CN109951981A - A kind of control cabinet with anti-theft function - Google Patents
A kind of control cabinet with anti-theft function Download PDFInfo
- Publication number
- CN109951981A CN109951981A CN201910325297.1A CN201910325297A CN109951981A CN 109951981 A CN109951981 A CN 109951981A CN 201910325297 A CN201910325297 A CN 201910325297A CN 109951981 A CN109951981 A CN 109951981A
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- fixedly installed
- compression bar
- cabinet body
- cabinet
- top plate
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Abstract
The invention discloses a kind of control cabinets with anti-theft function, including cabinet body, top plate is fixedly installed at the top of the cabinet body, the cover top surface is fixedly installed with spring, run through in the spring and compression bar is installed, the compression bar extends to interior of the cabinet through top plate, the compression bar top plate is fixedly installed with pressing sleeve, the pressing sleeve bottom symmetrical is provided with two groups of claws, the cover top surface, which is located at outside spring, is fixedly mounted restraining position ring block, the compression bar extends to interior of the cabinet one end and is connected with connecting rod, the top plate lower surface is located at compression bar side and is fixedly installed with column, the connecting rod is flexibly connected far from compression bar one end with column bottom one end, side is provided with two groups of mounting grooves outside the cabinet body, shock sensor is slidably fitted in the mounting groove, mechanical safety device is set, even if door lock is destroyed, it can not still open Cabinet body is provided with the electric anti-thief device of warning function, can start anti-theft function in time.
Description
Technical field
The invention belongs to control cabinet technical fields, and in particular to a kind of control cabinet with anti-theft function.
Background technique
Control cabinet is that switchgear, measuring instrumentss, protection electric appliance and ancillary equipment are assembled in envelope by electrical wiring requirement
Close or semiclosed metal safe in or screen width on, arrangement should meet the requirement of electric system normal operation, and easy access do not jeopardize
The control cabinet (case) of the safety of the person and surrounding devices.Including (power distribution cabinet) (distribution box) (electric control cabinet) etc., operate normally
When can by manual or automatic switch connect or disjunction circuit.When failure or irregular operating by protection electric appliance cutting circuit or
Alarm.Running various parameters can be shown by means of measuring instrumentss, certain electric parameters can be also adjusted, to the normal work of deviation
Signal is prompted or issued as state.It is usually used in each sending out, matching, in electric substation.General low-voltage power distributing cabinet secondary line, pressure-wire
Road minimum matches 1.5 squares of cross-sectional area, and 2.5 squares of current loop minimum sectional area, current loop refers to, current transformer, electric current
Table, the current signal line of power-factor meter, the current signal line, etc. of mutual inductance type kilowatt-hour meter, the size of current flowed through are 5 peaces
Training.In addition power line is with regard to yellowish green red, zero curve blue or light blue (some are grey, because it is European mark that international standard, which is also distinguished,
Quasi- or Unite States Standard).The black line that at least 1.5 square millimeters of circuit main line, the red line that 1.0 squares of control line alternating voltage, directly
Galvanic electricity presses 1.0 squares of blue line.Signal line color does not require.
Certain equipment in control cabinet compare expense weight, are easy the theft by criminal.Existing control cabinet is generally adopted
It is antitheft with mechanical lock, but mechanical lock is easy to be led out, and can not play good anti-theft effect, and can not find in time illegal
The larceny of molecule.
For this purpose, it is proposed that a kind of control cabinet with anti-theft function solves problems of the prior art, in cabinet
Setting mechanical safety device can not still open cabinet body even if door lock is destroyed at the top of body；By being provided in cabinet body side
The electric anti-thief device of warning function can start anti-theft function if thief destroys control cabinet body energetically in time.
Summary of the invention
The purpose of the present invention is to provide a kind of control cabinets with anti-theft function, to solve to propose in above-mentioned background technique
In the prior art, mechanical lock is more easily damaged, and can find thief in time, prevents the problem that control cabinet is stolen.
