TW202235064A - Nursing device can be switched between a bed frame state and a wheel chair state - Google Patents

Abstract

A nursing device comprises a wheel seat mechanism, a driving module, a bed frame mechanism, and a linkage mechanism. The wheel seat mechanism comprises a telescopic bottom rack, a front wheel set and a rear wheel set respectively mounted at a front side and a rear side of the telescopic bottom rack. The driving module is mounted at the telescopic bottom rack and drives the telescopic bottom rack to retract and stretch while in operation. The bed frame mechanism comprises a primary bed board seat fixed and mounted on the wheel seat mechanism, and a backrest board seat pivoted to the primary bed board seat. The linkage mechanism comprises at least one inclined bracket pivoted between the telescopic bottom rack and the backrest board seat. The nursing device can be switched between a bed frame state and a wheel chair state to effectively improve the moving convenience and usage flexibility of the nursing device.

Description

nursing device

The invention relates to a nursing device, in particular to a nursing device capable of changing between a bed frame state and a wheelchair state.

At present, such as a bed frame as a hospital bed, in order to facilitate a user to sit or lie, it is usually designed to lift the upper half of a mattress of the bed frame electrically or manually, so that the user can use it as a seat when sitting. Backrest use.

Yet, because only this mattress is lifted, the total length of the frame that is provided with castors is constant, when needing to move this bed frame, a caregiver still needs to set aside certain space in advance, or uses special-purpose elevator and/or special-purpose It is very inconvenient and difficult to use to move the bed frame from the original room to the destination; even when there is not enough space in the room or the aisle, the bed frame cannot be pushed out of the room. Therefore, when the user needs to move, he can only move to another wheelchair, which also causes weak or handicapped users to have low mobility.

It is therefore an object of the present invention to provide a nursing device which at least overcomes the disadvantages of the prior art.

Therefore, the nursing device of the present invention includes a wheel seat mechanism, a driving module, a bed frame mechanism, and a linkage mechanism.

The wheel base mechanism includes a telescopic base frame extending forward and backward along a longitudinal direction, a front wheel set installed on the front side of the telescopic base frame, and a rear wheel set installed on the rear side of the telescopic base frame and spaced from the front wheel set .

The driving module is installed on the telescopic bottom frame of the wheel seat mechanism, and is used to drive the telescopic bottom frame to expand and contract backwards and forwards when operated.

The bed frame mechanism includes a main bed board seat fixedly installed on the wheel seat mechanism, and a backrest board seat pivotally connected to the rear side of the main bed board seat so as to swing upwards.

The linkage mechanism includes at least one diagonal brace pivotally connected between the rear side of the telescopic chassis of the wheel seat mechanism and the front side of the backrest board seat of the bed frame mechanism.

The nursing device can be changed between a bed frame state and a wheelchair state. In the bed frame state, the backrest board seat and the main bed board seat are flattened, and the telescopic base frame is shortened when the drive module is operated. At this time, the rear wheel set is driven to move forward relative to the front wheel set, and the bottom side of the at least one diagonal brace is also driven forward, and the top side of the diagonal brace is used to support the back against the plate seat to rotate upwards, and the The nursing device is transformed into the wheelchair state.

The effect of the present invention is that the nursing device can be changed between a bed frame state and a wheelchair state, and in the wheelchair state, the wheelbase between the front wheel set and the rear wheel set can be smaller than that of the wheel in the bed frame state. distance, effectively improving the mobility of the nursing device.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numerals.

Referring to FIG. 1 and FIG. 3 , an embodiment of the nursing device of the present invention is suitable for a user (not shown) and an operator (not shown). This embodiment can change between a bedstead state (Fig. 1) for the user to lie down and a wheelchair state (Fig. 9) for the user to sit and lie down, and includes a Wheel base mechanism 1, a driving module 2 installed on the wheel base mechanism 1 and capable of driving the wheel base mechanism 1 when being manipulated, a bed frame mechanism 3 installed on the wheel base mechanism 1, a A linkage mechanism 4 between the wheel base mechanism 1 and the bed frame mechanism 3 , and a brake mechanism 5 . The front-back direction in this embodiment refers to the installation and extension orientation of the nursing device in the state of the bed frame for the user to lie flat.

