CN107456334B - Rehabilitation sickbed with automatic turning-over, back-knocking and bedsore preventing functions - Google Patents

Abstract

The invention provides a rehabilitation sickbed with automatic turning, back knocking and bedsore preventing functions, which comprises four brackets and a frame, wherein a movable shaft is arranged in the middle of the frame and is fixedly connected with a bed board; a track is fixed on the upper part of the frame, and a rack is arranged in the track; a first motor on the bed plate is meshed with the rack through a first gear; the two sides of the bed board are both provided with a winding drum, mesh cloth is arranged in the winding drum, and the two ends of the winding drum are meshed with the racks; the realization is to the upset of patient's parcel and bed board, stands up patient regularly, is equipped with automatic back of the body device of kowtowing on the frame, kowtowing back ball and rotating and reciprocating around the screw rod automatically, and synchronous tooth shape area drives the horizontal marching type removal that the slider realized the screw rod, realizes knocking to patient's back and the comprehensive automation in other pressurized positions. The invention realizes the automatic regular turning over and back knocking of the patient, lightens the labor intensity, improves the nursing working quality, reduces the bedsore, reduces the death rate caused by bedsore complications, and has better practicability and reliability.

Description

Rehabilitation sickbed with automatic turning-over, back-knocking and bedsore preventing functions

Technical Field

The invention relates to the technical field of bedsore-proof sickbeds with automatic back-knocking functions, in particular to a rehabilitation sickbed with automatic turning-over, back-knocking and bedsore-proof functions.

Background

Bedsore, also called pressure sore, is also called pressure ulcer, and is caused by tissue ulceration and necrosis due to continuous ischemia, anoxia and malnutrition caused by long-term local tissue compression. Skin pressure sores are a common problem in rehabilitation and care. According to the literature, about 6 million people die from pressure sore union symptom every year. Patients lying in bed for a long time, such as paraplegia, chronic consumptive diseases, large-area burns, deep coma and the like, are susceptible people. The incidence rate of bedsores in general hospitals is 2.5-8.8%, and is as high as 11.6%, the incidence rate of spinal cord injury patients is 25-85%, 8% of patients are related to death, and the incidence rate of elderly hospitalized patients is 10-25%.

The bedsore prevention is always the central importance in basic nursing work, is an important index for evaluating the quality of nursing work, and is also a difficult problem in nursing work. The currently accepted effective method for preventing bedsore is to turn over and tap the back manually.

The specific operation steps of back percussion are as follows: the operator generally selects the right hand (standing on the left side and using the right hand, or using the left hand, depending on the body position of the patient), the thumb is tightly attached to the first knuckle of the index finger, the four fingers are closed to form a bowl shape like an egg held in the hand, the wrist is forcefully lifted for 20 to 30 centimeters, the frequency is 60 to 80 times/minute, and the back tapping operation is not suitable for more than 30 minutes each time. The time is preferably 15 to 20 minutes. The time interval of each back knocking does not exceed two hours.

Therefore, the turnover back knocking is the work of consuming physical strength in the nursing work of long-term bedridden patients such as paraplegia, chronic consumptive diseases, large-area burns, deep coma and the like. Due to the factors of operator responsibility, whether the working attitude is correct, the physical differences of each person and the like, the working quality of turning over and back knocking is difficult to ensure. And the turnover back-knocking work of turning over every two hours is difficult to be ensured due to the amount of periodical workload.

Disclosure of Invention

Aiming at the problems that the labor intensity of manual turning and back knocking work is high, and the quality and the time interval cannot be guaranteed, the invention provides the rehabilitation sickbed with the function of automatically turning, knocking the back and preventing bedsore, which can realize the automatic turning and back knocking of a patient, reduce the labor intensity of nursing work, reduce the bedsore, reduce the mortality rate caused by bedsore complications and improve the nursing work quality.

