Folding wheelchair

Abstract

The utility model provides a folding wheelchair which solves the technical problem that in the prior art, a folding wheelchair is unstable. A folding wheelchair comprises a left frame and a right frame, and a folding assembly is arranged between the left frame and the right frame. The left frame and the folding assembly are provided with a first supporting rod which enables the folding assembly to be kept stable in the unfolded state, and the right frame and the folding assembly are provided with a second supporting rod which enables the folding assembly to be kept stable in the unfolded state. The folding assembly is arranged between the left frame and the right frame and is matched with the first supporting rod and the second supporting rod, so that the wheelchair can provide more stable support in an unfolded state, the risk of accidental folding is reduced, the structural rigidity of the wheelchair is enhanced by using the supporting rods, and even if the wheelchair bears heavy loads or is used on the uneven ground, the wheelchair can be folded more stably. And the stability can be kept, the riding safety and comfort are improved, the simplicity and accuracy of operation are ensured, and the risk caused by misoperation is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical auxiliary equipment, and particularly relates to a folding wheelchair. BACKGROUND

[0002] Folding wheelchairs are designed for easy portability and storage. They can quickly reduce the volume through a special folding mechanism, which is very suitable for users who need to move frequently or use wheelchairs in limited space. As one of the types, the scissor folding wheelchair uses a scissor mechanical structure to achieve quick folding and unfolding, but this design may have some drawbacks, such as accidental folding due to insufficient mechanical locking mechanism or improper operation during normal use, affecting the stability and safety of the wheelchair. SUMMARY

[0003] The utility model provides a folding wheelchair, aims at solving the technical problem of the instability of the prior art folding wheelchair.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A folding wheelchair, comprising a left frame and a right frame, a folding assembly is arranged between the left frame and the right frame;

[0006] The left frame and the folding assembly are provided with a first support rod for maintaining the stability of the folding assembly in the unfolded state, and the right frame and the folding assembly are provided with a second support rod for maintaining the stability of the folding assembly in the unfolded state.

[0007] In a preferred embodiment, the folding assembly comprises a first rod and a second rod, and the first rod and the second rod are rotatably connected in the middle;

[0008] The upper end of the first rod is detachably arranged at the upper end of the right frame, and the lower end of the first rod is rotatably connected to the lower end of the left frame; the upper end of the second rod is detachably arranged at the upper end of the left frame, and the lower end of the second rod is rotatably connected to the lower end of the right frame.

[0009] Based on the above scheme, through the rotatable connection of the first rod and the second rod, the wheelchair can be flexibly converted between the folded and unfolded states, and the user can easily fold the wheelchair for easy carrying or storage.

[0010] In a preferred embodiment, the left frame is provided with a first limiting slot for supporting the upper end of the second rod, and the right frame is provided with a second limiting slot for supporting the upper end of the first rod;

[0011] When the folding assembly is unfolded, the upper end of the first rod slides downward and is clamped in the second limiting slot, and the upper end of the second rod slides downward and is clamped in the first limiting slot; when the folding assembly is folded, the upper end of the first rod slides upward and is disengaged from the second limiting slot, and the upper end of the second rod slides upward and is disengaged from the first limiting slot.

[0012] Based on the above scheme, the user only needs to perform a simple sliding operation to realize the folding and unfolding of the wheelchair, the operation is simple, and the complex operation steps are reduced, and the limiting slot ensures that the first rod and the second rod can be stably clamped on the corresponding frame in the unfolded state of the wheelchair, thereby providing structural stability and support.

[0013] Preferably, the first limiting slot and the second limiting slot are both arranged with openings upward.

[0014] Based on the above scheme, the limiting slot with the upward opening simplifies the folding process, the user only needs to slide the rod upward to disengage from the limiting slot, realizes fast folding, and the limiting slot can reduce accidental falling during use due to sliding of the rod, because the gravity helps to maintain the stability of the rod in the limiting slot.

[0015] Preferably, the first support rod comprises a rotating end and a connecting end, the rotating end of the first support rod is rotatably connected with the first rod, and the connecting end of the first support rod is rotatably connected with the left frame; the second support rod comprises a rotating end and a connecting end, the rotating end of the second support rod is rotatably connected with the second rod, and the connecting end of the second support rod is rotatably connected with the right frame.

[0016] Based on the above scheme, the rotating connection allows the support rod to rotate freely within a certain range, making the wheelchair more smooth when folding and unfolding, which helps to reduce the occupied space when folding the wheelchair, making the wheelchair more compact, and facilitating storage and carrying.

