Non-contact unlocking commodity protection device, its usage method and commodity protection system

Abstract

The present invention relates to a non-contact unlocking commodity protection device, its usage method and a commodity protection system, which can not only perform remote full-automatic unlocking, but also save time and effort in locking, have good applicability in use, and can provide anti-theft protection for boxed packaged commodities. A pin locking mechanism is provided inside the cover body, and the power unit in the pin locking mechanism can drive a locking pin to lock the lock head of a lock block in the locking member; an induction element is provided inside the cover body, and when a lock groove in the locking member is inserted and matched with an insertion block in the base, the induction element will change the state signal; a control unit and a signal transceiver processing unit are provided on a circuit board, a signal output end of the induction element and a signal output end of the signal transceiver processing unit are respectively communicatively connected to a signal input end of the control unit, and a signal output end of the control unit is communicatively connected to a signal input end of the power unit. Advantages: The non-contact unlocking commodity protection device can perform remote full-automatic unlocking and can be used in occasions such as unmanned self-service cashier desks.

Description

Technical Field

[0001] The present invention relates to a non-contact unlocking commodity protection device, its usage method and a commodity protection system, which can not only perform remote full-automatic unlocking, but also save time and effort in locking, have good applicability in use, and can protect boxed packaged commodities from theft, belonging to the technical field of commodity anti-theft. Background Art

[0002] CN 107444771 A owned by the present applicant, titled "A Packaging Box Protection Device", includes a base for fixing to a packaging box; a cover movably connected to the base, with the cover and the base partially separated and allowing a package to pass through; a circuit board fixedly disposed within the cover; an alarm disposed within the cover and electrically connected to the circuit board; a locking assembly disposed on the cover and capable of locking and unlocking the cover and the base through its own movement, with the locking assembly being able to intermittently contact the circuit board; when the locking assembly is locked, it contacts the circuit board and cuts off the power supply between the alarm and the circuit board, and when the locking assembly is unlocked, it separates from the circuit board and the alarm is powered on with the circuit board. The locking assembly includes a slider movably connected to the cover, with a locking block provided at the bottom of the slider, and a corresponding lock hole provided on the base. The slider can move up and down relative to the cover and the locking block can be inserted into or removed from the lock hole to lock or separate the cover and the base. A resisting block is provided in the middle of the slider, and a contact switch is provided on the circuit board. When the locking block is inserted into the lock hole, the resisting block contacts the contact switch and the alarm is cut off from the circuit board, and when the locking block is removed from the lock hole, the resisting block separates from the contact switch and the alarm is powered on with the circuit board. Two spaced-apart limiting plates are provided on the inner surface of the cover, and the slider is restricted between the two limiting plates and moves up and down between the two limiting plates. A locking rod protrudes from the upper end of the slider, and an unlocking spring is sleeved on the locking rod, with the unlocking spring respectively abutting against the slider and the cover. When the cover and the base are locked, the unlocking spring is compressed, and when unlocked, the unlocking spring can separate the cover and the base. An installation cylinder is provided on the inner surface of the cover, with the limiting plate located below the installation cylinder. One end of the unlocking spring abuts against the installation cylinder, and a plurality of locking balls are provided within the installation cylinder. When the cover and the base are locked, the locking rod extends into the installation cylinder and the locking balls respectively abut tightly against the locking rod and the installation cylinder. The locking balls are made of a metallic material or a magnetic material, and when the locking balls are attracted by an attractive force, the locking balls can respectively separate from the locking rod and the installation cylinder. A spring seat is provided within the installation cylinder, with the locking balls located between the spring seat and the installation cylinder. The locking rod extends into the spring seat, and a locking spring is provided within the spring seat. One end of the locking spring abuts against the cover, and the other end abuts against the spring seat and presses the spring seat tightly against the locking balls. An installation cover is provided within the installation cylinder, with the upper end of the installation cover abutting against the cover and the lower end abutting within the installation cylinder. The locking balls, the spring seat and the locking spring are all located within the installation cover, and the locking rod extends into the installation cover. A resisting column that can pass through the base is movably disposed within the cover, and a conductive switch is provided on the circuit board. When the resisting column contacts the packaging box, the resisting column contacts the conductive switch and the alarm is cut off from the circuit board, and when the resisting column separates from the packaging box, the resisting column separates from the conductive switch and the alarm is powered on with the circuit board. A limiting cylinder is fixedly provided on the inner surface of the cover and the resisting column is located within the limiting cylinder, and a return spring capable of moving the resisting column is provided between the resisting column and the limiting cylinder.A light emitter and a receiver electrically connected to an alarm are provided on the circuit board. The optical signal between the light emitter and the receiver can pass through the base and be projected onto the packaging box. When the optical signal received by the receiver changes, the circuit board and the alarm are powered on. On the inner surface of the base, receiving grooves for accommodating the packages are alternately arranged. Both ends of each receiving groove extend to the periphery of the base, and baffles are formed on both sides of each receiving groove. A plurality of anti-slip portions are provided on the surface of the receiving groove. The anti-slip portions include a plurality of anti-slip nails in a conical shape arranged at intervals, and the anti-slip nails are close to the edge of the base. A retaining ring is convexly provided on the periphery of the lower surface of the cover body, and a plurality of receiving notches opposite to the receiving grooves are provided on the retaining ring. A plurality of pressing blocks adjacent to the receiving notches are provided on the lower surface of the cover body. When the cover body and the base are in a locked state, the pressing blocks abut against the packages. The cover body and the base are pivotally connected by a pivot shaft, and a torsion spring is sleeved on the pivot shaft. Both ends of the torsion spring abut against the cover body and the base respectively. It includes the following steps: detecting the planar displacement distance of the packaging box protection device through a photoelectric sensor; if the planar displacement distance exceeds a first preset distance, starting the alarm; detecting the vertical displacement distance of the packaging box protection device through the photoelectric sensor; if the vertical displacement distance exceeds a second preset distance, starting the alarm. The photoelectric sensor obtains the vertical displacement distance by acquiring the graphic signals received at different heights. Its disadvantages are as follows: This kind of packaging box protection device uses a magnetic unlocker to unlock. To remove the anti-theft label attached to the commodity, the magnetic unlocker must be used to contact the label to unlock, that is, it must be unlocked by manual (employee) operation, and it cannot be used in occasions such as self-checkout without staff. Summary of the Invention

