A highly comfortable intelligent wheelchair

Abstract

The present invention discloses a highly comfortable intelligent wheelchair, comprising a wheelchair frame, a cushion, a backboard, a first electric push rod, a second electric push rod, a breathable cushion and a lumbar pillow. The wheelchair frame is provided with a cushion, which is fixedly mounted on a seat board fixing rod. The right side of the wheelchair frame is provided with a backboard, the lower part of the backboard is fixedly connected to the wheelchair frame through a first fixing seat, the side of the middle part of the backboard is fixedly connected to the wheelchair frame through a first electric push rod, the left side of the wheelchair frame is provided with a pedal frame, a foot pedal and a leg pad are installed on the pedal frame, a breathable cushion is installed on the upper part of the cushion, and a lumbar pillow is installed on the backboard. The present invention solves the problems of inconvenient adjustment of the backrest, feet and legs, poor air permeability of the cushion, easy to produce a stuffy feeling, soreness and weakness of the waist after sitting for a long time, and very fatigue of the person by providing the wheelchair frame, cushion, backboard, first electric push rod, second electric push rod, breathable cushion and lumbar pillow.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent wheelchairs, and in particular to an intelligent wheelchair with high comfort. Background Art

[0002] Wheelchairs and similar conveyances remain a critical component in allowing individuals to maintain mobility with injuries or medical conditions that prevent or make walking more difficult. While many standard wheelchair designs work adequately, they often have many disadvantages for the user. For example, manually applying force to the wheels of a wheelchair is often not the most efficient way for the user to exert force. In another example, a small front wheel and fixed footrests make it difficult for a user to roll over raised objects, such as street curbs. Improving the design of conventional wheelchairs in some or all of the above aspects could greatly enhance the user experience and enjoyment.

[0003] However, the existing technology has the following shortcomings:

[0004] 1. The backrest is fixed on the wheelchair frame, and the support plates for the feet and calves are fixedly installed, which is not convenient for adjustment according to actual usage requirements;

[0005] 2. In summer or when the weather is hot, users will feel stuffy if they sit for a long time, and the buttocks are not breathable and will feel damp, which is very uncomfortable for people who often sit in wheelchairs;

[0006] 3. After sitting in a wheelchair for a long time, the waist will be sore and weak, and the person will be very tired. Usually people put their fists on the waist to massage themselves, but the accuracy and strength of hand massage cannot last long. Therefore, it is necessary to design a waist massage device to massage the waist and provide long-lasting and accurate waist care. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the present invention provides a highly comfortable intelligent wheelchair, which solves the problems that the backrest, feet and legs are difficult to adjust, the seat cushion has poor air permeability and is prone to stuffiness, and the waist will become sore and weak after sitting for a long time, and the person will also be very tired.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an intelligent wheelchair with high comfort, comprising a wheelchair frame, a seat cushion, a backboard, a first electric push rod, a second electric push rod, a breathable seat cushion and a lumbar pillow, the wheelchair frame being provided with a seat cushion, the seat cushion being fixedly mounted on a seat board fixing rod, the right side of the wheelchair frame being provided with a backboard, the lower portion of the backboard being fixedly connected to the wheelchair frame through a first fixing seat, the side edge of the middle portion of the backboard being fixedly connected to the wheelchair frame through a first electric push rod, the left side of the wheelchair frame being provided with a footrest frame, the footrest frame being provided with a foot pedal and a leg pad, the upper end of the footrest frame being fixedly connected to the wheelchair frame through a connecting seat, the middle portion of the footrest frame being fixedly connected to the wheelchair frame through a second electric push rod, the upper portion of the seat cushion being provided with a breathable seat cushion, the lower portion of the breathable seat cushion being provided with a bottom frame, the upper portion of the bottom frame being provided with a top frame, the top frame being fixedly connected to the bottom frame through a supporting column, An elastic mesh is installed on the frame, an exhaust fan is installed on the bottom frame, the exhaust fan is fixedly connected to the connecting rod on the bottom frame through a second fixing seat, an exhaust pipe is installed at the lower part of the exhaust fan, a second battery is installed between the exhaust fans, and a frequency converter is installed on the right side of the second battery. Fixed foot plates are installed on the left and right sides of the lower part of the bottom frame, fixing bolts are installed on the fixed foot plates, a lumbar pillow is installed on the back plate, a binding belt is installed on the outside of the rear side of the lumbar pillow, a first side protection protrusion is provided on the left side of the lumbar pillow, a second side protection protrusion is provided on the right side of the lumbar pillow, an intermediate protrusion is provided on the lumbar pillow between the first side protection protrusion and the second side protection protrusion, a fixed mounting plate is installed inside the lumbar pillow, a first vibrator is installed on the fixed mounting plate, a side plate is installed on the fixed mounting plate, a second vibrator is installed on the side plate, and the lumbar pillow is filled with a filling silicone pillow core.

