A hand-pushing wheelchair that is easy to separate a person from a chair

Abstract

The present invention discloses a hand-pushed wheelchair which is convenient for separating a person from a chair and relates to the technical field of wheelchairs, comprising a frame rod, a rear seat and a transmission assembly; the frame rod is correspondingly provided with two front and rear ends, a frame plate is evenly provided between the two frame rods, and a rotating shaft is symmetrically rotatably connected on both sides between the two frame rods, a pedal is provided on the bottom surface of the frame rod located at the front side, supports are symmetrically provided on both sides of the bottom surface of the pedal, the side surface of the support is rotatably connected with the front wheel, and telescopic rods are symmetrically provided at both ends of the frame rod located at the rear side, and one end of the telescopic rod away from the frame rod is rotatably connected with the rear wheel, a supporting assembly is provided on the upper side of the frame rod, the rear seat is provided on the side surface of the frame rod located at the rear side, and the two ends of the rear seat are symmetrically rotatably connected with the connecting seats. The hand-pushed wheelchair which is convenient for separating a person from a chair can effectively avoid the restrictions of the armrests and the backrests on both sides, and the patient can be conveniently lifted up and out of the wheelchair, and the practicability is strong.

Description

Technical Field

[0001] The invention relates to the technical field of wheelchairs, in particular to a hand-pushed wheelchair that is convenient for separating a person from the wheelchair. Background Art

[0002] A wheelchair is a chair with wheels that can help replace walking. It is an important means of transportation for the injured, sick, and disabled for home rehabilitation, turnover transportation, medical treatment, and outdoor activities. It not only meets the transportation needs of the physically disabled and people with limited mobility, but more importantly, it is convenient for family members to move and take care of the patients, so that the patients can use the wheelchair to exercise and participate in social activities. Among them, hand-pushed wheelchairs are widely used. For patients who cannot move their hands and feet when using a hand-pushed wheelchair, they need manpower to carry the patient down from the wheelchair when they want to leave the wheelchair. However, due to the limitations of the armrests on both sides and the rear backrest, it is difficult to carry a paralyzed patient, and the wheelchair is easy to move during the process of carrying it, which increases the difficulty. For this reason, we propose a hand-pushed wheelchair that is easy to separate the person from the chair. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a hand-pushed wheelchair that is easy to separate from the chair and can effectively avoid the limitations of the armrests and backrests on both sides. The patient can be conveniently lifted out of the wheelchair, which is highly practical and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hand-pushing wheelchair that is convenient for separating a person from a chair, comprising a frame rod, a rear seat and a transmission assembly;

[0005] The frame rods are provided with two corresponding front and rear parts, frame plates are evenly arranged between the two frame rods, and a rotating shaft is symmetrically rotatably connected on both sides between the two frame rods, a pedal is provided on the bottom surface of the frame rod on the front side, and supports are symmetrically arranged on both sides of the bottom surface of the pedal, and the side surfaces of the supports are rotatably connected to the front wheels, and telescopic rods are symmetrically arranged at both ends of the frame rod on the rear side, and the end of the telescopic rod away from the frame rod is rotatably connected to the rear wheel, and a support assembly is provided on the upper side of the frame rod;

[0006] The rear seat is arranged on the side of the frame rod at the rear side, and the two ends of the rear seat are symmetrically rotatably connected with a connecting seat, the top of the connecting seat is provided with a back plate, the top of the side of the back plate is provided with a handle, and the rear seat is provided with a driving assembly;

[0007] The transmission assembly includes a ring seat, a support rod, a wedge block, a vertical rod and a base. The ring seat is symmetrically fixed and sleeved on the rotating shafts on both sides. The support rod is arranged on the top of the ring seat, the support rod is arranged on the top of the support rod, and the wedge block is arranged on the side of the ring seat. The wedge block is perpendicular to the support rod, and the bottom surface of the wedge block is in contact with the surface of the frame plate.

