CN105640719A - Multifunctional wheelchair capable of assisting patient to get in or out of bed and go to toilet - Google Patents

Abstract

The invention aims to provide a multifunctional wheelchair capable of assisting a patient to get in or out of a bed and go to a toilet. The wheelchair mainly comprises a wheelchair body, a worm and gear lifting platform and a lateral movement mechanism. The wheelchair body consists of a wheelchair body base, a backrest, a leg supporting plate, wheels and a seat supporting plate, wherein a front and back wheel distance, a backrest angle and the leg supporting plate of the wheelchair can be synchronously adjusted. Two side armrest plates, a toilet device and a sliding rail are mounted on the lifting platform. The lateral movement mechanism consists of a first electric screw rod, a guide rail and a seat cushion sliding block. According to the wheelchair, the height of a seat can be adjusted to adapt to beds with different heights when the patient gets in or out of the bed, the patient can go to the toilet by the wheelchair, and the wheelchair can be folded into a chair or unfolded into a bed, so that the working burden of medical personnel and the physical burden of the patient are greatly reduced.

Description

A kind of multifunctional wheelchair that can assist in getting on and off the bed and going to the toilet

technical field

The invention relates to a wheelchair.

Background technique

As China enters an aging society, the burden on children or medical personnel to take care of patients or elderly people is getting heavier and heavier. With the gradual popularization of electric wheelchairs, the burden on caregivers has been reduced to a certain extent, but most of the existing wheelchairs do not have The device is convenient for getting on and off the wheelchair, and has a single function. In order to solve the patient's difficulty in getting on and off the bed, some wheelchairs that can assist the patient in getting on and off the bed have appeared.

The patent application number is 201310303797.8, and the patent title is "Electric Wheelchair That Can Assist Patients Getting in and Out of Bed". This wheelchair can facilitate getting in and out of bed, but it does not consider whether the height of the wheelchair is the same as the height of the bed, so the applicability is limited and the function is single. Therefore it is very necessary to design a kind of multifunctional wheelchair that can be convenient for getting on and off the bed.

Contents of the invention

The object of the present invention is to provide a kind of multifunctional wheelchair that can assist in getting on and off the bed, can go to the toilet, can be unfolded into a bed, and can be folded into a chair.

The purpose of the present invention is achieved like this:

The present invention is a kind of multifunctional wheelchair that can assist in getting on and off the bed and going to the toilet, and is characterized in that: it comprises a vehicle body base and a seat frame, the seat frame is installed above the vehicle body base through a seat frame support tube, and the seat frame The leg support is installed in the front, the backrest is installed in the rear of the seat frame, the first hydraulic push rod is installed in the front end of the car body base, the second hydraulic push rod is installed in the rear end of the car body base, and the protruding end of the first hydraulic push rod is connected to the The first universal wheel bracket, the first universal wheel is installed on the first universal wheel bracket, the extended end of the second hydraulic push rod is connected to the second universal wheel bracket, and the second universal wheel bracket is installed on the second universal wheel bracket The output end of the first hydraulic push rod is connected to the leg support plate through the first connecting rod, the output end of the second hydraulic push rod is connected to the backrest through the second connecting rod, the first drive motor is installed under the car body base, and the car body base The drive wheels are installed on both sides, the first drive motor is connected to the drive wheels, the second drive motor and the worm gear reducer are installed above the car body base, the worm gear reducer includes the second screw and the second turbine, and the second drive motor is connected to the second turbine , the second screw is connected with the worm lifting platform, the middle part of the seat frame is provided with a hole for the worm lifting platform to pass through, the left and right sides of the worm lifting platform are respectively connected with the first armrest board and the second armrest board, and the worm lifting platform The first screw rod is set on the top, and the nut is sleeved on the first screw rod, and the nut is connected with the cushion slider above it. The front and rear ends of the worm screw lifting platform are provided with guide rails, and the slides matching the two guide rails are respectively provided under the cushion slider. , A cylinder column cavity is set in the middle of the turbine worm lifting platform.

The present invention may also include:

1. The third universal wheel is installed under the cushion slider, the first armrest plate is installed at the end of the first armrest, and the second armrest plate is installed at the end of the second armrest. When one side of the cushion slider leaves the guide rail, the third universal wheel and The first armrest panels are in contact.

2. The front end of the car body base is installed with the first telescopic round tube, which is connected to the first universal wheel bracket, and the rear end of the car body base is installed with the second telescopic round tube, which is connected to the The second universal wheel bracket.

3. When the first hydraulic push rod is extended to the maximum stroke, the first universal wheel bracket drives the leg support through the first connecting rod to make the leg support flush with the seat frame, and the second hydraulic push rod is extended to the maximum During the stroke, the second universal wheel support drives the backrest through the second connecting rod to make the backrest flush with the seat frame.

