Door lock with locking detection function and intelligent vending refrigerator

Abstract

The utility model relates to a door lock with a locking detection function and an intelligent vending refrigerator, and belongs to the technical field of refrigerating and freezing equipment. The door lock with the locking detection function comprises a lock hook, a lock body, a lock hook in-place monitoring assembly and a lock tongue position monitoring assembly. The lock body comprises a lock shell and a lock cylinder. The inner space of the lock shell is divided into a lock cylinder area and a lock hook connecting area. The lock cylinder is installed in the lock cylinder area and comprises a spring bolt which does linear reciprocating motion between a locking position and an unlocking position. The lock hook in-place monitoring assembly comprises a magnet and a magnetic sensor, the magnet is arranged in the lock hook, and the magnetic sensor is arranged in the lock cylinder area; the spring bolt position monitoring assembly comprises a shielding piece and a photoelectric sensor, the shielding piece is installed on the spring bolt so as to move along with the spring bolt, and the photoelectric sensor is arranged in the lock cylinder area. According to the door lock with the locking detection function, the in-place condition of the spring bolt is monitored, the in-place condition of the lock hook is also monitored, and the reliability of locking monitoring is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigeration and freezing equipment, and in particular relates to a door lock with a lock detection function and an intelligent vending refrigerator. Background Art

[0002] In recent years, unmanned smart vending machines have met people's pursuit of flexible, convenient and fast shopping experiences, becoming a new retail hotspot. In particular, smart vending machines in the form of refrigerators have been widely used in supermarkets.

[0003] For smart vending refrigerators, in order to ensure the safety of the refrigerators in unmanned vending environments and the anti-theft of goods, door locks are usually equipped to control the opening and closing status of the door body. However, if the lock tongue of the door lock is not locked in place, it may cause the risk of goods being stolen. Therefore, it is usually necessary to perform lock monitoring to ensure that the lock tongue is locked in place. At present, the most commonly used lock monitoring method is to use a photoelectric sensor to cut off the light sensing signal of the photoelectric sensor when the lock tongue reaches the locked position to achieve the monitoring of whether the lock tongue is locked in place, such as the lock tongue position detection device disclosed in patent CN202928596U; however, if only the lock tongue position is monitored, there may be a situation where the lock tongue is extended in place, but the mating piece that cooperates with the lock tongue is not in place, resulting in the lock tongue not being locked, causing a misjudgment.

[0004] Therefore, how to improve the reliability of door lock monitoring for smart vending refrigerators is a technical problem that urgently needs to be solved. Utility Model Content

[0005] In view of the above technical problems, the utility model provides a door lock and an intelligent vending refrigerator with a lock detection function. The door lock monitors the position of the lock tongue and the position of the lock hook, thereby improving the reliability of lock monitoring.

[0006] The utility model provides a door lock with a lock detection function, comprising:

[0007] Lock hook;

[0008] The lock body includes a lock shell and a lock core; the inner space of the lock shell is divided into a lock core area and a lock hook connection area, and the lock shell is provided with a lock opening connected to the lock hook connection area so that the lock hook can be inserted into the lock hook connection area; the lock core is installed in the lock core area, and the lock core includes a lock tongue that performs linear reciprocating motion between a locking position and an unlocking position; when the lock tongue moves to the locking position, one end of the lock tongue extends into the lock hook connection area to lock with the lock hook; when the lock tongue moves to the unlocking position, the lock tongue retracts into the lock core area to unlock;

[0009] The lock hook in place monitoring component includes a magnet and a magnetic sensor. The magnet is arranged in the lock hook, and the magnetic sensor is arranged in the lock core area. When the lock hook is fully extended into the lock hook connection area, the magnetic sensor and the magnet are close to each other to generate a magnetic induction signal. When the lock hook leaves the lock hook connection area, the magnetic sensor and the magnet are separated from each other to make the magnetic induction signal disappear.

[0010] A lock tongue position monitoring component includes a shielding member and a photoelectric sensor. The shielding member is installed on the lock tongue to move with the lock tongue. The photoelectric sensor is arranged in the lock core area. When the lock tongue moves to the locking position, the shielding member is located on the optical path of the photoelectric sensor to cut off the light sensing signal of the photoelectric sensor. When the lock tongue leaves the locking position, the shielding member leaves the optical path of the photoelectric sensor to restore the light sensing signal.

