CN112773616A

CN112773616A - Multifunctional wheelchair bed

Info

Publication number: CN112773616A
Application number: CN202110147808.2A
Authority: CN
Inventors: 李威; 李福军
Original assignee: Suzhou Maisijie Intelligent Technology Co ltd
Current assignee: Suzhou Maisijie Intelligent Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-05-11

Abstract

The invention relates to the technical field of nursing instruments and discloses a multifunctional wheelchair bed, which comprises a bed body component, a wheelchair component and a butt joint component; the butt joint component comprises a pair of guide rails arranged below the bed body component opposite to the left side and the right side of the accommodating cavity and rollers arranged on two side edges of the wheelchair component and matched with the guide rails; and/or the butt joint assembly comprises a guide rail arranged at one side edge or two side edges of the bed body assembly and a roller wheel arranged at one side edge or two side edges of the wheelchair assembly and matched with the guide rail, and when the wheelchair assembly is in butt joint with the bed body assembly, the roller wheel is connected in the guide rail in a rolling manner; compared with the prior art, the butt joint assembly is arranged between the bed body assembly and the wheelchair assembly, so that the wheelchair assembly is conveniently butted with the bed body assembly, and the wheels roll in the butt joint process, so that the blocking phenomenon in the butt joint process is reduced; when the butt joint is successful, the position is fixed through the position fixing assembly, so that the condition that the wheelchair assembly moves when a patient lies on the wheelchair bed is prevented, and potential safety hazards are reduced.

Description

Multifunctional wheelchair bed

Technical Field

The invention relates to the technical field of nursing instruments, in particular to a multifunctional wheelchair bed.

Background

The wheelchair bed with the bed-chair separation and combination function generally has two types: a wheelchair bed is characterized in that a bed body is provided with a U-shaped space, a wheelchair is poured from the middle part of a bed tail, and a bed and a chair are combined; in a two-way wheelchair bed, a bed body is provided with a side space, and a wheelchair transversely enters the bed body space from the outer side surface of the bed to realize the combination of the bed and the chair.

In the first mode, a larger space is needed in the tail side area of the bed body for the wheelchair to turn and to pour into or leave the bed body, and the left side and the right side (the width of the bed body is about 1 m) of the entering U-shaped space have different degrees of collision friction with the left side and the right side of the wheelchair, so that a nursing worker cannot observe and operate the wheelchair at a short distance, and the wheelchair is inconvenient to accurately push in and push out; the length direction is deep (the length of the bed body is about 2 meters), and the wheelchair armrests are arranged at the backrest part, so that an operator cannot conveniently push the wheelchair into or out of the bed body manually. And after the wheelchair is pushed into the bed body, the wheelchair is not convenient to fix with the bed body, and the wheelchair can move everywhere, so that potential safety hazards exist.

The wheelchair in the second mode is transversely pushed from the side area to be combined with the bed body, the body of a patient is positioned on the side half part of the wheelchair bed, obvious gaps are formed in the joint of the wheelchair in the middle of the wheelchair bed and the bed body and the mattress, the patient cannot lie in the middle of the bed, the space on the side of the wheelchair bed is small, the movement or posture adjustment of the body of the patient is not facilitated, and the experience of the patient is poor.

Disclosure of Invention

The purpose of the invention is as follows: aiming at the problems in the prior art, the invention provides the multifunctional wheelchair bed, the butt joint assembly is arranged between the bed body assembly and the wheelchair assembly, the butt joint of the wheelchair assembly and the bed body assembly is convenient, and the position can be fixed through the position fixing assembly after the wheelchair assembly and the bed body assembly are successfully butted, so that the condition that the wheelchair assembly moves when a patient lies on the wheelchair bed is prevented, and the potential safety hazard is reduced.

The technical scheme is as follows: the invention provides a multifunctional wheelchair bed, which comprises a bed body component, a wheelchair component and a butt joint component for butt joint of the bed body component and the wheelchair component;

when the wheelchair component is in butt joint with the containing cavity arranged in the middle of the bed body component, the butt joint component comprises a pair of guide rails arranged below the bed body component and opposite to the left side and the right side of the containing cavity, and idler wheels arranged on two side edges of the wheelchair component and matched with the guide rails;

and/or when the wheelchair component is in butt joint from the two sides of the bed body component, the butt joint component comprises a guide rail arranged on one side or two sides of the bed body component and a roller arranged on one side or two sides of the wheelchair component and matched with the guide rail;

when the wheelchair component is in butt joint with the bed body component, the rollers are connected in the guide rails in a rolling mode.

