CN108153388A - Computer cabinet anti-theft device - Google Patents
Computer cabinet anti-theft device Download PDFInfo
- Publication number
- CN108153388A CN108153388A CN201711213600.6A CN201711213600A CN108153388A CN 108153388 A CN108153388 A CN 108153388A CN 201711213600 A CN201711213600 A CN 201711213600A CN 108153388 A CN108153388 A CN 108153388A
- Authority
- CN
- China
- Prior art keywords
- microswitch
- babinet
- connect
- power supply
- coil
- 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.)
- Pending
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/18—Packaging or power distribution
- G06F1/181—Enclosures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/88—Detecting or preventing theft or loss
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
Abstract
The present invention provides a kind of computer cabinet anti-theft device, including：Microswitch, intermediate relay and alarm appliance, microswitch are arranged on the babinet of computer cabinet and are connect with power supply；Intermediate relay is connect with microswitch；Alarm appliance is connect with intermediate relay；Wherein, when babinet is in predeterminated position, microswitch is off；When babinet leaves predeterminated position, microswitch is closed to be powered by intermediate relay to alarm appliance, so that alarm appliance sends out alarm signal.So as to which when computer cabinet leaves the home position of placement staff can be reminded by sending out alarm signal, enhance the anti-theft of computer cabinet.Solve the problems, such as that computer cabinet protection effect of the prior art is bad.
Description
Technical field
The present invention relates to computer equipment field, in particular to a kind of computer cabinet anti-theft device.
Background technology
With the raising of society and scientific and technological level, computer is widely applied to every field, and people are to computer
It is required that higher and higher, the data particularly in the computer of secret units such as governability, science and technology research and development or army building are very
It is important.However the anti-theft of active computer cabinet is relatively low, can not meet the needs of users.
Existing computer is in order to meet the data safety protection requirements of user, mostly by strengthening the structural strength of cabinet
Either install additional theftproof lock come realize however for technology unlocking or violence damage there are protection effect it is bad the problem of.
Invention content
It is a primary object of the present invention to provide a kind of computer cabinet anti-theft device, to solve calculating of the prior art
The problem of machine cabinet protection effect is bad.
To achieve these goals, the present invention provides a kind of computer cabinet anti-theft device, including：Microswitch, if
It puts on the babinet of computer cabinet and is connect with power supply；Intermediate relay is connect with microswitch；Alarm appliance, with centre
Relay connects；Wherein, when babinet is in predeterminated position, microswitch is off；When babinet leaves predeterminated position
When, microswitch is closed to be powered by intermediate relay to alarm appliance, so that alarm appliance sends out alarm signal.
Further, microswitch is arranged on the bottom of babinet, when the bottom of babinet is placed on base station, microswitch
It is off；When babinet and base station are detached from, microswitch is closed.
Further, microswitch includes：First microswitch is arranged on the bottom rear end of babinet, when the bottom of babinet
When being placed on base station, the first microswitch is off；When the bottom rear end of babinet and base station are detached from, the first fine motion
Switch is closed.
Further, microswitch further includes：Second microswitch is arranged on the bottom front of babinet, when the bottom of babinet
When portion is placed on base station, the second microswitch is off；When the bottom front of babinet is detached from base station, second is micro-
Dynamic switch is closed.
Further, intermediate relay includes：Coil, one end of coil are connected by the anode of microswitch and power supply,
The other end of coil and the ground wire of power supply connect；Second normally opened contact, one end of the second normally opened contact and the anode of power supply connect；
Wherein, alarm appliance includes the first alarm appliance, and one end of the first alarm appliance is connect with the other end of the second normally opened contact, the
The other end of one alarm appliance and the ground wire of power supply connect；To coil power supply when microswitch is closed, so that the second normally opened contact
It is closed to power to the first alarm appliance, the first alarm appliance sends out the first alarm signal.
Further, intermediate relay further includes：First normally opened contact, the first normally opened contact is in parallel with microswitch, with
Coil obtain it is electric after be closed to continue to coil power supply.
Further, intermediate relay includes：Coil, one end of coil are connected by the anode of microswitch and power supply,
The other end of coil and the ground wire of power supply connect；Third normally opened contact, one end of third normally opened contact and the anode of power supply connect；
Wherein, alarm appliance includes the second alarm appliance, and one end of the second alarm appliance is connect with the other end of third normally opened contact, the
The other end of two alarm appliances and the ground wire of power supply connect；To coil power supply when microswitch is closed, so that third normally opened contact
It is closed to power to the second alarm appliance, the second alarm appliance sends out the second alarm signal.