The advantages of the present invention are:

1. The height of the seat is adjustable, which is convenient and suitable for beds of various heights.

The height of the wheelchair seat frame is slightly lower than that of existing sick beds. When approaching the sick bed, the height of the lifting platform can be adjusted, and the seat will move with the lifting platform. For different sick beds, it can be adjusted to different heights.

2. The patient can go to the toilet without leaving the wheelchair.

The wheelchair has a toilet function, which further reduces the burden on caregivers.

3. The wheelchair integrates the functions of the wheelchair and the bed, and is stable and safe.

When the angle between the backrest of the wheelchair and the plane on the seat frame becomes larger, the second universal wheel moves backward synchronously to support the center of gravity of the wheelchair moving backward. When the wheelchair is used as a bed, the supporting area of the wheelchair also reaches the maximum, and the wheelchair is stable and safe.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic diagram of part of the structure of the present invention;

Fig. 3 is a schematic diagram of the worm gear lifting platform;

Fig. 4 is a schematic diagram of the wheelchair body;

Fig. 5 is a schematic diagram of a seat cushion slider;

Fig. 6a is a schematic diagram of wheelchair state 1, Fig. 6b is a schematic diagram of wheelchair state 2, and Fig. 6c is a schematic diagram of wheelchair state 3;

detailed description

The present invention is described in more detail below in conjunction with accompanying drawing example:

1 to 6, the wheelchair body includes a body base 11, a backrest 2, a leg support 24, wheels and a seat frame 25, and two driving wheels 13 and two first driving motors 12 are installed on the body base 11. , two first telescopic round pipes 15, two second telescopic round pipes 7, the first hydraulic push rod 18, the second hydraulic push rod 6, four seat frame support pipes 10, the first universal wheel bracket 17 is installed on the first telescopic round pipe 15 and the first hydraulic push rod 18, and the second universal wheel bracket 8 is installed on the second telescopic round pipe 7 and the second hydraulic push rod 6; the first universal wheel 16 Installed on the first universal wheel bracket 17, the second universal wheel 9 is installed on the second universal wheel bracket 8, when the hydraulic push rod stretches, it can drive the telescopic tube to expand and contract, so that the universal wheel bracket can move accordingly The leg support 24 is hinged with the seat frame 25, and is hinged with the first connecting rod 19, and the first connecting rod 19 is hinged with the first universal wheel bracket 17; the backrest 2 is hinged with the seat frame 25, and is hinged with the second connecting rod The rod 4 is hinged, and the second connecting rod 4 is hinged with the second universal wheel bracket 8 . A square groove 33 is arranged on the seat frame 25, which can cooperate with the protruding block 32 on the lifting platform. Foot support 20 is installed on the leg support plate.

In conjunction with Fig. 1, Fig. 2, Fig. 3, the worm gear lifting platform includes a second drive motor 31, a worm gear reducer 14, and a second screw 26; handrail plates 28, 29, toilet devices and guide rails 21 are installed on the lifting platform, The first armrest board 28 is hinged with the lifting platform, and the lifting platform is not fixedly connected with the seat frame 25 . Lifting platform can drive patient to break away from seat frame 25 lifting.

With reference to Fig. 1, Fig. 2 and Fig. 5, the lateral movement mechanism includes a first electric screw rod 1, a guide rail 21, and a cushion slider 3. A nut 34 is sleeved on the screw rod 1, and the nut 34 is connected with the seat cushion slider 3, and the seat cushion slider 3 can be driven to move laterally when the first electric screw rod 1 rotates.

2 and 6, the first connecting rod 19 plays the role of supporting the leg support 24, and the second connecting rod 4 plays the role of supporting the backrest 2. When adjusting the posture of the wheelchair, the rear universal wheel follows Move to prevent the wheelchair from tipping due to changes in its center of gravity. When the second hydraulic push rod 6 was extended to the maximum stroke, the second universal wheel bracket 8 also drove the backrest through the second connecting rod 4 to reach the limit position, and now the backrest 2 was flush with the seat frame 25 . When the first hydraulic push rod 18 was extended to the maximum stroke, the first universal wheel support 17 also drove the leg support plate 24 to reach the limit position through the first connecting rod 19. At this time, the leg support plate 24 and the seat frame 25 flush to become a bed. Similarly, when the second hydraulic push rod 6 shrinks to the shortest, the backrest 2 is nearly vertical to the seat frame 25 at this time. When the first hydraulic push rod 18 shrinks to the shortest, the leg support 24 is nearly vertical to the seat frame 25, and becomes a wheelchair.

