CN217489119U - Electric control shifting device - Google Patents

Abstract

The utility model relates to the technical field of medical equipment, an automatically controlled shifter is disclosed, which comprises a frame, the seat frame main part, waist gyration unit, the mobile unit, drive unit and drive unit, the upper portion of seat frame main part and the lower part sliding connection of seat frame main part, the top at waist gyration unit is installed to the lower part of seat frame main part, waist gyration unit rotationally installs the top in the frame, the mobile unit rotates with the lower part of frame to be connected, the drive unit is fixed with the lower part of frame, waist gyration unit, the mobile unit all is connected with the drive unit transmission, the drive unit is connected with the drive unit transmission, it is rotatory to drive waist gyration unit, drive the mobile unit rotates. The utility model discloses set up the upper portion of seat frame main part and the lower part of seat frame main part into sliding connection for the patient can carry out in good time adjustment to the position of seat frame main part according to the demand of oneself, and the patient of being convenient for removes the seat frame main part from bed or other positions, thereby makes things convenient for patient's operation to use.

Description

Electric control shifting device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an automatically controlled shifter.

Background

With the development of science and technology, there has been an increase in auxiliary devices for assisting patients with weakness or disorder of the lower limbs to move. At present, current supplementary shifter mainly comprises parts such as seat frame main part, elevation structure and mobile device, though can help the patient to shift, the patient removes the in-process to the seat frame main part from bed or other positions, needs the nursing staff to assist, and the patient can't adjust the shifter in good time according to the demand of oneself to, current shifter's whole volume is great, can't satisfy the use in narrow and small space, thereby it is inconvenient to lead to current supplementary shifter to use.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention is to provide an electrically controlled shifting device to solve the problem of inconvenient use of the existing shifting device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

automatically controlled shifter, including frame, seat frame main part, waist gyration unit, mobile unit, drive unit and drive unit, the upper portion of seat frame main part with the lower part sliding connection of seat frame main part, the lower part of seat frame main part is installed waist gyration unit's top, waist gyration unit rotationally installs the top of frame, the mobile unit with the lower part of frame is rotated and is connected, the drive unit with the lower part of frame is fixed, waist gyration unit the mobile unit all with the drive unit transmission is connected, the drive unit with the drive unit transmission is connected, with the drive waist gyration unit is rotatory, the drive the mobile unit rotates.

Preferably, the seat frame main body comprises a first seat cushion, a second seat cushion, a first armrest, a second armrest, a backrest, a slide rail, a slide block and a seat frame bottom plate, the seat frame bottom plate is connected with the top of the waist turning unit, the slide block is arranged on each of two sides of the seat frame bottom plate, the first seat cushion and the second seat cushion are oppositely arranged above the seat frame bottom plate, the slide rail is arranged on one side of the first seat cushion and one side of the second seat cushion, and the slide rail is connected with the slide block in a matching manner; the lower extreme of first handrail with one side of first cushion is rotated and is connected, the lower extreme of second handrail with one side of second cushion is rotated and is connected, lean against one side of leaning against and connect first handrail, the opposite side that leans against is connected the second handrail.

Preferably, the electronic control shifting device further comprises a lifting unit, the lifting unit is installed on the rack, the top of the lifting unit is rotatably connected with the waist turning unit, and the lifting unit is in transmission connection with the transmission unit.

Preferably, the lifting unit comprises a screw rod, a screw nut, a lifting plate, a supporting plate and a fourth chain wheel, the supporting plate is fixed to the frame, the fourth chain wheel is in transmission connection with the transmission unit, the screw rod is rotatably installed in the supporting plate, the fourth chain wheel is installed at the end of the screw rod, the screw nut is assembled on the screw rod in a threaded mode, the lifting plate is fixed to the top of the screw nut, the waist turning unit is rotatably installed on the lifting plate, and the lifting plate is connected with the frame.

Preferably, the driving unit includes a three-axis gear shifting unit and a motor, the motor being mounted on the frame, the three-shaft gear shifting unit comprises a case, a power input shaft, a waist rotary output shaft, a lifting output shaft, a movable output shaft and a second spline shaft, the second spline shaft is rotatably arranged on the case, the motor is in transmission connection with the power input shaft, the power input shaft is in transmission connection with the second spline shafts, the waist rotating output shaft, the lifting output shaft and the moving output shaft are respectively connected with one second spline shaft, each second spline shaft is provided with a transmission gear and a sliding gear set, each second spline shaft is correspondingly provided with an electromagnetic shifting fork, the electromagnetic shifting fork is arranged on the case to shift the sliding gear set to be matched with or separated from the transmission gear.

Preferably, the transmission unit comprises a first transmission mechanism, a second transmission mechanism and a third transmission mechanism, the first transmission mechanism is connected with the waist rotation unit and the waist rotation output shaft, the second transmission mechanism is connected with the moving unit and the moving output shaft, and the third transmission mechanism is connected with the lifting unit and the lifting output shaft.

Preferably, waist gyration unit includes waist gyration gear, first drive mechanism includes first bevel gear, second bevel gear, spline sleeve, first integral key shaft and straight-teeth gear, first bevel gear with waist gyration output shaft connects, second bevel gear with first bevel gear meshing is connected, spline sleeve with second bevel gear connects, the one end of first integral key shaft is installed in the spline sleeve, the straight-teeth gear sets up the other end of first integral key shaft, the straight-teeth gear with waist gyration gear meshing is connected.

