shows no matter documents 1 still is a documents 2, all must drive lock core by the structure that makes key and lock core be in the linkage state of mutual kayser under the situation of correctly inserting center hub at key and rotate; Simultaneously, the anti-theft feature of magnetic lock can only concentrate on again to be realized the band magnetic pole lock pearl structure that only plays the locking effect of lock core or lock core locking magnetic texure unit, and this inevitable requirement is designed the band magnetic pole lock pearl structure or the lock core locking magnetic texure unit of more complicated.
Summary of the invention
Technical problem solved by the invention promptly provides a kind of magnetic lock that can utilize the magnetically-actuated lock core to rotate, thereby no longer drives lock core by the linkage state that makes key and lock core be in mutual kayser.
This magnetic lock comprises the key that is installed in rotating lock core in the lock body and matches with center hub on being axially disposed within this lock core, the hole wall that is positioned at this center hub on the described lock core is installed with polylith first magnet, on the key with external cylindrical surface that this center hub cooperates in be installed with polylith after key correctly inserts center hub respectively with described each corresponding second magnet of first magnet, and, have at least between first magnet, second magnet corresponding of a part to be the mode that is oppositely arranged of opposite pole, thereby when key, make lock core overcome the resistance of setting and the driving force of rotating by generation between these first magnets of attracting each other and second magnet with it.
Obviously, the driving force that rotate by the resistance that generation between these first magnets of attracting each other and second magnet makes lock core overcome setting, the size of this driving force must be greater than hindering the resistance that lock core rotates.Obviously, have only when first magnet and second magnet and match, could guarantee to be the mode that is oppositely arranged of opposite pole between first magnet of specified quantity and second magnet in correct mode.Setting the resistance size that hinders the lock core rotation then can be achieved by multiple usual manner, such as: one group of rack-and-pinion can be set in magnetic lock, be converted into the translation of tooth bar in order to rotation with lock core, and assembling is used to hinder the spring of tooth bar motion on this tooth bar, and this spring just is slightly less than the driving force that lock core rotates in the elastic force size that tooth bar moves to just can open magnetic lock the time.Like this, lock core must overcome the elastic force of spring and rotate, and therefore as long as select the suitable spring of elastic force, the driving force that just can produce between first magnet and second magnet prevents when not enough that lock core from rotating, thereby magnetic lock can't be opened.In addition, can also design the various mechanisms that lock core rotates that hinder as required, such as torsion spring etc. directly is installed between lock core and lock body.
Can all be the mode that is oppositely arranged of opposite pole between second magnet that first magnet is corresponding with it respectively, but preferable way is to select to be the mode that is oppositely arranged of opposite pole between the first a part of magnet, second magnet corresponding with it, then be the mode that is oppositely arranged of like pole between first magnet of another part, second magnet corresponding with it, so making except that making man of Lock Factory other people be hard to tell second magnet which first magnet is corresponding with it actually is the mode that is oppositely arranged of opposite pole, second magnet which first magnet is corresponding with it is the mode that is oppositely arranged of like pole, has therefore also just strengthened the theftproof performance of magnetic lock.
On the basis of technique scheme, the present invention has also carried out following improvement, promptly in the lock core installation cavity groove of described lock body, also be provided with the interior annulus tube-in-tube structure of magnetic conduction, thereby outer peripheral face of annulus tube-in-tube structure and inner peripheral surface cooperate with the external cylindrical surface of the hole wall of the center hub of lock core and described key respectively and make in this annulus tube-in-tube structure not only make the rotating shaft of lock core but also the jack of double as key in this.Should in annulus tube-in-tube structure lock core can be completely enclosed within the lock body, and inner circumferential surface is smooth fully, the thief is difficult to from the endoporus of interior annulus tube-in-tube structure lock core be implemented to destroy, and plays the protective effect to lock core.
Owing to increased interior annulus tube-in-tube structure, the present invention can also be in described offers at least one groove on the outer peripheral face of annulus tube-in-tube structure, the hole wall that is positioned at this center hub on the described lock core is separately installed with the radially movable magnet that snaps in respective slot when magnetic lock is in the lock state, and is installed with key is correctly inserted after the center hub respectively and three magnet of described each movable magnet with the corresponding setting of the mode that is oppositely arranged of like pole on the key with in the external cylindrical surface that this center hub cooperates.
