CN108502052A - Portable wheel chair assistance platform and wheelchair moving method - Google Patents

Abstract

The invention discloses a kind of portable wheel chair assistance platforms, in use, wheelchair is detachably disposed on the platform, wheelchair does synchronizing moving described in the platform bearer.Correspondingly, a kind of wheelchair moving method is also provided, wheelchair is placed on portable wheel chair assistance platform, wheelchair does synchronizing moving described in the platform bearer.Beneficial effects of the present invention are that the application can be used for disabled person or old man's trip, and being operated by household can also be had the characteristics that convenient, fast by seating wheelchair people's automatic control.Disabled person or old man are sitting on normal domestic use wheelchair, oneself control or household stand or be seated on this assistance platform, common to move ahead, and during which household are facilitated to look after.

Description

Portable wheelchair auxiliary platform and wheelchair moving method

technical field

The invention relates to the technical field of wheelchair auxiliary equipment, in particular to a portable wheelchair auxiliary platform and a wheelchair moving method.

Background technique

With the development of technology and life, wheelchairs have been widely used. Wheelchairs provide mobility for the physically disabled and those with reduced mobility. Current wheelchairs are generally divided into manual and electric wheelchairs. For manual wheelchairs, the user and other people are usually required to help push the wheelchair forward. If the travel distance is too long, the user and other people will be very tired, which seriously affects the use of the wheelchair; Converting electric energy into kinetic energy solves the power problem of the manual wheelchair, but its structure is complex, its volume and weight are large, and it is inconvenient to carry and carry.

Contents of the invention

Aiming at the technical problems in the above-mentioned prior art, the present invention provides a portable wheelchair auxiliary platform and a wheelchair moving method.

In order to achieve the purpose of the present invention, the present invention provides a portable wheelchair auxiliary platform. When in use, the wheelchair is detachably placed on the platform, and the platform carries the wheelchair for synchronous movement.

Correspondingly, a wheelchair moving method is also provided, wherein the wheelchair is placed on a portable wheelchair auxiliary platform, and the platform carries the wheelchair for synchronous movement.

Compared with the prior art, the beneficial effect of the present invention is that the present application can be used for the travel of the disabled or the elderly, and can be operated by family members or controlled by wheelchair users, which is convenient and fast. The disabled or the elderly sit in an ordinary household wheelchair and control it by themselves or their family members stand or sit on this auxiliary platform to move forward together, which is convenient for family members to take care of during the period.

Description of drawings

Fig. 1 shows the first schematic diagram of the structure of Embodiment 1 of the portable wheelchair auxiliary platform of the present application;

Fig. 2 shows the second schematic diagram of the structure of Embodiment 1 of the portable wheelchair auxiliary platform of the present application;

Fig. 3 shows the third schematic diagram of the structure of Embodiment 1 of the portable wheelchair auxiliary platform of the present application;

Fig. 4 is a schematic structural view of the lock in Embodiment 1 of the portable wheelchair auxiliary platform of the present application;

Figure 5 is a schematic structural view of Embodiment 2 of the portable wheelchair auxiliary platform of the present application;

In the figure, 1-first folding frame, 2-second folding frame, 3-front traveling wheel, 4-rear traveling wheel, 5-first hinge, 6-second hinge, 7-locking member, 8 -H-shaped frame, 9-square frame, 10-fixing block, 11-fixing beam, 12-support rod, 13-reinforcing rib, 81-wheelchair placement slot, 82-locking rod, 83-locking block, 84-fastening cover body.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

It should be noted that the "connection" mentioned in this application and the words used to express "connection", such as "connected", "connected", etc., include not only a direct connection between a certain component and another component, but also a certain One part is connected to another part through other parts.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, it indicates There are features, steps, operations, parts or modules, components and/or combinations thereof.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one component or module or feature and other components or modules or features shown. It will be understood that the spatially relative terms are intended to encompass different orientations of components or modules in use or operation in addition to the orientation depicted in the figures. For example, if a component or module in the figures is turned upside down, the component or module described as "above" or "above" the other component or module or configuration would then be oriented "above the other component or module or configuration". components or modules or configurations” or “beneath other components or modules or configurations”. Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". This component or module may be oriented differently (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Example 1

As shown in Figures 1-4, this embodiment provides a portable auxiliary wheelchair platform. The platform and the wheelchair are separate separate structures. On the platform, the platform carries the wheelchair for synchronous movement.