2 to 4, the wheel seat mechanism 1 includes a telescopic chassis 11 extending forward and backward along the longitudinal direction D, a front wheel set 12 installed on the front side of the telescopic chassis 11, and a telescopic chassis mounted on the telescopic chassis. 11 a rear wheel set 13 on the rear side and separated from the front wheel set 12 in the longitudinal direction D by a first wheelbase W1.

The telescopic bottom frame 11 includes a fixed frame base 111, a telescopic frame base 112 that can move back and forth along the longitudinal direction D relative to the fixed frame base 111, and is installed on the rear side of the fixed frame base 111. Assembled on the four corners of the fixed frame base 111 and extending vertically upwards, two support members 113 are respectively installed on the left and right ends of the front side of the fixed frame base 111 and cooperate with the fixed frame base 111 to form a "mouth". font front protective frame 114, and two rear protective frames 115 that are respectively installed on the left and right ends of the telescopic frame seat 112 rear side and generally in the shape of "C".

The fixed frame base 111 includes two fixed sleeves 116 spaced left and right, and two fixed connectors 117 fixedly engaged between the fixed sleeves 116 spaced front and rear. The fixing connector 117 on the front side is roughly in the shape of a "C", and the fixing connector 117 on the rear side is straight. The telescopic frame base 112 includes two moving rods 118 that are spaced left and right and can move back and forth synchronously from the rear side of the fixed sleeves 116 and extend into the fixed sleeves 116 respectively, and a moving rod that is fixedly connected to the moving rods. The connecting rod 119 on the rear side of the piece 118. The telescopic frame base 112 can move back and forth relative to the fixed frame base 111 when driven, so that the telescopic base frame 11 can be stretched back and forth. The front wheel set 12 has two left-right symmetrical front wheels 121 respectively mounted on the front sides of the fixed sleeves 116 of the fixed frame base 111 . Each front wheel 121 is surrounded by a respective front protection frame 114 to avoid collision. The rear wheel 131 has two left-right symmetrical rear wheels respectively mounted on the rear side of the moving rods 118 of the telescopic frame 112 . Each rear wheel 131 is surrounded by a respective rear protection frame 115 to avoid collision.

The drive module 2 includes a drive sleeve 21 fixedly installed on the bottom side of the fixed connectors 117 of the fixed frame base 111 and extending along the longitudinal direction D, and a front side screwed on the drive sleeve 21 and can be A moving screw 22 that moves back and forth relative to the driving sleeve 21 when being driven to rotate, and a driver 23 that is fixedly installed on the rear side of the moving screw 22 and fixedly installed on the connecting rod 119 of the telescopic frame seat 112 . When the driving member 23 is manipulated, it can drive the moving screw 22, so that the moving screw 22 can rotate backward or forward relative to the driving sleeve 21, so that the whole driving module 2 can move along the lengthwise direction. The direction D can be selectively elongated or shortened, and the telescopic rods of the telescopic frame base 112 can be respectively inserted into the fixed sleeves 116 in conjunction with the moving screw 22, so that the telescopic frame base 112 can also move along the The longitudinal direction D can be selectively lengthened or shortened.

In this embodiment, the driving member 23 includes a driving motor. In other variations of this embodiment, the driving member 23 can also include other components, such as a gear set. Since how the driving member 23 drives the moving screw 22 is known in the technical field, and is not the focus of this embodiment, no more details are given here.

The bed frame mechanism 3 includes a main bed base 31 which is generally square and fixedly assembled on the supports 113, a backrest base 32 which is generally square and pivotally connected to the rear side of the main bed base 31, which is generally square and can swing upwards. A square foot rest board seat 33 that is pivotally connected to the front side of the main bed board seat 31 and has a penetrating groove 332 located on the bottom side, and is pivotally connected to the back board seat 32 so that it can swing upwards. The head resting board seat 34, an adjustment unit 36 connected between the back leaning board seat 32 and the head leaning board seat 34, and two are foldably installed on the main bed board seat 31 and the back leaning board seat 32 37 of the armrests. The upward swing and downward swing mentioned in this embodiment refer to the rotation direction when the nursing device is in the state of the bed frame.

Referring to Fig. 6 to Fig. 8, the headrest board seat 34 has a headrest group 341 pivotally connected to the backrest board seat 32 by a first pivot member 35, and two symmetrically arranged and adjustable inclination angles in stages. The side rest pillow group 342 connected to the left and right sides of the headrest group 341 is grounded.