Because between the 3rd magnet and the movable magnet is with the corresponding setting of the mode that is oppositely arranged of like pole, therefore when movable magnet is subjected to the repulsive interaction of the 3rd magnet, groove in the end of movable magnet will break away from the annulus tube-in-tube structure, thus releasing is to the locking of lock core.Because existing polylith first magnet has at least one movable magnet again on the lock core, make magnetic lock of the present invention have theftproof performance more reliably.
Because the present invention directly utilizes magnetic force to drive lock core and rotates, can produce the magnetic force size that adheres to specification between the pair of magnets that therefore requires to be formed with corresponding first magnet that is provided with of the mode that is oppositely arranged of opposite pole and second magnet.For this reason, the present invention has also carried out following optimization, that is: in by the pair of magnets of being formed with corresponding first magnet that is provided with of the mode that is oppositely arranged of opposite pole and second magnet, have at least a magnet be length along the axially extended strip magnet of lock core, and positive and negative two magnetic poles of this strip magnet are radially-arranged along lock core.That is to say, all can be above-mentioned strip magnet with corresponding first magnet and second magnet that is provided with of the mode that is oppositely arranged of opposite pole, also can select wherein one as the strip magnet.Adopt this mode can make to produce bigger magnetic force between corresponding first magnet that is provided with of the mode that is oppositely arranged of opposite pole and second magnet.
The invention has the beneficial effects as follows: the not only more existing magnetic lock structure of this magnetic lock structure of the present invention is simpler, wherein each first magnet and second magnet can be enclosed in lock core and the key respectively, except that making man of Lock Factory other people both can't understand fully that the distributing position of each first magnet and second magnet was a corresponding relation, need not know great magnetic force could open magnetic lock actually yet, therefore can produce good anti-theft effect.This magnetic lock is particularly useful for electricity stake electric wire box, safety box and well lid antitheft on highway or road limit.
Description of drawings
Fig. 1 is the structural representation of magnetic lock of the present invention (embodiment 2) when lock-out state.
Fig. 2 is the structural representation of magnetic lock of the present invention (embodiment 2) after inserting key.
Fig. 3 is the structural representation of magnetic lock of the present invention (embodiment 2) when key.
Fig. 4 is the structural representation of key in the magnetic lock of the present invention (embodiment 2).
Fig. 5 is first kind of corresponding relation figure of first magnet in the magnetic lock of the present invention and second magnet.
Fig. 6 is second kind of corresponding relation figure of first magnet in the magnetic lock of the present invention and second magnet.
Fig. 7 is the third corresponding relation figure of first magnet in the magnetic lock of the present invention and second magnet.
Fig. 8 is the 4th kind of corresponding relation figure of first magnet in the magnetic lock of the present invention and second magnet.
Fig. 9 is the structural representation of magnetic lock of the present invention (embodiment 1) after inserting key.
Figure 10 is the schematic diagram of a kind of typical applications of magnetic lock of the present invention.
Be labeled as among the figure: lock body 1, lock core 2, first magnet 3 (first magnet 31, first magnet 32, first magnet 33), movable magnet 4, flexible member 5, key 6, second magnet 7 (second magnet 71, second magnet 72, second magnet 73), groove 8, center hub 9, interior annulus tube-in-tube structure 10, the 3rd magnet 11, magnetic lock 12, electricity stake 13, cover plate 14.
The specific embodiment
The present invention is described further below in conjunction with drawings and Examples.
Magnetic lock as shown in Figure 9, comprise the key 6 that is installed in rotating lock core 2 in the lock body 1 and matches with center hub on being axially disposed within this lock core 2, the hole wall that is positioned at this center hub on the described lock core 2 is along 8 first magnets 3 circumferentially evenly are installed at interval, be equipped with equally in the external cylindrical surface that cooperates with this center hub on the key 68 when key 6 is correct insert center hub after respectively with described each first magnet, 3 corresponding second magnet 7, and, wherein be the mode that is oppositely arranged of opposite pole between second magnet 7 that first magnet 3 of some is corresponding with it, thereby when key 6 by producing the driving force make lock core 2 overcome the resistance of setting and to rotate between these first magnets 3 of attracting each other and second magnet 7, and be the mode that is oppositely arranged of like pole between first magnet 3 of another part, second magnet 7 corresponding with it, so make except that making man of Lock Factory other people be hard to tell second magnet 7 which first magnet 3 is corresponding with it actually and be the mode that is oppositely arranged of opposite pole, and which first magnet 3 second magnet 7 corresponding with it is the mode that is oppositely arranged of like pole; In addition, lock core 2 also is connected with one group of rack-and-pinion (not shown), be converted into the translation of tooth bar in order to rotation with lock core 2, and assembling can hinder the spring (not shown) of tooth bar motion on this tooth bar, and this spring just is slightly less than the driving force that lock core rotates in the elastic force size that tooth bar moves to just can open magnetic lock the time.Like this, when correctly being inserted and rotated key 6, can impelling lock core 2 to overcome the elastic force of spring and rotate, open until magnetic lock by the driving force that produces between these first magnets 3 of attracting each other and second magnet 7.Described spring also plays the lock core 2 automatically reset effects that promote.
