Multifunctional shifting machine

Abstract

The invention provides a multifunctional shifting machine, which relates to the technical field of shifting machines, and comprises a walking wheel carrier used for moving the shifting machine; the auxiliary supporting wheel assembly is arranged at the bottom of the walking wheel frame; the driving mechanism drives the auxiliary supporting wheel assembly to rise and fall; the auxiliary supporting wheel assembly comprises an auxiliary supporting wheel and a mounting part, the auxiliary supporting wheel is rotationally connected to one end of the mounting part, and the other end of the mounting part is hinged to the bottom of the walking wheel frame; the auxiliary supporting wheel assembly ascends and descends under the action of the driving mechanism. When the auxiliary supporting wheel assembly falls down, the front universal wheel of the walking wheel frame is lifted to a certain height and then crosses the obstacle. The moving machine can pass through non-smooth road surfaces such as obstacles and grooves through the auxiliary supporting wheel assemblies. Meanwhile, the functions of armrest width adjustment of the shifting machine, lifting of demanders with different body types, conversion of prone postures and sitting postures of the demanders, seat rotation, folding and the like can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of transfer machines, and in particular to a multifunctional transfer machine. Background Art

[0002] A transfer machine is a professional mobile assistive device used in the care of disabled elderly people. It can significantly reduce the workload and safety risks of caregivers and nannies in the process of caring for disabled or semi-disabled elderly people, while improving the quality and efficiency of care.

[0003] At present, the existing transfer machines on the market are similar to wheelchairs with lifting functions. They can lift the seat to the height of different beds and then move the person to the transfer machine, and then move to the bathroom or dining table. Most of the existing transfer machine structures use four universal wheels installed at the bottom of the walking wheel frame, and the lifting system is installed on the top of the walking wheel frame and connected to the seat to achieve seat lifting. The seat can be opened and closed 180 degrees and has a toilet hole in the middle.

[0004] However, the user must put on and take off pants when using the toilet, and during this process the user's buttocks will inevitably leave the seat. However, it is difficult for a nanny to pick up the user and put on pants for him at the same time, and the existing transfer machine cannot provide certain assistance in this process.

[0005] Existing transfer machines can only meet the needs of semi-disabled people. For those with complete disability or specific disability, existing transfer machines cannot provide assistance in changing from a lying position to a sitting position, and can only rely on the nanny to complete the task manually. However, if the person is overweight, it is difficult for a single nanny to change the person from a lying position to a sitting position, especially to transfer from a sitting position to the seat of the transfer machine, which is extremely difficult for the nanny. Summary of the invention

[0006] In order to solve the above-mentioned technical problems, a multifunctional transfer machine is provided.

[0007] The technical means adopted by the present invention are as follows:

[0008] A multifunctional shifting machine comprises a walking wheel frame, the bottom end of an armrest lifting mechanism is connected to the rear of the walking wheel frame, the top of the armrest lifting mechanism is connected to an armrest rotating mechanism, the armrest lifting mechanism is used to drive the armrest rotating mechanism to swing, and the axis of the swing center extends left and right, the armrest rotating mechanism is connected to an armrest width adjustment mechanism, the armrest rotating mechanism is used to rotate the armrest width adjustment mechanism, and the axis of the rotation center extends front and back, armrests are respectively installed at both ends of the armrest width adjustment mechanism, and the armrest width adjustment mechanism is used to adjust the distance between the two armrests; an auxiliary support wheel assembly and a driving mechanism for driving the auxiliary support wheel assembly to rise and fall are arranged in the bottom of the walking wheel frame, and the front universal wheel of the walking wheel frame is lifted after the auxiliary support wheel assembly falls; a seat assembly is installed at the front of the walking wheel frame.

[0009] Preferably, one end of the bottom of the armrest lifting mechanism is hinged to the running wheel frame. The armrest lifting mechanism and the running wheel frame are hinged to realize the overall folding of the armrest lifting mechanism and other mechanisms on the armrest lifting mechanism, so as to facilitate the storage of the entire transfer machine.

[0010] Preferably, the armrest lifting mechanism includes a main column assembly, a roller bearing assembly, a lifting frame assembly and a connecting plate; the main column assembly includes a shell, a lifting unit arranged in the shell, a push rod and a steel pipe arranged outside the push rod, and the steel pipe is fixedly connected to the top of the shell; the bottom of the shell is connected to the walking wheel frame; the bottom end of the push rod is connected to the output end of the lifting unit, and the top end of the push rod is fixedly connected to the roller bearing assembly; the lifting frame assembly includes a lifting arm, the middle part of which is placed on the roller bearing assembly, and one end of the lifting arm is hinged to one end of the connecting plate, and the other end of the connecting plate is fixedly connected to the steel pipe; the armrest rotating mechanism is connected to the front part of the lifting arm. The lifting unit works to make the push rod rise, and then the roller bearing assembly rises, driving the armrest rotating mechanism, the armrest width adjustment mechanism and the armrest to swing, and the lifting arm forms a lever effect.

[0011] Preferably, a height adjustment mechanism for adjusting the height of the top rod is provided between the top rod and the lifting unit. The height adjustment mechanism adjusts the initial position of the armrest according to different users, and for one person, the height only needs to be adjusted once.

[0012] Preferably, the armrest rotation mechanism comprises a semicircular plate, the semicircular plate is fixedly connected to the front part of the lifting arm, the middle part of the armrest width adjustment mechanism is rotatably connected to the semicircular plate, a plurality of positioning holes are arranged on the semicircular plate, and a spring limit pin matching with the positioning holes is fixed to the bottom of the width adjustment mechanism. By setting the armrest rotation mechanism, the armrest can be rotated, and the effect of one armrest being located at the top and the other armrest being located at the bottom can be achieved.

[0013] Preferably, the armrest width adjustment mechanism comprises an outer sleeve and a left telescopic arm and a right telescopic arm disposed at the left and right ends of the outer sleeve and movably connected thereto, and a telescopic unit is disposed in the outer sleeve to drive the left telescopic arm and the right telescopic arm to move toward or away from each other; the left and right armrests are respectively connected to the left telescopic arm and the right telescopic arm. The distance between the two armrests can be adjusted by the arrangement of the armrest width adjustment mechanism to meet the needs of different users.

[0014] Preferably, the left telescopic arm and the right telescopic arm are respectively hinged to the two armrests, and a limit block is provided at the hinge, and the setting of the limit block makes the flip angle of the two armrests 270°, and the two armrests cannot rotate downward when they are at the rear. The hinge setting of the armrest can realize the flipping of the armrest.

[0015] The left telescopic arm and the right telescopic arm are respectively hinged to the two armrests, and a limiting block is arranged at the hinge.

[0016] The auxiliary support wheel assembly includes an auxiliary support wheel and a mounting member, and the driving mechanism includes a wire rope, a direction-changing pulley group and a wire rope connecting assembly, the auxiliary support wheel is rotatably connected to one end of the mounting member, and the other end of the mounting member is hinged to the bottom of the walking wheel frame; the wire rope connecting assembly includes a U-shaped handle, and a hook is arranged in the U-shaped handle; one end of the wire rope is fixedly connected to one end of the mounting member close to the auxiliary support wheel, and the other end is fixedly connected to the U-shaped handle after changing direction through the direction-changing pulley group; the connecting plate is hinged to the rear end of the lifting arm through a connecting plate and a cylindrical nut pin; the two connecting plates are symmetrically fixed to the left and right sides of the lifting arm On the right side, the lower parts of the two connecting plates are hinged to the connecting plates through the cylindrical nut pins, and the upper part of the connecting plate is provided with a first U-shaped hook with an opening facing upward, and the first U-shaped hook matches the hook; a second U-shaped hook is fixed above the front part of the lifting arm, the opening of the second U-shaped hook is arranged toward the front, and the second U-shaped hook matches the hook; when the auxiliary support wheel assembly is used, the hook is placed in the second U-shaped hook, and when the lifting unit drives the second U-shaped hook to rise and fall, the wire rope drives the auxiliary support wheel to fall; when the auxiliary support wheel assembly is not used, the hook is placed in the first U-shaped hook. By setting the auxiliary support wheel, the effect of passing obstacles can be achieved.

[0017] Preferably, a seat bottom load-bearing crossbeam assembly is installed on the walking wheel frame, and mounting holes are respectively provided in the middle and at both ends of the seat bottom load-bearing crossbeam assembly; the mounting hole at one end is provided with a guide sleeve, a plug bolt is provided in the guide sleeve, and a thrust bearing is provided between the joint surface of this mounting hole and the walking wheel frame; a spring locating pin is provided in the mounting hole at the other end, and a locker is provided on the end face of the seat bottom load-bearing crossbeam assembly on the same side; the mounting hole in the middle is used to install a support rod, and the upper end of the support rod is connected to the seat assembly, and the bottom end of the support rod is connected to the seat bottom load-bearing crossbeam assembly, and the seat assembly can rotate on the support rod. The arrangement of the above-mentioned device can realize the movement of the seat body to one side of the shifting machine.

[0018] Preferably, the support rod is a lifting gas rod for adjusting the height of the seat assembly. The lifting of the seat assembly can be achieved through the lifting gas rod.

[0019] Preferably, the seat assembly comprises a U-shaped seat cushion with toilet hole and a toilet pan located at the bottom of the U-shaped seat cushion with toilet hole. The toilet pan is arranged at the bottom of the U-shaped seat cushion with toilet hole for convenience of the user.

[0020] Preferably, a multifunctional lift has straps, wherein the straps are slings that are hung on the armrests when in use.

[0021] Preferably, a front universal wheel is provided at the front bottom of the traveling wheel frame, and a rear universal wheel with a brake is provided at the rear bottom.

[0022] Preferably, the running wheel frame has a pedal.

[0023] The multifunctional transfer machine disclosed in the present invention has the following functions:

[0024] Function of setting the initial height of the armrests of the transfer machine from the ground: when the user is sitting, due to the different heights of the user, the height of the bed, chair, wheelchair, etc., the height of the user's armpits from the ground is different. It is necessary to first set the initial position of the armrests to the height of the user's armpits, and use the height adjustment mechanism to adjust the height of the armrests (if it is used by one person, the initial position only needs to be adjusted once). After the initial position of the armrests is set, place the two armrests under the user's armpits to better fit the user's armpits.

[0025] Help the user to sit up from a lying position; first, lay the sling under the user, turn the seat assembly to one side of the lift, move the lift to the front of the bed and lock the two rear universal wheels, flip the armrest close to the user's head 270°, pull out the spring limit pin, and turn the other armrest to the upper position. At this time, the spring limit pin is inserted into the horizontal positioning hole of the semicircular plate, adjust the length of the sling, and hang the sling on the armrest in the upper position when it is suitable. Rotate the armrest rotating mechanism to a horizontal position, insert the spring limit pin into the limit hole, tighten the sling to fix the user on the armrest, and the sling functions as a safety belt. If the user is tall and the armrest helps the user to sit in an incorrect position, the armrest lifting mechanism can be used to supplement the armrest's travel.

[0026] Width adjustment function between the two armrests: Due to the different body shapes of different users, the width between the two armrests needs to be adjusted before lifting the user. The two armrests must be properly clamped under the user's armpits to make the user feel safe and comfortable during the lifting process. The present invention uses an armrest width adjustment mechanism to adjust the width between the two armrests. During adjustment, a belt can be used to hold the user and connect it to the two armrests to act as a safety belt.

[0027] Function of lifting the person in need by handrail: Place the wire rope connection assembly in the first U-shaped hook, the lifting unit works, drives the top rod to rise, and lifts the lifting frame assembly to make a circular motion. At this time, the two handles move upward to lift the person in need. The person in need can be lifted up to take off and put on pants, wash the whole body, and lift to the car seat at different heights. At this time, the auxiliary support wheel does not move.

[0028] Function of the lift machine passing obstacles: Place the wire rope connection assembly into the second U-shaped hook, and the lifting unit will work, driving the top rod to rise, lifting the lifting frame assembly to make a circular motion, and the wire rope connected to the wire rope connection assembly on the lifting frame assembly will pull the auxiliary support wheel downward through the reversing pulley group, supporting the front universal wheel, and the handrail will be lifted at the same time. If the handrail does not need to be lifted at the same time, the handrail can be flipped backward 270 degrees together. After the front universal wheel passes the obstacle, the lifting unit drives the top rod to descend, so that the auxiliary support wheel assembly returns to the starting position.

[0029] Use the seat load-bearing crossbeam to drive the seat rotation function: pull up the spring positioning pin and push the seat assembly to rotate the seat assembly on the plane of the running wheel frame. When the seat returns to its original position, the spring positioning pin is automatically inserted into the installation hole for positioning. The seat assembly can rotate 360 ​​degrees on the load-bearing crossbeam assembly at the bottom of the seat. When the seat assembly faces the rear wheel, the seat assembly is raised with a lifting gas rod. The user can put his feet on the pedal of the running wheel frame. When the seat assembly turns to the front wheel position, the user can brush his teeth, wash his face, and eat near the sink. After the seat assembly is lowered, the user can wash his feet and do leg exercises.

[0030] The whole machine can be folded: the two armrests flip backwards 270 degrees, and the armrest lifting mechanism is folded forward 90 degrees as a whole. The whole machine is folded, which can be conveniently placed in the trunk of the vehicle and reduce the size of the packaging box.

[0031] The present invention has the following advantages:

[0032] 1. The present invention provides an armrest lifting mechanism, so that when the user is using the toilet, the transfer machine can safely and comfortably lift the user to a certain height, and then it is convenient for the nanny to help the user put on and take off pants.

[0033] 2. The armrests of existing transfer machines are all fixed, and the width between the two armrests cannot be adjusted, which limits the body shape of the user. However, the present invention can adjust the width between the left and right armrests through the armrest width adjustment mechanism to meet the needs of users of different body shapes, so that the two armrests are appropriately clamped under the armpits of the user, ensuring safety and comfort during the lifting process.

[0034] 3. The present invention has a height adjustment mechanism, and the height of the top rod can be adjusted according to different needs.

[0035] 4. The present invention realizes the armrest flipping and lifting action through the mutual cooperation of the armrest width adjustment mechanism, the lifting frame assembly, the sling and the rotating mechanism assembly, thereby realizing the conversion of the user between the lying position and the sitting position.

[0036] 5. The front end of the existing transfer machine adopts a small wheel with a diameter of less than 2.5 inches, which limits the transfer machine to walking on smooth ground and cannot pass through obstacles and grooves, causing inconvenience in movement. The present invention enables the transfer machine to pass through obstacles, grooves and other non-smooth roads through an auxiliary support wheel assembly.

[0037] 6. The present invention realizes 360° rotation of the seat plane through the load-bearing crossbeam assembly at the bottom of the seat, which is convenient for users to use when brushing teeth, washing face or eating, washing feet, doing leg exercises, etc. near a sink.

[0038] 7. The present invention can fold the armrest height adjustment mechanism and the walking wheel frame by using hinges, and at the same time, the two armrests can be flipped backwards 270 degrees to realize the overall folding of the transfer machine. After folding, the whole machine can be conveniently placed in the trunk of the vehicle and the size of the packaging box can be reduced.

[0039] 8. The present invention can lift a person weighing less than 200 kg by means of the cooperation of auxiliary support wheels, steel wire ropes, lifting frame assemblies, and hydraulic cylinders, thereby moving the person to a wheelchair or vehicle seat or cleaning the person's body after lifting him / her.

[0040] Based on the above reasons, the present invention can be widely promoted in the technical field of transfer machines and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0042] Figure 1 It is a schematic diagram of the structure of a multifunctional transfer machine in a specific implementation manner of the present invention.

[0043] Figure 2 It is a front view of a multifunctional transfer machine in a specific embodiment of the present invention.

[0044] Figure 3 It is a bottom view of a multifunctional transfer machine in a specific embodiment of the present invention.

[0045] Figure 4 It is a left view of a multifunctional transfer machine in a specific embodiment of the present invention.

[0046] Figure 5 It is a schematic structural diagram of the main column assembly in a specific implementation manner of the present invention.

[0047] Figure 6 It is a schematic structural diagram of a roller bearing assembly in a specific implementation manner of the present invention.

[0048] Figure 7 It is a structural schematic diagram of a lifting frame assembly in a specific implementation manner of the present invention.

[0049] Figure 8 It is a schematic structural diagram of a steel wire rope connection assembly in a specific implementation manner of the present invention.

[0050] Fig. 9 It is a schematic diagram of the overall appearance structure of the armrest width adjustment mechanism in a specific implementation manner of the present invention.

[0051] Fig.10 It is a structural schematic diagram of a telescopic unit in a specific implementation manner of the present invention.

[0052] Fig.11 for Fig.10 AA section view.

[0053] Fig.12 It is a three-dimensional stereogram of the telescopic unit in a specific implementation manner of the present invention.

[0054] Fig.13 It is a schematic structural diagram of a load-bearing crossbeam assembly at the bottom of a seat in a specific embodiment of the present invention.

[0055] Fig.14 This is a diagram showing the effect of the armrest flipping in a specific embodiment of the present invention.

[0056] Fig.15 This is a diagram showing the working effect of the auxiliary support wheel assembly and the lifting effect of the handrail in a specific implementation manner of the present invention.

[0057] Fig.16 This is a diagram showing the seat rotation effect in a specific embodiment of the present invention.

[0058] Fig.17 It is a folding effect diagram in a specific implementation manner of the present invention.

[0059] Fig.18 It is a schematic structural diagram of a multifunctional transfer machine with a handle in a specific embodiment of the present invention.

[0060] In the figure: 1. Travel wheel frame; 2. Front universal wheel; 3. Rear universal wheel with brake; 4. Hydraulic cylinder housing; 5. Hydraulic cylinder foot pedal; 6. Hydraulic cylinder control switch; 7. Hydraulic cylinder positioning clamp; 8. Ball head steel ball quick release pin; 9. Main column assembly; 9.1. Column; 9.2. Bushing; 9.3. Set screw; 9.4. Oil seal; 9.5. Hydraulic jack; 9.6. Adjusting screw; 10. Hollow push rod; 11. Roller bearing assembly; 11.1. Bearing bracket; 11.2. Cylindrical nut ; 11.3, roller bearing; 11.4, spacer; 11.5, bottom bolt; 12, lifting frame assembly; 12.1, lifting arm; 12.2, shaft; 12.3, pressure plate; 12.4, connecting piece; 12.5, cylindrical nut pin; 12.6, first U-shaped hook; 12.7, second U-shaped hook; 13, wire rope connection assembly; 13.1, U-shaped handle; 13.2, hook; 13.3, clamping bolt; 14, handrail width adjustment mechanism; 14.1, left telescopic arm; 1 4.2, right telescopic arm; 14.3, positive thread nut; 14.4, square tube nut plug; 14.5, reverse thread nut; 14.6, square tube inner plug; 14.7, outer sleeve; 14.8, positive and reverse thread screw; 14.9, U-shaped retaining ring; 14.10, drive shaft; 14.11, reducer; 14.12, nylon sleeve; 14.13, hexagon socket bolt; 14.14, screw; 15, crank; 16, steel ball quick release pin; 17, handrail; 18, spring limit pull pin; 19, connection 1. Auxiliary support wheel assembly; 20. Auxiliary support wheel assembly; 21. Change-of-direction pulley block; 22. Wire rope; 23. Seat bottom load-bearing beam assembly; 23.1. Load-bearing beam; 23.2. Guide sleeve; 23.3. Plug bolt; 23.4. Thrust bearing; 23.5. Spring locating pin; 23.6. Locking clamp; 23.7. Plastic pad; 24. Lifting gas rod assembly; 25. Bedpan; 26. Seat assembly; 27. Hinge; 28. Semicircular plate; 29. ​​Connecting plate; 30. Sleeve; 31. Pocket strap. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0063] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] like Figure 1-18 As shown, the present invention provides a multifunctional lifting machine, comprising a walking wheel frame 1;

[0065] The walking wheel frame 1 is U-shaped, and a front universal wheel 3 and a rear universal wheel 2 with brakes are respectively installed at the front bottom and the rear bottom.

[0066] An armrest lifting mechanism is provided in the middle of the rear portion of the traveling wheel frame 1, and a seat bottom load-bearing crossbeam assembly 23 is provided on the two front legs of the traveling wheel frame 1;

[0067] The armrest lifting mechanism includes a main column assembly 9, a roller bearing assembly 11, a lifting frame assembly 12 and a connecting plate 29;

[0068] like Figure 5As shown, the main column assembly 9 includes a housing, a lifting unit arranged in the housing, a push rod and a steel pipe arranged outside the push rod, the steel pipe is fixedly connected to the top of the housing; the bottom of the housing is connected to the walking wheel frame 1; in this embodiment, the lifting unit is a hydraulic jack 9.5, the housing is a hydraulic cylinder housing 4, the push rod is a hollow push rod 10, and the steel pipe is a seamless steel pipe 9.1; the hydraulic cylinder housing 4 is provided with a hydraulic cylinder foot pedal 5 and a hydraulic cylinder control switch 6 for driving the hydraulic jack 9.5 to work. Both sides of the hydraulic cylinder housing 4 are provided with hydraulic cylinder housing positioning clamps 7 installed on the walking wheel frame 1, the front side of the hydraulic cylinder housing 4 is hinged with the walking wheel frame 1 through a hinge 27, and the front side of the hydraulic cylinder housing 4 is provided with a ball head steel ball quick release pin 8. A shaft sleeve 9.2 is respectively arranged in the upper and lower ends of the seamless steel pipe 9.5, and the shaft sleeve 9.2 is fixed by a set screw 9.3, and an oil seal 9.4 is arranged at the upper end of the seamless steel pipe 9.5, and a hollow push rod 10 is arranged in the seamless steel pipe 9.1 and seamlessly slides with the shaft sleeve 9.2; nuts are respectively fixed at the upper and lower ends of the hollow push rod 10; an adjusting screw 9.6 is provided at the top (output end) of the hydraulic jack 9.5, a nut at the lower end of the hollow push rod 10 cooperates with the adjusting screw 9.6, and a nut at the upper end is connected with a bottom bolt 11.5 of a roller bearing assembly 11.

[0069] like Figure 6 As shown, the roller bearing assembly 11 includes a bearing bracket 11.1, and the bearing bracket 11.1 is provided with a cylindrical nut 11.2. Two roller bearings 11.3 are installed on the cylindrical nut 11.2. A spacer sleeve 11.4 is arranged between the roller bearings 11.3. The bottom of the bearing bracket 11.1 is connected with the upper nut of the hollow push rod 10 by a bottom bolt 11.5. The connection between the upper nut and the bottom bolt 11.5, the connection between the hollow push rod 10 and the bearing bracket 11.1, the connection between the hollow push rod 10 and the adjusting screw 9.6, and the connection between the lower nut and the adjusting screw 9.6 are all coated with 340 anaerobic glue and tightened. After the anaerobic adhesive dries, the roller bearing assembly 11, the hollow push rod 10 and the adjusting screw 9.6 can be fixed together (the average disassembly torque of 340 anaerobic adhesive is 15N / M, and the breaking force is 20N / M). When the roller bearing assembly 11 is rotated forward and backward, the hollow push rod 10 drives the adjusting screw 9.6 to rotate in and out of the jack cylinder piston, and the hollow push rod 10 can slide up and down in the sleeve 9.2. The adjusting screw 9.6 and the nut at the lower end, the hollow push rod 10 and the roller bearing assembly 11 form a height adjustment mechanism, which can adjust the height of the hollow push rod 10.

[0070] like Figure 7As shown, the lifting frame assembly 12 includes a lifting arm 12.1, a semicircular plate 28 is welded to the front end of the lifting arm, a shaft 12.2 is welded to the upper end of the semicircular plate 28, the front end of the shaft 12.2 has an internal thread, and three positioning holes are set on the semicircular plate 28 at horizontal and vertical positions. A pressure plate 12.3 with a pressure angle of 17° is welded below the lifting arm 12.1 and at the contact position of the roller bearing 11.3. This pressure plate 12.3 is used to keep the hollow push rod 10 from only bearing axial force during the up and down movement of the lifting arm 12.1. Two connecting pieces 12.4 are welded to the tail end of the lifting arm 12.1. The two connecting pieces 12.4 are connected to two connecting plates 29 welded to the outside of the seamless steel pipe 9.1 through a cylindrical nut pin 12.5, so as to convert the up and down reciprocating motion of the hollow push rod 10 into a circular arc motion of the lifting frame assembly 12 with the cylindrical nut pin 12.5 as the center. The top of the connecting piece 12.4 is provided with a first U-shaped hook opening upwards, and the upper front end of the lifting arm 12.1 is provided with a second U-shaped hook 12.7 opening forwards.

[0071] The front end of the shaft 12.2 is connected to an armrest rotating mechanism, which includes a connecting piece 19, and a spring limit pin 18 is provided at the bottom of the connecting piece 19, and the spring limit pin is rotatably matched with the front end of the shaft 12.2; the connecting piece 19 is fixedly connected to the armrest width adjustment mechanism 14, and the sleeve 30 is fixedly connected to the connecting piece 19. After the shaft is inserted into the sleeve 30, the spring limit pin 18 is pulled out, and the connecting piece 19 is rotated so that the spring limit pin 18 enters a positioning hole of the semicircular plate 28 after being turned to 90°, thereby limiting the position of the connecting piece 19.

[0072] like Figures 9 to 12As shown, the armrest width adjustment mechanism 14 comprises a left telescopic arm 14.1, one end of which is mounted with a positive thread nut 14.3, with plastic plates adhered to the four external sides, and a square tube nut plug 14.4 is embedded in the other end. A right telescopic arm 14.2, one end of which is mounted with a negative thread nut 14.5, with plastic plates adhered to the four external sides, and a square tube inner plug 14.6 is installed at the other end, and an outer sleeve 14.7 is provided with a positive and negative thread screw rod 14.8, a U-shaped retaining ring 14.9, a driving shaft 14.10, two plastic reducer sleeves 14.11, and a nylon sleeve 14.12; the bolt at one end of the driving shaft 14.10 is coated with 340 anaerobic glue and screwed into the internal threaded hole at one end of the positive and negative thread screw rod 14.8 to form a whole, and the other end of the driving shaft 14.10 is fixed with a hexagon socket bolt 14.13, U After the shaped retaining ring 14.9 is stuck on the intermediate shaft of the positive and negative threaded screw 14.8, it is fixed in the outer sleeve 14.7 with a screw 14.14. When the driving shaft 14.10 drives the positive and negative threaded screw 14.8 to rotate, the left telescopic arm 14.1 and the right telescopic arm 14.2 realize the telescopic function of the arm under the action of the positive threaded nut 14.3 and the negative threaded nut 14.5. The plastic plate glued on the four sides of the outer side of the telescopic arm has two functions of reducing the friction resistance during the telescopic process and preventing the telescopic arm from rotating in the outer sleeve. The left telescopic arm 14.1 and the right telescopic arm 14.2 are respectively installed with handrails 17 at the two outer ends. The positive and negative threaded rod 14.8, the negative threaded nut 14.5 and the positive threaded nut 14.3 form a telescopic unit, and the crank 15 is inserted into the inner hexagon of the inner hexagonal bolt 14.13 at the rear end of the driving shaft 14.10 through the hole of the square tube nut plug 14.4 at the rear end of the left telescopic arm 14.1 on the handrail width adjustment mechanism 14, and the crank 15 is rotated forward and reversely. At this time, when the driving shaft 14.10 drives the positive and negative threaded rod 14.8 to rotate, the left and right telescopic arms are extended or shortened at the same time, realizing the width change between the two handrails fixed on the left and right telescopic arms, and the change range is from 26 cm to 46 cm. After the handrail width is adjusted appropriately, the crank 15 is taken out and placed at the magnet of the hydraulic cylinder housing 4.

[0073] The left telescopic arm 14.1 and the right telescopic arm 14.2 are respectively hinged to the two handrails 17, and a limit block is provided at the hinge. The left telescopic arm 14.1 and the right telescopic arm 14.2 are respectively provided with an ear plate, and the end of the handrail 17 is hinged to the ear plate through a steel ball quick release pin 16, and a steel ball quick release pin 16 is also provided on the front upper part of the ear plate, which is used to limit the position of the handrail 17, and the limit block acts so that the handrail 17 can only rotate 270°.

[0074] An auxiliary support wheel assembly 20 is folded and placed in the two legs of the walking wheel frame 1. The auxiliary support wheel assembly 20 includes an auxiliary support wheel and a mounting member, and has a driving mechanism for driving the auxiliary support wheel assembly 20. The driving mechanism includes a wire rope 22, a direction-changing pulley group 21 and a wire rope connecting assembly 13. The auxiliary support wheel is rotatably connected to one end of the mounting member, and the other end of the mounting member is hinged to the bottom of the walking wheel frame; Figure 8 As shown, the wire rope connection assembly 13 includes a U-shaped handle 13.1, a hook 13.2 and two clamping bolts 13.3 installed inside the U-shaped handle 13.1, and the clamping bolts 13.3 respectively fix one end of two wire ropes 22 on both sides of the U-shaped handle 13.1. The other end of the wire rope 22 is fixedly connected to the mounting member through the change of direction of the change pulley block 21.

[0075] When the auxiliary support wheel assembly 20 is used, the hook 13.2 is placed in the second U-shaped hook 12.7, and when the hydraulic jack 9.5 drives the second U-shaped hook 12.7 to rise and fall, the steel wire rope 22 drives the auxiliary support wheel to fall; when the auxiliary support wheel assembly 20 is not used, the hook 13.2 is placed in the first U-shaped hook 12.6. By setting the auxiliary support wheel, the effect of passing obstacles can be achieved. The driving mechanism is combined with the handrail lifting mechanism to reduce the number of components.

[0076] like Fig.13 As shown, the load-bearing crossbeam assembly 23 at the bottom of the seat includes a load-bearing crossbeam 23.1, and holes are respectively provided at both ends and the middle of the load-bearing crossbeam 23.1. A guide sleeve 23.2 is provided in the hole at one end, and a 12.9-level plug bolt 23.3 is provided in the guide sleeve. A thrust bearing 23.4 is provided on the joint surface with the walking wheel frame 1 outside the hole. After being installed as one, the load-bearing crossbeam 23.1 can rotate in a plane on the walking wheel frame 1, and the plug bolt 23.3 can be fixed on the two legs of the walking wheel frame 1 respectively. A spring locating pin 23.5 is provided in the hole at the other end, and a locking clamp 23.6 is provided on the end face. A sound-absorbing and wear-resistant plastic pad 23.7 is fixed on the bottom face at the contact position with the walking wheel frame 1, and the middle hole is for installing a lifting gas rod assembly 24. The top of the lifting gas rod assembly 24 is rotatably connected to the seat assembly 26.

[0077] The seat assembly 26 includes a U-shaped seat cushion with a toilet hole and a toilet bowl 25 located at the bottom of the U-shaped seat cushion with a toilet hole.

[0078] A multifunctional lift has a carrying strap 31 which is hung on the armrest 17 when in use.

[0079] The armrest 17 has a concave portion, which matches the armpit of the user and can make the user more comfortable (such as Figure 1 The armrest 17 is provided with a vertically arranged handle, such as Fig.18 shown.

[0080] The multifunctional transfer machine disclosed in the present invention has the following functions:

[0081] Help the person to sit up from lying position: Fig.14 As shown, first, lay the sling 31 under the user, open the locking clamp 23.6 on the load-bearing crossbeam 23.1, pull the spring positioning pin 23.5, turn the seat assembly 26 to one side of the shifting machine, move the shifting machine to the front of the bed, lock the two rear universal wheels 3, turn the armrest 17 on the side close to the user's head 270°, pull out the spring limit pin 18 on the connecting piece 19, and turn the armrest 17 on the other side to the upper position through the armrest rotation mechanism. At this time, the spring limit pin 18 is inserted into The semicircular plate 28 is placed in the horizontal positioning hole, and the length of the pocket strap 31 is adjusted to be appropriate before hanging the pocket strap on the armrest 17 at the upper position. The shaft-like parts are inserted into the sleeve 30, and the armrest rotating mechanism is rotated to the horizontal position. The spring limit pin 18 is automatically inserted into the limit hole, and the pocket strap 31 is tightened to fix the user on the armrest 17. At this time, the pocket strap 31 functions as a safety belt. If the user is tall and the armrest 17 is used to lift the user to an incorrect sitting posture, the armrest lifting mechanism can be used to supplement the travel of the armrest 17.

[0082] Function of the initial height of the armrest from the ground: when the user is sitting, due to the different heights of the user, the height of the bed, the chair, the wheelchair, etc., the height of the user's armpit from the ground is different. It is necessary to first set the initial position of the armrest 17 to the height of the user's armpit. The setting method is to lift the lifting frame assembly 21 together with the armrest rotating mechanism at the same time. When the roller bearing assembly 11 is rotated, the hollow push rod 10 can slide up and down 2.5 cm in the shaft sleeve 9.2 of the main column assembly 9. When the hollow push rod 10 is in the lowest position, the lifting end of the armrest 17 is 70 cm above the ground. When the hollow push rod 10 is in the highest position, the lifting end of the armrest 17 is 83 cm above the ground (if it is used by one person, the initial position only needs to be adjusted once). After the initial position of the armrest 17 is set, the two armrests 17 are placed under the user's armpits.

[0083] Width adjustment function between the two armrests: Due to the different body shapes of different users, the width between the two armrests 17 needs to be adjusted before lifting the user. The two armrests 17 must be appropriately clamped under the user's armpits to ensure safety and comfort during the lifting process (warnings and instructions are posted in a conspicuous place on the lift). The basis for determining the adjustment range of the armrest width is based on the data obtained from the actual measurement of the armpit width of two groups of people weighing 50 kg and 100 kg, plus the adjustment decision for special circumstances. The middle group of people can be satisfied by the stepless adjustment of the armrest width. Insert the crank 15 through the hole of the square tube nut plug 14.4 at the rear end of the left telescopic arm 14.1 on the armrest width adjustment mechanism 14 into the hexagon of the hexagon socket bolt 14.13 at the rear end of the drive shaft 14.10, and rotate the crank 15 forward and reverse. At this time, when the drive shaft 14.10 drives the forward and reverse screw rods 14.8 to rotate, the left and right telescopic arms extend or shorten at the same time, realizing the change of the width between the two armrests 17 fixed on the left and right telescopic arms, and the change range is from 26 cm to 46 cm. After the width of the armrest 17 is adjusted appropriately, the crank 15 is taken out and placed at the magnet of the hydraulic cylinder housing 4, and the pocket belt 31 is wrapped around the user and connected to the two armrests 17 to play the role of a safety belt.

[0084] Function of lifting the user with the handrail: Place the wire rope connection assembly 13 in the first U-shaped hook 12.6 of the lifting frame assembly 12. Step on the hydraulic cylinder control switch 6 with your foot and rotate it clockwise to the limit point (marked on the box), then step on the hydraulic cylinder foot pedal 5 with your foot for several times (the hydraulic cylinder foot pedal 5 automatically returns to its original position under the action of the tension spring), when the output end of the hydraulic cylinder jack 9.5 extends, the hollow push rod 10 is driven to rise, and the lifting frame assembly 12 is lifted to make a circular motion with the cylindrical nut pin 12.4 as the center, and at this time, the two handrails 17 move upward to lift the user. The piston stroke of the hydraulic jack is 8.5 cm, the armrest 17 is 50 cm long, the armrest 17 and the lifting arm lever ratio is 5:1, when the hydraulic jack 9.5 pushes the hollow push rod 10 to rise 8.5 cm, the lifting end of the armrest 17 can reach 42.5 cm, and the pressure plate 12.3 supplements the hollow push rod 10 to rise by another 2 cm. The total lifting end of the armrest 17 can reach 52.5 cm, plus the initial height of the armrest 17 from the ground is 70 to 83 cm, which can realize the lifting of the demander to take off, put on pants, wash the whole body, and lift it to the car seat of different heights. At this time, the auxiliary support wheel does not move, the hydraulic jack 9.5 has a lifting force of 2 tons, and can actually lift the demander within 200 kg. The hydraulic jack 9.5 can stay at any position and self-lock to meet the different demanders in the process of taking off and putting on pants, wiping, and bathing and washing the lower body. The lifting and lowering of the hydraulic jack 9.5 can be completed by feet without bending over. When the handrail 17 needs to be lowered, the hydraulic cylinder control switch 6 is stepped on with a foot and rotated counterclockwise to a limit position. The handrail 17 can automatically fall back to the initial height of the setting under the effect of gravity.

[0085] The function of the lift to pass obstacles and tables below 15 cm: Fig.15 As shown, place the wire rope connection assembly 13 at the position of the second U-shaped hook 12.7 of the lifting frame assembly 12, step on the hydraulic cylinder control switch 6 with your foot and turn it clockwise to the limit point, then continue to step on the hydraulic cylinder foot pedal 5, the hollow jack 10 rises, and when the lifting arm assembly 12 is lifted, the wire rope 22 connected to the wire rope connection assembly 13 pulls the auxiliary support wheel assembly 20 downward through the change-direction pulley group 21 to support the two front universal wheels 2. At this time, the two handrails 17 are lifted at the same time. If the two handrails 17 do not need to be lifted at the same time, the two handrails 17 can be turned backward 270 degrees together. After the two front universal wheels 2 pass the obstacle, step on the hydraulic cylinder control switch 6 with your foot and turn it counterclockwise to the limit point, and the auxiliary support wheel assembly 20 returns to the starting position under the action of the return spring. The two rear universal wheels 3 are relatively large, and the rear wheels can pass obstacles less than 2 cm by themselves. When passing obstacles larger than 2 cm, you need to lift them with the help of the handle to pass. The center of gravity of the seat assembly 26 is close to the front wheel, which can reduce the force of lifting the rear wheel.

[0086] Use the seat load-bearing beam to drive the seat rotation function: Fig.16 As shown, the locking clamp 23.6 is opened, the spring positioning pin 23.5 is pulled up, and the seat assembly 26 is pushed to realize the rotation of the seat assembly 26 on the plane of the running wheel frame 1. When the seat assembly 26 returns to its original position, the spring positioning pin 23.5 is automatically inserted into the hole for positioning, and then the load-bearing crossbeam 23.1 is locked on the running wheel frame 1 by the locking clamp 23.6. The seat assembly 26 can rotate 360 ​​degrees on the load-bearing crossbeam 23.1. When the seat assembly 26 faces the direction of the rear universal wheel 3, the seat assembly 26 is raised by the lifting gas rod 24. The user can put his feet on the pedal of the running wheel frame 1. When the seat assembly 26 turns to the position of the front universal wheel 2, the user can brush his teeth, wash his face, and eat near the sink. After the seat is lowered, the user can wash his feet and do leg exercises.

[0087] Folding function of the whole machine: Fig.17 As shown, the two handrails 17 are set to flip backward 270°, and the ball head steel ball quick release pin 8 at the bottom of the hydraulic cylinder housing 4 is pulled out together with the main column assembly 9 with the hinge 27 as the axis, and then it is laid forward 90°. At this time, the limiting boss on the hydraulic cylinder housing positioning clamp 7 blocks the two limiting hooks at the bottom of the hydraulic cylinder housing 4. The ball head steel ball quick release pin 8 is inserted into the hole above the hydraulic cylinder positioning clamp 7, and the whole machine is folded. The whole machine can be easily placed in the trunk of the vehicle, and the size of the packaging box can be reduced.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional transfer machine, characterized in that: include: A walking wheel frame, used for moving the transfer machine; An auxiliary support wheel assembly disposed at the bottom of the walking wheel frame and a driving mechanism for driving the auxiliary support wheel assembly to rise and fall; The auxiliary support wheel assembly comprises an auxiliary support wheel and a mounting member, wherein the auxiliary support wheel is rotatably connected to one end of the mounting member, and the other end of the mounting member is hinged to the bottom of the walking wheel frame; The auxiliary support wheel assembly is lifted and lowered by the driving mechanism; When the auxiliary support wheel assembly falls, the front universal wheel of the traveling wheel frame is lifted up to a certain height and then passes over the obstacle.

2. The multifunctional lift according to claim 1, characterized in that: The driving mechanism includes a steel wire rope, a direction-changing pulley block and a steel wire rope connecting assembly, and the steel wire rope connecting assembly includes a U-shaped handle; one end of the steel wire rope is fixedly connected to one end of the mounting member close to the auxiliary support wheel, and the other end is fixedly connected to the U-shaped handle after changing direction through the direction-changing pulley block.

3. The multifunctional lift according to claim 2, characterized in that: The driving mechanism drives the wire rope connection assembly to rise and fall through the lifting unit, thereby driving the auxiliary support wheel to fall or rise.

4. The multifunctional lift according to claim 3, characterized in that: The lifting unit is a hydraulic jack arranged in the housing of the main column, and the steel wire rope is lifted and lowered by the hydraulic jack to drive the lifting arm to work.

5. The multifunctional lift according to claim 1, characterized in that: It also includes an armrest lifting mechanism, the bottom of which is connected to one side of the walking wheel frame, and the top of which is connected to the armrest rotating mechanism.

6. The multifunctional lift according to claim 5, characterized in that: The armrest rotating mechanism is connected to the armrest width adjusting mechanism, and the armrest rotating mechanism is used to rotate the armrest width adjusting mechanism.

7. The multifunctional lift according to claim 6, characterized in that: The armrest width adjustment mechanism is used to adjust the distance between the armrests arranged at both ends to match the body width of the user, and includes an outer sleeve and a left telescopic arm and a right telescopic arm arranged at both ends of the outer sleeve. The left telescopic arm and the right telescopic arm can move toward or away from each other through a telescopic unit.

8. The multifunctional lift according to claim 7, characterized in that: The left telescopic arm and the right telescopic arm are respectively connected to the two armrests through a hinge structure, and a limit block is arranged at the hinge to limit the rotation angle of the armrest.

9. The multifunctional lift according to claim 1, characterized in that: It also includes a seat assembly, which is rotatably connected to the walking wheel frame through a support rod, and the support rod includes a lifting gas rod for adjusting the height of the seat.

10. The multifunctional lift according to claim 9, characterized in that: The seat assembly includes a seat bottom load-bearing crossbeam assembly, one end of which is rotatably connected to the travel wheel frame, and the other end is provided with a spring locating pin, and the travel wheel frame is provided with a mounting hole that cooperates with the spring locating pin.

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