Preferably, the second transmission mechanism includes a second sprocket mounted at an end of the moving output shaft and a first chain having one side mounted on the second sprocket and the other side connected to the moving unit.

Preferably, the third transmission mechanism comprises a coupler, a worm wheel, a worm, a third chain wheel and a second chain, the coupler is connected with the lifting output shaft, the worm wheel is connected with the coupler, the worm is connected with the worm wheel in a matching mode, the third chain wheel is installed at one end of the worm, one side of the second chain is installed on the third chain wheel, and the other side of the second chain is connected with the lifting unit.

Preferably, the moving unit includes a driving wheel, a universal wheel, a wheel axle, a first sprocket, a brake pad and an electromagnetic brake friction pad, the universal wheel is installed at the bottom of the frame, the wheel axle is rotatably installed on the frame, two ends of the wheel axle are respectively installed with one driving wheel, the first sprocket is installed on the wheel axle, the first sprocket is in transmission connection with the transmission unit, the electromagnetic brake friction pad is fixed with the frame, and the brake pad is installed on the wheel axle.

The embodiment of the utility model provides an automatically controlled gearshift compares with prior art, and its beneficial effect lies in:

the utility model discloses automatically controlled shifting device sets up the upper portion of seat frame main part and the lower part of seat frame main part into sliding connection for the upper portion of seat frame main part can slide for the lower part of seat frame main part, makes the patient can carry out in good time adjustment to the position of seat frame main part according to the demand of oneself, and the patient of being convenient for removes the seat frame main part from bed or other positions on, thereby makes things convenient for patient's operation to use. And, the utility model discloses a waist gyration unit of being connected with the drive unit transmission is set up for the seat frame main part can rotate, and can adjust the direction of seat frame main part through the drive unit, and the patient of being convenient for operates the use to the shifter in narrow and small space.

Drawings

Fig. 1 is a schematic structural diagram of an electrically controlled shifting device according to an embodiment of the present invention;

fig. 2 is a front view of an electrically controlled shifting device according to an embodiment of the present invention;

fig. 3 is a right side view of the electrically controlled shifting device according to the embodiment of the present invention;

fig. 4 is a back view of the electrically controlled shifting device according to the embodiment of the present invention;

fig. 5 is a left side view of the electrically controlled shifting device according to the embodiment of the present invention;

fig. 6 is a top view of a three-axis shift unit in an embodiment of the present invention;

fig. 7 is a schematic view of an internal structure of a three-axis shifting unit in an embodiment of the present invention;

fig. 8 is a schematic structural view of a transmission gear according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a sliding gear in an embodiment of the present invention;

in the figure, 1, a frame;

2. a seat frame main body; 21. a first armrest; 22. a first seat cushion; 23. a second seat cushion; 24. backing up; 25. a slide rail; 26. a slider; 27. a seat frame base plate; 28. a second handrail;

3. a waist rotation unit; 31. a waist slewing gear;

4. a lifting unit; 41. a lead screw; 42. a lead screw nut; 43. a lifting plate; 44. a support plate;

5. a mobile unit; 51. a driving wheel; 52. a universal wheel; 53. an axle; 54. a first sprocket; 55. a brake pad; 56. an electromagnetic brake friction plate;

6. a transmission unit; 61. a synchronous pulley; 62. a synchronous belt; 63. a second sprocket; 64. a first chain; 65. a first bevel gear; 66. a second bevel gear; 67. a spline sleeve; 68. a first spline shaft; 69. a spur gear; 610. a coupling; 611. a worm gear; 612. a worm; 613. a third sprocket; 614. a second chain;

7. a three-axis shift unit; 71. a chassis; 72. a power input shaft; 73. a waist rotation output shaft; 74. lifting the output shaft; 75. moving the output shaft; 76. an electromagnetic shift fork; 77. a waist spline shaft; 771. a first drive gear; 7711. a pin hole; 772. a first slipping gear set; 7721. a slipping gear; 7722. a cylindrical pin; 773. a first gear; 774. a second gear; 775. a drive shaft; 78. lifting the spline shaft; 781. a second transmission gear; 782. a second slipping gear set; 79. moving the spline shaft; 791. a third transmission gear; 792. a third slipping gear set;

