CN214909651U - Electric shifter - Google Patents

Abstract

The utility model belongs to the technical field of the aversion machine technique and specifically relates to an electronic machine of shifting, including base, lifting unit, carrier assembly and drive assembly, the base is including connecting the crossbearer and setting up the supporting leg at connecting the crossbearer both ends, the tip of supporting leg is provided with the universal wheel, the both ends of connecting the crossbearer are provided with electronic round, lifting unit includes elevating system, crane and sets up the guide post at connecting the crossbearer both ends, the both ends of crane are cup jointed on the guide post, sliding connection between crane and the guide post, elevating system sets up between crane and guide post or connection crossbearer, carrier assembly sets up on the crane. The utility model provides an electronic machine of shifting, through electronic round and elevating system's design, can realize realizing the electronic walking and the lift of machine of shifting under patient's initiative operation, convenient operation, the patient can self-care operation.

Description

Electric shifter

Technical Field

The utility model belongs to the technical field of the aversion machine technique and specifically relates to an electronic machine of shifting.

Background

In the prior art, medical staff is required to assist a shifting machine to move, and partial lower body is paralyzed and the upper body has certain mobility, so that the shifting machine is inconvenient to use and cannot move independently. Some walking vehicles have high cost, increase the use cost of consumers, are easy to break down, and have poor use performance and stability.

And current electronic lift machine of shifting, like the application of chinese utility model patent: 2019110384180, an electric lifting shifter, the lifting process of which is realized by a motor mechanism, but the moving process of which needs the operation of nursing staff, and the motor mechanism has a complex structure. For some people with freely movable hands, the use process of the nursing staff is inconvenient, and the nursing staff is required to operate and move, so that the nursing staff cannot take care of the hands.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technique not enough and provide an electronic machine of shifting, can realize electronic walking and lift, simple structure can be controlled by the patient by oneself moreover.

The utility model discloses an electric shifting machine, which comprises a base, a lifting assembly, a bearing assembly and a driving assembly, wherein the base comprises a connecting cross frame and supporting legs arranged at two ends of the connecting cross frame, the end parts of the supporting legs are provided with universal wheels, two ends of the connecting cross frame are provided with electric wheels, the electric wheels are in driving connection with the driving assembly, the lifting assembly comprises a lifting mechanism, a lifting frame and guide posts arranged at two ends of the connecting cross frame, two ends of the lifting frame are sleeved on the guide posts, the lifting frame is in sliding connection with the guide posts, the lifting mechanism is arranged between the lifting frame and the guide posts or the connecting cross frame, the driving assembly is in driving connection with the lifting mechanism, and the bearing assembly is arranged on the lifting frame; the driving assembly comprises a controller and a storage battery, the storage battery is arranged on the connecting transverse frame, the controller is arranged on the lifting frame and used for controlling the electric wheels and the lifting mechanism to move, and the storage battery provides electric energy for the electric wheels and the lifting mechanism to move.

Among the above-mentioned scheme, the design of setting at two independent control's of connecting the crossbearer both ends electronic walking of machine can be realized shifting, and the controller setting is on the crane moreover, and it goes up and down along with the crane together, and the patient of being convenient for is from operation control shifting machine walking by oneself, and the controller can the independent control lifting unit action simultaneously, realizes by patient self-control electric lift. Thereby effectively improving the service performance of the equipment.

The lifting mechanism comprises a screw rod, a threaded sleeve and a motor, the screw rod and the threaded sleeve are matched and then arranged between the guide post and the lifting frame, one part of the screw rod and the threaded sleeve is rotatably connected with the connecting cross frame, the part is in transmission connection with the motor arranged on the connecting cross frame, and the other part of the screw rod and the threaded sleeve is fixedly connected with the lifting frame. The motor is characterized in that a screw rod is rotatably connected with a connecting cross frame, a bevel gear is arranged at the end part of the screw rod, a bevel gear is also arranged on an output shaft of the motor, and the two bevel gears are in matched transmission connection. All set up the combination of lead screw and swivel nut between the guide post of connecting the crossbearer both ends and crane, the lower extreme of its two sets of lead screws all sets up the bevel gear, and its motor adopts the chinese utility model patent, patent number 202020650019.1, patent name: a coaxial output connecting mechanism of double motors is characterized in that a shaft of a worm wheel is used as an output shaft, a bevel gear is arranged on the output shaft and is matched with the bevel gear of a screw rod for transmission connection, and synchronous motion of the output shaft and the bevel gear can be realized. Of course, the output shaft of the double motor in the coaxial output connecting mechanism of the double motor is directly provided with a bevel gear which is matched with the bevel gear on the screw rod for transmission. The self-locking of the lifting mechanism can be realized by the lead screw and the thread sleeve, and the lead screw angle is smaller than the equivalent friction angle.

