CN110742743A

CN110742743A - All-terrain electric wheelchair

Info

Publication number: CN110742743A
Application number: CN201911096304.1A
Authority: CN
Inventors: 杨尚清
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-02-04

Abstract

The invention discloses an all-terrain electric wheelchair, which comprises a main bearing frame, wherein a gravity center detection system is arranged on the main bearing frame, a rotary seat is arranged above the gravity center detection system, a control rod is connected onto the seat, a pedal is arranged on the seat by being connected with a pedal supporting frame, a storage battery is arranged on the main bearing frame, a motor is arranged on the inner side of the main bearing frame, the motor is connected with a universal joint, the universal joint is connected with a spiral wheel set, and the spiral wheel set is fixed on the main bearing frame. According to the invention, the wheel is changed into the spiral wheel set through the design of the wheel of the wheelchair, the wheelchair can be used on various terrains, the control of the vehicle can be carried out through the matching of four groups or multiple groups of spiral wheel sets, and meanwhile, the wheelchair can safely go up and down stairs by matching with the adjustment of the gravity center detection system, is safer and more stable in traveling, and is more convenient for users to use.

Description

All-terrain electric wheelchair

Technical Field

The invention relates to the field of rehabilitation equipment, in particular to an all-terrain electric wheelchair.

Background

Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair not only meets the requirements of physical disabilities and mobility-handicapped people for riding instead of walking, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair.

Wheelchairs on the market are various, and can be divided into aluminum alloy, light materials and steel according to materials, for example, the wheelchairs can be divided into common wheelchairs and special wheelchairs according to types, and the special wheelchairs can be divided into the following parts: the motion modes of the wheelchair series are wheel type and crawler type basically.

Wheel type motion has just decided its walking road surface to be level road surface basically, and its walking road surface condition of crawler-type motion is wider, both can climb stair also can walk on level road surface, but its operation is more loaded down with trivial details, especially when climbing stair and meetting complicated road conditions, the wheelchair that has crawler-type removal simultaneously is not simple only the track either, also contains the wheel.

Basically, a user of a wheelchair on the market can not go out independently, and can go out normally only by taking 1-3 individuals as assistance, so that manpower, material resources and financial resources are wasted, certain psychological pressure is brought to the user, and the user feels a burden.

Disclosure of Invention

The invention aims to provide an all-terrain electric wheelchair which has a simple operation method and high walking efficiency, can adapt to various road environments, enables a patient to independently walk outdoors and reduces the need of accompanying personnel.

In order to achieve the purpose, the invention provides an all-terrain electric wheelchair, which comprises a control rod, a rotary seat, a pedal plate, a main bearing frame, a lifting motor, a storage battery, a spiral wheel set, a universal joint connector and a motor, wherein the control rod is connected with the rotary seat through a connecting rod; the device is characterized in that the spiral wheel set comprises a wheel set support, a spiral wheel shaft, an outer spiral structure, an inner spiral structure, a rolling belt mechanism and a crawler-type wheel set protection device, the universal joint connector is connected with the spiral wheel shaft, the spiral wheel shaft is arranged in the wheel set support, the wheel set support is fixed on the main bearing frame, the spiral wheel shaft is provided with the inner spiral mechanism and the outer spiral mechanism, the outer sides of the inner spiral mechanism and the outer spiral mechanism are rolling belt mechanisms, the outer side of the wheel set support is fixedly connected with a crawler-type wheel set protection device.

Further, the thread pitch of the inner spiral mechanism and the outer spiral mechanism is between 0MM and 300MM, the spiral diameter is between phi 40 MM and phi 400MM, and the overall spiral length is between 150 MM and 600 MM.

Furthermore, joint points are arranged at two ends of the spiral wheel shaft of the inner spiral mechanism and the outer spiral mechanism, holes for the inner spiral mechanism to pass through are formed in the outer spiral mechanism, the whole spiral mechanism is made to form a closed-loop and recyclable mechanism in a three-dimensional space, and the outer edges of the inner spiral mechanism and the outer spiral mechanism are of inwards-concave or outwards-convex slideway type structures.

Furthermore, the rolling belt mechanism completely wraps the outer sides of the outer spiral structure and the inner spiral structure, and the rolling belt mechanism is in sliding clearance fit with the inner spiral structure and the outer spiral structure and can generate relative motion.

Further, the rolling belt mechanism may be a single closed loop rolling belt with a slide.

Furthermore, the rolling belt mechanism can be formed by combining a plurality of sliding blocks with sliding ways and a closed-loop rolling belt, and the sliding blocks and the closed-loop rolling belt are uniformly distributed on the outer sides of the outer spiral mechanism and the inner spiral mechanism.

Furthermore, the spiral wheel sets are symmetrically distributed at the bottoms of the left side and the right side of the wheelchair.

Furthermore, the lifting motor is connected between the gravity center detection system and the main bearing frame, and the gravity center detection system controls the lifting motor to act so as to keep the stability of the gravity center.

