CN205530368U - Cable theftproof well lid - Google Patents
Cable theftproof well lid Download PDFInfo
- Publication number
- CN205530368U CN205530368U CN201620292578.3U CN201620292578U CN205530368U CN 205530368 U CN205530368 U CN 205530368U CN 201620292578 U CN201620292578 U CN 201620292578U CN 205530368 U CN205530368 U CN 205530368U
- Authority
- CN
- China
- Prior art keywords
- well lid
- module
- push rod
- socket
- permanent magnet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a cable theftproof well lid mainly solves the easy technical problem who is stolen of well lid, belongs to well lid technical field. It includes well lid, well seat, locking device and control system, locking device include mechanism's box and locking mechanism, locking device install mechanism's box in, locking mechanism includes advancing mechanism and spring bolt mechanism, spring bolt mechanism is located advancing mechanism's the outside, advancing mechanism include push rod, push rod housing and step motor, the push rod suit is in the push rod housing in, the push rod is hollow structure, the outer end of push rod is equipped with first permanent magnet, first permanent magnet is hollow structure, spring bolt mechanism include inserted bar, first socket and reset spring, control system includes single -chip module, intelligent trick lock module, first response module, second response alarm module, wireless receiving module and wireless warning emission module. The utility model discloses effectively solve the well lid by the theft problem.
Description
Technical field
This utility model relates to well lid technical field, specifically a kind of cable theft-prevention well lid.
Background technology
The wire laying mode of the wire laying mode of cable, especially city cable, the general wiring way using underground piping.In view of the situation such as cable connection, maintenance, so will indwelling cable channel well head every a segment distance.In order to avoid pedestrian is caused potential safety hazard by cable well head, so well lid can be installed on each well head.But, some undesirables, are ordered about by interests, cable well lid are implemented theft, causes the biggest potential safety hazard to the public.In prior art, some unit in charge of construction takes some anti-theft measures, such as marking etc. on well lid to well lid, but effect is undesirable.Accordingly, it is desirable to provide a kind of technical scheme, effectively solve the problem that cable shaft lid is stolen.
Utility model content
The purpose of this utility model is to provide a kind of cable theft-prevention well lid, the technical problem the most stolen to solve well lid.
The technical scheme in the invention for solving the technical problem is:
A kind of cable theft-prevention well lid includes well lid, well seat, locking device and control system；
Described well lid is fastened on described well seat, and described locking device is fixed on the lower section of described well lid, and described control system is arranged in described well lid；Described well lid is provided with control chamber and manual operation hole, is provided with manual operation closing door in described manual operation hole；Described well seat is provided with the second socket；
Described locking device includes that mechanism's box and retaining mechanism, described retaining mechanism are arranged in described mechanism's box；Described retaining mechanism includes propulsive mechanism and spring bolt mechanism；Described spring bolt mechanism is positioned at the outside of described propulsive mechanism；Described propulsive mechanism includes push rod, push rod housing and motor, and pushing rod sleeve is contained in described push rod housing；Described push rod is hollow-core construction, and the outer end of described push rod is provided with the first permanent magnet, and described first permanent magnet is hollow-core construction, and the N pole of described first permanent magnet is outwardly；The downside of described push rod is provided with tooth bar；The outer end of the output shaft of described motor is fixedly connected with external gear, and described motor is engaged with the tooth bar on described push rod by described external gear；
Described spring bolt mechanism includes inserted link, the first socket and back-moving spring；
Described inserted link is slidably sleeved in the first described socket, push rod housing alignment described in described first socket correspondence is installed, and the inner of described inserted link is provided with the second permanent magnet, and the S pole of described second permanent magnet is installed inwardly, that is, the N pole of the first permanent magnet and the S pole of the second permanent magnet are installed in opposite directions；Described back-moving spring is sleeved on the outside of described inserted link, and described back-moving spring the inner is fixed on the inner face of inserted link, and the outer end of described back-moving spring is fixed on the inner face of described first socket；
It is set with pull bar in the hollow-core construction of described push rod, and the outer face of described pull bar is fixed on the inner face of described inserted link；The inner of described pull bar is positioned at the lower section in described manual operation hole；
Described control system includes one-chip computer module, intelligent cipher lock module, the first induction module, the second sensing alarming module, wireless receiving module and radio alarming transmitter module；
Described one-chip computer module and intelligent cipher lock module are arranged in the control chamber of described well lid, and described first induction module is arranged on the hole wall of described first socket, and the second described sensing alarming module is arranged in the hole wall in described manual operation hole；
Described one-chip computer module includes single-chip microcomputer, switch module and LED display lamp, and the input of described single-chip microcomputer signal is electrically connected with the outfan of outfan, the first induction module outfan, the outfan of the second sensing alarming module and the switch module of described cipher code lock module by wire respectively；The outfan of described single-chip microcomputer signal is electrically connected by motor signal input part, the signal input part of wireless transmit alarm module and the LED display lamp described in wire difference.
