Wheelchair with anti-falling function

By adopting a technical solution that incorporates anti-fall devices, a wheelchair with anti-fall components was designed, solving the problem of wheelchair tipping due to changes in the user's posture, and achieving active protection for the wheelchair and patient safety.

CN223696196UActive Publication Date: 2025-12-23JILIN UNIVERSITY
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Patent Information

Application Number
CN202520244564.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-23
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing wheelchairs lack the function of actively monitoring the user's posture and cannot prevent the user from falling due to the wheelchair tipping over in time. The protective effect of existing seat belts is limited.

Method used

A fall prevention component was designed, including a fixing plate, a sliding rod, a connecting block, and fall prevention wheels. The combination of the sliding rod and fall prevention wheels supports the structure and, with the adjustment of the threaded rod, prevents the wheelchair from tipping backward. The patient is secured by a fixing strap and a fixing strip to ensure safety.

Benefits of technology

It effectively prevents wheelchair users from falling due to tilting backward, ensuring the stability and safety of patients in the wheelchair and avoiding injuries caused by wheelchair tipping.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of anti-falling wheelchairs, in particular to a wheelchair with an anti-falling function. The two sides of the seat plate are fixedly connected with a mouth-shaped frame, an anti-falling assembly is arranged at the position, close to the middle, of the bottom side of the seat plate, the anti-falling assembly comprises a fixing plate, the fixing plate is fixedly connected to the position, close to the middle, of the bottom side of the seat plate, sliding holes are formed in the positions, close to the two corners of the bottom side, of the fixing plate, and sliding rods are installed in the two sliding holes in a sliding mode. By means of the anti-falling assembly, when the gravity center of a patient faces backwards, the wheelchair can be supported by the fixing plate through the two sliding rods and the anti-falling wheels on the two connecting blocks, and the wheelchair can be prevented from falling backwards; and meanwhile, the two connecting blocks, the two anti-falling wheels and the two sliding rods can be driven to slide on the fixing plate by rotating the threaded rod, so that the two connecting blocks, the two anti-falling wheels and the two sliding rods can be adjusted, and the situation that pushing of the wheelchair is affected due to too much extension is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti-falling wheelchair, specifically relates to a wheelchair with anti-falling function. BACKGROUND

[0002] Most of the existing wheelchairs do not have the function of actively monitoring the posture of the user. Once the user starts to tilt or has a tendency to fall, the wheelchair cannot react in time to prevent the occurrence of falling. Compared with modern intelligent devices, it is like a passive tool that can only move under the operation of the user, and cannot monitor and protect the safety of the user in real time. Even some wheelchairs are equipped with simple safety belts, but the protective effect is very limited. The safety belt is mainly to prevent the user from sliding off the wheelchair, but it has no preventive effect on the falling injury caused by the tilting of the wheelchair. Therefore, a wheelchair with anti-falling function is proposed. SUMMARY

[0003] The utility model aims at providing a wheelchair with anti-falling function to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides a wheelchair with anti-falling function, which comprises a seat plate, two sides of the seat plate are fixedly connected with a mouth-shaped frame, a bottom side of the seat plate is provided with an anti-falling assembly near the middle position, the anti-falling assembly comprises a fixed plate, the fixed plate is fixedly connected to the bottom side of the seat plate near the middle position, a sliding hole is formed in the fixed plate near the bottom side of two corners, a sliding rod is slidably installed in each of the two sliding holes, a connecting block is fixedly connected to one end of the two sliding rods, an anti-falling wheel is rotatably installed on the two connecting blocks, a fixed strip is fixedly connected between the two connecting blocks, a threaded hole is formed in the middle of the fixed plate near the bottom side, and the threaded hole is located between the two sliding holes, a threaded rod is rotatably installed on one side of the fixed strip at the middle position, and the threaded rod is screwedly connected in the threaded hole.

[0005] As a further improvement of the technical solution, a drive wheel is rotatably installed on the bottom side of each of the two mouth-shaped frames near the middle position, and a fixed belt is fixedly connected to the top side of each of the two mouth-shaped frames near the middle position. Under the action of the two fixed belts, the patient is fixed on the wheelchair.

