Stroller and seat position adjustment method

Abstract

This application discloses a stroller and a method for adjusting the seat position, belonging to the field of stroller technology. The stroller includes a frame, a seat movably connected to the frame and capable of rotating relative to the frame in two directions, a detection module suitable for collecting seat posture change data, a control module communicatively connected to the detection module, and a drive module communicatively connected to the control module. The control module analyzes the seat posture change data and drives the seat to rotate and reset via the drive module. The corresponding seat position adjustment method includes the steps of seat posture detection, seat posture analysis, and seat posture adjustment. It features an adaptive seat rotation based on road conditions, a stable center of gravity, resistance to forward tilting and tipping over, and high comfort and safety for children.

Description

Technical Field

[0001] This application relates to the field of stroller technology, specifically to children's strollers and methods for adjusting the seat position. Background Technology

[0002] Strollers typically consist of a frame, seat, sunshade, and dust cover, and are specifically designed for use when taking infants and toddlers out. Traditional strollers often have a single integrated seat and frame, meaning the center of gravity cannot automatically adjust. When traversing slopes or uneven surfaces, the sudden change in the center of gravity can cause the stroller to tip forward or overturn, potentially resulting in the child hitting their head and posing a safety hazard. Furthermore, they cannot adapt to road conditions, leading to poor comfort and low safety for children on bumpy roads.

[0003] Furthermore, with the rise of outdoor sports such as camping and off-roading, more and more parents are choosing to use strollers to take their children on outdoor off-roading and camping trips. However, children's bones and body tissues are not yet fully developed, and they can be injured by external shaking and vibration. Some manufacturers have set up shock-absorbing structures for the cabin, but this can only buffer and prevent shocks when the stroller encounters small bumps, improving the child's comfort. It cannot prevent the stroller from tilting forward or tipping over. Therefore, it is necessary to design an intelligent stroller with an adaptive cabin position. Summary of the Invention

[0004] One object of this application is to provide a stroller that ensures the comfort and safety of children while riding.

[0005] Another objective of this application is to provide a method for adjusting the cockpit position, thereby enabling adaptive adjustment of the cockpit position, stabilizing the stroller's center of gravity, and thus improving the comfort and safety of children.

[0006] To achieve one of the objectives of this application, the technical solution adopted in this application is: a children's stroller, including a frame and a seat, wherein the seat is movably disposed relative to the frame, and the seat is capable of rotating relative to the frame around a first pivot and a second pivot, the first pivot and the second pivot intersecting each other; the children's stroller further includes:

[0007] The detection module is adapted to collect attitude change data of the cockpit;

[0008] The control module is communicatively connected to the detection module and is adapted to receive and analyze the attitude change data of the cockpit and generate control signals.

[0009] The drive module is communicatively connected to the control module and is adapted to drive the cockpit to rotate around the first rotating shaft and / or the second rotating shaft according to the control signal.

[0010] As a preferred embodiment, the first rotating shaft is arranged in a horizontal direction, and the second rotating shaft is arranged perpendicular to the first rotating shaft.

[0011] As a preferred embodiment, the vehicle frame includes a first frame and a second frame, the second frame being rotatably mounted on the first frame, the cockpit being rotatably mounted on the second frame, the second frame and the cockpit thereon being rotatable relative to the first frame about a second pivot axis, and the cockpit being rotatable relative to the second frame about the first pivot axis.

[0012] As a preferred embodiment, the detection module is installed on the cockpit, and the attitude change data includes the acceleration and angular velocity of the cockpit.

[0013] As a preferred embodiment, the detection module includes a multi-axis sensor, which is a 6-axis motion sensor, a 9-axis motion sensor, or a 10-axis motion sensor.

[0014] As a preferred embodiment, the control module includes a microprocessor.

[0015] As a preferred embodiment, the drive module includes a first motor device adapted to drive the cockpit to rotate about the first rotating axis, and a second motor device adapted to drive the cockpit to rotate about the second rotating axis, wherein the first motor device and the second motor device each include a motor and a corresponding motor driver.

