阅读说明：本技术 自适应车架 (Self-adaptive frame ) 是由 张钊 于 2019-08-15 设计创作，主要内容包括：本发明公开一种自适应车架,包括车体、第一支臂、第二支臂、主动轮、第一辅助轮、第二辅助轮及摆杆,所述第一支臂的中部枢接于所述车体的一端,所述第一辅助轮设置于所述第一支臂的一端；所述摆杆的一端枢接于所述车体的另一端,所述摆杆的另一端枢接于所述第二支臂的中部；所述第二辅助轮设置于所述第二支臂的一端,所述第一支臂的另一端与所述第二支臂的另一端枢接；所述主动轮枢接于所述第一支臂上且位于所述第一辅助轮与所述第二辅助轮之间。本发明自适应车架可以在不平的路面上保持各个车轮与地面有效接触,保证正常行驶。(The invention discloses a self-adaptive frame which comprises a vehicle body, a first support arm, a second support arm, a driving wheel, a first auxiliary wheel, a second auxiliary wheel and a swing rod, wherein the middle part of the first support arm is pivoted to one end of the vehicle body, and the first auxiliary wheel is arranged at one end of the first support arm; one end of the swing rod is pivoted to the other end of the vehicle body, and the other end of the swing rod is pivoted to the middle part of the second support arm; the second auxiliary wheel is arranged at one end of the second support arm, and the other end of the first support arm is pivoted with the other end of the second support arm; the driving wheel is pivoted on the first support arm and is positioned between the first auxiliary wheel and the second auxiliary wheel. The self-adaptive frame can keep each wheel effectively contacted with the ground on an uneven road surface, and ensures normal running.)

1. An adaptive frame, its characterized in that: the middle part of the first support arm is pivoted to one end of the vehicle body, and the first auxiliary wheel is arranged at one end of the first support arm; one end of the swing rod is pivoted to the other end of the vehicle body, and the other end of the swing rod is pivoted to the middle part of the second support arm; the second auxiliary wheel is arranged at one end of the second support arm, and the other end of the first support arm is pivoted with the other end of the second support arm; the driving wheel is pivoted on the first support arm and is positioned between the first auxiliary wheel and the second auxiliary wheel.

2. The adaptive frame of claim 1, wherein: the swing rod is fixedly connected with a first pivot shaft, a shaft sleeve is fixed on the second support arm, and the shaft sleeve is rotatably sleeved on the first pivot shaft.

3. The adaptive frame of claim 2, wherein: the first pivot shaft is located on the upper side of the vehicle body.

4. The adaptive frame of claim 1, wherein: the first supporting arm comprises an upper rod and a lower rod, the lower rod is of a bending structure, the bending part of the lower rod is pivoted with one end of the vehicle body, and two ends of the lower rod are fixedly connected with the upper rod.

5. The adaptive frame of claim 1, wherein: the first auxiliary wheel and/or the second auxiliary wheel are universal wheels.

Technical Field

The invention relates to a frame, in particular to a wheelchair frame which can keep each wheel effectively contacted with the ground on an uneven road surface and ensure normal running. .

Background

The two-wheeled balance car of prior art all has two bull wheels, then in order to guarantee two-wheeled balance car's balance, increases supplementary steamboat in bull wheel fore-and-aft direction both sides, and the bull wheel is installed directly on two-wheeled balance car's frame usually, by the motor drive that is fixed in on the frame. The small wheel is usually pivoted on a support arm, the support arm is pivoted on the frame and is used for shock absorption through a shock absorber, and the small wheel and the support arm are used for auxiliary support of the frame to prevent the frame from losing balance. The existing two-wheel balance vehicle has good adaptability on a flat road surface, but can not advance when running on an uneven road surface. The front and rear small wheels are supported by independent support arms and shock absorbers, when the large wheel passes through a low-lying ground and the front and rear small wheels are on a higher ground, the two small wheels can directly support the wheelchair wheels, the large wheel is erected and cannot be contacted with the low-lying ground, and the whole frame is driven to move forwards by the motor outputting power to the large wheel, so that the driving force of the motor cannot be converted into the forward power at the moment, and the two-wheel balance frame cannot move forwards.

Disclosure of Invention

The invention aims to provide an adaptive frame which can keep each wheel effectively contacted with the ground on an uneven road surface and ensure normal running.

