Safety interlocking device
By designing a safety interlock device in the modular shelter, and using detection and adjustment mechanisms to achieve interlock control of the skylight and lifting platform, the safety accident problem caused by the lack of safety interlocks in existing technologies is solved, ensuring safe and reliable operation and extending the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOJI SAIWEI HEAVY DUTY MACHINE TOOL MFG CO LTD
- Filing Date
- 2025-10-27
- Publication Date
- 2026-04-17
AI Technical Summary
When existing modular shelters, lighting equipment, and lifting platforms are used independently, they lack safety interlocking functions, which can easily lead to safety accidents.
A safety interlock device was designed, which detects the position status of the sunroof and the lifting platform through a detection mechanism and achieves interlock control through a relay. Combined with the adjustment mechanism, it provides a buffer structure to avoid rigid collisions.
It ensures safe and reliable operation of the skylight and lifting platform, avoids safety accidents, and extends the service life of the device.
Smart Images

Figure CN224134309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of emergency shelter technology, and in particular to a safety interlock device. Background Technology
[0002] Emergency shelters are modular, mobile emergency facilities characterized by rapid deployment, versatility, and adaptability. They are widely used in medical rescue, disaster response, and safety education.
[0003] However, existing modular shelters, lighting equipment, and lifting platforms are used separately. After the lighting equipment and lifting platforms are installed in the modular shelter, they do not have a safety interlock function. If the operation is not careful, a safety accident can easily occur. Therefore, a safety interlock device is needed to make the operation safer, taking into account the usage requirements.
[0004] Therefore, we propose a safety interlock device. Utility Model Content
[0005] The purpose of this utility model is to solve the shortcomings of the existing technology, which is that the cabin, lighting equipment and lifting platform are used separately, and the lighting equipment and lifting platform are not equipped with safety interlock function after being installed in the cabin. The safety accidents can easily occur if the operation is not careful. Therefore, a safety interlock device is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A safety interlock device, comprising:
[0008] The container has a window at its top, and an electric push rod and a mounting frame are fixedly installed at the top of the container. A skylight is slidably connected between the inner walls on both sides of the mounting frame, and the output shaft of the electric push rod is fixed to the skylight.
[0009] The lifting platform is fixed to the bottom inner wall of the container. A control box is fixed to one side of the lifting platform, and a mounting base is fixed to the top of the lifting platform. A rotating shaft is rotatably passed through one side of the mounting base, and a lighting lamp is fixed to the outer wall of the rotating shaft through a bracket.
[0010] The testing equipment is fixedly installed on the inner wall of the top of the cabin, one side of the lifting platform, and the inner walls of both sides of the mounting frame, respectively, to check whether the skylight and the lifting platform are in place.
[0011] The adjustment mechanism, located inside the mounting base, is used to adjust the angle of the lighting lamp.
[0012] In one possible design, the detection mechanism includes a mounting plate, a slider slidably connected to the inner side of the mounting plate, a touch switch fixed on one side of the slider, and a spring fixed between the slider and the mounting plate via a spring seat.
[0013] In one possible design, the adjustment mechanism includes a motor fixed to the inner wall of one side of the mounting base, with gears fixed to one end of the motor output shaft and the outer wall of the shaft, and the two gears meshing together.
[0014] In one possible design, a sealing ring is embedded in the top edge of the window.
[0015] In one possible design, a cover is fixed to the top of the cabin, and an electric push rod is located inside the cover.
[0016] In one possible design, the top and bottom of the modular container are fixed with connecting plates, and one side of the connecting plates has multiple through holes.
[0017] In this application, when using the lighting, the electric push rod is activated to open the skylight. One side of the skylight moves away from the touch switch. When the skylight contacts another touch switch, it indicates that the skylight is fully open. At this time, the electric push rod is closed, and then the lifting platform is activated. The lifting platform moves away from the touch switch on one side. When the surface of the lifting platform contacts the touch switch on the inner wall of the top of the container, it indicates that the lifting platform has risen to the designated position. At this time, the lifting platform is closed, the lighting extends out of the window, and then the angle of the rotating shaft and the lighting can be adjusted using the motor.
