CN114288106B

CN114288106B - Transfer sickbed

Info

Publication number: CN114288106B
Application number: CN202111599777.0A
Authority: CN
Inventors: 刘仁武
Original assignee: Dalian central hospital
Current assignee: Dalian central hospital
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2023-08-11
Anticipated expiration: 2041-12-24
Also published as: CN114288106A

Abstract

The invention discloses a transfer sickbed, which comprises a bedstead, wherein the bedstead is detachably connected with a crawler-type motor-driven bed board, the crawler-type motor-driven bed board comprises a driving bottom plate connected with the bedstead, at least one pair of movable guide rails symmetrically fixed on the driving bottom plate along the two ends of the length direction of the bedstead, a movable bracket arranged on the movable guide rails, at least one pair of movable wheel frames arranged on the movable bracket, and a conveyor belt device erected on the movable wheel frames. The invention can stably transfer the patient from the operating room to the bed without complex operation, avoids the secondary manual labor of medical staff, avoids the change of ward layout, ensures that the transfer of the patient is more efficient, and brings obvious help to improve the operation efficiency of the medical system of the hospital.

Description

Transfer sickbed

Technical Field

The invention belongs to the technical field of general surgery, and particularly relates to a transfer sickbed for patients with inconvenient actions in general surgery.

Background

After the patient is operated, the patient needs to be transferred to a ward from an operating room, generally, the patient is directly transferred to a movable sickbed from the operating room, and then the patient is directly used as a medical bed of the patient after being pushed to the ward by medical staff, in the process, the patient is transferred only by the whole-course cooperation of the medical staff, so that inconvenience is caused: firstly, the patient needs to be moved from an operating table to a sickbed by cooperation of multiple persons to finish movement of the body, which is troublesome; secondly, the sickbed needs to be moved to an operating room from the ward in advance, and the layout of the ward needs to be changed in the process, and a certain manpower is also required to be consumed. Thus, it creates an unnecessary impediment to the hospital's improvement in the operating efficiency of the medical system.

If a sickbed specially used for transferring patients exists, the patients can be more comfortably transferred into the ward without additional movement of the sickbed in a mode of least labor and most suitable for the patients after the operation is finished, and the needs of various different patients can be met, the trouble caused by the inconvenience to the 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 technology, the invention provides a transfer sickbed, which solves the technical problems and meets the actual demands, and the specific technical scheme is as follows:

the utility model provides a shift sick bed, includes the bedstead, the bedstead is equipped with the footpost that is used for the shift position, detachably is connected with crawler-type motor bed board on the bedstead, crawler-type motor bed board include with the detachably connection's drive bottom plate, follow the both ends symmetry of bedstead length direction is fixed in at least a pair of movable guide rail on the drive bottom plate, with the cooperation of swing joint form setting up the movable support on the movable guide rail, locate the movable support and can be synchronous at the horizontal movement and the at least a pair of movable wheel carrier that switches among the vertical movement state, and erect on the movable wheel carrier along with the motion and can independently move the conveyer belt device constitutes, wherein, evenly be equipped with a plurality of synchronous movable insertion point that moves along its direction of motion on the conveyer belt device, movable insertion point matches and can rather than swing joint's limb location picture peg, limb location picture peg is equipped with at least one and adapts to the outer contour bending of human limbs, movable insertion point all is connected with the brake portion that links to with the conveyer belt device.

As a further technical scheme of the invention, the driving bottom plate comprises a movable claw provided with hinged double arms and arranged on the edge or the side surface of the bottom surface and matched with the bedstead, and an installation jack capable of being matched with the insertion of the strip-shaped positioning piece, wherein the movable claw is arranged adjacent to the installation jack, the bottom surface area of the driving bottom plate is provided with a power supply device installation position, and a folding support leg which is folded on the side surface of the driving bottom plate and used for stabilizing the bedstead is connected with the power supply device installation position through a circuit.

As a further technical scheme of the invention, the movable guide rail comprises a plurality of screw pairs for displacement, 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 electromagnetic relay switches are arranged at two ends of the guide rail and connected with normally closed spring clamping claws, and bayonets corresponding to the spring clamping claws are arranged at two sides of the screw pairs.