The bearing component comprises two seat boards, wherein the two sides of the lifting frame are respectively provided with a mounting frame, the seat boards are respectively connected with the mounting frames on the lifting column in a rotating mode through a pin shaft in the vertical direction, the peripheries of the two seat boards after being butted are provided with surrounding baffles, positioning holes are formed in the seat boards and the corresponding mounting frames, and positioning pins are arranged in the positioning holes. The design of this structure can be opened two bedplate in the use, and under the bedplate was put into to the aversion machine was close to human back, the bedplate folded in and closed to realize human bearing and injecing, easy operation is convenient, need not unnecessary action, and with electric lift's function cooperation, the healthy patient of suitable upper limbs uses, realizes that it removes self-care.

Preferably, the bearing assembly comprises side blocking frames and a tail blocking frame, the side blocking frames are arranged on two sides of the upper end of the lifting frame respectively, the end part of one side blocking frame is rotatably connected with the tail blocking frame, the tail blocking frame is positioned on the side blocking frame far away from one end of the lifting frame, and the other end of the tail blocking frame is connected with the end part of the other side blocking frame through a locking mechanism. Above-mentioned scheme, the one end of side fender frame can be fixed on the crane, can bear the human body through the suspender between two side fender frames, and the tail keeps off the frame and rotates to the rear to be connected through locking mechanical system between with another side fender frame, so make the human body be in a confined annular region, can not take place to empty etc. the security is higher. And only need rotate the one side of side fender frame with the tail fender frame in the use, so need not expand the side fender frame, its space that occupies is little, supports the back when the human body, then closes the tail fender frame again, plays the effect of protection.

The side that is close to crane one side keeps off the frame upper and lower both ends and is provided with L type bolt respectively, L type bolt includes horizontal connecting portion and vertical grafting portion, and the horizontal connecting portion of the L type bolt of side fender frame upper end is fixed at the upper surface that keeps off the frame, and the horizontal connecting portion of the L type bolt of side fender frame lower extreme is fixed at the lower surface that keeps off the frame, there is the clearance between the side that vertical grafting portion and side fender frame are close to the crane side, and both ends all are provided with a connecting piece about the side of the crane that corresponds the department with the side fender frame, the connecting piece corresponds with L type bolt one-to-one, form the spliced eye of vertical direction between connecting piece and the crane, be provided with a screw on the connecting piece of crane below, be provided with the puller bolt in the screw, the puller bolt is used for restricting L type bolt inside the spliced eye. The design of this structure can realize pegging graft through L type bolt and spliced eye between side fender frame and the crane, can pull down in the transportation, reduces its shared volume, so can put vapour car trunk etc. it is more convenient to use, utilizes the locking bolt to fasten in addition, makes the connection between side fender frame and the crane more firm, and the security is higher in the use.

The cross section of the L-shaped bolt is of a flat plate structure. This structure can make the connection between L type bolt and the spliced eye more stable, the side fender more stable in the use, can not take place the circumstances of rotation about, the security is higher.

The locking mechanism comprises a hollow sleeve arranged at one end of a tail baffle frame, a rotating shaft is arranged in the middle of the hollow sleeve, a rotating disc is arranged on the rotating shaft in the hollow sleeve, locking pins are connected to two ends of the hollow sleeve in a sliding manner, a pull rod is connected to the locking pin on one side in the hollow sleeve in a rotating manner through a pin shaft, the other end of the pull rod is connected to the periphery of the rotating disc through the pin shaft in a rotating manner, the axial direction of the pin shaft is parallel to the axial direction of the rotating shaft, connecting beams extend outwards horizontally from the upper end and the lower end of the end part of the side baffle frame which is in butt joint with the tail baffle frame, the distance between the connecting beams is larger than or equal to the length of the hollow sleeve, upward concave holes are arranged on the lower surface of the connecting beam at the upper end, downward concave holes are arranged on the upper surface of the connecting beam at the lower end, the two concave holes are positioned on the same vertical straight line, and when the hollow sleeve rotates to a position between the two connecting beams, the locking pin corresponds to the recessed hole.