In order to solve the technical problems, the technical scheme of the invention is as follows: a rehabilitation sickbed with automatic turning, back knocking and bedsore preventing functions comprises four brackets, wherein two brackets which are close to each other are connected through a frame, a movable shaft is arranged in the middle of the frame and is fixedly connected with a bed board; a semicircular track is fixed at the upper part of the frame, and a rack is arranged in the track; a first motor is fixed on the bed plate and meshed with the rack through a first gear; the two sides of the bed plate are provided with winding drums, mesh cloth is arranged in the winding drums, and the two ends of each winding drum are meshed with the racks; a stop block is fixed outside the movable shaft, and a limit switch I matched with the stop block is arranged on the frame; an automatic back knocking device is arranged on the frame; supporting plates are arranged below two sides of the bed plate, and two ends of each supporting plate are connected with a hydraulic driving device; reel, limit switch I, first motor, hydraulic drive device, kowtow back of the body device all are connected with the controller, and the controller is connected with timing device.

The automatic back knocking device comprises a back knocking mechanism and a moving mechanism, and the back knocking mechanism is arranged between the moving mechanisms; the back knocking device comprises a screw, a shell, a spring and back knocking balls, the shell is in threaded connection with the screw, the spring is uniformly and symmetrically fixed on the circumference of the shell, the back knocking balls are fixed at the tail end of the spring, a power device is arranged in the shell, and the power device is connected with the screw; the moving device comprises an upper sliding rail and a lower sliding rail, the upper part of the screw is connected with the upper sliding rail through an upper shaft sleeve sliding block, the lower part of the screw is connected with the lower sliding rail through a lower shaft sleeve sliding block, and a synchronous moving mechanism is arranged on the lower sliding rail; the upper sliding rail is connected with the rail through a connecting clamp, and the synchronous moving stepping mechanism is fixed on the frame.

The power device comprises a moving motor, a first main gear and a first driven gear, wherein an output shaft of the moving motor is connected with the first main gear, the first main gear is meshed with the first driven gear, and the first driven gear is sleeved on the screw and is in threaded connection with the screw; the first driven gear is fixedly connected with the shell, and the moving motor is connected with the controller.

The synchronous moving stepping mechanism comprises a synchronous toothed belt, a connecting block, a second main gear and a second driven gear, the synchronous toothed belt is arranged on two sides of the lower sliding rail, and the second main gear and the second driven gear are respectively meshed with the synchronous toothed belt; the lower shaft sleeve sliding block is fixedly connected with the synchronous toothed belt through a connecting block; the second main gear is connected with a stepping motor, the stepping motor is connected with a controller, the second driven gear is connected with a supporting shaft, and the stepping motor and the supporting shaft are fixed on the frame through a supporting plate.

The shell is a hollow cylindrical shell, a plurality of springs are arranged on the shell, each spring is fixedly provided with a back knocking ball, and the springs are uniformly and symmetrically distributed and fixed on the outer circumference of the shell; the back knocking ball is a hollow ball body made of soft elastic materials, and a bulge is arranged on the back knocking ball.

The first driven gear comprises a nut and a gear, the gear is fixed on the outer side of the nut, the nut is in threaded connection with the threaded rod, and the gear is in meshed connection with the first main gear.

The connecting block is fixed on the lower shaft sleeve sliding block, and the other end of the connecting block is fixed in the synchronous toothed belt; the connecting block is provided with a plurality of.

The winding drum comprises a drum body, a winding shaft is arranged in the drum body, the screen cloth is arranged on the winding shaft, second motors are arranged at two ends of the drum body, and the second motors are connected with second gears through rotating shafts; the barrel internal fixation has the third motor, and the third motor is connected with the spool, and second motor and third motor all are connected with the controller.

The rotating shaft is provided with a bearing, the bearing is fixed in a bearing seat, and the bearing seat is fixed at two ends of the barrel.

Two ends of the track are fixed on the bracket, and the first motors are fixed on four side corners of the bed board; a bracket is arranged on the bed plate, and a limit switch II is arranged on the bracket; a limit switch III is arranged on the support and is positioned below the bed board; and the upper parts of the two sides of the track are provided with limit switches IV, and the limit switches II, III and IV are all connected with a controller.

