Electronic lock device capable of controlling opening of paper bin cover
Patent Information
- Application Number
- CN202522403171.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-12
Smart Images

Figure CN224919021U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic lock device technology, specifically to an electronic lock device that can control the opening and closing of a paper tray cover. Background Technology
[0002] In printers and similar devices, the paper tray lid's locking mechanism is a critical component for ensuring the security of paper storage. Traditionally, to prevent paper roll loss or unauthorized access, most printers on the market use manual locking mechanisms, such as mechanical locks or key locks. These devices secure the paper tray lid with a physical lock, ensuring it cannot be easily opened without authorization.
[0003] However, this type of manual unlocking device has significant drawbacks. First, the operation is cumbersome, requiring users to rely on a special key or tool to unlock it. This not only increases the number of steps involved but may also hinder quick operation in emergencies. Second, the key or tool is easily lost or damaged. If lost, users will face the predicament of being unable to open the paper tray cover, affecting the normal use and maintenance of the equipment. Furthermore, manual devices have low security, are easily damaged or copied by external forces, and are difficult to meet the needs of high-security application scenarios. For example, in shared offices or public environments, traditional manual locks cannot achieve remote monitoring or centralized control, reducing the overall management efficiency of the equipment.
[0004] Therefore, existing technologies lack an integrated and intelligent unlocking solution, and there is an urgent need for a device that can be electronically controlled, is easy to operate, and offers high security to solve the above problems. The electronic lock device of this invention is designed to address these shortcomings, replacing manual operation with an electronic mechanism to improve user experience and device reliability.
[0005] Practical content
[0006] Therefore, this invention provides an electronic lock device that can control the opening and closing of the paper tray cover to solve the above-mentioned problems in the prior art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An electronic lock device for controlling the opening and closing of a paper tray cover includes a main body, a paper tray cover mechanism, a locking roller mechanism, and an electronic lock mechanism. The paper tray cover mechanism is disposed on the main body and includes a roller and a paper tray cover liner. The locking roller mechanism is disposed on the main body and is used to lock or unlock the roller of the paper tray cover mechanism. The electronic lock mechanism is disposed on the main body and controls the locking state of the locking roller mechanism through a motor drive to realize the electronic opening and closing of the paper tray cover.
[0009] Preferably, the rubber roller locking mechanism includes a left rubber roller locking hook, a right rubber roller locking hook, a connecting shaft, an opening wrench, and a torsion spring; the left and right rubber roller locking hooks are rotatably connected by the connecting shaft and are in a balanced state under the action of the torsion spring; the opening wrench is operably connected to the left rubber roller locking hook.
[0010] Preferably, the main body has two through holes for inserting a connecting shaft; the main body also has a cylinder for installing a door opening wrench; the main body also has two screw posts for installing a torsion spring; the main body also has two limiting posts for limiting the torsion spring; the main body also has a limit for limiting the left and right sides of the rubber roller locking hook; the main body also has two rubber roller grooves for accommodating the rubber rollers of the paper compartment cover mechanism.
[0011] Preferably, the connecting shaft is provided with two threaded holes for fixing the left and right rubber roller locking hooks by screws.
[0012] Preferably, the left and right locking hooks of the rubber roller and the door opening wrench are each provided with two round holes for installation and fixing; the left locking hook of the rubber roller and the door opening wrench are also provided with teeth for meshing and transmission.
[0013] Preferably, the upper left and upper right sides of the rubber roller locking hook are provided with torsion spring grooves for installing torsion springs; the upper right side of the rubber roller locking hook is also provided with a limiting surface; the upper left and upper right sides of the rubber roller locking hook are respectively provided with locking hooks for locking the rubber roller.
[0014] Preferably, the electronic lock mechanism includes an electronic lock slider, a toggle wrench, a sensor, and a motor; the electronic lock slider is slidably mounted on the main body and has a waist hole that fits onto the electronic lock slider limiting post on the main body, and also has teeth and a blocking rib, the blocking rib being used to trigger the sensor; the toggle wrench is rotatably mounted on the main body and has a stacked gear including gear one and gear two, the gear having a gear hole at its center that is mounted on the gear post of the main body, and also has a wrench ring for manual operation; the motor is mounted on the main body, its gear meshing with gear one of the toggle wrench, and gear two of the toggle wrench meshing with the teeth of the electronic lock slider.
[0015] Preferably, the main body is further provided with a mounting post for a toggle wrench, which is used to assist in the installation of the toggle wrench.
[0016] Preferably, the device is fixedly installed using machine screws and spacer screws; wherein the spacer screws are used to fix the electronic lock slider and leave a gap between them to ensure smooth sliding.
