CN204468480U - Safe electric wheelchair - Google Patents

Abstract

The utility model provides a safe electric wheelchair, which includes: a wheelchair frame, an armrest device, a locking assembly, a booster assembly and an anti-rollover frame; the wheelchair frame includes: an upper backrest, a lower backrest, a seat frame, a front frame, and a rear frame , a front support frame and a rear support frame; one end of the rear support frame is hingedly connected with the front support frame to form a first linkage structure, and the other end of the rear support frame is hingedly connected with the lower end of the lower backrest to form a second linkage structure; the armrest device includes an armrest Tube and armrest support tube; the locking assembly includes a buckle plate and buckle teeth, one end of the buckle plate is pivotally connected to the lower backrest, and the other end is selectively buckled with the buckle teeth, and the buckle teeth are set on the rear support frame; Between the seat frame and the lower backrest; the anti-roll frame is hingedly connected with the rear frame and the rear brace. The electric wheelchair of the utility model has good safety, convenient use and long service life. The folding return distance of the electric wheelchair of the utility model is large, and it can be locked by a locking component after being unfolded and folded.

Description

safe electric wheelchair

technical field

The utility model relates to a wheelchair, in particular to an electric wheelchair with good safety and convenient use.

Background technique

The electric wheelchair is based on the traditional manual wheelchair, superimposed with high-performance power drive device, intelligent control device, battery and other components, transformed and upgraded, equipped with artificially operated intelligent controller, can drive the wheelchair to complete forward, backward, steering A new generation of intelligent wheelchair with multiple functions such as standing, lying down, etc. is a high-tech product combining modern precision machinery, intelligent numerical control, engineering mechanics and other fields.

However, although the existing electric wheelchair has the advantage of small folding volume, its locking mechanism has low safety performance, laborious and cumbersome problems when the wheelchair is opened, and the backrest cannot be locked. At the same time, the existing electric wheelchairs still have unstable operation, and the problem of overturning is prone to occur in some special locations, thereby threatening the personal health of users.

Therefore, for the problems referred to above, an improved electric wheelchair is proposed.

Utility model content

The purpose of the utility model is to provide a safe electric wheelchair to overcome the deficiencies in the prior art.

In order to achieve the purpose of the above-mentioned utility model, an electric wheelchair of the present utility model includes: a wheelchair frame, an armrest device, a locking component, a booster component and an anti-rolling frame;

The wheelchair frame includes: an upper backrest, a lower backrest, a seat frame, a front frame, a rear frame, a front brace and a rear brace; the lower end of the upper backrest is hinged to the upper end of the lower backrest, and the seat One end of the frame is hingedly connected to the rear frame, the other end of the seat frame is hinged to the lower backrest, the upper end of the front frame is hinged to the rear frame, and the rear frame is hinged to the The rear bracket is hingedly connected, one end of the rear bracket is hinged with the front bracket to form a first linkage structure, and the other end of the rear bracket is hinged with the lower end of the lower backrest to form a second linkage structure;

The handrail device includes a handrail tube and a handrail support tube, one end of the handrail support tube is hinged to the handrail tube, the other end is hinged to the seat frame, and the handrail tube is hinged to the lower backrest;

The locking assembly includes a buckle and a buckle, one end of the buckle is pivotally connected to the lower backrest, and the other end is selectively buckled with the buckle, and the buckle is arranged on the rear support ;

The booster component is a gas spring or an electric push rod, and the booster component is arranged between the seat frame and the lower backrest;

The anti-roll frame is hingedly connected with the rear vehicle frame and the rear brace.

As an improvement of the safety electric wheelchair of the present utility model, the first linkage structure and the second linkage structure are mutually linked to form the main structure of the safety electric wheelchair.

As an improvement of the safety electric wheelchair of the present invention, the locking assembly has a first locking state when the electric wheelchair is unfolded, and a second locking state after the electric wheelchair is folded.

As an improvement of the safety electric wheelchair of the present utility model, both ends of the booster assembly are hingedly connected to the seat frame and the lower backrest respectively.

As an improvement of the safety electric wheelchair of the present utility model, the anti-rollover frame includes a frame body and rollers pivotally connected to both sides of the frame body, one end of the frame body is hinged to the rear frame, and The frame body is hingedly connected with the rear support frame through a connecting rod.

As an improvement of the safety electric wheelchair of the present utility model, the safety electric wheelchair further includes a foot frame, and the foot frame is hingedly connected with the front support frame.

As an improvement of the safety electric wheelchair of the present invention, the safety electric wheelchair further includes a seat back cushion, and the seat back cushion is arranged on the seat frame, the upper backrest and the lower backrest.

As an improvement of the safety electric wheelchair of the present invention, the safety electric wheelchair includes front wheels and rear wheels, and the front wheels and rear wheels are pivotally connected with the front frame and the rear frame respectively, and the safety electric wheelchair also A motor is included, and the motor is connected in drive with the rear wheel.

