Foldable frame and walking aid equipment

Abstract

The utility model discloses a foldable frame and a walking aid device. The walking aid device comprises a linkage rod, a main rod and a wheel connecting rod set, wherein the main rod and the wheel connecting rod set are oppositely arranged. The linkage rod is located between the oppositely-arranged main rods, and one end of the linkage rod is connected with the two opposite main rods. The other end of the linkage rod is connected with the wheel connecting rod group; when the two main rods are moved downwards, the two main rods drive the linkage rod to rotate and drive the main rods and the wheel connecting rod sets which are oppositely arranged to get close to each other at the same time, and then folding of the rollator is achieved. The linkage rod is arranged between the two main rods and connected with the main rods and the wheel connecting rod sets respectively, so that the main rods drive the linkage rod to rotate in the downward overturning process, the two wheel connecting rod sets and the two main rods are driven to be close to each other, and folding is achieved; the folding chair is small in size after being folded, convenient to store or carry, simple to operate, suitable for old people to use and worthy of vigorous popularization.

Description

Technical Field

[0001] This utility model belongs to the field of mobility assistance technology, specifically relating to a foldable bicycle frame and mobility assistance device. Background Technology

[0002] Assistive walking devices are instruments that help the body support its weight, maintain balance, and walk. Simply put, they relieve pressure on the legs, allowing people with mobility impairments to move freely. Existing smart walking aids specifically designed for the elderly can be used as wheelchairs or for pushing, providing new ways to assist them with their travel. These devices are typically four-wheeled, with front and rear wheels mounted on two opposing frames. Most existing walking aids have automatic or manual opening and folding functions; however, when folded, they are often bulky or difficult to fold, making them unsuitable for the elderly or those with disabilities. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a foldable frame, which solves the problem that existing mobility aids are too bulky or difficult to fold, making them unsuitable for the elderly or patients.

[0004] Another objective of this invention is to provide a mobility aid that utilizes the aforementioned foldable frame.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A foldable frame, the mobility aid including a linkage rod and opposing main rod and wheel connecting rod assemblies;

[0007] The linkage rod is located between the opposing main rods, and one end of the linkage rod is rotatably connected to the two opposing main rods;

[0008] The other end of the linkage rod is connected to the wheel connecting rod assembly;

[0009] When the two main rods are pressed downwards, the two main rods drive the linkage rod to rotate, and at the same time drive the oppositely arranged main rods and the wheel connecting rod group to move closer to each other, thereby realizing the folding of the walking aid device.

[0010] In the above scheme, the linkage rod includes two folding rods that are connected to each other in a cross manner. One end of each of the two folding rods near the main rod is movably connected to the two main rods, and the other end is connected to the wheel connecting rod assembly.

[0011] In the above scheme, the wheel connecting rod assembly includes two wheel connecting rods, two wheel folding rods, and a wheel connecting seat. One end of each of the two wheel connecting rods is connected to the front and rear wheels respectively, and the other end is movably connected to the main rod. The two wheel folding rods are respectively disposed on both sides of the wheel connecting seat and rotatably connected to the wheel connecting seat, and the other end is connected to the wheel connecting rod respectively.

[0012] In the above scheme, the wheel connecting seat is a three-way connector, and the two wheel folding rods and one end of the folding rods are rotatably connected to the three-way connector.

[0013] In the above solution, the foldable frame also includes a main rod connecting seat, which is connected to the main rod, and the two wheel connecting rods are rotatably connected to the main rod connecting seat.

[0014] In the above scheme, the main rod connecting seat is provided with a main rod movable part and a main rod connecting part. The main rod connecting part is rotatably connected to the main rod movable part. The main rod movable part is sleeved on the main rod, and both wheel connecting rods are movably connected to the main rod connecting part.

[0015] In the above scheme, the main rod connecting part is a three-way connecting seat, and the main rod movable part is rotatably connected to one of the three-way connecting seats; the two wheel connecting rods are respectively movably connected to the other two of the three-way connecting seats.

[0016] In the above solution, the foldable frame also includes a support rod, one end of which is connected to the main rod via the main rod connector, and the other end is connected to the folding rod.

[0017] In the above solution, the foldable frame also includes a locking rod assembly, which is rotatably connected to the linkage rod.

[0018] In the above scheme, the locking rod assembly includes a locking rod connector and two locking rods. The two locking rods are respectively disposed on both sides of the locking rod connector, and the two locking rods are rotatably connected to the locking rod connector. The ends of the two locking rods away from the locking rod connector are respectively rotatably connected to the two folding rods.