First socket position described in the correspondence of upper surface of described well lid is provided with the first identification groove；Corresponding second socket in described well seat upper edge is provided with the second identification groove.
The upper end of described control chamber is provided with the first upper cover, and the upper end in described manual operation hole is provided with the second upper cover.
Described mechanism's box and the outer layer of retaining mechanism are all coated with anticorrosive coat.
The bottom of described push rod housing is provided with gap.
The outer end of described inserted link uses stainless steel material.
The inner of described back-moving spring is provided with chuck, and described chuck is fixedly connected on the inner face of described inserted link.
Described control system is provided with independent current source, and described retaining mechanism is provided with independent current source.
Described wireless transmit is reported to the police and is provided with alarm buzzer.
The beneficial effects of the utility model are:
1, this utility model has intelligent mode and two kinds of operator schemes of manual mode, and well lid locking does not goes adrift to utilize locking device i.e. to ensure that；Meanwhile, when needs open well lid to cable maintenance, well lid can be opened by simple operations again.
2, in order to be able to realize the intelligent opening pattern of well lid and manually opened pattern, this utility model uses the N pole of the first permanent magnet and the S pole of the second permanent magnet to install in opposite directions, when using intelligence unfolding mode, utilizes the principle that heteropole is attracting, can facilitate and be unlocked by well lid；Use the inner face at pull bar that pull bar is installed, inserted link can be made to break away from the active force of back-moving spring by the way of pulling pull bar, convenient to well lid unblock.
3, moving component of the present utility model, all uses anti-corrosion treatment, is possible to prevent locking device to be affected and corrosion failure by wet environment.
4, the power supply of control system and motor system is individually arranged, and to avoid in the case of sharing a power supply, motion is because of the impact on power supply of moving, thus the impact that control system is caused.
Accompanying drawing explanation
Fig. 1 is that this utility model overall structure lower-left axle surveys view schematic diagram；
Fig. 2 is that this utility model overall structure upper right axle surveys view；
Fig. 3 is the upward view of Fig. 1；
Fig. 4 is that the well lid locking mechanism left axle of opening surveys view；
Fig. 5 is that the well lid locking mechanism right axle of opening surveys view；
Fig. 6 is the front view of Fig. 4；
Fig. 7 is Fig. 4 removal mechanism box Status view；
Fig. 8 is Fig. 7 front view；
Fig. 9 is that the well lid locking mechanism left axle of closed mode surveys view；
Figure 10 is that the well lid locking mechanism right axle of closed mode surveys view；
Figure 11 is the front view of Fig. 9；
Figure 12 is Fig. 9 removal mechanism box Status view；
Figure 13 is Figure 12 front view；
Figure 14 is that the left axle of push-rod assembly surveys view；
Figure 15 is that the right axle of push-rod assembly surveys view；
Figure 16 is the front view of Figure 15；
In figure: 1. well lid；2. well seat；3. control chamber；4. manual operation hole；5. mechanism's box；6. push rod；7. push rod housing；8. motor；9. the first permanent magnet；10. inserted link；11. first sockets；12. back-moving springs；13. pull bars；14. second sockets；15. first identify groove；16. second identify groove；17. tooth bars；18. external gears；19. second permanent magnets.
