Standby power supply safety cut-off device
By introducing casters and retractable components into the backup power cut-off device, the problem of inconvenient transmission line recycling has been solved, enabling rapid recycling and moisture-proof treatment, improving the cleanliness of the working environment and the stability of the equipment, and reducing maintenance costs.
Patent Information
- Application Number
- CN202520145800.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-22
AI Technical Summary
In existing backup power cut-off devices, the transmission lines are too long to be easily recycled, and they are easily damaged in humid environments, taking up space and increasing the cleaning burden.
A backup power safety disconnection device was designed, which uses casters, a retractable assembly, and a dehumidifying assembly. The casters allow for easy movement, the retractable assembly enables rapid retraction of the transmission line, and the dehumidifying assembly keeps the transmission line dry and prevents it from getting damp.
It improves the speed of transmission line recycling, reduces safety risks and space occupation, extends the service life of transmission lines, reduces maintenance costs, and improves energy efficiency.
Smart Images

Figure CN223797784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emergency power supply technology, and in particular to a backup power safety disconnection device. Background Technology
[0002] A backup power disconnect device is a device that connects a backup power source to a load in the event of a main power failure or other emergency. In the event of a main power failure, voltage drop, or frequency instability, staff can quickly move the backup power source to the equipment to be connected and provide it with power, ensuring that the system operation is not disturbed and thus maintaining an uninterrupted power supply to critical equipment or facilities.
[0003] The power supply equipment used in normal times usually has a long power transmission line, which is convenient for connecting with other electrical equipment. However, the excessively long line is not convenient to recycle. If the transmission line cannot be recycled in time, it is usually left on site, which may take up valuable ground space and be contaminated by dust, moisture, dirt and other pollutants, increasing the cleaning burden. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a backup power safety disconnection device. This device aims to improve the problems of excessively long transmission lines that are inconvenient to recycle and the high humidity levels in hospitals that cause equipment to be damaged by moisture.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a backup power safety cut-off device, comprising a connecting plate, universal wheels fixedly connected to the four sides of the bottom end of the connecting plate, a handle fixedly connected to the right side of the top end of the connecting plate, a power supply body fixedly connected to the top end of the connecting plate, a waterproof cover fixedly connected to the front end of the power supply body, an opening and closing plate rotatably connected to the front end of the waterproof cover, a dehumidification component fixedly connected to the rear end of the opening and closing plate, a fixing column fixedly connected to the right end of the inner wall of the waterproof cover, a rotating shaft rotatably connected to the left end of the fixing column, and a shrinking component fixedly connected to the outer wall of the rotating shaft.
[0006] As a further description of the above technical solution:
[0007] The shrinking assembly includes a connecting block, the bottom end of which is fixedly connected to the outer wall of the rotating shaft, a transmission line is fixedly connected to the inner wall of the connecting block, a ratchet ring is fixedly connected to the left end of the rotating shaft, and a pawl is rotatably connected to the left end of the inner wall of the waterproof cover corresponding to the outer diameter of the ratchet ring.
[0008] As a further description of the above technical solution:
[0009] The dehumidification component includes a sealing ring, the front end of which is fixedly connected to the rear end of the opening and closing plate. A fitting plate is fixedly connected to the rear end of the opening and closing plate corresponding to the inner wall of the sealing ring. A dehumidification plate is detachably connected to the inner wall of the fitting plate. A second fixing block is fixedly connected to both the left and right ends of the opening and closing plate. A tension spring is fixedly connected to the top of each of the second fixing blocks. A first fixing block is fixedly connected to the top of each tension spring.
[0010] As a further description of the above technical solution:
[0011] A spring plate is fixedly connected to the left end of the inner wall of the rotating shaft, and the right end of the spring plate is fixedly connected to the left end of the fixed column.
[0012] As a further description of the above technical solution:
[0013] The rear end of the transmission line is fixedly connected to the front end of the power supply body, and the left end of the rotating shaft is fixedly connected to the left end of the inner wall of the waterproof cover.
