High-bearing-capacity driving wheel mechanism at bottom of foot bath robot

Abstract

The utility model discloses a high bearing capacity driving wheel mechanism at the bottom of a foot bath robot, which relates to the technical field of foot bath equipment, and comprises a mounting shell and a wheel body arranged at the bottom of the mounting shell, and a transmission part for driving the wheel body is arranged in the mounting shell; the first synchronizing wheel is connected with the driving mechanism; the second synchronizing wheel and the wheel body are coaxially arranged; the first synchronous wheel and the second synchronous wheel are in transmission connection through a synchronous belt; according to the foot bath robot, the first synchronous wheel and the second synchronous wheel are connected through the synchronous belt, transmission of the first synchronous wheel and the second synchronous wheel is achieved through the synchronous belt, and the driving wheel mechanism at the bottom of the foot bath robot adopts a driving connection mode of the synchronous belt, so that the bearing capacity of the foot bath robot can be effectively improved; the problems that in the prior art, when a foot bath robot faces a foot bath barrel bearing a large amount of water, a common wheel body is prone to deformation, damage and the like in the running process, and normal driving cannot be achieved are effectively solved.

Description

High-load-bearing active wheel mechanism at the bottom of the foot bath robot Technical Field

[0001] This utility model relates to the field of foot bath equipment technology, specifically to a high-load-bearing active wheel mechanism at the bottom of a foot bath robot. Background Technology

[0002] As people place increasing emphasis on health and wellness, foot bath robots, as devices that provide a convenient foot bath experience, are gradually gaining market attention. Traditional foot bath equipment is mostly single-function and inconvenient to move, often requiring manual handling, thus failing to meet users' demands for intelligence and automation. While new foot bath robots have solved some automation issues, they still face challenges in practical use.

[0003] Foot bath robots need to be fully loaded with bath water, which places extremely high demands on the load-bearing capacity of their wheels. Ordinary wheels are prone to deformation and damage when carrying large amounts of water, making stable operation impossible. Furthermore, to meet the need for flexible operation in different ground environments, the wheels must not only have high load-bearing capacity but also good adaptability. Currently available foot bath devices struggle to maintain stable contact with uneven surfaces or inconsistent heights, leading to unstable movement and negatively impacting the user experience. Summary of the Invention

[0004] The purpose of this invention is to provide a high-load-bearing active wheel mechanism at the bottom of a foot bath robot to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides a high-load-bearing active wheel mechanism at the bottom of a foot bath robot, comprising a mounting shell and a wheel body disposed at the bottom of the mounting shell, wherein the mounting shell is provided with a transmission component for driving the wheel body, including;

[0006] The first synchronous pulley is connected to the drive mechanism;

[0007] The second synchronizing pulley is coaxially mounted with the pulley body;

[0008] The first and second synchronous pulleys are connected by a synchronous belt drive.

[0009] Furthermore, the drive mechanism adopts a servo motor drive method.

[0010] Furthermore, the drive mechanism includes a servo motor connected to the first synchronous pulley via a gearbox.

[0011] Furthermore, the wheels are located on both sides of the mounting housing.

[0012] Furthermore, a protective shell is detachably connected to the wheel body.

[0013] Furthermore, a mounting base is connected to the protective shell.

[0014] Furthermore, the mounting housing has a mounting groove for mounting the wheel.

[0015] Furthermore, a sealing plate is detachably connected to the mounting shell, the sealing plate is used to seal the mounting groove, and a servo motor is mounted on the sealing plate via a rotating shaft.

[0016] Furthermore, a retraction spring is provided between the mounting base and the mounting shell.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The first and second synchronous pulleys are connected by a synchronous belt, which enables transmission between them. The synchronous belt drive connection method used in the active wheel mechanism at the bottom of the foot bath robot can effectively improve the load-bearing capacity of the foot bath robot and effectively solve the problem in the existing technology that ordinary wheels are prone to deformation and damage during operation when the foot bath robot faces a foot bath tub with a large amount of water, and cannot be driven normally.

