WO2021072756A1

WO2021072756A1 - Wheelchair bed combination method and separation method

Info

Publication number: WO2021072756A1
Application number: PCT/CN2019/111992
Authority: WO
Inventors: 杨國强; 李舟健; 冯亚磊; 何代杰; 封锦华; 何辉; 尹籽深; 李东坡; 王海; 黎昊灵; 陈建帆; 高雷; 刘进
Original assignee: 广东博智林智能技术有限公司
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2021-04-22
Also published as: CN111182874A; CN111182874B

Abstract

Provided are a wheelchair bed (001) combination method and separation method, the wheelchair bed (001) comprising a bed body (200) and a wheelchair (100); the bed body (200) comprises a bed main body (210), the bed main body (210) having an accommodating cavity (210a) and an access opening (210b); the wheelchair (100) comprises a chassis (80), a seat (10), a wheelchair seat back (40), and a lower leg panel (50), the wheelchair (100) having a chair shape, a bed shape, and an access shape; the process of combining the wheelchair (100) and the bed (200) comprises: an into-bed preparation stage, an into-bed movement stage, and a combination stage; in the into-bed preparation stage, raising the seat (10), the wheelchair seat back (40) rotating downward, and the lower leg panel (50) rotating upward; in the into-bed movement stage, the wheelchair (100) moving from the access opening (210b) into the accommodating cavity (210a); in the combination phase, lowering the seat (10), and the seat (10), the wheelchair seat back (40), and the lower leg panel (50) engaging with the bed body (200).

Description

Combination method and separation method of wheelchair bed

Technical field

The invention relates to the technical field of nursing equipment, in particular to a method for combining and separating a wheelchair bed.

Background technique

At present, there are nursing beds with liftable leg components and back components, and wheelchairs with liftable leg components and back components on the market. However, neither the above-mentioned nursing bed nor the wheelchair can facilitate the flexible transfer between the wheelchair and the bed by the patient. The patient needs to operate by himself or the nursing staff when entering the bed. The workload is large and the labor intensity is high. It is easy for the patient to move. The occurrence of injury is not conducive to the patient's daily treatment. Therefore, how to realize the combination of the bed and the wheelchair and fast docking or separation is particularly important.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, the present invention proposes a method for combining a wheelchair bed to realize the rapid docking of the bed body and the wheelchair, and facilitate the flexible transfer of the patient between the wheelchair and the bed.

The present invention also aims to provide a method for separating a wheelchair bed, so as to apply the above-mentioned combination method of the wheelchair bed.

According to a method for combining a wheelchair bed according to an embodiment of the present invention, the wheelchair bed includes a bed body and a wheelchair that can be combined and separated;

The bed body includes a bed body, the bed body has an accommodating cavity, and the horizontal side of the accommodating cavity has an inlet and outlet;

The wheelchair includes a chassis, a seat, a wheelchair back and a lower leg plate, the seat is connected to the chassis in a liftable manner, the wheelchair back and the lower leg plate each have a first end and a second end, so The first end of the backrest of the wheelchair and the first end of the lower leg plate are rotatably connected to opposite sides of the seat. The wheelchair has a chair-shaped form, a bed-shaped form, and an in-out form. In the in-out form, the chair The seat, the wheelchair backrest and the lower leg plate are all higher than the bed body;

The process of combining the wheelchair with the bed body includes: a bed preparation phase, a moving bed phase, and a combination phase;

During the bed preparation stage, the seat is raised, the second end of the wheelchair backrest is rotated downward, and the second end of the lower leg plate is rotated upward, so that the wheelchair is adjusted from the chair-shaped form to the in-out form;

In the stage of moving into the bed, the wheelchair in the in and out form is moved into the containing cavity from the entrance and exit;

In the joining phase, the chair seat is lowered, and the chair seat, the wheelchair backrest and the lower leg plate are joined to the bed body, so that the wheelchair is adjusted from the in and out form to the bed-shaped form.

According to the method for combining a wheelchair with a bed according to an embodiment of the present invention, the wheelchair has three positions: chair-shaped, bed-shaped, and in-and-out, so that during the process of combining the wheelchair with the bed, the patient enters the bed more stably and enters the bed more smoothly. The comfort and safety of the bed are greatly improved, and injuries can be effectively avoided.

In some embodiments, in the in and out configuration, the second end of the wheelchair backrest and the second end of the lower leg plate are both higher than the seat; in the joining phase, the second end of the wheelchair backrest rotates downward, The second end of the lower leg plate is rotated downward so that the wheelchair backrest and the lower leg plate are engaged with the bed body.

In some embodiments, the wheelchair includes two armrests and an armrest lifting device, the two armrests are located on opposite sides of the seat, and the armrest lifting device connects the seat and the armrests on both sides In order to control the turning of the armrests on both sides; in the preparation stage for entering the bed and moving into the bed, the armrests remain stationary; in the joining phase, the two armrests rotate toward the horizontal state to engage with the bed body .

In some embodiments, the wheelchair includes: a footrest, the footrest has a first end and a second end, the first end of the footrest is rotatably connected to the second end of the lower leg plate , When the chair-shaped form is turned into the in-out form, the second end of the foot pedal rotates in a downward direction.

Optionally, in the chair-shaped configuration, through the lifting of the seat and the rotation of the lower leg plate, the bottom surface of the footrest can be adjusted to be flush with the contact point of the chassis.

In some embodiments, the chassis is driven by driving wheels and steering wheels that touch the ground, and the chassis is also provided with a driving motor located outside the driving wheel, and the driving motor is a brushless motor connected to the driving wheel. Motor.

In some embodiments, the chair seat is provided with an assembly opening, the wheelchair further includes an upper leg plate rotatably fitted at the assembly opening, and the upper leg plate can be rotated to a part of the chair seat. Above.

In some embodiments, guide rails are provided on opposite sides of the accommodating cavity, and guide wheels are provided on opposite sides of the wheelchair. The guide wheels are fitted on the guide rails during the moving into bed stage, so that the The wheelchair is guided into the accommodating cavity.

In some embodiments, the guide rails on both sides are formed in arcs extending away from each other in the portions adjacent to the inlet and outlet.

In some embodiments, the bed body includes a bed body back, the bed body back is connected to the bed body in an angle adjustable manner, and the bed body back is located on a side of the bed body away from the inlet and outlet. Side; In the combined phase, the wheelchair backrest is engaged with the bed backrest so that the wheelchair backrest and the bed backrest can be adjusted synchronously.

Optionally, a matching part is provided on the backrest of the bed body, and a movable locking member is provided on the backrest of the wheelchair, and the locking member is connected with the armrest lifting device to move synchronously with the armrest. When the armrest is in a horizontal state, the locking member is matched with the mating part, and when the armrest is in a vertical state, the locking member is separated from the mating part.

Optionally, the locking member is telescopically arranged on the backrest of the wheelchair, and the locking member is connected to the armrest lifting device through a wire rope, and when the armrest lifting device drives the armrest to be horizontal, the wire rope pulls the The locking member extends; the wheelchair backrest is also provided with a lock back spring, and when the wire rope is loosened, the lock member is reset by the lock back spring.

In some embodiments, the wheelchair further includes a lower leg plate driving member and a footrest linkage member, the lower leg plate driving member is connected between the lower leg plate and the seat to drive the lower leg plate to rotate, The foot pedal linkage members are respectively connected with the lower leg plate and the seat, so as to drive the foot pedal to be linked when the lower leg plate rotates.

In some embodiments, after the wheelchair is combined with the bed, the bottom of the wheelchair is flush with the bottom of the chassis, or the bottom of the wheelchair is supported on the bottom of the chassis.

In some embodiments, the wheelchair is provided with an anti-pinch sensor where it is combined with the bed.

In some embodiments, the wheelchair is provided with a navigation device, the navigation device includes at least one of a camera and an ultrasonic sensor, and the wheelchair is automatically moved into the containing cavity through the navigation device during the moving into bed stage.

