CN105649429B - Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock - Google Patents
Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock Download PDFInfo
- Publication number
- CN105649429B CN105649429B CN201610005983.7A CN201610005983A CN105649429B CN 105649429 B CN105649429 B CN 105649429B CN 201610005983 A CN201610005983 A CN 201610005983A CN 105649429 B CN105649429 B CN 105649429B
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- Prior art keywords
- magnet
- chuck
- connecting rod
- lock housing
- lock
- 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.)
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Links
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000004146 energy storage Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
Landscapes
- Earth Drilling (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock, including lock housing, a main shaft is provided with lock housing, the top of main shaft is connected with well lid, the bottom of main shaft is movably equipped with chuck, the stop mechanism for being used for after chuck rotates set angle stopping chuck rotation is provided between chuck and lock housing, chuck connecting rod is movably equipped with lock housing, one end of chuck connecting rod is provided with the jacking block for push card disc spins, the other end of chuck connecting rod is provided with the backing pin for being used for driving chuck connecting rod to rotate, chuck connecting rod is provided with the first magnet of two interval setpoint distances, the second magnet is provided with lock housing.The beneficial effects of the invention are as follows：Kept with magnetic force, unlocked and the stable purpose kept of locking two states to exchange the position of two piece of first magnet to reach by bent angle jag tongue switching, be not required to realize electromagnet, structure is simpler, and avoid because electromagnet is not powered on and the generation of irretentive situation.
Description
Technical field
The present invention relates to a kind of manhole cover locking mechanism, more particularly to applied to the stable holding gear without automatically controlled pattern manhole cover lock
Locking device.
Background technology
Applied to the pattern manhole cover lock on urban duct, in opening or closed mode, the holding of state is very crucial.Pattern manhole cover lock
Failure be nothing but otherwise do not open that otherwise do not lock, or the short life of lock, these are all that well lid manager is reluctant to see
As a result.The implementation of two grades of holdings with opening is pinned, tradition is by way of spring top bead, extension spring, electromagnet
Mode, first two mode are purely mechanic modes, and the life-span is restricted by the life-span of spring, once spring corrosion fracture, the function of lock is just
Failure；Electromagnet mode, belong to automatically controlled mode, the life-span is better than spring, but high expensive with performance.The patent No.
That is mentioned in CN201310325561 and patent No. CN201320460906 utilizes guarantor the characteristics of angle electromagnetic iron to stablize
Hold well lid locking or unlocking condition.If without automatically controlled pattern manhole cover lock, also work(that gear is kept is realized using angle electromagnetic iron
Can, if electromagnet goes wrong, the holding to well lid state can not be realized.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided that one kind is realized is convenient, cost is cheap, it is middle not
Pausing can stablize what is kept, the stable lock for keeping gear being applied to without automatically controlled pattern manhole cover lock shifted gears by double magnet on lock body
Tight device.
In order to reach above-mentioned purpose, the present invention adopts the following technical scheme that：
Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock, including lock housing, one is provided with lock housing
Main shaft, the top of main shaft are connected with well lid, and the bottom of main shaft is movably equipped with chuck, are provided with and are used in card between chuck and lock housing
Stop the stop mechanism of chuck rotation after disc spins set angle, be movably equipped with chuck connecting rod in lock housing, the one of chuck connecting rod
End is provided with the jacking block for stop disc spins, and the other end of chuck connecting rod is provided with the backing pin for being used for driving chuck connecting rod to rotate,
Chuck connecting rod is provided with the first magnet (magnet A and magnet B) of two interval setpoint distances, and the second magnet is provided with lock housing
(magnet C), two the first magnet are respectively cooperating with the second magnet, after chuck connecting rod rotates set angle, first magnet
Attracted each other with the second magnet, finally keep chuck connecting rod position motionless；When chuck connecting rod rotates to other direction, another
First magnet attracts each other with the second magnet, finally keeps chuck connecting rod position motionless.
Further, for circle, the first magnet described in two is located at chuck connecting rod circle at the center of the chuck connecting rod
The outside in region, the polar orientation of two the first magnet are consistent.
