Folding wheelchair

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. The front bracket is pivoted with the rear bracket; the seat plate is pivoted with the rear bracket; the driving mechanism is arranged on the rear bracket; 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 get close to the direction of the rear bracket; 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 folding wheelchair has the advantages of being easy to fold and convenient to use.

Description

Technical Field

[0001] The utility model relates to a wheelchair, in particular to a folding wheelchair. Background Art

[0002] Wheelchairs are generally large in size and are usually folded to reduce their size for easy storage. However, the folding frames of existing foldable wheelchairs are relatively complex in design, and the folding process involves many steps, making the operation cumbersome. Therefore, for people with limited mobility or the elderly, it is not convenient to use the wheelchair. Utility Model Content

[0003] The purpose of the utility model is to provide a folding wheelchair which is simple to fold and easy to use.

[0004] The second purpose of the utility model is to provide a folding wheelchair that is simple to fold and easy to use.

[0005] The third object of the present invention is to provide a foldable wheelchair that is simple to fold and easy to use.

[0006] A fourth object of the present invention is to provide a foldable wheelchair that is simple to fold and easy to use.

[0007] In order to achieve the above-mentioned purpose, the folding wheelchair provided by the present invention includes a front bracket, a rear bracket, a seat plate, a driving mechanism, a first driving assembly and a second driving assembly; the front bracket is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the driving mechanism is arranged on the rear bracket; the output end of the driving mechanism is connected to one end of the first driving assembly; the other end of the first driving assembly is connected to the seat plate to drive the seat plate toward the rear bracket; the output end of the driving mechanism is connected to one end of the second driving assembly; the other end of the second driving assembly is connected to the front bracket to drive the front bracket toward the rear bracket.

[0008] Compared with the prior art, the present invention pivotally connects the front bracket and the seat plate to the rear bracket, and provides a driving mechanism on the rear bracket, and further provides a first driving assembly between the driving mechanism and the seat plate, and a second driving assembly between the driving mechanism and the front bracket. Therefore, the driving mechanism drives the first driving assembly, thereby driving the seat plate to be opened or folded relative to the rear bracket; at the same time, the second driving assembly is driven, thereby driving the front bracket to be opened or folded relative to the rear bracket; thus, the entire folding wheelchair can be unfolded or folded, and the entire unfolding or folding process is carried out in a linked manner, making folding simple and easy to use.

[0009] Preferably, the driving mechanism includes a driving device and a first swing arm, one end of the driving device is pivotally connected to the rear bracket, and the other end is pivotally connected to one end of the first swing arm; the other end of the first swing arm is pivotally connected to one end of the first driving component.

[0010] Specifically, the first drive assembly includes a drive rod, a pivotal member, and a connecting rod. One end of the drive rod is pivotally connected to the first swing arm, and the other end is pivotally connected to the pivotal member; the pivotal member is pivotally connected to the rear bracket; one end of the connecting rod is pivotally connected to the pivotal member, and the other end is pivotally connected to the seat plate. By arranging the drive rod, pivotal member, and connecting rod, the swinging force transmitted from the first swing arm can be converted into a downward pulling force on the seat plate, thereby achieving the purpose of driving the seat plate toward the rear bracket.

[0011] Specifically, the driving mechanism further includes a second swing arm, the first swing arm is fixedly connected to the second swing arm, one end of the second swing arm is pivotally connected to the rear bracket; the second swing arm is pivotally connected to the second driving assembly.

[0012] Preferably, the driving mechanism includes a driving device and a second swing arm, one end of the driving device is pivotally connected to the rear bracket, and the other end is pivotally connected to one end of the second swing arm; the second swing arm is pivotally connected to the second driving assembly.

[0013] Preferably, the second drive assembly includes a first pull rod, one end of which is pivotally connected to the second swing arm and the other end is pivotally connected to the front bracket. By providing the first pull rod, the swinging force transmitted by the second swing arm can be converted into a pulling force on the front bracket, thereby achieving the purpose of driving the front bracket to move closer to the rear bracket.