The screen cloth is arranged in the winding drum, and the winding drum and the two ends of the bed board are meshed with the rack of the bed head semicircular track through the gears, so that the screen cloth and the bed board rotate; the mesh cloth is driven by the winding drum to wrap the patient, and the wrapped patient is supported by the bed plate from the bottom, so that the patient can turn over; after turning over, the automatic back knocking device is arranged on the bed board and the track, and the back and other pressed parts of the patient are knocked up and down, left and right, so that the whole back and other pressed parts are knocked; the patient is recovered to the original position through the matching of the bed board and the mesh cloth after being knocked. The invention can automatically realize the turning over and back knocking of the patient at regular time, lightens the labor intensity of nursing work, improves the nursing work quality, reduces the bedsore occurrence, reduces the death rate caused by bedsore complication and has better practicability and reliability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the present invention.

Fig. 2 is a schematic structural diagram of a hospital bed according to the present invention.

Fig. 3 is a schematic structural view of the back percussion device of the present invention.

FIG. 4 is a schematic diagram of the mobile device shown in FIG. 3 according to the present invention.

FIG. 5 is an AA-oriented view of FIG. 4 in accordance with the present invention.

In the drawings, 1 is a bracket, 2 is a frame, 3 is a bed plate, 4 is a rail, 5 is a reel, 6 is a mesh, 7 is a stopper, 8 is a limit switch i, 9 is a connector, 10 is a hydraulic driving device, 11 is a housing, 12 is a moving motor, 13 is a first master gear, 14 is a first slave gear, 15 is a threaded rod, 16 is a spring, 17 is a striking ball, 18 is a carriage, 19 is a pallet, 20 is a connector block, 21 is an upper slide rail, 22 is an upper sleeve slide block, 23 is a lower slide rail, 24 is a lower sleeve slide block, 25 is a synchronous toothed belt, 26 is a stepping motor, 27 is a support shaft, 28 is a second master gear, 29 is a second slave gear, 210 is a support plate, 31 is a movable shaft, 32 is a first gear, 33 is a first motor, 34 is a rack, 35 is a limit switch ii, 36 is a limit switch iii, 37 is a limit switch iv, 51 is a second gear, 52 is a second motor, 53 is a barrel, 54 is a reel, 55 is a bearing seat, 56 is a bearing seat, 57 is a bearing, and 58 is a third motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1 and 2, a rehabilitation sickbed with automatic turning, back knocking and bedsore preventing functions comprises four brackets 1, wherein the two brackets 1 which are close to each other are connected through a frame 2, and the frame 2 is used for connecting the brackets 1 and supporting a bed board 3. The middle part of the frame 2 is provided with a movable shaft 31, the movable shaft 31 is fixedly connected with the bed plate 3, and the bed plate 3 can rotate around the movable shaft 31, so that the patient can be overturned. A semicircular track 4 is fixed on the upper part of the frame 2, and a rack 34 is arranged in the track 4. Two ends of the track 4 are fixed on the bracket 1, so that the rack 34 is conveniently connected with the gear; the first motors 33 are fixed on four side corners of the bed plate 3, so that the bed plate 3 can conveniently rotate around the movable shaft 31 along the track 4. A first motor 33 is fixed on the bed plate 3, an output shaft of the first motor 33 is connected with a first gear 32, and the first gear 32 is meshed with a rack 34. Two first motors 33 on one side of the bed plate 3 rotate simultaneously to drive the first gear 32 to rotate, so as to drive the bed plate 3 to rotate around the movable shaft 31 along the track 4, and the movable shaft 31 rotates along with the rotation of the bed plate 3. Both sides of the bed board 3 are provided with winding drums 5, the winding drums 5 are positioned on the bed board 3, mesh cloth 6 is arranged in the winding drums 5, and both ends of the winding drums 5 are meshed with the racks 34 through second gears 51. The two rolls 5 are connected by a mesh 6, and the patient lies on the upper part of the mesh 6. A stop 7 is fixed outside the movable shaft 31, the stop 7 is fixed at the lower part of the movable shaft, and the stop 7 rotates along with the rotation of the bed plate 3. And a limit switch I8 matched with the stop block 7 is arranged on the frame 2. The limit switches I8 are positioned on two sides of the movable shaft 31 and fixed on the frame 2.