[0011] Preferably, an armrest pad is installed at the middle position of the upper part of the wheelchair frame, and the armrest pad is fixedly connected to the wheelchair frame, the upper end of the wheelchair frame is horizontally bent to the right and is provided with a push handle, a battery is installed at the middle position of the lower part of the wheelchair frame, the battery is electrically connected to the first electric push rod and the second electric push rod through a conductive wire, the wheelchair frames are fixedly connected through a connecting sleeve, a front small wheel is installed at the lower part of the wheelchair frame, the front small wheel is fixedly connected to the wheelchair frame through a small wheel frame, and the front small wheel is rotatably connected to the small wheel frame, a rear large wheel is installed on the wheelchair frame on the right side of the front small wheel, the rotating shaft provided on the rear large wheel is fixedly installed on the wheelchair frame through a mounting seat, and the rotating shaft on the rear large wheel is rotatably connected to the mounting seat, and a push ring is installed on the rear large wheel.

[0012] Preferably, the lower part of the backrest is rotatably connected to the first fixed seat through a placement pin. The middle part of the side of the backrest is rotatably connected to the lower end of the first electric push rod through a placement pin. The upper end of the first electric push rod is fixedly connected to the wheelchair frame through a pin seat, and the upper end of the first electric push rod is rotatably connected to the pin seat through a placement pin.

[0013] Preferably, the upper end of the footrest is rotatably connected to the connecting seat through a placement pin. The middle part of the footrest is rotatably connected to the upper end of the second electric push rod through a placement pin. The lower end of the second electric push rod is fixedly connected to the wheelchair frame through a pin seat, and the lower end of the second electric push rod is rotatably connected to the pin seat through a placement pin. The foot pedal is fixedly connected to the footrest through a first fixing sleeve. The leg pad is fixedly connected to the footrest through a second fixing sleeve, and a soft cushion layer is provided on the upper surface of the leg pad.

[0014] Preferably, the bottom frame is in a "□" shape, the top frame is in a "匚" shape, the four corners of the bottom frame and the top frame are fixedly connected through support columns, and a front strut is installed between the support columns at the lower part of the front side of the top frame.

[0015] Preferably, the elastic mesh cloth is laid flat on the top frame. The parts where the elastic mesh cloth contacts the top frame are fixedly connected to the top frame through fixing rivets, and rubber pads are provided at the parts where the elastic mesh cloth contacts the top frame.

[0016] Preferably, an air inlet is provided at the upper part of the exhaust fan. A motor is installed inside the exhaust fan. The motor is fixedly connected to the inner wall of the exhaust fan through a motor fixing bracket. A fan blade is installed on the output shaft of the motor. The air outlet provided at the lower part of the exhaust fan is communicated with one end of the exhaust pipe through a pipe connection seat. The second battery and the frequency converter are both fixedly connected to the bottom frame. The second battery is electrically connected to the exhaust fan through a conducting wire. The frequency converter is connected in series on the conducting wire between the second battery and the exhaust fan. The frequency converter is electrically connected to the first control switch.

[0017] Preferably, the fixed foot plate is in a "┝" shape. The fixed bolt is placed on the bolt hole provided on the fixed foot plate, and the fixed bolt is threadedly connected to the bolt hole. The fixed foot plate is provided with a fixing hole, and the fixed foot plate is fixedly connected to the bottom frame.

[0018] Preferably, the outside of the lumbar pillow is wrapped with an outer mesh cloth. One end of the binding strap is fixedly connected to the outer mesh cloth, and the outer mesh cloth fits with the filled silicone pillow core.

[0019] Preferably, the fixed placement plate is fixedly connected to the side plate, a reinforcement side plate is installed between the fixed placement plate and the side plate, the fixed placement plate and the side plate form a C-shaped internal frame, a third battery is installed at the middle position of the fixed placement plate, the third battery is electrically connected to the charging socket, the charging socket is fixedly connected to the fixed placement plate, and the charging socket extends to the outside of the external mesh cloth, the first vibrator is fixedly connected to the fixed placement plate, the second vibrator is fixedly connected to the side plate, a massage column is installed on the inner side of the first vibrator and the second vibrator near the lumbar pillow, the first vibrator and the second vibrator are both electrically connected to the third battery through a conductive wire, a second control switch is connected in series on the conductive wire between the third battery and the first vibrator and the second vibrator, and the second control switch is electrically connected to the conductive wire through the control wire.

