Door lock of automatic vending cabinet
By designing an automatic vending machine door lock, the user's identity is identified through QR code scanning and the electromagnet is controlled to automatically open the door, solving the problem of complex manual operation in existing technologies and improving shopping convenience and efficiency.
Patent Information
- Application Number
- CN202520162842.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing vending machine door locks require manual unlocking and closing, have a low degree of automation, and increase the complexity and time cost of shopping.
Design an automatic vending machine door lock that identifies the user by scanning a QR code and controls an electromagnet to automatically open the door. The use of a limit block and a counterweight simplifies the user operation.
Users can automatically open the vending machine door without manual operation, simplifying the shopping process and improving shopping convenience and efficiency.
Smart Images

Figure CN223838839U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vending machine accessories technology, and in particular to an automatic vending machine door lock. Background Technology
[0002] As a crucial component of vending machine security, the design and selection of vending machine door locks directly impact the anti-theft effect on merchandise and the user experience. The primary function of vending machine door locks is to prevent theft and ensure the safety of goods inside the vending machine. A high-quality lock can effectively reduce the risk of theft, thereby protecting the interests of the merchant.
[0003] Existing vending machine door locks mostly require manual unlocking and closing, resulting in low automation. Users need to manually unlock and close the locks, increasing the complexity and time cost of shopping. Especially in urgent or time-sensitive situations, users may find the cumbersome operation inconvenient. Therefore, we propose an automated vending machine door lock. Summary of the Invention
[0004] The main purpose of this utility model is to propose an automatic vending machine door lock to solve the defects of existing vending machine door locks that require manual unlocking and closing operations.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] This utility model relates to an automatic vending machine door lock, comprising a cabinet body with an opening on one side, a cabinet door installed on the opening side of the cabinet body, one end of the cabinet door being hinged to the cabinet body, the cabinet door being able to block the opening side of the cabinet body, and an actuating element provided on the side of the cabinet door facing the cabinet body, the actuating element being block-shaped and L-shaped.
[0007] A movable rod is installed inside the cabinet. A connecting shaft is fixedly installed on the movable rod facing upwards. One end of the connecting shaft is rotatably installed inside the cabinet. A weight bar is fixedly installed at the bottom of the movable rod. The weight bar and the movable rod are integrated. The center of gravity of the integrated structure formed by the weight bar and the movable rod is located at the weight bar. The movable rod is configured to cooperate with the trigger, which can drive the movable rod to rotate around the connecting shaft. A support block is fixedly installed inside the cabinet. A limit block is provided at the upper end of the support block. The limit block is configured to cooperate with the weight bar. The limit block is used to limit the weight bar. A movable mechanism is provided on the support block. The movable mechanism is connected to the limit block. The movable mechanism is used to support the limit block and can drive the limit block to move up and down.
[0008] As a preferred embodiment of this utility model, a handle is fixedly installed on the outside of the cabinet door.
[0009] As a preferred embodiment of this utility model, a reinforcing rib is fixedly installed on the inner side of the trigger, and the ends of the reinforcing rib are all fixedly connected to the trigger.
[0010] As a preferred embodiment of this utility model, the movable mechanism includes two spaced guide rods, both of which pass through the support block. The upper ends of the guide rods are fixedly connected to the limiting block. The lower end of the support block is provided with a limiting piece, which is fixedly connected to the bottom of the two guide rods. An elastic element is provided between the limiting block and the support block, with both ends of the elastic element fixedly connected to the limiting block and the support block, respectively.
[0011] As a preferred embodiment of this utility model, the movable mechanism further includes a magnet, which is fixedly installed on the limiting plate, and an electromagnet is fixedly installed at the bottom of the support block. When the electromagnet is energized, it can apply a repulsive force to the magnet.
[0012] As a preferred embodiment of this utility model, a door lock control device is installed on the outside of the cabinet, the door lock control device is electrically connected to an external back-end management system, and the electromagnet is electrically connected to the door lock control device.
[0013] The beneficial effects of this utility model are:
[0014] This type of automatic vending machine door lock uses a door lock control device to operate an electromagnet. By separating the limit block from the counterweight, the door switches from closed to open. Users do not need to manually operate the lock; they can automatically open the vending machine door simply by scanning a QR code. This greatly simplifies the shopping process and improves user convenience. The automatic door lock responds quickly to user input, reducing waiting time and allowing users to complete the shopping process faster, thus improving shopping efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0016] Figure 1 This is a structural schematic diagram of an automatic vending machine door lock according to this utility model;
[0017] Figure 2 This is a schematic diagram of the operation of an automatic vending machine door lock according to this utility model;
[0018] Figure 3This is an enlarged schematic diagram of a portion of the structure of the weight bar of an automatic vending machine door lock according to this utility model;
[0019] Figure 4 This is a top view of a portion of the structure of the trigger, movable rod, and limiting block of an automatic vending machine door lock according to this utility model;
[0020] Figure 5 This is an enlarged schematic diagram of a portion of the structure of the weight bar when the door of an automatic vending machine lock is closed, according to this utility model.