The adjustment unit 36 includes a catch seat 361 fixedly installed on the rear side of the backrest board seat 32 and pierced through the first pivot member 35 and formed with a plurality of catch slots 362 , A tilting block 363 of one of the locking slots 362 of the catch seat 361, and a tilting block 363 connected to the first pivot member 35 and giving the tilting block 363 a constant direction towards the cards The elastic first elastic member 364 of the catch groove 362 . The tilting block 363 of the adjustment unit 36 is located in different locking grooves 362, so that the tilt angle of the headrest board seat 34 can be adjusted in stages when pivoting relative to the backrest board seat 32 (as shown in FIG. 8 ). .

Referring to Fig. 6, Fig. 9 and Fig. 10, the headrest set 341 has a headrest frame 343, and two sets of headrest catch frames which are pivotally connected to the left and right sides of the headrest frame 343 by means of two second pivot members 345 respectively. 346. The headrest catch frames 346 are left and right symmetrical. Each headrest locking frame 346 has two headrest locking seats 350 passing through the corresponding second pivotal member 345 and defining a plurality of headrest locking slots 351 . Each side pillow group 342 includes a side pillow frame 347, a pillow block 348 that can be locked in one of the headrest locking grooves 351 of the corresponding headrest locking seat 350, and a headrest block 348 that is connected to the headrest block 348 and the corresponding headrest block 348. The pivotal member and the second elastic member 349 that gives the headrest block 348 a constant elastic force toward the headrest locking grooves 351 . The headrest blocks 348 are selectively locked in the corresponding headrest locking grooves 351 , so that the side pillow sets 342 can adjust the inclination angles of the headrest sets 341 in stages.

Referring to Fig. 1 and Fig. 5, these handrails 37 can be unfolded (Fig. 1) and folded (Fig. 5) relative to the bed frame mechanism 3 when being controlled, and these handrails 37 are respectively installed on the main bed board seat 31 and The back rests on the board seat 32 and is located on the right side in FIG. 1 .

Referring to FIG. 2 to FIG. 4 , the linkage mechanism 4 includes two diagonal braces 41 arranged symmetrically on the left and right, and a linkage unit 42 installed on the bottom right side of the bed frame mechanism 3 . Each diagonal brace 41 is pivotally connected between the rear side of the telescopic bottom frame 11 and the front side of the backrest board seat 32 . The linkage unit 42 has a driving piece 421 fixedly mounted on the bottom front side of the backrest board seat 32 and protruding below the main bed board seat 31, a pivoting rod 422 pivotally connected to the front side of the driving piece 421, and a The linkage rod 423 is pivotally connected to the front side of the pivot rod 422 and is mounted on the bottom of the main bed board seat 31 and the footrest board seat 33 so as to slide back and forth. In this embodiment, the linkage rod 423 is a slide slot 311 passing through the bottom side of the main bed base 31 so as to be able to move forward and backward.

The brake mechanism 5 includes a control handle 51 that is pivotally connected to the diagonal bracket 41 and can be operated to pull down, and two brake units 52 that are symmetrically pivoted to the left and right sides of the control handle 51 (in the One such brake unit 52 is shown in FIG. 2 ). Each brake unit 52 has a top side pivotally connected to the brake lever 521 of the control handle 51, a bottom side connected between the brake lever 521 and the rear side of the moving rod 118 of the telescopic frame seat 112 and endowed with the brake lever 521. The brake lever 521 constantly presses down the elastic member 522 of the respective rear wheels 131, and a brake member 523 pivotally connected to the bottom side of the brake lever 521 and pressed against the respective rear wheels.