Further, the bed body assembly comprises a bed plate, a bed body support and a plurality of universal wheels, the bed plate is horizontally arranged on the bed body support, the universal wheels are symmetrically and rotatably connected to the bed body support, the accommodating cavity is formed in the middle of the bed plate, the accommodating cavity is opened relative to one side of the bed plate, the other side of the accommodating cavity is closed, and the wheelchair assembly is in butt joint with the bed body assembly through the opening end of one side of the bed plate; the pair of guide rails are symmetrically arranged below the bed plates on two sides of the accommodating cavity and are arranged along one side of the bed plate close to the accommodating cavity.

Furthermore, the bed body assembly comprises a bed plate, a bed body support and a plurality of universal wheels, the bed plate is horizontally arranged on the bed body support, the universal wheels are symmetrically and rotatably connected to the bed body support, and the bed head baffle is rotatably connected to the bed plate; the guide rail is arranged below one side or below the left side and the right side of the bed board and is arranged along the length direction of the bed board.

Furthermore, the edge of one side of the bed board, which is provided with the guide rail, is of an arc-shaped structure.

Further, the guide rail is L-shaped, and the opening end of the guide rail faces the butt joint direction of the wheelchair component.

Furthermore, the position fixing component is a magnetic type fixing component and comprises a pair of direct current sucker electromagnets A arranged below the bed body component and opposite to the left side and the right side of the accommodating cavity and a pair of direct current sucker electromagnets B positioned on the wheelchair component;

and/or the position fixing component comprises a direct current sucker electromagnet A arranged on one side or two sides of the bed body component and a direct current sucker electromagnet B positioned on the wheelchair component;

when the roller rolls to the tail end of the guide rail, the position of the direct current sucker electromagnet A is opposite to the position of the direct current sucker electromagnet B.

Furthermore, the wheelchair component comprises a wheelchair base, a pair of rear wheels, a pair of front wheels, a backrest, a seat cushion, a leg support and foot support and a pair of handrails, wherein the pair of rear wheels and the pair of front wheels are rotatably connected to the wheelchair base, the seat cushion is arranged on the wheelchair base, the backrest is rotatably connected with the seat cushion through a first angle adjuster, the seat cushion is rotatably connected with the leg support and foot support through a second angle adjuster, the handrails are rotatably connected to the backrest, and the pair of rear wheels and the pair of front wheels are provided with driving mechanisms to drive the wheelchair component to move back and forth.

Further, the upper surface of the wheelchair base is further provided with a gravity center adjusting mechanism, the gravity center adjusting mechanism comprises a slide rail supporting plate arranged on the wheelchair base and a pair of slide rails symmetrically arranged on the slide rail supporting plate, and the seat cushion is slidably connected with the slide rails.

Further, still be provided with lifting adjusting mechanism on the wheelchair base, lifting adjusting mechanism includes 4 electric putter, wheelchair base upper surface sets up the wheelchair frame, 4 electric putter's lifter rotate connect in on the wheelchair frame, the gyro wheel interval rotate connect in wheelchair frame side.

Furthermore, the driving mechanism comprises a first driving motor arranged on the pair of rear wheels, a driving gear fixed on an output shaft of the first driving motor, a driven gear fixed on a central shaft of the pair of front wheels, and a chain meshed between the driving gear and the driven gear.

Further, the front wheel is set as an omnidirectional wheel and comprises a roller piece and a wheel main body, wherein the roller piece comprises a roller, a roller bracket and a roller main shaft; the rollers are arranged in a plurality and are fixedly arranged on the wheel main body through the corresponding roller supports; the roller is in a circular truncated cone shape and is rotatably connected to the roller spindle.

Further, the roller pieces are fixedly mounted on the wheel main body at a certain inclination angle with the wheel main body.

Further, the inclination angle is 30~ 60.

Furthermore, a pair of shock absorbers is respectively arranged at the front and the back of the wheelchair base.