Furthermore, the seat horizontal rotating device can enable the seat to rotate by 0-90 degrees around the Z-axis center of the wheelchair, and a self-locking structure is arranged in the device and can be self-locked when the seat rotates to a specified angle.

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

the invention replaces the original wheels by designing a new wheel set, is suitable for all-terrain driving, is matched with a gravity center adjusting system, can more comfortably and safely drive when going up and down a slope or going up and down stairs, and can separate the connection of the motor and the universal joint connector by rotating the seat when the storage battery is not electrified, thereby being convenient for the pushing of accompanying personnel.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is a perspective view of the helical wheel assembly of the present invention.

In the figure: 1. a control lever; 2. rotating the seat; 21. pushing the handrail; 22. a seat armrest; 23. a pedal support frame; 24. a seat horizontal rotation device; 3. a foot pedal; 31. a crawler unit; 4. a main carrier; 5. A center of gravity detection system; 6. a lifting motor; 7. a storage battery; 8. a helical wheel set; 81. a wheel set bracket; 82 a helical axle; 821. an external screw mechanism; 822. an internal screw mechanism; 83. a rolling belt mechanism; 84. a crawler-type wheel set protection device; 9. a universal joint connector; 10. electric machine

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an all-terrain electric wheelchair includes a control lever 1, a rotary seat 2, a pedal 3, a main bearing frame 4, a gravity center detection system 5, a lifting motor 6, a battery 7, a spiral wheel set 8, a universal joint connector 9, and a motor 10; the main bearing frame 4 bears the weight of the wheelchair, the storage battery 7 is arranged on the main bearing frame 4, the motor 10 is arranged in the main bearing frame 4, the motor 10 is connected with the universal joint connector 9, the universal joint connector 9 is connected with the spiral wheel shaft 82, the spiral wheel shaft 82 is arranged on the wheel set support 81, the wheel set support 81 is fixed on the main bearing frame 4, the spiral wheel shaft 82 is provided with an inner spiral mechanism 822 and an outer spiral mechanism 821, the rolling belt mechanism 83 is arranged on the outer sides of the inner spiral mechanism 822 and the outer spiral mechanism 821, the rolling belt mechanism 83 on the outer spiral mechanism 821 is connected with the ground, then the outer spiral mechanism 821 is driven to rotate through the spiral wheel shaft 82, the outer spiral mechanism 821 and the rolling belt mechanism 83 realize relative motion, the inner spiral mechanism 822 is responsible for withdrawing and circularly rotating the rolling belt mechanism 83, therefore, the motion of the wheelchair is realized, and the outer side of the wheel set, the protection device is used for protecting the wheel set and preventing the wheel set from being damaged at a step.

The focus detecting system 5 is installed to 4 tops of owner bearing frame, still be connected with elevator motor 6 between focus detecting system 5 and the owner bearing frame 4, be used for centrobaric adjustment, be seat horizontal rotating device 24 in focus detecting system 5 top, rotatory seat 2 is connected to wheelchair horizontal rotating device 24 top, rotatory seat both sides are equipped with armrest 22, install control lever 1 on one side armrest, a control for the wheelchair action, be equipped with the handrail 21 that carries out on the wheelchair back, make things convenient for the attendant to carry out the implementation, be connected with this support frame 23 of pedal in the bottom of rotatory seat 2, be connected with crawler attachment 31 on the running-board support frame 23, running-board 3 is installed to the survey in the crawler attachment 31.

The working process is as follows: the movement of the all-terrain electric wheelchair is described by taking stair climbing as an example.

The user controls control lever 1 and traveles the wheelchair to the stair step before, when continuing to travel, step and the contact of the crawler attachment 31 on the running-board 3, the track can slide, simultaneously because crawler attachment 31 is hard device, make track and step relative motion, force the front end of wheelchair to lift up, the action of elevator motor 6 can be controlled according to centrobaric position to the in-process focus detecting system 5 module that the wheelchair lifted up, elevator motor is connecting the rear end of wheelchair base, control the height of wheelchair seat rear end, let the wheelchair seat overturn along the front end fixed axle, until user's focus is in safe within range.

When the vehicle continues to drive upwards, the spiral wheel set 8 is in contact with the steps and moves forwards in a screwing mode, at the moment, the crawler wheel set protection device 84 in the spiral wheel set 8 can support the edges of the steps, and the edges of the steps cannot be in partial contact with the inner spiral mechanism 822, so that the traveling obstruction cannot be caused. When the spiral wheel set 8 at the front end is suspended when being lifted up, the power for the wheelchair to move forwards is provided by the spiral wheel set 8 at the rear end until the spiral wheel set 8 at the front end is contacted with the steps to recover to normally drive, and when the spiral wheel set 8 at the rear end is suspended, the power is provided by the spiral wheel set 8 at the front end until the spiral wheel set 8 at the rear end is contacted with the steps to recover to normally drive. If the spiral wheel set 8 swings to some extent in the middle, the universal joint connector 9 swings along with the spiral wheel set and is still connected to the motor 10, so that the transmission function can be realized.