8. an electric motor.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1-5, an electrically controlled shifting device (hereinafter, simply referred to as shifting device) according to an embodiment of the present invention includes a frame 1, a seat frame main body 2, a waist revolving unit 3, a moving unit 5, a transmission unit 6 and a driving unit, wherein an upper portion of the seat frame main body 2 is slidably connected to a lower portion of the seat frame main body 2, and the upper portion of the seat frame main body 2 is slidable with respect to the lower portion of the seat frame main body 2 and drives a patient to slide with respect to the lower portion of the seat frame main body 2, so as to adjust the position of the upper portion of the seat frame main body 2 and the position of the patient; it should be noted that, when in use, the upper part of the seat frame main body 2 slides to the bed relative to the lower part of the seat frame main body 2 by adjusting the position of the upper part of the seat frame main body 2, so that a patient can more conveniently move from the bed to the seat frame main body 2, after the patient sits on the upper part of the seat frame main body 2, the upper part of the seat frame main body 2 is driven to drive the patient to slide to the lower part of the seat frame main body 2 from the bedside, so as to finish the movement of the patient from the bed to the seat frame main body 2; the lower part of the seat frame main body 2 is arranged on the top of the waist turning unit 3, the waist turning unit 3 is arranged above the machine frame 1, and the waist turning unit 3 can drive the seat frame main body 2 to rotate relative to the machine frame 1; the mobile unit 5 with the drive unit all installs the lower part of frame 1, mobile unit 5 with the lower part of frame 1 rotates to be connected, the drive unit with the lower part fixed connection of frame 1, waist gyration unit 3, the mobile unit 5 all with transmission unit 6 transmission is connected, the drive unit with transmission unit 6 transmission is connected, for waist gyration unit 3 and mobile unit 5 provide power, in order to drive waist gyration unit 3 is rotatory, the drive mobile unit 5 rotates. The waist turning unit 3 can drive the seat frame main body 2 to rotate while rotating, so that the direction of the seat frame main body 2 can be conveniently adjusted, and the shifting device can be conveniently operated and used in a narrow space; the moving unit 5 rotates and simultaneously drives the machine frame 1, the seat frame main body 2, the waist rotating unit 3 and the like to integrally move, so that the whole position of the shifting device is convenient to adjust, and a patient is convenient to move.

As shown in fig. 1 to 5, the seat frame main body 2 includes a first seat cushion 22, a second seat cushion 23, a slide rail 25, a slide block 26 and a seat frame bottom plate 27, the seat frame bottom plate 27 is connected to the top of the lumbar slewing unit 3, the lumbar slewing unit 3 drives the seat frame bottom plate 27 to rotate, the lumbar slewing unit 3 is installed in the middle of the seat frame bottom plate 27, and the lumbar slewing unit 3 may be coaxially disposed with the seat frame bottom plate 27 to avoid rotational deviation; the utility model discloses a seat frame of seat frame 2, including seat frame bottom plate 27, first cushion 22 and second cushion 23, the both sides of seat frame bottom plate 27 all are provided with slider 26, first cushion 22 with second cushion 23 sets up relatively the top of seat frame bottom plate 27, wherein one side of first cushion 22 (specifically be the one side of keeping away from second cushion 23) and one side of second cushion 23 (specifically be the one side of keeping away from first cushion 22) all are provided with slide rail 25, and slide rail 25 sets up in the lower surface of first cushion 22 or second cushion 23, slide rail 25 with slider 26 cooperation is connected to make first cushion 22 and second cushion 23 can slide for seat frame bottom plate 27, thereby realize the upper portion of seat frame main part 2 for the slip of the lower part of seat frame main part 2, be convenient for adjust the horizontal position of the upper portion of seat frame main part 2. Further, the seat frame main body 2 further includes a first armrest 21, a second armrest 28, and a backrest 24, wherein a lower end of the first armrest 21 is rotatably connected to one side of the first seat cushion 22 (specifically, the side away from the second seat cushion 23), a lower end of the second armrest 28 is rotatably connected to one side of the second seat cushion 23 (specifically, the side away from the first seat cushion 22), one side of the backrest 24 is connected to the first armrest 21, and the other side of the backrest 24 is connected to the second armrest 28. The backrest 24 and the first armrest 21 or the second armrest 28 can be connected by a hook and loop fastener, so that the backrest 24 can be easily detached from the first armrest 21 or the second armrest 28, and thus the rotation of the first armrest 21 or the second armrest 28 relative to the first seat cushion 22 or the second seat cushion 23 is not affected, and the rotation of the first armrest 21 and the second armrest 28 to the horizontal state is facilitated, so that the movement of the patient from the bed or other positions to the first seat cushion 22 and the second seat cushion 23 is not interfered.

In this embodiment, first cushion 22 and second cushion 23 set up relatively, have the interval between first cushion 22 and the second cushion 23, and first cushion 22 and the relative one side of second cushion 23 all are circular-arcly, can conveniently place bedpan or squatting pan in the clearance department between first cushion 22 and second cushion 23 to the patient of being convenient for solves stool and urine on the frame main part 2. Further, the seat frame bottom plate 27 is hollow in the middle, and the inner circle diameter is slightly smaller than the maximum distance between the opposite sides of the first seat cushion 22 and the second seat cushion 23.

In this embodiment, the slide rail 25 is a hard slide rail 25. The slide rail 25 is provided below the first seat cushion 22 or the second seat cushion 23, and the slider 26 is provided on the seat frame bottom plate 27. In other embodiments, the reverse arrangement is possible, with the slide 26 being disposed below the first or second seat cushion 22, 23 and the slide track 25 being disposed on the seat frame bottom plate 27.

