GB2488606A - Electromagnetic security device - Google Patents

Electromagnetic security device Download PDF

Info

Publication number
GB2488606A
GB2488606A GB1106538.0A GB201106538A GB2488606A GB 2488606 A GB2488606 A GB 2488606A GB 201106538 A GB201106538 A GB 201106538A GB 2488606 A GB2488606 A GB 2488606A
Authority
GB
United Kingdom
Prior art keywords
access cover
electromagnet
locking system
armature
access
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.)
Withdrawn
Application number
GB1106538.0A
Other versions
GB201106538D0 (en
Inventor
Jonathan Mark Lill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lill Petrol Pump & Tank Ltd G
Original Assignee
Lill Petrol Pump & Tank Ltd G
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lill Petrol Pump & Tank Ltd G filed Critical Lill Petrol Pump & Tank Ltd G
Publication of GB201106538D0 publication Critical patent/GB201106538D0/en
Publication of GB2488606A publication Critical patent/GB2488606A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/006—Locks or fastenings for special use for covers or panels
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1427—Locking devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0046—Electric or magnetic means in the striker or on the frame; Operating or controlling the striker plate
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B2045/063—Electric alarm locks by movement of the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B43/00—Time locks
    • E05B43/005—Timer devices controlling electrically operated locks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

An access cover locking system comprising an electromagnet 3, an armature plate 2 and a control box. When energised the electromagnet holds the armature to secure / lock the access cover. The locking system may have an internal reed switch for support of alarm systems. The locking system may have an autodialer for remote alarm use. The locking system may have a timer to enable automatic locking out of hours. The device is intended to eliminate the unauthorised removal of underground fuel storage tank access covers. The electromagnetic lock 3 shown secured to the access cover frame 6 via two fixings and a bracket 4, with an armature plate 2 is secured to the access cover 5 directly beneath the lifting aperture 1. When the electromagnet is energised, as there is a holding force between the electromagnet 3 and the armature 2 the access cover 5 cannot be removed.

Description

COVERLOCK ELECTROMAGNETIC SECURITY DEVICE
This device relates to the use of an electromagnetic lock to secure underground fuel storage tank access covers. The device enables remote locking / unlocking of the access covers. Underground fuel storage tanks are increasingly becoming a target for fuel theft where very few deterrents are available.
Several problems exist with current security measures available at present. For
example:
Some applications involve a steel security plate installed under the access cover. These do offer an acceptable method of security but due to their method of installation vulnerability to vandalism and costly damage to the surrounding facilities create a problem.
Security plates also offer no visual means of protection as storage tank contents labels (installed by law) are still visible through the plate advertising the contents.
These plates offer now means of remote alarming, alerting personnel to unauthorised access.
Essential maintenance work can be hindered due to the removal and reinstallation of such security plates where installed.
The coverlock electromagnetic device described herein overcomes these problems.
The diagram in figure 1 shows an example of an underground fuel storage tanks access cover (5) in place within the access cover frame (6). An electromagnetic lock (3) is fixed to a support bracket (4). This support bracket (4) is also attached to the access cover frame / wall (7). An Armature plate (2) is secured onto the access cover (5) directly beneath the lifting aperture (1).
The diagram in figure 2 shows a close up view of the electromagnet (17) and armature plate (18).
The diagram in figure 3 shows the circuit diagram of a typical installation.
The diagram in figure 4 shows a 5 core supply cable (8). This is wired to the electromagnet (3) and supplies a 12v dc current to it. Once energised the holding force is applied by the electromagnet (3) to the armature plate (2) holding the access cover (5) in place within the access cover frame (6).
The positioning of the armature plate (2) beneath the lifting aperture is essential for maximum holding force.
The electromagnet (3) is secured to a support bracket (4) which is secure by two fixings through the cover frame I wall assembly (7).
The supply cable (8) is constructed using S separate cores. Two cores supply the 12v + / 0 volts and the remaining three cores are for the normally closed switch outputs on the integral reed switch (10). This switched output would trigger in the event of an unauthorised removal of the access cover (5) while the electromagnet (3) is energised.
The electromagnet (3) is supplied by a 12v DC (16) supply. This supply is connected via a control box (9) which houses a 240 volt / 12v transformer (13).
Alternatively a timer (11) can be installed within the circuit to allow the electromagnet (3) to only become energised at chosen periods of the day.
Prior to the control box (9) a switched fuse (14) spur is installed to allow the deactivation of the electromagnet where maintenance is required.
More than one electromagnet (3) can be controlled by one control box (9).
Additional features tot the control box (9) would be the incorporation of an autodiler (14). This is where upon an alarm trigger form the electromagnet would create an output signal to an autodialer (14) alerting remote personnel.
This coverlock electromagnetic locking system not only prevents the unauthorised removal the access cover (5) but also alerts remote personnel if the were removed by other means. Visual advertising of the tanks contents labelling is also removed as the access cover (5) cannot be removed.

