CN112451269B

CN112451269B - Patient shifting machine

Info

Publication number: CN112451269B
Application number: CN202011396306.5A
Authority: CN
Inventors: 王天
Original assignee: Hangzhou Chengtian Technology Development Co Ltd
Current assignee: Hangzhou Chengtian Technology Development Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-09-17
Anticipated expiration: 2040-12-03
Also published as: CN112451269A

Abstract

The invention relates to a patient shifting machine and a supporting plate thereof, belonging to the technical field of medical instruments, and comprising a frame, a supporting frame arranged at the top of the frame, two groups of hoisting mechanisms and two groups of service robots; each group of hoisting mechanisms comprises a double-sided synchronous belt and a plurality of groups of mounting shafts, synchronous belt wheels are sleeved on the mounting shafts, and the inner surfaces of the double-sided synchronous belts are in meshing transmission with the plurality of groups of synchronous belt wheels; the bottom of the support frame is provided with a sliding seat corresponding to each service robot, the top of the support frame is provided with a sliding rail, and the top of the sliding seat is provided with a tooth socket; the middle part of support frame is equipped with the link, and the top of this link is equipped with interval adjustment mechanism. The rope wheel can be used as the driving force for the rotation of the rope wheel and the transverse movement of the sliding seat through the double-sided synchronous belts, an additional device is not needed for driving the service robot to transversely move, the distance between the two double-sided synchronous belts can be automatically adjusted through the distance adjusting assembly, and the distance between the lifting ropes can be changed to adapt to different support plate widths.

Description

Patient shifting machine

Technical Field

The invention relates to the technical field of medical instruments, in particular to a patient shifting machine.

Background

The equipping of large medical examination devices is now becoming more and more common. As the functionality of the detection devices has become more sophisticated, the patient's need for a therapeutic experience has also become higher and higher. Many patients with serious diseases need to move back and forth between beds such as a hospital bed or an examination bed when detecting their bodies. The body of a patient with serious diseases is difficult to move, the patient cannot move the bed by himself or herself, and the movement between different beds can be realized only with the help of external force. Most screening departments are equipped only with medical personnel responsible for operating the screening apparatus, and no redundant auxiliary medical personnel. If each patient needs the help of medical personnel to carry during the examination, the workload of the hospital examination department is increased, and the examination efficiency is reduced. The cost of the hospital is increased by arranging more auxiliary medical care personnel, and the waste of human resources is caused. In view of the current manpower situation of hospitals, most of the time, the patients need to be carried by the accompanying relatives.

In the prior art, a patient is generally hoisted and displaced by adopting a displacement device, but medical staff is required to additionally carry out auxiliary displacement such as carrying feet, carrying hands and the like on the patient, and although the existing robot can complete the operation, when the hoisting device is adopted, the robot cannot move above a sickbed, so that difficulty is brought to auxiliary displacement operation of the robot; and current shifter is at the in-process that removes, has the pedestrian and touches the lifting rope and make the layer board take place the hidden danger of rocking, makes the layer board drive the patient and shakes and has brought the risk for patient's health.

Disclosure of Invention

The invention aims to provide a patient shifting machine, which aims to solve the technical problems that in the prior art, a robot cannot move above a sickbed and a supporting plate is shaken by pedestrians touching a lifting rope.

The technical scheme of the invention is as follows: the device comprises a rack, a support frame arranged at the top of the rack, two groups of hoisting mechanisms respectively arranged at two sides of the support frame, and two groups of service robots arranged below the support frame;

each group of hoisting mechanisms comprises a double-sided synchronous belt and a plurality of groups of mounting shafts arranged at intervals along a linear direction, the mounting shafts are rotatably connected with the support frame, synchronous belt wheels are sleeved on the mounting shafts, and the inner surfaces of the double-sided synchronous belts are in meshing transmission with the plurality of groups of synchronous belt wheels;

the bottom of the support frame is provided with a sliding seat corresponding to each service robot, the service robot is arranged at the bottom of the sliding seat corresponding to the service robot, the top of the support frame is provided with a sliding rail in sliding fit with the sliding seat, and the top of the sliding seat is provided with a tooth groove in meshing transmission with the outer surface of the double-sided synchronous belt;

the middle part of support frame is equipped with the link, and the top of this link is equipped with the interval adjustment mechanism that is used for adjusting two-sided hold-in range relative positions.

