Electronic lock for cabinet door of vending machine
By using a solenoid valve to drive the linkage and slider mechanism within the electronic lock body, the problem of the lock hook easily injuring people and detaching is solved. This achieves safe storage and improved stability of the lock hook, and provides an alarm in case of an accident, thus enhancing the safety of the vending machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-03-17
AI Technical Summary
Existing electronic lock hooks can easily cause injury to people on doors. The space for the lock case to engage with the hook is limited, making it easy to bump into the hook. With the hook facing upwards, the door sags, and there is a risk of the hook coming off over time.
The electronic lock uses a solenoid valve inside the lock body to drive a connecting rod. The connecting rod moves the side plate and slider, and the slider drives the lock hook to rotate and retract. The lock hook head points downwards, and combined with a photoelectric switch to detect the status and trigger an alarm, the security and stability are improved.
It achieves safe storage of the lock hook, avoids the risk of injury, increases the stability and safety of the lock hook, and promptly alarms in case of accidents.
Smart Images
Figure CN224002533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic lock technology for cabinet doors, specifically electronic locks for vending machine cabinet doors. Background Technology
[0002] In the modern retail environment, the rapid development of unmanned shopping technology has led to the widespread application of smart refrigerated display cases. These devices are typically equipped with electronic door lock systems, allowing customers to unlock them by scanning a code and conveniently retrieve goods from inside.
[0003] Self-service vending machines are intelligent retail devices that automatically display, sell, and deliver goods through a built-in control system and payment module. They typically consist of a cabinet, a cooling (or heating) system, product aisles, a display screen, and a payment terminal. Consumers can select their desired items, pay, and retrieve them from the cabinet without human assistance. The entire shopping process is efficient and convenient, offering 24 / 7 service in various scenarios, enhancing convenience and security, and ensuring that goods are not removed without permission.
[0004] Regarding the existing related technologies, the inventor believes that the following defects exist: the existing electronic lock hook protrudes on the door, which can easily cause injury and poses a certain safety hazard; the space for the lock shell to enter the hook is limited, making it easy to bump into the hook; at the same time, the lock hook faces upward and the door sags, which may lead to the risk of the hook coming off over time. Utility Model Content
[0005] To address the technical problems of existing electronic locks, such as the hooks on doors causing injury, limited space for the lock case to engage with the hook, the hook being prone to collision, and the hooks facing upwards while the door droops, posing a risk of disengagement over time, this utility model provides an electronic lock for vending machine cabinet doors.
[0006] This utility model adopts the following technical solution: an electronic lock for an automatic vending machine cabinet door, including an electronic lock body and a lock hook. An electromagnetic valve is fixedly connected to one end of the electronic lock body. A connecting rod is movably connected to one end of the electromagnetic valve. A side plate is snap-fitted to one end of the connecting rod. A slider is fixedly connected to the bottom of the side plate. The slider is movably connected inside the electronic lock body. A third groove is machined on one end of the slider. A first fixed shaft is provided inside one end of the third groove. The bottom of the first fixed shaft is fixedly connected to the inner wall of the electronic lock body. The top of the first fixed shaft is rotatably connected to the inside of the lock hook. A movable groove is machined on one end of the lock hook. A second fixed shaft is fixedly connected to the surface of the slider. The second fixed shaft is movably connected inside the movable groove.
[0007] Preferably, the bottom of the locking hook is fixedly connected to a chassis, and the chassis is movably connected to the top of the third groove.
[0008] Preferably, one end of the slider is machined with a first groove, and the inner wall of the electronic lock body is fixedly connected to a first limiting post, which is movably connected inside the first groove.
[0009] Preferably, the middle part of the slider is machined with a second groove, and the inner wall of the electronic lock body is fixedly connected with a second limiting post, which is movably connected to the inside of the second groove.
[0010] Preferably, one end of the slider is fixedly connected to a bending block, one end of the electronic lock body is fixedly connected to a fixing post, the top of the fixing post is fixedly connected to two photoelectric switch circuit boards, and the bending block is located below the two photoelectric switch circuit boards.
[0011] Preferably, a spring is provided on the outside of the connecting rod, one end of the spring is fixedly connected to one end of the solenoid valve, and the other end of the spring is fixedly connected to one end of the connecting rod.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In use, this invention involves activating a solenoid valve, which in turn moves a connecting rod. This connecting rod then moves the side plate and the slider, causing the second fixed shaft to move along the interior of the movable groove. Since the first fixed shaft is fixed to the inner wall of the electronic lock body, the lock hook rotates around the first fixed shaft to retract inside the electronic lock body, thus facilitating the opening of the cabinet door.
