CN211356355U

CN211356355U - Manual-automatic integrated wheelchair bed

Info

Publication number: CN211356355U
Application number: CN201921112732.4U
Authority: CN
Inventors: 徐兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-08-28
Anticipated expiration: 2029-07-16

Abstract

The utility model belongs to the technical field of medical sick bed, especially, be a manual-automatic wheelchair bed, including frame subassembly, plate body subassembly, adjusting part and two drive assembly all set up on the frame subassembly, adjusting part is connected with the plate body subassembly. The utility model discloses a carry out the improvement of structure to current sick bed, divide into one section original fixed bed board three-section, both divide into the fixed plate, driving plate and regulating plate, wherein driving plate and regulating plate can carry out angle modulation, make patient's shank kickup, also can the kickdown, can be in the state of keeping flat equally, thereby can guarantee patient's comfort level, especially the injured patient of shank, place the foot on the regulating plate, drive the shank through the regulating plate and carry out kickup or kickdown, thereby make patient more comfortable when using the sick bed, there is certain help to patient's recovery equally.

Description

Manual-automatic integrated wheelchair bed

Technical Field

The utility model relates to the technical field of medical sickbeds, in particular to a manual-automatic wheelchair bed.

Background

The sickbed can also be called as a medical bed, a nursing bed and the like, is a sickbed used by a patient during rest, and has various large hospitals, rural health homes, community health service centers and the like on main use occasions, and in consideration of the activity needs of the patient, the prior sickbed bed plate is mainly divided into two sections, one section is fixed on the sickbed, the other section can be adjusted in angle, and the angle-adjustable bed plate is positioned at the back of the patient, so that the patient can sit on the sickbed, and the back can lean against the bed plate, thereby keeping the stability and the comfort of the body, but the prior sickbed still has the following defects when in use:

when a patient sits on a sickbed, due to the structural design of the sickbed, the lower half part can only be kept in a flat state, or the leg part can be bent by the self-strength, but when the leg part of the patient is injured and cannot be bent, the patient feels uncomfortable, and the recovery of the patient is not facilitated.

Disclosure of Invention

Technical problem to be solved

The utility model provides a manual-automatic wheelchair bed, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a manual-automatic integrated wheelchair bed comprises a frame assembly, a plate assembly, an adjusting assembly and two driving assemblies.

The plate body assembly, the adjusting assembly and the two driving assemblies are all arranged on the frame assembly, the adjusting assembly is connected with the plate body assembly and used for driving the plate body assembly to adjust, the adjusting assembly is connected with the two driving assemblies, and the two driving assemblies are used for driving the adjusting assembly to work.

The frame subassembly includes the chassis, the one end fixed mounting of chassis has the apron, the top symmetry fixed mounting of chassis has four connecting blocks, per two the equal fixed mounting ejector pin in one side that the connecting block is relative, two the one end fixed mounting of ejector pin has the backplate, the front of chassis and the equal fixed mounting in the back have universal auto-lock wheel and side guard plate, the inside fixed mounting of chassis has two mounting panels.

The plate body subassembly includes mainboard, fixed plate, driving plate and regulating plate, the mainboard is rotated through the top of round pin axle with two ejector pins and is connected, the bottom of fixed plate and the top fixed connection of two ejector pins, one side of driving plate is rotated through the round pin axle and is connected with one side of fixed plate, the opposite side of driving plate is rotated through the round pin axle and is connected with one side of regulating plate.

As a preferred technical scheme of the utility model, the adjusting part includes the first connecting plate fixed with one of them drive assembly, the one end of first connecting plate is connected with two head rods, two through the round pin axle rotation be connected with the mounting through the round pin rotation between the one side that the head rod is relative, the one end of mounting and the back fixed connection of mainboard, fixed mounting has the stiffener on the mounting, the one end of stiffener and the back fixed connection of mainboard.

As a preferred technical scheme of the utility model, the mounting includes two stock and fixes the extension board at two stock tops, two the head rod rotates with two stock through the round pin axle to be connected, the top at the extension board is fixed to the stiffener.