Referring to Fig. 2, Fig. 11 and Fig. 12, in the state of the bed frame (as shown in Fig. 2), the backrest board seat 32 and the main bed board seat 31 are flattened, and the linkage rod 423 is along the longitudinal direction D The stretching groove 332 protruding to the foot rest board seat 33 supports the foot rest board seat 33 so that the foot rest board seat 33 and the main bed board seat 31 are also flattened. When this embodiment is converted from the bed frame state to the wheelchair state, the operator such as a caregiver controls the drive member 23 to rotate, so that the moving screw 22 is driven forward relative to the drive sleeve 21 screw to move, so that the moving rods 118 of the telescopic frame 112 and the moving screw 22 move forward relative to the fixed sleeves 116 to shorten the overall length of the telescopic chassis 11, and synchronously drive the The rear wheels 131 move forward relative to the front wheel set 12 to shorten to a second wheelbase W2, and the bottom sides of the diagonal braces 41 are also driven forward to support the backrest board with the top side of the diagonal braces 41 Seat 32 rotates upwards, and drives this driving piece 421 front side to rotate downwards, and this pivotal rod 422 pulls to obliquely downward rear, and then drives this linkage rod 423 to move backward, until this foot resting plate seat 33 is not subject to this linkage. Rod 423 supports and leans on the bottom, and is converted to this wheelchair state (as Fig. 12).

When switching back to the state of the bed frame, as long as the driving member 23 is operated and rotated, the nursing device will reversely move and reset according to the above description.

It should be noted that the number of the diagonal braces 41 is not limited to two, and may also be one in other variations of this embodiment.

Referring to Fig. 12 and Fig. 13, the braking mechanism 5 can be in a braking position where the braking members 523 are pressed against the rear wheels 131 to stop them by friction force and a moving position away from the rear wheels 131. switch between. The control handle 51 can be operated to pull down to drive the brake levers 521 to move up, and pull the brake parts 523 up without pressing against the rear wheels 131, so that the rear wheels 131 can Transition from the braking position to the moving position. When the control handle 51 is released, the braking mechanism 5 is automatically reset to the braking position by using the elastic force of the elastic member 522 . In this embodiment, the control handle 51 includes a hook 511, and the brake mechanism 5 also includes two posts 53 protruding from the outsides of the diagonal brackets 41 (Figure 12 and Figure 13 show one side The card column 53). When the hooks 511 are engaged with the posts 53 respectively, the braking mechanism 5 can be maintained at the moving position.

Referring to Fig. 8, Fig. 10 and Fig. 14, the operator can also pull the tilting block 363 of the adjustment unit 363 and place it in the selected locking groove 362, and use the second elastic member 364 to tilt the The locking block 363 presses against the locking groove 362 , so that the tilt angle of the headrest plate seat 34 can be adjusted in stages relative to the backrest plate seat 32 , and is positioned at a specific tilt angle. Or alternatively, the headrest block 348 of each side headrest group 342 can also be pulled and placed against the selected headrest locking groove 351, and the headrest block 348 is pressed by the second elastic member 349. The side pillow set 342 is positioned at a specific inclination angle relative to the headrest set 341 by abutting against the headrest locking groove 351 . In this way, when the user sits on the nursing device in the wheelchair state, the user's head can be confined between the side pillow sets 342 by using the side pillow sets 342 .

In addition, in this embodiment, the foot rest board seat 33 also includes a foot rest board 333 and two leaning boards 334 located on the left and right sides of the foot rest board 333 and whose inclination angle can be adjusted relative to the foot board 333. , and the adjustment angles of the leaning plates 334 are the same as those of the side pillow sets 342 . Therefore, the user's feet can also be confined between the reclining boards 334

In summary, the nursing device of the present invention can switch between the bed frame state and the wheelchair state by utilizing the driving module 2 and the linkage mechanism 4 in cooperation with the design of the wheel seat mechanism 1, and in the wheelchair state , the second wheelbase W2 of the front wheel set 12 and the rear wheel set 13 is smaller than the first wheelbase W1 of the bed frame state, effectively reducing the overall length, so that the nursing device is a wheelchair, which can be moved conveniently and flexibly , the user does not need to move to another wheelchair, which effectively improves convenience. On the other hand, the headrest plate seat 34 can also be adjusted step by step to the inclination angle suitable for the user, so the purpose of the present invention can indeed be achieved.

But what is described above is only an embodiment of the present invention, and should not limit the scope of the present invention. All simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the patent specification are still within the scope of the present invention. Within the scope covered by the patent of the present invention.

