CN209568808U - A kind of shopping lock - Google Patents

Abstract

The utility model creation discloses a kind of shopping lock, including key, is being equipped with clamping portion on the key；Lock body is equipped with the keyhole being inserted into for key on lock body；Connecting line, one end are connect with lock body, and the other end is connect with key, and the length guarantee of connecting line can not be such that key is inserted into the keyhole for the lock body connecting with itself；Lock tongue is arranged in lock body and is configured in the movement for that can move into clamping portion to stop key, or can remove clamping portion to discharge the movement of key；Lock tongue drive member, it is arranged in lock body, it includes electric drive and switching component, and the input terminal for component of transferring and the movement portion of driver connect, and the output end for component of transferring connects lock tongue, the switching component, which is configured in, to be converted to the power output of driver so that lock tongue moves in and out the driving force of clamping portion, shopping lock does not need mortgage coin, due to using electrical control mechanism, it is possible to reduce the mechanical mechanism of electronic lock, it is suitble to longtime running, it is easy to maintain.

Description

A kind of shopping lock

Technical field

The invention belongs to internet of things field, and in particular to electronic lock, the electricity being particularly wall-mounted on shopping cart Son lock.

Background technique

Shopping lock uses Coin-feeding lock at present, and the patented invention-creation if number of patent application is 200420059445.9 discloses A kind of purchase vehicle coin lock, the patent of invention document that number of patent application is 03810668.X disclose a kind of supporting for transfer cart It gives as security the innovation and creation document that lock and number of patent application are 201620005872.1 and discloses integral type coin lock for shopping cart, from upper Document is stated to find out, structure be mechanical structure to complete locking of unlocking, Coin-feeding lock has the drawback that 1, structure is complicated, Packaging technology is more, at high cost；2, it needs to mortgage coin when using, is not suitable with the present means of payment, bring not side to consumer Just；3, since using complicated mechanical structure, longtime running inevitably wears, causes to insert coins or move back to close difficulty；4, it inserts coins not When entering, subsequent vehicle can not be reused, and be moved back when closing difficulty, be easy to cause consumer's violence and pounded lock, and both of which is to managing Reason person brings management to bother.

Summary of the invention

The purpose of the invention is to provide a kind of shopping lock, is latched with solving to mention existing shopping cart in background technique Technological deficiency.

To achieve the goals above, the technological means that the invention is taken is: a kind of shopping lock, comprising:

Key is being equipped with clamping portion on the key；

Lock body is equipped with the keyhole being inserted into for key on lock body；

Connecting line, one end are connect with lock body, and the other end is connect with key, and the length guarantee of the connecting line can not make key Spoon is inserted into the keyhole for the lock body connecting with itself；

Lock tongue is arranged in lock body and is configured in the movement for that can move into clamping portion to stop key, or can move Clamping portion is out to discharge the movement of key；

Lock tongue drive member is arranged in lock body comprising electric drive and switching component, the input terminal for component of transferring It is connect with the movement portion of driver, the output end for component of transferring connects lock tongue, and the switching component is configured in driver Power output is converted to so that lock tongue moves in and out the driving force of clamping portion.

Further, the electric drive is rotating electric machine, and described lock tongue one end is arranged in the limit hole on lock body, is limited Position hole makes lock tongue move along a straight line, the switching component is configured as the rotation for exporting rotating electric machine for limiting lock tongue rotation Torque is converted to so that lock tongue moves in and out the driving force of clamping portion.

Further, the switching component be include electrical machine belt pulley, belt and lock tongue belt wheel, the lock tongue appearance is provided with outer Screw thread, electrical machine belt pulley appearance are provided with the circular belt grooves of a circle, are provided in electrical machine belt pulley along the central axial direction of belt grooves Connecting hole, electrical machine belt pulley are fixed in the rotary shaft of motor by connecting hole, and it is circular that the lock tongue belt wheel appearance is provided with a circle Belt grooves, lock tongue belt wheel is interior to be provided with threaded hole along the central axial direction of belt grooves, and lock tongue is located at the threaded hole of lock tongue belt wheel In be threadedly coupled, lock tongue belt wheel can only rotate under the action of limit component in lock body, and belt is by electrical machine belt pulley and lock tongue Belt wheel transmission connection.

Further, the switching component is motor gear, intermediate gear and lock tongue gear, and the appearance of motor gear has One circle gear, the inside of motor gear have the connecting hole being mounted in the rotary shaft of motor, and the appearance of lock tongue gear has one Gear is enclosed, lock tongue gear is interior to be provided with threaded hole along center axis thereof direction, and lock tongue is located in the threaded hole of lock tongue gear with spiral shell Line connection, lock tongue gear can only rotate under the action of limit component in lock body, and intermediate gear is by motor gear and lock tongue tooth Wheel transmission connection.

Further, the limit component includes the ladder hole being arranged in fixed mounting plate and is arranged in shell The limited post of side, the lower part of the lock tongue belt wheel is located in ladder hole to be moved down with limiting lock tongue belt wheel, the lock tongue Through ladder hole, the upper end that the limited post contradicts lock tongue belt wheel is moved up with limiting lock tongue belt wheel.

