CN106955207A - Shifting machine for handicapped person - Google Patents

Abstract

The invention relates to a lift for handicapped persons in the field of nursing equipment. The lifting machine includes: a base; a frame; a front swivel caster, a rear swivel caster; a fixing piece; a hoist, including a reel, a cable, a first motor, a second motor and rollers, one end of the cable is connected to the reel, The first motor drives the reel to rotate so that the cable is extended or shortened, the second motor drives the roller to roll on the fixed part and then drives the whole crane to move horizontally in the front and rear direction; and the hanger, the other end of the cable is connected to the hanger, The base includes two telescopic devices, and when the entire crane moves horizontally along the front and rear directions, the two telescopic devices will extend or shorten correspondingly as the center of gravity of the lift moves forward or backward. According to the invention, the vertical and horizontal movements of the person with reduced mobility are separated, so that the movement of the person with reduced mobility is more stable. Moreover, the two telescopic devices of the base can be extended or shortened, so the size of the base can be adjusted, and the movement flexibility of the lift is higher.

Description

Lifts for people with reduced mobility

technical field

The invention relates to the field of nursing equipment, and more specifically relates to a lifting machine for people with disabilities.

Background technique

The lifting machine is used to move people with limited mobility from one location to another. It can greatly reduce the nursing intensity of the nursing staff, making the nursing work more convenient, efficient, safe and comfortable.

The current lifting machine mainly uses the principle of leverage to lift the handicapped person. First, the handicapped person is wrapped with a sling, and then the sling is connected to the end lifting point of the lever. The other end of the lever is hinged to the frame, so the lifting process of the handicapped person is the process of the lever rotating around the hinge, the trajectory of the lifting point is a circular arc, and the handicapped person moves in the horizontal direction while rising. This way of lifting people with disabilities is not stable. Due to the sub-movement in the horizontal direction, people with disabilities will shake back and forth, and the user experience is not good.

In addition, in order to hoist the handicapped person on the hospital bed, the booms of the existing lifts are relatively long. For the sake of stability, the size of the bottom support structure is generally large, resulting in the problem of inflexible movement.

Therefore, there is a need for a lift that can solve or at least alleviate some or all of the above-mentioned disadvantages of the prior art.

Contents of the invention

The technical problem to be solved by the present invention is to provide a lifting machine which aims at solving or at least alleviating some or all of the shortcomings in the above-mentioned prior art.

The technical scheme adopted in the present invention is as follows.

According to the present invention, there is provided a lift for people with reduced mobility, wherein the lift comprises a base; a frame connected to the base; a front universal joint connected to the base and the frame Casters and rear universal casters; Fixing parts, the fixing parts are fixedly arranged on the frame; Cranes, the cranes include reels, cables, first motors, second motors and rollers, the cables One end is connected to the reel, the first motor drives the reel to rotate so that the cable is stretched or shortened, the second motor drives the roller to roll on the fixing part and then drives the entire The crane moves horizontally in the front-back direction; and a hanger, the other end of the cable is connected to the hanger, wherein the base includes two telescopic devices, when the whole crane moves horizontally in the front-back direction, The two telescopic devices are correspondingly extended or shortened as the center of gravity of the moving machine moves forward or backward.

Preferably, each telescopic device includes a fixed sleeve, a telescopic sleeve, a main shaft and a sliding sleeve, the telescopic sleeve is set on the fixed sleeve, and the main shaft and the sliding sleeve are arranged on Inside the fixed sleeve and the telescopic sleeve, the diameter of the sliding sleeve changes stepwise along the axial direction and includes a thick end and a thin end, and the outer surface of the thick end of the sliding sleeve is in contact with the fixed The sleeve is threadedly connected, the inner surface of the thick end of the sliding sleeve is connected to the main shaft through a spline, and the thin tail end of the sliding sleeve is connected to the tail end of the telescopic sleeve through a shaft hole nesting method , the main shaft is also provided with a driven gear, and the driven gear meshes with the driving gear of the driving source.

Preferably, the fixing member is an I-shaped steel, and two ends of the I-shaped steel are connected with I-shaped steel stop plates by bolts.

Preferably, the hanger is provided with a first boom, a second boom and a third boom in the horizontal plane, the angle between the first boom and the second boom is 60°, the The angles between the third boom and the first boom and the second boom are both 150°.

