CN114652548A

CN114652548A - Transfer device for changing human body posture slightly

Info

Publication number: CN114652548A
Application number: CN202210206021.3A
Authority: CN
Inventors: 赵延治; 马杰明; 岳峰; 刘富民
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-06-24
Anticipated expiration: 2042-02-28
Also published as: CN114652548B

Abstract

The invention provides a transfer device with a slightly changed human body posture, which comprises an omnidirectional moving chassis, an upper body holding mechanism, a lifting mechanism, a riding mechanism and a knee propping mechanism, wherein the omnidirectional moving chassis is arranged on the upper body holding mechanism; the upper body supporting and embracing mechanism is arranged above the omnidirectional movement chassis, the riding mechanism is arranged below the upper body supporting and embracing mechanism, the lifting mechanism is connected with the upper body supporting and embracing mechanism and can drive the upper body supporting and embracing mechanism to move up and down, and the knee propping mechanism and the riding mechanism are arranged oppositely. It can guarantee that human gesture only takes place less change and just can accomplish human transportation at the aversion in-process, can will hold in the palm the atress distribution of embracing the in-process to armpit and both feet department, and the aversion in-process distributes human gravity to armpit and buttockss under, reduces the influence of aversion process to the human body to the at utmost, can realize old person or patient in the switching between the multi-scene such as closestool, wheelchair, bed, extensively be used for places such as family, asylum for the aged and medical institution.

Description

Transfer device for changing human body posture slightly

Technical Field

The invention relates to the field of auxiliary appliances, in particular to a transfer device for slightly changing human body postures.

Background

With the aging problem becoming more and more obvious, the demand for transfer products of rehabilitation and old-age assistive devices is increasing, and products of rehabilitation and old-age assistive devices in the market are emerging, for example, the functions of the rehabilitation and old-age assistive products include assisting getting-up, assisting in toileting, assisting in bathing and the like. The body function of the old people is continuously degraded along with the increase of the age, and the old people lack of the exercise ability, so that the transfer of the old people in various scenes such as wheelchairs, beds, toilets and the like also becomes a big problem. Carry old person not only to the porter be a burden but also can cause unnecessary damage to old person's health through artifical transfer, also can have certain influence to old person's dignity.

Patent publication No. CN109571511A discloses an auxiliary standing and shifting robot, which comprises a robot base, a standing seat, a seat cushion, a top knee, a hand holding frame and a push handle, wherein: the vertical seat is arranged on the base, and the seat cushion, the top knee, the hand clasping frame and the push handle are arranged on the vertical seat; the first opening and closing caster frame and the second opening and closing caster frame are rotatably connected to two sides of the rear part of the base, and rear wheels are respectively arranged on the first opening and closing caster frame and the second opening and closing caster frame; front wheels are respectively arranged on two sides of the front part of the base. But it has certain disadvantages mainly represented by: the armpits on the left side and the right side of a human body need to bear all supporting and holding force in the supporting and holding process, other parts of the upper limbs are not stressed, the hands do not have grasping positions, the chest and the back are not protected, the waist is not supported, and accidents are easily caused in the holding process.

Patent publication No. CN113041106A discloses a walking and displacement aiding robot device, which comprises an armrest structure, a lifting structure, a standing push rod, a chassis structure and pedals; the width of the handrail structure can be adjusted and arranged on the lifting structure; the lifting structure is hinged on the chassis structure in a height-adjustable manner, the standing push rod is supported between the chassis structure and the lifting structure in a length-adjustable manner, and the pedal is detachably arranged on the chassis structure. But it has certain disadvantages mainly represented by: the majority of holding force is born by the holding force of the holding handle, the waist and the back of the user have no supporting part, the hip is not supported in the shifting process, the leg always keeps in a stressed state, and the user can easily lean backwards.

Therefore, there is an urgent need to develop a transfer assistant tool which can better solve the problems of difficult displacement, poor upper limb supporting force, uncomfortable riding and the like in the prior art.

