CN207617853U - A kind of Intelligent stop knee and the wheelchair using the Intelligent stop knee - Google Patents

A kind of Intelligent stop knee and the wheelchair using the Intelligent stop knee Download PDF

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Publication number
CN207617853U
CN207617853U CN201720596236.5U CN201720596236U CN207617853U CN 207617853 U CN207617853 U CN 207617853U CN 201720596236 U CN201720596236 U CN 201720596236U CN 207617853 U CN207617853 U CN 207617853U
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CN
China
Prior art keywords
locking plate
closing piece
wheelchair
intelligent stop
locking
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Expired - Fee Related
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CN201720596236.5U
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Chinese (zh)
Inventor
金辉
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Individual
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Individual
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Publication date
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Publication of CN207617853U publication Critical patent/CN207617853U/en
Expired - Fee Related legal-status Critical Current
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/10Protocols in which an application is distributed across nodes in the network
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62HCYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H3/00Separate supports or holders for parking or storing cycles
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/42Devices or arrangements peculiar to garages, not covered elsewhere, e.g. securing devices, safety devices, monitoring and operating schemes; centering devices
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07BTICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/06Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
    • G07B15/063Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/50Network services
    • H04L67/60Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Architecture (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Finance (AREA)
  • Business, Economics & Management (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Human Computer Interaction (AREA)
  • Lock And Its Accessories (AREA)

Abstract

The utility model provides a kind of Intelligent stop knee, including parking stake pile body, the first locking plate and closing piece, the closing piece and the first locking plate are used in combination, first locking plate is connected with parking stake pile body, closing piece is mounted on locked object, it is locked in the closing piece that first locking plate is inserted on locked object, the first locking plate is extracted out to open out of closing piece on locked object.A kind of wheelchair of above-mentioned Intelligent stop knee is also provided, the closing piece is installed on wheelchair, and first locking plate is used in combination with closing piece, realizes the locking of wheelchair and Intelligent stop knee.The beneficial effects of the utility model are, provide a kind of Intelligent stop knee, it can carry out the locking management of bicycle, wheelchair and automobile etc., also provide a kind of wheelchair using the parking stake, can be locked to wheelchair prevents from disorderly pushing away, multiple wheelchairs can be put together again, save the confined space of the mechanisms such as hospital, geriatric nursing home and community, convenient for management.

