A tracked powered assistive device

Abstract

The utility model relates to the field of sports equipment manufacturing technology especially a tracked power assisting equipment, including pressure body, pedal and power drive system. Power drive system takes pressure body as the installation foundation, and pedal is fixed to pressure body for user to tread. Power drive system includes motor and walking mechanism. Motor is integrated in the back active track wheel, and is directly connected with power, and is used as the core power source to output assisting power. Walking mechanism is composed of back active track wheel, middle driven track wheel, front driven track wheel and track. In this way, on the one hand, the ground contact area is greatly increased through the track, which can avoid sinking and slipping on uneven, soft or muddy road surface. On the other hand, the flexible buffer characteristics of the track cooperate with the back active track wheel, the middle driven track wheel and the front driven track wheel to support, which can effectively reduce the bumping, improve the comfort and reduce the risk of falling.

Description

Technical Field

[0001] This utility model relates to the field of sports equipment manufacturing technology, and in particular to a tracked power-assisted equipment. Background Technology

[0002] Most commercially available power-assisted equipment uses wheeled walking mechanisms. While these mechanisms offer flexibility and low energy consumption on flat surfaces, their adaptability to complex road conditions remains significantly insufficient. Specifically: 1) Existing walking mechanisms typically consist of driving and driven rollers. Furthermore, these rollers often employ rigid or semi-rigid designs, resulting in a small contact area with the ground. When the equipment travels on uneven surfaces, soft grass, or muddy sections, the wheels are prone to getting stuck in depressions or slipping, resulting in a significant reduction in power transmission efficiency and even preventing normal movement. Furthermore, due to the lack of effective cushioning and grounding adjustment mechanisms, the power-assisted equipment experiences noticeable bumps during travel, which not only affects the user's riding comfort but may also increase the risk of falls due to insufficient grounding stability. 2) From the perspective of power drive system design, most power-assisted equipment uses a separate layout for the motor and the walking mechanism. That is, the power output of the motor needs to be transmitted to the walking wheels through multiple intermediate transmission components such as gear sets and chains. As a result, there is not only significant power loss, making it difficult for the motor to fully utilize its efficiency, but also the presence of intermediate transmission structures increases the overall size and weight of the equipment, which is detrimental to the portability and operational flexibility of the equipment.

[0003] In summary, technical personnel are urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a tracked power-assisted equipment, which aims to solve the problems of wheeled walking mechanisms in existing designs that are prone to slipping in complex road conditions, lack of cushioning leading to bumps and safety risks, and the large power loss, large equipment size and weight, and poor portability caused by the separate layout of the motor and walking mechanism.

[0005] This utility model relates to a tracked power-assisted device, including a pressure-bearing body, a pedal, and a power drive system. The power drive system is mounted on the pressure-bearing body. The pedal, as a support component directly stepped on by the user, is fixed to the pressure-bearing body. The power drive system includes a motor and a traveling mechanism. The traveling mechanism includes a rear active track wheel, a middle driven track wheel, a front driven track wheel, and tracks. The rear active track wheel, the middle driven track wheel, and the front driven track wheel are all mounted on the pressure-bearing body and cooperate to achieve track winding. The motor, as the core power source, outputs assist kinetic energy and is integrated in the rear active track wheel, forming a direct power connection with it.

[0006] As a further improvement to the technical solution disclosed in this utility model, the rear active track wheel is assembled in the rear end region of the pressure-bearing body; the middle driven track wheel is installed in the middle region of the pressure-bearing body and is arranged in front and behind the rear active track wheel along the direction of travel; the front driven track wheel is installed in the front end region of the pressure-bearing body, and its axis is parallel to the axis of the rear active track wheel and the middle driven track wheel.

[0007] As a further improvement to the technical solution disclosed in this utility model, the track is preferably made of a highly elastic and wear-resistant material, and its outer surface is provided with anti-slip raised texture.