[0016] To achieve another objective of this application, the technical solution provided by this application is: a cabin position adjustment method, applied to the aforementioned stroller, comprising the following steps:

[0017] Cockpit attitude detection: The detection module collects attitude change data of the cockpit.

[0018] Cockpit attitude analysis: The control module receives the attitude change data of the cockpit and determines whether the position of the cockpit has changed significantly. If so, it analyzes the amount of motion required for the cockpit to reset around the first axis and / or the second axis based on the cockpit attitude change data and generates the corresponding control signal. If not, it returns to the cockpit attitude detection step.

[0019] The cockpit attitude is adjusted by the drive module controlling the cockpit to rotate around the first and / or second axis by a certain angle according to the control signal, so that the cockpit is reset and enters the cockpit attitude detection step again.

[0020] As a preferred embodiment, in the cockpit attitude analysis step, the control module presets a normal position range [-Q, Q] for the cockpit. When the cockpit attitude change data is within this normal position range, the control module determines that the cockpit position has not changed significantly. When the cockpit attitude change data exceeds this normal position range, the control module determines that the cockpit position has changed significantly.

[0021] As a preferred embodiment, in the cockpit attitude analysis step, if the control module determines that the cockpit's position has changed significantly only around the first axis, it sends a control signal to the first motor device, which drives the cockpit to rotate around the first axis to reset. If the control module determines that the cockpit's position has changed significantly only around the second axis, it sends a control signal to the second motor device, which drives the cockpit to rotate around the second axis to reset. If the control module determines that the cockpit's position has changed significantly around both the first and second axes, it sends control signals to both the first and second motor devices simultaneously to drive the cockpit to rotate around both axes to reset.

[0022] Compared with the prior art, the beneficial effects of this application are as follows: (1) Compared with the traditional integrated cockpit and frame stroller, the cockpit and frame of this application are set separately, and the cockpit has the possibility of adjusting its position and not shaking synchronously with the frame; (2) The cockpit position is adjusted in real time by the cooperation of the detection module, control module and drive module. The electric adjustment method has the advantages of fast response and stable adjustment process compared with mechanical shock absorption structure. It can intelligently adapt to different road conditions and ensure the comfort of children; (3) The center of gravity of the stroller and the position of the cockpit are closely related. When the cockpit position is adjusted in real time, the center of gravity of the stroller is naturally adjusted, making the center of gravity of the stroller stable, greatly reducing the chance of the stroller falling over and improving the safety of children riding; (4) When encountering extremely steep, violent bumps or other adverse conditions, the stroller may tilt forward or fall over. In the process of the stroller falling over, the cockpit position is reset in real time, and the center of gravity of the cockpit is always downward. When the cockpit contacts the ground, the child's buttocks contact the ground first, which can greatly reduce the injury compared with the child's head hitting the ground. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a stroller in one embodiment of this application;

[0024] Figure 2 for Figure 1 The diagram shows the structure of a stroller when it tipes over.

[0025] Figure 3This is a schematic diagram of the cabin position adjustment process in one embodiment of this application;

[0026] Figure 4 This is a data recording of the cockpit's attitude during the movement of the trolley, as described in one embodiment of this application.

[0027] In the diagram: 10, chassis; 11, first frame; 111, first body; 112, second body; 12, second frame; 20, cockpit; 30, control module; 40, drive module; 41, first motor unit; 42, second motor unit; 50, detection module; X, first shaft; Y, second shaft. Detailed Implementation

[0028] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0030] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0031] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0032] like Figure 1 , Figure 2 As shown, this application provides a stroller, including a frame 10 and a seat 20. The seat 20 is movably disposed relative to the frame 10 and is adapted to rotate relative to the frame 10 around a first pivot X and a second pivot Y. The first pivot X and the second pivot Y intersect. The stroller also includes:

[0033] The detection module 50 is suitable for collecting attitude change data of the cockpit 20;

[0034] The control module 30 is communicatively connected to the detection module 50 and is adapted to receive and analyze the attitude change data of the cockpit 20 and generate control signals.

