Abdominal wheel with resistance adjustment
By integrating an accelerometer and a Hall sensor into the ab wheel, combined with a control board and a resistance motor, automatic and continuous adjustment of the ab wheel's resistance is achieved, solving the problem of inflexible resistance adjustment in existing ab wheels and improving user experience and exercise results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI YUNMAI TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-03
Smart Images
Figure CN224442040U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fitness equipment, specifically to an ab wheel with adjustable resistance. Background Technology
[0002] Ab wheels are common fitness equipment widely used in people's daily exercise. Currently, ab wheels on the market mainly have the following problems regarding resistance:
[0003] Limited resistance adjustment methods: Some ab wheel products have fixed resistance, making it impossible to flexibly adjust the resistance according to the user's exercise needs at different stages; while adjustable ab wheels mainly adjust the resistance by inserting resistance blocks into the stroke groove or installing resistance blocks in the outer ring groove, which is not flexible or precise enough, and the adjustment range is limited.
[0004] To address the problem that existing ab rollers either have non-adjustable resistance or adjustable resistance with limited adjustment methods, there is an urgent need for a new resistance adjustment solution that can effectively solve these problems. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide an ab wheel with adjustable resistance, which can automatically and continuously adjust the resistance to improve the user experience.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] An ab wheel with adjustable resistance includes an ab wheel body, the ab wheel body comprising: a housing and a rolling shaft, a control main board, a resistance motor, a reducer, an acceleration sensor, and a Hall sensor disposed within the housing;
[0008] The reducer and Hall sensor are mounted on the rolling shaft; the reducer is electrically connected to the resistance motor; the resistance motor, acceleration sensor, and Hall sensor are electrically connected to the control motherboard.
[0009] Optionally, the ab wheel body further includes rollers; the rollers are fixedly mounted on the rolling shaft.
[0010] Optionally, the ab wheel body also includes a power module; the power module is electrically connected to the control motherboard and the reducer respectively.
[0011] Optionally, the power module includes a battery, a charging circuit, a charging port, and a voltage regulator circuit; the charging port, the charging circuit, the battery, the voltage regulator circuit, and the control motherboard are electrically connected in sequence; the battery is also electrically connected to the reducer.
[0012] Optionally, the acceleration sensor is a three-axis accelerometer gyroscope.
[0013] Optionally, the Hall sensor includes Hall sensor A and Hall sensor B; Hall sensor A and Hall sensor B are electrically connected to the control motherboard respectively.
[0014] Optionally, the control motherboard integrates a Bluetooth module and / or a Wi-Fi module.
[0015] Optionally, the ab wheel body also includes a touch control module; the touch control module is fixedly disposed on the upper surface of the housing and electrically connected to the control motherboard.
[0016] Optionally, the resistance motor is a brushless DC motor.
[0017] Optionally, the ab wheel body also includes a support frame; the support frame is provided with a handrail or elbow support on the outside of the housing.
[0018] The beneficial effects of this invention are as follows: By adding a reducer connected to the resistance motor on the rolling shaft, resistance can be provided in the forward direction of the ab wheel when resistance is required in motion scenarios; when the added acceleration sensor and Hall sensor accurately detect that the ab wheel has reached its maximum travel distance, the control board will control the resistance motor to output greater resistance, allowing the user to perceive that the maximum forward travel distance has been reached; when the acceleration sensor and Hall sensor accurately detect that the ab wheel is changing direction, the resistance motor will be controlled to change the direction of resistance output. This achieves real-time adaptive and precise adjustment of the ab wheel's resistance based on the user's movement, providing the user with a continuous and flexible intelligent resistance control method, greatly improving the user experience. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of an ab wheel with adjustable resistance provided in Embodiment 1 of this utility model;
[0020] Figure 2 This is a schematic diagram of the circuit structure of the three-axis accelerometer gyroscope used in Embodiment 2 of this utility model;
[0021] Figure 3 This is a schematic diagram of the circuit structure of the dual Hall effect sensor used in Embodiment 2 of this utility model;
[0022] Figure 4 A schematic diagram of the module structure of an ab wheel with adjustable resistance provided in Embodiment 2 of this utility model;
[0023] Figure 5 This is a schematic diagram of the circuit structure of the brushless DC motor used in Embodiment 2 of this utility model;
[0024] Figure 6 This is a schematic diagram illustrating the working principle of a resistance-adjustable device provided in Embodiment 2 of this utility model.