To achieve the above object, present invention employs following technical solutions:
A kind of control cabinet with anti-theft function, including cabinet body, the cabinet body top are fixedly installed with top plate, the top plate
Upper surface is fixedly installed with spring, runs through in the spring and is equipped with compression bar, the compression bar extends in cabinet body through top plate
Portion, the compression bar top plate are fixedly installed with pressing sleeve, and the pressing sleeve bottom symmetrical is provided with two groups of claws, the cover top surface position
Restraining position ring block is fixedly mounted outside spring, annular groove is offered in the stop collar, is symmetrically offered at the top of the stop collar
Two groups of notches, the compression bar extend to interior of the cabinet one end and are connected with connecting rod, and the top plate lower surface is located at compression bar side
It is fixedly installed with column, the connecting rod is flexibly connected far from compression bar one end with column bottom one end, the fixed peace in described connecting rod one end
Equipped with shank mechanism, the cabinet body is hinged with cabinet door by hinge close to shank side, and the cabinet door is located at interior of the cabinet side
Top is fixedly connected with groove, and side is provided with two groups of mounting grooves outside the cabinet body, is slidably fitted with shake in the mounting groove
Detector is moved, is fixedly installed with outside protective covers outside the shock sensor.
Preferably, the top plate is located at compression bar and offers first through hole through position, and it is logical that the spring inside diameter is greater than first
The diameter in hole, and spring outer diameter is less than the internal diameter of stop collar.
Preferably, the pressing sleeve bottom offers counterbore, and the spring is fixedly installed in counterbore base
Preferably, claw described in two groups includes connecting plate and the snap-gauge for being fixedly mounted on connecting plate bottom, the connecting plate
It is of an L-shaped structure setting, the snap-gauge and annular groove clearance fit with snap-gauge, the width of the connecting plate is less than the width of notch.
Preferably, described compression bar one end is fixedly installed in counterbore base, and the compression bar other end offers card slot, the card slot
Two sides offer the second through-hole, the third through-hole opened up by pin shaft through connecting rod one end between the second through-hole described in two groups
It is flexibly connected.
Preferably, the column also offers card slot far from top plate one end, and card slot two sides also offer the second through-hole, institute
It states connecting rod one end and is movably connected on column bottom also by pin shaft.
Preferably, the shank mechanism includes steel plate and the pulling plate for being fixedly installed in steel plate side, the Interal fixation peace
Cooperate loaded on connecting rod close to column one end, the pulling plate and trench gap.
Preferably, installation slot cross-section described in two groups is two groups of U-shaped groove structures, and the shock sensor is slided by mounting blocks
It is installed in mounting groove, the mounting blocks include fixing sleeve and the fixed block for being fixedly installed in fixing sleeve two sides, the fixed block
With mounting groove clearance fit.
Preferably, the cabinet body both sides external is fixedly installed with two groups of radiator fans, and the cabinet door surface is fixedly mounted
There is door lock.
Technical effect and advantage of the invention: a kind of control cabinet with anti-theft function proposed by the present invention, with existing skill
Art is compared, and is had the advantage that
1, by being provided with the compression bar of spring at the top of cabinet body, shank mechanism or more is driven in compression bar bottom installing connecting rods
Groove cooperation in activity, with cabinet door, increases by one group of mechanical locking device in cabinet body, reinforces to cabinet body, even if door lock
It is destroyed, can not still open cabinet body；
2, the vibration detector that installation has warning function in cabinet body side can if thief destroys control cabinet body energetically
Starting anti-theft function in time, and protection housing, the person's of avoiding theft discovery are fixedly mounted outside vibration detector.
Detailed description of the invention
Fig. 1 is the unshielded outer cover schematic perspective view in main view visual angle of the invention；
Fig. 2 is side view broken section structural schematic diagram of the invention；
Fig. 3 is shank mechanism sectional perspective structural schematic diagram of the invention；
Fig. 4 is main view view stereo structural schematic diagram of the invention；
Fig. 5 is vertical view schematic cross-sectional view of the invention.