[0035] The drive module 40 is communicatively connected to the control module 30 and is adapted to drive the cockpit 20 to rotate around the first axis X and / or the second axis Y according to the control signal.

[0036] Compared with the prior art, this application (1) compared with the traditional integrated stroller with the cabin 20 and frame 10, the cabin 20 and frame 10 of this application are set separately, and the cabin 20 has the possibility of adjusting its position and not shaking synchronously with the frame 10; (2) the position of the cabin 20 is adjusted in real time by the cooperation of the detection module 50, control module 30 and drive module 40. The electric adjustment method has the advantages of fast response and stable adjustment process compared with mechanical shock absorption structure, and can intelligently adapt to different road conditions to ensure the comfort of children; (3) the center of gravity of the stroller and the position of the cabin 20 are closely related. When the position of the cabin 20 is adjusted in real time, the center of gravity of the stroller is naturally adjusted, making the center of gravity of the stroller stable, greatly reducing the chance of the stroller falling over, and improving the safety of children riding; (4) such as Figure 2 As shown, when encountering extremely steep, violent bumps or other adverse conditions, the stroller may tilt forward or tip over. In this application, during the stroller tipping over, the position of the cabin 20 is reset in real time, the center of gravity of the cabin 20 is always downward, and at the moment the cabin 20 contacts the ground, the child's buttocks will contact the ground first, which can greatly reduce the injury compared to the child's head hitting the ground.

[0037] In some embodiments, the first rotating axis X is arranged horizontally, and the second rotating axis Y is arranged perpendicular to the first rotating axis X. This serves two purposes: firstly, it facilitates the connection of the mechanical structure between the cockpit 20 and the frame 10; secondly, using the first rotating axis X and the second rotating axis Y as two dimensions of the coordinate system facilitates data analysis by the control module 30.

[0038] In other embodiments, the orientation of the first rotating shaft X and the second rotating shaft Y can be other orientations, depending on the specific mechanical connection structure between the cockpit 20 and the frame 10.

[0039] In some embodiments, the specific mechanical connection structure between the cockpit 20 and the frame 10 is as follows: the frame 10 includes a first frame 11 and a second frame 12, the second frame 12 is rotatably mounted on the first frame 11, and the cockpit 20 is rotatably mounted on the second frame 12. The second frame 12 and the cockpit 20 thereon can rotate relative to the first frame 11 around a second axis Y, and the cockpit 20 can rotate relative to the second frame 12 around a first axis X. The specific mechanical connection structure between the cockpit 20 and the frame 10 has the advantages of simple structure, easy assembly, low cost of use, and the ability of the cockpit 20 to rotate freely around the first axis X and the second axis Y without being obstructed by the frame 10.

[0040] More specifically, the first frame 11 includes a first frame 111 extending horizontally and a second frame 112 extending vertically. The first frame 111 is equipped with wheels. The second frame 12 is an inclined rectangular frame, with its top end connected to the top of the second frame 112 and its bottom end connected to the front end of the first frame 111. This also means that the second pivot Y is inclined. The cabin 20 is located in the middle of the second frame 12. When the stroller is standing normally, the seat of the cabin 20 faces upward. The center of gravity of the cabin 20 and the center of gravity of the stroller as a whole are located in the middle of the entire frame 10. The stroller can stand stably on flat or bumpy roads.

[0041] In other embodiments, the cockpit 20 and the frame 10 use other mechanical connection structures.

[0042] In some embodiments, to accurately reflect changes in the attitude of the cockpit 20, the detection module 50 is mounted on the cockpit 20. This facilitates the detection of changes in the position of the cockpit 20 and also benefits the subsequent analysis and processing of the cockpit 20's attitude data by the control module 30. It is understandable that if the detection module 50 were mounted on the frame, it could also determine the current road conditions and predict how the cockpit 20 should rotate and reset. However, because the position of the cockpit 20 is controlled by the drive module 40 and is variable, adjusting in real time according to the stroller's status, mounting the detection module 50 on the frame 10 would not directly and accurately reflect the position of the cockpit 20. In dangerous situations such as forward tilting or large bumps, the position of the cockpit 20 could not be correctly adjusted to protect the child.