Disclosure of Invention

In order to solve the above-mentioned shortcomings of the prior art, the present invention provides a transfer device for slightly changing human body posture, which has a simple structure and low cost, and can solve the problems of great change of posture, difficulty in shifting, discomfort in riding, etc. of the existing transfer robot. The transfer device capable of changing the human body posture slightly can ensure that the transfer of the human body can be completed under the condition that the human body posture is changed slightly in the process of shifting, the stress in the process of holding can be distributed to the armpits and feet, the gravity of the human body is distributed to the armpits and the buttocks in the process of shifting, and the comfort level in the process of shifting can be ensured.

The invention provides a transfer device with a micro-variable human body posture, which comprises an omnidirectional moving chassis, an upper body holding mechanism, a lifting mechanism, a riding mechanism and a knee propping mechanism, wherein the omnidirectional moving chassis is arranged on the upper body holding mechanism; the upper body supporting and embracing mechanism is arranged above the omnidirectional moving chassis, the riding mechanism is arranged below the upper body supporting and embracing mechanism, the lifting mechanism is connected with the upper body supporting and embracing mechanism and can drive the upper body supporting and embracing mechanism to move up and down, and the knee propping mechanism and the riding mechanism are arranged oppositely;

the omnidirectional moving chassis comprises a chassis connecting plate, a first frame and a second frame, wherein the first frame and the second frame are symmetrically arranged and are respectively connected with the chassis connecting plate, and moving devices are respectively arranged at the bottoms of the first frame and the second frame;

the upper body supporting and embracing mechanism comprises a supporting and embracing frame connecting pipe, a first supporting and embracing frame, a second supporting and embracing frame, a chest rest, an embracing arm, a back supporting safety belt, a large arm supporting plate, an elbow supporting plate and a grab handle; the first ends of the first holding frame and the second holding frame are respectively connected with one end of the holding frame connecting pipe, the second ends of the first holding frame and the second holding frame are respectively connected with one end of the back supporting safety belt, the length of the back supporting safety belt connected with the first holding frame and the second holding frame can be adjusted according to requirements, the connecting part of the back supporting safety belt and the first holding frame and the second holding frame is provided with a holding arm, a large arm supporting plate, an elbow supporting plate and a grab handle are arranged at the middle position of the first holding frame and the second holding frame, the large arm supporting plate, the elbow supporting plate and the grab handle are fixedly connected with the first holding frame and the second holding frame, and the holding frame connecting pipe, the first holding frame, the second holding frame and the back supporting safety belt form an annular structure, the chest rest is arranged in the middle of the annular structure and is fixedly connected with the first holding frame and the second holding frame by virtue of connecting pipes respectively;

the lifting mechanism comprises a driving rod, a U-shaped guide rod and a pulley block, two ends of the U-shaped guide rod are respectively connected with the first frame and the second frame, the pulley block and the U-shaped guide rod form a moving pair, the driving rod is connected with the pulley block and the U-shaped guide rod by means of a connecting rod, the pulley block on each side is provided with three pulleys which are arranged in an inverted triangle, the axis connecting line of the two pulleys is axially vertical to the U-shaped guide rod, and the other pulley is arranged on the inner side below the driving rod;

the sitting mechanism comprises a sitting plate supporting frame and a sitting plate, the sitting plate and the sitting plate supporting frame can be rotatably connected, the supporting frame is connected with the first frame and the second frame, and arc-shaped bulges and arc-shaped sliding grooves are respectively arranged at the connection positions of the sitting plate and the sitting plate supporting frame;

the knee propping mechanism comprises a first knee backrest and a second knee backrest which are adjacently arranged, the first knee backrest and the second knee backrest respectively comprise a knee guard plate and a connecting piece, the two connecting pieces are respectively connected with the first frame and the second frame, and the two knee guard plates are respectively installed on the connecting pieces and can perform up-down displacement and front-back displacement adjustment on the connecting pieces.

Preferably, the first frame and the second frame both comprise chassis oblique circular pipes and chassis horizontal circular pipes, the upper ends of the two chassis oblique circular pipes are connected through a chassis horizontal connecting pipe, the lower ends of the U-shaped guide rods are inserted into the upper ends of the chassis oblique circular pipes, and the lower portions of the chassis oblique circular pipes are connected with the chassis horizontal circular pipes.