[0025] Label Explanation:
[0026] 1. Ab wheel body;
[0027] 10. Housing; 11. Roller; 12. Rolling shaft; 13. Control main board; 14. Resistance motor;
[0028] 15. Reducer; 16. Accelerometer; 17. Hall effect sensor;
[0029] 18. Battery; 19. Charging circuit; 20. Charging port; 21. Voltage regulator circuit (LDO);
[0030] 22. Touch module. Detailed Implementation
[0031] To illustrate in detail the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this utility model, the following detailed description is provided in conjunction with the listed specific embodiments and accompanying drawings. The embodiments described herein are merely illustrative of the technical solutions of this utility model and are therefore intended to limit the scope of protection of this utility model.
[0032] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0033] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0034] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.
[0035] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.
[0036] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0037] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0038] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0039] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.
[0040] Embodiment 1 of this utility model is as follows:
[0041] This embodiment provides an ab wheel with adjustable resistance, such as... Figure 1 As shown, the ab wheel body 1 includes: a housing 10, a roller 11, a rolling shaft 12 disposed in the housing 10, a control main board 13, a resistance motor 14, a reducer 15, an acceleration sensor 16, and a Hall sensor 17.
[0042] The reducer 15 and Hall sensor 17 are mounted on the rolling shaft 12 and electrically connected to the resistance motor 14; the resistance motor 14, acceleration sensor 16 and Hall sensor are electrically connected to the control motherboard 13 respectively.
[0043] The roller 11 is fixedly mounted on the rolling shaft 12 and can roll freely. Optionally, there can be one or more rollers; when there is only one roller, it is located in the center of the ab wheel body, and can extend outwards from both ends of the rolling shaft to form grip or elbow support parts; when there are multiple rollers, one roller can be mounted on each end of a rolling shaft, or two or more rollers can be mounted on each end of a rolling shaft, wherein there can be one or more rolling shafts. That is to say, this embodiment is applicable to various roller configuration schemes, and the number and mounting relationship of the rollers and rolling shafts can be diverse.
[0044] The control board is used to control the drive motor and resistance motor in the ab wheel based on user settings and sensor data collected by the acceleration sensor and Hall sensor.
[0045] The resistance motor is used to output directional power to the reducer under the control of the main control board.
[0046] The reducer is used to generate resistance in a corresponding direction on the rolling shaft based on the directional power output by the resistance motor.
[0047] The acceleration sensor, which integrates an accelerometer and a gyroscope, is used to measure the motion state of the ab wheel body. The motion state includes acceleration and angular velocity data, enabling precise monitoring of the ab wheel's positioning and attitude.
[0048] The Hall sensor, also known as a Hall effect sensor, is used to detect the rotational speed and position information of the rolling shaft.
[0049] The working principle of the ab wheel with adjustable resistance provided in this embodiment is as follows:
[0050] When the user pushes the ab wheel forward, the accelerometer detects the forward acceleration of the ab wheel body; simultaneously, the Hall sensor detects the increase in the rotational speed and positional information of the roller shaft. Based on the data from the accelerometer and Hall sensor, the control board determines that the user is driving the ab wheel forward. It then controls the resistance motor to output resistance in the opposite direction to the current rotation of the roller shaft. The resistance value can be a default value or a user-preset value, preferably the latter. This resistance from the resistance motor is applied to the roller shaft through a reducer, creating a backward resistance to the forward movement of the ab wheel. When the ab wheel reaches its maximum forward travel, the control board detects this again through the Hall sensor's feedback on the roller shaft's rotational speed (decreasing) and positional information (approaching constant), as well as the accelerometer's feedback on the decreasing acceleration. At this point, the control board controls the resistance motor to output a resistance that remains in the same direction but is greater than before, allowing the user to perceive that the forward travel has been reached. When the user begins to move backward, the control board detects that the ab wheel is pulling backward by the rotational speed (increasing) and position information (starting to change) of the roller shaft transmitted by the Hall sensor, as well as the acceleration data (increasing) transmitted by the accelerometer. At this time, the control board will control the resistance motor to output a resistance opposite to the current rotation direction of the roller shaft, which is also applied to the roller shaft through the reducer. When the ab wheel reaches its closest backward stroke, the control board will detect this by the data transmitted by the Hall sensor and the accelerometer, and the cumulative stroke count will increment by 1, and this cycle will repeat.