Description

A kind of Intelligent stop knee and the wheelchair using the Intelligent stop knee
Technical field
The utility model is related to share equipment technical field, more particularly to a kind of Intelligent stop knee and the intelligence is used The wheelchair of parking stake.
Background technology
With the development of science and technology there are the shared services such as shared bicycle, shared automobile, shared charger baby, to people's Life is greatly improved, and shared equipment one of has it being the confusion of management at present.
With the gradual exacerbation of China's ageing phenomenon, the social security of elderly population and service, especially medical system It is comprehensive improve need to obtain the expenditure of new and high technology.It was found that the work in most of hospitals all without riding instead of walk for the elderly Tool, furthermore, most of hospitals need the patient to see a doctor especially more now, are required for being lined up from registering to final treatment, this is right It is very inconvenient for the old man of not corresponding walking-replacing tool.
For this purpose, some people just carry some walking-replacing tools such as wheelchair etc., but be also in this way and its inconvenience, this needs old People, always with these walking-replacing tools, needs constantly to shift from one place to another, take up and down, this is for youth on the road of hospital back and forth All it is very cumbersome thing for people, is still more sick the elderly.
Currently, in geriatric nursing home and community etc., there is also the situations for needing wheelchair, however, current facility can not Meets the needs of to wheelchair.
Utility model content
The purpose of this utility model is to provide a kind of Intelligent stop knee, to solve the shared chaotic problem of management set, separately Outside, a kind of wheelchair using the Intelligent stop knee is also provided, is seen a doctor, in geriatric nursing home and community in hospital to meet people Whens activity etc., use, regulatory requirement to wheelchair.
For realization the purpose of this utility model, the utility model provides a kind of Intelligent stop knee, including the stake pile body that stops, First locking plate and closing piece, the closing piece and the first locking plate are used in combination, and the first locking plate is connected with parking stake pile body, closing piece peace On locked object, locked in the closing piece that the first locking plate is inserted on locked object, the first locking plate is out of, closing piece on locked object Extraction is unlatching.
Correspondingly, a kind of wheelchair of above-mentioned Intelligent stop knee is also provided, the closing piece is installed on wheelchair, and described first Locking plate is used in combination with closing piece, realizes the locking of wheelchair and Intelligent stop knee.
Compared with prior art, the beneficial effects of the utility model are to provide a kind of Intelligent stop knee, can be carried out certainly The locking management of driving, wheelchair and automobile etc., also provides a kind of wheelchair using the parking stake, can be locked to wheelchair It prevents from disorderly pushing away, and multiple wheelchairs can be put together, save the confined space of the mechanisms such as hospital, geriatric nursing home and community, Convenient for management.
Description of the drawings
Fig. 1 show the structural schematic diagram of the Intelligent stop knee pile body of the application;
Fig. 2 show the structural schematic diagram of the wheelchair of the application;
Fig. 3 show the structural schematic diagram of the closing piece of the application, locking plate;
Fig. 4 show the structural schematic diagram of the application eccentric block;
In figure, 1- wheels, 2- closing pieces, 3- wheelchair frame bodies, the second locking plates of 4-, 5- chains, 6- eccentric blocks, the first springs of 7-, 8- limited blocks, 9- driving motors, the second control units of 10-, 11- second springs, 12- infrared sensors, 13-RFID chips, 14- First locking plate, 15- parking stake pile bodies.
Specific implementation mode
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that this place The specific embodiment of description is only used to explain the utility model, is not used to limit the utility model.
It should be noted that " connection " described herein and the word for expressing " connection ", as " being connected ", " connected " etc. was both directly connected to another component including a certain component, and also passed through other component and another portion including a certain component Part is connected.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.
As shown in Figure 1, this application provides a kind of Intelligent stop knee, including parking stake pile body 15, the first locking plate 14 and lock Block 2, the closing piece 2 and the first locking plate 14 are used in combination, and the first locking plate 14 is connected with parking stake pile body 15, and closing piece 2 is installed On locked object, locked in the closing piece 2 that the first locking plate 14 is inserted on locked object, closing piece of first locking plate 14 from locked object Extraction is unlatching in 2.
Above-mentioned locked object can be bicycle, automobile, wheelchair etc..
In preferred embodiment mode, the parking stake pile body is mobile or fixed, and parking stake pile body can root According to actual demand and other factors that need to be considered, moves position or do not move position.
Further include multiple second locking plates 4,14 structure phase of the second locking plate 4 and the first locking plate in preferred embodiment mode Together, second locking plate 4 is installed on locked object, is used in combination with the closing piece 2 on other locked objects.