[0043] The attitude change data includes the acceleration and angular velocity of the cockpit 20.

[0044] In some embodiments, the detection module 50 includes a multi-axis sensor, which may be a 6-axis, 9-axis, or 10-axis motion sensor. Object motion sensors include 3-axis sensors such as accelerometers, gyroscopes, and electronic compasses. Multi-axis sensors are motion sensors formed by combining two or all of the aforementioned three types of 3-axis sensors, which can meet the monitoring accuracy requirements in different usage environments and thus generate more applications. Here, a 6-axis motion sensor refers to a combination of a 3-axis accelerometer and a 3-axis gyroscope; a 9-axis motion sensor refers to a combination of a 3-axis accelerometer, a 3-axis gyroscope, and a 3-axis electronic compass; and a 10-axis motion sensor refers to a combination of a 3-axis accelerometer, a 3-axis gyroscope, a 3-axis electronic compass, and a barometric altimeter.

[0045] In other embodiments, the attitude detection of the cockpit 20 can obviously also be achieved by other sensors.

[0046] In some embodiments, the control module 30 includes a microprocessor.

[0047] In some embodiments, the drive module 40 includes a first motor device 41 adapted to drive the cockpit 20 to rotate about a first rotating axis X, and a second motor device 42 adapted to drive the cockpit 20 to rotate about a second rotating axis Y. The first motor device 41 and the second motor device 42 each include a motor and a corresponding motor driver.

[0048] Furthermore, the first motor device 41 includes two motors disposed on the left and right sides of the cabin 20, so that when the cabin 20 rotates around the first pivot X to adjust the pitch angle, the left and right sides of the cabin 20 are subjected to the same force, and it is beneficial to maintain the left and right symmetry of the overall structure of the trolley and ensure that the center of gravity of the trolley is centered in the left and right direction.

[0049] Furthermore, the second motor device 42 and the control module 30 are located at the front end of the first frame 111 of the frame 10 and are centrally positioned, which facilitates the electrical connection between the second motor device 42 and the control module 30, and also helps to lower the center of gravity of the trolley and ensure the structural symmetry of the left and right sides of the trolley.

[0050] As a supplement, the cockpit position 20 can be adjusted directly by a motor, or indirectly by adding some mechanical devices.

[0051] Furthermore, the trolley is equipped with a power module that supplies power to the detection module 50, control module 30, and drive module 40. Specifically, the power module includes a battery, a power conversion module, and a power detection module 50. The battery provides power, the power conversion module converts the voltage, and the power detection module 50 detects the battery power.

[0052] This application also provides a method for adjusting the position of the seat 20, applicable to the aforementioned stroller, in combination with... Figure 3 , Figure 4 As shown, the cockpit 20 position adjustment method includes the following steps:

[0053] Cockpit 20 attitude detection: Detection module 50 collects attitude change data of cockpit 20;

[0054] The cockpit 20 attitude analysis: The control module 30 receives the attitude change data of the cockpit 20 and determines whether the position of the cockpit 20 has changed significantly. If so, it analyzes the amount of motion required for the cockpit 20 to reset around the first rotation axis X and / or the second rotation axis Y based on the attitude change data of the cockpit 20 and generates the corresponding control signal. If not, it returns to the cockpit 20 attitude detection step.

[0055] The cockpit 20 attitude is adjusted. The drive module 40 controls the cockpit 20 to rotate around the first axis X and / or the second axis Y by a certain angle according to the control signal, so that the cockpit 20 is reset and enters the cockpit 20 attitude detection step again.

