CN219538728U - Wheelchair bed capable of realizing mutual conversion between wheelchair and bed for nursing - Google Patents

Abstract

The utility model discloses a nursing wheelchair bed capable of realizing the mutual conversion of a wheelchair and a bed, which comprises an upper plate, a middle plate, a transmission mechanism, a sliding plate mechanism, a middle side plate mechanism and an upper side plate mechanism; one end of the upper plate, which is close to the middle plate along the length direction, is fixedly provided with a main rotating shaft along the width direction; one end of the middle plate, which is close to the upper plate along the length direction, is rotatably connected with the main rotating shaft; the bottom surfaces of two sides of one end, close to the upper plate, of the middle plate along the length direction are fixedly provided with support columns, and the bottom surfaces of two sides of the other end along the length direction are fixedly provided with wheel columns; the bottom ends of the support columns and the bottom ends of the wheel columns are rotatably provided with driving wheels; a transmission mechanism is arranged between the top ends of the two support columns; middle side plate mechanisms are symmetrically arranged at two ends of the middle plate along the width direction; the upper plate is symmetrically provided with upper side plate mechanisms along two ends of the width direction. The nursing wheelchair bed capable of realizing the mutual conversion between the wheelchair and the bed is simple and practical, and can effectively reduce the labor intensity of workers.

Description

Wheelchair bed capable of realizing mutual conversion between wheelchair and bed for nursing

Technical Field

The utility model relates to the technical field of sanitary medical equipment, in particular to a nursing wheelchair bed capable of realizing the mutual conversion between a wheelchair and the bed.

Background

With the entering of China into an aging society, as the number of the aged is increased, the number of people incapable of self-care in life is increased, and the living and living of the aged and common patients are very hard work, so how to lighten the labor intensity of workers is a popular item in the research in the current medical field. One of the labor intensity in daily living care is to carry, support the old or patient to get up and move, and mechanization is an effective way to relieve heavy physical labor, and a practical care machine is needed to solve the problem in society and market.

Disclosure of Invention

In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a wheelchair bed for nursing use that is simple and practical and that enables the wheelchair to bed conversion from one another.

The utility model provides a nursing wheelchair bed capable of realizing mutual conversion between a wheelchair and the bed, which comprises an upper plate, a middle plate, a transmission mechanism, a sliding plate mechanism, a middle side plate mechanism and an upper side plate mechanism;

one end of the upper plate, which is close to the middle plate along the length direction, is fixedly provided with a main rotating shaft along the width direction; one end of the middle plate, which is close to the upper plate along the length direction, is rotatably connected with the main rotating shaft and is rotatably connected with the upper plate through the main rotating shaft; the bottom surfaces of two sides of one end, close to the upper plate, of the middle plate along the length direction are fixedly provided with support columns, and the bottom surfaces of two sides of the other end along the length direction are fixedly provided with wheel columns; the bottom ends of the support columns and the bottom ends of the wheel columns are rotatably provided with driving wheels;

a transmission mechanism is arranged between the top ends of the two support columns and used for controlling the conversion work of the whole wheelchair bed;

middle side plate mechanisms are symmetrically arranged at two ends of the middle plate along the width direction;

the upper plate is symmetrically provided with upper side plate mechanisms along two ends of the width direction.

Preferably, the transmission mechanism comprises a first round bar, a second round bar, a first gear, a second gear, a sector gear, a handle sleeve and a third gear; a first round rod and a second round rod are rotatably arranged between the top ends of the two support columns;

the two ends of the first round rod along the axis direction are respectively and rotatably connected with the two support columns, one end of the first round rod penetrates through the adjacent support columns and extends out, and the extending end is rotatably provided with a first gear and a second gear along the axis direction; the first gear is fixedly connected with the second gear; the radius of the first gear is smaller than that of the second gear; one end of the first gear, which is far away from the support column along the axis direction, is provided with a second gear; the axis of the first gear is arranged below the axis of the main rotating shaft along the vertical direction; one end of the main rotating shaft, which is close to the first gear along the axis direction, is fixedly provided with a sector gear corresponding to the first gear along the axis direction; the sector gear is meshed with the first gear;

one end of the second round rod far away from the first gear along the axis direction is rotatably connected with a similar support column, and the outer wall of the other end of the second round rod is movably sleeved with a handle sleeve along the axis direction; the handle sleeve is movably connected with the similar support column; a third gear is fixedly arranged at one end, close to the second gear, of the handle sleeve along the axis direction, corresponding to the second gear along the axis direction; the third gear is adjustably engaged with the second gear.