Further, emergent lock is additionally provided with the lock housing, emergent lock includes a revolvable connecting rod, connecting rod
One end is provided with bent angle jag dead bolt, and described backing pin coordinates with bent angle jag dead bolt, meet an urgent need lock to a direction rotate when, bent angle
The side of jag dead bolt stirs backing pin and drives the rotation of chuck connecting rod, emergent lock to another direction rotate when, chuck connecting rod is to another
One direction rotates, and bent angle jag dead bolt ensure that emergent lock will not produce interference with static chuck connecting rod, and backing pin is in bent angle
The angle of jag dead bolt internal rotation is identical with the rotational angle of jacking block.
Further, emergent lock is additionally provided with the lock housing, emergent lock includes the pin of a V-shape, described backing pin
Coordinate with pin.
Further, the stop mechanism includes the spacer pin being located in the lock housing, is provided with the inside of described chuck
The gap of one arc, gap coordinate with spacer pin, limit the anglec of rotation of chuck by gap and spacer pin, and then open
Or well lid is pinned, the slewing area of chuck is exactly the angle of arc gap.
Further, an otch is provided with the outward flange of the chuck, otch coordinates with described jacking block, passes through jacking block
Incision is stuck in, facilitates the stop to chuck.
Further, second magnet is fixed by the magnet of L-type and is erected in described lock housing.
Further, the stop mechanism includes the spacer pin being located in the lock housing, is set in described chuck lower surface
There is the opening of an arc, opening coordinates with spacer pin.
Further, it is provided with magnetic receiver on the chuck connecting rod, two compartments is provided with magnetic receiver, the described in two
One magnet is respectively provided in compartment, and perforate is provided with the side wall of magnetic receiver.
Further, it is F2 close to the first magnet of the jacking block and the magnetic force of the second magnet on the chuck connecting rod,
The magnetic force of another first magnet and the second magnet is F1, works as F1>It is locking state during F2；Work as F2>It is open mode during F1
Further, the alignment pin for being used for backstop chuck connecting rod and turning clockwise is provided with the side of the chuck connecting rod.
The present invention operation principle be：With three magnet, the magnetic force of magnet keep opening well lid position realizing or
The holding of closed mode.During locking, rotated by emergent lock and drive bent angle jag dead bolt, stir the backing pin on chuck connecting rod, blocked
Disk connecting rod is together rotated with magnetic receiver, and when magnet B suctions power maximum with magnet C phases, jacking block is withstood on the otch of chuck, locking
Chuck, because the magnetic force of magnet is kept, locking state, which is also stablized, to be kept.During opening, rotated in the opposite direction by emergent lock,
Jag dead bolt is driven, stirs the backing pin on chuck connecting rod, chuck connecting rod together rotates backward with magnetic receiver, overcomes magnet B and magnetic
Iron C magnetic force, when magnet A suctions power maximum with magnet C phases, jacking block departs from the otch of chuck, chuck link rotatable, passes through lock
The hand handle kind tool in external face can indirect rotating chuck, lock body be in open mode, due to the magnetic force holding of magnet, open shape
State, which is also stablized, to be kept.
The beneficial effects of the invention are as follows：
1) keep with magnetic force, unlocked by bent angle jag tongue switching to exchange the position of two piece of first magnet to reach
With the stable purpose kept of locking two states, it is not required to realize electromagnet, structure is simpler, and avoids because of electromagnet not
It is powered and the generation of irretentive situation.
2) coordinated by arc opening on chuck and spacer pin, realized to the spacing of chuck, then the magnetic force pair for passing through magnet
Well lid is opened or the holding of locking state, realizes stop of the chuck connecting rod jacking block to chuck otch, ensures that the shape of chuck
State.
3) magnet B and magnet C magnetic force F1 when shifting gears, magnetic force F2, F1 and F2 between magnet A and magnet C are that this disappears that
Long variation relation, works as F1>During F2, for locking；Work as F2>During F1, to open, due to the inertia of chuck link rotatable, F1=F2
Moment will not stop, so that it is guaranteed that, the phenomenon that does not stop among the gearshift of this device.