[0014] As a further description of the above technical solution:
[0015] A torsion spring is fixedly connected to the left end of the pawl, and the left end of the torsion spring is fixedly connected to the left end of the inner wall of the waterproof cover.
[0016] As a further description of the above technical solution:
[0017] The first fixing block is fixedly connected to the left and right ends of the waterproof cover at one end.
[0018] As a further description of the above technical solution:
[0019] The outer wall of the sealing ring fits into the front end of the inner wall of the waterproof cover.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the combination of a fixed column, a rotating shaft, a connecting block, a transmission line, a ratchet ring, a pawl, a spring plate, and a torsion spring facilitates the recycling of the transmission line, increases the recycling speed, helps maintain a clean and orderly working environment, reduces the risk of tripping or other safety hazards, and avoids occupying too much space and the burden of cleaning due to prolonged exposure to the outside.
[0022] 2. In this utility model, by using a combination of a waterproof cover, a hinged plate, a first fixing block, a tension spring, a second fixing block, a sealing ring, a fitting plate, and a dehumidifying plate, the transmission line is prevented from coming into contact with too many water molecules, which could lead to short circuits or malfunctions. This extends its service life and stability, reduces equipment damage and malfunctions, and improves energy utilization efficiency and equipment power generation efficiency by optimizing the working environment. Attached Figure Description
[0023] Figure 1 This is a perspective view of a backup power safety disconnection device proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the transmission line structure of a backup power safety disconnection device proposed in this utility model;
[0025] Figure 3 This is a half-sectional view of the rotating shaft of a backup power safety disconnection device proposed in this utility model;
[0026] Figure 4 This is a half-sectional view of the waterproof cover of a backup power safety cut-off device proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the tension spring structure of a backup power safety disconnection device proposed in this utility model;
[0028] Figure 6 This is a schematic diagram of the mating plate structure of a backup power safety disconnection device proposed in this utility model.
[0029] Legend:
[0030] 1. Connecting plate; 2. Casters; 3. Handle; 4. Power supply unit; 5. Waterproof cover; 6. Opening / closing plate; 7. Fixing post; 8. Rotating shaft; 9. Connecting block; 10. Transmission line; 11. Ratchet ring; 12. Pawl; 13. Spring plate; 14. Torsion spring; 15. First fixing block; 16. Tension spring; 17. Second fixing block; 18. Sealing ring; 19. Fitting plate; 20. Moisture-removing plate. Detailed Implementation
[0031] 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 protection scope of the present utility model.
[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0033] Reference Figure 1-6This utility model provides an embodiment of a backup power safety cut-off device, including a connecting plate 1. Universal wheels 2 are fixedly connected to all four sides of the bottom of the connecting plate 1. A handle 3 is fixedly connected to the right side of the top of the connecting plate 1. A power supply body 4 is fixedly connected to the top of the connecting plate 1. A waterproof cover 5 is fixedly connected to the front end of the power supply body 4. An opening and closing plate 6 is rotatably connected to the front end of the waterproof cover 5. A dehumidifying component is fixedly connected to the rear end of the opening and closing plate 6. A fixing post 7 is fixedly connected to the right end of the inner wall of the waterproof cover 5. A rotating shaft 8 is rotatably connected to the left end of the fixing post 7. A retraction component is fixedly connected to the outer wall of the rotating shaft 8. By pushing the handle 3, the universal wheels 2 drive the power supply body 4 to the desired location.
