CN222777436U - Folding wheelchair - Google Patents

Abstract

The utility model discloses a folding wheelchair which comprises a front support, a rear support, a seat plate, a driving mechanism, a first driving assembly and a second driving assembly, wherein the front support is pivoted with the rear support, the seat plate is pivoted with the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the first driving assembly, the other end of the first driving assembly is connected with the seat plate so as to drive the seat plate to close towards the rear support, the output end of the driving mechanism is connected with one end of the second driving assembly, and the other end of the second driving assembly is connected with the front support so as to drive the front support to close towards the rear support. The folding wheelchair has the advantages of simplicity in folding and convenience in use.

Description

Folding wheelchair

Technical Field

The utility model relates to a wheelchair, in particular to a folding wheelchair.

Background

Wheelchairs are generally large in size, and are usually folded to reduce the size of the wheelchair for convenient storage. However, the folding support of the existing folding wheelchair is designed to be complex, the folding actions are more, and the operation is complex, so that the folding wheelchair is inconvenient to use for some people with inconvenient actions or older people.

Disclosure of utility model

The utility model aims to provide a folding wheelchair which is simple to fold and convenient to use.

The second object of the utility model is to provide a folding wheelchair which is simple to fold and convenient to use.

The third object of the utility model is to provide a folding wheelchair which is simple to fold and convenient to use.

The fourth object of the utility model is to provide a folding wheelchair which is simple to fold and convenient to use.

In order to achieve the above purpose, the folding wheelchair comprises a front support, a rear support, a seat plate, a driving mechanism, a first driving assembly and a second driving assembly, wherein the front support is pivoted with the rear support, the seat plate is pivoted with the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the first driving assembly, the other end of the first driving assembly is connected with the seat plate so as to drive the seat plate to approach towards the rear support, the output end of the driving mechanism is connected with one end of the second driving assembly, and the other end of the second driving assembly is connected with the front support so as to drive the front support to approach towards the rear support.

Compared with the prior art, the foldable wheelchair is characterized in that the front support and the seat board are pivoted on the rear support, the driving mechanism is arranged on the rear support, the first driving component is arranged between the driving mechanism and the seat board, and the second driving component is arranged between the driving mechanism and the front support, so that the driving mechanism is utilized to drive the first driving component to further drive the seat board to open or fold relative to the rear support, and meanwhile, the second driving component is driven to drive the front support to open or fold relative to the rear support, so that the whole foldable wheelchair can be unfolded or folded, the whole unfolding or folding process is carried out in a linkage mode, and the foldable wheelchair is simple in use.

Preferably, the driving mechanism comprises a driving device and a first swing arm, one end of the driving device is pivoted to the rear bracket, the other end of the driving device is pivoted to one end of the first swing arm, and the other end of the first swing arm is pivoted to one end of the first driving assembly.

The first driving component comprises a driving rod, a pivoting piece and a connecting rod, wherein one end of the driving rod is pivoted with the first swing arm, the other end of the driving rod is pivoted with the pivoting piece, the pivoting piece is pivoted with the rear support, one end of the connecting rod is pivoted with the pivoting piece, and the other end of the connecting rod is pivoted with the seat plate. Through setting up actuating lever, pin joint spare and connecting rod, can make follow the swing force of first swing arm transmission turns into to the downward pulling force of bedplate, and then reaches the order of order about the bedplate to the back support draws close.

Specifically, the driving mechanism further comprises a second swing arm, the first swing arm is fixedly connected with the second swing arm, one end of the second swing arm is pivoted with the rear support, and the second swing arm is pivoted with the second driving assembly.

Preferably, the driving mechanism comprises a driving device and a second swing arm, one end of the driving device is pivoted to the rear bracket, the other end of the driving device is pivoted to one end of the second swing arm, and the second swing arm is pivoted to the second driving assembly.

Preferably, the second driving assembly includes a first pull rod, one end of the first pull rod is pivoted to the second swing arm, and the other end of the first pull rod is pivoted to the front bracket. Through setting up first pull rod, can make the swing force of second swing arm transmission turns into to the pulling force of fore-stock, and then reaches the order of order about the fore-stock to the rear bracket draws close.

