EP2829671A1 - Shock-proof mechanical magnetic lock - Google Patents
Shock-proof mechanical magnetic lock Download PDFInfo
- Publication number
- EP2829671A1 EP2829671A1 EP13765180.8A EP13765180A EP2829671A1 EP 2829671 A1 EP2829671 A1 EP 2829671A1 EP 13765180 A EP13765180 A EP 13765180A EP 2829671 A1 EP2829671 A1 EP 2829671A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- magnet
- stop ring
- magnetic lock
- shock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000758 substrate Substances 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 241001661918 Bartonia Species 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
- E05C19/16—Devices holding the wing by magnetic or electromagnetic attraction
- E05C19/166—Devices holding the wing by magnetic or electromagnetic attraction electromagnetic
Abstract
Description
- The present invention relates to a lock, specifically, it relates to a shock-proof mechanical magnetic lock.
- A shock-proof mechanical magnetic lock in the prior art is illustrated in
Figure 1 and Figure 2 , aniron plate 111 is located on one side of the lock, wherein apull plug 112 vertically protruding from theiron plate 111, and amagnet 121 is located on the other side of the lock, wherein asleeve 122 is located in themagnet 121 and has a top opening for inserting thepull plug 112, a stop ring 123 is sleeved outside thesleeve 122. Wherein, thepull plug 112 has a flange in the end. Thesleeve 122 comprises a number of round holes located on the sidewall thereof, and each of the round holes receives aball 124. The upper aperture of the center hole of the stop ring 123 is larger than the lower aperture of the center hole of the stop ring 123. The bottom ofsleeve 122 is fixed to asubstrate 126 by means of abottom connecting piece 127, wherein thesubstrate 126 is positioned below themagnet 121, the stop ring 123 is fixed to themagnet 121, themagnet 121 and the stop ring 123 can vertically move relative to thesleeve 122. - One end of the
bottom connecting piece 127 is fixed to the bottom ofsleeve 122 which positioned above thesubstrate 126; the other end is fixed to thecushion 125 which positioned below thesubstrate 126. Thecushion 125 has upper and lower flat surfaces, which are substantially rectangular in shape. - Limiting
screw 128 with one end fixed on themagnet 121, and the screw stems extend through the corresponding holes onsubstrate 126 and form a nut at the distal end, the diameter of the corresponding holes on thesubstrate 126 are larger than the screw stem diameter of limitingscrew 128, but smaller than the nut diameter.Springs 129, which sleeved outside the limitingscrew 128, are stuck between thesubstrate 126 and the nut of limitingscrew 128. In the known lock structure, two limitingscrews 128 are arranged on both sides of thesleeve 122, and each of the limitingscrews 128 is respectively sleeved by aspring 129. - When the lock is energized, the door is closed, and at the same time the magnetic field generated by the
magnet 121 attracts theiron plate 111, thepull plug 112 is inserted into the internal cavity from the top opening ofsleeve 122, which is provided within themagnet 121. As shown inFigure 1 , at the time, theballs 124 are surrounded by the portion having a large diameter of the stop ring 123. Therefore, the flange at the end of thepull plug 112 can glide into thesleeve 122. In this case, the locking force only comprises the attraction force generated by themagnet 121. When an external force acts on theiron plate 111, due to the action of attraction force, theiron plate 111 will pull themagnet 121 so as to overcome the elastic force of the springs, then themagnet 121 separates from thesubstance 126. As shown inFigure 2 , the stop ring 123 moves upward relative to thesleeve 122, and theballs 124 are surrounded by the portion having a small diameter of the stop ring 123. Theballs 124 are squeezed radially toward the axis of the sleeve and hold the flange at the end of thepull plug 112, and the door cannot be opened. - The known magnetic lock has a short service life, for example, only has80-120 thousand times of service life. The impact resistance of the lock is poor and cannot meet the requirements of customers. The lock often gets stuck, namely, locking easily occurs between the balls and the pull plug. Two reset springs are easy to fracture. The cushion on the bottom connecting piece has structure defects. When the door rotates, the turning of the lock is insufficient as rotating with the iron plate in multiple directions. Due to the uneven force, leverage effect occurs in the lock. Therefore, the lock is easy to open, which has a lower security.
