Mode-switchable intelligent electric wheelchair capable of assisting in defecation

Abstract

The invention relates to a mode-switchable intelligent electric wheelchair assisting in defecation. The intelligent electric wheelchair comprises an electric wheelchair body. Supporting plates are symmetrically and fixedly connected to the surface of the electric wheelchair body, translation structures are arranged in the supporting plates, sliding plates are slidably connected to the translation structures, lifting structures are arranged on the sliding plates, and auxiliary getting-up structures are arranged at the tops of the lifting structures. The auxiliary getting-up structure comprises a mounting frame fixed to the top of the lifting structure, mounting bottom plates are symmetrically hinged to an inner cavity of the mounting frame, and an auxiliary frame located between the two mounting bottom plates is further hinged to the inner cavity of the mounting frame. According to the invention, three functions of riding instead of walking, toileting and bathing are integrated on one device through functional accessories which can be quickly replaced, so that a user does not need to additionally purchase special devices such as a potty chair and a bathing chair, the problems of economic burden and living space occupation caused by repeated purchase of the devices are solved, and one machine with multiple purposes is realized.

Description

Technical Field

[0001] This invention relates to the field of assistive mobility technology for people with disabilities, specifically to a smart electric wheelchair with mode switching for toilet assistance. Background Technology

[0002] Currently, as an important assistive mobility tool, the technology and functions of intelligent electric wheelchairs are receiving increasing attention. Modern intelligent electric wheelchairs have evolved from traditional purely manual or simple electric drive to high-tech products that integrate multiple technologies such as environmental perception, intelligent navigation, human-computer interaction and autonomous obstacle avoidance, which greatly enhances the independent living ability and social participation of people with mobility impairments. However, existing smart electric wheelchairs are essentially still "mobility tools" with fixed seat structures and functions. When users need to use the toilet, bathe, or clean themselves, the wheelchair cannot provide any support. Users must laboriously transfer from the wheelchair to a dedicated commode, shower chair, or nursing bed. This process is not only time-consuming and laborious, but also extremely challenging for users with weak or paralyzed limbs, and carries a high risk of falls and slips. In addition, to solve problems such as using the toilet and bathing, users or nursing institutions have to purchase additional dedicated commode chairs, shower wheelchairs, or adjustable shower beds. This "one function, one device" model leads to the repeated purchase and accumulation of equipment, which not only occupies a lot of living space, but also brings a high economic burden. Summary of the Invention

[0003] The purpose of this invention is to provide a smart electric wheelchair with switchable modes for toilet assistance.

[0004] The objective of this invention is achieved through the following technical solution: a mode-switching smart electric wheelchair for toilet assistance, comprising an electric wheelchair body; The surface of the electric wheelchair body is symmetrically fixedly connected with a support plate. A translation structure is provided inside the support plate. A sliding plate is slidably connected to the translation structure. A lifting structure is provided on the sliding plate. An auxiliary standing structure is provided at the top of the lifting structure. The auxiliary lifting structure includes a mounting frame fixed to the top of the lifting structure. The inner cavity of the mounting frame is symmetrically hinged with mounting base plates. The inner cavity of the mounting frame is also hinged with an auxiliary frame located between the two mounting base plates. One end of the auxiliary frame is fixedly connected to a waist auxiliary support pad. Each mounting base plate and the auxiliary frame are hinged with a connecting rod. The tops of the two mounting bases are detachably connected to functional accessories. The functional accessories, the assistive standing structure, the lifting structure, and the translation structure together constitute a mode switching module. By replacing the functional accessories and driving the movement of each structure, the electric wheelchair can switch between mobile mode, toilet mode, and bathing mode.

[0005] The auxiliary lifting structure also includes a connecting plate a fixed to one end of each mounting base plate, and connecting plates b fixedly connected to both ends of the auxiliary frame. A connecting block a is hinged to the surface of each connecting plate b, and a connecting block b is hinged to the surface of each connecting plate a. A connecting column is slidably connected to the inner cavity of the connecting block a. One end of the connecting column is fixedly connected to one end of the connecting block b. An elastic element is sleeved on the surface of the connecting column between the connecting block a and the connecting block b.

[0006] The auxiliary lifting structure also includes a driven gear embedded in the surface of the auxiliary frame. A driving component is fixedly connected to the top of the mounting frame. A driving gear that meshes with the driven gear is fixed on the output shaft of the driving component. The driving component is a servo motor or a stepper motor with a reducer.