Claims (5)

  1. CLAIMS: 1. An access cover locking system comprising of an electromagnet, armature plate & control box. When energised a holding force is created between the armature and the electromagnet.
  2. 2. An access cover locking system as described in claim 1, in which the addition of an internal reed switch is incorporated to support third party alarm systems.
  3. 3. An access cover locking system as described in claim 1 & 2 in which the magnetic reed switch output is connected to an autodialer for remote alarming.
  4. 4. An access cover locking system as described in claim 1 where an armature plate is secured directly beneath the access covers lifting aperture
  5. 5. An access cover locking system as described in claim 1 where a timer is incorporated to enable automatic locking during out of hours use.
GB1106538.0A 2011-02-23 2011-04-18 Electromagnetic security device Withdrawn GB2488606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1103127.5A GB201103127D0 (en) 2011-02-23 2011-02-23

Publications (2)

Publication Number Publication Date
GB201106538D0 GB201106538D0 (en) 2011-06-01
GB2488606A true GB2488606A (en) 2012-09-05

Family

ID=43881556

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1103127.5A Ceased GB201103127D0 (en) 2011-02-23 2011-02-23
GB1106538.0A Withdrawn GB2488606A (en) 2011-02-23 2011-04-18 Electromagnetic security device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1103127.5A Ceased GB201103127D0 (en) 2011-02-23 2011-02-23

Country Status (1)

Country Link
GB (2) GB201103127D0 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2492651A (en) * 2011-07-05 2013-01-09 Scania Cv Ab Locking device to prevent access to a handle in an emergency door
CN104110172A (en) * 2014-05-21 2014-10-22 福建三鑫隆新材料技术开发股份有限公司 Well lid opening multi-channel distribution alarm method and system based on electronic lock
CN104120741A (en) * 2014-07-24 2014-10-29 厦门翔磊贸易有限公司 Safety warning device of well lid
CN108457304A (en) * 2018-03-28 2018-08-28 合肥云智物联科技有限公司 Cable shaft based on Phase of Electric Power Projects and its monitoring system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111962562B (en) * 2020-09-10 2022-01-04 河北鹏博通信设备有限公司 Environment-friendly energy-saving anti-theft well lid
CN112343436A (en) * 2020-11-04 2021-02-09 北京安洁康生物科技有限公司 Linkage lock of anti-terrorist anti-poison safety water tank cover and unlocking and locking method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720128A (en) * 1985-02-12 1988-01-19 Reliable Security Systems, Inc. Magnetic emergency exit door lock with time delay
US5000497A (en) * 1990-03-26 1991-03-19 Arthur Geringer Electromagnetic door lock device
US5376910A (en) * 1993-06-28 1994-12-27 Geringer; Arthur Electromagnet coil assembly and mounting apparatus and method for use in installing same
CN2310846Y (en) * 1997-10-20 1999-03-17 张刚 Electro-magnetic lock mounting structure for intercom theft-proof door for building
DE10043974A1 (en) * 2000-09-05 2002-03-14 Geze Gmbh Security arrangement for door or window system has locking arrangement visually inconspicuously mounted in door plane in gap produced in closed position of movable panel
CN1804240A (en) * 2006-01-24 2006-07-19 鲍贵芳 Anti-theft method for well cover and anti-theft well cover therewith
CN201158828Y (en) * 2008-05-14 2008-12-03 腾达建设集团股份有限公司 Anti-stealing manhole cover

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720128A (en) * 1985-02-12 1988-01-19 Reliable Security Systems, Inc. Magnetic emergency exit door lock with time delay
US5000497A (en) * 1990-03-26 1991-03-19 Arthur Geringer Electromagnetic door lock device
US5376910A (en) * 1993-06-28 1994-12-27 Geringer; Arthur Electromagnet coil assembly and mounting apparatus and method for use in installing same
CN2310846Y (en) * 1997-10-20 1999-03-17 张刚 Electro-magnetic lock mounting structure for intercom theft-proof door for building
DE10043974A1 (en) * 2000-09-05 2002-03-14 Geze Gmbh Security arrangement for door or window system has locking arrangement visually inconspicuously mounted in door plane in gap produced in closed position of movable panel
CN1804240A (en) * 2006-01-24 2006-07-19 鲍贵芳 Anti-theft method for well cover and anti-theft well cover therewith
CN201158828Y (en) * 2008-05-14 2008-12-03 腾达建设集团股份有限公司 Anti-stealing manhole cover

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2492651A (en) * 2011-07-05 2013-01-09 Scania Cv Ab Locking device to prevent access to a handle in an emergency door
GB2492651B (en) * 2011-07-05 2014-01-08 Scania Cv Ab Locking device to prevent access to a handle in an emergency door
CN104110172A (en) * 2014-05-21 2014-10-22 福建三鑫隆新材料技术开发股份有限公司 Well lid opening multi-channel distribution alarm method and system based on electronic lock
CN104110172B (en) * 2014-05-21 2017-01-04 福建三鑫隆信息技术开发股份有限公司 Well lid based on electric lock head opens the method and system that multichannel distribution is reported to the police
CN104120741A (en) * 2014-07-24 2014-10-29 厦门翔磊贸易有限公司 Safety warning device of well lid
CN104120741B (en) * 2014-07-24 2015-12-23 厦门翔磊科技有限公司 A kind of safety alarm device of well lid
CN108457304A (en) * 2018-03-28 2018-08-28 合肥云智物联科技有限公司 Cable shaft based on Phase of Electric Power Projects and its monitoring system

Also Published As

Publication number Publication date
GB201103127D0 (en) 2011-04-06
GB201106538D0 (en) 2011-06-01

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)