CN114288106A

CN114288106A - Transfer sickbed

Info

Publication number: CN114288106A
Application number: CN202111599777.0A
Authority: CN
Inventors: 刘仁武
Original assignee: Individual
Current assignee: Dalian central hospital
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-04-08
Anticipated expiration: 2041-12-24
Also published as: CN114288106B

Abstract

The invention discloses a transfer sickbed, which comprises a bedstead, wherein a crawler-type power-driven bed board is detachably connected to the bedstead, and the crawler-type power-driven bed board comprises a driving bottom board connected with the bedstead, at least one pair of moving guide rails symmetrically fixed on the driving bottom board along the two ends of the bedstead in the length direction, a moving support arranged on the moving guide rails, at least one pair of movable wheel carriers arranged on the moving support, and a conveyor belt device erected on the movable wheel carriers. The invention can stably transfer the patient from the operating room to the bed without complex operation, thereby avoiding secondary physical labor of medical care personnel, avoiding the change of ward layout, enabling the transfer of the patient to be more efficient and bringing obvious help to the improvement of the operating efficiency of the medical system of the hospital.

Description

Transfer sickbed

Technical Field

The invention belongs to the technical field of general surgery department, and particularly relates to a transfer sickbed for a patient with mobility inconvenience in general surgery department.

Background

The patient needs to be transferred from the operating room to the ward after the operation, generally speaking, directly transfers from the operating table to the movable sickbed, and then is directly used as the treatment bed of the patient after being pushed to the ward by the medical staff, in the process, the patient needs to be transferred by the whole-course cooperation of the medical staff, so that the inconvenience is caused: firstly, the patient needs to be moved from an operating table to a sickbed by cooperation of a plurality of people, which is troublesome; secondly, the patient bed needs to be moved from the ward to the operating room in advance, and the layout of the ward needs to be changed in the process, and certain manpower is also consumed. Therefore, unnecessary obstacles are created for hospitals to improve the operating efficiency of medical systems.

If a sickbed specially used for transferring patients exists, the patients can be transferred into the sickroom more comfortably in a mode of minimum labor intensity and most suitable for the patients after completing operations without additionally moving the sickbed, and the requirements of various different patients can be met, the trouble caused by the inconvenience on medical care work can be effectively solved, and the operation of a medical system can be more efficient and quicker.

Disclosure of Invention

Aiming at the technical defects in the background art, the invention provides a transfer sickbed, which solves the technical problems and meets the actual requirements, and the specific technical scheme is as follows:

a transfer sickbed comprises a bedstead, wherein the bedstead is provided with bed legs for moving positions, a crawler-type mobile bed board is detachably connected on the bedstead, the crawler-type mobile bed board comprises a driving bottom board detachably connected with the bedstead, at least one pair of moving guide rails symmetrically fixed on the driving bottom board along the two ends of the length direction of the bedstead, a moving support arranged on the moving guide rails in a movable connection manner, at least one pair of movable wheel carriers arranged on the moving support and capable of synchronously switching between a horizontal movement state and a vertical movement state, and a conveyor belt device erected on the movable wheel carriers and moving along with the movable wheel carriers and capable of automatically moving, wherein a plurality of movable insertion points for synchronous movement are uniformly arranged on the conveyor belt device along the movement direction of the conveyor belt device, and the movable insertion points are matched with limb positioning insertion plates capable of being movably connected with the movable insertion points, the limb positioning insertion plate is provided with at least one cambered surface which is adaptive to the bending of the outer contour of a human limb, and the movable insertion points are connected with braking parts connected with the conveyor belt device.

As a further technical solution of the present invention, the driving bottom plate includes a movable jaw provided at an edge or a side surface of a bottom surface thereof and having two hinged arms, the movable jaw being engaged with the bed frame, and an installation insertion hole into which a strip-shaped positioning member is inserted, the movable jaw is provided adjacent to the installation insertion hole, a bottom surface area of the driving bottom plate is provided with a power supply device installation site, and a folding leg folded at a side surface of the driving bottom plate to stabilize the bed is electrically connected to the power supply device installation site.

