CN102697608A - Swing rocking type multifunctional wheel chair - Google Patents

Abstract

The invention discloses a rocking and lifting multifunctional wheelchair. A device that can expand the wheelchair into a rocking chair is fixed under the wheelchair seat; the device includes a spiral lifting mechanism and a hyperbolic rocking rod; The seat is connected; the hyperbolic rocking rod is arranged on both sides of the lower end of the spiral lifting mechanism, and is fixedly connected with the spiral lifting mechanism. The wheelchair of the invention can effectively realize the functions of a rocking chair and a reclining chair, is convenient to use, has a simple structure, is safe and reliable, and is low in cost, allowing users to feel comfortable and at ease.

Description

A kind of rocking and lifting multifunctional wheelchair

technical field

The patent of the invention is a swing-lift multifunctional wheelchair, which is a multifunctional wheelchair with functional integration on the basis of ordinary wheelchairs, which makes life more convenient for wheelchair users.

Background technique

The wheelchair is an important tool to improve the quality of life of the lower limb disabled, hemiplegic, paraplegic below the chest, and the elderly with limited mobility.

As a country with a large population, China's aging situation is even more severe. According to statistics from the United Nations, by 2050, China's elderly population over the age of 80 will reach 100 million, accounting for one-fifth of the world's population. Chronic non-communicable diseases, such as heart disease, stroke, cancer, diabetes, etc., are a major threat to older people. Statistics show that in the next 20 years, the size of China's elderly population will double compared to the current one. How to deal with aging and enable the elderly to live healthier and more quality lives is an important issue. With the increase of elderly patients, the total social demand for wheelchairs is increasing year by year, which brings huge market space for the wheelchair industry.

Now my country's elderly population over the age of 60 is increasing at a rate of 3% every year. Among the elderly population over 60 years old, a considerable number of elderly people need to use wheelchairs in their daily life and work, and in the process of disease treatment and rehabilitation. According to the data of the Second National Sample Survey on Disabled Persons, the total number of disabled persons in the country is 82.96 million. Among them, there are 24.12 million people with physical disabilities, accounting for 29.07%; 13.52 million people with multiple disabilities, accounting for 16.30%. Among the groups with physical disabilities and multiple disabilities, a considerable part of them also need to use wheelchairs in their life, work, treatment of diseases and rehabilitation training. How to make these wheelchair users live a better, healthier and more quality life is an important issue.

Contents of the invention

The object of the present invention is to solve the defects in the prior art, and provide a wheelchair that can make ordinary wheelchairs have multiple functions such as rocking chairs and reclining chairs under the premise that the original functions remain unchanged.

In order to achieve the above object, the present invention provides a swing lift type multifunctional wheelchair, a device that can expand the wheelchair into a rocking chair is fixed under the wheelchair seat; the device includes a spiral lifting mechanism and a hyperbolic rocking rod; the spiral lifting mechanism The upper end of the upper end is connected with the wheelchair seat; the hyperbolic rocking rod is arranged on both sides of the lower end of the spiral lifting mechanism, and is fixedly connected with the spiral lifting mechanism.

The further improvement of the present invention is that: the spiral lifting mechanism includes a lifting bracket, a motor power supply, a motor, a coupling, and a threaded screw; the electric power supply is connected to the motor; the output shaft of the motor is connected to the threaded screw through a coupling; the lifting bracket It is connected with the threaded screw, and is lifted by the rotation of the threaded screw; the screw lifting mechanism is respectively connected with the wheelchair and the hyperbolic rocker through the lifting bracket.

The above-mentioned screw lifting mechanism also includes a gear transmission system, the gear transmission system includes a large gear and a small gear, the large gear is provided with a hand handle; the large gear is meshed with the small gear; the threaded screw is connected with the small gear. The large gear is connected with the coupling through the transmission shaft; the threaded screw is connected with the output shaft of the motor through the small gear, the large gear, the transmission shaft and the coupling in sequence. The lifting bracket includes two left and right lifting structures, a front support frame and a bearing support frame; the lifting structure is a rhombus structure; there are two threaded screw rods, and the two ends of each threaded screw rod are respectively connected with the front and rear fulcrums of the corresponding lifting structure; the motor The power supply is connected to the front support frame; there are two pinion gears, which are respectively arranged on both sides of the large gear; one end of the two threaded screw rods passes through the bearing support frame and is respectively connected with the corresponding pinion gear, and the other end is provided with threads, and is connected to the front support frame. frame connected.