[0014] Preferably, the folding wheelchair further includes an armrest mechanism and a third drive assembly. The armrest mechanism is mounted on the rear frame, one end of the third drive assembly is connected to the output end of the drive mechanism, and the other end of the third drive assembly is connected to the armrest mechanism to drive the armrest toward the rear frame. The provision of the third drive assembly allows the armrest mechanism to be deployed or retracted synchronously with the seat plate and the front frame, making folding very simple and greatly improving ease of use.

[0015] Specifically, the armrest mechanism includes an armrest, a first connecting rod, and a second connecting rod. The first connecting rod and the second connecting rod are respectively pivotally connected to the rear bracket. The other end of the third driving assembly is pivotally connected to one of the first connecting rod and the second connecting rod via a sliding shaft. The two ends of the armrest are pivotally connected to the upper ends of the first connecting rod and the second connecting rod, respectively. By arranging the first connecting rod and the second connecting rod between the armrest and the rear bracket, the four links form a variable quadrilateral structure. Therefore, the armrest can be folded or unfolded by either the first connecting rod or the second connecting rod, resulting in a simple structure and convenient control.

[0016] Specifically, the third drive assembly includes a second pull rod, one end of which is pivotally connected to the output end of the drive mechanism and the other end of which is pivotally connected to the armrest mechanism via a sliding shaft. The second pull rod can convert the swinging force transmitted by the second swing arm into a pulling force on the first connecting rod or the second connecting rod, thereby achieving the purpose of driving the armrest mechanism to fold or unfold.

[0017] Preferably, the folding wheelchair further includes a backrest, a third drive assembly, and a linkage mechanism. One end of the backrest is pivotally connected to the seat plate, one end of the third drive assembly is connected to the output end of the drive mechanism, the other end of the third drive assembly is pivotally connected to one end of the linkage mechanism via a sliding shaft, and the other end of the linkage mechanism is pivotally connected to the backrest to drive the backrest toward the seat plate. By providing the third drive assembly and linkage mechanism, the backrest can be synchronously expanded or collapsed with the seat plate and the front bracket, making folding very simple and greatly improving the convenience of use.

[0018] Specifically, the third drive assembly includes a second pull rod, one end of which is pivotally connected to the output end of the drive mechanism and the other end is connected to the sliding shaft. The second pull rod and the linkage mechanism can apply a thrust to the backrest, thereby driving the backrest to fold or unfold toward the seat plate.

[0019] Specifically, an arc-shaped hole is provided at the upper end of the front bracket, and the sliding shaft slides through the arc-shaped hole. The arc-shaped hole can limit the sliding shaft and ensure the sliding stability of the sliding shaft.

[0020] Specifically, the linkage mechanism includes a first linkage rod, a second linkage rod, and a third linkage rod. One end of the first linkage rod is connected to the sliding shaft, and the other end is pivotally connected to the second linkage rod. One end of the second linkage rod is pivotally connected to the seat plate, and the other end is pivotally connected to one end of the third linkage rod. The other end of the third linkage rod is pivotally connected to the backrest. This allows the driving force of the third drive assembly to be synchronously transmitted to the backrest, so that the backrest and the seat plate can be folded in a coordinated manner.

[0021] Preferably, the folding wheelchair further includes wheels, and the wheels are respectively arranged on the front bracket and the rear bracket.

[0022] Preferably, the foldable wheelchair further comprises a pedal, which is foldably arranged at the lower end of the front bracket. The pedal can provide a place for the user to place his feet, further improving the user's comfort.

[0023] Specifically, the output end of the driving device is arranged to be telescopic.

[0024] A folding wheelchair comprises a front bracket, a rear bracket, a seat plate, a drive mechanism and a first drive assembly; the front bracket is connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the drive mechanism is arranged on the rear bracket; the output end of the drive mechanism is connected to one end of the first drive assembly; the other end of the first drive assembly is connected to the seat plate to drive the seat plate toward the rear bracket.