[0011] In some of the embodiments, a control circuit board is also installed in the lock core area. The control circuit board is configured with a processor for controlling the movement of the lock tongue. The magnetic sensor and the photoelectric sensor are both installed on the control circuit board and electrically connected to the processor.

[0012] In some of the embodiments, the door lock also includes a door body connector, the lock hook is installed on the door body connector, and the door body connector is also installed with an RFID chip; the control circuit board is configured with an RFID sensor chip that generates an induction signal with the RFID chip, and the RFID sensor chip is electrically connected to the processor.

[0013] In some of the embodiments, a partition block is provided in the lock housing, the partition block divides the lock housing into a lock core area and a lock hook connection area, and the partition block is provided with a through hole for the lock tongue to pass through.

[0014] In some of the embodiments, the magnetic sensor is disposed close to the partition block, and the magnet is correspondingly disposed on a side of the lock hook close to the partition block.

[0015] In some of these embodiments, the magnet is a magnet.

[0016] In some of the embodiments, the shielding member is disposed at an end of the lock tongue away from the partition block, and the photoelectric sensor is correspondingly disposed at an end of the lock core area away from the partition block.

[0017] In some of the embodiments, the photoelectric sensor has a transmitting end and a receiving end that are relatively arranged; the shielding member includes a mounting portion fixedly mounted on the outer periphery of the lock tongue and a shielding portion connected to one side of the mounting portion, the width of the shielding portion is smaller than the distance between the transmitting end and the receiving end, and the shielding portion is inserted between the transmitting end and the receiving end when the lock tongue moves to the locking position to cut off the light sensing signal of the photoelectric sensor.

[0018] In addition, the utility model also provides an intelligent vending refrigerator, including a cabinet body and a cabinet door connected to the cabinet body, and a door lock with a lock detection function as described in any of the above technical solutions is arranged between the cabinet body and the cabinet door, wherein the lock body is installed on the cabinet body and located on the inner wall of the cabinet body facing the storage space, and the lock hook is correspondingly installed on the cabinet door.

[0019] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0020] 1. The door lock with a lock detection function provided by the utility model can monitor whether the lock hook is in place through the provided lock hook position monitoring component, and can monitor whether the lock tongue reaches the locking position through the provided lock tongue position monitoring component, thereby avoiding misjudgment caused by only the lock tongue being in place but the lock hook not being in place, and improving the reliability of lock monitoring;

[0021] 2. The intelligent vending refrigerator provided by the utility model has a high reliability in the lock monitoring of the door lock, and the door lock is arranged inside the cabinet, which is highly concealed and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 This is a structural schematic diagram of an embodiment of a door lock with a lock detection function of the utility model when it is in a locked state;

[0024] Figure 2 For along Figure 1 Sectional view along line AA;

[0025] Figure 3 This is a structural schematic diagram of an embodiment of a door lock with a lock detection function of the utility model when it is in an unlocked state;

[0026] Figure 4 This is a control principle block diagram of a processor, a photoelectric sensor, a magnetic sensor, an RFID sensor sheet, and an electromagnet in one embodiment of a door lock with a lock detection function of the utility model;

[0027] Figure 5 This is a schematic diagram of an interface of a processor in an embodiment of a door lock with a lock detection function of the utility model;

[0028] Figure 6 This is a circuit schematic diagram of a photoelectric sensor in one embodiment of a door lock with a lock detection function of the utility model;

[0029] Figure 7This is a circuit schematic diagram of controlling a magnetic sensor in one embodiment of a door lock with a lock detection function of the utility model;

[0030] Figure 8 This is a circuit schematic diagram of a control electromagnet in one embodiment of a door lock with a lock detection function of the utility model;

[0031] Fig. 9 This is a schematic structural diagram of an embodiment of the intelligent vending refrigerator of the utility model.