Further, the electric drive is electromagnetic coil assembly, and the switching component is configured as electromagnetic coil group Part power output is converted to so that lock tongue removes or move into the driving force of clamping portion, and the electromagnetic coil assembly includes shell, electricity Magnetic coil and electromagnet, the shell are fixed in lock body, and the electromagnet is fixed in shell, the electromagnetic coil around On electromagnet, the one end for component of transferring is connect by spring with electromagnet, and the other end for component of transferring is connect with lock tongue.

Further, the lock body has the mounting assembly being mounted on shopping cart.

Further, the key and keyhole are equipped with the guide frame so that key orientation insertion keyhole.

Further, including trigger circuit plate and control panel, trigger circuit plate are communicatively connect with control panel, and lock tongue drives The electric drive of dynamic component is connect with control panel, and trigger circuit plate is fixed in lock body and is configured in when key is inserted into keyhole It is triggered when to locked position of coupler and sends trigger signal to control panel, control panel is configured in connection wireless network, receives instruction And control lock tongue drive member.

Further, including bar code scanning module, bar code scanning module are mounted in lock body, and the side of lock body is provided with for item The barcode scanning window of bar code outside code scan module scanning lock body, control panel and bar code scanning module communication connection.

Compared with prior art, the beneficial effect of the invention is: the invention can realize long-range control shopping cart Lock is unlocked, and trigger circuit plate controls shopping cart locking lock, is not needed mortgage coin, is suitble to the living habit of modern, to consumption It is convenient that person and manager bring, due to using electrical control mechanism, it is possible to reduce the mechanical mechanism of electronic lock is suitble to longtime running, dimension Shield is convenient.

Detailed description of the invention

Fig. 1 is the overall structure diagram of this shopping lock；

Fig. 2 is the first explosive view of this shopping lock；

Fig. 3 is the second explosive view of this shopping lock；

Fig. 4 is the scheme of installation of the lock tongue drive member in this shopping lock；

Fig. 5 is the structural schematic diagram of the fixed mounting plate in this shopping lock；

Fig. 6 is the structural schematic diagram of the upper housing in this shopping lock；

Fig. 7 is the structural schematic diagram of the lock tongue drive member in this shopping lock, wherein Fig. 7 a is electrical machine belt pulley signal Figure, Fig. 7 b are belt schematic diagram, and Fig. 7 c is lock tongue belt wheel schematic diagram, and Fig. 7 d is lock tongue schematic diagram；

Fig. 8 is the module diagram of the first lock control circuit in this shopping lock；

Fig. 9 is that the circuit structure of the CPU module and the first the locking trigger module being attached thereto in this shopping lock shows It is intended to；

Figure 10 is the electrical block diagram of second of locking trigger module in this shopping lock；

Figure 11 is the electrical block diagram of the lock control module for driving electromagnetic coil assembly in this shopping lock；

Figure 12 is the control method flow chart of the first lock control circuit；

Figure 13 is the module diagram of second of lock control circuit in this shopping lock；

Figure 14 is the control method flow chart of second of lock control circuit.

It should be understood that be combined in the description and constitute part of specification attached drawing show it is of the invention Embodiment, and illustrate principle for explaining the present invention together with it.

Specific embodiment

To keep the content of the invention clearer, with reference to the accompanying drawing, to the specific embodiment of the invention It is described in further detail.It should be noted that " connection " in the present embodiment including is indirectly connected with, directly connects according to broad understanding It connects or is rotatablely connected, the orientation up and down of the present embodiment is described by the orientation of attached drawing.

The shopping lock that the invention provides is suitable for shopping cart, is mounted on shopping cart, row's shopping cart is lined up One row, before shopping cart shopping lock key insertion below shopping cart shopping lock keyhole in, key can not be inserted Enter into the keyhole for the shopping lock being connect with itself, so that lock of doing shopping makes row's shopping cart be connected, manages good shopping Vehicle.Shopping car lock system is made of mobile communication equipment, Cloud Server and shopping lock, and mobile communication equipment passes through wireless network It is communicated with Cloud Server foundation；Cloud Server is communicated by wireless network with shopping lock foundation；Cloud Server and/or movement are logical Letter equipment receives lock status information sent by shopping lock etc. and manages shopping lock；In addition, mobile communication equipment is via cloud Server controls shopping cart lock or Cloud Server directly controls shopping lock.

The invention provide shopping lock it is as follows: refer to Fig. 1-Fig. 7, a kind of shopping lock, including, key 1, key 1 be equipped with clamping portion 1-1, it is preferred that key 1 is rectangular metal plate, the clamping portion 1-1 on key 1 be blocked hole or The shape of person's clamping groove, blocked hole or clamping groove can move in and out just for lock tongue 4.For example, blocked hole or card Access slot is round, and matchedly, lock tongue moves in and out end also to be circular.

Lock body 2 is equipped with the keyhole 2-1 being inserted into for key 1 on lock body 2；Preferably, keyhole 2-1 is rectangular, It is inserted into for rectangular-shaped key 1.