In figure: 1 cabinet body, 2 top plates, 3 springs, 4 compression bars, 5 pressing sleeves, 6 claws, 601 connecting plates, 602 snap-gauges, 7 stop collars, 8
Annular groove, 9 notches, 10 connecting rods, 11 columns, 12 shank mechanisms, 1201 steel plates, 1202 pulling plates, 13 cabinet doors, 14 grooves, 15 installations
Slot, 16 shock sensors, 17 first through hole, 18 counterbores, 19 card slots, 20 second through-holes, 21 pin shafts, 22 third through-holes, 23 installations
Block, 2301 fixing sleeves, 2302 fixed blocks, 24 radiator fans, 25 door locks, 26 outside protective covers.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides a kind of control cabinet with anti-theft function as shown in Figs. 1-5, including cabinet body 1, the cabinet bodies 1
Top is fixedly installed with top plate 2, and setting top plate 2 is easily installed fixed spring 3, and 2 upper surface of top plate is fixedly installed with spring
3, spring 3 is set, restores the position of off working state, and stable structure after reset convenient for compression bar 4；Through peace in the spring 3
Equipped with compression bar 4, compression bar 4 is set, and convenient for being fixedly connected with connecting rod 10, controls connecting rod 10 is up and down；The compression bar 4 is through top plate
2 extend to inside cabinet body 1, and setting compression bar 4 extends to inside cabinet body 1 through top plate 2, its shadow is made to ensconce work in cabinet body 1；Institute
It states 4 top plate of compression bar and is fixedly installed with pressing sleeve 5, pressing sleeve 5 is set, convenient for fixed spring 3 and be convenient for stationary jaw 6；The pressing sleeve 5
Bottom symmetrical is provided with two groups of claws 6, and two groups of claws 6 of setting are used cooperatively it with notch 9, when compression bar is in running order
Fix its position；2 upper surface of top plate is located at fixed installation restraining position ring block 7 outside spring 3, stop collar 7 is arranged, and limiting
Annular groove 8 is set in ring 7, is entered in annular groove 8 convenient for claw 6 by pressing, rotates to the position for avoiding notch 9, makes compression bar 4
Position fix；Annular groove 8 is offered in the stop collar 7,7 top of stop collar symmetrically offers two groups of notches 9, is arranged
Notch 9 enters annular groove 8 convenient for claw 6；The compression bar 4 extends to 1 inside one end of cabinet body and is connected with connecting rod 10, setting
Connecting rod 10 is convenient for control shank mechanism 12；2 lower surface of top plate is located at 4 side of compression bar and is fixedly installed with column 11, and setting is vertical
Column 11 provides fulcrum for the activity of connecting rod 10；The connecting rod 10 is flexibly connected far from 4 one end of compression bar with 11 bottom end of column, institute
It states 10 one end of connecting rod and is fixedly installed with shank mechanism 12, shank mechanism 12 is set, increases it by mechanical lock spiral-lock inside cabinet body 1
It sets, even if door lock is destroyed, can not still open cabinet body；The cabinet body 1 is hinged with cabinet door by hinge close to 12 side of shank
13, cabinet door 13 is set, the control electronics in cabinet body 1 are protected；The cabinet door 13 is located at fixed at the top of 1 interior side of cabinet body connect
It is connected to groove 14, setting groove 14 is used cooperatively with shank mechanism 12, in 1 internal locking cabinet door 13 of cabinet body；1 outside one of cabinet body
Side is provided with two groups of mounting grooves 15, and mounting groove 15 is arranged, is easily installed shock sensor 16；It is slidably installed in the mounting groove 15
There is shock sensor 16, setting shock sensor 16 is TR-971ATM vibration detector, strong to the frequency of vibration signal, amplitude of vibration
The weak and duration carries out accurate vibration signal analysis and processing, if thief destroys control cabinet body 1 or door lock 25 energetically,
Anti-theft function can be started in time；It is fixedly installed with outside protective covers 26 outside the shock sensor 16, outside protective covers 26 are set, prevents
Only thief has found detector, removes to it.