According to a method for separating a wheelchair bed according to an embodiment of the present invention, the wheelchair bed includes a bed body and a wheelchair that can be combined and separated;

The process of separating the wheelchair from the bed body includes: preparing stage for getting out of bed, moving out of bed and deforming stage;

In the preparation stage for getting out of bed, raise the seat, and separate the seat, the wheelchair back and the lower leg plate from the bed body, so that the wheelchair is adjusted from the bed-shaped form to the in-out form;

In the stage of moving out of bed, the wheelchair in the in and out form moves out of the containing cavity from the entrance and exit;

In the deformation stage, the chair seat is lowered, the second end of the wheelchair backrest rotates upward, and the second end of the lower leg plate rotates downward, so that the wheelchair is adjusted from the in-and-out configuration to the chair-shaped configuration.

In some embodiments, in the in and out configuration, the second end of the wheelchair backrest and the second end of the lower leg plate are both higher than the seat.

In some embodiments, the wheelchair includes two armrests and an armrest lifting device, the two armrests are located on opposite sides of the seat, and the armrest lifting device connects the seat and the armrests on both sides In order to control the turning of the armrests on both sides; in the preparation stage for getting out of the bed, the two armrests rotate toward the vertical state to separate from the bed; in the moving out of bed stage and the deformation stage, the armrests are not maintained. move.

In some embodiments, the wheelchair includes: a footrest, the footrest has a first end and a second end, the first end of the footrest is rotatably connected to the second end of the lower leg plate When the bed-shaped form is turned into an in and out form, the second end of the foot pedal rotates in an upward direction; when the in and out form is turned into a chair-shaped form, the second end of the foot pedal rotates in a downward direction.

According to the method for separating the wheelchair bed according to the embodiment of the present invention, the wheelchair has three positions of chair shape, bed shape and in and out shape, so that the wheelchair and the bed body can be combined to facilitate the patient to enter the bed, and can be separated from each other conveniently. When the patient gets out of bed, the process of getting out of the patient is more stable, and the comfort and safety of getting out of bed are also greatly improved.

The additional aspects and advantages of the present invention will be partly given in the following description, and partly will become obvious from the following description, or be understood through the practice of the present invention.

Description of the drawings

The above and/or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Figure 1 is a structural schematic diagram of a wheelchair bed in an embodiment of the present invention;

Figure 2 is a second structural diagram of the wheelchair bed in the embodiment of the present invention;

Figure 3 is a schematic diagram of the exploded structure of the bed in the embodiment of the present invention;

Figure 4 is a first structural diagram of a wheelchair in an embodiment of the present invention;

Figure 5 is a schematic diagram of a part of the structure of a wheelchair in an embodiment of the present invention;

Fig. 6 is a second schematic diagram of a partial structure of a wheelchair in an embodiment of the present invention;

Fig. 7 is a partial enlarged schematic diagram of the position II of Fig. 6;

FIG. 8 is a partial enlarged schematic diagram of III in FIG. 6;

Fig. 9 is a partial enlarged schematic diagram of I in Fig. 2;

Figure 10 is a schematic structural view of a locking member in an embodiment of the present invention;

Figure 11 is a structural schematic diagram 1 of the armrest lifting device in an embodiment of the present invention;

Figure 12 is a second structural diagram of the armrest lifting device in an embodiment of the present invention;

Figure 13 is a structural schematic diagram 1 of the armrest lifting device in another embodiment of the present invention;

Figure 14 is a second structural diagram of the armrest lifting device in another embodiment of the present invention;

Figure 15 is a second schematic diagram of the structure of the wheelchair in the embodiment of the present invention;

Figure 16 is a schematic diagram of the bed preparation stage in the embodiment of the present invention;

Figure 17 is a schematic diagram of the moving-in-bed stage in the embodiment of the present invention;

FIG. 18 is a schematic diagram of the combining stage in the embodiment of the present invention;

FIG. 19 is a schematic flowchart of a method for combining a wheelchair and a bed in an embodiment of the present invention;

Fig. 20 is a schematic flowchart of a method for separating a wheelchair bed in an embodiment of the present invention.

Reference signs:

Wheelchair bed 001,

Wheelchair 100,

Seat 10, first hinged end 11, second hinged end 12, fourth hinged end 13, assembly port 10a,

Armrest 20, recess 20a, first hinge part 20b, second hinge part 20c, armrest body 21, opening 21a, cover 22, lever 22a, stage 23, remote control 24, drive 25, guide mechanism 26 , Mounting seat 261, guide rod 262,

Handrail lifting device 30,

Handrail drive assembly 31, electric push rod 311, rack rocker 312, gear 313, fixed rod 314, card slot 315, cross bar 316,

Turnover assembly 32, fixing member 321, first rocker 322, second rocker 323,

Wheelchair backrest 40, locking member 41, base 411, telescopic pin 412, wire rope 42, connecting seat 4201, brake screw 4202, pin 4203, lock back spring 43, backrest driver 44, seat belt assembly 45,

Lower leg plate 50, lower leg plate driver 51,

Foot pedal 60, pedal linkage 61, third hinged end 62,

Upper leg plate 70, base 80, column 81,

Travel device 90, travel motor 91, driving wheel 92, steering wheel 93,

Bed body 200,

The bed body 210, the accommodating cavity 210a, the inlet and outlet 210b, the first matching port 210c, the second matching port 210d, the first pad 211, the second pad 212,

Bed back 220, matching part 221,

Bottom plate 230, bedside assembly 240, side plate 250, guardrail 260, dining table assembly 270, light board assembly 280,

Guide rail 310, guide wheel 320,

Anti-pinch sensor 500.

Detailed ways

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, but should not be understood as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "Top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "radial", "circumferential" and other directions or positional relationships are based on the directions shown in the drawings The or positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features, which are used to distinguish and describe the features, without ordering, and without distinction.

In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected", and "connected" should be understood in a broad sense unless otherwise clearly specified and limited. For example, they can be fixed or detachable. Connected or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood in specific situations.

The following describes a method for combining a wheelchair bed according to an embodiment of the present invention with reference to the accompanying drawings.

As shown in FIGS. 1 to 4, according to a method for combining a wheelchair bed according to an embodiment of the present invention, the wheelchair bed 001 includes a bed 200 and a wheelchair 100 that can be combined and separated;

The bed body 200 includes a bed body 210 having an accommodating cavity 210a, and the horizontal side of the accommodating cavity 210a has an inlet and outlet 210b.

The wheelchair 100 includes a chassis 80, a seat 10, a wheelchair back 40, and a lower leg plate 50. The seat 10 is movably connected to the chassis 80. The wheelchair back 40 and the lower leg plate 50 each have a first end and a second end. The wheelchair back The first end of 40 and the first end of the lower leg plate 50 are rotatably connected to opposite sides of the seat 10. The wheelchair 100 has a chair-shaped form, a bed-shaped form, and an in and out form. In the in and out configuration, the chair seat 10, wheelchair back 40 and lower leg plate 50 are all higher than the bed body 210, that is to say, when entering, the chair seat 10, wheelchair back 40 and lower leg plate 50 are all higher than the bed body 210. The bed body 200 is in contact with the bed, which is beneficial for the patient to safely get into the bed; when going out, the chair seat 10, the wheelchair back 40 and the lower leg plate 50 are all higher than the bed body 210 and do not contact the bed body 200, which is beneficial for the patient to get out of the bed safely.

The process of combining the wheelchair 100 with the bed body 200 includes: a bed preparation stage, a moving bed stage, and a combining stage. In the bed preparation stage, the seat 10 is raised, the second end of the wheelchair back 40 rotates downward, and the second end of the lower leg plate 50 rotates upward, so that the wheelchair 100 is adjusted from the chair shape to the in and out shape. In the stage of moving into the bed, the wheelchair 100 in the in and out form moves from the entrance and exit 210b into the accommodating cavity 210a. In the joining phase, the seat 10 is lowered, and the seat 10, the wheelchair back 40 and the lower leg plate 50 are joined to the bed body 200, so that the wheelchair 100 is adjusted from the in and out form to the bed-shaped form.

