CN106996117B - A kind of protective device and its operating method of municipal administration inspection shaft - Google Patents
A kind of protective device and its operating method of municipal administration inspection shaft Download PDFInfo
- Publication number
- CN106996117B CN106996117B CN201610859172.3A CN201610859172A CN106996117B CN 106996117 B CN106996117 B CN 106996117B CN 201610859172 A CN201610859172 A CN 201610859172A CN 106996117 B CN106996117 B CN 106996117B
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- China
- Prior art keywords
- well head
- electromagnetic coil
- body frame
- magnet
- protection network
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/127—Manhole shafts; Other inspection or access chambers; Accessories therefor with devices for impeding fall or injuries of persons
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
A kind of protective device and its operating method of municipal administration inspection shaft, described device are used for road main body（9）In catch pit port（90）The cover is carried out, including is set to the road main body（9）On connecting hole（88）And it is inserted into the connecting hole（88）Protection network body frame（8）, the protection network body frame（8）It is equipped at top center in protection steel mesh, as a result, when protection network body frame（8）Slide into the connecting hole（88）When, the catch pit port（90）It is closed, when protection network body frame（8）Slip away the connecting hole（88）When middle, the catch pit port（90）Allow lower well construction, whole device of the present invention is reliable for operation, can effectively ensure the safety of pedestrians and vehicles, while facilitating well servicing under construction personnel when needing to safeguard underground construction.
Description
Technical field
The present invention relates to municipal field, the specially a kind of protective device and its operating method of municipal inspection shaft.
Background technology
With the continuous development in city, urban construction paces are constantly accelerated, and various urban operating mechanisms also accordingly increase.Such as telecommunications
Piping facility, gas pipeline facility, water supply and sewerage pipeline facility etc..When various facility well lids damage or is stolen, just greatly
The generation of safety accident is increased, in addition, the access path communicated with pipe network on road also increases, the well lid of access hole
There is no any safeguard measure, not only and its be easily lost, cause casualties, or even in the serious road surface of ponding, pipeline
Air pressure can jack up well lid, and well lid is caused to fall off, and cause unnecessary casualties or property loss.In such a situa-tion,
We have invented a kind of protective devices of municipal inspection shaft, this device has effectively ensured the safety of pedestrians and vehicles, while needing
Facilitate well servicing under construction personnel when being safeguarded to underground construction, returns society and bring great social benefit and economic effect
Benefit creates a fine society of harmony jointly.
Invention content
The purpose of the present invention is to provide a kind of protective devices and its operating method of municipal inspection shaft, for overcoming existing skill
Drawbacks described above in art.
The protective device of municipal administration inspection shaft according to the present invention is used to carry out the cover to the catch pit port in road main body, including
Connecting hole in the road main body and the protection network body frame for being inserted into the connecting hole, the protection network body frame
It is equipped at top center in protection steel mesh, as a result, when protection network body frame slides into the connecting hole, the catch pit port is sealed
It closes, when in protection network body frame slipping away the connecting hole, the catch pit port allows lower well construction；Wherein, the protection network body frame
Left side is fixedly installed the support sliding panel extended downwardly, and the end of the support sliding panel is hinged with idler wheel, the idler wheel with
It the left tilted surface of the double inclined plane top pressure voussoir of stretching motion or right tilted surface can be engaged up and down by bottom top pressure spring, so as to
It is enough by the protection network body frame top pressure to open position or closed position, on the front-rear direction of the left side of the support sliding panel
It is respectively arranged with well head opening preceding magnet and rear magnet, the well head opens preceding magnet and rear magnet constitutes well head and opens use
Magnet assembly is respectively arranged with well head on the front-rear direction of the right side of the support sliding panel and closes with preceding magnet and rear magnetic
Body, the well head closes preceding magnet and rear magnet constitutes well head closing magnet assembly, what the road main body was set in left position
Sliding is disposed with well head opening preceding electromagnetic coil and rear electromagnetic coil respectively on front-rear direction, and the well head opens preceding electromagnetism
