CN111631865A

CN111631865A - Automatic deviation rectifying device for transfer vehicle

Info

Publication number: CN111631865A
Application number: CN202010519319.0A
Authority: CN
Inventors: 王志峰
Original assignee: Ningbo Inspiration Medical Technology Co ltd
Current assignee: Ningbo Inspiration Medical Technology Co ltd
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-09-08

Abstract

The invention belongs to the technical field of medical transportation tool accessories, and particularly discloses an automatic deviation rectifying device for a transfer vehicle, which comprises a bed seat, wherein the top surface of the bed seat is slidably connected with a movable plate group, a transmission cloth belt rotates on the movable plate group, a connecting rod is fixed on the bed seat, the connecting rod is coaxially and slidably connected with a limiting cylinder, two ends of the limiting cylinder are fixedly provided with limiting discs for blocking the transmission cloth belt, the outer wall of the limiting cylinder is fixedly connected with a limiting sheet, one side of the bed seat, which is provided with two first optical coupling sensors matched with the limiting sheet, is electrically connected with a control module, and the control module is electrically connected with an adjusting mechanism for rectifying deviation of the transmission cloth belt; the deviation correcting device is in the initial state, and the limiting piece shields the two first optical coupling sensors simultaneously. The invention aims to provide an automatic deviation rectifying device for a transfer vehicle, which aims to solve the technical problem that a transfer cloth belt is easy to deviate.

Description

Automatic deviation rectifying device for transfer vehicle

Technical Field

The invention belongs to the technical field of medical transportation tool accessories, and particularly discloses an automatic deviation rectifying device for a transfer vehicle.

Background

At present, when a hospital carries a patient, for example, the patient is transferred from a ward to an operating room or from the operating room to the ward, a trolley with universal rollers mounted on bed legs is basically used. In the process of transferring the patient, the patient needs to be moved onto the cart from a sickbed or an operating table, pushed to a destination and then moved onto the operating table or the sickbed from the cart. Not only causing great pain to the patient, but also being beneficial to the healing of the wound.

To address this problem, the prior art provides a transfer cart that can carry a patient. For example, the chinese utility model patent publication No. CN204468461U discloses a medical patient transfer bed, which comprises a bed frame, a slide bed board mounted on the bed frame, a driving device mounted on the lower portion of the bed frame, and a roller assembly mounted on the bed frame, wherein the slide bed board comprises a lower slide plate and an upper slide plate mounted on the bed frame in sequence from bottom to top, the roller assembly at least comprises a fixed roller fixed on one side away from the moving end of the slide bed board, two slide roller shafts positioned on the upper and lower sides of the fixed roller shaft and capable of moving synchronously along the width direction of the bed frame, an upper transfer cloth belt wrapped on the outer side of the periphery of the upper slide plate and the roller assembly, a lower transfer cloth belt wrapped on the outer side of the periphery of the lower slide plate, and a first brake mechanism and a second brake mechanism mounted on the bed frame, the transfer bed has a simple structure and convenient operation, and ensures that the patient does not need to intervene manually, avoiding secondary damage to the patient.

Although the above-mentioned scheme can realize the problem of carrying the patient, this technical scheme needs the conveying strap to rotate and realizes the purpose of carrying the patient here. In the actual operation process, because the patient lies flat easily in the central position of skew conveying strap, and then leads to the patient to the inhomogeneous condition of atress of conveying strap, just leads to the problem that the skew appears in the conveying strap very easily, seriously hinders the smoothness nature of transferring patient in-process.

Disclosure of Invention

The invention aims to provide an automatic deviation rectifying device for a transfer vehicle, which aims to solve the technical problem that a transfer cloth belt is easy to deviate.

In order to achieve the purpose, the basic scheme of the invention is as follows: the automatic deviation rectifying device for the transfer trolley comprises a bed seat, a movable plate group and a sensing module, wherein the top surface of the bed seat is connected with the movable plate group in a sliding mode, the movable plate group is connected with a transfer cloth belt in a rotating mode, and the sensing module is used for detecting whether the transfer cloth belt deviates or not; the adjusting mechanism is used for adjusting the conveying cloth belt to a centered state; and the first control module is used for receiving the signal of the sensing module and controlling the adjusting mechanism to adjust the conveying cloth belt according to the signal fed back by the sensing module.

