Wheelchair high-position acousto-optic warning and one-key help system

Abstract

The application discloses a wheelchair high-position sound-light warning and one-key emergency help system and relates to the technical field of wheelchair safety auxiliary equipment. The system comprises a high-position sound-light warning module, a telescopic lifting rod, a one-key emergency help button and a control unit; the high-position sound-light warning module is arranged at a height above the shoulders of a passenger, the telescopic lifting rod is used for lifting and storage, the one-key emergency help button is convenient for the passenger to trigger, and the control unit is used for realizing linkage between driving warning and emergency alarm. The application has the advantages of high warning position, clear identification, dual functions of daily driving warning and emergency help, convenient installation, wide adaptability, no need to transform the wheelchair body and effective improvement of the safety of the wheelchair.

Description

[0001] Technical Field This invention relates to the field of wheelchair safety assistive devices, specifically to a high-position audible and visual warning and one-button emergency assistance system applicable to manual wheelchairs, electric wheelchairs, and low-speed assistive vehicles for the disabled (hereinafter collectively referred to as wheelchairs).

[0002] Background Technology Currently, most wheelchairs on the market lack effective external warning devices and emergency assistance systems. During operation, due to their low overall height, they are easily overlooked by vehicles and pedestrians, posing a significant traffic safety hazard. Furthermore, in emergencies such as sudden illness, accidental falls, or wheelchair malfunctions, occupants cannot quickly send out distress signals, delaying rescue efforts. Some existing wheelchairs are only equipped with simple warning lights, providing only basic alerts without emergency assistance linkage functions. Moreover, the warning devices are often inconspicuous, easily obstructed, and have poor warning effectiveness. Some manufacturers produce warning lights separately, which cannot address the emergency assistance needs of wheelchair users, making it difficult to form a complete safety system and failing to meet the actual safety needs of wheelchair users.

[0003] Summary of the Invention The technical problem to be solved by the present invention is that the safety devices of existing manual wheelchairs, electric wheelchairs and low-speed assistive vehicles for the disabled have poor warning effects, the warning position is low and easily obscured, and there is a lack of emergency help function linked to the warning device. The technical solution adopted by this invention to solve its technical problem is: a high-position audible and visual warning and one-button emergency assistance system for wheelchairs, including a high-position audible and visual warning module, a retractable lifting rod, a one-button emergency assistance button, and a control unit; the high-position audible and visual warning module is set at a height above the shoulder of the wheelchair occupant and not lower than the waist height of the occupant in a seated position, for emitting visible light and audible sound warnings to ensure clear identification by distant vehicles and pedestrians while driving on the road; one end of the retractable lifting rod is connected to the high-position audible and visual warning module, and the other end is connected to the wheelchair body, for raising the high-position audible and visual warning module to a high position or storing it in a low position; the one-button emergency assistance button is set at the wheelchair control handle or armrest for easy triggering by the occupant; the control unit is electrically connected to the high-position audible and visual warning module, and the one-button emergency assistance button communicates wirelessly or via Bluetooth with the control unit; when the wheelchair is in motion, the control unit controls the high-position audible and visual warning module to continuously or intermittently emit warning signals; when the one-button emergency assistance button is triggered, the control unit controls the high-position audible and visual warning module to emit a strong audible and visual alarm signal, and can also send an emergency assistance signal in conjunction with it. Furthermore, the retractable lifting rod is installed on the back of the wheelchair, the vertical uprights, or the armrest bracket via a fixing clamp. When fully extended, the height of the high-positioned audible and visual warning module is no less than the shoulder height of the occupant and no less than the lumbar height of the occupant in a seated position. Furthermore, the high-positioned audible and visual warning module is linked to the one-button emergency assistance button: during normal driving, the high-positioned audible and visual warning module provides a continuous warning with low brightness and low volume; after triggering the one-button emergency assistance, the high-positioned audible and visual warning module switches to high-brightness flashing + high-decibel warning sound or voice call (I need help), forming an emergency warning state distinct from normal driving. Furthermore, the fixing clamp is a universal clamping structure, adaptable to wheelchair backrest uprights, vertical rods, or armrest brackets of different diameters and materials, allowing installation without modification to the wheelchair itself. Furthermore, the system is powered by an independent power supply or can be powered from the wheelchair's existing power source; both methods are compatible.