As a preferred technical scheme of the utility model, adjusting part still includes the second connecting plate fixed with another drive assembly and sets up the axis of rotation between two ejector pins, the one end of second connecting plate is rotated through the round pin axle and is connected with the second connecting rod, the both ends of axis of rotation all are rotated through bearing and corresponding ejector pin and are connected, the one end of second connecting rod is rotated through round pin axle and axis of rotation and is connected, the fixed surface of axis of rotation installs the connecting piece, the one end of connecting piece and the back fixed connection of driving plate, rotate through the round pin axle on the connecting piece and be connected with two third connecting rods, two the one end of third connecting rod is rotated through the round pin axle and is connected with two fourth connecting rods, two the back of round pin axle and regulating plate is passed through to the one end of fourth connecting rod.

As a preferred technical scheme of the utility model, the connecting piece includes the sleeve pipe and fixes two L type poles on the sleeve pipe surface, the surface and the sheathed tube inner wall fixed connection of axis of rotation, the one end of two L type poles all with the back fixed connection of driving plate, the one end of two third connecting rods is passed through the round pin axle and is connected with two L type pole rotations.

As a preferred technical scheme of the utility model, the driving assembly comprises a fixed seat and a worm gear box, the fixed seat and the worm gear box are respectively fixed on two mounting plates, a fixed cylinder is fixedly arranged in the fixed seat, one end of the fixed cylinder is fixedly connected with one side of the worm gear box and is communicated with the inside of the worm gear box, a worm gear and a worm which are meshed with each other are fixedly arranged in the worm gear box, a lead screw is arranged in the fixed cylinder, one end of the lead screw penetrates through the worm gear box and is fixedly connected with the worm gear in the worm gear box, an adjusting column is connected with the upper thread of the lead screw, a sliding tube is fixedly arranged in the fixed cylinder, one end of the adjusting column penetrates through the sliding tube and is slidably connected with the sliding tube, a servo motor is fixedly arranged on one side of the worm gear box, an output shaft of the servo motor is fixedly connected with one end of the worm gear in the worm, the one end fixed mounting that the lead screw runs through turbine worm case has the spliced pole, the one end of spliced pole runs through the backplate and fixed mounting has the turning handle.

As a preferred technical scheme of the utility model, the part that the spliced pole runs through the backplate passes through bearing and backplate fixed connection.

As an optimal technical scheme of the utility model, two the one end of adjusting the post respectively with first connecting plate and second connecting plate fixed connection.

(III) advantageous effects

Compared with the prior art, the utility model provides a manual-automatic wheelchair bed possesses following beneficial effect:

1. this manual-automatic wheelchair bed, carry out the improvement of structure through the sick bed to current, divide into one section original fixed bed board into the three-section, both divide into the fixed plate, driving plate and regulating plate, wherein driving plate and regulating plate can carry out angle modulation, make patient's shank kickup, also can the kickdown, the state of keeping flat equally, thereby can guarantee patient's comfort level, especially shank injured patient, place the regulating plate with the foot on, drive the shank through the regulating plate and make progress upwards or kickdown, thereby more comfortable when making the patient use the sick bed, there is certain help to patient's recovery equally.

2. This manual-automatic wheelchair bed through setting up adjusting part and drive assembly, relies on adjusting part to carry out the angle modulation to the plate body subassembly, provides power for adjusting part's work through drive assembly to the convenience carries out the angle modulation to the plate body subassembly, and operating procedure is simple reasonable, and drive assembly exists also can be through manual work through electric power work, like this in the in-service use process, has strengthened the practicality, also can use under the power failure state.

Drawings

Fig. 1 is a front view of the three-dimensional structure of the present invention;

FIG. 2 is a rear view of the three-dimensional structure of the present invention;

fig. 3 is a bottom view of the three-dimensional structure of the present invention;

FIG. 4 is an enlarged view of the structure A in FIG. 2 according to the present invention;

FIG. 5 is an enlarged view of the structure B in FIG. 3 according to the present invention;

fig. 6 is a perspective view of the driving assembly of the present invention;

fig. 7 is a perspective view of the internal structure of the fixing cylinder of the present invention.