Detailed description of the invention
As it is shown in figure 1, a kind of cable theft-prevention well lid includes well lid 1, well seat 2, locking device and control system；
Described well lid 1 is provided with control chamber 3 and manual operation hole 4, described control chamber 3 is used for installing fixing control device, the upper end of described control chamber 3 is provided with the first upper cover, described control chamber 3 upper surface is provided with depression edge, the depression edge of described control chamber 3 upper surface is less than the upper surface of well lid 1, described first end cap is fastened on the depression edge of described control chamber 3, the upper surface of the first end cap is concordant with the upper surface of well lid 1, when other objects such as having vehicle passes through from well lid 1, first upper cover is used for bearing pressure, prevent the object on well lid 1 from the device in control chamber 3 is caused damage；
Manual operation hole 4 on described well lid 1 is through hole, i.e. manual operation hole 4 penetrates well lid 1；It is provided with manual operation closing door in described manual operation hole 4, described manual closing door is divided into left and right two parts, described manual closing door and the hole wall chain connection in manual operation hole 4, it is respectively equipped with the first lock ring and the second lock ring on described left and right two parts of manual closing door, when need not utilize manual mode to well lid 1 open and close, the first described lock ring and the second lock ring are locked by lock body；That is, close be in locking closed state；The upper end in described manual operation hole 4 is provided with the second upper cover, described manual operation hole 4 is provided with depression edge, described second end cap is fastened on the depression edge in described manual operation hole 4, the upper surface of the second end cap is concordant with the upper surface of described well lid 1, second end cap, for carrying the pressure of the object passed through above it, prevents other foreign material from falling in manual operation hole 4；
Described locking device includes that mechanism's box 5 and retaining mechanism, described locking device are arranged in described mechanism's box 5, and is fixed on the lower surface of described well lid 1 by mechanism's box 5；Described mechanism's box 5 and the outer layer of retaining mechanism are all coated with anticorrosive coat, carry out anti-corrosion treatment, because well lid 1 is used for wet environment, so anti-corrosion treatment, locking device can be prevented to lose efficacy because of corrosion；
Described retaining mechanism includes propulsive mechanism and spring bolt mechanism；Described spring bolt mechanism is positioned at the outside of described propulsive mechanism, and the two is separated from one another does not contacts；
Described propulsive mechanism includes push rod 6, push rod housing 7 and motor 8；
Described push rod 6 is hollow cylindrical structure, and the outer end of described push rod 6 is provided with the first permanent magnet 9, and the first described permanent magnet 9 is hollow cylindrical structure, and the N pole of described first permanent magnet 9 is outwardly；The downside of described push rod 6 is provided with tooth bar 17；Described push rod housing 7 is hollow cylinder shell structure, and the bottom of described push rod housing 7 is provided with gap, and described gap, in order to avoid the tooth bar 17 of push rod 6 to rub with push rod housing 7, affects transmission effect；The upper end of described push rod housing 7 is provided with the first end ear, and described push rod housing 7 is fixed on the upper cover of described mechanism's box 5 by the first end ear, and described push rod 6 is slidably sleeved in described push rod housing 7；Described motor 8 is provided with motor rack, and described motor 8 is arranged on described mechanism's box 5 by motor rack；The outer end of the output shaft of described motor 8 is fixedly connected with external gear 18, and described motor 8 is engaged with the tooth bar 17 on described push rod 6 by described external gear 18；The described push rod 6 induced effect by motor 8, it is achieved forward and backward in push rod housing 7 reciprocatingly slides.Described motor 8 is provided with independent current source.