With reference to Fig. 1, Fig. 2 and Fig. 3, the toilet device includes a barrel-shaped cavity 30 installed on the lifting platform, seat cushion core pulling, and the barrel-shaped cavity 30 is fixedly connected with the lifting platform. When going to the toilet, The seat cushion core pulling 23 is extracted, the seat cushion slider 3 is moved sideways, then the toilet is put into the barrel-shaped cavity 30, and the seat cushion slider 3 is moved to the original place.

With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, a small universal wheel 35 is installed on the seat cushion slider 3 to play the role of supporting the seat cushion slider 3, when one side of the seat cushion slider 3 When leaving the guide rail 21, the universal wheel contacts with the first armrest board 28 to play the role of supporting the cushion slider 3.

The first handrail 5 is installed on the first handrail 28, and the first handrail 28 is put down when getting on and off the bed, and the first handrail 5 contacts the bed surface as a support.

Various actions of the wheelchair are completed by the operator manipulating the control module 22 .

A multifunctional wheelchair that can assist getting in and out of bed and going to the toilet according to the present invention comprises a wheelchair body, and the wheelchair body includes a body base, a backrest, a leg support, wheels and a seat frame. Installed with two driving wheels, two first driving motors, two first telescopic round pipes, two second telescopic round pipes, a first hydraulic push rod, a second hydraulic push rod, and four seat frame supports The first universal wheel bracket is installed on the first telescopic round tube and the first hydraulic push rod, and the second universal wheel bracket is installed on the second telescopic round tube and the second hydraulic push rod; the universal wheel is installed On the universal wheel bracket, the hydraulic push rod can drive the telescopic tube to expand and contract, so that the universal wheel bracket can move accordingly; the leg support is hinged to the seat frame, and is hinged to the first connecting rod. The rod is hinged to the first universal wheel bracket; the backrest is hinged to the seat frame and to the second connecting rod, and the second connecting rod is hinged to the second universal wheel bracket.

Described wheelchair also comprises worm gear lifting platform, and described worm gear lifting platform comprises the second drive motor, worm gear reducer, the second screw rod; Armrest plate, toilet device and guide rail are installed on the lifting platform, the first armrest plate and The lifting platform is hinged, and the lifting platform is not fixedly connected with the seat frame.

The wheelchair also includes a side shifting mechanism, the side shifting mechanism includes a first electric screw rod, a guide rail, and a seat cushion slider, the seat cushion slider can slide on the lifting platform through the guide rail, the first electric screw rod is covered with a nut, and the nut It is connected with the seat cushion slider, and when the first electric screw rod rotates, it can drive the seat cushion slider to move laterally.

Described first connecting rod 19 plays the effect of supporting leg support plate, and the second connecting rod plays the effect of supporting backrest, and when adjusting wheelchair posture, front and rear universal wheels move back and forth thereupon, prevents wheelchair center of gravity from changing and overturning. When the second hydraulic push rod was stretched to the maximum stroke, the second universal wheel bracket also drove the backrest through the second connecting rod to reach the limit position, and now the backrest was flush with the seat frame. When the first hydraulic push rod is extended to the maximum stroke, the first universal wheel bracket also drives the leg support plate to the limit position through the first connecting rod. At this time, the leg support plate is flush with the seat frame and becomes bed. Similarly, when the second hydraulic push rod shrinks to the shortest, the backrest is nearly vertical to the seat frame. When the first hydraulic push rod shrinks to the shortest, the leg support plate is nearly vertical to the seat frame, and becomes a wheelchair.

The toilet device includes a barrel-shaped cavity installed on the lifting platform, and is fixedly connected with the lifting platform, and also includes a seat cushion core puller. When going to the toilet, the seat cushion core is pulled out, the seat cushion slider is moved sideways, then the toilet is placed in the barrel-shaped cavity, and then the seat cushion slider is moved to the original place.

A small universal wheel is installed on the seat cushion slider to support the seat cushion slider. When one side of the seat cushion slider leaves the guide rail, the universal wheel contacts the first armrest board to support the seat cushion slider. The function of the cushion slider.

The present invention provides a kind of multifunctional wheelchair that can assist in getting on and off the bed and going to the toilet. Two drive wheels 13, two first drive motors 12, two first telescopic round pipes 15, two second telescopic round pipes 7, the first hydraulic push rod 18, the second hydraulic push rod 6, Four seat frame support pipes 10, the first universal wheel bracket 17 is installed on the first telescopic round pipe 15 and the first hydraulic push rod 18, and the second universal wheel bracket 8 is installed on the second telescopic round pipe 7 and on the second hydraulic push rod 6; the universal wheel is installed on the universal wheel bracket, and the telescopic tube can be driven to expand and contract when the hydraulic push rod stretches, so that the universal wheel bracket can move thereupon; the leg support plate 24 is connected with the seat The frame 25 is hinged, and is hinged with the first connecting rod 19, and the first connecting rod 19 is hinged with the first universal wheel bracket 17; the backrest 2 is hinged with the seat frame 25, and is hinged with the second connecting rod 4, and the second connecting rod 4 is hinged with the second universal wheel bracket 8.