As a further technical scheme of the present invention, the movable guide rail includes a plurality of screw pairs for displacement fixed on the top surface of the driving base plate, a guide rail seat movably connected with the screw pairs through a screw moving mechanism, and a support fixedly connected to the guide rail seat, two ends of the guide rail are provided with electromagnetic relay switches connected with normally closed spring jaws, and two sides of the screw pairs are provided with bayonets corresponding to the spring jaws.

As a further technical scheme of the invention, the movable support is U-shaped and is fixedly connected with the support, a closed movable groove matched with the profile of the movable support is arranged on the movable support, and the wall of the movable groove is uniformly provided with a whole circle of a plurality of positioning notches arranged along the length direction of the movable groove.

As a further technical solution of the present invention, the movable wheel carrier includes a plurality of main shafts connected between different movable supports, a shaft carrier connected between different main shafts, driving parts disposed at both ends of the main shafts, a wheel carrier hinged at both ends of the main shafts in a "0" shape, a pair of olecranon gears disposed at both ends of the wheel carrier in a length direction and cooperating with the positioning notches in opposite directions, a transmission member connected between the driving parts and the olecranon gears, and a driving motor driving the main shafts and fixed on the shaft carrier, wherein the olecranon gears are hinged with the wheel carrier through a ratchet mechanism, and a self-locking direction of the ratchet mechanism is consistent with a tooth tilting direction of the olecranon gears.

As a further technical scheme, the ratchet mechanism is consistent with a ratchet mechanism of an automobile safety belt in structure and comprises a ratchet wheel and a claw structure matched with the ratchet wheel, wherein the ratchet wheel is hinged with the wheel frame, the claw structure is fixedly connected with the olecranon gear, the claw structure is sleeved outside the ratchet wheel and hinged with the wheel frame, and the ratchet wheel is in transmission connection with the transmission piece.

As a further technical scheme, the conveying belt device comprises a belt wheel shaft movably connected with the wheel carrier and a belt wheel motor driving the belt wheel shaft and fixedly connected with the wheel carrier, the end part of the belt wheel shaft is connected with a metal belt formed by hinging a plurality of metal sheets in a head-to-tail mode through a belt wheel, the surface of the metal belt is wrapped with a heat insulation layer, and a plurality of groups of movable insertion points are arranged in the width direction of the metal belt along the advancing direction of the metal belt.

As a further technical scheme of the invention, the end part of the movable insertion point is connected with a brake connecting rod perpendicular to the tangential direction of the transmission surface of the conveyor belt device, the brake connecting rod is independently connected with a brake part through a plane connecting rod transmission part, the brake part is a brake switch, and the ratio of the force arm of the brake connecting rod to the force arm from the root of the limb positioning insertion plate to the center of the outer contour curved arc surface is not less than 1: 5.

As a further technical scheme, the limb positioning insertion plate is connected with a plug matched with the movable insertion points, the plug is provided with a magnet, the movable insertion points are connected in series through a closed loop circuit and are independently connected with a magnetic suction switch, and the magnetic suction switch is connected with a power source circuit of the conveyor belt device.

The invention has the beneficial effects that: after a patient is transferred from an operating table to the transfer sickbed, after medical staff moves the transfer sickbed to a position corresponding to a patient bed, the influence on the patient can be reduced to a very low degree without complex operation, the patient is stably transferred to the patient bed, the sickbed does not need to be moved in advance, secondary manual labor of the medical staff is avoided, the change of the layout of a ward is avoided, the transfer of the patient can be more efficient, discomfort generated when the patient is transferred is relieved, the recovery of the patient after the operation is facilitated, and obvious help is brought to the improvement of the operating efficiency of a medical system of a hospital.

Drawings

Fig. 1 is a schematic view of the overall structure for transferring the end face orientation of the sickbed.

Fig. 2 is a schematic diagram illustrating the effect of the transfer bed according to the present invention.

Fig. 3 is a schematic top view of the movable rail on the driving base plate.