[0019] In the above scheme, the main rod is also provided with a handle for gripping.

[0020] In the above scheme, the folding rod is curved.

[0021] Another technical solution of this utility model is implemented as follows:

[0022] A mobility aid device, the mobility aid device including a foldable frame.

[0023] Compared with the prior art, this utility model sets the linkage rod between the two main rods and connects the linkage rod to the main rods and the wheel connecting rod assembly respectively. This allows the main rod to rotate during the downward flipping process, thereby causing the two wheel connecting rod assemblies and the two main rods to move closer to each other, achieving folding. This utility model has a small folded size, making it convenient to store or carry. At the same time, this utility model is simple to operate and suitable for the elderly and other people with disabilities, making it worthy of widespread promotion. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of a foldable vehicle frame provided in Embodiment 1 of this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of a foldable frame provided in Embodiment 1 of this utility model from another angle;

[0026] Figure 3 A three-dimensional structural diagram of the main rod connecting seat in a foldable frame provided in Embodiment 1 of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the main rod connecting seat in a foldable frame provided in Embodiment 1 of this utility model from another angle;

[0028] Figure 5 A three-dimensional structural diagram of a wheel connecting seat in a foldable frame provided in Embodiment 1 of this utility model;

[0029] Figure 6 This is a three-dimensional structural diagram of a locking rod assembly in a foldable frame provided in Embodiment 1 of this utility model;

[0030] Figure 7 This is a three-dimensional structural diagram of a locking rod assembly in a foldable frame provided in Embodiment 1 of this utility model from another angle;

[0031] Figure 8 A schematic diagram illustrating the folding process of a foldable frame provided in Embodiment 1 of this utility model;

[0032] Figure 9 This is a schematic diagram of another angle folding process of a foldable frame provided in Embodiment 1 of this utility model;

[0033] Figure 10 This is a three-dimensional structural diagram of a foldable frame provided in Embodiment 2 of this utility model.

[0034] In the diagram, 110. Main rod, 120. Wheel connecting rod assembly, 121. Wheel connecting rod, 122. Wheel folding rod, 123. Wheel connecting seat, 130. Linkage rod, 131. Folding rod, 140. Main rod connecting seat, 141. Main rod movable part, 142. Main rod connecting part, 150. Support rod, 160. Locking rod assembly, 161. Locking rod connector, 162. Locking rod. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] In the description of this utility model, it should be clarified that the terms "vertical," "lateral," "longitudinal," "front," "rear," "left," "right," "up," "down," and "horizontal," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are merely for the convenience of describing this utility model. They do not imply that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] Example 1

[0038] Most existing walking aids typically have automatic or manual opening and folding functions, but they are either too bulky when folded or difficult to fold, making them unsuitable for the elderly or patients.

[0039] To solve this problem, this utility model sets the linkage rod between the opposite main rods, with one end of the linkage rod connected to the two opposite main rods and the other end of the linkage rod connected to the wheel connecting rod assembly, so that users can easily fold it to obtain a small walking aid.

[0040] The present invention provides a foldable bicycle frame in Embodiment 1, see [link / reference]. Figures 1 to 7The walking aid includes a linkage rod 130 and two opposing main rods 110 and a wheel connecting rod assembly 120. The linkage rod 130 is located between the opposing main rods 110, and one end of the linkage rod 130 is rotatably connected to the two opposing main rods 110. The other end of the linkage rod 130 is connected to the wheel connecting rod assembly 120. When the two main rods 110 are pressed downward, the two main rods 110 drive the linkage rod 130 to rotate, and at the same time drive the opposing main rods 110 and the wheel connecting rod assembly 120 to move closer to each other, thereby realizing the folding of the walking aid.

[0041] See Figure 1 and Figure 2 A linkage rod 130 is provided between the two main rods 110, and the main rods 110 can be pressed down and flipped. When pressed down and flipped, the main rods 110 move closer to each other, and the linkage rod 130 also rotates. Since the linkage rod 130 is connected to the wheel connecting rod group 120, the linkage rod 130 will drive the wheel connecting rod group 120 to move closer to each other when it rotates.

[0042] By adopting the above solution, this utility model places the linkage rod 130 between the two main rods 110 and connects the linkage rod 130 to the main rods 110 and the wheel connecting rod assembly 120 respectively. This allows the main rods 110 to rotate during downward flipping, thereby causing the two wheel connecting rod assemblies 120 and the two main rods 110 to move closer to each other, achieving folding. This utility model has a small folded size, making it convenient to store or carry. At the same time, this utility model is simple to operate and suitable for use by the elderly and other people with disabilities, and is worthy of widespread promotion.