Described spring bolt mechanism includes inserted link the 10, first socket 11 and back-moving spring 12；
Described inserted link 10 is cylindrical structure, outer end and first socket 11 of described inserted link 10 use stainless steel, the inner of described inserted link 10 is provided with the second permanent magnet 19, the S pole of described second permanent magnet 19 is inwardly, that is, the first permanent magnet 9 on push rod 6 and the second permanent magnet 19 heteropole on inserted link 10 is attracting；The first described socket 11 uses cylinder housing arrangement, the upper end of described first socket 11 to be provided with the second end ear, and described first socket 11 is fixed on the upper cover of described mechanism's box 5 by the second end ear；Push rod housing 7 alignment described in described first socket 11 correspondence is installed；Described inserted link 10 is slidably sleeved in the first described socket 11；Described back-moving spring 12 is sleeved on the outside of described inserted link 10, and the inner of described back-moving spring 12 is provided with chuck, and described chuck is fixedly connected on the inner face of described inserted link 10, and the outer end of described back-moving spring 12 is fixing with the inner of described first socket 11 to be connected.When well lid 1 and well seat 2 are in the case of locking, and described back-moving spring 12 is in reset state, and described inserted link 10 its outer end under the active force of back-moving spring 12 is stretched out beyond described well lid 1 edge, is plugged on described well seat 2.
Described pull bar 13 is sleeved in the hollow-core construction of described push rod 6, and the outer face of described railing 13 is fixed on the inner face of described inserted link 10, and the inner of described pull bar 13 is positioned at the lower section in described manual operation hole 4, and the end of described pull bar 13 is provided with draw ring.When propulsive mechanism breaks down, unlock manual closing door, pull pull bar 13 by draw ring, drive inserted link 10 to contract, well lid 1 can be unlocked.In case at needs well-digging lid 1, but in the case of intelligent operation mode failures even obtains, the pattern that can be manually operated opens well lid 1.
Described well seat 2 is fixed in the borehole wall, described well seat 2 is provided with the second socket 14, the diameter of described second socket 14 is more than the diameter of described inserted link 10, the second described socket 14 align setting corresponding with the first socket 11 on described well lid 1, i.e., under the situation that well lid 1 and well seat 2 are locked, by inserted link 10 by the first socket 11 and the second socket 14 grafting；Described well seat 2 is provided with depression upper edge, and described well lid 1 snaps onto on the depression upper edge of described well seat 2.Corresponding second socket 14 in described well seat 2 upper edge is provided with the second identification groove 16；First socket 11 position described in the correspondence of upper surface of described well lid 1 is provided with the first identification groove 15, the first described identification groove 15 and second identifies that groove 16 acts primarily as marked effect, during facilitating well lid 1 and well seat 2 to fasten, on well lid 1, the first socket 11 aligns with the second socket 14 on well seat 2 installation.
Described control system includes one-chip computer module, intelligent cipher lock module, the first induction module, the second sensing alarming module, wireless receiving module and radio alarming transmitter module；
Described one-chip computer module and intelligent cipher lock module are arranged in the control chamber 3 of described well lid 1, described first induction module is arranged on the hole wall of described first socket 11, the second described sensing alarming module is arranged in the hole wall in described manual operation hole 4, and the second described sensing alarming module is positioned at below described closing door.
Described one-chip computer module includes single-chip microcomputer, switch module and LED display lamp, and the input of described single-chip microcomputer signal passes through the wire outfan respectively with outfan, the first induction module outfan, the outfan of the second sensing alarming module and the switch module of described cipher code lock module and electrically connects；The outfan of described single-chip microcomputer signal is electrically connected with described motor 8 signal input part, wireless transmit alarm module signal input part and LED display lamp by wire respectively；Described intelligent cipher lock is provided with key board.Described control system is provided with independent current source.The power supply of retaining mechanism and the power supply of control system independently, to prevent in the case of sharing a power supply, the retaining mechanism impact on control system.