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

As a further technical scheme of the invention, the movable wheel frame comprises a plurality of main shafts connected between different movable brackets, a shaft frame connected between different main shafts, driving parts arranged at two ends of the main shafts, a 0-shaped wheel frame hinged at two ends of the main shafts, a pair of mutually opposite olecranon gears arranged at two ends of the wheel frame in the length direction and matched with the positioning notch, a transmission piece connected between the driving parts and the olecranon gears, and a driving motor for 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.

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

As a further technical scheme of the invention, the conveyor belt device comprises a belt wheel shaft movably connected with the wheel frame and a belt wheel motor for driving the belt wheel shaft and fixedly connected with the wheel frame, wherein the end part of the belt wheel shaft is connected with a metal belt formed by hinging a plurality of metal sheets at the head and the tail 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 along the advancing direction of the metal belt and the width 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 which is 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 part of the limb positioning insertion plate to the center of the curved cambered surface of the outer contour is not less than 1:5.

As a further technical scheme of the invention, the limb positioning plugboard 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 attraction switch, and the magnetic attraction 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, when a 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 without moving the sickbed in advance, the secondary physical labor of the medical staff is avoided, the change of ward layout is avoided, the transfer of the patient is more efficient, the discomfort caused when the patient is transferred is reduced, the recovery after the operation of the patient is facilitated, and the operation efficiency of a medical system of a hospital is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the transfer bed of the present invention with its end face oriented.

Fig. 2 is a schematic diagram of the implementation effect of the transfer sickbed of the invention.

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

Fig. 4 is a schematic view of an embodiment of a spring catch.

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

Fig. 6 is a schematic diagram of the cooperation structure of the movable wheel frame and the driving belt device.

Fig. 7 is an enlarged schematic view of a partial structure of the opposite side of the movable wheel frame.

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

Fig. 9 is a schematic diagram of an arrangement of movable insertion points on a metal wheel belt.

Fig. 10 is an enlarged view of a portion of the mating structure of the movable plug.

Wherein: the device comprises a bed frame 1, bed legs 2, a driving bottom plate 3, movable claws 30, mounting jacks 31, a power supply device mounting position 32, folding support legs 33, a movable guide rail 4, a screw pair 40, a screw moving mechanism 41, a guide rail seat 42, a support 43, a spring claw 44, a bayonet 45, a movable support 5, a movable groove 50, a positioning notch 51, a movable wheel frame 6, a main shaft 60, a shaft frame 61, a driving part 62, a wheel frame 63, a olecranon gear 64, a driving part 65, a driving motor 66, a ratchet mechanism 67, a ratchet 670, a claw structure 671, a conveyor belt device 7, a belt wheel shaft 70, a belt wheel motor 71, a metal belt 72, a movable insertion point 8 and a limb positioning insertion plate 9, wherein the limb positioning insertion plate 9, an outer contour bending cambered surface 90, a plug 91, a braking part 10, a braking connecting rod 11 and a plane connecting rod driving part 12.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings and examples, but the embodiments of the present invention are not limited to the following examples, and the present invention relates to the relevant essential parts in the art, and should be regarded as known and understood by those skilled in the art.

Referring to all the drawings, a transfer sickbed comprises a bedstead 1, wherein the bedstead 1 is provided with a bed leg 2 for moving positions, a crawler-type motorized bed board is detachably connected to the bedstead 1, the crawler-type motorized bed board comprises a driving bottom board 3 detachably connected with the bedstead, at least one pair of moving guide rails 4 symmetrically fixed on the driving bottom board 3 along the two ends of the length direction of the bedstead 1, a moving bracket 5 which is arranged on the moving guide rails 4 in a movable connection mode in a matching manner, at least one pair of movable wheel frames 6 which are arranged on the moving bracket 5 and can synchronously switch between a horizontal movement state and a vertical movement state, and a conveyor belt device 7 which is arranged on the movable wheel frames 6 and can independently move along with the movable wheel frames 6, a plurality of movable insertion points 8 which can synchronously move are uniformly arranged on the conveyor belt device 7 along the movement direction of the conveyor belt device, the movable insertion points 8 are matched with limb positioning insertion boards 9 which can be movably connected with the conveyor belt device, the limb positioning insertion points 9 are provided with outer contour bending cambered surfaces 90 which are suitable for limbs of a human body, and the movable insertion points 8 are connected with a brake part 10 which is connected with the conveyor belt device.

