CN213788294U

CN213788294U - Autonomous lying-assisting and standing-assisting wheelchair

Info

Publication number: CN213788294U
Application number: CN202022599718.0U
Authority: CN
Inventors: 王川伟; 强义威; 徐敏敏; 杜昱阳; 田金博; 董子墨; 石东
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-27
Anticipated expiration: 2030-11-11

Abstract

The utility model discloses an autonomous reclining aid station wheelchair. The wheelchair body comprises a backrest frame, a seat frame and a frame which are hinged in sequence, and a backrest and a seat respectively installed on the backrest frame, the seat frame and the frame. A push rod I is horizontally hinged on the inner side of the frame, and the backrest frame is hinged with the push rod extension rod of the push rod I through a curved link. The upper and lower ends of the rod II and the push rod II are hinged with the lower bottom surface of the seat frame and the inner side of the frame respectively. The pedal is connected to the limit guide rail through the pedal connecting rod. The utility model adds the functions of standing assistance and lying assistance on the basis of ensuring the functions of the traditional ordinary wheelchair, aiming at solving the problem that the elderly need assistance from others to stand, and providing a place for the elderly to rest, thereby improving the quality of life of the elderly .

Description

Autonomous lying-assisting and standing-assisting wheelchair

Technical Field

The utility model relates to a wheelchair, concretely relates to self-contained helps and lies and helps a station wheelchair.

Background

In recent years, China has entered an aging society, the number of elderly people is increasing, the demand for products for helping the elderly is increasing day by day, and the improvement of the quality of life of the elderly is urgent. Therefore, the research on the aging-assisting product meeting the physical and mental requirements of the old people solves the difficulty and inconvenience caused by the attenuation of the physiological and psychological functions of the old people, soothes the mental world of the old people, provides warm humanistic care for the old people, enables the old people to live a high-quality happy life, and is an important responsibility of society, enterprises and designers. The appearance of the wheelchair provides convenient conditions for the independent travel of the old. With the development of economy, the demand of wheelchairs increases year by year, and a wide development space is provided for old-people assisting machinery.

The common wheelchair can only replace the walking function, and the old people are inconvenient in legs and feet, easy to have dizziness, dizzy and forward leaning of the body when sitting and standing for a long time, easy to have danger, and need to help other people to stand up, and the old people can not lie on the wheelchair for rest.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an autonomous helps to lie and helps a wheelchair has increased the function of helping the station and helping to lie on the function basis of guaranteeing the ordinary wheelchair of tradition, aims at solving the old person and needs other people to assist the problem of standing to provide the place of having a rest for the old person, thereby improve old person's quality of life.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an autonomous lying-assisting and station-assisting wheelchair comprises a wheelchair body, rear wheels which are arranged on two sides of the rear part of the wheelchair body and drive the wheelchair to move forwards and backwards through a direct-current brushless speed-reducing linear motor, universal wheels which are arranged on two sides of the front part of the wheelchair body and are used for steering, the wheelchair body is including articulated back frame in proper order, the seat frame, the frame and install respectively at the back frame, the seat frame, the back in the frame, seat and backplate, frame medial surface level articulates a push rod I, the back frame is articulated with push rod I's push rod extension rod through bent shape connecting rod, the frame inboard is still installed one to incline to be used for driving the push rod II of seat frame upset, both ends respectively with the lower bottom surface of seat frame about the push rod II, the medial surface of frame is articulated, the lower bottom surface of seat frame is through a limit rail that seat connecting rod installation is used for installing the running-board, the running-board passes through the running-board connecting rod and realizes the butt joint with limit rail.

Furthermore, a group of side plates are symmetrically arranged on two sides of the chair seat frame, and buttons used for controlling the push rod I and the push rod II are arranged on the side plates respectively.

Furthermore, the pedal, the chair seat frame, the chair seat connecting rod and the pedal connecting rod are connected through hinges.

Furthermore, the push rod is driven by a direct current linear motor, is decelerated by a gear set, and then converts rotary motion into translational motion through a ball screw.