As an improvement of the safety electric wheelchair of the present utility model, a fender is arranged above the rear wheel, and the fender is connected with the rear frame.

As an improvement of the safety electric wheelchair of the present invention, the safety electric wheelchair further includes a control device, the control device is located on the handrail tube, and the control device controls the forward rotation and reverse rotation of the motor.

Compared with the prior art, the beneficial effect of the utility model is that the electric wheelchair of the utility model has good safety, convenient use and long service life. The folding return distance of the electric wheelchair of the utility model is large, and can be locked by a locking component after being unfolded and folded, which is convenient for locking and pushing the backrest when unfolding, and storing after being folded. At the same time, the automatic folding and opening functions can be realized by using the power-assisted components, which is more suitable for disabled people with inconvenient hands and feet. Moreover, the anti-rollover frame can help prevent the wheelchair from overturning, thereby ensuring the personal safety of the user.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of a specific embodiment of the safety electric wheelchair of the present invention;

Fig. 2 is an explosion diagram of the safety electric wheelchair in Fig. 1;

FIG. 3 is an enlarged schematic view of the locking assembly in FIG. 1 .

Detailed ways

The utility model will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the utility model, and those of ordinary skill in the art can perform functions, methods, or structures based on these implementations. The above equivalent transformation or replacement all belong to the protection scope of the present utility model.

As shown in FIGS. 1 and 2 , the safety electric wheelchair 100 of the present invention includes: a wheelchair frame 10 , an armrest device 20 , a locking assembly 30 , a booster assembly 40 and an anti-rolling frame 50 .

The wheelchair frame 10 includes: an upper backrest 51 , a lower backrest 52 , a seat frame 53 , a front frame 54 , a rear frame 55 , a front brace 56 and a rear brace 57 .

Wherein, the lower end of the upper backrest 51 is hingedly connected to the upper end of the lower backrest 52 through corresponding hinge holes. And the height of the upper backrest 51 can be adjusted by the adjustment knob 93 thereon, so as to meet the usage requirements of users of different heights. When folded, the upper backrest 51 can be rotated and folded relative to the lower backrest 52 . One end of the seat frame 53 is hingedly connected to the rear frame 55 , and the other end of the seat frame 53 is hingedly connected to the lower backrest 52 . The upper backrest 51 , lower backrest 52 and seat frame 53 form the seat structure of the electric wheelchair. Meanwhile, the safety electric wheelchair 100 also includes a seat back cushion 60 , and the seat back cushion 60 is arranged on the seat structure formed by the seat frame 53 , the upper backrest 51 and the lower backrest 52 .

The upper end of the front frame 54 is hinged to the rear frame 55 , and the rear frame 55 is hinged to the rear bracket 57 . Wherein, the front frame 54 is arranged oppositely, and the front wheel 71 is pivotally connected to the front frame 54 on either side. Similarly, rear frames 55 are disposed on opposite sides of the seat structure, and rear wheels 72 are pivotally connected to rear frames 55 on either side. The safety electric wheelchair 100 also includes a motor 80 , which is in transmission connection with the rear wheel 72 to drive the rear wheel 72 . Further, a fender 90 is also arranged above the rear wheel 72 , and the fender 90 is connected with the rear frame 55 .

The front support frame 56 and the rear support frame 57 are located below the seat frame 53, one end of the rear support frame 57 is hingedly connected with the front support frame 56 to form a first linkage structure, and the other end of the rear support frame 57 is It is hingedly connected with the lower end of the lower backrest 52 to form a second linkage structure. Wherein, the first linkage structure and the second linkage structure are mutually linked to form the main structure of the safety electric wheelchair.

The handrail device 20 includes a handrail tube 21 and a handrail support tube 22. One end of the handrail support tube 21 is hingedly connected to the handrail tube 22, and the other end is hingedly connected to the seat frame 53. The handrail tube 22 is hinged to the The lower backrest 52 is hinged. The armrest device 20 is located above the rear frame 55 and on both sides of the seat structure.

As shown in FIG. 3 , the locking assembly 30 includes a buckle plate 31 and a buckle tooth 32 , one end of the buckle plate 31 is pivotally connected to the lower backrest 52 , and the other end is selectively buckled with the buckle tooth 32 , The buckle teeth 32 are disposed on the rear bracket 57 . Specifically, the locking assembly 30 has a first locking state when the electric wheelchair is unfolded, and a second locking state after the electric wheelchair is folded. Wherein, when the locking assembly 30 is in the first locking state, the locking assembly 30 can lock the backrest structure formed by the upper backrest 51 and the lower backrest 52, so as to improve the stability of the electric wheelchair and facilitate the pushing of the electric wheelchair.

The booster assembly 40 is a gas spring or an electric push rod, and the booster assembly 40 is arranged between the seat frame 53 and the lower backrest 52 . The booster component can realize automatic folding and opening functions, and is more suitable for disabled people with inconvenient hands and feet. Specifically, two ends of the booster assembly are hingedly connected to the seat frame 53 and the lower backrest 52 respectively.