Referring to fig. 1 and 2, the arrow in fig. 2 is the movement direction of the whole structure, in the initial state, the bed board structure of the transfer sickbed is not different from the normal transfer sickbed, when the patient is transported to the sickroom of the patient, the driving bottom board 3 can be lifted to adjust the height of the conveyer belt device 7 on which the patient lies to be suitable for the sickbed, or the height which is flush with the sickbed by default, wherein the lifting structure can be set by referring to the lifting platform structure in the prior art, that is, the lifting structure is based on the position of the connecting bedstead 1, an integral driving bottom board 3 is formed by a lifting bracket and the like on the platform above the connecting side, then the moving bracket 5 on the moving guide rail 4 is driven to move the patient to the sickbed, the conveyer belt device 7 and the movable wheel frame 6 are mutually cooperated, and simultaneously move upwards from two sides, that is, the operation of the conveyer belt device 7 and the displacement of the conveyer belt device are synchronously carried out along with the action of the movable wheel frame 6, therefore, the position of the conveyer belt device 7 on one side and the patient can be kept in a relatively static state, that the patient is slowly pulled away from the position of the lifting platform structure in the prior art, that the patient is not suitable for the patient is blocked from the position, and the patient is not transferred from the movable bottom board 4, and the patient is completely moved to the limb device is moved, and the patient is completely, and the patient is prevented from being moved to the rest by the side by the movable bottom board 5, and the patient is moved along the arm 9, and the movement is completely, and the patient is completely and when the patient is moved to the movement is well along the movement side and is completely and the movement side is moved. The device can reduce the uncomfortable feeling of patients when transferring sickbeds, and reduce the difficulty of medical staff when transferring patients.

In the present invention, referring to fig. 1, it should be noted that the bed frame 1, together with the legs 2 thereof, may be configured with reference to the structure of the existing transfer bed, and thus, the movement thereof may be implemented by adding universal wheels or power wheels to the legs 2. The limb positioning plugboard 9 can be inserted through a proper movable insertion point 8 selected by medical staff after a patient lies on a bed board formed by the conveyor belt device 7, so that the limb of the patient cannot easily change, the limb of the patient can be better matched by utilizing the outer contour curved cambered surface 90, the limb of the patient is 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 figure is omitted.

Referring to fig. 1, as a preferred embodiment of the present invention, the driving base 3 includes a movable jaw 30 having a hinge double arm and provided at a bottom edge or side thereof to be engaged with the frame 1, and a mounting hole 31 into which a bar-shaped positioning member is inserted, the movable jaw being provided adjacent to the mounting hole 30, and a power supply device mounting location 32 is provided at a bottom area of the driving base 3, and a folding leg 33 folded at a side of the driving base 3 to stabilize the frame 1 is electrically connected to the power supply device mounting location 32.

In combination with the bed frame 1, the driving base plate 3 in this embodiment is connected with the mounting insertion hole 31 by using the movable claw 30, where the movable claw 30 may be understood as a clamping structure similar to an elastic clip, and the mounting insertion hole 31 may be understood as a positioning hole provided on the driving base plate 3, and the bed frame 1 also has a positioning hole adapted to the mounting insertion hole 31, and the positioning holes are positioned by communicating with each other by a strip-shaped positioning member, and the strip-shaped positioning member may be understood as a positioning bolt or a positioning screw pair, and in addition, the mounting insertion hole 31 may also be a connecting hole provided on a buckle structure and a buckling structure thereof, and the strip-shaped positioning member passes through the buckling structure to form a closed loop to complete fixation. The power supply installation position 32 is understood as an installation position of an ac power supply or an installation position of a fixed battery, and is generally preferred to be an installation position of a fixed battery in order to meet the needs of a patient to be transferred, while the folding leg 33 is similar to a stabilizing leg structure of a crane truck in the prior art, so that when the patient is transferred, the whole equipment keeps maintaining the whole balance after the center of gravity is shifted, and a mechanism for ensuring safety is provided.