Furthermore, a pair of anti-tilting wheels is respectively arranged at the front and the back of the wheelchair base.

Has the advantages that:

1. according to the invention, the butt joint assembly is arranged between the bed body assembly and the wheelchair assembly, so that the butt joint of the wheelchair assembly and the bed body assembly is facilitated, and the position can be fixed through the position fixing assembly after the wheelchair assembly and the bed body assembly are successfully butted, so that the condition that the wheelchair assembly moves when a patient lies on a wheelchair bed is prevented, and the potential safety hazard is reduced.

2. The edge of the bed plate, which is in contact with the accommodating cavity, is arranged to be of an arc-shaped structure, so that when the wheelchair component is combined with the bed body component, the condition that part of the structure on the wheelchair component is clamped with the edge of the bed body component to cause difficult butt joint can be prevented, and the friction force between the wheelchair component and the bed body component can be reduced.

3. According to the invention, the wheels can accurately roll into the guide rails by butting the wheels and the butt joint device of the guide rails, so that the friction force can be reduced when the wheelchair component is butted with the bed body component, and the butt joint is convenient for a caregiver or a patient to butt joint by himself.

4. According to the invention, the wheelchair component and the bed body component are fixed in position through the electromagnet, after the wheelchair is butted with the bed body, the electromagnet is electrified, the wheelchair is fixed on the bed body component in a magnetic attraction manner, and the wheelchair component cannot move in the guide rail when a patient lies on the wheelchair bed, so that the safety is high.

5. The angle adjustment between the seat cushion and the backrest and between the seat cushion and the leg support is realized through the first angle adjuster and the second angle adjuster, and when the wheelchair is actually installed and used, the first angle adjuster and the second angle adjuster are driven by the driving motor to automatically realize the operation that the wheelchair is laid flat into a bed body or the bed body is folded into the wheelchair, so that the wheelchair component and the bed body component can be conveniently combined and separated by a patient.

6. According to the wheelchair, the gravity center adjusting mechanism is arranged on the wheelchair base, so that after the wheelchair component is in butt joint with the bed body component, the position of the seat cushion on the wheelchair component can be adjusted to be in a balanced state through the sliding rail according to the weight and the gravity center position of a patient on the wheelchair, or after the wheelchair is separated from the bed body, the front-back distance of the seat cushion on the wheelchair base is adjusted according to the actual weight and the gravity center position of the patient, and the condition that the wheelchair is turned over is prevented.

7. According to the invention, the lifting adjusting mechanism is arranged on the wheelchair base, the wheelchair angle adjustment and the height adjustment of the wheelchair in butt joint with the bed body are realized through the lifting adjusting mechanism, the wheelchair can be in butt joint with bed body components with different heights through the lifting adjusting mechanism, and the heights of 4 electric push rods are adjusted according to actual requirements until the rollers are matched with the guide rails. The height of the whole wheelchair can be adjusted through the lifting adjusting mechanism, and the gravity center unbalance condition when the wheelchair climbs can be caused by adjusting the heights of the two electric push rods at the front end or the two push rods at the back. When the wheelchair climbs a slope, the height of the wheelchair can be adjusted upwards through the two electric push rods at the rear side, so that the gravity center of the wheelchair can move forwards, and the phenomenon of overturning can not occur. When the wheelchair is in downhill, the height of the wheelchair can be adjusted through the two electric push rods on the front side, the gravity center of the wheelchair moves backwards, and the phenomenon of overturning is avoided.

8. According to the invention, the hub driving motor is arranged at the rear wheel position of the wheelchair, and the front wheel and the rear wheel are driven simultaneously through the chain wheel assembly.

9. According to the invention, the omnidirectional wheels are arranged on the front wheels, so that the climbing force (or the ground grabbing force) is better; the wheel can be smooth go on comparatively complicated road surface (for example mud face, sandy beach, rugged road surface etc.), and roller spare is whole forms 30~60 angles with vertical face in the installation, and the roller can rotate round bearing self simultaneously, adopts such combination mode, can make the wheel have level and two kinds of movements of wheel rotation. The wheel adopting the design scheme can meet three running modes of transverse running, longitudinal running and self-rotation of the wheel under the control of the control motor.