The frame 2 is provided with an automatic back knocking device, so that the back of the patient after turning over and other pressed parts can be knocked, and the function of automatic back knocking is realized. Supporting plates 19 are arranged below two sides of the bed plate 3, the supporting plates 19 respectively support two sides of the bed plate 3, and the level of the bed plate 3 is ensured after turning over and when not turning over. Two ends of the supporting plate 19 are connected with the hydraulic driving device 10, the hydraulic driving device 10 controls the supporting plate 19 to move up and down, and when one side of the bed plate 3 needs to rotate downwards, the hydraulic driving device 10 drives the supporting plate 19 to move downwards for a certain distance; when the bed plate 3 returns to the horizontal position, the hydraulic driving device 10 drives the supporting plate 19 to return to the lower part of the bed plate 3, and supports the two sides of the bed plate 3. Reel 5, limit switch I7, first motor 33, hydraulic drive device 10, kowtow back of the body device all are connected with the controller, and the controller is connected with timing device. When the bed board 3 needs to rotate, the controller adjusts the hydraulic driving device 10 to retract, and the hydraulic driving device 10 drives the supporting plate 19 to move downwards. When the bed board 3 is rotated to the vertical position from the horizontal position, the stop dog 7 touches the limit switch I8, the controller controls the first motor 33 to stop rotating, and the bed board 3 stops rotating. Then, the controller controls the first motor 33 to rotate reversely, the bed plate 3 returns to the original position along the track 4, and then the controller opens the hydraulic driving device 10 to extend and retract, so as to drive the supporting plate 19 to return to the lower part of the bed plate 3, and the supporting is realized from the two sides of the bed plate. The timing device starts the first motor 33 at the side parts of the winding drum 5 and the bed plate 3 every two hours to turn over, then the automatic back knocking device is used for knocking the back, and the patient is recovered to the original position after the completion.

As shown in fig. 3-5, the automatic back-knocking device comprises a back-knocking mechanism and a moving mechanism, wherein the back-knocking mechanism is arranged between the moving mechanisms. The back knocking device can rotate and move up and down, the knocking on the back of the patient is realized by simulating hands, and the horizontal movement of the back knocking device is realized by the moving device. The back knocking device comprises a screw rod 15, a shell 11, a spring 16 and a back knocking ball 17, wherein the shell 11 is in threaded connection with the screw rod 15, the spring 16 is fixed on the shell 11, the back knocking ball 17 is fixed at the tail end of the spring 16, a power device is arranged in the shell 11, and the power device is connected with the screw rod 15. The spring 16 may be replaced by a resilient tie rod. The power device can drive the shell 11 to rotate on the screw rod 15, and simultaneously, the shell 11 moves up and down relative to the screw rod 15 under the action force of the threads, so that the back knocking ball 17 is driven to rotate and move up and down around the screw rod 15, and the back of the patient and other pressed parts are knocked up and down. The moving device comprises an upper sliding rail 21 and a lower sliding rail 23, the upper part of the screw rod 15 is connected with the upper sliding rail 21 through an upper shaft sleeve sliding block 22, the lower part of the screw rod 15 is connected with the lower sliding rail 23 through a lower sleeve sliding block 24, and a synchronous moving mechanism is arranged on the lower sliding rail 23. When the synchronous moving mechanism is used, the upper sliding rail 21 is fixedly connected with the track 4 through the connecting clamp 9, and the synchronous moving mechanism is fixed on the frame 2. The upper sleeve sliding block 22 is arranged in the upper sliding rail 21, the lower sleeve sliding block 24 is arranged in the lower sliding rail 23, and the screw 15 is driven to horizontally move by the movement of the upper sleeve sliding block 22 and the lower sleeve sliding block 24. The synchronous moving mechanism can drive the lower sleeve sliding block 24 to move gradually in the lower sliding rail 23, so as to drive the threaded rod 15 to move horizontally for a certain distance each time, realize the step-by-step horizontal movement of the back knocking device, and realize the knocking of the whole back and other pressed parts of the patient.