Preferably, a first tooth-shaped structure is provided on the circumference of the roller, and a second tooth-shaped structure meshing with the first tooth-shaped structure is provided on the surface of the fixing member engaged with the roller.

Preferably, the frame includes two uprights extending upward from the two retractable devices, a back cushion is arranged between the two uprights, the back cushion is arc-shaped and a safety belt is arranged on the back cushion .

Preferably, the height of the cushion is adjustable.

Preferably, the cushion is connected to the two uprights through ribs, vertical slides are provided on both sides of the ribs, pins are arranged in the vertical slides, and the heads of the pins are set on the sides of the ribs. In the above-mentioned vertical slideway, the tail of the pin passes through the two uprights and is threadedly connected with the locking handle.

According to one or more embodiments of the present invention, beneficial effects as described below can be achieved.

According to an exemplary embodiment of the present invention, the first motor drives the reel to rotate so that the cable is extended or shortened, thereby realizing the movement of the handicapped person in the vertical direction, and the second motor drives the The rollers roll on the fixing part and then drive the entire crane to move horizontally along the front and back directions, thereby realizing the horizontal movement of the handicapped person. Since the lift decomposes the vertical movement and the horizontal movement of the handicapped person into two independent movements, the handicapped person can be lifted vertically to avoid horizontal shaking, so that the handicapped person is more stable when exercising , better user experience. Moreover, according to an exemplary embodiment of the present invention, the base includes two telescopic devices, and when the entire crane moves horizontally in the front-rear direction, the two telescopic devices follow the forward movement of the center of gravity of the lifting machine. It can be extended or shortened accordingly by moving or retreating, that is to say, on the one hand, this ensures the overall stability of the lift, and on the other hand, it also minimizes the bottom size of the lift while ensuring stability, thus It adapts to the stability requirements of different hoisting environments, and makes the lifting machine compact in structure and flexible in movement, and can easily transfer people with disabilities between hospital beds and wheelchairs. This alleviates or avoids the disadvantages of the prior art.

In some embodiments, since the fixing piece is an I-beam and the two ends of the I-beam are connected with I-beam stop plates by bolts, it can prevent the horizontal movement of the crane in the front-rear direction from exceeding the limit of the I-beam. fall while traveling.

In other embodiments, since the angle between the first boom and the second boom is 60°, the angle between the third boom and the first boom and the second boom is 60°. The angles between them are all 150°. In this case, the handicapped person is close to the sitting position when being lifted, which is safe and stable.

In some other embodiments, the circumference of the roller is provided with a first tooth-shaped structure, and the surface of the fixing member engaged with the roller is provided with a second tooth-shaped structure meshed with the first tooth-shaped structure. structure, thus not only avoiding the instability caused by the sliding or slipping of the rollers, but also making the movement of the crane more precise, so that it is easy to control.

In some other embodiments, the frame includes two uprights extending upward from the two telescopic devices, a cross bar is connected between the upper ends of the two uprights, and the upper ends of the two uprights are respectively Forearms extending forward and toward each other are connected, and the front ends of the two forearms are connected together through a connecting device, thereby saving space on both sides and facilitating steering,

In some other embodiments, the back cushion is curved and the seat belt is provided on the back cushion, thereby increasing the contact area between the person with disabilities and the cushion, making the person with disabilities more comfortable and stable.

In some other embodiments, the height of the cushion is adjustable, so that it can meet the needs of different people with disabilities.

Description of drawings

The features, advantages and technical and industrial significance of exemplary embodiments of the invention will be described below with reference to the accompanying drawings, in which like reference numerals refer to like elements, and in which:

Fig. 1 is a three-dimensional structural schematic diagram of a lifting machine for people with disabilities according to an exemplary embodiment of the present invention;

Fig. 2 is a front structural schematic diagram of a lift according to an exemplary embodiment of the present invention;

Fig. 3 is a left view structural schematic diagram of a lift according to an exemplary embodiment of the present invention;

Fig. 4 is a top structural schematic diagram of a lift according to an exemplary embodiment of the present invention;

Fig. 5 is a structural schematic diagram of the assembled crane and I-beam according to an exemplary embodiment of the present invention;

Fig. 6 is a structural schematic diagram of a back cushion and its connection with a column according to an exemplary embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a telescoping device according to an exemplary embodiment of the present invention;

Fig. 8 is a side view of the telescoping device according to an exemplary embodiment of the present invention at the time of maximum elongation.