Under normal circumstances, due to the reset pulling force effect of back-moving spring 12, well lid 1 and well seat 2 are in locking state, and inserted link 10 is inserted in the first socket 11 and the second socket 14.When needs are opened, proper password is inputted by intelligent cipher lock key board, if password is correct, intelligent cipher lock is to one electric pulse of single-chip microcomputer, after single-chip microcomputer receives pulse signal, single-chip microcomputer triggers signal to LED display lamp one, and LED display lamp sends green glow, represent that password is correct, switch can be opened；After pressing switch, switch is to one electric pulse of single-chip microcomputer, after single-chip microcomputer receives pulse, motor 8 sends unlatching and triggers signal；Motor 8 rotates, and drive the external gear 18 on its output shaft to rotate, described external gear 18, by the tooth bar 17 on engagement push rod 6, and drives push rod 6 to move laterally along push rod housing 7, and at this moment push rod 6 outer end the first permanent magnet 9 is by close for gradually the second permanent magnet 19 with inserted link 10 the inner, gravitation is also gradually increased each other, when being close to certain position, inserted link 10 overcomes the pulling force of back-moving spring 12, slid inward, that is, inserted link 10 is extracted out in the second socket 14；At this moment the first induction module on the first socket 11, senses that, when inserted link 10 slides into fixed position in the first socket 11, the first induction module sends inductive impulse to single-chip microcomputer, and single-chip microcomputer will send stopping signal to motor 8, and now, well lid 1 unlocks and opens.
When propulsive mechanism breaks down, when aptitude manner cannot be opened, this situation can use manually opened mode.Concrete mode is, inputting proper password by intelligent cipher lock key board, if password is correct, intelligent cipher lock is to one electric pulse of single-chip microcomputer, after single-chip microcomputer receives pulse signal, triggering signal to LED display lamp one, LED display lamp sends green glow, represents that password is correct, in the case of password is correct, the output of wireless transmit alarm module will not be triggered open command by single-chip microcomputer, i.e. when the second sensing alarming module has detected that object is manually operated hole 4, also will not send alarm signal；Then, using key to open manual closing door, pull pull bar 13, pull bar 13 will drive inserted link 10 to overcome the pulling force of back-moving spring 12 to remove in the second socket 14, and well lid 1 unlocks.Manually opened pattern, in case under special circumstances, needed for opening well lid 1.
Well lid thief, in the case of not having proper password, cannot be unlocked well lid 1 by aptitude manner；If in the case of not inputting proper password, utilize manual mode that well lid 1 is unlocked by force, owing to being provided with the second sensing alarming module in the hole wall in described manual operation hole 4, in the case of coded lock input not being correctly entered password, when the second sensing alarming module has sensed that object stretches into manual operation hole 4, second sensing alarming module sends electric pulse to single-chip microcomputer, after single-chip microcomputer receives the signal of the second sensing alarming module, wireless transmit alarm module will be sent triggering signal, described wireless transmit alarm module is provided with buzzer and wireless transmitting terminals, wireless transmit alarm module will send chimes of doom, management personnel are sent alarm signal simultaneously, people is had to steal well lid 1 with prompting, management personnel can go to spot, avoid well lid 1 stolen.
Therefore, well lid 1 can be played good anti-theft function by this utility model.Cable is being constructed, when needing to open well lid 1, by aptitude manner ease of Use, well lid 1 unblock can opened well lid 1；When aptitude manner breaks down, manually pattern well lid 1 can be opened.Aptitude manner and manual mode, be required to input password, and therefore in the case of not knowing password, thief will be unable to cable well lid 1 is implemented theft.
Although detailed description of the invention of the present utility model is described by the above-mentioned accompanying drawing that combines; but the not restriction to this utility model protection domain; on the basis of technical solutions of the utility model, those skilled in the art need not to pay various amendments or deformation that performing creative labour can make still in protection domain of the present utility model.