It should be noted that in the bed preparation stage, after the second end of the wheelchair back 40 and the lower leg plate 50 are rotated, the upper end of the wheelchair 100 changes into a V-like shape, and the patient can present a more comfortable bed-entry posture. When the chair base 10 is raised, the height of the patient increases, which can prevent the patient from contacting or colliding with the bed body 200 when entering the bed, thereby improving the safety of the patient entering the bed. In the stage of moving into the bed, the entrance and exit 210b provide an access channel for the wheelchair 100, so that the wheelchair 100 can reach the accommodating cavity 210a. In the combined phase, the patient can reach the height of the bed body 210 by lowering the chair seat 10, the wheelchair back 40 and the lower leg plate 50 continue to rotate and then combine with the bed body 200, and the wheelchair 100 changes from the V shape to the flat state. Slowly lower the patient's back and legs to be flush with the bed body 210. The whole process is more stable, which increases the comfort for the patient to enter the bed. The patient moves less frequently, which can effectively avoid injury and help the patient to recover. .

According to the method for combining a wheelchair and a bed according to an embodiment of the present invention, the wheelchair 100 has three positions: a chair shape, a bed shape, and an in and out shape, so that when the wheelchair 100 is combined with the bed body 200, the patient enters the bed more quickly. Stable, the comfort and safety of entering the bed are greatly improved, and injuries can be effectively avoided.

In some embodiments, as shown in FIG. 16, in the in and out configuration, the second end of the wheelchair back 40 and the second end of the lower leg plate 50 are higher than the seat 10. In this way, when the patient is in the wheelchair 100, the patient's back and legs are tilted upward relative to the seat 10, which prevents the patient's back and legs from contacting the bed 200, thereby improving safety. In the joining phase, the second end of the wheelchair back 40 is rotated downward, and the second end of the lower leg plate 50 is rotated downward, so that the wheelchair back 40 and the lower leg plate 50 are engaged with the bed 200, that is, the patient’s leg Both the upper part and the back are slowly released downwardly from the upwardly tilted state, and finally the patient can lie flat on the bed body 200.

In some embodiments, as shown in FIG. 4, the wheelchair 100 includes two armrests 20 and an armrest lifting device 30. The two armrests 20 are located on opposite sides of the seat 10, and the armrest lifting device 30 connects the seat 10 and the armrests on both sides. The armrests 20 are used to control the overturning of the armrests 20 on both sides. In the bed preparation stage and the moving bed stage, the handrail 20 remains stationary, which can prevent the patient from falling when entering the bed, and ensure the safety of the patient during the entire bed entering stage. In the combining stage, the two armrests 20 are rotated toward the horizontal state to be engaged with the bed body 200, and the armrests 20 are combined with the bed body 200 in a flattened manner. The opening of the armrests 20 is safer and the load-bearing capacity of the bed body 200 can be greatly improved. ability.

Optionally, as shown in Figures 11 and 12, the armrest lifting device 30 includes an armrest drive assembly 31 and two sets of turning assemblies 32. Each armrest 20 corresponds to a set of turning assemblies 32; each set of turning assemblies 32 includes a set of turning assemblies 32 arranged on a chair seat. The fixing member 321, the first rocker 322 and the second rocker 323 below 10, one end of the first rocker 322 is hinged with the seat 10, and the other end is hinged with the bottom of the armrest 20, and the fixing member 321 is fixed on the seat 10. One end of the second rocker 323 is hinged with the fixing member 321, and the other end is hinged with the bottom of the armrest 20. The armrest drive assembly 31 is configured to drive the first rocker 322 to rotate around the hinged joint with the seat 10 and drive the second The rocker 323 rotates in the same direction as the hinge joint of the fixing member 321. The first rocker 322 and the second rocker 323 are configured to jointly drive the armrest 20 to turn outward to a horizontal state when rotated in a direction close to the seat 10, The first rocker 322 and the second rocker 323 are configured to jointly drive the armrest 20 to flip inward to a vertical state when rotated in a direction away from the seat 10.

Optionally, in the armrest lifting device 30, the present application does not specifically limit the shape and arrangement of the first rocker 322, and it only needs to ensure that it achieves the corresponding function. Normally, the middle of the first rocker 322 is bent upward, and the hinge joint between the first rocker 322 and the armrest 20 is bent upward; the bottom of the armrest 20 has a recess 20a, and the recess 20a is provided with a first hinge 20b. , The curved end of the first rocker 322 is hinged with the first hinge part 20b, and the first rocker 322 is configured to push the armrest 20 to flip when the curved end rotates around the hinge with the seat 10.

Optionally, in the armrest lifting device 30, the shape and arrangement of the fixing member 321 and the second rocker 323 are not particularly limited in this application, and it is only necessary to ensure that they achieve corresponding functions. Normally, the fixing member 321 is L-shaped, and one end is fixed on the bottom surface of the seat 10, and the other end is close to the armrest 20; the bottom of the armrest 20 has a recess 20a, and the recess 20a is provided with a second hinge part 20c; The rocker 323 is in the shape of an arc, and one end is hinged with the end of the fixing member 321 close to the armrest 20, and the other end is hinged with the second hinge part 20c. In this embodiment, the first rocker 322 and the second rocker 323 cooperate to realize the flip and lift of the armrest 20, and the first rocker 322 and the second rocker 323 can be hinged to the bottom of the seat 10 respectively.

In some embodiments, as shown in FIGS. 11 and 12, the armrest driving assembly 31 drives the first rocker 322 to rotate through the connecting rod 33. One end of the connecting rod 33 is hinged with the middle of the first rocker 322, and the other end is connected to the armrest. The driving assembly 31 is hinged. Specifically, the first rocker 322 is formed into a shape with both ends bent upward. Normally, only the connecting rod 33 needs to be moved (horizontally or vertically), because the connecting rod 33 and the armrest With the hinge structure of the driving assembly 31 and the first rocker 322, the connecting rod 33 can drive the first rocker 322 to rotate. The armrest drive assembly 31 includes an electric push rod 311 and two rack rockers 312 horizontally arranged. The gear 313 is meshed between the two rack rockers 312, so that the electric push rod 311 drives the two rack rockers 312 to move synchronously. The electric push rod 311 is configured to drive one of the rack rockers 312 to move horizontally or the gear 313 to rotate, and each rack rocker 312 is hinged to one end of the connecting rod 33 of the corresponding armrest 20. In this embodiment, the electric push rod 311 is connected to one of the rack rockers 312. Specifically, the fixed end of the electric push rod 311 is fixed under the seat 10 by a pin, and the telescopic end of the electric push rod 311 is screwed Connected with the lower hole of the rack rocker 312 below, the gear 313 is relatively fixed to the seat 10 by a pin. The telescopic end of the electric push rod 311 can drive the rack rocker 312 to move horizontally, and the gear 313 functions At the same time, it drives the other rack rocker 312 to move horizontally in the opposite direction. In other examples, the electric push rod 311 may also be a manual telescopic rod, so as to manually push the armrest 20 up and down.

Optionally, as shown in FIG. 11, a fixed rod 314 is connected to the end of the rack rocker 312, the fixed rod 314 is provided with a slot 315, and the armrest 20 is configured to slide into the fixed bottom on the same side when the armrest 20 is in a vertical state. In the slot 315 of the rod 314. Due to the special structure of the flip assembly 32 and the connection relationship with the armrest 20, the armrest 20 is on the same horizontal plane as the seat 10 when the armrest 20 is in a horizontal state. When the armrest 20 is in a vertical state, the armrest 20 as a whole will move downward so that the bottom can slide in. Positioning is achieved in the corresponding card slot 315; in order to achieve switching between different states, a limit wheel can be provided at the bottom of the armrest 20 to facilitate the limit wheel to slide into or out of the card slot 315.