Explanation of reference numbers:

1 Rear swivel casters 2 Upright post 3 Push-pull handle

4 Rib 5 Forearm 6 Crossbar

7 I-beam 8 I-beam stop plate 9 Crane

10 Hanger bar 11 Safety belt 12 Back cushion

13 Telescoping device 14 Front swivel caster 21 Drive gear

22 Geared motor 23 Fixed sleeve 24 Telescopic sleeve

25 Slip sleeve stop plate 26 Slip sleeve 27 Spindle

28 Driven gear 29 Ball bearing 30 Locating ring

31 Rib 32 Pin 33 Locking handle

40 Drum 41 Cable 42 Roller

43 First motor 44 Second motor

detailed description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The description of the exemplary embodiments is for the purpose of illustration only, and in no way limits the invention and its application or usage. Moreover, the dimensions and proportions of components in the drawings are only schematic and do not strictly correspond to actual products.

A lift including an exemplary embodiment of the present invention will be described below with reference to FIGS. 1-8 . Fig. 1 is a schematic perspective view of a moving machine according to an exemplary embodiment of the present invention. Fig. 2 is a front structural schematic diagram of a lifting machine according to an exemplary embodiment of the present invention. Fig. 3 is a left view structural schematic diagram of a lift according to an exemplary embodiment of the present invention. Fig. 4 is a schematic top view of a lifting machine according to an exemplary embodiment of the present invention. Fig. 5 is a structural schematic diagram of the assembled crane and I-beam according to the exemplary embodiment of the present invention. Fig. 6 is a structural schematic diagram of a back cushion and its connection with a column according to an exemplary embodiment of the present invention. Fig. 7 is a schematic structural diagram of a telescoping device according to an exemplary embodiment of the present invention. Fig. 8 is a side view of the telescoping device according to an exemplary embodiment of the present invention at the time of maximum elongation.

Here, it should be noted that in the present invention, terms related to orientation such as "front", "rear", "upper", "lower", "left", "right" refer to the user (i.e. the user with limited mobility). or) is defined when using a lift. For example, when the user sits on the lift, the direction facing the user is the "front" direction, the direction facing the user's back is the "rear" direction, and the direction on the user's left hand side is the "left" direction. The direction to the user's right hand side is the "right" side.

As shown in Figure 1-4, the lifting machine includes a base, a frame connected to the base, a fixture fixed on the frame, a crane 9 that can move horizontally in the front and rear directions on the fixture, and a cable connected to the crane. The hanger 10. In use, the sling that wraps the handicapped person is hung on the hanger 10. When the cable is stretched or shortened in the vertical direction, the handicapped person can move downward or upward in the vertical direction. 9. When moving horizontally along the front-back direction, the person with disabilities can move horizontally along the front-back direction. This means that the vertical and horizontal movements of the person with reduced mobility are performed separately.

In the embodiment shown in FIGS. 1-4 , the base includes two telescopic devices 13 symmetrically arranged left and right. When the whole crane 9 moves horizontally along the front-back direction, the two telescopic devices 13 are correspondingly extended or shortened as the center of gravity of the lift moves forward or backward. In this way, by adjusting the size of the bottom to meet the stability requirements of different hoisting environments, the lifting machine has a compact structure and flexible movement, and can easily transfer people with disabilities between hospital beds and wheelchairs.

The frame includes two uprights 2 , two forearms 5 and a cross bar 6 . The two uprights 2 extend vertically upwards respectively from the two telescopic devices 13 , and the upper ends of the two uprights 2 are connected by a cross bar 6 , and each upright 2 and the cross bar 6 are reinforced with reinforcing ribs 4 . The rear ends of the two forearms 5 are respectively connected to the two ends of the crossbar 6, and the two forearms 5 are extended forward and move closer to each other, and the front ends of the two forearms 5 are connected together by a connecting device, so that the crossbar 6, the two The connecting device between the first forearm 5 and the two forearms 5 constitutes a trapezoidal structure, thereby saving space on both sides and facilitating steering.