In order to realize that key 1 is properly inserted in keyhole 2-1, the guiding knot on key 1 and keyhole 2-1 is set Structure are as follows: be equipped with guide pad along the direction that key 1 moves on the inner wall of keyhole 2-1, and be correspondingly provided with guiding on key 1 Slot, when key 1 is inserted into keyhole 2-1, the guide pad is moved along guide groove 322.In the same way, the structure of guide frame It can be guide groove to be arranged in keyhole 2-1, meanwhile, guide pad is arranged on key 1.It is arranged in key 1 and keyhole 2-1 Interior guide frame is also possible to other similar structure, as long as insertion keyhole 2-1 can be oriented for key 1.

Connecting line 3, one end are connect with lock body 2, and the other end is connect with key 1, and the length guarantee of the connecting line 3 can not It is inserted into key 1 in the keyhole 2-1 for the lock body 2 connecting with itself；The preferably soft metal contact wires of the connecting line 3, Such as chain etc..

Lock tongue 4 is arranged in lock body 2 and is configured in as that can move into the clamping portion 1-1 to stop the key 1 It is mobile, or the clamping portion 1-1 can be removed to discharge the movement of the key 1.

Lock tongue drive member, be arranged in lock body 2 comprising electric drive 5-1 and switching component, component of transferring it is defeated Enter end to connect with the movement portion of driver 5-1, the output end of component of transferring connects lock tongue 4, the switching component be configured in by The power output of electric drive is converted to so that lock tongue 4 moves in and out the driving force of clamping portion 1-1.

In the present embodiment, the lock body 2 includes upper lock body 21 and down lock body 22, and upper lock body 21 and down lock body 22 are removably Connection, it is preferable that upper lock body 21 and down lock body 22 are connected by screw to, or clamping, and the keyhole 2-1 is arranged in down lock body On 22, keyhole 2-1 is outer towards being arranged in lock body 2 from lock body 2, and the inner top surface of keyhole 2-1 hole wall is provided with relief hole 2-3, supplies Lock tongue 4 protrudes into, and relief hole 2-3, which can also be played, gives lock tongue 4 guiding role.

The upper end of the lock tongue 4 is extend into the limit hole 21-1 for being located at 21 inner top surface of upper lock body, the work of limit hole 21-1 With being that limitation lock tongue 4 rotates, guarantee that lock tongue 4 can only move up and down, the lower end of lock tongue 4 is protruded into relief hole 2-3.Preferably, it locks The cross-sectional shape of the upper end of tongue 4 is square or equilateral triangle, matched, limit hole 21-1 be square or Equilateral triangle.

Electric drive 5-1 in lock tongue drive member uses rotating electric machine, it is preferred that electric drive 5-1 is using rotation step Into motor, it is conveniently precisely controlled the revolution of motor, to accurately drive the moving distance of lock tongue 4.

In order to drive upper movement under lock tongue 4, the switching component is configured as being converted to the rotating torque that motor exports So that lock tongue 4 moves in and out the driving force of clamping portion 1-1.

In the present embodiment, the switching component includes electrical machine belt pulley 5-2, belt 5-3 and lock tongue belt wheel 5-4, the lock tongue 4 Middle part be provided with external screw thread in appearance, electrical machine belt pulley 5-2 appearance is provided with the circular belt grooves of a circle, in electrical machine belt pulley 5-2 along The central axial direction of belt grooves is provided with connecting hole, and electrical machine belt pulley 5-2 is fixed in the rotary shaft of motor 5-1 by connecting hole, The lock tongue belt wheel 5-4 appearance is provided with the circular belt grooves of a circle, the interior central axial direction along belt grooves of lock tongue belt wheel 5-4 It is provided with threaded hole, lock tongue 4, which is located in the threaded hole of lock tongue belt wheel 5-4, to be threadedly coupled, work of the lock tongue belt wheel 5-4 in limit component It can only be rotated, cannot be moved up and down in down lock body 2, therefore, when lock tongue belt wheel 5-4 rotates, the rotation of lock tongue belt wheel 5-4 can be passed through Turn, driving lock tongue 4 moves up；Electrical machine belt pulley 5-2 and lock tongue belt wheel 5-4 is sequentially connected by belt 5-3, motor rotation When turning, electrical machine belt pulley 5-2, which rotates and passes through belt 5-3, drives lock tongue belt wheel 5-4 to rotate, so that lock tongue 4 upwardly or downwardly moves It is dynamic.

Preferably, in order to preferably install lock tongue drive member, it is equipped with fixed mounting plate 6 in upper lock body 21, is fixedly mounted Plate 6 is fixed by screws in upper lock body 21, and the switching component and motor are each attached in fixed mounting plate 6, and motor passes through Screw is fixed in the screw hole in fixed mounting plate 6, described in order to guarantee that lock tongue belt wheel 5-4 is only rotated without moving up and down It is equipped with ladder hole 6-1 in fixed mounting plate 6, is on the one hand penetrated for lock tongue 4, on the other hand, the lower part of lock tongue belt wheel 5-4 is located at In ladder hole 6-1, the diameter of ladder hole 6-1 is greater than the maximum outside diameter of lock tongue belt wheel 5-4, not hinder lock tongue belt wheel 5-4 Rotation, ladder hole 6-1 limits lock tongue belt wheel 5-4 and moves downward, and matched, the inner top surface of upper lock body 21 is equipped with Limited post 21-2, limited post 21-2 are located at the top of lock tongue belt wheel 5-4 and contradict with the upper end of lock tongue belt wheel 5-4, to limit lock Lingual ribbon wheel 5-4 is moved upwards, but does not hinder the rotation of lock tongue belt wheel 5-4；It is worth noting that on limitation lock tongue belt wheel 5-4 The structure of lower movement is not limited to above embodiment, can also be arranged in fixed mounting plate 6 and be used cooperatively with ladder hole 6-1 Limit cover board so that lock tongue belt wheel 5-4 is limited in fixed mounting plate 6 is rotated.It can also be arranged on upper lock body 21 The limit cover board being used cooperatively with limited post is so that lock tongue belt wheel 5-4 is limited in upper lock body 32 and is rotated.