[0008] Furthermore, the transmission assembly also includes a vertical pole and a base, the vertical pole is arranged on the bottom side of the ring seat, there is an angle between the vertical pole and the support rod, and the base is arranged at the bottom end of the vertical pole. The transmission assembly can use the rotating shafts on both sides to rotate outward respectively, which can drive the handrails on both sides to rotate outward, and then the handrails on both sides can be unfolded to facilitate the extension of the arms. At the same time, the inclined vertical pole is transformed into a vertical state, and the frame pole can be supported by the erected vertical pole to prevent the wheelchair from moving during the lifting process.

[0009] Furthermore, the supporting assembly includes a limit rod, a baffle, a top plate, a vertical plate, a seat plate and a spring, the limit rod corresponding to the surface of the frame rod on the front and rear sides, the baffle is arranged at the top end of the limit rod, the two ends of the top plate are respectively movably connected to the limit rods on the front and rear sides, and the bottom surface of the top plate cooperates with the inclined surface of the wedge block, the vertical plate is arranged on the surface of the top plate, and the seat plate is arranged at the top end of the vertical plate, and the spring is connected to the limit rod at a position between the baffle and the top plate. In the process of the handrail expanding outward, the top plate can be pushed up by utilizing the cooperation between the wedge block and the top plate, and the spring is compressed, so that the seat plate can be supported upward, thereby driving the patient to rise upward, making it convenient to lift the patient.

[0010] Furthermore, it also includes a pin hole and a pin rod, the pin hole is opened at a position corresponding to the limiting hole on the side surface of the connecting seat and the end surface of the seat plate, and the pin rod corresponds to the pin hole. The pin rod can limit the back plate during normal use by correspondingly cooperating with the pin hole and the limiting hole.

[0011] Furthermore, the driving assembly includes a bottom rod, a cross plate, a rack, a gear and a screw. The bottom rod is arranged on the bottom surface of the rear seat, the cross plate is movably sleeved on the bottom rod, the racks are symmetrically arranged at both ends of the cross plate, the gears are symmetrically fixedly sleeved on the ends of the rotating shafts on both sides, the gears are meshed with the racks, the screw is rotatably connected to the bottom surface of the rear seat, and the screw is threadedly connected to the threaded hole in the middle of the cross plate. The driving assembly can realize the upward movement of the cross plate by rotating the screw, thereby driving the racks on both sides to move upward, and the racks are meshed with the gears to realize the outward rotation of the rotating shafts on both sides.

[0012] Furthermore, it also includes a side seat and a push plate, the side seat is arranged at the bottom of the side of the back plate, the push plate is arranged on the surface of the seat plate, and the top surface of the push plate is in contact with the bottom surface of the side seat. After the pin rod is pulled out, the seat plate rises upward, and the side plate can be extended outward by utilizing the corresponding cooperation of the side seat and the push plate, which is more conducive to lifting the patient.

[0013] Furthermore, the telescopic rod includes a tube seat, a guide rod and a stud. The tube seat is arranged at the end of the frame rod on the rear side, the guide rod is slidably fitted in the tube seat, and the stud is threadedly connected to the threaded hole on the side of the end of the tube seat. Before driving the handrail to unfold outward, the stud can be loosened first to extend the guide rod so that the rear wheel is away from the handrail to avoid interfering with the unfolding of the handrail.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the hand-pushing wheelchair that is easy to separate a person from a chair has the following advantages:

[0015] 1. The driving assembly of the hand-pushed wheelchair that is easy to separate a person from a chair can realize the upward movement of the cross plate by rotating the screw rod, thereby driving the racks on both sides to move upward. The racks are meshed with the gears, so that the rotating shafts on both sides can be rotated outward respectively, and at the same time drive the handrails on both sides to rotate outward, so that the handrails on both sides can be unfolded to facilitate the extension of the arms. At the same time, the inclined vertical poles are transformed into a vertical state, and the frame poles can be supported by the erected vertical poles to prevent the wheelchair from moving during the lifting process.