- One of the technical problems solved by the present invention is to provide a shock-proof mechanical magnetic lock having a more durable structure, which is also simpler and safer.
- To solve the above technical problems, the present invention adopts the following technical solution:
- A shock-proof mechanical magnetic lock comprises: an iron plate located on one side, a pull plug vertically protruding from the iron plate, a magnet located on the other side, a sleeve located in the magnet and having a top opening for inserting the pull plug, and a stop ring sleeved outside the sleeve. The pull plug has a flange in the end. A mechanism is provided on the sleeve and the stop ring, and the components of the mechanism cooperate with each other to adjust the aperture of internal cavity of the sleeve. The stop ring is fixed to the magnet, and the bottom of sleeve is mounted to a substrate by means of a bottom connecting piece, the substrate is positioned below the magnet. The magnet and the stop ring can axially move relative to the sleeve. A spring is arranged between the sleeve and the stop ring.
- As for the aforesaid shock-proof mechanical magnetic lock, one end of the bottom connecting piece is fixed to the bottom of the sleeve. The other end of the bottom connecting piece is fixed to the cushion, which is positioned below the substrate. The bottom of sleeve passes through the corresponding opening on the substrate, and abuts against the cushion.
- As for the aforesaid shock-proof mechanical magnetic lock, the diameter of the corresponding opening on the substrate is larger than the bottom diameter of the sleeve, but smaller than the maximum diameter of the horizontal cross-section of the cushion.
- As for the aforesaid shock-proof mechanical magnetic lock, the bottom connecting piece is a screw.
- As for the aforesaid shock-proof mechanical magnetic lock, the cushion has upper and lower arc-shaped surfaces.
- As for the aforesaid shock-proof mechanical magnetic lock, the upper sidewalls of the sleeve extend radially outward to form a flange.
- As for the aforesaid shock-proof mechanical magnetic lock, the flange located at the opening of the sleeve has a larger diameter than the diameter of the outer wall of the stop ring.
- As for the aforesaid shock-proof mechanical magnetic lock, the substrate is formed by aluminum groove.
- Compared with the prior art, the technical solution of the present invention mainly has the following advantages:
- 1. Remove the two springs and two limiting screws in the known lock structure, and arrange a spring between the sleeve and the stop ring so as to improve the service life of the lock, for example, the service life can be increased from the original 80-120 thousand times to 500 thousand times now.
- 2. The cushion sleeved outside the bottom connecting piece has been improved; the current cushion with a spherical surface takes place of the original rectangular cushion. Thus, when the door rotates, the magnet can rotate in multiple directions with the iron plate, so as to avoid the original dull state and improve the impact resistance of the lock. By the impact testing, the present impact resistance can be increased from 120J to 160J.
- 3. The opening structure at the top of the sleeve is simple and can effectively prevent dust from entering the inside of the lock, which can reduce the probability of the internal balls stuck.
- 4. Reduce the assembly parts such that the cost of processing and assembly is decreased.
- 5. Fixing mechanism of the sleeve fits with the substrate by the spherical surface, the random rotating cushion with spherical surface can cooperate with the rotation of the door well. When the door is rotated, the attracted iron plate and magnet can rotate in multiple directions with the door. Thus, it can greatly overcome the defects caused by rotation of the door. Therefore, the door is not easy to open and the security is improved.
