Light damping structure for wheelchair

Abstract

The utility model provides a light damping structure for a wheelchair, which comprises a support seat, a swing seat and a damper, one end of the damper is rotatably connected with the support seat, the other end of the damper is rotatably connected with one end of the swing seat, and the other end of the swing seat is rotatably connected with the support seat. And the other end of the swinging seat is rotationally connected with the supporting seat. According to the light damping structure for the wheelchair, the swing seat and the damper are fixed to the supporting seat through the screws, the moving wheels are fixed to the swing seat, the damper is in an extending state in the no-load state, the damper is slightly compressed according to the load capacity when a person bears the load, and when the person walks on a bumpy road surface, the moving wheels are fixed to the moving wheels. The moving wheels make contact with the ground to drive the swing seat to move up and down along with bumping of the ground, the shock absorbers move up and down along with the swing seat to compress and stretch, bumping transmitted to a human body is relieved, and therefore the damping effect of the wheelchair is achieved.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair shock absorption structure technology, specifically to a lightweight shock absorption structure for wheelchairs. Background Technology

[0002] Wheelchairs are essential mobility tools for injured, sick, and disabled individuals, facilitating home rehabilitation, transportation, medical visits, and outdoor activities. They not only meet the mobility needs of people with limb disabilities and limited mobility, but more importantly, they facilitate family members' movement and care for patients, enabling patients to exercise and participate in social activities.

[0003] Currently available wheelchairs have poor shock absorption performance. When encountering bumps, they have poor stability and safety performance, and the shock absorption effect is not obvious. They are also prone to deformation. Utility Model Content

[0004] The purpose of this invention is to provide a lightweight shock-absorbing structure for wheelchairs, aiming to solve the problems of poor shock absorption and inadequate stability in existing wheelchairs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight shock-absorbing structure for wheelchairs is provided, comprising a support base, a swing base, and a shock absorber. One end of the shock absorber is rotatably connected to the support base, the other end of the shock absorber is rotatably connected to one end of the swing base, and the other end of the swing base is rotatably connected to the support base.

[0007] Optionally, the lightweight shock-absorbing structure for the wheelchair further includes a connecting shaft and a movable wheel, one end of the connecting shaft being connected to the swing seat, and the other end of the connecting shaft being rotatably connected to the movable wheel.

[0008] Optionally, the lightweight shock-absorbing structure for wheelchairs also includes bearings, and the movable wheel is rotatably connected to the connecting shaft via the bearings.

[0009] Optionally, the swing seat includes a first connecting rod, a second connecting rod, and a connecting part. The connecting part is connected to the connecting shaft. One end of the first connecting rod is connected to the connecting part, and the other end of the first connecting rod is rotatably connected to the support seat. One end of the second connecting rod is connected to the connecting part, and the other end of the second connecting rod is rotatably connected to the shock absorber. When the shock absorber is in a non-compressed state, the first connecting rod is in a horizontal state.

[0010] Optionally, the swing seat is bent, one end of the second connecting rod is connected to the connecting part, and the other end of the second connecting rod is inclined downward and rotatably connected to the shock absorber.

[0011] Optionally, the support base has a C-shaped structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In the lightweight shock-absorbing structure for wheelchairs provided by this utility model, the swing seat and shock absorber are fixed to the support seat with screws, and the movable wheel is fixed to the swing seat. When unloaded, the shock absorber is in an extended state. When carrying a person and bearing weight, the shock absorber is slightly compressed according to the load weight. When carrying a person on a bumpy road, the movable wheel contacts the ground and drives the swing seat to move up and down with the ground. The shock absorber is compressed and extended with the up and down movement of the swing seat, reducing the bumpy feeling transmitted to the human body, thereby achieving the shock absorption effect of the wheelchair. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the lightweight shock absorption structure for wheelchairs according to this utility model;

[0016] Figure 2 This is a schematic diagram of the shock absorber of the lightweight shock absorption structure for wheelchairs of this utility model when it is in an uncompressed state;

[0017] Figure 3 This is a schematic diagram of the shock absorber of the lightweight shock-absorbing structure for wheelchairs of this utility model when it is in a compressed state.