1: wheel seat mechanism 11: telescopic bottom frame 111: fixed frame seat 112: telescopic frame seat 113: support 114: Front protection frame 115: rear protection frame 116: fixed sleeve 117: fixed connector 118: Move rod 119: connecting rod 12: Front wheel set 121: Front wheel 13: Rear wheel group 131: rear wheel 2: Driver module 21: Drive bushing 22: Mobile screw 23: Driver 3: Bed frame mechanism 31: Main bed board seat 311: chute 32: back to board seat 33:Foot board seat 332: piercing groove 333: foot board 334: reclining board 34: head against board seat 341: headrest set 342: side pillow set 343: headrest frame 345: the second pivot piece 346: Pillow catch frame 347: side pillow frame 348: pillow block 349: second elastic member 350: Pillow locking seat 351: Pillow catch slot 35: The first pivotal member 36: Adjustment unit 361: card seat 362: card slot 363: Tilt block 364: the first elastic member 37: Armrest 4: linkage mechanism 41: Diagonal brace 42: Linkage unit 421: Drive film 422: pivot rod 423: linkage rod 5: Braking mechanism 51: Control handle 511: hook 52:Brake unit 521: brake lever 522: Elastic parts 523: brake parts 53: card column D: Long direction W1: The first wheel base W2: second wheel base

Other features and effects of the present invention will be clearly presented in the implementation manner with reference to the drawings, wherein: Fig. 1 is a perspective view illustrating an embodiment of the nursing device of the present invention in a bedstead state; Fig. 2 is a side view, illustrating that the embodiment is in the state of the bed frame, and a rear protective frame is omitted; Fig. 3 is a partial perspective exploded view illustrating the embodiment, and a part of the rear protective frame is omitted; Fig. 4 is the three-dimensional exploded view of another angle of this embodiment; Fig. 5 is a side view, illustrating that the second-hand of this embodiment is folded; Fig. 6 is a partial perspective view, illustrating that an adjustment unit of this embodiment is arranged between a head-rest board seat and a back-rest board seat; Fig. 7 is a partial cross-sectional view illustrating the adjustment unit, the head rest board seat and the back rest board seat; Fig. 8 is a partial cross-sectional view illustrating the adjustment of the inclination angle of the headrest plate seat relative to the backrest plate seat; Figure 9 is a partial perspective view illustrating the headrest; Fig. 10 is a partial perspective view, illustrating that the two side pillow groups of the headrest board seat can adjust the inclination angle relative to a headrest group; Fig. 11 is a partial sectional view illustrating the process of the linkage rod moving back away from a foot resting on the board seat; Fig. 12 is a side view, illustrating that the embodiment is in a wheelchair state, and the rear protective frame is omitted; Fig. 13 is a side view illustrating the braking mechanism of this embodiment in a moving position, and omitting the rear protective frame; and Fig. 14 is a perspective view illustrating that the embodiment is in the state of the wheelchair, and the side pillow sets are inclined relative to the headrest set.

1: wheel seat mechanism

111: fixed frame seat

112: telescopic frame seat

113: support

114: Front protection frame

115: rear protection frame

12: Front wheel set

13: Rear wheel set

2: Driver module

3: Bed frame mechanism

31: Main bed board seat

32: back to board seat

33:Foot board seat

34: head against board seat

37: Armrest

4: linkage mechanism

5: Braking mechanism

D: Long direction

Claims (9)