In order to further install double-sided hold-in range, further, every double-sided hold-in range is corresponding at the frame top all is equipped with two pivots, the both ends cover of double-sided hold-in range is in two pivots, the top of frame is equipped with four bearing frames that are matrix distribution, every all be equipped with on the bearing frame rather than rotate the concertina type universal joint coupling of being connected, every concertina type universal joint coupling all corresponds a pivot, concertina type universal joint coupling and rather than the pivot that corresponds are connected, and the top left side of frame is equipped with double-shaft motor, and two output shafts of this double-shaft motor are connected with two concertina type universal joint couplings that are located left respectively.

Further, interval adjustment mechanism includes and moves the material seat and two sets of spring conflict groups that the structure is the same with link sliding fit, and every group spring conflict group all includes the telescopic link on moving the material seat lateral wall that the level set up, and the cover is equipped with expanding spring on the telescopic link, and one side that two-sided hold-in range is close to moving the material seat is equipped with the extension seat, and this expanding spring's both ends are connected respectively on moving the material seat and extending the lateral wall of seat.

In order to conveniently and rapidly adjust the relative positions of the two double-sided synchronous belts, the distance adjusting mechanism further comprises two self-locking motors which are respectively arranged inside the material moving seats, a winding wheel is arranged on a main shaft of each self-locking motor, a pull rope is wound on each winding wheel, and the end parts of the two pull ropes are respectively fixedly connected with the two extension seats.

In order to control the power output between the synchronous belt wheel and the rope wheel, furthermore, each group of mounting shafts is connected with the rope wheel through an electromagnetic clutch, a lifting rope is wound on the rope wheel, and the end part of the lifting rope is provided with a lifting hook.

In order to drive the rack to steer in all directions, the rack is of an L-shaped structure, four driving wheels which are distributed in a matrix mode are arranged at the bottom of the rack, and the driving wheels are Mecanum wheels.

In order to further control the service robot and the double-shaft motor, a control cabinet is arranged on the front side of the rack, a controller and a control button electrically connected with the controller are arranged on the control cabinet, and the service robot, the self-locking motor and the double-shaft motor are all electrically connected with the controller.

In order to adjust the position of lifting rope, it is further, still include driving motor and the axis of rotation of setting in the frame, this driving motor's main shaft and axis of rotation coaxial coupling, the cover is equipped with the transfer line in this axis of rotation, is equipped with two along the guide rail that a straight line interval set up on the lateral wall of frame, every all be equipped with on the guide rail rather than sliding fit's sliding block, the both ends of transfer line all are equipped with rather than articulated connecting rod, and two connecting rods are articulated with two sliding blocks respectively, every all be equipped with the extension strip that the level set up on the sliding block, be equipped with on this extension strip and be used for carrying out spacing collar to the lifting rope.

In order to avoid the situation that the supporting plate shakes due to collision between pedestrians and a lifting rope, each extension strip is provided with a buffer plate made of acrylic plates, the extension strips are provided with a plurality of slide rods arranged at equal intervals along the length direction of the extension strips, the extension strips are provided with slide holes in sliding fit with the slide rods, one ends of the slide rods are fixed on the side wall of the buffer plate, and the other ends of the slide rods are sleeved with limit sleeves;

all the sleeves are provided with buffer springs on each sliding rod, and the two ends of each buffer spring are respectively connected to the side walls of the buffer plate and the extension bar.

Furthermore, the lifting device also comprises a supporting plate, wherein the supporting plate comprises a plurality of lifting rings arranged in a matrix, and the supporting plate is of a multi-section plate-shaped structure.

