Wheelchair horizontal automatic adjusting mechanism

Abstract

The utility model discloses a horizontal automatic adjusting mechanism of a wheelchair, which comprises a support body spanning the bottom of the horizontal automatic adjusting mechanism of the wheelchair, and two side beams which are obliquely and upwards connected with each other by taking the left end part and the right end part of the support body as starting points and are symmetrically arranged, an adjusting seat plate is jointly connected between the same height positions of the two side beams through rotary connecting assemblies; the bottom face of the side, away from the rotary connecting assembly, of the adjusting base plate is movably connected with a supporting body downwards through an electric cylinder. A gyroscope and a controller are installed on the bottom face of the adjusting seat plate, and the controller is electrically connected with the gyroscope and the electric cylinder. According to the wheelchair horizontal automatic adjusting mechanism, the angle of the seat can be automatically adjusted according to the slope where the wheelchair is located, so that the stability of the body of a user is kept, and the riding comfort and safety of the user are improved. The mechanism can monitor topographic changes in real time and automatically adjust the topographic changes, manual operation of a user is not needed, and the intelligent level and the user experience of the wheelchair are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an automatic adjusting mechanism, especially a wheelchair horizontal automatic adjusting mechanism. BACKGROUND

[0002] In the existing wheelchair design, when the user is on an uphill or downhill, the seat angle of the wheelchair is usually kept parallel to the ground, which ignores the influence of terrain changes on the user's riding experience, resulting in the user's body tilting backward or forward when driving on a slope. Especially when going downhill, the user's body forward leaning will cause an unstable fear, and in severe cases, it may even cause safety hazards.

[0003] To solve this problem, a mechanism is needed that can automatically adjust the seat level according to the terrain. Although there are some wheelchairs on the market that can adjust the seat angle, these adjustments usually require manual operation by the user, which is not only inconvenient to use, but also in the actual use process, the user often cannot accurately determine when and how to adjust the seat angle, resulting in insufficient timely adjustment and poor riding experience. SUMMARY

[0004] To solve the above technical problems, the utility model provides a wheelchair horizontal automatic adjusting mechanism.

[0005] To solve the above technical problems, the utility model adopts the technical scheme: a wheelchair horizontal automatic adjusting mechanism, including the support body that spans in the bottom of the wheelchair horizontal automatic adjusting mechanism, the left and right two end parts of the support body are respectively inclined upward and connected with a side beam, the two side beams are symmetrically arranged, and the same height position of the two side beams is connected with an adjusting seat plate through a rotating connection assembly;

[0006] The side of the adjusting seat plate away from the rotating connection assembly is connected to the support body through an electric cylinder.

[0007] The bottom surface of the adjusting seat plate is installed with a gyroscope and a controller, and the controller is electrically connected with the gyroscope and the electric cylinder.

[0008] Further, the support body adopts a U-shaped support, and the support body is composed of a horizontal beam and two symmetric vertical beams, and the lower end of each vertical beam is fixedly connected with the side beam.

[0009] Further, a reinforcing column is arranged around the bottom surface of the adjusting seat plate, one end of the electric cylinder is hinged to the reinforcing column near the rear side of the adjusting seat plate, and the other end of the electric cylinder is hinged to the horizontal beam.

[0010] Further, the rotating connection assembly comprises a cylindrical shaft and a sleeve connector rotatingly connected to the cylindrical shaft through a central hole, the cylindrical shaft is transversely connected to the side beams, and the sleeve connector is fixedly connected to the reinforcing columns near the left and right sides of the adjusting seat plate.

[0011] Further, the rotating connection assembly comprises a cylindrical shaft and a sleeve connector rotatingly connected to the cylindrical shaft through a central hole, the cylindrical shaft is transversely connected to the side beams, and the sleeve connector is fixedly connected to the reinforcing columns near the left and right sides of the adjusting seat plate.

[0012] Further, the rotating connection assembly comprises a cylindrical shaft and a sleeve connector rotatingly connected to the cylindrical shaft through a central hole, the cylindrical shaft is transversely connected to the side beams, and the sleeve connector is fixedly connected to the reinforcing columns near the left and right sides of the adjusting seat plate.

[0013] Further, the rotating connection assembly comprises a cylindrical shaft and a sleeve connector rotatingly connected to the cylindrical shaft through a central hole, the cylindrical shaft is transversely connected to the side beams, and the sleeve connector is fixedly connected to the reinforcing columns near the left and right sides of the adjusting seat plate.

[0014] The utility model discloses a kind of wheelchair horizontal automatic adjusting mechanism, at least has following advantage:

[0015] 1. Improve comfort: by automatically adjusting seat height, ensure that wheelchair always keeps level during use, provide smooth riding experience for users, especially when climbing or going up and down stairs, reduce jolt and discomfort.

[0016] 2. Enhance safety: automatic adjustment mechanism reduces instability factors of wheelchair on uneven road, reduces the risk of overturning, improves the safety of users.

[0017] 3. Real-time response: gyroscope can monitor the inclination angle and motion state of wheelchair in real time, ensure that seat height can quickly respond to changes in road, improve the adaptability of wheelchair.