Preferably, the bottom of the chassis horizontal round pipe is connected with a universal wheel by means of a universal wheel connecting frame, and the universal wheel is provided with a brake device.

Preferably, the back support harness is provided with a plurality of harness buckles for adjusting the length.

Preferably, the driving rod is directly connected with the chassis horizontal connecting pipe and the connecting rod through a pin shaft.

Preferably, the connecting piece includes backplate backup pad, front and back regulation tab pin, arc return bend, upper and lower regulation tab pin, upper and lower regulation pole, front and back regulation pole and T venturi tube, the first end of arc return bend with chassis slant circle fixed connection, the second end of arc return bend with upper and lower regulation pole fixed connection, upper and lower regulation pole with front and back regulation pole is fixed to be formed the T venturi tube, front and back regulation pole with backplate backup pad fixed connection, the backplate backup pad with knee backplate bolted connection.

Preferably, the up-down adjusting rod comprises an up-down adjusting female rod and an up-down adjusting male rod, the front-back adjusting rod comprises a front-back adjusting female rod and a front-back adjusting male rod, and the up-down adjusting male rod and the front-back adjusting female rod are fixed together by welding.

Preferably, the up-down adjusting female rod and the front-back adjusting female rod are provided with positioning holes, and the up-down adjusting sub-rod and the front-back adjusting sub-rod are provided with multi-stage adjusting holes.

Preferably, the seat board, the arm, the chest rest and the knee support are all provided with soft materials.

Preferably, the angle of arc spout is 240 degrees, the protruding angle of arc is 60 degrees, and the arc is protruding to realize 180 degrees opens and shuts in the arc spout, and the bedplate rotation axis sets up to the slant.

Preferably, the driving rod is connected with a driving motor, and the driving motor is connected with a superior controller.

Compared with the prior art, the invention has the following beneficial effects:

(1) the transfer device capable of changing the human body posture slightly can ensure that the transfer of the human body can be completed under the condition that the human body posture is changed slightly in the process of shifting, and can distribute the stress to the armpit and the feet in the holding process instead of being concentrated on the upper limbs alone. The human body gravity is distributed to the armpit and the lower part of the hip in the shifting process, and the human body half-sitting standing posture can be transferred, so that the posture change in the shifting process is reduced, meanwhile, the knee bending angle is guaranteed to be a 90-degree comfortable angle in the half-sitting standing state, and the influence of the supporting and holding shifting process on the body of the old is reduced to the maximum extent.

(2) The utility model has the advantages of the overall structure is simple, convenient to use, only need a nursing staff when nursing can, alleviateed nursing staff's work load greatly, it uses the scene very much, can realize old person or patient in the switching between the multi-scene such as closestool, wheelchair, bed, extensively be used for places such as family, asylum for the aged and medical institution, simple structure is fit for promoting, can practice thrift nursing cost and human time cost.

Drawings

FIG. 1 is an isometric view of the overall structure of the present invention in a bracketing state;

FIG. 2 is an isometric view of the chassis moving frame of the present invention;

FIG. 3 is an isometric view of the upper body cradling and embracing mechanism of the present invention;

FIG. 4 is a ride path diagram of the present invention;

FIG. 5 is a front view of the overall structure of the state of the invention;

FIG. 6 is a schematic diagram of the human pose of the transit state of the present invention;

FIG. 7 is a schematic diagram of the posture of the human body during the holding process.

Wherein some of the reference numbers are as follows:

1-omnidirectional moving chassis, 2-upper body supporting and embracing mechanism, 3-lifting mechanism, 4-riding mechanism, 5-knee supporting mechanism, 11-chassis connecting plate, 12-universal wheel bracket, 13-universal wheel, 14-chassis horizontal connecting pipe, 15-chassis inclined round pipe, 16-chassis horizontal round pipe, 21-supporting and embracing frame connecting pipe, 22-chest rest, 23-embracing arm, 24-back supporting safety belt, 25-safety belt buckle, 26-supporting and embracing frame, 27-big arm supporting plate, 28-elbow supporting plate, 29-grab handle, 31-driving rod, 32-U type guide rod, 33-pulley block, 41-seat plate supporting frame, 42-riding seat plate, 43-seat plate rotating pin shaft, 51-front and back adjusting pull ring pin, 52-arc bent pipe, 53-up-down adjusting pull ring pin, 54-up-down adjusting rod, 55-knee guard plate, 56-front-rear adjusting rod and 57-T-shaped pipe.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