[0020] (III) Beneficial effects

[0021] The present invention provides a highly comfortable intelligent wheelchair, which has the following beneficial effects:

[0022] (1) The present invention, through the provision of a backrest, a first electric push rod, a footrest, a leg pad and a second electric push rod, during use, the user directly sits on the seat cushion of the wheelchair, then steps his feet on the footrest, places his calf on the leg pad, and then the user leans on the backrest on the wheelchair frame. When the user needs to adjust the position of the backrest, the user directly turns on the first electric push rod through the provision of a switch, and the first electric push rod operates to push the backrest to rotate to a suitable position on the first fixed seat. Then the first electric push rod is stopped to fix the backrest at the position for use. When the user needs to adjust the position of the footrest and the leg pad, the user directly turns on the second electric push rod through the provision of a switch, and the second electric push rod operates to push the footrest frame to rotate on the connecting seat. The second electric push rod can be used to push the backrest to rotate and adjust the position of the backrest. The foot pedal and the leg pad are rotatably connected to the wheelchair frame through the foot pedal frame, and the second electric push rod can be used to push the foot pedal frame to rotate and adjust the position of the backrest. The foot pedal and the leg pad are rotatably connected to the wheelchair frame through the foot pedal frame, and the position of the foot pedal and the leg pad is adjusted by pushing the foot pedal frame to rotate. The adjustment method of the backrest, foot pedal and leg pad is simple and convenient, and the structure is simple and easy to operate. It is easy to use and has strong practicality. It is easy to promote and use, and solves the problem that the backrest is fixed on the wheelchair frame, and the support plates for the feet and calves are fixedly installed, which is not convenient for debugging according to actual usage needs.

[0023] (2) The present invention, through the elastic mesh cloth, exhaust fan, exhaust pipe, second storage battery, inverter and first control switch, can directly place the breathable cushion on the seat cushion of the wheelchair in summer or when the weather is hot, then screw the fixing bolts on the fixed foot plate, the fixing bolts are tightly pressed against the wheelchair under the action of screwing, so that the breathable cushion is fixed to the wheelchair, and the exhaust pipe on the exhaust fan is placed along the bottom frame to the side of the wheelchair. When the user sits on the elastic mesh cloth on the upper part of the breathable cushion and feels stuffy, the user directly presses the button switch on the first control switch by hand, and then the second control switch is turned on. The battery transmits power to the exhaust fan, and the motor inside the exhaust fan drives the fan blades to rotate to extract the stuffy gas under the elastic mesh cloth, and discharge it to the lower part of the wheelchair through the exhaust pipe. When stuffiness occurs, the exhaust fan is used to extract the stuffy gas and discharge it to avoid the accumulation of stuffy gas and causing the user's buttocks to feel stuffy, which greatly improves the comfort of using the wheelchair. The structure is simple, easy to use, and practical. It solves the problem that users will feel stuffy after sitting for a long time in summer or when the weather is hot, and the buttocks are not breathable and feel damp, which is very uncomfortable for people who often sit in wheelchairs.

[0024] (3) The present invention, through the provision of elastic mesh cloth, the elastic mesh cloth installed on the frame can completely fit the user's buttocks when the user sits on the wheelchair, thereby improving the user's comfort when sitting in the wheelchair. The elastic mesh cloth also greatly improves the air permeability of the seat cushion, effectively reducing the generation of stuffiness. The structure is simple and easy to use.

[0025] (4) The present invention, through the provision of a lumbar pillow, a binding belt, a third battery, a first vibrator, a second vibrator and a second control switch, can directly bind the lumbar pillow with the binding belt to the lumbar position at the lower part of the wheelchair backrest when the user needs to sit for a long time. When the user feels sore in the waist while sitting on the wheelchair, the user directly presses the switch button on the second control switch with his hand, and then the third battery transmits power to the first vibrator and the second vibrator, and the first vibrator and the second vibrator are powered on and run. The operation of the first vibrator and the second vibrator drives the massage column to vibrate and massage the user's waist, thereby accelerating the blood circulation in the user's waist. In addition, according to the user's actual use needs, different button switches on the second control switch are pressed to start the vibrators in different parts. When the user's waist is sore, the vibrator drives the massage column to vibrate and massage the waist. Through massage, the blood circulation in the waist is accelerated, the fatigue of the waist is relieved, and the comfort of wheelchair use is improved. This solves the problem that people usually massage themselves by clenching their fists on their waists, but the accuracy and strength of hand massage cannot be sustained.