It should be noted that parking stake pile body can connect one or more first locking plates 14, the first locking plate and locked object Connection, locked object wait for that institute's object is connect with other, for example, parking stake pile body is connect with the first locking plate, are provided on the first locked object Closing piece and the second locking plate, the first locking plate are connect with the closing piece on the first locked object, the second locking plate and first on the second locked object Closing piece connection on locked object, and so on, hereby, it is achieved that a parking stake pile body can lock multiple locked objects.
In order to realize to parking stake and wait for the management of institute's object, with the development of technology of Internet of things, multiple technologies at Under ripe background, the first control unit is installed on the parking stake pile body, the second control list is installed in any one closing piece Member is provided with Quick Response Code on closing piece, and mobile terminal is connected with Cloud Server, Quick Response Code described in mobile scanning terminal, to Cloud Server communicates, and Cloud Server is wirelessly connected with first control unit, and Cloud Server is opened to the transmission of the first control unit Lock instruction, the first control unit send out unlocking signal to the second control unit, and the control of the second control unit is unlocked, and locking plate is from closing piece Interior disengaging.
Mobile terminal can be equipment with barcode scanning function and can installing application program, such as mobile phone, pad.
In preferred embodiment mode, first control unit includes the first wireless communication module, the second channel radio Believe that module and GPS positioning module, the first MCU module and the first power module for above-mentioned module for power supply, the second control are single Member includes the second MCU module, third wireless communication module, second power supply module, RFID read-write module, is provided in the locking plate RFID chip.
First power module can be that external power supply may be battery.
It should be noted that the first wireless communication module is communicated for the first control unit with Cloud Server, can be to work as More mature 2G, 3G, 4G and 5G communication component of preceding technology, the second wireless communication module are used for the first control unit and closing piece The modules such as bluetooth, NFC, the first wireless communication module, the second radio communication mold is preferably used in communication, the second wireless communication module Block and GPS positioning module are connected with the first MCU module;Third wireless communication module is logical for closing piece and the first control unit The modules such as bluetooth, NFC, the first wireless communication module, the second wireless communication module is preferably used in letter, third wireless communication module And GPS positioning module is connected with the first MCU module;Second MCU module, third wireless communication module, RFID read-write module It is connected with second power supply module, third wireless communication module, RFID read-write module and the second MCU module communicate to connect, described It is provided with RFID chip in locking plate, is used in combination with RFID read-write module.
In preferred embodiment mode, it is provided with fore shaft on the closing piece 2, the fore shaft shape and size and described the One locking plate 14 and the second locking plate 4 are used in combination, at least provided with a position limiting structure in fore shaft, first locking plate 14 and the Two locking plates 4 are inserted into fore shaft, and the locking and unlatching of the second locking plate 4 and the first locking plate 14 are carried out by the position-limit mechanism.
In fore shaft at least provided with a position limiting structure or as shown in figure 3, two symmetrical configurations of setting position limiting structure, The position limiting structure includes the opening being arranged on the side wall of socket, limited block 8, the first spring 7, driving motor 9, eccentric block 6, limit One end of position block is exposed from the opening, and limited block is arcwall face towards the side of opening, and the other side is to face directly, limited block 8 The other end be connected with the first spring 7, and be provided with convex block, eccentric block 6 and convex block phase described in the output axis connection of driving motor 9 Connection, the most inner side of socket are provided with second spring 11, and the top of the locking plate 4 is contacted with the second spring 11;Correspondingly, Notch identical with position limiting structure quantity, and the shape of notch and limited block 8 are provided on the first locking plate 14 and the second locking plate 4 The shape exposed from the opening of one end match.It is inserted into fore shaft for the ease of the first locking plate 14 and the second locking plate 4, institute Two angles for stating 4 front end of locking plate are fillet.The fore shaft most inner side is provided with infrared sensor, the infrared sensor and MCU, Power module is connected.
It should be noted that the closing piece and/or locking plate in the application can be connect by chain with locked object or parking stake, The chain can have elasticity.
The application is managed Intelligent stop knee by Cloud Server, the unlatching etc. to the state recording, lock of locked object, Mike can also be set on the closing piece, and the Mike is connected with the MCU, power module.
GPS module, for being positioned to parking stake, timing reports the state of oneself and position to believe to Cloud Server Breath.
Locking flow:
Include the locking process with the process of the first locking plate locking in parking stake and with the second locking plate on locked object,