Preferably, the folding wheelchair further comprises a handrail mechanism and a third driving assembly, wherein the handrail mechanism is arranged on the rear support, one end of the third driving assembly is connected with the output end of the driving mechanism, and the other end of the third driving assembly is connected with the handrail mechanism so as to drive the handrail to approach the direction of the rear support. By arranging the third driving assembly, the armrest mechanism can be synchronously unfolded or folded with the seat plate and the front bracket, so that the armrest mechanism is very simple and convenient to fold, and the convenience of use is greatly improved.

Specifically, the handrail mechanism comprises a handrail, a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are respectively pivoted on the rear support, the other end of the third driving assembly is pivoted with one of the first connecting rod and the second connecting rod through a sliding shaft, and hands at two ends of the handrail are respectively pivoted with the upper ends of the first connecting rod and the second connecting rod. The first connecting rod and the second connecting rod are arranged between the handrail and the rear support, so that the handrail and the rear support form a variable quadrilateral structure, and the handrail can be folded or unfolded through any one of the first connecting rod and the second connecting rod, and the handrail folding device is simple in structure and convenient to control.

Specifically, the third driving assembly comprises a second pull rod, one end of the second pull rod is pivoted with the output end of the driving mechanism, and the other end of the second pull rod is pivoted with the handrail mechanism through a sliding shaft. The second pull rod can convert the swing force transmitted by the second swing arm into the pulling force for the first connecting rod or the second connecting rod, so that the aim of driving the armrest mechanism to fold or unfold is fulfilled.

Preferably, the folding wheelchair further comprises a backrest, a third driving assembly and a linkage mechanism, wherein one end of the backrest is pivoted to the seat board, one end of the third driving assembly is connected with the output end of the driving mechanism, the other end of the third driving assembly is pivoted with one end of the linkage mechanism through a sliding shaft, and the other end of the linkage mechanism is pivoted with the backrest to drive the backrest to close towards the seat board. By arranging the third driving component and the linkage mechanism, the backrest can be synchronously unfolded or folded with the seat plate and the front bracket, the folding is very simple and convenient, and the use convenience is greatly improved.

Specifically, the third driving assembly comprises a second pull rod, one end of the second pull rod is pivoted with the output end of the driving mechanism, and the other end of the second pull rod is connected with the sliding shaft. By utilizing the second pull rod and the linkage mechanism, a pushing force can be applied to the backrest, so that the backrest is driven to fold or unfold towards the direction of the seat board.

Specifically, the upper end of the front bracket is provided with an arc-shaped hole, and the sliding shaft slidably penetrates through the arc-shaped hole. The arc-shaped holes can limit the sliding shaft, so that the sliding stability of the sliding shaft is ensured.

The linkage mechanism comprises a first linkage rod, a second linkage rod and a third linkage rod, wherein one end of the first linkage rod is connected with the sliding shaft, the other end of the first linkage rod is pivoted with the second linkage rod, one end of the second linkage rod is pivoted with the seat plate, the other end of the second linkage rod is pivoted with one end of the third linkage rod, and the other end of the third linkage rod is pivoted with the backrest. Therefore, the driving force of the third driving assembly can be synchronously transmitted to the backrest, so that the backrest and the seat plate can be folded in a linkage way.

Preferably, the folding wheelchair further comprises wheels, and the wheels are respectively arranged on the front support and the rear support.

Preferably, the folding wheelchair further comprises a pedal, and the pedal is arranged at the lower end of the front support in a foldable manner. The pedal can provide a position for a user to hold feet, so that the comfort of the user is further improved.

Specifically, the output end of the driving device is arranged in a telescopic way.

A folding wheelchair comprises a front support, a rear support, a seat plate, a driving mechanism and a first driving assembly, wherein the front support is connected with the rear support, the seat plate is pivoted with the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the first driving assembly, and the other end of the first driving assembly is connected with the seat plate so as to drive the seat plate to approach towards the rear support.