The spiral lifting structure includes a lifting bracket, a threaded screw, a large gear and a pinion; the lifting bracket includes two left and right lifting structures, a front support frame and a bearing support frame; the lifting structure is a rhombus structure; The two ends of the screw rod are respectively connected with the front and rear fulcrums of the corresponding lifting structure; the large gear is connected with the bearing support frame in rotation; the large gear is provided with a hand handle; The large gears are meshed; one end of the threaded screw rod passes through the bearing support frame and is respectively connected with the corresponding pinion gear, and the other end is provided with threads and is connected with the front support frame. A foldable mechanism is provided on the hyperbolic rocker.

The wheelchair seat includes a base, a backrest, and side rods located on both sides of the base and connected to the backrest; the backrest is connected to the base in rotation; the side rods include telescopic rods and vertical rods; the telescopic rods are vertically connected to the vertical rods; The backrests are connected vertically to the base by a vertical rod.

The wheelchair is provided with a lifting control switch, and the lifting control switch is connected with the motor power supply. At the same time, voice music devices and lighting lamps are respectively provided on the wheelchair.

Compared with the prior art, the present invention has the following advantages:

The swing function of the wheelchair is realized by using the hyperbolic rocking rod, and the rocking rod is folded by a foldable mechanism. When not in use, the hyperbolic rocking rod can be folded and put away, so that the wheelchair can be pushed more freely, safely and unrestricted.

Use the spiral lifting mechanism to realize the lifting function of the wheelchair, which expands the reachable height for the user; at the same time, using two lifting structures, on the one hand, it ensures the balance and stability between the wheelchair and the hyperbolic rocker, and on the other hand, it is easy to lift and saves labor. , fast; there is also a motor to realize the spiral lift, so that the wheelchair user only needs to press the motor switch to control the rise, fall and stop of the wheelchair. The gear transmission system is used in manual operation, which can not only improve the efficiency, but also reduce the torque of the motor, which is more labor-saving.

The wheelchair of the present invention realizes the rotation of the backrest through the telescopic rod, so that the wheelchair can be converted into a reclining chair at any time; the lighting lamp is used to facilitate night travel, and the voice music device is used for voice reminder and music playback, thereby increasing the entertainment function.

On the basis of the existing ordinary wheelchair, the present invention proposes a multi-functional integration scheme for adding automatic free lifting, easy swing for leisure, sitting, standing and lying flat conversion, contour lighting, and voice reminder. The swinging leisure function of the design can make the user relaxed and leisure; the free lifting function can improve the user's touch or control height; the outline lighting can play a warning role when traveling at night to ensure safety; the voice reminder function can make speech difficult or obstructed When traveling in a wheelchair, remind the surrounding pedestrians to pay attention to avoiding the multi-functional wheelchair.

The invention solves the shortcoming of single function of common wheelchairs in the existing market, and has very strong practicability and operability. The device of the invention is convenient to use, simple in structure, safe and reliable, and low in cost, allowing users to feel comfortable and at ease. Today, with an aging population and an emphasis on the rights and interests of the disabled, this universal device has a broad development space and market, and it is also a way to improve the health of the disabled, especially those with physical disabilities and multiple disabilities, and patients with chronic non-communicable diseases over 60 years old. An important life essential tool to improve the quality of life for seniors over the age of 80.

Description of drawings

Fig. 1 is the structural representation of wheelchair of the present invention;

Fig. 2 is a side view of the wheelchair in Fig. 1;

Fig. 3 is a structural schematic diagram of a device that can expand the wheelchair into a rocking chair in Fig. 1;

Fig. 4 is a structural schematic diagram of the lifting structure in Fig. 3 when it is in a descending state;

Fig. 5 is a structural schematic diagram of the lifting structure in Fig. 3 when it is in a rising state.

In the figure, 1-wheelchair, 2-the device that can expand the wheelchair into a rocking chair, 3-hyperbolic rocker, 4-helical lifting mechanism, 5-lifting bracket, 6-motor power supply, 7-motor, 8-coupling , 9-thread screw, 10-big gear, 11-pinion, 12-hand handle, 13-lifting structure, 14-front support frame, 15-bearing support frame, 16-foldable mechanism, 17-backrest, 18-side rod, 19-base, 20-vertical rod, 21-telescopic rod, 22-gear transmission system, 23-lifting control switch, 24-voice music device, 25-lighting lamp, 26-transmission shaft.

Detailed ways

The wheelchair of the present invention will be described in detail below in conjunction with the accompanying drawings.

