CN206737600U - Door lock interlock - Google Patents
Door lock interlock Download PDFInfo
- Publication number
- CN206737600U CN206737600U CN201720539098.7U CN201720539098U CN206737600U CN 206737600 U CN206737600 U CN 206737600U CN 201720539098 U CN201720539098 U CN 201720539098U CN 206737600 U CN206737600 U CN 206737600U
- Authority
- CN
- China
- Prior art keywords
- door
- adhesive part
- power
- door lock
- circuit
- 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.)
- Active
Links
- 230000000903 blocking effect Effects 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 30
- 239000000853 adhesive Substances 0.000 claims description 62
- 230000001070 adhesive effect Effects 0.000 claims description 62
- 230000005484 gravity Effects 0.000 claims description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
- 229910018503 SF6 Inorganic materials 0.000 description 60
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 60
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
Abstract
The utility model provides a kind of door lock interlock, including：SF6 measuring instruments, for gathering the content of SF6 gases in switchgear house；Blocking mechanism, blocking mechanism being at least partially seated on the room door of switchgear house and being connected with SF6 measuring instruments, to obtain the real-time content value for the SF6 gases that SF6 measuring instruments are collected and room door is locked on doorframe when real-time content value exceedes predetermined content value.The door lock interlock includes SF6 measuring instruments and blocking mechanism, due to content of the SF6 measuring instruments for gathering SF6 gases in switchgear house, blocking mechanism being at least partially seated on the room door of switchgear house and being connected with SF6 measuring instruments, so, door lock mechanism can be utilized to obtain the real-time content value for the SF6 gases that SF6 measuring instruments are collected and room door is locked on doorframe when real-time content value exceedes predetermined content value, and then room door locking when the SF6 gas contents of room door are exceeded can be realized, so as to solve the problems, such as that the room door of high-tension distribution chamber of converting of the prior art can not reliable locking.
Description
Technical field
Work about electric power field is the utility model is related to, in particular to a kind of door lock interlock.
Background technology
At present, each transformer station's high pressure GIS rooms are equipped with SF6 warning devices outdoors, after indoor SF6 content overproofs are detected just
It can prompt to alarm.Because it is cue, fail to carry out forced blocking on the door, therefore exist " indoor SF6 gases are exceeded,
Personnel ignore alarm signal, make a forcible entry into, and body is caused damage " potential safety hazard, therefore be badly in need of design SF6 gas leakage warnings
Door lock blocking device, to solve the above problems.
The existing SF6 warning devices used simply carry out safety instruction, but operation maintenance personnel to indoor SF6 gas contents state
Personal safety ensure also need to formulate extra management and control measures, such as " SF6 warning devices alarm when, forbid making a forcible entry into high pressure GIS
The management and control such as room " regulations.Meanwhile to strictly observe management and control regulations also critically important for operation maintenance personnel itself.
The existing SF6 warning devices used are self-contained unit, are contacted with door lock assembly without any, only possess alarm work(
Energy, do not possess the function of latching door.
Utility model content
Main purpose of the present utility model is to provide a kind of door lock interlock, matched somebody with somebody with solving high pressure of the prior art
The room door of electric room can not reliable locking the problem of.
To achieve these goals, the utility model provides a kind of door lock interlock, including：SF6 measuring instruments, are used for
Gather the content of SF6 gases in switchgear house；Blocking mechanism, blocking mechanism be at least partially seated on the room door of switchgear house and with
SF6 measuring instruments connect, to obtain the real-time content value for the SF6 gases that SF6 measuring instruments are collected and exceed in real-time content value
Room door is set to be locked on doorframe during predetermined content value.
Further, blocking mechanism also includes：First adhesive part, the first adhesive part are arranged on the door of room；Second adhesive part,
Second adhesive part is arranged on doorframe, and when real-time content value exceedes predetermined content value and the first adhesive part adhesive.
Further, the first adhesive part is arranged on the middle part of room door upper end.
Further, the first adhesive part is iron plate, and the second adhesive part is magnet.
Further, the first adhesive part is iron plate, and the second adhesive part is electromagnet assembly, when the coil of electromagnet assembly leads to
After electricity, the first adhesive part and the second adhesive part adhesive.
Further, blocking mechanism includes being used for the power-on circuit for coil electricity, is provided with power-on circuit for controlling
The power knob of power-on circuit break-make processed, power knob are arranged on the outside of room door.