In the figure: 1. a frame assembly; 101. a chassis; 102. a front guard plate; 103. connecting blocks; 104. a top rod; 105. a rear guard plate; 106. a universal self-locking wheel; 107. a side guard plate; 108. mounting a plate; 2. a plate body assembly; 201. a main board; 202. a fixing plate; 203. a drive plate; 204. an adjusting plate; 3. an adjustment assembly; 301. a first connecting plate; 302. a first connecting rod; 303. a fixing member; 304. a reinforcing bar; 305. a second connecting plate; 306. a rotating shaft; 307. a second connecting rod; 308. a connecting member; 309. a third connecting rod; 310. a fourth connecting rod; 4. a drive assembly; 401. a fixed seat; 402. a worm gear box; 403. a fixed cylinder; 404. a screw rod; 405. an adjustment column; 406. a slide pipe; 407. a servo motor; 408. connecting columns; 409. and (7) rotating a handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-7, the present invention provides the following technical solutions: a manual-automatic integrated wheelchair bed comprises a frame assembly 1, a plate body assembly 2, an adjusting assembly 3 and two driving assemblies 4.

Plate body subassembly 2, adjusting part 3 and two drive assembly 4 all set up on frame subassembly 1, and adjusting part 3 is connected with plate body subassembly 2, and adjusting part 3 is used for driving plate body subassembly 2 to adjust, and adjusting part 3 is connected with two drive assembly 4, and two drive assembly 4 are used for driving adjusting part 3 work.

The frame assembly 1 comprises a chassis 101, a front guard plate 102 is fixedly mounted at one end of the chassis 101, four connecting blocks 103 are symmetrically and fixedly mounted at the top of the chassis 101, ejector rods 104 are fixedly mounted on one sides of every two connecting blocks 103, a rear guard plate 105 is fixedly mounted at one ends of the two ejector rods 104, universal self-locking wheels 106 and side guard plates 107 are fixedly mounted on the front and the back of the chassis 101, and two mounting plates 108 are fixedly mounted inside the chassis 101.

The plate body assembly 2 comprises a main plate 201, a fixing plate 202, a driving plate 203 and an adjusting plate 204, the main plate 201 is rotatably connected with the tops of the two ejector rods 104 through a pin shaft, the bottom of the fixing plate 202 is fixedly connected with the tops of the two ejector rods 104, one side of the driving plate 203 is rotatably connected with one side of the fixing plate 202 through a pin shaft, and the other side of the driving plate 203 is rotatably connected with one side of the adjusting plate 204 through a pin shaft.

In the embodiment, the universal self-locking wheel 106 can be used for pushing the utility model to move, so that the patient on the plate body component 2 can be conveniently pushed to move; the front guard plate 102, the rear guard plate 105 and the side guard plate 107 are designed to prevent rolling down from the panel assembly 2 or contact injury with the wall surface; drive the work of adjusting part 3 through drive assembly 4 to make adjusting part 3 drive plate body subassembly 2 and adjust, can enough change plate body subassembly 2's angle, thereby it is convenient to provide patient's use, and can provide patient's comfort level, is favorable to patient's recovery.

Specifically, the adjusting assembly 3 includes a first connecting plate 301 fixed to one of the driving assemblies 4, one end of the first connecting plate 301 is rotatably connected to two first connecting rods 302 through a pin, a fixing member 303 is rotatably connected between one opposite sides of the two first connecting rods 302 through a pin, one end of the fixing member 303 is fixedly connected to the back of the main board 201, a reinforcing rod 304 is fixedly mounted on the fixing member 303, and one end of the reinforcing rod 304 is fixedly connected to the back of the main board 201.

In this embodiment, when driving assembly 4 drives first connecting plate 301 and moves along vertically turning right, because mounting 303 is fixed on mainboard 201, and first connecting plate 301 and between mounting 303 rotate and be connected with two head rods 302, consequently, can drive head rod 302 along vertical direction to the left rotation, both drive mainboard 201 along vertical direction to the left rotation, thereby along with first connecting plate 301 along the vertical distance deepening that turns right, mainboard 201 can rotate and keep the level alignment with fixed plate 202, thereby with the recovery of mainboard 201 to the normal position, can drive first connecting plate 301 through driving assembly 4 along vertical movement that turns left equally, with the regulation of rotating of mainboard 201, can make things convenient for mainboard 201 to carry out the angle modulation through the cooperation of driving assembly 4 and adjusting part 3.