The working principle and the beneficial effects of the basic scheme are as follows:

1. compared with the prior art, the technical scheme can utilize the matching relation of the sensing module, the adjusting mechanism and the first control module to automatically judge whether the conveying cloth belt deviates or not. When the conveying cloth belt deviates, the first control module receives the signal of the sensing module and controls the adjusting mechanism to adjust and return the conveying cloth belt to the centered state according to the signal fed back by the sensing module. The technical scheme has the technical advantages of quick response and accurate feedback signal.

2. Compared with the prior art, the technical scheme has the advantages that the structure is simple, the function of monitoring and correcting the deviation of the conveying belt can be realized only by matching the sensing module, the adjusting mechanism and the first control module, and the technical advantage of low manufacturing cost and convenience in maintenance is achieved.

Further, sensing module includes the connecting rod, connecting rod fixed connection is on the bedstand, the coaxial sliding connection of connecting rod has a spacing section of thick bamboo, spacing section of thick bamboo both ends are fixed with the spacing dish that is used for blockking the conveying strap, spacing section of thick bamboo outer wall fixedly connected with is spacing, the bedstand is equipped with two first opto-coupler sensors of spacing piece complex in spacing section of thick bamboo one side.

Has the advantages that: when the deviation correcting device is in an initial state, the conveying cloth belt is located at a central position and does not deviate. This technical scheme utilizes the spacing dish of spacing section of thick bamboo both ends to realize the effect spacing to the transmission cloth area. When the condition of skew appears in the conveying strap, the conveying strap can realize promoting the technological effect of spacing section of thick bamboo through promoting spacing dish. In the process that the limiting barrel moves, the limiting sheet can firstly leave from the first optical coupler sensor, and the first optical coupler sensor which is not shielded by the limiting sheet sends an electric signal to the control module. The control module judges the deviation direction of the conveying cloth belt through the received electric signal, the control module sends an output signal to the adjusting mechanism after receiving the signal from the first optical coupling sensor, the adjusting mechanism is enabled to correct the deviation of the conveying cloth belt, and finally the adjusting mechanism is utilized to finish the technical effect of correcting the deviation of the conveying cloth belt. Compared with the prior art, the technical scheme can utilize the matching relation of the optical coupling sensor and the limiting cylinder to automatically judge whether the transmission cloth belt deviates or not, and has the technical advantages of quick response and accurate feedback signal.

Furthermore, adjustment mechanism includes the regulating roller, the axial both ends of regulating roller are fixed with the swing arm of buckling, the kink of swing arm rotates and connects the bed lateral wall, the swing arm is kept away from regulating roller one end and is leaned on the cam, the cam rotates and connects at the bed lateral wall, the cam axle center is connected with driving motor, driving motor electricity connect in control module, control module is used for controlling cam pivoted angle.

Has the advantages that: this technical scheme utilizes the function of rectifying in order to realize conveying strap to the regulating roller. The swing arm can effectively control the positions of two ends of the adjusting roll shaft in the swing process. When the deviation of the transmission cloth belt occurs, the tightness of one side is necessarily larger than that of the other side. Therefore, the adjusting rollers are abutted against the two ends of the conveying cloth belt so as to adjust the tightness of the two ends of the conveying cloth belt, and when the tightness of the two ends of the conveying cloth belt is consistent, the final correction function can be realized.

Furthermore, the swing arm is kept away from dancer rools one end and is rotated and be connected with auxiliary bearing, auxiliary bearing supports and leans on the cam outer wall.

Has the advantages that: this technical scheme utilizes the bearing in order to play the conflict each other of swing arm and cam, and auxiliary bearing can roll along the outer wall of cam on the one hand, realizes the swing arm and rotates the technological effect of change position along with the cam.