As shown in fig. 1 to 5, the present invention provides a transfer device for changing the posture of a human body slightly, which includes an omnidirectional movement chassis 1, an upper body holding mechanism 2, a lifting mechanism 3, a sitting mechanism 4 disposed below the upper body holding mechanism 2, and a knee supporting mechanism 5 disposed above the floor of the chassis. The upper body supporting and embracing mechanism 2 is arranged above the omnidirectional moving chassis 1, the riding mechanism is arranged below the upper body supporting and embracing mechanism 2, the lifting mechanism 3 is connected with the upper body supporting and embracing mechanism 2 and can drive the upper body supporting and embracing mechanism 2 to move up and down, and the knee supporting mechanism 5 is arranged opposite to the riding mechanism 4. It can be with holding in the palm the atress of embracing the in-process and distribute to armpit and both feet department, with human gravity distribution to armpit and buttockss down in the shift process, can realize that the human body is partly sat the position appearance and is transported, reduces the shift process and changes the position appearance, guarantees under half sitting the state simultaneously that knee bending angle is 90 comfortable angles, and the at utmost reduces to hold in the palm to embrace the influence of shift process to the old man's health.

The omnidirectional moving chassis 1 comprises a chassis connecting plate 11, a first frame 101 and a second frame 102, wherein the first frame 101 and the second frame 102 are symmetrically arranged and are respectively connected with the chassis connecting plate 11, moving devices are respectively arranged at the bottoms of the first frame 101 and the second frame 102, the moving devices can be universal wheels and the like, and the moving of the whole device can be realized by means of the moving devices.

The upper body holding mechanism 2 includes a holding frame connecting pipe 21, a first holding frame 201, a second holding frame 202, a chest rest 22, a holding arm 23, a back support safety belt 24, a large arm support plate 27, an elbow support plate 28, and a grab handle 29. The first ends of the first bracketing frame 201 and the second bracketing frame 202 are respectively connected with one end of a bracketing frame connecting pipe 21, the second ends of the first bracketing frame 201 and the second bracketing frame 202 are respectively connected with one end of a back supporting safety belt, the length of the connection of the back supporting safety belt with the first bracketing frame 201 and the second bracketing frame 202 can be adjusted according to needs, the connection position of the back supporting safety belt with the first bracketing frame 201 and the second bracketing frame 202 is provided with a clasping arm 23, the middle positions of the first bracketing frame 201 and the second bracketing frame 202 are provided with a large arm supporting plate 27, an elbow supporting plate 28 and a grab handle 29, the large arm supporting plate 27, the elbow supporting plate 28 and the grab handle 29 are all fixedly connected with the first bracketing frame 201 and the second bracketing frame 202, the bracketing frame connecting pipe 21, the first bracketing frame 201, the second bracketing frame 202 and the back supporting safety belt form an annular structure, the chest rest 22 is disposed in the middle of the ring structure and is fixedly connected to the first and

second cradling frames

201 and 202 by means of a connecting pipe.

The lifting mechanism 3 comprises a driving rod, a U-shaped guide rod and a pulley block, two ends of the U-shaped guide rod are respectively connected with the first frame and the second frame, the pulley block and the U-shaped guide rod form a moving pair, and the driving rod is connected with the pulley block and the U-shaped guide rod by means of a connecting rod. The pulley block on each side is provided with three pulleys which are arranged in an inverted triangle, wherein the axis connecting line of the two pulleys is axially vertical to the U-shaped rod, and the other pulley is arranged on the inner side below the U-shaped rod. The arrangement of the pulley block can better enable the lifting mechanism 3 to lift, and the lifting can be realized by utilizing the minimum mechanical structure.