[0034] The retraction assembly includes a connecting block 9, the bottom of which is fixedly connected to the outer wall of the rotating shaft 8. A transmission line 10 is fixedly connected to the inner wall of the connecting block 9. A ratchet ring 11 is fixedly connected to the left end of the rotating shaft 8. A pawl 12 is rotatably connected to the left end of the inner wall of the waterproof cover 5, corresponding to the outer diameter of the ratchet ring 11. When the transmission line 10 is stretched outward, since one end of the transmission line 10 is connected inside the connecting block 9, the stretching of the transmission line 10 can drive the rotating shaft 8 to rotate. When the rotating shaft 8 rotates, it drives the ratchet ring 11 to rotate, and drives the spring plate 13 to stretch outward. When the rotating shaft 8 stops rotating, the torsion spring 14 uses torque to lock the pawl 12 into the ratchet ring 11 for fixation, facilitating the power supply of the transmission line 10. When the pawl 12 is pushed outward, it disengages from the ratchet ring 11. At this time, the spring plate 13 retracts inward, causing the rotating shaft 8 to rotate in the opposite direction, allowing the rotating shaft 8 to pass through the connecting block 9 to the transmission line. The fixed 10 rewraps the transmission line 10 around the surface of the rotating shaft 8 for easy recycling, improving recycling speed and helping to maintain a clean and orderly working environment. This reduces the risk of tripping or safety hazards, while also avoiding excessive space occupation and the burden of cleaning due to exposure. A spring plate 13 is fixedly connected to the left end of the inner wall of the rotating shaft 8, and the right end of the spring plate 13 is fixedly connected to the left end of the fixed post 7, facilitating the rotation of the rotating shaft 8 by the spring plate 13. The rear end of the transmission line 10 is fixedly connected to the front end of the power supply body 4, and the power supply body 4 transmits power through the transmission line 10. The left end of the rotating shaft 8 is fixedly connected to the left end of the inner wall of the waterproof cover 5, improving the stability of the rotating shaft 8. A torsion spring 14 is fixedly connected to the left end of the pawl 12, and the left end of the torsion spring 14 is fixedly connected to the left end of the inner wall of the waterproof cover 5, facilitating the torsion spring 14 to engage the pawl 12 with the ratchet ring 11.
[0035] The dehumidification component includes a sealing ring 18, the front end of which is fixedly connected to the rear end of the opening and closing plate 6. A fitting plate 19 is fixedly connected to the inner wall of the sealing ring 18 at the rear end of the opening and closing plate 6. A dehumidification plate 20 is detachably connected to the inner wall of the fitting plate 19. Second fixing blocks 17 are fixedly connected to both ends of the opening and closing plate 6. A tension spring 16 is fixedly connected to the top of each of the second fixing blocks 17. A first fixing block 15 is fixedly connected to the top of each of the tension springs 16. After the transmission line 10 is stopped and retracted, the tension spring 16 at the first fixing block 15 stretches the second fixing block 17, causing the sealing ring 18 at the opening and closing plate 6 to adhere tightly to the front end of the waterproof cover 5, maintaining a seal. The dehumidifying plate 20 at the mating plate 19 can absorb moisture in the air, keeping the transmission line 10 inside the waterproof cover 5 dry. This prevents the transmission line 10 from coming into contact with too many water molecules, which could lead to short circuits or malfunctions, thus extending its service life and stability, reducing equipment damage and malfunctions, lowering maintenance and labor costs, and improving energy utilization efficiency and equipment power generation efficiency by optimizing the working environment. The first fixing block 15 is fixedly connected to the left and right ends of the waterproof cover 5 at one end, making it easy for the tension spring 16 to pull the opening and closing plate 6 back. The outer wall of the sealing ring 18 fits with the front end of the inner wall of the waterproof cover 5, keeping the inside of the waterproof cover 5 sealed through the sealing ring 18.