[0006] As a further improvement of the technical solution, a connecting strip is fixedly connected to one side of each of the two mouth-shaped frames near the seat plate, and a pedal is fixedly connected to the other end of each of the two connecting strips. The two pedals are used to support the legs of the patient.

[0007] As a further improvement of the technical solution, the bottom side of each of the two mouth-shaped frames is rotationally connected with a rotating wheel near the connecting strip, and the two rotating wheels are used for guiding the wheelchair.

[0008] As a further improvement of the technical solution, the top side of the seat plate is fixedly connected with a backrest near one side, and the two sides of the backrest are fixedly connected to the two mouth-shaped frames, two handrails are fixedly connected to the backrest, and the two handrails are arranged away from each other.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] In the wheelchair with the anti-falling function, when the center of gravity of the patient moves backward, the fixed plate can support the wheelchair through the two sliding rods and the two anti-falling wheels on the two connecting blocks, so that the wheelchair can be prevented from falling backward, and the two connecting blocks, the two anti-falling wheels and the two sliding rods can be adjusted on the fixed plate through the rotating threaded rods, so that the wheelchair can be prevented from being affected by being pushed too much. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is one of the overall structure schematic diagrams of the utility model;

[0012] Fig. 2 It is the second overall structure schematic diagram of the utility model;

[0013] Fig. 3 It is a structure schematic diagram of the anti-falling assembly of the utility model.

[0014] The meanings of the various reference numbers in the drawings are as follows:

[0015] 1, seat plate; 2, mouth-shaped frame; 3, anti-falling assembly; 31, fixed plate; 32, sliding rod; 33, connecting block; 34, anti-falling wheel; 35, fixed strip; 36, threaded rod; 4, driving wheel; 5, connecting strip; 6, pedal; 7, rotating wheel; 8, backrest. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0017] In the description of the utility model, it is understood that the directions or position relations of the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0018] Embodiment 1

[0019] Please refer to Figs. 1-3 As shown in the figure, the embodiment provides a wheelchair with anti-falling function, which comprises a seat plate 1, both sides of the seat plate 1 are fixedly connected with a mouth-shaped frame 2, the two mouth-shaped frames 2 are convenient for patients to hold, and can limit the position of the patient, the bottom side of the seat plate 1 is provided with an anti-falling assembly 3 near the middle position, the wheelchair can be supported by the anti-falling assembly 3, so as to avoid falling backward, the anti-falling assembly 3 comprises a fixed plate 31, the fixed plate 31 is fixedly connected to the bottom side of the seat plate 1 near the middle position, sliding holes are formed in the fixed plate 31 near the bottom side of the two corners, sliding rods 32 are slidingly installed in the two sliding holes, the two sliding rods 32 can slide on the fixed plate 31 through the two sliding holes, and the sliding rods 32 can be limited, one end of the two sliding rods 32 is fixedly connected with a connecting block 33, an anti-falling wheel 34 is rotatably installed on the two connecting blocks 33, the wheelchair can be supported by the anti-falling wheel 34 on the fixed plate 31 through the two sliding rods 32 and the two connecting blocks 33, so as to avoid falling backward, a fixed strip 35 is fixedly connected between the two connecting blocks 33, a threaded hole is formed in the middle of the fixed plate 31 near the bottom side, and the threaded hole is located between the two sliding holes, a threaded rod 36 is rotatably installed on one side of the fixed strip 35 at the middle position, the threaded rod 36 is screwedly connected in the threaded hole, and the two connecting blocks 33, the two anti-falling wheels 34 and the two sliding rods 32 can slide on the fixed plate 31 by rotating the threaded rod 36, so as to adjust the two connecting blocks 33, the two anti-falling wheels 34 and the two sliding rods 32.