At this time, the working process of the armrest lifting device 30 is: under the action of the electric push rod 311, the lower rack rocker 312 drives the connecting rod 33 to move, pushes the subsequent first rocker 322 to rotate and drives the second rocker 323 Rotating, the first rocker 322 rotates around the hinged joint with the seat 10, and the second rocker 323 rotates around the hinged joint with the fixing member 321, so as to push the armrest 20 on one side to rotate. When the electric push rod 311 pushes the lower rack rocker 312 to move, the gear 313 engages and drives the upper rack rocker 312 to move in the opposite direction, thereby pushing the corresponding connecting rod 33 and passing the corresponding first rocker 322 and the second rocker 323 drive the armrest 20 on the other side to synchronously rotate. When the armrests 20 on both sides are rotated by 90° and are in a vertical state, the limiting wheels at the bottom of the armrests 20 slide into the slots 315 at the ends of the fixed rods 314 on the same side, thereby restricting the armrests 20 on both sides from shaking left and right.

In some embodiments, as shown in FIGS. 13 and 14, the armrest drive assembly 31 includes an electric push rod 311 fixed under the seat 10, the bottom end of the electric push rod 311 telescopes up and down, and the bottom end of the electric push rod 311 is fixed There is a cross bar 316, and both ends of the cross bar 316 are hinged with the connecting rods 33 of the armrests 20 on both sides respectively. The fixed end of the electric push rod 311 is fixed under the seat 10 by a bolt, and the telescopic end of the electric push rod 311 is fixedly connected with a cross bar 316, which is connected to the connecting rod 33 corresponding to the armrests 20 on both sides, and the electric push rod 311 The expansion and contraction of the telescopic end can drive the crossbar 316 and the connecting rod 33 to move up and down, so as to realize the synchronous lifting of the armrest 20. In this embodiment, the recess 20a, the first hinge part 20b, and the second hinge part 20c are located on the bottom and outward side of the armrest 20 in a vertical state, and the curved end of the first rocker 322 is close to a right-angled shape, half-enclosed The bottom of the armrest 20 and supports the bottom of the armrest 20. With the rotation of the first rocker 322, under the restriction of the curved end, the armrest 20 is pushed to turn over; the second rocker 323 surrounds the curved part of the armrest 20 and has the same effect on the armrest 20. With a restrictive effect, with the rotation of the second rocker 323, the armrest 20 can also be pushed to turn over.

At this time, the working process of the armrest lifting device 30 is: under the action of the electric push rod 311, the connecting rod 33 is driven to move, pushing the subsequent first rocker 322 to rotate and drive the second rocker 323 to rotate, the first rocker 322 Rotating around the hinged joint with the seat 10, the second rocker 323 rotates around the hinged joint with the fixing member 321, thereby pushing the armrests 20 on both sides to rotate synchronously.

In some embodiments, as shown in FIG. 4, the wheelchair 100 includes a footrest 60, the footrest 60 has a first end and a second end, and the first end of the footrest 60 is rotatably connected to the first end of the lower leg plate 50. On the two ends, when the chair-shaped form is turned into the in-out form, the second end of the footrest 60 rotates in a downward direction. In this way, the foot pedal 60 can be rotated to a horizontal state, thereby realizing the combination with the bed 200.

Optionally, the bottom surface of the footrest 60 can be adjusted to be flush with the contact point of the chassis 80 through the lifting of the seat 10 and the rotation of the lower leg plate 50 in the chair shape. As a result, the foot pedal 60 is in a horizontal state as a whole, so as to better support the patient's feet.

In some embodiments, as shown in FIG. 15, the chassis 80 runs on the ground through the driving wheels 92 and the steering wheels 93. The chassis 80 is also provided with a driving motor 91 outside the driving wheels 92. The driving motor 91 is connected to the driving wheels 92. Connected brushless motor. In this way, the driving motor 91, the driving wheel 92, and the steering wheel 93 jointly constitute the walking device 90 of the wheelchair 100. The driving motor 91 drives the driving wheel 92 to rotate to drive the wheelchair 100 to enter or leave the accommodating cavity of the bed 200 along the entrance and exit 210b. 210a, and the steering wheel 93 can realize the steering during the movement of the wheelchair 100.

In some embodiments, as shown in FIG. 4, the seat 10 is provided with an assembly opening 10a, and the wheelchair 100 further includes an upper leg plate 70 rotatably fitted at the assembly opening 10a. The upper leg plate 70 can be rotated to a part of Above the seat 10. In this way, when the wheelchair 100 is transformed into a chair-shaped state, the upper leg plate 70 is lifted up to a certain angle, so as to reach a position where the patient's legs are more comfortable when sitting, and the comfort is improved. The lifting angle of the upper leg plate 70 can be adjusted as required. For example, the adjustable range of the angle is 15 degrees to 18 degrees to meet the needs of different users.

In some embodiments, as shown in FIGS. 3 and 4, guide rails 310 are provided on opposite sides of the accommodating cavity 210a, and guide wheels 320 are provided on opposite sides of the wheelchair 100. The guide wheels 320 are fitted on the guide rails during the moving into bed stage. 310, so that the wheelchair 100 can be guided into the accommodating cavity 210a. The guide rail 310 and the guide wheels 320 constitute a guiding device for the wheelchair 100 to enter the bed, so that the in and out process of the wheelchair 100 is more stable and reliable.

In some embodiments, as shown in FIG. 3, the guide rails 310 on both sides are formed in arcs that extend away from each other at the portions adjacent to the inlet and outlet 210b. Through this design, it can be ensured that the guide wheels 320 on the wheelchair 100 are smoothly matched with the guide rail 310, and the stability of the wheelchair 100 when entering the bed is further improved.

In some embodiments, as shown in FIG. 2, the bed body 200 includes a bed body back 220, the bed body back 220 is connected to the bed body 210 in an angle adjustable manner, and the bed body back 220 is located on the bed body 210 away from the inlet and outlet 210b. One side, that is, when the patient is lying on the bed 200, the patient's back is in contact with the bed back 220. Since the angle of the bed back 220 is adjustable, the patient can be lifted back. In the combining stage, the wheelchair back 40 and the bed back 220 are engaged, so that the wheelchair back 40 and the bed back 220 can be adjusted synchronously. That is to say, by adjusting the wheelchair back 40 of the wheelchair 100, the bed can be adjusted synchronously. The function of the backrest 220 is that since the wheelchair backrest 40 of the wheelchair 100 is lifted independently, in this way, the structure complexity of the bed body 200 is reduced, the manufacturing cost is reduced, and the backrest can be automatically lifted.

Optionally, as shown in Fig. 9, a mating portion 221 is provided on the bed back 220, and a movable locking member 41 is provided on the wheelchair back 40. The locking member 41 is connected to the armrest lifting device 30 to move synchronously with the armrest 20. In other words, the locking member 41 realizes the linkage with the movement of the armrest lifting device 30, and the two are related. When the armrest 20 is in a horizontal state, the locking member 41 cooperates with the mating portion 221, and when the armrest 20 is in a vertical state, the locking member 41 is separated from the mating portion 221. That is to say, when the wheelchair 100 is combined with the bed 200, the armrest lifting device 30 drives the armrest 20 to be in a horizontal state. At this time, the locking member 41 cooperates with the matching portion 221, and the wheelchair back 40 is combined with the bed back 220; when the wheelchair 100 is combined with the bed The body 200 is separated, and the armrest lifting device 30 drives the armrest 20 to be in a vertical state. At this time, the locking member 41 is disengaged from the matching portion 221, and the wheelchair back 40 and the bed back 220 are disengaged from coupling. In this way, the interference of the combination between the wheelchair back 40 and the bed back 220 on the wheelchair 100 getting out of the bed is avoided, and the safety of the bed 200 and the wheelchair 100 is improved.

Optionally, as shown in FIG. 6, the locking member 41 is telescopically arranged on the wheelchair back 40, and the locking member 41 is connected to the armrest lifting device 30 through a wire rope 42. When the armrest lifting device 30 drives the armrest 20 to be horizontal, the locking member is pulled by the wire rope 42 41 stretched out. A lock back spring 43 is also provided on the wheelchair back 40, and the lock piece 41 is reset by the lock back spring 43 when the wire rope 42 is loose. In other words, after the armrest 20 is raised, the wire rope 42 lacks a pulling force. At this time, the retractable pin can be reset by the elastic action of the lock back spring 43. This structure is simple and more convenient to use.