Coil and rear electromagnetic coil constitute well head opening electromagnetic coil assembly, and the well head is opened with preceding electromagnetic coil and rear electromagnetic wire
Circle opens preceding magnet with the well head respectively and rear magnet is corresponding, and the road main body is distinguished on the front-rear direction of right position
Sliding is disposed with well head and closes with preceding electromagnetic coil and rear electromagnetic coil, well head the closing preceding electromagnetic coil and rear electromagnetic wire
Circle constitutes well head closings electromagnetic coil assembly, the well head preceding electromagnetic coil of closing and rear electromagnetic coil respectively with the well
Mouth closes preceding magnet and rear magnet corresponds to；The well head opening electromagnetic coil assembly and well head closing electromagnetic coil assembly
In lower electricity by the stretching action of respective extension spring and in retracted mode to avoid interference with the protection network body frame
Movement, the protection network body frame are equipped with lock hole, the road below the connecting hole close to the bottom of the connecting hole side
Locking device is equipped in the main body of road, the locking device includes the locking driving electricity that outer surface is fixedly connected with the road main body
Machine, locking sliding cavity and the sliding shoe being arranged in the locking sliding cavity, be equipped at the top of the sliding shoe for
The elongated insertion part of the lock hole cooperation locking connection, locking sliding cavity both sides are equipped with sliding slot, and the sliding shoe both ends are slided
Dynamic the sliding shoe bottom is fixedly connected with locking screw in the sliding slot, and the locking screw bottom thread cooperation connects
It is connected to screw shell, the screw shell bottom is rotatably assorted with the locking driving motor and connect, when the protection network body frame
After sliding into the connecting hole, the elongated insertion part and the lock hole, the locking are driven by the locking driving motor
Accumulator, the accumulator and the locking driving motor Electricity Federation, the electric power storage are equipped in the road main body below device
Pond uses to power in emergency power off.
According to the present invention, the operating method of the protective device of above-mentioned municipal administration inspection shaft, when needing to execute well head opening operation,
The well head opening powers on to be in stretching state and the protection network body frame is attracted to slide to the left with electromagnetic coil assembly, makes
The idler wheel engage with the left tilted surface, it is electric under the well head opening electromagnetic coil assembly later and in retracted mode,
The protection network body frame is locked in opening state by top pressure under the action of the left tilted surface of the double inclined plane top pressure voussoir；Work as needs
When executing well head shutoff operation, the well head closing is powered on to be in stretching state and be attracted described anti-with electromagnetic coil assembly
Protecting wire net body frame slides to the right so that the idler wheel is engaged with the right tilted surface, later under the well head closing electromagnetic coil assembly
Electricity and be in retracted mode, the protection network body frame is locked by top pressure under the action of the right tilted surface of the double inclined plane top pressure voussoir
In off position.
In the device of the invention, due to executing strainer filtering function by means of protection steel mesh, while being able to carry out for anti-
The slide function of protecting wire net body frame closes catch pit port to avoid well lid in the state of thus, it is possible to when constructing without maintenance
It falls off or has damaged protective action, while can ensure to open protection network body frame when needing to safeguard construction, facilitate constructor
The lower well servicing of member.And present invention employs the Electromagnetically-operating coil of left and right sides distribution and double inclined plane top pressure sliding block are matched
Pattern, thus, it is possible to while ensuring protection network body frame remaining positioned in fixed expectation state, can shorten electromagnetic coil
With at a distance from corresponding magnet so that it is guaranteed that the validity of Electromagnetically-operating and improve attraction.
Description of the drawings
Fig. 1 is the overlooking structural schematic diagram of the protective device of the municipal inspection shaft of the present invention.
Fig. 2 is the B-B schematic cross-sectional views of device in Fig. 1, and sliding grid are shown and are closed.
Fig. 3 is the status diagram that the device in Fig. 2 is in sliding grid in opening procedure, and idler wheel connects with left tilted surface at this time
It closes and the opening not yet lower electricity of electromagnetic coil.
Fig. 4 is the schematic cross-sectional view of A-A in Fig. 1.