[0036] Working principle: When the transmission line 10 is first stretched outward, since one end of the transmission line 10 is connected to the connecting block 9, the stretching of the transmission line 10 drives the rotating shaft 8 to rotate. The rotation of the rotating shaft 8 drives the ratchet ring 11 to rotate, which in turn stretches the spring plate 13 outward. When the rotating shaft 8 stops rotating, the torsion spring 14 uses torque to lock the pawl 12 into the ratchet ring 11 for fixation, facilitating the power supply of the transmission line 10. When the pawl 12 is pushed outward, it disengages from the ratchet ring 11. At this time, the spring plate 13 retracts inward, causing the rotating shaft 8 to rotate in the opposite direction. The connecting block 9 then secures the transmission line 10, allowing it to be rewound again around the surface of the rotating shaft 8 for easy and fast recovery. This facilitates the recovery of the transmission line 10 and improves recovery speed. To maintain a clean and orderly working environment, reduce potential tripping or safety risks, and avoid occupying too much space and the burden of cleaning due to exposure, after the transmission line 10 is taken out of use and recycled, the tension spring 16 at the first fixing block 15 stretches the second fixing block 17, causing the sealing ring 18 at the opening and closing plate 6 to adhere tightly to the front end of the waterproof cover 5, maintaining a tight seal. Meanwhile, the dehumidifying plate 20 at the fitting plate 19 can absorb moisture from the air, keeping the transmission line 10 inside the waterproof cover 5 dry, preventing the transmission line 10 from coming into contact with too many water molecules, which could lead to short circuits or malfunctions, extending its service life and stability, reducing equipment damage and malfunctions, lowering maintenance and labor costs, and improving energy utilization efficiency and equipment power generation efficiency due to the optimized working environment.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A backup power safety disconnection device, comprising a connecting plate (1), characterized in that: The bottom of the connecting plate (1) is fixedly connected to four universal wheels (2), the top right side of the connecting plate (1) is fixedly connected to a handle (3), the top of the connecting plate (1) is fixedly connected to a power supply body (4), the front end of the power supply body (4) is fixedly connected to a waterproof cover (5), the front end of the waterproof cover (5) is rotatably connected to an opening and closing plate (6), the rear end of the opening and closing plate (6) is fixedly connected to a dehumidification component, the right end of the inner wall of the waterproof cover (5) is fixedly connected to a fixing column (7), the left end of the fixing column (7) is rotatably connected to a rotating shaft (8), and the outer wall of the rotating shaft (8) is fixedly connected to a shrinkage component.
2. The backup power safety disconnection device according to claim 1, characterized in that: The shrinking assembly includes a connecting block (9), the bottom end of which is fixedly connected to the outer wall of the rotating shaft (8), a transmission line (10) is fixedly connected to the inner wall of the connecting block (9), a ratchet ring (11) is fixedly connected to the left end of the rotating shaft (8), and a pawl (12) is rotatably connected to the left end of the inner wall of the waterproof cover (5) corresponding to the outer diameter of the ratchet ring (11).
3. The backup power safety disconnection device according to claim 1, characterized in that: The dehumidification component includes a sealing ring (18), the front end of which is fixedly connected to the rear end of the opening and closing plate (6), and a fitting plate (19) is fixedly connected to the inner wall of the sealing ring (18) at the rear end of the opening and closing plate (6). A dehumidification plate (20) is detachably connected to the inner wall of the fitting plate (19). A second fixing block (17) is fixedly connected to both the left and right ends of the opening and closing plate (6). A tension spring (16) is fixedly connected to the top of each of the second fixing blocks (17), and a first fixing block (15) is fixedly connected to the top of each tension spring (16).
4. A backup power safety disconnection device according to claim 2, characterized in that: A spring plate (13) is fixedly connected to the left end of the inner wall of the rotating shaft (8), and the right end of the spring plate (13) is fixedly connected to the left end of the fixed column (7).
5. A backup power safety disconnection device according to claim 2, characterized in that: The rear end of the transmission line (10) is fixedly connected to the front end of the power supply body (4), and the left end of the rotating shaft (8) is fixedly connected to the left end of the inner wall of the waterproof cover (5).
6. A backup power safety disconnection device according to claim 2, characterized in that: The left end of the pawl (12) is fixedly connected to a torsion spring (14), and the left end of the torsion spring (14) is fixedly connected to the left end of the inner wall of the waterproof cover (5).
7. A backup power safety disconnection device according to claim 3, characterized in that: The first fixing block (15) is fixedly connected to the left and right ends of the waterproof cover (5) at one end.
8. A backup power safety disconnection device according to claim 3, characterized in that: The outer wall of the sealing ring (18) fits into the front end of the inner wall of the waterproof cover (5).