Specifically, the fixing member 303 includes two long rods and a support plate fixed on top of the two long rods, the two first connecting rods 302 are rotatably connected with the two long rods through pin shafts, and the reinforcing rods 304 are fixed on top of the support plate.

In this embodiment, the structural strength of the fixing member 303 is ensured.

Concretely, adjusting part 3 still includes second connecting plate 305 fixed with another drive assembly 4 and the axis of rotation 306 of setting between two ejector pins 104, the one end of second connecting plate 305 rotates through the round pin axle and is connected with second connecting rod 307, the both ends of axis of rotation 306 all rotate with corresponding ejector pin 104 through the bearing and are connected, the one end of second connecting rod 307 rotates through round pin axle and axis of rotation 306 and is connected, axis of rotation 306's external fixed surface installs connecting piece 308, the one end of connecting piece 308 and the back fixed connection of driving plate 203, be connected with two third connecting rods 309 through the round pin axle rotation on the connecting piece 308, the one end of two third connecting rods 309 is connected with two fourth connecting rods 310 through the round pin axle rotation, the one end of two fourth connecting rods 310 is connected through the round pin axle and the back of regulating.

In this embodiment, when driving assembly 4 drives second connecting plate 305 along vertically turning right the removal, drive second connecting rod 307 through second connecting plate 305 and rotate right along vertical direction this moment, thereby drive axis of rotation 306 and rotate right, driving plate 203 upwards rotates under the drive of connecting piece 308 this moment, cooperation through third connecting rod 309 and fourth connecting rod 310 is the same, can drive regulating plate 204 translation upwards, make regulating plate 204 be located the top of driving plate 203, can make patient's shank kickup, can drive second connecting plate 305 along vertically turning left the removal equally, make regulating plate 204 be located the below of driving plate 203, can make patient's shank kickdown, the use of giving the patient provides the variety, patient's comfort has been guaranteed.

Specifically, the connecting member 308 includes a sleeve and two L-shaped rods fixed on the surface of the sleeve, the outer surface of the rotating shaft 306 is fixedly connected to the inner wall of the sleeve, one end of each of the two L-shaped rods is fixedly connected to the back of the driving plate 203, and one end of each of the two third connecting rods 309 is rotatably connected to the two L-shaped rods through a pin.

In this embodiment, the structural strength of the connection member 308 is ensured.

Specifically, the driving assembly 4 includes a fixed base 401 and a worm gear box 402, the fixed base 401 and the worm gear box 402 are respectively fixed on the two mounting plates 108, a fixed cylinder 403 is fixedly mounted inside the fixed base 401, one end of the fixed cylinder 403 is fixedly connected with one side of the worm gear box 402 and is communicated with the inside of the worm gear box 402, a worm gear and a worm which are meshed with each other are fixedly mounted inside the worm gear box 402, a lead screw 404 is arranged inside the fixed cylinder 403, one end of the lead screw 404 penetrates through the worm gear box 402 and is fixedly connected with the worm gear inside the worm gear box, an adjusting column 405 is connected with the upper thread of the lead screw 404, a sliding tube 406 is fixedly mounted inside the fixed cylinder 403, one end of the adjusting column 405 penetrates through the sliding tube 406 and is slidably connected with the sliding tube 406, a servo motor 407 is fixedly mounted on one side of the worm gear box 402, an output shaft of the servo motor 407, the screw rod 404 is fixedly provided with a connecting column 408 penetrating through one end of the worm gear box 402, and one end of the connecting column 408 penetrates through the rear guard plate 105 and is fixedly provided with a rotating handle 409.

In this embodiment, can drive the worm through servo motor 407 and carry out just reversing, thereby drive the turbine and just reverse, both drive lead screw 404 and just reverse, thereby take place to remove with lead screw 404 threaded connection's regulation post 405, because adjust post 405 and slide tube 406 sliding connection, thereby can make regulation post 405 carry out vertical left and right translation, both can drive adjusting part 3 work, equally also can drive lead screw 404 through turning handle 409 and carry out just reversing, can reach above-mentioned function equally, thereby conveniently adjust plate body subassembly 2, also can use under the condition of having a power failure.