[0043] See Figure 1 , Figure 2 , Figure 6 as well as Figure 7 In a specific implementation of Embodiment 1 of this utility model, the linkage 130 further includes two intersecting folding rods 131. One end of each folding rod 131 near the main rod 110 is movably connected to the two main rods 110, and the other end is connected to the wheel connecting rod assembly 120. During the folding process, the two folding rods 131 rotate around the intersection point, changing from an X-shape to an I-shape.

[0044] More specifically, in Embodiment 1 of this utility model, the two folding rods 131 can also be in the shape of a "W", "V", "Y", "XX" or any shape that a group of folding rods with at least one intersection point can present.

[0045] See Figure 1 , Figure 2 as well as Figure 5In a specific implementation of Embodiment 1 of this utility model, the wheel connecting rod assembly 120 further includes two wheel connecting rods 121, two wheel folding rods 122, and a wheel connecting seat 123. One end of each of the two wheel connecting rods 121 is connected to the front and rear wheels respectively, and the other end is movably connected to the main rod 110. The two wheel folding rods 122 are respectively disposed on both sides of the wheel connecting seat 123 and rotatably connected to the wheel connecting seat 123, and the other end is connected to the wheel connecting rods 121 respectively. When folding, the two wheel connecting rods 121 move closer to each other, and the two wheel folding rods 122 move upward under the drive of the two wheel connecting rods 121, thereby driving the front and rear wheels closer to the main rod 110.

[0046] See Figure 5 In a specific implementation of Embodiment 1 of this utility model, the wheel connecting seat 123 is further configured as a three-way connector, and one end of each of the two wheel folding rods 122 and 131 is rotatably connected to the three-way connector. One end of each wheel folding rod 122 and 131 can be connected to the three-way connector via a pivot; during folding, both wheel folding rods 122 and 131 are lifted upwards via the pivot.

[0047] See Figures 1 to 4 In a specific implementation of Embodiment 1 of this utility model, the foldable frame further includes a main rod connecting seat 140, which is connected to the main rod 110, and the two wheel connecting rods 121 are rotatably connected to the main rod connecting seat 140. The main rod connecting seat 140 ensures a stable folding relationship between the main rod 110, the wheel connecting rods 121, and the support rod 150 during the folding process.

[0048] Furthermore, the main rod connecting seat 140 is provided with a main rod movable part 141 and a main rod connecting part 142. The main rod connecting part 142 is rotatably connected to the main rod movable part 141. The main rod movable part 141 is sleeved on the main rod 110, and both wheel connecting rods 121 are movably connected to the main rod connecting part 142. The main rod movable part 141 ensures that the main rod 110 can rotate around the main rod connecting seat 140, allowing the main rod 110 to complete the flipping action; the main rod connecting part 142 also ensures that the wheel connecting rods 121 can rotate around the main rod connecting seat 140. During folding, the wheel connecting rods 121 connected to the main rod connecting part 142 rotate, causing the front and rear wheels to lift upwards, thereby causing the wheel folding rods 122 to slowly rotate upwards; during folding, the main rod 110 connected to the main rod movable part 141 flips downwards around the main rod movable part 141, causing the folding rods 131 to move closer together, thereby causing the main rods 110 to also move closer together.

[0049] Furthermore, the main rod connecting part 142 is a three-way connecting seat, with the main rod movable part 141 rotatably connected to one of the three-way connecting seats; the two wheel connecting rods 121 are respectively movably connected to the other two of the three-way connecting seats. The three-way connecting seat ensures that the main rod movable part 141 can rotate normally, while also ensuring that the two wheel connecting rods 121 can rotate around the three-way connecting seat.

[0050] See Figure 1 and Figure 2 In a further embodiment of this utility model, the foldable frame also includes a support rod 150. One end of the support rod 150 is connected to the main rod 110 via the main rod connecting seat 140, and the other end is connected to the folding rod 131. The support rod 150 ensures the stability of the entire foldable frame during folding and supports the main rod 110 when unfolded.

[0051] See Figure 1 , Figure 2 , Figure 6 as well as Figure 7 In a further embodiment of this utility model, the foldable frame also includes a locking rod assembly 160, which is rotatably connected to the linkage rod 130. When the foldable frame is unfolded, the locking rod assembly 160 secures the two folding rods 131, preventing accidental folding during use.