The foldable wheelchair comprises a front support, a rear support, a seat plate, a driving mechanism, a first driving assembly, an armrest mechanism and a third driving assembly, wherein the front support is connected with the rear support, the seat plate is pivoted with the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the first driving assembly, the other end of the first driving assembly is connected with the seat plate so as to drive the seat plate to approach towards the rear support, the armrest mechanism is arranged on the rear support, one end of the third driving assembly is connected with the output end of the driving mechanism, and the other end of the third driving assembly is connected with the armrest mechanism so as to drive the armrest to approach towards the rear support.

The folding wheelchair comprises a front support, a rear support, a seat plate, a driving mechanism, a second driving assembly, an armrest mechanism and a third driving assembly, wherein the front support is pivoted with the rear support, the seat plate is arranged on the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the second driving assembly, the other end of the second driving assembly is pivoted with the front support so as to drive the front support to approach towards the rear support, the armrest mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the third driving assembly, and the other end of the third driving assembly is connected with the armrest mechanism so as to drive the armrest to approach towards the rear support.

Drawings

Fig. 1 is a perspective view of the folding wheelchair of the present utility model when unfolded.

Figure 2 is an internal structural view of the folding wheelchair of the present utility model.

Figure 3 is a semi-sectional view of the internal structure of the folding wheelchair of the present utility model.

Figure 4 is a side view of the internal structure of the folding wheelchair of the present utility model.

Figure 5 is a side view of the other side of the internal structure of the folding wheelchair of the present utility model.

Figure 6 is a semi-collapsed state view of the internal structure of the folding wheelchair of the present utility model.

Fig. 7 is a fully collapsed state of the folding wheelchair of the present utility model.

Detailed Description

In order to describe the technical content, the constructional features and the effects achieved by the present utility model in detail, the following description is made with reference to the embodiments in conjunction with the accompanying drawings.

As shown in fig. 1 to 7, there is shown a structure of a first embodiment of a folding wheelchair 100 according to the present utility model.

Referring to fig. 1 to 4, the folding wheelchair 100 of the present utility model includes a front frame 1, a rear frame 2, a seat board 3, a driving mechanism, a first driving assembly 7, a second driving assembly 8 and wheels 9, wherein the upper end of the front frame 1 is pivoted to the front end of the rear frame 2 to form a herringbone structure, and the pivot point is a. The wheels 9 are respectively disposed at the lower ends of the front brackets 1 and the rear ends of the rear brackets 2. The front end of the seat board 3 is pivoted with the front end of the rear bracket 2, and the pivot shaft is coaxial with the pivot shaft pivoted with the front bracket 1 and the rear bracket 2. The driving mechanism is arranged on the rear bracket 2, and the output end of the driving mechanism is respectively connected with one end of the first driving component 7 and one end of the second driving component 8. The driving mechanism comprises a driving device 4, a first swing arm 5 and a second swing arm 6, wherein one end of the driving device 4 is pivoted to the rear bracket 2, a pivot point is b, the other end of the driving device is pivoted with one end of the first swing arm 5, a pivot point is c, the driving device 4 is an automatic telescopic device, and the output end of the driving device is arranged in a telescopic mode. In this embodiment, the driving device 4 is an electric push rod. The middle part of the first swing arm 5 and the middle part of the second swing arm 6 are fixedly connected with each other through a connecting shaft 10, one end of the second swing arm 6 is pivoted with the rear bracket 2, the pivot point is d, the other end of the first swing arm 5 is pivoted with one end of the first driving component 7, the pivot point is e, the other end of the first driving component 7 is pivoted with the seat plate 3, the pivot point f is used for driving the seat plate 3 to approach the rear bracket 2 around the pivot point a, the other end of the second swing arm 6 is pivoted with one end of the second driving component 8, the pivot point g is used for driving the other end of the second driving component 8 to pivot with the front bracket 1, and the pivot point h is used for driving the front bracket 1 to approach the rear bracket 2 around the pivot point a. Specifically, the following are:

referring to fig. 3 and 4, the first driving assembly 7 includes a driving rod 71, a pivoting member 72 and a connecting rod 73, wherein one end of the driving rod 71 is pivoted to the first swing arm 5, the pivoting point is e, the other end is pivoted to the pivoting member 72, the pivoting point is i, the pivoting member 72 is pivoted to the rear bracket 2, and the pivoting point is j. One end of the connecting rod 73 is pivotally connected to the pivot member 72, the pivot point is k, and the other end is pivotally connected to the seat plate 3, and the pivot point is f. By arranging the driving rod 71, the pivoting piece 72 and the connecting rod 73, the swinging force transmitted from the first swinging arm 5 can be converted into a downward pulling force for the seat board 3, so that the purpose of driving the seat board 3 to close to the rear bracket 2 is achieved.

Referring to fig. 3 and 4, the second driving assembly 8 includes a first pull rod 81, one end of the first pull rod 81 is pivotally connected to the second swing arm 6, the pivot point is g, and the other end is pivotally connected to the front bracket 1 and the pivot point h. By arranging the first pull rod 81, the swing force transmitted by the second swing arm 6 can be converted into the pulling force for the front support 1, so that the purpose of driving the front support 1 to approach the rear support 2 is achieved.

As shown in fig. 4 and 5, the folding wheelchair 100 further includes a handrail mechanism 110 and a third driving assembly 120, wherein the handrail mechanism 110 is disposed on the rear bracket 2, and one end of the third driving assembly 120 is connected to an output end of the driving mechanism. Specifically, one end of the third driving assembly 120 is pivotally connected to the second swing arm 6, the pivot point is m, and the other end of the third driving assembly 120 is connected to the armrest mechanism 110, so as to drive the armrest 111 to approach the rear bracket 2. By providing the third driving assembly 120, the armrest mechanism 110 can be synchronously unfolded or folded with the seat board 3 and the front bracket 1, so that the folding is very simple and convenient, and the convenience of use is greatly improved. The armrest mechanism 110 includes an armrest 111, a first link 112, and a second link 113, where the first link 112 and the second link 113 are respectively pivoted to the rear bracket 2, specifically, the lower end of the first link 112 is in a ring structure, the ring structure is coaxial with the central axis of the pivot point a, the pivot points of the second link 113 and the rear bracket 2 are respectively n, the other end of the third driving assembly 120 is pivoted to one of the first link 112 and the second link 113 through a sliding shaft 122, and two hands at two ends of the armrest 111 are respectively pivoted to the upper ends of the first link 112 and the second link 113, and the pivot points are p and q. By arranging the first connecting rod 112 and the second connecting rod 113 between the armrest 111 and the rear bracket 2, the four can form a variable quadrilateral structure, so that the armrest 111 can be folded or unfolded through any one of the first connecting rod 112 and the second connecting rod 113, and the armrest is simple in structure and convenient to control.

As shown in fig. 4, the third driving assembly 120 includes a second pull rod 121, one end of the second pull rod 121 is pivotally connected to the second swing arm 6, the pivot point is m, and the other end is pivotally connected to the armrest mechanism 110 via a sliding shaft 122. The second pull rod 121 can convert the swing force transmitted by the second swing arm 6 into a pulling force on the first link 112 or the second link 113, so as to achieve the purpose of driving the armrest mechanism 110 to fold or unfold.

Referring to fig. 4 again, the folding wheelchair 100 further includes a backrest 130 and a linkage mechanism 140, wherein one end of the backrest 130 is pivotally connected to the seat board 3, a pivot point is r, one end of the linkage mechanism 140 is pivotally connected to the third driving assembly 120 via a sliding shaft 122, the other end of the linkage mechanism 140 is pivotally connected to the backrest 130, and a pivot point is s, so as to drive the backrest 130 to rotate around the pivot point r and approach towards the seat board 3. By providing the linkage mechanism 140, the backrest 130 can be synchronously unfolded or folded with the seat board 3 and the front bracket 1, so that the folding is very simple and convenient, and the convenience of use is greatly improved. More specifically, the linkage mechanism 140 includes a first linkage rod 141, a second linkage rod 142, and a third linkage rod 143, one end of the first linkage rod 141 is connected to the sliding shaft 122, the other end is pivotally connected to the middle part of the second linkage rod 142, and the pivot point is t. One end of the second linkage rod 142 is pivoted to the rear end of the seat plate 3, the pivot point is u, the other end is pivoted to one end of the third linkage rod 143, the pivot point v, and the other end of the third linkage rod 143 is pivoted to the backrest 130, and the pivot point is s. In this way, the driving force of the third driving assembly 120 can be synchronously transmitted to the backrest 130, so that the backrest 130 and the seat plate 3 realize linkage folding.