[0025] A folding wheelchair comprises a front bracket, a rear bracket, a seat plate, a driving mechanism, a first driving assembly, an armrest mechanism and a third driving assembly; the front bracket is connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the driving mechanism is arranged on the rear bracket; the output end of the driving mechanism is connected to one end of the first driving assembly; the other end of the first driving assembly is connected to the seat plate to drive the seat plate toward the rear bracket; the armrest mechanism is arranged on the rear bracket, one end of the third driving assembly is connected to the output end of the driving mechanism, and the other end of the third driving assembly is connected to the armrest mechanism to drive the armrest toward the rear bracket.

[0026] A folding wheelchair comprises a front bracket, a rear bracket, a seat plate, a driving mechanism, a second driving assembly, an armrest mechanism and a third driving assembly; the front bracket is pivotally connected to the rear bracket; the seat plate is arranged on the rear bracket; the driving mechanism is arranged on the rear bracket; the output end of the driving mechanism is connected to one end of the second driving assembly, and the other end of the second driving assembly is pivotally connected to the front bracket to drive the front bracket toward the rear bracket; the armrest mechanism is arranged on the rear bracket, the output end of the driving mechanism is connected to one end of the third driving assembly, and the other end of the third driving assembly is connected to the armrest mechanism to drive the armrest toward the rear bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional diagram of the folding wheelchair of the utility model when it is unfolded.

[0028] Figure 2 It is a diagram of the internal structure of the folding wheelchair of the present utility model.

[0029] Figure 3 It is a half-section view of the internal structure of the folding wheelchair of the present invention.

[0030] Figure 4 It is a side view of the internal structure of the folding wheelchair of the utility model.

[0031] Figure 5 It is a side view of the other side of the internal structure of the folding wheelchair of the present invention.

[0032] Figure 6 This is a diagram of the internal structure of the foldable wheelchair of the utility model in a half-folded state.

[0033] Figure 7 This is a diagram of the fully folded state of the foldable wheelchair of the utility model. DETAILED DESCRIPTION

[0034] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.

[0035] like Figures 1 to 7 As shown in the figure, the structure of the first embodiment of the folding wheelchair 100 of the present invention is shown.

[0036] See also Figures 1 to 4The folding wheelchair 100 of the present invention includes a front frame 1, a rear frame 2, a seat plate 3, a drive mechanism, a first drive assembly 7, a second drive assembly 8, and wheels 9. The upper end of the front frame 1 is pivotally connected to the front end of the rear frame 2, forming a herringbone structure, with the pivot point a. The wheels 9 are respectively disposed at the lower end of the front frame 1 and the rear end of the rear frame 2. The front end of the seat plate 3 is pivotally connected to the front end of the rear frame 2, and the pivot axis is coaxial with the pivot axis between the front frame 1 and the rear frame 2. The drive mechanism is disposed on the rear frame 2; the output end of the drive mechanism is respectively connected to one end of the first drive assembly 7 and one end of the second drive assembly 8. Specifically, the drive mechanism includes a drive device 4, a first swing arm 5, and a second swing arm 6. One end of the drive device 4 is pivotally connected to the rear frame 2 at a pivot point b, and the other end is pivotally connected to one end of the first swing arm 5 at a pivot point c. The drive device 4 is an automatic retractor, and its output end is retractably disposed. 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 to each other via a connecting shaft 10. One end of the second swing arm 6 is pivotally connected to the rear bracket 2, with the pivot point d being the other end of the first swing arm 5 pivotally connected to one end of the first driving assembly 7, with the pivot point e being the other end of the first driving assembly 7 pivotally connected to the seat plate 3, with the pivot point f being the other end, thereby driving the seat plate 3 to move closer to the rear bracket 2 around the pivot point a; the other end of the second swing arm 6 is pivotally connected to one end of the second driving assembly 8, with the pivot point g being the other end of the second driving assembly 8 pivotally connected to the front bracket 1, with the pivot point h being the other end, thereby driving the front bracket 1 to move closer to the rear bracket 2 around the pivot point a. Specifically, as follows:

[0037] See also Figure 3 and Figure 4 The first drive assembly 7 includes a drive rod 71, a pivot member 72, and a connecting rod 73. One end of the drive rod 71 is pivotally connected to the first swing arm 5 at a pivot point e, and the other end is pivotally connected to the pivot member 72 at a pivot point i. The pivot member 72 is pivotally connected to the rear bracket 2 at a pivot point j. One end of the connecting rod 73 is pivotally connected to the pivot member 72 at a pivot point k, and the other end is pivotally connected to the seat plate 3 at a pivot point f. By configuring the drive rod 71, pivot member 72, and connecting rod 73, the swinging force transmitted from the first swing arm 5 is converted into a downward pulling force on the seat plate 3, thereby driving the seat plate 3 toward the rear bracket 2.

[0038] See also Figure 3 and Figure 4The second drive 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 at a pivot point g, and the other end is pivotally connected to the front bracket 1 at a pivot point h. By providing the first pull rod 81, the swinging force transmitted by the second swing arm 6 is converted into a pulling force on the front bracket 1, thereby driving the front bracket 1 toward the rear bracket 2.

[0039] like Figure 4 and Figure 5 As shown, the folding wheelchair 100 also includes an armrest mechanism 110 and a third drive assembly 120. The armrest mechanism 110 is mounted on the rear support 2, and one end of the third drive assembly 120 is connected to the output end of the drive mechanism. Specifically, one end of the third drive assembly 120 is pivotally connected to the second swing arm 6 at a pivot point m. The other end of the third drive assembly 120 is connected to the armrest mechanism 110 to drive the armrest 111 toward the rear support 2. The provision of the third drive assembly 120 allows the armrest mechanism 110 to be deployed or retracted synchronously with the seat plate 3 and the front support 1, making folding very simple and greatly improving ease of use. The armrest mechanism 110 includes an armrest 111, a first link 112 and a second link 113. 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 an annular structure, and the annular 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 n respectively. The other end of the third drive component 120 is pivoted to one of the first link 112 and the second link 113 through a sliding shaft 122. The 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 a first connecting rod 112 and a second connecting rod 113 between the armrest 111 and the rear bracket 2, the four form a variable quadrilateral structure, so that the purpose of folding or unfolding the armrest 111 can be achieved by either the first connecting rod 112 or the second connecting rod 113, which has a simple structure and is easy to control.

[0040] For example Figure 4 As shown, 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 at a pivot point 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 swinging force transmitted by the second swing arm 6 into a pulling force on the first connecting rod 112 or the second connecting rod 113, thereby achieving the purpose of driving the armrest mechanism 110 to fold or unfold.

[0041] See also Figure 4The folding wheelchair 100 also includes a backrest 130 and a linkage mechanism 140. One end of the backrest 130 is pivotally connected to the seat plate 3 at a pivot point r. One end of the linkage mechanism 140 is pivotally connected to the third drive assembly 120 via a sliding shaft 122. The other end of the linkage mechanism 140 is pivotally connected to the backrest 130 at a pivot point s, thereby driving the backrest 130 to rotate about the pivot point r and move toward the seat plate 3. By providing the linkage mechanism 140, the backrest 130 can be deployed or folded synchronously with the seat plate 3 and the front bracket 1, making folding very simple and greatly improving the convenience of use. 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, and the other end is pivotally connected to the middle portion of the second linkage rod 142 at a pivot point t. One end of the second linkage rod 142 is pivotally connected to the rear end of the seat plate 3 at a pivot point u, and the other end is pivotally connected to one end of the third linkage rod 143 at a pivot point v. The other end of the third linkage rod 143 is pivotally connected to the backrest 130 at a pivot point s. This allows the driving force of the third drive assembly 120 to be synchronously transmitted to the backrest 130, allowing the backrest 130 to fold in tandem with the seat plate 3.

