Wheelchair motor drive structure

Abstract

This utility model discloses a motor transmission structure, belonging to the field of wheelchair technology, specifically relating to a wheelchair motor transmission structure, including: a left motor assembly and a right motor assembly; the left motor assembly and the right motor assembly have the same structure and are arranged symmetrically; each of the left motor assembly and the right motor assembly includes: an input motor, a transmission gear set, and an output gear assembly; the input motor, the transmission gear set, and the output gear assembly are installed in a straight line, and the centers of the input motor, the transmission gear set, and the output gear assembly are on the same axis; this utility model uses a straight structure in the installation process of the gear set, which results in a larger gearbox size, but when assembled onto the wheelchair, a staggered installation method can be selected to reduce the packaging space after folding, thereby reducing transportation and storage costs.

Description

Technical Field

[0001] This utility model discloses a motor transmission structure, belonging to the field of wheelchair technology, specifically relating to a wheelchair motor transmission structure. Background Technology

[0002] The working principle of electric folding wheelchairs is mainly based on the combination of an intelligent control system and optimized mechanical structure. Built-in chips and sensors receive operating commands in real time (such as direction control and speed adjustment), and some high-end models support Bluetooth connection to a smartphone app for remote control. Furthermore, they feature a foldable design, using a snap-fit ​​structure for quick folding and securing, reducing weight and improving portability. Some models are equipped with a smart chip driving the motor to complete the folding action, requiring only a button press to unfold or retract.

[0003] The motor drive structure of existing electric folding wheelchairs is as follows: Figure 1 As shown, it includes: input motor 1, transmission gear set 2, output gear assembly 3, left motor assembly 4, and right motor assembly 5;

[0004] The input motor 1, transmission gear set 2, and output gear assembly 3 form a triangular structure, which has the advantage of allowing the gearbox to be made smaller.

[0005] However, this structure also has the following drawbacks:

[0006] like Figure 2 As shown, because the output gear assembly 3 must be coaxially mounted during installation, the distance between the output ends of the left motor assembly 4 and the right motor assembly 5 is relatively large, making it impossible to reduce packaging space. Furthermore, due to structural limitations, even when staggered installation (such as...) Figure 3 (As shown) it also cannot reduce packaging space. Utility Model Content

[0007] Purpose of the utility model: To provide a wheelchair motor transmission structure to solve the problems mentioned above.

[0008] Technical solution: A wheelchair motor transmission structure, the motor transmission structure comprising: a left motor assembly and a right motor assembly;

[0009] The left motor assembly and the right motor assembly have the same structure and are arranged symmetrically.

[0010] Both the left motor assembly and the right motor assembly include: an input motor, a transmission gear set, and an output gear assembly; the input motor, the transmission gear set, and the output gear assembly are mounted in a straight line, and the centers of the input motor, the transmission gear set, and the output gear assembly are on the same axis.

[0011] In a further embodiment, the input motor shaft is provided with a drive gear.

[0012] In a further embodiment, the transmission gear set consists of a first driven gear and a second driven gear; the first driven gear and the second driven gear are connected by a transmission shaft.

[0013] In a further embodiment, the output gear is composed of a driven gear, which is connected via a drive shaft.

[0014] In a further embodiment, the driving gear meshes with the first driven gear, the first driven gear rotates synchronously with the second driven gear, and the driven gear meshes with the second driven gear.

[0015] In a further embodiment, the diameter of the first driven gear is greater than the diameter of the second driven gear and the diameter of the driving gear.

[0016] Beneficial effects: In the installation process of the gear set, the linear structure of this utility model results in a larger external size of the gearbox. However, when assembling it onto the wheelchair, an interlaced installation method can be selected to reduce the packaging space after folding, thereby reducing transportation and storage costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the motor drive structure of a traditional electric folding wheelchair.

[0018] Figure 2 This is a schematic diagram of the coaxial installation of the motor drive structure of a traditional electric folding wheelchair.

[0019] Figure 3 This is a schematic diagram of the interlaced installation of the motor drive structure in a traditional electric folding wheelchair.

[0020] Figure 4 This is a schematic diagram of the motor transmission structure of the electric folding wheelchair of this utility model.

[0021] Figure 5 This is a schematic diagram of the coaxial installation of the motor transmission structure of the electric folding wheelchair of this utility model.

[0022] Figure 6 This is a schematic diagram of the staggered installation of the motor drive structure of the electric folding wheelchair of this utility model.

[0023] Reference numerals: 6. Input motor; 7. Transmission gear set; 8. Output gear assembly; 9. Left motor assembly; 10. Right motor assembly. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] 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 a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] A wheelchair motor drive structure includes: a left motor assembly and a right motor assembly;

[0028] In one embodiment, such as Figures 4 to 6 As shown, the left motor assembly and the right motor assembly have the same structure and are arranged symmetrically.

[0029] In one embodiment, such as Figures 4 to 6 As shown, both the left motor assembly and the right motor assembly include: an input motor, a transmission gear set, and an output gear assembly; the input motor, the transmission gear set, and the output gear assembly are mounted in a straight line, and the centers of the input motor, the transmission gear set, and the output gear assembly are on the same axis.

[0030] In one embodiment, such as Figures 4 to 6 As shown, the input motor has a drive gear on its shaft.

[0031] In one embodiment, such as Figures 4 to 6As shown, the transmission gear set consists of a first driven gear and a second driven gear; the first driven gear and the second driven gear are connected by a transmission shaft.

[0032] In one embodiment, such as Figures 4 to 6 As shown, the output gear is composed of a driven gear, which is connected via a transmission shaft.

[0033] In one embodiment, such as Figures 4 to 6 As shown, the driving gear meshes with the first driven gear, the first driven gear rotates synchronously with the second driven gear, and the driven gear meshes with the second driven gear.

[0034] In one embodiment, such as Figures 4 to 6 As shown, the diameter of the first driven gear is greater than the diameter of the second driven gear and the diameter of the driving gear.

[0035] Working principle: such as Figure 4 As shown, the input motor, the transmission gear set, and the output gear set form a linear structure. Without increasing cost, this structure achieves the same effect as the original triangular structure when coaxially mounted (e.g., ...). Figure 5 (As shown). They can also be installed in an alternating pattern (e.g., Figure 6 As shown, this significantly saves packaging space.

[0036] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A wheel chair motor drive structure, characterized by comprising: The motor drive structure includes: a left motor assembly and a right motor assembly; The left motor assembly and the right motor assembly have the same structure and are arranged symmetrically. Both the left motor assembly and the right motor assembly include: an input motor, a transmission gear set, and an output gear assembly; the input motor, the transmission gear set, and the output gear assembly are mounted in a straight line, and the centers of the input motor, the transmission gear set, and the output gear assembly are on the same axis.

2. The electric motor transmission structure for a wheelchair according to claim 1, wherein The input motor has a drive gear on its shaft.

3. The electric motor drive structure for a wheelchair according to claim 2, wherein The transmission gear set consists of a first driven gear and a second driven gear; the first driven gear and the second driven gear are connected by a transmission shaft.

4. The electric motor transmission structure for a wheelchair according to claim 3, wherein The output gear is composed of a driven gear, which is connected via a drive shaft.

5. The wheelchair motor transmission structure according to claim 4, characterized in that, The driving gear meshes with the first driven gear, the first driven gear rotates synchronously with the second driven gear, and the driven gear meshes with the second driven gear.

6. The electric motor drive structure for a wheelchair according to claim 3, wherein The diameter of the first driven gear is greater than the diameter of the second driven gear and the diameter of the driving gear.

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