The telescopic device 13 is connected to the column 2 through bolts, the rear universal caster 1 is connected to the column 2, and the front universal caster 14 is connected to the front end of the telescopic device 13, so that the four casters are in contact with the ground to realize the overall movement of the lift . The I-beam 7 as the above-mentioned fixing member is connected to the above-mentioned trapezoidal structure by bolts.

The crane 9 includes a drum 40 , a cable 41 , a roller 42 , a first motor 43 and a second motor 44 . One end of the cable 41 is connected to the reel 40 , and the first motor 43 drives the reel 40 to rotate so that the cable 41 is extended or shortened. The other end of the cable 41 is connected to the hanger 10 . The second motor 44 drives the roller 42 to roll on the bottom plate of the I-beam 7 and then drives the entire crane 9 to move horizontally along the front and rear directions. This rolling back and forth on the I-beam 7 of crane 9 has increased the scope of hoisting. Correspondingly, the telescopic device 13 can automatically extend and shorten as the crane 9 rolls back and forth on the I-beam 7, so that the distance between the front swivel caster 14 and the rear swivel caster 1 increases or shortens, In this way, on the one hand, it is ensured that the center of gravity of lifting the handicapped person is always within the four-point support range of the front swivel caster 14 and the rear swivel caster 1 of the shifter, thereby ensuring the overall stability of the shifter; The bottom size of the lift is minimized under the premise of ensuring stability, and the movement is flexible.

The two ends of I-beam 7 are connected with I-beam stop plate 8 by bolts, which can prevent the motion of crane 9 from falling beyond the stroke of I-beam 7. The hanger 10 has three booms in the horizontal direction, and the angles between the three booms are respectively 150°, 150°, and 60°. The suspension points are respectively connected with the three booms of the hanger 10, wherein the two adjacent booms at a 60° angle are connected to the suspension points of the two thighs of the disabled person, and the other suspension arm is connected to the suspension point of the lower back of the disabled person , so that the three-point suspension hoisting makes the handicapped person close to the sitting position when being hoisted, which is safe and stable. Of course, it can be understood that the angles between the three booms can be set as required.

A back cushion 12, preferably a curved sponge, is arranged between the two uprights 2 . A safety belt 11 can also be provided on the back cushion 12 . When the handicapped person needs long-distance sports, the front and rear positions and the lowering distance of the crane 9 can be adjusted so that the back of the handicapped person fits the back cushion 12, and then the safety belt 11 is fastened. The back cushion 12 and the safety belt 11 fix the handicapped person from the circumferential direction, preventing the handicapped person from shaking left and right and back and forth during the exercise. The curved design of the back cushion 12 can also increase the contact area between the handicapped person and the back cushion 12, making the handicapped person more comfortable and stable.

The structure of the cushion will be described in detail below in conjunction with FIG. 6 . As shown in FIG. 6 , the back cushion 12 is connected to the column 2 through two upper and lower ribs 31 . Back cushion 12 is fixedly connected on the rib plate 31, rib plate 31 both sides are provided with the slideway in vertical direction, the slideway on rib plate 31 both sides is connected with the head of pin 32 with the form of kinematic pair. The pin 32 runs through the column 2 and the tail of the pin 32 is threadedly connected with the locking handle 33 . When the height of the back cushion 12 needs to be adjusted, the locking handle 33 is turned counterclockwise, the pretightening force of the pin 32 disappears, and the rib plate 31 can move up and down freely. When the back cushion 12 is adjusted to an appropriate height, the locking handle 33 is turned clockwise, and the pin 32 generates a pre-tightening force so that the rib plate 31 is compressed and locked. The locking of the rib plate 31 is realized by the cooperation of the four groups of pins 32 and the locking handle 33, which is stable and reliable. It can be understood that the back cushion 12 can also adopt other structures.