[0018] Beneficial effects: In this utility model, the safety interlock device, through the setting of detection mechanism and other structures, can install relays in the control box and electrically connect them to multiple touch switches, which are used to detect whether the sunroof is open or closed and whether the lifting platform is raised or lowered in place, and to perform interlock control.
[0019] In this utility model, the safety interlock device, through the setting of structures such as mounting plate, touch switch and spring, can provide buffer for touch switch, avoid rigid collision, and extend service life;
[0020] In this invention, relays can be installed in the control box and electrically connected to multiple touch switches respectively. These relays are used to detect whether the sunroof is open or closed and whether the lifting platform is raised or lowered to the correct position, and to perform interlocking control. This provides a buffer for the touch switches, avoids rigid collisions, and extends their service life. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a safety interlocking device proposed in this utility model;
[0022] Figure 2 This is a partial three-dimensional structural schematic diagram from a first-view perspective of a safety interlocking device proposed in this utility model.
[0023] Figure 3 This is a partial three-dimensional structural schematic diagram from a second perspective of a safety interlocking device proposed in this utility model.
[0024] Figure 4 This is a partial three-dimensional structural diagram from a third-view perspective of a safety interlocking device proposed in this utility model.
[0025] In the diagram: 1. Container; 2. Connecting plate; 3. Lifting platform; 4. Detection mechanism; 5. Control box; 6. Mounting base; 7. Rotating shaft; 8. Bracket; 9. Lighting lamp; 10. Motor; 11. Mounting bracket; 12. Window; 13. Sealing ring; 14. Skylight; 15. Electric push rod; 16. Cover; 17. Mounting plate; 18. Slider; 19. Spring; 20. Touch switch. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0027] In one embodiment: Refer to Figures 1-4 A safety interlocking device includes: a modular cabin 1, a lifting platform 3, a detection mechanism 4, and an adjustment mechanism. A window 12 is provided at the top of the modular cabin 1, and an electric push rod 15 and a mounting frame 11 are fixedly installed at the top of the modular cabin 1. A skylight 14 is slidably connected between the inner walls of both sides of the mounting frame 11. The output shaft of the electric push rod 15 is fixedly connected to the skylight 14, and is used to push the skylight 14 to slide along the mounting frame 11 to open or close the window 12.
[0028] The lifting platform 3 is fixedly installed on the bottom inner wall of the container 1, and a mounting base 6 is fixedly installed on its top. A rotating shaft 7 is rotatably inserted through one side of the mounting base 6, and a lighting lamp 9 is fixedly installed on the outer wall of the rotating shaft 7 via a bracket 8. A control box 5 is also fixedly installed on one side of the lifting platform 3 for integrating electrical control components.
[0029] The testing mechanism 4 includes multiple testing units respectively fixedly installed on the inner top wall of the container 1, one side of the lifting platform 3, and the inner sides of the mounting frame 11. Each testing unit includes a mounting plate 17, with a slider 18 slidably connected to the inner side of the mounting plate 17. A touch switch 20 is fixedly installed on one side of the slider 18, and a spring 19 is fixedly installed between the slider 18 and the mounting plate 17 via a spring seat. The spring 19 provides elastic support for the slider 18, allowing the touch switch 20 to move with cushioning when contacted by a component, avoiding rigid collisions.
[0030] The adjustment mechanism is located inside the mounting base 6 and includes a motor 10 fixedly mounted on the inner wall of one side of the mounting base 6. A gear is fixedly mounted on one end of the output shaft of the motor 10 and the outer wall of the rotating shaft 7, and the two gears mesh with each other. When the motor 10 is running, it drives the rotating shaft 7 to rotate via gear transmission, thereby adjusting the illumination angle of the lighting lamp 9.
[0031] This application can be used in the field of emergency shelters, or in other fields applicable to this application.