FIG. 4 is a schematic view of one embodiment of a spring pawl.

Fig. 5 is a partially enlarged view of the moving groove.

Fig. 6 is a schematic view of the matching structure of the movable wheel carrier and the transmission belt device.

Fig. 7 is an enlarged view of a part of the structure of the opposite side of the movable wheel carrier.

FIG. 8 is a radial schematic view of a structure matching the ratchet mechanism and the olecranon gear.

Fig. 9 is a schematic view of the arrangement of the movable insertion points on the metal belt.

Fig. 10 is a partial enlarged view of the fitting structure of the movable insertion point.

Wherein: the bed frame 1, the bed legs 2, the driving bottom plate 3, the movable claws 30, the mounting jacks 31, the power supply device mounting positions 32, the folding legs 33, the moving guide rails 4, the screw pair 40, the screw moving mechanism 41, the guide rail seats 42, the supports 43, the spring claws 44, the bayonets 45, the moving support 5, the moving grooves 50, the positioning notches 51, the movable wheel carrier 6, the main shaft 60, the shaft carrier 61, the driving part 62, the wheel carrier 63, the olecranon gear 64, the transmission member 65, the driving motor 66, the ratchet mechanism 67, the ratchet 670, the claw structure 671, the conveyor belt device 7, the pulley shaft 70, the pulley motor 71, the metal pulley belt 72, the movable insertion points 8 and the limb positioning insertion board 9, the outer contour curved surface 90, the plug 91, the braking part 10, the braking connecting rods 11 and the plane connecting rod transmission member 12.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings and related embodiments, which are not limited to the following embodiments, and the present invention relates to relevant necessary components in the technical field, and should be regarded as known in the art and known to those skilled in the art and understood by the technical field.

Referring to all the drawings, a transfer hospital bed comprises a bed frame 1, wherein the bed frame 1 is provided with bed legs 2 for moving positions, a crawler-type mobile bed board is detachably connected to the bed frame 1, the crawler-type mobile bed board comprises a driving bottom plate 3 detachably connected with the bed frame, at least one pair of moving guide rails 4 symmetrically fixed on the driving bottom plate 3 along the two ends of the bed frame 1 in the length direction, a moving bracket 5 arranged on the moving guide rails 4 in a movable connection manner, at least one pair of movable wheel carriers 6 arranged on the moving bracket 5 and capable of synchronously switching between a horizontal movement state and a vertical movement state, and a conveyor belt device 7 erected on the movable wheel carriers 6 and moving along with the movable wheel carriers and capable of automatically moving, wherein a plurality of movable insertion points 8 moving synchronously are uniformly arranged on the conveyor belt device 7 along the moving direction, the movable insertion points 8 are matched with limb positioning insertion plates 9 which can be movably connected with the movable insertion points, the limb positioning insertion plates 9 are provided with at least one outer contour curved arc surface 90 which is suitable for the limbs of a human body, and the movable insertion points 8 are connected with braking parts 10 connected with the conveyor belt devices 7.

Referring to fig. 1 and 2, an arrow in fig. 2 is a moving direction of an overall structure, and in an initial state, a bed plate structure of the transfer hospital bed of the present invention is the same as a normal transfer hospital bed, when a patient is transported to a personal ward, the driving base plate 3 can be selectively lifted to adjust a conveyor belt device 7 on which the patient lies to a height suitable for the hospital bed or a height flush with the hospital bed by default, wherein the lifted structure can be set with reference to a lifting platform structure in the prior art, that is, based on the position of the bed frame 1, the driving base plate 3 is integrally formed by lifting a platform connected above in a lifting bracket manner, and then the moving bracket 5 on the moving guide rail 4 is driven to move the patient to the hospital bed, the conveyor belt device 7 and the movable wheel carrier 6 work in cooperation with each other to move outwards from both sides and then move upwards, that is, the operation of the conveyor belt device 7 and the displacement of the conveyor belt device are synchronously carried out along with the action of the movable wheel carrier 6, therefore, the state that a certain position on the conveyor belt device 7 is kept relatively static with the patient can be realized, the patient is slowly drawn away from the back of the patient, and the barriers are formed from two sides so as to prevent the patient from generating the displacement of the transverse limbs, the discomfort of the patient during the transfer is relieved, meanwhile, the limb positioning plate arm 9 can realize the relative rest after being attached to the patient along with the movement of the conveyor belt device 7, the limb of the patient is further stabilized until the patient is completely transferred to a sickbed, the movable support 5 is reset, the conveyor belt device 7 is reset, the driving bottom plate 4 is reset, and the transfer of the patient is completed. The device can reduce the discomfort of the patient when the patient is transferred to the sickbed and the difficulty of the medical staff when the patient is transferred.