Drawings

FIG. 1 is a schematic view of the overall structure of a wheelchair bed according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the overall structure of the wheelchair bed of embodiment 2 of the present invention when combined;

FIG. 3 is a schematic view of the overall structure of the wheelchair bed of embodiment 3 of the present invention when combined;

FIG. 4 is a schematic view of the overall structure of the bed assembly in example 1 of the present invention;

FIG. 5 is a schematic view showing the entire structure of a wheelchair component in embodiment 1 of the invention;

FIG. 6 is a schematic structural view of a base of a wheelchair in embodiment 1 of the present invention;

FIG. 7 is a schematic structural view of a wheelchair drive mechanism according to embodiment 1 of the present invention;

FIG. 8 is a schematic view of the structure of a backrest, a seat cushion, leg rests and leg rests of a wheelchair in accordance with embodiment 1 of the present invention;

FIG. 9 is a schematic view of an installation structure of an electromagnet on a wheelchair component according to the present invention;

FIG. 10 is a functional schematic view of a center of gravity adjustment mechanism on the wheelchair base of the wheelchair assembly of the present invention;

FIG. 11 is a schematic view of the wheelchair base ascent and descent adjustment mechanism of the wheelchair assembly of the present invention;

FIG. 12 is a schematic view of the overall construction of an omni wheel used on the wheelchair assembly of the present invention;

fig. 13 is a perspective view of the construction of the roller member of the present invention.

Wherein, 1-bed component, 101-containing cavity, 102-bed board, 103-bed head baffle, 104-bed support, 105-universal wheel, 106-arc structure, 107-guardrail, 2-wheelchair component, 201-wheelchair base, 202-rear wheel, 203-front wheel, 204-backrest, 205-seat cushion, 206-leg support and foot support, 207-armrest, 208-first angle adjuster, 209-second angle adjuster, 210-slide rail support plate, 211-slide rail, 212-slide rail base groove, 213-slide bar, 214-electric push rod, 215-wheelchair frame, 216-first driving motor, 217-driving gear, 218-driven gear, 219-chain, 220-shock absorber, 221-anti-roll wheel, 222-second driving motor, 3-butt joint component, 301-guide rail, 302-roller, 4-position fixing component, 401-direct current sucker electromagnet A, 402-direct current sucker electromagnet B, 5-gravity center adjusting mechanism, 6-lifting adjusting mechanism, 7-roller component, 8-wheel main body, 701-roller, 702-roller bracket, 703-roller spindle and 704-bearing.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Embodiment 1:

the invention discloses a multifunctional wheelchair bed, which comprises a bed body component 1, a wheelchair component 2, a butt joint component 3 for butt joint of the bed body component 1 and the wheelchair component 2, and a position fixing component 3 for the bed body component 1 and the wheelchair component 2.

The wheelchair module 2 is docked from a receiving cavity 101 provided in the middle of the bed module 1, and referring to fig. 1, a docking assembly 3 is provided in the middle of the bed module 1 and on the wheelchair module 2.

The docking assembly 3 comprises a pair of guide rails 301 arranged below the bed body assembly 1 right opposite to the left side and the right side of the accommodating cavity 101 and rollers 302 arranged at two sides of the wheelchair assembly 2 and matched with the pair of guide rails 301 below the bed body assembly 1 at two sides of the accommodating cavity 101, and when the wheelchair assembly 2 is docked with the bed body assembly 1, the rollers 302 are connected in the guide rails 301 in a rolling manner.

The position fixing component 4 is arranged between the bed body component 1 and the wheelchair component 2, and when the wheelchair component 2 is in butt joint with the bed body component 1, the wheelchair component 2 is fixed on the bed body component 1 through the position fixing component 4.

In the embodiment, the bed body assembly 1 comprises a bed plate 102, a bed head baffle 103, a bed body support 104 and universal wheels 105, wherein the bed plate 102 is horizontally arranged on the bed body support 104, the universal wheels 105 are arranged in a plurality and symmetrically and rotatably connected to the bed body support 104, an accommodating cavity 101 is formed in the middle of the bed plate 102, the width of the accommodating cavity 101 is matched with that of the wheelchair assembly 2, the accommodating cavity 101 in the middle of the bed plate 102 is open at one side relative to the bed plate 102, the other side is closed, the wheelchair assembly 2 is butted with the bed body assembly 1 through the open end at one side of the bed plate 102, and the bed head baffle 103; the guide rails 301 are symmetrically arranged below the bed plate 102 on both sides of the accommodating cavity 101 and are arranged along one side of the bed plate 102 close to the accommodating cavity 101. See fig. 4.