[0004] The specific implementation method is described below with reference to the accompanying drawings. The examples given are only for explaining the invention and are not intended to limit the scope of the invention. Referring to the accompanying drawings, the wheelchair high-position audible and visual warning and one-button emergency assistance system in this embodiment includes a high-position audible and visual warning module, a retractable lifting rod, a one-button emergency assistance button, and a control unit. The high-position audible and visual warning module uses an LED warning light combined with a sound unit, installed at the top of the retractable lifting rod. The bottom end of the retractable lifting rod is clamped to the vertical support on the back of the wheelchair or at the armrest bracket using a universal fixing clamp. After installation, the high-position audible and visual warning module is positioned above the shoulder level and above the waist level of the passenger in a seated position. The one-button emergency assistance button is installed near the wheelchair control handle or armrest for easy one-handed activation by the passenger. The control unit is installed in the area of ​​the retractable lifting rod and is connected to the high-position audible and visual warning module via wiring, and to the one-button emergency assistance button via Bluetooth or wireless communication. System working principle: When the wheelchair is in normal motion, the control unit drives the high-position audible and visual warning module to continuously warn surrounding vehicles and pedestrians with slow flashing LEDs and low-volume buzzers. When the occupant encounters an emergency, pressing the one-button emergency help button will immediately switch the control unit to high-brightness LEDs flashing rapidly, high-decibel warning sounds, or voice calls (I need help), creating a strong emergency warning signal to facilitate rapid discovery and assistance from those nearby. When not in use, the retractable lifting rod can be retracted to lower the height of the high-position audible and visual warning module without affecting the normal storage and movement of the wheelchair. Attached Figure Description

[0005] Figure 1. Schematic diagram of the overall structure of the wheelchair high-position audio-visual warning and one-button emergency assistance system. Figure 2. Schematic diagram of the extended lifting rod in the extended state. Figure 3. Schematic diagram of the retractable lifting rod in its stowed state. Figure 4. Schematic diagram of the installation location of the one-click help button.

Claims

1. A wheelchair high-position audible and visual warning and one-button emergency assistance system, characterized in that, include: The system includes a high-positioned audio-visual warning module, a retractable lifting rod, a one-button emergency assistance module, and a control unit module. The high-positioned audio-visual warning module is positioned above the shoulder height of the wheelchair user and no lower than the waist height of the user in a seated position. It emits visible light and audible sound warnings to ensure clear identification by distant vehicles and pedestrians while the user is on the road. One end of the retractable lifting rod is connected to the high-positioned audio-visual warning module, and the other end is connected to the wheelchair body. It is used to raise the high-positioned audio-visual warning module to a high position or retract it to a low position. The one-button emergency help button is located on the wheelchair control handle or armrest for easy activation by the passenger; the control unit is connected to the high-position audible and visual warning module via wiring and wirelessly connected to the one-button emergency help button; when the wheelchair is in motion, the control unit continuously or intermittently emits warning signals to the high-position audible and visual warning module; when the one-button emergency help button is triggered, the control unit emits a strong audible and visual alarm signal to the high-position audible and visual warning module and can also send a help signal in conjunction with it.

2. The wheelchair high-position audible and visual warning and one-button emergency assistance system according to claim 1, characterized in that, The retractable lifting rod is installed on the back of the wheelchair, the vertical upright of the wheelchair, or the armrest bracket by a fixing clamp. When the high-position audible and visual warning module is fully extended, its height is not lower than the shoulder height of the passenger and not lower than the waist height of the passenger in a sitting position.

3. The wheelchair high-position audible and visual warning and one-button emergency assistance system according to claim 1, characterized in that, The high-position audio-visual warning module and the one-button emergency help button are designed to work together: during normal driving, the high-position audio-visual warning module provides a continuous warning with low brightness and low volume; after the one-button emergency help button is triggered, the high-position audio-visual warning module switches to high-brightness flashing and high-decibel warning sound or voice call (I need help), forming an emergency warning state that is different from normal driving.

4. The wheelchair high-position audible and visual warning and one-button emergency call system according to claim 1, characterized in that, The system can be powered by either an independent power supply or an external power supply for the wheelchair, and both methods are compatible.

5. The wheelchair high-position audible and visual warning and one-button emergency assistance system according to claim 1, characterized in that, The fixing clamp is a universal clamping structure that can be adapted to wheelchair backrest uprights, vertical uprights or armrest brackets of different pipe diameters and materials, and can be installed without modifying the wheelchair itself.

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