Referring to fig. 1, in the present invention, it should be noted that the bed frame 1, together with the bed legs 2, can be set up according to the structure of the existing transfer bed, and therefore, the movement can be realized by adding universal wheels or power wheels to the bed legs 2. The limb positioning insertion plate 9 can be inserted by medical staff through selecting a proper movable insertion electrode 8 after a patient lies on a bed plate formed by the conveyor belt devices 7, so that the limbs of the patient cannot be easily changed, the limbs of the patient can be better matched by utilizing the curved cambered surface 90 of the outer contour, the limbs of the patient are stabilized, the transfer work is convenient, and the braking part 10 is fixed on the movable wheel frame 6 according to the requirements of reasonable deduction and mechanical assembly, so that the drawing is omitted.

Referring to fig. 1, as a preferred embodiment of the present invention, the driving plate 3 includes a movable claw 30 having two hinged arms and disposed at an edge or a side of a bottom surface thereof to be engaged with the bed frame 1, and a mounting insertion hole 31 into which a strip-shaped positioning member is inserted, the movable claw is disposed adjacent to the mounting insertion hole 30, a power supply device mounting portion 32 is disposed at a bottom surface area of the driving plate 3, and a folding leg 33 folded at a side of the driving plate 3 to stabilize the bed 1 is electrically connected to the power supply device mounting portion 32.

In the embodiment, the driving base plate 3 is connected to the mounting hole 31 by the movable claw 30, wherein the movable claw 30 can be understood as a clamping structure similar to an elastic clip, and the mounting hole 31 can be understood as a positioning hole disposed on the driving base plate 3, and the bed frame 1 is also provided with a positioning hole adapted to the mounting hole 31, and the positioning holes are mutually positioned by a strip-shaped positioning member, and the strip-shaped positioning member can be understood as a positioning bolt or a positioning screw pair, and in addition, the mounting hole 31 can also be a connecting hole disposed on a buckle structure and a closed loop is formed by the strip-shaped positioning member passing through the buckle structure to complete the fixation. The power unit mounting location 32 is understood to be the mounting location for an ac power source or the mounting location for a stationary battery, and is generally preferred to be the mounting location for a stationary battery for patient transfer, while the folding legs 33 are similar in structure to the stabilizing legs of a prior art lift truck, and are used for maintaining the overall balance and safety of the whole equipment after the center of gravity of the whole equipment shifts during patient transfer.

Referring to fig. 1, 2, 3 and 4, as a preferred embodiment of the present invention, the movable guide rail 4 includes a plurality of screw pairs 40 fixed on the top surface of the driving base plate 3 for displacement, a guide rail seat 42 movably connected to the screw pairs 40 through a screw moving mechanism 41, and a support 43 fixedly connected to the guide rail seat 42, two ends of the guide rail 4 are provided with electromagnetic relay switches connected to normally closed spring jaws 44, and two sides of the screw pairs 40 are provided with bayonets 45 corresponding to the spring jaws 44.

In the present embodiment, in combination with the bed frame 1 and the previous embodiment, the movable rails 4 are mounted on the driving base plate 3 on the top surface of the driving base plate 3 in a manner to satisfy the requirement of structural strength, and preferably, a plurality of sets of the movable rails 4 are provided to satisfy the requirement of connection strength when the center of gravity is shifted, so that a plurality of screw pairs 40 for performing the displacement operation should be provided, specifically, at least 2, preferably at least 4, and at least 2 or more screw pairs 40 are also preferably provided on the same screw pair by the screw moving mechanism 41 and are arranged close to each other to satisfy the requirement of outward extension.