[0017] Preferably, the electronic lock slider can move between a locked state and an unlocked state; when the electronic lock slider moves upward and is in the locked state, it presses against the right limiting surface of the rubber roller lock hook to prevent the rubber roller lock hook from rotating to the right; when the electronic lock slider moves downward and is in the unlocked state, it allows the door opening wrench to operate and drive the rubber roller lock hook to rotate to the left and right, so that the lock hook separates from the rubber roller.
[0018] This utility model has the following advantages:
[0019] 1. This utility model automates the unlocking of the paper compartment cover through electronic control, eliminating the need for traditional keys or other special tools. The unlocking can be remotely controlled via a host computer or other control devices, greatly simplifying the operation and improving ease of use.
[0020] 2. The electronic lock mechanism combines a precise mechanical structure with electronic control to achieve a reliable locking function. When the electronic lock slider is in the upward position, it effectively holds the right limit surface of the rubber roller lock hook, preventing unauthorized opening. This design ensures that the paper tray cover cannot be forcibly opened in the locked state, greatly improving the safety of the equipment.
[0021] 3. This utility model innovatively designs a dual operation mode of electronic and manual operation. Under normal power supply conditions, automatic control can be achieved through motor drive; in special circumstances such as power failure, the user can manually unlock the device by pulling the lever ring on the toggle wrench. This dual protection mechanism ensures the reliability of the equipment under various operating conditions and avoids the defect of traditional electronic locks that are completely unusable when power is off.
[0022] 4. Through the cooperation of the blocking ribs on the electronic slider and the sensors, the system can monitor and provide feedback on the unlocking status of the lock in real time. The host computer and other control equipment can accurately obtain the current operating status of the device, facilitating equipment management and maintenance. Attached Figure Description
[0023] Figure 1 A schematic diagram of the structure of an electronic lock device for controlling the opening and closing of a paper tray cover, provided in this utility model embodiment. Figure 1 .
[0024] Figure 2 A schematic diagram of the structure of an electronic lock device for controlling the opening and closing of a paper tray cover, provided in this utility model embodiment. Figure 2 .
[0025] Figure 3 Enlarged schematic diagram of a portion of the main structure of an electronic lock device for controlling the opening and closing of a paper tray cover, provided in this utility model embodiment. Figure 1 .
[0026] Figure 4Enlarged schematic diagram of a portion of the main structure of an electronic lock device for controlling the opening and closing of a paper tray cover, provided in this utility model embodiment. Figure 2 ;
[0027] Figure 5 A schematic diagram of the locked state of an electronic lock device that can control the opening and closing of a paper tray cover, provided in this utility model embodiment;
[0028] Figure 6 A schematic diagram illustrating the unlocking state of an electronic lock device for controlling the opening and closing of a paper tray cover, provided in this utility model embodiment;
[0029] Figure 7 An enlarged schematic diagram of a portion of the structure at the connecting shaft in an electronic lock device for controlling the opening and closing of a paper tray cover, provided in this utility model embodiment;
[0030] Figure 8 This is an enlarged schematic diagram of a portion of the structure of the toggle lever in an electronic lock device for controlling the opening and closing of a paper tray cover, provided in this utility model embodiment.
[0031] In the diagram: 1. Main body; 2. Paper tray cover mechanism; 3. Glue roller locking mechanism; 4. Electronic lock mechanism; 5. Glue roller; 6. Paper tray cover liner; 7. Left glue roller locking hook; 8. Right glue roller locking hook; 9. Connecting shaft; 10. Door opening wrench; 11. Torsion spring; 12. Electronic lock slider; 13. Toggle wrench; 14. Sensor; 15. Motor; 16. Through hole; 17. Cylinder; 18. Screw post; 19. Limiting post; 20. Limiting component ; 21. Glue roller groove; 22. Electronic lock slider limit post; 23. Mounting post; 24. Gear post; 25. Threaded hole; 26. Round hole; 27. Tooth shape; 28. Torsion spring groove; 29. Limiting surface; 30. Lock hook; 31. Waist hole; 32. Tooth; 33. Covering rib; 34. Stacked gear; 35. Gear one; 36. Gear two; 37. Gear hole; 38. Wrench ring; 39. Machine screw; 40. Mesh screw. Detailed Implementation
[0032] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0033] Example
[0034] like Figures 1 to 8As shown, an electronic lock device for controlling the opening and locking of a paper tray cover includes a main body 1, a paper tray cover mechanism 2, a locking roller mechanism 3, and an electronic lock mechanism 4. The paper tray cover mechanism 2 is disposed on the main body 1 and includes a roller 5 and a paper tray cover liner 6. The locking roller mechanism 3 is disposed on the main body 1 and is used to lock or unlock the roller 5 of the paper tray cover mechanism 2. The electronic lock mechanism 4 is disposed on the main body 1 and is driven by a motor 15 to control the locking state of the locking roller mechanism 3, thereby realizing the electronic opening and locking of the paper tray cover.