Further, blocking mechanism also includes：Gravity sensor, gravity sensor be arranged on the inner side of room door and with energization
Circuit is connected to control the break-make of power-on circuit.
Further, it is provided with power-on circuit and goes out door switch and gravity switch for control power-on circuit break-make, weight
Power switch is arranged in series with switch of going out；Gravity sensor is connected with gravity switch, to control the opening and closing of gravity switch, is gone out out
Close the inner side for being arranged on room door.
Further, power-on circuit has the alarm branch road and locking branch road being arranged in parallel, and coil is arranged on locking branch road
On, it is provided with alarm lamp on branch road of alarming.
Further, it is provided with current-limiting resistance on alarm branch road.
Door lock interlock in the utility model includes SF6 measuring instruments and blocking mechanism, because SF6 measuring instruments are used to adopt
Collect the content of SF6 gases in switchgear house, blocking mechanism is at least partially seated on the room door of switchgear house and connected with SF6 measuring instruments
Connect, so, door lock mechanism can be utilized to obtain the real-time content value for the SF6 gases that SF6 measuring instruments are collected and contained in real time
Value makes room door be locked on doorframe when exceeding predetermined content value, and then can realize that room door surpasses in the SF6 gas contents of room door
Timestamp locking, so as to solve the problems, such as that the room door of high-tension distribution chamber of converting of the prior art can not reliable locking.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 shows the structural representation that embodiment when on the door of room is arranged on according to door lock blocking device of the present utility model
Figure；And
Fig. 2 shows the structural representation of the power-on circuit of the door lock blocking device in Fig. 1.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, blocking mechanism；11st, the first adhesive part；12nd, the second adhesive part；13rd, coil；20th, room door；30th, power-on circuit；
31st, alarm branch road；32nd, locking branch road；41st, door switch is gone out；42nd, gravity switch；43rd, latch contact switchs；44th, power knob；
50th, gravity sensor；60th, alarm lamp；70th, current-limiting resistance.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
The utility model provides a kind of door lock interlock, refer to Fig. 1 and Fig. 2, and the door lock interlock includes：
SF6 measuring instruments, for gathering the content of SF6 gases in switchgear house；Blocking mechanism 10, blocking mechanism 10 are at least partially seated at
It is connected on the room door 20 of switchgear house and with SF6 measuring instruments, to obtain the real-time content for the SF6 gases that SF6 measuring instruments are collected
Value simultaneously makes room door 20 be locked on doorframe when real-time content value exceedes predetermined content value.
Door lock interlock in the utility model includes SF6 measuring instruments and blocking mechanism 10, because SF6 measuring instruments are used for
The content of SF6 gases in switchgear house is gathered, blocking mechanism 10 being at least partially seated on the room door 20 of switchgear house and being surveyed with SF6
Instrument connection is measured, so, blocking mechanism 10 can be utilized to obtain the real-time content value for the SF6 gases that SF6 measuring instruments are collected simultaneously
Room door 20 is locked on doorframe when real-time content value exceedes predetermined content value, and then room door 20 can be realized in room door
Locking when SF6 gas contents are exceeded, reliably locking it can not be asked so as to solve the room door of high-tension distribution chamber of converting of the prior art
Topic.
In order to realize the locking of room door 20 and doorframe, as shown in figure 1, blocking mechanism 10 also includes：First adhesive part 11, the
One adhesive part 11 is arranged on room door 20；Second adhesive part 12, the second adhesive part 12 are arranged on doorframe, and in real-time content value
During more than predetermined content value with the adhesive of the first adhesive part 11.So, when the content for detecting SF6 gases (sulfur hexafluoride gas) surpasses
Timestamp, the locking of room door by the adhesive of the first adhesive part 11 and the second adhesive part 12, can be realized.
In order to realize the stable locking of room door 20, as shown in figure 1, the first adhesive part 11 is arranged in the upper end of room door 20
Portion.
Specifically, the first adhesive part 11 is iron plate, and the second adhesive part 12 is magnet.By making the first adhesive part 11 be iron
Plate, it is magnet to make the second adhesive part 12, can be with the more convenient adhesive for realizing the first adhesive part 11 and the second adhesive part 12.Having
When body is implemented, iron plate can be a part for room door 20, or the iron block on room door 20.
In the present embodiment, the first adhesive part 11 is iron plate, and the second adhesive part 12 is electromagnet assembly, works as electromagnet assembly
Coil 13 be powered after, the first adhesive part 11 and the adhesive of the second adhesive part 12.By making the first adhesive part 11 be iron plate, second inhales
Component 12 is electromagnet assembly, can be with the more convenient adhesive for realizing the first adhesive part 11 and the second adhesive part 12.
