CN111991149B

CN111991149B - Patient transfer bed with booster mechanism

Info

Publication number: CN111991149B
Application number: CN202010896251.8A
Authority: CN
Inventors: 梁吉磊; 王洪波; 胡国清; 申艾欣; 王劲; 桑凌峰; 李珊; 张喆辉; 谭都; 董艳
Original assignee: Zhejiang Youxin Intelligent Medical Technology Co ltd
Current assignee: Zhejiang Youxin Intelligent Medical Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-07-12
Anticipated expiration: 2040-08-31
Also published as: CN111991149A

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a patient transferring bed with a force assisting mechanism. The method comprises the following steps: the transfer bicycle comprises a transfer bicycle frame body, an assisting electric push rod, a wedge-shaped block and an assisting wheel, wherein the wedge-shaped block is connected with the transfer bicycle frame body in a sliding manner; a power-assisted mounting plate is fixedly mounted on the transfer carriage body, a horizontal guide rail is fixed on the power-assisted mounting plate, and a horizontal sliding block which is matched and slidably connected with the horizontal guide rail is fixedly mounted on the upper right-angle side of the wedge-shaped block; the oblique guide rail consistent with the lower oblique side direction of the wedge block is fixed on the lower oblique side of the wedge block, the oblique slider is connected to the oblique guide rail in a sliding mode, the power-assisted wheel is installed on the wheel installation frame, the upper portion of the wheel installation frame is fixedly connected with the oblique slider, the vertical guide rail is fixedly installed on the side face of the wheel installation frame, the vertical slider sliding in a matched mode is arranged on the vertical guide rail, and the vertical slider is fixed on the transfer frame body. The invention realizes the automatic lifting of the power-assisted wheels by controlling the extension and retraction of the power-assisted electric push rod, and provides power for the transfer bed according to the requirement.

Description

Patient transfer bed with booster mechanism

Technical Field

The invention belongs to the technical field of medical equipment, and particularly relates to a patient transferring bed with a force assisting mechanism.

Background

The patient is transferred from an operating table to a hospital bed or from one hospital bed to another hospital bed frequently in the process of postoperative or hospitalization, and the conventional practice is that if the patient is transferred from the operating table to the hospital bed, the patient needs to be held or carried to a wheelchair or the transfer bed, great physical force is needed, and the patient is easy to tear a wound in the process of lifting and reporting, so that the patient who is just operated is injured secondarily. If the patient is transferred from one sickbed to another sickbed, the patient is generally lifted by holding, which is very laborious. On the other hand, if the patient is transported by other professional patient transfer mechanisms, the patient is often affected by the space of the ward, for example, the sickbed is close to the wall, the patient transfer mechanism can be placed on only one side surface, and the patient transfer mechanism must be continuously adjusted to adapt to the sickbed to realize the transportation.

On the other hand, the patient transfer bed only needs to be manually pushed to move in a ward in a short distance at ordinary times, but if the patient is pushed for a long time or goes up a slope, the power assisting mechanism is needed to provide auxiliary power, but the power assisting wheels need to be folded when not used, so that the power assisting and the flexibility of steering are not increased, and the patient transfer bed needs to be manually bent to fold or put down in the prior art.

Disclosure of Invention

The invention aims to overcome the defect that a power-assisted wheel is inconvenient to automatically retract in the prior art, and provides a patient transferring bed with a power-assisted mechanism, wherein the power-assisted wheel can automatically lift.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a patient transports bed with helping hand mechanism which characterized in that: the method comprises the following steps: the transfer bicycle comprises a transfer bicycle frame body, a power-assisted electric push rod arranged on the transfer bicycle frame body, a wedge block connected to the telescopic end of the power-assisted electric push rod and a power-assisted wheel with power, wherein the wedge block is connected with the transfer bicycle frame body in a sliding manner; the transfer trolley frame body is fixedly provided with a power-assisted mounting plate, a horizontal guide rail is fixed on the power-assisted mounting plate, and a horizontal sliding block which is matched and slidably connected with the horizontal guide rail is fixedly arranged on the upper right-angle side of the wedge-shaped block; the lower bevel edge of wedge be fixed with the unanimous slant guide rail of lower bevel direction of wedge, slant slider sliding connection be in on the slant guide rail, the helping hand wheel is installed on the wheel mounting bracket, the upper portion of wheel mounting bracket with slant slider fixed connection, the side fixed mounting of wheel mounting bracket has vertical guide rail, have on the vertical guide rail rather than the gliding vertical slider of cooperation, vertical slider is fixed on shifting the car frame body.

Furthermore, the transfer cart further comprises a bed frame connected to the transfer cart frame body, a panel moving left and right on the bed frame, a first motor driving the panel to move left and right, and a transmission belt covering the panel and used for transferring a human body to the panel.

Furthermore, an output shaft of the first motor is connected with a rotating shaft which drives the panel to move through a coupler, the coupler is a manual disengaging coupler, and the manual disengaging coupler comprises a first abutting block, an output mounting rod and a second abutting block, wherein the first abutting block is mounted on the rotating shaft on the output shaft side of the first motor, and the second abutting block is mounted on the output mounting rod and abutted to the first abutting block; the output mounting rod is a hollow shaft, and the manual adjusting rod penetrates through the center of the output mounting rod; one side of the first butt joint block, which faces the second butt joint block, is provided with a first butt joint tooth, the second butt joint block is provided with a second butt joint tooth which is oppositely matched with the first butt joint tooth, the center of the first butt joint tooth is provided with a disengagement adjusting groove, one end of the manual adjusting rod, which faces the first butt joint tooth, is provided with a disengagement adjusting sheet, and the disengagement adjusting sheet is correspondingly matched with the disengagement adjusting groove for use; the outer end of the manual adjusting rod penetrates out of the hollow shaft and is positioned in a reserved hole reserved on the bedstead.

Furthermore, a sliding key is fixed on the rotating shaft on the side of the first motor output shaft, and a butt joint sliding groove corresponding to the sliding key is formed in the inner wall of the first butt joint block.

Further, an operation panel is installed at the end of the tail of the bed frame, the preformed hole is located in the operation panel, and a control button of the power-assisted electric push rod is located on the operation panel.

Further, the operation panel is located at the middle position of the bedstead tail part.

Furthermore, the power-assisted wheel is arranged on the plug shaft, the lower part of the wheel mounting frame is provided with an upper sleeve convex shaft, and two ends of a rotating shaft of the power-assisted wheel are square shafts; the upper end of the inserting shaft is provided with a lower sleeving convex shaft corresponding to the sleeving convex shaft, and the lower end of the inserting shaft is provided with an inserting groove inserted on the square shaft; and two ends of a damping spring are respectively sleeved on the upper sleeved convex shaft and the lower sleeved convex shaft.

Further, still include panel moving mechanism, panel moving mechanism includes: install the first motor on the bedstead, with the first drive sprocket of the output shaft coaxial arrangement of first motor, set up two auxiliary sprocket that are used for the tensioning chain in the first drive sprocket left and right sides, the symmetry sets up the first driven sprocket in first drive sprocket both sides, auxiliary sprocket is located first drive sprocket's oblique top, the chain is in proper order around first driven sprocket, is walked around from the auxiliary sprocket top, then winds to the top from first driven sprocket's below again. The auxiliary chain wheel is installed on the auxiliary frame, the auxiliary frame is fixedly installed on the bed frame, the two first driven chain wheels are fixedly installed on the chain wheel transmission rod, the first panel driving chain wheel is installed on the chain wheel transmission rod in parallel with the first driven chain wheels, the second panel driving chain wheel is fixedly installed at the other end of the chain wheel transmission rod, the lower surface of the panel is fixedly provided with the two transmission chains, and the two transmission chains are respectively in meshing transmission with the first panel driving chain wheel and the second panel driving chain wheel.

Furthermore, four wheels are installed at four corners below the transfer frame body.

Further, the power-assisted mounting plate is mounted at the center of the transfer carriage body.

The patient transferring bed with the force assisting mechanism has the beneficial effects that:

1. promote the wedge motion through helping hand electric putter, lead to the wedge and the contact surface of wheel mounting bracket lower and lower to promote wheel mounting bracket downstream, make the helping hand wheel land, realize the automatic rising of helping hand wheel, only need control operation panel or remote controller or open the switch of helping hand wheel and can open the helping hand wheel automatically and provide the helping hand.

2. The first motor can be manually braked in time when the first motor cannot be stopped in time by manually disengaging the coupler, so that the absolute safety of a patient in an emergency situation in the process of transferring the patient is ensured.

3. Through sprocket and drive chain meshing transmission to guide the motion of messenger's panel motion more steady through the panel guide rail, the phenomenon of skidding can not appear.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

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

FIG. 2 is a perspective view of the lower view of the embodiment of the present invention;

FIG. 3 is a perspective view of a portion of the structure of an embodiment of the present invention;

FIG. 4 is a view showing a structure of a transmission mechanism of a panel moving mechanism according to an embodiment of the present invention;

FIG. 5 is a drive configuration diagram of a belt drive mechanism according to an embodiment of the present invention;

FIG. 6 is a perspective view of a belt drive mechanism according to an embodiment of the present invention;

FIG. 7 is a perspective view of an armrest in accordance with an embodiment of the present invention;

FIG. 8 is a block diagram of an embodiment of the present invention with the armrests positioned below the upper plate of the bed frame;

FIG. 9 is a block diagram of a deadlock assembly in accordance with an embodiment of the invention;

fig. 10 is a view showing the configuration of the armrest of the present invention positioned above the upper plate of the frame;

FIG. 11 is a schematic view of a guide roller quick release assembly according to an embodiment of the present invention;

FIG. 12 is a view showing one end connection of the second guide roll according to the embodiment of the present invention;

FIG. 13 is a partial block diagram of a guide roller quick release assembly according to an embodiment of the present invention;

FIG. 14 is a block diagram of a routine switch installation embodying the invention;

FIG. 15 is a structural view of a power assist mechanism in the embodiment of the present invention;

FIG. 16 is a block diagram of a manually disengaged coupling of an embodiment of the present invention;

FIG. 17 is a block diagram of a closed state of a manual disconnect coupling in accordance with an embodiment of the present invention;

FIG. 18 is a partial cross-sectional view of a manual disengagement coupling of an embodiment of the present invention;

FIG. 19 is a view showing the construction of a first docking block according to the embodiment of the present invention;

FIG. 20 is a view showing the construction of an operation panel according to the embodiment of the present invention;

FIG. 21 is a view of the junction of the lower body frame and the upper body frame of the present invention;

FIG. 22 is a structural view of a tongue guide in accordance with an embodiment of the present invention;

fig. 23 is a structural view of a lock frame according to an embodiment of the present invention.

In the figure, 1, a first motor, 2, a first electric push rod, 3, a sprocket transmission rod, 4, a first driving sprocket, 5, an auxiliary sprocket, 6, a first driven sprocket, 7, an auxiliary frame, 8, a frame, 81, a lower frame, 82, an upper frame, 83, an upper frame plate, 831, a lap joint, 84, a frame side plate, 841, a limit guide groove, 9, a first panel driving sprocket, 11, a transmission chain, 12, a panel guide rail, 13, a guide groove, 14, a panel, 143, a center plate, 1431, a bolt installation groove, 144, a movable plate, 16, a link shaft, 17, a link plate, 18, a third motor, 19, a second driving sprocket, 20, a first belt driving sprocket, 21, a first reel, 22, a second belt driving sprocket, 23, a second reel, 24, a third belt driving sprocket, 25, a first guide roller, 26, a side roller, 27, a second guide roller, 28, a butt bolt, 291. a first supporting plate 292, a quick-release mounting plate 293, a pin shaft 294, a pressing block 295, a snap spring 296, a second supporting plate 30, a handrail 301, a handrail body 302, a long connecting plate 3021, an upper limiting groove 3022, a lower limiting groove 303, a handrail rotating shaft 31, a locking component 311, a locking frame 3111, a connecting rod 3112, a pull rod 312, an upper locking block 313, a lower locking block 315, a positioning groove 316, a locking frame mounting plate 32, a travel switch 321, a limiting rod 33, a lifting device 34, a first butt joint block 341, a first butt joint tooth 342, a disengagement adjusting groove 35, a second butt joint block, a second butt joint tooth 36, an output mounting rod 37, a manual adjusting rod 38, a sliding key 39, a butt joint sliding groove 40, a disengagement adjusting piece 411, an electric boosting push rod 412, a wedge block 413, a square wheel 4131, a boosting shaft 414 and a boosting

mounting plate

351, 415. horizontal guide rail 416, horizontal sliding block 417, oblique guide rail 418, oblique sliding block 419, wheel mounting rack 4191, upper sleeve convex shaft 420, vertical guide rail 421, vertical sliding block. 43. The automatic bottle conveying device comprises an operation panel, 44, a preformed hole, 45, a bottle rack, 46, a transmission belt, 47, a transfer frame body, 48, a plug shaft, 481, a lower socket convex shaft, 482, a plug groove, 49, a damping spring, 50, a tongue-shaped guide plate, 501, a bedstead rotating shaft, 51, a panel hinge block, 52, a guide roller connecting block, 53 and a return spring.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1 to 23, the patient transfer cart according to the embodiment of the present invention includes: a bedstead 8, a patient transfer panel mounted on the bedstead 8 for transferring a patient, a reversible armrest 30 provided on both sides of the bedstead 8, and a walking mechanism for driving the transfer cart to move.

Referring to fig. 1-6, the patient transfer panel includes a panel moving mechanism and a belt drive mechanism, wherein the panel moving mechanism includes: install first motor 1 on bedstead 8, first drive sprocket 4 with the output shaft coaxial arrangement of first motor 1, two auxiliary sprocket 5 that are used for the tensioning chain of setting in the 4 left and right sides of first drive sprocket, the symmetry sets up the first driven sprocket 6 in first drive sprocket 4 both sides, auxiliary sprocket 5 is located the oblique top of first drive sprocket 4, the chain is walked around first drive sprocket 4 in proper order, walk around from auxiliary sprocket 5 top, then walk around to the top from the below of first driven sprocket 6 again. Auxiliary sprocket 5 installs on auxiliary frame 7, and auxiliary frame 7 fixed mounting is on bedstead 8, the equal fixed mounting of two first driven sprocket 6 is on sprocket drive pole 3, sprocket drive pole 3 is gone up and is installed first panel drive sprocket 9 with first driven sprocket 6 side by side, the other end fixed mounting of sprocket drive pole 3 has second panel drive sprocket, the lower fixed surface of panel 14 installs drive chain 11, drive chain 11 is two in this embodiment, respectively with first panel drive sprocket 9 and the meshing transmission of second panel drive sprocket.

In order to guide the panel 14, the frame 8 has a panel guide rail 12 provided in parallel with the drive chain 11, and the lower surface of the panel 14 has a guide groove 13 engaged with the panel guide rail 12.

In this embodiment, the bed frame 8 is divided into two parts, including a lower body bed frame 81 and an upper body bed frame 82, the panel 14 is also divided into two parts, including an upper body panel and a lower body panel, the lower body bed frame 81 is provided with the first electric push rod 2, the output shaft of the first electric push rod 2 is connected with the connecting rod shaft 16, two ends of the connecting rod shaft 16 are both fixedly provided with the connecting frame plates 17, the connecting frame plates 17 are fixedly connected with the upper body bed frame 82, and the lower body bed frame 81 and the upper body bed frame 82 are rotatably connected. Referring to fig. 21 and 22, the tongue guide 50 is fixedly connected to the lower frame 81, the end of the tongue guide 50 is fixedly connected to the lower frame 81, the upper frame 82 is rotatably connected to the tongue guide 50 by a frame rotating shaft 501, and the upper frame 82 has a guide hole through which the tongue guide 50 is inserted.

The upper body panel and the lower body panel are rotatably connected by a panel hinge block 51. The upper body panel can move together with the lower body panel. In this embodiment, the panel moving mechanism is driven by the lower body frame 81, and the panel guide rails 12 are provided at both ends and the center of the frame 8, so that the upper body panel and the lower body panel can move synchronously and smoothly.

Belt transmission mechanisms are provided on both the lower body frame 81 and the upper body frame 82, so that the lower body and the upper body of the patient can be moved respectively, thereby adjusting the angle at which the patient lies. Here, a belt driving mechanism for moving the lower body will be described.

Referring to fig. 2, 5 and 6, the belt driving mechanism includes a third motor 18 mounted on the frame 8 through a bracket, a second driving sprocket 19 coaxially mounted with an output shaft of the third motor 18, a first belt driving sprocket 20 connected with the second driving sprocket 19 through a chain transmission, a second belt driving sprocket 22 mounted on a first winding drum 21 in parallel with the first belt driving sprocket 20, a second winding drum 23 arranged in parallel with the first winding drum 21, a third belt driving sprocket 24 mounted on the second winding drum 23, the second belt driving sprocket 22 connected with the third belt driving sprocket 24 through a chain, the first winding drum 21 and the second winding drum 23 are both rotatably connected to the frame 8, first guide rollers 25 are also correspondingly disposed above the first winding drum 21 and the second winding drum 23, and both ends of the first guide rollers 25 are mounted on the frame 8 through bearings. Side rollers 26 are installed at the left and right sides of the panel 14, and second guide rollers 27 are installed at the inner sides of the side rollers 26; the belt 46 is wound around the first reel 21 and the second reel 23 at both ends thereof, and the belt 46 is wound around the first guide roller 25, the second guide roller 27, and the side roller 26 from the lower surface thereof to the upper side of the panel 14 after being wound around the first reel 21 and the second reel 23. The belt 46 is in contact with the patient's body and transports the person onto the panel 14.

In a preferred embodiment, two first guide rollers 25 are disposed above the first winding drum 21 and the second winding drum 23, respectively, and although the panel 14 moves left and right, the total length of the belt 46 wound from the first winding drum 21 and the second winding drum 23 is constant, and the belt 46 adaptively contacts one of the two first guide rollers 25 disposed in parallel as the panel 14 moves left and right.

In the process of carrying the patient, especially the patient who has just performed an operation, the transmission belt 46 is easy to be stained with dirt such as bloodstain, and the transmission belt 46 is in contact with the second guide roll 27 to pollute the second guide roll 27, so the second guide roll 27 can be quickly detached and replaced.

The panel 14 is used for carrying a patient by moving left and right, referring to fig. 5, the panel 14 includes a central plate 143 and a movable plate 144, a plurality of bolt mounting grooves 1431 are formed near left and right edges of the central plate 143, a docking bolt 28 is inserted into the central plate 143 from the bolt docking mounting grooves, and a screw of the docking bolt 28 protrudes from left and right sides of the central plate 143, a docking hole corresponding to a screw of the docking bolt 28 is formed at a side of the movable plate 144, and the movable plate 144 is docked with the central plate 143 by inserting the screw of the docking bolt 28 into the docking hole of the movable plate 144. Referring to fig. 11-13, taking a panel transfer mechanism and a belt transmission mechanism of a lower body as an example, a guide roller quick-release assembly is mounted on the lower surface of the movable plate 144, the guide roller quick-release assembly includes a quick-release mounting plate 292 fixedly mounted with one end of the movable plate 144, a pin shaft 293 is pinned on the quick-release mounting plate 292, a press block 294 is fixedly mounted on the pin shaft 293, a snap spring 295 for returning the pin shaft 293 is further mounted on the pin shaft 293, and the press block 294 is integrally connected with the first supporting plate 291; the other end of the movable plate 144 is fixedly installed with a second supporting plate 296 corresponding to the first supporting plate 291, one end of the second guiding roller 27 is overlapped on the second supporting plate 296, the other end is overlapped on the first supporting plate 291 and is pressed and fixed by the pressing block 294, the pressing block 294 is driven to move by pressing down the first supporting plate, and the second guiding roller 27 is taken out. One end of the second guide roller 27 is fixed by the guide roller quick release assembly, and the other end is directly overlapped on the second supporting plate 296 which is fixed at the other end of the panel 14 and corresponds to the first supporting plate 291. In fact, to realize the quick release of the second guide roller 27, one end of the second guide roller 27 is naturally overlapped on the supporting plate, and the other end is pressed by the pressing block 294, when the second guide roller 27 needs to be detached, the first supporting plate 291 is pressed down to enable the pressing block to loosen the second guide roller 27, the second guide roller 27 is pushed to the other end, and the second guide roller 27 is taken out. Due to the elastic force of the clamp spring 295, the pressing block 294 can be always pressed by the second guide roller 27 without being affected by external force. The second guide roller 27 is two round rollers arranged in parallel, the end parts of the two round rollers are fixed on the guide roller connecting block 52, and the guide roller connecting block 52 is lapped on the first supporting plate 291 and the second supporting plate 296. The movable plate 144 can be pulled outwards to be separated from the central plate 143, and the movable plate 144 is turned over to expose the second guide roller 27 upwards, so that the operation, the disassembly and the replacement are more convenient.

During the transfer of the patient, the transfer panel 14 is raised and lowered to approximate the height of the bed in order to achieve a perfect overlap with the bed.

When a patient lies on the transfer cart at ordinary times, in order to prevent the patient from falling off the bed, the handrails 30 need to be arranged on the two sides of the transfer panel 14 of the transfer cart, but when the patient is transferred, the handrails 30 need to be turned downwards as the transfer panel 14 needs to move left and right. In order to prevent the moving panel 14 from being abutted with the bed after the armrest 30 is folded downwards, the folding mechanism of the armrest 30 is also designed to be particularly large in the present embodiment.

Referring to fig. 7 to 10, the handrail 30 includes a handrail body 301 and at least one elongated connecting plate 302 connected to an end of the handrail body 301 and disposed perpendicular to the handrail body 301; the elongated connecting plates 302 are pivotally connected to the lower side of the upper frame plate 83 by the handle pivot shaft 303, and at least one of the elongated connecting plates 302 positions the handle 30 above or below the upper frame plate 83 by the handle locking assembly 31.

The dead-lock assembly 31 includes a lock frame 311 slidably connected to the lower surface of the upper frame plate 83, and two upper lock blocks 312 and two lower lock blocks 313 fixed to the ends of the lock frame 311, the dead-lock assembly 31 further includes a lock frame mounting plate 316 fixed to the lower surface of the upper frame plate 83, referring to fig. 23, the lock frame 311 includes a connecting rod 3111 passing through the lock frame mounting plate 316 and a pull rod 3112 fixedly mounted to the ends of the connecting rod 311, and one end of the lock frame mounting plate 316 opposite to the armrest rotating shaft 303 has a positioning groove 315 for mounting the armrest rotating shaft 303. One end of the armrest rotating shaft 303 is rotatably connected to the lower surface of the upper plate 83 of the bed frame, the other end of the armrest rotating shaft has a square positioning block extending outward, and the positioning groove 315 is also square and used for positioning and installing the square positioning block. The two sides of the long connecting plate 302 are respectively provided with an upper limiting groove 3021 and a lower limiting groove 3022, when the armrest 30 is positioned above the upper plate 83 of the bed frame, the long connecting plate 302 extends towards the outer edge of the bed, the armrest 30 faces upwards, the upper locking block 312 abuts against the upper limiting groove 3021, and the square positioning block is positioned in the positioning groove 315; when the handrail 30 needs to be turned over downwards, the lock frame 311 is pulled to separate the upper lock block 312 from the upper limit groove 3021, the handrail 30 is turned downwards, the long connecting plate 302 is turned over 180 degrees, at this time, the handrail 30 is tightly attached to the bed frame 8, a space is left below the upper plate 83 of the bed frame, and after the handrail 30 is turned over downwards to a proper position, the lock frame 311 is pulled to enable the lower lock block 313 to abut against the lower limit groove 3022. The positioning block and the positioning groove may also have other shapes to prevent the armrest rotating shaft 303 from rotating.

Referring to fig. 2 and 14, the side plate 84 of the bed frame is provided with the travel switch 32, the side plate 84 of the bed frame is provided with a limit guide groove 841, the limit rod 321 of the travel switch 32 extends out of the limit guide groove 841, the bed frame 8 is installed on the lifting device 33, when the bed frame 8 is in butt joint with a sickbed, the edge of the upper plate 83 of the bed frame is positioned on the sickbed, the lifting device 33 drives the bed frame 8 to lift, when the limit rod 321 touches the sickbed, the lifting device 33 drives the bed frame 8 to continue to descend, and the distance of the upper plate 83 of the bed frame can be calculated and judged according to the upward movement distance of the limit rod 321. The driving mechanism of the travel switch 32 and the lifting device 33 is comprehensively controlled to realize the perfect seamless joint of the sickbed and the panel 14 of the transfer trolley.

The docking method of the patient transfer cart and the sickbed in the embodiment of the invention comprises the following steps:

step 1: the handrail 30 at the side where the patient transfer cart is butted with the sickbed is turned downwards to be below the upper plate 83 of the bed frame and is tightly attached to the side plate 84 of the bed frame;

step 2, moving the patient transfer cart to the left side or the right side of the sickbed, enabling the patient transfer cart to be arranged in parallel with the sickbed, enabling a panel 14 of the transfer cart to just correspond to the body of a patient on the sickbed, and overlapping a lap-joint part 831 of an upper plate 83 of the bedstead with the edge part of the sickbed; when the patient is in a sitting or lying posture, the first electric push rod 2 is driven to stretch and retract, so that the upward overturning angle of the upper body bedstead 82 is the same as the upward overturning angle of the head part of the sickbed.

Step 3, controlling the lifting device 33 to drive the bed frame 8 to descend, wherein the sickbed contacts the limit rod 321 of the travel switch 32 in the descending process, and the travel switch 32 feeds back the calculated distance from the sickbed to the upper plate 83 of the bed frame to the control system in real time along with the ascending of the limit rod 321, and displays the distance on the operation panel 43;

and 4, when the travel switch detects that the sickbed is contacted with the bed frame upper plate 83, the control system sends a command to disconnect the driving of the lifting device 33, and the bed frame 8 stops moving to finish the butt joint.

The output shaft of the first motor 1 is connected with the first driving sprocket 4 through a coupling, in order to ensure the absolute safety of the patient and prevent the panel 14 from being forced to move during the left and right movement to damage the patient, the coupling used herein is designed as a manually detachable coupling, and referring to fig. 16-20, the manually detachable coupling includes a first butt block 34 mounted on the rotating shaft on the output shaft side of the first motor 1 through splines, an output mounting rod 36 for mounting the output mechanism (the first driving sprocket 4 in this embodiment) and a second butt block 35 mounted on the output mounting rod 36 and butted with the first butt block 34; the output mounting rod 36 is a hollow shaft, and the manual adjustment rod 37 passes through the center of the output mounting rod 36. A sliding key 38 is fixed on the rotating shaft at the output shaft side of the first motor 1, a butt-joint sliding groove 39 corresponding to the sliding key 38 is arranged on the inner wall of the first butt-joint block 34, a first butt-joint tooth 341 is arranged on one side of the first butt-joint block 34 facing the second butt-joint block 35, a second butt-joint tooth 351 opposite to and matched with the first butt-joint tooth 341 is arranged on the second butt-joint block 35, a disengagement adjusting groove 342 is arranged at the central position of the first butt-joint tooth 341, a disengagement adjusting sheet 40 is arranged at one end of the manual adjusting rod 37 facing the first butt-joint tooth 341, and the disengagement adjusting sheet 40 is correspondingly matched with the disengagement adjusting groove 342 for use. A reset seat is arranged between the first butt joint block 34 and the first motor 1, a reset spring 53 is arranged between the reset seat and the first butt joint block 34, the outer end of the manual adjusting rod 37 penetrates out of the hollow shaft of the output mounting rod 36 and is positioned in a reserved hole 44 reserved on the bedstead 8, a hand extends into the reserved hole 44 to push the manual adjusting rod 37 inwards, the first butt joint block 34 is pushed by the disengagement adjusting sheet 40 to be away from the second butt joint block 35, the output mounting rod 36 is rotated after the butt joint teeth of the two butt joint blocks are disengaged from each other, the tooth shapes of the first butt joint tooth 341 and the tooth shape of the second butt joint tooth 351 are abutted, and the coupler is disengaged. When the coupler needs to be reconnected, the output mounting rod only needs to be slightly rotated, and the first butt-joint teeth 341 and the second butt-joint teeth 351 can be meshed together under the action of the return spring 53. The coupler is separated manually, so that the safety of a patient in an emergency is guaranteed.

An operation panel 43 is mounted on the end of the bed frame 8 near the feet or the head of the person, a prepared hole is located near the operation panel 43, the prepared hole is located below the operation panel 43 in the present embodiment, and the control button of the assist electric push rod 411 is located on the operation panel 43. The operation panel 43 is located at the middle of the head or the tail of the frame.

Referring to fig. 1 to 3, the frame body 8 is mounted on a transfer cart frame body 47, the height of the frame body 8 is adjusted by the lifting device 33 on the transfer cart, four corners of the transfer cart have four wheels, but sometimes a power assisting mechanism is needed to provide auxiliary power for pushing patients for a long time or going up a slope.

Referring to fig. 15, assist drive device includes through the support mounting assist electric putter 411 on transferring frame body 47, connect wedge 412 and the helping hand wheel 413 of taking power certainly at the flexible end of assist electric putter 411, wedge 412 with transfer frame body 47 sliding connection, specifically be: a power-assisted mounting plate 414 is fixedly mounted on the transfer carriage body 47, a horizontal guide rail 415 is fixed on the power-assisted mounting plate 414, and a horizontal sliding block 416 which is matched and slidably connected with the horizontal guide rail 415 is fixedly mounted on the upper right-angle side of the wedge block 412; an oblique guide rail 417 which is consistent with the direction of the lower oblique edge of the wedge block 412 is fixed on the lower oblique edge of the wedge block 412, an oblique sliding block 418 is connected to the oblique guide rail 417 in a sliding mode, a boosting wheel 413 is installed on a wheel installation frame 419, the upper portion of the wheel installation frame 419 is fixedly connected with the oblique sliding block 418, a vertical guide rail 420 is fixedly installed on the side face of the wheel installation frame 419, a vertical sliding block 421 which is matched with the vertical guide rail in a sliding mode is arranged on the vertical guide rail, and the vertical sliding block 421 is fixed on the transfer frame body 47. The assisting wheel is arranged on the plug-in shaft 48, the lower part of the wheel mounting rack is provided with an upper sleeve convex shaft 4191, and two ends of a rotating shaft of the assisting wheel are provided with square shafts 4131; the upper end of the inserting shaft 48 is provided with a lower sleeving convex shaft 481 corresponding to the sleeving convex shaft, and the lower end is provided with an inserting groove 482 inserted on the square shaft 4131; two ends of a damping spring 49 are respectively sleeved on the upper sleeved convex shaft 4191 and the lower sleeved convex shaft 481.

The working process of the power assisting mechanism is as follows:

helping hand wheel 413 is higher than other four wheels of transfer car at ordinary times, do not participate in work, when needing helping hand wheel 413 work, helping hand electric putter 411 outwards promotes wedge 412, because the lower surface of wedge 412 is the inclined plane, and the front and back position of wheel mounting bracket 419 does not change, lead to wedge 412 and wheel mounting bracket 419's contact surface to lower and lower, thereby promote wheel mounting bracket 419 downstream, make helping hand wheel 413 land, because helping hand wheel 413 is the wheel of self-power, only need control operation panel 43 or remote controller or open helping hand wheel 413's switch can open helping hand wheel 413 and provide the helping hand.

The lifting device 33 is an electric push rod in this embodiment.

In this embodiment, an operation panel 43 is further disposed at the end of the bed for controlling the operation of controlling the first motor 1 to drive the panel 14 to move left and right, controlling the first electric push rod 2 and the third motor 18 to rotate and further drive the transmission belt 46 to rotate, controlling the lifting of the bed frame 8, the lifting of the assisting wheel 413, and the working state of the assisting wheel 413.

In this embodiment, the prepared hole 44 for extending the manual adjusting rod 37 is located below the operation panel 43, and is covered by the operation panel 43 above, on one hand, without affecting the overall appearance, and on the other hand, is located near the operation panel 43 and in the middle of the bed frame 8, so as to facilitate the operation of the operator nearby.

In this embodiment, the travel switches 32 are provided on both side surfaces of the lower body frame 81 and the upper body frame 82, and four travel switches 32 are provided in total.

The driving belt 46 in this embodiment can adopt the purpose-built sheet that easily unpicks and washes, and in order to dismantle the convenience, the side roller 26 falls into the multistage, and a driving belt 46 is connected to every section of side roller 26 to every driving belt 46 can also adopt the multistage to pass through the magic and paste the mode that sticks together, and what section of driving belt 46 is polluted the back, only need directly to tear off and change clean one section driving belt 46.

In this embodiment, a bottle holder 45 for holding an oxygen bottle is further fixedly mounted below the bed frame 8.

The specific working process of the embodiment of the invention is as follows:

because the left and right handrails 30 can be turned over, the panel 14 can realize the movement of the left and right sides, so that the patient can be transferred no matter the sickbed is on the left side or the right side of the transfer cart, specifically, the transfer cart is pushed to the vicinity of the sickbed and is parallel to the sickbed, the edge of the bedstead 8 can slightly overlap with the sickbed, then the lifting device 33 is controlled to slowly descend the bedstead 8, when the limiting rod 321 of the travel switch 32 touches the sickbed, the travel switch 32 can judge the distance between the lower surface of the bedstead 8 and the sickbed by moving the limiting rod 321 upwards, and when the lower surface of the bedstead 8 contacts with the sickbed, the travel switch 32 immediately disconnects the switch of the lifting device 33, and the bedstead 8 stops the lifting movement; taking the sickbed on the left side of the transfer vehicle as an example, the first motor 1 rotates to drive the upper body panel and the lower body panel to synchronously move leftwards, meanwhile, the transmission belt 46 rotates clockwise, when the panel 14 moves to the lower part of the body of a patient, the panel 14 continuously moves downwards towards the body of the patient, and the transmission belt 46 transfers the patient to the panel 14 by utilizing friction force through clockwise rotation; if the patient is lying in a tilted position on the panel 14, the third motor 18 with a transmission for moving the upper and lower body can be turned on, respectively, or the speeds of the two motors can be made different to adjust the posture of the patient. After the patient has been completely transferred to the panel 14, the transfer cart may be pushed to transfer the patient.

If the patient just has operated, inconvenient mode through embracing and lifting shifts the sick bed, shift the car through this and can be steady shift patient, can change drive belt 46 by stage as required after drive belt 46 is contaminated, and if second guide roll 27 is contaminated, only need outwards stimulate fly leaf 144, make fly leaf 144 break away from with docking bolt 28, this has just exposed second guide roll 27, pull first layer board 291 and can take off second guide roll 27 to the other end promotion with second guide roll 27 and change, can quick replacement guide roll, and saved the time of wasing second guide roll 27 on shifting the car.

The patient transfer cart of the present invention is not limited by the room space, and can easily carry a patient to the panel 14 regardless of whether a patient bed is on the left side or the right side of the transfer cart.

The transfer vehicle can also provide active power according to the requirement, and is convenient and labor-saving.

The coupler can be manually adjusted to be disconnected, so that the absolute safety of a patient is guaranteed.

In this embodiment, the panel 14 is in an arch shape, the bolt mounting groove 1431 is opened downward, the central plate 143 is a plane, and the outer edge of the movable plate 144 is inclined downward. The panel 14 is higher in the middle and lower and thinner at the left and right edges, so that the panel 14 can be easily shoveled under the human body.

It should be understood that the specific embodiments described above are only for illustrating the present invention and are not to be construed as limiting the present invention. Obvious variations or modifications which are within the spirit of the invention are possible within the scope of the invention.

Claims

1. The utility model provides a patient transports bed with helping hand mechanism which characterized in that: the method comprises the following steps: the transfer trolley comprises a transfer trolley frame body (47), a power-assisted electric push rod (411) arranged on the transfer trolley frame body (47), a wedge block (412) connected to the telescopic end of the power-assisted electric push rod (411) and a power-assisted wheel (413) with power, wherein the wedge block (412) is connected with the transfer trolley frame body (47) in a sliding mode; a power-assisted mounting plate (414) is fixedly mounted on the transfer trolley frame body (47), a horizontal guide rail (415) is fixed on the power-assisted mounting plate (414), and a horizontal sliding block (416) which is matched and slidably connected with the horizontal guide rail (415) is fixedly mounted on the upper right-angle side of the wedge block (412); the lower bevel edge of wedge (412) be fixed with the unanimous slant guide rail (417) of lower bevel edge direction of wedge (412), slant slider (418) sliding connection be in on slant guide rail (417), helping hand wheel (413) are installed on wheel mounting bracket (419), the upper portion of wheel mounting bracket (419) with slant slider (418) fixed connection, the side fixed mounting of wheel mounting bracket (419) has vertical guide rail (420), have on vertical guide rail (420) rather than the gliding vertical slider (421) of cooperation, vertical slider (421) are fixed on transferring car frame body (47).

2. The patient transfer bed with the force assisting mechanism according to claim 1, characterized in that: the human body transfer trolley further comprises a bedstead (8) connected to the transfer trolley frame body (47), a panel (14) moving left and right on the bedstead (8), a first motor (1) driving the panel (14) to move left and right, and a transmission belt (46) covering the panel (14) and used for transferring a human body to the panel.

3. The patient transfer bed with the force assisting mechanism according to claim 2, wherein: the output shaft of the first motor (1) is connected with a rotating shaft which drives the panel (14) to move through a coupler, the coupler is a manual disengaging coupler, and the manual disengaging coupler comprises a first butt joint block (34) arranged on the rotating shaft at the output shaft side of the first motor (1), an output mounting rod (36) and a second butt joint block (35) which is arranged on the output mounting rod (36) and is in butt joint with the first butt joint block (34); the output mounting rod (36) is a hollow shaft, and the manual adjusting rod (37) penetrates through the center of the output mounting rod (36); one side of the first butt joint block (34) facing the second butt joint block (35) is provided with a first butt joint tooth (341), the second butt joint block (35) is provided with a second butt joint tooth (351) oppositely matched with the first butt joint tooth (341), the center position of the first butt joint tooth (341) is provided with a disengagement adjusting groove (342), one end of the manual adjusting rod (37) facing the first butt joint tooth (341) is provided with a disengagement adjusting sheet (40), and the disengagement adjusting sheet (40) is correspondingly matched with the disengagement adjusting groove (342) for use; the outer end of the manual adjusting rod (37) penetrates out of the hollow shaft of the output mounting rod and is positioned in a preformed hole (44) reserved on the bedstead (8).

4. The patient transfer bed with the force assisting mechanism according to claim 3, wherein: a sliding key (38) is fixed on a rotating shaft at the output shaft side of the first motor (1), and a butt joint sliding groove (39) corresponding to the sliding key (38) is formed in the inner wall of the first butt joint block (34).

5. The patient transfer bed with the force assisting mechanism according to claim 3, wherein: an operation panel (43) is installed at the end part of the tail part of the bed frame (8), the preformed hole (44) is positioned below the operation panel (43), and a control button of the power-assisted electric push rod (411) is positioned on the operation panel (43).

6. The patient transfer bed with the force assisting mechanism according to claim 5, wherein: the operation panel is positioned in the middle of the tail part of the bed frame.

7. A patient transport bed with a force aid according to any one of claims 1-6, wherein: the boosting wheel is arranged on the plug-in shaft (48), the lower part of the wheel mounting rack is provided with an upper sleeve convex shaft (4191), and two ends of a rotating shaft of the boosting wheel are square shafts (4131); the upper end of the inserting shaft (48) is provided with a lower sleeving convex shaft (481) corresponding to the sleeving convex shaft, and the lower end of the inserting shaft is provided with an inserting groove (482) inserted on the square shaft (4131); two ends of a damping spring (49) are respectively sleeved on the upper sleeved convex shaft (4191) and the lower sleeved convex shaft (481).

8. The patient transfer bed with the force assisting mechanism according to claim 7, wherein: still include panel moving mechanism, panel moving mechanism includes: the chain tensioning device comprises a first motor (1) arranged on a bedstead (8), a first driving chain wheel (4) coaxially arranged with an output shaft of the first motor (1), two auxiliary chain wheels (5) which are arranged on the left side and the right side of the first driving chain wheel (4) and used for tensioning a chain, and first driven chain wheels (6) symmetrically arranged on two sides of the first driving chain wheel (4), wherein the auxiliary chain wheels (5) are positioned obliquely above the first driving chain wheel (4), and the chain sequentially bypasses the first driving chain wheel (4), bypasses the auxiliary chain wheels (5) from the upper side and then bypasses the first driven chain wheels (6) from the lower side to the upper side; the auxiliary chain wheel (5) is installed on an auxiliary frame (7), the auxiliary frame (7) is fixedly installed on the bed frame (8), the two first driven chain wheels (6) are fixedly installed on the chain wheel transmission rod (3), the chain wheel transmission rod (3) and the first driven chain wheels (6) are installed in parallel to form a first panel driving chain wheel (9), the other end of the chain wheel transmission rod (3) is fixedly installed with a second panel driving chain wheel, the lower surface of the panel (14) is fixedly installed with a transmission chain (11), and the two transmission chains (11) are respectively in meshing transmission with the first panel driving chain wheel (9) and the second panel driving chain wheel.

9. The patient transfer bed with the booster mechanism of claim 8, wherein: four wheels are arranged at four corners below the transfer frame body (47).

10. The patient transfer bed with the force assisting mechanism according to claim 1, characterized in that: the power-assisted mounting plate (414) is mounted at the center of the transfer carriage frame body (47).