The guide rail seat 42 is movably connected with the screw rod pair 40 to form a connection base for moving a patient structure with the follow-up moving bracket 5, the movable wheel carrier 6, the conveyor belt device 7 and the like, so as to meet the basic requirements of transferring patients without changing the transferring sickbed, and in order to ensure safety, the normally closed spring claw 44 is connected with an electromagnetic relay switch, can be popped out in an emergency, hooks the nearest bayonet 45, realizes the fixation of the whole structure, and avoids the further deterioration of the unstable condition, wherein, referring to fig. 4, the arrow direction is the moving direction schematic of the claw structure, the spring claw 44 is similar to the elastic clamping structure in the existing structure, the difference is that the spring claw 44 is in an open state, and the two ends of the clamping are connected and maintained in a normally closed electrified mode through an electromagnet to realize the magnetic connection or other locking devices, when a situation similar to an abnormal speed movement in a short time occurs, the electromagnetic relay switch is opened, and the spring pawl 44 is released, thereby holding the nearest bayonet 45 and completing the locking.

Referring to fig. 1, 2 and 5, as a preferred embodiment of the present invention, the movable bracket 5 is U-shaped and is fixedly connected to the support 43, the movable bracket 5 is provided with a closed movable groove 50 matched with its own profile, and the wall of the movable groove 50 is uniformly provided with a whole circle of a plurality of positioning notches 51 arranged along the length direction of the movable groove 50.

In the present embodiment, in combination with the bed frame 1 and the previous embodiment, the movable frame 5 is preferably arranged to meet the length of the bed, so as to facilitate the transfer of the patient, and also to meet the requirement that only the movable frame is arranged at the end of the bed head to avoid forming too much blocking to affect the operation of the patient transferred from the operating table to the transfer bed, and the U-shaped structure of the movable frame 5 is to facilitate the formation of the corresponding movable groove 50 for moving the movable wheel frame 6, especially for providing a necessary driving environment for the movement of the movable wheel frame from the center to the two sides, and meanwhile, in order to meet the positioning requirement, a whole circle of a plurality of positioning notches 51 arranged along the length direction of the movable groove 50 should be provided, so as to facilitate the positioning of the movable wheel frame 6 at any time therein.

Referring to fig. 1, 2, 6, 7 and 8, as a preferred embodiment of the present invention, the movable wheel frame 6 includes a plurality of main shafts 60 connected between different movable brackets 5, a wheel frame 61 connected between different main shafts 60, driving parts 62 provided at both ends of the main shafts 60, wheel frames 63 hinged to both ends of the main shafts 60 and having a "0" shape, olecranon gears 64 provided at both ends of the wheel frames 63 in a length direction and engaged with the positioning notches 51 in a pair of mutually opposite directions, a transmission member 65 connected between the driving parts 62 and the olecranon gears 64, and a driving motor 66 driving the main shafts 60 and fixed on the wheel frame 61, wherein the olecranon gears 64 and the wheel frames 63 are hinged by a ratchet mechanism 67, and a self-locking direction of the ratchet mechanism 67 coincides with a tooth tilting direction of the olecranon gears 64.