The invention provides a patient shifter by improvement, and compared with the prior art, the patient shifter has the following improvements and advantages:

firstly, the double-shaft synchronous belt can be used as a driving force for rope pulley rotation and sliding seat transverse movement through double-face synchronous belts, an additional device is not needed for driving the service robot to transversely move, occupied area is reduced, and particularly, the double-shaft motor can drive the rotating shaft to rotate through the telescopic universal joint coupler, so that the rotating shaft drives the double-face synchronous belts to rotate;

when the inner surface of the double-sided synchronous belt is meshed with a plurality of groups of synchronous belt wheels for transmission, the double-sided synchronous belt can drive the plurality of groups of synchronous belt wheels to rotate simultaneously so as to enable the rope wheels to control the height of a lifting rope, when the outer surface of the double-sided synchronous belt is meshed with a tooth groove at the top of a sliding seat, a service robot can horizontally move above a sickbed, a telescopic universal joint coupler is the prior art and is not repeated herein, when the double-sided synchronous belt moves under the action of an interval adjusting mechanism, the telescopic universal joint coupler can be telescopic, and the double-sided synchronous belt after position adjustment can still rotate under the work of a double-shaft motor; the robot solves the technical problem that the robot cannot move above a sickbed in the prior art.

Secondly, the distance between the two double-sided synchronous belts can be automatically adjusted through the distance adjusting assembly, the stay ropes can be moved by synchronous operation of the two self-locking motors, the stay ropes drive the extension seat to move, and further the double-sided synchronous belts move to enable the outer surfaces of the double-sided synchronous belts to be meshed with tooth grooves of the sliding seat, the self-locking motors have a self-locking function to enable the distance between the two double-sided synchronous belts to be always kept at a certain size, the telescopic universal joint coupler and the telescopic rods can guide the movement of the double-sided synchronous belts, when the rope wheel is re-driven to rotate, the self-locking motors work and the double-sided synchronous belts move to the belt shaft under the self-restoring force of the telescopic springs, and the inner surfaces of the double-sided synchronous belts are meshed with the belt shaft to realize the re-driving of the rope wheel to rotate.

Thirdly, the support plates with different widths are configured according to the width of a patient bed, the distance between lifting ropes can be changed to adapt to different support plate widths, the driving motor can drive the rotating shaft to rotate when working, the rotating shaft drives the transmission rod to rotate, the transmission rod drives the two connecting rods to move respectively, the two connecting rods drive the two sliding blocks to move respectively, and then the two extending strips can approach each other to enable the limiting ring to drive the lifting ropes in the limiting ring to move, so that the distance between the lifting ropes is changed, and the support plates with different widths can be lifted conveniently.

And fourthly, when the buffer board touches the pedestrian, the buffer effect can be played to the extension strip, the extension strip is prevented from being directly contacted with the pedestrian, and then the pedestrian is prevented from touching the lifting rope to enable the supporting plate to shake, so that the technical problem that the hidden danger is shaken when the supporting plate is touched by the pedestrian in the prior art is solved.

Fifthly, the electromagnetic clutch can control power output between the synchronous belt wheel and the rope wheel.

Drawings

The invention is further explained below with reference to the figures and examples:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a partial sectional view of the patient shifter;

FIG. 5 is a partial sectional view II of the patient positioner;

FIG. 6 is a partial cross-sectional view of the present invention;

FIG. 7 is an enlarged view taken at A in FIG. 6;

fig. 8 is an enlarged view of fig. 4 at B.

Description of reference numerals:

1. a frame; 11. a support frame; 12. a rotating shaft; 13. a bearing seat; 14. a telescopic universal joint coupling; 15. a double-shaft motor; 16. a running wheel; 2. a hoisting mechanism; 21. a double-sided synchronous belt; 22. installing a shaft; 23. a synchronous pulley; 24. an electromagnetic clutch; 3. a service robot; 4. a sliding seat; 41. a tooth socket; 42. a slide rail; 5. a connecting frame; 6. a spacing adjustment mechanism; 61. a material moving seat; 62. a spring abutting group; 63. a telescopic rod; 64. a tension spring; 65. an extension base; 66. a winding wheel; 67. pulling a rope; 7. a sheave; 71. lifting a lifting rope; 72. lifting a lifting hook; 8. a control cabinet; 9. a rotating shaft; 91. a transmission rod; 92. a guide rail; 93. a slider; 94. a connecting rod; 95. an extension bar; 96. a limiting ring; 97. a buffer plate; 98. a slide bar; 99. a limiting sleeve; 991. a buffer spring; 992. a drive motor; 100. a support plate; 101. a lifting ring.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The invention provides a patient shifting machine through improvement, which comprises a rack 1, a support frame 11 arranged at the top of the rack 1, two groups of hoisting mechanisms 2 respectively arranged at two sides of the support frame 11, and two groups of service robots 3 arranged below the support frame 11, wherein the two groups of hoisting mechanisms 2 are arranged on the two sides of the support frame 11; the service robot 3 can carry out auxiliary operations such as foot moving, hand moving and the like on the patient, and the service robot 3 has a feedback function and avoids damaging the body of the patient;

each group of hoisting mechanisms 2 comprises a double-sided synchronous belt 21 and a plurality of groups of mounting shafts 22 arranged at intervals along a linear direction, the mounting shafts 22 are rotatably connected with the support frame 11, synchronous belt wheels 23 are sleeved on the mounting shafts 22, and the inner surfaces of the double-sided synchronous belts 21 are in meshing transmission with the groups of synchronous belt wheels 23; the double-sided synchronous belt 21 can drive a plurality of groups of synchronous belt pulleys 23 to rotate in the rotating process, so that the synchronous belt pulleys 23 drive the installation shaft 22 to rotate, and further the installation shaft 22 drives the rope pulley 7 to rotate through the electromagnetic clutch 24, so that the rope pulley 7 controls the height of the lifting rope 71, and the purpose of controlling the lifting ropes 71 simultaneously is achieved.

The bottom of the supporting frame 11 is provided with a sliding seat 4 corresponding to each service robot 3, the service robot 3 is arranged at the bottom of the corresponding sliding seat 4, the top of the supporting frame 11 is provided with a sliding rail 42 in sliding fit with the sliding seat 4, and the top of the sliding seat 4 is provided with a tooth groove 41 in meshing transmission with the outer surface of the double-sided synchronous belt 21; be equipped with tooth's socket 41 at the top of sliding seat 4, two-sided hold-in range 21 are close to the direction of link 5 under the effect of interval adjustment mechanism 6, the surface that makes two-sided hold-in range 21 respectively with the meshing of the top tooth's socket 41 of two sliding seats 4, can make two-sided hold-in range 21 rotate simultaneously under the effect of biax motor 15, make two-sided hold-in range 21 drive two sliding seats 4 respectively and remove along its direction of transfer, so that make service robot 3 carry out horizontal migration in the top of sick bed, so that service robot 3 assists the aversion to the patient.

The middle part of support frame 11 is equipped with link 5, and the top of this link 5 is equipped with the interval adjustment mechanism 6 that is used for adjusting two-sided hold-in range 21 relative position, and two-sided hold-in range 21 are close to the direction of link 5 under the effect of interval adjustment mechanism 6, make the surface of two-sided hold-in range 21 mesh with the top tooth's socket 41 of two sliding seat 4 respectively.