[0052] Furthermore, in Embodiment 1 of this utility model, the locking lever assembly 160 is disposed at the upper end of the two folding levers 131. Of course, the position of the locking lever assembly 160 is not limited to the upper end of the two folding levers 131. This arrangement in Embodiment 1 is for the convenience of the user.

[0053] In a specific implementation of Embodiment 1 of this utility model, the locking rod assembly 160 further includes a locking rod connector 161 and two locking rods 162. The two locking rods 162 are respectively disposed on both sides of the locking rod connector 161, and the two locking rods 162 are rotatably connected to the locking rod connector 161. The ends of the two locking rods 162 away from the locking rod connector 161 are respectively rotatably connected to two folding rods 131. During the folding process, the connection points between the two locking rods 162 and the locking rod connector 161 are first lifted upwards, and then the two main rods 110 are flipped downwards, causing the two folding rods 131 to change from an X-shape to an I-shape. When fully folded, the two locking rods 161 become vertical, the two folding rods 131 also become I-shaped structures, and the two main rods 110 also move closer to each other to achieve folding.

[0054] See Figures 1 to 9In a further embodiment of this utility model, the main rod 110 is also provided with a handle for gripping. The handle can control the direction of the foldable frame in embodiment 1 of this utility model.

[0055] In a specific implementation of Embodiment 1 of this utility model, the folding rod 131 is further curved. The curved folding rod 131 simplifies the assembly process while also ensuring ease of folding.

[0056] The working principle of the foldable frame provided in Embodiment 1 of this utility model is as follows:

[0057] See Figure 8 and Figure 9 During the folding process, firstly, the connection points between the two locking rods 162 and the locking rod connecting seat 161 are lifted upwards. Then, the two main rods 110 are flipped outwards and downwards. When the main rods 110 are flipped, the tops of the two folding rods 131 move closer together, and the two folding rods 131 change from an X shape to an I shape. During this process, due to the movement of the folding rods 131, the two wheel connecting seats 123 move closer to each other diagonally downwards. Then, the wheel folding rods 122 move towards the support rod 140, and the front and rear wheels also move towards the main rods 110. The two main rods 110 move closer to each other, the two locking rods 162 move closer to each other, and the two folding rods 131 also move closer to each other, finally completing the folding process.

[0058] See Figure 8 and Figure 9 During the unfolding process, firstly, the two main rods 110 are flipped outwards and upwards. When the main rods 110 are flipped, the tops of the two folding rods 131 move away from each other, and the two folding rods 131 change from an I-shape to an X-shape. During this process, due to the movement of the folding rods 131, the two wheel connecting seats 123 move away from each other diagonally upwards. At the same time, the connection between the two locking rods 162 and the locking rod connecting seat 161 begins to press down. Then, the wheel folding rods 122 move away from the support rod 140, and the front and rear wheels also move away from the main rods 110. The two main rods 110 move away from each other, the two locking rods 162 move away from each other, and the two folding rods 131 also move away from each other, finally completing the unfolding process.

[0059] Example 2

[0060] The foldable frame provided in Embodiment 2 of the present invention is similar to the foldable frame provided in Embodiment 1, except that:

[0061] In Embodiment 2 of this utility model, the locking rod assembly 160 is disposed at the lower end of the two folding rods 131.

[0062] The working principle of the foldable frame provided in Embodiment 2 of this utility model is as follows:

[0063] See Figures 8 to 10 During the folding process, firstly, the connection points between the two locking rods 162 and the locking rod connecting seat 161 are lifted upwards. Then, the two main rods 110 are flipped outwards and downwards. When the main rods 110 are flipped, the tops of the two folding rods 131 move closer together, and the two folding rods 131 change from an X shape to an I shape. During this process, due to the movement of the folding rods 131, the two wheel connecting seats 123 move closer to each other diagonally downwards. At the same time, the connection points between the two locking rods 162 and the locking rod connecting seat 161 are lifted upwards. Then, the wheel folding rods 122 move towards the support rod 140, and the front and rear wheels also move towards the main rods 110. The two main rods 110 move closer to each other, the two locking rods 162 move closer to each other, and the two folding rods 131 also move closer to each other, finally completing the folding process.

[0064] See Figures 8 to 10 During the unfolding process, firstly, the two main rods 110 are flipped outwards and upwards. When the main rods 110 are flipped, the tops of the two folding rods 131 move away from each other, and the two folding rods 131 change from an I-shape to an X-shape. During this process, due to the movement of the folding rods 131, the two wheel connecting seats 123 move away from each other diagonally upwards. At the same time, the connection between the two locking rods 162 and the locking rod connecting seat 161 begins to press down. Then, the wheel folding rods 122 move away from the support rod 140, and the front and rear wheels also move away from the main rods 110. The two main rods 110 move away from each other, the two locking rods 162 move away from each other, and the two folding rods 131 also move away from each other, finally completing the unfolding process.