Furthermore, the push rod II is driven by a direct current linear motor, is decelerated by a gear set, and then converts rotary motion into translational motion through a ball screw.

Furthermore, a storage battery used for supplying power for the push rod I and the push rod II is installed below the seat frame through a support.

The utility model discloses following beneficial effect has:

the multifunctional wheelchair has the advantages that the functions of standing and lying assisting are added on the basis of ensuring the functions of the traditional common wheelchair, the problem that the old needs others to assist in standing is solved, a rest place is provided for the old, and the life quality of the old is improved.

Drawings

Fig. 1 is a front view of an autonomous lying-assisting and standing-assisting wheelchair according to an embodiment of the present invention.

Fig. 2 is a side view of an autonomous lying-assisting and standing-assisting wheelchair according to an embodiment of the present invention.

Fig. 3 is a rear view of an autonomous lying-assisting and standing-assisting wheelchair according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a control circuit according to an embodiment of the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-3, an embodiment of the present invention provides an autonomous lying-assisting and standing-assisting wheelchair, which mainly comprises a standing assisting part, a lying assisting part and a driving part, wherein the standing assisting part comprises: the wheelchair can help the old to change from sitting posture to standing posture on the wheelchair, and the principle is that the push rod pushes the seat to turn upwards, and the connecting rod mechanism is utilized to ensure the movement of the backrest and the pedal. The lying assisting part: the old people are assisted to lie down slowly by sitting postures, and power is provided by the contraction of the push rod, so that the backrest does downward overturning motion. A driving part: the wheelchair is controlled to move forwards and backwards and other basic movements, the direct-current brushless speed-reducing linear motor provides power and provides driving force for a moving part, and specifically: the wheelchair comprises a wheelchair body, rear wheels 8 which are arranged on two sides of the rear part of the wheelchair body and drive the wheelchair to move forwards and backwards through a direct current brushless speed reduction linear motor, universal wheels 6 which are arranged on two sides of the front part of the wheelchair body and are used for steering, the rear wheels 8 are arranged on two ends of a transmission shaft 13 of the direct current brushless speed reduction linear motor through bearing seats 14, the wheelchair body comprises a backrest frame 11, a seat frame 17, a machine frame 12, a backrest 1, a seat 3 and a guard plate 4 which are sequentially hinged, the backrest frame 11, the seat frame 17 and the machine frame 12 are respectively arranged on the backrest frame 11, a push rod I9 is horizontally hinged on the inner side surface of the machine frame 12, the backrest frame 11 is hinged with a push rod extension rod 18 of a push rod I9 through a curved connecting rod 19, a push rod II15 used for driving the seat frame 17 to turn upwards is obliquely arranged on the inner side of the machine frame 12, the upper and lower ends of the push rod II15 are respectively hinged with the lower bottom surface of the seat frame 17 and the inner side surface of the machine frame 12, a limit guide rail 7 used for installing a pedal 5 is installed on the lower bottom surface of the seat frame 17 through a seat connecting rod 20, the pedal plate 5 is in butt joint with the limit guide rail 7 through the pedal connecting rod 21.

In this embodiment, a set of side plates 2 are symmetrically installed on both sides of the seat frame 17, and buttons for controlling the push rod I9 and the push rod II15 are installed on the side plates 2.

In this embodiment, the pedal plate 5, the seat frame 17, the seat connecting rod 20, and the pedal connecting rod 21 are all connected by hinges.

In this embodiment, the push rod I9 is driven by a dc motor, is decelerated by a gear set, and then converts a rotary motion into a translational motion by a ball screw.

In this embodiment, the push rod II15 is driven by a dc motor, is decelerated by a gear set, and then converts a rotary motion into a translational motion by a ball screw.

In this embodiment, a battery 16 for supplying power to the push rod I9 and the push rod II15 is mounted below the seat frame 17 through a bracket.