Further, the cam is coaxially rotated and connected with a plurality of anti-dazzling screens, the bed base side wall is fixedly connected with a second optical coupler sensor matched with the anti-dazzling screens, the second optical coupler sensor is electrically connected with the control module, notches used for matching with the second optical coupler sensor are formed in the outer edge of each anti-dazzling screen, and the notches of the anti-dazzling screens are not located on the same horizontal plane.

Has the advantages that: this technical scheme is through setting up the locate function of pivoted shutter disc in order to realize the cam. In the process of cam rotation, the shading disc also rotates on the second optical coupler sensor. When the breach of window shield disc passes through second opto-coupler sensor, second opto-coupler sensor is activated and sends the signal of telecommunication to control module, and then realizes the function of cam pinpointing, improves the precision of regulating roller.

Further, the movable plate group comprises a top plate and a bottom plate, the top plate and the bottom plate are parallel to each other, and a plate joint is fixedly connected between the top plate and the bottom plate.

Has the advantages that: this technical scheme is through setting up two roof and the bottom plate that are parallel to each other, and roof and bottom plate can play the supporting role to the patient on the one hand, make the patient lie the top surface of roof steadily, and this technical scheme of on the other hand can also utilize the gap between roof and the bottom plate, presss from both sides tightly the sheet on the bed body. The edge of the bed sheet is plugged into the gap between the top plate and the bottom plate, so that the problem that the transportation or transfer of the transfer trolley is affected by the leakage of the bed sheet is avoided.

Further, bed seat fixedly connected with driving motor, driving motor's output is fixed with first chain wheel, the driving motor lateral wall rotates and is connected with the second chain wheel, second chain wheel axial direction is on a parallel with first chain wheel, the coaxial fixedly connected with transfer line of second chain wheel, the transfer line extends and runs through the bed seat, the bed seat lateral wall rotates and is connected with a plurality of third chain wheels, and the position that a plurality of third chain wheels distribute encloses to close and is the shape of rectangle, the coaxial fixed connection in transfer line axial both ends is on third chain wheel, and the meshing has annular first chain on a plurality of third chain wheels, and the meshing has annular second chain between first chain wheel and the second chain wheel.

Has the advantages that: this technical scheme adopts driving motor as drive power, utilizes the mode of chain conveying, realizes turning into driving motor's circumferential direction the linear motion that drives movable plate group, finally drives the linear motion that board connects and movable plate group under the rotation of third chain.

Further, bed seat lateral wall is opened along the horizontal direction has the slide, plate joint lateral wall fixedly connected with slider, slider sliding connection is in the slide.

Has the advantages that: according to the technical scheme, the sliding connection relation between the slide way and the slide block is utilized to realize the guiding effect of the movable plate group in the moving process relative to the bed base, and the stability of the movable plate group in the moving process is effectively improved.

Furthermore, the outer end of the top plate is bent towards one side close to the bottom plate, and the bending angle is 10-30 degrees.

Has the advantages that: this technical scheme utilizes the crooked structure of roof tip to the reinforcing is to the effect of sheet clamp force between roof and the bottom plate gap, avoids the sheet to appear not hard up the problem emergence of landing. The bent end also facilitates insertion from the surface of the bed into the underside of the patient's back during extension of the top plate.

Furthermore, a plurality of rollers are fixedly connected to the bottom of the bed seat.

Has the advantages that: according to the technical scheme, the idler wheels are additionally arranged to realize the transferring and conveying functions of the medical transfer trolley.

Drawings

Fig. 1 is a schematic front view of a moving plate set mechanism of a medical transfer vehicle without a cloth belt conveying and automatic deviation rectifying device according to an embodiment of the present invention;

FIG. 2 is a schematic right-side view of FIG. 1;

FIG. 3 is a schematic front view of a deviation rectifying device of a medical transfer cart according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic right-view of the automatic deviation rectification apparatus of FIG. 3 without the moving plate set transmission mechanism;

fig. 6 is a partially enlarged schematic view of a portion B in fig. 5.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: chassis 1, walking wheel 2, support column 3, bed seat 4, slide 5, roof 6, bottom plate 7, conveying strap 8, first gear motor 9, backup pad 10, first chain wheel 11, second chain wheel 12, third chain wheel 13, first chain 14, second chain 15, transfer line 16, board joint 17, strip piece 18, connecting rod 19, spacing section of thick bamboo 20, spacing dish 21, spacing piece 22, first opto-coupler sensor 23, regulating roller 24, swing arm 25, first arm 2501, second arm 2502, cam 26, shading plate 27, auxiliary bearing 28, second opto-coupler sensor 29, dead lever 30.