Further, computer cabinet further includes：Photographic device is connect with intermediate relay, to be in default in babinet
The ambient enviroment of babinet is imaged when position and babinet leave predeterminated position.
Further, intermediate relay includes：Coil, one end of coil are connected by the anode of microswitch and power supply,
The other end of coil and the ground wire of power supply connect；First normally-closed contact, one end of the first normally-closed contact and the anode of power supply connect；
Wherein, photographic device includes the first camera, and one end of the first camera is connect with the other end of the first normally-closed contact, and first takes the photograph
As the other end of head and the ground wire of power supply connect；When microswitch disconnects, coil power down, the first normally-closed contact is in closed state
To power to the first camera, the first camera images the ambient enviroment of babinet.
Further, intermediate relay includes：Coil, one end of coil are connected by the anode of microswitch and power supply,
The other end of coil and the ground wire of power supply connect；4th normally opened contact, one end of the 4th normally opened contact and the anode of power supply connect；
Wherein, photographic device includes second camera, and one end of second camera is connect with the other end of the 4th normally opened contact, and second takes the photograph
As the other end of head and the ground wire of power supply connect；To coil power supply when microswitch is closed so that the 4th normally opened contact be closed with
It powers to second camera, second camera images the ambient enviroment of babinet.
Further, computer cabinet further includes：Master switch, is arranged on the predeterminated position of babinet, and microswitch passes through total
Switch is connect with power supply, and master switch is used to open or turns off the connection of microswitch and power supply.
Using the computer cabinet anti-theft device of technical solution of the present invention, including：Microswitch, intermediate relay and alarm
Device, microswitch are arranged on the babinet of computer cabinet and are connect with power supply；Intermediate relay is connect with microswitch；Report
Alert device is connect with intermediate relay；Wherein, when babinet is in predeterminated position, microswitch is off；Work as babinet
When leaving predeterminated position, microswitch is closed to be powered by intermediate relay to alarm appliance, so that alarm appliance sends out report
Alert signal.So as to which when computer cabinet leaves the home position of placement staff can be reminded by sending out alarm signal,
Enhance the anti-theft of computer cabinet.Solve the problems, such as that computer cabinet protection effect of the prior art is bad.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide further understanding of the present invention, and of the invention shows
Meaning property embodiment and its explanation do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is optional a kind of computer cabinet anti-theft device circuit diagram according to embodiments of the present invention；And
Fig. 2 is optional a kind of microswitch of computer cabinet anti-theft device according to embodiments of the present invention in computer machine
Arrangement schematic diagram on case.
Wherein, above-mentioned attached drawing is marked including the following drawings：
10th, microswitch；11st, the first microswitch；12nd, the second microswitch；20th, babinet；30th, power supply；40th, it is intermediate after
Electric appliance；41st, the first normally opened contact；42nd, the second normally opened contact；43rd, third normally opened contact；44th, the first normally-closed contact；45th, the 4th
Normally opened contact；46th, coil；50th, alarm appliance；51st, the first alarm appliance；52nd, the second alarm appliance；60th, photographic device；61、
First camera；62nd, second camera；70th, master switch.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Computer cabinet anti-theft device according to embodiments of the present invention, as shown in Figure 1, including：Microswitch 10, it is intermediate after
Electric appliance 40 and alarm appliance 50, microswitch 10 are arranged on the babinet 20 of computer cabinet and are connect with power supply 30；Centre after
Electric appliance 40 is connect with microswitch 10；Alarm appliance 50 is connect with intermediate relay 40；Wherein, when babinet 20 is in predeterminated position
When, microswitch 10 is off；When babinet 20 leaves predeterminated position, microswitch 10 is closed with by intermediate relay
Device 40 is powered to alarm appliance 50, so that alarm appliance 50 sends out alarm signal.