The first connecting rod 19 plays the role of supporting the leg support plate 24, and the second connecting rod 4 plays the role of supporting the backrest 2. When adjusting the posture of the wheelchair, the first and second universal wheels move forward and backward accordingly to prevent the center of gravity of the wheelchair from changing. And overturned.

Worm gear lifting platform 27 comprises the second drive motor 31, worm gear reducer 14, the second screw rod 26; Armrest plate, toilet device and guide rail 21 are installed on the lifting platform, the first armrest plate 28 is hinged with lifting platform 27, lifts Platform and seat frame 25 are not fixedly connected.

The toilet device includes a barrel-shaped cavity installed on the lifting platform, and is fixedly connected with the lifting platform, and also includes a seat cushion core puller 23 .

The side shifting mechanism includes a first electric screw rod 1, a guide rail 21, and a seat cushion slider 3. The seat cushion slider can slide on the lifting platform through the guide rail. The first electric screw rod is covered with a nut, and the nut is connected to the seat cushion slider 3. When the first electric screw rod rotates, it can drive the seat cushion slider to move laterally.

A small universal wheel is installed on the seat cushion slider, which plays the role of supporting the seat cushion slider. When one side of the seat cushion slider leaves the guide rail, the universal wheel contacts with the first handrail plate 28 to act as a support seat. The function of pad slider.

Claims (5)

1. can assist the multifunctional wheelchair that bunk bed can go to toilet for one kind, it is characterized in that: include car body base, seat frame, seat frame props up stay tube by seat frame and is arranged on the top of car body base, the front installation leg supporting plate of seat frame, backrest is installed at the rear of seat frame, the first hydraulic push rod is installed in the front end of car body base, the second hydraulic push rod is installed in the rear end of car body base, the projecting end of the first hydraulic push rod connects the first caster bracket, first caster bracket is installed the first universal wheel, the external part of the second hydraulic push rod connects the second caster bracket, second caster bracket is installed the second universal wheel, the outfan of the first hydraulic push rod passes through first connecting rod connection leg supporting plate, the outfan of the second hydraulic push rod connects backrest by second connecting rod, car body base the first drive motor mounted below, the both sides of car body base are installed and are driven wheel, first drive motor connects driving wheel, car body base the second drive motor installed above and worm type of reduction gearing, worm type of reduction gearing includes the second screw rod and the second turbine, second drive motor connects the second turbine, second screw rod is connected with turbine and worm hoistable platform, hole for turbine and worm hoistable platform traverse is set in the middle part of seat frame, the left and right sides of turbine and worm hoistable platform connects the first balustrade panel and the second balustrade panel respectively, turbine and worm hoistable platform arranges the first screw rod, first screw rod is cased with nut, nut is connected with the medicated cushion slide block above it, the rear and front end of turbine and worm hoistable platform is respectively provided with guide rail, medicated cushion slide block is respectively arranged below the chute matched with two guide rails, cylindrical column cavity is set in the middle part of turbine and worm hoistable platform.

2. a kind of multifunctional wheelchair assisting bunk bed to go to toilet according to claim 1, it is characterized in that: medicated cushion slide block the 3rd universal wheel mounted below, first armrest end part installs the first balustrade panel, second armrest end part installs the second balustrade panel, when guide rail is left in medicated cushion slide block side, the 3rd universal wheel and the first balustrade panel contact.

3. a kind of multifunctional wheelchair assisting bunk bed to go to toilet according to claim 1 and 2, it is characterized in that: the first scalable pipe is installed in the front end of car body base, first scalable pipe connects the first caster bracket, the second scalable pipe is installed in the rear end of car body base, and the second scalable pipe connects the second caster bracket.

4. a kind of multifunctional wheelchair assisting bunk bed to go to toilet according to claim 1 and 2, it is characterized in that: when the first hydraulic push rod is elongated to range, first caster bracket makes leg support plate flush with seat frame by the related dynamic leg support plate of first connecting rod, when second hydraulic push rod is elongated to range, the second caster bracket drives backrest to make backrest flush with seat frame by second connecting rod.

5. a kind of multifunctional wheelchair assisting bunk bed to go to toilet according to claim 3, it is characterized in that: when the first hydraulic push rod is elongated to range, first caster bracket makes leg support plate flush with seat frame by the related dynamic leg support plate of first connecting rod, when second hydraulic push rod is elongated to range, the second caster bracket drives backrest to make backrest flush with seat frame by second connecting rod.