[0018] Figure 4 This is a structural schematic diagram of the wheelchair of this utility model;

[0019] Figure 5 This is a structural schematic diagram of the wheelchair of this utility model from another angle.

[0020] In the diagram: 1. Support seat; 2. Swing seat; 21. First connecting rod; 22. Second connecting rod; 23. Connecting part; 3. Shock absorber; 4. Connecting shaft; 5. Moving wheel; 6. Bearing; 7. Dust cover; 8. Frame; 9. Guide wheel; 10. Mounting seat; 11. Shock absorber. Detailed Implementation

[0021] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0024] The following is combined Figures 1 to 5 This invention describes a lightweight shock-absorbing structure for wheelchairs.

[0025] like Figures 1 to 5 As shown, this utility model provides a lightweight shock absorption structure for wheelchairs, including a support base 1, a swing base 2, and a shock absorber 3. One end of the shock absorber 3 is rotatably connected to the support base 1, and the other end of the shock absorber 3 is rotatably connected to one end of the swing base 2. The other end of the swing base 2 is rotatably connected to the support base 1.

[0026] For ease of explanation, in this embodiment, each orientation is as follows: Figure 4 As shown.

[0027] In the lightweight shock-absorbing structure for wheelchairs provided in this embodiment, the support seat 1 provides support for the entire shock absorption process, the swing seat 2 is mainly used to connect the wheels of the wheelchair, and the shock absorber 3 plays a shock absorption role. When the wheelchair passes over a bumpy road, the wheels can drive the swing seat 2 to move upward, so that the shock absorber 3 is in a compressed state. When the wheelchair moves away from the bumpy road, the shock absorber 3 drives the swing seat 2 to drive the wheels downward. Throughout the entire process, the support seat 1 always remains in a horizontal state, that is, the entire wheelchair always remains in a horizontal state, thereby achieving the shock absorption effect, avoiding the phenomenon of the wheelchair tilting as a whole, and improving stability and safety performance.

[0028] It is understandable that the support seat 1 serves a supporting function. Therefore, in some cases, the support seat 1 can also be understood as the frame 8. The swing seat 2 and the shock absorber 3 can be directly connected to the frame 8 to achieve the same shock absorption effect.

[0029] In some embodiments, the lightweight shock-absorbing structure for wheelchairs also includes a connecting shaft 4 and a movable wheel 5. One end of the connecting shaft 4 is connected to the swing seat 2, and the other end of the connecting shaft 4 is rotatably connected to the movable wheel 5. Specifically, the movable wheel 5 is used to provide movement, and the connecting shaft 4 plays a connecting and supporting role, enabling the movable wheel 5 to rotate better.

[0030] In some embodiments, the lightweight shock-absorbing structure for wheelchairs also includes a bearing 6, through which the movable wheel 5 is rotatably connected to the connecting shaft 4, making the rotation of the movable wheel 5 smoother.

[0031] Furthermore, the lightweight shock-absorbing structure for wheelchairs also includes a dust cover 7, a connecting shaft 4 which is a double-ended screw, and the middle part of the connecting shaft 4 is rotatably connected to the moving wheel 5 through a bearing 6. One end of the connecting shaft 4 is threaded to the swing seat 2, and the other end of the connecting shaft 4 is threaded to the dust cover 7. The dust cover 7 is located on the outside of the moving wheel 5 and can prevent dust from entering the connection between the moving wheel 5 and the connecting shaft 4.

[0032] In some embodiments, the swing seat 2 includes a first connecting rod 21, a second connecting rod 22, and a connecting part 23. The connecting part 23 is connected to the connecting shaft 4. One end of the first connecting rod 21 is connected to the connecting part 23, and the other end of the first connecting rod 21 is rotatably connected to the support seat 1. One end of the second connecting rod 22 is connected to the connecting part 23, and the other end of the second connecting rod 22 is rotatably connected to the shock absorber 3. When the shock absorber 3 is in a non-compressed state, the first connecting rod 21 is in a horizontal state.