[0026] (5) The present invention, through the provision of a lumbar pillow, a first side protection protrusion, a second side protection protrusion and a middle protection protrusion, makes the entire lumbar pillow placed on the wheelchair backrest fit perfectly with the user's waist, wrap the user's waist, provide support for the user's waist, and support the user's waist through the lumbar pillow, thereby alleviating the user's waist pain caused by sitting in the wheelchair and improving the user's comfort level in the wheelchair. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 For the present invention Figure 1 The structural diagram of the wheelchair frame;

[0029] Figure 3 For the present invention Figure 1 Schematic diagram of the installation of the mid-foot pedal and leg pad;

[0030] Figure 4 For the present invention Figure 1 Schematic diagram of the structure of the medium breathable seat cushion;

[0031] Figure 5 For the present invention Figure 4 The structural diagram of the middle frame;

[0032] Figure 6 For the present invention Figure 4 Structural diagram of the middle exhaust fan;

[0033] Figure 7 For the present invention Figure 4 Schematic diagram of the structure of the fixed foot plate;

[0034] Figure 8 For the present invention Figure 1 Schematic diagram of the structure of the mid-lumbar pillow;

[0035] Fig. 9 For the present invention Figure 8 A schematic diagram of the placement of the first vibrator and the second vibrator;

[0036] Fig.10 For the present invention Figure 8 Schematic diagram of the oblique structure of the mid-lumbar pillow.

[0037] The accompanying drawings are marked as follows: 1, wheelchair frame; 2, seat cushion; 3, seat plate fixing rod; 4, connecting sleeve; 5, armrest cushion; 6, hand push handle; 7, backboard; 8, first fixed seat; 9, first electric push rod; 10, shaft pin seat; 11, footrest frame; 12, connecting seat; 13, footrest; 14, leg pad; 15, second electric push rod; 16, front small wheel; 17, small wheel frame; 18, battery; 19, rear large wheel; 20, mounting seat; 21, hand push ring; 22, breathable seat cushion; 23, lumbar pillow; 24, first fixed sleeve; 25, second fixed sleeve; 26, shaft pin placement; 27, bottom frame; 28, top frame; 29, support column; 30, elastic mesh; 31, fixing rivet; 32, fixing footboard; 33, fixing bolt; 34 , exhaust fan; 35, second fixing seat; 36, exhaust pipe; 37, second battery; 38, inverter; 39, first control switch; 40, front support rod; 41, connecting rod; 42, motor; 43, fan blade; 44, motor fixing bracket; 45, air inlet; 46, pipe connecting seat; 47, fixing hole; 48, bolt hole; 49, binding belt; 50, external mesh; 51, first side protection protrusion; 52, second side protection protrusion; 53, middle protrusion; 54, filled with silicone pillow core; 55, fixed placement plate; 56, side plate; 57, reinforcement side plate; 58, third battery; 59, charging jack; 60, first vibrator; 61, second vibrator; 62, second control switch; 63, massage column; 64, control line. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0039] See also Figure 1-10As shown in the figure, an embodiment provided by the present invention; an intelligent wheelchair with high comfort, including a wheelchair frame 1, a seat cushion 2, a backrest 7, a first electric push rod 9, a second electric push rod 15, a breathable seat cushion 22 and a lumbar pillow 23. A seat cushion 2 is installed on the wheelchair frame 1, and the seat cushion 2 is fixedly installed on the seat board fixing rod 3. A backrest 7 is installed on the right side of the wheelchair frame 1. The lower part of the backrest 7 is rotationally connected to the first fixed seat 8 through a placement pin 26. The middle part of the side of the backrest 7 is rotationally connected to the lower end of the first electric push rod 9 through a placement pin 26. The upper end of the first electric push rod 9 is fixedly connected to the wheelchair frame 1 through a pin seat 10, and the upper end of the first electric push rod 9 is rotationally connected to the pin seat 10 through a placement pin 26. The lower part of the backrest 7 is fixedly connected to the wheelchair frame 1 through the first fixed seat 8. The side of the middle part of the backrest 7 is fixedly connected to the wheelchair frame 1 through the first electric push rod 9. A footrest frame 11 is installed on the left side of the wheelchair frame 1. A footrest 13 and a leg pad 14 are installed on the footrest frame 11. The upper end of the footrest frame 11 is rotationally connected to the connecting seat 12 through a placement pin 26. The middle part of the footrest frame 11 is rotationally connected to the upper end of the second electric push rod 15 through a placement pin 26. The lower end of the second electric push rod 15 is fixedly connected to the wheelchair frame 1 through a pin seat 10, and the lower end of the second electric push rod 15 is rotationally connected to the pin seat 10 through a placement pin 26. The footrest 13 is fixedly connected to the footrest frame 11 through a first fixing sleeve 24. The leg pad 14 is fixedly connected to the footrest frame 11 through a second fixing sleeve 25, and a soft cushion layer is arranged on the upper surface of the leg pad 14. The upper end of the footrest frame 11 is fixedly connected to the wheelchair frame 1 through the connecting seat 12. The middle part of the footrest frame 11 is fixedly connected to the wheelchair frame 1 through the second electric push rod 15. A storage battery 18 is installed at the middle position of the lower part of the wheelchair frame 1. The storage battery 18 is electrically connected to the first electric push rod 9 and the second electric push rod 15 through a conducting wire. The models of the first electric push rod 9 and the second electric push rod 15 are HTA2800, and an opening and closing switch is provided for each electric push rod, which is the prior art. The wheelchair frames 1 are fixedly connected through a connecting sleeve 4. A breathable seat cushion 22 is installed on the upper part of the seat cushion 2. A bottom frame 27 is arranged at the lower part of the breathable seat cushion 22. A top frame 28 is installed on the upper part of the bottom frame 27. The top frame 28 is fixedly connected to the bottom frame 27 through a support column 29. The bottom frame 27 is in a "□" shape, and the top frame 28 is in a "匚" shape. The four corners of the bottom frame 27 and the top frame 28 are fixedly connected through support columns 29. A front support rod 40 is installed between the support columns 29 at the lower part of the front side of the top frame 28. An elastic mesh cloth 30 is installed on the top frame 28. The elastic mesh cloth 30 is laid flat on the top frame 28. The parts where the elastic mesh cloth 30 contacts the top frame 28 are fixedly connected to the top frame 28 through fixing rivets 31. Rubber pads are arranged at the parts where the elastic mesh cloth 30 contacts the top frame 28. An air extraction fan 34 is installed on the bottom frame 27. The air extraction fan 34 is fixedly connected to the connecting rod 41 on the bottom frame 27 through a second fixed seat 35.An exhaust pipe 36 is installed at the lower part of the exhaust fan 34, an air inlet 45 is provided at the upper part of the exhaust fan 34, a motor 42 is installed inside the exhaust fan 34, the model of the motor 42 is MB057GE, which is the prior art, the motor 42 is fixedly connected to the inner wall of the exhaust fan 34 through a motor fixing frame 44, a fan blade 43 is installed on the output shaft of the motor 42, the air outlet provided at the lower part of the exhaust fan 34 is connected to one end of the exhaust pipe 36 through a pipe connecting seat 46, a second battery 37 is installed between the exhaust fans 34, and a frequency converter 38 is installed on the right side of the second battery 37, and the model of the frequency converter 38 is ACS 510, which is a prior art, the second battery 37 and the inverter 38 are both fixedly connected to the bottom frame 27, the second battery 37 is electrically connected to the exhaust fan 34 through a conductive wire, the inverter 38 is connected in series to the conductive wire between the second battery 37 and the exhaust fan 34, the inverter 38 is electrically connected to the first control switch 39, the left and right sides of the lower part of the bottom frame 27 are both installed with fixed foot plates 32, the fixed foot plates 32 are installed with fixing bolts 33, the fixed foot plates 32 are in a "┝" shape, the fixing bolts 33 are placed on the bolt holes 48 set on the fixed foot plates 32, and the fixing bolts 33 are connected to the bolt holes 48 is threadedly connected, the fixed foot plate 32 is provided with a fixing hole 47, and the fixed foot plate 32 is fixedly connected to the bottom frame 27, a lumbar pillow 23 is installed on the back plate 7, the outside of the lumbar pillow 23 is wrapped with an external mesh 50, one end of a binding belt 49 is fixedly connected to the external mesh 50, the external mesh 50 is matched with a filled silicone pillow core 54, a binding belt 49 is installed on the outside of the rear side of the lumbar pillow 23, a first side protection protrusion 51 is provided on the left side of the lumbar pillow 23, a second side protection protrusion 52 is provided on the right side of the lumbar pillow 23, and the lumbar pillow 23 between the first side protection protrusion 51 and the second side protection protrusion 52 is provided. 3 is provided with a middle protrusion 53, a fixed placement plate 55 is installed inside the lumbar pillow 23, a first vibrator 60 is installed on the fixed placement plate 55, a side plate 56 is installed on the fixed placement plate 55, a second vibrator 61 is installed on the side plate 56, the first vibrator 60 is fixedly connected to the fixed placement plate 55, the second vibrator 61 is fixedly connected to the side plate 56, a massage column 63 is installed on the inner side of the first vibrator 60 and the second vibrator 61 near the lumbar pillow 23, the first vibrator 60 and the second vibrator 61 are both electrically connected to the third battery 58 through a conductive wire, and the second control switch Three control button switches are arranged on 62, which correspond to the second vibrator 61 on the left and right side panels 56 and the first vibrator 60 on the fixed placement plate 55 respectively. The first vibrator 60 and the second vibrator 61 are described in detail in the invention entitled: A Cool and Comfortable Car Seat Cushion, Publication No.: CN205871806U, Publication No.: 2017-01-11. They are existing known public technologies, so no further elaboration is made. A second control switch 62 is connected in series on the conductive line between the third battery 58 and the first vibrator 60 and the second vibrator 61.The second control switch 62 is electrically connected to the conductive wire through the control line 64, the fixed placement plate 55 is fixedly connected to the side plate 56, a reinforcing side plate 57 is installed between the fixed placement plate 55 and the side plate 56, the fixed placement plate 55 and the side plate 56 form a C-shaped internal frame, a third battery 58 is installed at the middle position of the fixed placement plate 55, the third battery 58 is electrically connected to the charging socket 59, the charging socket 59 is fixedly connected to the fixed placement plate 55, and the charging socket 59 extends to the outside of the external mesh 50, the lumbar pillow 23 is filled with a filled silica gel pillow core 54, according to an adjustable Smart wheelchair, an armrest cushion 5 is installed at the middle position of the upper part of the wheelchair frame 1, and the armrest cushion 5 is fixedly connected to the wheelchair frame 1. The upper end of the wheelchair frame 1 is horizontally bent to the right and provided with a push handle 6. The lower part of the wheelchair frame 1 is installed with a front small wheel 16, and the front small wheel 16 is fixedly connected to the wheelchair frame 1 through a small wheel frame 17, and the front small wheel 16 is rotatably connected to the small wheel frame 17. A rear large wheel 19 is installed on the wheelchair frame 1 on the right side of the front small wheel 16. The rotating shaft set on the rear large wheel 19 is fixedly installed on the wheelchair frame 1 through a mounting seat 20, and the rotating shaft on the rear large wheel 19 is rotatably connected to the mounting seat 20, and a push ring 21 is installed on the rear large wheel 19.

[0040] Working principle: During use, the user directly sits on the seat cushion 2 of the wheelchair, then steps his feet on the footrest 13, and places the calf on the leg pad 14. Then the user leans on the backrest 7 on the wheelchair frame 1. When the user needs to adjust the position of the backrest 7, the user directly turns on the first electric push rod 9 through the set switch. The first electric push rod 9 runs to push the backrest 7 to rotate to a suitable position on the first fixed seat 8. Then the first electric push rod 9 is stopped to fix the backrest 7 at this position for use. When the user needs to adjust the position of the footrest 13 and the leg pad 14 When the user is in a state of sitting for a long time, the lumbar pillow 23 is directly tied and fixed to the waist position of the lower part of the backrest of the wheelchair with the binding belt 49. When the user feels sore in the waist while sitting on the wheelchair, the user directly presses the second control switch 6 by hand. 2, then the third storage battery 58 transmits power to the first vibrator 60 and the second vibrator 61, the first vibrator 60 and the second vibrator 61 are powered on and run, the first vibrator 60 and the second vibrator 61 run to drive the massage column 63 to vibrate and massage the user's waist, accelerate the blood circulation of the user's waist, and press different button switches on the second control switch 62 according to the actual use needs of the user, so as to start the vibrators of different parts. In summer or when the weather is hot, the breathable cushion 22 is directly placed on the cushion 2 of the wheelchair, and then the fixed foot plate 32 is screwed. The bolt 33 is fixed against the wheelchair when it is twisted, thereby fixing the breathable cushion 22 to the wheelchair, and placing the exhaust pipe 36 on the exhaust fan 34 along the bottom frame 27 to the side of the wheelchair. When the user feels stuffy when sitting on the elastic mesh 30 on the upper part of the breathable cushion 22, the user directly presses the button switch on the first control switch 39 by hand, and then the second battery 37 transmits power to the exhaust fan 34. The motor 42 inside the exhaust fan 34 drives the fan blades 43 to rotate to extract the stuffy gas under the elastic mesh 30, and discharge it to the lower part of the wheelchair through the exhaust pipe 36.