Specifically, the connection column 408 penetrates through a portion of the backplate 105 and is fixedly connected to the backplate 105 through a bearing.

In this embodiment, the connecting column 408 is ensured to rotate smoothly, and the fixing effect of the connecting column 408 is improved.

Specifically, one end of each of the two adjusting columns 405 is fixedly connected to the first connecting plate 301 and the second connecting plate 305.

In this embodiment, can drive first connecting plate 301 and second connecting plate 305 through two regulation posts 405 and carry out work to drive adjusting part 3 and carry out work.

The utility model discloses a theory of operation and use flow: when a patient lies on the plate body assembly 2 for rest, the main plate 201, the fixing plate 202, the transmission plate 203 and the adjusting plate 204 are kept horizontally and level, when the patient needs to sit on a patient bed, one of the servo motors 407 is started to drive the worm to rotate, thereby driving the turbine to rotate, thereby driving the screw rod 404 to rotate, thereby driving the adjusting column 405 in threaded connection with the screw rod 404 to move, as the adjusting column 405 is in sliding connection with the sliding pipe 406, the adjusting column 405 can move longitudinally leftwards, thereby driving the first connecting plate 301 to move leftwards along the longitudinal direction, as the fixing piece 303 is fixed on the main plate 201, and two first connecting rods 302 are rotatably connected between the first connecting plate 301 and the fixing piece 303, thereby driving the first connecting rods 302 to rotate rightwards along the vertical direction, thereby driving the main plate 201 to rotate rightwards along the vertical direction, thereby deepening the distance of the first connecting plate 301 along the longitudinal direction, the main plate 201 rotates to form a certain included angle with the fixed plate 202, the maximum included angle is 120 degrees, namely, the maximum rotation angle of the main plate 201 is 70 degrees, the driving principle of the adjustment of the driving plate 203 and the adjusting plate 204 is the same as that of the main plate 201, and different from the driving principle, when the leg of the patient needs to be bent upwards, the second connecting plate 305 is driven by the adjusting column 405 to move to the right along the longitudinal direction, at this time, the second connecting rod 307 is driven by the second connecting plate 305 to rotate to the right along the vertical direction, thereby driving the rotating shaft 306 to rotate to the right, at this time, the driving plate 203 is driven by the connecting piece 308 to rotate upwards, therefore, the included angle between the third connecting rod 309 and the fourth connecting rod 310 is increased, the fourth connecting rod 310 is gradually in a horizontal state, the adjusting plate 204 is finally positioned above the transmission plate 203, the leg of the patient can be bent upwards, and the transmission plate 203 can be positioned above the adjusting plate 204 in the same way.

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

Claims

1. The utility model provides a manual-automatic wheelchair bed which characterized in that: comprises a frame component (1), a plate component (2), an adjusting component (3) and two driving components (4);

the plate body assembly (2), the adjusting assembly (3) and the two driving assemblies (4) are all arranged on the frame assembly (1), the adjusting assembly (3) is connected with the plate body assembly (2), the adjusting assembly (3) is used for driving the plate body assembly (2) to adjust, the adjusting assembly (3) is connected with the two driving assemblies (4), and the two driving assemblies (4) are used for driving the adjusting assembly (3) to work;

the frame assembly (1) comprises an underframe (101), a front guard plate (102) is fixedly mounted at one end of the underframe (101), four connecting blocks (103) are symmetrically and fixedly mounted at the top of the underframe (101), ejector rods (104) are fixedly mounted on one side, opposite to each other, of each two connecting blocks (103), a rear guard plate (105) is fixedly mounted at one end of each two ejector rods (104), universal self-locking wheels (106) and side guard plates (107) are fixedly mounted on the front and the back of the underframe (101), and two mounting plates (108) are fixedly mounted inside the underframe (101);

plate body subassembly (2) include mainboard (201), fixed plate (202), driving plate (203) and regulating plate (204), mainboard (201) are rotated through the top of round pin axle with two ejector pins (104) and are connected, the bottom of fixed plate (202) and the top fixed connection of two ejector pins (104), one side of driving plate (203) is rotated through the round pin axle and is connected with one side of fixed plate (202), the opposite side of driving plate (203) is rotated through the round pin axle and is connected with one side of regulating plate (204).