[0018] 4. Precise adjustment: the data processing algorithm built-in controller can accurately calculate the height and direction that seat should adjust, through the synchronous work of two electric cylinders, precise height adjustment is realized.

[0019] 5. Reduce physical burden: automatic adjustment mechanism reduces the physical labor of users adjusting seat height, especially for users with limited mobility, this function is very helpful.

[0020] 6. Easy to operate: the design of electric cylinder and controller makes the adjustment of seat height can be completed through simple electronic instructions, easy to operate, without complex manual adjustment.

[0021] 7. Improve wheelchair applicability: this automatic adjustment mechanism can adapt to different terrain and environment, increase the use range of wheelchair, so that it can provide good support in various road conditions.

[0022] 8. Optimizing space utilization: The footrest connecting rod storage design in embodiment two allows the footrest assembly to be compactly stored when not in use, saving space and facilitating user access.

[0023] 9. Enhancing wheelchair functionality: By introducing the footrest support and connecting rod design, the wheelchair not only has the function of automatic height adjustment, but also increases the comfort of the footrest, improving the overall functionality of the wheelchair.

[0024] 10. Improving quality of life: For wheelchair users, having a more comfortable and safer mode of transportation will undoubtedly greatly improve their quality of life. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Structure diagram of embodiment one of the present application.

[0026] Figure 2 Structure diagram of embodiment one of the present application. Figure 1

[0027] Figure 3 Structure diagram of embodiment one of the present application. Figure 1 .

[0028] Figure 4 Structure diagram of embodiment one of the present application. Figure 2 .

[0029] In the figure: 100, support body; 200, side beam; 300, adjusting seat plate; 400, electric cylinder; 500, gyroscope; 600, controller; 700, rotating connection assembly; 800, footrest support; 900, footrest connecting rod; 101, No. 1 cross beam; 102, No. 1 vertical beam; 301, reinforcing column; 701, cylindrical shaft; 702, sleeve connecting piece; 801, No. 2 cross beam; 802, No. 2 vertical beam; 901, gas spring. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.

[0031] Embodiment one;

[0032] Figure 1 ​The illustrated automatic wheelchair leveling mechanism includes a support body 100 spanning the bottom of the mechanism. The support body 100 is a U-shaped bracket and consists of a first horizontal beam 101 and two symmetrical first vertical beams 102 on either side. The first vertical beams 102 serve as the left and right ends of the support body 100, each connected to a side beam 200 at an upward angle from its respective end. Therefore, each first vertical beam 102 is fixedly connected to the lower end of the side beam 200 at a corresponding position. In this embodiment, the first horizontal beam 101 and the first vertical beam 102 are hollow tubes; in other embodiments, solid tubes can also be used. Furthermore, the shape of the bracket is not limited to U-shape; a straight horizontal beam can be used, as long as it serves to connect the side beams at the ends.

[0033] In all embodiments, two side beams 200 are symmetrically arranged on the support body 100. The two side beams 200 are connected to an adjustable seat plate 300 at the same height position by a rotating connection assembly 700. Generally, as shown in this embodiment, the connection point of the rotating connection assembly is located at the top of the side beam, which is beneficial to raising the height of the adjustable seat plate. The adjustable seat plate is a seat plate with its upper end face for supporting the human body. The rotating connection assembly is a component that plays a rotating connection role between the side beam and the adjustable seat plate. In order to improve the strength of the adjustable seat plate 300 and facilitate the connection of the adjustable seat plate 300 with other components, a ring of reinforcing columns 301 is provided on the outer edge of the bottom surface of the adjustable seat plate 300.

[0034] In this embodiment, the rotating connection assembly 700 includes, as follows: Figure 2 The cylindrical shaft 701 shown and the sleeve connector 702 rotatably connected to the cylindrical shaft 701 through the central hole are shown. The cylindrical shaft 701 is fixedly connected to the side beam 200 in the transverse direction. The sleeve connector 702 is fixedly connected to the reinforcing columns 301 on the left and right sides near the adjusting seat plate 300. The sleeve connector 702 is rotatably connected to the cylindrical shaft 701 through the central hole. The adjusting seat plate can change the angle on the side beam under the force.

[0035] The bottom surface of the adjusting seat plate 300, away from the rotating connecting assembly, is movably connected downward to the support body 100 via an electric cylinder 400. Specifically, one end of the electric cylinder 400 is hinged to a reinforcing column 301 near the rear side of the adjusting seat plate 300, and the other end of the electric cylinder 400 is hinged to a first crossbeam 101. There are two electric cylinders 400, arranged side by side between the reinforcing column 301 and the first crossbeam 101.