Magnetic lock shown in Fig. 1～3, comprise the key 6 that is installed in rotating lock core 2 in the lock body 1 and matches with center hub 9 on being axially disposed within this lock core 2, the hole wall that is positioned at this center hub 9 on the described lock core 2 is along 3 first magnets 31 circumferentially evenly are installed at interval, 32,33, be installed with in the external cylindrical surface that cooperates with this center hub 9 on the key 63 when key 6 is correct insert center hub 9 after respectively with described each first magnet 31,32,33 corresponding second magnets 71,72,73, each first magnet 31,32,33 second magnets 71 corresponding with it, 72, be the mode that is oppositely arranged of opposite pole between 73, thus when key 6 by these first magnets 31 of attracting each other, 32,33 and second magnet 71,72, produce the driving force that makes lock core 2 overcome the resistance of setting and rotate between 73; In addition, lock core 2 also is connected with one group of rack-and-pinion (not shown), be converted into the translation of tooth bar in order to rotation with lock core 2, and assembling hinders the spring (not shown) of tooth bar motion on this tooth bar, and this spring just is slightly less than the driving force that lock core rotates in the elastic force size that tooth bar moves to just can open magnetic lock the time; In addition, also be provided with the interior annulus tube-in-tube structure 10 of magnetic conduction in the lock core installation cavity groove of described lock body 1, thereby outer peripheral face of annulus tube-in-tube structure 10 and inner peripheral surface cooperate with the external cylindrical surface of the hole wall of the center hub 9 of lock core 2 and described key 6 respectively and make in this annulus tube-in-tube structure 10 not only make the rotating shaft of lock core 2 but also the jack of double as key 6 in this; And, in described, also have a groove 8 on the outer peripheral face of annulus tube-in-tube structure 10, the hole wall that is positioned at this center hub 9 on the described lock core 2 is equipped with the radially movable magnet 4 that snaps in respective slot 8 when magnetic lock is in the lock state by flexible member 5, is installed with in the external cylindrical surface that cooperates with this center hub 9 on the key 6 key 6 correct center hub 9 backs and three magnet 11 of described movable magnet 4 with the corresponding setting of the mode that is oppositely arranged of like pole of inserting.
The opening ways of this magnetic lock is: as shown in Figure 1, when magnetic lock was in the lock state, flexible member 5 promoted movable magnet 4 and snaps in the corresponding groove 8, and this moment, lock core 2 can't rotate; Behind correct insertion key 6 (as shown in Figure 2), on the key 6 with described movable magnet 4 to produce repulsive force between the 3rd magnet 11 of the corresponding setting of the mode that is oppositely arranged of like pole and the movable magnet 4, thereby movable magnet 4 is released groove 8, simultaneously, second magnet 71,72,73 attracts each other with first magnet 31,32,33 respectively again; This moment, key 6 can drive lock core 2 rotations (as shown in Figure 3, the rotation direction of arrow reflection key and lock core among the figure), opened up to magnetic lock.After loosing one's grip, promote lock core 2 by spring and automatically reset, taking-up key 6 back flexible members 5 promote movable magnet 4 once more and snap in the corresponding groove 8.
In the foregoing description 2, the structure of key 6 is as shown in Figure 4: for corresponding with first magnet 31,32,33 and movable magnet 4, second magnet 71,72,73 and the 3rd magnet 11 are along circumferentially being disposed in an evenly spaced relation in the external cylindrical surface of key 6, but, therefore can't distinguish the installation site of these magnets on key 6 in appearance because second magnet 71,72,73 and the 3rd magnet 11 are closed in the key 6.Certainly, no matter be embodiment 1 or embodiment 2, the installation site of each first magnet 3 or movable magnet 4 all can be positioned at the hole wall of this center hub 9 and arrange arbitrarily on lock core 2.