Using the computer cabinet anti-theft device of technical solution of the present invention, including：Microswitch 10,40 and of intermediate relay
Alarm appliance 50, microswitch 10 are arranged on the babinet of computer cabinet and are connect with power supply；Intermediate relay 40 and fine motion
10 connection of switch；Alarm appliance 50 is connect with intermediate relay 40；Wherein, when babinet is in predeterminated position, microswitch 10
It is off；When babinet leaves predeterminated position, microswitch 10 be closed with by intermediate relay 40 to alarm appliance
50 power supplies, so that alarm appliance 50 sends out alarm signal.So as to lead to when computer cabinet leaves the home position of placement
It crosses and sends out alarm signal prompting staff, enhance the anti-theft of computer cabinet.Solves computer machine of the prior art
The problem of case protection effect is bad.
When it is implemented, as shown in Fig. 2, microswitch 10 includes：First microswitch 11 and the second microswitch 12, the
One microswitch 11 is arranged on the bottom rear end of babinet 20, and the second microswitch 12 is arranged on the bottom front of babinet 20, and first
11 and second microswitch 12 of microswitch can in cabinet external extension, when the bottom of babinet 20 is placed on base station,
One microswitch 11 and the second microswitch 12 are pressed into cabinet so as to make the first microswitch 11 and the second microswitch 12
It is off；When the bottom rear end of babinet 20 and base station are detached from, the first microswitch 11 by stretched out in babinet 20 so as to
In closed state to power by intermediate relay 40 to alarm appliance 50, alarm appliance 50 is made to send out alarm signal.Work as case
When the bottom front of body 20 is detached from base station, the second microswitch 12 in babinet 20 by stretching out so as to pass through in closed state
Intermediate relay 40 is powered to alarm appliance 50, and alarm appliance 50 is made to send out alarm signal.In the present embodiment, babinet 20 it is front and rear
Any one end, which is lifted, shows that babinet 20 is stolen, and corresponding first microswitch, 11 and second microswitch 12 is into action
Make so that 50 warning reminding staff of alarm appliance, achievees the purpose that antitheft.
Intermediate relay 40 includes the second normally opened contact 42 and coil 46, and one end of coil 46 passes through microswitch 10 and electricity
The anode connection in source 30, the other end of coil 46 are connect with the ground wire of power supply 30；First microswitch 11 and the second microswitch
It can power after 12 any one closure to coil 46, so that corresponding contact acts.
One end of second normally opened contact 42 is connect with the anode of power supply 30；Wherein, alarm appliance 50 includes the first alarm
Part 51, one end of the first alarm appliance 51 are connect with the other end of the second normally opened contact 42, the other end of the first alarm appliance 51
It is connect with the ground wire of power supply 30；Coil 46 it is electric after the second normally opened contact 42 is driven to be closed so as to make power supply 30 to the first alarm
Part 51 is powered, and the first alarm appliance 51 sends out the first alarm signal.Optionally, the first alarm appliance 51 be warning light, warning light
It is electric after send out the light of flicker and alarm.
After babinet 20 is stolen, babinet 20 is re-applied on ground or means of transport, the first microswitch 11 and the second fine motion
Switch 12 can be disconnected warning circuit or 12 quilt of the first microswitch 11 and the second microswitch in press-in babinet 20 again
Artificial be pressed into babinet 20 can also disconnect warning circuit, so as to stop alarm so that the anti-theft of babinet 20 declines.
For this purpose, further, intermediate relay 40 further includes the first normally opened contact 41, by setting the first normally opened contact
41, and make the first normally opened contact 41 in parallel with microswitch 10, when coil 46 it is electric after the first normally opened contact 41 is driven to be closed, i.e.,
The first microswitch 11 and the second microswitch 12 are backed off, can be continued to line by the first normally opened contact 41 of closure
46 power supply of circle, and then alarm appliance 50 is made to continue uninterruptedly to alarm, reach best anti-theft effect.
In order to further improve the anti-theft alarm result of babinet 20, intermediate relay 40 further includes third normally opened contact 43,
Alarm appliance 50 includes the second alarm appliance 52, and optionally, the second alarm appliance 52 is loudspeaker horn, third normally opened contact 43
One end is connect with the anode of power supply 30, and one end of the second alarm appliance 52 is connect with the other end of third normally opened contact 43, and second
The other end of alarm appliance 52 is connect with the ground wire of power supply 30；Any one of first microswitch 11 and the second microswitch 12 are closed
It powers during conjunction to coil 46, third normally opened contact 43 is made to be closed to power to the second alarm appliance 52, the second alarm appliance 52
It generates the alarm signal of form of sound and reminds staff to remind, achieve the purpose that antitheft.