It is emphasized that switching component can also be motor gear, intermediate gear and lock tongue gear, motor gear it is outer Table has a circle gear, and the inside of motor gear has the connecting hole being mounted in the rotary shaft of motor, lock tongue gear appearance tool There is a circle gear, lock tongue gear is interior to be provided with threaded hole along center axis thereof direction, and lock tongue 4 is located in the threaded hole of lock tongue gear It being threadedly coupled, lock tongue gear can only rotate under the action of limit component in lock body 2, it cannot move up and down, therefore, lock tongue When gear rotates, lock tongue 4 can be driven to move up by the rotation of lock tongue gear；Intermediate gear is by motor gear It being connected with lock tongue gear drive, when motor rotates, motor gear, which rotates and passes through intermediate gear, drives lock tongue gear to rotate, thus Lock tongue 4 moves up.It of courses, switching component is also possible to the exchanging structure of worm-gear-worm, as long as can will be electric The rotating torque of machine output is converted to so that lock tongue 4 moves in and out the shape of the switching component of the driving force of clamping portion 1-1 It is the protection scope of the invention with construction.

Although the present embodiment lists the technical solution that electric drive 5-1 is rotating electric machine, but electric drive 5-1 can also To use electromagnetic coil assembly, the switching component is configured as being converted to electromagnetic coil assembly power output so that lock tongue 4 moves Out or move into clamping portion 1-1 driving force.

Specifically, electromagnetic coil assembly includes shell, electromagnetic coil and electromagnet, the shell is fixed in upper lock body 21 On top surface, the electromagnet is fixed in shell and in upper and lower vertical direction, and the electromagnetic coil is wound on electromagnet, One end of switching component is connect by spring with electromagnet, and the other end for component of transferring is connect with the upper end of lock tongue 4, lock tongue 4 Lower end can be extend into relief hole 2-3, and switching component is a connection column, and one end is located in shell, not needed at this time solid Dingan County's loading board 6, when electromagnetic coil is powered, electromagnet generates a very big magnetic field, generates an attraction to switching component, Attraction is greater than the active force of spring, and switching component is upward and carries lock tongue 4 upwards, removes clamping portion 1-1, electromagnetic coil power-off When, switching component moves downward under the action of the spring, and lock tongue 4 is driven to move into clamping portion 1-1, and switching component 4 is using magnetic Metal material is made, such as steel.

In lock body 2, including control panel 7 and trigger circuit plate 8, trigger circuit plate 8 are communicatively connect with control panel 7, Trigger circuit plate 8 be fixed in lock body 2 and be configured in when key 1 is inserted into keyhole 2-1 to locked position of coupler be triggered and to Control panel 7 sends trigger signal, and trigger signal can be used as block signal, and can be used as lock status signal, described Control panel 7 is configured in connection wireless network, receives and instructs and control lock tongue drive member, it is preferred that control panel 7 is fixed on In Dingan County's loading board 6, and it is connected by screw to fixation.

The control panel 7 is fixed in lock body 2, can receive Cloud Server by wireless network connection Cloud Server Instruction, such as unlocking instruction.After receiving unlocking instruction, control panel 7 controls the movement of lock tongue drive member, drives in lock tongue Under the action of dynamic component, lock tongue 4 moves upward out the clamping portion of key, to discharge the movement of key 1, completes to unlock.

The mounting groove 2-4 of trigger circuit plate 8 is equipped in down lock body 22, this mounting groove 2-4 is connected to keyhole 2-1, is touched Power Generation Road plate 8 is mounted in mounting groove 2-4, and when key 1 is inserted into keyhole 2-1 to locked position of coupler, trigger circuit plate 8 is by key 1 triggering, to send trigger signal to control panel 7, after control panel 7 receives trigger signal, control lock tongue drive member is dynamic Make, under the action of lock tongue drive member, lock tongue is moved downwardly into the clamping portion 1-1 of key 1, to prevent key from lock body It is extracted in 2, completes locking.

If lock tongue drive member, using rotating electric machine, control panel 7 controls the positive and negative rotation of motor to realize driving The upwardly or downwardly movement of lock tongue 4.

If lock tongue drive member is using electromagnetic coil assembly, the power on/off of the logical control electromagnetic coil of control panel 7 To realize the upwardly or downwardly movement of driving lock tongue 4.