[0008] As a further improvement to the technical solution disclosed in this utility model, the number of tracks is one, arranged in the middle of the bottom of the pressure body; in the middle region, the rear active track wheel, the middle driven track wheel, and the front driven track wheel are respectively formed with centrally located rear teeth, centrally located middle teeth, and centrally located front teeth adapted to the tracks; or the number of tracks is two, namely a left track and a right track, symmetrically arranged on the left and right sides of the bottom of the pressure body along the direction of travel; in the left region, the rear active track wheel, the middle driven track wheel, and the front driven track wheel are respectively formed with left rear teeth, left middle teeth, and left front teeth adapted to the left track; in the right region, the rear active track wheel, the middle driven track wheel, and the front driven track wheel are respectively formed with right rear teeth, right middle teeth, and right front teeth adapted to the right track.

[0009] As a further improvement of the technical solution disclosed in this utility model, the pressure-bearing body is a split structure, including a front pressure-bearing sub-body, a rear pressure-bearing sub-body, and a hinge assembly; the front pressure-bearing sub-body and the rear pressure-bearing sub-body cooperate to jointly bear the pedal, and the two are rotatably connected by the hinge assembly; the axis of the hinge assembly is set in the horizontal direction and is perpendicular to the direction of travel.

[0010] As a further improvement to the technical solution disclosed in this utility model, a pressure sensor is embedded on the surface of the pedal; the power drive system also includes a controller and a speed adjustment module; the pressure sensor is used to detect the user's pedal pressure signal and transmit it to the controller, the controller adjusts the motor output power through the speed adjustment module, and when the pedal pressure is greater than a preset threshold, the motor output power is increased, and when the pedal pressure is less than or equal to the preset threshold, the motor output power is reduced.

[0011] In practical applications, the tracked power-assisted equipment disclosed in this utility model can achieve at least the following beneficial technical effects, specifically: 1) The walking mechanism adopts a design structure in which the rear active track wheel, the middle driven track wheel, and the front driven track wheel work together to wrap around the track. On the one hand, this greatly increases the contact area between the power-assisted equipment and the ground, thus effectively avoiding problems such as getting stuck or slipping on uneven roads, soft grass, or muddy sections. On the other hand, the track itself has good flexible cushioning characteristics, and with the coordinated support of the rear active track wheel, the middle driven track wheel, and the front driven track wheel, the bumps during travel are effectively reduced, which not only improves the user's riding comfort, but also reduces the risk of falling through the stable ground contact effect. 2) The motor is integrated into the rear active track wheel, which greatly shortens the power transmission path. This reduces power loss during transmission, fully utilizes the motor's efficiency, and avoids the increase in size and weight caused by intermediate transmission structures. This is beneficial to improving the portability and operational flexibility of the equipment. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0013] Figure 1 This is a schematic diagram of the paired application state of the first embodiment of the tracked power-assisted equipment disclosed in this utility model.

[0014] Figure 2 This is a three-dimensional schematic diagram from one perspective of the first embodiment of the tracked power-assisted equipment disclosed in this utility model.

[0015] Figure 3 This is a three-dimensional schematic diagram from another perspective of the first embodiment of the tracked power-assisted equipment disclosed in this utility model.

[0016] Figure 4 This is also a three-dimensional schematic diagram from another perspective of the first embodiment of the tracked power-assisted equipment disclosed in this utility model (with the pedals hidden).

[0017] Figure 5 This is also a perspective view of the first embodiment of the tracked power-assisted equipment disclosed in this utility model (with the pressure body and pedals hidden).

[0018] Figure 6 This is a schematic diagram of the paired application state of the second embodiment of the tracked power-assisted equipment disclosed in this utility model.

[0019] Figure 7 This is a perspective view of one embodiment of the tracked power-assisted equipment disclosed in this utility model.

[0020] Figure 8 This is a three-dimensional schematic diagram from another perspective of the second embodiment of the tracked power-assisted equipment disclosed in this utility model.

[0021] Figure 9 This is also a three-dimensional schematic diagram of another perspective of the second embodiment of the tracked power-assisted equipment disclosed in this utility model (with the pedals hidden).

[0022] Figure 10 This is also a perspective view of the second embodiment of the tracked power-assisted equipment disclosed in this utility model (with the pressure body and pedals hidden).