[0016] 2. The support assembly of the hand-pushing wheelchair that is easy to separate a person from a chair can use the cooperation of the wedge block and the top plate to push the top plate upward when the handrail is unfolded outward, and the spring is compressed, so that the seat plate can be supported upward, thereby driving the patient to rise upward, making it convenient to pick up the patient.

[0017] 3. After the pin rod is pulled out, the hand-pushed wheelchair that is easy to separate from the chair can raise the seat plate upwards, and the backrest plate can be extended outwards by using the corresponding cooperation of the side seat and the push plate, which is more conducive to lifting the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the bottom structure of the present invention;

[0021] Figure 4 It is a schematic diagram of the telescopic rod structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0023] In the figure: 1 frame rod, 11 frame plate, 12 rotating shaft, 13 pedal, 14 support, 15 front wheel, 16 telescopic rod, 161 cylinder seat, 162 guide rod, 163 stud, 17 rear wheel, 2 transmission assembly, 21 ring seat, 22 support rod, 23 handrail, 24 wedge, 25 vertical rod, 26 base, 201 rear seat, 202 connecting seat, 203 back plate, 204 handle, 3 support assembly, 31 limit rod, 32 baffle, 33 top plate, 34 vertical plate, 35 seat plate, 36 spring, 4 pin hole, 41 pin rod, 5 drive assembly, 51 bottom rod, 52 cross plate, 53 rack, 54 gear, 55 screw, 6 side seat, 61 push plate. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 , this embodiment provides a technical solution: a hand-pushing wheelchair that is easy to separate a person from a chair, comprising a frame rod 1, a rear seat 201 and a transmission assembly 2;

[0026] Two frame rods 1 are correspondingly provided at the front and rear, frame plates 11 are evenly provided between the two frame rods 1, and the two sides between the two frame rods 1 are symmetrically rotatably connected with a rotating shaft 12, a pedal 13 is provided on the bottom surface of the frame rod 1 on the front side, and supports 14 are symmetrically provided on both sides of the bottom surface of the pedal 13, and the side surfaces of the supports 14 are rotatably connected with a front wheel 15, and telescopic rods 16 are symmetrically provided at both ends of the frame rod 1 on the rear side, and the telescopic rod 16 includes a cylinder seat 161, a guide rod 162 and a stud 163, the cylinder seat 161 is provided at the end of the frame rod 1 on the rear side, the guide rod 162 is slidably fitted in the cylinder seat 161, and the stud 163 is threadedly connected to the threaded hole on the side of the end of the cylinder seat 161, and the telescopic rod 16 is symmetrically provided at both ends of the frame rod 1 on the rear side. The end of the rod 16 away from the frame rod 1 is rotatably connected to the rear wheel 17. The upper side of the frame rod 1 is provided with a support assembly 3, which includes a limit rod 31, a baffle 32, a top plate 33, a vertical plate 34, a seat plate 35 and a spring 36. The limit rod 31 is correspondingly arranged on the surface of the frame rod 1 on the front and rear sides, the baffle 32 is arranged on the top of the limit rod 31, and the two ends of the top plate 33 are movably sleeved on the limit rods 31 on the front and rear sides respectively, and the bottom surface of the top plate 33 cooperates with the inclined surface of the wedge block 24, the vertical plate 34 is arranged on the surface of the top plate 33, the seat plate 35 is arranged on the top of the vertical plate 34, and the spring 36 is sleeved on the limit rod 31 between the baffle 32 and the top plate 33;