The sitting mechanism 4 comprises a seat plate supporting frame and a sitting seat plate, the sitting seat plate can be rotatably connected with the seat plate supporting frame, the supporting frame is connected with a first frame 101 and a second frame 102, and the sitting seat plate and the seat plate supporting frame are respectively provided with an arc-shaped bulge and an arc-shaped sliding groove which are used for limiting at the joint. The angle of arc spout is 240 degrees, and the protruding angle of arc is 60 degrees, and the arc is protruding to realize opening and shutting of 180 degrees in the arc spout, and the bedplate rotation axis sets up to the slant. The arrangement of the arc-shaped protrusion and the arc-shaped sliding groove can facilitate the seat plate to be opened or closed in a rotating mode.

The knee propping mechanism 5 comprises a first knee support 501 and a second knee support 502 which are adjacently arranged, the first knee support 501 and the second knee support 502 respectively comprise a knee guard plate and a connecting piece, the two connecting pieces are respectively connected with the first frame 101 and the second frame 102, and the two knee guard plates are respectively arranged on the connecting pieces and can perform up-down displacement and front-back displacement adjustment on the connecting pieces.

The connecting piece includes backplate backup pad, front and back regulation tab pin 51, arc return bend 52, adjust tab pin 53 from top to bottom, adjust pole 54 from top to bottom, adjust pole 56 and T venturi tube 57 from top to bottom, the first end and the chassis slant pipe fixed connection of arc return bend 52, the second end and the upper and lower regulation pole 54 fixed connection of arc return bend 52, adjust pole 54 from top to bottom and adjust pole 56 from top to bottom and fix and form T venturi tube 57 from top to bottom, adjust pole 56 and backplate backup pad fixed connection from top to bottom, backplate backup pad and knee backplate bolted connection.

The up-down adjusting rod 54 includes an up-down adjusting female rod and an up-down adjusting male rod, and the front-back adjusting rod 56 includes a front-back adjusting female rod and a front-back adjusting male rod, which are fixed to each other by welding.

The upper and lower adjusting female rods and the front and back adjusting female rods are provided with positioning holes, and the upper and lower adjusting male rods and the front and back adjusting male rods are provided with multi-stage adjusting holes.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Omni-directional movement chassis 11 includes chassis horizontal pipe 16, chassis slant pipe 15, chassis connecting plate 11, chassis horizontal connecting pipe 14, universal wheel 13 and universal wheel support 12, chassis horizontal pipe 16 is certain angle with chassis slant pipe 15 and passes through welded connection, constitute frame about the chassis, frame symmetry is placed about controlling, connect with the chassis connecting plate 11 with the bolt mode through chassis horizontal connecting

pipe

14, 16 both ends in chassis horizontal pipe are provided with universal wheel support 12, through welded connection, universal wheel support 12 passes through bolted connection with universal wheel 13, wherein the front end universal wheel has brake function.

The upper body supporting and embracing mechanism 22 comprises a supporting and embracing frame 26, an upper body cladding structure and an embracing supporting part, wherein the supporting and embracing frame comprises a left side supporting and embracing frame 26 and a right side supporting and embracing frame connecting pipe 21, the upper body cladding structure comprises a left side supporting arm 23, a right side supporting arm 22, a back supporting safety belt 24 and a safety belt buckle 25, the supporting and embracing frame 26, the supporting and embracing arm 23 and the chest supporting arm 22 are connected through bolts, the safety belt buckle 25 and the embracing arm 23 are connected through bolts, the embracing supporting part comprises a large arm supporting plate 27, an elbow supporting plate 28 and a grab handle 29, the position distribution of the three parts is the same as that of a human body when the human body is carried on the back, the supporting and embracing frame 26 and a pulley block are connected through bolts, and the pulley block 33 and a U-shaped guide rod 32 form a moving pair.

Elevating system 3 includes actuating lever 31, U type guide bar 32, actuating lever 31 is placed at the intermediate position, its tail end passes through the round pin hub connection with chassis horizontal connecting pipe 14, chassis horizontal connecting pipe 14 passes through bolted connection with chassis slant pipe 15, the front end with hold in the palm and embrace frame connecting pipe 21 and pass through the round pin hub connection, hold in the palm and embrace frame connecting pipe 21 and the left and right sides and hold in the palm and embrace frame 26 and pass through bolted connection, U type guide bar 32 cartridge is in chassis slant pipe 15, through bolt and chassis 1 fixed connection, it is vice to constitute the removal with U type guide bar 32 through the pulley to hold in the palm to embrace frame 26, actuating lever 31 drive holds in the palm and embraces frame 26 and reciprocates.