[0014] When in use, this invention makes the electronic lock safer and more aesthetically pleasing because the hook can be hidden inside the lock body. The hook is flexible in length and not limited by the lock housing, making it easier to hook. Furthermore, the hook's downward-pointing head and the downward-sloping door allow for a tighter hook and improved stability.
[0015] In use, this utility model has two photoelectric switches, which allow both states of the switch lock to be detected, and can promptly sound an alarm in case of an accident. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention;
[0017] Figure 2 For the present utility model Figure 1 Enlarged diagram of section A in the middle;
[0018] Figure 3 This is a schematic diagram of the application of this utility model in an automatic vending machine.
[0019] In the diagram: 1. Electronic lock body; 2. Lock hook; 201. Chassis; 202. First fixed shaft; 203. Movable groove; 204. Second fixed shaft; 3. Solenoid valve; 4. Connecting rod; 5. Side plate; 6. Slider; 7. Spring; 8. First groove; 9. First limiting post; 10. Second groove; 11. Second limiting post; 12. Third groove; 13. Bending block; 14. Fixed post. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0021] Example 1: Please refer to Figure 1 - Figure 2 The electronic lock for the vending machine door in this embodiment includes an electronic lock body 1 and a lock hook 2. An electromagnetic valve 3 is fixedly connected to one end of the electronic lock body 1. A connecting rod 4 is movably connected to one end of the electromagnetic valve 3. A side plate 5 is snap-fitted to one end of the connecting rod 4. A slider 6 is fixedly connected to the bottom of the side plate 5. The slider 6 is movably connected to the inside of the electronic lock body 1. A third groove 12 is machined on one end of the slider 6. A first fixed shaft 202 is provided inside one end of the third groove 12. The bottom of the first fixed shaft 202 is fixedly connected to the inner wall of the electronic lock body 1. The top of the first fixed shaft 202 is rotatably connected to the inside of the lock hook 2. A movable groove 203 is machined on one end of the lock hook 2. A second fixed shaft 204 is fixedly connected to the surface of the slider 6. The second fixed shaft 204 is movably connected to the inside of the movable groove 203.
[0022] When the cabinet door needs to be opened, the solenoid valve 3 is activated. The solenoid valve 3 will drive the connecting rod 4 to move inward. The connecting rod 4 will drive the side plate 5 to move, the side plate 5 will drive the slider 6 to move, and the slider 6 will drive the second fixed shaft 204 to move. The second fixed shaft 204 will move along the movable groove 203 inside the lock hook 2. Since the first fixed shaft 202 is fixed to the inner wall of the electronic lock body 1 to limit the lock hook 2, the lock hook 2 will rotate around the first fixed shaft 202, thereby causing the lock hook 2 to rotate and retract inside the electronic lock body 1, which will make a clicking sound. When the customer hears this, they can directly open the door to shop.
[0023] Secondly, the hook 2 can be stored inside the electronic lock body 1, so the length of the hook is flexible and the left and right space is not limited by the lock shell, making it easier to hook. At the same time, the hook head of the hook 2 is downward and the door is drooping, so that the hook 2 hooks more tightly and improves stability.
[0024] Furthermore, the bottom of the locking hook 2 is fixedly connected to the chassis 201, and the chassis 201 is movably connected to the top of the third groove 12. When the locking hook 2 rotates, the locking hook 2 will drive the chassis 201 to make a circular motion around the outside of the first fixed shaft 202.
[0025] Furthermore, a first groove 8 is machined on one end of the slider 6, and a first limiting post 9 is fixedly connected to the inner wall of the electronic lock body 1. The first limiting post 9 is movably connected inside the first groove 8. When the side plate 5 drives the slider 6 to move, the slider 6 will drive the first groove 8 to move. By setting the first limiting post 9, the first limiting post 9 will limit the movement of the slider 6 through the first groove 8.
[0026] Furthermore, a second groove 10 is machined in the middle of the slider 6, and a second limiting post 11 is fixedly connected to the inner wall of the electronic lock body 1. When the side plate 5 drives the slider 6 to move, the slider 6 will drive the second groove 10 to move. By setting the second limiting post 11, the second limiting post 11 will limit the movement of the slider 6 through the second groove 10.