In order to achieve the above object, the adaptive frame provided by the present invention comprises a frame, a first arm, a second arm, a driving wheel, a first auxiliary wheel, a second auxiliary wheel and a swing rod, wherein the middle part of the first arm is pivoted to one end of the frame, and the first auxiliary wheel is arranged at one end of the first arm; one end of the swing rod is pivoted to the other end of the vehicle body, and the other end of the swing rod is pivoted to the middle part of the second support arm; the second auxiliary wheel is arranged at one end of the second support arm, and the other end of the first support arm is pivoted with the other end of the second support arm; the driving wheel is pivoted on the first support arm and is positioned between the first auxiliary wheel and the second auxiliary wheel.

Compared with the prior art, the invention is provided with the first support arm, the first support arm is pivoted on the vehicle body, and the driving wheel and the first auxiliary wheel are respectively arranged at the two ends of the first support arm, so that the first support arm can swing relative to the vehicle body, and the heights of the driving wheel and the first auxiliary wheel can be automatically adjusted through swinging, therefore, when the vehicle encounters an uphill road surface, a downhill road surface and an uneven road surface, the heights of the driving wheel and the first auxiliary wheel can be timely adjusted by the first support arm, and the vehicle can automatically adapt to the road surface condition. And a second support arm and a swing rod are arranged, so that two ends of the swing rod are respectively pivoted with the vehicle body and the second support arm, one end of the first support arm is pivoted with one end of the second support arm, and therefore the second support arm can also swing relative to the vehicle body, and the height of the second auxiliary wheel can also be automatically adjusted through swinging. Therefore, the invention can ensure that the driving wheel can be effectively contacted with the ground at any time, avoid the condition that the middle driving wheel is lifted by the front and rear auxiliary wheels and cannot land when the traditional vehicle encounters an inclined road surface, so that the vehicle cannot go forward, and ensure the normal running.

Preferably, the swing rod is fixedly connected with a first pivot shaft, and the second support arm is fixed with a shaft sleeve which is rotatably sleeved on the first pivot shaft.

Specifically, the first pivot shaft is located on the upper side of the vehicle body.

Preferably, the first support arm comprises an upper rod and a lower rod, the lower rod is of a bending structure, the bending part of the lower rod is pivoted with one end of the vehicle body, and two ends of the lower rod are fixedly connected with the upper rod.

Preferably, the first auxiliary wheel and/or the second auxiliary wheel are universal wheels.

Drawings

FIG. 1 is a block diagram of the adaptive frame of the present invention.

Fig. 2 is an exploded view of the adaptive frame of the present invention.

Fig. 3 is a state diagram of the adaptive frame of the present invention when it is on an uphill slope.

FIG. 4 is a state diagram of the adaptive frame of the present invention when driving on a convex road.

FIG. 5 is a state diagram of the adaptive frame of the present invention when driving on a depressed road.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.

As shown in fig. 1 and 2, the adaptive frame 100 of the present invention includes a vehicle body 1, a first arm 2, a second arm 3, a driving wheel 4, a first auxiliary wheel 5, a second auxiliary wheel 6 and a swing link 7, wherein the middle of the first arm 2 is pivoted to one end of the vehicle body 1 through a second pivot shaft 2a, and the first auxiliary wheel 5 is disposed at one end of the first arm 2; one end of the swing rod 7 is pivoted to the other end of the vehicle body 1 through a third pivoting shaft 7b, and the other end of the swing rod 7 is pivoted to the middle part of the second support arm 3 through a first pivoting shaft 7 a; the second auxiliary wheel 6 is arranged at one end of the second support arm 3, and the other end of the first support arm 2 is pivoted with the other end of the second support arm 3 through a fourth pivoting shaft 2 b; the driving wheel 4 is pivoted on the first support arm 2 and is located between the first auxiliary wheel 5 and the second auxiliary wheel 6.

referring to fig. 1 and 2, specifically, the swing rod 7 is fixedly connected to the first pivot shaft 7a, a shaft sleeve 31 is fixed on the second support arm 3, and the shaft sleeve 31 is rotatably sleeved on the first pivot shaft 7 a. The first pivot shaft 7a, the second pivot shaft 2a, the third pivot shaft 7b and the fourth pivot shaft 2b are horizontally arranged and are parallel to each other. When the adaptive frame 100 is located on a flat road surface, the first pivot shaft 7a and the second pivot shaft 2a are located on the upper side of the vehicle body 1.