In order to more easily realize the adhesive of the first adhesive part 11 and the second adhesive part 12, as shown in Fig. 2 blocking mechanism
10 include being used for the power-on circuit 30 for coil electricity, and the electricity for controlling the break-make of power-on circuit 30 is provided with power-on circuit 30
Source button 44, power knob 44 are arranged on the outside of room door 20.
Preferably, latch contact switch 43, SF6 measuring instruments and the letter of latch contact switch 43 are provided with power-on circuit 30
Number connection, when the real-time content value for the SF6 gases that SF6 measuring instruments are collected exceedes predetermined content value, SF6 measuring instruments are sent
Block signal makes power-on circuit 30 electric to control latch contact switch 43 to close, and coil 13 must be electric, produces electromagnet
Magnetic, and then make the first adhesive part 11 and the adhesive of the second adhesive part 12, so as to which room door 20 is locked on doorframe.
If it is indoor original have staff if, if detecting the too high levels of SF6 gases, worker personnel need from
Interior is escaped from, therefore, blocking mechanism 10 also includes：Gravity sensor 50, gravity sensor 50 are arranged on the inner side of room door 20 simultaneously
It is connected with power-on circuit 30 to control the break-make of power-on circuit 30.It can be seen that when operator station is after on gravity sensor 50, weight
Power inductor 50 senses that gravity exceedes predetermined value, and power-on circuit 30 will be controlled to power off, and then makes the dead electricity of coil 13.
In order to realize control of the gravity sensor 50 to power-on circuit 30, as shown in Fig. 2 being provided with use on power-on circuit 30
Go out door switch 41 and gravity switch 42 in the control break-make of power-on circuit 30, gravity switch 42 is arranged in series with going out door switch 41；
Gravity sensor 50 is connected with gravity switch 42, to control the opening and closing of gravity switch 42, is gone out door switch 41 and is arranged on room door 20
Inner side.
It can be seen that gravity sensor 50 controls the break-make of power-on circuit 30 by gravity switch 42, and in order to prevent unexpected hair
Raw, in room, the inner side of door 20 sets out door switch 41, if the uncontrollable power-on circuit 30 of gravity sensor 50 powers off, work people
Member can directly press out door switch 41, make the dead electricity of power-on circuit 30.
In order to send police instruction after the content overproof of SF6 gases, as shown in Fig. 2 power-on circuit 30 is set with parallel connection
The alarm branch road 31 and locking branch road 32 put, coil 13 are arranged on locking branch road 32, and alarm lamp is provided with branch road 31 of alarming
60.So, after SF6 measuring instruments detect the content overproof of SF6 gases, power-on circuit 30 can be made to be powered, and then make alarm lamp
60 is luminous.
In the present embodiment, it is provided with current-limiting resistance 70 on alarm branch road 31.
In GIS rooms outdoors, by the reliable locking of door when SF6 measurement apparatus is alarmed, prevent personnel to be strayed into, eliminate safe hidden trouble.
In GIS rooms, either door whether locking, quickly and reliably door can be opened.
Door lock blocking device in the utility model is a kind of SF6 leakage alarms door lock blocking device.SF6 leakage alarm doors
Locking locking device by SF6 measuring instruments, alarm lamp, gravity sensor, enter door switch, electromagnet coil, blocking mechanism, solution lock machine
Structure, electromagnet mechanism composition.
Under normal circumstances, the latch contact in blocking mechanism disconnects, and the coil in electromagnet mechanism is in power failure state,
Door can be with normally-open, and alarm lamp goes out；, can be to blocking mechanism after SF6 measuring instruments detect high pressure GIS rooms SF6 content overproofs
Send block signal, the locking contact in locked loop, make the coil charges in electromagnet mechanism, produce attraction and hold
Iron plate, reaches latch effect, and alarm lamp is bright.
Solution lock-switch (power knob 44) enter outdoors, if indoor SF6 gas contents are exceeded, in emergency circumstances work people
Member has carried out the safety measure of itself, and when needing the compulsive unlocking to enter high pressure GIS rooms, pressing in door switch can disconnect in blocking mechanism
Power knob, make coil losing electricity, so that blocking device is ineffective.