-
-
Figure 1 is a schematic view of a known magnetic lock in locked state, which is not subjected to the external forces; -
Figure 2 is a schematic view of the magnetic lock ofFigure 1 in locked state, which is subjected to the external forces; -
Figure 3 is a schematic view of the magnetic lock according to the present invention in locked state, which is not subjected to the external forces; -
Figure 4 is a schematic view of the magnetic lock ofFigure 3 in locked state, which is subjected to the external forces. - Referring to
Figure 3 and Figure 4 , the shock-proof mechanical magnetic lock of the present invention comprises aniron plate 211 located on one side, apull plug 212 vertically protruding from theiron plate 211, amagnet 221 located on the other side, asleeve 222 located in themagnet 221 and having a top opening for inserting thepull plug 212, and astop ring 223 sleeved outside thesleeve 222. Wherein, thepull plug 212 has a flange in the end. A mechanism is provided on thesleeve 222 and thestop ring 223, and the components of the mechanism cooperate with each other to adjust the aperture of internal cavity of thesleeve 222. In one aspect, the mechanism comprises a number of round holes located on the sidewall ofsleeve 222, and each of the round holes receives aball 224, in another aspect, a step is formed on the inner surface of the sidewall of thestop ring 223, and the upper aperture of the internal cavity of thestop ring 223 is larger than the lower aperture of the internal cavity of thestop ring 223. Thestop ring 223 is fixed to themagnet 221, and by means of abottom connecting piece 227, the bottom ofsleeve 222 can be rotatably mounted tosubstrate 226 positioned below themagnet 221, relative to thesubstrate 226. Themagnet 221 and stopring 223 can axially move relative to thesleeve 222. Aspring 229 is arranged between thesleeve 222 and thestop ring 223. - One end of the
bottom connecting piece 227 is fixed to the bottom ofsleeve 222, and the other end of thebottom connecting piece 227 is fixed to thecushion 225, which is positioned below thesubstrate 226. The bottom ofsleeve 222 passes through the corresponding opening on thesubstrate 226, and abuts against thecushion 225, and the diameter of the corresponding opening on thesubstrate 226 is larger than the bottom diameter ofsleeve 222, but smaller than the maximum diameter of the horizontal cross-section of thecushion 225. Wherein, thebottom connecting piece 227 is preferably a screw. Thecushion 225, which sleeved outside the screw stem, is preferably an iron sheet having upper and lower arc-shaped surfaces, wherein the screw stem refers to the portion between the bottom ofsleeve 222 and the nut. - Preferably, each of the upper sidewalls of
sleeve 222 extends radially outward to form a flange. More preferably, the flange of thesleeve 222 in the opening has a larger diameter than the diameter of the outer wall of thestop ring 223. - As an embodiment, the
substrate 226 can be formed by aluminum groove. The number of the round holes on the sidewall of thesleeve 222 can be six, and theballs 224 can be six steel balls. - The shock-proof mechanical magnetic lock of the present invention achieves the process of locking and unlocking by means of the electromagnetic attracting and releasing. The transformation between the electromagnetic force and mechanical force is achieved by pulling the components so as to generate displacement via electromagnetic attraction.
- When the lock is energized, the door is closed, and at the same time the magnetic field generated by the
magnet 221 attracts theiron plate 211 located in the other side. Meanwhile, thepull plug 212 is inserted into the internal cavity from the top opening ofsleeve 222, which provided within themagnet 221. As shown inFigure 3 , at the time, theballs 224 in thesleeve 222 are surrounded by the portion having a large diameter of thestop ring 223, the flange at the end of thepull plug 212 glides across theballs 224 into the internal cavity ofsleeve 222. In this case, locking is maintained by the magnetic attraction force generated between themagnet 221 and theiron plate 211, and there is no mechanical force. The locking force is small. - When an external force acts on the
iron plate 211, since there is an attraction force between themagnet 221 and theiron plate 211, themagnet 221 driven by theiron plate 211 leaves thesubstrate 226. As shown inFigure 4 , thestop ring 223 overcomes the elastic force of thespring 229 and moves upward relative to thesleeve 222, until theballs 224 in thesleeve 222 are surrounded by the portion having a small diameter of thestop ring 223. Theballs 224 in thesleeve 222 are squeezed radially toward the axis of the sleeve by thestop ring 223 and hold the flange at the end of the insertedpull plug 212 tightly, which produces a self-locking and converts to a mechanical tension. Therefore, the big tension locked state is achieved. In this case, both the attraction force ofmagnet 221 and the mechanical force generated by the lockedballs 224 play a role to achieve the purpose of locking, which maintains a larger locking force. - When the power is cut, the magnet field of
magnet 221 vanishes. Thestop ring 223 resets under the action of the elastic force ofspring 229, during the process, thestop ring 223 actuates themagnet 221 to move to thesubstrate 226 and abuts against thesubstrate 226 again. At the time, theballs 224 in thesleeve 222 are surrounded by the portion having a large diameter of thestop ring 223. When the pre-tension (pre-pressure) acting on theiron plate 211 is lower than the prescribed requirement, the flange at the end of thepull plug 212 is extracted out from thesleeve 222, theiron plate 211 separates from themagnet 221, then unlocking is realized. Since thespring 229 has a predetermined restoring force, if the pre-tension (pre-pressure) is too large, the elastic force is not sufficient to reset thestop ring 223, and thepull plug 212 cannot be extracted out from thesleeve 222. Therefore, it cannot be unlocked. Thus, only when the pre-tension (pre-pressure) is lower than the prescribed value, it can be unlocked.