Preferably, the slide plate mechanism comprises a slide plate, a slide rail frame, a reel, a guide wheel, a cam and a baffle plate; the middle part of one end of the middle plate, which is close to the upper plate along the length direction, penetrates through the slot along the thickness direction of the middle plate, and a sliding plate is movably arranged in the slot; a slideway frame is arranged below the sliding plate along the length direction of the middle plate; two slide racks are symmetrically arranged and are commonly used for supporting the movement of the slide plate;

the second round rod is rotatably provided with a reel along the axis direction, which is close to the outer wall of the handle sleeve along the axis direction; an outer gear ring is fixedly arranged on the outer wall of one end of the handle sleeve, which is close to the reel in the axial direction, in the axial direction; an inner gear ring is fixedly arranged on the end face, close to the handle sleeve, of the reel along the axis direction, corresponding to the outer gear ring along the axis direction; the outer gear ring is adjustably engaged with the inner gear ring; the bottom surface of the middle plate is provided with a guide wheel; the reel is wound with a stay wire, and two ends of the stay wire are fixedly connected with two ends of the sliding plate along the length direction respectively under the guiding action of the guide wheel;

the outer wall of the second round rod, which is positioned between the two slide way frames, is rotatably provided with a cam; the bottom surface of the sliding plate is fixedly provided with a baffle corresponding to the cam.

Preferably, the middle side plate mechanism comprises a middle side plate, a side rotating shaft and a bevel gear; one end of the middle plate along the width direction is provided with a middle side plate along the length direction; a side rotating shaft is fixedly arranged at one end, close to the middle plate, of the middle side plate along the width direction along the length direction; the middle plate is rotatably connected with the side rotating shaft and is rotatably connected with the middle side plate through the side rotating shaft; and bevel gears are fixedly arranged at the ends of the main rotating shaft and the side rotating shafts, which are close to each other, and are used for driving and connecting the main rotating shaft and the side rotating shafts.

Preferably, the upper side plate mechanism comprises an upper side plate, a guide rail, a ball connecting rod, a tension spring and a pull rope; one end of the upper plate in the width direction is rotatably provided with an upper side plate in the length direction; the bottom surface of one end of the upper plate, which is close to the upper side plate along the width direction, is fixedly provided with a guide rail along the length direction; a sliding block is slidably arranged on the guide rail along the length direction of the upper plate; the sliding block is provided with a ball head connecting rod; one end of the ball head connecting rod, which is far away from the upper plate along the length direction, is rotatably connected with the upper side plate; a tension spring is fixedly arranged at one end of the sliding block, which is far away from the middle plate, along the length direction of the guide rail; the tension spring is sleeved on the periphery of the guide rail, and one end of the tension spring, which is far away from the sliding block along the axis direction, is fixedly connected with the guide rail; a pull rope is fixedly arranged on the sliding block; one end of the pull rope far away from the sliding block along the length direction is fixedly connected with a similar support column.

Preferably, the support posts are arranged on the bottom surfaces of the two sides of one end, far away from the middle plate, of the upper plate along the length direction.

Compared with the prior art, the utility model has the beneficial effects that:

the upper plate and the middle plate form a main structure of the integral wheelchair bed, the integral wheelchair bed is converted into a wheelchair or a bed through the adjustable and controllable transmission mechanism, when the sickbed is in a sickbed state, the upper plate, the middle plate, the upper side plate and the middle side plate are all in horizontal positions, the rest requirement of a patient on the sickbed can be met, when the wheelchair is in a wheelchair state, the upper plate is turned upwards and is perpendicular to the middle plate, the middle side plate is turned upwards, the upper side plate is turned downwards to enable the integral device to be in a wheelchair state, the movement requirement of the patient can be met, the two states are converted with each other, the times of carrying the old people or the patient by workers are reduced, the labor intensity is reduced, and the comfort of the old people or the patient is increased.