In the motion process of the station-assisting operation, the push rod I is kept still, the push rod II is pushed out, the seat is enabled to turn upwards, the backrest is enabled to be always erected through the characteristics of a parallelogram, specifically, when the station-assisting operation is carried out, a power supply is connected, the change-over switch is pushed to the station-assisting operation, the control switch is pushed to the forward rotation, the contacts 1 and 2 of the change-over switch are connected, the contacts inside the forward and reverse change-over switch are shown in figure 4, the push rod II is pushed out by a motor of the push rod II through a speed reducer through a ball screw, the seat 3 is driven to turn upwards, the pedal connecting rod 20 and the pedal connecting rod 21 can enable the pedal plate 5 to slowly move downwards under the constraint of the limiting guide rail 7, when the push rod II is completely pushed out, the seat is turned upwards by 90 degrees, the pedal plate 5 is close to the ground to the maximum extent, and the station-assisting operation is completed. In the same way, the wheelchair can be restored to the initial state by turning the control switch reversely.

Push rod II is motionless, push rod I contracts in the motion process of helping lying, parallelogram mechanism connecting rod length change, make the back do downward upset motion, specifically, when the wheelchair was located initial condition, dial change over switch to help lying, dial control switch to corotation, change over switch's 3 this moment, 4 contact switch-on, each contact in the corotation switch is as shown in figure 4, push rod I9's motor makes the push rod contract through ball behind the decelerator, make back frame 11 overturn backward through bent shape connecting rod 19, when the biggest angle of overturning backward of back 1 after the complete contraction is 90, accomplish and help lying the function. In the same way, the wheelchair can be recovered to the initial state by turning the control switch reversely.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An autonomous reclining assistance wheelchair, comprising a wheelchair body, a rear wheel (8) installed on both sides behind the wheelchair body to drive the wheelchair forward and backward through a DC brushless deceleration linear motor, and a wheelchair installed on both sides of the front of the wheelchair body. The universal wheel (6) for steering is characterized in that: the wheelchair body comprises a backrest frame (11), a seat frame (17), a frame (12) that are hinged in sequence, and a backrest frame (11), The seat frame (17), the backrest (1) on the frame (12), the seat (3) and the guard plate (4), a push rod I (9) is horizontally hinged on the inner side of the frame (12), the backrest frame (11) It is hinged with the push rod extension rod (18) of the push rod I (9) through the curved connecting rod (19), and an inner side of the frame (12) is also inclinedly installed to drive the seat frame (17) to turn upwards. The upper and lower ends of the push rod II (15) and the push rod II (15) are respectively hinged with the lower bottom surface of the seat frame (17) and the inner side surface of the frame (12), and the lower bottom surface of the seat frame (17) passes through the seat The connecting rod (20) is provided with a limit guide rail (7) for installing the foot pedal (5), and the foot pedal (5) is connected to the limit guide rail (7) through the pedal connecting rod (21).

2. An autonomous reclining aid station wheelchair according to claim 1, characterized in that: a set of side plates (2) are symmetrically installed on both sides of the seat frame (17), and the side plates (2) Buttons for controlling push rod I (9) and push rod II (15) are installed respectively.

3. An autonomous reclining aid station wheelchair according to claim 1, characterized in that: the footrest (5), the seat frame (17), the seat link (20), the pedal link (21) are connected by hinges.

4. a kind of autonomous lying aid station wheelchair as claimed in claim 1 is characterized in that: described push rod 1 is driven by DC linear motor, decelerates through gear set, and then converts rotary motion into swivel motion by ball screw. Pan motion.

5. An autonomous lying aid station wheelchair according to claim 1, wherein the push rod II is driven by a DC linear motor, decelerated by a gear set, and then converted into a rotary motion by a ball screw. Pan motion.

6. An autonomous reclining aid station wheelchair according to claim 1, characterized in that: a bracket is installed under the seat frame (17) through a bracket for a push rod I (9), a push rod II ( 15) A battery (16) powered by a DC brushless deceleration motor.