A type of sealed bank anti-theft roller shutter door
The automated installation of bank security roller shutters is achieved through a gear and worm gear mechanism driven by an electric motor, which solves the problems of inconvenient operation and safety hazards in the existing technology, and improves the ease of disassembly and assembly as well as security.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGYANG SILVER NEW FINANCIAL PROD CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-26
AI Technical Summary
Existing bank security roller shutters are inconvenient to operate and pose safety hazards, especially since operating them at heights requires tools and carries the risk of falling.
The system employs a gear and worm gear mechanism driven by a first dual-axis motor and a second dual-axis motor. By having the motor drive the gears and worm to rotate, it achieves automated installation and locking of the roller shutter door, reducing manual operation.
It improves the ease of installation and disassembly of roller shutters and enhances safety, reduces operational risks, and strengthens installation stability.
Smart Images

Figure CN224282460U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller shutter technology, specifically to a sealed anti-theft roller shutter for banks. Background Technology
[0002] With increasing awareness of security and theft prevention, people have higher and higher requirements for the safety and durability of roller shutters. Roller shutters consist of multiple articulated door panels connected together in a fixed track, with the roller at the top of the door as the center for opening and closing. Banks have even higher requirements for the safety, reliability and durability of their security roller shutters.
[0003] As existing technology, Chinese patent CN215485788U proposes a sealed bank anti-theft roller shutter. The snap-fit fixing mechanism replaces the original bolt fixing method, making the installation and removal of the roller shutter more convenient. However, in this technical solution, it is necessary to manually rotate the rotating blocks on both sides and pull the push rods on both sides. The distance between the rotating blocks and push rods on both sides is relatively far, and the rotating blocks and push rods are located at a high position above the fixing plate. The staff needs additional tools to climb to a high position to operate. Not only is the operation inconvenient, but there is also a certain risk of falling. There is still room for improvement. Utility Model Content
[0004] The purpose of this utility model is to provide a sealed anti-theft rolling shutter door for banks to solve the problems mentioned in the background art.
[0005] To solve the above technical problems, this utility model adopts the following technical solution: a sealed bank anti-theft roller shutter door, including a fixed plate and a roller shutter door body, wherein the roller shutter door body is disposed inside the fixed plate, and a pair of support frames are provided on both sides of the fixed plate, and a first opening is provided on the opposite side of the pair of support frames. A pair of slots are provided on both sides of the roller shutter door body. The fixed plate is characterized in that a first dual-axis motor is provided in the middle and a pair of side plates are provided on both sides. A pair of rotating shafts are provided between the output shafts on both sides of the first dual-axis motor and the pair of side plates. A pair of first gears are provided on the pair of rotating shafts. A second opening is provided at the top of the support frame. A rotatable first screw and a horizontally sliding slide are provided inside the support frame. The slide is threadedly connected to the first screw. The slide is provided with a connecting plate. The connecting plate passes through the first opening and engages with the slots. A second gear is fixed to the first screw. The first gear and the second gear are linked together.
[0006] Using the above technical solution, during installation, the roller shutter door body is placed inside the fixed plate, the slot is aligned with the first opening, and then the first rotating shaft motor is turned on, driving a pair of rotating shafts to rotate, thereby causing the first gear to rotate. The first gear, in conjunction with the second gear, rotates, thereby driving the first screw to rotate. The rotation of the first screw causes the slide to move horizontally, so that a pair of connecting plates slide simultaneously and engage with the slot to fix them in place. This achieves simultaneous fixed installation on both sides of the roller shutter door body, eliminating the need for manual operation, which not only further improves the convenience of disassembly and assembly but also increases safety.
[0007] As a further optimization of this utility model, the fixing plate has a second dual-axis motor in the middle and a pair of L-shaped plates on both sides. A pair of worm gears are provided between the output shafts on both sides of the second dual-axis motor and the pair of L-shaped plates. A slider that can slide up and down is provided in the second opening. A limiting block is provided at the bottom of the slider. It also includes a second screw that is rotatably connected to the L-shaped plates. A worm wheel is sleeved on the top of the second screw. The worm wheel meshes with the worm gear. The second sliding hole at the lower end of the first screw is threaded. A limiting groove is provided at the top of the connecting plate. The limiting block is engaged with the limiting groove.