[0041] In summary, the present invention solves the problems of inconvenient adjustment of the backrest, feet and legs, poor air permeability of the seat cushion, easy to produce stuffy feeling, soreness and weakness of the waist and fatigue after sitting for a long time through the arrangement of the wheelchair frame 1, seat cushion 2, backrest 7, first electric push rod 9, second electric push rod 15, breathable seat cushion 22 and lumbar pillow 23.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly comfortable intelligent wheelchair, comprising a wheelchair frame (1), a seat cushion (2), a backrest (7), a first electric push rod (9), a second electric push rod (15), a breathable seat cushion (22) and a lumbar pillow (23), characterized in that: The wheelchair frame (1) is provided with a seat cushion (2), the seat cushion (2) being fixedly mounted on a seat plate fixing rod (3); a backrest (7) is provided on the right side of the wheelchair frame (1), the lower part of the backrest (7) being fixedly connected to the wheelchair frame (1) via a first fixing seat (8); the side of the middle part of the backrest (7) being fixedly connected to the wheelchair frame (1) via a first electric push rod (9); a footrest (11) is provided on the left side of the wheelchair frame (1), a foot pedal (13) and a leg pad (14) being provided on the footrest (11), and the upper end of the footrest (11) being connected to the wheelchair via a connecting seat (12). The wheelchair frame (1) is fixedly connected to the pedal frame (1), the middle part of the pedal frame (11) is fixedly connected to the wheelchair frame (1) via a second electric push rod (15), a breathable cushion (22) is installed on the upper part of the seat cushion (2), a bottom frame (27) is provided at the lower part of the breathable cushion (22), a top frame (28) is installed on the upper part of the bottom frame (27), the top frame (28) is fixedly connected to the bottom frame (27) via a support column (29), an elastic mesh (30) is installed on the top frame (28), an exhaust fan (34) is installed on the bottom frame (27), and the exhaust fan (34) is connected to the bottom frame (27) via a second fixed seat. (35) is fixedly connected to the connecting rod (41) on the bottom frame (27), an exhaust pipe (36) is installed at the lower part of the exhaust fan (34), a second storage battery (37) is installed between the exhaust fans (34), a frequency converter (38) is installed on the right side of the second storage battery (37), fixed foot plates (32) are installed on the left and right sides of the lower part of the bottom frame (27), fixing bolts (33) are installed on the fixed foot plates (32), a lumbar pillow (23) is installed on the back plate (7), a binding belt (49) is installed on the outside of the rear side of the lumbar pillow (23), and a first A side protection protrusion (51), a second side protection protrusion (52) is arranged on the right side of the waist pillow (23), an intermediate protrusion (53) is arranged on the waist pillow (23) between the first side protection protrusion (51) and the second side protection protrusion (52), a fixed placement plate (55) is installed inside the waist pillow (23), a first vibrator (60) is installed on the fixed placement plate (55), a side plate (56) is installed on the fixed placement plate (55), a second vibrator (61) is installed on the side plate (56), and the waist pillow (23) is filled with a silicone pillow core (54);An armrest cushion (5) is installed at the middle position of the upper part of the wheelchair frame (1), and the armrest cushion (5) is fixedly connected to the wheelchair frame (1). The upper end of the wheelchair frame (1) is horizontally bent to the right and is provided with a push handle (6). A storage battery (18) is installed at the middle position of the lower part of the wheelchair frame (1), and the storage battery (18) is electrically connected to the first electric push rod (9) and the second electric push rod (15) through a conductive wire. The wheelchair frames (1) are fixedly connected to each other through a connecting sleeve (4). The lower end of the wheelchair frame (1) is A front small wheel (16) is installed on the wheelchair frame (1), the front small wheel (16) is fixedly connected to the wheelchair frame (1) through a small wheel frame (17), and the front small wheel (16) is rotatably connected to the small wheel frame (17), a rear large wheel (19) is installed on the wheelchair frame (1) on the right side of the front small wheel (16), a rotating shaft provided on the rear large wheel (19) is fixedly installed on the wheelchair frame (1) through a mounting seat (20), and the rotating shaft on the rear large wheel (19) is rotatably connected to the mounting seat (20), and a hand push ring (21) is installed on the rear large wheel (19). ; 2. The intelligent wheelchair with high comfort according to claim 1, characterized in that: The lower part of the backrest (7) is rotatably connected to the first fixed seat (8) through a mounting pin (26). The middle part of the side of the backrest (7) is rotatably connected to the lower end of the first electric push rod (9) through a mounting pin (26). The upper end of the first electric push rod (9) is fixedly connected to the wheelchair frame (1) through a pin seat (10), and the upper end of the first electric push rod (9) is rotatably connected to the pin seat (10) through a mounting pin (26).