In order to facilitate the butt joint of the wheelchair component 2 and the bed body component 1, an arc-shaped structure is arranged at the edge of one side of the bed plate 102 provided with the guide rail 301. Therefore, when the wheelchair component 2 is butted to the bed body component 1, the wheelchair component can enter the middle accommodating cavity 101 along the road and cannot be hooked by the edge, and the blocking phenomenon is caused.

In this embodiment, the guide rail 301 is "L" shaped with its open end facing in the direction of docking of the wheelchair components 2.

In this embodiment, the position fixing component 4 is a magnetic type fixing component, which includes a pair of dc chuck electromagnets a401 disposed below the bed body component 1 right opposite to the left and right sides of the accommodating cavity 101 and a pair of dc chuck electromagnets B402 disposed on the wheelchair component 2, and when the roller 302 on the wheelchair component 2 rolls to the end of the guide rail 301, the positions of the dc chuck electromagnets a401 and the dc chuck electromagnets B402 on the wheelchair component 2 are right opposite, see fig. 9. Direct current sucking disc electro-magnet A401 and direct current sucking disc electro-magnet B402 all are connected with the power, after wheelchair subassembly 2 and bed body subassembly 1 butt joint are accomplished, direct current sucking disc electro-magnet A401, direct current sucking disc electro-magnet B402 circular telegram, adsorb each other, accomplish the fixed of bed body subassembly 1 and wheelchair subassembly 2, when needs part wheelchair subassembly 2 and bed body subassembly 1, direct current sucking disc electro-magnet A401, direct current sucking disc electro-magnet B402 outage, there is not the adsorption affinity between the two, wheelchair subassembly 2 and the separation of bed body subassembly 1.

In this embodiment, the wheelchair assembly 2 includes a wheelchair base 201, a pair of rear wheels 202, a pair of front wheels 203, a backrest 204, a seat cushion 205, a pair of leg supports and foot supports 206, and a pair of armrests 207, wherein the pair of rear wheels 202 and the pair of front wheels 203 are both rotatably connected to the wheelchair base 201, the seat cushion 205 is disposed on the wheelchair base 201, the backrest 204 and the seat cushion 205 are rotatably connected through a first recliner 208, the seat cushion 205 and the leg supports and foot supports 206 are rotatably connected through a second recliner 209, the first recliner 208 and the second recliner 209 are respectively connected to a third driving motor, and the first recliner 208 and the second recliner 209 are driven by the third driving motor to adjust the angles of the backrest 204 and the leg supports and foot supports 206. The armrest 207 is rotatably connected to the backrest 204, and a driving mechanism is provided on the pair of rear wheels 202 and the pair of front wheels 203 to drive the wheelchair assembly 2 to move forward and backward. The driving mechanism includes a first driving motor 216 disposed on the pair of rear wheels 202, a driving gear 217 fixed to an output shaft of the first driving motor 216, a driven gear 218 fixed to a central shaft of the pair of front wheels 203, and a chain 219 engaged between the driving gear 217 and the driven gear 218, wherein the first driving motor 216 drives the driving gear 217 to rotate the driven gear 218 through the chain 219. Thus, the entire wheelchair assembly 2 only requires a drive mechanism on the rear wheels 202 and synchronous movement of the front and rear wheels is ensured.

The upper surface of the wheelchair base 201 is further provided with a gravity center adjusting mechanism 5, the gravity center adjusting mechanism 5 comprises a slide rail support plate 210 arranged on the wheelchair base 201 and a pair of slide rails 211 symmetrically arranged on the slide rail support plate 210, the slide rails 211 comprise slide rail base grooves 212 fixed on the wheelchair base 201 and slide bars 212 fixed on the lower surface of the seat cushion 205, and the slide bars 212 are slidably connected in the slide rail base grooves 212. The slide rail 211 is provided with a second driving motor 222. In practical use, the second driving motor 222 can control the slide bar 212 of the slide rail 211 to drive the seat cushion 205 to move, the distance that the current seat cushion 205 needs to move is determined according to the center of gravity, and the second driving motor 222 can control the slide rail 211 to drive the seat cushion 205 to move to meet the requirement.