Optionally, as shown in FIGS. 7 and 10, the locking member 41 includes a base 411 and a telescopic pin 412. The base 411 is provided on the wheelchair back 40, and the telescopic pin 412 is movably provided on the base 411. For example, the mating portion 221 is a pin hole formed on the backrest 220 of the bed body. In this way, when the armrest drive assembly 31 drives the armrest 20 to turn over, the telescopic pin 412 is pulled by the wire rope 42 to insert it into the pin hole, thereby realizing the combination of the wheelchair back 40 and the bed back 220. The wheelchair back 40 is also provided with a lock back spring 43. When the wire rope 42 is loosened, the locking member 41 is reset by the lock back spring 43. That is to say, the wire rope 42 lacks pulling force after the armrest 20 is raised. At this time, the elasticity of the lock back spring 43 is used. The function can realize the reset of the telescopic pin, the structure is simple and it is more convenient to use.

In some embodiments, when the locking member 41 is working, the moving end 311a of the electric push rod 311 is connected to the rack rocker 312 through the pin 4203, one end of the wire rope 42 is provided with a connecting seat 4201, and the connecting seat 4201 is braked The screw 4202 is fixed to the rack rocker 312, so that when the rack rocker 312 is extended or shortened, the wire rope 42 will be driven. The other end of the wire rope 42 is connected with the telescopic pin 412, and under the action of the wire rope 42, it expands and contracts. The pin 412 reciprocates on the base 411 to cooperate with the matching portion 221 to realize the separation and combination of the wheelchair back 40 and the bed back 220.

In the present invention, after the bed and chair are combined, the wheelchair back 40 and the bed back 220 are automatically combined into one body, and the automatic combination is realized in the form of a telescopic pin 412. The locking structure of the wheelchair back 40 and the bed back 220 includes a telescopic pin 412, a lock back spring 43, a wire rope 42, and a base 411. When the wheelchair 100 turns into a bed state, the armrest 20 changes from the vertical state to the horizontal state at the end. At this time, the armrest drive assembly 31 will pull out the telescopic pin 412 through the wire rope 42 and the telescopic pin 412 will automatically be inserted into it. The mating portion 221 of the bed back 220 realizes the connection between the wheelchair back 40 and the bed back 220 to achieve the purpose of lifting the back together. When the wheelchair 100 turns into a chair state, the armrest 20 of the wheelchair 100 changes from a horizontal state to a vertical state, the wire rope 42 will relax, and the telescopic pin 412 is automatically reset and retracted into the chair body 100 under the action of the lock back spring 43 , To realize the separation of the wheelchair back 40 and the bed back 220.

In some embodiments, as shown in FIGS. 5 and 6, the wheelchair 100 further includes: a lower leg plate driving member 51 and a foot pedal linkage 61, and the lower leg plate driving member 51 is connected between the lower leg plate 50 and the seat 10 to The lower leg plate 50 is driven to rotate, and the foot pedal linkage 61 is respectively connected with the lower leg plate 50 and the seat 10 to drive the foot pedal 60 to link when the lower leg plate 50 rotates. For example, the lower leg plate driver 51 is a push rod motor, one end of the push rod motor is hinged on the seat 10 and the other end is hinged on the lower leg plate 50, wherein the end of the push rod motor close to the seat 10 is between the seat 10 Leave a gap so that the push rod motor, the seat 10, and the lower leg plate 50 are distributed in a triangle, so that when the push rod motor is extended, the lower leg plate 50 can be driven to rotate around the hinge point with the seat 10, thereby driving the lower leg plate 50 Rotate. In a specific example, the lower leg plate driving member 51 can also drive a motor, and the motor shaft of the driving motor is connected to the rotation shaft of the lower leg plate 50, and the lower leg plate 50 can also be driven to rotate in this way. The pedal linkage 61 is respectively connected with the lower leg plate 50 and the seat 10 to drive the pedal 60 to be linked when the lower leg plate 50 rotates. The pedal linkage 61 realizes the linkage function to realize the pedal 60 and the lower leg Synchronous rotation of the plate 50.

Optionally, as shown in FIG. 6, the pedal linkage 61 is hinged to the pedal 60 and the seat 10 respectively, and the pedal linkage 61 is constructed parallel to the pedal 60, the lower leg plate 50 and the seat 10 Four-bar linkage mechanism. It can be understood that the seat 10 has a first articulated end 11 and a second articulated end 12, the first articulated end 11 is connected to the footrest 60, the second articulated end 12 is connected to the seat 10, and the footrest 60 has The third hinged end 62 connected with the pedal linkage 61, the seat 10 has a fourth hinged end 13 connected with the pedal linkage 61, so the parallel four-bar linkage mechanism is actually composed of: pedal linkage 61. The lower leg plate 50, the connecting line of the first hinged end 11 and the third hinged end 62, and the connecting line of the second hinged end 12 and the fourth hinged end 13 are formed, so that the lower leg plate 50 and the lower leg plate 50 and Synchronous rotation of the foot pedal 60.

In some embodiments, as shown in FIG. 6, the wheelchair 100 further includes a backrest driving member 44 for driving the wheelchair backrest 40 to rotate on the seat 10. For example, the backrest driver 44 is a push rod motor, one end of the push rod motor is hinged on the wheelchair back 40 and the other end is hinged below the seat 10, wherein the backrest driver 44, the wheelchair back 40, and the seat 10 form a triangle. When the push rod of the push rod motor is shortened, the wheelchair back 40 can be driven to rotate from the vertical state to the horizontal state; when the push rod of the push rod motor is extended, the wheelchair back 40 is driven to rotate, and then from the horizontal state. The state changes to the vertical state.

In some embodiments, as shown in FIG. 15, the seat 10 is connected to the chassis 80 in a liftable manner through a column 81. For example, the column 81 may be a high-power, multi-stroke lifting column. When the push rod of the column 81 is extended, the entire components above the chassis 80 of the wheelchair 100 are driven to rise. Conversely, when the push rod of the column 81 is shortened, the parts above the chassis 80 are lowered as a whole. The lifting of part of the components of the wheelchair 100 can improve the convenience of users and adapt to the comfort of users of different heights. For example, when the wheelchair 100 is a nursing chair, it can also improve the accompany of the attendant in the wheelchair. The convenience. It is worth noting that in this way, the wheelchair 100 can be raised into the bed, thereby avoiding the structure of the bed surface. Since the structure of the bed surface is static, the complexity of the bed body 200 can be reduced.

In some embodiments, after the wheelchair 100 is combined with the bed 200, the bottom of the wheelchair 100 is flush with the bottom of the chassis 80, or the bottom of the wheelchair 100 is supported on the bottom of the chassis 80.

In some embodiments, as shown in FIG. 5, the wheelchair 100 is provided with an anti-pinch sensor 500 where it is combined with the bed 200. For example, the anti-pinch sensor 500 may be a strip-shaped pressure sensor, and there are multiple anti-pinch sensors 500 arranged on opposite sides of the wheelchair 100. In this way, when the wheelchair 100 is combined with the bed 200, the anti-pinch sensor 500 can remind the user to prevent the user from being injured by the pinch, thereby improving the safety of use.

In some embodiments, the wheelchair 100 is provided with a navigation device (not shown in the figure), the navigation device includes at least one of a camera and an ultrasonic sensor, and the wheelchair 100 is automatically moved into the receiving cavity 210a through the navigation device during the moving into bed stage. For example, a number of ultrasonic sensors may be provided on the chassis 80 to help determine obstacles when the wheelchair 100 is walking, so as to better complete various motion actions. A camera may be provided on the rear side of the chassis 80 to perform a visual navigation function. In addition to identifying the bed body 200 for automatic docking, it can also further help determine obstacles during walking.

In some embodiments, as shown in FIG. 5, during exercise and bed-chair change, the wheelchair 100 is equipped with a seat belt assembly 45, and the seat belt assembly 45 is provided on the wheelchair back 40 to protect the user and ensure that the user Do not leave the wheelchair 100 during this process to avoid danger.