Brief description of the drawings
Fig. 1 is local shaft side figure under lock body locking state of the invention；
Fig. 2 is partial top view under lock body locking state of the invention；
Fig. 3 is partial top view under lock body unlocking initial state of the invention；
Fig. 4 is partial top view under lock body unlocking done state of the invention；
In figure, 1. main shafts, 2. nuts, 3. lock washers, 4. spacer pins, 5. chucks, 6. jacking blocks, 7. chuck connecting rods, 8. spiral shells
Nail, 9. alignment pins, 10. magnetic receivers, 11. nuts, 12. magnet fixed mounts, 13. backing pins, 14. bent angle jag dead bolts, 15. is emergent
Lock, 16. lock housings, 17. screws, 18. pressing plates, 19. bearings, 20. magnet As, 21. magnet Bs, 22. energy storage screws, 23. magnet C.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description.
Embodiment 1
Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock, including lock housing 16, it is provided with lock housing 16
One main shaft 1, the top of main shaft 1 are connected with well lid, and the bottom of main shaft 1 is movably equipped with chuck 5, between chuck 5 and lock housing 16
Provided with the stop mechanism rotated for stopping chuck 5 after chuck 5 rotates set angle, chuck company is movably equipped with lock housing 16
Bar 7, one end of chuck connecting rod 7, which is provided with, is used for the jacking block 6 that stop chuck 5 rotates, and the other end of chuck connecting rod 7, which is provided with, is used for band
The backing pin 13 of the dynamic rotation of chuck connecting rod 7, chuck connecting rod 7 are provided with the first magnet (magnet A 20 and the magnetic of two interval setpoint distances
Iron B21), the second magnet (magnet C23) is provided with lock housing 16, after chuck connecting rod 7 rotates set angle, first magnet
Attracted each other with the second magnet, can finally keep the position of chuck connecting rod 7 motionless；When chuck connecting rod 7 rotates to other direction, separately
One the first magnet attracts each other with the second magnet, can finally keep the position of chuck connecting rod 7 motionless.Second magnet passes through L
The magnet of type, which is fixed, to be erected in described lock housing 16.
For circle, the first magnet described in two is located at the outer of the border circular areas of chuck connecting rod 7 at the center of the chuck connecting rod 7
Side, the polar orientation of two the first magnet are consistent.
It is additionally provided with emergent lock 15 in the lock housing 16, emergent lock 15 includes a revolvable connecting rod, and the one of connecting rod
End is provided with bent angle jag dead bolt 14, and described backing pin 13 coordinates with bent angle jag dead bolt 14, and lock 15 of meeting an urgent need rotates to a direction
When, the side of bent angle jag dead bolt 14 stirs backing pin 13 and drives chuck connecting rod 7 to rotate, and lock 15 of meeting an urgent need rotates to another direction
When, chuck connecting rod 7 rotates to another direction.
The stop mechanism includes the spacer pin 4 being located in the lock housing 16, and an arc is provided with the described inner side of chuck 5
The gap of shape, gap coordinate with spacer pin 4, limit the anglec of rotation of chuck 5 by gap and spacer pin 4, and then open well
Lid.
An otch is provided with the outward flange of the chuck 5, otch coordinates with described jacking block 6, is stuck in and cuts by jacking block 6
At mouthful, the promotion to chuck 5 is facilitated.
Magnetic receiver 10 is provided with the chuck connecting rod 7, the first magnet described in two is located in magnetic receiver 10, in magnet
It is provided with the side wall of seat in wrongly installed first magnet, for disclosing the perforate of the first magnet.
Described chuck connecting rod 7 is provided with magnetic receiver 10 above, by screw 8 that both are fixed together.Described magnet
Seat 10 is provided with two larger stepped holes, and magnet A 20 and magnet B 21 are placed respectively in two stepped holes.In magnetic receiver 10
Magnet A 20 and magnet B 21, are fixed in stepped hole with glue, towards the direction at the center of chuck connecting rod 7, be easy to place magnet A 20 with
Magnet B 21；Outside side is small perforate, is easy to assemble the hole for disclosing the first magnet during the error of magnet direction.