As shown in fig. 4, the side wall of the upper end of the front support 1 is provided with a through arc hole 1a, the central angle of the arc hole 1a is about 180 degrees, and the arc hole 1a is positioned on one side of the front support 1 close to the rear support 2. The slide shaft 122 slidably passes through the arc-shaped hole 1a. The arc-shaped hole 1a can limit the sliding shaft 122, so that the sliding stability of the sliding shaft 122 is ensured.

As further shown in fig. 1, the folding wheelchair 100 further includes a pedal 150, and the pedal 150 is foldably disposed at the lower end of the front support 1. The pedal 150 may provide a foot rest position for the user, further enhancing user comfort.

In summary, the working principle of the folding wheelchair 100 according to the present utility model is described in detail below with reference to fig. 4, 6 and 7, as follows:

Referring now to fig. 4, the various rods are shown in a deployed configuration when the wheelchair 100 is deployed. Referring to fig. 6 again, when the folding is required, the electric push rod is started to retract the telescopic end of the electric push rod, and the electric push rod drives the first swing arm 5, the connecting shaft 10 and the second swing arm 6 to rotate around the pivot point d. At this time, the other end of the first swing arm 5 drives the first driving component 7, and at the same time, the second swing arm 6 drives the second driving component 8 and the third driving component 120 to act. Specifically, the driving rod 71 pulls the pivot member 72 to rotate around the pivot point j, and the pivot member 72 drives the connecting rod 73, so that the connecting rod 73 pulls the seat board 3, and further the seat board 3 swings in a direction approaching the rear bracket 2. Meanwhile, the first pull rod 81 drives the front bracket 1 under the driving of the second swing arm 6, so that the front bracket 1 swings towards the direction approaching the rear bracket 2. In addition, the second pull rod 121 is driven by the second swing arm 6 to drive the sliding shaft 122 to move along the arc-shaped hole 1a, at this time, the sliding shaft 122 drives the first connecting rod 112 to swing around the pivot point a and close towards the direction of the rear bracket 2, and at the same time, the second connecting rod 113 swings around the pivot point n and closes towards the direction of the rear bracket 2 under the action of linkage. Meanwhile, the sliding shaft 122 pushes the first linkage rod 141, the first linkage rod 141 pushes the second linkage rod 142 to swing backwards around the pivot point u, and the second linkage rod 142 drives the third linkage rod 143, so that the third linkage rod 143 pushes the backrest 130 to rotate around the pivot point r, and the backrest 130 approaches towards the direction of the seat board 3. As shown in fig. 7, when the output end of the electric push rod is completely retracted, the seat plate 3, the front frame 1, the armrest 111, and the backrest 130 are completely closed to the rear frame 2, and the folding wheelchair 100 is completely folded. When the folding wheelchair 100 needs to be unfolded, only the output end of the electric push rod needs to be controlled to stretch out, at this time, the action of each rod piece is opposite to the folding action, and finally, after the output end of the electric push rod stretches out completely, the folding wheelchair 100 can be unfolded completely.

Compared with the prior art, the utility model has the advantages that the front support 1 and the seat board 3 are pivoted on the rear support 2, the first swing arm 5 and the second swing arm 6 which are mutually connected are arranged on the rear support 2, the first driving component 7 is arranged between the first swing arm 5 and the seat board 3, and the second driving component 8 is arranged between the second swing arm 6 and the front support 1, so that the first swing arm 5 drives the first driving component 7 by utilizing the driving device 4 to drive the seat board 3 to open or fold relative to the rear support 2, and simultaneously, the second swing arm 6 drives the second driving component 8 to drive the front support 1 to open or fold relative to the rear support 2. In addition, a third driving assembly 120 is disposed between the second swing arm 6 and the armrest mechanism 110, and a linkage mechanism 140 is disposed between the third driving assembly 120 and the backrest 130, so that the wheelchair 100 can be folded to fold the armrest 111 and the backrest 130. Thus, the whole folding wheelchair 100 can be unfolded or folded, the whole unfolding or folding process is linked, and the folding is simple and convenient to use.