In order to further mount the double-sided synchronous belts 21, specifically, two rotating shafts 12 are arranged at the top of the rack 1 corresponding to each double-sided synchronous belt 21, two ends of each double-sided synchronous belt 21 are sleeved on the two rotating shafts 12, four bearing seats 13 distributed in a matrix manner are arranged at the top of the rack 1, each bearing seat 13 is provided with a telescopic universal joint coupler 14 rotationally connected with the bearing seat 13, each telescopic universal joint coupler 14 corresponds to one rotating shaft 12, the telescopic universal joint couplers 14 are connected with the corresponding rotating shafts 12, a double-shaft motor 15 is arranged on the left side of the top of the rack 1, and two output shafts of the double-shaft motor 15 are respectively connected with the two telescopic universal joint couplers 14 on the left side; the bearing block 13 is used for installing the telescopic universal joint coupler 14, the double-shaft motor 15 can drive the rotating shaft 12 to rotate through the telescopic universal joint coupler 14 when working, so that the rotating shaft 12 drives the double-sided synchronous belt 21 to rotate, when the inner surface of the double-sided synchronous belt 21 is engaged with the plurality of groups of synchronous belt wheels 23 for transmission, the double-sided synchronous belt 21 can drive the plurality of groups of synchronous belt wheels 23 to rotate simultaneously, so that the rope wheel 7 controls the height of the lifting rope 71, when the outer surface of the double-sided synchronous belt 21 is engaged with the top tooth groove 41 of the sliding seat 4, the service robot 3 can move horizontally above the sickbed, the telescopic universal joint coupler 14 is not described again for the prior art, when the double-sided timing belt 21 moves under the action of the spacing adjustment mechanism 6, the telescopic universal joint coupling 14 can be telescopic, so that the position-adjusted double-sided timing belt 21 can still rotate under the operation of the double-shaft motor 15.

Specifically, the spacing adjusting mechanism 6 comprises a material moving seat 61 in sliding fit with the connecting frame 5 and two groups of spring abutting groups 62 with the same structure, each group of spring abutting groups 62 comprises a telescopic rod 63 horizontally arranged on the side wall of the material moving seat 61, a telescopic spring 64 is sleeved on each telescopic rod 63, an extension seat 65 is arranged on one side, close to the material moving seat 61, of the double-sided synchronous belt 21, and two ends of each telescopic spring 64 are respectively connected to the side walls of the material moving seat 61 and the extension seat 65; under the normal condition, the expansion spring 64 is used for abutting against the double-sided synchronous belt 21 to limit the double-sided synchronous belt 21 on the plurality of groups of synchronous belt wheels 23, the expansion rod 63 has the function of guiding, so that the double-sided synchronous belt 21 can drive the material moving seat 61 to move in the moving process, the phenomenon that the expansion spring 64 is bent to influence the normal action of the double-sided synchronous belt 21 in the moving process is avoided, and when the two double-sided synchronous belts 21 are close to each other, the distance between the two double-sided synchronous belts 21 can be always kept at a certain size under the action of the self-locking motor, so that the double-sided synchronous belt 21 is prevented from being deviated under the resetting of the expansion spring 64; the sliding fit between the material moving seat 61 and the connecting frame 5 has the effect that the double-sided synchronous belt 21 is driven by the double-shaft motor 15 to rotate, so that the material moving seat 61 is driven to move in the rotating process of the double-sided synchronous belt 21, the telescopic spring 64 is driven to move, and the normal work of the double-sided synchronous belt 21 is prevented from being influenced due to the fact that the double-sided synchronous belt 21 moves and the telescopic spring 64 does not move.

As shown in fig. 3, 4 and 8, in order to conveniently and rapidly adjust the relative positions of the two double-sided synchronous belts 21, specifically, the distance adjusting mechanism 6 further includes two self-locking motors respectively disposed inside the material moving seats 61, a winding wheel 66 is disposed on a main shaft of each self-locking motor, a pulling rope 67 is wound on each winding wheel 66, and the end portions of the two pulling ropes 67 are respectively fixedly connected with the two extension seats 65; two self-locking motor synchronous operation can make stay cord 67 remove, make stay cord 67 drive extend the seat 65 and remove, and then make two-sided hold-in range 21 remove, make the surface of two-sided hold-in range 21 and the tooth's socket 41 meshing of sliding seat 4, self-locking motor has self-locking function, make the interval of two-sided hold-in range 21 keep certain size all the time, the removal of two-sided hold-in range 21 can all be led to concertina type universal joint coupling 14 and telescopic link 63.