The embodiment is basically as shown in the attached figures 1 and 2: an automatic deviation rectifying device of a medical transfer vehicle comprises a chassis 1, wherein four corners of the bottom surface of the chassis 1 are respectively fixed with an unpowered walking wheel 2 through bolts. The left end and the right end of the top of the chassis 1 are respectively welded and fixed with a vertical telescopic supporting column 3. The bottom surface of the hinged bed seat 4 of the support column 3 and the top surface of the bed seat 4 are planes, and two opposite sides of the bed seat 4 are respectively provided with a slide way 5 along the horizontal direction.

The top surface of the bed seat 4 is provided with a movable plate group which comprises a top plate 6 and a bottom plate 7 which are parallel to each other. As shown in fig. 5, the outer part of the top plate 6 is wrapped and rotatably connected with a transmission cloth belt 8, a part of the transmission cloth belt 8 extends in the inner part of the bed seat 4, and the inner part of the bed seat 4 is rotatably connected with four rotating rollers for transmitting and rotating the transmission cloth belt 8. The right end of the top plate 6 is bent downward by 20 °. The top bottom surface central thread of bed seat 4 is fixed with first gear motor 9, and the first chain wheel 11 of output fixedly connected with of first gear motor 9, and first gear motor 9 lateral wall welded fastening has backup pad 10, rotates on the backup pad 10 and is connected with second chain wheel 12, and the meshing has second chain 15 on first chain wheel 11 and the second chain wheel 12. The second chain wheel 12 is coaxially connected with a transmission rod 16, and the axial direction of the transmission rod 16 is parallel to the axial direction of the first speed reducing motor 9. Two ends of the shaft of the transmission rod 16 are respectively penetrated and rotatably connected on the side wall of the bed seat 4. The side walls of the two ends of the bed seat 4 are respectively connected with four third dental disks 13 in a rotating way, and the distribution positions of the four third dental disks 13 are enclosed to form a rectangular shape. The two axial ends of the transmission rod 16 are respectively fixed on the third cone disc 13 in a coaxial key connection mode. An endless first chain 14 is engaged on the four third discs 13.

Two sides between the top plate 6 and the bottom plate 7 are respectively fixed with a plate joint 17 with the same size and structure through threads, the bottom end of the plate joint 17 is fixed with a sliding block close to the side wall of the bed seat 4 through threads, and the sliding block is connected in the slideway 5 of the bed seat 4 in a sliding mode. The side wall of the plate joint 17 close to the moving plate group is also provided with a locking pin for fixing on the first chain 14.

As shown in fig. 2 and fig. 3, the bed base 4 is further welded and fixed with a connecting rod 19 below the moving plate group, the axial direction of the connecting rod 19 is parallel to the horizontal plane, the outer wall of the connecting rod 19 is coaxially sleeved with a limiting cylinder 20, and the connecting rod 19 is positioned at the inner side of the conveying cloth belt 8. The axial two ends of the limiting cylinder 20 are respectively and coaxially fixed with limiting discs 21, and the outer diameter of each limiting disc 21 is larger than the distance between the transmission cloth belt 8 and the connecting rod 19. The outer wall of the middle position of the limiting cylinder 20 is fixedly welded with a limiting sheet 22, and the limiting sheet 22 is parallel to the horizontal plane. The bed seat 4 is fixed with the support at the adjacent one side screw thread of connecting rod 19, and the support is close to the one end screw thread of connecting rod 19 and is fixed with two first opto-coupler sensors 23 of model ITR9608 of the new hundred million coloured products in Guangzhou, and two first opto-coupler sensors 23 are located same level, and the interval between two first opto-coupler sensors 23 equals the length of spacing piece 22. In the initial state, two ends of the limiting sheet 22 just shield the two first optocoupler sensors 23 at the same time. The limiting cylinder 20, the limiting sheet 22 and the limiting disc 21 are integrally formed.