[0023] 1-Pressure-bearing body; 11-Front-mounted pressure-bearing sub-body; 12-Rear-mounted pressure-bearing sub-body; 13-Articulated assembly; 2-Pedal; 3-Power drive system; 31-Traveling mechanism; 311-Rear-positioned active track wheel; 3111-Centered rear-positioned tooth; 3112-Left-positioned rear-positioned tooth; 3113-Right-positioned rear-positioned tooth; 312-Centered driven track wheel; 3121-Centered center-positioned tooth; 3122-Left-positioned center-positioned tooth; 3123-Right-positioned center-positioned tooth; 313-Front-positioned driven track wheel; 3131-Centered front-positioned tooth; 3132-Left-positioned front-positioned tooth; 3133-Right-positioned front-positioned tooth; 314-Centered track; 315-Left-positioned track; 316-Right-positioned track. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to specific embodiments. Figure 1 The diagram shows a pairing application state of the first embodiment of the tracked power-assisted equipment disclosed in this utility model. It can be seen that it is composed of a left-mounted tracked power-assisted equipment and a right-mounted power-assisted device. The two are symmetrical in structure and can correspond to the user's left foot and right foot respectively, forming a walking assistance system that provides coordinated assistance.

[0025] Looking solely at the structure of left-hand tracked power-assisted equipment, such as Figure 2 , Figure 3 As shown, it mainly consists of a pressure-bearing body 1, a pedal 2, and a power drive system 3, which work together to achieve the power-assisted walking function. The power drive system 3 is mounted on the pressure-bearing body 1. The pedal 2, as the support component directly stepped on by the user, is supported by the pressure-bearing body 1. like Figures 3-5As shown, the pressure-bearing body 1 preferably adopts a split structure design, including a front pressure-bearing sub-body 11, a rear pressure-bearing sub-body 12, and a hinge assembly 13. The front pressure-bearing sub-body 11 and the rear pressure-bearing sub-body 12 cooperate to jointly bear the pedal 2, and the two are rotatably connected by the hinge assembly 13. The axis of the hinge assembly 13 is set in the horizontal direction and perpendicular to the direction of travel. In this way, in practical applications, the pressure-bearing body 1 can better adapt to terrain undulations. When the tracked power-assisted equipment travels on uneven roads, the front pressure-bearing sub-body 11 and the rear pressure-bearing sub-body 12 can rotate relative to each other around the hinge axis, further improving the equipment's ground contact and travel stability. The power drive system 3 is the core of the assist function, which includes a motor (not shown in the figure) and a walking mechanism 31 (such as...). Figure 3 (As shown in the diagram). The electric motor, as the core power source, outputs auxiliary kinetic energy and is integrated into the rear active track wheel 311, forming a direct power connection with it, significantly shortening the power transmission path. This effectively reduces power loss during transmission, maximizing the motor's efficiency; it also avoids the increased size and weight associated with traditional transmission structures, improving the equipment's portability and operational flexibility. like Figure 4 As shown, the traveling mechanism 31 includes a rear active track wheel 311, a middle driven track wheel 312, a front driven track wheel 313, and a central track 314. The rear active track wheel 311, the middle driven track wheel 312, and the front driven track wheel 313 are all mounted on the pressure body 1 and work together to achieve the routing of the central track 314. Specifically, the rear active track wheel 311 is mounted in the rear end region of the pressure body 1; the middle driven track wheel 312 is mounted in the middle region of the pressure body 1, using the articulated assembly 13 as a plug-in mounting base, and is arranged in front of and behind the rear active track wheel 311 along the traveling direction; the front driven track wheel 313 is mounted in the front end region of the pressure body 1, and its axis is parallel to the axes of the rear active track wheel 311 and the middle driven track wheel 312, ensuring the smooth transmission of the central track 314. The central track 314 is located in the middle of the bottom of the pressure-bearing body 1. To achieve reliable engagement between the track and the wheel, the rear driving track wheel 311, the middle driven track wheel 312, and the front driven track wheel 313, located in the middle region, are respectively formed with centrally located rear teeth 3111, centrally located middle teeth 3121, and centrally located front teeth 3131 (e.g., ...). Figure 5 As shown in the figure, the tooth meshing structure prevents the central track 314 from slipping and detaching during transmission. It is worth noting that the center track 314 is preferably made of a highly elastic and wear-resistant material, and its outer surface is provided with anti-slip raised textures. The high elasticity of the material gives the track good cushioning performance, the wear resistance extends its service life, and the anti-slip raised textures further enhance the friction between the track and the ground, improving grip during movement. Furthermore, the running gear 31 adopts a design structure in which the rear active track wheel 311, the middle driven track wheel 312, and the front driven track wheel 313 work together to wrap around the center track 314, which greatly increases the contact area between the power-assisted equipment and the ground, thereby effectively avoiding problems such as getting stuck or slipping on uneven roads, soft grass, or muddy sections; combined with the flexible cushioning characteristics of the center track 314 itself and the coordinated support of the rear active track wheel 311, the middle driven track wheel 312, and the front driven track wheel 313, the bumps during movement are effectively reduced, improving user comfort and reducing the risk of falling through a stable ground contact effect. It should also be noted that a pressure sensor is embedded in the surface of pedal 2, and the power drive system 3 also includes a controller and a speed control module (not shown in the figure). The pressure sensor detects the user's pedal pressure signal and transmits it to the controller. The controller adjusts the motor output power through the speed control module. When the pedal pressure is greater than a preset threshold, the motor output power increases; when the pedal pressure is less than or equal to the preset threshold, the motor output power decreases. This intelligent speed control design based on pedal pressure enables the equipment's power output to precisely match the user's travel needs, improving operational convenience and user experience. During operation, the user steps on pedal 2, and the pressure sensor detects the stepping pressure in real time and transmits the signal to the controller. When the user needs to accelerate or travel on complex terrain, the stepping pressure increases, and the controller increases the motor output power through the speed control module. The motor drives the rear active track wheel 311 to rotate, which in turn drives the central track 314 through tooth meshing. The central driven track wheel 312 and the front driven track wheel 313 rotate synchronously with the track, providing sufficient power to the equipment. When the stepping pressure decreases, the motor output power decreases, and the equipment slows down. At the same time, the split-type pressure-bearing body 1 can rotate flexibly according to the terrain, and in conjunction with the cushioning and gripping characteristics of the track, it ensures that the equipment can travel smoothly on various types of surfaces.