In embodiment 1 or embodiment 2, in by the pair of magnets of being formed with corresponding first magnet 3 that is provided with of the mode that is oppositely arranged of opposite pole and second magnet 7, can adopt four kinds of arrangements shown in Fig. 5～8.In Fig. 5～7, by have at least in the pair of magnets of being formed with corresponding first magnet 3 that is provided with of the mode that is oppositely arranged of opposite pole and second magnet 7 magnet be length along lock core 2 axially extended strip magnets, and positive and negative two magnetic poles of this strip magnet are radially-arranged along lock core 2.Such as, second magnet 7 is the strip magnet among Fig. 5, and first magnet 3 and second magnet 7 are the strip magnet among Fig. 6, and first magnet 3 then is the strip magnet among Fig. 7.And in Fig. 8, the length of first magnet 3 and second magnet 7 is all radially extended along lock core 2.Several arrangements shown in the preferred Fig. 5 of the application～7 because these several arrangements can produce bigger magnetic force between first magnet 3 and second magnet 7, thereby can reduce the quantity of first magnet 3 and second magnet 7.
As shown in figure 10, a kind of typical application occasion of magnetic lock of the present invention is on the electricity stake electric wire box on highway or road limit.At present, the cover plate 14 of electricity stake electric wire box is to be installed in the electricity stake 13 by threaded fastener, is difficult to open owing to threaded fastener gets rusty after a period of time, can only carry out the destructiveness dismounting to it.This magnetic lock of the present invention can be directly installed on the inboard of existing cover plate 14, and utilizes the socket of the patchhole of threaded fastener on the existing cover plate as key.Therefore, need not existing cover plate 14 is carried out complicated transformation or replaces and just can use magnetic lock of the present invention.
Claims (4)
1. the magnetic lock of utilizing the magnetically-actuated lock core to rotate, comprise the key (6) that is installed in rotating lock core (2) in the lock body (1) and matches with center hub (9) on being axially disposed within this lock core (2), it is characterized in that: the hole wall that is positioned at this center hub (9) on the described lock core (2) is installed with polylith first magnet (3), be installed with in the external cylindrical surface that key (6) is gone up with this center hub (9) cooperates polylith after key (6) correctly inserts center hub (9) respectively with described respectively corresponding second magnet of first magnet (3) (7), and, have at least between a part of first magnet (3) second magnet (7) corresponding to be the mode that is oppositely arranged of opposite pole, thereby produce the driving force that makes lock core (2) overcome the resistance of setting and rotate between first magnet (3) of when key (6), attracting each other and second magnet (7) by these with it.
2. the magnetic lock of utilizing the magnetically-actuated lock core to rotate as claimed in claim 1, it is characterized in that: also be provided with the interior annulus tube-in-tube structure (10) of magnetic conduction in the lock core installation cavity groove of described lock body (1), in this outer peripheral face of annulus tube-in-tube structure (10) and inner peripheral surface respectively with the hole wall of the center hub (9) of lock core (2) and described key (6) thus external cylindrical surface cooperates and makes this interior annulus tube-in-tube structure (10) not only make the rotating shaft of lock core (2) but also the jack of double as key (6).
3. the magnetic lock of utilizing the magnetically-actuated lock core to rotate as claimed in claim 2, it is characterized in that: also have at least one groove (8) on the outer peripheral face of annulus tube-in-tube structure (10) in described, the hole wall that is positioned at this center hub (9) on the described lock core (2) is separately installed with the radially movable magnet (4) that snaps in respective slot (8) when magnetic lock is in the lock state, and key (6) is gone up to be installed with in the external cylindrical surface with this center hub (9) cooperation key (6) is correctly inserted after the center hub (9) respectively and three magnet (11) of described each movable magnet (4) with the corresponding setting of the mode that is oppositely arranged of like pole.