In order to control the power output between the synchronous pulley 23 and the rope pulley 7, specifically, each group of mounting shafts 22 is connected with the rope pulley 7 through an electromagnetic clutch 24, a lifting rope 71 is wound on the rope pulley 7, and a lifting hook 72 is arranged at the end part of the lifting rope 71; the electromagnetic clutch 24 can control the power output between the synchronous belt wheel 23 and the rope wheel 7, the electromagnetic clutch 24 is an automatic execution element, the torque in mechanical transmission is transmitted or stopped by the action of electromagnetic force, the specification model of the electromagnetic clutch 24 is DLD-4-8NM, and the lifting hook 72 is matched with the lifting ring 101 of the supporting plate 100 to complete the lifting of the supporting plate 100.

In order to drive the rack 1 to steer in all directions, further, the rack 1 is of an L-shaped structure, four driving wheels 16 distributed in a matrix manner are arranged at the bottom of the rack 1, and the driving wheels 16 are mecanum wheels; the model of the Mecanum wheel is CMA-10, the Mecanum wheel is the prior art and is not described herein again, and the Mecanum wheel can drive the frame 1 to steer in all directions.

In order to further control the service robot 3 and the double-shaft motor 15, specifically, a control cabinet 8 is arranged on the front side of the rack 1, a controller and a control button electrically connected with the controller are arranged on the control cabinet 8, and the service robot 3, the self-locking motor and the double-shaft motor 15 are all electrically connected with the controller; a worker can control the rotating speed of the double-shaft motor 15 and the operation of the service robot 3 through control buttons, and the controller is a C8051F020 single-chip microcomputer.

Example two

Based on the patient shifting machine provided by the first embodiment of the application, the second embodiment of the application provides another patient shifting machine. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.

In order to adjust the position of the lifting rope, specifically, the patient shifting machine of the second embodiment further includes a driving motor 992 and a rotating shaft 9 arranged on the frame 1, a main shaft of the driving motor 992 is coaxially connected with the rotating shaft 9, a transmission rod 91 is sleeved on the rotating shaft 9, two guide rails 92 arranged along a straight line at intervals are arranged on the side wall of the frame 1, a sliding block 93 in sliding fit with each guide rail 92 is arranged on each guide rail 92, connecting rods 94 hinged with the transmission rod 91 are arranged at two ends of the transmission rod 91, the two connecting rods 94 are respectively hinged with the two sliding blocks 93, an extending strip 95 arranged horizontally is arranged on each sliding block 93, and a limiting ring 96 used for limiting the lifting rope is arranged on each extending strip 95; driving motor 992 work can drive axis of rotation 9 and rotate, make axis of rotation 9 drive transfer line 91 rotate, make transfer line 91 drive two connecting rods 94 respectively and remove, make two connecting rods 94 drive two sliding blocks 93 respectively and remove, and then make two extension strips 95 can be close to each other, make spacing ring 96 drive the lifting rope 71 that is located spacing ring 96 and remove, change the interval of lifting rope 71, so that lift by crane the operation to the layer board 100 of different width.

In order to avoid the situation that the supporting plate 100 of the invention shakes due to collision between pedestrians and a lifting rope, specifically, each extension strip 95 is provided with a buffer plate 97, the buffer plate 97 is made of acrylic plates, the extension strip 95 is provided with a plurality of sliding rods 98 arranged at equal intervals along the length direction of the extension strip, the extension strip 95 is provided with sliding holes in sliding fit with the sliding rods 98, one ends of the sliding rods 98 are all fixed on the side wall of the buffer plate 97, and the other ends of the sliding rods 98 are all sleeved with limiting sleeves 99; run into the pedestrian and can play the cushioning effect to extending strip 95 when buffer board 97, avoid extending strip 95 and pedestrian direct emergence contact, and then avoid the pedestrian to take place to touch with lifting rope 71 and make layer board 100 take place to rock, the buffer board 97 that the inferior gram force board material was made, the worker of being convenient for carries out real-time observation to the work of service robot 3.

All the cover is equipped with buffer spring 991 on every slide bar 98, and buffer spring 991's both ends are connected respectively on buffer board 97 and the lateral wall of extending strip 95.