[0026] Figures 6-10 The diagram shows a structural schematic of the second embodiment of the tracked power-assisted equipment disclosed in this utility model. It can be seen that the difference between this embodiment and the first embodiment is that the number and arrangement of the tracks are the same. Other components such as the pressure body 1, pedal 2, motor and intelligent control components are the same and will not be described in detail here. Specifically, in the second embodiment, there are two tracks: a left-side track 315 and a right-side track 316. These are symmetrically arranged on the left and right sides of the bottom of the pressure-bearing body 1 along the direction of travel, forming a dual-track drive structure. This further optimizes the force balance of the tracked power-assisted equipment, making the driving force and ground support force on both sides more even during travel. This effectively reduces the risk of yaw caused by excessive force on one track and improves the straight-line stability of the equipment. To achieve precise meshing and reliable transmission between the dual tracks and the wheel body, the tooth structure of the wheel body is designed for compatibility: In the left region of the bearing body 1, the rear driving track wheel 311, the middle driven track wheel 312, and the front driven track wheel 313 are respectively formed with left rear teeth 3112, left middle teeth 3122, and left front teeth 3132, which are compatible with the left track 315; in the right region, the rear driving track wheel 311, the middle driven track wheel 312, and the front driven track wheel 313 are respectively formed with right rear teeth 3113, right middle teeth 3123, and right front teeth 3133, which are compatible with the right track 316 (e.g., ...). Figure 10 As shown in the figure, this ensures that the left track 315 and the right track 316 will not slip, disengage or lag during synchronous transmission, thus ensuring the synchronicity of the movement of the left track 315 and the right track 316. It is worth noting that the left track 315 and the right track 316 are also preferably made of highly elastic and wear-resistant material, and the outer surface is provided with anti-slip raised texture. On this basis, the dual-track structure further amplifies the advantages of tracked travel: on the one hand, the left track 315 and the right track 316 simultaneously contact the ground, which greatly increases the total contact area between the tracked power-assisted equipment and the ground compared to the single-track design. In complex terrains such as soft grass, muddy sections or steep slopes, the total weight of the equipment and the user can be more evenly distributed, effectively reducing ground pressure and avoiding the risk of getting stuck; on the other hand, the symmetrical buffering characteristics of the left track 315 and the right track 316 allow the equipment to absorb the impact through elastic deformation on both sides when crossing obstacles or traveling on uneven surfaces. Combined with the rotational adaptation of the split-type pressure-bearing body 1, this further reduces the feeling of bumps and improves the comfort and stability of travel. During operation, the power transmission and intelligent control logic of the second implementation method is consistent with that of the first implementation method: the motor is integrated into the rear active track wheel 311, and drives the left track 315 and right track 316 to move synchronously through the left rear tooth 3112 and right rear tooth 3113 respectively. The middle driven track wheel 312 and the front driven track wheel 313 provide support and guidance for the left track 315 and right track 316 through corresponding side teeth (including the left middle tooth 3122, the left front tooth 3132, the right middle tooth 3123, and the right front tooth 3133). The pressure sensor on the surface of the pedal 2 detects the pedal pressure in real time, and the controller adjusts the motor output power through the speed control module to achieve a precise match between power and travel requirements. The coordinated transmission of the dual tracks makes the driving force output smoother, and with the symmetrical structural design, it is especially suitable for scenarios with higher requirements for travel stability.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tracked power-assisted device, comprising a pressure-bearing body, a pedal, and a power drive system; the power drive system is mounted on the pressure-bearing body; the pedal serves as a support component for direct user stepping on, and is fixed to the pressure-bearing body; the power drive system includes a motor and a walking mechanism, characterized in that, The walking mechanism includes a rear active track wheel, a middle driven track wheel, a front driven track wheel, and tracks; the rear active track wheel, the middle driven track wheel, and the front driven track wheel are all mounted on the bearing body and cooperate to realize the winding of the tracks; the motor, as the core power source, outputs auxiliary kinetic energy and is integrated in the rear active track wheel, forming a direct power connection with the rear active track wheel.