In this embodiment, the moving unit 5 includes a driving wheel 51, a universal wheel 52, a wheel shaft 53, a first chain wheel 54, a brake pad 55 and an electromagnetic brake friction pad 56, the universal wheel 52 is mounted on the frame 1, specifically, at the bottom of the frame 1, and one universal wheel 52 is mounted on each of two sides of the frame 1, the universal wheel 52 can rotate relative to the frame 1, the wheel shaft 53 can be rotatably mounted on the frame 1, one driving wheel 51 is mounted on each of two ends of the wheel shaft 53, the first chain wheel 54 is mounted on the wheel shaft 53, the first chain wheel 54 is in transmission connection with the transmission unit 6, and power is transmitted to the first chain wheel 54 through the transmission unit 6, so that the first chain wheel 54 rotates, the driving wheel shaft 53 rotates while the first chain wheel 54 rotates, and the wheel shaft 53 drives the driving wheel 51 to rotate; the electromagnetic brake friction plate 56 is fixed with the frame 1, and the brake plate 55 is installed on the wheel shaft 53. When a patient takes the shifting device, the patient or a nursing staff can control the electromagnetic brake plate 55 to be closed or opened through the control button during the shifting process of the shifting device, so as to control the jointing and the separation of the electromagnetic brake friction plate 56 and the brake plate 55. When the electromagnetic brake friction plate 56 is jointed with the brake plate 55, the shifting device is controlled to stop moving; the control shifting device is movable when the electromagnetic brake pad 56 is separated from the brake pad 55.

In this embodiment, two universal wheels 52 and two driving wheels 51 are respectively provided for driving the frame 1, the waist revolving unit 3, the seat frame main body 2, the driving unit, the transmission unit 6, and the like, which are mounted on the frame 1, to move integrally, and providing a supporting force for the frame 1.

In this embodiment, automatically controlled shifter still includes lift unit 4, lift unit 4 is installed in frame 1, lift unit 4's top with waist gyration unit 3 rotates to be connected, lift unit 4 with transmission unit 6 transmission is connected, through transmission unit 6 with power transmission to lift unit 4, lift unit 4 can drive waist gyration unit 3 and seat frame main part 2 and reciprocate as a whole to the height of adjustment seat frame main part 2, the height of seat frame main part 2 and the high phase-match of patient's bed of being convenient for, the upper portion of seat frame main part 2 slides to the bedside, and can adjust patient's focus height. The lifting unit 4 drives the lumbar pivoting unit 3 to be lifted integrally with the seat frame body 2 without interfering with the rotation of the lumbar pivoting unit 3.

In this embodiment, the lifting unit 4 includes a screw 41, a screw nut 42, a lifting plate 43, a supporting plate 44 and a fourth sprocket, the supporting plate 44 is fixed to the frame 1, the fourth sprocket is in transmission connection with the transmission unit 6, the screw 41 is vertically placed, the screw 41 is a rectangular screw 41, the screw 41 is rotatably installed in the supporting plate 44, the fourth sprocket is installed at an end of the screw 41, the screw nut 42 is assembled on the screw 41 in a threaded manner, the lifting plate 43 is fixed to the top of the screw nut 42, the waist revolving unit 3 is rotatably installed on the lifting plate 43, and the lifting plate 43 is connected to the frame 1. The seat frame bottom plate 27 and the lifting plate 43 are arranged oppositely up and down, and the waist part rotating unit 3 is arranged between the seat frame bottom plate 27 and the lifting plate 43 and is positioned in the middle of the lifting plate 43. A connecting sleeve is arranged at the bottom of one side of the lifting plate 43, the top of the connecting sleeve is fixed with the lower surface of the lifting plate 43, the bottom of the connecting sleeve is fixed with the top of the screw nut 42, the connecting sleeve is hollow, when the screw nut 42 is lifted relative to the screw 41, a storage space is reserved for the screw 41, and the top of the screw 41 is prevented from directly abutting against the lifting plate 43; the support plate 44 is arranged at the bottom of the screw 41, a bearing can be arranged in the support plate 44, and the screw 41 is arranged in the bearing. The power is transmitted to the fourth chain wheel through the transmission unit 6, so that the fourth chain wheel rotates, the fourth chain wheel rotates and simultaneously drives the screw rod 41 to rotate, the screw rod 41 rotates relative to the supporting plate 44, the screw rod nut 42 moves upwards or downwards on the screw rod 41 to drive the connecting sleeve and the lifting plate 43 to lift, and then the waist rotary unit 3 and the seat frame main body 2 are driven to move up and down relative to the machine frame 1. The patient sits on the seat frame main body 2 arranged at the top of the lifting plate 43 and can do lifting movement along with the lifting of the lifting plate 43, so that the patient can take and place articles in environments with different heights.

It should be noted that, in the present invention, the portion of the frame 1 connected to the lifting plate 43 is set to be a telescopic connection, so that the frame 1 does not interfere with the lifting or descending of the lifting plate 43, and can support the lifting plate 43. For example, the rod connecting the frame 1 and the lifting plate 43 is provided as a telescopic rod or a sliding sleeve connection.