[0007] The functional accessories include a cushioned seat for mobile mode, a toilet seat with a central opening for urination, and a shower seat with drainage holes. The cushioned seat, toilet seat, and shower seat are detachably connected to the mounting base plate via quick-release pins. Each mounting base plate has a positioning hole at its top, and the bottom of each cushioned seat, toilet seat, and shower seat is fixedly connected to a positioning post that mates with the positioning hole.

[0008] The translation structure includes a lead screw, a guide rod, and a stepper motor that drives the lead screw, all disposed within the support plate. The sliding plate is screwed to the lead screw through a threaded hole and slidably connected to the guide rod through a linear bearing.

[0009] The lifting structure is one of a scissor lift, a screw lift mechanism, or a hydraulic lift cylinder, and its driving source is a servo motor. Foldable auxiliary support pads are symmetrically fixedly connected to the surface of the electric wheelchair body.

[0010] The electric wheelchair body has a mounting plate hinged to its inner cavity. A manual crank is fixed on the mounting plate, and a control panel is rotatably connected inside the mounting plate. The control panel integrates a touch screen or physical buttons for switching control modes.

[0011] A rechargeable lithium battery pack is installed at the bottom of the support plate, and an environmental sensing sensor group is installed on the electric wheelchair body. The environmental sensing sensor group includes at least one of an infrared sensor, an ultrasonic sensor, and a camera. Compared with the prior art, the advantages of the present invention are as follows: 1. In response to the problem of equipment accumulation and high cost caused by the existing technology of "one function, one device", this invention integrates three major functions of transportation, toileting and bathing into one device through quick-replaceable functional parts. Users no longer need to purchase special toilet chairs, shower chairs and other equipment, which solves the economic burden and living space occupation problem caused by repeated purchase of equipment and realizes "one machine for multiple uses".

[0012] 2. To address the problem of users having difficulty getting up after using the toilet and needing assistance from others, this invention uses a drive component to drive the active gear and driven gear to mesh and rotate the auxiliary frame. Then, through symmetrical connecting rods, the rotational motion is converted into a smooth tilting of the mounting base and the entire seat, thereby assisting the user to easily lean forward. This active assistive standing mechanism enables users to independently complete the private hygiene procedures after using the toilet.

[0013] 3. To address the issue of unstable sitting posture that users with mobility impairments may experience, this invention provides upward support to the user's lower back through a lumbar support pad fixed to the support frame during the assisted standing process, effectively preventing the user from falling backward due to leaning forward. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is a schematic diagram of the lifting structure of the present invention; Figure 4 For the present invention Figure 1 Disassembly diagram; Figure 5 This is a schematic diagram of the driven gear structure of the present invention; Figure 6 For the present invention Figure 4 Disassembly diagram; Figure 7 This is a schematic diagram of the toilet seat structure of the present invention; Figure 8 This is a schematic diagram of the bath seat structure of the present invention. Labeling Explanation: 1. Electric wheelchair body; 2. Support plate; 201. Sliding plate; 202. Lifting structure; 3. Mounting frame; 301. Mounting base plate; 302. Auxiliary frame; 303. Lumbar support pad; 304. Connecting rod; 4. Connecting plate a; 401. Connecting plate b; 402. Connecting block a; 403. Connecting block b; 404. Connecting column; 405. Elastic element; 5. Driven gear; 501. Drive component; 502. Drive gear; 6. Soft cushioned seat; 601. Toilet seat; 602. Shower seat; 603. Quick-release pin; 604. Positioning hole; 7. Folding auxiliary support pad; 8. Mounting plate; 801. Manual crank; 802. Control panel; 9. Rechargeable lithium battery pack; 901. Environmental sensing sensor group. Detailed Implementation