[0051] The ab wheel provided in this embodiment can detect the motion posture and position of the ab wheel through an accelerometer and a Hall sensor, so as to provide the user with an opposite resistance in the direction of the ab wheel's movement through a reducer connected to the resistance motor; thus realizing adaptive and continuous automatic adjustment of the ab wheel's resistance, greatly optimizing the user experience.
[0052] Embodiment two of this utility model is as follows:
[0053] This embodiment further expands upon Embodiment 1, refining and improving the structure of the ab wheel.
[0054] The ab wheel in this embodiment uses an acceleration sensor as follows: Figure 2 The diagram shows a three-axis accelerometer gyroscope. A three-axis accelerometer gyroscope can simultaneously measure acceleration in three axes (e.g., forward / backward, left / right, up / down) and angular velocity in three axes (e.g., rotational speed around the three axes), achieving 6-axis directional sensing. This dual measurement capability allows for a more comprehensive and accurate perception of the ab wheel's motion state, helping to more precisely control the direction and magnitude of the resistance output by the ab wheel.
[0055] The ab wheel in this embodiment uses a Hall sensor as follows: Figure 3 The dual Hall effect sensor shown specifically includes Hall sensor A and Hall sensor B; Hall sensor A and Hall sensor B are electrically connected to the control motherboard.
[0056] The ab wheel in this embodiment uses a dual Hall effect combination, which can independently detect changes in the magnetic field, more accurately detect the actual angle and position changes of the ab wheel body, improve measurement accuracy and enhance system stability.
[0057] The ab wheel in this embodiment integrates a Bluetooth module and / or a Wi-Fi module on its control board. Therefore, the ab wheel in this embodiment also has Bluetooth and / or Wi-Fi functionality, allowing it to wirelessly connect with smart devices, such as mobile phones, to remotely adjust its parameters. For example, users can use a specially customized app on their mobile phones to set the resistance level and the number of repetitions on the ab wheel.
[0058] Preferably, a pre-written intelligent exercise program can be written on the control motherboard. After the control motherboard executes the intelligent exercise program, the ab wheel can calculate and obtain a suitable resistance value based on the imported user exercise data, and automatically adjust the output resistance during exercise to provide users with personalized exercise plans, improve exercise effectiveness and safety.
[0059] The ab wheel in this embodiment includes a power module in its ab wheel body; the power module is electrically connected to the control motherboard and the reducer respectively.
[0060] In some specific embodiments, the power module is a charging power supply, such as... Figure 4 As shown, the system specifically includes a battery 18, a charging circuit 19, a charging port 20, and a voltage regulator circuit LDO 21; the charging port 20, the charging circuit 19, the battery 18, the voltage regulator circuit LDO 21, and the control motherboard 13 are electrically connected in sequence; the battery 18 is also electrically connected to the reducer 15. Preferably, the charging port 20 is a Type-C interface.
[0061] Here, the power module can obtain charging power through its charging port, and then charge the battery through the charging circuit; the battery can provide a stable 5V operating voltage to the control motherboard through the voltage regulator circuit LDO, and at the same time, it can also supply power to the reducer and the resistance motor.
[0062] The ab wheel in this embodiment has ab wheel body, as shown in the example. Figure 4 As shown, it also includes a touch module 22; the touch module is fixedly mounted on the upper surface of the housing and electrically connected to the control motherboard.
[0063] The touch module on the ab wheel not only provides users with an intuitive count of exercise repetitions, but also allows for convenient control of relevant parameters, such as flexible adjustment of resistance values.
[0064] The ab wheel in this embodiment, such as Figure 1 As shown, the ab wheel also includes a support frame; the support frame has handles or elbow supports on the outside of the ab wheel housing. The handles and elbow supports are two common support methods for ab wheels, used to support the user's body weight and drive the ab wheel when exercising.