The design of above-mentioned structure can set up the handle in the pivot for the rotation of operation pivot. The connecting positions of the pull rods on the rotary disc are at two ends in the same diameter direction, and the effect is best in the state. In the rotating process of the rotating shaft, the rotating disc rotates along with the rotating shaft to drive the pull rod to move in the hollow sleeve, so that the locking pins protrude out of two ends of the hollow sleeve or retract into two ends of the hollow sleeve. When needs are locked between backstop frame and the side fender frame, rotate the backstop frame to between two crossbeams, just the stop pin is corresponding with interior concave hole, then rotates pivot and carousel for two tie points of pull rod on the carousel are located the central axis of cavity sheathed tube, and at this moment, two pull rods then outwards push the stop pin, and distance between two stop pins is the biggest, and it all exposes outside the cavity sheathed tube, and inside the shrinkage pool in inserting, realizes being connected and locking between backstop frame and the side fender frame, and firm in connection nature is better, and stability is high. When the rotating shaft turntable rotates until the connecting point of the pull rod on the turntable is located in the radial plane of the hollow sleeve, the locking pin is pulled close, so that the locking pin is completely retracted into the hollow sleeve, the tail blocking frame and the side blocking frame are disengaged, and the rotating shaft turntable is convenient to operate, safe and reliable.

The side baffle frame which is rotatably connected with the tail baffle frame in the two side baffle frames is of a hollow frame structure, the hollow area of the hollow frame structure of the side baffle frame is larger than the external size of the tail baffle frame, and two limiting holes matched with the locking pins on the tail baffle frame are arranged in the hollow area of the hollow frame structure of the side baffle frame. The design of this structure when the tail keeps off the frame and does not use, can keep off the frame with the tail and rotate to the hollow area of the side that is connected with it in the frame to utilize locking mechanical system keep off the frame locking with the tail and keep off on the frame, it is more convenient, safe and reliable to dismantle, remove.

Preferably, the bearing assembly comprises a handrail frame arranged on two sides of the upper end of the lifting frame and a tail connecting frame arranged at the end part of the handrail frame, a connecting seat is arranged on the lifting frame at the corresponding position of the upper end of the handrail frame and is of a U-shaped structure, a rotating seat is arranged in the connecting seat and is rotatably connected with the rotating seat through a horizontal pin shaft, the rotating seat is rotatably connected with the upper end of the handrail frame, the rotating axial direction between the rotating seat and the connecting seat is perpendicular to the rotating axial direction between the rotating seat and the handrail frame, and a supporting seat used for supporting on the lifting frame is arranged at the lower end of the handrail frame.

In the above scheme, be connected through connecting seat and rotation seat between the upper end of handrail frame and the crane, only be connected for rotating between rotation seat and the handrail frame, so at the in-process of drawing in the handrail frame, can upwards overturn the handrail frame, rotate the seat and rotate around the round pin axle on the connecting seat this moment, upwards the upset back, rotate the handrail frame, make and take place to rotate between handrail frame and the rotation seat, make the plane of handrail frame place and crane place plane parallel, rotate downwards between last connecting seat and the rotation seat, can make the laminating of whole handrail frame on whole crane, realize drawing in of handrail frame, and is simple and convenient, the area of occupying after drawing in is less, be convenient for transport and transportation.

The handrail frame far away from one end of the lifting frame is provided with a vertical upward insertion hole, the lower end of the tail connecting frame is provided with a downward insertion shaft, and the insertion shaft is inserted into the corresponding insertion hole. The design of this structure for be connected between afterbody link and the handrail frame is simple and convenient more, and stability is high.