Referring to fig. 1 and 2, the first arm 2 includes an upper rod 21 and a lower rod 22, the lower rod 22 is of a bent structure, a bent portion of the lower rod 22 is pivotally connected to one end of the vehicle body 1, and two ends of the lower rod 22 are fixedly connected to the upper rod 21. The second support arm 3 is of a bent structure. When the adaptive frame 100 is located on a flat road surface, the upper rod 21 and the second support arm 3 are located on the upper side of the vehicle body 1.

As shown in fig. 1, the first auxiliary wheel 5 and the second auxiliary wheel 6 are universal wheels. The universal wheel comprises a wheel seat and a roller, the wheel seat is respectively pivoted to the end parts of the first auxiliary wheel 5 and the second auxiliary wheel 6, the pivoting center is vertically arranged, and the roller is pivoted to the wheel seat.

The working principle of the adaptive frame 100 of the present invention is described in detail below with reference to the accompanying drawings in combination with the above description, as follows:

As shown in fig. 3, when the adaptive frame 100 travels on an uneven road surface, for example, when going uphill, the first auxiliary wheel 5 is lifted by a slope surface, so that one end of the first arm 2 swings upward around the second pivot shaft 2a, at this time, the other end of the first arm 2 presses down to drive the driving wheel 4 to stick to the road surface, one end of the second arm 3 drives the second auxiliary wheel 6 to stick to the road surface in a maintaining manner, and further, the driving wheel 4, the first auxiliary wheel 5 and the second auxiliary wheel 6 are adapted to the corresponding road surface, so that the driving wheel 4 can continue to drive the frame to move forward.

As shown in fig. 4, when the driving wheel 4 of the adaptive frame 100 passes through a convex road surface, the driving wheel 4 is lifted by the convex road surface, so that the end of the first arm 2 swings upward around the second pivot shaft 2a, at this time, one end of the first arm 2 presses down to drive the first auxiliary wheel 5 to stick to the road surface, one end of the second arm 3 also presses down to drive the second auxiliary wheel 6 to stick to the road surface, so that the driving wheel 4, the first auxiliary wheel 5 and the second auxiliary wheel 6 are adapted to the corresponding road surface, and the driving wheel 4 continues to drive the frame to move forward.

As shown in fig. 5, when the driving wheel 4 of the adaptive frame 100 passes through a concave road surface, the driving wheel 4 sinks and sticks to the concave road surface, so that the end of the first arm 2 swings downward around the second pivot shaft 2a, at this time, one end of the first arm 2 drives the first auxiliary wheel 5 to swing upward and stick to a non-concave road surface, one end of the second arm 3 also drives the second auxiliary wheel 6 to swing upward and stick to a non-concave road surface, so that the driving wheel 4, the first auxiliary wheel 5 and the second auxiliary wheel 6 are adapted to the corresponding road surfaces, and the driving wheel 4 continues to drive the frame to move forward.

Compared with the prior art, the invention is provided with the first support arm 2, the first support arm 2 is pivoted on the vehicle body 1, and the driving wheel 4 and the first auxiliary wheel 5 are respectively arranged at the two ends of the first support arm 2, so that the first support arm 2 can swing relative to the vehicle body 1, and the heights of the driving wheel 4 and the first auxiliary wheel 5 can be automatically adjusted through swinging, therefore, when encountering uphill, downhill and uneven road surfaces, the first support arm 2 can timely adjust the heights of the driving wheel 4 and the first auxiliary wheel 5, thereby automatically adapting to the road conditions. Moreover, by arranging a second support arm 3 and a swing rod 7, two ends of the swing rod 7 are respectively pivoted with the vehicle body 1 and the second support arm 3, and one end of the first support arm 2 is pivoted with one end of the second support arm 3, so that the second support arm 3 can also swing relative to the vehicle body 1, and the height of the second auxiliary wheel 6 can also be automatically adjusted through swinging. Therefore, the invention can ensure that the driving wheel 4 can be effectively contacted with the ground at any time, avoid the situation that the middle driving wheel 4 is lifted by the front and rear auxiliary wheels and can not land when the traditional vehicle meets an inclined road surface, so that the vehicle can not go forward, and ensure that the frame of the wheelchair can normally run.

The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.