In addition, the folding wheelchair 100 of the present utility model also has the second embodiment, specifically, as follows:

The folding wheelchair 100 of the second embodiment includes a front frame 1, a rear frame 2, a seat plate 3, a driving mechanism and a first driving assembly 7, wherein the driving mechanism includes a driving device 4 and a first swing arm 5, and the structures of the front frame 1, the rear frame 2, the seat plate 3, the driving device 4, the first swing arm 5 and the first driving assembly 7 are the same as those of the first embodiment. The front support 1 is connected with the rear support 2, the seat plate 3 is pivoted with the rear support 2, the driving mechanism is arranged on the rear support 2, and the output end of the driving mechanism is respectively connected with one end of the first driving component 7. Specifically, one end of the driving device 4 is pivoted to the rear bracket 2, the other end of the driving device is pivoted to one end of the first swing arm 5, the first swing arm 5 is pivoted to the rear bracket 2, the other end of the first swing arm 5 is pivoted to one end of the first driving component 7, and the other end of the first driving component 7 is pivoted to the seat board 3 to drive the seat board 3 to approach the rear bracket 2. The seat board 3 can be folded by the embodiment, and the folding is simple and convenient to use.

The folding wheelchair 100 of the present utility model also has a third embodiment, specifically, as follows:

The folding wheelchair 100 of the present embodiment includes a front frame 1, a rear frame 2, a seat plate 3, a driving mechanism, a first driving assembly 7, a handrail mechanism 110, and a third driving assembly 120, wherein the driving mechanism includes a driving device 4, a first swing arm 5, and a second swing arm 6, and the front frame 1, the rear frame 2, the seat plate 3, the driving device 4, the first swing arm 5, the second swing arm 6, the first driving assembly 7, the handrail mechanism 110, and the third driving assembly 120 have the same structure as the first embodiment. The front support 1 is connected with the rear support 2, the seat board 3 is pivoted with the rear support 2, the driving mechanism is arranged on the rear support 2, and the output end of the driving mechanism is respectively connected with one end of the first driving assembly 7 and one end of the third driving assembly 120. Specifically, one end of the driving device 4 is pivoted to the rear bracket 2, the other end is pivoted to one end of the first swing arm 5, the first swing arm 5 is fixedly connected with the second swing arm 6, the second swing arm 6 is pivoted to the rear bracket 2, the other end of the first swing arm 5 is pivoted to one end of the first driving component 7, the other end of the first driving component 7 is pivoted to the seat plate 3 to drive the seat plate 3 to approach the rear bracket 2, the armrest mechanism 110 is arranged on the rear bracket 2, one end of the third driving component 120 is pivoted to the second swing arm 6, and the other end of the third driving component 120 is connected with the armrest mechanism 110 to drive the armrest 111 to approach the rear bracket 2. The seat board 3, the armrests 111 and the backrest 130 can be folded by the embodiment, and the folding is simple and convenient to use.

The folding wheelchair 100 of the present utility model also has the fourth embodiment, specifically, as follows:

The folding wheelchair 100 of the present embodiment includes a front frame 1, a rear frame 2, a seat plate 3, a driving mechanism, a second driving assembly 8, a handrail mechanism 110, and a third driving assembly 120, wherein the driving mechanism includes a driving device 4, a first swing arm 5, and a second swing arm 6, and the front frame 1, the rear frame 2, the seat plate 3, the driving device 4, the first swing arm 5, the second swing arm 6, the second driving assembly 8, the handrail mechanism 110, and the third driving assembly 120 have the same structure as the first embodiment. The front support 1 is pivoted with the rear support 2, the seat board 3 is arranged on the rear support 2, the driving mechanism is arranged on the rear support 2, and the output end of the driving mechanism is respectively connected with one end of the second driving assembly 8 and one end of the third driving assembly 120. Specifically, one end of the driving device 4 is pivotally connected to the rear bracket 2, the other end is pivotally connected to one end of the first swing arm 5, the first swing arm 5 is fixedly connected to the second swing arm 6, one end of the second swing arm 6 is pivotally connected to the rear bracket 2, the other end of the second swing arm 6 is pivotally connected to one end of the second driving assembly 8, the other end of the second driving assembly 8 is pivotally connected to the front bracket 1 to drive the front bracket 1 to approach the rear bracket 2, the armrest mechanism 110 is disposed on the rear bracket 2, one end of the third driving assembly 120 is pivotally connected to the second swing arm 6, and the other end of the third driving assembly 120 is connected to the armrest mechanism 110 to drive the armrest 111 to approach the rear bracket 2. The front support 1 and the armrest 111 can be folded by the embodiment, and the folding is simple and the use is convenient.

The foregoing disclosure is merely illustrative of the principles of the present utility model, and thus, it is intended that the scope of the utility model be limited thereto and not by this disclosure, but by the claims appended hereto.

Claims (16)

1. A folding wheelchair is characterized by comprising a front support, a rear support, a seat plate, a driving mechanism, a first driving assembly and a second driving assembly, wherein the front support is pivoted with the rear support, the seat plate is pivoted with the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the first driving assembly, the other end of the first driving assembly is connected with the seat plate so as to drive the seat plate to be close to the rear support, the output end of the driving mechanism is connected with one end of the second driving assembly, the other end of the second driving assembly is connected with the front support so as to drive the front support to be close to the rear support, the driving mechanism comprises a driving device, a first swing arm and a second swing arm, one end of the driving device is pivoted with the rear support, the other end of the driving device is pivoted with one end of the first swing arm, the first driving assembly comprises a driving rod, a pivoting piece and a connecting rod, the other end of the driving rod is connected with the seat plate so as to drive the seat plate to be close to the rear support, the other end of the driving rod is pivoted with the first swing arm, and the other end of the first swing arm is pivoted with the first swing arm, and the other end of the driving device is pivoted with the first swing arm, and the first swing arm is pivoted with the first swing arm to be pivoted with the first end.

2. The folding wheelchair of claim 1 further comprising a handrail mechanism and a third driving assembly, wherein the handrail mechanism is disposed on the rear support, one end of the third driving assembly is connected to an output end of the driving mechanism, and the other end of the third driving assembly is connected to the handrail mechanism to drive the handrail to approach the rear support.

3. The folding wheelchair of claim 2, wherein the armrest mechanism comprises an armrest, a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are respectively pivoted on the rear bracket, the other end of the third driving component is pivoted with one of the first connecting rod and the second connecting rod through a sliding shaft, and two hands at two ends of the armrest are respectively pivoted with the upper ends of the first connecting rod and the second connecting rod.

4. The folding wheelchair of claim 2 wherein the third drive assembly comprises a second pull rod having one end pivotally connected to the output end of the drive mechanism and the other end pivotally connected to the armrest mechanism via a sliding shaft.

5. The folding wheelchair of claim 1 further comprising a backrest, a third drive assembly and a linkage mechanism, wherein one end of the backrest is pivoted to the seat plate, one end of the third drive assembly is connected with the output end of the drive mechanism, the other end of the third drive assembly is pivoted to one end of the linkage mechanism through a sliding shaft, and the other end of the linkage mechanism is pivoted to the backrest to drive the backrest to approach the seat plate.

6. The folding wheelchair of claim 5 wherein the third drive assembly comprises a second pull rod having one end pivotally connected to the output end of the drive mechanism and the other end connected to the sliding shaft.

7. The folding wheelchair of claim 3 or 5 wherein the upper end of the front frame is provided with an arcuate aperture through which the sliding shaft slidably passes.