In this embodiment, the drive unit includes triaxial shift unit 7 and motor 8, motor 8 installs in frame 1, motor 8 is connected with triaxial shift unit 7 transmission for with power transmission to triaxial shift unit 7. As shown in fig. 6-9, the three-shaft shifting unit 7 includes a housing 71, a power input shaft 72, a waist rotation output shaft 73, a lift output shaft 74, a shift output shaft 75 and a second spline shaft, the second spline shaft is rotatably mounted on the housing 71, the motor 8 is in transmission connection with the power input shaft 72 and transmits power to the power input shaft 72; the power input shaft 72 is in transmission connection with the second spline shaft, the waist rotating output shaft 73, the lifting output shaft 74 and the moving output shaft 75 are respectively connected with one second spline shaft, each second spline shaft is provided with a transmission gear and a sliding gear set, each second spline shaft is correspondingly provided with an electromagnetic shifting fork 76, and the electromagnetic shifting fork 76 is arranged on the case 71 to shift the sliding gear set to be matched with or separated from the transmission gear, so that power transmission is realized or power transmission is prevented. Each sliding gear set comprises two sliding gears 7721, the two sliding gears 7721 are fixedly connected, the electromagnetic shifting fork 76 can shift the two sliding gears 7721 to synchronously move on a second spline shaft, one sliding gear 7721 is used for being connected with the transmission gear in a matched mode, and the two sliding gears 7721 are connected with the second spline shaft in a matched mode. When the sliding gear set is separated from the transmission gear, the transmission gear is sleeved on the second spline shaft, and the transmission gear can rotate independently and does not rotate synchronously with the second spline shaft; when the sliding gear set is matched with the transmission gear, the cylindrical pins 7722 arranged on one of the sliding gears 7721 are matched with the pin holes 7711 on the transmission gear, so that the sliding gear 7721 and the transmission gear can synchronously rotate, the sliding gear set can be driven to rotate by the rotation of the second spline shaft, the sliding gear set can drive the transmission gear to rotate, and the transmission gear, the sliding gear set and the second spline shaft can rotate as a whole. It should be noted that each of the sets of slip gears is controlled by a different electromagnetic fork 76.

In this embodiment, there are three second spline shafts, and one second spline shaft is connected to each of the waist turning output shaft 73, the lifting output shaft 74, and the moving output shaft 75 to realize power transmission. The three second spline shafts are respectively represented by a waist spline shaft 77, a lift spline shaft 78 and a shift spline shaft 79, the waist spline shaft 77 corresponds to the waist revolving output shaft 73, the lifting spline shaft 78 corresponds to the lifting output shaft 74, the moving spline shaft 79 corresponds to the moving output shaft 75, the transmission gear on the waist spline shaft 77 is represented as a first transmission gear 771, the sliding gear set is represented as a first sliding gear set 772, the transmission gear on the lifting spline shaft 78 is represented as a second transmission gear 781, the sliding gear set is represented as a second sliding gear set 782, the transmission gear on the moving spline shaft 79 is represented as a third transmission gear 791, and the sliding gear set is represented as a third sliding gear set 792, which respectively illustrate power transmission paths between the power input shaft 72 and the waist revolving output shaft 73, between the lifting output shaft 74 and between the moving output shaft 75.

The power input shaft 72 is connected with one end of the waist spline shaft 77, the other end of the waist spline shaft 77 is fixed with a first gear 773, and power is transmitted to the lifting spline shaft 78 through the first gear 773; the waist spline shaft 77 is sleeved with a first transmission gear 771 and a first sliding gear set 772; a transmission shaft 775 is rotatably mounted on the case 71, a second gear 774 is arranged at one end of the transmission shaft 775, and the other end of the transmission shaft 775 is connected with the waist rotation output shaft 73; the second gear 774 is engaged with the first transmission gear 771, and the power input shaft 72 transmits power to the waist spline shaft 77 to drive the waist spline shaft 77 to rotate. When the waist spline shaft 77 rotates, the electromagnetic fork 76 controls the first sliding gear set 772 to be separated from the first transmission gear 771, and the first transmission gear 771 is slidably sleeved on the waist spline shaft 77, at the moment, the waist spline shaft 77 only drives the first sliding gear set 772 and the first gear 773 to rotate, but not drives the first transmission gear 771 to rotate, and at the moment, the waist spline shaft 77 transmits power to the lifting spline shaft 78 through the first gear 773; when the electromagnetic shift fork 76 controls the first slipping gear set 772 to be matched and connected with the first transmission gear 771, the waist spline shaft 77 transmits power to the first slipping gear set 772 to drive the first slipping gear set 772 to rotate, the first slipping gear set 772 drives the first transmission gear 771 to rotate, the first transmission gear 771 drives the second transmission gear 774 and the transmission shaft 775 to rotate, and the power is transmitted to the waist rotary output shaft 73 through the transmission shaft 775. The power transmission path is: the power input shaft 72, the waist spline shaft 77, the first sliding gear set 772, the first transmission gear 771, the second gear 774, the transmission shaft 775 and the waist output shaft.

One end of the lifting spline shaft 78 is connected with the lifting output shaft 74, and a second transmission gear 781 on the lifting spline shaft 78 is meshed with the first gear 773. The waist spline shaft 77 drives the first gear 773 to rotate, and the first gear 773 drives the second transmission gear 781 to rotate. Since the second transmission gear 781 is sleeved on the lifting spline shaft 78, when the electromagnetic fork 76 controls the second slipping gear set 782 to be separated from the second transmission gear 781, the second transmission gear 781 rotates on the lifting spline shaft 78 alone, but the lifting spline shaft 78 does not rotate, and at this time, power is not transmitted to the lifting output shaft 74. When the electromagnetic shift fork 76 controls the second sliding gear set 782 to be matched with the second transmission gear 781, the second transmission gear 781 rotates on the lifting spline shaft 78 and simultaneously drives the second sliding gear set 782 to rotate, the second sliding gear set 782 drives the lifting spline shaft 78 to rotate, and the lifting spline shaft 78 drives the lifting output shaft 74 to rotate. The power transmission path is: power input shaft 72-waist spline shaft 77-first gear 773-second drive gear 781-second glide gear set 782-lifting spline shaft 78-lifting output shaft 74.