It should be understood that the description in this summary is not intended to limit the critical or essential features of the embodiments of the utility model, nor is it intended to limit the scope of the utility model. Other features of the present utility model will become apparent from the description that follows.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a nursing wheelchair bed capable of realizing mutual conversion between a wheelchair and a bed according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a transmission mechanism of a nursing wheelchair bed capable of realizing mutual conversion between a wheelchair and a bed according to an embodiment of the present utility model;

fig. 3 is a schematic guiding view of a guiding wheel of a nursing wheelchair bed capable of realizing mutual conversion between a wheelchair and a bed according to an embodiment of the present utility model.

Reference numerals in the drawings: 1. an upper plate; 2. a middle plate; 3. a transmission mechanism; 4. a slide plate mechanism; 5. a middle side plate mechanism; 6. an upper side plate mechanism;

11. a main rotating shaft; 12. a support column; 13. a wheel post; 14. a driving wheel; 15. a support post;

31. a first round bar; 32. a second round bar; 33. a first gear; 34. a second gear; 35. a sector gear; 36. a handle sleeve; 37. a third gear;

41. a slide plate; 42. a slideway frame; 43. a reel; 44. a guide wheel; 45. a cam; 46. a baffle; 47. an outer gear ring;

51. a middle side plate; 52. a side rotating shaft; 53. a bevel gear;

61. an upper side plate; 62. a guide rail; 63. a ball head connecting rod; 64. a tension spring; 65. a pull rope; 66. a sliding block.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1 to 3, an embodiment of the present utility model provides a nursing wheelchair bed capable of realizing mutual conversion between a wheelchair and a bed, comprising an upper plate 1, a middle plate 2, a transmission mechanism 3, a slide plate mechanism 4, a middle side plate mechanism 5 and an upper side plate mechanism 6;

one end of the upper plate 1, which is close to the middle plate along the length direction, is fixedly provided with a main rotating shaft 11 along the width direction; one end of the middle plate 2, which is close to the upper plate along the length direction, is rotatably connected with the main rotating shaft 11 and is rotatably connected with the upper plate 1 through the main rotating shaft 11; the bottom surfaces of two sides of one end, close to the upper plate 1, of the middle plate 2 along the length direction are fixedly provided with support columns 12, and the bottom surfaces of two sides of the other end along the length direction are fixedly provided with wheel columns 13; the bottom ends of the support columns 12 and the bottom ends of the wheel columns 13 are rotatably provided with driving wheels 14;

a transmission mechanism 3 is arranged between the top ends of the two support columns 12 and is used for controlling the conversion work of the whole wheelchair bed;

the middle plate 2 is symmetrically provided with middle side plate mechanisms 5 at two ends in the width direction;

the upper plate 1 is provided with upper side plate mechanisms 6 symmetrically at both ends in the width direction.

In this embodiment, the upper plate 1 and the middle plate 2 form a main structure of an integral wheelchair bed, and are adjustably and controllably converted into a wheelchair or a bed through the transmission mechanism 3, when in a sickbed state, the upper plate 1, the middle plate 2, the upper side plate 61 and the middle side plate 51 are all in horizontal positions, so that the rest requirement of a patient on the sickbed can be met, when in a wheelchair state, the upper plate 1 is turned upwards and is perpendicular to the middle plate 2, the middle side plate 51 is turned upwards, the upper side plate 61 is turned downwards to enable the integral device to be in a wheelchair state, the moving requirement of the patient can be met by matching with the four driving wheels 14, the two states are mutually converted, the number of times of carrying the elderly or the patients by workers is reduced, the labor intensity is reduced, and the comfort of the elderly or the patients is increased.