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figure 1 and 8 The diagram shown is an embodiment of a mode-switching smart electric wheelchair for toilet assistance provided by the present invention, including an electric wheelchair body 1; The surface of the electric wheelchair body 1 is symmetrically fixedly connected with a support plate 2. A translation structure is provided inside the support plate 2. A sliding plate 201 is slidably connected to the translation structure. A lifting structure 202 is provided on the sliding plate 201. An auxiliary standing structure is provided on the top of the lifting structure 202. The auxiliary lifting structure includes a mounting frame 3 fixed to the top of the lifting structure 202. The inner cavity of the mounting frame 3 is symmetrically hinged with mounting base plates 301. The inner cavity of the mounting frame 3 is also hinged with an auxiliary frame 302 located between the two mounting base plates 301. One end of the auxiliary frame 302 is fixedly connected to a waist auxiliary support pad 303. Each mounting base plate 301 and the auxiliary frame 302 are hinged with a connecting rod 304. The tops of the two mounting bases 301 are detachably connected to functional accessories. The functional accessories, the assistive standing structure, the lifting structure 202, and the translation structure together constitute the mode switching module. By replacing the functional accessories and driving the movement of each structure, the electric wheelchair can switch between mobile mode, toilet mode, and bathing mode. The lifting structure 202 is responsible for overall height adjustment, the translation structure is responsible for front and back position adjustment through the sliding plate 201, the auxiliary standing structure is responsible for posture change, and the replaceable functional accessories directly define the functional scenarios. Through modular integration, the three core functions of mobility, toileting, and bathing can be completed on a single device, fundamentally solving the problems of equipment accumulation, high costs, and space occupation caused by the "one function, one device" approach in existing technologies.

[0016] The auxiliary lifting structure also includes a connecting plate a4 fixed to one end of each mounting base plate 301, connecting plates b401 fixedly connected to both ends of the auxiliary frame 302, connecting blocks a402 hinged to the surface of each connecting plate b401, connecting blocks b403 hinged to the surface of each connecting plate a4, connecting columns 404 slidably connected to the inner cavity of the connecting blocks a402, one end of the connecting column 404 fixedly connected to one end of the connecting block b403, and an elastic element 405 sleeved on the surface of the connecting column 404 between the connecting blocks a402 and the connecting blocks b403; When the mounting base plate 301 starts to move during the rising or resetting process, it will drive the connecting plate a4 to move, which in turn will generate tension or pressure on the connecting block a402 through the connecting block b403 and the connecting column 404, causing the connecting block a402 and the connecting block b403 to rotate relative to each other, thereby compressing or releasing the elastic element 405 sleeved on the connecting column 404. The deformation process of the elastic element 405 absorbs and stores kinetic energy, and then slowly releases it, which plays an efficient damping and buffering role. It provides a smooth cushioning during the standing and resetting process, effectively absorbing mechanical shock and vibration, avoiding the abruptness and discomfort caused by traditional rigid mechanisms when starting and stopping, greatly improving the comfort and safety of use, and is especially suitable for users with weak bodies.

[0017] The auxiliary lifting structure also includes a driven gear 5 embedded in the surface of the auxiliary frame 302. A driving component 501 is fixedly connected to the top of the mounting frame 3. An active gear 502 that meshes with the driven gear 5 is fixed on the output shaft of the driving component 501. The driving component 501 is a servo motor or a stepper motor with a reducer. Upon receiving the command to stand up, the drive unit 501 (servo / stepper motor) starts, and the output shaft drives the drive gear 502 to rotate. The drive gear 502 meshes with the driven gear 5 fixed on the auxiliary frame 302, transmitting torque to the auxiliary frame 302 and driving it to rotate around the hinge point, thereby providing initial power for the entire standing up motion. It provides a smooth, reliable and controllable power output, ensuring that the force and angle of the assisted standing action are precisely adjustable. The gear transmission is highly efficient and the structure is compact. It can also precisely control the tilt angle of the seat by controlling the number of rotations of the drive component 501, so as to achieve precise assistance at a fixed angle and position.

[0018] The functional accessories include a cushioned seat 6 for mobile mode, a toilet seat 601 with a toilet hole in the center, and a shower seat 602 with drainage holes. The cushioned seat 6, the toilet seat 601, and the shower seat 602 are detachably connected to the mounting base plate 301 via quick-release pins 603. Each mounting base plate 301 has a positioning hole 604 on its top, and the bottom of the cushioned seat 6, the toilet seat 601, and the shower seat 602 are fixedly connected with positioning posts that mate with the positioning holes 604. When replacing parts, the quick-release pin 603 can be pulled out to release the lock and the positioning pin will come out of the positioning hole 604. When installing new parts, align the positioning pin at the bottom of the part with the positioning hole 604 on the mounting base plate 301 and insert it to achieve initial positioning and error prevention. Then insert the quick-release pin 603 to complete the final mechanical locking. Its internal spring ball mechanism provides locking feedback. It enables quick and reliable switching of scene functions, and different accessories are designed for specific scenes (such as toilet hole and drain hole) to meet diverse needs; the quick-release design makes operation simple and fast, and the positioning mechanism ensures the accuracy and stability of installation, reducing the threshold for use.