[0042] like Figure 4 The upper sidewall of the front bracket 1 is provided with a through-hole 1a. The central angle of the hole 1a is approximately 180 degrees. The hole 1a is located on the side of the front bracket 1 near the rear bracket 2. The sliding shaft 122 slides through the hole 1a. The hole 1a can limit the sliding shaft 122, ensuring its sliding stability.

[0043] For example Figure 1 As shown, the folding wheelchair 100 further includes a pedal 150, which is foldably disposed at the lower end of the front frame 1. The pedal 150 can provide a place for the user to place his feet, further improving the user's comfort.

[0044] Combining the above and Figure 4 、 Figure 6 and Figure 7 The working principle of the folding wheelchair 100 of the present invention is described in detail below:

[0045] Please refer to Figure 4 first, which shows the status of each rod when the folding wheelchair 100 is unfolded. Figure 6When folding is required, the electric push rod is activated, causing the telescopic end of the electric push rod to retract, 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 drive assembly 7, while the second swing arm 6 drives the second drive assembly 8 and the third drive assembly 120. Specifically, the drive 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 plate 3, thereby causing the seat plate 3 to swing toward the rear bracket 2. At the same time, the first pull rod 81, driven by the second swing arm 6, drives the front bracket 1, causing the front bracket 1 to swing toward the rear bracket 2. In addition, the second pull rod 121 drives the sliding shaft 122 to move along the arc hole 1a under the drive of the second swing arm 6. At this time, the sliding shaft 122 drives the first link 112 to swing around the pivot point a and move toward the rear bracket 2. At the same time, the second link 113 swings around the pivot point n and moves toward the rear bracket 2 under the action of the linkage. At the same time, the sliding shaft 122 pushes the first linkage rod 141, and the first linkage rod 141 pushes the second linkage rod 142 to swing backward around the pivot point u. 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 moves toward the seat plate 3. For example Figure 7 As shown, when the output end of the electric push rod is fully retracted, the seat plate 3, the front frame 1, the armrest 111, and the backrest 130 are completely close to the rear frame 2, and the folding wheelchair 100 is now completely folded. When the folding wheelchair 100 needs to be unfolded, it is only necessary to control the output end of the electric push rod to extend. At this time, the movements of the various rods are opposite to the above-mentioned folding movements. Finally, when the output end of the electric push rod is fully extended, the folding wheelchair 100 is fully unfolded.

[0046] Compared to the prior art, the present invention pivotally connects the front frame 1 and seat plate 3 to the rear frame 2, and provides a first swing arm 5 and a second swing arm 6 connected to each other on the rear frame 2. Furthermore, a first drive assembly 7 is provided between the first swing arm 5 and the seat plate 3, and a second drive assembly 8 is provided between the second swing arm 6 and the front frame 1. Thus, by utilizing the drive device 4 to drive the first swing arm 5 and the second swing arm 6, the first swing arm 5 drives the first drive assembly 7, thereby driving the seat plate 3 to open or fold relative to the rear frame 2; simultaneously, the second swing arm 6 drives the second drive assembly 8, thereby driving the front frame 1 to open or fold relative to the rear frame 2. Furthermore, a third drive assembly 120 is provided between the second swing arm 6 and the armrest mechanism 110, and a linkage mechanism 140 is provided between the third drive assembly 120 and the backrest 130, so that the folding wheelchair 100 can simultaneously fold the armrests 111 and the backrest 130. Therefore, the entire folding wheelchair 100 can be unfolded or folded, and the entire unfolding or folding process is carried out in a linked manner, making folding simple and very convenient to use.