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

In combination with the bed frame 1 and the previous embodiment, in this embodiment, the moving rail 4 is mounted on the driving base 3 on the top surface of the driving base 3 in a manner of meeting the requirement of structural strength, preferably, the moving rail 4 may be provided with multiple groups to meet the requirement of connection strength when the center of gravity is shifted, so that a plurality of screw pairs 40 for completing the displacement action should be provided, specifically at least more than 2, preferably more than 4, and at least 2 or more are provided on the same screw pair 40 by using the screw moving mechanism 41, so as to meet the requirement of extending outwards.

The guide rail seat 42 is movably connected with the screw pair 40 to form a connection foundation for moving a patient structure with a subsequent movable bracket 5, a movable wheel frame 6, a conveyor belt device 7 and the like, so as to meet the basic requirement of transferring patients without changing a transfer sickbed, and in order to ensure safety, a normally closed spring claw 44 is connected by an electromagnetic relay switch and can be popped up in an emergency to hook a nearest bayonet 45, so as to realize the fixation of the whole structure and avoid the further deterioration of an unstable condition, wherein, as shown in fig. 4, the arrow direction is the movement direction of the claw structure, the spring claw 44 is similar to the elastic clamping structure in the prior structure, and the difference is that the spring claw 44 is in an opened state, and the two ends of the clamping are required to be kept in a magnetic connection or other normally closed locking device connection in an electrified mode, and the electromagnetic relay switch is opened, so that the spring claw 44 is released to clamp the nearest bayonet 45 to complete the locking similarly to the case of abnormal speed movement in a short time.

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

In combination with the bed frame 1 and the previous embodiment, in this embodiment, the setting of the moving support 5 is suitable for meeting the length of the bed, so as to facilitate transferring the patient, and meanwhile, the setting of the moving support 5 is also required to be only required to be set at the position of the tail of the bed head to avoid forming excessive blocking to affect the operation of transferring the patient from the operating table to the transferring bed, while the U-shaped structure of the moving support 5 is used for conveniently forming the moving slot 50 with a corresponding shape so as to facilitate the moving of the movable wheel frame 6, especially the moving of letting the moving wheel frame from the center to two sides provides necessary driving environment, and meanwhile, in order to meet the positioning requirement, a whole circle of a plurality of positioning slots 51 arranged along the length direction of the moving slot 50 should be provided, so as to facilitate positioning the movable wheel frame 6 therein at any time.

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 shaft frame 61 connected between different main shafts 60, driving parts 62 provided at both ends of the main shafts 60, a wheel frame 63 hinged at both ends of the main shafts 60, a pair of mutually opposite olecranon gears 64 provided at both ends of the wheel frame 63 in a longitudinal direction and engaged with the positioning notch fittings 51, 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 to the shaft frame 61, wherein the olecranon gears 64 and the wheel frame 63 are hinged by a ratchet mechanism 67, and a self-locking direction of the ratchet mechanism 67 coincides with a gear tooth inclination direction of the olecranon gears 64.

In combination with the bed frame 1 and the previous embodiment, in this embodiment, the movable wheel frame 6 is a core structure for realizing two functions of driving the conveyor belt device 7 and passively displacing the conveyor belt device 7, which is equivalent to a "movable mounting platform", therefore, the movable wheel frame 6 is provided with a wheel frame 63 for mounting the conveyor belt device 7, and the wheel frame 63 is connected with the main shaft 60 and is also a frame connected with 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 precisely transmitting torque, so as to meet the assembly requirement, the wheel frame 61 is used as a fixed position of the driving motor 66 for driving the power source, so that in order to meet the requirement of the deformation of the movable wheel frame 6 along the moving groove 50 of the moving bracket 5, the wheel frames 61 between different main shafts 60 are mutually hinged, and by using the ratchet mechanism 67, it can be realized that if and only if the olecranon gear 64 needs to move towards the moving direction, the driving part 62 is driven, otherwise idle, so as to meet the requirement of movement and positioning, and the movable wheel frame 6 can also change from the moving part of the U-shaped bracket 50 to the following type of the patient to the following movement of the patient, and the following the movement of the patient can be realized by further translating from the moving part to the moving part of the moving table plate 50 to the moving part 50.