By the way that the second alarm appliance 52 is set to carry out the light that the alarm of form of sound is generated with reference to the first alarm appliance 51
The alarm of form can be easier that staff's babinet 20 is reminded to occur to be stolen, to improve the anti-theft of babinet 20.
In order to when computer cabinet occurs stolen, be able to record the figure and features feature of suspect, further, computer machine
Case further includes photographic device 60, and photographic device 60 is connect with intermediate relay 40, with when babinet 20 is in predeterminated position and
The ambient enviroment of babinet 20 is imaged when babinet 20 leaves predeterminated position.
Specifically, intermediate relay 40 further includes the first normally-closed contact 44, and photographic device 60 includes the first camera 61.The
One end of one normally-closed contact 44 is connect with the anode of power supply 30, and one end of the first camera 61 is another with the first normally-closed contact 44
End connection, the other end of the first camera 61 are connect with the ground wire of power supply 30；When microswitch 10 disconnects, i.e. computer cabinet position
In on home position, the bottom of babinet 20 is not detached from placing the base station of computer cabinet, and coil 46 is in power down shape at this time
State, the first normally-closed contact 44 are in closed state to power to the first camera 61, the first camera 61 to babinet 20 around
Environment is imaged.So as to the figure and features feature of suspect and be stolen at the first time when suspect steals computer cabinet
Cheng Jinhang is recorded.
When computer cabinet is moved away from the base station for placing babinet 20 by suspect, coil 46 must be electric, at this point, the first camera
61 power-off stop recording the figure and features feature and theft process of suspect.
During theft in order to lasting record suspect, intermediate relay 40 further includes the 4th normally opened contact 45,
Photographic device 60 further includes second camera 62, and one end of the 4th normally opened contact 45 is connect with the anode of power supply 30；Second camera shooting
First 62 one end is connect with the other end of the 4th normally opened contact 45, and the other end of second camera 62 connects with the ground wire of power supply 30
It connects；When computer cabinet is not easily removed from home position, microswitch 10 disconnects, and 46 dead electricity of coil, the 4th normally opened contact 45 is in
Off-state, second camera 62 do not work.When computer cabinet is easily removed from home position, babinet 20 is detached from from base, this
When, microswitch 10 is closed to power to coil 46, coil 46 it is electric after be closed the 4th normally opened contact 45 so as to make second to take the photograph
It starts to work as first 62, so as to continue the figure and features feature to suspect by second camera 62 after the first camera 61 is disconnected
And theft process is recorded.
First camera 61 and second camera 62 are connect with the monitoring host computer of distal end, and the first camera 61 and second is taken the photograph
The video pictures of shooting can be sent to monitoring host computer as first 62, consequently facilitating transferring monitor video to lock suspect.
First camera 61 is arranged on the daylight of the babinet 20 of computer cabinet, and second camera 62 is arranged on computer machine
The shelter of the babinet 20 of case attracts burglar's attention, even if the first camera using the first camera 61 for being positioned over daylight
61 are destroyed by suspect, and second camera 62 can still work normally, and the figure and features feature and theft process to suspect are remembered
Record.
Accidentally moving computer cabinet in normal use in order to prevent causes alarm appliance 50 to be alarmed, further, meter
Calculation machine cabinet further includes：Master switch 70, master switch 70 are arranged on the predeterminated position of babinet 20, and microswitch 10 passes through master switch 70
It is connect with power supply 30, master switch 70 is used to open or turns off the connection of microswitch 10 and power supply 30.It is not needed in normal use
Master switch 70 can be closed during alarm, so as to prevent false alarm.When staff leaves, master switch 70 is opened, is started
Alarming protection function.Master switch 70 is arranged on the shelter of babinet 20, when stealing computer cabinet so as to suspect, passes through closing
Master switch 70 and alarm appliance 50 is closed.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (11)
1. a kind of computer cabinet anti-theft device, which is characterized in that including：
Microswitch (10) is arranged on the babinet (20) of the computer cabinet and is connect with power supply (30)；
Intermediate relay (40) is connect with the microswitch (10)；
Alarm appliance (50) is connect with the intermediate relay (40)；
Wherein, when the babinet (20) is in predeterminated position, the microswitch (10) is off；When the babinet
(20) when leaving the predeterminated position, the microswitch (10) be closed with by the intermediate relay (40) to the alarm
Device (50) is powered, so that the alarm appliance (50) sends out alarm signal.