[0047] In addition, the folding wheelchair 100 of the present invention also has a second embodiment, specifically as follows:

[0048] The folding wheelchair 100 of the second embodiment includes a front frame 1, a rear frame 2, a seat plate 3, a drive mechanism, and a first drive assembly 7. The drive mechanism includes a drive device 4 and a first swing arm 5. The structures of the front frame 1, rear frame 2, seat plate 3, drive device 4, first swing arm 5, and first drive assembly 7 are the same as those of the first embodiment. The front frame 1 is connected to the rear frame 2; the seat plate 3 is pivotally connected to the rear frame 2; the drive mechanism is disposed on the rear frame 2; and the output ends of the drive mechanism are respectively connected to one end of the first drive assembly 7. Specifically, one end of the drive device 4 is pivotally connected to the rear frame 2, and the other end is pivotally connected to one end of the first swing arm 5; the first swing arm 5 is pivotally connected relative to the rear frame 2; the other end of the first swing arm 5 is pivotally connected to one end of the first drive assembly 7; and the other end of the first drive assembly 7 is pivotally connected to the seat plate 3 to drive the seat plate 3 toward the rear frame 2. This embodiment allows the seat plate 3 to fold, making folding simple and convenient.

[0049] The folding wheelchair 100 of the present invention also has a third embodiment, specifically as follows:

[0050] The folding wheelchair 100 of this embodiment includes a front frame 1, a rear frame 2, a seat plate 3, a drive mechanism, a first drive assembly 7, an armrest mechanism 110, and a third drive assembly 120. The drive mechanism includes a drive device 4, a first swing arm 5, and a second swing arm 6. The structures of the front frame 1, rear frame 2, seat plate 3, drive device 4, first swing arm 5, second swing arm 6, first drive assembly 7, armrest mechanism 110, and third drive assembly 120 are the same as those of the first embodiment. The front frame 1 is connected to the rear frame 2; the seat plate 3 is pivotally connected to the rear frame 2; the drive mechanism is disposed on the rear frame 2; and the output end of the drive mechanism is connected to one end of the first drive assembly 7 and one end of the third drive assembly 120, respectively. Specifically, one end of the drive device 4 is pivotally connected to the rear bracket 2, and 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, and the second swing arm 6 is pivotally connected to the rear bracket 2; the other end of the first swing arm 5 is pivotally connected to one end of the first drive assembly 7; the other end of the first drive assembly 7 is pivotally connected to the seat plate 3 to drive the seat plate 3 toward the rear bracket 2; the armrest mechanism 110 is disposed on the rear bracket 2, one end of the third drive assembly 120 is pivotally connected to the second swing arm 6, and the other end of the third drive assembly 120 is connected to the armrest mechanism 110 to drive the armrest 111 toward the rear bracket 2. This embodiment allows the seat plate 3, armrest 111, and backrest 130 to be folded, making folding simple and convenient.

[0051] The folding wheelchair 100 of the present invention also has a fourth embodiment, specifically as follows:

[0052] The folding wheelchair 100 of this embodiment includes a front frame 1, a rear frame 2, a seat plate 3, a drive mechanism, a second drive assembly 8, an armrest mechanism 110, and a third drive assembly 120. The drive mechanism includes a drive device 4, a first swing arm 5, and a second swing arm 6. The front frame 1, rear frame 2, seat plate 3, drive device 4, first swing arm 5, second swing arm 6, second drive assembly 8, armrest mechanism 110, and third drive assembly 120 have the same structure as in the first embodiment. The front frame 1 is pivotally connected to the rear frame 2; the seat plate 3 is mounted on the rear frame 2; the drive mechanism is mounted on the rear frame 2; and the output end of the drive mechanism is connected to one end of the second drive assembly 8 and one end of the third drive assembly 120, respectively. Specifically, one end of the driving device 4 is pivotally connected to the rear bracket 2, and 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, and 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 toward the rear bracket 2; the armrest mechanism 110 is provided 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 toward the rear bracket 2. This embodiment allows the front bracket 1 and the armrest 111 to be folded, which is simple to fold and convenient to use.