Fig. 5 is the locking device structure schematic diagram of the present invention.
Specific implementation mode
With reference to Fig. 1-5, the present invention is described in detail.
It is according to an embodiment of the invention municipal administration inspection shaft protective device, for the catch pit port 90 in road main body 9 into
Row the cover includes the connecting hole 88 in the road main body 9 and is inserted into the protection host of the connecting hole 88
Frame 8 is equipped at 8 top center of protection network body frame in protection steel mesh, as a result, when protection network body frame 8 slides into the connection
When hole 88, the catch pit port 90 is closed, and when in protection network body frame 8 slipping away the connecting hole 88, the catch pit port 90 allows
Lower well construction；Wherein, 8 left side of the protection network body frame is fixedly installed the support sliding panel 83 extended downwardly, and the support is slided
The end of movable plate 83 is hinged with idler wheel 84, and the idler wheel 84 is capable of the double of upper and lower stretching motion with by bottom top pressure spring 79
The left tilted surface 72 or right tilted surface 71 of inclined-plane top pressure voussoir 7 engage, so as to by 8 top pressure of protection network body frame to open position
Or closed position, it is described support sliding panel 83 left side front-rear direction on be respectively arranged with well head open preceding magnet 821
With rear magnet 82, the well head opens preceding magnet 821 and rear magnet 82 constitutes well head opening magnet assembly, and the support is slided
Well head is respectively arranged on the front-rear direction of the right side of movable plate 83 to close with preceding magnet and rear magnet 81, the well head closing use
Preceding magnet and rear magnet 81 constitute well head closing magnet assembly, and the road main body 9 is distinguished on the front-rear direction that left position is set
Sliding is disposed with well head opening preceding electromagnetic coil 621 and rear electromagnetic coil 62, and the well head is opened with 621 He of preceding electromagnetic coil
Electromagnetic coil 62 constitutes well head opening electromagnetic coil assembly afterwards, and the well head is opened with preceding electromagnetic coil 621 and rear electromagnetic wire
Circle 62 opens preceding magnet 821 with the well head respectively and rear magnet 82 is corresponding, front and back of the road main body 9 in right position
Sliding is disposed with well head closing preceding electromagnetic coil 611 and rear electromagnetic coil 61 respectively upwards, and the well head closes preceding electromagnetism
Coil 611 and rear electromagnetic coil 61 constitute well head closing electromagnetic coil assembly, and the well head is closed with 611 He of preceding electromagnetic coil
Electromagnetic coil 61 closes preceding magnet with the well head respectively afterwards and rear magnet 81 is corresponding；The well head opening electromagnetic coil group
Part and well head closing electromagnetic coil assembly in lower electricity by the stretching action of respective extension spring and in retracted mode from
And the movement of the protection network body frame 8 is avoided interference with, the protection network body frame 8 is equipped with close to the bottom of 88 side of the connecting hole
Lock hole 80, the road main body 9 of 88 lower section of the connecting hole is interior to be equipped with locking device 85, and the locking device 85 includes outer
Locking driving motor 852, locking sliding cavity 857 and the setting that surface is fixedly connected with the road main body 9 are in the lock
Surely the sliding shoe 854 in cavity 857 is slided, 854 top of the sliding shoe is equipped with for coordinating locking to connect with the lock hole 80
The elongated insertion part 851 connect, 857 both sides of the locking sliding cavity are equipped with sliding slot 856, and the sliding of 854 both ends of the sliding shoe is embedded in institute
It states in sliding slot 856,854 bottom of the sliding shoe is fixedly connected with locking screw 855, and 855 bottom thread of the locking screw is matched
Conjunction is connected with screw shell 853, and 853 bottom of the screw shell is rotatably assorted with the locking driving motor 852 and connect, and works as institute
It states after protection network body frame 8 slides into the connecting hole 88, the elongated insertion part 851 is driven by the locking driving motor 852
With the lock hole 80, the road main body 9 of 85 lower section of the locking device is interior to be equipped with accumulator 858, the accumulator 858
With 852 Electricity Federation of locking driving motor, the accumulator 858 uses to power in emergency power off.