Preferably, the top plate 2, which is located at compression bar 4, offers first through hole 17 through position, 3 internal diameter of spring is greater than the
The diameter of one through-hole 17, and 3 outer diameter of spring is less than the internal diameter of stop collar 7.
By using above-mentioned technical proposal, first through hole 17 is set, convenient for compression bar 4 through using, 3 internal diameter of spring is set
Greater than the diameter of first through hole 17, and 3 outer diameter of spring is less than the internal diameter of stop collar 7, avoids spring 3 and first through hole 17 or limit
Position ring 7 interferes.
Preferably, 5 bottom of pressing sleeve offers counterbore 18, the spring 3 is fixedly installed in 18 bottom of counterbore.
By using above-mentioned technical proposal, counterbore 18 is set, the installation convenient for spring 3 is fixed.
Preferably, claw 6 described in two groups includes connecting plate 601 and the snap-gauge 602 for being fixedly mounted on 601 bottom of connecting plate,
The connecting plate 601 and snap-gauge 602 are of an L-shaped structure setting, the snap-gauge 602 and 8 clearance fit of annular groove, the connecting plate
601 width is less than the width of notch 9.
By using above-mentioned technical proposal, claw 6 is set and is of an L-shaped structure, and snap-gauge 602 and 8 clearance fit of annular groove, just
Annular groove 8 is entered by notch 9 in claw 6, is convenient for 4 switch operating position of compression bar.
Preferably, described 4 one end of compression bar is fixedly installed in 18 bottom of counterbore, and 4 other end of compression bar offers card slot 19, institute
It states 19 two sides of card slot and offers the second through-hole 20, pass through pin shaft 21 between the second through-hole 20 described in two groups through connecting rod 10 1
The third through-hole 22 opened up is held to be flexibly connected.
By using above-mentioned technical proposal, card slot 19 is set and cooperates the second through-hole 20 and pin shaft 21, convenient for the work of connecting rod 10
Dynamic installation.
Preferably, the column 11 also offers card slot 19 far from 2 one end of top plate, and 19 two sides of card slot also offer second
Through-hole 20, described 10 one end of connecting rod are movably connected on 11 bottom of column also by pin shaft 21.
By using above-mentioned technical proposal, column 11 is set and cooperates the second through-hole 20 and pin shaft 21, convenient for being mentioned for connecting rod 10
Moving fulcrum.
Preferably, the shank mechanism 12 includes steel plate 1201 and the pulling plate 1202 for being fixedly installed in 1201 side of steel plate,
The steel plate 1201 is fixedly installed in connecting rod 10 close to 11 one end of column, the pulling plate 1202 and 14 clearance fit of groove.
By using above-mentioned technical proposal, pulling plate 1202 and 14 clearance fit of groove are set, internal locking mechanism structure is made
Stablize, convenient for operation.
Preferably, 15 section of mounting groove described in two groups is two groups of U-shaped groove structures, the shock sensor 16 passes through mounting blocks
23 are slidably mounted in mounting groove 15, and the mounting blocks 23 include fixing sleeve 2301 and are fixedly installed in 2301 two sides of fixing sleeve
Fixed block 2302, the fixed block 2302 and 15 clearance fit of mounting groove.
By using above-mentioned technical proposal, fixing sleeve 2301 and fixed block 2302 are set, convenient for fixing shock sensor 16,
Fixed block 2302 and 15 clearance fit of mounting groove are set, 16 install convenient of shock sensor is made.
Preferably, 1 both sides external of cabinet body is fixedly installed with two groups of radiator fans 24,13 surface of cabinet door is fixed
Door lock 25 is installed.
By using above-mentioned technical proposal, radiator fan 24 is set, radiating treatment is carried out to cabinet body 1, door lock 25 is set to cabinet
Body 1 carries out antitheft.