[0053] The above disclosure is only a preferred embodiment of the present invention and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A folding wheelchair, characterized in that: The invention comprises a front bracket, a rear bracket, a seat plate, a driving mechanism, a first driving assembly and a second driving assembly; the front bracket is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the driving mechanism is arranged on the rear bracket; the output end of the driving mechanism is connected to one end of the first driving assembly; the other end of the first driving assembly is connected to the seat plate to drive the seat plate to move closer to the rear bracket; the output end of the driving mechanism is connected to one end of the second driving assembly; the other end of the second driving assembly is connected to the front bracket to drive the front bracket to move closer to the rear bracket; the driving mechanism comprises a driving device, a first driving assembly and a second driving assembly; the front bracket is pivotally connected to the rear bracket; the seat plate is pivotally connected ... device comprises a first driving device, a second driving assembly and a second driving assembly; the front bracket is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the seat plate is pivotally connected to the rear bracket A swing arm and a second swing arm, one end of the driving device is pivoted to the rear bracket, and the other end is pivoted to one end of the first swing arm; the first driving component includes a driving rod, a pivot and a connecting rod, one end of the driving rod is pivoted to the first swing arm, and the other end is pivoted to the pivot; the pivot is pivoted to the rear bracket; one end of the connecting rod is pivoted to the pivot, and the other end is pivoted to the seat plate; the second swing arm is fixedly connected to the first swing arm, and one end of the second swing arm is pivoted to the rear bracket; the second driving component includes a first pull rod, one end of the first pull rod is pivoted to the second swing arm, and the other end is pivoted to the front bracket.

2. The folding wheelchair according to claim 1, characterized in that: The folding wheelchair also includes an armrest mechanism and a third driving assembly. The armrest mechanism is arranged on the rear bracket, one end of the third driving assembly is connected to the output end of the driving mechanism, and the other end of the third driving assembly is connected to the armrest mechanism to drive the armrest to move toward the rear bracket.

3. The folding wheelchair according to claim 2, characterized in that: The armrest mechanism includes an armrest, a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are respectively pivoted to the rear bracket, the other end of the third driving component is pivoted to one of the first connecting rod and the second connecting rod through a sliding shaft, and the two ends of the armrest are respectively pivoted to the upper ends of the first connecting rod and the second connecting rod.

4. The folding wheelchair according to claim 2, characterized in that: The third driving assembly comprises a second pull rod, one end of which is pivotally connected to the output end of the driving mechanism, and the other end of which is pivotally connected to the armrest mechanism via a sliding shaft.

5. The folding wheelchair according to claim 1, characterized in that: The folding wheelchair also includes a backrest, a third driving assembly and a linkage mechanism, one end of the backrest is pivotally connected to the seat plate, one end of the third driving assembly is connected to the output end of the driving mechanism, the other end of the third driving assembly is pivotally connected to one end of the linkage mechanism through a sliding shaft, and the other end of the linkage mechanism is pivotally connected to the backrest to drive the backrest to move closer to the seat plate.

6. The folding wheelchair according to claim 5, characterized in that: The third driving assembly includes a second pull rod, one end of which is pivotally connected to the output end of the driving mechanism, and the other end of which is connected to the sliding shaft.

7. The folding wheelchair according to claim 3 or 5, characterized in that: An arc-shaped hole is arranged at the upper end of the front bracket, and the sliding shaft slides through the arc-shaped hole.

8. The folding wheelchair according to claim 5, characterized in that: The linkage mechanism includes a first linkage rod, a second linkage rod and a third linkage rod, one end of the first linkage rod is connected to the sliding shaft, and the other end is pivoted to the second linkage rod; one end of the second linkage rod is pivoted to the seat plate, and the other end is pivoted to one end of the third linkage rod; the other end of the third linkage rod is pivoted to the backrest.