Wherein, the platform includes a platform frame body, a front traveling wheel 3 is respectively installed on both sides of the front end of the platform frame body, and a rear traveling wheel 4 is respectively installed on both sides of the rear end, and a wheelchair placement slot 81 is arranged on the platform frame body. , the frame of the wheelchair is placed in the wheelchair placement groove 81 and locked by a locking member. It is the national manufacturing standard for wheelchairs to set the tipping bars on the wheelchair, therefore, the tipping bars on both sides can be put into the wheelchair placement groove 81 .

Wherein, the front traveling wheel 3 adopts a hub-type motor with a unilateral output shaft of a brushless motor. Described rear traveling wheel 4 is the universal wheel with brake.

Wherein, the platform frame body is a foldable structure, and the platform frame body includes a first folding frame 1, a second folding frame 2, a square frame 9, and an H-shaped frame 8, and the platform frame body includes a first folding frame 1 1. The lower end surfaces of the second folding frame 2 are flush, and the connection between the lower end surfaces of the two is hingedly connected by a first hinge 5, which can be a hinge, etc., and the second folding frame 2 and the square frame 9 The end faces are flush, and the joints of the upper end faces are hingedly connected by the second hinge 6, the hinges of the first folding frame 1, the second folding frame 2 and the square frame 9 are foldable, and the rear traveling wheels 4 are arranged at the second Both sides of the lower end of a folding frame; the first folding frame 1 and the second folding frame 2 both include a square frame, and a cover structure fixed on the upper end of the square frame; the square frame 9 includes a square frame and is respectively fixed on the square frame. On the upper cover plate and the lower cover plate on the upper and lower end faces of the frame, the wheel axle of the front traveling wheel 3 is fixed by the fixed block 10 arranged on the fixed beam 11 inside the square frame 9, and is slidably connected with the fixed block, the upper cover plate and the lower cover In the cavity formed by the plate, the storage battery and the control main board of the front traveling wheel 3 are also placed.

In addition, two H-shaped frames 8 are symmetrically installed on both sides above the square frame 9, and the upper end surface of the H-shaped frame 8 is provided with a wheelchair placement groove 81 and a locking piece used in conjunction with the wheelchair placement groove 81. , the locking member includes a lock bar 82, a lock block 83 and a fastening cover 84, one end of the fastening cover 84 is hingedly connected to one end of the wheelchair placement groove 81, and the other end is hingedly connected to a T-shaped locking bar 82, so The lock block 82 is fixed on the H-shaped frame 8, and a lock opening is opened on it, and the small-diameter portion of the locking rod is stuck in the lock opening to realize the locking of the locking member. This structure is convenient and quick to lock and easy to use; it is firm and reliable and prevents the wheelchair from being separated from the platform.

Example 2

On the basis of Embodiment 1, as shown in FIG. 5 , the platform frame provided by this embodiment is detachably connected with a seat structure. The seat structure includes a support rod 12 and a seat. The lower end of the support rod 12 is detachably connected to the first folding frame 1 , and the upper end is connected to a seat (not shown).

In addition, the present application provides a method for moving a wheelchair. The wheelchair is placed on a portable wheelchair auxiliary platform, and the platform carries the wheelchair for synchronous movement. The platform and the wheelchair are separate separate structures. When in use, the two used together.

Wherein, the movement of the platform is controlled wirelessly by a remote controller.

It should be noted that this platform uses two brushless motors, controlled by an intelligent chip, to realize forward, backward, left and right steering, controlled by the two-dimensional joystick on the control box with infinitely variable speed. The speed of this application can be intelligently limited, making the platform safe and easy to operate and reliable to operate. The storage battery adopts a built-in rechargeable lithium battery, which has the characteristics of many charging and discharging cycles, light weight of the battery, and free battery maintenance. There is a sound prompt when going backward, an obstacle detection function when going forward, and a smart phone to display the battery level. It is convenient to travel, and the product can be charged with the car power supply. The rear controller can stand or sit on a chair. The platform is foldable, small in size and easy to carry

In addition, this application uses a brushless motor, and the controller realizes the AD conversion of the speed control value, the PWM wave output of the left and right brushless motors, the detection of the traveling speed, the real-time monitoring of the battery power supply voltage, and the mutual transmission with the smart phone APP through Bluetooth. function of the data. This product platform has a good hardware interface with ordinary medical wheelchairs, enabling the elderly or disabled to travel without barriers and receive real-time care from guardians.