[0027] The rear seat 201 is arranged on the side of the frame rod 1 located at the rear side, and the two ends of the rear seat 201 are symmetrically rotatably connected with the connecting seat 202, the top of the connecting seat 202 is provided with a back plate 203, and the top of the side of the back plate 203 is provided with a handle 204. The rear seat 201 is provided with a driving assembly 5, and the driving assembly 5 includes a bottom rod 51, a cross plate 52, a rack 53, a gear 54 and a screw 55. The bottom rod 51 is arranged on the bottom surface of the rear seat 201, and the cross plate 52 is movably sleeved on the bottom rod 51. The rack 53 is symmetrically arranged at the two ends of the cross plate 52, and the gear 54 is symmetrically fixedly sleeved on the ends of the rotating shaft 12 on both sides. The gear 54 is meshed with the rack 53, and the screw 55 is rotatably connected to the bottom surface of the rear seat 201, and the screw 55 is threadedly connected to the threaded hole in the middle of the cross plate 52;

[0028] The transmission assembly 2 includes a ring seat 21, a support rod 22, a lever 23, a wedge 24, a vertical rod 25 and a base 26. The ring seat 21 is symmetrically fixed and sleeved on the rotating shaft 12 on both sides. The support rod 22 is arranged at the top of the ring seat 21, the lever 23 is arranged at the top of the support rod 22, the wedge 24 is arranged on the side of the ring seat 21, the wedge 24 is perpendicular to the support rod 22, and the bottom surface of the wedge 24 is in contact with the surface of the frame plate 11. The transmission assembly 2 also includes a vertical rod 25 and a base 26. The vertical rod 25 is arranged on the bottom side of the ring seat 21, and there is an angle between the vertical rod 25 and the support rod 22. The base 26 is arranged at the bottom end of the vertical rod 25.

[0029] Among them: it also includes a pin hole 4 and a pin rod 41, the pin hole 4 is opened at a position corresponding to the limiting hole on the side of the connecting seat 202 and the end face of the seat plate 35, and the pin rod 41 corresponds to the pin hole 4; it also includes a side seat 6 and a push plate 61, the side seat 6 is arranged at the bottom of the side of the back plate 203, the push plate 61 is arranged on the surface of the seat plate 35, and the top surface of the push plate 61 is in contact with the bottom surface of the side seat 6.

[0030] Pull out the pin 41, loosen the stud 163, extend the guide rod 162, move the rear wheel 17 away from the handrail 23, and rotate the screw 55 to realize the upward movement of the cross plate 52, thereby driving the racks 53 on both sides to move upward. The racks 53 are meshed with the gears 54, so that the rotating shafts 12 on both sides can be rotated outward respectively, and at the same time, the handrails 23 on both sides are driven to rotate outward, so that the handrails 23 on both sides can be unfolded to facilitate the extension of the arms.

[0031] The working principle of the hand-pushing wheelchair provided by the present invention, which is convenient for separating a person from a chair, is as follows: when it is necessary to lift a patient off the wheelchair, the pin 41 is first pulled out, the stud 163 is loosened, the guide rod 162 is extended, the rear wheel 17 is moved away from the handrail 23, and the screw 55 is rotated to realize the upward movement of the cross plate 52, thereby driving the racks 53 on both sides to move upward, and the racks 53 are meshed with the gear 54, so that the rotating shafts 12 on both sides can be rotated outward respectively, and at the same time, the handrails 23 on both sides are driven to rotate outward, so that the handrails 23 on both sides can be unfolded to facilitate the extension of the arms. At the same time, the inclined vertical rod 25 is transformed into a vertical state, and the frame rod 1 can be supported by the upright vertical rod 25 to prevent the wheelchair from moving during the lifting process. In the process of the handrail 23 being expanded outward, the top plate 33 can be pushed up by the cooperation of the wedge block 24 and the top plate 33, and the spring 36 is compressed, so that the seat plate 35 can be supported upward, thereby driving the patient to rise upward, making it convenient to lift the patient. When the seat plate 35 rises upward, the side seat 6 and the push plate 61 can be used to cooperate with each other to extend the back plate 203 outward, which is more conducive to lifting the patient.