Described magnet fixed mount 12 is fixed in lock housing 16 by nut 11, and lock housing 16 is provided with energy storage screw 22, spiral shell
Mother 11 coordinates with energy storage screw 22.Its inner set magnet C23 of magnet fixed mount 12 and use gluing knot.
Polar orientation of the described magnet A 20, magnet B 21 in hole is consistent, is the direction that attracts each other with magnet C23.
The design requirement of magnet A 20 and the installation site angle of magnet B 21：When the jacking block 6 on chuck connecting rod 7 is in 5 otch of chuck, magnetic
Iron B21 is just neat with magnet C23 punchings；When chuck connecting rod 7 turns to it is tangent with alignment pin 9 when, magnet A 20 just with magnet C23
Punching is neat.Because the suction of magnet, chuck connecting rod 7 maintains the stabilization of state.
The present invention use three magnet, using magnet magnetic force holding the characteristics of realize.When well lid locking (such as Fig. 1,
Fig. 2), rotated by emergent lock 15 and drive jag dead bolt, stir the backing pin on chuck connecting rod 7, chuck connecting rod 7 and magnetic receiver 10 1
With rotating, when magnet B 21 is rushed with magnet C23 phases, now during suction maximum, jacking block 6 is withstood on the otch of chuck 5, locking clamp
Disk 5, because the magnetic force of magnet is kept, locking state, which is also stablized, to be kept.
During opening (as shown in Figure 3), rotated in the opposite direction by emergent lock 15, drive jag dead bolt, stir chuck
Backing pin 13 on connecting rod 7, chuck connecting rod 7 together rotate backward with magnetic receiver 10, overcome the magnetic force of magnet B 21 and magnet C23, when
When magnet A 20 rushes simultaneously suction maximum with magnet C23 phases, jacking block 6 departs from the otch of chuck 5, now can be with rotating chuck 5.Pass through
Hand handle kind tool outside lock body can rotating chuck 5 indirectly, lock body is at open mode (such as Fig. 4), due to magnet
Magnetic force is kept, and open mode, which is also stablized, to be kept.
Embodiment 2
Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock, including lock housing 16, it is provided with lock housing 16
One main shaft 1, the top of main shaft 1 are connected with well lid, and the bottom of main shaft 1 is movably equipped with chuck 5, between chuck 5 and lock housing 16
Provided with the stop mechanism rotated for stopping chuck 5 after chuck 5 rotates set angle, chuck company is movably equipped with lock housing 16
Bar 7, one end of chuck connecting rod 7, which is provided with, is used for the jacking block 6 that stop chuck 5 rotates, and the other end of chuck connecting rod 7, which is provided with, is used for band
The backing pin 13 of the dynamic rotation of chuck connecting rod 7, chuck connecting rod 7 are provided with the first magnet (magnet A 20 and the magnetic of two interval setpoint distances
Iron B21), the second magnet (magnet C23) is provided with lock housing 16, after chuck connecting rod 7 rotates set angle, first magnet
Attracted each other with the second magnet, can finally keep the position of chuck connecting rod 7 motionless；When chuck connecting rod 7 rotates to other direction, separately
One the first magnet attracts each other with the second magnet, can finally keep the position of chuck connecting rod 7 motionless, second magnet passes through L
The magnet of type, which is fixed, to be erected in described lock housing 16.
For circle, the first magnet described in two is located at the outer of the border circular areas of chuck connecting rod 7 at the center of the chuck connecting rod 7
Side, the polar orientation of two the first magnet are consistent.
Emergent lock 15 is additionally provided with the lock housing, lock 15 of meeting an urgent need includes the pin of a V-shape, described backing pin 13 and gear
Bar coordinates.