[0035] The rubber roller locking mechanism 3 includes a left rubber roller locking hook 7, a right rubber roller locking hook 8, a connecting shaft 9, an opening wrench 10, and a torsion spring 11; the left rubber roller locking hook 7 and the right rubber roller locking hook 8 are rotatably connected through the connecting shaft 9 and are in a balanced state under the action of the torsion spring 11; the opening wrench 10 is operablely connected to the left rubber roller locking hook 7.
[0036] The main body 1 has two through holes 16 for passing through the connecting shaft 9; the main body 1 also has a cylinder 17 for installing the door opening wrench 10; the main body 1 also has two screw posts 18 for installing the torsion spring 11; the main body 1 also has two limiting posts 19 for limiting the torsion spring 11; the main body 1 also has a limiting component 20 for limiting the left 7 and right 8 of the rubber roller locking hook; the main body 1 also has two rubber roller grooves 21 for accommodating the rubber roller 5 of the paper compartment cover mechanism 2.
[0037] The connecting shaft 9 is provided with two threaded holes 25 for fixing the left and right rubber roller locking hooks 7 and 8 with screws.
[0038] The left and right rubber roller locking hooks 7 and the door opening wrench 10 are each provided with two round holes 26 for installation and fixing; the left rubber roller locking hook 7 and the door opening wrench 10 are also provided with teeth 27 for meshing transmission.
[0039] Both the left and right sides of the rubber roller locking hook are provided with torsion spring grooves 28 for installing torsion springs 11; the right side of the rubber roller locking hook is also provided with a limiting surface 29; the left and right sides of the rubber roller locking hook are respectively provided with locking hooks 30 for locking the rubber roller 5.
[0040] The electronic lock mechanism 4 includes an electronic lock slider 12, a toggle wrench 13, a sensor 14, and a motor 15. The electronic lock slider 12 is slidably mounted on the main body 1 and has a waist hole 31 that fits onto the electronic lock slider limiting post 22 on the main body 1. It also has teeth 32 and a blocking rib 33, with the blocking rib 33 used to trigger the sensor 14. The toggle wrench 13 is rotatably mounted on the main body 1 and has a stacked gear 34 including a first gear 35 and a second gear 36. The gear has a gear hole 37 at its center and is mounted on the gear post 24 of the main body 1. It also has a wrench ring 38 for manual operation. The motor 15 is mounted on the main body 1, and its gear meshes with the first gear 35 of the toggle wrench 13. The second gear 36 of the toggle wrench 13 meshes with the teeth 32 of the electronic lock slider 12.
[0041] The main body 1 is also provided with a mounting post 23 for the toggle wrench 13, which is used to assist in the installation of the toggle wrench 13.
[0042] The device is fixedly installed using machine screws 39 and spacer screws 40; the spacer screws 40 are used to fix the electronic lock slider 12 and leave a gap between them to ensure smooth sliding.
[0043] The electronic lock slider 12 can move between the locked and unlocked states. When the electronic lock slider 12 moves upward and is in the locked state, it presses against the limiting surface 29 of the right rubber roller lock hook 8 to prevent the right rubber roller lock hook 8 from rotating. When the electronic lock slider 12 moves downward and is in the unlocked state, it allows the door opening wrench 10 to operate and drive the left rubber roller lock hook 7 and the right rubber roller lock hook 8 to rotate, so that the lock hook 30 is separated from the rubber roller 5.
[0044] Working principle: The connecting shaft 9 is inserted into the two through holes 16 on the main body 1. The left and right rubber roller locking hooks 7 and 8 are then installed on both sides of the connecting shaft 9 and fixed with machine screws 39. The torsion spring 11 is installed on the screw post 18 of the main body 1, with one end inserted into the torsion spring groove 28 on the rubber roller locking hook and the other end limited to the limiting post 19. The electronic lock slider 12 is fitted onto the electronic lock slider limiting post 22 through the waist hole 31 and fixed with a spacer screw 40. The toggle wrench 13 is installed on the gear post 24 through the gear hole 37 and meshes with the motor 15 and the electronic lock slider 12. When the paper tray cover is closed, the rubber roller 5 falls into the rubber roller groove 21, and the locking hook 30 locks the rubber roller 5 under the action of the torsion spring 11.