[0008] Using the above technical solution, after installation, the second dual-axis motor is turned on, which drives the worm gear to rotate, thereby driving the worm wheel to rotate. The rotation of the worm wheel causes the second screw to rotate, which drives the slider to move down and lock the limit block into the limit groove of the connecting plate, thereby locking the pair of connecting plates at the same time, preventing the connecting plates from coming out of the groove, and enhancing the stability of the roller shutter door body during installation.
[0009] As a further optimization of this utility model, the first gear and the second gear are connected by a chain, and the top of the support frame is provided with a third opening for the chain to pass through.
[0010] As a further optimization of this utility model, the inner wall of the support frame is provided with a sliding groove, and the slide block is provided with a sliding part and is horizontally slidably connected to the sliding groove.
[0011] The beneficial effects of this utility model are as follows: During installation, the roller shutter door body is placed inside the fixed plate, the slot is aligned with the first opening, and then the first rotating shaft motor is turned on, driving a pair of rotating shafts to rotate, thereby causing the first gear to rotate. The first gear, in conjunction with the second gear, rotates, thereby driving the first screw to rotate. The rotation of the first screw causes the slide to move horizontally, so that a pair of connecting plates slide simultaneously and engage with the slot to fix them, thus achieving simultaneous fixed installation on both sides of the roller shutter door body. This eliminates the need for manual operation, further improving the convenience of disassembly and assembly, and increasing safety. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 for Figure 1 Enlarged diagram in the image.
[0014] The labels in the diagram mean the following: 1. Fixed plate; 11. Roller shutter body; 111. Slot; 12. Support frame; 121. First opening; 122. Second opening; 123. Third opening; 13. Side plate; 14. L-shaped plate; 21. First dual-axis motor; 22. Second dual-axis motor; 3. Rotating shaft; 41. First gear; 42. Second gear; 43. Chain; 51. First screw; 52. Second screw; 6. Slide; 61. Connecting plate; 611. Limiting groove; 7. Worm gear; 8. Worm wheel; 9. Sliding block; 91. Limiting block. Detailed Implementation
[0015] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
[0016] See appendix Figure 1-2 The present invention further discloses the following embodiment: a sealed bank anti-theft roller shutter door, including a fixed plate 1 and a roller shutter door body 11. The roller shutter door body 11 is disposed inside the fixed plate 1. A pair of support frames 12 are provided on both sides of the fixed plate 1. A first opening 121 is provided on the opposite side of the pair of support frames 12. A pair of slots 111 are provided on both sides of the roller shutter door body 11. The fixed plate 1 is characterized in that a first dual-axis motor 21 is provided in the middle and a pair of side plates 13 are provided on both sides. A pair of rotating shafts 3 are provided between the output shafts on both sides of the first dual-axis motor 21 and the pair of side plates 13. A pair of first gears 41 are provided on the pair of rotating shafts 3. A second opening 122 is provided at the top of the support frame 12. A rotatable first screw 51 and a horizontally sliding slide 6 are provided inside the support frame 12. Specifically, a sliding groove is provided on the inner wall of the support frame 12, and the slide 6 is provided with a sliding part and is horizontally slidably connected to the sliding groove.
[0017] The slide block 6 is threadedly connected to the first screw 51. The slide block 6 is provided with a connecting plate 61. The connecting plate 61 passes through the first opening 121 and engages with the slot 111. The first screw 51 is fixed with a second gear 42. The first gear 41 and the second gear 42 are linked together. Specifically, the first gear 41 and the second gear 42 are connected by a chain 43. The top of the support frame 12 is provided with a third opening 123 for the chain 43 to pass through.