[0003] Design purpose: To avoid the deficiencies in the background technology, a non-contact unlocking commodity protection device, its use method and commodity protection system are designed, which can not only perform remote full-automatic unlocking, but also save time and effort in locking, have good applicability, and can protect boxed commodities from theft at the same time.

[0004] Design scheme: To achieve the above design purpose.

[0005] 1. A pin locking mechanism is provided inside the cover, and the power unit in the pin locking mechanism can drive the locking pin to lock the lock head of the lock block in the locking member. An induction element is provided inside the cover. When the lock groove in the locking member is inserted and matched with the insertion block in the base, the induction element will change the state signal. This is one of the technical features of the present invention. The purpose of this design is as follows: For locking, the packing tape is accommodated in the accommodation groove of the base, and then the cover is pressed. The cover will rotate around the shaft in the hinge member until the lock groove in the locking member is inserted and matched with the insertion block in the base. At the same time, during the downward pressing of the cover, the locking member slides upward relative to the cover until the locking member touches the induction element. At this time, the induction element will change the state signal and transmit this signal to the control unit. After receiving the signal, the control unit controls the power unit to drive the locking pin to lock the lock block, so that the operator can quickly complete the locking operation with one hand; for unlocking, the server sends the unlocking signal to the control unit through the signal transceiver processing unit. After receiving the unlocking signal, the control unit controls the power unit to drive the locking pin to disengage from the lock head. At this time, the lock block slides downward under the restoring force of the elastic member. When the sliding lock block disengages the lock groove from the insertion block, the base is opened, and then the packing tape is removed from the accommodation groove of the base. In this way, the operator can remotely unlock the device, providing a basic guarantee for the realization of the scenario of unmanned self-checkout; thirdly, the device can provide anti-theft protection and RFID inventory for boxed goods.