In another embodiment, a pillow board is arranged at one end of the upper board 1 far away from the middle board 2 along the length direction, and can be used as a pillow in a sickbed state and a dining board in a wheelchair state; the middle plate 2 is provided with the lower plate along the one end that the length direction kept away from upper plate 1, can act as the horizontal bed board under the sick bed state and the leg extension board under the wheelchair state.

In a preferred embodiment, the transmission mechanism 3 comprises a first round bar 31, a second round bar 32, a first gear 33, a second gear 34, a sector gear 35, a handle sleeve 36 and a third gear 37; a first round rod 31 and a second round rod 32 are rotatably arranged between the top ends of the two support columns 12;

the two ends of the first round bar 31 along the axis direction are respectively and rotatably connected with the two support columns 12, one end of the first round bar penetrates through the adjacent support columns 12 and extends out, and the extending end is rotatably provided with a first gear 33 and a second gear 34 along the axis direction; the first gear 33 is fixedly connected with the second gear 34; the radius of the first gear 33 is smaller than the radius of the second gear 34; one end of the first gear 33, which is away from the support column 12 in the axial direction, is provided as a second gear 34; the axis of the first gear 33 is disposed below the axis of the main rotation shaft 11 in the vertical direction; a sector gear 35 is fixedly arranged at one end of the main rotating shaft 11, which is close to the first gear 33 along the axial direction, corresponding to the first gear 33 along the axial direction; the sector gear 35 meshes with the first gear 33;

one end of the second round bar 32 far away from the first gear 33 along the axial direction is rotatably connected with the adjacent support column 12, and the outer wall of the other end is movably sleeved with a handle sleeve 36 along the axial direction; the handle sleeve 36 is movably connected with the adjacent support column 12; a third gear 37 is fixedly arranged at one end, close to the second gear 34, of the handle sleeve 36 along the axial direction, corresponding to the second gear 34 along the axial direction; the third gear 37 is in adjustable engagement with the second gear 34.

Referring to fig. 1-3, in this embodiment, the handle sleeve 36 is movably connected to the adjacent support column 12, is rotatable and is capable of being pushed and pulled along the axial direction, and likewise, the handle sleeve 36 is movably connected to the second round bar 32, and the principle of transmission and conversion is as follows: the handle sleeve 36 is pushed and pulled to enable the third gear 37 to be meshed with the second gear 34, the handle sleeve 36 is rotated, the third gear 37 rotates and drives the second gear 34 to rotate, the second gear 34 is fixedly connected with the first gear 33 in a coaxial mode, the first gear 33 synchronously rotates when the second gear 34 rotates, the first gear 33 is meshed with the sector gear 35, the second gear 34 rotates to enable the sector gear 35 to drive the main rotating shaft 11 to rotate, the upper plate 1 rotates by taking the main rotating shaft 11 as an axis, and conversion between a wheelchair and a bed is completed.

In another embodiment, the outer wall of the handle sleeve 36 is fixedly provided with a transmission gear in the axial direction; a motor is arranged on the support column 12 near the handle sleeve 36; the motor is in driving connection with the transmission gear for driving the handle sleeve 36 to rotate.

In a preferred embodiment, the slide mechanism 4 includes a slide 41, a slide frame 42, a reel 43, a guide wheel 44, a cam 45, and a flap 46; the middle part of one end of the middle plate 2, which is close to the upper plate 1 along the length direction, penetrates through the slot along the thickness direction of the middle plate 2, and a sliding plate 41 is movably arranged in the slot; a slide rail frame 42 is arranged below the slide plate 41 along the length direction of the middle plate 2; two slide racks 42 are symmetrically arranged and are commonly used for supporting the movement of the slide plate 41;