[0020] The bottom side of the two mouth shape frames 2 is rotatably installed with a driving wheel 4 near the middle position, and the top side of the two mouth shape frames 2 is fixedly connected with a fixing belt, so that the patient is fixed on the wheelchair under the action of the two fixing belts, and the patient is prevented from sliding off the wheelchair, one side of the two mouth shape frames 2 is fixedly connected with a connecting strip 5 near the position of the seat plate 1, and the other end of the two connecting strips 5 is fixedly connected with a pedal 6, the two pedals 6 are used for supporting the legs of the patient, and the bottom side of the two mouth shape frames 2 is rotatably connected with a rotating wheel 7 near the position of the connecting strip 5, and the two rotating wheels 7 are used for guiding the wheelchair, and the top side of the seat plate 1 is fixedly connected with a back plate 8 near one side, and the two sides of the back plate 8 are fixedly connected on the two mouth shape frames 2, and the back plate 8 is fixedly connected with two handles, and the two handles are arranged away from each other.

[0021] The wheelchair with the anti-falling function of the embodiment is used in specific use, first, the patient is moved to the wheelchair, and the patient is fixed on the wheelchair through the two fixing belts, so that the patient is prevented from sliding off the wheelchair, the wheelchair is moved through the two handles, and the wheelchair is conveniently pushed and turned under the action of the driving wheel 4 and the rotating wheel 7, the two anti-falling wheels 34 are not in contact with the ground when the wheelchair moves, when the center of gravity of the patient moves backward, the fixed plate 31 can support the wheelchair through the two sliding rods 32 and the anti-falling wheels 34 on the two connecting blocks 33, so that the wheelchair is prevented from falling backward, and the two connecting blocks 33, the two anti-falling wheels 34 and the two sliding rods 32 can slide on the fixed plate 31 through the rotating threaded rod 36, so that the two connecting blocks 33, the two anti-falling wheels 34 and the two sliding rods 32 can be adjusted, and the wheelchair is prevented from being pushed too much.

[0022] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A wheelchair with a fall-prevention function, comprising a seat plate (1), characterized in that: Both sides of the seat plate (1) are fixedly connected with mouth-shaped frames (2), the bottom side of the seat plate (1) is provided with an anti-falling assembly (3) near the middle position, the anti-falling assembly (3) comprises a fixed plate (31) fixedly connected to the bottom side of the seat plate (1) near the middle position, sliding holes are formed in the fixed plate (31) near the bottom side of the two corners, sliding rods (32) are slidably installed in the two sliding holes, the sliding rods (32) are fixedly connected with connecting blocks (33) at one end, the connecting blocks (33) are rotatably installed with anti-falling wheels (34), the connecting blocks (33) are fixedly connected with fixed strips (35) between them, a threaded hole is formed in the middle of the fixed plate (31) near the bottom side, and the threaded hole is located between the two sliding holes, a threaded rod (36) is rotatably installed on one side of the fixed strip (35) at the middle position, and the threaded rod (36) is threadedly connected in the threaded hole.

2. The wheelchair with a fall prevention function according to claim 1, characterized in that: The bottom side of the two mouth-shaped frames (2) is rotatably installed with a driving wheel (4) near the middle position, and the top side of the two mouth-shaped frames (2) is fixedly connected with a fixed belt, so that the patient is fixed on the wheelchair under the action of the two fixed belts.

3. The wheelchair with fall prevention function according to claim 1, characterized in that: One side of the two mouth-shaped frames (2) is fixedly connected with a connecting strip (5) near the seat plate (1), and the other end of the two connecting strips (5) is fixedly connected with a pedal (6), and the two pedals (6) are used for supporting the legs of the patient.

4. The wheelchair with fall prevention function according to claim 1, characterized in that: The bottom side of the two mouth-shaped frames (2) is rotatably connected with a rotating wheel (7) near the connecting strip (5), and the two rotating wheels (7) are used for guiding the wheelchair.

5. The wheelchair with fall prevention function according to claim 1, characterized in that: The top side of the seat plate (1) is fixedly connected with a backrest (8) near one side, and the two sides of the backrest (8) are fixedly connected with the two mouth-shaped frames (2), two handles are fixedly connected with the backrest (8), and the two handles are arranged away from each other.