[0006] 2. The design that after the rod body of the locking pin passes through the narrow hole section of the "convex"-shaped lock hole and is located in the wide hole section of the "convex"-shaped lock hole, the power unit drives the locking pin to rotate 90° to lock the lock block is the second technical feature of the present invention. The purpose of this design is as follows: After the rod body of the locking pin passes through the narrow hole section of the "convex"-shaped lock hole and is located in the wide hole section of the "convex"-shaped lock hole, the power unit drives the locking pin to rotate 90° to lock the lock block. Since the locking pin in this pin locking structure rotates around the symmetry center line of the locking pin in place to lock and unlock, the pin locking structure not only has good use stability, but also has a large tensile strength when the pin locking structure is in the locked state; in addition, since the lock block will be subjected to a large pulling force after locking, the resistance to the rotation of the locking pin (about dozens of Newtons) will be very large. The locking pin rotates 90° to lock the lock block, that is, the output shaft of the motor rotates a very small angle to unlock. In this way, under the condition that parameters such as the motor speed and the gearbox reduction ratio remain unchanged, a larger torque can be output, and at the same time, the unlocking time can also be reduced.

[0007] 3. A limit sleeve is provided at the outer end of the locking pin, and an arc-shaped notch is provided on the limit sleeve. The design that the limit block is located in the notch is the third technical feature of the present invention. The purpose of this design is as follows: A limit sleeve is provided at the outer end of the locking pin, and an arc-shaped notch is provided on the limit sleeve. The limit block is located in the notch, and the radian of the arc-shaped notch is 90°. This can ensure the stability of the rotation angle of the locking pin.

[0008] 4. The design that when the locking groove in the locking member is inserted and matched with the inserting block in the base, the electric push rod pushes outwards until the locking pin hooks the hook head is the fourth technical feature of the present invention. The purpose of this design is as follows: when the locking groove in the locking member is inserted and matched with the inserting block in the base, and the electric push rod pushes outwards until the locking pin hooks the hook head. First, the lock head (hook head) structure in this locking structure is simple, which is convenient for the production of the locking member, and the installation accuracy requirement for the locking structure is relatively low (as long as the hook head can hook the locking pin).

[0009] 5. The design that the back surface of the locking block is provided with an elastic member mounting table and the elastic member is arranged on the mounting table is the fifth technical feature of the present invention. The purpose of this design is as follows: the function of the elastic member is to pop out the locking block and keep it in the popped state when unlocking, so as to realize the full-automatic opening of the base.

[0010] 6. The design that a limiting protrusion is arranged on one side of the locking block is the sixth technical feature of the present invention. The purpose of this design is as follows: after the locking block slides down a certain distance, the lower end surface of the limiting protrusion contacts the upper end surface of the cover plate, so as to prevent the locking block from sliding out of the cover body.

[0011] 7. The inductive element is a microswitch. The design that when the locking groove in the locking member is inserted and matched with the inserting block in the base, the stopper above the locking groove touches the microswitch is the seventh technical feature of the present invention. The purpose of this design is as follows: the microswitch is sensitive and stable in feeling, thus improving the use reliability of the commodity protection device.

[0012] 8. The design that a plurality of silica gel pads I are arranged on the lower end surface of the cover plate in the cover body, and a plurality of silica gel pads II corresponding to the silica gel pads I are arranged on the bottom of the accommodating groove in the base is the eighth technical feature of the present invention. The purpose of this design is as follows: after the cover body and the base are covered and locked with each other, the packing belt will be clamped between the silica gel pads I and the silica gel pads II, which can prevent the relative sliding between the commodity protection device and the packing belt, thus affecting the use effect of the commodity protection device; at the same time, since the silica gel pads I and the silica gel pads II have a certain elasticity, the silica gel pads I and the silica gel pads II can clamp packing belts with different thicknesses, thus improving the applicability of the commodity protection device.

[0013] Technical solution 1: A non-contact unlocking commodity protection device, comprising a cover body, a base and a circuit board. One side of the cover body is hinged to one side of the base through a hinge member, and the other side is connected to the corresponding side of the base through a locking member. A pin locking mechanism is provided inside the cover body, and the power unit in the pin locking mechanism can drive the lock pin to lock the lock head of the lock block in the locking member; An induction element is provided inside the cover body. When the lock groove in the locking member is inserted and matched with the insertion block in the base, the induction element will change the state signal; The circuit board is provided with a control unit and a signal transceiver processing unit. The signal output end of the induction element and the signal output end of the signal transceiver processing unit are respectively communicatively connected to the signal input end of the control unit, and the signal output end of the control unit is communicatively connected to the signal input end of the power unit.