[0065] Preferably, both the armrests and the elbow supports are ergonomically designed. The armrests conform to the hand grip curve, stabilizing the hand position, preventing movement deviation, and reducing slippage; the elbow supports are designed to conform to the curve of the human arm, reducing user arm compensation, allowing for better core focus, and enhancing safety. Preferably, both the armrests and the elbow supports support rotation adjustment, allowing users to choose different exercise postures, further enriching the usage and training effects of the ab wheel.
[0066] In this embodiment of the ab wheel, the resistance motor is as follows: Figure 5 The DC brushless motor shown features high efficiency, long lifespan, and precise control over the applied resistance.
[0067] The ab wheel provided in this embodiment works as follows: Figure 6 As shown, when the user pushes forward, the three-axis accelerometer gyroscope detects forward acceleration data. The control board collects the acceleration data and, combined with the triggering of Hall sensor A, determines that the user is moving forward. Based on the pre-set resistance data, the control board controls the resistance motor to output reverse force. This force applies resistance to the forward-moving ab wheel through a transmission structure such as a reducer. When the maximum forward travel is reached, Hall sensor B is triggered, and at the same time, the acceleration detected by the three-axis accelerometer decreases. The resistance motor outputs a greater resistance through the reducer, allowing the user to perceive that the forward travel has been reached.
[0068] As the user moves further back, the three-axis accelerometer gyroscope and Hall sensor are triggered. The control board senses the ab wheel pulling back and controls the resistance motor to output a force in the opposite direction to the previously output force. This force is then applied to the rolling shaft through a reducer, providing forward resistance to the ab wheel. When the Hall sensor A is triggered a second time during the stroke, the count displayed on the touch module's panel increments by 1. This process repeats continuously. Additionally, the control board includes Bluetooth functionality, allowing connection to a mobile app. Users can set resistance levels, number of repetitions, and synchronized voice control through the app.
[0069] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A resistance-adjustable abdominal wheel comprising an abdominal wheel body, characterized in that, The ab wheel body includes: a housing and a rolling shaft, a control main board, a resistance motor, a reducer, an acceleration sensor, and a Hall sensor disposed within the housing; The reducer and Hall sensor are mounted on the rolling shaft; the reducer is electrically connected to the resistance motor; the resistance motor, acceleration sensor, and Hall sensor are electrically connected to the control motherboard.
2. The ab wheel with adjustable resistance as described in claim 1, characterized in that, The ab wheel body also includes rollers; the rollers are fixedly mounted on the rolling shaft.
3. A resistance adjustable abdominal roller as claimed in claim 1, characterized in that, The ab wheel body also includes a power module; the power module is electrically connected to the control motherboard and the reducer respectively.
4. A resistance adjustable abdominal roller as claimed in claim 3, characterized in that, The power module includes a battery, a charging circuit, a charging port, and a voltage regulator circuit; the charging port, the charging circuit, the battery, the voltage regulator circuit, and the control motherboard are electrically connected in sequence; the battery is also electrically connected to the reducer.
5. The resistance adjustable abdominal roller as claimed in claim 1, wherein, The accelerometer sensor is a three-axis accelerometer gyroscope.
6. An ab wheel with adjustable resistance as described in claim 1, characterized in that, The Hall sensor includes Hall sensor A and Hall sensor B; Hall sensor A and Hall sensor B are electrically connected to the control motherboard respectively.
7. A resistance adjustable abdominal roller as claimed in claim 1, wherein, The control motherboard integrates a Bluetooth module and / or a Wi-Fi module.
8. A resistance adjustable abdominal roller as claimed in claim 1, wherein, The ab wheel body also includes a touch module; the touch module is fixedly mounted on the upper surface of the housing and electrically connected to the control motherboard.
9. A resistance adjustable abdominal roller as claimed in claim 1, wherein, The resistance motor is a DC brushless motor.
10. The resistance adjustable abdominal roller as claimed in claim 1, wherein, The ab wheel body also includes a support frame; the support frame is provided with a handrail or elbow support on the outside of the housing.