[0032] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hand-pushing wheelchair that facilitates separation of a person from a chair, characterized in that: It includes a frame rod, a rear seat and a transmission assembly; The frame rods are provided with two corresponding front and rear parts, frame plates are evenly arranged between the two frame rods, and a rotating shaft is symmetrically rotatably connected on both sides between the two frame rods, a pedal is provided on the bottom surface of the frame rod on the front side, and supports are symmetrically arranged on both sides of the bottom surface of the pedal, and the side surfaces of the supports are rotatably connected to the front wheels, and telescopic rods are symmetrically arranged at both ends of the frame rod on the rear side, and the end of the telescopic rod away from the frame rod is rotatably connected to the rear wheel, and a support assembly is provided on the upper side of the frame rod; The rear seat is arranged on the side of the frame rod at the rear side, and the two ends of the rear seat are symmetrically rotatably connected with a connecting seat, the top of the connecting seat is provided with a back plate, the top of the side of the back plate is provided with a handle, and the rear seat is provided with a driving assembly; The transmission assembly includes a ring seat, a support rod, a wedge block, a vertical rod and a base. The ring seat is symmetrically fixedly sleeved on the rotating shafts on both sides. The support rod is arranged on the top of the ring seat, the support rod is arranged on the top of the support rod, and the wedge block is arranged on the side of the ring seat. The wedge block is perpendicular to the support rod, and the bottom surface of the wedge block is in contact with the surface of the frame plate. The support assembly includes a limit rod, a baffle, a top plate, a vertical plate, a seat plate and a spring. The limit rod is correspondingly arranged on the surface of the frame rod on the front and rear sides, the baffle is arranged at the top end of the limit rod, the two ends of the top plate are respectively movably connected to the limit rods on the front and rear sides, and the bottom surface of the top plate cooperates with the inclined surface of the wedge block, the vertical plate is arranged on the surface of the top plate, the seat plate is arranged on the top end of the vertical plate, and the spring is connected to the limit rod between the baffle and the top plate.

2. A hand-pushed wheelchair that facilitates separation of a person from a chair according to claim 1, characterized in that: The transmission assembly also includes a vertical rod and a base. The vertical rod is arranged on the bottom side of the ring seat. There is an angle between the vertical rod and the support rod. The base is arranged at the bottom end of the vertical rod.

3. A hand-pushed wheelchair that facilitates separation of a person from a chair according to claim 1, characterized in that: The support assembly also includes a pin hole and a pin rod. The pin hole is arranged at a position corresponding to the limiting hole on the side surface of the connecting seat and the end surface of the seat plate, and the pin rod corresponds to the pin hole.

4. A hand-pushed wheelchair that facilitates separation of a person from a chair according to claim 1, characterized in that: The driving assembly includes a bottom rod, a cross plate, a rack, a gear and a screw. The bottom rod is arranged on the bottom surface of the rear seat, the cross plate is movably sleeved on the bottom rod, the rack is symmetrically arranged at both ends of the cross plate, the gear is symmetrically fixedly sleeved on the ends of the rotating shafts on both sides, the gear is meshed with the rack, the screw is rotatably connected to the bottom surface of the rear seat, and the screw is threadedly connected to the threaded hole in the middle of the cross plate.

5. The hand-pushing wheelchair that facilitates separation of a person from a chair according to claim 1, characterized in that: The support assembly also includes a side seat and a push plate. The side seat is arranged at the bottom of the side surface of the back plate, and the push plate is arranged on the surface of the seat plate, and the top surface of the push plate is in contact with the bottom surface of the side seat.

6. The hand-pushing wheelchair that facilitates separation of a person from a chair according to claim 1, characterized in that: The telescopic rod comprises a cylinder seat, a guide rod and a stud. The cylinder seat is arranged at the end of the frame rod at the rear side. The guide rod is slidably fitted in the cylinder seat. The stud is threadedly connected in a threaded hole on the side of the cylinder seat end.

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