2. The tracked power-assisted equipment according to claim 1, characterized in that, The rear active track wheel is mounted on the rear end region of the pressure-bearing body; the middle driven track wheel is installed in the middle region of the pressure-bearing body and is arranged in front of and behind the rear active track wheel along the direction of travel; the front driven track wheel is installed in the front end region of the pressure-bearing body, and its axis is parallel to the axes of the rear active track wheel and the middle driven track wheel.

3. The tracked power-assisted equipment according to claim 1, characterized in that, The track is made of a highly elastic and wear-resistant material, and its outer surface is provided with anti-slip raised texture.

4. The tracked power-assisted equipment according to any one of claims 1-3, characterized in that, The number of tracks is 1, and they are arranged in the middle of the bottom of the pressure body; in the middle region, the rear active track wheel, the middle driven track wheel, and the front driven track wheel are respectively formed with centrally located rear teeth, centrally located middle teeth, and centrally located front teeth that are adapted to the tracks; or the number of tracks is 2, namely a left track and a right track, which are symmetrically arranged on the left and right sides of the bottom of the pressure body along the direction of travel; Located in the left region, the rear active track wheel, the middle driven track wheel, and the front driven track wheel are respectively formed with left rear teeth, left middle teeth, and left front teeth that are adapted to the left track; located in the right region, the rear active track wheel, the middle driven track wheel, and the front driven track wheel are respectively formed with right rear teeth, right middle teeth, and right front teeth that are adapted to the right track.

5. The tracked power-assisted equipment according to claim 4, characterized in that, The pressure-bearing body is a split structure, including a front pressure-bearing sub-body, a rear pressure-bearing sub-body, and a hinge assembly; the front pressure-bearing sub-body and the rear pressure-bearing sub-body cooperate to jointly bear the pedal, and the two are rotatably connected by the hinge assembly; the axis of the hinge assembly is set in the horizontal direction and is perpendicular to the direction of travel.

6. The tracked power-assisted equipment according to any one of claims 1-3, characterized in that, A pressure sensor is embedded in the surface of the pedal; the power drive system also includes a controller and a speed control module; the pressure sensor is used to detect the user's pedal pressure signal and transmit it to the controller; the controller adjusts the motor output power through the speed control module; when the pedal pressure is greater than a preset threshold, the motor output power is increased; when the pedal pressure is less than or equal to the preset threshold, the motor output power is reduced.

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