Claims (8)
- A shock-proof mechanical magnetic lock, comprising: an iron plate (211) located on one side of the magnetic lock, a pull plug (212) vertically protruding from the iron plate (211), a magnet (221) located on the other side of the magnetic lock, a sleeve (222) located inside the magnet (221) and having a top opening for inserting the pull plug (212), and a stop ring (223) sleeved outside the sleeve (222); the pull plug (212) has a flange in the end, a mechanism is provided on the sleeve (222) and the stop ring (223), and the components of the mechanism cooperate with each other to adjust the aperture of internal cavity of the sleeve (222); the stop ring (223) is fixed to the magnet (221), characterized in that, the bottom of sleeve (222) is mounted to a substrate (226) by means of a bottom connecting piece (227), the substrate (226) is positioned below the magnet (221); the magnet (221) and the stop ring (223) can axially move relative to the sleeve (222); a spring (229) is arranged between the sleeve (222) and the stop ring (223).
- The shock-proof mechanical magnetic lock according to claim 1, characterized in that, one end of the bottom connecting piece (227) is fixed to the bottom of sleeve (222), the other end is fixed to the cushion (225), which is positioned below the substrate (226); the bottom of sleeve (222) passes through the corresponding opening on the substrate (226), and abuts against the cushion (225).
- The shock-proof mechanical magnetic lock according to claim 2, characterized in that, the diameter of the corresponding opening on the substrate (226) is larger than the bottom diameter of sleeve (222), and smaller than the maximum diameter of the horizontal cross-section of cushion (225).
- The shock-proof mechanical magnetic lock according to claim 1 or 2, characterized in that, the bottom connecting piece (227) is a screw.
- The shock-proof mechanical magnetic lock according to claim 2, characterized in that, the cushion (225) has upper and lower arc-shaped surfaces.
- The shock-proof mechanical magnetic lock according to claim 1, characterized in that, the upper sidewalls of the sleeve (222) extend radially outward to form a flange.
- The shock-proof mechanical magnetic lock according to claim 6, characterized in that, the flange located at the opening of the sleeve (222) has a larger diameter than the diameter of the outer wall of stop ring (223).