[0021] In the diagram: Cabinet 1, Cabinet door 2, Actuating element 3, Movable rod 4, Connecting shaft 5, Weighting rod 6, Support block 7, Limiting block 8, Reinforcing rib 9, Guide rod 101, Limiting plate 102, Elastic element 103, Magnet 104, Electromagnet 105, Door lock control device 201.
[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.
[0025] Example 1
[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an automatic vending machine door lock of this utility model includes a cabinet body 1 with an opening on one side, a cabinet door 2 installed on the opening side of the cabinet body 1, one end of the cabinet door 2 is hinged to the cabinet body 1, the cabinet door 2 can block the opening side of the cabinet body 1, and an actuating element 3 is provided on the side of the cabinet door 2 facing the cabinet body 1. The actuating element 3 is block-shaped and L-shaped.
[0027] A movable rod 4 is installed inside the cabinet 1. A connecting shaft 5 is fixedly installed on the movable rod 4 facing upward. One end of the connecting shaft 5 is rotatably installed inside the cabinet 1. A weight rod 6 is fixedly installed at the bottom of the movable rod 4. The weight rod 6 and the movable rod 4 are integrated. The center of gravity of the integrated structure formed by the weight rod 6 and the movable rod 4 is located at the weight rod 6. The movable rod 4 is configured to cooperate with the trigger 3. The trigger 3 can drive the movable rod 4 to rotate around the connecting shaft 5. A support block 7 is fixedly installed inside the cabinet 1. A limit block 8 is provided at the upper end of the support block 7. The limit block 8 is configured to cooperate with the weight rod 6. The limit block 8 is used to limit the weight rod 6. A movable mechanism is provided on the support block 7. The movable mechanism is connected to the limit block 8. The movable mechanism is used to support the limit block 8 and can drive the limit block 8 to move up and down.
[0028] The movable mechanism includes two spaced guide rods 101, each passing through a support block 7. The upper ends of the guide rods 101 are fixedly connected to a limiting block 8. A limiting plate 102 is located at the lower end of the support block 7, and is fixedly connected to the bottom of the two guide rods 101. An elastic element 103 is located between the limiting block 8 and the support block 7, with both ends fixedly connected to the limiting block 8 and the support block 7, respectively. The movable mechanism also includes a magnet 104, which is fixedly mounted on the limiting plate 102. An electromagnet 105 is fixedly mounted at the bottom of the support block 7. When energized, the electromagnet 105 can exert a repulsive force on the magnet 104. A door lock control device 201 is installed outside the cabinet 1, electrically connected to an external back-end management system. The electromagnet 105 is electrically connected to the door lock control device 201.
[0029] During the closing operation, pushing cabinet door 2 causes it and its actuating element 3 to move towards movable rod 4. Actuating element 3 pushes movable rod 4, causing it to rotate around connecting shaft 5. Simultaneously, the weight rod 6 at the lower end of movable rod 4 moves away from limiting block 8. Actuating element 3 continues to move. When actuating element 3 separates from movable rod 4, the entire structure of movable rod 4 and weight rod 6 returns to its original position under gravity. Both actuating element 3 and limiting block 8 are now located on one side of the entire structure of movable rod 4 and weight rod 6. (Refer to...) Figure 5 As shown, at this time, due to the limiting effect of the overall structure of the movable rod 4 and the weight rod 6, the cabinet door 2 cannot be opened.
[0030] When unlocking, the external back-end management system sends an unlocking command to the door lock control device 201. The door lock control device 201 controls the electromagnet 105 to be energized, and the electromagnet 105 changes from non-magnetic to magnetic. The electromagnet 105 applies a repulsive force to the magnet 104, and the limit block 8 moves downward a certain distance. At this time, the limit block 8 will not be limited by the side of the weight bar 6, and the cabinet door 2 can be opened.
[0031] A handle is fixedly installed on the outer side of the cabinet door 2, making it easy to pull. A reinforcing rib 9 is fixedly installed on the inner side of the actuating element 3, with each end of the reinforcing rib 9 fixedly connected to the actuating element 3. The reinforcing rib 9 enhances the pressure-bearing strength of the actuating element 3, thus improving its service life.