The wheelchair base 201 is further provided with a lifting adjusting mechanism 6, the lifting adjusting mechanism 6 comprises 4 electric push rods 214, a wheelchair frame 215 is arranged on the upper surface of the wheelchair base 201, the lifting rods of the 4 electric push rods 214 are rotatably connected to the wheelchair frame 215, and the rollers 302 are rotatably connected to the side edges of the wheelchair frame 215 at intervals. The slide rail support plate 210 of the center of gravity adjusting mechanism 5 is provided on the wheelchair frame 215, and the seat cushion 205 is slidably connected to the pair of slide rails 211 of the slide rail support plate 210.

The wheelchair base 201 is also provided with a pair of shock absorbers 220 at the front and rear thereof, respectively. The vibration of the wheelchair during traveling can be reduced by the damper 220, and the vibration can be reduced when the wheelchair travels on a complex road surface. The front end and the rear end of the wheelchair base 201 are respectively provided with a pair of anti-tilting wheels 221, the anti-tilting wheels 221 are arranged on the wheelchair component 2 through supporting rods, the anti-tilting wheels 221 are rotatably connected to the supporting rods, and when the wheelchair component 2 moves forwards or backwards on a road surface, the front and rear anti-tilting wheels 221 of the wheelchair base 201 are respectively contacted with the ground.

In order to facilitate the wheelchair assembly 2 to rotate in situ at a small angle or to facilitate the wheelchair assembly 2 to climb and go on a complex road, in the present embodiment, the pair of front wheels 203 of the wheelchair assembly 2 are provided as omni-directional wheels, and include a roller member 7 and a wheel main body 8, and the roller member 7 includes a roller 701, a roller bracket 702 and a roller main shaft 703; a plurality of rollers 701 are arranged and are fixedly arranged on the wheel main body 8 through corresponding roller brackets 702; the rollers 701 are truncated cone shaped (wheels with large sides and small sides) and are rotatably attached to a roller spindle 703. A pair of bearings 704 are fixedly provided at both ends inside the roller 701, and a roller main shaft 703 is fixedly provided at one end to the roller holder 702 and at the other end to the inside of the bearings 704, so that the roller 701 is rotatably provided to the roller holder 702.

In the present embodiment, the number of roller members 7 is 12 in total, and each roller member is fixedly attached to the wheel main body 8 at an inclination angle of 45 ° with respect to the wheel main body 8.

The omnidirectional wheel can run on various complex road surfaces and is smooth and unobstructed; meanwhile, the wheel can rotate transversely, longitudinally and automatically, various driving modes of the wheel are met, and small-angle rotation of the wheel is achieved.

Embodiment 2:

the difference between this embodiment and embodiment 1 lies in that a docking assembly 3 is disposed at one side of a bed assembly 1, an accommodating cavity 101 is not disposed at the middle position of the bed assembly 1, the bed assembly 1 is docked with a wheelchair assembly 2 on the left side or the right side, the docking assembly 3 includes a guide rail 301 disposed on one side of the bed assembly 1 and a roller 302 disposed on one side of the wheelchair assembly 2 and matched with the guide rail 301, the guide rail 301 extends along the length direction of the bed assembly 1, the guide rail 301 is of an "L" type structure, the opening end of the guide rail faces the outside of the bed assembly 1, and when the wheelchair assembly 2 is docked with the bed assembly 1 on the left side or the right side, the roller 302 is connected in.

Other structures of this embodiment are the same as those of embodiment 1, and are not described herein.

Embodiment 3:

the difference between this embodiment and embodiment 1 lies in that, the butt joint components 3 are respectively disposed on two side edges of the bed body component 1, the accommodating cavity 101 is not disposed in the middle position of the bed body component 1, the bed body component 1 and the wheelchair component 2 are butted at the left side and/or the right side, the left side and the right side of the bed body component 1 can be butted with one wheelchair component 2 or one wheelchair component 2 at one side thereof, the butt joint components 3 include guide rails 301 disposed on the left and right sides of the bed body component 1 and rollers 302 disposed on one side of the wheelchair component 2 and matched with the guide rails 301, the guide rails 301 extend along the length direction of the bed body component 1, the guide rails 301 are of an "L" type structure, the opening ends of the guide rails face the outside of the bed body component 1, and when the wheelchair component 2 is butted with the left side.