An otch is provided with the outward flange of the chuck 5, otch coordinates with described jacking block 6, is stuck in and cuts by jacking block 6
At mouthful, the stop to chuck 5 is facilitated.
The stop mechanism includes the spacer pin 4 being located in the lock housing, and an arc is provided with the described lower surface of chuck 5
The opening of shape, opening coordinate with spacer pin 4.
Magnetic receiver 10 is provided with the chuck connecting rod 7, the first magnet described in two is located in magnetic receiver 10, in magnet
It is provided with the side wall of seat 10 in wrongly installed first magnet, for disclosing the perforate of the first magnet.
Working method is identical with the mode in embodiment 1.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock, including lock housing, it is characterised in that in lock housing
Provided with a main shaft, the top of main shaft is connected with well lid, and the bottom of main shaft is movably equipped with chuck, is provided between chuck and lock housing
For stopping the stop mechanism of chuck rotation after chuck rotates set angle, chuck connecting rod, chuck are movably equipped with lock housing
One end of connecting rod is provided with the jacking block for stop disc spins, and the other end of chuck connecting rod, which is provided with, to be used to drive chuck connecting rod to revolve
The backing pin turned, chuck connecting rod are provided with the first magnet of two interval setpoint distances, and the polar orientation of two the first magnet is consistent,
The second magnet is provided with lock housing, two the first magnet are respectively cooperating with the second magnet.
2. locking device as claimed in claim 1, it is characterised in that the center of the chuck connecting rod is circle, described in two
The first magnet be located at the outside of chuck connecting rod border circular areas.
3. locking device as claimed in claim 1 or 2, it is characterised in that emergent lock is additionally provided with the lock housing, lock bag of meeting an urgent need
A revolvable connecting rod is included, one end of connecting rod is provided with bent angle jag dead bolt, and described backing pin is matched somebody with somebody with bent angle jag dead bolt
Close.
4. locking device as claimed in claim 1 or 2, it is characterised in that emergent lock is additionally provided with the lock housing, lock bag of meeting an urgent need
The pin of a V-shape is included, described backing pin coordinates with pin.
5. locking device as claimed in claim 1, it is characterised in that the stop mechanism includes the limit being located in the lock housing
Position pin, is provided with the gap of an arc on the inside of described chuck, and gap coordinates with spacer pin.
6. locking device as claimed in claim 1, it is characterised in that be provided with an otch in the outward flange of the chuck, cut
Mouth coordinates with described jacking block.
7. locking device as claimed in claim 1, it is characterised in that second magnet is fixed by the magnet of L-type and set up
In described lock housing, magnet fixed mount fixes the second magnet while be fixed in the lock housing on another side.
8. locking device as claimed in claim 1, it is characterised in that the stop mechanism includes the limit being located in the lock housing
Position pin, the opening of an arc is provided with described chuck lower surface, and opening coordinates with spacer pin.
9. the locking device as described in claim 1 or 7, it is characterised in that magnetic receiver, magnet are provided with the chuck connecting rod
Two compartments are provided with seat, the first magnet described in two is respectively provided in compartment, and perforate is provided with the side wall of magnetic receiver.