the second round bar 32 is rotatably provided with a reel 43 in the axial direction near the outer wall of the handle cover 36 in the axial direction; an outer gear ring 47 is fixedly arranged on the outer wall of one end of the handle sleeve 36, which is close to the reel 43 along the axial direction, along the axial direction; an inner gear ring is fixedly arranged on one end face of the reel 43, which is close to the handle sleeve 36 along the axial direction, corresponding to the outer gear ring 47 along the axial direction; an external gear ring 47 is adjustably engaged with the internal gear ring; the bottom surface of the middle plate 2 is provided with a guide wheel 44; the reel 43 is wound with a stay wire, and two ends of the stay wire are fixedly connected with two ends of the slide plate 41 along the length direction respectively under the guiding action of the guide wheel 44;

the outer wall of the second round bar 32 between the two slide frames 42 is rotatably provided with a cam 45; the bottom surface of the slide 41 is fixedly provided with a blocking piece 46 corresponding to the cam 45.

Referring to fig. 1 to 3, in this embodiment, the slide frame 42 is configured as a U-shape, and is divided into two parts corresponding to the upper plate 1 and the middle plate 2, one part is fixedly connected to the upper plate 1, the other part is fixedly connected to the middle plate 2, and the slide frame 42 is assembled in a sickbed state.

The slide rail frame 42 is inclined to be inclined along the length direction away from the top surface of one end of the upper plate 1; the top surface of one end of the sliding plate 41 far away from the inclined surface on the sliding rail frame 42 along the length direction is also obliquely arranged into an inclined surface, and the arrangement of the two inclined surfaces ensures continuity when the sliding plate 41 moves to a grooving position on the sliding rail frame 42 to enter a groove.

The working principle of the slide plate mechanism 4 is as follows: in the bed state, the handle sleeve 36 is pushed and pulled, so that the external gear ring 47 on the handle sleeve 36 is inserted into the internal gear ring on the reel 43 and meshed with the internal gear ring, the handle sleeve 36 is rotated to drive the reel 43 to rotate, and the stay wire on the reel 43 pulls the slide plate 41 to move along the length direction, so that the slide plate 41 can move from the groove to fall onto the slide rail frame 42 and move along the length direction of the slide rail frame 42, or move from the slide rail frame 42 to the groove to enter the groove, and the baffle piece 46 at one end of the slide plate 41 toggles the cam 45 when entering the groove, so that the cam 45 rotates to support the slide plate 41; when the slide plate 41 falls down, the cam 45 is driven to rotate down, so that the slide plate 41 can move in the slide rail frame 42.

In another embodiment, a limiting mechanism is disposed at the position of the cam 45 to limit the rotation angle of the cam 45, so as to increase the stability of the cam 45 during operation and better match the stop piece 46 to complete the operation.

In a preferred embodiment, the middle side plate mechanism 5 includes a middle side plate 51, a side rotating shaft 52, and a bevel gear 53; one end of the middle plate 2 in the width direction is provided with a middle side plate 51 in the length direction; a side rotating shaft 52 is fixedly arranged at one end, close to the middle plate 2, of the middle side plate 51 along the width direction along the length direction; the middle plate 2 is rotatably connected with the side rotating shaft 52 and is rotatably connected with the middle side plate 51 through the side rotating shaft 52; the bevel gears 53 are fixedly arranged at the ends of the main rotating shaft 11 and the side rotating shafts 52, which are close to each other, and are used for the transmission connection of the main rotating shaft 11 and the side rotating shafts 52.

Referring to fig. 1 to 3, in this embodiment, when the main shaft 11 rotates, the bevel gears 53 on the main shaft 11 are driven to rotate, and two bevel gears 53 disposed in the same middle side plate mechanism 5 in a matching manner are engaged and connected in a transmission manner, so that the main shaft 11 rotates to drive the side shaft 52 to rotate, thereby rotating the middle side plate 51.