[0017] Preferably, the connecting end of the first support rod is rotatably connected with the left frame through a first connecting piece, and the connecting end of the second support rod is rotatably connected with the right frame through a second connecting piece.

[0018] Based on the above scheme, the presence of the connecting piece provides additional rotational freedom, making the wheelchair more flexible when folding and unfolding, and using independent connecting pieces allows quick replacement or maintenance of the support rod, improving the convenience of maintenance.

[0019] Preferably, the first connecting piece is suspended below the left frame, and the second connecting piece is suspended below the right frame.

[0020] Based on the above scheme, the connecting piece hung can reduce the direct stress between the support rod and the wheelchair frame, thereby improving the stability of the overall structure; moreover, since the connecting piece is hung below the frame, the direct contact between the support rod and other hard objects is reduced, thereby reducing wear and tear and prolonging the service life of the support rod.

[0021] Preferably, the folding assembly has at least two groups, and the at least two groups of folding assemblies are arranged along the front-rear direction of the wheelchair, the first support piece is arranged between the last folding assembly and the left frame, and the second support piece is arranged between the last folding assembly and the right frame.

[0022] Based on the above scheme, when a user sits on the wheelchair, the rear side of the wheelchair will bear more weight and pressure, and therefore, by arranging the first support piece and the second support piece at the last side of the wheelchair, additional support force can be provided, thereby ensuring the stability and safety of the wheelchair during use and reducing the vibration and shaking that may occur during use of the wheelchair.

[0023] Preferably, the upper end of the first rod piece is provided with a first column body matched with the second limiting groove, and the upper end of the second rod piece is provided with a second column body matched with the first limiting groove.

[0024] Preferably, the upper end of the first rod piece of the two groups of folding assemblies is connected with the same first column body, and the upper end of the second rod piece of the two groups of folding assemblies is connected with the same second column body.

[0025] Based on the above scheme, the unified column body connection simplifies the mechanical structure of folding and unfolding, reduces the number of components that need to be operated independently, thereby reducing the operation complexity, and enables the user to fold or unfold the wheelchair more easily.

[0026] The utility model discloses the beneficial effects are:

[0027] The utility model provides a folding wheelchair, through setting up folding assembly between left frame and right frame, and cooperate first support rod and second support rod, make the wheelchair provide more stable support in unfolded state, reduce the risk of accidental folding, secondly, the use of support rod enhances the structural rigidity of the wheelchair, even when carrying heavy load or on uneven ground, can keep stable, improve the safety and comfort of riding, also ensure the simplicity and accuracy of operation, reduce the risk caused by improper operation. At the same time, the support piece can provide stable support when the wheelchair is in the unfolded state, and the folding process of the wheelchair does not become complicated, so that the folding wheelchair maintains portability and easy operation, and the user can fold and carry more easily when needed. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0029] Figure 1 is a first schematic view of the structure of a folding wheelchair in the present application.

[0030] Figure 2 is Figure 1 is an enlarged view of A of

[0031] Figure 3 is a second schematic view of the structure of a folding wheelchair in the present application.

[0032] Figure 4 is a third schematic view of the structure of a folding wheelchair in the present application.

[0033] Figure 5 is Figure 4 is an enlarged view of B of

[0034] Explanation of reference numerals in the drawings:

[0035] 1 - left frame; 2 - right frame; 3 - folding assembly; 31 - first rod; 31 - second rod; 4 - first support rod; 5 - second support rod; 6 - first limiting groove; 7 - second limiting groove; 8 - first connecting piece; 9 - second connecting piece; 10 - first column; 11 - second column. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. It should be understood that the specific embodiments described herein are only used to explain the present application, and should not be regarded as a limitation on the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0037] The present embodiment provides a folding wheelchair, which comprises a left frame and a right frame, and a folding assembly is arranged between the left frame and the right frame;

[0038] The left frame and the folding assembly are provided with a first support rod for keeping the folding assembly stable in an unfolded state, and the right frame and the folding assembly are provided with a second support rod for keeping the folding assembly stable in the unfolded state.

[0039] The folding assembly comprises a first rod and a second rod, and the first rod and the second rod are connected in the middle by a rotating connection;

[0040] The upper end of the first rod is detachably arranged at the upper end of the right frame, and the lower end of the first rod is rotatably connected to the lower end of the left frame; the upper end of the second rod is detachably arranged at the upper end of the left frame, and the lower end of the second rod is rotatably connected to the lower end of the right frame.