The working principle is as follows:

1. the wheelchair component 2 is butted with the bed body component: the rollers 302 on the side of the wheelchair component 2 face the guide rails 301, when the height of the wheelchair component 2 is not matched with the height of the bed component 1, the height of the whole wheelchair component 2 is adjusted through the lifting adjusting mechanism 6 on the wheelchair component 2 until the height is adjusted to meet the height position of the bed component 1, the wheelchair component 2 rolls along the direction of the guide rails 301 until the docking of the wheelchair component 2 and the bed component is completed, the backrest 204, the seat cushion 205 and the leg support and foot support 206 of the wheelchair component 2 are driven to be leveled through the first angle adjuster 208 and the third driving motor on the second angle adjuster 209 after the docking is completed, and the second driving motor 222 on the slide rails 211 is controlled to drive the seat cushion 205 to slide on the slide rails 211 through the gravity center adjusting mechanism 5 in the leveling process until the gravity center is suitable. When the gravity center is adjusted and the backrest 204, the seat cushion 205 and the leg support and foot support 206 are laid flat, the direct current sucker electromagnet A401 and the direct current sucker electromagnet B402 are electrified, the direct current sucker electromagnet B402 and the direct current sucker electromagnet A401 are adsorbed, and the wheelchair component 2 is fixed on the bed body component 1.

2. When the wheelchair assembly 2 is used alone, the driving gear 217 is driven by the first driving motor 216 to drive the driven gear 218 to rotate through the chain 219, and the whole wheelchair assembly 2 only needs to be provided with a driving mechanism on the rear wheel 202 and can ensure the synchronous motion of the front wheel and the rear wheel. When the wheelchair assembly 2 is ascending, the rear side of the wheelchair assembly 2 is raised too high by the pair of electric push rods 214 on the wheelchair assembly 2, which are positioned at the rear side, so that the whole gravity center of the wheelchair assembly 2 moves forward to prevent the wheelchair assembly from rolling over. When the wheelchair assembly 2 is descending downhill, the front side of the wheelchair assembly 2 is raised too high by a pair of electric push rods 214 on the wheelchair assembly 2 located at the front side, so that the entire center of gravity of the wheelchair assembly 2 is moved backward, preventing the wheelchair assembly 2 from rolling over. When a patient needs to get on or off the wheelchair component 2, the whole wheelchair frame 215 can be descended through the lifting adjusting mechanism 6, so that the patient can get on or off conveniently, and the safety risk is reduced.

The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A multifunctional wheelchair bed is characterized by comprising a bed body component (1), a wheelchair component (2) and a butt joint component (3) for butt joint of the bed body component and the wheelchair component; the wheelchair bed also comprises a position fixing component (4) for fixing the bed body component (1) and the wheelchair component (2);

when the wheelchair component (2) is in butt joint with the containing cavity (101) arranged in the middle of the bed body component (1), the butt joint component (3) comprises a pair of guide rails (301) arranged below the bed body component (1) and opposite to the left side and the right side of the containing cavity (101) and rollers (302) arranged on two side edges of the wheelchair component (2) and matched with the guide rails (301);

and/or when the wheelchair component (2) is butted from the two sides of the bed component (1), the butt joint component (3) comprises a guide rail (301) arranged on one side or two sides of the bed component (1) and a roller (302) arranged on one side or two sides of the wheelchair component (2) and matched with the guide rail (301);

when the wheelchair component (2) is in butt joint with the bed body component (1), the rollers (302) are connected in the guide rails (301) in a rolling mode.

2. The multifunctional wheelchair bed of claim 1, wherein the position fixing component (4) is a magnetic type fixing component, which comprises a pair of dc suction cup electromagnets a (401) arranged below the bed body component (1) facing the left and right sides of the accommodating cavity (101) and a pair of dc suction cup electromagnets B (402) arranged on the wheelchair component (2);

and/or the position fixing component (4) comprises a direct current sucker electromagnet A (401) arranged on one side or two sides of the bed body component (1) and a direct current sucker electromagnet B (402) positioned on the wheelchair component (1);

when the roller (302) rolls to the tail end of the guide rail (301), the position of the direct current sucker electromagnet A (401) is opposite to the position of the direct current sucker electromagnet B (402).