[0014] Technical solution 2: A method for using a non-contact unlocking commodity protection device. Step 1: Locking. Place the packing belt in the receiving groove of the base. Then press the cover body, and the cover body will rotate around the shaft in the hinge member until the lock groove in the locking member is inserted and matched with the insertion block in the base. At the same time, during the downward pressing of the cover body, the locking member slides upward relative to the cover body until the locking member touches the induction element. At this time, the induction element will change the state signal and transmit this signal to the control unit. After receiving the signal, the control unit controls the power unit to drive the lock pin to lock the lock block, that is, the locking operation is completed; Step 2: Unlocking. The server sends an unlocking signal to the control unit through the signal transceiver processing unit. After receiving the unlocking signal, the control unit controls the power unit to drive the lock pin to disengage from the lock head. At this time, the lock block slides downward under the action of the restoring force of the elastic member. When the sliding lock block disengages from the lock groove and the insertion block, the base is opened. Then, the packing belt is removed from the receiving groove of the base, that is, the unlocking operation is completed.

[0015] Technical solution 3: A commodity protection system, comprising a server and a base station, and further comprising a non-contact unlocking commodity protection device. The server can send an unlocking signal to the non-contact unlocking commodity protection device through the base station.

[0016] Compared with the background technology, the non-contact unlocking commodity protection device of the present invention can perform remote full-automatic unlocking and can be used in occasions such as unmanned self-service cashiers; at the same time, the non-contact unlocking commodity protection device has the advantages of being convenient to use, safe, reliable, and good in applicability. Description of the drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the non-contact unlocking commodity protection device (unlocking state).

[0018] Figure 2 It is a cross-sectional structural schematic diagram of the non-contact unlocking commodity protection device (unlocking state).

[0019] Figure 3 It is Figure 2Schematic diagram of the sectional structure at B-B in the [device].

[0020] Figure 4 is Figure 2 Schematic diagram of the sectional structure at A-A in the [device].

[0021] Figure 5 Schematic diagram of the sectional structure of the non-contact unlocking commodity protection device (in the locked state).

[0022] Figure 6 is Figure 5 Schematic diagram of the sectional structure at D-D in the [device].

[0023] Figure 7 is Figure 5 Schematic diagram of the sectional structure at C-C in the [device].

[0024] Figure 8 Schematic diagram of the front three-dimensional structure of the lock block.

[0025] Figure 9 Schematic diagram of the rear three-dimensional structure of the lock block.

[0026] Figure 10 Schematic diagram of the structure when the lock head (the lock head is a hook head) and the lock pin are locked.

[0027] Figure 11 Schematic diagram of the three-dimensional structure of the non-contact unlocking commodity protection device during use. Detailed implementation mode

[0028] Example 1: Refer to the attached Figures 1-11 . A non-contact unlocking commodity protection device includes a cover body 1, a base 2, and a circuit board 3. One side of the cover body 1 is hinged to one side of the base 2 through a hinge member 4, and the other side is connected to the corresponding side of the base 2 through a locking member 5, that is, one side of the cover body 1 and the base 2 is hinged, and the other side is in a locked connection. A pin locking mechanism 6 is provided inside the cover body 1, and the power unit 61 in the pin locking mechanism 6 can drive the lock pin 62 to lock the lock head 52 of the lock block 51 in the locking member 5. The lock pin 62 and the lock head 52 can be locked by means of an insertion buckle or by a hook engagement method; an induction element 7 is provided inside the cover body 1, and the induction element 7 can be directly arranged on the circuit board 3. When the lock groove 53 in the locking member 5 is inserted and matched with the insertion block 21 in the base 2, the induction element 7 will change the state signal; a control unit and a signal transceiver processing unit are provided on the circuit board 3. The signal output end of the induction element 7 and the signal output end of the signal transceiver processing unit are respectively in communication connection with the signal input end of the control unit, that is, the signal output end of the induction element 7 and the signal output end of the signal transceiver processing unit are respectively in communication connection with the signal input end of the control unit through data lines, and the signal output end of the control unit is in communication connection with the signal input end of the power unit 61 through a data line.