When the wheelchair climbs to a certain height and turns to a flat road surface from a stair road condition, the spiral wheel set 8 at the front end can slowly adjust the angle along with the wheelchair until the spiral wheel set 8 at the rear end also runs to the flat road surface, and the whole stair climbing process is completed.

When a user runs and if the storage battery is not electrified, or the user is assisted by an attendant, the rotating seat 2 can be rotated to a specified angle and locked, and the motor is separated from the front and rear spiral wheel sets, so that the attendant can easily push the wheelchair.

In conclusion, this all-terrain electric wheelchair can control going of wheelchair through the control lever that sets up on the handrail, accomplishes going on various complicated topography, simultaneously through the automatic adjustment that carries out the focus of gravity of focus detecting system, keeps the stability of focus, has guaranteed user's comfort level, can let patient and old man use at ease, trip alone.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The invention provides an all-terrain electric wheelchair which comprises a control rod (1), a rotary seat (2), a pedal (3), a main bearing frame (4), a lifting motor (6), a storage battery (7), a spiral wheel set (8), a universal joint connector (9) and a motor (9); the gravity center detection system (5) is connected above the main bearing frame (4), the seat horizontal rotating device (24) is connected above the gravity center detection system (5), the horizontal rotating device is connected with the rotary seat (2), the seat armrests (22) are arranged on two sides of the seat, the control rod (1) is installed on the armrest on one side, the pedal plate (3) is connected at the front end of the bottom of the rotary seat, the storage batteries (7) are installed on two sides of the main bearing frame (4), the motor (9) is installed inside the main bearing frame (4), the motor (9) is connected with the universal joint connector (9), the universal joint connector (9) is connected with the spiral wheel set (8), and the gravity center detection system is characterized in that the spiral wheel set (8) comprises a wheel set support (81), a spiral wheel shaft (82), an outer spiral structure (821), an inner spiral structure, the universal joint connector (9) is connected with a spiral wheel shaft (82), the spiral wheel shaft (82) is installed in a wheel set support (81), the wheel set support (81) is fixed on the main bearing frame (4), an inner spiral mechanism (822) and an outer spiral mechanism (821) are arranged on the spiral wheel shaft (82), a rolling belt mechanism (83) is arranged on the outer sides of the inner spiral mechanism (822) and the outer spiral mechanism (821), and a crawler-type wheel set protection device (84) is fixedly connected to the outer side of the wheel set support (81).

2. The all-terrain motorized wheelchair as claimed in claim 1, wherein the pitch of the inner spiral mechanism (822) and the outer spiral mechanism (821) is between 0MM and 300MM, the spiral diameter is between phi 40 MM and phi 400MM, and the overall spiral length is between 150 MM and 600 MM.

3. The all-terrain electric wheelchair as claimed in claim 1, wherein the inner spiral mechanism (822) and the outer spiral mechanism (821) are provided with joints at two ends of the spiral wheel shaft (82) and are in smooth transition, the outer spiral mechanism (821) is provided with a hole for the inner spiral mechanism (822) to pass through, and the inner spiral mechanism (822) and the outer spiral mechanism (821) are jointed at two ends of the spiral wheel shaft (82) and are in smooth transition, so that the whole spiral mechanism is represented as a closed-loop and recyclable mechanism in three-dimensional space.

4. An all-terrain electric wheelchair as claimed in claim 3, characterized in that the inner screw mechanism (822) and the outer screw mechanism (821) are of a concave or convex slideway type structure on their outer edges.

5. The all-terrain electric wheelchair as claimed in claim 1, wherein the rolling belt mechanism (83) completely wraps the outer sides of the outer spiral mechanism (821) and the inner spiral mechanism (822), and the rolling belt mechanism (83) is in sliding clearance fit with the outer side slide way structures of the outer spiral mechanism (821) and the inner spiral mechanism (822) and can generate relative movement.

6. An all-terrain electric wheelchair as claimed in claim 7, characterized in that the rolling belt mechanism (83) can be a single closed-loop rolling belt with a slide.

7. An all-terrain electric wheelchair as claimed in claim 1, wherein the rolling belt mechanism (83) is composed of a plurality of sliding blocks with slide ways and a closed loop type rolling belt, and is uniformly distributed on the outer side of the outer spiral mechanism (821) and the inner spiral mechanism (822).

8. All-terrain electric wheelchair as claimed in claim 1, characterized in that the spiral wheel sets (8) are provided in four, possibly more, groups symmetrically on the left and right sides of the wheelchair.

9. The all-terrain electric wheelchair as claimed in claim 1, wherein the lifting motor (6) is connected between the gravity center detection system (5) and the main carriage (4), and the gravity center detection system (5) controls the movement of the lifting motor (6) to keep the gravity center stable.

10. An all-terrain electric wheelchair as claimed in claim 1, wherein the seat horizontal rotation device (24) enables the seat to rotate by 0-90 degrees around the Z-axis center of the wheelchair, and a self-locking structure is arranged in the seat horizontal rotation device, so that the seat can be self-locked when the seat is rotated to a specified angle.