[0032] Working principle:
[0033] The vending machine's backend management system generates corresponding QR codes based on user permissions. When a user scans the code, the link carries the user's unique identifier and permission information, which is sent to the backend for verification. After generating the QR code, the backend management system saves it as an image on the server and displays it on the vending machine's screen.
[0034] Users scan the QR code on the vending machine using their mobile phones or other devices. The QR code scanning module of the back-end management system reads the information from the QR code and sends it to the processor on the vending machine for initial processing. The processor compares the information in the QR code with preset user information to verify the user's identity.
[0035] The vending machine is also equipped with a wireless communication module. After the user is authenticated, the wireless communication module sends the user information and unlocking request to the back-end management system. Upon receiving the unlocking request, the back-end management system further verifies the legitimacy of the user information. If the back-end management system verifies the user information is legitimate, it sends an unlocking command to the door lock control device 201; if the verification fails, the unlocking operation will not be performed.
[0036] During the unlocking operation, the electromagnet 105 is energized by the door lock control device 201, and the electromagnet 105 changes from non-magnetic to magnetic. The electromagnet 105 applies a repulsive force to the magnet 104, and the limit block 8 moves downward a certain distance. At this time, the limit block 8 will not be limited by the side of the weight bar 6, and the cabinet door 2 can be opened.
[0037] Users no longer need to manually operate the lock; the vending machine door opens automatically simply by scanning a QR code, greatly simplifying the shopping process and enhancing convenience. The automatic lock responds quickly to user input, reducing waiting time and allowing users to complete their shopping faster, thus improving efficiency.
[0038] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
[0039] Furthermore, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies both A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
Claims
1. An automatic vending machine door lock, characterized in that, The cabinet (1) includes an opening on one side. A cabinet door (2) is installed on the opening side of the cabinet (1). One end of the cabinet door (2) is hinged to the cabinet (1). The cabinet door (2) can block the opening side of the cabinet (1). A trigger (3) is provided on the side of the cabinet door (2) facing the cabinet (1). The trigger (3) is block-shaped and L-shaped. A movable rod (4) is provided inside the cabinet (1). A connecting shaft (5) is fixedly installed on the movable rod (4) facing upward. One end of the connecting shaft (5) is rotatably installed inside the cabinet (1). A weight rod (6) is fixedly installed at the bottom of the movable rod (4). The weight rod (6) and the movable rod (4) are connected as one unit. The center of gravity of the integral structure formed by the weight rod (6) and the movable rod (4) is located at the weight rod (6). The movable rod (4) is configured to cooperate with the trigger (3). The movable rod (4) can be driven to rotate around the connecting shaft (5). A support block (7) is fixedly installed on the inner side of the cabinet (1). A limit block (8) is provided on the upper end of the support block (7). The limit block (8) is set in cooperation with the weight rod (6). The limit block (8) is used to limit the weight rod (6). An active mechanism is provided on the support block (7). The active mechanism is connected to the limit block (8). The active mechanism is used to support the limit block (8) and can drive the limit block (8) to move up and down.
2. The automatic vending machine door lock according to claim 1, characterized in that, A handle is fixedly installed on the outside of the cabinet door (2).
3. The automatic vending machine door lock according to claim 1, characterized in that, A reinforcing rib (9) is fixedly installed on the inner side of the trigger (3), and the ends of the reinforcing rib (9) are all fixedly connected to the trigger (3).
4. The automatic vending machine door lock according to claim 1, characterized in that, The active mechanism includes two spaced guide rods (101), both of which pass through the support block (7). The upper ends of the guide rods (101) are fixedly connected to the limiting block (8). The lower end of the support block (7) is provided with a limiting piece (102), which is fixedly connected to the bottom of the two guide rods (101). An elastic element (103) is provided between the limiting block (8) and the support block (7), with both ends of the elastic element (103) fixedly connected to the limiting block (8) and the support block (7), respectively.
5. The automatic vending machine door lock according to claim 4, characterized in that, The active mechanism also includes a magnet (104), which is fixedly installed on the limiting plate (102). An electromagnet (105) is fixedly installed at the bottom of the support block (7). When the electromagnet (105) is energized, it can apply a repulsive force to the magnet (104).
6. The automatic vending machine door lock according to claim 1, characterized in that, A door lock control device (201) is installed outside the cabinet (1). The door lock control device (201) is electrically connected to the external background management system. The electromagnet (105) is electrically connected to the door lock control device (201).