In the present embodiment, in combination with the bed frame 1 and the previous embodiment, the movable wheel frame 6 is used as a core structure for realizing the two functions of driving the belt conveyor 7 itself and passive displacement of the belt conveyor 7, and is equivalent to a "movable mounting platform", so that the movable wheel frame 6 itself is provided with a wheel frame 63 for mounting the belt conveyor 7, the wheel frame 63 is connected to the main shaft 60, and is also a frame connected to a olecranon gear 64 for displacement, wherein the transmission member 65 can be regarded as a gear transmission pair or any transmission structure capable of accurately transmitting torque, so as to meet the assembly requirement, and the shaft frame 61 is used as a fixed position of the power source driving motor 66, in order to meet the requirement that the movable wheel frame 6 moves along the moving groove 50 of the moving bracket 5 and deforms, the shaft frames 61 between different main shafts 60 are hinged to each other, and a ratchet mechanism 67 is used, it can be realized that if and only if the olecranon gear 64 needs to move towards the moving direction, it will be driven by the driving part 62, otherwise it will be idle, so as to satisfy the moving and positioning requirements, and when the movable wheel frame 6 moves along the U-shaped moving groove 50 of the moving bracket 5, it will also deform along with the U-shaped moving groove 50, so as to realize the transformation from the bed board to the baffle, so that the patient falls from the bed board to the sickbed, and this technical content will be further explained in the following embodiment of the ratchet mechanism 67.

Referring to fig. 7 and 8, as a preferred embodiment of the present invention, the structure of the ratchet mechanism 67 is consistent with that of a ratchet mechanism of a seat belt of an automobile, and includes a ratchet 670 and a jaw structure 671 engaged with the ratchet 670, where the ratchet 670 is hinged to the wheel frame 63, the jaw structure 671 is fixedly connected to the olecranon gear 64, the jaw structure 671 is sleeved outside the ratchet 670 and hinged to the wheel frame 63, and the ratchet 670 is in transmission connection with the transmission member 65.

In this embodiment, the ratchet mechanism 67 in the previous embodiment is further defined, and the structure can be configured according to the existing ratchet mechanism of the seat belt of the automobile, wherein the structure is divided into a claw structure 671 equivalent to a stator and a ratchet gear 670 equivalent to a rotor, in order to match the structure of unidirectional rotation and reverse locking of the olecranon gear 64 and the requirement of integral installation and connection, the claw structure 671 needs to be hinged with the wheel frame 63 on the basis of the fixed connection with the olecranon gear 64, and the ratchet gear 670 is directly connected with the driving part 62 through the transmission member 65 to receive the power from the driving motor 66, so that when the driving direction is consistent with the self-locking direction of the ratchet gear 670, the torque is transmitted to the olecranon gear 64 connected therewith, thereby the movable bracket 6 can move along the corresponding direction, and when the main shaft 60 rotates reversely, the ratchet wheel 670 slips, the olecranon gear 64 connected with the ratchet wheel 670 cannot rotate, the olecranon gear 64 triggered by the self-locking of the ratchet wheel 670 at the other end rotates, and the moving bracket 6 moves reversely, so that after the main shaft 60 stops rotating, the olecranon gear 64 is fixed at the position and is kept still no matter where the main shaft 60 and the ratchet mechanism 67 are locked, and the braking effect and the reliability of the supporting force are ensured. The driving part 62 may be regarded as a driving gear provided at both ends of the main shaft 60 or other structure capable of transmitting power torque.

Referring to fig. 1 and 6, as a preferred embodiment of the present invention, the conveyor belt device 7 includes a pulley shaft 70 movably connected to the wheel frame 63, and a pulley motor 71 driving the pulley shaft 70 and fixedly connected to the wheel frame 63, an end of the pulley shaft 70 is connected to a metal pulley belt 72 formed by hinging a plurality of metal sheets, the metal pulley belt 72 is covered with a heat insulation layer on a surface thereof, and the movable insertion points 8 are arranged in groups in a width direction of the metal pulley belt 72 along a traveling direction of the metal pulley belt 72.

In order to meet the basic requirements of support and transmission belts, in the invention, the transmission belt device 7 in the embodiment is preferably a transmission belt similar to a metal plate of a sushi shop or a tank-shaped transmission belt, and a plurality of rigid metal sheets are hinged to form a transmission belt structure, so that the body of a patient can be supported in a static or moving state, and the deformation requirement of the movable wheel carrier 6 can also be met, so that the patient can smoothly move from a patient transferring sickbed to a lower sickbed along with the displacement of the transmission belt device 7, and as the transmission belt device is adapted to different patient body types, a plurality of groups of movable insertion points 8 need to be arranged, and the position of the limb positioning insertion plate 9 can be conveniently adjusted by medical staff.