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

This embodiment is further defined as the ratchet mechanism 67 in the previous embodiment, and the structure may be configured according to the existing car seat belt ratchet mechanism, where the structure is divided into a claw structure 671 equivalent to a stator and a ratchet 670 equivalent to a rotor, in order to match the unidirectional rotation reverse locking structure of the olecranon gear 64 and the integral installation connection requirement, the claw structure 671 needs to be hinged to the wheel frame 63 on the basis of being fixedly connected with the olecranon gear 64, while the ratchet 670 is directly connected with the driving part 62 through a transmission member 65, and receives the power from the driving motor 66, so that when the driving direction is consistent with the self-locking direction of the ratchet 670, the torque is transmitted to the olecranon gear 64 connected with the claw structure, so that the moving bracket 6 can move along the corresponding direction, and when the spindle 60 rotates reversely, the olecranon gear 64 connected with the ratchet 670 will not rotate, and the other end triggers the self-locking olecranon gear 64 to rotate, and the moving bracket 6 will move reversely, thus, when the spindle 60 rotates, the two positions of the ratchet 60 can be locked and the two-position of the ratchet mechanism can not be locked due to the braking effect. The driving part 62 may be regarded as a driving gear provided at both ends of the main shaft 60 or another 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 portion of the pulley shaft 70 is connected to a metal belt 72 formed by hinging a plurality of metal sheets end to end through a pulley, a surface of the metal belt 72 is wrapped with a heat insulation layer, and the movable insertion point 8 is provided with a plurality of groups in a width direction of the metal belt 72 along a traveling direction of the metal 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 track, and a plurality of rigid metal plates are hinged to form a track structure, so that the patient can be supported by the transmission belt device in a static or moving state, the deformation requirement of the movable wheel frame 6 can be met, the patient can smoothly move from a transfer sickbed to a sickbed below along with the displacement of the transmission belt device 7, and a plurality of groups of movable insertion points 8 are required to be arranged to adapt to different patient sizes, and the medical staff can conveniently adjust the positions of limb positioning plugboards 9.

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

The present embodiment is further defined based on the foregoing embodiment, wherein the movable insertion point 8 may be set with reference to the existing socket and plug structure that is commonly plugged and pulled out, and after passing through the metal belt 72, the movable insertion point is movably connected with other structures disposed on the opposite side of the metal belt 72, the planar link transmission member 12 may be a planar link mechanism that meets space turning or other installation requirements and meets structural strength, the braking portion 10 is electrically connected with a power motor structure to brake the motor in a circuit manner, and in order to save braking force, when the patient limb is attached to the limb positioning board 9, the force acting on the structure as a lever is equivalent, so that the patient needs to become a labor-saving lever, and in consideration of the fact that the patient only drives the structure to brake in a twitch or other emergency, preferably, the moment arm ratio is not less than 1:5, the occurrence of abnormal braking caused by the fact that the patient common limb moves to mistakenly touch the structure is avoided, and in addition, the braking portion 10 is disposed on the axle frame 61 is particularly pointed out that the braking portion 10 is omitted in the figure.

Referring to fig. 10, the arrow in the drawing is a schematic diagram of the direction of the acting force after the limb positioning board 9 is connected to the movable insertion point 9, as a preferred embodiment of the present invention, the limb positioning board 9 is connected to a plug 91 that is 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 with a magnetic switch, and the magnetic switch is connected to the power source circuit of the conveyor belt device 7.