Gravity sensor 50 is located in front of the door indoors, when the action of SF6 leaky gates lockings locking device, office work personnel go out
When, the weight of itself will make gravity sensor action in front of the door, disconnect gravity power knob, make lock release, gravity sensor sense
Definite value is answered to may be provided in 30kg.
When SF6 is leaked, outside work personnel can be effectively prevented to be strayed into, while go out and do not cause to office work personnel
Any influence.
The key problem in technology point of door lock blocking device in the utility model is：
1st, at this stage, locking can not be completed after the outdoor SF6 measurement apparatus alarm of transformer station's high pressure GIS rooms.This door lock closes
Locking device utilizes latching logic loop, by door reliable locking from the outside, eliminate the possibility that staff is strayed into, effective guarantee work
Make the safety of personnel, reduce personal safety hidden danger.
2nd, the present invention by gravity sensor, enter door switch, electromagnet coil, blocking mechanism, unlocking mechanism realize SF6 survey
Easily and fast, reliably door can be opened from outdoor locking, interior after amount device alarm, be not required to operate by other, reduce
The probability caused danger.
As can be seen from the above description, the utility model the above embodiments realize following technique effect：
Door lock interlock in the utility model includes SF6 measuring instruments and blocking mechanism 10, because SF6 measuring instruments are used for
The content of SF6 gases in switchgear house is gathered, blocking mechanism 10 being at least partially seated on the room door 20 of switchgear house and being surveyed with SF6
Instrument connection is measured, so, blocking mechanism 10 can be utilized to obtain the real-time content value for the SF6 gases that SF6 measuring instruments are collected simultaneously
Room door 20 is locked on doorframe when real-time content value exceedes predetermined content value, and then room door 20 can be realized in room door
Locking when SF6 gas contents are exceeded, reliably locking it can not be asked so as to solve the room door of high-tension distribution chamber of converting of the prior art
Topic.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.
In addition, term " comprising " and " having " and their any deformation, it is intended that cover it is non-exclusive include, example
Such as, process, method, system, product or the equipment for containing series of steps or unit are not necessarily limited to those clearly listed
Step or unit, but may include not list clearly or for intrinsic other of these processes, method, product or equipment
Step or unit.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.
For example, if the device in accompanying drawing is squeezed, it is described as " above other devices or construction " or " in other devices
On part or construction " device after will be positioned as or " in other devices or constructing it " below other devices or construction "
Under ".Thus, exemplary term " in ... top " can include " in ... top " and " in ... lower section " two kinds of orientation.Should
Device can also other different modes positioning (being rotated by 90 ° or in other orientation), it is and relative to space used herein above
Respective explanations are made in description.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. door lock interlock, it is characterised in that including：SF6 measuring instruments, for gathering the content of SF6 gases in switchgear house；Blocking mechanism (10), the blocking mechanism (10) be at least partially seated on the room door (20) of the switchgear house and with institute State SF6 measuring instruments connection, with obtain the real-time content value for the SF6 gases that the SF6 measuring instruments are collected and it is described in real time Content value makes the room door (20) be locked on doorframe when exceeding predetermined content value.
- 2. door lock interlock according to claim 1, it is characterised in that the blocking mechanism (10) also includes：First adhesive part (11), the first adhesive part (11) are arranged on the room door (20)；Second adhesive part (12), the second adhesive part (12) are arranged on the doorframe, and are exceeded in the content value in real time During the predetermined content value with the first adhesive part (11) adhesive.
- 3. door lock interlock according to claim 2, it is characterised in that the first adhesive part (11) is arranged on described The middle part of room door (20) upper end.
- 4. door lock interlock according to claim 2, it is characterised in that the first adhesive part (11) is iron plate, institute It is magnet to state the second adhesive part (12).
- 5. door lock interlock according to claim 2, it is characterised in that the first adhesive part (11) is iron plate, institute It is electromagnet assembly to state the second adhesive part (12), after the coil (13) of the electromagnet assembly is powered, the first adhesive part And the second adhesive part (12) adhesive (11).
- 6. door lock interlock according to claim 5, it is characterised in that the blocking mechanism (10) includes being used for for institute The power-on circuit (30) of coil electricity is stated, is provided with the power-on circuit (30) for controlling the power-on circuit (30) break-make Power knob (44), the power knob (44) is arranged on the outside of the room door (20).
- 7. door lock interlock according to claim 6, it is characterised in that the blocking mechanism (10) also includes：Gravity sensor (50), the gravity sensor (50) be arranged on the inner side of the room door (20) and with the power-on circuit (30) connect to control the break-make of the power-on circuit (30).