[0019] The translation structure includes a lead screw, a guide rod, and a stepper motor that drives the lead screw, all housed in the support plate 2. The sliding plate 201 is screwed to the lead screw through a threaded hole and slidably connected to the guide rod through a linear bearing. After receiving the pulse signal, the stepper motor rotates precisely, driving the lead screw to rotate. The sliding plate 201, which meshes with the lead screw through the thread, converts the rotational motion of the lead screw into its own linear motion under the constraint of the guide rod, thereby driving the entire seat unit on it to move forward or backward, achieving fine adjustment of the sitting posture. It achieves precise and smooth adjustment of the seat's fore-and-aft position. The screw drive has self-locking properties and can reliably stop at any position, ensuring stability during toilet adjustments. The guide rod and linear bearing ensure the straightness of the movement trajectory and prevent jamming.

[0020] The lifting structure 202 is one of a scissor lifting frame, a screw lifting mechanism or a hydraulic lifting cylinder, and its driving source is a servo motor. Folding auxiliary support pads 7 are symmetrically fixedly connected to the surface of the electric wheelchair body 1. Taking the scissor lift as an example, its servo motor drives the lead screw to change the included angle of the scissor arms, thereby realizing the vertical lifting of the entire platform. The folding auxiliary support pad 7 can be unfolded to provide additional support and increase stability. It offers powerful adaptability, matching various toilets and bathing facilities from low to high positions; multiple implementation methods provide design flexibility.

[0021] The inner cavity of the electric wheelchair body 1 is hinged with a mounting plate 8, a manual crank 801 is fixed on the mounting plate 8, and a control panel 802 is rotatably connected inside the mounting plate 8. The control panel 802 integrates a touch screen or physical buttons for switching control modes. Users can perform traditional directional control via the manual joystick 801, or trigger complex pre-programmed functions such as "mode switching" and "assistive standing" with a single touch via the touchscreen or buttons on the control panel 802. The hinged and rotating design of the mounting plate 8 allows users to adjust the control interface to the most comfortable position. It provides diverse and user-friendly human-computer interaction methods. The multi-directionally adjustable mounting plate 8 allows the control components to adapt to the optimal operating posture of different users. The control panel 802, which integrates mode switching control, simplifies the operation process and improves ease of use.

[0022] A rechargeable lithium battery pack 9 is provided at the bottom of the support plate 2, and an environmental perception sensor group 901 is provided on the electric wheelchair body 1. The environmental perception sensor group 901 includes at least one of an infrared sensor, an ultrasonic sensor, and a camera. The rechargeable lithium battery pack 9 serves as the power source for the entire machine. When performing automatic navigation tasks, the environmental perception sensor group 901 is used for distance measurement and contour recognition. The main controller plans the path and controls the omnidirectional wheel group to achieve precise movement and docking. The rechargeable lithium battery pack 9 provides long-lasting, clean power for all electric functions, ensuring the device's endurance and mobility. The environmental sensing sensor group 901 is the core of intelligent navigation and precise docking, enabling the wheelchair to automatically and safely move and align itself with the toilet, greatly improving automation and user experience.