In addition, further including bar code scanning module 9 on the basis of the above embodiments, bar code scanning module 9 is mounted on lock body In 2, with this cooperation, the barcode scanning window that the bar code outside lock body is scanned for bar code scanning module 9 is provided in the side of lock body 2 Mouth 2-2, in the present embodiment, it is preferred that bar code scanning module 9 is fixed in fixed mounting plate 6, and is connected by screw to solid It is fixed, scanning window 2-2 is provided in the side of upper lock body 21.Control panel 7 and 9 communication connection of bar code scanning module, control bar code are swept It retouches module 9 and scans bar code, and receive the bar code information i.e. commodity code of the feedback of bar code scanning module 9, and bar code information is passed through Wireless network feeds back to Cloud Server.

Lock body 2 is mounted on the cross bar 10 of shopping cart, mounting assembly are as follows: is opened respectively the opposite two sides of upper lock body 21 There is the first arc-shaped installation relief hole, the opposite two sides of down lock body 22 have the second arc-shaped installation and step down Hole, moreover, the bottom surface of down lock body 22 is equipped with positioning pin, when upper lock body 21 and down lock body 22 are connected with each other, the cross bar 10 of shopping cart In the first installation relief hole and the second installation the surrounding of relief hole, positioning pin, which penetrates to be arranged on shopping cart cross bar 10, to be determined In the hole of position, to prevent lock body 2 from rotating.

The edge of first installation relief hole and the second installation relief hole is respectively equipped with elastic protection pad (not shown), is closing When enclosing the cross bar 10 of shopping cart, for elastic protection pad package cross bar 10 to prevent from contacting gouge lock body 2 firmly, elastic protection pad uses rubber It is made.

It is worth noting that the mounting assembly for being mounted on shopping cart on lock body 2 has many kinds, such as by lock body 2 lateral surfaces setting at least two hoop components etc. mode, as long as can be realized detachable installation, shopping lock is detachable Ground, which is mounted on shopping cart, to be conducive to safeguard and replace, and management cost is reduced.

Lock control circuit part about shopping lock

Next the lock control circuit being integrated on control panel 7 and trigger circuit plate 8 and control is discussed in detail in we Method.

Embodiment 1, the module diagram that Fig. 8 is the first lock control circuit in this shopping lock, lock control circuit include CPU module, and the communication module that is communicably connected respectively with the CPU module, lock control module, locking trigger module and be The power module of modules power supply.It preferably, further include the voice module and bar code scan being communicatedly connected with CPU module Module.

CPU module is the central processing unit of lock control circuit, total to carry out such as the movements of each module of lock control circuit Body control, such as instruction, the information of other each modules for carrying out self-locking control circuit etc. from Cloud Server are handled, and Control instruction etc. is sent to other each modules.

Communication module includes antenna, buffer etc., may connect to wireless network, under the control of CPU module with cloud service Receive and send messages between the external equipments such as device 2, for example, 4G communication module, 3G communication module, wifi communication module, bluetooth module and NB-lot communication module etc..

Lock control module is used to control lock tongue drive member according to the instruction of CPU module, realizes opening for the key of shopping lock Lock and locking.

Locking trigger module is used to be triggered by key, and generation one when key is inserted into keyhole to locked position of coupler Trigger signal sends locking instruction, locking trigger module output to lock control module according to trigger signal to CPU module, CPU module Low and high level can reflect lock status information (blocking, unlocking condition), and by lock status information (blocking, unlocking State) it is reported to CPU module.

Power module includes battery and power management chip etc., can provide different electricity for above-mentioned various electronic modules Pressure can also feed back the state of battery to CPU module.It should be noted that in the later-described embodiments, power module be containing Battery is as electric power storage devices, but in the case where can be from external power supply in real time, such as when can adopt electricity by solar energy, Can also not have battery, but be realized for example, by the combination of photovoltaic element and capacitor etc..

Preferably, voice module includes speech chip and loudspeaker, and under CPU module control, voice module plays voice Content, voice content such as: unlock successfully, be latched successfully, or welcome to use etc..

The CPU module, and the communication module, the lock control module, locking touching that are communicably connected respectively with the CPU module Hair module and the power module powered for modules are integrated on control panel 7, and locking trigger module is integrated in touching On Power Generation Road plate 8.

Fig. 9 is that the circuit structure of the CPU module and the first the locking trigger module being attached thereto in this shopping lock shows It is intended to, the CPU module includes single-chip microcontroller, crystal oscillating circuit unit and serial line interface, the crystal oscillating circuit unit and serial line interface Port connection corresponding with single-chip microcontroller.CPU module use model STM32F103C8T6 single-chip microcontroller, crystal oscillating circuit unit with 5th pin of single-chip microcontroller and the connection of the 6th pin, serial line interface are connect with the 31st pin of single-chip microcontroller and the 30th pin, Power module exports 3.3VDC power supply and powers to CPU module.