(1) process of the first locking plate locking and in parking stake:Some first locking plate is inserted into the closing piece on the first locked object Fore shaft, the first locking plate front end both sides are to limited block side pressure so that limited block is inserted to both sides transverse shifting, the first locking plate Enter, when the position of the first locking plate notch is corresponding to the portion that limited block exposes, limited block is caught in the first locking plate and lacks Mouthful, stop being inserted into, at this point, the first locking plate of second spring pair forms elastic force, the first spring forms elastic force to limited block so that First locking plate can not detach, meanwhile, infrared sensor detect the first locking plate distance be more than predetermined threshold value after, to third MCU module send locking signal, RFID read-write module read locking plate on RFID chip content, content be the first locking plate only One id, and the id is sent to the 3rd MCU, the 3rd MCU are by id and locking states, the unique id for the locked object that the closing piece is arranged Etc. information parking stake is sent to by third wireless communication module, parking stake communicates with Cloud Server data and deposits above-mentioned data Storage is got up so that parking stake is associated with locked object, if at this point, the locked object of the locking is in charging state, stopped Only charging deducts the fee automatically according to time or number, and Cloud Server is fed back to the mobile terminal for the locked object for using the locking Information;
(2) the locking process of the second locking plate and on locked object:The second locking plate being arranged on above-mentioned locked object is inserted into the The fore shaft of closing piece on two locked objects, the second locking plate front end both sides are to limited block side pressure so that limited block to both sides transverse shifting, Second locking plate is inserted into, when the position of the second locking plate notch is corresponding to the portion that limited block exposes, limited block It is caught in the second locking plate notch, stops being inserted into, at this point, the second locking plate of second spring pair forms elastic force, the first spring is to limited block Forming elastic force so that the second locking plate can not detach, meanwhile, the infrared sensor being arranged in fore shaft detects the second lock The distance of piece sends locking signal, RFID read-write module is read on the second locking plate more than after predetermined threshold value to third MCU module The content of RFID chip, content be unique id of the second locking plate, and the id be sent to the 3rd MCU, and the 3rd MCU second locks this The information such as the id and locking states of piece, unique id of the second locked object that the closing piece is arranged are sent out by third wireless communication module It is sent to parking stake, parking stake communicates with Cloud Server data and stores above-mentioned data so that parking stake is locked with second Object is associated, if at this point, the locked object of the locking is in charging state, stopping charging, according to time or number, certainly It is dynamic to deduct the fee, mobile terminal feedback information of the Cloud Server to the locked object for using the locking;
In above-mentioned flow, for the ease of the management to locked object, the one of the first locking plate concatenation is also recorded in Cloud Server The sequencing of a or multiple locked objects, i.e., on a certain chain, the distance of locked object distance parking stake such as directly connects with stake of stopping It connects, or, being connect with parking stake by locked object.
Open flow:
After the Quick Response Code being arranged on a certain locked object of mobile scanning terminal, application program app can be entered, by applying journey Sequence app is communicated with Cloud Server, directly can also be sent request to Cloud Server by other softwares with barcode scanning function and be opened Open the request of lock, Cloud Server records the information of the user, to parking stake the first control unit send open command, first It after MCU module receives order, is communicated with the second control unit of closing piece, the second control unit controls driving motor, driving motor It can rotate a circle, eccentric block is illustrated in figure 4 since the output shaft of driving motor is connected with, in the rotation, limit Position block at least moves inward completely into opening so that it is not limited to the second or first locking plate, at this point, due to The elastic force of second spring acts on so that and the first locking plate or the pop-up of the second locking plate, limited block reset after driving motor rotates a circle, Locked object can use, also, start charging.
Further include judging that mobile terminal is sent before Cloud Server sends open command to parking the first control unit of stake Locked object information the step of, judge whether the locked object of scanning input is the outermost end that links on a certain first locking plate of stake of stopping A locked object, if so, send open command, if it is not, then remind scanning input outermost end locked object.
Disclosed herein as well is a kind of wheelchairs using above-mentioned Intelligent stop knee, and the closing piece is installed on wheelchair, described First locking plate is used in combination with closing piece, realizes the locking of wheelchair and Intelligent stop knee.
Wheelchair is one kind of above-mentioned locked object, and all situations can refer to above-mentioned.
Although each conception of species has already been described in detail, it will be appreciated by a person skilled in the art that for the various of those concepts What modifications and substitutions can be achieved under the spirit disclosed by the utility model integrally instructed.Those skilled in the art are with general Logical technology can realize the utility model illustrated in detail in the claims without undue experimentation.It can be with Understand, disclosed specific concept is merely illustrative, is not intended to limit the scope of the utility model, this practicality is new The range of type is determined by the full scope of the appended claims and its equivalent program.