[0023] The intelligent electric wheelchair with mode-switching toilet assistance described in this invention operates on the principle of smoothly switching between three modes—mobility, toilet use, and bathing—through the synergy of mechanical structure and intelligent control. The entire system is powered by a rechargeable lithium battery pack 9 and is uniformly scheduled by a main controller (the core of the intelligent control module) integrated within the control panel 802. The specific working process is as follows: When the user requests to "switch to toilet mode" via the touchscreen or voice command on the control panel 802; The main controller first controls the lifting structure 202 to descend to a safe height, and then controls the translation structure to move the sliding plate 201 and the seat unit above it backward, leaving operating space for replacing functional parts; The user or caregiver first removes the quick-release pin 603, lifts the current soft seat 6, and the positioning pin at the bottom of the seat 6 comes out of the positioning hole 604 of the mounting base plate 301. Then, the positioning pin at the bottom of the toilet seat 601 is aligned with the positioning hole 604 and lowered. Finally, the quick-release pin 603 is inserted to complete the mechanical locking. The quick-release pin 603 is equipped with a spring steel ball positioning mechanism. When it is inserted into place, it will make a "click" sound, providing clear tactile and audible feedback to ensure a reliable connection. After the parts are replaced, the user issues the command "go to the toilet". The main controller activates the environmental perception sensor group 901. The environmental perception sensor group 901 (infrared sensor) emits infrared rays and receives the echo reflected by the ceramic surface of the toilet. It drives the omnidirectional drive wheel set of the electric wheelchair body 1 to move in the manner of "translation" or "small radius turning". Finally, the hollow area of ​​the wheelchair is precisely aligned with and completely covers the toilet, and the parking error is controlled within 3 cm. After precisely stopping above the toilet, the main controller sends a command to the servo motor of the lifting structure 202 based on the preset toilet height data. If the lifting structure 202 is a scissor lift, the servo motor drives the lead screw to rotate, forcing the angle between the scissor arms to change, thereby achieving vertical extension and retraction. Subsequently, the user can control the translation structure via manual crank 801 or voice command. The stepper motor receives pulse signals and drives the lead screw to rotate precisely. The sliding plate 201, which is threadedly connected to the lead screw, converts the rotational motion of the lead screw into its own linear motion under the constraint of the guide rod and linear bearing, thereby driving the entire seat unit to move back and forth relative to the electric wheelchair body 1, with a stroke of 0-25 cm. This allows the user to adjust their buttocks to be directly above the toilet bowl according to their body shape and habits. After using the toilet, the user triggers the "assist getting up" command, and the drive component 501 (servo motor or stepper motor with reducer) starts, outputting a strong torque to drive the drive gear 502 to rotate. The drive gear 502 meshes with the driven gear 5 tightly embedded on the auxiliary frame 302, transmitting power to the auxiliary frame 302, causing it to rotate clockwise (viewed from the side) around its hinge point on the mounting frame 3. The rotation of the auxiliary frame 302 is the "power source" of the entire standing up movement. Its rotational motion is converted into a compound motion of the mounting base plate 301 through two sets of symmetrical connecting rods 304. Specifically, the two ends of each connecting rod 304 are respectively hinged to the auxiliary frame 302 and the mounting base plate 301. When the auxiliary frame 302 rotates upward, it applies a thrust to the mounting base plate 301 through the connecting rods 304, which includes both "upward" and "forward" components. This forces the two mounting base plates 301 and all the functional accessories on them to flip forward and upward around their hinge points on the mounting frame 3, forming an inclination angle of 15°-30°. This helps the user lean forward to stand up, making it easier to handle the hygiene of private parts. This angle is precisely controlled by the number of rotations of the drive component 501. To ensure a smooth and comfortable standing process and avoid impact on the user's waist, the connecting plate a4 fixed to the mounting base 301 moves at the moment it begins to rotate, causing the connecting block b403 hinged to it to move. The connecting block b403 exerts a pulling force on the connecting block a402 through the connecting post 404. The connecting block a402 is hinged to the connecting plate b401 fixed to the auxiliary frame 302. This movement forces the connecting block b403 and the connecting block a402 to rotate relative to each other, compressing the elastic element 405 sleeved on the connecting post 404. The compression process of the elastic element 405 absorbs the impact energy of the initial movement and converts it into elastic potential energy. At the end of the standing movement, this potential energy is slowly released, playing a damping and buffering role. During the entire process of getting up, the user can fix their waist against the lumbar support pad 303 at the front end of the auxiliary frame 302. At this time, the user's waist will be supported by the lumbar support pad 303, which is directed upwards to balance the downward gravity and prevent the user from falling backwards. At the same time, the gravity sensor in the system (integrated at the bottom of the mounting frame 3) monitors the user's weight distribution in real time. If an abnormality is detected (such as the user not sitting firmly), all motion mechanisms will be locked immediately. In shower mode, the shower seat 602 is replaced with a drain hole that can quickly drain away accumulated water. After the wheelchair is moved to the shower area, the lifting structure 202 can be adjusted to a suitable shower height, and the folding auxiliary support pad 7 can be unfolded to provide additional support and increase stability.