As shown in fig. 5 and fig. 6, an adjusting roller 24 is further disposed in the bed base 4, two axial ends of the adjusting roller 24 extend out of the bed base 4, and two axial ends of the adjusting roller 24 are respectively rotatably connected with a swing arm 25. The swing arm 25 includes a first arm 2501 and a second arm 2502, and the first arm 2501 and the second arm 2502 are integrally formed. The included angle between the first arm 2501 and the second arm 2502 is 90 degrees, the swing arm 25 is rotatably connected to the side wall of the bed seat 4, and the rotating connection position of the swing arm 25 and the bed seat 4 is located at the connection position of the first arm 2501 and the second arm 2502. The adjusting roller 24 is rotatably connected to a side wall of the first arm 2501 of the swing arm 25. An auxiliary bearing 28 is rotatably connected to the free end of the second arm 2502, and the axial direction of the auxiliary bearing 28 is parallel to the axial direction of the adjustment roller 24. The bed 4 is rotatably connected with a cam 26 right below the swing arm 25, and the outer wall of the auxiliary bearing 28 abuts against the outer edge surface of the cam 26. The outer edge of the cam 26 has two arcs, and when the auxiliary bearing 28 is located on the surface of the two arcs, the first arm 2501 of the swing arm 25 is tilted to the right or to the left with respect to the original position. The adjusting roller 24 is also rotatably connected with the horizontal strip-shaped sheet 18 at both axial ends. The side wall of the bed seat is provided with a sliding groove for accommodating the strip-shaped piece 18 to horizontally and freely slide. One end of the strip-shaped sheet 18 is fixedly inserted with a compression spring, and the end of the compression spring far away from the strip-shaped sheet 18 is fixedly inserted with the inner wall of the sliding chute.

As shown in figures 3 and 4, the axis key of the cam 26 is fixedly connected with a fixed rod 30, the fixed rod 30 is rotatably connected to the side wall of the bed base 4, and one side of the fixed rod 30 far away from the cam 26 is coaxially and fixedly connected with three shading discs 27. The outer edge of each light shielding plate 27 is provided with a notch, and the notches of the light shielding plates 27 are not on the same horizontal plane. The lateral wall welded fastening of bed seat 4 has the auxiliary stand, and threaded fastening has the second opto-coupler sensor 29 that the model of the new hundred million coloured products of three Guangzhou is ITR9608 on the auxiliary stand, and every second opto-coupler sensor 29 corresponds the top that is located every anti-dazzling screen 27, and anti-dazzling screen 27 can shelter from the light path of second opto-coupler sensor 29 completely, and the breach of anti-dazzling screen 27 can't shelter from the light path of second opto-coupler sensor 29. The end of the fixed rod 30 is coaxially and fixedly connected to the second speed reducing motor. And the first optical coupler sensor 23, the second optical coupler sensor 29 and the second speed reducing motor are all electrically connected to the MCU control module. As shown in fig. 3, the gap of the light shielding disc 27 at the leftmost end is matched with the corresponding second optical coupler sensor 29 to enable the adjusting roller 24 to be in a state of abutting against the conveying cloth belt 8; the gap of the light shielding disc 27 positioned in the middle is matched with the corresponding second optical coupler sensor 29 to enable the adjusting roller 24 to be in a horizontal state; the gap of the shading disc 27 at the rightmost end is matched with the corresponding second optical coupler sensor 29, so that the adjusting roller 24 is in a state of loosening the cloth conveying belt 8.

The specific implementation process is as follows: when a patient lies on a sickbed and needs to be transferred, the first speed reducing motor 9 is started firstly, the first speed reducing motor 9 drives the first chain wheel 11 to rotate, the first chain wheel 11 drives the second chain 15 and the second chain wheel 12 to rotate in the rotating process, and the second chain wheel 12 drives the transmission rod 16 to rotate in the rotating process. As the transmission rod 16 rotates, the third chain wheel 13 at both ends of the transmission drives the first chain 14 to rotate clockwise. During the clockwise rotation of the first chain 14, the plate joint 17 slides to the right along the slideway 5, and the sliding of the plate joint 17 drives the top plate 6 and the bottom plate 7 to slide to the right together. During the movement of the top plate 6 and the bottom plate 7, the outer end of the top plate 6 is inserted into the back of the patient.