2. computer cabinet anti-theft device according to claim 1, which is characterized in that the microswitch (10) is arranged on
The bottom of the babinet (20), when the bottom of the babinet (20) is placed on base station, the microswitch (10) is in disconnected
Open state；When the babinet (20) and the base station are detached from, the microswitch (10) is closed.
3. computer cabinet anti-theft device according to claim 2, which is characterized in that the microswitch (10) includes：
First microswitch (11) is arranged on the bottom rear end of the babinet (20), when the bottom of the babinet (20) is placed on
When on base station, first microswitch (11) is off；When the bottom rear end of the babinet (20) and the base station
During disengaging, first microswitch (11) is closed.
4. computer cabinet anti-theft device according to claim 3, which is characterized in that the microswitch (10) is also wrapped
It includes：
Second microswitch (12) is arranged on the bottom front of the babinet (20), when the bottom of the babinet (20) is placed on
When on base station, second microswitch (12) is off；Bottom front and the base station when the babinet (20)
During disengaging, second microswitch (12) is closed.
5. computer cabinet anti-theft device according to claim 1, which is characterized in that intermediate relay (40) packet
It includes：
Coil (46), one end of the coil (46) are connect by the microswitch (10) with the anode of the power supply (30),
The other end of the coil (46) is connect with the ground wire of the power supply (30)；
Second normally opened contact (42), one end of second normally opened contact (42) are connect with the anode of the power supply (30)；
Wherein, the alarm appliance (50) includes the first alarm appliance (51), one end of first alarm appliance (51) and institute
State the other end connection of the second normally opened contact (42), the other end of first alarm appliance (51) and the ground of the power supply (30)
Line connects；It powers when the microswitch (10) is closed to the coil (46), so that second normally opened contact (42) is closed
To power to first alarm appliance (51), first alarm appliance (51) sends out the first alarm signal.
6. computer cabinet anti-theft device according to claim 5, which is characterized in that the intermediate relay (40) is also wrapped
It includes：
First normally opened contact (41), first normally opened contact (41) is in parallel with the microswitch (10), in the coil
(46) it is electric after be closed with continue to the coil (46) power.
7. computer cabinet anti-theft device according to claim 1, which is characterized in that intermediate relay (40) packet
It includes：
Coil (46), one end of the coil (46) are connect by the microswitch (10) with the anode of the power supply (30),
The other end of the coil (46) is connect with the ground wire of the power supply (30)；
Third normally opened contact (43), one end of the third normally opened contact (43) are connect with the anode of the power supply (30)；
Wherein, the alarm appliance (50) includes the second alarm appliance (52), one end of second alarm appliance (52) and institute
State the other end connection of third normally opened contact (43), the other end of second alarm appliance (52) and the ground of the power supply (30)
Line connects；It powers when the microswitch (10) is closed to the coil (46), so that the third normally opened contact (43) is closed
To power to second alarm appliance (52), second alarm appliance (52) sends out the second alarm signal.
8. computer cabinet anti-theft device according to claim 1, which is characterized in that the computer cabinet further includes：
Photographic device (60) is connect with the intermediate relay (40), with when the babinet (20) is in predeterminated position and
The babinet (20) images the ambient enviroment of the babinet (20) when leaving the predeterminated position.
9. computer cabinet anti-theft device according to claim 8, which is characterized in that intermediate relay (40) packet
It includes：
Coil (46), one end of the coil (46) are connect by the microswitch (10) with the anode of the power supply (30),
The other end of the coil (46) is connect with the ground wire of the power supply (30)；
First normally-closed contact (44), one end of first normally-closed contact (44) are connect with the anode of the power supply (30)；
Wherein, the photographic device (60) includes the first camera (61), one end of first camera (61) and described the
The other end connection of one normally-closed contact (44), the other end of first camera (61) connect with the ground wire of the power supply (30)
It connects；When the microswitch (10) disconnects, coil (46) power down, first normally-closed contact (44) in closed state with
It powers to first camera (61), first camera (61) images the ambient enviroment of the babinet (20).