[0019] 2. The foot bath robot achieves efficient power transmission through a transmission structure of servo motors, synchronous wheels, and synchronous belts, ensuring stable wheel rotation and enabling the robot to move smoothly. When encountering uneven ground, the contraction springs can automatically adjust the contact state between the wheels and the ground, effectively preventing the wheels from suspending or slipping, and ensuring that the robot can walk stably on various complex surfaces.

[0020] 3. The detachable connection design between the encapsulation plate and the mounting shell facilitates maintenance of the wheel body and other components within the mounting slot. When maintenance is required, there is no need for a complicated disassembly process; simply opening the encapsulation plate allows for quick access to the internal structure, saving maintenance time and labor costs. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the internal structure of the shell of this utility model;

[0022] Figure 2 is an exploded view of the structure of the shell of this utility model;

[0023] Figure 3 is a schematic diagram of the connection structure between the protective shell and the mounting base in this utility model;

[0024] Figure 4 is a schematic diagram of the connection structure between the first synchronous wheel and the second synchronous wheel in this utility model;

[0025] Figure 5 is a schematic diagram of the connection structure between the servo motor and the gearbox in this utility model;

[0026] Figure 6 is a schematic diagram of the connection structure between the servo motor and the packaging board in this utility model.

[0027] In the diagram: 1. Mounting housing; 2. Wheel body; 3. Servo motor; 4. First synchronous pulley; 5. Second synchronous pulley; 6. Synchronous belt; 7. Protective housing; 8. Mounting base; 9. Retraction spring; 10. Encapsulation plate; 11. Mounting groove; 12. Gearbox; 13. Shaft. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please refer to Figures 1-6. This utility model provides a technical solution: a high-load-bearing active wheel mechanism at the bottom of a foot bath robot, including a mounting shell 1 and a wheel body 2 disposed at the bottom of the mounting shell 1, with transmission components for driving the wheel body 2 provided on both sides of the mounting shell 1;

[0030] It should be noted that: the wheel body 2 is set in correspondence with the transmission component, that is, the number of wheel bodies 2 is the same as the number of transmission components. If there are two sets of wheel bodies 2, then there are also two sets of transmission components, including:

[0031] Servo motors 3 are symmetrically connected inside the mounting housing 1. The drive ends of both servo motors 3 are connected to a reduction gearbox 12, and the drive ends of the reduction gearbox 12 are connected to a first synchronous pulley 4.

[0032] The second synchronous pulley 5 is symmetrically rotatably connected in the mounting housing 1 and is coaxially arranged with the wheel body 2. There is one of each of them. The first synchronous pulley 4 and the second synchronous pulley 5 are both connected by a synchronous belt 6.

[0033] It should be noted that a synchronous belt 6 is used to connect the first synchronous wheel 4 and the second synchronous wheel 5, so that the first synchronous wheel 4 and the second synchronous wheel 5 are synchronously transmitted through the synchronous belt 6. The drive connection method of the synchronous belt 6 used in the active wheel mechanism at the bottom of the foot bath robot can effectively improve the load-bearing capacity of the foot bath robot and effectively solve the problem in the existing technology that when the foot bath robot faces a foot bath tub with a large amount of water, the ordinary wheel body is prone to deformation and damage during operation, and cannot be driven normally.

[0034] It should be noted that the outer surface of the wheel body 2 can be integrally formed with anti-slip texture to increase the friction of the wheel body 2. The wheel body 2 is installed on both sides of the mounting shell 1 and is symmetrically rotated at the bottom of the mounting shell 1.