- The shock-proof mechanical magnetic lock according to claim 1, characterized in that, the substrate (226) is formed by aluminum groove.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210079316.5A CN102619404B (en) | 2012-03-22 | 2012-03-22 | A kind of shock-proof mechanical magnetic lock |
PCT/CN2013/073043 WO2013139297A1 (en) | 2012-03-22 | 2013-03-22 | Shock-proof mechanical magnetic lock |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2829671A1 true EP2829671A1 (en) | 2015-01-28 |
EP2829671A4 EP2829671A4 (en) | 2016-03-09 |
EP2829671B1 EP2829671B1 (en) | 2020-08-26 |
Family
ID=46559585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13765180.8A Active EP2829671B1 (en) | 2012-03-22 | 2013-03-22 | Shock-proof mechanical magnetic lock |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP2829671B1 (en) |
CN (1) | CN102619404B (en) |
BR (1) | BR112014023326B1 (en) |
DK (1) | DK2829671T3 (en) |
ES (1) | ES2822602T3 (en) |
PL (1) | PL2829671T3 (en) |
PT (1) | PT2829671T (en) |
RU (1) | RU2014136548A (en) |
WO (1) | WO2013139297A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102619404B (en) * | 2012-03-22 | 2016-08-03 | 上海欧一安保器材有限公司 | A kind of shock-proof mechanical magnetic lock |
CN103938925B (en) * | 2014-03-31 | 2016-03-16 | 广东雅洁五金有限公司 | The lockset of modified node method |
CN104695763B (en) * | 2015-01-16 | 2017-02-22 | 余姚市达尔曼五金有限公司 | Lock cylinder structure of press type escape lock |
CN106984875B (en) * | 2017-05-31 | 2019-10-11 | 苏州松翔电通科技有限公司 | A kind of quick positioning locking mechanism and full automatic tapping equipment |
CN108005487B (en) * | 2017-11-28 | 2023-04-11 | 宁波美固力磁电有限公司 | Quick plug lock structure |
US10253528B1 (en) * | 2018-02-21 | 2019-04-09 | Axtuator OY | Digital lock |
RU198653U1 (en) * | 2020-03-05 | 2020-07-21 | Общество с ограниченной ответственностью "Инженерно-технический центр "ПРОМИКС" | ELECTROMECHANICAL LOCK RIG |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19639545C1 (en) * | 1996-09-26 | 1997-12-18 | Ikon Praezisionstechnik | Electromagnetic locking device for cylinder lock |
US6948685B2 (en) * | 2003-10-27 | 2005-09-27 | Hr Textron, Inc. | Locking device with solenoid release pin |
ES2557166T3 (en) * | 2006-07-20 | 2016-01-22 | Shanghai One Top Corporation | Magnetic lock means with mechanical resistance or locking auxiliary means |
CN101240676B (en) * | 2008-01-25 | 2011-05-11 | 上海欧意机电五金有限公司 | Door lock jointing construction |
CN201206370Y (en) * | 2008-04-11 | 2009-03-11 | 梁美卿 | Magnetic lock |
CN101532351B (en) * | 2009-04-17 | 2011-12-21 | 上海欧一安保器材有限公司 | Electricity-saving pulling plug type lock structure |
CN102619404B (en) * | 2012-03-22 | 2016-08-03 | 上海欧一安保器材有限公司 | A kind of shock-proof mechanical magnetic lock |
CN202596318U (en) * | 2012-03-22 | 2012-12-12 | 上海欧一安保器材有限公司 | Suspension machine magnetic lock |
-
2012
- 2012-03-22 CN CN201210079316.5A patent/CN102619404B/en active Active
-
2013
- 2013-03-22 WO PCT/CN2013/073043 patent/WO2013139297A1/en active Application Filing
- 2013-03-22 PT PT137651808T patent/PT2829671T/en unknown
- 2013-03-22 EP EP13765180.8A patent/EP2829671B1/en active Active
- 2013-03-22 PL PL13765180.8T patent/PL2829671T3/en unknown
- 2013-03-22 ES ES13765180T patent/ES2822602T3/en active Active
- 2013-03-22 BR BR112014023326-8A patent/BR112014023326B1/en active IP Right Grant
- 2013-03-22 RU RU2014136548A patent/RU2014136548A/en not_active Application Discontinuation
- 2013-03-22 DK DK13765180.8T patent/DK2829671T3/en active
Also Published As
Publication number | Publication date |
---|---|
WO2013139297A1 (en) | 2013-09-26 |
CN102619404B (en) | 2016-08-03 |
BR112014023326B1 (en) | 2020-10-20 |
PT2829671T (en) | 2020-11-06 |
RU2014136548A (en) | 2016-05-20 |
EP2829671A4 (en) | 2016-03-09 |
EP2829671B1 (en) | 2020-08-26 |
ES2822602T3 (en) | 2021-05-04 |
DK2829671T3 (en) | 2020-11-02 |
CN102619404A (en) | 2012-08-01 |
PL2829671T3 (en) | 2021-02-22 |
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