1 and 2, the wheelchair 1 of the present invention is provided with a device 2, which can be fixed under the seat of the wheelchair 1 by bolts and nuts. Referring to FIG. 3 , the device 2 that can expand the wheelchair into a rocking chair includes a spiral lifting mechanism 4 and a hyperbolic rocking rod 3 . The upper end of the spiral lifting mechanism 4 is connected with the seat of the wheelchair 1, and the lower end is fixedly connected with the hyperbolic rocker 3. The hyperbolic rocking rod 3 is arranged on the left and right sides of the spiral lifting mechanism 4 . A foldable mechanism 16 is provided on the hyperbolic swing bar 3, and the foldable mechanism 16 is a hinge. The hyperbolic swing bar 3 includes a plurality of arc bars, and the arc bars are connected by a foldable mechanism 16 .

The screw lifting mechanism 4 includes a lifting bracket 5, a motor power supply 6, a motor 7, a shaft coupling 8, a threaded screw mandrel 9, and a gear transmission system 22. The gear train 22 includes a bull gear 10 and a pinion 11 . Lifting support 5 comprises left and right two lifting structures 13, front support frame 14 and bearing support frame 15. Referring to Fig. 4 and Fig. 5, the lifting structure 13 is a rhombus structure, and the rhombus angle can be changed by turning each fulcrum of the rhombus structure. There are two threaded screw rods 9, and the two ends are respectively connected with the front and rear fulcrums of the corresponding lifting structure 13. The motor power supply 6 is fixedly installed on the front support frame 14 and is connected with the motor 7 . The motor 7 is connected to one end of the transmission shaft 26 through a shaft coupling 8 , and the other end of the transmission shaft 26 is connected to the bull gear 10 through a bearing support frame 15 . The bull gear 10 is provided with a crank handle 12, and there are two pinion gears 11, which are located on both sides of the bull gear 10 and mesh with the bull gear 10. One end of the threaded screw 9 corresponding to each lifting structure 13 passes through the bearing support frame 15 and is respectively connected with the corresponding pinion 11 , and the other end is provided with threads and is connected with the front support frame 14 .

The wheelchair is provided with a lifting control switch 23, and the lifting control switch 23 is connected with the motor power supply 6. During use, press the lifting control switch 23 to turn on the motor power supply 6, and the forward rotation and reverse rotation of the motor 7 drive the shaft coupling 8 and the transmission shaft 26 to rotate in sequence. The transmission shaft 26 rotates to drive the large gear 10 to rotate; or the hand crank handle 12 is manually rotated to drive the large gear 10 to rotate. The rotation of the large gear 10 drives the rotation of the two small gears 11 (the gear modules of the large and small gears are the same), and the speed of the small gear 11 is several times that of the large gear 10, and the specific value is related to the gear ratio of the large and small gears. The rotation of the pinion 11 drives the rotation of the threaded screw 9, thereby realizing the lifting, lowering and stopping of the lifting mechanism, so that the ordinary wheelchair has an automatic lifting function.

During the lifting process, the threaded screw mandrel 9 and the drive shaft 26 keep the same height difference all the time, and rise and fall together at the same speed. Referring to Fig. 4 and Fig. 5, there are two connection points between the threaded screw mandrel 9 and the diamond-shaped structure of the lifting structure 13. A connection point at the left end (the end where the threaded screw rod 9 is connected to the front support frame 14) is equivalent to a nut, which is connected by the external thread on the threaded screw rod 9 and the internal thread at the connection point (i.e. the fulcrum of the lifting structure 13). When the rotation of the gear 11 drives the threaded screw 9 to rotate, the connection point of this end will move left and right accordingly, and realize the angle change of the rhombus structure, thereby realizing lifting. A connecting point at the right end is the rotational connection between the threaded screw mandrel 9 and the lifting structure 13. This connection can make the threaded screw mandrel 9 rotate freely while ensuring that the position of the connecting point in the length direction of the threaded screw mandrel 9 remains unchanged. When threaded screw mandrel 9 rotates, left end connection point can move left and right, and the connection point of right end keeps original connection position, but threaded screw mandrel 9 can rotate freely. By changing the rhombic angle of the lifting structure 13 through the rotation of the threaded screw 9, the lifting motion control can be realized.

When the hyperbolic rocking bar 3 connected to the lower end of the lifting structure 13 drops below the four wheels of the ordinary wheelchair, the wheelchair is converted into a rocking chair, which can realize the leisure rocking function of the rocking chair, so that the wheelchair user can fully relax and relax, and is more comfortable. Good for physical and mental health. When directly used as a wheelchair, the hyperbolic rocker 3 rises and is folded and stowed by the foldable mechanism 16, which can make the wheelchair user more free, safe and unrestricted.