[0033] Specifically, the overall shape of the swing seat 2 is bent. When the shock absorber 3 is in an uncompressed state, the first connecting rod 21 is in a horizontal state, that is, the entire wheelchair is also in a horizontal state, which makes the riding comfort better. The bent design can better resist the impact of bumpy roads and has better structural stability.

[0034] In some embodiments, the swing seat 2 is bent, one end of the second connecting rod 22 is connected to the connecting part 23, and the other end of the second connecting rod 22 is inclined downward and rotatably connected to the shock absorber 3. It can be understood that the swing seat 2 is bent downward as a whole, which can better resist the upward impact force brought by the bumpy road surface and has better structural stability.

[0035] In some embodiments, the support base 1 has a C-shaped structure, which provides better structural stability.

[0036] This utility model also provides a wheelchair, including a frame 8 and the aforementioned lightweight shock-absorbing structure for wheelchairs. The lightweight shock-absorbing structure for wheelchairs is connected to the frame 8. It is understood that by adopting the aforementioned lightweight shock-absorbing structure for wheelchairs, the shock absorption performance is better, the stability is better, the safety performance is better, and it is more convenient to use.

[0037] In some embodiments, the support base 1 of the lightweight shock-absorbing structure for wheelchairs is installed on the bottom of the frame 8 by bolts and nuts, making both disassembly and installation very convenient.

[0038] In some embodiments, the wheelchair also includes guide wheels 9, which are connected to the frame 8 and serve as guides, making it more convenient to use.

[0039] In some embodiments, the wheelchair also includes a mounting base 10 and a shock absorber 11. The guide wheel 9 is rotatably connected to the mounting base 10, and the mounting base 10 is connected to the frame 8 through the shock absorber 11, which can play a basic shock absorption role.

[0040] In some embodiments, the lightweight shock-absorbing structure for wheelchairs is located at the rear of the frame 8, and the guide wheel 9 is located at the front of the frame 8. Since the user's overall weight is generally located at the rear of the wheelchair, using a lightweight shock-absorbing structure for wheelchairs at the rear of the frame 8 results in more significant shock absorption and a better riding experience for the user.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lightweight shock-absorbing structure for wheelchairs, characterized in that, It includes a support base (1), a swing base (2) and a shock absorber (3). One end of the shock absorber (3) is rotatably connected to the support base (1), and the other end of the shock absorber (3) is rotatably connected to one end of the swing base (2). The other end of the swing base (2) is rotatably connected to the support base (1). The lightweight shock-absorbing structure for wheelchairs also includes a connecting shaft (4) and a moving wheel (5). One end of the connecting shaft (4) is connected to the swing seat (2), and the other end of the connecting shaft (4) is rotatably connected to the moving wheel (5). The lightweight shock-absorbing structure for wheelchairs also includes a bearing (6), and the moving wheel (5) is rotatably connected to the connecting shaft (4) through the bearing (6).

2. The lightweight shock-absorbing structure for wheelchairs according to claim 1, characterized in that, The swing seat (2) includes a first connecting rod (21), a second connecting rod (22), and a connecting part (23). The connecting part (23) is connected to the connecting shaft (4). One end of the first connecting rod (21) is connected to the connecting part (23), and the other end of the first connecting rod (21) is rotatably connected to the support seat (1). One end of the second connecting rod (22) is connected to the connecting part (23), and the other end of the second connecting rod (22) is rotatably connected to the shock absorber (3). When the shock absorber (3) is in a non-compressed state, the first connecting rod (21) is in a horizontal state.

3. The lightweight shock-absorbing structure for wheelchairs according to claim 2, characterized in that, The swing seat (2) is bent, one end of the second connecting rod (22) is connected to the connecting part (23), and the other end of the second connecting rod (22) is tilted downward and rotatably connected to the shock absorber (3).

4. The lightweight shock-absorbing structure for wheelchairs according to claim 1, characterized in that, The support base (1) has a C-shaped structure.

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