[0027] Furthermore, a bending block 13 is fixedly connected to one end of the slider 6, and a fixed post 14 is fixedly connected to one end of the electronic lock body 1. Two photoelectric switch circuit boards are fixedly connected to the top of the fixed post 14. The bending block 13 is located below the two photoelectric switch circuit boards. When the slider 6 moves, the slider 6 will drive the bending block 13 to move. The bending block 13 will move below the photoelectric switches. By sensing the bending block 13 through the two photoelectric switches, it can be detected whether the slider 6 can move back and forth. Thus, both states of the lock and switch can be detected. In case of an accident, an alarm can be triggered in time.
[0028] Furthermore, a spring 7 is provided on the outside of the connecting rod 4. One end of the spring 7 is fixedly connected to one end of the solenoid valve 3, and the other end of the spring 7 is fixedly connected to one end of the connecting rod 4. With the spring 7 provided, when the solenoid valve 3 is de-energized, the spring 7 will return to its original position and extend. The spring 7 will push the side plate 5 to move. The side plate 5 will drive the locking hook 2 to move through the slider 6, so that the locking hook 2 will rotate and lock the cabinet door.
[0029] Working principle: When the cabinet door needs to be opened, the solenoid valve 3 is activated. The solenoid valve 3 will drive the connecting rod 4 to move inward. The connecting rod 4 will drive the side plate 5 to move, the side plate 5 will drive the slider 6 to move, and the slider 6 will drive the second fixed shaft 204 to move. The second fixed shaft 204 will move along the movable groove 203 inside the lock hook 2. Since the first fixed shaft 202 is fixed to the inner wall of the electronic lock body 1 to limit the lock hook 2, the lock hook 2 will rotate around the first fixed shaft 202, thereby causing the lock hook 2 to rotate and retract into the electronic lock body 1, thus opening the cabinet door. This makes the length of the hook flexible and the left and right space not limited by the lock shell, making it easier to hook. At the same time, the hook head of the lock hook 2 points downward and the door droops, thereby making the lock hook 2 hook more tightly and improving stability.
[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An electronic lock for a vending machine cabinet door, comprising an electronic lock body (1) and a lock hook (2), characterized in that, The inside one end of the electronic lock body (1) is fixedly connected with a electromagnetic valve (3), one end of the electromagnetic valve (3) is movably connected with a connecting rod (4), one end of the connecting rod (4) is connected with a side plate (5) in clamping mode, the bottom of the side plate (5) is fixedly connected with a sliding block (6), the sliding block (6) is movably connected in the inside of the electronic lock body (1), one end of the sliding block (6) is processed with a third groove (12), one end of the third groove (12) is internally provided with a first fixed shaft (202), the bottom of the first fixed shaft (202) is fixedly connected on the inner wall of the electronic lock body (1), the top of the first fixed shaft (202) is rotatably connected in the inside of the lock hook (2), one end of the lock hook (2) is processed with a movable groove (203), the surface of the sliding block (6) is fixedly connected with a second fixed shaft (204), the second fixed shaft (204) is movably connected in the inside of the movable groove (203).
2. The electronic lock for a vending machine cabinet door according to claim 1, wherein The bottom of the lock hook (2) is fixedly connected with a bottom disc (201), the bottom disc (201) is movably connected on the top of the third groove (12).
3. The electronic lock for a vending machine cabinet door according to claim 1, wherein One end of the sliding block (6) is processed with a first groove (8), the inner wall of the electronic lock body (1) is fixedly connected with a first limiting column (9), the first limiting column (9) is movably connected in the inside of the first groove (8).
4. The electronic lock for a vending machine cabinet door according to claim 1, wherein The middle of the sliding block (6) is processed with a second groove (10), the inner wall of the electronic lock body (1) is fixedly connected with a second limiting column (11), the second limiting column (11) is movably connected in the inside of the second groove (10).
5. The vending machine cabinet door electronic lock of claim 1, wherein, One end of the sliding block (6) is fixedly connected with a bending block (13), one end of the inside of the electronic lock body (1) is fixedly connected with a fixed column (14), the top of the fixed column (14) is fixedly connected with two photoelectric switch circuit boards, the bending block (13) is below the two photoelectric switch circuit boards.
6. The vending machine cabinet door electronic lock of claim 1, wherein, The outside of the connecting rod (4) is provided with a spring (7), one end of the spring (7) is fixedly connected on one end of the electromagnetic valve (3), the other end of the spring (7) is fixedly connected on one end of the connecting rod (4).