One end of the moving spline shaft 79 is connected to the moving output shaft 75, and the third transmission gear 791 on the moving spline shaft 79 is meshed with the first slipping gear set 772. The waist spline shaft 77 drives the first sliding gear set 772 to rotate, and the first sliding gear set 772 drives the third transmission gear 791 to rotate. Since the third transmission gear 791 is sleeved on the moving spline shaft 79, when the electromagnetic fork 76 controls the third sliding gear set 792 to be separated from the third transmission gear 791, the third transmission gear 791 rotates on the moving spline shaft 79 alone, but the moving spline shaft 79 does not rotate, and at this time, power is not transmitted to the moving output shaft 75. When the electromagnetic fork 76 controls the third sliding gear set 792 to be matched with the third transmission gear 791, the third transmission gear 791 rotates on the movable spline shaft 79 and simultaneously drives the third sliding gear set 792 to rotate, the third sliding gear set 792 drives the movable spline shaft 79 to rotate, and the movable spline shaft 79 drives the movable output shaft 75 to rotate. The power transmission path is: power input shaft 72-waist spline shaft 77-first glide gear set 772-third drive gear 791-third glide gear set 792-moving spline shaft 79-moving output shaft 75.

The utility model discloses a motor 8 shifts unit 7 with power transmission to triaxial, and rethread triaxial shifts unit 7 with power transmission to waist gyration output shaft 73, lift output shaft 74 or removal output shaft 75 respectively, realizes corresponding rotation and lift action, need not to carry out manual operation to the shifter, has improved human-computer interaction, provides supplementary, alleviates nursing staff's burden for the patient effectively.

Further, the motor 8 may transmit power to the power input shaft 72 through the timing pulley 61 and the timing belt 62, specifically, the timing pulley 61 is mounted on the output shaft of the motor 8, one end of the timing belt 62 is mounted on the timing pulley 61, and the other end of the timing belt 62 is connected with the power input shaft 72.

In this embodiment, the transmission unit 6 includes a first transmission mechanism, a second transmission mechanism and a third transmission mechanism, the first transmission mechanism is connected to the waist revolving unit 3 and the waist revolving output shaft 73, and is configured to transmit the power of the waist revolving output shaft 73 to the waist revolving unit 3 to drive the waist revolving unit 3 to rotate; the second transmission mechanism is connected with the moving unit 5 and the moving output shaft 75, and is used for transmitting the power of the moving output shaft 75 to the moving unit 5 to drive the moving unit 5 to rotate; the third transmission mechanism is connected with the lifting unit 4 and the lifting output shaft 74, and is used for transmitting the power of the lifting output shaft 74 to the lifting unit 4 to drive the lifting unit 4 to lift.

In this embodiment, waist gyration unit 3 includes waist gyration gear 31, first drive mechanism includes first bevel gear 65, second bevel gear 66, spline sleeve 67, first spline shaft 68 and straight-teeth gear 69, first bevel gear 65 with waist gyration output shaft 73 is connected, second bevel gear 66 with first bevel gear 65 meshing connection, spline sleeve 67 with second bevel gear 66 is connected, spline sleeve 67 cover is established on first spline shaft 68, the one end of first spline shaft 68 is installed in spline sleeve 67, straight-teeth gear 69 sets up the other end of first spline shaft 68, straight-teeth gear 69 with waist gyration gear 31 meshing connection. The power transmission path is: waist slewing output shaft 73-first bevel gear 65-second bevel gear 66-spline sleeve 67-first spline shaft 68-spur gear 69-waist slewing gear 31. It should be noted that the lifting plate 43 is provided with a through hole through which the first spline shaft 68 passes, the seat frame bottom plate 27 is provided with the circular arc slide rail 25, and an end portion of the first spline shaft 68 is mounted in the circular arc slide rail 25 so that the first spline shaft 68 and the circular arc slide rail 25 can slide relative to each other. When the elevating plate 43 moves up and down, the spur gear 69 and the first spline shaft 68 can move up and down with the elevating plate 43, so that the first spline shaft 68 can move up and down relative to the spline sleeve 67 by the fitting connection of the first spline shaft 68 to the spline sleeve 67; when the straight gear 69 rotates, the first spline shaft 68 is fixed, the straight gear 69 drives the waist slewing gear 31 to rotate, the seat frame bottom plate 27 is driven to rotate, and when the seat frame bottom plate 27 rotates, the first spline shaft 68 and the circular arc slide rail 25 slide relatively through the arranged circular arc slide rail 25, so that the first spline shaft 68 is prevented from interfering with the rotation of the seat frame main body 2 and the waist slewing unit 3.

In the present embodiment, the angle of rotation of the waist swing gear 31 is 180 °.