[0032] In the figure:

[0033] 1. Door lock; 2. Cabinet body; 3. Cabinet door;

[0034] 11. Lock hook; 12. Lock body; 13. Control circuit board; 14. Lock tongue position monitoring component; 15. RFID sensor chip; 16. Processor; 17. Lock hook in place monitoring component; 18. Door body connector; 19. RFID chip;

[0035] 121, lock housing; 122, lock core; 1221, lock tongue; 1222, electromagnet; 123, partition block;

[0036] 141, shielding member; 1411, shielding portion; 1412, mounting portion; 142, photoelectric sensor; 1421, transmitting end; 1422, receiving end;

[0037] 171. magnet; 172. magnetic sensor;

[0038] a. Lock core area; b. Lock hook connection area. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be understood that the terms "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1-Figure 3 As shown, in an illustrative embodiment of the door lock 1 with a lock detection function of the utility model, the door lock 1 with a lock detection function includes a lock hook 11, a lock body 12, a lock hook in place monitoring component 17 and a lock tongue position monitoring component 14; the lock body 12 includes a lock shell 121 and a lock core 122; the internal space of the lock shell 121 is divided into a lock core area a and a lock hook connection area b, and the lock shell 121 is provided with a lock port connected to the lock hook connection area b, so that the lock hook 11 can be extended to the lock hook connection area b The lock core 122 is installed in the lock core area a, and the lock core 122 includes a lock tongue 1222 that performs linear reciprocating motion between the locking position and the unlocking position; when the lock tongue 1222 moves to the locking position, one end of the lock tongue 1222 extends into the lock hook connection area b to lock with the lock hook 11; when the lock tongue 1222 moves to the unlocking position, the lock tongue 1222 retracts into the lock core area a to unlock; the lock hook in place monitoring component 17 includes a magnet 171 and a magnetic sensor 172, and the magnet 171 is arranged on the lock hook 1 1, the magnetic sensor 172 is arranged in the lock core area a, when the lock hook 11 is fully extended into the lock hook connection area b, the magnetic sensor 172 and the magnet 171 are close to each other to generate a magnetic induction signal as a lock hook 11 in place signal, when the lock hook 11 leaves the lock hook connection area b, the magnetic sensor 172 and the magnet 171 are away from each other to make the magnetic induction signal disappear; the lock tongue position monitoring component 14 includes a shielding member 141 and a photoelectric sensor 142, the shielding member 141 is installed on the lock tongue 1 222 moves with the lock tongue 1222, and the photoelectric sensor 142 is set in the lock core area a. When the lock tongue 1222 moves to the locking position, the shielding member 141 is located in the optical path of the photoelectric sensor 142 to cut off the light sensing signal of the photoelectric sensor 142 as a signal that the lock tongue 1222 is in the locking position. When the lock tongue 1222 leaves the locking position, the shielding member 141 leaves the optical path of the photoelectric sensor 142 to restore the light sensing signal as a signal that the lock tongue 1222 is in the unlocking position.

[0043] The door lock 1 with the lock detection function can monitor whether the lock hook 11 is in place through the lock hook in place monitoring component 17, and can monitor whether the lock tongue 1222 reaches the locking position through the lock tongue position monitoring component 14, thereby avoiding the misjudgment caused by only the lock tongue 1222 being in place but the lock hook 11 not being in place, and improving the reliability of lock monitoring.

[0044] like Figure 1 , Figure 3 and Figure 4 As shown, in order to facilitate the control of the movement of the lock tongue 1222 and obtain the monitoring results of the magnetic sensor 172 and the photoelectric sensor 142, in this embodiment, a control circuit board 13 is also installed in the lock core area a, and the control circuit board 13 is configured with a processor 16 for controlling the movement of the lock tongue 1222. The magnetic sensor 172 and the photoelectric sensor 142 are both installed on the control circuit board 13 and electrically connected to the processor 16. It should be noted that, as Figure 1 and Figure 3 As shown, in this embodiment, in order to facilitate the control of the reciprocating motion of the lock tongue 1222, in this embodiment, the lock core 122 also includes an electromagnet 1222, and the lock tongue 1222 is sleeved in the electromagnet 1222; the processor 16 is electrically connected to the coil of the electromagnet 1222. It should also be noted that in this embodiment, the processor 16 can perform lock judgment, and its lock judgment procedure is: after the processor 16 receives the lock command, it determines whether the photoelectric sensor 142 detects the signal that the lock tongue 1222 is in the locking position, and whether the magnetic sensor 172 detects the lock hook 11 in place signal; when the processor 16 receives the signal that the lock tongue 1222 is in the locking position detected by the photoelectric sensor 142, and the processor 16 receives the lock hook 11 in place signal detected by the magnetic sensor 172, it determines that the lock is in place, otherwise, it is determined that the lock is not in place; when it is determined that the lock is not in place, the processor 16 sends an alarm signal. It should be further noted that in this embodiment, the processor 16 adopts an existing MCU chip, and its interface diagram is shown in Figure 5 As shown, the LOOK1 interface of the MCU chip is an interface for connecting the photoelectric sensor 142, the CIGAN interface is an interface for connecting the magnetic sensor 172, and the LOCK_W interface is an interface for connecting the electromagnet 1222. The photoelectric sensor 142 adopts an existing model photoelectric sensor, and the circuit schematic diagram of the MCU chip controlling the photoelectric sensor 142 is shown in Figure 6 As shown; the magnetic sensor 172 adopts an existing model magnetic sensor, and the circuit schematic diagram of the MCU chip controlling the magnetic sensor 172 is as shown Figure 7 As shown; the electromagnet 1222 is a prior art, and the circuit schematic diagram of the MCU chip controlling the electromagnet 1222 is as shown Figure 8 shown.