[0035] In practical implementation, when the foot bath robot receives a movement command, the control system sends a signal to the servo motor 3 inside the mounting shell 1. The servo motor 3 then starts, and the power output by it is first transmitted to the connected reduction gearbox 12. The main function of the reduction gearbox 12 is to reduce the rotational speed and increase the torque. In the application scenario of the foot bath robot, the wheel 2 needs sufficient torque to support the robot's weight and overcome ground friction, while the rotational speed directly output by the servo motor 3 may be too high and the torque insufficient. Through the reduction effect of the reduction gearbox 12, the rotational speed can be adjusted to a suitable range, while increasing the torque to meet the driving requirements of the wheel 2. The power adjusted by the reduction gearbox 12 is transmitted to the first synchronous pulley 4. The first synchronous pulley 4 is connected to the drive end of the reduction gearbox 12 and rotates together with the output shaft of the reduction gearbox 12. Simultaneously, at least two second synchronous pulleys 5, coaxially arranged with the wheel 2, are symmetrically rotatably connected inside the mounting shell 1. Each first synchronous pulley 4 and its corresponding second synchronous pulley 5 are connected by a synchronous belt 6. Since the second synchronous pulley 5 is coaxially arranged with the wheel 2, the rotation of the second synchronous pulley 5 directly drives the wheel 2 to rotate.

[0036] Referring to Figure 2, a protective shell 7 is detachably connected to the wheel body 2, and the wheel body 2 is rotatably connected inside the protective shell 7.

[0037] It should be noted that the protective shell 7 is fixed to the flange at the bottom of the mounting shell 1 by bolts or clips.

[0038] In practice, the protective shell 7 can prevent foreign objects from colliding with or scratching the wheel body 2, avoid wear and deformation on the surface of the wheel body 2, reduce the damage of external forces to the wheel body 2 and transmission components, and extend the service life.

[0039] Referring to Figure 4, a mounting base 8 is connected to the protective shell 7;

[0040] The retraction spring 9 has one end detachably connected to the mounting housing 1 and the other end hooked onto the mounting base 8. The retraction spring 9 is used to provide tension so that the wheel 2 is always in contact with the ground.

[0041] In practice, when the foot bath robot is stationary, the contraction spring 9 is in a pre-stretched state, which applies a pulling force to the mounting seat 8 on the protective shell 7. Since the protective shell 7 is connected to the wheel 2, this pulling force is transmitted to the wheel 2, causing the wheel 2 to be pressed tightly against the ground, ensuring that the wheel 2 is in full contact with the ground;

[0042] During the robot's movement, it may encounter different ground conditions, such as uneven ground, bumps, or depressions. When wheel 2 encounters a bump in the ground, wheel 2 will be subjected to an upward compressive force. At this time, the compression spring 9 will be further stretched, and the tension of the spring will increase to balance the upward force on wheel 2, while still ensuring that wheel 2 is in contact with the ground.

[0043] Referring to Figure 2, the mounting housing 1 has a mounting groove 11 for mounting the wheel body 2.

[0044] In practice, the mounting slot 11 facilitates the installation of the wheel body 2.

[0045] Referring to Figure 2, a sealing plate 10 is detachably connected to the mounting housing 1. The sealing plate 10 is used to seal the mounting groove 11. The sealing plate 10 is connected to the rotating drive wheel mechanism via a rotating shaft 13.

[0046] The power mechanism can rotate along the encapsulation plate 10 by means of the rotating shaft 13, and the drive wheel mechanism is connected to the mounting shell 1 by means of the compression spring 10, so that the drive wheel mechanism can achieve up and down elastic movement during operation.

[0047] It should be noted that the encapsulation board 10 is detachably connected to the mounting shell 1 by screws.

[0048] In practice, the encapsulation plate 10 is detachably connected to the mounting shell 1. When the wheel body 2 or other parts in the mounting groove 11 need to be repaired, the encapsulation plate 10 can be opened directly to quickly access the internal structure without disassembling the complex overall structure. At the same time, the encapsulation plate 10 can effectively block dust, moisture and foreign objects from entering the mounting groove 11, preventing them from damaging the internal components.