Then the transmission cloth belt 8 is started to rotate on the movable plate group, and the patient moves along with the transmission cloth belt 8 during the rotation process, so that the patient can lie on the top plate 6 completely. Since the deviation correcting device is symmetrical in both left and right structures, only one case where the transfer tape 8 is deviated is exemplified here. When the transfer tape 8 is displaced to the left, as shown in fig. 2, the tightness of the left end of the transfer tape 8 is greater than the tightness of the right end of the transfer tape 8. As shown in fig. 3, the left end of the transmission cloth belt 8 will abut against the outer wall of the limiting disc 21 and drive the limiting disc 21 to move to the left side. In the process of the left side movement of the limiting disc 21, because of the limiting sheet 22, the limiting cylinder 20 and the limiting disc 21 are of an integral structure, the limiting sheet 22 can also move to the left side, the left side movement process of the limiting sheet 22 causes the first optical coupler sensor 23 located at the right end to lose the blocking of the limiting sheet 22, and further the first optical coupler sensor 23 at the right end generates a photoelectric effect, the first optical coupler sensor 23 which detects the change sends an electric signal to the control module, the control module sends an electric signal for starting the clockwise rotation of the second speed reducing motor on the right side of the bed base 4 and an electric signal for starting the counterclockwise rotation of the second speed reducing motor on the left side of the bed base 4 after receiving the electric signal from the first optical coupler sensor 23 at the right end, and meanwhile the control module waits for receiving the electric signal of the second optical coupler sensor 29 at. During the rotation of the cam 26, the shutter disk 27 also rotates relative to the second photo-coupler sensor 29. As shown in fig. 3, when the gap of the light shielding plate 27 at the leftmost end passes through the second optical coupler sensor 29, the second optical coupler sensor 29 receives a photosensitive signal and sends an electric signal to the control module, and the control module sends a signal for stopping the rotation of the second reduction motor after receiving the electric signal of the second optical coupler sensor 29. In this state, the cam 26 tilts the swing arm 25 to rotate to the left side with respect to the initial position, and the end of the dancer roller 24 abuts on the surface of the transfer tape 8.

In the process of rotating the second speed reducing motor on the right side of the bed seat 4, the cam 26 drives the swing arm 25 to rotate anticlockwise, and the strip-shaped piece 18 moves rightwards under the guiding effect of the sliding groove in the process of rotating the swing arm 25 anticlockwise. And then make the first arm body 2501 of swing arm 25 move to the outside, finally make the right-hand member of dancer roll 24 touch at the right-hand member of conveying strap 8, increase the tightness of conveying strap 8 right-hand member, and then reach the technical effect of rectifying a deviation to conveying strap 8 right-hand member regulation.

Meanwhile, in the process of rotating the second speed reducing motor on the left side of the bed seat 4, the cam 26 drives the swing arm 25 to rotate clockwise, and in the process of rotating the swing arm 25 clockwise, the strip-shaped piece 18 moves leftwards under the guiding effect of the sliding groove. And then the first arm 2501 of the swing arm 25 moves to the inner side, finally the left end of the adjusting roller 24 moves to the direction far away from the conveying cloth belt 8, the tightness of the left end of the conveying cloth belt 8 is reduced, the conveying cloth belt 8 at the left end is loosened, and the technical effect of adjusting and correcting the left end of the conveying cloth belt 8 is achieved

Finally, as the transfer cloth belt 8 continues to rotate on the moving plate group, the transfer cloth belt 8 is restored to a normal state by the regulating roller 24. In the process of recovering the conveying cloth belt 8, the limiting piece 22 is pushed to move and return to the position of the first optical coupling sensor 23 at the right end.