With reference to Fig. 4, illustratively or valuably, wherein the well head opening electromagnetic coil assembly and well head are closed and used
Each of electromagnetic coil assembly is mounted on respective scaling operation component, before each scaling operation component includes
The preceding wedge block 511 and rear wedge block 51 that rear direction is provided separately, the preceding wedge block 511 and rear wedge block 51 divide
It is not connected with corresponding electromagnetic coil, the bottom of the preceding wedge block 511 and rear wedge block 51 is respectively arranged with preceding attraction
Coil 52 and rear sucking coil 51, the preceding sucking coil 52 and rear sucking coil 51 respectively on top pressure wedge shape arm operating parts 3
Preceding attraction magnet 311 and it is rear attract magnet 31 to correspond to respectively, the preceding sucking coil 52 and rear sucking coil 51 are beaten with well head
Open with electromagnetic coil assembly and well head closing with corresponding one in electromagnetic coil assembly synchronize power on, to attract the top pressure
Wedge-shaped arm operating parts 3 moves upwards, sliding with the preceding wedge shape respectively by two wedge-shaped arms of the top pressure wedge shape arm operating parts 3
The effect of block 511 and rear wedge block 51 and make corresponding electromagnetic coil assembly overcome respective extension spring pulling force and by
Top pressure is stretched out.
According to embodiment, the operating method of above-mentioned inspection shaft protective device easy to maintain is opened when needing execution well head
When operation, the well head opening with electromagnetic coil assembly power on in stretching state and attract the protection network body frame 8 to
Left sliding so that the idler wheel 84 is engaged with the left tilted surface 72, later under the well head opening electromagnetic coil assembly electricity and
In retracted mode, the protection network body frame 8 is locked by top pressure under the action of left tilted surface 72 of the double inclined plane top pressure voussoir 7
In opening state；When needing to execute well head shutoff operation, the well head closing is powered on electromagnetic coil assembly stretches to be in
Doing well and the protection network body frame 8 is attracted to slide to the right makes the idler wheel 84 be engaged with the right tilted surface 71, described later
Under well head closing electromagnetic coil assembly electricity and be in retracted mode, in the work of the right tilted surface 71 of the double inclined plane top pressure voussoir 7
It is locked in off position by top pressure with the lower protection network body frame 8.
Due to executing strainer filtering function by means of protection steel mesh, while being able to carry out the sliding behaviour for protection network body frame
Make function, thus, it is possible to without safeguard construct when in the state of catch pit port closed well lid is avoided to fall off or damaged protection
Effect, while can ensure to open protection network body frame when needing to safeguard construction, facilitate well servicing under construction personnel.And this
Invention uses the Electromagnetically-operating coil and the matched pattern of double inclined plane top pressure sliding block that the left and right sides is distributed, and thus, it is possible to true
While protection network body frame is remained positioned in fixed expectation state by guarantor, electromagnetic coil can be shortened at a distance from corresponding magnet
So that it is guaranteed that the validity of Electromagnetically-operating and raising attraction.Whole device is reliable for operation, can effectively ensure pedestrian and
The safety of vehicle, while facilitating well servicing under construction personnel when needing to safeguard underground construction.
Those skilled in the art can define, can in the case of not departing from overall spirit and the design of the present invention
To make the various modifications for above example.It each falls within protection scope of the present invention.The protection scheme of the present invention
It is subject to claims appended hereto.