[0036] The bottom surface of the adjusting seat plate 300 is mounted on the gyroscope 500 and the controller 600, and the controller 600 is electrically connected to the gyroscope 500 and the electric cylinder 400. The purpose of mounting the gyroscope on the adjusting seat plate 300 is to enable the gyroscope to monitor the inclination angle and motion state of the adjusting seat plate in real time. When the wheelchair encounters a bumpy road during travel, the gyroscope will detect the change in the inclination of the wheelchair. The gyroscope transmits the detected data to the controller. The controller has a data processing algorithm built-in, which can calculate the height and direction that the seat should be adjusted according to the data of the gyroscope. The controller is electrically connected to the driver of the electric cylinder, and when the controller determines that the seat needs to be adjusted in height, it will send a signal to the electric cylinder to command the electric cylinder to extend or shorten. Since two electric cylinders are provided in the present application and are arranged side by side between the reinforcing columns and the cross beams, the synchronicity and accuracy of the adjustment can be guaranteed. The electric cylinder extends or shortens according to the instructions of the controller, thereby adjusting the height of the adjusting seat plate, offsetting the bumps in the road, and keeping the seat always parallel to the ground.

[0037] Embodiment two;

[0038] Figure 3 and Figure 4 As shown in FIG. 8, on the basis of embodiment one, a footrest support 800 is rotatably connected between the cylindrical shafts 701 of the two side beams 200, and the sleeve connecting piece 702 is located between the footrest support 800 and the side beam 200 on the same side. The footrest support 800 adopts a U-shaped support, which is composed of a second cross beam 801 and two second vertical beams 802 that are symmetrically arranged on both sides. The middle part of each second vertical beam 802 is hingedly connected with a footrest connecting rod 900, and the middle part of each reinforcing column 301 near the left and right sides of the adjusting seat plate 300 is hingedly connected with an air spring 901. The footrest connecting rod 900 is hingedly connected with the air spring 901 on the corresponding side.

[0039] In embodiment two, the design of the footrest connecting rod is realized. The footrest connecting rod 900 is connected through the hinge points between the middle part of the second vertical beam 802 and the air spring 901. These hinge points should be designed to be freely rotatable for easy folding. The footrest connecting rod 900 is folded backward, and the second vertical beam 802 is close to the adjusting seat plate 300, reducing the occupied space. The air spring 901 should be of a type with good compression and reset performance, which can provide support force when unfolded and folded. The hinge point positions of the air spring 901 and the footrest connecting rod 900 can be simultaneously hingedly connected with the wheelchair back. When the air spring 901 is unfolded, it simultaneously pushes the wheelchair back to fold in the direction close to the adjusting seat plate 300. Through the above design and steps, the footrest connecting rod can be compactly stored when not in use and conveniently unfolded when in use, improving the overall practicality of the wheelchair and the user experience.

[0040] In conclusion, the utility model discloses can be adjusted the height of seat according to the ups and downs of road surface in the process of wheelchair advancing, let the user in the climbing, up and down stairs etc. Condition can feel like on the ground as stable.

[0041] The above embodiment is not a limitation of the utility model, and the utility model is not limited to the above examples, and the changes, modifications, additions or replacements made by the person skilled in the art within the technical scheme range of the utility model also belong to the protection range of the utility model.

Claims

1. A wheelchair horizontal automatic adjustment mechanism, characterized by, Including the support body that is across the wheelchair horizontal automatic adjusting mechanism bottom, each side beam is inclined to upwardly connect with the both ends of the support body as the starting point, two side beams are symmetrically arranged, and the same height position of two side beams is commonly connected with the adjusting seat plate through the rotating connection assembly respectively; The side bottom surface of the adjusting seat plate away from the rotating connection assembly is connected with the support body through the electric cylinder; The bottom surface of the adjusting seat plate is installed in the gyroscope and the controller, and the controller is electrically connected with the gyroscope and the electric cylinder.

2. The wheelchair level automatic adjustment mechanism according to claim 1, characterized in that: The support body adopts a U-shaped support, and the support body is composed of a horizontal beam and two symmetric vertical beams, each vertical beam is fixedly connected with the lower end of the side beam at the corresponding position.

3. The wheelchair level automatic adjustment mechanism of claim 2, wherein: The bottom surface of the adjusting seat plate is provided with a circle of reinforcing columns, one end of the electric cylinder is hinged to the reinforcing column near the rear side of the adjusting seat plate, and the other end of the electric cylinder is hinged to the horizontal beam.

4. The wheelchair level automatic adjustment mechanism of claim 3, wherein: The rotating connection assembly includes a cylindrical shaft and a sleeve connector rotatingly connected to the cylindrical shaft through a central hole, the cylindrical shaft is connected to the side beam in the transverse direction, and the sleeve connector is fixedly connected to the reinforcing columns near the left and right sides of the adjusting seat plate.

5. The wheelchair level automatic adjustment mechanism of claim 4, wherein: The cylindrical shafts of the two side beams are commonly connected with the foot support through the sleeve connector.

6. The wheelchair level automatic adjustment mechanism of claim 5, wherein: The foot support adopts a U-shaped support, and the foot support is composed of a horizontal beam and two symmetric vertical beams, the middle part of the vertical beam is hinged with a foot connecting rod, the middle part of the reinforcing column near the left and right sides of the adjusting seat plate is hinged with an air spring, and the foot connecting rod is hinged with the air spring at the corresponding side.

7. The wheelchair level automatic adjustment mechanism of claim 3, wherein: The electric cylinder has two, and the two electric cylinders are arranged side by side between the reinforcing column and the horizontal beam.

Images