4. as claim 1, the 2 or 3 described magnetic lock of utilizing the magnetically-actuated lock core to rotate, it is characterized in that: in by the pair of magnets of being formed with corresponding first magnet (3) that is provided with of the mode that is oppositely arranged of opposite pole and second magnet (7), have at least a magnet be length along the axially extended strip magnet of lock core (2), and positive and negative two magnetic poles of this strip magnet are radially-arranged along lock core (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100055867A CN102052016B (en) | 2011-01-12 | 2011-01-12 | Magnetic lock adopting magnetic force to drive lock cylinder to rotate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100055867A CN102052016B (en) | 2011-01-12 | 2011-01-12 | Magnetic lock adopting magnetic force to drive lock cylinder to rotate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102052016A true CN102052016A (en) | 2011-05-11 |
| CN102052016B CN102052016B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100055867A Expired - Fee Related CN102052016B (en) | 2011-01-12 | 2011-01-12 | Magnetic lock adopting magnetic force to drive lock cylinder to rotate |
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| Country | Link |
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| CN (1) | CN102052016B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013102A (en) * | 2017-06-12 | 2017-08-04 | 珠海优特电力科技股份有限公司 | Magnetic control lock |
| CN107083874A (en) * | 2017-06-28 | 2017-08-22 | 珠海优特电力科技股份有限公司 | Idle lock core |
| CN107700956A (en) * | 2017-10-31 | 2018-02-16 | 广州市安道给排水技术有限公司 | A kind of non-porous magnetic key operated lock |
| CN109667058A (en) * | 2019-01-16 | 2019-04-23 | 扬州市海力精密机械制造有限公司 | A kind of pressure knot arm for netting machine |
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| DE1280085B (en) * | 1964-01-25 | 1968-10-10 | Dr Georg Heimann | Magnetically operated tumblers in a rotary cylinder lock |
| CN2418206Y (en) * | 2000-01-25 | 2001-02-07 | 伍仁明 | Magnetic-controlled double-safety anti-theft lock |
| CN2474681Y (en) * | 2001-03-22 | 2002-01-30 | 林中哲 | Magnetic key lock assembly |
| CN2685471Y (en) * | 2004-02-19 | 2005-03-16 | 吴新强 | Antitheft magnetic lock barrel |
| US20070134061A1 (en) * | 2005-12-08 | 2007-06-14 | Nance Thomas A | Magnetic coupling device |
| CN201943455U (en) * | 2011-01-12 | 2011-08-24 | 任海清 | Magnetic lock with lock cylinder being rotated under driving of magnetic force |
-
2011
- 2011-01-12 CN CN2011100055867A patent/CN102052016B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1280085B (en) * | 1964-01-25 | 1968-10-10 | Dr Georg Heimann | Magnetically operated tumblers in a rotary cylinder lock |
| CN2418206Y (en) * | 2000-01-25 | 2001-02-07 | 伍仁明 | Magnetic-controlled double-safety anti-theft lock |
| CN2474681Y (en) * | 2001-03-22 | 2002-01-30 | 林中哲 | Magnetic key lock assembly |
| CN2685471Y (en) * | 2004-02-19 | 2005-03-16 | 吴新强 | Antitheft magnetic lock barrel |
| US20070134061A1 (en) * | 2005-12-08 | 2007-06-14 | Nance Thomas A | Magnetic coupling device |
| CN201943455U (en) * | 2011-01-12 | 2011-08-24 | 任海清 | Magnetic lock with lock cylinder being rotated under driving of magnetic force |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107013102A (en) * | 2017-06-12 | 2017-08-04 | 珠海优特电力科技股份有限公司 | Magnetic control lock |
| CN107013102B (en) * | 2017-06-12 | 2022-06-24 | 珠海优特电力科技股份有限公司 | Magnetic control lock |
| CN107083874A (en) * | 2017-06-28 | 2017-08-22 | 珠海优特电力科技股份有限公司 | Idle lock core |
| CN107083874B (en) * | 2017-06-28 | 2022-05-13 | 珠海优特电力科技股份有限公司 | Idle lock cylinder |
| CN107700956A (en) * | 2017-10-31 | 2018-02-16 | 广州市安道给排水技术有限公司 | A kind of non-porous magnetic key operated lock |
| CN107700956B (en) * | 2017-10-31 | 2019-03-05 | 广州市安道给排水技术有限公司 | A kind of non-porous magnetic key operated lock |
| CN109667058A (en) * | 2019-01-16 | 2019-04-23 | 扬州市海力精密机械制造有限公司 | A kind of pressure knot arm for netting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102052016B (en) | 2012-08-22 |
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