[0045] like Figure 1 , Figure 3 and Figure 4As shown, in order to avoid the problem of fraudulent locking, in this embodiment, the door lock 1 also includes a door body connector 18, the lock hook 11 is installed on the door body connector 18, and the door body connector 18 is also installed with an RFID chip 19; the control circuit board 13 is configured with an RFID sensor sheet 15 that generates an induction signal with the RFID chip 19, and the RFID sensor sheet 15 is electrically connected to the processor 16. When the RFID sensor sheet 15 generates an induction signal with the RFID chip 19, the RFID sensor sheet 15 outputs a lock instruction to the processor 16, thereby preventing fraudulent locking. It should be noted that the use of the RFID chip 19 to control the lock instruction is an existing technology used in smart vending refrigerators, such as patent CN111305655A, and the specific working process will not be repeated here. It should be noted that, as Figure 5 As shown, the RPI interface of the MCU chip is an interface for connecting the RFID sensor sheet 15 .

[0046] like Figure 1 As shown, in this embodiment, a partition block 123 is provided in the lock housing 121, and the partition block 123 divides the lock housing 121 into a lock core area a and a lock hook connection area b, and the partition block 123 is provided with a through hole for the lock tongue 1222 to pass through. In this embodiment, the partition block 123 is provided to facilitate the separation of the lock core area a and the lock hook connection area b, and at the same time, the through hole provided by the partition block 123 can limit the movement direction of the lock tongue 1222.

[0047] like Figure 1 As shown, in order to ensure the induction effect between the magnetic sensor 172 and the magnet 171, in this embodiment, the magnetic sensor 172 is arranged close to the partition block 123, and the magnet 171 is correspondingly arranged on the side of the lock hook 11 close to the partition block 123. It should be noted that in this embodiment, the magnet 171 is specifically a magnet.

[0048] like Figure 1 As shown, in order to avoid interference between the photoelectric sensor 142 and the magnetic sensor 172, in this embodiment, the shielding member 141 is arranged at the end of the lock tongue 1222 away from the partition block 123, and the photoelectric sensor 142 is correspondingly arranged at the end of the lock core area a away from the partition block 123.

[0049] like Figure 2As shown, in this embodiment, the photoelectric sensor 142 has a transmitting end 1421 and a receiving end 1422 that are arranged opposite to each other; the shielding member 141 includes a mounting portion 1412 fixedly mounted on the outer periphery of the lock tongue 1222 and a shielding portion 1411 connected to one side of the mounting portion 1412, the width of the shielding portion 1411 is smaller than the distance between the transmitting end 1421 and the receiving end 1422, and the shielding portion 1411 is inserted between the transmitting end 1421 and the receiving end 1422 when the lock tongue 1222 moves to the locking position to cut off the light sensing signal of the photoelectric sensor 142. The shielding member 141 with the above structure can better cooperate with the photoelectric sensor 142 to ensure the accuracy of the monitoring results.