The sitting mechanism 4 comprises a seat plate supporting frame 41, a sitting plate 42 and a seat plate rotating pin shaft 43, wherein the seat plate supporting frame 41 is connected with the seat plate 42 through the seat plate rotating pin shaft 43, the seat plate supporting frame 41 is connected with the chassis oblique circular tube 15 through a bolt, and an arc-shaped bulge and an arc-shaped sliding groove are arranged at the seat plate rotating center and used for limiting the opening and closing of the sitting plate.

The knee ejection mechanism 5 is formed by serially connecting an arc-shaped bent pipe, an up-down adjusting structure, a front-back adjusting structure and a knee guard plate, the knee guard plate 55 serves as the tail end and can adjust the upper position, the lower position, the front position and the rear position, the adjusting mechanism in each direction is composed of two sections of round pipes, one end of the arc-shaped bent pipe 52 is connected with the chassis inclined round pipe 15 in a welding mode, the other end of the arc-shaped bent pipe is connected with the up-down adjusting rod 54 in a welding mode, an up-down adjusting sub-rod and a front-back adjusting main rod are welded into a T-shaped pipe 57 in a T mode, the front-back adjusting sub-rod is connected with the guard plate supporting plate in a welding mode, the guard plate supporting plate is connected with the knee guard plate 55 through a bolt group, each adjusting mechanism is composed of a round pipe nesting and a pin shaft to form a moving pair, and the knee guard plate 55 can reach the proper spatial position through the matching of an adjusting pin shaft and multi-stage hole positions.

The working process of the invention is specifically as follows:

as shown in fig. 6 to 7, when using, a nursing staff needs to be equipped to assist in operating the shifting device, the nursing staff first needs to convert the old or other persons needing to be shifted into a sitting posture, then the seat board is unfolded outwards so that the seat board is positioned at two sides of the seat, then the shifting device is pushed to the bedside and is placed right in front of the human body, the human body first puts two feet on the bottom pedal, then two pull ring pins of the knee propping mechanism are adjusted to enable the knees to be tightly attached to the sponge at the knee rest, the two arms of the human body are in an encircling posture, the handles are tightly held by two hands, then the safety belt at the back is adjusted to a proper position so as to ensure that the human body does not tilt backwards, meanwhile, the nursing staff locks the brakes of the two directional wheels, the lifting key is operated to enable the lifting mechanism to drive the upper half body holding mechanism to slowly lift up, the lifting action is finished after the lifting key is lifted to a proper position, and the brakes of the directional wheels are released, the shifting robot and the human body are slowly pulled out from the bedside, the seat plate is rotated to a proper position (namely, positioned below the hip of the human body), the locking mechanism is clamped, finally, the descending key is operated to slowly move the upper half of the human body downwards by virtue of the descending of the upper half supporting and embracing mechanism so as to enable the hip of the human body to be positioned on the seat plate, the whole shifting process is completed, then, the brake of the directional wheel is opened, the shifting device can be moved to the destination, then, the seat plate is opened, the upper half supporting and embracing mechanism is used for driving the human body to ascend, the human body is placed on a bed at the destination, and the whole shifting process is completed.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.

Claims

1. A transfer device for micro-changing human body posture is characterized in that: the device comprises an omnidirectional moving chassis, an upper body supporting and embracing mechanism, a lifting mechanism, a riding mechanism and a knee propping mechanism; the upper body supporting and embracing mechanism is arranged above the omnidirectional moving chassis, the riding mechanism is arranged below the upper body supporting and embracing mechanism, the lifting mechanism is connected with the upper body supporting and embracing mechanism and can drive the upper body supporting and embracing mechanism to move up and down, and the knee propping mechanism and the riding mechanism are arranged oppositely;