9. The folding wheelchair according to claim 1, characterized in that: The folding wheelchair also includes wheels, and the wheels are respectively arranged on the front bracket and the rear bracket.

10. The foldable wheelchair according to claim 1, characterized in that: The folding wheelchair further comprises a pedal, and the pedal is foldably arranged at the lower end of the front bracket.

11. The foldable wheelchair according to claim 1, characterized in that: The output end of the driving device is arranged telescopically.

12. A folding wheelchair, characterized in that: The sprocket wheel is annularly connected to the sprocket wheel, and the sprocket wheel is vertically connected to the bottom of the sprocket wheel, and the sprocket wheel is vertically connected to the bottom of the sprocket wheel. The sprocket wheel is vertically connected to the bottom of the sprocket wheel, and the sprocket wheel is vertically connected to the bottom of the sprocket wheel.

13. The folding wheelchair according to claim 12, characterized in that: The folding wheelchair also includes a second swing arm, a backrest, a third drive assembly and a linkage mechanism; the first swing arm is fixedly connected to the second swing arm, and the second swing arm is pivotally connected to the rear bracket; 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 mechanism through a sliding shaft, and the other end of the linkage mechanism is pivotally connected to the backrest to drive the backrest to move closer to the seat plate.

14. A folding wheelchair, characterized in that: The invention comprises a front bracket, a rear bracket, a seat plate, a driving mechanism, a first driving assembly, an armrest mechanism and a third driving assembly; the front bracket is connected to the rear bracket; the seat plate is pivotally connected to the rear bracket; the driving mechanism is arranged on the rear bracket; the output end of the driving mechanism is connected to one end of the first driving assembly; the other end of the first driving assembly is connected to the seat plate to drive the seat plate to move closer to the rear bracket; the armrest mechanism is arranged on the rear bracket, one end of the third driving assembly is connected to the output end of the driving mechanism, and the other end of the third driving assembly is connected to the armrest mechanism to drive the armrest to move toward the rear bracket. The rear bracket is moved closer in direction; the driving mechanism includes a driving device and a first swing arm and a second swing arm, one end of the driving device is pivoted to the rear bracket, and the other end is pivoted to one end of the first swing arm; the first swing arm is fixedly connected to the second swing arm, and one end of the second swing arm is pivoted to the rear bracket; the second swing arm is pivoted to the third driving component; the first driving component includes a driving rod, a pivot member and a connecting rod, one end of the driving rod is pivoted to the first swing arm, and the other end is pivoted to the pivot member; the pivot member is pivoted to the rear bracket; one end of the connecting rod is pivoted to the pivot member, and the other end is pivoted to the seat plate.

15. The folding wheelchair according to claim 14, characterized in that: The third driving assembly includes a second pull rod, one end of the second pull rod is pivotally connected to the second swing arm, and the other end of the second pull rod is pivotally connected to the armrest mechanism.

16. A folding wheelchair, characterized in that: It includes a front bracket, a rear bracket, a seat plate, a driving mechanism, a second driving assembly, an armrest mechanism and a third driving assembly; the front bracket is pivotally connected to the rear bracket; the seat plate is arranged on the rear bracket; The driving mechanism is arranged on the rear bracket; the output end of the driving mechanism is connected to one end of the second driving component, and the other end of the second driving component is pivoted to the front bracket to drive the front bracket to move closer to the rear bracket; the armrest mechanism is arranged on the rear bracket, the output end of the driving mechanism is connected to one end of the third driving component, and the other end of the third driving component is connected to the armrest mechanism to drive the armrest to move closer to the rear bracket; the driving mechanism includes a driving device and a first swing arm and a second swing arm, one end of the driving device is pivoted to the rear bracket, and the other end is pivoted to one end of the first swing arm; the first swing arm is fixedly connected to the second swing arm, and one end of the second swing arm is pivoted to the rear bracket; the second swing arm is pivoted to the second driving component and the third driving component respectively.

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