[0018] The fixed plate 1 has a second dual-axis motor 22 in the middle and a pair of L-shaped plates 14 on both sides. A pair of worm gears 7 are provided between the output shafts on both sides of the second dual-axis motor 22 and the pair of L-shaped plates 14. A slider that can slide up and down is provided in the second opening 122. A limiting block 91 is provided at the bottom of the slider. It also includes a second screw 52 that is rotatably connected to the L-shaped plate 14. A worm wheel 8 is sleeved on the top of the second screw 52. The worm wheel 8 meshes with the worm gear 7. The second sliding hole at the lower end of the first screw 51 is threaded. A limiting groove 611 is provided on the top of the connecting plate 61. The limiting block 91 is engaged with the limiting groove 611.
[0019] The principle of this utility model is as follows: During installation, the roller shutter door body 11 is placed inside the fixing plate 1, the slot 111 is aligned with the first opening 121, and then the first rotating shaft 3 motor is turned on, driving a pair of rotating shafts 3 to rotate, thereby causing the first gear 41 to rotate. The first gear 41 is linked to the second gear 42 to rotate, thereby driving the first screw 51 to rotate. The rotation of the first screw 51 drives the slide 6 to move horizontally, thereby causing a pair of connecting plates 61 to slide simultaneously and engage with the slot to fix them, thus achieving simultaneous fixed installation on both sides of the roller shutter door body 11, eliminating the need for manual operation, which not only further improves the convenience of disassembly and assembly, but also increases safety.
[0020] After installation, the second dual-axis motor 22 is turned on, which drives the worm gear 7 to rotate, thereby driving the worm wheel 8 to rotate. The rotation of the worm wheel 8 causes the second screw 52 to rotate, which drives the slider to move down and lock the limiting block 91 into the limiting groove 611 of the connecting plate 61, thereby locking the pair of connecting plates 61 at the same time, preventing the connecting plates 61 from coming out of the groove 111, and strengthening the stability of the roller shutter door body 11 during installation.
[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.
Claims
1. A closed bank anti-theft shutter, comprising a fixed plate (1) and a shutter body (11), the shutter body (11) is arranged inside the fixed plate (1), a pair of support frames (12) are arranged on both sides of the fixed plate (1), the opposite side of the pair of support frames (12) is provided with a first opening (121), and a pair of clamping grooves (111) are arranged on both sides of the shutter body (11), characterized in that, The fixed plate (1) has a first dual-axis motor (21) in the middle and a pair of side plates (13) on both sides. A pair of rotating shafts (3) are provided between the output shafts on both sides of the first dual-axis motor (21) and the pair of side plates (13). A pair of first gears (41) are provided on the pair of rotating shafts (3). The top of the support frame (12) has a second opening (122). The support frame (12) has a rotatable first screw (51) and a horizontally sliding slide (6). The slide (6) is threadedly connected to the first screw (51). The slide (6) has a connecting plate (61). The connecting plate (61) passes through the first opening (121) and engages with the slot (111). The first screw (51) is fixed with a second gear (42). The first gear (41) and the second gear (42) are linked together.
2. The airtight bank anti-theft roller shutter door according to claim 1, characterized in that, The fixed plate (1) has a second dual-axis motor (22) in the middle and a pair of L-shaped plates (14) on both sides. A pair of worm gears (7) are provided between the output shafts on both sides of the second dual-axis motor (22) and the pair of L-shaped plates (14). A slider that can slide up and down is provided in the second opening (122). A limiting block (91) is provided at the bottom of the slider. The plate also includes a second screw (52) that is rotatably connected to the L-shaped plate (14). A worm wheel (8) is sleeved on the top of the second screw (52). The worm wheel (8) meshes with the worm gear (7). The second sliding hole at the lower end of the first screw (51) is threaded. A limiting groove (611) is provided on the top of the connecting plate (61). The limiting block (91) is engaged with the limiting groove (611).
3. A sealed bank anti-theft roller shutter door according to claim 1, characterized in that, The first gear (41) and the second gear (42) are connected by a chain (43), and the top of the support frame (12) is provided with a third opening (123) for the chain (43) to pass through.
4. A sealed bank anti-theft roller shutter door according to claim 1, characterized in that, The inner wall of the support frame (12) is provided with a sliding groove, and the slide block (6) is provided with a sliding part and is horizontally slidably connected to the sliding groove.