The utility model provides an electronic machine of shifting, through electronic round and elevating system's design, can realize realizing the electronic walking and the lift of machine of shifting under patient's initiative operation, convenient operation, the patient can self-care operation.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is a schematic structural view of the lifting mechanism of the present invention;

fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;

fig. 4 is a schematic view of a connection structure between the lower end of the side baffle frame and the lifting frame in embodiment 2 of the present invention;

fig. 5 is a schematic view of a connection structure between the upper end of the side baffle frame and the lifting frame in embodiment 2 of the present invention;

fig. 6 is a schematic structural view of a lock mechanism according to embodiment 2 of the present invention;

FIG. 7 is a schematic cross-sectional view A-A of FIG. 6;

FIG. 8 is a schematic cross-sectional view C-C of FIG. 7;

fig. 9 is a schematic structural view of embodiment 3 of the present invention;

fig. 10 is a schematic structural view of a furled state of embodiment 3 of the present invention;

fig. 11 is a cross-sectional view of the utility model, which is used to connect the armrest frame and the lifting frame in embodiment 3.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1:

as shown in fig. 1 and fig. 2, the utility model discloses an electric shifting machine, which comprises a base 1, a lifting component 2, a bearing component 3 and a driving component, the base 1 comprises a connecting cross frame 11 and supporting legs 12 arranged at two ends of the connecting cross frame 11, universal wheels 13 are arranged at the end parts of the supporting legs 12, electric wheels 14 are arranged at the two ends of the connecting transverse frame 11, the electric wheel 14 is in driving connection with the driving component, the lifting component 2 comprises a lifting mechanism, a lifting frame 22 and guide posts 21 arranged at two ends of the connecting cross frame 11, the two ends of the lifting frame 22 are sleeved on the guide post 21, the lifting frame 22 is connected with the guide post 21 in a sliding way, the lifting mechanism is arranged between the lifting frame 22 and the guide column 21 or the connecting cross frame 11, the driving component is in driving connection with the lifting mechanism, and the bearing component 3 is arranged on the lifting frame 22; the driving assembly comprises a controller 4 and a storage battery 5, the storage battery 5 is arranged on the connecting transverse frame 11, the controller 4 is arranged on the lifting frame 22, the controller 4 is used for controlling the actions of the electric wheels 14 and the lifting mechanism, and the storage battery 5 provides electric energy for the actions of the electric wheels 14 and the lifting mechanism.

The lifting mechanism comprises a screw rod 25, a threaded sleeve 24 and a motor 23, the screw rod 25 is matched with the threaded sleeve 24 and then arranged between the guide post 21 and the lifting frame 22, one part of the screw rod 25 and the threaded sleeve 24 is rotatably connected with the connecting transverse frame 11 and is in transmission connection with the motor 23 arranged on the connecting transverse frame 11, and the other part of the screw rod 25 and the threaded sleeve 24 is fixedly connected with the lifting frame 22.

The bearing component 3 comprises two seat boards 31, two mounting frames are arranged on two sides of the lifting frame 22 respectively, the seat boards 31 are connected with the mounting frames on the lifting column in a rotating mode through pin shafts in the vertical direction, the peripheries of the two seat boards 31 after being butted are provided with surrounding baffles 32, positioning holes are formed in the seat boards 31 and the corresponding mounting frames, and positioning pins are arranged in the positioning holes.

Example 2:

as shown in fig. 3-5, the utility model discloses an electric shifting machine, its difference with embodiment 1 lies in: l-shaped bolts 38 are respectively arranged at the upper end and the lower end of the side baffle frame 36 close to one side of the lifting frame 2, the L-shaped bolt 38 comprises a horizontal connecting part and a vertical inserting part, the horizontal connecting part of the L-shaped bolt 38 at the upper end of the side baffle frame 36 is fixed on the upper surface of the side baffle frame 36, the horizontal connecting part of the L-shaped bolt 38 at the lower end of the side baffle frame 36 is fixed on the lower surface of the side baffle frame 36, a gap is formed between the vertical inserting part and the side surface of the side baffle frame 36 close to the lifting frame 2, the upper end and the lower end of the side surface of the lifting frame 2 corresponding to the side baffle frame 36 are respectively provided with a connecting piece 39, the connecting pieces 39 correspond to the L-shaped bolts 38 one by one, a vertical inserting hole is formed between the connecting pieces 39 and the lifting frame 2, a screw hole is arranged on the connecting piece 39 below the lifting frame 2, a tightening bolt 310 is arranged in the screw hole, and the tightening bolt 310 is used for limiting the L-shaped bolt 38 in the inserting hole.

The cross section of the L-shaped bolt 38 is a flat plate-shaped structure.