- 8. door lock interlock according to claim 7, it is characterised in that be provided with and be used on the power-on circuit (30) Control the power-on circuit (30) break-make goes out door switch (41) and gravity switch (42), the gravity switch (42) with it is described go out Door switch (41) is arranged in series；The gravity sensor (50) is connected with the gravity switch (42), to control the gravity to open Close the opening and closing of (42), it is described go out door switch (41) be arranged on the inner side of the room door (20).
- 9. door lock interlock according to claim 6, it is characterised in that the power-on circuit (30), which has, to be arranged in parallel Alarm branch road (31) and locking branch road (32), the coil (13) is arranged on the locking branch road (32), the alarm branch Alarm lamp (60) is provided with road (31).
- 10. door lock interlock according to claim 9, it is characterised in that set on the alarm branch road (31) limited Leakage resistance (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720539098.7U CN206737600U (en) | 2017-05-15 | 2017-05-15 | Door lock interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720539098.7U CN206737600U (en) | 2017-05-15 | 2017-05-15 | Door lock interlock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206737600U true CN206737600U (en) | 2017-12-12 |
Family
ID=60564888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720539098.7U Active CN206737600U (en) | 2017-05-15 | 2017-05-15 | Door lock interlock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206737600U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915398A (en) * | 2018-08-27 | 2018-11-30 | 国网江苏省电力有限公司镇江供电分公司 | Substation's security protection system |
| CN110219513A (en) * | 2019-06-12 | 2019-09-10 | 南京东屋电气有限公司 | A kind of lockset connector based on gravity accelerometer and opening and closing locking method |
| CN111075274A (en) * | 2019-12-19 | 2020-04-28 | 广东电网有限责任公司 | Anti-theft box-type transformer substation |
-
2017
- 2017-05-15 CN CN201720539098.7U patent/CN206737600U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915398A (en) * | 2018-08-27 | 2018-11-30 | 国网江苏省电力有限公司镇江供电分公司 | Substation's security protection system |
| CN110219513A (en) * | 2019-06-12 | 2019-09-10 | 南京东屋电气有限公司 | A kind of lockset connector based on gravity accelerometer and opening and closing locking method |
| CN111075274A (en) * | 2019-12-19 | 2020-04-28 | 广东电网有限责任公司 | Anti-theft box-type transformer substation |
| CN111075274B (en) * | 2019-12-19 | 2021-06-11 | 广东电网有限责任公司 | Anti-theft box-type transformer substation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206737600U (en) | Door lock interlock | |
| CN105847098A (en) | Internet-of-things-based intelligent community management system | |
| CN206619006U (en) | Intermediate switchgear cabinet and switch cubicle monitoring system | |
| CN105225301A (en) | A kind of intelligent door lock system based on WIFI and Cloud Server | |
| CN109510311A (en) | Power distribution cabinet running environment monitoring device and its application method | |
| CN205845468U (en) | Substation secondary device screen cabinet safety warning-panel | |
| US8791820B2 (en) | Device locking systems, lock trees, and lockout methods | |
| CN206096907U (en) | Building door and window safety control system | |
| CN204754670U (en) | Hyperbaric chamber emergency exits | |
| CN208001149U (en) | Security appliance system | |
| CN206023023U (en) | There is the high-voltage central-positioned switch cubicle of pressure relief device | |
| CN208938315U (en) | A kind of delay confirmation intelligent alarm | |
| CN201726107U (en) | Alarm with electrically controlled lock for preventing mistakenly entering charged chamber | |
| CN209494343U (en) | Substation's security protection system | |
| CN209608393U (en) | Power distribution cabinet running environment monitoring device | |
| CN207392945U (en) | A kind of safety lock for power distribution cabinet | |
| KR200268301Y1 (en) | Opening and closing control unit of door | |
| CN205427006U (en) | Anti -electricity -theft high -pressure electric energy measuring cabinet | |
| CN113362547A (en) | Safety reminding method for substation equipment in working | |
| CN217420830U (en) | Intelligent lock system and emergency door adopting same | |
| CN103559765A (en) | Anti-theft alarm device of distribution room | |
| CN108915398A (en) | Substation's security protection system | |
| KR100748217B1 (en) | Vertical type door apparatus of distributing board | |
| GB2280709A (en) | Building security system | |
| CN216053223U (en) | Community property entrance guard alarm device based on Internet of things |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |