CN112006852A - Transfer vehicle capable of bidirectionally transferring patients - Google Patents

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a patient transfer cart capable of moving in two directions, which comprises: the handrail comprises a handrail body and at least one long connecting plate which is connected with the end part of the handrail body and is vertically arranged with the handrail body; the long connecting plates are rotatably connected below the upper plate of the bedstead through the handrail rotating shafts, and at least one long connecting plate is used for positioning the handrail above or below the upper plate of the bedstead through the handrail locking component; the dead lock assembly comprises a lock frame which is connected to the lower surface of the upper plate of the bed frame in a sliding mode, and an upper lock block and a lower lock block which are fixed to the end portion of the lock frame and are arranged in parallel. The handrail is arranged on the upper plate of the bed frame through a long connecting plate vertical to the handrail, and the handrail is positioned above and below the bed frame through the locking frame, when the handrail is positioned below the bed frame, the handrail can be tightly attached to the side plates of the bed frame, and a certain space is reserved below the upper plate of the bed frame so as to facilitate the seamless butt joint of the bed frame and a sickbed.

Description

A transfer vehicle that can transfer patients in both directions

technical field

The invention belongs to the technical field of medical equipment, and in particular relates to a transfer vehicle that can transfer patients in both directions.

Background technique

Patients often need to be transferred from the operating table to the hospital bed, or from one hospital bed to another after surgery or during the hospitalization. It takes a lot of physical strength to get a patient to a wheelchair or a transfer bed, and it is easy to tear the wound during the lifting process, causing secondary injury to the patient who has just undergone surgery. If the patient is transferred from one hospital bed to another, it is usually carried out by holding and lifting, which is very laborious. On the other hand, if the patient is transported through other professional patient transfer institutions, it is often affected by the space of the ward. For example, the hospital bed is next to the wall, and only one side of the patient transfer mechanism can be placed. The patient transfer mechanism must be constantly adjusted to adapt to the hospital bed. Realize the move.

The patient usually lies on the transfer mechanism, especially when the transfer is on the way, in order to prevent the patient from falling off the bed, the transfer mechanism or the transfer vehicle needs to be equipped with handrails on both sides of the panel. To hinder the movement of the panel, the armrest must be removed or folded down. If you want to fold it down, the armrest will be on the side of the bed frame, which will affect the seamless connection between the transfer cart and the hospital bed.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the defect in the prior art that the handrail affects the seamless connection between the transfer car and the hospital bed, and to provide a transfer car that can transfer patients in both directions with handrails that can be turned over without affecting the connection between the transfer car and the hospital bed.

The technical scheme adopted by the present invention to solve its technical problems is:

A transfer vehicle that can transfer patients in both directions, which is characterized by comprising: a bed frame and handrails rotatably installed on the left and right sides of the bed frame, the handrails comprising a handrail body and a handrail body connected to the end of the handrail body and connected to the handrail. At least one long connecting plate is vertically arranged on the body; the long connecting plate is rotated and connected under the upper plate of the bed frame through the rotation axis of the armrest, and at least one long connecting plate is positioned by the armrest locking assembly to position the armrest on the upper plate of the bed frame. Above or below; the locking assembly includes a lock frame slidably connected to the lower surface of the upper plate of the bed frame, and two side-by-side upper lock blocks and lower lock blocks fixed on the ends of the lock frame.

Further, the locking assembly further includes a lock frame mounting plate fixed on the lower surface of the upper plate of the bed frame, the lock frame includes a connecting rod passing through the locking frame mounting plate and a tie rod fixedly installed on the end of the connecting rod and the opposite end of the lock frame mounting plate and the armrest rotating shaft is provided with a positioning groove for installing the armrest rotating shaft.

Further, one end of the armrest rotating shaft is rotatably connected to the lower surface of the upper plate of the bed frame, and the other end has a square positioning block protruding outward, and the positioning groove is also square, used for positioning and installing the square positioning block.

Further, the two sides of the long connecting plate are respectively provided with an upper limit slot and a lower limit slot. When the armrest is located above the upper plate of the bed frame, the elongated connecting plate protrudes to the outer edge of the bed, the armrest is upward, and the upper position locks. When the armrest is located under the upper plate of the bed frame, the armrest is downward, and the lower locking block is in the lower limit slot.

Further, it also includes a panel that can move left and right for scooping up and carrying patients, the panel includes a center panel and a movable panel, a plurality of bolt mounting grooves are provided near the edge of the center panel, and the butt bolts are installed from the mounting grooves. into the center plate, and the screws of the butt bolts protrude from the left and right sides of the center plate, and the side of the movable plate is provided with abutting holes corresponding to the screws of the butt bolts. Board docking.

Further, the surface of the panel also has a transmission belt for driving the patient to ascend to the panel, and a second guide roller for guiding the transmission belt is installed under the movable plate.

Further, a guide roller quick-release assembly is installed on the lower surface of the movable plate, the guide roller quick-release assembly includes a quick-release installation plate fixedly installed with one end of the movable plate, and a pin shaft is pinned on the quick-release installation plate, A pressure block is fixedly installed on the pin shaft, a retaining spring for returning the pin shaft is also installed on the pin shaft, and the pressure block is integrally connected with the first support plate; the other end of the movable plate is fixedly installed with The second support plate corresponding to the first support plate, one end of the second guide roller is overlapped on the second support plate, and the other end is overlapped on the first support plate and is pressed and fixed by the pressing block , the second guide roller is taken out by pulling up the first supporting plate to drive the pressing block to move.

Further, the second guide rollers are two round rollers arranged in parallel, and the ends of the two round rollers are fixed on the guide roller connecting block, and the guide roller connecting block overlaps the first support plate and the second guide roller. on the pallet.

The beneficial effects of the bidirectionally movable patient transfer vehicle of the present invention are:

1. The armrest is installed on the upper board of the bed frame through a long connecting plate perpendicular to it, and the armrest is positioned above and below the bed frame through the lock frame. When the armrest is located above the bed frame, it is located on the left and right sides of the edge of the bed frame , When the armrest is located under the bed frame, it can be close to the side plate of the bed frame, leaving a certain space below the upper plate of the bed frame so that the bed frame can be seamlessly connected to the hospital bed.

2. The panel is set as the center plate and the movable plate, which can quickly remove the movable plate and clean the second guide roller of the movable plate, and because the movable plate can be reversed, it is easier to quickly disassemble the second guide roller. When taking the movable board, fold the armrest down to the bottom of the upper board of the bed frame.

Description of drawings

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

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

FIG. 2 is a perspective view of a three-dimensional structure diagram under an embodiment of the present invention;

3 is a perspective view of a part of the structure of the embodiment of the present invention;

Fig. 4 is the transmission structure diagram of the panel moving mechanism according to the embodiment of the present invention;

Fig. 5 is the transmission structure diagram of the belt transmission mechanism according to the embodiment of the present invention;

FIG. 6 is a three-dimensional structural view of a belt transmission mechanism according to an embodiment of the present invention;

Fig. 7 is the perspective view of the handrail of the embodiment of the present invention;

FIG. 8 is a structural diagram when the armrest is located under the upper plate of the bed frame according to the embodiment of the present invention;

9 is a structural diagram of a locking assembly according to an embodiment of the present invention;

10 is a structural diagram when the armrest is located above the upper plate of the bed frame according to the embodiment of the present invention;

11 is a structural diagram of a guide roller quick-release assembly according to an embodiment of the present invention;

Figure 12 is a connection diagram of one end of the second guide roller according to the embodiment of the present invention;

Figure 13 is a partial structural diagram of the guide roller quick-release assembly according to the embodiment of the present invention;

Fig. 14 is the installation structure diagram of the travel switch according to the embodiment of the present invention;

15 is a structural diagram of a power assist mechanism according to an embodiment of the present invention;

16 is a structural diagram of the disengagement state of the manual disengagement coupling according to the embodiment of the present invention;

17 is a structural diagram of the closed state of the manual disengagement coupling according to the embodiment of the present invention;

18 is a partial cross-sectional view of the manual disengagement coupling according to the embodiment of the present invention;

19 is a structural diagram of a first docking block according to an embodiment of the present invention;

20 is a structural diagram of an operation panel according to an embodiment of the present invention;

21 is a structural diagram of the connection between the lower body bed frame and the upper body bed frame according to the embodiment of the present invention;

22 is a structural diagram of a tongue-shaped guide plate according to an embodiment of the present invention;

FIG. 23 is a structural diagram of a lock frame according to an embodiment of the present invention.

In the figure: 1, the first motor, 2, the first electric push rod, 3, the sprocket transmission rod, 4, the first driving sprocket, 5, the auxiliary sprocket, 6, the first driven sprocket, 7, the auxiliary Frame, 8, bed frame, 81, lower body bed frame, 82, upper body bed frame, 83, upper bed frame, 831, lap joint, 84, bed frame side panel, 841, limit guide groove, 9, first Panel drive sprocket, 11, Transmission chain, 12, Panel rail, 13, Guide groove, 14, Panel, 143, Center plate, 1431, Bolt mounting groove, 144, Active plate, 16, Link shaft, 17, Connecting frame plate, 18, third motor, 19, second drive sprocket, 20, first belt drive sprocket, 21, first reel, 22, second belt drive sprocket, 23, second reel, 24, The third belt drive sprocket, 25, the first guide roller, 26, the side roller, 27, the second guide roller, 28, the butt bolt, 291, the first support plate, 292, the quick release mounting plate, 293, the pin , 294, pressure block, 295, circlip, 296, second pallet, 30, armrest, 301, armrest body, 302, long connecting plate, 3021, upper limit slot, 3022, lower limit slot, 303, Armrest rotating shaft, 31, Locking assembly, 311, Lock frame, 3111, Connecting rod, 3112, Pull rod, 312, Upper lock block, 313, Lower lock block, 315, Positioning slot, 316, Lock frame mounting plate, 32, Limit switch, 321, Limit rod, 33, Lifting device, 34, First docking block, 341, First docking tooth, 342, Disengagement adjustment slot, 35, Second docking block, 351, Second docking tooth, 36 , Output installation rod, 37, Manual adjustment rod, 38, Feather key, 39, Butt chute, 40, Disengage adjustment piece, 411, Power-assisted electric push rod, 412, Wedge block, 413, Power-assist wheel, 4131, Square shaft , 414, power-assisted mounting plate, 415, horizontal guide rail, 416, horizontal slider, 417, inclined guide rail, 418, inclined slider, 419, wheel mounting bracket, 4191, upper socket convex shaft, 420, vertical guide rail , 421, vertical slider. 43, operation panel, 44, reserved hole, 45, bottle holder, 46, transmission belt, 47, transfer frame body, 48, plug shaft, 481, lower socket convex shaft, 482, plug groove, 49, minus Shock spring, 50, tongue-shaped guide plate, 501, bed frame rotating shaft, 51, panel hinge block, 52, guide roller connecting block, 53, return spring.

Detailed ways

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, so they only show the structures related to the present invention.

As shown in FIGS. 1-23 , a specific embodiment of a transfer cart that can transfer patients in two directions according to the present invention, the patient transfer cart includes: a bed frame 8 , and a patient transfer panel mounted on the bed frame 8 for transferring patients. , The handrails 30 that can be turned over are arranged on both sides of the bed frame 8 and the walking mechanism used to drive the movement of the transfer cart.

1-6, the patient transfer panel includes a panel moving mechanism and a belt transmission mechanism, wherein the panel moving mechanism includes: a first motor 1 installed on the bed frame 8, and a first motor 1 installed coaxially with the output shaft of the first motor 1 The first driving sprocket 4 , two auxiliary sprockets 5 arranged on the left and right sides of the first driving sprocket 4 for tensioning the chain, and a first driven sprocket symmetrically arranged on both sides of the first driving sprocket 4 6. The auxiliary sprocket 5 is located obliquely above the first driving sprocket 4. The chain goes around the first driving sprocket 4, from above the auxiliary sprocket 5, and then from the bottom of the first driven sprocket 6. to the top. The auxiliary sprocket 5 is installed on the auxiliary frame 7, and the auxiliary frame 7 is fixedly installed on the bed frame 8, and the two first driven sprockets 6 are fixedly installed on the sprocket transmission rod 3. A driven sprocket 6 is installed in parallel with a first panel drive sprocket 9, the other end of the sprocket transmission rod 3 is fixedly installed with a second panel drive sprocket, and the lower surface of the panel 14 is fixedly installed with a transmission chain 11. This embodiment There are two middle transmission chains 11, which are respectively engaged with the first panel drive sprocket 9 and the second panel drive sprocket for transmission.

In order to guide the panel 14 , the bed frame 8 has a panel guide rail 12 arranged in parallel with the transmission chain 11 , and the lower surface of the panel 14 has a guide groove 13 matched 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, and the panel 14 is also divided into two parts, including an upper body panel and a lower body panel, and a first electric push rod is installed on the lower body bed frame 81 2. The output shaft of the first electric push rod 2 is connected with a connecting rod shaft 16, and both ends of the connecting rod shaft 16 are fixedly installed with a connecting frame plate 17, and the connecting frame plate 17 is fixedly connected with the upper body bed frame 82, and the lower body bed frame 81 It is rotatably connected with the upper body bed frame 82 . 21 and 22, the lower body bed frame 81 is fixedly connected with the tongue-shaped guide plate 50, the end of the tongue-shaped guide plate 50 is fixedly connected to the lower body bed frame 81, and the upper body bed frame 82 and the tongue-shaped guide plate 50 pass through the bed frame rotation axis 501 is rotatably connected, and the upper body bed frame 82 has a guide hole through which the tongue-shaped guide plate 50 is passed.

The upper body panel and the lower body panel are rotatably connected through the panel hinge block 51 . So the upper body panel can move with the lower body panel. In this embodiment, the drive of the panel moving mechanism is arranged on the lower body bed frame 81 , and the two ends and the middle of the bed frame 8 are provided with panel guide rails 12 , so that the upper body panel and the lower body panel can move synchronously and smoothly.

The lower body bed frame 81 and the upper body bed frame 82 are both provided with belt transmission mechanisms, which can realize the movement of the lower body and the upper body of the patient respectively, so as to adjust the lying angle of the patient. Here, the belt drive mechanism for moving the lower body will be described.

2 , 5 and 6 , the belt transmission mechanism includes a third motor 18 mounted on the bed frame 8 through a bracket, a second driving sprocket 19 mounted coaxially with the output shaft of the third motor 18 , and a second driving sprocket 19 . The first belt drive sprocket 20 connected by the driving sprocket 19 through the chain drive, and the second belt drive sprocket 22 installed on the first reel 21 in parallel with the first belt drive sprocket 20, parallel to the first reel 21 The second reel 23 is provided, the third belt drive sprocket 24 is installed on the second reel 23, the second belt drive sprocket 22 and the third belt drive sprocket 24 are connected by a chain, and the first reel 21 and the third belt drive sprocket 24 are connected. The two reels 23 are both rotatably connected to the bed frame 8, and first guide rollers 25 are correspondingly arranged above the first reel 21 and the second reel 23, and both ends of the first guide roller 25 are erected and installed by bearings on the bed frame 8. Side rollers 26 are installed on the left and right sides of the panel 14, and a second guide roller 27 is installed inside the side rollers 26; the two ends of the transmission belt 46 are wound on the first reel 21 and the second reel 23 respectively, The transmission belt 46 is wound up from the first reel 21 and the second reel 23 and then goes up and around the first guide roller 25 in turn, then goes around the upper surface of the second guide roller 27 , and then goes up from the lower surface of the side roller 26 . Wrap around to the top of panel 14 . The belt 46 is in contact with the patient's body to transport the person onto the panel 14 .

As a preferred embodiment, above the first reel 21 and the second reel 23 are respectively provided two first guide rollers 25 arranged in parallel. Although the panel 14 moves left and right, the The total length of the transmission belt 46 unrolled on the two reels 23 is constant, and as the panel 14 moves left and right, the transmission belt 46 adaptively contacts one of the two first guide rollers 25 arranged side by side.

In the process of transporting a patient, especially a patient who has just undergone surgery, the transmission belt 46 is easily stained with blood stains and other contaminants. After the transmission belt 46 contacts the second guide roller 27, the second guide roller 27 will be contaminated. Therefore, the design of this embodiment is designed The second guide roller 27 can be quickly disassembled and replaced.

The panel 14 is used to scoop up and carry the patient by moving left and right. Referring to FIG. 5 , the panel 14 includes a center plate 143 and a movable plate 144. The center plate 143 is provided with a plurality of bolt installation grooves 1431 near the left and right edges, and the docking bolts 28 The center plate 143 is inserted into the bolt butt installation groove, and the screws of the butt bolts 28 protrude from the left and right sides of the center plate 143 . The screw is inserted into the docking hole of the movable plate 144 so that the movable plate 144 is butted with the center plate 143 . 11-13, take the panel transfer mechanism and belt transmission mechanism of the lower body as an example, the lower surface of the movable plate 144 is equipped with a guide roller quick release assembly, and the guide roller quick release assembly The mounting plate 292 is disassembled, a pin shaft 293 is pinned on the quick-release mounting plate 292, a pressing block 294 is fixedly installed on the pin shaft 293, and a retaining spring 295 for returning the pin shaft 293 is also installed on the pin shaft 293, and the pressing block 294 It is integrally connected with the first supporting plate 291; the other end of the movable plate 144 is fixedly mounted with a second supporting plate 296 corresponding to the first supporting plate 291, one end of the second guide roller 27 is overlapped on the second supporting plate 296, and the other One end overlaps the first support plate 291 and is pressed and fixed by the pressing block 294, and the second guide roller 27 is taken out by pressing the first supporting plate to drive the pressing block 294 to move. 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 support plate 296 fixed on the other end of the panel 14 and corresponding to the first support plate 291 . In fact, to realize the quick release of the second guide roller 27, only one end of the second guide roller 27 needs to be naturally overlapped on the pallet, and the other end is pressed by the pressing block 294. When the second guide roller 27 needs to be disassembled When guiding the roller 27, press down the first support plate 291 to release the pressing block from the second guiding roller 27, push the second guiding roller 27 to the other end, and take out the second guiding roller 27. Due to the elastic force of the retaining spring 295, it can be ensured that the pressing block 294 is always pressed by the second guide roller 27 under the action of no external force. The second guide rollers 27 are two round rollers arranged side by side, the ends of the two round rollers are fixed on the guide roller connecting block 52 , and the guide roller connecting block 52 is overlapped on the first supporting plate 291 and the second supporting plate 296 . The movable plate 144 can also be pulled outward to disengage it from the center plate 143, and the second guide roller 27 can be exposed upwards by flipping the movable plate 144, which is more convenient for operation, disassembly and replacement.

In the process of transferring a patient, in order to achieve perfect overlap with the hospital bed, the transfer panel 14 should be raised and lowered to approach the height of the bed surface.

When the patient is lying on the transfer car, in order to prevent the patient from falling off the bed, handrails 30 need to be provided on both sides of the transfer panel 14 of the transfer car. However, when transferring the patient, since the transfer panel 14 needs to move left and right, the handrails 30 need to be turned down. fold. After the handrail 30 is folded downwards, in order not to affect the docking of the mobile panel 14 with the hospital bed, the folding mechanism of the handrail 30 is also specially designed in this embodiment.

7-10, the armrest 30 includes an armrest body 301 and at least one elongated connecting plate 302 connected to the end of the armrest body 301 and perpendicular to the armrest body 301; Below the upper board 83 of the bed frame, at least one long connecting plate 302 is positioned above or below the upper board 83 of the bed frame by the armrest locking assembly 31 .

The locking assembly 31 includes a locking frame 311 slidably connected to the lower surface of the upper board 83 of the bed frame, and two parallel upper locking blocks 312 and lower locking blocks 313 fixed on the end of the locking frame 311 . The locking assembly 31 further includes The lock frame mounting plate 316 fixed on the lower surface of the upper plate 83 of the bed frame, see FIG. 23 , the lock frame 311 includes a connecting rod 3111 passing through the locking frame mounting plate 316 and a pull rod 3112 fixedly installed at the end of the connecting rod 311, The end of the lock frame mounting plate 316 opposite to the armrest rotating shaft 303 has a positioning groove 315 for installing 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, and the other end has a square positioning block protruding outward. Both sides of the long connecting plate 302 are respectively provided with an upper limit slot 3021 and a lower limit slot 3022. When the armrest 30 is located above the upper plate 83 of the bed frame, the elongated connecting plate 302 extends to the outer edge of the bed, and the armrest 30 is upward. The upper lock block 312 abuts in the upper limit slot 3021, and the square positioning block is located in the positioning slot 315; when the armrest 30 needs to be folded down, pull the lock frame 311 to disengage the upper lock block 312 from the upper limit slot 3021, Rotate the armrest 30 downward, the long connecting plate 302 is folded 180°, at this time the armrest 30 is close to the bed frame 8, leaving a space below the upper plate 83 of the bed frame, after the armrest 30 is folded down in place, pull the lock frame 311 makes the lower locking block 313 abut in the lower limiting groove 3022 . The positioning block and the positioning groove can also adopt other shapes to ensure that the armrest rotating shaft 303 does not rotate.

2 and 14 , the travel switch 32 is installed on the side plate 84 of the bed frame, the side plate 84 of the bed frame has a limit guide groove 841, the limit rod 321 of the travel switch 32 protrudes from the limit guide groove 841, and the bed The frame 8 is installed on the lifting device 33. When the bed frame 8 is docked with the hospital bed, the edge of the upper plate 83 of the bed frame is placed on the hospital bed, and the lifting device 33 drives the bed frame 8 to lift. The 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 determined according to the upward movement distance of the limit rod 321 . The comprehensive control of the travel switch 32 and the driving mechanism of the lifting device 33 realizes the perfect and seamless connection between the hospital bed and the panel 14 of the transfer vehicle.

The docking method of the patient transfer vehicle and the hospital bed according to the embodiment of the present invention is as follows:

Step 1: Flip down the handrail 30 on the docking side of the patient transfer vehicle and the hospital bed to the bottom of the upper plate 83 of the bed frame, and close to the side plate 84 of the bed frame;

Step 2. Move the patient transfer car to the left or right side of the hospital bed, so that the patient transfer car and the hospital bed are arranged side by side, and the panel 14 of the transfer car just corresponds to the body of the patient on the hospital bed, and the upper plate 83 of the bed frame is placed. The connecting portion 831 overlaps with the edge of the hospital bed; when the patient is in a sitting position, the first electric push rod 2 is driven to extend and retract, so that the upper body bed frame 82 is turned upward at the same angle as the head of the hospital bed.

Step 3. Control the lifting device 33 to drive the bed frame 8 to descend. During the descending process, the hospital bed contacts the limit rod 321 of the travel switch 32. As the limit rod 321 rises, the travel switch 32 sends the calculated bed frame to the upper board of the bed frame. The distance of 83 is fed back to the control system in real time and displayed on the operation panel 43;

Step 4. When the travel switch detects that the hospital bed is in contact with the upper plate 83 of the bed frame, the control system sends a command to disconnect the driving of the lifting device 33, the movement of the bed frame 8 is stopped, and the docking is completed.

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, which may damage the patient, the coupling used here is designed as 16-20, the manual detachable coupling includes a first abutment block 34 mounted on the rotating shaft on the output shaft side of the first motor 1 through splines, used to install the output mechanism ( In this embodiment, it is the output mounting rod 36 of the first driving sprocket 4) and the second abutting block 35 mounted on the output mounting rod 36 and connected to the first abutting block 34; the output mounting rod 36 is a hollow shaft, which is manually The adjustment rod 37 passes through the center of the output mounting rod 36 . A sliding key 38 is fixed on the rotating shaft on the output shaft side of the first motor 1 , the inner wall of the first docking block 34 has a docking chute 39 corresponding to the sliding key 38 , and the first docking block 34 faces the side of the second docking block 35 There is a first abutting tooth 341, the second abutting block 35 has a second abutting tooth 351 which is matched with the first abutting tooth 341, and a disengagement adjusting slot 342 is formed in the center of the first abutting tooth 341, and the manual adjusting rod 37 faces One end of the first abutting tooth 341 has a disengagement adjustment piece 40 , and the disengagement adjustment piece 40 is used in correspondence with the disengagement adjustment groove 342 . A reset seat is installed between the first docking block 34 and the first motor 1 , a reset spring 53 is installed between the reset seat and the first docking block 34 , and the outer end of the manual adjustment rod 37 passes through the hollow shaft of the output installation rod 36 . It is located in the reserved hole 44 reserved on the bed frame 8, and the human hand reaches into the reserved hole 44 to push the manual adjustment rod 37, and the adjustment sheet 40 is disengaged to push the first docking block 34 to keep it away from the second docking Block 35, when the abutting teeth of the two abutting blocks are disengaged from each other, the output mounting rod 36 is rotated, so that the tooth shapes of the first abutting tooth 341 and the second abutting tooth 351 abut against each other, and the coupling is disengaged. When the coupling needs to be reconnected, it is only necessary to rotate the output installation rod slightly, and under the action of the return spring 53, the first butt teeth 341 and the second butt teeth 351 can be engaged with each other. The coupling is disengaged manually to ensure the safety of the patient in emergency situations.

An operation panel 43 is installed at the end of the bed frame 8 close to the foot or the head of the person, and the reserved hole is located near the operation panel 43. on the operation panel 43 . The operation panel 43 is located in the middle of the head or tail of the bed frame.

1-3, the bed frame 8 is installed on the transfer car frame body 47, and the height of the bed frame 8 is adjusted by the lifting device 33 on the transfer car. The four corners of the transfer car have four wheels, but sometimes long-term Pushing a patient or going uphill requires a power assist mechanism to provide auxiliary power.

Referring to FIG. 15 , the power-assisting mechanism includes a power-assisted electric push rod 411 installed on the transfer frame body 47 through a bracket, a wedge-shaped block 412 connected to the telescopic end of the power-assisted electric push rod 411 and a power-assisted wheel 413 with its own power. The wedge-shaped block 412 is connected to the transfer The frame body 47 is slidably connected, specifically: a booster mounting plate 414 is fixedly installed on the transfer frame body 47, a horizontal guide rail 415 is fixed on the booster mounting plate 414, and the upper right-angle side of the wedge-shaped block 412 is fixedly mounted to cooperate with the horizontal guide rail 415. The horizontal slider 416 is slidably connected; the lower oblique side of the wedge block 412 is fixed with an oblique guide rail 417 in the same direction as the lower oblique side of the wedge block 412, and the oblique slider 418 is slidably connected to the oblique guide rail 417. 413 is installed on the wheel mounting frame 419, the upper part of the wheel mounting frame 419 is fixedly connected with the inclined sliding block 418, the side of the wheel mounting frame 419 is fixedly installed with a vertical guide rail 420, and the vertical guide rail has a vertical slide rail 420 which cooperates with it to slide. Block 421 , the vertical sliding block 421 is fixed on the transfer frame body 47 . The booster wheel is installed on the plug shaft 48, the lower part of the wheel mounting frame has an upper socket convex shaft 4191, the two ends of the rotating shaft of the booster wheel are square shafts 4131; the upper end of the socket shaft 48 has a lower socket corresponding to the socket shaft. The lower end of the socket convex shaft 481 has a socket 482 inserted on the square shaft 4131;

The working process of the assisting agency is as follows:

The booster wheel 413 is usually higher than the other four wheels of the transfer vehicle and does not participate in the work. When the booster wheel 413 needs to work, the booster electric push rod 411 pushes the wedge block 412 outward. The front and rear positions of the mounting bracket 419 do not change, resulting in a lower and lower contact surface between the wedge block 412 and the wheel mounting bracket 419, thereby pushing the wheel mounting bracket 419 to move downward, so that the booster wheel 413 touches the ground. Since the booster wheel 413 is self-contained For powered wheels, you only need to control the operation panel 43 or the remote control or turn on the switch of the booster wheel 413 to turn on the booster wheel 413 to provide assistance.

In this embodiment, the lifting device 33 is an electric push rod.

In this embodiment, an operation panel 43 is also provided at the end of the bed, which is used to control the operation to control the first motor 1 to drive the panel 14 to move left and right, to control the rotation of the first electric push rod 2 and the third motor 18 to drive the transmission belt 46 to rotate, It controls the lifting and lowering of the bed frame 8, the lifting of the assisting wheel 413, the working state of the assisting wheel 413, and the like.

In the present embodiment, the reserved hole 44 for the manual adjustment rod 37 to extend is located below the operation panel 43 . On the one hand, it is covered by the upper operation panel 43 and does not affect the overall appearance. In the middle, it is convenient for operators to operate nearby and in time.

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

The transmission belt 46 in this embodiment can be a special sheet that is easy to remove and wash, and for the convenience of disassembly, the side rollers 26 are divided into multiple sections, each section of the side roller 26 is connected to a transmission belt 46, and each transmission belt 46 can also be made of multi-section through Velcro In the way of sticking together, after which section of the transmission belt 46 is contaminated, it is only necessary to directly remove it and replace it with a clean section of the transmission belt 46 .

In this embodiment, a bottle holder 45 for placing an oxygen bottle is also fixedly installed under the bed frame 8 .

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

Since the left and right handrails 30 can be turned over, the panel 14 can be moved left and right, so the patient can be transferred regardless of whether the hospital bed is on the left or right side of the transfer cart. Parallel, and the edge of the bed frame 8 can be slightly overlapped with the hospital bed, and then the lifting device 33 is controlled to slowly lower the bed frame 8. When the limit rod 321 of the travel switch 32 touches the hospital bed, it passes the limit The rod 321 moves upward to position the travel switch 32 to determine the distance between the lower surface of the bed frame 8 and the patient bed. When the lower surface of the bed frame 8 is in contact with the hospital bed, the travel switch 32 immediately disconnects the switch of the lifting device 33 and the bed frame 8 stops. Lifting movement; taking the hospital bed on the left side of the transfer car as an example, the first motor 1 rotates to drive the upper body panel and the lower body panel to move to the left synchronously, and at the same time the transmission belt 46 rotates clockwise, when the panel 14 moves under the patient's body, the panel 14 While continuously moving down the patient's body, the transmission belt 46 uses friction to transfer the patient to the panel 14 by rotating clockwise; if the patient's posture on the panel 14 is inclined, the belt drive for moving the upper body and the lower body can be turned on respectively. The third motor 18 of the mechanism, or the speed of the two motors is different, adjusts the body position of the person. When the patients are all transferred to the panel 14, the transfer cart can be pushed to transfer the patients.

If the patient has just undergone surgery, it is inconvenient to transfer the bed by holding and lifting. This transfer car can transfer the patient smoothly. After the transmission belt 46 is contaminated, the transmission belt 46 can be replaced in sections as needed, and if the second guide roller 27 is contaminated After that, it is only necessary to pull the movable plate 144 outward to disengage the movable plate 144 from the butt bolts 28, which exposes the second guide roller 27, and the first support plate 291 is pulled to push the second guide roller 27 to the other end. By removing and replacing the second guide roller 27, the guide roller can be replaced quickly, and the time for cleaning the second guide roller 27 on the transfer vehicle is saved.

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

The transfer car can also provide active power as needed, which is convenient and labor-saving.

The coupling can be manually adjusted and disconnected to ensure the absolute safety of the patient.

In this embodiment, the panel 14 has an arched structure, the bolt installation groove 1431 opens downward, the center plate 143 is flat, and the outer edge of the movable plate 144 is inclined downward. The middle of the panel 14 is a little higher, and the left and right edges are relatively low and thin, 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 used to explain the present invention, but not to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims (8)

1. A transfer vehicle capable of bidirectionally transporting a patient, characterized in that: comprising: a bed frame and handrails (30) rotatably installed on the left and right sides of the bed frame, the handrail (30) comprising a handrail body (301) and at least one long connecting plate (302) connected to the end of the armrest body (301) and vertically arranged with the armrest body (301); Below the upper plate (83), there is at least one long connecting plate (302) by the armrest locking assembly (31) to position the armrest (30) above or below the upper plate (83) of the bed frame; the locking assembly (31) comprising a lock frame (311) slidably connected to the lower surface of the upper board (83) of the bed frame, and two parallel upper lock blocks (312) and lower locks fixed on the ends of the lock frame (311) block (313). 2. The transfer vehicle according to claim 1, characterized in that: the locking assembly (31) further comprises a locking frame mounting plate ( 316), the lock frame (311) includes a connecting rod (3111) passing through the locking frame mounting plate (316) and a pull rod (3112) fixedly installed at the end of the connecting rod (311), and the locking frame mounting plate ( 316) The end opposite to the armrest rotating shaft (303) has a positioning groove (315) for installing the armrest rotating shaft (303). 3. A transfer cart capable of bidirectionally transferring patients according to claim 2, wherein one end of the armrest rotating shaft (303) is rotatably connected to the lower surface of the bed frame upper plate (83), and the other end has For the square positioning block protruding outward, the positioning groove (315) is also square, and is used for positioning and installing the square positioning block. 4. A transfer cart capable of bidirectionally transporting patients according to claim 3, characterized in that: both sides of the long connecting plate (302) are provided with upper limit grooves (3021) and lower limit grooves (3021) respectively. 3022), when the armrest (30) is located above the upper board (83) of the bed frame, the long connecting plate (302) extends toward the outer edge of the bed, the armrest (30) is upward, and the upper locking block (312) is pressed against the upper limit When the armrest (30) is located under the upper board (83) of the bed frame, the armrest (30) is downward, and the lower locking block (313) is in contact with the lower limiting slot (3022). 5. A transfer vehicle capable of bidirectionally transporting patients according to claim 1, characterized in that: further comprising a panel (14) that can move left and right for scooping up and carrying patients, the panel (14) comprising a center plate (14). 143) and the movable plate (144), the center plate (143) is provided with a plurality of bolt installation grooves (1431) near the left and right edges, and the butt bolts (28) are inserted into the center plate (1431) from the bolt installation grooves (1431). 143), and the screw rods of the butt bolts (28) protrude from the left and right sides of the center plate (143), and the sides of the movable plate (144) are provided with matching holes corresponding to the screw rods of the butt bolts (28). ) screws are inserted into the butt holes of the movable plate (144) so that the movable plate (144) is butted with the central plate (143). 6. The transfer vehicle according to claim 5, characterized in that: the surface of the panel (14) further has a transmission belt (46) for driving the patient to ascend to the panel (14). A second guide roller (27) for guiding the drive belt (46) is installed below the movable plate (144). 7. A transfer vehicle capable of bidirectionally transporting patients according to claim 6, characterized in that: a guide roller quick release assembly is installed on the lower surface of the movable plate (144), and the guide roller quick release assembly includes a connection with the movable plate (144) a quick release mounting plate (292) fixedly installed at one end, a pin shaft (293) is pinned to the quick release mounting plate (292), and a pressure block (294) is fixedly mounted on the pin shaft (293). ), the pin (293) is also provided with a retaining spring (295) for returning the pin (293), and the pressing block (294) is integrally connected with the first support plate (291); the movable plate A second supporting plate (296) corresponding to the first supporting plate (291) is fixedly installed at the other end of the (144), and one end of the second guide roller (27) overlaps the second supporting plate (296) The other end is overlapped on the first support plate (291) and is pressed and fixed by the pressing block (294). )take out. 8 . The transfer vehicle according to claim 7 , wherein the second guide roller ( 27 ) is two round rollers arranged side by side, and the ends of the two round rollers are fixed on the On the guide roller connecting block (52), the guide roller connecting block (52) is overlapped on the first supporting plate (291) and the second supporting plate (296).

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