Further comprising a pallet 100, wherein: the lifting device comprises a plurality of lifting rings 101 arranged in a matrix manner, and the supporting plate 100 is of a multi-section plate-shaped structure; a worker manually connects the hanging ring 101 with the hanging hook so that the lifting rope 71 lifts the supporting plate 100, the supporting plate 100 is of a multi-section plate-shaped structure, the supporting plate 100 does not need to be placed under a patient in advance, the supporting plate 100 can be inserted under the patient one by one, and the patient can be lifted conveniently.

The working principle of the invention is as follows: the rack 1 can be moved through the driving wheels 16, the bottom of the rack 1 is inserted below a patient bed, the supporting plates 100 with different widths are configured according to the width of the patient bed, and the supporting plates 100 are placed under a patient with the assistance of the service robot 3;

the service robot 3 can carry out auxiliary operations such as foot-carrying and spanner on a patient, the two self-locking motors work synchronously to enable the pull rope 67 to move, the pull rope 67 drives the extension seat 65 to move, the double-sided synchronous belts 21 are further enabled to move, the outer surfaces of the double-sided synchronous belts 21 are enabled to be meshed with the tooth grooves 41 of the sliding seats 4, the self-locking motors have a self-locking function, the distance between the two double-sided synchronous belts 21 is enabled to be always kept at a certain size, the two double-sided synchronous belts 21 can rotate simultaneously under the action of the double-shaft motor 15, the double-sided synchronous belts 21 are enabled to respectively drive the two sliding seats 4 to move along the conveying direction, and the service robot 3 can horizontally move above a sickbed so as to facilitate the service robot 3 to carry out auxiliary displacement on the patient;

after a patient is moved onto the supporting plate 100, the self-locking motor works and under the self-restoring force of the telescopic spring 64, the double-sided synchronous belt 21 moves onto the belt shaft, the inner surface of the double-sided synchronous belt 21 is meshed with the belt shaft, the double-shaft motor 15 works to drive the rotating shaft 12 to rotate through the telescopic universal joint coupler 14, so that the rotating shaft 12 drives the double-sided synchronous belt 21 to rotate, the inner surface of the double-sided synchronous belt 21 is meshed with a plurality of groups of synchronous belt pulleys 23 for transmission, the double-sided synchronous belt 21 can drive the plurality of groups of synchronous belt pulleys 23 to rotate simultaneously, the rope pulley 7 controls the height of the lifting rope 71, a worker manually connects the lifting ring 101 with a lifting hook, and can complete the lifting operation of the supporting plate 100 under the work of the double-shaft motor 15;

when the buffer board 97 touches the pedestrian, it will buffer the extension strip 95 to avoid the direct contact between the extension strip 95 and the pedestrian, and further avoid the pedestrian touching the lifting rope 71 to shake the support plate 100.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A patient shifter is characterized in that: comprises a frame (1), a support frame (11) arranged at the top of the frame (1), two groups of hoisting mechanisms (2) respectively arranged at two sides of the support frame (11), and two groups of service robots (3) arranged below the support frame (11);

each group of hoisting mechanisms (2) comprises double-sided synchronous belts (21) and a plurality of groups of mounting shafts (22) arranged at intervals in the linear direction, the mounting shafts (22) are rotatably connected with the support frame (11), synchronous belt wheels (23) are sleeved on the mounting shafts (22), and the inner surfaces of the double-sided synchronous belts (21) are in meshing transmission with the groups of synchronous belt wheels (23);

the bottom of the support frame (11) is provided with a sliding seat (4) corresponding to each service robot (3), the service robots (3) are arranged at the bottom of the corresponding sliding seats (4), the top of the support frame (11) is provided with a sliding rail (42) in sliding fit with the sliding seats (4), and the top of the sliding seats (4) is provided with tooth grooves (41) in meshing transmission with the outer surface of the double-sided synchronous belt (21);

a connecting frame (5) is arranged in the middle of the supporting frame (11), and a distance adjusting mechanism (6) for adjusting the relative positions of the two double-sided synchronous belts (21) is arranged at the top of the connecting frame (5);