The structure of the telescopic device will be described in detail below in conjunction with FIG. 7 . The upper figure in FIG. 7 represents the external structure axonometric view of the telescopic device 13 , and the lower figure represents the internal structure axonometric view of the telescopic device 13 . The fixed sleeve 23 is fixed on the column 2 by bolts, and the telescopic sleeve 24 and the fixed sleeve 23 are provided with slideways along the axial direction, so the telescopic sleeve 24 can slide axially relative to the fixed sleeve 23, but the telescopic sleeve 24 cannot rotate relative to the fixed sleeve 23. The outer surface of the ball bearing 29 is in interference fit with the fixing sleeve 23 , and is axially fixed by the positioning ring 30 and the stepped structure of the inner surface of the fixing sleeve 23 . The main shaft 27 is in interference fit with the inner surface of the ball bearing 29, and the main shaft 27 can rotate freely. The driven gear 28 is connected to the main shaft 27 by a flat key, and is axially fixed by a shaft shoulder and a threaded sleeve, so the driven gear 28 and the main shaft 27 move together. The diameter of the sliding sleeve 26 changes stepwise along the axial direction and includes a thick head end and a thin tail end. The inner surface of the thick end of the sliding sleeve 26 is splined to the main shaft 27 , so the sliding sleeve 26 rotates with the main shaft 27 and can slide on the main shaft 27 . The outer surface of the thick end of the sliding sleeve 26 is threadedly connected with the inner surface of the fixed sleeve 23, so the rotation of the sliding sleeve 26 will cause itself to move axially. The tail end of the telescopic sleeve 24 is nested with the thin tail end of the sliding sleeve 26 through the shaft hole, so the telescopic sleeve 24 and the sliding sleeve 26 can rotate relative to each other along the circumference. However, due to the constraints of the stepped structure of the sliding sleeve 26 and the sliding locking plate 25 , the telescopic sleeve 24 and the sliding sleeve 26 do not move relative to each other in the axial direction. The sliding sleeve stop plate 25 is fixedly connected with the sliding sleeve 26 by screws.

When the telescopic device 13 works, the output shaft of the reduction motor 22 rotates to drive the driving gear 21 to rotate, and then drives the driven gear 28 meshed with the driving gear 21 to rotate, and the driven gear 28 drives the main shaft 27 to rotate, and the main shaft 27 drives the sliding sleeve 26 turns. When the sliding sleeve 26 rotates, it will move axially, and then drive the telescopic sleeve 24 to move axially. In this way, the telescopic sleeve 24 generates relative movement in the axial direction relative to the fixed sleeve 23, thereby realizing the telescopic function.

When the lifting machine needs to lift the handicapped person on the hospital bed, push the lifting machine to the best position, so that the telescopic device 13 and the front universal caster 14 of the lifting machine go deep under the sick bed, and the crane of the lifting machine 9 hang above the sickbed. At this time, if the crane 9 has not arrived directly above the person with disabilities, it can be controlled to move the crane 9 forward to directly above the person with disabilities. When the crane 9 moved forward, the telescopic device 13 was extended along with the forward movement of the hoisting center of gravity to prevent the center of gravity from shifting and overturning when lifting the handicapped person. The maximum elongation state of the telescopic device 13 is as shown in Figure 8 . Then wrap the handicapped person with a sling and lock the corresponding position of the sling and the hanger 10, so that the handicapped person can be lifted. After lifting the handicapped person by the lift, in order to reduce the size of the bottom of the lift, the crane 9 moves backward, and the telescopic device 13 shrinks, so that the movement of the lift becomes more flexible, so that the movement can be transferred more flexibly Inconvenient. The process of putting the handicapped person from the lifting machine to the hospital bed is the reverse process of the above process. The push-pull handle 3 is used to push or pull the lifting machine as a whole.

Preferably, the width between the telescopic devices on both sides of the lift is just enough to accommodate most wheelchairs, so the docking between the lift and the wheelchair is very convenient and the structure of the lift is very compact. When it is necessary to put the handicapped person on the lift on the wheelchair, push the wheelchair directly into the gap between the telescopic devices on both sides, so that the wheelchair is placed under the handicapped person. Slowly lower the handicapped person so that the handicapped person sits on the wheelchair, and the lock of the hanger 10 and the sling is opened. The process of lifting a person with reduced mobility from a wheelchair is the reverse of the above process.

The lifting machine can also directly transfer the handicapped to the toilet for convenience. At this time, the sling with a toilet hole on the buttocks is used. Since the space below the back cushion 12 between the two uprights 2 can directly pass through the toilet, a proper movement of the lifting machine can easily move the handicapped person to the top of the toilet, and can ensure that the handicapped person is facing correctly. Afterwards, only need to control the crane 9 to lower the handicapped person to the height of the toilet, so that the handicapped person can defecate.