The power device comprises a mobile motor 12, a first master gear 13 and a first slave gear 14, wherein an output shaft of the mobile motor 12 is connected with the first master gear 13, the first master gear 13 is meshed with the first slave gear 14, and the first slave gear 14 is sleeved on a screw rod 15 and is in threaded connection with the screw rod 15. The first driven gear 14 is fixedly connected with the shell 11, the moving motor 12 is connected with the controller, and both the moving motor 12 and the controller are connected with the power supply. The controller controls the distance of the housing outside the moving motor 12 from the upper and lower slide rails so as to realize the alternate upward and downward movement of the housing 11 by a certain distance around the screw 15. The moving motor 12 is a forward and backward rotating motor, the controller adjusts the moving motor 12 to rotate forward or backward to drive the first main gear 13 and the first driven gear 14 to rotate therewith, the first driven gear 14 drives the shell 11 to move upward or downward around the screw rod 15, so that the back knocking ball 17 rotates and moves up and down at the same time, and the coordination knocking on the back and other pressed parts of the patient is realized.

Preferably, the housing 11 is a hollow cylindrical housing, the moving motor 12, the first master gear 13 and the first slave gear 14 are disposed in the housing, and the moving motor 12 is fixed in the housing 11. A plurality of springs 16 are evenly and symmetrically arranged on the circumference of the shell 11, a back knocking ball 17 is fixed on each spring 16, and the springs 16 are evenly distributed on the outer circumference of the shell 11. The back knocking balls 17 rotate simultaneously to realize the uniform knocking of the back and other pressed parts of the patient. The back knocking ball 17 is a hollow ball body made of rubber and plastic elastic soft materials, and has better comfort. The back knocking ball 17 is provided with a bulge, which can have the massage function while knocking the back.

Preferably, the first slave gear 14 includes a nut fixed on an outer side of the nut, the nut being threadedly coupled to the screw 15, and a gear engaged with the first master gear 13. Under the drive of the first main gear 13, the gear rotates, thereby driving the nut to rotate around the threaded rod 15, and realizing the rotation and up-and-down movement of the housing 11.

The synchronous moving stepping mechanism comprises a synchronous toothed belt 25, a connecting block 20, a second main gear 28 and a second driven gear 29, wherein the synchronous toothed belt 25 is arranged on two sides of the lower slide rail 23, and the lower slide rail 23 is close to one side of the synchronous toothed belt 25. The second master gear 28 and the second slave gear 29 are respectively engaged with the timing belt 25 to rotate the timing belt 25. The lower shaft sleeve sliding block 24 is fixedly connected with the synchronous cog belt 25 through the connecting block 20, the synchronous cog belt 25 drives the lower shaft sleeve sliding block 24 to move, so that the screw rod 15 is driven to horizontally move, meanwhile, the upper portion of the screw rod 15 horizontally moves in the upper sliding rail 21, and the stepping horizontal movement of the back knocking device is achieved. The second master gear 28 is connected to the stepping motor 26, the stepping motor 26 is connected to the controller, the second slave gear 29 is connected to the support shaft 27, and the stepping motor 26 and the support shaft 27 are fixed to the frame 2 through the support plate 210. The controller controls the stepping motor 26 to move a certain distance at equal intervals, and can control the stepping motor 26 to rotate reversely. The synchronous cog belt 25 moves a certain distance around the second master gear 28 and the second slave gear 29 in a stepping manner at equal intervals under the action of the stepping motor 26, and the connecting block 20 drives the lower shaft sleeve sliding block 24 to move a certain distance under the action of the synchronous cog belt, so that the screw rod 15 is driven to move a certain distance horizontally.

Preferably, the connecting block 20 is fixed on the lower shaft sleeve sliding block 24, and the other end of the connecting block 20 is fixed in the synchronous toothed belt 25; the connecting block 20 is provided with a plurality of connecting blocks. The connecting block 20 is fixedly connected with the lower shaft sleeve sliding block 24, so that the connecting stability of the lower shaft sleeve sliding block is ensured, the other end of the connecting block 20 is fixed in the sawtooth of the synchronous toothed belt 25, and the lower shaft sleeve sliding block 24 is driven to horizontally move in a stepping mode along with the movement of the synchronous toothed belt 25. The number of the connecting blocks 20 can be multiple, and after one of the connecting blocks is damaged, other connecting blocks 20 can be used for connection, so that the reliability is improved.