In the invention, two kinds of preferred embodiments of the locking trigger module are that first method is: the locking touching Hair module includes first resistor R6 and touch-switch, and one end of the first resistor R6 and the output end of power module connect, institute State the other end of first resistor R6 and one end of touch-switch, an end IO of CPU module connects, the touch-switch it is another End ground connection.Key touches touch-switch, and the output voltage for being latched trigger module is dragged down by high level, and locking trigger module is given 25th pin input low level of single-chip microcontroller, single-chip microcontroller uses low level signal as trigger signal, using touch-switch Locking trigger module structure it is simpler, at low cost and easy to accomplish.Second method is: Figure 10 is in this shopping lock The electrical block diagram of second of locking trigger module, the locking trigger module include close to switch P1 and photoelectrical coupler U2, described to connect close to the power end of switch P1 and the output end of power module, the ground terminal close to switch P1 is grounded, institute The output end stated close to switch P1 is connect with the first input end of photoelectrical coupler U2, the second input of the photoelectrical coupler U2 End through connect with the output end of power module after resistance, the first output end of the photoelectrical coupler U2 through resistance later with electricity The output end of source module connects, and the first output end of the photoelectrical coupler and an end IO of CPU module connect, the photoelectricity The second output terminal of coupler is grounded.When the key is inserted, close to the output of switch P1 by the high level defaulted down for low electricity It is flat, at this point, two input terminals of photoelectrical coupler U2, by pressure difference, the output end of photoelectrical coupler U2 is pulled down to low electricity by high level It is flat, to single-chip microcontroller fiber pin level by high level down for low level, single-chip microcontroller is using low level signal as triggering Signal, this structure is non-contact triggering, easy to accomplish, and reliability is good.

In the invention, for motor, the lock control module is using the model for driving four line stepper motor of two-phase For the transistor array of ULN2003L, the input terminal of the transistor array and four ends IO (IN1-IN4) of CPU module connect It connects, four output ends of the transistor array are connect with stepper motor.Stepper motor can realize accurate rotation control, can be accurate The stroke of lock tongue is controlled, steadily unlocking and block action are completed.

In the invention, for electromagnetic coil assembly, Figure 11 is in this shopping lock for driving electromagnetic coil group The electrical block diagram of the lock control module of part；The lock control module includes divider resistance unit, switching tube and freewheeling diode D2, the end IO of the CPU module are connected to the base stage of switching tube by divider resistance unit, the collector of the triode Q9 with The input terminal connection of the anode of sustained diode 2, electromagnetic coil, the cathode of the sustained diode 2, electromagnetic coil Another input terminal is connect with the output end of power module simultaneously, the radio pole ground connection of the switching tube.The end IO of CPU module is defeated High level voltage is input in the base stage of triode Q9 after divider resistance unit (R38 and R39) partial pressure out, and triode Q9 is led Logical, then electromagnetic coil is powered, when the voltage at the end IO of CPU module becomes low level, triode shutdown, and electromagnetic coil power-off, Since electromagnetic coil has electric energy, afterflow is carried out by sustained diode 2, gradually power loss, if broken without freewheeling diode Electric energy moment when electric in electromagnetic coil is very big, may generate impact to triode and power module, destroy component.

Figure 12 is the control method flow chart of the first lock control circuit；The control of lock control circuit in 1 based on the above embodiment Method processed is as follows:

Step 1) initialization, CPU module receive Cloud Server send wake up instruction and be waken up, wake up lock control module and Communication module, and current lock status information is inquired to locking trigger module；

Step 2 is latched trigger module and reports current lock status information to CPU module, if current lock status information is table Show that lock is in the information of unlocking condition, for example, trigger module feeds back to CPU module is high level signal for locking, then CPU module Determine shopping lock be in use, therefore starting the first suspend mode, that is, lock control module and communication module enter suspend mode shape State, CPU module also enter dormant state but do not ignore or shield the level signal of locking trigger module feedback, execute step 5)；

If step 3) lock status information is to indicate that lock is in the information of blocking, for example, being latched trigger module to CPU Module feedback is low level signal, then CPU module determines that shopping lock is in locking, and then CPU module receives cloud service The unlocking instruction that device is sent, CPU module send control instruction to lock control module according to unlocking instruction, and lock control module controls lock tongue and drives Dynamic component, lock tongue drive member drive the clamping portion of lock tongue removal key；

If the current lock status information that step 4) locking trigger module is fed back to CPU module is to indicate lock in unlocking shape The information of state, CPU module determine that shopping lock is in use that (preferred, CPU module wakes up voice module and simultaneously controls it Play voice content), then start the first suspend mode, that is, lock control module and communication module enter dormant state, CPU module Also enter dormant state but do not ignore or shield the level signal of locking trigger module feedback and the instruction from Cloud Server (preferred, voice module also enters suspend mode), execute step 5)；

If the current lock status information that locking trigger module is fed back to CPU module is to indicate that lock is in the letter of blocking Breath, for example, trigger module feed back to CPU module is high level signal for locking, then lock of doing shopping is to Cloud Server feedback unlocking Failure information (preferred, CPU module, which wakes up voice module and controls it, plays voice content), then executes step 1)；

When step 5) shopping lock is in unlocking condition, CPU module periodically self is called out according to the period 1 of setting themselves It wakes up, wakes up communication module, CPU module obtains the status information of battery and is sent to Cloud Server, then starts the first suspend mode mould Formula waits next wake-up period；