Referring to fig. 1, 2, 9 and 10, as a preferred embodiment of the present invention, a brake link 11 perpendicular to the tangential direction of the conveying surface of the conveyor belt device 7 is connected to an end of the movable insertion point 8, the brake link 11 is separately connected to a brake part 10 through a planar link transmission member 12, the brake part 10 is a brake switch, and the ratio of the moment arm of the brake link 11 to the moment arm from the root of the limb positioning insertion plate 9 to the center of the curved arc surface of the outer contour is not less than 1: 5.

The present embodiment is further limited based on the foregoing embodiment, wherein the movable insertion point 8 can be disposed with reference to the existing ordinary plug and socket structure, and after passing through the metal belt 72, the movable insertion point is movably connected to other structures disposed on the reverse side of the metal belt 72, the planar link transmission member 12 can be any planar link mechanism satisfying the space turning or other installation requirements and satisfying the structural strength, the braking portion 10 is electrically connected to the motor structure of the power, the motor is braked by the circuit, and in order to save the braking force, when the limb of the patient is attached to the limb positioning insertion board 9, the force acting on the structure as a lever is equivalent to the force acting on the structure, so that the limb of the patient needs to become a labor-saving lever, considering that the patient is only twitched or in other emergency situations, the medical staff drives the structure to brake, preferably, the moment arm ratio is not less than 1:5, the condition that the structure is touched by mistake due to the common limb movement of the patient is avoided, the abnormal braking condition is avoided, the fault tolerance rate of the system operation is improved, in addition, particularly, the braking part 10 is arranged on the shaft bracket 61, and the illustration is omitted.

Referring to fig. 10, an arrow in the figure is a schematic diagram of a direction of an acting force of the limb positioning insertion plate 9 connected to the movable insertion point 9, as a preferred embodiment of the present invention, the limb positioning insertion plate 9 is connected to a plug 91 matched with the movable insertion point 9, the plug 91 is provided with a magnet, the movable insertion points 8 are connected in series through a closed-loop circuit, and are separately connected to a magnetic switch, and the magnetic switch is connected to a power source circuit of the conveyor belt device 7.

In this embodiment, the limb positioning insertion board 9 is magnetically connected to the movable insertion point 8 via the plug 91, and when the limb positioning insertion board 9 is inserted into the movable insertion point 8, the magnetic switch is powered on, so as to meet the condition that the device senses the working state, and the device can perform the proper activity, and meanwhile, when a patient has a convulsion or other possible emergency, the medical staff can trigger the magnetic switch or drive the brake link 11 via the emergency removal of any one limb positioning insertion board 9 or pulling the structure, and start the brake part 10, so as to stop the device, so that the state of the patient can be maintained by the stopped limb positioning insertion board 9, thereby avoiding the secondary injury of the patient and facilitating the medical staff to perform the corresponding nursing operation, and the magnetic switch is a structure arranged on the shaft bracket 61, the basic requirements of mechanical assembly are met on the basis of meeting the requirements of connection and contact, and the movable plug-in point 8 is preferably fixed below the movable plug-in point.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A transfer sickbed comprises a bedstead, wherein the bedstead is provided with bed legs for moving positions, and is characterized in that the bedstead is detachably connected with a crawler-type motor-driven bed board, the crawler-type motor-driven bed board comprises a driving bottom board detachably connected with the bedstead, at least one pair of moving guide rails symmetrically fixed on the driving bottom board along the length direction of the bedstead, a moving support arranged on the moving guide rails in a matching way in a movable connection manner, at least one pair of movable wheel carriers arranged on the moving support and capable of synchronously switching between a horizontal movement state and a vertical movement state, and a conveyor belt device erected on the movable wheel carriers and moving along with the movable wheel carriers and capable of automatically moving, wherein a plurality of movable insertion points are uniformly arranged on the conveyor belt device along the movement direction of the movable insertion points, and the movable insertion points are matched with limb positioning insertion plates capable of being movably connected with the movable insertion points, the limb positioning insertion plate is provided with at least one cambered surface which is adaptive to the bending of the outer contour of a human limb, and the movable insertion points are connected with braking parts connected with the conveyor belt device.