[0045] When the electronic lock slider 12 is in the unlocked state (downward), the door opening lever 10 can be turned by the toothed 27 to drive the rubber roller lock hook 7 to rotate to the left, thereby unlocking the door.
[0046] When the electronic lock slider 12 is in the locked state (moved upward), the electronic lock slider 12 presses against the limiting surface 29 to prevent the rubber roller lock hook 8 from rotating to the right, thus achieving locking.
[0047] Sensor 14 detects the status through shielding rib 33, and can be operated manually by pulling the lever ring 38 when the power is off.
[0048] Specific working methods:
[0049] The connecting shaft 9 is inserted into the two through holes 16 on the main body 1. The left and right roller locking hooks 7 and 8 are then installed on both sides of the connecting shaft 9. Machine screws 39 are passed through the two round holes 26 on the left and right roller locking hooks 7 and 8 respectively, locking them into the two threaded holes 25 on the connecting shaft 9 for fixation. Torsion springs 11 are installed on the screw posts 18 on both sides of the main body 1. One end of the torsion spring 11 is inserted into the torsion spring groove 28 on the left and right roller locking hooks 7 and 8, and the other end is engaged with the two limiting posts 19 on the main body 1. Under the action of the torsion spring 11 and the two limiting parts 20 on the main body 1, the left and right roller locking hooks 7 and 8 are in a balanced state.
[0050] The electronic lock slider 12 is mounted on the main body 1, with the slot 31 on the electronic lock slider 12 fitting onto the electronic lock slider limiting post 22 and secured with a spacer screw 40. A gap is left between the spacer screw 40 and the electronic lock slider 12 to prevent the slider 12 from being pressed too tightly, causing obstructed sliding. The gear hole 37 on the toggle wrench 13 is mounted on the gear post 24 on the main body 1, allowing the gear hole 37 to rotate around the gear post 24. The motor 15 is then mounted on the main body 1. At this point, the teeth 32 on the electronic lock slider 12 mesh with the second gear 36 on the toggle wrench 13, and the gear on the motor 15 meshes with the first gear 35 on the toggle wrench 13. The rotation of the motor 15 is controlled by the circuit board. The gear on the motor 15 drives the stacked gear 34 on the toggle wrench 13 to rotate, which in turn moves the electronic lock slider 12 up and down.
[0051] When the paper tray cover is closed, the two sides of the rubber roller 5 on the paper tray cover assembly will fall into the two rubber roller grooves 21 on the main body 1. Due to the force of the torsion spring 11, the locking hooks on the left 7 and right 8 of the rubber roller locking hook will restrict the rubber roller 5.
[0052] If the electronic lock slider 12 is in the downward position, i.e. the unlocked position, when the door opening lever 10 is pulled, the teeth on the door opening lever 10 act on the teeth on the left side of the rubber roller lock hook 7. The left side of the rubber roller lock hook 7 will rotate through the connecting shaft 9, causing the lock hook 30 on the right side of the rubber roller lock hook 7 to separate from the rubber roller, thus opening the paper tray cover.
[0053] If the electronic lock slider 12 is in the upward position, i.e. the locked state, the electronic lock slider 12 will press against the limiting surface 29 on the right side of the rubber roller lock hook 8. At this time, when the door opening handle 10 is pulled, the right side of the rubber roller lock hook 8 cannot rotate due to the action of the electronic lock slider 12, thus achieving the locking function.
[0054] The host computer and other devices determine whether to unlock by using the blocking rib 33 on the electronic slider.
[0055] When power is off and automatic control is not possible, manually turning the lever ring 38 on the lever 13 can also achieve the purpose of unlocking.
[0056] This invention automates the unlocking of the paper compartment lid through electronic control, eliminating the need for traditional keys or other special tools. The lid can be remotely controlled via a host computer or other control devices, greatly simplifying the operation and improving ease of use.
[0057] The electronic lock mechanism 4 achieves a reliable locking function through a combination of precise mechanical structure and electronic control. When the electronic lock slider 12 is in the upward position, it can effectively hold the limiting surface 29 of the right side of the glue roller lock hook 8, preventing unauthorized opening. This design ensures that the paper tray cover cannot be forcibly opened in the locked state, greatly improving the safety of the equipment.
[0058] This utility model innovatively designs a dual operation mode of electronic and manual operation. Under normal power supply, automatic control can be achieved by driving the motor 15; in special circumstances such as power failure, the user can manually unlock the device by pulling the lever ring 38 on the toggle wrench 13. This dual protection mechanism ensures the reliability of the equipment under various operating conditions and avoids the defect of traditional electronic locks that are completely unusable when power is off.