In this embodiment, the limb positioning plugboard 9 is matched with the movable plugboard 8 through a magnetic connection manner by using the plug 91, after the limb positioning plugboard 9 is inserted into the movable plugboard 8, the magnetic switch is electrified, so that the condition that the equipment senses that the equipment enters a working state is also met, the equipment can perform due activity, meanwhile, when a patient has a tic or other possible emergency, a medical staff can promptly pull out any limb positioning plugboard 9 or pull the structure, the magnetic switch is triggered or the brake connecting rod 11 is driven, the brake part 10 is started, the equipment is stopped emergently, so that the state of the patient is kept by the stopped limb positioning plugboard 9, the secondary injury of the patient is avoided, the medical staff is convenient to implement corresponding nursing operation at the same time, and the magnetic switch is of a structure arranged on the shaft frame 61, so that the connection and contact needs are met, the basic requirement of the mechanical assembly is met, and the medical staff is preferably fixed below the movable plugboard 8.

The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Claims

1. The transfer sickbed comprises a bedstead, wherein the bedstead is provided with a bed leg for moving the position, and is characterized in that the bedstead is detachably connected with a crawler-type motorized bed board, the crawler-type motorized bed board comprises a driving bottom board which is detachably connected with the bedstead, at least one pair of moving guide rails which are symmetrically fixed on the driving bottom board along the two ends of the length direction of the bedstead, a moving bracket which is arranged on the moving guide rails in a movable connection mode in a matching way, at least one pair of movable wheel frames which are arranged on the moving bracket and can synchronously switch between a horizontal movement state and a vertical movement state, and a conveyor belt device which is arranged on the movable wheel frames and can move along with the movable wheel frames and can independently move, a plurality of movable insertion points which can synchronously move are uniformly arranged on the conveyor belt device along the movement direction of the conveyor belt device, limb positioning insertion boards which can be movably connected with the movable insertion points are matched, and the limb positioning insertion boards are provided with at least one outer contour bending cambered surface which is suitable for human limbs, and the movable insertion points are connected with a braking part which is connected with the conveyor belt device;

the movable guide rail comprises a plurality of screw pairs for displacement, 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, electromagnetic relay switches are arranged at two ends of the guide rail and connected with normally closed spring clamping claws, and bayonets corresponding to the spring clamping claws are arranged at two sides of the screw pairs;

the movable support is U-shaped and fixedly connected with the support, a closed movable groove matched with the outline of the movable support is formed in the movable support, and the wall of the movable groove is uniformly provided with a plurality of positioning notches which are arranged along the length direction of the movable groove in a whole circle;

the movable wheel frame comprises a plurality of main shafts connected between different movable brackets, a shaft bracket connected between different main shafts, a driving part arranged at two ends of the main shafts, a wheel frame hinged at two ends of the main shafts and provided with a '0' -shaped wheel frame, a pair of mutually opposite olecranon gears arranged at two ends of the length direction of the wheel frame and matched with the positioning notch, a transmission piece connected between the driving part and the olecranon gears and a driving motor for driving the main shafts and fixed on the shaft bracket, 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.

2. The transfer hospital bed according to claim 1, wherein the driving base plate comprises movable claws provided at the edges or sides of the bottom surface thereof and having hinged double arms and mounting jacks into which the bar-shaped positioning members are inserted, the movable claws are provided adjacent to the mounting jacks, the bottom surface area of the driving base plate is provided with a power supply device mounting position, and folding legs which are folded on the sides of the driving base plate for stabilizing the bed frame are electrically connected with the power supply device mounting position.

3. The transfer hospital bed according to claim 1, wherein the ratchet mechanism is identical to the ratchet mechanism of the car 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.

4. A transfer bed according to any one of claims 1 or 3, wherein the conveyor belt device comprises a belt wheel shaft movably connected with the wheel frame and a belt wheel motor for driving the belt wheel shaft and fixedly connected with the wheel frame, the end part of the belt wheel shaft is connected with a metal belt formed by hinging a plurality of metal sheets end to end through a belt wheel, the surface of the metal belt is wrapped with a heat insulation layer, and the movable insertion points are provided with a plurality of groups along the travelling direction of the metal belt and the width direction of the metal belt.

5. The transfer sickbed according to claim 4, wherein 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 part of the limb positioning insertion plate to the center of the outer contour curved cambered surface is not less than 1:5.

6. The transfer hospital bed of claim 5, wherein the limb positioning insert 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 a magnetic attraction switch is independently connected, and the magnetic attraction switch is connected with a power source circuit of the conveyor belt device.