Structural principle: after cabinet door 13 is closed, pressing down on pressing sleeve 5, and spring 3 compresses, and enters claw 6 across notch 9
Annular groove 8 rotates pressing sleeve 5, so that it will not be drawn out, by pressing, moves downward compression bar 4 and drives 10 one end of connecting rod
Shank mechanism 12, is lifted up, and pulling plate 1202 is made to be caught in groove 14, can lock cabinet door 13, even if door lock 25 is destroyed, still
It is old to open cabinet body 1；
The mounting blocks with shock sensor 16 are slidably fitted in the mounting groove 15 that 1 outside side of cabinet body is fixedly mounted
23, it can be opened in time convenient for the installation and removal of shock sensor 16 if thief destroys cabinet body 1 energetically or taps door lock 25
Furthermore outside protective covers 26, the person's of avoiding theft discovery, to vibration is fixedly mounted in 16 outside side of vibration detector in dynamic anti-theft function
16 removal of detector or destruction.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (9)
1. a kind of control cabinet with anti-theft function, including cabinet body (1), it is characterised in that: be fixedly mounted at the top of the cabinet body (1)
Having top plate (2), top plate (2) upper surface is fixedly installed with spring (3), and run through in the spring (3) and compression bar (4) are installed,
The compression bar (4) extends to cabinet body (1) inside through top plate (2), and compression bar (4) top plate is fixedly installed with pressing sleeve (5), institute
It states pressing sleeve (5) bottom symmetrical and is provided with two groups of claws (6), top plate (2) upper surface, which is located at outside spring (3), to be fixedly installed with
Stop collar (7), the stop collar (7) is interior to be offered annular groove (8), and two groups of notches are symmetrically offered at the top of the stop collar (7)
(9), the compression bar (4) extends to the internal one end of cabinet body (1) and is connected with connecting rod (10), and top plate (2) lower surface is located at
Compression bar (4) side is fixedly installed with column (11), and the connecting rod (10) is living far from compression bar (4) one end and column (11) bottom end
Dynamic connection, described connecting rod (10) one end are fixedly installed with shank mechanism (12), and the cabinet body (1) passes through close to shank (12) side
Hinge is hinged with cabinet door (13), and the cabinet door (13), which is located at the top of cabinet body (1) interior side, to be fixedly connected with groove (14), described
The external side of cabinet body (1) is provided with two groups of mounting grooves (15), is slidably fitted with shock sensor (16) in the mounting groove (15),
Outside protective covers (26) are fixedly installed with outside the shock sensor (16).
2. a kind of control cabinet with anti-theft function according to claim 1, it is characterised in that: the top plate (2) is located at
Compression bar (4) offers first through hole (17) through position, and spring (3) internal diameter is greater than the diameter of first through hole (17), and bullet
Spring (3) outer diameter is less than the internal diameter of stop collar (7).
3. a kind of control cabinet with anti-theft function according to claim 1, it is characterised in that: pressing sleeve (5) bottom
It offers counterbore (18), the spring (3) is fixedly installed in counterbore (18) bottom.
4. a kind of control cabinet with anti-theft function according to claim 1, it is characterised in that: claw described in two groups (6)
Including connecting plate (601) and it is fixedly mounted on the snap-gauge (602) of connecting plate (601) bottom, the connecting plate (601) and snap-gauge
(602) it is of an L-shaped structure setting, the snap-gauge (602) and annular groove (8) clearance fit, the width of the connecting plate (601) is less than
The width of notch (9).
5. a kind of control cabinet with anti-theft function according to claim 1, it is characterised in that: described compression bar (4) one end
It is fixedly installed in counterbore (18) bottom, and compression bar (4) other end offers card slot (19), card slot (19) two sides offer
Second through-hole (20), the third opened up by pin shaft (21) through connecting rod (10) one end between the second through-hole (20) described in two groups
Through-hole (22) is flexibly connected.
6. a kind of control cabinet with anti-theft function according to claim 5, it is characterised in that: the column (11) is separate
Top plate (2) one end also offers card slot (19), and card slot (19) two sides also offer the second through-hole (20), the connecting rod (10) one
End is movably connected on column (11) bottom also by pin shaft (21).