10. locking device as claimed in claim 1 or 2, it is characterised in that close to the jacking block on the chuck connecting rod
The magnetic force of first magnet and the second magnet is F2, and the magnetic force of another first magnet and the second magnet is F1, works as F1>During F2, it is
Locking state；Work as F2>It is open mode during F1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005983.7A CN105649429B (en) | 2016-01-06 | 2016-01-06 | Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610005983.7A CN105649429B (en) | 2016-01-06 | 2016-01-06 | Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105649429A CN105649429A (en) | 2016-06-08 |
| CN105649429B true CN105649429B (en) | 2018-01-09 |
Family
ID=56491593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610005983.7A Active CN105649429B (en) | 2016-01-06 | 2016-01-06 | Applied to the stable locking device for keeping gear without automatically controlled pattern manhole cover lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105649429B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443205A (en) * | 2020-10-29 | 2021-03-05 | 山东每联电子电器有限公司 | Anti-theft three-shaft lock structure for manhole cover |
| CN113445549B (en) * | 2021-06-30 | 2022-09-27 | 南京荣泰电气自动化有限公司 | Intelligent well lid adopting double-position confirmation and pluggable communication module |
| CN114837497B (en) * | 2022-03-25 | 2023-08-15 | 康威通信技术股份有限公司 | Ventilation booth shutter electric control lock capable of preventing misoperation and working method thereof |
| CN115217153A (en) * | 2022-07-25 | 2022-10-21 | 康威通信技术股份有限公司 | Well lid and well lid electronic lock state monitoring device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2316120B (en) * | 1996-08-05 | 2000-05-17 | Fox Thomas Co Ltd | An electromagnetic lock |
| CN102537341A (en) * | 2011-12-26 | 2012-07-04 | 联合汽车电子有限公司 | Neutral position sensor |
| CN202359887U (en) * | 2011-11-16 | 2012-08-01 | 山东康威通信技术股份有限公司 | Emergency escaping device in well lid lock |
| CN202380827U (en) * | 2011-11-15 | 2012-08-15 | 山东康威通信技术股份有限公司 | Locked and unlocked state keeping device for manhole cover lock |
| CN203412404U (en) * | 2013-07-30 | 2014-01-29 | 山东康威通信技术股份有限公司 | Device applied to locking and unlocking of manhole cover lock and stably maintaining locking and unlocking |
-
2016
- 2016-01-06 CN CN201610005983.7A patent/CN105649429B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2316120B (en) * | 1996-08-05 | 2000-05-17 | Fox Thomas Co Ltd | An electromagnetic lock |
| CN202380827U (en) * | 2011-11-15 | 2012-08-15 | 山东康威通信技术股份有限公司 | Locked and unlocked state keeping device for manhole cover lock |
| CN202359887U (en) * | 2011-11-16 | 2012-08-01 | 山东康威通信技术股份有限公司 | Emergency escaping device in well lid lock |
| CN102537341A (en) * | 2011-12-26 | 2012-07-04 | 联合汽车电子有限公司 | Neutral position sensor |
| CN203412404U (en) * | 2013-07-30 | 2014-01-29 | 山东康威通信技术股份有限公司 | Device applied to locking and unlocking of manhole cover lock and stably maintaining locking and unlocking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105649429A (en) | 2016-06-08 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Locking device used for electronic-control-free well lid lock and having stable gear maintaining function Effective date of registration: 20190617 Granted publication date: 20180109 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co., Ltd. Pledgor: Shandong Conwell Communication Technology Co., Ltd. Registration number: 2019370000128 |
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Date of cancellation: 20200615 Granted publication date: 20180109 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG KANGWEI COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: 2019370000128 |
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Denomination of invention: Locking device used for electronic-control-free well lid lock and having stable gear maintaining function Effective date of registration: 20200622 Granted publication date: 20180109 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG KANGWEI COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: Y2020980003353 |
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| CP03 | Change of name, title or address | ||
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Address after: 250101 A203, block F, entrepreneurship square, Qilu Software Park, No.1 Shunhua Road, high tech Development Zone, Jinan City, Shandong Province Patentee after: Conway Communication Technology Co., Ltd Address before: 250101 Qilu Software Park, No. 1 Shunhua Road, Jinan High-tech Development Zone, Shandong Province, A 203 Patentee before: SHANDONG KANGWEI COMMUNICATION TECHNOLOGY Co.,Ltd. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20210617 Granted publication date: 20180109 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG KANGWEI COMMUNICATION TECHNOLOGY Co.,Ltd. Registration number: Y2020980003353 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: Locking device for stable gear holding without electric control well cover lock Effective date of registration: 20210625 Granted publication date: 20180109 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: Conway Communication Technology Co., Ltd Registration number: Y2021370000076 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20220620 Granted publication date: 20180109 Pledgee: Overpass Branch of Jinan Rural Commercial Bank Co.,Ltd. Pledgor: Conway Communication Technology Co.,Ltd. Registration number: Y2021370000076 |