[0065] Example 3

[0066] The present invention provides a walking aid device in embodiment 3, which includes the foldable frame described in embodiment 1 or embodiment 2.

[0067] By using the foldable frame described in Embodiment 1 or Embodiment 2 on existing mobility aids, the problems of existing mobility aids being bulky and inconvenient to store or carry after folding can be solved.

[0068] In summary, this utility model, by placing a folding rod 131 between two main rods 110 and connecting the folding rod 131 to the main rods 110, and connecting it to the wheel connecting rod 121 via a wheel connecting seat 123, allows the main rods 110 to rotate during downward flipping, thereby causing the two wheel connecting rod assemblies 120 and the two main rods 110 to move closer together, achieving folding. This utility model has a small folded size, making it convenient for storage or carrying. Furthermore, this utility model is simple to operate and suitable for use by the elderly and other people with disabilities, making it worthy of widespread promotion.

[0069] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A foldable frame for use in mobility aids, characterized in that, It includes a linkage rod (130) and a main rod (110) and a wheel connecting rod assembly (120) arranged opposite to each other; The linkage rod (130) is located between the opposing main rods (110), and one end of the linkage rod (130) is rotatably connected to the two opposing main rods (110); The other end of the linkage rod (130) is connected to the wheel connecting rod assembly (120); When the two main rods (110) are pressed down, the two main rods (110) drive the linkage rod (130) to rotate, and at the same time drive the oppositely arranged main rods (110) and the wheel connecting rod group (120) to move closer to each other, thereby realizing the folding of the walking aid device.

2. A foldable bicycle frame according to claim 1, characterized in that, The linkage rod (130) includes two intersecting folding rods (131). One end of each folding rod (131) near the main rod (110) is movably connected to the two main rods (110), and the other end is connected to the wheel connecting rod group (120).

3. A foldable frame according to claim 2, characterized in that, The wheel connecting rod assembly (120) includes two wheel connecting rods (121), two wheel folding rods (122), and a wheel connecting seat (123). One end of each of the two wheel connecting rods (121) is connected to the front and rear wheels respectively, and the other end is movably connected to the main rod (110). The two wheel folding rods (122) are respectively disposed on both sides of the wheel connecting seat (123) and rotatably connected to the wheel connecting seat (123), and the other end is connected to the wheel connecting rods (121) respectively.

4. A foldable frame according to claim 3, characterized in that, The wheel connector (123) is a three-way connector, and one end of the two wheel folding rods (122) and the folding rod (131) are rotatably connected to the three-way connector.

5. A foldable bicycle frame according to claim 3, characterized in that, The foldable frame also includes a main rod connector (140) connected to the main rod (110), and the two wheel connecting rods (121) are rotatably connected to the main rod connector (140).

6. A foldable bicycle frame according to claim 5, characterized in that, The main rod connecting seat (140) is provided with a main rod movable part (141) and a main rod connecting part (142). The main rod connecting part (142) is rotatably connected to the main rod movable part (141). The main rod movable part (141) is sleeved on the main rod (110), and both wheel connecting rods (121) are movably connected to the main rod connecting part (142).

7. A foldable bicycle frame according to claim 6, characterized in that, The main rod connecting part (142) is a three-way connecting seat, and the main rod movable part (141) is rotatably connected to one of the three-way connecting seats; the two wheel connecting rods (121) are respectively movably connected to the other two of the three-way connecting seats.

8. A foldable bicycle frame according to claim 6, characterized in that, The foldable frame also includes a support rod (150), one end of which is connected to the main rod (110) via the main rod connector (140), and the other end is connected to the folding rod (131).

9. A foldable bicycle frame according to claim 2, characterized in that, The foldable frame also includes a locking rod assembly (160), which is rotatably connected to the linkage rod (130).

10. A foldable frame according to claim 9, characterized in that, The locking lever assembly (160) includes a locking lever connector (161) and two locking levers (162). The two locking levers (162) are respectively disposed on both sides of the locking lever connector (161), and the two locking levers (162) are rotatably connected to the locking lever connector (161). The ends of the two locking levers (162) away from the locking lever connector (161) are respectively rotatably connected to the two folding levers (131).

11. A walking aid device, characterized in that, The mobility aid includes the foldable frame as described in any one of claims 1 to 10.

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