In this embodiment, the second transmission mechanism includes a second sprocket 63 and a first chain 64, the second sprocket 63 is mounted at an end of the moving output shaft 75, one side of the first chain 64 is mounted on the second sprocket 63, and the other side of the first chain 64 is connected to the moving unit 5, specifically, the first sprocket 54 of the moving unit 5, so as to transmit power to the first sprocket 54, so that the first sprocket 54 rotates to drive the pulley shaft 53 to rotate. The power transmission path is: moving output shaft 75-second sprocket 63-second chain 614-first sprocket 54.

In this embodiment, the third transmission mechanism includes a coupler 610, a worm wheel 611, a worm 612, a third sprocket 613, and a second chain 614, the coupler 610 is connected to the lifting output shaft 74, the worm wheel 611 is connected to the coupler 610, the worm 612 is connected to the worm wheel 611 in a matching manner, the third sprocket 613 is installed at one end of the worm 612, one side of the second chain 614 is installed on the third sprocket 613, the other side of the second chain 614 is connected to the lifting unit 4, specifically, the fourth sprocket of the lifting unit 4, so that the fourth sprocket rotates to drive the lead screw 41 to rotate, and the lead screw nut 42 is lifted. The power transmission path is: the lifting output shaft 74, the coupler 610, the worm gear 611, the worm 612, the third chain wheel 613, the second chain 614, the fourth chain wheel and the lead screw 41.

The working process of the utility model is as follows:

when a patient is in bed, the electric control shifting device is pushed to the bedside, the upper part of the seat frame main body 2 is slid to the bedside, the lock catch on the backrest 24 is opened, the first armrest 21 and the second armrest 28 are rotated to be in a horizontal state relative to the seat frame bottom plate 27, the patient moves to the first cushion 22 and the second cushion 23 by himself or under the accompany of medical staff, then the first cushion 22 and the second cushion 23 are slid to the seat frame bottom plate 27 to be restored to an original state, the first armrest 21 and the second armrest 28 are rotated to be in an armrest working state, and the backrest 24 is fixed with the first armrest 21 and the second armrest 28.

When the toilet seat is used, a patient sits on the first seat cushion 22 and the second seat cushion 23, the patient keeps still relative to the seat frame main body 2 all the time, and the height of the gravity center of the patient is controlled by controlling the lifting unit 4, so that the toilet seats with different heights or articles at different heights can be taken and placed; when a patient sits on the shifting device, the waist turning unit 3 controls the relative rotation of the seat frame main body 2, so that the patient can turn around and turn around in narrow spaces such as a toilet, and the turning angle is 180 degrees every time.

When the height of the center of gravity of a patient needs to be adjusted, the motor 8 drives the three-axis gear shifting unit 7 to transmit power to the lifting output shaft 74, the lifting output shaft 74 transmits power to the coupler 610 and the worm wheel 611, the worm wheel 611 is driven to rotate, the worm wheel 611 drives the worm 612 to rotate, the worm 612 drives the third chain wheel 613 to rotate, the third chain wheel 613 drives the fourth chain wheel to rotate through the second chain 614, the fourth chain wheel drives the lead screw 41 to rotate, the lead screw nut 42 moves upwards or downwards on the lead screw 41 while the lead screw 41 rotates, the lead screw nut 42 drives the lifting plate 43 to move, and the lifting plate 43 drives the waist revolving unit 3 and the seat frame main body 2 to move upwards or downwards, so that the height of the center of the patient on the seat frame main body 2 can be adjusted.

When the direction of the seat frame main body 2 needs to be adjusted, the motor 8 drives the triaxial gear shifting unit 7 to transmit power to the waist rotary output shaft 73, the waist rotary output shaft 73 transmits the power to the first bevel gear 65, the first bevel gear 65 rotates while driving the second bevel gear 66 to rotate, the second bevel gear 66 drives the spline sleeve 67 and the first spline shaft 68 to rotate, the first spline shaft 68 drives the straight gear 69 to rotate, the straight gear 69 drives the waist rotary gear 31 to rotate, the waist rotary gear 31 drives the seat frame main body 2 to rotate, and the direction of the seat frame main body 2 is adjusted.

When the electronic control shifting device needs to be moved, the motor 8 drives the three-axis gear shifting unit 7 to transmit power to the moving output shaft 75, the moving output shaft 75 drives the second chain wheel 63 to rotate, the second chain wheel 63 drives the first chain wheel 54 to rotate through the second chain 614, the first chain wheel 54 drives the axle 53 to rotate, the axle 53 drives the driving wheel 51 to rotate, and the electronic control shifting device is moved.

It should be noted that, in the present invention, the waist turning unit 3, the lifting unit 4 and the moving unit 5 may move simultaneously or not. Preferably, to ensure the safety of the use of the electrically controlled displacement device, the patient should try to avoid the simultaneous movement of the waist turning unit 3, the lifting unit 4 and the moving unit 5 when operating the displacement device.