Claims (3)
1. a kind of protective device of municipal administration inspection shaft, for road main body（9）In catch pit port（90）The cover is carried out, including is set to
The road main body（9）On connecting hole（88）And it is inserted into the connecting hole（88）Protection network body frame（8）, described
Protection network body frame（8）It is equipped at top center in protection steel mesh, as a result, when protection network body frame（8）Slide into the connecting hole
（88）When, the catch pit port（90）It is closed, when protection network body frame（8）Slip away the connecting hole（88）When middle, the catch pit port
（90）Allow lower well construction；Wherein, the protection network body frame（8）Left side is fixedly installed the support sliding panel extended downwardly
（83）, the support sliding panel（83）End be hinged with idler wheel（84）, the idler wheel（84）With by bottom top pressure spring
（79）And it is capable of the double inclined plane top pressure voussoir of upper and lower stretching motion（7）Left tilted surface（72）Or right tilted surface（71）Engagement, so as to
Enough by the protection network body frame（8）Top pressure is to open position or closed position, the support sliding panel（83）Left side before
It is respectively arranged with well head in rear direction and opens preceding magnet（821）With rear magnet（82）, the preceding magnet of the well head opening（821）
With rear magnet（82）Constitute well head opening magnet assembly, the support sliding panel（83）Right side front-rear direction on respectively
Well head is provided with to close with preceding magnet and rear magnet（81）, well head the closing preceding magnet and rear magnet（81）Well head is constituted to close
It closes and uses magnet assembly, the road main body（9）Sliding is disposed with well head and opens preceding electricity respectively on the front-rear direction that left position is set
Magnetic coil（621）With rear electromagnetic coil（62）, the preceding electromagnetic coil of the well head opening（621）With rear electromagnetic coil（62）It constitutes
Well head opening electromagnetic coil assembly, the well head open preceding electromagnetic coil（621）With rear electromagnetic coil（62）Respectively with institute
It states well head and opens preceding magnet（821）With rear magnet（82）It is corresponding, the road main body（9）Divide on the front-rear direction of right position
Well head Hua Dong be disposed with and close preceding electromagnetic coil（611）With rear electromagnetic coil（61）, the preceding electromagnetic wire of the well head closing
Circle（611）With rear electromagnetic coil（61）Well head closing electromagnetic coil assembly is constituted, the well head closes preceding electromagnetic coil
（611）With rear electromagnetic coil（61）It is closed respectively with preceding magnet and rear magnet with the well head（81）It is corresponding；The well head is opened
With electromagnetic coil assembly and well head closing electromagnetic coil assembly in lower electricity by the stretching action of respective extension spring and
In retracted mode to avoid interference with the protection network body frame（8）Movement, the protection network body frame（8）Close to the connecting hole
（88）The bottom of side is equipped with lock hole（80）, the connecting hole（88）The road main body of lower section（9）It is interior to be equipped with locking dress
It sets（85）, the locking device（85）Including outer surface and the road main body（9）The locking driving motor being fixedly connected
（852）, locking sliding cavity（857）And setting slides cavity in the locking（857）Interior sliding shoe（854）, the cunning
Motion block（854）Top be equipped with for the lock hole（80）The elongated insertion part of cooperation locking connection（851）, the locking sliding sky
Chamber（857）Both sides are equipped with sliding slot（856）, the sliding shoe（854）Both ends sliding is embedded in the sliding slot（856）It is interior, the sliding
Block（854）Bottom is fixedly connected with locking screw（855）, the locking screw（855）Bottom thread is connected with thread bush
Cylinder（853）, the screw shell（853）Bottom and the locking driving motor（852）Be rotatably assorted connection, when the protection network
Body frame（8）Slide into the connecting hole（88）In after, pass through the locking driving motor（852）Drive the elongated insertion part（851）
With the lock hole（80）, the locking device（85）The road main body of lower section（9）It is interior to be equipped with accumulator（858）, described
Accumulator（858）With the locking driving motor（852）Electricity Federation, the accumulator（858）To be supplied in emergency power off
Electricity uses.