ATMEL's single-chip microcomputer can be used as the control chip. In terms of hardware, the power circuit design, intelligent charging system, and real-time voltage monitoring system can reliably protect the lithium battery. Two-way voltage signal AD conversion system and two-way PWM signal conversion seamless output. The motor drive circuit is designed with over-current and locked-rotor protection. In terms of software, modular programming and structured programming are adopted. The software has good real-time performance and has room for upgrading. This product has a simple structure and is convenient for users to use.

The use of brushless motors has superior speed regulation performance, mainly in: easy adjustment (stepless speed regulation), wide speed regulation range, good low-speed performance (large starting torque, small starting current), stable operation, low noise, efficient. The normal operating voltage of the system is 36V, the maximum operating current is 10A, and the maximum output power is 360W (single wheel). The brushless motor has an electromechanical brake system, which must have an electrical signal to open the brake before the motor can rotate.

Specifically, the principle of straight forward movement in this application is: when the speed signal is detected to be moving forward, and the left and right steering signals have no steering requirements, the pulse width of the two PWM signals is the same, and the speed detection of the left and right wheels realizes that the two wheels have the same speed. The product is moving straight forward, and the speed of travel is detected at the same time, and the built-in upper limit of the speed cannot be exceeded. Similarly, when the speed signal is backwards and there is no steering request, the platform moves backwards and the speed of the platform cannot exceed the upper limit of travel. When there is a forward signal and a steering request, the PWM generator performs two-wheel drive PWM pulse width control according to the digital quantity of the steering signal, so that the speed of one wheel is smaller than the speed of the other wheel, thereby realizing steering. And according to the size of the digital quantity of the turn signal, the change of the turning radius is realized.

The control of the product is based on a two-dimensional industrial rocker, and two non-contact Hall linear element outputs. Reliable and wear-free, it overcomes the problem of numerical inaccuracy caused by the use of ordinary potentiometers. The control box can be placed on the armrest of the wheelchair occupant (the occupant has normal thinking and has the ability to control), and the occupant can control it by himself, or it can be placed on the push handle of the wheelchair, and the guardian can control it.

The standing or sitting part of this product can be folded, so that the wheelchair auxiliary platform is small in size, flexible to carry and widely used.

The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of portable wheel chair assistance platform, which is characterized in that in use, wheelchair is detachably disposed on the platform, Wheelchair does synchronizing moving described in the platform bearer.

2. portable wheel chair assistance platform according to claim 1, which is characterized in that the platform is respectively single with wheelchair Only split structure, in use, the two is used in combination.

3. portable wheel chair assistance platform according to claim 1 or 2, which is characterized in that the platform includes paralell A front walking wheel is installed in body, platform frame body front end both sides respectively, and a rear walking wheel is installed in rear end both sides respectively, described Wheelchair placing groove is provided on platform frame body, the frame body of the wheelchair is placed in the wheelchair placing groove, and passes through fastening device Locking.

4. portable wheel chair assistance platform according to claim 3, which is characterized in that the front walking wheel is brushless electricity Machine, the rear walking wheel are the universal wheel of strap brake.

5. portable wheel chair assistance platform according to claim 4, which is characterized in that the front walking wheel passes through remote controler Wireless control.

6. portable wheel chair assistance platform according to claim 3, which is characterized in that the platform frame body is foldable knot Structure.

7. portable wheel chair assistance platform according to claim 3, which is characterized in that detachably connect on the platform frame body It is connected to chair base structure.

8. a kind of wheelchair moving method, which is characterized in that wheelchair is placed on portable wheel chair assistance platform, the platform is held It carries the wheelchair and does synchronizing moving.

9. wheelchair moving method according to claim 8, which is characterized in that the platform is respectively individually to divide with wheelchair Body formula structure, in use, the two is used in combination.

10. wheelchair moving method according to claim 8 or claim 9, which is characterized in that the platform passes through remote controler wireless controlled System movement.