[0029] The power unit 61 in the pin locking mechanism 6 is a motor (the motor can be a servo motor or a reduction motor), and the power output shaft of the power unit 61 is fixedly connected to the locking pin 62 through a coupling or a gear reduction box 63. The length of the radial cross-section of the locking pin 62 is greater than the width. The locking pin 62 is circular, and both sides of the front end section of the locking pin 62 are cut into planes. In this way, one pair of opposite sides of the front end section of the locking pin 62 is a plane, and the other pair of opposite sides is an arc surface. The distance between the two arc surfaces is greater than the distance between the two planes (that is, the length of the radial cross-section of the locking pin 62 is greater than the width); a locking groove 53 is provided at the lower end of the lock block 51 in the locking member 5, a lock head 52 is provided at the upper end, and a "convex"-shaped lock hole 54 is opened at the upper end of the lock head 52. The "convex"-shaped lock hole 54 penetrates through the front and back surfaces and the upper end surface of the lock head 52. The width of the narrow hole section in the "convex"-shaped lock hole 54 is greater than the width of the radial cross-section of the locking pin 62 and less than the length of the radial cross-section of the locking pin 62. The width of the wide hole section in the "convex"-shaped lock hole 54 is greater than the length of the radial cross-section of the locking pin 62. (That is, when the arc surface of the locking pin 62 faces the "convex"-shaped lock hole 54, the rod body of the locking pin 62 can pass through the narrow hole section of the "convex"-shaped lock hole 54 and enter the wide hole section of the "convex"-shaped lock hole 54, and the size of the wide hole section can enable the locking pin 62 to rotate); after the rod body of the locking pin 62 passes through the narrow hole section of the "convex"-shaped lock hole 54 and is located in the wide hole section of the "convex"-shaped lock hole 54, the power unit 61 drives the locking pin 62 to rotate 90° (at this time, the plane of the locking pin 62 faces the narrow hole section of the "convex"-shaped lock hole 54. Since the distance between the two arc surfaces of the locking pin 62 is greater than the width of the narrow hole section at this time, the lock block 51 is locked by the locking pin 62) to lock the lock block 51 with the locking pin 62; the server sends an unlocking signal to the control unit through the signal transceiver processing unit. After receiving the unlocking signal, the control unit controls the power unit 61 to drive the locking pin 62 to rotate reversely by 90°. At this time, the arc surface of the locking pin 62 faces the narrow hole section of the "convex"-shaped lock hole 54. Since the distance between the two planes of the locking pin 62 is less than the width of the narrow hole section at this time, the lock block 51 slides downward under the restoring force of the elastic member 56. The sliding lock block 51 first realizes its separation from the locking pin 62, and then the sliding lock block 51 separates the lock groove 53 from the insertion block 21 to open the base 2, and then the packing tape is removed from the receiving groove 22 of the base 2, that is, the unlocking operation is completed.

[0030] A limiting block 8 is fixedly installed in the cover body 1. A limiting sleeve 9 is provided at the outer end of the locking pin 62, and an arc-shaped notch 91 is provided on the limiting sleeve 9. The limiting block 8 is located in the arc-shaped notch 91, and the radian of the arc-shaped notch 91 is 90°.

[0031] The power unit 61 in the pin locking mechanism 6 is an electric push rod, and a locking pin 62 is provided at the front end of the telescopic rod in the electric push rod, or the telescopic rod in the electric push rod is the locking pin 62; a locking groove 53 is provided at the lower end of the locking block 51 in the locking member 5, a locking head 52 is provided at the upper end, and the locking head 52 is a hook head; when the locking groove 53 in the locking member 5 is inserted and matched with the insertion block 21 in the base 2, the electric push rod is pushed outwards until the locking pin 62 hooks the hook head; the server sends an unlocking signal to the control unit through the signal transceiver processing unit, and after receiving the unlocking signal, the control unit controls the power unit 61 to drive the locking pin 62 to retract, so that the hook head and the locking pin 62 are disengaged. At this time, the locking block 51 slides downwards under the restoring force of the elastic member 56. When the sliding locking block 51 disengages the locking groove 53 from the insertion block 21, the base 2 is opened, and then the packing tape is removed from the receiving groove 22 of the base 2, that is, the unlocking operation is completed.