2. a kind of protective device of municipal inspection shaft as described in claim 1, wherein the well head opening electromagnetic coil assembly
It is mounted on respective scaling operation component with each of electromagnetic coil assembly with well head closing, each scaling operation
Component includes the preceding wedge block that front-rear direction is provided separately（511）With rear wedge block（51）, the preceding wedge block
（511）With rear wedge block（51）It is connected respectively with corresponding electromagnetic coil, the preceding wedge block（511）With rear wedge block
（51）Bottom be respectively arranged with preceding sucking coil（52）With rear sucking coil（51）, the preceding sucking coil（52）With rear attraction
Coil（51）Respectively with top pressure wedge shape arm operating parts（3）On preceding attraction magnet（311）With rear attraction magnet（31）It corresponds to respectively,
The preceding sucking coil（52）With rear sucking coil（51）With well head opening electromagnetic coil assembly and well head closing electromagnetic wire
Corresponding one synchronizes and powers in coil assembly, to attract the top pressure wedge shape arm operating parts（3）It moves upwards, passes through the top
The wedge-shaped arm operating parts of pressure（3）Two wedge-shaped arms respectively with the preceding wedge block（511）With rear wedge block（51）Effect
And corresponding electromagnetic coil assembly is made to overcome the pulling force of respective extension spring and be stretched out by top pressure.
3. a kind of operating method of the protective device of municipal inspection shaft as claimed in claim 1 or 2 is opened when needing execution well head
When operation, the well head opening powers on to be in stretching state and attracts the protection network body frame with electromagnetic coil assembly（8）
It slides to the left so that the idler wheel（84）With the left tilted surface（72）It engages, later the well head opening electromagnetic coil assembly
It is lower electricity and be in retracted mode, in the double inclined plane top pressure voussoir（7）Left tilted surface（72）Under the action of the protection network body frame
（8）Opening state is locked in by top pressure；When needing to execute well head shutoff operation, on the well head closing electromagnetic coil assembly
Electricity is to be in stretching state and attract the protection network body frame（8）Sliding is so that the idler wheel to the right（84）With the right tilted surface
（71）Engagement, later under the well head closing electromagnetic coil assembly electricity and be in retracted mode, in the double inclined plane top pressure wedge
Block（7）Right tilted surface（71）Under the action of the protection network body frame（8）In off position by top pressure locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859172.3A CN106996117B (en) | 2016-09-29 | 2016-09-29 | A kind of protective device and its operating method of municipal administration inspection shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610859172.3A CN106996117B (en) | 2016-09-29 | 2016-09-29 | A kind of protective device and its operating method of municipal administration inspection shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106996117A CN106996117A (en) | 2017-08-01 |
| CN106996117B true CN106996117B (en) | 2018-11-06 |
Family
ID=59431281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610859172.3A Active CN106996117B (en) | 2016-09-29 | 2016-09-29 | A kind of protective device and its operating method of municipal administration inspection shaft |
Country Status (1)
| Country | Link |
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| CN (1) | CN106996117B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561037B (en) * | 2020-06-05 | 2021-08-17 | 潘洁明 | Inspection shaft that protecting effect is good |
| CN112302053B (en) * | 2020-12-04 | 2021-10-26 | 国网山东省电力公司建设公司 | Protection cable shaft |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100661049B1 (en) * | 2006-01-23 | 2006-12-22 | (주)우암건설 | Manhole height adjustment device and manhole repair construction method utilizing manhole height adjustment method |
| CN101100863A (en) * | 2006-07-07 | 2008-01-09 | 夏都 | Anti-theft well cover with magnetic lock |
| CN103132543A (en) * | 2011-11-24 | 2013-06-05 | 襄阳市高新技术开发区盛力电子科技经营部 | Inspection well cover with magnetic attraction block |
| CN102561399B (en) * | 2012-01-16 | 2015-08-12 | 昆明迪森电气有限公司 | Wireless electric-controlled manhole lid device and realize the method for manhole cover anti-theft |
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2016
- 2016-09-29 CN CN201610859172.3A patent/CN106996117B/en active Active
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| Publication number | Publication date |
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| CN106996117A (en) | 2017-08-01 |
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Effective date of registration: 20180921 Address after: 510000 No. 1095, Zhongshan Road, Tianhe District, Guangzhou, Guangdong 301 Applicant after: Guangdong moisten Construction Engineering Co., Ltd. Address before: 510660 Tianhe District, Guangzhou, Guangdong, Huangcun village, two lane two lane 3, 551 room. Applicant before: Guangzhou top mechanical & Electrical Equipment Co., Ltd. |
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