Preferably, when CPU module receives the barcode scanning open command of Cloud Server transmission, CPU module wakes up immediately, and Communication module and bar code scanning module are waken up, CPU module sends the enabled instruction of scanning, bar code scanning module to bar code scanning module Start to scan and decode bar code, bar code information is fed back into Cloud Server, when CPU module receives the barcode scanning of Cloud Server transmission When shutdown command, start the first suspend mode, bar code scanning module enters dormant state, waits next wake-up period；

If the current lock status information that step 6) locking trigger module is fed back to CPU module is to indicate lock in unlocking shape The information of state executes step 5)；

If the current lock status information that locking trigger module is fed back to CPU module is to indicate that lock is in the letter of blocking Breath, CPU module is waken up immediately, and wakes up communication module, and CPU module receives the block signal that locking trigger module issues, Then lock tongue drive member is controlled according to block signal, lock tongue drive member drives the clamping portion of lock tongue immigration key；CPU module By current lock status information sending Cloud Server by communication module, (preferred, CPU module also wakes up voice module and controls Make it and play voice content), then start the second suspend mode, that is, CPU module and modules enter dormant state, still CPU module also enters dormant state but does not ignore or shield the level signal of locking trigger module feedback and come from Cloud Server Instruction；

When step 7) shopping lock is in blocking, CPU module periodically self is called out according to the second round of setting themselves It wakes up, and wakes up communication module, CPU module obtains the status information of battery and is sent to Cloud Server, then starts the second suspend mode Mode waits next wake-up period.

Preferably, length when period 1 duration is than second round.Because not having when lock of doing shopping is in locking There is charging, reduce the chance of wake-up to the greatest extent, to save electric energy.

The control method provided in this implementation 1 can be reduced as far as the consumption of electricity, electric energy be saved, to improve electricity The service life of source module is convenient for shopping cart in addition, can carry out voice prompting in unlocking and locking, monitor the state of battery The maintenance of lock, bar code scanning module may be implemented shopping lock and bar code information fed back to Cloud Server.

Embodiment 2, on the basis of embodiment 1, Figure 13 are that the module of second of lock control circuit in this shopping lock is shown It is intended to, lock control circuit further includes the touch display screen being communicably connected with CPU module, and touch display screen is used for obtaining The account and password at family, the user account and password that touch display screen will acquire are sent to CPU module, and CPU module will be used Family account and cipher feedback are to Cloud Server.The outer surface of lock body 2 is arranged in touch display screen, can be it is embedded setting or The setting of person's surface-mount type.

Figure 14 is the control method flow chart of second of lock control circuit, the control of the lock control circuit part in embodiment 2 Method is compared to the control method in embodiment 1, and step 4) is identical to step 7), the difference is that step 1) is to step 3): that is, step 1) initializes, CPU module is waken up, and wakes up lock control module and communication module, and CPU module is simultaneously triggered to locking The current lock status information of module queries, there are two types of the modes for waking up CPU module, refers to first, receiving the wake-up that Cloud Server is sent It enables, carries out wake-up CPU module according to wake up instruction；Second, point touching display screen, touch display screen wakes up CPU module；

Step 2 is latched trigger module and reports current lock status information to CPU module, if current lock status information is table Show that lock is in the information of unlocking condition, for example, trigger module feeds back to CPU module is high level signal for locking, then CPU module Determine shopping lock be in use, therefore starting the first suspend mode, that is, lock control module and communication module enter suspend mode shape State, CPU module also enter dormant state but do not ignore or shield the level signal of locking trigger module feedback and take from cloud The instruction of business device, executes step 5)；

If the current lock status information of step 3) is to indicate that lock is in the information of blocking, for example, locking trigger module What is fed back to CPU module is low level signal, then CPU module determines that shopping lock is in locking and judges that CPU module is called out Awake mode；When the mode that CPU module is waken up is that touch display screen has waken up CPU module, then CPU module, which receives, touches display Shield the user account and password obtained, generate request of unlocking, user account, password and request feedback of unlocking are arrived into Cloud Server, When Cloud Server receives unlocking request, first verify user account and password, that is, judge user account and password whether with registration User account it is consistent with password, if it is inconsistent, authentication failed, feeds back to CPU module, CPU for the information of authentication failed Module control touch display screen correlation module prompted, for example, wake up voice module carry out voice prompting, and or progress Prompt executes step 1)；If consistent, it is proved to be successful, Cloud Server generates unlocking instruction, and CPU module receives Cloud Server The unlocking instruction of transmission；

When the mode that CPU module is waken up is the wake up instruction that Cloud Server is sent, then CPU module receives Cloud Server hair The unlocking instruction sent；

After the unlocking instruction that CPU module receives that Cloud Server is sent, CPU module is according to unlocking instruction to lock control module Control instruction is sent, lock control module controls lock tongue drive member, and lock tongue drive member drives the clamping portion of lock tongue removal key.

Preferably, length when period 1 duration is than second round.Because not having when lock of doing shopping is in locking There is charging, reduce the chance of wake-up to the greatest extent, to save electric energy.