Claims (10)

1. a kind of Intelligent stop knee, which is characterized in that including parking stake pile body, the first locking plate and closing piece, the closing piece and first Locking plate is used in combination, and the first locking plate is connected with parking stake pile body, and closing piece is mounted on locked object, and the insertion of the first locking plate is locked It is locked in closing piece on object, the first locking plate is extracted out to open out of closing piece on locked object.
2. a kind of Intelligent stop knee according to claim 1, which is characterized in that the parking stake pile body is mobile or solid Fixed.
3. a kind of Intelligent stop knee according to claim 2, which is characterized in that further include multiple second locking plates, the second lock Piece and the first lock plate structure are identical, and second locking plate is installed on locked object, and being matched with the closing piece on other locked objects makes With.
4. a kind of Intelligent stop knee according to claim 3, which is characterized in that be equipped with first on the parking stake pile body Control unit is equipped with the second control unit in closing piece, Quick Response Code is provided on closing piece, mobile terminal is connected with Cloud Server It connects, Quick Response Code described in mobile scanning terminal, to be communicated with Cloud Server, Cloud Server wirelessly connects with first control unit It connecing, Cloud Server sends unlocking instruction to the first control unit, and the first control unit sends out unlocking signal to the second control unit, The control of second control unit is unlocked, and locking plate is detached from out of closing piece.
5. a kind of Intelligent stop knee according to claim 4, which is characterized in that first control unit includes the first nothing Line communication module, the second wireless communication module and GPS positioning module, the first MCU module and be the of above-mentioned module for power supply One power module, the second control unit include the second MCU module, third wireless communication module, second power supply module, RFID read-write Module is provided with RFID chip in the locking plate.
6. a kind of Intelligent stop knee according to claim 1, which is characterized in that fore shaft is provided on the closing piece, it is described Fore shaft shape is used in combination with size and first locking plate, at least provided with a position limiting structure in fore shaft, described first Locking plate is inserted into fore shaft, and the locking and unlatching of locking plate are carried out by the position limiting structure.
7. a kind of Intelligent stop knee according to claim 6, which is characterized in that the position limiting structure includes on fore shaft side wall One end of the opening of setting, limited block, the first spring, driving motor, eccentric block, limited block is exposed from the opening, limit Block is arcwall face towards the side of opening, and the other side is to face directly, and the other end of limited block is connected with the first spring, and is provided with convex Block, eccentric block described in the output axis connection of driving motor are connected with convex block, and the most inner side of socket is provided with second spring, described The top of locking plate is contacted with the second spring, driving motor.
8. a kind of Intelligent stop knee according to claim 7, which is characterized in that the fore shaft most inner side is provided with infrared biography Sensor, the infrared sensor are connected with MCU, power module.
9. a kind of wheelchair using the Intelligent stop knee as described in any one of claim 1-8, which is characterized in that the closing piece It is installed on wheelchair, first locking plate is used in combination with closing piece, realizes the locking of wheelchair and Intelligent stop knee.
10. the wheelchair according to claim 9 using Intelligent stop knee, which is characterized in that further include multiple second locking plates, Second locking plate and the first lock plate structure are identical, and second locking plate is installed on wheelchair, is matched with the closing piece on other wheelchairs It uses.
CN201720596236.5U 2017-05-16 2017-05-25 A kind of Intelligent stop knee and the wheelchair using the Intelligent stop knee Expired - Fee Related CN207617853U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2017205429012 2017-05-16
CN201720542901 2017-05-16

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Publication Number Publication Date
CN207617853U true CN207617853U (en) 2018-07-17

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Application Number Title Priority Date Filing Date
CN201720596236.5U Expired - Fee Related CN207617853U (en) 2017-05-16 2017-05-25 A kind of Intelligent stop knee and the wheelchair using the Intelligent stop knee
CN201710380763.7A Pending CN107231416A (en) 2017-05-16 2017-05-25 A kind of Intelligent stop knee system and sharing method
CN201720597419.9U Expired - Fee Related CN207620553U (en) 2017-05-16 2017-05-25 A kind of intelligence chain lock and the wheelchair with intelligent chain lock

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Application Number Title Priority Date Filing Date
CN201710380763.7A Pending CN107231416A (en) 2017-05-16 2017-05-25 A kind of Intelligent stop knee system and sharing method
CN201720597419.9U Expired - Fee Related CN207620553U (en) 2017-05-16 2017-05-25 A kind of intelligence chain lock and the wheelchair with intelligent chain lock

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CN109118619A (en) * 2018-07-17 2019-01-01 雄鹏资产管理(上海)有限公司 A kind of method for unlocking and system of shared device
CN108952372B (en) * 2018-08-10 2023-02-07 神思(山东)医疗信息技术有限责任公司 Lockset for intelligent wheelchair and use method
CN111508089A (en) * 2020-04-22 2020-08-07 西咸新区沃克智能科技有限公司 Intelligent charging management device for parking lot
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CN107231416A (en) 2017-10-03
CN207620553U (en) 2018-07-17

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