Claims

1. A mode-switching smart electric wheelchair for toilet assistance, comprising: Electric wheelchair body (1); The features are as follows: a support plate (2) is symmetrically fixedly connected to the surface of the electric wheelchair body (1), a translation structure is provided inside the support plate (2), a sliding plate (201) is slidably connected to the translation structure, a lifting structure (202) is provided on the sliding plate (201), and an auxiliary standing structure is provided on the top of the lifting structure (202); The auxiliary lifting structure includes a mounting frame (3) fixed to the top of the lifting structure (202). The inner cavity of the mounting frame (3) is symmetrically hinged with mounting base plates (301). The inner cavity of the mounting frame (3) is also hinged with an auxiliary frame (302) located between the two mounting base plates (301). One end of the auxiliary frame (302) is fixedly connected with a waist auxiliary support pad (303). Each mounting base plate (301) and the auxiliary frame (302) are hinged with a connecting rod (304). The tops of the two mounting base plates (301) are detachably connected to functional accessories. The functional accessories, the assistive standing structure, the lifting structure (202), and the translation structure together constitute a mode switching module. By replacing the functional accessories and driving the movement of each structure, the electric wheelchair can switch between the movement mode, the toilet mode, and the bathing mode.

2. The mode-switching intelligent electric wheelchair for toileting assistance according to claim 1, characterized in that: The auxiliary lifting structure also includes a connecting plate a (4) fixed to one end of each mounting base plate (301), and connecting plates b (401) are fixedly connected to both ends of the auxiliary frame (302). A connecting block a (402) is hinged to the surface of each connecting plate b (401), and a connecting block b (403) is hinged to the surface of each connecting plate a (4). A connecting column (404) is slidably connected to the inner cavity of the connecting block a (402). One end of the connecting column (404) is fixedly connected to one end of the connecting block b (403). An elastic element (405) is sleeved on the surface of the connecting column (404) between the connecting block a (402) and the connecting block b (403).

3. The mode-switching intelligent electric wheelchair for toileting assistance according to claim 1, characterized in that: The auxiliary lifting structure also includes a driven gear (5) embedded in the surface of the auxiliary frame (302). A driving component (501) is fixedly connected to the top of the mounting frame (3). A driving gear (502) that meshes with the driven gear (5) is fixed on the output shaft of the driving component (501). The driving component (501) is a servo motor or a stepper motor with a reducer.

4. The mode-switching intelligent electric wheelchair for toilet assistance according to claim 1, characterized in that: The functional accessories include a cushioned seat (6) for mobile mode, a toilet seat (601) with a central opening for urination, and a shower seat (602) with drainage holes. The cushioned seat (6), the toilet seat (601), and the shower seat (602) are detachably connected to the mounting base plate (301) via quick-release pins (603). Each mounting base plate (301) has a positioning hole (604) at its top, and the bottom of the cushioned seat (6), the toilet seat (601), and the shower seat (602) are fixedly connected with positioning posts that mate with the positioning holes (604).

5. A mode-switching smart electric wheelchair for toilet assistance according to claim 1, characterized in that: The translation structure includes a lead screw, a guide rod, and a stepper motor that drives the lead screw, all disposed in the support plate (2). The sliding plate (201) is screwed to the lead screw through a threaded hole and slidably connected to the guide rod through a linear bearing.

6. A mode-switching smart electric wheelchair for toileting assistance according to claim 1, characterized in that: The lifting structure (202) is one of a scissor lifting frame, a screw lifting mechanism or a hydraulic lifting cylinder, and its driving source is a servo motor. The surface of the electric wheelchair body (1) is symmetrically fixedly connected with folding auxiliary support pads (7).

7. A mode-switching smart electric wheelchair for toileting assistance according to claim 1, characterized in that: The inner cavity of the electric wheelchair body (1) is hinged with a mounting plate (8), a manual crank (801) is fixed on the mounting plate (8), and a control panel (802) is rotatably connected inside the mounting plate (8). The control panel (802) integrates a touch screen or physical button for switching control modes.

8. A mode-switching smart electric wheelchair for toilet assistance according to claim 1, characterized in that: A rechargeable lithium battery pack (9) is provided at the bottom of the support plate (2), and an environmental sensing sensor group (901) is provided on the electric wheelchair body (1). The environmental sensing sensor group (901) includes at least one of an infrared sensor, an ultrasonic sensor, and a camera.

Images