The control method provided in this implementation 2 can be reduced as far as the consumption of electricity, electric energy be saved, to improve electricity The service life of source module, touch display screen can obtain user account and password in the case where not having to cell phone client, realize It unlocks, in addition, can carry out voice prompting in unlocking and locking, monitor the state of battery, convenient for the maintenance for lock of doing shopping, item Code scan module may be implemented shopping lock and bar code information fed back to Cloud Server.

Finally, it should be noted that above-mentioned specific embodiment is used to illustrate the invention, rather than to the present invention Creation is limited, and those skilled in the art can still carry out the technical solution that embodiment is illustrated Modification, and any modifications and changes that the invention is made also should be regarded as with the protection scope of the invention.

Claims (10)

1. a kind of shopping lock characterized by comprising

Key is being equipped with clamping portion on the key；

Lock body is equipped with the keyhole being inserted into for key on lock body；

Connecting line, one end are connect with lock body, and the other end is connect with key, and the length guarantee of the connecting line can not be such that key inserts Enter into the keyhole for the lock body being connect with itself；

Lock tongue is arranged in lock body and is configured in the movement for that can move into clamping portion to stop key, or can remove card Socket part is to discharge the movement of key；

Lock tongue drive member is arranged in lock body comprising electric drive and switching component, the input terminal for component of transferring and drive The movement portion connection of dynamic device, the output end for component of transferring connect lock tongue, and the switching component is configured in the output of driver Power is converted to so that lock tongue moves in and out the driving force of clamping portion.

2. a kind of shopping lock as described in claim 1, which is characterized in that the electric drive is rotating electric machine, the lock Tongue one end is arranged in the limit hole on lock body, and limit hole makes lock tongue move along a straight line, the switching structure for limiting lock tongue rotation Part is configured as being converted to the rotating torque that rotating electric machine exports so that lock tongue moves in and out the driving force of clamping portion.

3. a kind of shopping lock as claimed in claim 2, which is characterized in that the switching component be include electrical machine belt pulley, skin Band and lock tongue belt wheel, the lock tongue appearance are provided with external screw thread, and electrical machine belt pulley appearance is provided with the circular belt grooves of a circle, electrical machine belt pulley The interior central axial direction along belt grooves is provided with connecting hole, and electrical machine belt pulley is fixed in the rotary shaft of motor by connecting hole, The lock tongue belt wheel appearance is provided with the circular belt grooves of a circle, and lock tongue belt wheel is interior to be provided with spiral shell along the central axial direction of belt grooves Pit, lock tongue, which is located in the threaded hole of lock tongue belt wheel, to be threadedly coupled, and lock tongue belt wheel can only locked under the action of limit component It is rotated in body, electrical machine belt pulley is connect by belt with lock tongue belt wheel transmission.

4. a kind of shopping lock as claimed in claim 2, which is characterized in that the switching component is motor gear, center tooth Wheel and lock tongue gear, the appearance of motor gear have a circle gear, and the inside of motor gear has the rotary shaft for being mounted on motor On connecting hole, the appearance of lock tongue gear has a circle gear, is provided with threaded hole along center axis thereof direction in lock tongue gear, Lock tongue, which is located in the threaded hole of lock tongue gear, to be threadedly coupled, and lock tongue gear can only revolve under the action of limit component in lock body Turn, intermediate gear connects motor gear with lock tongue gear drive.

5. a kind of shopping lock as claimed in claim 3, which is characterized in that the limit component includes that setting is being fixedly mounted Ladder hole on plate and the limited post that case inside face is set, the lower part of the lock tongue belt wheel be located in ladder hole with Limitation lock tongue belt wheel moves down, and the lock tongue runs through ladder hole, and the limited post contradicts the upper end of lock tongue belt wheel to limit Lock tongue belt wheel moves up.

6. a kind of shopping lock as described in claim 1, which is characterized in that the electric drive is electromagnetic coil assembly, institute Switching component is stated to be configured as being converted to electromagnetic coil assembly power output so that lock tongue removes or move into the driving of clamping portion Power, the electromagnetic coil assembly include shell, electromagnetic coil and electromagnet, and the shell is fixed in lock body, the electromagnet It being fixed in shell, the electromagnetic coil is wound on electromagnet, and the one end for component of transferring is connect by spring with electromagnet, The other end of switching component is connect with lock tongue.

7. a kind of shopping lock as described in claim 1, which is characterized in that the lock body, which has, to be mounted on shopping cart Mounting assembly.

8. a kind of shopping lock as described in claim 1, which is characterized in that the key and keyhole are equipped with so that key The guide frame of orientation insertion keyhole.

9. a kind of shopping lock as described in claim 1, which is characterized in that including trigger circuit plate and control panel, triggering electricity Road plate is communicatively connect with control panel, and the electric drive of lock tongue drive member is connect with control panel, and trigger circuit plate is fixed on It in lock body and is configured in and is triggered when key insertion keyhole is to locked position of coupler and sends trigger signal to control panel, control Plate is configured in connection wireless network, receives and instructs and control lock tongue drive member.

10. a kind of shopping lock as claimed in claim 9, which is characterized in that including bar code scanning module, bar code scanning module It is mounted in lock body, the side of lock body is provided with the barcode scanning window for the bar code outside bar code scanning module scanning lock body, control Plate and bar code scanning module communication connection.