2. The automated manual wheelchair bed of claim 1, wherein: adjusting part (3) include with one of them drive assembly (4) fixed first connecting plate (301), the one end of first connecting plate (301) is connected with two head rods (302), two through the round pin hub rotation be connected with mounting (303) between one side that head rod (302) are relative through the round pin hub rotation, the one end of mounting (303) and the back fixed connection of mainboard (201), fixed mounting has stiffener (304) on mounting (303), the one end of stiffener (304) and the back fixed connection of mainboard (201).

3. The automated manual wheelchair bed of claim 2, wherein: the fixing piece (303) comprises two long rods and a support plate fixed at the tops of the two long rods, the two first connecting rods (302) are rotatably connected with the two long rods through pin shafts, and the reinforcing rod (304) is fixed at the top of the support plate.

4. The automated manual wheelchair bed of claim 2, wherein: the adjusting component (3) further comprises a second connecting plate (305) fixed with another driving component (4) and a rotating shaft (306) arranged between the two ejector rods (104), one end of the second connecting plate (305) is rotatably connected with a second connecting rod (307) through a pin shaft, two ends of the rotating shaft (306) are rotatably connected with the corresponding ejector rods (104) through bearings, one end of the second connecting rod (307) is rotatably connected with the rotating shaft (306) through a pin shaft, a connecting piece (308) is fixedly installed on the outer surface of the rotating shaft (306), one end of the connecting piece (308) is fixedly connected with the back of the transmission plate (203), the connecting piece (308) is rotatably connected with two third connecting rods (309) through a pin shaft, and one end of each of the two third connecting rods (309) is rotatably connected with two fourth connecting rods (310) through a pin shaft, one ends of the two fourth connecting rods (310) are rotatably connected with the back of the adjusting plate (204) through pin shafts.

5. The automated manual wheelchair bed of claim 4, wherein: the connecting piece (308) comprises a sleeve and two L-shaped rods fixed on the surface of the sleeve, the outer surface of the rotating shaft (306) is fixedly connected with the inner wall of the sleeve, one ends of the two L-shaped rods are fixedly connected with the back of the transmission plate (203), and one ends of the two third connecting rods (309) are rotatably connected with the two L-shaped rods through pin shafts.

6. The automated manual wheelchair bed of claim 1, wherein: the driving assembly (4) comprises a fixed seat (401) and a worm and gear box (402), the fixed seat (401) and the worm and gear box (402) are respectively fixed on two mounting plates (108), a fixed cylinder (403) is fixedly mounted inside the fixed seat (401), one end of the fixed cylinder (403) is fixedly connected with one side of the worm and gear box (402) and communicated with the inside of the worm and gear box, a worm wheel and a worm which are meshed with each other are fixedly mounted inside the worm and gear box (402), a lead screw (404) is arranged inside the fixed cylinder (403), one end of the lead screw (404) penetrates through the worm and gear box (402) and is fixedly connected with the worm wheel inside the worm and gear box, an adjusting column (405) is connected with the upper thread of the lead screw (404), a sliding tube (406) is fixedly mounted inside the fixed cylinder (403), one end of the adjusting column (405) penetrates through the sliding tube (406) and is connected with the sliding tube (406) in a, one side fixed mounting of turbine worm case (402) has servo motor (407), the output shaft of servo motor (407) passes through the one end fixed connection of shaft coupling and the inside worm of turbine worm case (402), the one end fixed mounting that lead screw (404) run through turbine worm case (402) has spliced pole (408), the one end of spliced pole (408) runs through backplate (105) and fixed mounting has turning handle (409).

7. The automated manual wheelchair bed of claim 6, wherein: the connecting column (408) penetrates through the part of the rear guard plate (105) and is fixedly connected with the rear guard plate (105) through a bearing.

8. The automated manual wheelchair bed of claim 6, wherein: one end of each of the two adjusting columns (405) is fixedly connected with the first connecting plate (301) and the second connecting plate (305) respectively.