2. The transfer hospital bed of claim 1, wherein the driving bottom plate comprises a movable claw with two hinged arms and a mounting socket for inserting a strip-shaped positioning element, the movable claw is arranged at the edge or the side of the bottom surface of the driving bottom plate and is matched with the bed frame, the mounting socket is adjacent to the movable claw, the bottom surface area of the driving bottom plate is provided with a power supply device mounting position, and a folding leg folded at the side of the driving bottom plate is in circuit connection with the power supply device mounting position and used for stabilizing the bed body.

3. The transfer hospital bed according to claim 1, wherein the movable guide rail comprises a plurality of screw pairs for displacement fixed on the top surface of the driving bottom plate, a guide rail seat movably connected with the screw pairs through a screw moving mechanism, and a support fixedly connected to the guide rail seat, wherein two ends of the guide rail are provided with electromagnetic relay switches for connecting normally closed spring jaws, and two sides of the screw pairs are provided with bayonets corresponding to the spring jaws.

4. The transfer hospital bed according to claim 3, wherein the movable support is U-shaped and is fixedly connected to the support, the movable support is provided with a closed movable groove matching with its profile, and the wall of the movable groove is uniformly provided with a whole circle of a plurality of positioning notches arranged along the length direction of the movable groove.

5. The transfer hospital bed according to claim 4, wherein the movable wheel frame comprises a plurality of main shafts connected between different movable supports, a shaft frame connected between different main shafts, driving parts arranged at two ends of the main shafts, a wheel frame hinged at two ends of the main shafts and in a shape of "0", a pair of olecranon gears arranged at two ends of the wheel frame in the length direction and matching with the positioning notches in opposite directions, a transmission part connected between the driving parts and the olecranon gears, and a driving motor driving the main shafts and fixed on the shaft frame, wherein the olecranon gears are hinged with the wheel frame through a ratchet mechanism, and the self-locking direction of the ratchet mechanism is consistent with the inclination direction of the gear teeth of the olecranon gears.

6. The transfer hospital bed of claim 5, wherein the ratchet mechanism is identical in structure to a ratchet mechanism of a car seat belt and comprises a ratchet wheel and a pawl structure engaged with the ratchet wheel, wherein the ratchet wheel is hinged to the wheel frame, the pawl structure is fixedly connected with the olecranon gear, the pawl structure is sleeved outside the ratchet wheel and hinged to the wheel frame, and the ratchet wheel is in transmission connection with the transmission member.

7. The transfer hospital bed according to any one of claims 5 or 6, wherein the conveyor belt device comprises a pulley shaft movably connected with the wheel carrier and a pulley motor driving the pulley shaft and fixedly connected with the wheel carrier, the end of the pulley shaft is connected with a metal pulley belt formed by hinging a plurality of metal sheets in a head-to-tail mode through a pulley, the surface of the metal pulley belt is wrapped with a heat insulation layer, and the movable insertion points are provided with a plurality of groups in the width direction of the metal pulley belt along the advancing direction of the metal pulley belt.

8. The transfer hospital bed according to claim 7, wherein the end of the movable insertion point is connected with a brake connecting rod perpendicular to the tangential direction of the transmission surface of the conveyor belt device, the brake connecting rod is independently connected with a brake part through a planar connecting rod transmission part, the brake part is a brake switch, and the ratio of the force arm of the brake connecting rod to the force arm from the root of the limb positioning insertion plate to the center of the curved cambered surface of the outer contour is not less than 1: 5.

9. The transfer hospital bed according to claim 8, wherein the limb positioning insertion plate is connected with a plug which is matched with the movable insertion points, the plug is provided with a magnet, the movable insertion points are connected in series through a closed loop circuit and are separately connected with a magnetic suction switch, and the magnetic suction switch is connected with a power source circuit of the conveyor belt device.