8. The folding wheelchair of claim 5 wherein the linkage comprises a first linkage rod, a second linkage rod and a third linkage rod, wherein one end of the first linkage rod is connected to the sliding shaft, the other end of the first linkage rod is pivoted to the second linkage rod, one end of the second linkage rod is pivoted to the seat plate, the other end of the second linkage rod is pivoted to one end of the third linkage rod, and the other end of the third linkage rod is pivoted to the backrest.

9. The folding wheelchair of claim 1 further comprising wheels disposed on the front and rear frames, respectively.

10. The folding wheelchair of claim 1 further comprising a pedal foldably disposed at a lower end of the front frame.

11. The folding wheelchair of claim 1 wherein the output end of the drive means is telescopically arranged.

12. A folding wheelchair is characterized by comprising a front support, a rear support, a seat plate, a driving mechanism and a first driving assembly, wherein the front support is connected with the rear support, the seat plate is pivoted with the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the first driving assembly, the other end of the first driving assembly is connected with the seat plate so as to drive the seat plate to close to the rear support, the driving mechanism comprises a driving device and a first swing arm, one end of the driving device is pivoted with the rear support, the other end of the driving device is pivoted with one end of the first swing arm, the first driving assembly comprises a driving rod, a pivoting piece and a connecting rod, one end of the driving rod is pivoted with the first swing arm, the other end of the driving rod is pivoted with the pivoting piece, and one end of the connecting rod is pivoted with the rear support, and the other end of the connecting rod is pivoted with the seat plate.

13. The folding wheelchair of claim 12 further comprising a second swing arm fixedly connected to the second swing arm, a backrest, a third drive assembly and a linkage, wherein one end of the backrest is pivotally connected to the seat plate, one end of the third drive assembly is pivotally connected to the second swing arm, the other end of the third drive assembly is pivotally connected to one end of the linkage via a sliding shaft, and the other end of the linkage is pivotally connected to the backrest to drive the backrest toward the seat plate.

14. A folding wheelchair is characterized by comprising a front support, a rear support, a seat plate, a driving mechanism, a first driving assembly, a handrail mechanism and a third driving assembly, wherein the front support is connected with the rear support, the seat plate is pivoted with the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the first driving assembly, the other end of the first driving assembly is connected with the seat plate so as to drive the seat plate to be close to the rear support, the handrail mechanism is arranged on the rear support, one end of the third driving assembly is connected with the output end of the driving mechanism, the other end of the third driving assembly is connected with the handrail mechanism so as to drive the handrail to be close to the rear support, the driving mechanism comprises a driving device, a first swing arm and a second swing arm, one end of the driving device is pivoted with one end of the rear support, the other end of the first swing arm is pivoted with one end of the first swing arm, the other end of the second swing arm is fixedly connected with the seat plate so as to drive the seat plate to be close to the rear support, one end of the handrail mechanism is pivoted with the second swing arm, the other end of the driving rod is pivoted with the first swing arm, the other end of the driving rod is pivoted with the second swing arm, and the driving rod is pivoted with the other end of the driving rod.

15. The folding wheelchair of claim 14 wherein said third drive assembly includes a second lever having one end pivotally connected to said second swing arm and the other end pivotally connected to said armrest mechanism.

16. A folding wheelchair is characterized by comprising a front support, a rear support, a seat plate, a driving mechanism, a second driving assembly, a handrail mechanism and a third driving assembly, wherein the front support is pivoted with the rear support, the seat plate is arranged on the rear support, the driving mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the second driving assembly, the other end of the second driving assembly is pivoted with the front support so as to drive the front support to be close to the rear support, the handrail mechanism is arranged on the rear support, the output end of the driving mechanism is connected with one end of the third driving assembly, the other end of the third driving assembly is connected with the handrail mechanism so as to drive the handrail to be close to the rear support, the driving mechanism comprises a driving device, a first swing arm and a second swing arm, one end of the driving device is pivoted with one end of the rear support, the other end of the driving device is pivoted with one end of the first swing arm, the first swing arm is fixedly connected with the second swing arm, one end of the second swing arm is pivoted with the second swing arm, and the second swing arm is pivoted with the driving assembly respectively.