In a preferred embodiment, the upper plate mechanism 6 includes an upper plate 61, a guide rail 62, a ball-end link 63, a tension spring 64, and a pull cord 65; one end of the upper plate 1 in the width direction is provided with an upper side plate 61 rotatably in the length direction; the upper plate 1 is fixedly provided with a guide rail 62 along the length direction at the bottom surface of one end close to the upper side plate 61 along the width direction; a slide block 66 is slidably arranged on the guide rail 62 along the length direction of the upper plate 1; the slide block 66 is provided with a ball connecting rod 63; one end of the ball-end connecting rod 63, which is far away from the upper plate 1 along the length direction, is rotatably connected with the upper side plate 61; the slide block 66 is fixedly provided with a tension spring 64 along the length direction of the guide rail 62 at one end far away from the middle plate 2; the tension spring 64 is sleeved on the periphery of the guide rail 62, and one end of the tension spring, which is far away from the sliding block 66 along the axial direction, is fixedly connected with the guide rail 62; a pull rope 65 is fixedly arranged on the sliding block 66; one end of drawstring 65, which is longitudinally remote from slider 66, is fixedly attached to adjacent support column 12.

Referring to fig. 1 to 3, in this embodiment, when the upper plate 1 rotates to become a backrest of the wheelchair, the pull rope 65 pulls the slider 66 to move along the guide rail 62, and the slider 66 moves to drive the ball-end link 63 to move, so as to drive the upper side plate 61 to complete rotation. The tension spring 64 is used for resetting the sliding block 66, so that the upper side plate 61 can be rotated and unfolded when the upper plate 1 is rotated to become a sickbed.

In a preferred embodiment, the bottom surfaces of both sides of one end of the upper plate 1, which is far away from the middle plate 2 in the length direction, are provided with struts 15; the strut 15 is internally provided with a spring at one end thereof remote from the upper plate 1 in the axial direction.

Referring to fig. 1 to 3, in this embodiment, the strut 15 is rotatably connected to the upper plate 1 by a simple rotation mechanism such as a right angle spring, and functions as a support in a hospital bed state and as a handrail in a wheelchair state.

The springs are arranged in the struts 15 on two sides of the upper plate 1, when the upper plate 1 rotates to be horizontal, one end of each strut 15 is firstly in contact with the ground, the springs increase the stability of the struts, one end of each strut can be shortened by a small amount after being landed, and the upper plate 1 can be ensured to be horizontal to 180 degrees and not to topple over.

In the description of the present specification, the terms "connected," "mounted," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The nursing wheelchair bed capable of realizing the mutual conversion between a wheelchair and the bed is characterized by comprising an upper plate, a middle plate, a transmission mechanism, a sliding plate mechanism, a middle side plate mechanism and an upper side plate mechanism;

a main rotating shaft is fixedly arranged at one end, close to the middle plate, of the upper plate along the length direction along the width direction; one end of the middle plate, which is close to the upper plate along the length direction, is rotatably connected with the main rotating shaft and is rotatably connected with the upper plate through the main rotating shaft; the bottom surfaces of two sides of one end, close to the upper plate, of the middle plate along the length direction are fixedly provided with support columns, and the bottom surfaces of two sides of the other end along the length direction are fixedly provided with wheel columns; the bottom ends of the support columns and the bottom ends of the wheel columns are rotatably provided with driving wheels;

the transmission mechanism is arranged between the top ends of the two support columns and used for controlling the conversion work of the whole wheelchair bed;

the middle side plate mechanisms are symmetrically arranged at two ends of the middle plate along the width direction;

the upper plate is symmetrically provided with the upper side plate mechanisms along two ends of the width direction.

2. The nursing wheelchair bed of claim 1, wherein the transmission mechanism comprises a first round bar, a second round bar, a first gear, a second gear, a sector gear, a handle sleeve and a third gear; the first round rod and the second round rod are rotatably arranged between the top ends of the two support columns;

the two ends of the first round rod along the axis direction are respectively and rotatably connected with the two support columns, one end of the first round rod penetrates through the adjacent support columns and extends out, and the extending end of the first round rod along the axis direction is rotatably provided with the first gear and the second gear; the first gear is fixedly connected with the second gear; the radius of the first gear is smaller than that of the second gear; one end, far away from the supporting column, of the first gear in the axial direction is provided with the second gear; the axis of the first gear is arranged below the axis of the main rotating shaft along the vertical direction; the fan-shaped gear is fixedly arranged at one end, close to the first gear, of the main rotating shaft along the axial direction, and corresponds to the first gear along the axial direction; the sector gear is meshed with the first gear;

one end of the second round rod far away from the first gear along the axis direction is rotatably connected with the adjacent support column, and the outer wall of the other end of the second round rod is movably sleeved with the handle sleeve along the axis direction; the handle sleeve is movably connected with the similar support column; the end, close to the second gear along the axis direction, of the handle sleeve corresponds to the second gear and is fixedly provided with the third gear along the axis direction; the third gear is adjustably engaged with the second gear.