In some embodiments, as shown in FIG. 3, the bed body 210 is provided with first pads 211 on opposite sides of the accommodating cavity 210a, and the bed back 220 is provided with first pads 211 on opposite sides of the accommodating cavity 210a. The two cushion plates 212 pass through the first cushion plate 211 and the second cushion plate 212 to prevent the user from directly contacting the upper surface of the bed body 210 to improve comfort. A first mating opening 210c is defined between the first backing plate 211 and the second backing plate 212 on one side of the accommodating cavity 210a, and a second mating opening 210d is defined between the two second backing plates 212. By setting the first mating opening The 210c and the second matching opening 210d are beneficial to improve the matching effect of the wheelchair 100 and the bed body 210, and facilitate the combination of the bed body 210 and the wheelchair 100.

In some embodiments, as shown in FIG. 3, the bed body 200 further includes a bottom plate 230, which is fixedly connected to the bed body 210 and located at the bottom of the receiving cavity 200a. When the wheelchair 100 enters the bed, in order to prevent insufficient friction of the bed body 200 on the ground, the bed body 200 moves due to lateral force during the wheelchair 100 entering the bed, thereby affecting the attitude of the wheelchair 100 when entering the bed. Here, a bottom plate 230 is added to the bottom of the bed body 200. During use, the bottom plate 230 is placed on the ground and locked with the bed body 210 through four legs. After the wheelchair 100 enters the bed body 200, the wheelchair 100 moves on the bottom plate 230. . In this way, even when the bed body 200 moves slightly laterally, the relative position of the wheelchair 100 and the bed will not change drastically, and the entering posture of the wheelchair 100 will not be affected basically.

Optionally, the bottom plate 230 may be an aluminum alloy plate, which has high structural strength and low cost.

Optionally, as shown in FIG. 3, the bed body 200 further includes: a bed head assembly 240 and two side panels 250. The two side panels 250 are provided on both sides of the bed body 210 in the width direction, which can improve the overall bed body 200. The structural strength is more beautiful.

Optionally, as shown in FIG. 3, a guardrail 260 is provided on the bed body 210, so that the head assembly 240, the two side panels 250, and the guardrail 260 constitute the peripheral protection device of the bed body 200, which can prevent the user from falling. The role of improving safety.

Optionally, as shown in FIG. 3, a dining table assembly 270 is provided on the bed body 210. The dining table assembly 270 may be a dining table, and the dining table may be set on the guardrail 260, so as to facilitate the user to eat on the bed. Among them, the bed body 210 is composed of welding parts, and its main function is to install and support other components of the bed body 200. In addition, the bed body 200 is mainly composed of a bed body 210, a bed head assembly 240, and a side plate 250, which is convenient for disassembly, assembly and transportation.

Optionally, as shown in FIG. 3, two spaced apart light board assemblies 280 are provided at the end of the bed body 210. The light board assemblies 280 can provide an identification function for the wheelchair 100 to automatically enter the bed after being lit, so as to use The visual inspection navigation is conducive to realizing the automatic bed entry of the wheelchair 100.

According to a method for separating a wheelchair bed according to an embodiment of the present invention, the wheelchair bed 001 includes a bed body 100 and a wheelchair 200 that can be combined and separated.

The wheelchair 100 includes: a chassis 80, a seat 10, a wheelchair back 40 and a lower leg plate 50. The seat 10 is movably connected to the chassis 80. Both the wheelchair back 40 and the lower leg plate 50 have a first end and a second end. The wheelchair back The first end of 40 and the first end of the lower leg plate 50 are rotatably connected to opposite sides of the seat 10, and the wheelchair 100 has a chair shape, a bed shape, and an in and out shape. In the in and out configuration, the chair seat 10, wheelchair back 40 and lower leg plate 50 are all higher than the bed body 210. That is to say, when entering, the chair seat 10, wheelchair back 40 and lower leg plate 50 are all higher than the bed body 210 and are not connected to the bed body 210. When going out, the chair seat 10, the wheelchair back 40 and the lower leg plate 50 are all higher than the bed body 210 and do not contact the bed body 200, which is beneficial for the patient to get out of the bed safely.

The process of separating the wheelchair 100 from the bed body 200 includes: a bed preparation stage, a moving out stage and a deformation stage. In the preparation stage for getting out of bed, the seat 10 is raised, and the seat 10, the wheelchair back 40 and the lower leg plate 50 are separated from the bed body 200, so that the wheelchair 100 is adjusted from the bed shape to the in and out shape. In the stage of moving out of bed, the wheelchair 100 in the in and out form moves out of the accommodating cavity 210a from the entrance and exit 210b. In the deformation stage, the seat 10 is lowered, the second end of the wheelchair back 40 rotates upward, and the second end of the lower leg plate 50 rotates downward, so that the wheelchair 100 is adjusted from the in and out form to the chair-shaped form.

It should be noted that in the preparation stage for getting out of bed, after the second end of the wheelchair back 40 and the lower leg plate 50 are rotated, the upper end of the wheelchair 100 changes into a V-like shape, and the patient can present a more comfortable getting out posture. When the chair base 10 is raised, the height of the patient increases, which can prevent the patient from contacting or colliding with the bed body 200 when entering the bed, thereby improving the safety of the patient getting out of the bed. In the stage of moving out of the bed, the entrance and exit 210b provide an access channel for the wheelchair 100, so that the wheelchair 100 can leave the accommodating cavity 210a. In the deformation stage, the chair seat 10 is lowered, the wheelchair 100 returns to its normal height, the wheelchair back 40 rotates upwards to straighten the patient's back, the lower leg plate 50 rotates downwards to lower the patient's legs, and the wheelchair 100 changes from a V shape to a chair Shape shape, the whole process is more stable, and the comfort of getting out of bed is increased.

According to the method for separating a wheelchair bed according to an embodiment of the present invention, the wheelchair 100 has three positions: chair-shaped, bed-shaped, and in-and-out, so that the wheelchair 100 and the bed 200 can be combined to facilitate the patient to enter the bed, but also The separation facilitates the patient to get out of the bed, the process of getting out of the patient is more stable, and the comfort and safety of getting out of the bed are also greatly improved.

In some embodiments, as shown in FIG. 16, in the in and out configuration, the second end of the wheelchair back 40 and the second end of the lower leg plate 50 are higher than the seat 10. In this way, when the patient is in the wheelchair 100, the patient's back and legs are tilted upward relative to the seat 10, which prevents the patient's back and legs from contacting the bed 200, thereby improving safety.

In some embodiments, as shown in FIG. 4, the wheelchair 100 includes two armrests 20 and an armrest lifting device 30. The two armrests 20 are located on opposite sides of the seat 10, and the armrest lifting device 30 connects the seat 10 and the armrests on both sides. The armrests 20 are used to control the overturning of the armrests 20 on both sides. In the preparation stage for getting out of the bed, the two handrails 20 are rotated toward the vertical state to separate from the bed body 200; in both the moving out stage and the deforming stage, the handrails 20 remain stationary. In this way, the patient can be prevented from detaching from the wheelchair 100, and the safety of the patient can be improved.

In some embodiments, as shown in FIG. 4, the wheelchair 100 includes a footrest 60, the footrest 60 has a first end and a second end, and the first end of the footrest 60 is rotatably connected to the first end of the lower leg plate 50. On the two ends. When the bed-shaped configuration turns to the in-out configuration, the second end of the footrest 60 rotates upward; when the in-exit configuration is converted to the chair-shaped configuration, the second end of the footrest 60 rotates in the downward direction. In this way, the foot pedal 60 is no longer flush with the lower leg plate 50 after being rotated, and can be used to support the patient's feet and improve the comfort of the patient in the wheelchair 100.