As shown in fig. 3, the winding drum 5 includes a drum body 53, a winding shaft 54 is arranged in the drum body 53, the mesh fabric 6 is arranged on the winding shaft 54, the second motor 52 is arranged at both ends of the drum body 53, and the second motor 52 is connected with the second gear 51 through a rotating shaft 57. The second motor 52 is fixed in the cylinder 53, so as to drive the second gear 51 to rotate, thereby moving along the rack 41, and driving the mesh cloth 6 to wrap the patient. The third motor 58 is fixed in the cylinder 53, the third motor 58 is connected with the reel 54, and the rotation of the third motor 58 can control the length of the mesh cloth 6 extending out of the cylinder 53, so that the tightness degree of wrapping a patient can be adjusted. The second motor 52 and the third motor 58 are both connected with a controller, and the controller controls the rotating speed and the rotating direction of the second motor 52 and the third motor 58 according to the shape of the track 4, and adjusts the rotation of the cylinder 53 and the reel 54, thereby adjusting the rotating direction of the cylinder 53 and the extending amount of the mesh cloth 6. The rotating shaft 57 is provided with a bearing 56, the bearing 56 is fixed in a bearing seat 55, and the bearing seats 55 are fixed at two ends of the cylinder 53. The bearing 56 supports the rotating shaft 57, and realizes stable power transmission of the rotating shaft 57 to the second gear 51.

Preferably, a bracket 18 is arranged on the bed plate 3, a limit switch II 35 is arranged on the bracket 18, and the limit switch II 35 is connected with the controller. The carriage 18 supports the reel 5, the limit switch II 35 limits the reel 5, and the controller stops the rotation of the second motor 52 when the reel is moved onto the carriage 18, thereby stopping the reel on the carriage 18. And a limit switch III 36 is arranged on the support 1, the limit switch III 36 on the support 1 is positioned below the bed plate 3, and the limit switch III 36 is connected with the controller. When the supporting plate 19 moves downwards for a certain distance and the supporting plate 19 does not influence the rotation of the bed plate 3, the supporting plate 19 touches the limit switch III 36, the controller stops the hydraulic driving device, and the supporting plate 19 stops moving downwards; when the bed plate 3 returns to the original position, the controller opens the hydraulic driving device 10 to move the supporting plate 19 below the bed plate 3, so that the bed plate 3 is supported.

And limit switches IV 37 are arranged at the upper parts of two sides of the track 4, the limit switches IV 37 are positioned above the winding drums 5, the limit switches IV 37 are connected with the controller, and when one winding drum 5 moves to the other side and touches the limit switch IV 37, the controller stops the rotation of the second motor 52, so that the winding drum 5 stays above the other winding drum.