3. The multifunctional wheelchair bed as claimed in claim 1, wherein the bed body assembly (1) comprises a bed plate (102), a bed body support (104) and universal wheels (105), the bed plate (102) is horizontally arranged on the bed body support (104), the universal wheels (105) are provided in a plurality and symmetrically and rotatably connected to the bed body support (104), the accommodating cavity (101) is formed in the middle of the bed plate (102), the accommodating cavity is open on one side relative to the bed plate (102) and closed on the other side, and the wheelchair assembly (2) is butted with the bed body assembly (1) through the open end on one side of the bed plate (102); the pair of guide rails (302) are symmetrically arranged below the bed plate (102) on two sides of the accommodating cavity (101) and arranged along one side of the bed plate (102) close to the accommodating cavity (101).

4. The multifunctional wheelchair bed of claim 1, wherein the bed assembly (1) comprises a bed plate (102), a bed support (104) and universal wheels (105), the bed plate (102) is horizontally arranged on the bed support (104), the universal wheels (105) are arranged in a plurality and symmetrically and rotatably connected to the bed support (104), and the bedside baffle (103) is rotatably connected to the bed plate (102); the guide rails (301) are arranged below one side or below the left side and the right side of the bed plate (102) and are arranged along the length direction of the bed plate (102).

5. The multi-function wheelchair bed of claim 1 wherein the wheelchair assembly (2) comprises a wheelchair base (201), a pair of rear wheels (202), a pair of front wheels (203), a backrest (204), a seat cushion (205), a leg rest and foot rest (206), and a pair of armrests (207), the pair of rear wheels (202) and the pair of front wheels (203) both being rotatably connected to the wheelchair base (201), the seat cushion (205) is arranged on the wheelchair base (201), the backrest (204) is rotationally connected with the seat cushion (205) through a first angle adjuster (208), the seat cushion (205) is rotatably connected with the leg support and foot support (206) through a second angle adjuster (209), the armrest (207) is rotatably connected to the backrest (204), the pair of rear wheels (202) and the pair of front wheels (203) are provided with driving mechanisms, and the wheelchair component (2) is driven to move back and forth.

6. The multifunctional wheelchair bed as claimed in claim 5, wherein the wheelchair base (201) is further provided with a center of gravity adjusting mechanism (5) on the upper surface, the center of gravity adjusting mechanism (5) comprises a slide rail support plate (210) arranged on the wheelchair base, a pair of slide rails (211) symmetrically arranged on the slide rail support plate (210), and the seat cushion (205) is slidably connected to the slide rails (211).

7. The multifunctional wheelchair bed of claim 5, wherein a lifting adjusting mechanism (6) is further arranged on the wheelchair base (201), the lifting adjusting mechanism (6) comprises 4 electric push rods (214), a wheelchair frame (215) is arranged on the upper surface of the wheelchair base (201), the 4 electric push rods (214) are rotatably connected to the wheelchair frame (215), and the rollers (302) are rotatably connected to the side edges of the wheelchair frame (215) at intervals.

8. The multi-function wheelchair bed of claim 5, wherein the driving mechanism comprises a first driving motor (216) provided to the pair of rear wheels (202), a driving gear (217) fixed to an output shaft of the first driving motor (216), a driven gear (218) fixed to a central shaft of the pair of front wheels (203), and a chain (219) engaged between the driving gear (217) and the driven gear (218).

9. The multi-function wheelchair bed as claimed in any of claims 5 to 8, wherein the front wheels (203) are provided as omni-wheels, comprising a roller member (7) and a wheel body (8), the roller member (7) comprising a roller (701), a roller support (702) and a roller spindle (703); a plurality of rollers (701) are arranged and are fixedly arranged on the wheel main body (8) through corresponding roller brackets (702); the roller (701) is in a shape of a circular truncated cone, and is rotatably connected to the roller spindle (703).

10. The multi-function wheelchair bed as claimed in claim 9, wherein the roller members (7) are each fixedly mounted on the wheel body (8) at an angle of inclination of 30-60 ° to the wheel body (8).