[0032] An elastic member mounting table 55 is provided on the back surface of the locking block 51, and an elastic member 56 is provided on the mounting table 55. The elastic member 56 is arranged in the movable groove 13. One end of the elastic member 56 contacts the inner wall of the cover body 1, and the other end contacts the upper end surface of the mounting table 55. Its function is to pop up the locking block 51 and keep it in the popped-up state when unlocking; the elastic member 56 is a spring. A limiting protrusion 57 is provided on one side of the locking block 51. After the locking block 51 slides down a certain distance, the lower end surface of the limiting protrusion 57 contacts the upper end surface of the cover plate 11 to prevent the locking block 51 from sliding out of the cover body 1. The sensing element 7 is a microswitch, and when the locking groove 53 in the locking member 5 is inserted and matched with the insertion block 21 in the base 2, the stopper above the locking groove 53 touches the microswitch. A plurality of first silica gel pads 12 are provided on the lower end surface of the cover plate 11 in the cover body 1, and a plurality of second silica gel pads 23 corresponding to the first silica gel pads 12 are provided at the bottom of the receiving groove 22 in the base 2. The two vertically corresponding silica gel pads (the corresponding first silica gel pad 12 and the second silica gel pad 23) are respectively adhered to the cover plate 11 and the base 2, and their function is to clamp the packing tape. The signal transceiver processing unit in this device can implement technologies such as RFID communication technology, Bluetooth communication, 2.4GHz communication, EAS (RF8.2MH frequency or AM58KHz) communication, and infrared signal communication. A frequency element is provided in the cover body 1.

[0033] Embodiment 2: Based on Embodiment 1. A method for using a non-contact unlocking commodity protection device. Step 1: Locking. After the packing tape is accommodated in the accommodation groove 22 of the base 2, the base 2 contacts the surface of the commodity. Then, the cover body 1 is pressed and the cover body 1 rotates around the shaft in the hinge member 4. At this time, the locking member 5 will gradually approach the base 2 until the locking groove 53 in the locking member 5 is inserted and matched with the insertion block 21 of the base 2. At the same time, during the downward pressing of the cover body 1, the locking member 5 slides upward relative to the cover body 1 until the locking member 5 touches the sensing element 7. During the inward sliding of the locking member 5 and the energy storage of the elastic member 56, at this time, the sensing element 7 will change the state signal and the sensing element 7 will transmit this signal to the control unit. After receiving the signal, the control unit controls the power unit 61 to drive the lock pin 62 to lock the lock block 51, that is, the locking operation is completed. Step 2: Unlocking. The server sends an unlocking signal to the control unit through the signal transceiver processing unit. After receiving the unlocking signal, the control unit controls the power unit 61 to drive the lock pin 62 to disengage from the lock head 52. At this time, the lock block 51 slides downward under the action of the restoring force of the elastic member 56. When the sliding lock block 51 disengages the locking groove 53 and the insertion block 21 from each other, the base 2 is opened. Then, the packing tape is removed from the accommodation groove 22 of the base 2, that is, the unlocking operation is completed.

[0034] Embodiment 3: Based on Embodiments 1 and 2. A commodity protection system includes a server and a base station. The feature is that it further includes a non-contact unlocking commodity protection device, and the server can send an unlocking signal to the non-contact unlocking commodity protection device through the base station.

[0035] It should be understood that although the above embodiments have made relatively detailed written descriptions of the design concept of the present invention, these written descriptions are only simple written descriptions of the design concept of the present invention, rather than limitations on the design concept of the present invention. Any combination, addition or modification that does not exceed the design concept of the present invention falls within the protection scope of the present invention.

Claims

1. A non-contact unlocking commodity protection device, comprising a cover body (1), a base (2) and a circuit board (3). One side of the cover body (1) is hinged to one side of the base (2) through a hinge member (4), and the other side is connected to the corresponding side of the base (2) through a locking member (5). It is characterized in that: A pin locking mechanism (6) is provided inside the cover body (1), and a power unit (61) in the pin locking mechanism (6) can drive a lock pin (62) to lock the lock head (52) of a lock block (51) in the locking member (5); an induction element (7) is provided inside the cover body (1), and when a lock groove (53) in the locking member (5) is inserted and matched with an insertion block (21) in the base (2), the induction element (7) will change the state signal; a control unit and a signal transceiver and processing unit are provided on the circuit board (3). The signal output end of the induction element (7) and the signal output end of the signal transceiver and processing unit are respectively communicatively connected to the signal input end of the control unit, and the signal output end of the control unit is communicatively connected to the signal input end of the power unit (61); the power unit (61) in the pin locking mechanism (6) is a motor, and the power output shaft of the power unit (61) is fixedly connected to the lock pin (62) through a coupling or a gear reduction box (63). The length of the radial cross-section of the lock pin (62) is greater than the width; a lock groove (53) is provided at the lower end of the lock block (51) in the locking member (5), a lock head (52) is provided at the upper end, and a "convex"-shaped lock hole (54) is opened at the upper end of the lock head (52). The width of the narrow hole section in the "convex"-shaped lock hole (54) is greater than the width of the radial cross-section of the lock pin (62) and the width of the narrow hole section is less than the length of the radial cross-section of the lock pin (62). The width of the wide hole section in the "convex"-shaped lock hole (54) is greater than the length of the radial cross-section of the lock pin (62); after the rod body of the lock pin (62) passes through the narrow hole section of the "convex"-shaped lock hole (54) and is located in the wide hole section of the "convex"-shaped lock hole (54), the power unit (61) drives the lock pin (62) to rotate 90° to lock the lock block (51); the induction element (7) is a microswitch.