[0041] Specifically, the folding assembly is composed of two main rods, i.e., the first rod and the second rod, and the two rods are connected in the middle by a rotating connection point, so that they can rotate relative to each other to complete the folding and unfolding of the wheelchair. In order to enable the folding assembly to be folded, the lower end of the first rod is rotatably fixed to the lower end of the left frame, and the upper end of the first rod is designed to be detachably arranged at the upper end of the right frame; similarly, the lower end of the second rod is rotatably connected to the lower end of the right frame, and the upper end of the second rod is detachably arranged at the upper end of the left frame.

[0042] In order to enable the wheelchair to realize the folding function, on the basis of any of the above solutions, a first limiting groove for supporting the upper end of the second rod is arranged on the left frame, and a second limiting groove for supporting the upper end of the first rod is arranged on the right frame.

[0043] When the folding assembly is unfolded, the upper end of the first rod slides downward and is clamped in the second limiting groove, and the upper end of the second rod slides downward and is clamped in the first limiting groove; when the folding assembly is folded, the upper end of the first rod slides upward and is separated from the second limiting groove, and the upper end of the second rod slides upward and is separated from the first limiting groove.

[0044] And the first limiting groove and the second limiting groove are both arranged with openings facing upward.

[0045] Specifically, the left frame is provided with a first limiting groove for supporting the upper end of the second rod; correspondingly, the right frame is provided with a second limiting groove for supporting the upper end of the first rod. When the folding assembly of the wheelchair needs to be unfolded, the upper end of the first rod will slide downward until it is clamped in the second limiting groove, and at the same time, the upper end of the second rod will also slide downward and be clamped in the first limiting groove, ensuring the stability of the wheelchair in the unfolded state. Conversely, when the folding assembly needs to be folded, the upper end of the first rod will slide upward and be separated from the second limiting groove, and the upper end of the second rod will also slide upward and be separated from the first limiting groove, so that the wheelchair can be smoothly folded.

[0046] In addition, the first support rod comprises a rotating end and a connecting end, the rotating end of the first support rod is rotationally connected with the first rod piece, and the connecting end of the first support rod is rotationally connected with the left frame; the second support rod comprises a rotating end and a connecting end, the rotating end of the second support rod is rotationally connected with the second rod piece, and the connecting end of the second support rod is rotationally connected with the right frame.

[0047] The connecting end of the first support rod is rotationally connected with the left frame through a first connecting piece, and the connecting end of the second support rod is rotationally connected with the right frame through a second connecting piece.

[0048] In addition, the first connecting piece is suspended below the left frame, and the second connecting piece is suspended below the right frame.

[0049] Specifically, the first support rod comprises a rotating end and a connecting end, the rotating end is rotationally connected with the first rod piece, and the connecting end is rotationally connected with the left frame through a first connecting piece. Similarly, the rotating end of the second support rod is rotationally connected with the second rod piece, and the connecting end is rotationally connected with the right frame through a second connecting piece.

[0050] The first connecting piece is suspended below the left frame, and the second connecting piece is suspended below the right frame. The suspension arrangement allows the support rod to have a certain degree of rotational freedom when connected with the wheelchair frame.

[0051] In addition, the embodiment considers stability, and on the basis of any of the above solutions, the folding assembly comprises at least two groups, the at least two groups of folding assemblies are arranged along the front-rear direction of the wheelchair, the first support piece is arranged between the last folding assembly and the left frame, and the second support piece is arranged between the last folding assembly and the right frame.

[0052] Specifically, the rotating end of the first support rod is rotationally connected with the first rod piece of the last folding assembly, and the connecting end is rotationally connected with the left frame; the rotating end of the second support rod is rotationally connected with the second rod piece of the last folding assembly, and the connecting end is rotationally connected with the right frame.

[0053] In addition, the upper end of the first rod piece is provided with a first column body matched with the second limiting slot, and the upper end of the second rod piece is provided with a second column body matched with the first limiting slot.

[0054] In addition, the upper end of the first rod piece is provided with a first column body matched with the second limiting slot, and the upper end of the second rod piece is provided with a second column body matched with the first limiting slot.

[0055] Specifically, the upper end of the first rod is equipped with a first column, which is designed to cooperate with the second limiting groove, and the upper end of the second rod is equipped with a second column, which cooperates with the first limiting groove. When folding or unfolding the wheelchair, the synchronous action of multiple folding assemblies is realized by operating the two columns.

[0056] The wheelchair is provided with a foldable or detachable seat cushion, the left frame is provided with a left armrest, the right frame is provided with a right armrest, and the rear sides of the left armrest and the right armrest are provided with backrests.