[0032] In another embodiment: a safety interlock device applied to the field of emergency shelters;
[0033] In another aspect of this embodiment, a sealing ring 13 is embedded at the top edge of the window 12 to achieve a seal when the skylight 14 is closed, preventing external impurities from entering the cabin.
[0034] A cover 16 is also fixedly installed on the top of the shelter 1, and an electric push rod 15 is located inside the cover 16, which serves as a protective and shielding function.
[0035] Connecting plates 2 are fixedly installed at the top and bottom of the container 1. Each connecting plate 2 has multiple through holes on one side for connecting and fixing the device to external equipment or installation foundation.
[0036] The device operates as follows: When lighting 9 is needed, the electric push rod 15 is activated to open the skylight 14. As the skylight 14 slides, it gradually disengages from the touch switch 20 on one side. When it contacts the touch switch 20 on the other side, it indicates that the skylight 14 is fully open, and the electric push rod 15 stops. Then, the lifting platform 3 is activated to rise. As the platform rises, it gradually disengages from the touch switch 20 at its bottom. When the top surface of the lifting platform 3 contacts the touch switch 20 located on the inner wall of the top of the shelter 1, it indicates that the lifting platform 3 has reached the designated position and stops. At this point, lighting 9 extends out of window 12. Finally, the motor 10 drives the rotating shaft 7 to rotate, adjusting the lighting 9 to the desired angle.
[0037] In this embodiment, the detection mechanism 4 detects the position status of the sunroof 14 and the lifting platform 3 through multiple touch switches 20. Relays can be installed in the control box 5 and electrically connected to each touch switch 20 to achieve interlocked control of the sunroof and lifting platform movements, ensuring safe and reliable operation. The spring 19 structure provides cushioning for the touch switches 20, preventing rigid collisions between components and extending the service life of the device.
[0038] However, as is well known to those skilled in the art, the working principles and wiring methods of the lifting platform 3, lighting lamp 9, motor 10, electric push rod 15 and touch switch 20 are all conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.
[0039] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A safety interlock device, characterized by, include: The container (1) has a window (12) at the top and an electric push rod (15) and a mounting frame (11) fixed at the top. A skylight (14) is slidably connected between the inner walls on both sides of the mounting frame (11). The output shaft of the electric push rod (15) is fixed to the skylight (14). The lifting platform (3) is fixed to the bottom inner wall of the container (1). A control box (5) is fixed to one side of the lifting platform (3). A mounting base (6) is fixed to the top of the lifting platform (3). A rotating shaft (7) is rotatably passed through one side of the mounting base (6). A lighting lamp (9) is fixed to the outer wall of the rotating shaft (7) through a bracket (8). The detection mechanism (4) is fixedly installed on the inner wall of the top of the cabin (1), one side of the lifting platform (3) and the inner walls of both sides of the mounting frame (11), respectively, to detect whether the skylight (14) and the lifting platform (3) are in place; An adjustment mechanism is located inside the mounting base (6) and is used to adjust the angle of the lighting lamp (9).
2. A safety interlock device according to claim 1, wherein The detection mechanism (4) includes a mounting plate (17), a slider (18) is slidably connected to the inner side of the mounting plate (17), a touch switch (20) is fixed on one side of the slider (18), and a spring (19) is fixed between the slider (18) and the mounting plate (17) through a spring seat.
3. A safety interlock device according to claim 2, wherein, The adjustment mechanism includes a motor (10) fixed on the inner wall of one side of the mounting base (6). Gears are fixed on one end of the output shaft of the motor (10) and the outer wall of the rotating shaft (7), and the two gears mesh with each other.
4. A safety interlock device according to claim 3, wherein A sealing ring (13) is embedded at the top edge of the window (12).
5. A safety interlock device according to claim 4, characterized in that, The top of the container (1) is fixed with a cover (16), and the electric push rod (15) is located inside the cover (16).
6. A safety interlock device according to claim 5, wherein, The top and bottom of the container (1) are both fixed with connecting plates (2), and multiple through holes are opened on one side of the connecting plate (2).