10. computer cabinet anti-theft device according to claim 8, which is characterized in that intermediate relay (40) packet
It includes：
Coil (46), one end of the coil (46) are connect by the microswitch (10) with the anode of the power supply (30),
The other end of the coil (46) is connect with the ground wire of the power supply (30)；
4th normally opened contact (45), one end of the 4th normally opened contact (45) are connect with the anode of the power supply (30)；
Wherein, the photographic device (60) includes second camera (62), one end of the second camera (62) and described the
The other end connection of four normally opened contacts (45), the other end of the second camera (62) connect with the ground wire of the power supply (30)
It connects；Power when the microswitch (10) is closed to the coil (46) so that the 4th normally opened contact (45) be closed with to
Second camera (62) power supply, the second camera (62) image the ambient enviroment of the babinet (20).
11. computer cabinet anti-theft device according to claim 1, which is characterized in that the computer cabinet further includes：
Master switch (70), is arranged on the predeterminated position of the babinet (20), and the microswitch (10) passes through the master switch
(70) it is connect with the power supply (30), the master switch (70) is used to open or turns off the microswitch (10) and the power supply
(30) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213600.6A CN108153388A (en) | 2017-11-27 | 2017-11-27 | Computer cabinet anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711213600.6A CN108153388A (en) | 2017-11-27 | 2017-11-27 | Computer cabinet anti-theft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108153388A true CN108153388A (en) | 2018-06-12 |
Family
ID=62469196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711213600.6A Pending CN108153388A (en) | 2017-11-27 | 2017-11-27 | Computer cabinet anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108153388A (en) |
Citations (9)
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|---|---|---|---|---|
| CN2044138U (en) * | 1988-12-24 | 1989-09-13 | 李剑锋 | Anti-theft warner of suitcase |
| CN1040107A (en) * | 1989-07-29 | 1990-02-28 | 张启亮 | Anti-theft remote-control alarm of tv |
| US5504377A (en) * | 1994-02-03 | 1996-04-02 | Nowell; Derrell D. | Automobile electric door lock safety system and method for preventing the inadvertent locking of keys in an automobile |
| CN2554294Y (en) * | 2002-07-26 | 2003-06-04 | 吴向阳 | Electronic anti-theft lock for bicycle and motorcycle |
| CN1505231A (en) * | 2002-12-03 | 2004-06-16 | 华为技术有限公司 | A protective circuit |
| CN2876920Y (en) * | 2006-03-13 | 2007-03-07 | 王文博 | Antitheft alarm for computer casing |
| CN201166894Y (en) * | 2008-01-29 | 2008-12-17 | 白明进 | Anti-theft alarm device |
| CN203134044U (en) * | 2013-03-14 | 2013-08-14 | 上海电机学院 | Antitheft system |
| CN204965643U (en) * | 2015-09-18 | 2016-01-13 | 连云港职业技术学院 | A warning circuit and computer case for theftproof of computer incasement part |
-
2017
- 2017-11-27 CN CN201711213600.6A patent/CN108153388A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2044138U (en) * | 1988-12-24 | 1989-09-13 | 李剑锋 | Anti-theft warner of suitcase |
| CN1040107A (en) * | 1989-07-29 | 1990-02-28 | 张启亮 | Anti-theft remote-control alarm of tv |
| US5504377A (en) * | 1994-02-03 | 1996-04-02 | Nowell; Derrell D. | Automobile electric door lock safety system and method for preventing the inadvertent locking of keys in an automobile |
| CN2554294Y (en) * | 2002-07-26 | 2003-06-04 | 吴向阳 | Electronic anti-theft lock for bicycle and motorcycle |
| CN1505231A (en) * | 2002-12-03 | 2004-06-16 | 华为技术有限公司 | A protective circuit |
| CN2876920Y (en) * | 2006-03-13 | 2007-03-07 | 王文博 | Antitheft alarm for computer casing |
| CN201166894Y (en) * | 2008-01-29 | 2008-12-17 | 白明进 | Anti-theft alarm device |
| CN203134044U (en) * | 2013-03-14 | 2013-08-14 | 上海电机学院 | Antitheft system |
| CN204965643U (en) * | 2015-09-18 | 2016-01-13 | 连云港职业技术学院 | A warning circuit and computer case for theftproof of computer incasement part |
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Application publication date: 20180612 |
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| RJ01 | Rejection of invention patent application after publication |