[0059] Through the cooperation of the blocking rib 33 on the electronic slider and the sensor 14, the system can monitor and provide feedback on the unlocking status of the lock in real time. The host computer and other control equipment can accurately obtain the current operating status of the device, facilitating equipment management and maintenance.
Claims
1. An electronic lock device for controlling the opening and closing of a paper tray cover, characterized in that, It includes a main body (1), a paper tray cover mechanism (2), a glue-locking roller mechanism (3) and an electronic lock mechanism (4); the paper tray cover mechanism (2) is set on the main body (1) and includes a glue roller (5) and a paper tray cover liner (6); the glue-locking roller mechanism (3) is set on the main body (1) and is used to lock or unlock the glue roller (5) of the paper tray cover mechanism (2); the electronic lock mechanism (4) is set on the main body (1) and drives the locking roller mechanism (3) through a motor (15) to control the locking state of the glue-locking roller mechanism (3) to realize the electronic unlocking of the paper tray cover.
2. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 1, characterized in that, The locking roller mechanism (3) includes a left locking hook (7), a right locking hook (8), a connecting shaft (9), an opening wrench (10), and a torsion spring (11); the left locking hook (7) and the right locking hook (8) are rotatably connected by the connecting shaft (9) and are in a balanced state under the action of the torsion spring (11); the opening wrench (10) is operablely connected to the left locking hook (7).
3. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 2, characterized in that, The main body (1) is provided with two through holes (16) for inserting connecting shaft (9); the main body (1) is also provided with a cylinder (17) for installing door opening wrench (10); the main body (1) is also provided with two screw posts (18) for installing torsion spring (11); the main body (1) is also provided with two limiting posts (19) for limiting torsion spring (11); the main body (1) is also provided with a limit (20) for limiting the left (7) and right (8) of the rubber roller locking hook; the main body (1) is also provided with two rubber roller grooves (21) for accommodating the rubber roller (5) of the paper compartment cover mechanism (2).
4. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 2, characterized in that, The connecting shaft (9) is provided with two threaded holes (25) for fixing the left (7) and right (8) of the rubber roller lock hook by screws.
5. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 2, characterized in that, The left (7) and right (8) of the rubber roller locking hook and the door opener (10) are each provided with two round holes (26) for installation and fixing; the left (7) of the rubber roller locking hook and the door opener (10) are also provided with teeth (27) for meshing transmission.
6. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 2, characterized in that, The left (7) and right (8) of the rubber roller locking hook are each provided with a torsion spring groove (28) for installing a torsion spring (11); the right (8) of the rubber roller locking hook is also provided with a limiting surface (29); the left (7) and right (8) of the rubber roller locking hook are respectively provided with a locking hook (30) for locking the rubber roller (5).
7. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 1, characterized in that, The electronic lock mechanism (4) includes an electronic lock slider (12), a toggle wrench (13), a sensor (14), and a motor (15); the electronic lock slider (12) is slidably mounted on the main body (1) and has a waist hole (31) fitted onto the electronic lock slider limiting post (22) on the main body (1), and also has teeth (32) and a blocking rib (33), the blocking rib (33) being used to trigger the sensor (14); the toggle wrench (13) is rotatably mounted on the main body (1). The main body (1) is provided with a stacked gear (34) including gear one (35) and gear two (36). The gear center is provided with a gear hole (37) and installed on the gear column (24) of the main body (1). A wrench ring (38) is also provided for manual operation. The motor (15) is installed on the main body (1), and its gear meshes with gear one (35) of the toggle wrench (13). Gear two (36) of the toggle wrench (13) meshes with the teeth (32) of the electronic lock slider (12).
8. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 7, characterized in that, The main body (1) is also provided with a mounting post (23) for a toggle wrench (13) to assist in the installation of the toggle wrench (13).
9. The electronic lock device for controlling the opening and closing of the paper tray cover according to claim 1, characterized in that, The device is fixedly installed using machine screws (39) and spacer screws (40); wherein the spacer screws (40) are used to fix the electronic lock slider (12) and leave a gap with the electronic lock slider (12) to ensure smooth sliding.
10. An electronic lock device for controlling the opening and closing of a paper tray cover according to claim 1, characterized in that, The electronic lock slider (12) can move between the locked state and the unlocked state. When the electronic lock slider (12) moves up and is in the locked state, it presses against the limiting surface (29) of the right (8) of the rubber roller lock hook to prevent the right (8) of the rubber roller lock hook from rotating. When the electronic lock slider (12) moves down and is in the unlocked state, it allows the door opening wrench (10) to operate and drive the left (7) and right (8) of the rubber roller lock hook to rotate, so that the lock hook (30) is separated from the rubber roller (5).