the upper body supporting and embracing mechanism comprises a supporting and embracing frame connecting pipe, a first supporting and embracing frame, a second supporting and embracing frame, a chest rest, an embracing arm, a back supporting safety belt, a large arm supporting plate, an elbow supporting plate and a grab handle; the first ends of the first holding frame and the second holding frame are respectively connected with one end of the holding frame connecting pipe, the second ends of the first holding frame and the second holding frame are respectively connected with one end of the back supporting safety belt, the length of the back supporting safety belt connected with the first holding frame and the second holding frame can be adjusted according to requirements, the connecting part of the back supporting safety belt and the first holding frame and the second holding frame is provided with a holding arm, the middle positions of the first holding frame and the second holding frame are provided with a large arm supporting plate, an elbow supporting plate and a grab handle, the large arm supporting plate, the elbow supporting plate and the grab handle are all fixedly connected with the first holding frame and the second holding frame, and the holding frame connecting pipe, the first holding frame, the second holding frame and the back supporting safety belt form an annular structure, the chest rest is arranged in the middle of the annular structure and is fixedly connected with the first holding frame and the second holding frame by virtue of connecting pipes respectively;

the sitting mechanism comprises a seat plate supporting frame and a sitting seat plate, the sitting seat plate is rotatably connected with the seat plate supporting frame, the supporting frame is connected with the first frame and the second frame, and an arc-shaped bulge and an arc-shaped sliding groove for limiting are respectively arranged at the joint of the sitting seat plate and the seat plate supporting frame;

2. The transfer device for micro-varying human body posture according to claim 1, characterized in that: the first frame and the second frame both comprise chassis oblique circular pipes and chassis horizontal circular pipes, the upper ends of the two chassis oblique circular pipes are connected through a chassis horizontal connecting pipe, the lower ends of the U-shaped guide rods are inserted into the upper ends of the chassis oblique circular pipes, and the lower portions of the chassis oblique circular pipes are connected with the chassis horizontal circular pipes.

3. The transfer device for micro-varying human body posture according to claim 2, characterized in that: the bottom of the horizontal round pipe of the chassis is connected with a universal wheel by means of a universal wheel connecting frame, and the universal wheel is provided with a brake device.

4. The transfer device for micro-varying human body posture according to claim 1, characterized in that: the back support harness is provided with a plurality of harness buckles for adjusting the length.

5. The transfer device for micro-varying human body posture according to claim 1, characterized in that: the driving rod is directly connected with the chassis horizontal connecting pipe and the connecting rod through a pin shaft.

6. The transfer device for micro-varying human body posture according to claim 1, characterized in that: the connecting piece includes backplate backup pad, front and back regulation pull ring round pin, arc return bend, upper and lower regulation pull ring round pin, upper and lower regulation pole, front and back regulation pole and T venturi tube, the first end of arc return bend with chassis slant circle fixed connection, the second end of arc return bend with upper and lower regulation pole fixed connection, upper and lower regulation pole with front and back regulation pole is fixed to be formed the T venturi tube, front and back regulation pole with backplate backup pad fixed connection, the backplate backup pad with knee backplate bolted connection.

7. The transfer device for micro-varying human body posture according to claim 6, characterized in that: the upper and lower adjusting rods comprise upper and lower adjusting female rods and upper and lower adjusting male rods, the front and rear adjusting rods comprise front and rear adjusting female rods and front and rear adjusting male rods, and the upper and lower adjusting male rods and the front and rear adjusting female rods are fixed together by welding.

8. The transfer device for micro-varying human body posture according to claim 7, characterized in that: the female pole of adjusting from top to bottom and the female pole of front and back adjustment all are provided with the locating hole, the son pole of adjusting from top to bottom and the son pole of front and back adjustment all are provided with multistage regulation hole.

9. The transfer device for micro-varying human body posture according to claim 1, characterized in that: the angle of arc spout is 240 degrees, the protruding angle of arc is 60 degrees, and the arc is protruding to realize opening and shutting of 180 degrees in the arc spout, the bedplate rotation axis sets up to the slant.

10. The transfer device for micro-varying human body posture according to claim 1, characterized in that: the actuating lever is connected with driving motor, driving motor is connected with the upper control ware, it all is provided with soft material to take mechanism bedplate, embrace the arm, chest to lean on and knee support department.