[0057] The utility model is further explained and described below in combination with working principles:

[0058] The folding wheelchair comprises a left frame and a right frame, and is connected through at least two groups of folding assemblies in the middle, each folding assembly comprises a first rod and a second rod, and the first rod and the second rod are connected through rotation in the middle to realize folding and unfolding of the wheelchair. The upper end of the first rod is detachably fixed on the upper end of the right frame, and the lower end is rotationally connected to the lower end of the left frame; the upper end of the second rod is fixed on the upper end of the left frame, and the lower end is rotationally connected to the lower end of the right frame. When the wheelchair is unfolded, the upper ends of the first rod and the second rod are respectively locked through cooperation of the first column and the second column with the corresponding second limiting groove and the first limiting groove, so that the stability of the wheelchair is ensured. The rotating end of the first support rod is rotationally connected with the first rod, and the connecting end is rotationally connected with the left frame through the first connecting piece; the rotating end of the second support rod is rotationally connected with the second rod, and the connecting end is rotationally connected with the right frame through the second connecting piece. When the wheelchair needs to be folded, the upper ends of the first rod and the second rod are separated from the corresponding limiting grooves, and the support rods are folded, so that the wheelchair can be compactly folded and stored.

[0059] The utility model is not limited to the above optional implementation, and the schemes can be combined arbitrarily on the premise of not being contradictory to each other; anyone can derive other various forms of products under the inspiration of the utility model, but no matter any change in shape or structure, any technical scheme falling within the scope defined by the claims of the utility model falls within the protection scope of the utility model.

Claims

1. A foldable wheelchair, characterized by: The left frame and the right frame are provided with a folding assembly therebetween; The left frame and the folding assembly are provided with a first support rod for stabilizing the folding assembly in an unfolded state, and the right frame and the folding assembly are provided with a second support rod for stabilizing the folding assembly in an unfolded state; The folding assembly comprises a first rod member and a second rod member, and the first rod member and the second rod member are rotationally connected at the middle portions thereof; The upper end of the first rod member is detachably arranged at the upper end of the right frame, and the lower end of the first rod member is rotationally connected to the lower end of the left frame; the upper end of the second rod member is detachably arranged at the upper end of the left frame, and the lower end of the second rod member is rotationally connected to the lower end of the right frame.

2. A foldable wheelchair according to claim 1, characterized in that: The left frame is provided with a first limiting groove for supporting the upper end of the second rod member, and the right frame is provided with a second limiting groove for supporting the upper end of the first rod member; When the folding assembly is unfolded, the upper end of the first rod member slides downward and is clamped in the second limiting groove, and the upper end of the second rod member slides downward and is clamped in the first limiting groove; when the folding assembly is folded, the upper end of the first rod member slides upward and is disengaged from the second limiting groove, and the upper end of the second rod member slides upward and is disengaged from the first limiting groove.

3. A foldable wheelchair according to claim 2, characterized in that: The first limiting groove and the second limiting groove are both arranged with openings facing upward.

4. The foldable wheelchair of claim 1, wherein: The first support rod comprises a rotating end and a connecting end, the rotating end of the first support rod is rotationally connected to the first rod member, and the connecting end of the first support rod is rotationally connected to the left frame; the second support rod comprises a rotating end and a connecting end, the rotating end of the second support rod is rotationally connected to the second rod member, and the connecting end of the second support rod is rotationally connected to the right frame.

5. A foldable wheelchair according to claim 4, characterised in that: The connecting end of the first support rod is rotationally connected to the left frame through a first connecting member, and the connecting end of the second support rod is rotationally connected to the right frame through a second connecting member.

6. A foldable wheelchair according to claim 5, characterised in that: The first connecting member is suspended below the left frame, and the second connecting member is suspended below the right frame.

7. The foldable wheelchair of claim 1, wherein: There are at least two groups of the folding assembly, and the at least two groups of the folding assembly are arranged along the front-rear direction of the wheelchair; the first support rod is arranged between the last-side folding assembly and the left frame, and the second support rod is arranged between the last-side folding assembly and the right frame.

8. The foldable wheelchair of claim 3, wherein: The upper end of the first rod member is provided with a first column body matched with the second limiting groove, and the upper end of the second rod member is provided with a second column body matched with the first limiting groove.

9. A foldable wheelchair according to claim 8, characterized in that: The upper ends of the first rod members of the two groups of the folding assembly are both connected to the same first column body, and the upper ends of the second rod members of the two groups of the folding assembly are both connected to the same second column body.

Images