The working process is as follows: as shown in fig. 2, a patient lies on the mesh cloth 6, the controller opens the second motor 52 and the third motor 58 of one (for example, right) winding drum 5, the mesh cloth is driven by the second gear 51 at the two ends of the winding drum 5 to move to the other side along the rack 41, when the other side (left side) is reached, the controller stops the rotation of the second motor 52 and the third motor 58, the mesh cloth 6 covers the upper part of the patient, the mesh cloth 6 wraps the patient from the top and the bottom, and the two winding drums 5 and the mesh cloth 6 form a fixing device to prevent the patient from generating horizontal displacement when the patient turns over. After the wrapping of the patient is finished, the controller starts the hydraulic driving device 10 to drive the supporting plate 19 to move downwards; the controller makes the second motor 52 of the above-mentioned reel 5 reverse, open the second motor 52 of another (left) reel 5 and the first motor 33 of the corresponding side (left) of both ends of the bed board 3 at the same time, and turn to the same as the second motor 52 of the previous reel 5, drive the first gear 32 and the second gear 51 to rotate on the rack 41, thus make the bed board 3 and two reels 5 rotate around the spindle 31 along the track 4 at the same time; when the bed board 3 rotates to the vertical position from the horizontal position, the stop 7 on the movable shaft 31 touches the limit switch I8 on one side, and the first motor 33 stops rotating. At the moment, the patient lies on the side from the horizontal position under the action of the mesh 6 and the bed plate 3, then the controller controls the first motor 33 to rotate reversely to drive the first gear 32 to return along the rack 41, the bed plate 3 is in the horizontal state, and at the moment, the controller controls the hydraulic driving device 10 to extend upwards and retract to drive the supporting plate 19 to support the two sides of the bed plate 3, so that the bed plate 3 is prevented from rotating reversely, the patient lies on the side, and the patient is turned over; at this time, the automatic back knocking device is placed on the bed plate 3, the synchronous cog belt 25 is respectively engaged with the second main gear 28 on the stepping motor 26 and the second slave gear 29 on the supporting shaft 27, the lower slide rail 23 is placed on the back side of the patient on the bed plate 3, and the upper slide rail 21 is fixed on the track 4 through the connecting card 9, as shown in fig. 1; the controller turns on the moving motor 12 to enable the back knocking ball 17 to rotate around the screw rod 15 and move up and down simultaneously, when the stepping type 17 moves to the upper part or the lower part, the controller enables the stepping motor 26 to work, and the synchronous cog belt 25 drives the screw rod 15 to move a certain distance in the horizontal direction, so that the back knocking work of a patient is realized; when the screw 15 moves from one end of the lower slide rail 23 to the other end, the controller enables the stepping motor 26 to rotate reversely, then the back is continuously knocked, and after the completion, the controller controls the stepping motor 26 and the moving motor 12 to stop rotating. The upper slide rail 21 is taken down from the rail 4, the automatic back knocking device is taken down from the bed plate 3, the controller controls the hydraulic driving device 10 to retract downwards to drive the supporting plate 19 to move downwards, the controller controls the first motor 33 (on the left side) used at the two ends of the bed plate 3 to rotate to the vertical position, the controller controls the second motors 52 of the two winding drums 5 and the first motor 33 (on the left side) to rotate simultaneously to return to the original position along the rail, the patient is converted from the lateral lying position to the lying position, the controller controls the second motor 52 of the winding drum 5 on the upper part to rotate reversely to the original position (on the right side), and the mesh cloth 6 on the upper part of the patient is restored to the original position, as shown in fig. 1. The timing module starts the device once every 2 hours, and the steps are circulated.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (6)

1. A rehabilitation sickbed with the functions of automatically turning over, knocking back and preventing bedsore comprises four brackets (1), wherein the two brackets (1) which are close to each other are connected through a frame (2), a movable shaft (31) is arranged in the middle of the frame (2), and the movable shaft (31) is fixedly connected with a bed board (3); the method is characterized in that: a semicircular track (4) is fixed at the upper part of the frame (2), and a rack (34) is arranged in the track (4); a first motor (33) is fixed on the bed plate (3), and the first motor (33) is meshed with a rack (34) through a first gear (32); both sides of the bed plate (3) are provided with winding drums (5), mesh cloth (6) is arranged in each winding drum (5), the two winding drums (5) are connected through the mesh cloth (6), and both ends of each winding drum (5) are meshed with the racks (34); a stop block (7) is fixed outside the movable shaft (31), and a limit switch I (8) matched with the stop block (7) is arranged on the frame (2); the frame (2) is provided with an automatic back knocking device; supporting plates (19) are arranged below two sides of the bed plate (3), and two ends of each supporting plate (19) are connected with the hydraulic driving device (10); the winding drum (5), the limit switch I (8), the first motor (33), the hydraulic driving device (10) and the back knocking device are all connected with a controller, and the controller is connected with a timing device;