2. The non-contact unlocking commodity protection device according to claim 1, It is characterized in that: A limiting block (8) is fixedly installed inside the cover body (1). A limiting sleeve (9) is provided at the outer end of the lock pin (62), and an arc-shaped notch (91) is provided on the limiting sleeve (9). The limiting block (8) is located in the notch (91).

3. The non-contact unlocking commodity protection device according to claim 1, It is characterized in that: The power unit (61) in the pin locking mechanism (6) is an electric push rod, and the front end of the telescopic rod in the electric push rod is provided with a lock pin (62) or the telescopic rod in the electric push rod is the lock pin (62); the lower end of the lock block (51) in the locking member (5) is provided with a lock groove (53), the upper end is provided with a lock head (52), and the lock head (52) is a hook head; when the lock groove (53) in the locking member (5) is inserted and matched with the insertion block (21) in the base (2), the electric push rod is pushed outwards until the lock pin (62) hooks the hook head.

4. The non-contact unlocking commodity protection device according to claim 1 or 3, characterized in that: an elastic member mounting platform (55) is provided on the back surface of the lock block (51), and an elastic member (56) is provided on the mounting platform (55).

5. The non-contact unlocking commodity protection device according to claim 1 or 3, characterized in that: a limiting protrusion (57) is provided on one side of the lock block (51).

6. The non-contact unlocking commodity protection device according to claim 1, characterized in that: when the lock groove (53) in the locking member (5) is inserted and matched with the insertion block (21) in the base (2), the stopper above the lock groove (53) touches the micro switch.

7. The non-contact unlocking commodity protection device according to claim 1, characterized in that: a plurality of first silicone pads (12) are provided on the lower end surface of the cover plate (11) in the cover body (1), and a plurality of second silicone pads (23) corresponding to the first silicone pads (12) are provided on the bottom of the receiving groove (22) in the base (2).

8. A method for using the non-contact unlocking commodity protection device as described in claims 1-7, characterized in that: Step 1: Locking. The packing belt is accommodated in the receiving groove (22) of the base (2), and then the cover body (1) is pressed, and the cover body (1) rotates around the shaft in the hinge member (4) until the lock groove (53) in the locking member (5) is inserted and matched with the insertion block (21) in the base (2). At the same time, during the downward pressing of the cover body (1), the locking member (5) slides upward relative to the cover body (1) until the locking member (5) touches the sensing element (7). At this time, the sensing element (7) will change the state signal and transmit this signal to the control unit. After receiving the signal, the control unit controls the power unit (61) to drive the lock pin (62) to lock the lock block (51), that is, the locking operation is completed; Step 2: Unlocking. The server sends an unlocking signal to the control unit through the signal transceiver processing unit. After receiving the unlocking signal, the control unit controls the power unit (61) to drive the lock pin (62) to disengage from the lock head (52). At this time, the lock block (51) slides downward under the restoring force of the elastic member (56). When the sliding lock block (51) disengages the lock groove (53) from the insertion block (21), the base (2) is opened, and then the packing belt is removed from the receiving groove (22) of the base (2), that is, the unlocking operation is completed.

9. A commodity protection system, including a server and a base station, characterized in that: it further includes the non-contact unlocking commodity protection device as described in any one of claims 1-7, and the server can send an unlocking signal to the non-contact unlocking commodity protection device through the base station.

Images