In the following, a specific embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 4 to 15, the wheelchair 100 in the embodiment of the present invention has a complete wheelchair function, and the wheelchair 100 mainly includes a seat assembly and a chassis assembly. The seat assembly mainly includes: seat 10, armrest 20, armrest lifting device 30, wheelchair back 40, backrest driver 44, lower leg plate 50, lower leg plate driver 51, foot pedal 60, foot pedal linkage 61 , Upper leg plate 70. Among them, the wheelchair back 40 and the lower leg plate 50 are respectively connected to the seat 10 through a rotating shaft 1 (not shown in the figure) and a rotating shaft 2 (not shown in the figure), and the foot pedal 60 is connected through a rotating shaft 3 (not shown in the figure). It is connected to the lower leg plate 50; the left and right armrests 20 are connected to the seat 10 through the rotating shaft 4 (not shown in the figure) and the rotating shaft 5 (not shown in the figure) respectively. The chassis assembly mainly includes: a chassis 80, a column 81, a driving motor 91, a driving wheel 92, a steering wheel 93, and a guide wheel 320. The chassis part is connected to the seat part through a liftable column 81, and the chassis part uses driving wheels 92 and steering wheels 93 to realize movement and direction functions, and assists the wheelchair 100 to automatically enter the bed with the help of guide wheels 320 on both sides.

The bed body 200 includes: a bed body 210, a receiving cavity 210a, an inlet and outlet 210b, a first matching port 210c, a second matching port 210d, a first pad 211, a second pad 212, a bed back 220, a matching portion 221, The bottom plate 230, the headboard assembly 240, the side plate 250, the guardrail 260, the dining table assembly 270, and the light board assembly 280.

As shown in Fig. 16, when the wheelchair 100 is ready to enter the bed, the wheelchair 100 first pushes the seat assembly to a suitable height by means of the column 81, and then rotates the lower leg plate 50 clockwise around the rotation axis 2 by means of a four-bar linkage mechanism. At the same time, the foot pedal 60 will rotate around the rotation axis 3 in a counterclockwise direction. At the same time, driven by the backrest driver 44, the wheelchair backrest 40 will rotate clockwise around the rotation axis 1. The wheelchair 100 will finally be adjusted to a “V”-shaped posture, which can ensure that the user is in a comfortable state when he is about to enter the bed. (Note: The sequence of actions of the various components of the wheelchair can be changed without affecting the user experience)

As shown in FIG. 17, during the docking process of entering the bed, under the guidance of the navigation device and the guide wheels 320, the wheelchair 100 enters the bed 200 gently. When the wheelchair 100 reaches the designated position, the seat part of the wheelchair 100 is first lowered to a height level with the bed. Then, the left and right armrests 20 respectively rotate around the rotation axis 4 and the rotation axis 5 to a horizontal position. Then, the lower leg plate 50 rotates counterclockwise around the rotation axis 2 to a horizontal position, and at the same time, the wheelchair back 40 will also rotate around the rotation axis 1 in a clockwise direction to the horizontal position. As shown in Fig. 18, when the entire action is completed, the docking of the wheelchair 100 and the bed 200 is completed. (Note: The sequence of actions of the various components of the wheelchair can be changed without affecting the user experience)

According to the combination process of the wheelchair 100 and the bed body 200 in FIGS. 16 to 18, it can be seen that when the wheelchair 100 needs to be separated from the bed body 200, the wheelchair 100 will transform from a horizontal position to a "V"-like shape and move from the bed body 200 Move out inside. First, the left and right armrests 20 will rotate around the rotation axis 4 and the rotation axis 5 to the vertical position. At the same time, the wheelchair back 40 will rotate counterclockwise around the rotation axis 1 to a suitable position, and the lower leg plate 50 will also rotate clockwise around the rotation axis 2 to a suitable position. Then, the seat assembly of the wheelchair 100 will rise under the push of the column 81 until the lowest part of the seat assembly is higher than the plane of the bed. Finally, through the rotation of the driving wheel 92, the entire wheelchair 100 is removed from the bed 200.

After the wheelchair 100 is moved out, the wheelchair 100 will be driven by the lower leg plate driving member 51 and the backrest driving member 44 to transform from a "V"-like posture to a sitting posture. In this process, first, the wheelchair back 40 will rotate around the rotation axis 1 in a counterclockwise direction to a proper position. Then, the lower leg plate 50 rotates counterclockwise around the rotating shaft 2 to a proper position, and at the same time, the foot pedal 60 rotates clockwise around the rotating shaft 3 to an approximately horizontal position. When the components are rotated in place, the wheelchair completes the posture transformation process.

In summary, the present invention can provide a fully automatic unmanned docking or separation of a wheelchair and a nursing bed as a product and a docking/separation control method. By automatically deforming and lifting multiple components on the wheelchair 100, The chair wheel 100 can be well connected with the bed body 200 after entering the bed. Among them, the human body supporting surface of the wheelchair 100 has three states: a moving state outside the bed, a supporting state on the bed surface, and a V-like state, that is, the chair shape, the bed shape, and the in and out state described above.

The wheelchair 100 changes from the state of movement outside the bed to the state of support on the bed surface, or from the state of support on the bed surface to the state of movement outside the bed. The support surface of the human body is first changed to a V-like shape higher than the bed surface, and then passed The wheelchair 100 travels with a motor for displacement.

As shown in FIG. 19, when the wheelchair 100 is in the preparation stage for entering the bed, the column 81 on the chassis 80 will rise to lift the wheelchair 10 higher than the surface of the bed body 200. The backrest driving member 44 and the lower leg plate driving member 51 installed at the bottom of the chair seat will also lift the lower leg plate 50 and the wheelchair back 40 of the wheelchair 100 to a V-like height.

As shown in Figure 19, the translation into the bed navigation: when the wheelchair 100 is in the stage of moving into the bed, the driving wheels 92 of the chassis 80 will push the wheelchair 100 into the bed, and the guide wheels 310 on both sides of the chassis 80 will assist the wheelchair 100 to rely on The guide rails 320 on both sides of the joint on the inner side of the bed move into the joint.

As shown in Fig. 19, the descending combination: when the wheelchair 100 enters the combined position, the upright 81 of the chassis 80 will be lowered, and the backrest driving member 44 and the lower leg plate driving member 51 will also be retracted to a suitable combined position. When the seat 10, the wheelchair back 40, and the lower leg plate 50 reach the installation position, the armrest lifting device 30 of the armrest 20 will drive the armrests 20 on both sides of the seat 10 to turn sideways to the installation position. Finally, the wheelchair backrest 40 will be combined with the bed backrest 220 to ensure that the wheelchair backrest 40 and the bed backrest 220 will be lifted and lowered together after entering the bed to realize the operation of lifting the back.

As shown in FIG. 20, the preparation stage for getting out of bed: when the wheelchair 100 needs to be separated from the bed body 200, the wheelchair back 40 and the bed back 220 will be uncoupled. After that, the column 81 at the bottom of the wheelchair 100 will lift the chair to the ready position for getting out of bed. At the same time, the backrest driving member 44 and the lower leg plate driving member 51 also lift their control parts to a V-like height. After that, the armrest 20 will also be turned and retracted laterally under the driving of the armrest lifting device 30 to play a role of safety and anti-fall protection.

As shown in Fig. 20, the posture of the out-of-bed wheelchair is changed: after the wheelchair 100 is out of the bed, the column 81 of the chassis 80 will be lowered to the out-of-bed moving state. The backrest driving member 44 also retracts or lifts its control part to a state of moving out of the bed.

In the present invention, the bed structure design and the automatic bed and chair docking technology are the core technological innovations of this project. The bed body 200 constitutes a U-shaped bed through the accommodating cavity 210a, and adopts the design of the U-shaped bed frame and the deformed bed and chair in the middle. By restricting the in and out posture of the bed and chair, it is possible to prevent accidental pinching and slipping of the patient during the docking process. Among them, the back lifting mechanism at the wheelchair back 40 can adopt a slip compensation design to improve the comfort of the user during the lifting and falling of the bed. The wheelchair 100 and the bed body 200 can also be equipped with visual sensors, through dynamic path planning, navigation and intelligent control technology, to realize the smooth movement and smooth docking of the bed and chair.

Other configurations and operations of the wheelchair 100 and the bed 200 according to the embodiment of the present invention are known to those of ordinary skill in the art, and will not be described in detail here.