To sum up, the embodiment of the utility model provides an automatically controlled shifter, it sets up the upper portion of seat frame main part 2 and the lower part of seat frame main part 2 into sliding connection, make the upper portion of seat frame main part 2 slide for the lower part of seat frame main part 2, make the patient can carry out timely adjustment to the position of seat frame main part 2 according to the demand of oneself, be convenient for the patient from the bed or on other positions move seat frame main part 2, thereby make things convenient for patient's operation to use, can provide the assistance for the patient effectively, alleviate nursing staff's burden. And, the utility model discloses a waist gyration unit 3 that the setting is connected with the drive unit transmission for seat frame main part 2 can rotate, and can adjust seat frame main part 2's direction through the drive unit, and the patient of being convenient for operates the use to the shifter in narrow and small space.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides an automatically controlled shifter which characterized in that, includes frame, seat frame main part, waist gyration unit, mobile unit, drive unit and drive unit, the upper portion of seat frame main part with the lower part sliding connection of seat frame main part, the lower part of seat frame main part is installed the top of waist gyration unit, waist gyration unit rotationally installs the top of frame, the mobile unit with the lower part of frame is rotated and is connected, the drive unit with the lower part of frame is fixed, waist gyration unit the mobile unit all with the drive unit transmission is connected, the drive unit with the drive unit transmission is connected, in order to drive waist gyration unit is rotatory, the drive the mobile unit rotates.

2. The electrically controlled shifting device of claim 1, wherein the seat frame body comprises a first seat cushion, a second seat cushion, a first armrest, a second armrest, a backrest, a slide rail, a slide block and a seat frame bottom plate, the seat frame bottom plate is connected with the top of the waist turning unit, the slide block is arranged on both sides of the seat frame bottom plate, the first seat cushion and the second seat cushion are oppositely arranged above the seat frame bottom plate, the slide rail is arranged on one side of the first seat cushion and one side of the second seat cushion, and the slide rail is in fit connection with the slide block; the lower extreme of first handrail with one side of first cushion is rotated and is connected, the lower extreme of second handrail with one side of second cushion is rotated and is connected, one side that leans against is connected first handrail, the opposite side that leans against is connected the second handrail.

3. The electrically controlled shifting device according to claim 1, further comprising a lifting unit, wherein the lifting unit is mounted on the frame, the top of the lifting unit is rotatably connected with the waist revolving unit, and the lifting unit is in transmission connection with the transmission unit.

4. The electrically controlled shifting device according to claim 3, wherein the lifting unit comprises a lead screw, a lead screw nut, a lifting plate, a supporting plate and a fourth chain wheel, the supporting plate is fixed to the frame, the fourth chain wheel is in transmission connection with the transmission unit, the lead screw is rotatably mounted in the supporting plate, the fourth chain wheel is mounted at an end of the lead screw, the lead screw nut is in threaded fit with the lead screw, the lifting plate is fixed to a top of the lead screw nut, the waist revolving unit is rotatably mounted on the lifting plate, and the lifting plate is connected to the frame.

5. The electrically controlled shifting device of claim 3, wherein the drive unit comprises a three-axis shifting unit and an electric motor, the motor is arranged on the frame, the three-shaft gear shifting unit comprises a case, a power input shaft, a waist rotary output shaft, a lifting output shaft, a moving output shaft and a second spline shaft, the second spline shaft is rotatably arranged on the case, the motor is in transmission connection with the power input shaft, the power input shaft is in transmission connection with the second spline shafts, the waist rotating output shaft, the lifting output shaft and the moving output shaft are respectively connected with one second spline shaft, each second spline shaft is provided with a transmission gear and a sliding gear set, each second spline shaft is correspondingly provided with an electromagnetic shifting fork, the electromagnetic shifting fork is arranged on the case to shift the sliding gear set to be matched with or separated from the transmission gear.

6. The electrically controlled shifting device according to claim 5, wherein the transmission unit comprises a first transmission mechanism connected to the waist turning unit and the waist turning output shaft, a second transmission mechanism connected to the moving unit and the moving output shaft, and a third transmission mechanism connected to the lifting unit and the lifting output shaft.

7. The electrically controlled shifting device according to claim 6, wherein the waist turning unit comprises a waist turning gear, the first transmission mechanism comprises a first bevel gear, a second bevel gear, a spline sleeve, a first spline shaft and a spur gear, the first bevel gear is connected with the waist turning output shaft, the second bevel gear is connected with the first bevel gear in a meshing manner, the spline sleeve is connected with the second bevel gear, one end of the first spline shaft is installed in the spline sleeve, the spur gear is arranged at the other end of the first spline shaft, and the spur gear is connected with the waist turning gear in a meshing manner.

8. The electrically controlled shifting device according to claim 6, wherein the second transmission mechanism comprises a second sprocket mounted at an end of the moving output shaft and a first chain having one side mounted on the second sprocket and the other side connected to the moving unit.

9. The electrically controlled shifting device according to claim 6, wherein the third transmission mechanism comprises a coupling, a worm gear, a worm, a third sprocket and a second chain, the coupling is connected to the lifting output shaft, the worm gear is connected to the coupling, the worm is connected to the worm gear in a matching manner, the third sprocket is installed at one end of the worm, one side of the second chain is installed on the third sprocket, and the other side of the second chain is connected to the lifting unit.

10. The electrically controlled shifting device according to claim 1, wherein the shifting unit comprises a driving wheel, a universal wheel, a wheel axle, a first chain wheel, a brake pad and an electromagnetic brake pad, the universal wheel is mounted at the bottom of the frame, the wheel axle is rotatably mounted on the frame, the driving wheel is mounted at each end of the wheel axle, the first chain wheel is mounted on the wheel axle, the first chain wheel is in transmission connection with the transmission unit, the electromagnetic brake pad is fixed to the frame, and the brake pad is mounted on the wheel axle.

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