the distance adjusting mechanism (6) comprises a material moving seat (61) in sliding fit with the connecting frame (5) and two groups of spring abutting groups (62) with the same structure, each group of spring abutting group (62) comprises a telescopic rod (63) which is horizontally arranged on the side wall of the material moving seat (61), a telescopic spring (64) is sleeved on each telescopic rod (63), one side, close to the material moving seat (61), of the double-sided synchronous belt (21) is provided with an extending seat (65), and two ends of each telescopic spring (64) are respectively connected to the side walls of the material moving seat (61) and the extending seat (65);

the distance adjusting mechanism (6) further comprises two self-locking motors which are arranged inside the material moving seat (61) respectively, each self-locking motor is provided with a winding wheel (66) on a main shaft, each winding wheel (66) is provided with a pull rope (67) in a winding mode, and the end portions of the two pull ropes (67) are fixedly connected with the two extension seats (65) respectively.

2. The patient positioner of claim 1, wherein: frame (1) top corresponds every two-sided hold-in range (21) and all is equipped with two pivot (12), the both ends cover of two-sided hold-in range (21) is on two pivot (12), the top of frame (1) is equipped with four bearing frame (13) that are matrix distribution, every all be equipped with on bearing frame (13) rather than rotating telescopic type universal joint coupling (14) of being connected, every telescopic type universal joint coupling (14) all correspond a pivot (12), and telescopic type universal joint coupling (14) are connected rather than pivot (12) that correspond, and the top left side of frame (1) is equipped with double-shaft motor (15), and two output shafts of this double-shaft motor (15) are connected with two telescopic type universal joint couplings (14) that are located left respectively.

3. The patient positioner of claim 1, wherein: each set of mounting shaft (22) is connected with a rope wheel (7) through an electromagnetic clutch (24), a lifting rope (71) is wound on the rope wheel (7), and a lifting hook (72) is arranged at the end part of the lifting rope (71).

4. The patient positioner of claim 1, wherein: the frame (1) is of an L-shaped structure, four driving wheels (16) distributed in a matrix manner are arranged at the bottom of the frame (1), and the driving wheels (16) are Mecanum wheels.

5. The patient positioner of claim 3, wherein: the front side of frame (1) is equipped with switch board (8), is equipped with the controller on this switch board (8) and with controller electric connection's control button, service robot (3), self-locking motor and biax motor (15) all with controller electric connection.

6. The patient positioner of claim 2, wherein: still include driving motor (992) and set up axis of rotation (9) in frame (1), the main shaft and axis of rotation (9) coaxial coupling of this driving motor (992), the cover is equipped with transfer line (91) on this axis of rotation (9), is equipped with two guide rail (92) that set up along a straight line interval on the lateral wall of frame (1), every all be equipped with on guide rail (92) rather than sliding fit's sliding block (93), the both ends of transfer line (91) all are equipped with rather than articulated connecting rod (94), and two connecting rod (94) are articulated with two sliding blocks (93) respectively, every all be equipped with extension strip (95) that the level set up on sliding block (93), be equipped with on this extension strip (95) and be used for carrying out spacing collar (96) to the lifting rope.

7. The patient positioner of claim 6, wherein: each extension strip (95) is provided with a buffer plate (97), the buffer plate (97) is made of acrylic plates, a plurality of slide rods (98) are arranged on each extension strip (95) at equal intervals along the length direction of the extension strip, the extension strips (95) are provided with slide holes in sliding fit with the slide rods (98), one ends of the slide rods (98) are fixed on the side wall of the buffer plate (97), and the other ends of the slide rods (98) are sleeved with limit sleeves (99);

all the cover is equipped with buffer spring (991) on every slide bar (98), and buffer spring (991)'s both ends are connected respectively on the lateral wall of buffer board (97) and extension strip (95).

8. The patient positioner of claim 1, wherein: the supporting plate is characterized by further comprising a supporting plate (100), wherein the supporting plate (100) is provided with a plurality of lifting rings (101) arranged in a matrix mode, and the supporting plate (100) is of a multi-section plate-shaped structure.