3. The intelligent wheelchair with high comfort according to claim 1, characterized in that: The upper end of the footrest (11) is rotatably connected to the connecting seat (12) through a mounting pin (26). The middle part of the footrest (11) is rotatably connected to the upper end of the second electric push rod (15) through a mounting pin (26). The lower end of the second electric push rod (15) is fixedly connected to the wheelchair frame (1) through a pin seat (10), and the lower end of the second electric push rod (15) is rotatably connected to the pin seat (10) through a mounting pin (26). The foot pedal (13) is fixedly connected to the footrest (11) through a first fixing sleeve (24). The leg pad (14) is fixedly connected to the footrest (11) through a second fixing sleeve (25), and a soft cushion layer is provided on the upper surface of the leg pad (14).

4. The intelligent wheelchair with high comfort according to claim 1, characterized in that: The bottom frame (27) is in the shape of a "□", the top frame (28) is in the shape of a "匚", and the four corners of the bottom frame (27) and the top frame (28) are fixedly connected through support columns (29). A front strut (40) is installed between the support columns (29) at the lower part of the front side of the top frame (28).

5. The intelligent wheelchair with high comfort according to claim 1, characterized in that: The elastic mesh cloth (30) is laid flat on the top frame (28). The parts where the elastic mesh cloth (30) contacts the top frame (28) are fixedly connected to the top frame (28) through fixing rivets (31). Rubber pads are provided at the parts where the elastic mesh cloth (30) contacts the top frame (28).

6. The intelligent wheelchair with high comfort according to claim 1, characterized in that: An air inlet (45) is provided at the upper part of the exhaust fan (34). A motor (42) is installed inside the exhaust fan (34). The motor (42) is fixedly connected to the inner wall of the exhaust fan (34) through a motor fixing bracket (44). A fan blade (43) is installed on the output shaft of the motor (42). The air outlet provided at the lower part of the exhaust fan (34) is communicated with one end of an exhaust pipe (36) through a pipe connection seat (46). The second battery (37) and the frequency converter (38) are both fixedly connected to the bottom frame (27). The second battery (37) is electrically connected to the exhaust fan (34) through a conducting wire. The frequency converter (38) is connected in series on the conducting wire between the second battery (37) and the exhaust fan (34). The frequency converter (38) is electrically connected to the first control switch (39).

7. The intelligent wheelchair with high comfort according to claim 1, characterized in that: The fixed foot plate (32) is in the shape of a "┝". The fixed bolt (33) is placed in a bolt hole (48) provided on the fixed foot plate (32), and the fixed bolt (33) is threadedly connected to the bolt hole (48). The fixed foot plate (32) is provided with a fixing hole (47), and the fixed foot plate (32) is fixedly connected to the bottom frame (27).

8. The intelligent wheelchair with high comfort according to claim 1, characterized in that: The outside of the waist pillow (23) is wrapped with an external mesh cloth (50), one end of the binding belt (49) is fixedly connected to the external mesh cloth (50), and the external mesh cloth (50) fits with the pillow core (54) filled with silica gel.

9. The intelligent wheelchair with high comfort according to claim 1, characterized in that: The fixed placement plate (55) is fixedly connected to the side plate (56); a reinforcing side plate (57) is installed between the fixed placement plate (55) and the side plate (56); the fixed placement plate (55) and the side plate (56) form a C-shaped internal frame; a third storage battery (58) is installed at a middle position of the fixed placement plate (55); the third storage battery (58) is electrically connected to a charging socket (59); the charging socket (59) is fixedly connected to the fixed placement plate (55); and the charging socket (59) extends to the outside of the external mesh cloth (50); the first vibrator (60) is connected to the fixed placement plate (55); The placement plate (55) is fixedly connected, the second vibrator (61) is fixedly connected to the side plate (56), a massage column (63) is installed on the inner side of the first vibrator (60) and the second vibrator (61) near the lumbar pillow (23), the first vibrator (60) and the second vibrator (61) are both electrically connected to the third battery (58) through a conductive line, a second control switch (62) is connected in series on the conductive line between the third battery (58) and the first vibrator (60) and the second vibrator (61), and the second control switch (62) is electrically connected to the conductive line through a control line (64).

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