The wheelchair seat of the present invention includes a backrest 17 , a base 19 and side bars 18 . The backrest 17 is rotatably connected with the base 19 . The side rod 18 includes a telescopic rod 21 connected to the backrest 17 and parallel to the base 19, and a vertical rod 20 vertically connected to the base 19 and the telescopic rod 21 respectively. By controlling the telescopic length of the telescopic rod 21, the lying angle of the wheelchair backrest 17 can be adjusted, and the wheelchair user can lie flat to a maximum angle of about 150°.

The wheelchair is provided with an illuminating lamp 25, and when the wheelchair is used at night, the outline illuminating lamp 25 can be turned on, so that other pedestrians and vehicles can see the wheelchair and the wheelchair user very conspicuously, which can ensure the personal safety of the wheelchair user and ensure the safety of the wheelchair user. It is convenient for wheelchair users and plays a lighting role. The wheelchair is provided with a voice music device 24, which can input voice prompts according to the needs of the user. When needed, the button can be pressed to facilitate playback. Simultaneously, the voice music device 24 also has the functions of playing music and playing the radio, adding The entertainment function enables wheelchair users to fully relax and relax physically and mentally, which is more conducive to physical and mental health.

Claims (10)

1. A swing-lifting multifunctional wheelchair is characterized in that: a device that can expand the wheelchair into a rocking chair is fixed below the seat of the wheelchair; the device includes a spiral lifting mechanism and a hyperbolic rocking rod; the spiral lifting The upper end of the mechanism is connected with the wheelchair seat; the hyperbolic rocking rod is arranged on both sides of the lower end of the spiral lifting mechanism, and is fixedly connected with the spiral lifting mechanism. 2. The wheelchair according to claim 1, characterized in that: the spiral lifting mechanism includes a lifting bracket, a motor power supply, a motor, a shaft coupling, and a threaded screw; the electric power supply is connected to the motor; the output of the motor The shaft is connected with the threaded screw rod through a coupling; the lifting bracket is connected with the screw screw rod for transmission, and is lifted by the rotation of the screw screw rod; the spiral lifting mechanism is connected with the wheelchair and the screw rod through the lifting bracket respectively The hyperbolic rocker bar is connected. 3. The wheelchair according to claim 2, characterized in that: the spiral lifting mechanism also includes a gear transmission system; the gear transmission system includes a large gear and a pinion; the large gear is provided with a hand handle; the The large gear is meshed with the small gear; the threaded screw is connected with the pinion; the large gear is connected with the coupling through a transmission shaft; the threaded screw is sequentially passed through the small gear, the large gear , the drive shaft and the coupling are connected with the output shaft of the electric motor. 4. The wheelchair according to claim 3, characterized in that: the lifting bracket includes two left and right lifting structures, a front support frame and a bearing support frame; the lifting structure is a diamond structure; the threaded screw rod is two , the two ends of each threaded screw rod are respectively connected with the front and rear fulcrums of the corresponding lifting structure; the motor power supply is connected with the front support frame; there are two small gears, which are respectively arranged on both sides of the large gear; One end of the threaded screw passes through the bearing supporting frame and is respectively connected with the corresponding pinion, and the other end is provided with threads and connected with the front supporting frame. 5. The wheelchair according to claim 1, characterized in that: the spiral lifting structure includes a lifting bracket, a threaded screw, a large gear and a pinion; the lifting bracket includes two left and right lifting structures, a front support frame and a bearing Support frame; the lifting structure is a rhombus structure; there are two threaded screw rods, and the two ends of each threaded screw rod are respectively connected to the front and rear fulcrums of the corresponding lifting structure; the large gear is connected to the bearing support frame in rotation; The large gear is provided with a hand handle; the small gears are two, respectively located on both sides of the large gear, and meshed with the large gear; one end of the threaded screw passes through the bearing support frame and respectively The pinion is connected, and the other end is provided with threads, and is connected with the front support frame. 6. The wheelchair according to claim 1, characterized in that: the hyperbolic rocker is provided with a foldable mechanism. 7. The wheelchair according to any one of claims 1 to 6, wherein the wheelchair seat comprises a base, a backrest, and side bars arranged on both sides of the base and connected to the backrest; it is characterized in that: the backrest is connected to the base in rotation; The side rod includes a telescopic rod and a vertical rod; the telescopic rod is vertically connected with the vertical rod; the side rod is connected with the backrest through the telescopic rod, and vertically connected with the base through the vertical rod. 8. The wheelchair according to claim 7, characterized in that: the wheelchair is provided with a lift control switch; the lift control switch is connected to the motor power supply. 9. The wheelchair according to claim 7, characterized in that: said wheelchair is provided with a voice music device. 10. The wheelchair according to claim 7, characterized in that: said wheelchair is provided with a lighting lamp.

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