Finally, as the transfer cloth strip 8 continues to rotate on the moving plate group, the transfer cloth strip 8 is restored to the centered state under the action of the adjusting rollers 24, namely, the transfer cloth strip 8 is positioned at the center of the bed. In the process of recovering the conveying cloth belt 8, the limiting piece 22 is pushed to move and return to the position of the first optical coupling sensor 23 at the right end.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.

Claims

1. A automatic deviation correcting device for shifting car, including the bed, bed top surface sliding connection has movable plate group, it is connected with conveying strap, its characterized in that to rotate on the movable plate group: the device also comprises a sensing module, wherein the sensing module is used for detecting whether the conveying cloth belt deviates or not;

the adjusting mechanism is used for adjusting the conveying cloth belt to a centered state;

the first control module is used for receiving the sensing module signal and controlling the adjusting mechanism to adjust the conveying cloth belt according to the signal fed back by the sensing module.

2. The medical electric transfer cart according to claim 1, characterized in that: the sensing module comprises a connecting rod, the connecting rod is fixedly connected to a bed base, the connecting rod is coaxially connected with a limiting cylinder in a sliding mode, two ends of the limiting cylinder are fixedly provided with limiting discs used for blocking conveying cloth belts, the outer wall of the limiting cylinder is fixedly connected with limiting pieces, and the bed base is provided with two first optocoupler sensors matched with the limiting pieces on one side of the limiting cylinder.

3. The automatic deviation rectification device for the transfer car according to claim 2, wherein: the adjusting mechanism comprises an adjusting roller, bent swing arms are fixed to two axial ends of the adjusting roller, the bent portions of the swing arms are rotatably connected with the side wall of the bed, one ends, far away from the adjusting roller, of the swing arms abut against the cam, the cam is rotatably connected to the side wall of the bed, the axis of the cam is connected with a driving motor, the driving motor is electrically connected to the control module, and the control module is used for controlling the rotating angle of the cam.

4. The automatic deviation rectification device for transfer cart according to claim 3, wherein: one end, far away from the adjusting roller, of the swing arm is rotatably connected with an auxiliary bearing, and the auxiliary bearing is abutted against the outer wall of the cam.

5. The automatic deviation rectification device for transfer cart according to claim 3, wherein: the utility model discloses a bed seat, including bed seat lateral wall, control module, cam coaxial rotation is connected with a plurality of anti-dazzling screens, bed seat lateral wall fixedly connected with is with anti-dazzling screen complex second opto-coupler sensor, second opto-coupler sensor electricity is connected control module, open the anti-dazzling screen outer fringe has and is used for with second opto-coupler sensor to the complex breach, the breach of each anti-dazzling screen all is not on same horizontal plane each other.

6. The automatic deviation rectification device for transfer cart according to claim 1, wherein: the movable plate group comprises a top plate and a bottom plate which are parallel to each other, and a plate joint is fixedly connected between the top plate and the bottom plate.

7. The automatic deviation rectification device for the transfer car according to claim 2, wherein: bed seat fixedly connected with driving motor, driving motor's output is fixed with first chain wheel, the driving motor lateral wall rotates and is connected with the second chain wheel, second chain wheel axial direction is on a parallel with first chain wheel, the coaxial fixedly connected with transfer line of second chain wheel, the transfer line extends and runs through the bed seat, the bed seat lateral wall rotates and is connected with a plurality of third chain wheels, and the position that a plurality of third chain wheels distribute encloses to close and is the shape of rectangle, the coaxial fixed connection in transfer line axial both ends is on third chain wheel, and the meshing has annular first chain on a plurality of third chain wheels, and the meshing has annular second chain between first chain wheel and the second chain wheel.

8. The automatic deviation rectification device for transfer cart according to claim 7, wherein: the bed seat lateral wall is opened along the horizontal direction has the slide, board joint lateral wall fixedly connected with slider, slider sliding connection is in the slide.

9. The automatic deviation rectification device for transfer cart according to claim 8, wherein: the outer end of the top plate is bent towards one side close to the bottom plate, and the bending angle is 10-30 degrees.

10. The automatic deviation rectification device for transfer cart according to claim 1, wherein: the bottom of the bed seat is fixedly connected with a plurality of rollers.