Claims (9)
1. a cable theft-prevention well lid, it is characterised in that include well lid, well seat, locking device and control system；
Described well lid is fastened on described well seat, and described locking device is fixed on the lower section of described well lid, and described control system is arranged in described well lid；Described well lid is provided with control chamber and manual operation hole, is provided with manual operation closing door in described manual operation hole；Described well seat is provided with the second socket；
Described locking device includes that mechanism's box and retaining mechanism, described retaining mechanism are arranged in described mechanism's box；Described retaining mechanism includes propulsive mechanism and spring bolt mechanism；Described spring bolt mechanism is positioned at the outside of described propulsive mechanism；Described propulsive mechanism includes push rod, push rod housing and motor, and pushing rod sleeve is contained in described push rod housing；Described push rod is hollow-core construction, and the outer end of described push rod is provided with the first permanent magnet, and described first permanent magnet is hollow-core construction, and the N pole of described first permanent magnet is outwardly；The downside of described push rod is provided with tooth bar；The outer end of the output shaft of described motor is fixedly connected with external gear, and described motor is engaged with the tooth bar on described push rod by described external gear；
Described spring bolt mechanism includes inserted link, the first socket and back-moving spring；
Described inserted link is slidably sleeved in the first described socket, push rod housing alignment described in described first socket correspondence is installed, and the inner of described inserted link is provided with the second permanent magnet, and the S pole of described second permanent magnet is installed inwardly, that is, the N pole of the first permanent magnet and the S pole of the second permanent magnet are installed in opposite directions；Described back-moving spring is sleeved on the outside of described inserted link, and described back-moving spring the inner is fixed on the inner face of inserted link, and the outer end of described back-moving spring is fixed on the inner face of described first socket；
It is set with pull bar in the hollow-core construction of described push rod, and the outer face of described pull bar is fixed on the inner face of described inserted link；The inner of described pull bar is positioned at the lower section in described manual operation hole；
Described control system includes one-chip computer module, intelligent cipher lock module, the first induction module, the second sensing alarming module, wireless receiving module and radio alarming transmitter module；
Described one-chip computer module and intelligent cipher lock module are arranged in the control chamber of described well lid, and described first induction module is arranged on the hole wall of described first socket, and the second described sensing alarming module is arranged in the hole wall in described manual operation hole；
Described one-chip computer module includes single-chip microcomputer, switch module and LED display lamp, and the input of described single-chip microcomputer signal is electrically connected with the outfan of outfan, the first induction module outfan, the outfan of the second sensing alarming module and the switch module of described cipher code lock module by wire respectively；The outfan of described single-chip microcomputer signal is electrically connected by motor signal input part, the signal input part of wireless transmit alarm module and the LED display lamp described in wire difference.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, first socket position described in the correspondence of upper surface of described well lid is provided with the first identification groove；Corresponding second socket in described well seat upper edge is provided with the second identification groove.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, the upper end of described control chamber is provided with the first upper cover, and the upper end in described manual operation hole is provided with the second upper cover.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, described mechanism's box and retaining mechanism are all coated with anticorrosive coat.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, the bottom of described push rod housing is provided with gap.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, the outer end of described inserted link uses stainless steel material.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, the inner of described back-moving spring is provided with chuck, and described chuck is fixedly connected on the inner face of described inserted link.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, described control system is provided with independent current source, and described retaining mechanism is provided with independent current source.
A kind of cable theft-prevention well lid the most according to claim 1, is characterized in that, described wireless transmit is reported to the police and is provided with alarm buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620292578.3U CN205530368U (en) | 2016-04-08 | 2016-04-08 | Cable theftproof well lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620292578.3U CN205530368U (en) | 2016-04-08 | 2016-04-08 | Cable theftproof well lid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205530368U true CN205530368U (en) | 2016-08-31 |
Family
ID=56790296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620292578.3U Withdrawn - After Issue CN205530368U (en) | 2016-04-08 | 2016-04-08 | Cable theftproof well lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205530368U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696629A (en) * | 2016-04-08 | 2016-06-22 | 国网山东省电力公司菏泽供电公司 | Cable antitheft well lid |
| CN107035236A (en) * | 2017-06-01 | 2017-08-11 | 云南酷联科技有限公司 | A kind of smart lock of well lid |
| CN115387389A (en) * | 2022-08-31 | 2022-11-25 | 安徽普瑞明精密机械有限公司 | Intelligent well lid with position self-checking system and assembling method thereof |
-
2016
- 2016-04-08 CN CN201620292578.3U patent/CN205530368U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696629A (en) * | 2016-04-08 | 2016-06-22 | 国网山东省电力公司菏泽供电公司 | Cable antitheft well lid |
| CN107035236A (en) * | 2017-06-01 | 2017-08-11 | 云南酷联科技有限公司 | A kind of smart lock of well lid |
| CN115387389A (en) * | 2022-08-31 | 2022-11-25 | 安徽普瑞明精密机械有限公司 | Intelligent well lid with position self-checking system and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20170815 |