In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific feature, structure, material or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention . In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

A method for combining a wheelchair bed, characterized in that the wheelchair bed comprises a bed body and a wheelchair that can be combined and separated;

The bed body includes a bed body, the bed body has an accommodating cavity, and the horizontal side of the accommodating cavity has an inlet and outlet;

The wheelchair includes a chassis, a seat, a wheelchair back and a lower leg plate, the seat is connected to the chassis in a liftable manner, the wheelchair back and the lower leg plate each have a first end and a second end, so The first end of the backrest of the wheelchair and the first end of the lower leg plate are rotatably connected to opposite sides of the seat. The wheelchair has a chair-shaped form, a bed-shaped form, and an in-out form. In the in-out form, the chair The seat, the wheelchair backrest and the lower leg plate are all higher than the bed body;

The process of combining the wheelchair with the bed body includes: a bed preparation phase, a moving bed phase, and a combination phase;

During the bed preparation stage, the seat is raised, the second end of the wheelchair backrest is rotated downward, and the second end of the lower leg plate is rotated upward, so that the wheelchair is adjusted from the chair-shaped form to the in-out form;

In the stage of moving into the bed, the wheelchair in the in and out form is moved into the containing cavity from the entrance and exit;

In the joining phase, the chair seat is lowered, and the chair seat, the wheelchair backrest and the lower leg plate are joined to the bed body, so that the wheelchair is adjusted from the in and out form to the bed-shaped form.
The method for combining a wheelchair bed according to claim 1, wherein in the in and out configuration, the second end of the wheelchair backrest and the second end of the lower leg plate are both higher than the seat; The second end of the wheelchair backrest rotates downward, and the second end of the lower leg plate rotates downward so that the wheelchair backrest and the lower leg plate are engaged with the bed body.
The method for combining a wheelchair bed according to claim 1 or 2, wherein the wheelchair comprises two armrests and an armrest lifting device, the two armrests are located on opposite sides of the seat, and the armrests are lifted and lowered. A device connects the seat and the armrests on both sides to control the armrests on both sides to flip;

In the bed preparation stage and the moving bed stage, the handrails remain stationary; in the combining stage, the two handrails rotate toward a horizontal state to be engaged with the bed body.
The method for combining a wheelchair bed according to any one of claims 1-3, wherein the wheelchair comprises: a footrest, the footrest has a first end and a second end, and the footrest The first end of the plate is rotatably connected to the second end of the lower leg plate, and when the chair-shaped form is turned into the in-out form, the second end of the footrest is turned in a downward direction.
The method for combining a wheelchair bed according to claim 4, wherein in the chair-shaped configuration, the bottom surface of the footrest can be adjusted to be in line with the chassis through the lifting of the seat and the rotation of the lower leg plate. The touch points are even.
The method for combining a wheelchair bed according to any one of claims 1 to 5, wherein the chassis is driven by driving wheels and steering wheels to touch the ground, and the chassis is also provided with a wheel outside the driving wheels. A traveling motor, the traveling motor is a brushless motor connected to the driving wheel.
The method for combining a wheelchair bed according to any one of claims 1-6, wherein the seat is provided with an assembly opening, and the wheelchair further includes an upper assembly rotatably fitted at the assembly opening. The leg plate, the upper leg plate can be rotated to a part located above the seat.
The method for combining a wheelchair bed according to any one of claims 1-7, wherein the accommodating cavity is provided with guide rails on opposite sides, and the wheelchair is provided with guide wheels on opposite sides of the accommodating cavity. In the bed stage, the guide wheels are fitted on the guide rails so that the wheelchair can be guided into the accommodating cavity.
The method for coupling a wheelchair bed according to claim 8, wherein the guide rails on both sides are formed in an arc shape extending in a direction away from each other at a portion adjacent to the entrance and exit.
The method for combining a wheelchair bed according to claim 3, wherein the bed body includes a bed backrest, the bed backrest angle is adjustable and connected to the bed body, and the bed backrest is located at the The side of the bed body away from the entrance and exit; in the coupling phase, the wheelchair backrest is engaged with the bed backrest, so that the wheelchair backrest and the bed backrest can be adjusted synchronously.
The method for combining a wheelchair bed according to claim 10, wherein a matching portion is provided on the backrest of the bed body, a movable locking part is provided on the backrest of the wheelchair, and the locking part is lifted and lowered with the armrest. The device is connected to move synchronously with the armrest. When the armrest is in a horizontal state, the locking member cooperates with the matching portion, and when the armrest is in a vertical state, the locking member is disengaged from the matching portion.
The method for coupling a wheelchair bed according to claim 11, wherein the locking member is telescopically arranged on the wheelchair back, and the locking member is connected to the armrest lifting device by a wire rope, and the armrest lifting device When the armrest is driven to be horizontal, the wire rope is used to pull the locking member to extend; the wheelchair backrest is also provided with a lock back spring, and when the wire rope is loose, the lock member is reset by the lock back spring.
The method for combining a wheelchair bed according to claim 4, wherein the wheelchair further comprises: a lower leg plate driving member and a foot pedal linkage member, the lower leg plate driving member is connected to the lower leg plate and the chair The seat is used to drive the lower leg plate to rotate, and the foot pedal linkage is respectively connected with the lower leg plate and the chair seat to drive the foot pedal to link when the lower leg plate rotates.
The method for combining a wheelchair bed according to any one of claims 1-13, wherein after the wheelchair is combined with the bed body, the bottom of the wheelchair is flush with the bottom of the chassis, Or the bottom of the wheelchair is supported on the bottom of the chassis.
The method for combining a wheelchair with a bed according to any one of claims 1-14, wherein the wheelchair is provided with an anti-pinch sensor where the wheelchair is combined with the bed.
The method for combining a wheelchair bed according to any one of claims 1-15, wherein a navigation device is provided on the wheelchair, and the navigation device includes at least one of a camera and an ultrasonic sensor, which is used when moving in In the bed stage, the wheelchair is automatically moved into the accommodating cavity through the navigation device.
A method for separating a wheelchair bed, characterized in that the wheelchair bed comprises a bed body and a wheelchair that can be combined and separated;

The bed body includes a bed body, the bed body has an accommodating cavity, and the horizontal side of the accommodating cavity has an inlet and outlet;

The wheelchair includes a chassis, a seat, a wheelchair back and a lower leg plate, the seat is connected to the chassis in a liftable manner, the wheelchair back and the lower leg plate each have a first end and a second end, so The first end of the backrest of the wheelchair and the first end of the lower leg plate are rotatably connected to opposite sides of the seat. The wheelchair has a chair-shaped form, a bed-shaped form, and an in-out form. In the in-out form, the chair The seat, the wheelchair backrest and the lower leg plate are all higher than the bed body;

The process of separating the wheelchair from the bed body includes: preparing stage for getting out of bed, moving out of bed and deforming stage;

In the preparation stage for getting out of bed, raise the seat, and separate the seat, the wheelchair back and the lower leg plate from the bed body, so that the wheelchair is adjusted from the bed-shaped form to the in-out form;

In the stage of moving out of bed, the wheelchair in the in and out form moves out of the containing cavity from the entrance and exit;

In the deformation stage, the chair seat is lowered, the second end of the wheelchair backrest rotates upward, and the second end of the lower leg plate rotates downward, so that the wheelchair is adjusted from the in-and-out configuration to the chair-shaped configuration.
The method for separating a wheelchair bed according to claim 17, wherein, in the in-out configuration, the second end of the wheelchair backrest and the second end of the lower leg plate are higher than the seat.
The method for separating a wheelchair bed according to claim 17 or 18, wherein the wheelchair includes two armrests and an armrest lifting device, the two armrests are located on opposite sides of the seat, and the armrests are lifted and lowered. A device connects the seat and the armrests on both sides to control the armrests on both sides to flip;

In the preparation stage for getting out of the bed, the two handrails rotate toward the vertical state to separate from the bed body; in the stage of moving out of the bed and the deformation stage, the handrails remain stationary.
The method for separating a wheelchair bed according to any one of claims 17-19, wherein the wheelchair comprises: a footrest, the footrest has a first end and a second end, and the footrest The first end of the plate is rotatably connected to the second end of the lower leg plate;

When the bed-shaped form is turned into the in-out form, the second end of the foot board rotates in an upward direction; when the in-out form is turned into a chair-shaped form, the second end of the foot board is turned in a downward direction.