[0050] Based on the above-mentioned door lock 1 with a lock detection function, the utility model further provides an intelligent vending refrigerator, comprising a cabinet body 2 and a cabinet door 3 connected to the cabinet body 2, wherein the above-mentioned door lock 1 with a lock detection function is arranged between the cabinet body 2 and the cabinet door 3, wherein the lock body 12 is installed on the cabinet body 2 and located on the inner wall of the cabinet body 2 facing the storage space, and the lock hook 11 is correspondingly installed on the cabinet door 3. The intelligent vending refrigerator has high reliability in lock monitoring of the door lock 1, and the door lock 1 is arranged inside the cabinet, which is highly concealed and safe.

[0051] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0052] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A door lock with a lock detection function, characterized in that: include: Lock hook; The lock body comprises a lock shell and a lock core; the inner space of the lock shell is divided into a lock core area and a lock hook connection area; the lock shell is provided with a lock opening which is in communication with the lock hook connection area so as to allow the lock hook to extend into the lock hook connection area; the lock core is installed in the lock core area, and the lock core comprises a lock tongue which performs linear reciprocating motion between a locking position and an unlocking position; when the lock tongue moves to the locking position, one end of the lock tongue extends into the lock hook connection area to lock with the lock hook; when the lock tongue moves to the unlocking position, the lock tongue retracts into the lock core area to unlock; A lock hook in place monitoring component, comprising a magnet and a magnetic sensor, wherein the magnet is arranged in the lock hook, and the magnetic sensor is arranged in the lock core area. When the lock hook is fully extended into the lock hook connection area, the magnetic sensor and the magnet are close to each other to generate a magnetic induction signal. When the lock hook leaves the lock hook connection area, the magnetic sensor and the magnet are away from each other to make the magnetic induction signal disappear. A lock tongue position monitoring component comprises a shielding member and a photoelectric sensor, wherein the shielding member is mounted on the lock tongue to move with the lock tongue, and the photoelectric sensor is arranged in the lock core area. When the lock tongue moves to the locking position, the shielding member is located on the optical path of the photoelectric sensor to cut off the light sensing signal of the photoelectric sensor. When the lock tongue leaves the locking position, the shielding member leaves the optical path of the photoelectric sensor to restore the light sensing signal.

2. The door lock with lock detection function according to claim 1, characterized in that: A control circuit board is also installed in the lock core area. The control circuit board is configured with a processor for controlling the movement of the lock tongue. The magnetic sensor and the photoelectric sensor are both installed on the control circuit board and electrically connected to the processor.

3. The door lock with lock detection function according to claim 2, characterized in that: The door lock also includes a door body connector, the lock hook is installed on the door body connector, and the door body connector is also installed with an RFID chip; the control circuit board is configured with an RFID sensor chip that generates an induction signal with the RFID chip, and the RFID sensor chip is electrically connected to the processor.

4. The door lock with lock detection function according to claim 1, characterized in that: A partition block is arranged in the lock housing, and the partition block divides the lock housing into the lock core area and the lock hook connection area. The partition block is provided with a through hole for the lock tongue to pass through.

5. The door lock with lock detection function according to claim 4, characterized in that: The magnetic sensor is arranged close to the partition block, and the magnet is correspondingly arranged on a side of the lock hook close to the partition block.

6. The door lock with lock detection function according to claim 1 or 5, characterized in that: The magnet is a magnet.

7. The door lock with lock detection function according to claim 4, characterized in that: The shielding member is arranged at one end of the lock tongue away from the partition block, and the photoelectric sensor is correspondingly arranged at one end of the lock core area away from the partition block.

8. The door lock with lock detection function according to claim 1 or 7, characterized in that: The photoelectric sensor has a transmitting end and a receiving end that are relatively arranged; the shielding member includes a mounting portion fixedly sleeved on the outer periphery of the lock tongue and a shielding portion connected to one side of the mounting portion, the width of the shielding portion is smaller than the distance between the transmitting end and the receiving end, and the shielding portion is inserted between the transmitting end and the receiving end when the lock tongue moves to the locking position to cut off the light sensing signal of the photoelectric sensor.

9. An intelligent vending refrigerator, comprising a cabinet body and a cabinet door connected to the cabinet body, characterized in that: A door lock with a lock detection function as described in any one of claims 1 to 8 is arranged between the cabinet body and the cabinet door, wherein the lock body is installed on the cabinet body and located on the inner wall of the cabinet body facing the storage space, and the lock hook is correspondingly installed on the cabinet door.

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