[0049] Referring to Figure 4, a battery is installed inside the mounting housing 1, and the battery is electrically connected to the servo motor 3.

[0050] In practice, the battery provided facilitates power supply to the servo motor 3.

[0051] Working Principle: When the foot bath robot receives a movement command, the control system sends a signal to the servo motor 3 inside the mounting shell 1. The servo motor 3 then starts, and the power output from it is first transmitted to the connected reduction gearbox 12. The main function of the reduction gearbox 12 is to reduce the rotational speed and increase the torque. In the application scenario of the foot bath robot, the wheel 2 needs sufficient torque to support the robot's weight and overcome ground friction. However, the direct output speed of the servo motor 3 may be too high and the torque insufficient. Through the reduction action of the reduction gearbox 12, the rotational speed can be adjusted to a suitable range, while increasing the torque to meet the driving requirements of the wheel 2. The power adjusted by the reduction gearbox 12 is transmitted to the first synchronous pulley 4. The first synchronous pulley 4 is connected to the drive end of the reduction gearbox 12 and rotates together with the output shaft of the reduction gearbox 12. Simultaneously, at least two second synchronous pulleys 5, coaxially arranged with the wheel 2, are symmetrically rotatably connected inside the mounting shell 1. Each first synchronous pulley 4 and its corresponding second synchronous pulley 5 are connected by a synchronous belt 6. Since the second synchronous pulley 5 is coaxially arranged with the wheel 2, the rotation of the second synchronous pulley 5 directly drives the wheel 2 to rotate.

[0052] When the foot bath robot is stationary, the contraction spring 9 is in a pre-stretched state, which applies a pulling force to the mounting seat 8 on the protective shell 7. Since the protective shell 7 is connected to the wheel 2, this pulling force is transmitted to the wheel 2, pressing the wheel 2 firmly against the ground and ensuring full contact between the wheel 2 and the ground;

[0053] During the robot's movement, it may encounter different ground conditions, such as uneven ground, bumps, or depressions. When wheel 2 encounters a bump in the ground, wheel 2 will be subjected to an upward compressive force. At this time, the compression spring 9 will be further stretched, and the tension of the spring will increase to balance the upward force on wheel 2, while still ensuring that wheel 2 is in contact with the ground.

Claims

1. A high-load-bearing active wheel mechanism at the bottom of a foot bath robot, comprising a mounting shell (1) and a wheel body (2) disposed at the bottom of the mounting shell (1), characterized in that: The mounting housing (1) is provided with a transmission component for the drive wheel body (2), including: a first synchronous wheel (4) connected to the drive mechanism; a second synchronous wheel (5) coaxially arranged with the wheel body (2); the first synchronous wheel (4) and the second synchronous wheel (5) are synchronously connected by a synchronous belt (6).

2. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 1, characterized in that: The drive mechanism adopts a servo motor (3) drive method.

3. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 2, characterized in that: The servo motor (3) is connected to the first synchronous pulley (4) via a gearbox (12).

4. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 1, characterized in that: The wheel body (2) is disposed on both sides of the mounting shell (1).

5. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 1, characterized in that: A protective shell (7) is detachably connected to the wheel body (2).

6. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 5, characterized in that: The protective shell (7) is connected to a mounting base (8).

7. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 1, characterized in that: The mounting housing (1) has a mounting groove (11) for mounting the wheel body (2).

8. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 7, characterized in that: A sealing plate (10) is detachably connected to the mounting shell (1), and the sealing plate (10) is used to seal the mounting groove (11); a servo motor (3) is rotatably mounted on the sealing plate (10) via a rotating shaft (13).

9. The high-load-bearing drive wheel mechanism at the bottom of the foot bath robot as described in claim 6, characterized in that: A retraction spring (9) is provided between the mounting base (8) and the mounting shell (1).

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