As shown in fig. 6 to 8, the locking mechanism includes a hollow sleeve 311 disposed at one end of the tail stock 7, a rotating shaft 312 is disposed at a middle portion of the hollow sleeve 311, a rotating disc 313 is disposed on the rotating shaft 312 within the hollow sleeve 311, locking pins 315 are slidably connected to both ends of the hollow sleeve 311, a pull rod 314 is rotatably connected to the locking pins 315 at one side within the hollow sleeve 311 by pins, the other ends of the pull rods 314 are rotatably connected to the periphery of the rotating disc 313 by pins, respectively, the axial direction of the pins is parallel to the axial direction of the rotating shaft 312, connecting beams 316 extend horizontally outwards from upper and lower ends of an end portion of the side stock 36 opposite to the tail stock 37, a distance between the connecting beams 316 is greater than or equal to the length of the hollow sleeve 311, an upward concave hole is disposed on a lower surface of the connecting beam 316, a downward concave hole is disposed on an upper surface of the connecting beam 316 at a lower end, the two inner concave holes are in the same vertical line, and when the hollow sleeve 311 is rotated to between the two connecting beams 316, the locking pins 315 correspond to the inner concave holes.

At least one side baffle frame 36 rotatably connected with the tail baffle frame 37 in the two side baffle frames 36 is of a hollow frame structure, the hollow area of the hollow frame structure of the side baffle frame 36 is larger than the external size of the tail baffle frame 37, and two limiting holes matched with the locking pins 315 on the tail baffle frame 37 are arranged in the hollow area of the hollow frame structure of the side baffle frame 36.

Example 3:

as shown in fig. 9-11, the utility model discloses an electric shifting machine, its difference with embodiment 1 lies in: the bearing component 3 is including setting up the handrail frame 320 and the afterbody link 321 that sets up handrail frame 320 tip in crane 2 upper end both sides, is provided with a connecting seat 322 on the crane 2 that corresponds the department in handrail frame 320 upper end, and connecting seat 322 is U type structure, is provided with in connecting seat 322 and rotates seat 323, connecting seat 322 rotates through the horizontally round pin axle between the seat 323 with rotating and is connected, rotate the seat 323 and be connected with the upper end rotation of handrail frame 320, and rotate the rotation axial direction perpendicular to between seat 323 and the connecting seat 322 and rotate the rotation axial of seat 323 and handrail frame 320, be provided with the supporting seat 324 that is used for supporting on crane 2 at the lower extreme of handrail frame 320.

The armrest frame 320 far away from one end of the lifting frame 2 is provided with an upward vertical insertion hole 325, the lower end of the tail connecting frame 321 is provided with a downward insertion shaft, and the insertion shaft is inserted into the corresponding insertion hole 325.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims (9)

1. An electric shifting machine is characterized in that: the lifting device comprises a base, a lifting assembly, a bearing assembly and a driving assembly, wherein the base comprises a connecting cross frame and supporting legs arranged at two ends of the connecting cross frame, universal wheels are arranged at the end parts of the supporting legs, electric wheels are arranged at two ends of the connecting cross frame, the electric wheels are in driving connection with the driving assembly, the lifting assembly comprises a lifting mechanism, a lifting frame and guide posts arranged at two ends of the connecting cross frame, two ends of the lifting frame are sleeved on the guide posts, the lifting frame is in sliding connection with the guide posts, the lifting mechanism is arranged between the lifting frame and the guide posts or the connecting cross frame, the driving assembly is in driving connection with the lifting mechanism, and the bearing assembly is arranged on the lifting frame; the driving assembly comprises a controller and a storage battery, the storage battery is arranged on the connecting transverse frame, the controller is arranged on the lifting frame and used for controlling the electric wheels and the lifting mechanism to move, and the storage battery provides electric energy for the electric wheels and the lifting mechanism to move.

2. An electric machine according to claim 1, characterized in that: the lifting mechanism comprises a screw rod, a threaded sleeve and a motor, the screw rod and the threaded sleeve are matched and then arranged between the guide post and the lifting frame, one part of the screw rod and the threaded sleeve is rotatably connected with the connecting cross frame, the part is in transmission connection with the motor arranged on the connecting cross frame, and the other part of the screw rod and the threaded sleeve is fixedly connected with the lifting frame.

3. An electric machine according to claim 1 or 2, characterized in that: the bearing component comprises two seat boards, wherein the two sides of the lifting frame are respectively provided with a mounting frame, the seat boards are respectively connected with the mounting frames on the lifting column in a rotating mode through a pin shaft in the vertical direction, the peripheries of the two seat boards after being butted are provided with surrounding baffles, positioning holes are formed in the seat boards and the corresponding mounting frames, and positioning pins are arranged in the positioning holes.

4. An electric machine according to claim 1 or 2, characterized in that: the bearing assembly comprises side blocking frames and a tail blocking frame, the side blocking frames are arranged on two sides of the upper end of the lifting frame respectively, the end part of one side blocking frame is connected with the tail blocking frame in a rotating mode, the tail blocking frame is located on the side blocking frame far away from one end of the lifting frame, and the other end of the tail blocking frame is connected with the end part of the other side blocking frame through a locking mechanism.

5. An electric displacement machine according to claim 4, characterized in that: the side that is close to crane one side keeps off the frame upper and lower both ends and is provided with L type bolt respectively, L type bolt includes horizontal connecting portion and vertical grafting portion, and the horizontal connecting portion of the L type bolt of side fender frame upper end is fixed at the upper surface that keeps off the frame, and the horizontal connecting portion of the L type bolt of side fender frame lower extreme is fixed at the lower surface that keeps off the frame, there is the clearance between the side that vertical grafting portion and side fender frame are close to the crane side, and both ends all are provided with a connecting piece about the side of the crane that corresponds the department with the side fender frame, the connecting piece corresponds with L type bolt one-to-one, form the spliced eye of vertical direction between connecting piece and the crane, be provided with a screw on the connecting piece of crane below, be provided with the puller bolt in the screw, the puller bolt is used for restricting L type bolt inside the spliced eye.

6. An electric machine according to claim 5, wherein: the locking mechanism comprises a hollow sleeve arranged at one end of a tail baffle frame, a rotating shaft is arranged in the middle of the hollow sleeve, a rotating disc is arranged on the rotating shaft in the hollow sleeve, locking pins are connected to two ends of the hollow sleeve in a sliding manner, a pull rod is connected to the locking pin on one side in the hollow sleeve in a rotating manner through a pin shaft, the other end of the pull rod is connected to the periphery of the rotating disc through the pin shaft in a rotating manner, the axial direction of the pin shaft is parallel to the axial direction of the rotating shaft, connecting beams extend outwards horizontally from the upper end and the lower end of the end part of the side baffle frame which is in butt joint with the tail baffle frame, the distance between the connecting beams is larger than or equal to the length of the hollow sleeve, upward concave holes are arranged on the lower surface of the connecting beam at the upper end, downward concave holes are arranged on the upper surface of the connecting beam at the lower end, the two concave holes are positioned on the same vertical straight line, and when the hollow sleeve rotates to a position between the two connecting beams, the locking pin corresponds to the recessed hole.

7. An electric machine according to claim 6, wherein: the side baffle frame which is rotatably connected with the tail baffle frame in the two side baffle frames is of a hollow frame structure, the hollow area of the hollow frame structure of the side baffle frame is larger than the external size of the tail baffle frame, and two limiting holes matched with the locking pins on the tail baffle frame are arranged in the hollow area of the hollow frame structure of the side baffle frame.

8. An electric machine according to claim 1 or 2, characterized in that: the bearing component comprises a handrail frame arranged on two sides of the upper end of the lifting frame and a tail connecting frame arranged at the end part of the handrail frame, wherein a connecting seat is arranged on the lifting frame at the corresponding position of the upper end of the handrail frame, the connecting seat is of a U-shaped structure, a rotating seat is arranged in the connecting seat, the connecting seat and the rotating seat are connected in a rotating mode through a horizontal pin shaft, the rotating seat is connected with the upper end of the handrail frame in a rotating mode, the rotating axial direction between the rotating seat and the connecting seat is perpendicular to the rotating axial direction between the rotating seat and the handrail frame, and a supporting seat used for supporting on the lifting frame is arranged at the lower end of the handrail frame.

9. An electric machine according to claim 8, wherein: the handrail frame far away from one end of the lifting frame is provided with a vertical upward insertion hole, the lower end of the tail connecting frame is provided with a downward insertion shaft, and the insertion shaft is inserted into the corresponding insertion hole.

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