A nursing device comprising: A wheel seat mechanism, comprising a telescopic base frame extending forward and backward along a longitudinal direction, a front wheel set mounted on the front side of the telescopic base frame, and a rear wheel set mounted on the rear side of the telescopic base frame and spaced from the front wheel set ; a driving module, installed on the telescopic base frame of the wheel base mechanism, and used to drive the telescopic base frame to expand and contract back and forth when operated; A bed frame mechanism, including a main bed board seat fixedly installed on the wheel seat mechanism, and a backrest board seat pivotally connected to the rear side of the main bed board seat so as to swing upward; and a linkage mechanism, including at least one diagonal brace pivotally connected between the rear side of the telescopic base frame of the wheel seat mechanism and the front side of the backrest board seat of the bed frame mechanism, The nursing device can be changed between a bed frame state and a wheelchair state. In the bed frame state, the backrest board seat and the main bed board seat are flattened, and the telescopic base frame is shortened when the drive module is operated. At this time, the rear wheel set is driven to move forward relative to the front wheel set, and the bottom side of the at least one diagonal brace is also driven forward, and the top side of the diagonal brace is used to support the back against the plate seat to rotate upwards, and the The nursing device is transformed into the wheelchair state. The nursing device as claimed in claim 1, wherein the bed frame mechanism further includes a footrest seat that can be swung down and pivotally connected to the front side of the main bed seat, and the linkage mechanism also includes a The linkage unit on the bottom side, the linkage unit has a driving piece fixedly installed on the front side of the backrest board seat and protruding to the bottom of the main bed board seat, a pivoting rod pivotally connected to the front side of the driving piece, and a pivoting A linkage rod mounted on the front side of the pivot rod and slidable forward and backward under the main bed base and the footrest base. When the bed frame is in the state, the linkage rod protrudes to the footrest along the longitudinal direction The bottom of the board seat is supported against the foot board seat, so that the foot board board seat and the main bed board board seat are flattened. The connecting rod moves backwards, so that the foot rest board seat is not supported by the connecting rod and swings down. The nursing device according to claim 1, wherein the bed frame mechanism further includes a headrest board seat connected to the rear side of the backrest board seat, and the headrest board seat is connected to the backrest board seat with an adjustable inclination angle. A headrest group of the board seat, and two side pillow groups that are connected to the left and right sides of the headrest group with adjustable inclination angles respectively. The nursing device according to claim 1, wherein the rear wheel set of the wheel seat mechanism has two rear wheels symmetrically installed on the rear side of the bottom telescopic frame, and the linkage mechanism includes two rear wheels respectively installed symmetrically on the The diagonal braces on the left and right sides of the telescopic bottom frame of the wheel seat mechanism, the nursing device also includes a brake mechanism, and the brake mechanism includes a control that is pivotally connected to the diagonal brace and can be operated to pull down. handle, and two brake units pivotally connected to the left and right sides of the control handle, each brake unit has a brake lever pivotally connected to the control handle with its top side, two brake levers pivotally connected to the bottom side of the brake lever and Brake parts against the respective rear wheels, an elastic member connected between the bottom side of the brake lever and the telescopic chassis and endowing the brake lever with constant downward pressure on the respective rear wheels, the control handle It is pivotally connected to the top side of the brake levers and can be operated to be pulled down. The nursing device as described in claim 4, wherein, the control handle of the brake mechanism includes two hooks, and the brake mechanism also includes two hooks that protrude from the diagonal brackets and can engage with the hooks respectively. card post. The nursing device as claimed in claim 1, wherein the front wheel set of the wheel seat mechanism has two left and right symmetrical front wheels installed on the front side of the bottom telescopic frame, and the rear wheel set of the wheel seat mechanism has two left and right symmetrical front wheels The rear wheel installed on the rear side of the bottom telescopic frame, the telescopic bottom frame of the wheel frame mechanism includes a fixed frame seat on which the front wheels are arranged on the front side, and a fixed frame seat that can move forward and backward relative to the fixed frame seat. The rear side of the frame seat is provided with the telescopic frame seat of the rear wheels, a plurality of supports fixedly connected between the fixed frame seat and the main bed board seat of the bed frame mechanism, and two supports respectively installed on the fixed frame seat The front side is respectively surrounded by a front protection frame of these front wheels, and two rear protection frames are respectively installed on the rear side of the telescopic frame seat and respectively surrounded by these rear wheels. The nursing device according to claim 6, wherein the fixed frame base includes two fixed sleeves spaced left and right, and at least one fixed connector connected between the fixed sleeves, and the telescopic frame base includes two The moving rods that penetrate into the fixed sleeves at intervals left and right and can move back and forth, and a connecting rod connected to the moving rods, when the nursing device is converted from the bed frame state to the wheelchair state, The moving rods of the telescopic frame seat move forward relative to the fixed sleeve to shorten the length of the telescopic chassis, and the distance between the front wheel set and the rear wheel set is shortened from a first wheelbase to a distance less than the first wheelbase. The second track of the track. The nursing device according to claim 7, wherein the driving module includes a driving sleeve fixedly installed on the fixed frame, a moving screw connected to the fixed sleeve movably back and forth, and a The rear side of the moving screw is fixedly mounted on the driving part of the telescopic frame base. When the driving part is manipulated, it can drive the moving screw to move forward relative to the driving sleeve, so that the telescopic rods of the telescopic frame base Synchronously move forward to shorten the length of the telescopic base, and convert the nursing device from the state of the bed frame to the state of the wheelchair. The nursing device according to claim 1, wherein the bed frame mechanism further includes two armrests foldably installed on two opposite sides of the main bed board seat and the backrest board seat.

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