7. a kind of control cabinet with anti-theft function according to claim 1, it is characterised in that: the shank mechanism (12)
Including steel plate (1201) and it is fixedly installed in the pulling plate (1202) of steel plate (1201) side, the steel plate (1201) is fixedly installed in
Connecting rod (10) is close to column (11) one end, the pulling plate (1202) and groove (14) clearance fit.
8. a kind of control cabinet with anti-theft function according to claim 1, it is characterised in that: mounting groove described in two groups
(15) section is two groups of U-shaped groove structures, and the shock sensor (16) is slidably mounted on mounting groove (15) by mounting blocks (23)
Interior, the mounting blocks (23) include fixing sleeve (2301) and the fixed block (2302) for being fixedly installed in fixing sleeve (2301) two sides,
The fixed block (2302) and mounting groove (15) clearance fit.
9. a kind of control cabinet with anti-theft function according to claim 1, it is characterised in that: the cabinet body (1) is external
Two sides are fixedly installed with two groups of radiator fans (24), and cabinet door (13) surface is fixedly installed with door lock (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325297.1A CN109951981B (en) | 2019-04-22 | 2019-04-22 | Switch board with theftproof function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910325297.1A CN109951981B (en) | 2019-04-22 | 2019-04-22 | Switch board with theftproof function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109951981A true CN109951981A (en) | 2019-06-28 |
| CN109951981B CN109951981B (en) | 2021-07-13 |
Family
ID=67015801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910325297.1A Active CN109951981B (en) | 2019-04-22 | 2019-04-22 | Switch board with theftproof function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109951981B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910595A (en) * | 2019-11-28 | 2020-03-24 | 上海度普新能源科技有限公司 | Movable charging pile geographical position monitoring method and system |
| CN112867306A (en) * | 2019-11-28 | 2021-05-28 | 中车永济电机有限公司 | Converter cabinet |
| CN113692180A (en) * | 2021-07-30 | 2021-11-23 | 东莞职业技术学院 | Network information safety management device |
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| CN208636833U (en) * | 2018-03-07 | 2019-03-22 | 南京奥工信息科技有限公司 | A kind of machine box for server locking device |
| CN208351476U (en) * | 2018-05-08 | 2019-01-08 | 河南工业职业技术学院 | A kind of anti-theft computer case |
| CN208156060U (en) * | 2018-05-14 | 2018-11-27 | 邱国玲 | A kind of anti-remote control power theft monitoring device |
| CN108695704A (en) * | 2018-06-07 | 2018-10-23 | 柳州易旺科技有限公司 | A kind of power cabinet based on intelligent monitoring |
| CN108798295A (en) * | 2018-06-08 | 2018-11-13 | 贵州天下无贼科技有限公司 | A kind of anti-theft device of one cabinet |
| CN108831674A (en) * | 2018-06-12 | 2018-11-16 | 徐州卓纳科技服务有限公司 | It is a kind of to be fixed with door body and the transformer case of self-locking anti-theft function |
| CN208752751U (en) * | 2018-09-21 | 2019-04-16 | 上海感拓智能科技有限公司 | A kind of fiber-optic vibration perimeter security installation |
| CN109286858A (en) * | 2018-10-16 | 2019-01-29 | 合肥鸿坤通信工程有限公司 | A kind of communication equipment anti-theft device |
| CN109659823A (en) * | 2018-12-29 | 2019-04-19 | 国家电网有限公司 | Antitheft power distribution cabinet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110910595A (en) * | 2019-11-28 | 2020-03-24 | 上海度普新能源科技有限公司 | Movable charging pile geographical position monitoring method and system |
| CN112867306A (en) * | 2019-11-28 | 2021-05-28 | 中车永济电机有限公司 | Converter cabinet |
| CN110910595B (en) * | 2019-11-28 | 2022-04-29 | 上海度普新能源科技有限公司 | Movable charging pile geographical position monitoring method and system |
| CN113692180A (en) * | 2021-07-30 | 2021-11-23 | 东莞职业技术学院 | Network information safety management device |
| CN113692180B (en) * | 2021-07-30 | 2023-08-15 | 东莞职业技术学院 | Network information security management device |
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| CN109951981B (en) | 2021-07-13 |
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