the automatic back knocking device comprises a back knocking mechanism and a moving mechanism, and the back knocking mechanism is arranged between the moving mechanisms; the back knocking device comprises a screw rod (15), a shell (11), springs (16) and back knocking balls (17), the shell (11) is in threaded connection with the screw rod (15), the springs (16) are uniformly and symmetrically fixed on the circumference of the shell (11), the back knocking balls (17) are fixed at the tail ends of the springs (16), a power device is arranged in the shell (11), and the power device is connected with the screw rod (15); the moving mechanism comprises an upper sliding rail (21) and a lower sliding rail (23), the upper part of the screw rod (15) is connected with the upper sliding rail (21) through an upper shaft sleeve sliding block (22), the lower part of the screw rod (15) is connected with the lower sliding rail (23) through a lower shaft sleeve sliding block (24), and a synchronous moving mechanism is arranged on the lower sliding rail (23); the upper sliding rail (21) is connected with the rail (4) through a connecting clamp (9), and the synchronous moving stepping mechanism is fixed on the frame (2);

the synchronous moving stepping mechanism comprises a synchronous toothed belt (25), a connecting block (20), a second main gear (28) and a second driven gear (29), the synchronous toothed belt (25) is arranged on two sides of the lower sliding rail (23), and the second main gear (28) and the second driven gear (29) are respectively meshed with the synchronous toothed belt (25); the lower shaft sleeve sliding block (24) is fixedly connected with the synchronous toothed belt (25) through a connecting block (20); the second main gear (28) is connected with a stepping motor (26), the stepping motor (26) is connected with a controller, the second driven gear (29) is connected with a supporting shaft (27), and the stepping motor (26) and the supporting shaft (27) are fixed on the frame (2) through a supporting plate (210);

the winding drum (5) comprises a drum body, a winding shaft is arranged in the drum body, the screen cloth (6) is arranged on the winding shaft, second motors are arranged at two ends of the drum body, and the second motors are connected with second gears through rotating shafts; a third motor is fixed in the cylinder and connected with the scroll, and the second motor and the third motor are both connected with the controller;

the rotating shaft is provided with a bearing, the bearing is fixed in a bearing seat, and the bearing seat is fixed at two ends of the barrel.

2. The rehabilitation bed with the function of automatic turning over, back knocking and bedsore prevention according to claim 1, wherein the power device comprises a moving motor (12), a first main gear (13) and a first slave gear (14), the output shaft of the moving motor (12) is connected with the first main gear (13), the first main gear (13) is meshed with the first slave gear (14), and the first slave gear (14) is sleeved on the screw (15) and is in threaded connection with the screw (15); the first driven gear (14) is fixedly connected with the shell (11), and the moving motor (12) is connected with the controller.

3. The rehabilitation bed with the function of automatically turning over, knocking the back and preventing bedsores as claimed in claim 2, wherein the housing (11) is a hollow cylindrical housing, a plurality of springs (16) are arranged on the housing (11), each spring (16) is fixed with a knocking back ball (17), and the springs (16) are uniformly and symmetrically distributed and fixed on the outer circumference of the housing (11); the back knocking ball (17) is a hollow ball body made of soft elastic materials, and a bulge is arranged on the back knocking ball (17).

4. The rehabilitation bed with the function of automatically turning over, knocking back and preventing bedsore according to claim 2 or 3, characterized in that the first slave gear (14) comprises a nut and a gear, the gear is fixed on the outer side of the nut, the nut is in threaded connection with the screw rod (15), and the gear is in meshed connection with the first master gear (13).

5. The rehabilitation bed with the function of automatically turning over, knocking back and preventing bedsores according to claim 4, characterized in that the connecting block (20) is fixed on the lower shaft sleeve sliding block (24), and the other end of the connecting block (20) is fixed in the synchronous toothed belt (25); the connecting block (20) is provided with a plurality of connecting blocks.

6. The rehabilitation sickbed with the functions of automatically turning over, knocking back and preventing bedsore according to claim 1 or 5, characterized in that two ends of the rail (4) are fixed on the bracket (1), and the first motor (33) is fixed on four side corners of the bed board (3); a bracket (18) is arranged on the bed plate (3), and a limit switch II is arranged on the bracket (18); a limit switch III is arranged on the bracket (1) and is positioned below the bed plate (3); and the upper parts of the two sides of the track (4) are provided with limit switches IV, and the limit switches II, III and IV are all connected with a controller.

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