The anti-rollover frame 50 is located between the rear wheels 72, and when the electric wheelchair is moving, it can assist the promotion of the electric wheelchair through its own forehead rollers, increasing the contact area between the electric wheelchair and the ground, which is beneficial to prevent the wheelchair from falling over. The personal safety of users is guaranteed. The anti-roll frame 50 is hingedly connected with the rear vehicle frame 55 and the rear brace 57 . Specifically, the anti-roll frame 50 includes a frame body 51 and rollers 52 pivotally connected to both sides of the frame body 51, one end of the frame body 51 is hinged to the rear frame 55, and the The frame body 51 is hingedly connected to the rear bracket 57 through a connecting rod. The roller 52 can move synchronously with the front wheel 71 and the rear wheel 72 .

The safety electric wheelchair 100 also includes a foot frame 91 , and the foot frame 91 is hingedly connected to the front bracket 56 . The foot frame 91 can support the user's feet and legs, improving the comfort of the user.

The safety electric wheelchair 100 also includes a control device 92 located on the handle tube 21 , and the control device 92 controls the forward rotation and reverse rotation of the motor 80 .

In summary, the electric wheelchair of the present utility model is safe, easy to use, and has a long service life. The folding return distance of the electric wheelchair of the utility model is large, and can be locked by a locking component after being unfolded and folded, which is convenient for locking and pushing the backrest when unfolding, and storing after being folded. At the same time, the automatic folding and opening functions can be realized by using the power-assisted components, which is more suitable for disabled people with inconvenient hands and feet. Moreover, the anti-rollover frame can help prevent the wheelchair from overturning, thereby ensuring the personal safety of the user.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A safe electric wheelchair, characterized in that the safe electric wheelchair comprises: a wheelchair frame, an armrest device, a locking assembly, a booster assembly and an anti-rollover frame; The wheelchair frame includes: an upper backrest, a lower backrest, a seat frame, a front frame, a rear frame, a front brace and a rear brace; the lower end of the upper backrest is hinged to the upper end of the lower backrest, and the seat One end of the frame is hingedly connected to the rear frame, the other end of the seat frame is hinged to the lower backrest, the upper end of the front frame is hinged to the rear frame, and the rear frame is hinged to the The rear bracket is hingedly connected, one end of the rear bracket is hinged with the front bracket to form a first linkage structure, and the other end of the rear bracket is hinged with the lower end of the lower backrest to form a second linkage structure; The handrail device includes a handrail tube and a handrail support tube, one end of the handrail support tube is hinged to the handrail tube, the other end is hinged to the seat frame, and the handrail tube is hinged to the lower backrest; The locking assembly includes a buckle and a buckle, one end of the buckle is pivotally connected to the lower backrest, and the other end is selectively buckled with the buckle, and the buckle is arranged on the rear support ; The booster component is a gas spring or an electric push rod, and the booster component is arranged between the seat frame and the lower backrest; The anti-roll frame is hingedly connected with the rear vehicle frame and the rear brace. 2. The safety electric wheelchair according to claim 1, characterized in that, the first linkage structure and the second linkage structure are interlocked to form the main structure of the safety electric wheelchair. 3. The safety electric wheelchair according to claim 1, wherein the locking assembly has a first locking state when the electric wheelchair is unfolded, and a second locking state after the electric wheelchair is folded. 4. The safety electric wheelchair according to claim 1, characterized in that, the two ends of the booster assembly are hingedly connected to the seat frame and the lower backrest respectively. 5. The safety electric wheelchair according to claim 1, wherein the anti-rollover frame includes a frame body and rollers pivotally connected to both sides of the frame body, one end of the frame body is connected to the rear car The frame is hingedly connected, and the frame body is hingedly connected with the rear support frame through a connecting rod. 6 . The safety electric wheelchair according to claim 1 , characterized in that, the safety electric wheelchair further comprises a foot frame, and the foot frame is hingedly connected to the front bracket. 7 . 7. The safety electric wheelchair according to claim 1, characterized in that, the safety electric wheelchair further comprises a seat back cushion, and the seat back cushion is arranged on the seat frame, the upper backrest and the lower backrest. 8. The safety electric wheelchair according to claim 1, characterized in that, the safety electric wheelchair comprises front wheels and rear wheels, and the front wheels and rear wheels are pivotally connected to the front frame and the rear frame respectively, The safety electric wheelchair also includes a motor, which is connected to the rear wheel in transmission. 9 . The safety electric wheelchair according to claim 8 , wherein a fender is arranged above the rear wheel, and the fender is connected with the rear frame. 10. The safety electric wheelchair according to claim 8, characterized in that, the safety electric wheelchair further comprises a control device, the control device is located on the handrail tube, and the control device controls the forward rotation and rotation of the motor. reverse.