Preferably, as shown in Figure 5, the circumferential surface of the roller 42 and the contact surface of the bottom plate of the I-beam 7 are processed with toothed structures that mesh with each other, so as to avoid the instability caused by the sliding or slipping of the roller, and also The movement of the crane 9 is made more precise and easy to control.

In this specification, whenever an "exemplary embodiment", "preferred embodiment", "one embodiment" and the like are mentioned, it means that a specific feature, structure or characteristic described with respect to the embodiment is included in at least one embodiment of the present invention. In one embodiment. The appearances of these terms in various places in this specification are not necessarily all referring to the same embodiment. Furthermore, when a specific feature, structure or characteristic is described with respect to any one embodiment/implementation, it should be considered that one skilled in the art could implement that feature, structure or characteristic in all other described embodiments as well.

The embodiments of the present invention have been described in detail above. However, aspects of the present invention are not limited to the above-described embodiments. Various modifications and substitutions can be applied to the above-described embodiments without departing from the scope of the present invention.

Claims (9)

1. A moving machine for the handicapped, characterized in that the moving machine comprises: base; a frame connected to said base; A front swivel caster and a rear swivel caster connected to the base and the frame; a fixing piece, the fixing piece is fixedly arranged on the frame; A crane, the crane includes a reel, a cable, a first motor, a second motor and a roller, one end of the cable is connected to the reel, and the first motor drives the reel to rotate so that the The cable is extended or shortened, and the second motor drives the roller to roll on the fixing member and then drives the entire crane to move horizontally in the front-back direction; and a hanger to which the other end of the cable is attached, Wherein, the base includes two telescopic devices, and when the entire crane moves horizontally in the front-rear direction, the two telescopic devices are correspondingly extended or extended as the center of gravity of the shifter moves forward or backward. shorten. 2. The moving machine according to claim 1, wherein each telescopic device includes a fixed sleeve, a telescopic sleeve, a main shaft and a sliding sleeve, and the telescopic sleeve is sleeved on the fixed sleeve On the cylinder, the main shaft and the sliding sleeve are arranged inside the fixed sleeve and the telescopic sleeve, the diameter of the sliding sleeve changes stepwise along the axial direction and includes a thick end and a thin end, so The outer surface of the thick end of the sliding sleeve is threadedly connected with the fixed sleeve, the inner surface of the thick end of the sliding sleeve is connected to the main shaft through a spline, and the thin tail end of the sliding sleeve passes through the shaft The holes are nested and connected to the tail end of the telescopic sleeve, and the main shaft is also provided with a driven gear, and the driven gear meshes with the driving gear of the driving source. 3. The moving machine according to claim 1, wherein the fixing member is an I-shaped steel, and two ends of the I-shaped steel are connected with I-shaped steel stop plates by bolts. 4. The moving machine according to any one of claims 1 to 3, characterized in that, the hanger is provided with a first boom, a second boom and a third boom in the horizontal plane, the first boom The angle between the first boom and the second boom is 60°, and the angles between the third boom and the first boom and the second boom are both 150°. 5. The moving machine according to any one of claims 1 to 3, characterized in that, the circumference of the roller is provided with a first tooth-shaped structure, and the surface of the fixing member engaged with the roller is provided with a There is a second toothed formation meshing with the first toothed formation. 6. The moving machine according to any one of claims 1 to 3, wherein the frame includes two uprights extending upward from the two telescopic devices, and the upper ends of the two uprights A cross bar is connected between them, and the upper ends of the two upright posts are respectively connected with forearms extending forward and approaching each other, and the front ends of the two forearms are connected together by a connecting device. 7. The lifting machine according to any one of claims 1 to 3, wherein the frame comprises two uprights extending upward from the two telescopic devices, between the two uprights A back cushion is arranged, and the back cushion is arc-shaped and a safety belt is arranged on the back cushion. 8. The lifting machine according to claim 7, wherein the height of the back cushion is adjustable. 9. The moving machine according to claim 8, wherein the cushion is connected to the two uprights through ribs, vertical slides are provided on both sides of the ribs, and the vertical slides A pin is arranged in the track, the head of the pin is set in the vertical slideway, and the tail of the pin passes through the two columns and is threadedly connected with the locking handle.