3. The nursing wheelchair bed of claim 2, wherein the slide mechanism comprises a slide, a slide rack, a reel, a guide wheel, a cam and a baffle; the middle part of one end of the middle plate, which is close to the upper plate along the length direction, penetrates through the slot along the thickness direction of the middle plate, and the sliding plate is movably arranged in the slot; the slide way frame is arranged below the slide plate along the length direction of the middle plate; the two slide way frames are symmetrically arranged and are commonly used for supporting the movement of the slide plate;

the second round rod is rotatably provided with the reel along the axis direction, and the second round rod is close to the outer wall of the handle sleeve along the axis direction; an external gear ring is fixedly arranged on the outer wall of one end of the handle sleeve, which is close to the reel in the axial direction, in the axial direction; an inner gear ring is fixedly arranged on one end face, close to the handle sleeve, of the reel along the axis direction, corresponding to the outer gear ring along the axis direction; the outer gear ring is adjustably engaged with the inner gear ring; the guide wheel is arranged on the bottom surface of the middle plate; the reel is wound with a stay wire, and two ends of the stay wire are fixedly connected with two ends of the sliding plate along the length direction respectively under the guiding action of the guide wheel;

the cam is rotatably arranged on the outer wall of the second round rod positioned between the two slide way frames; the bottom surface of the sliding plate is fixedly provided with the baffle corresponding to the cam.

4. A nursing wheelchair bed capable of realizing the mutual conversion between a wheelchair and a bed according to claim 3, wherein the middle side plate mechanism comprises a middle side plate, a side rotating shaft and a bevel gear; one end of the middle plate along the width direction is provided with the middle side plate along the length direction; the side rotating shaft is fixedly arranged at one end, close to the middle plate, of the middle side plate along the width direction along the length direction; the middle plate is rotatably connected with the side rotating shaft and is rotatably connected with the middle side plate through the side rotating shaft; the bevel gears are fixedly arranged at the ends, close to each other, of the main rotating shaft and the side rotating shafts and are used for being in transmission connection with the main rotating shaft and the side rotating shafts.

5. The nursing wheelchair bed capable of realizing the mutual conversion between a wheelchair and a bed according to claim 4, wherein the upper side plate mechanism comprises an upper side plate, a guide rail, a ball head connecting rod, a tension spring and a pull rope; the upper side plate is rotatably arranged at one end of the upper plate along the width direction along the length direction; the guide rail is fixedly arranged on the bottom surface of one end of the upper plate, which is close to the upper side plate along the width direction, along the length direction; a sliding block is slidably arranged on the guide rail along the length direction of the upper plate; the ball head connecting rod is arranged on the sliding block; one end of the ball head connecting rod, which is far away from the upper plate along the length direction, is rotatably connected with the upper side plate; the tension spring is fixedly arranged at one end, far away from the middle plate, of the sliding block along the length direction of the guide rail; the tension spring is sleeved on the periphery of the guide rail, and one end, far away from the sliding block, in the axial direction is fixedly connected with the guide rail; the pull rope is fixedly arranged on the sliding block; one end of the pull rope, which is far away from the sliding block along the length direction, is fixedly connected with the similar support column.

6. The wheelchair bed for nursing use capable of realizing the mutual conversion between a wheelchair and a bed according to claim 5, wherein the bottom surfaces of both sides of one end of the upper plate, which is far away from the middle plate in the length direction, in the length direction are provided with supporting columns.