[0056] It can adaptively adjust the position of the cabin 20 according to road conditions, improve the stability of the stroller's center of gravity, ensure that the cabin 20 is always facing upward to avoid children's heads hitting the ground, and improve the comfort and safety of children riding.

[0057] In some embodiments, during the cockpit 20 attitude analysis step, the control module 30 presets a normal position range [-Q, Q] for the cockpit 20. When the attitude change data of the cockpit 20 is within the normal position range, the control module 30 determines that the position of the cockpit 20 has not changed significantly. When the attitude change data of the cockpit 20 exceeds the normal position range, the control module 30 determines that the position of the cockpit 20 has changed significantly. Figure 3 The diagram shows a flowchart of the cockpit 20 position adjustment process in one embodiment of this application. After each module is powered on, data initialization is performed. As the trolley starts moving, the cockpit 20 attitude detection step is performed. When the cockpit 20 attitude data read by the control module 30, i.e., the value indicated by the vertical axis in the figure, is within the range of [-Q, Q], it is considered normal fluctuation, corresponding to area A in the figure. At this time, the drive module 40 can drive the cockpit 20 to reset, or not work to save energy. When pushed on a bumpy road, the position of the cockpit 20 changes greatly, exceeding the normal position range of [-Q, Q], as shown in areas B and D. The control module 30 generates a control signal by comparing and analyzing the current cockpit 20 attitude data with the preset normal position range, and automatically adjusts the position of the cockpit 20 through the drive module 40 so that the position of the cockpit 20 is always within the range of [-Q, Q], as shown in area C in the figure.

[0058] In some embodiments, during the cockpit 20 attitude analysis step, if the control module 30 determines that the position of the cockpit 20 has changed significantly only around the first axis X, it sends a control signal to the first motor device 41, which drives the cockpit 20 to rotate around the first axis X to reset. If the control module 30 determines that the position of the cockpit 20 has changed significantly only around the second axis Y, it sends a control signal to the second motor device 42, which drives the cockpit 20 to rotate around the second axis Y to reset. If the control module 30 determines that the position of the cockpit 20 has changed significantly around both the first axis X and the second axis Y, it sends control signals to both the first motor device 41 and the second motor device 42 simultaneously to drive the cockpit 20 to rotate around both the first axis X and the second axis Y to reset. It is understood that the first motor device 41 and the second motor device 42 are relatively independent, which reduces the data processing and analysis difficulty for the control module 30.

[0059] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A stroller, comprising a frame and a seat, characterized in that, The seat is movably disposed relative to the frame, and the seat is capable of rotating around a first pivot and a second pivot relative to the frame. The first pivot and the second pivot intersect. The stroller also includes: The detection module is adapted to collect attitude change data of the cockpit; The control module is communicatively connected to the detection module and is adapted to receive and analyze the attitude change data of the cockpit and generate control signals. The first rotating shaft is set horizontally, and the second rotating shaft is set at an angle. The vehicle frame includes a first frame and a second frame. The first frame includes a first frame extending horizontally and a second frame extending vertically. The second frame is an angled frame, with its top end connected to the top of the second frame and its bottom end connected to the front end of the first frame. The cabin is rotatably mounted on the second frame and can rotate around the first rotating shaft. The second frame is rotatably mounted on the first frame and can rotate around the second rotating shaft. A drive module, communicatively connected to the control module and connected to the cockpit, is adapted to drive the cockpit to rotate around the first rotating shaft and / or the second rotating shaft according to the control signal. The drive module includes a first motor device adapted to drive the cockpit to rotate around the first rotating shaft and a second motor device adapted to drive the cockpit to rotate around the second rotating shaft. The first motor device and the second motor device each include a motor and a corresponding motor driver. The second motor device and the control module are disposed at the front end of the first frame.

2. The stroller as described in claim 1, characterized in that: The detection module is installed on the cockpit, and the attitude change data includes the acceleration and angular velocity of the cockpit.

3. The stroller as described in claim 2, characterized in that: The detection module includes a multi-axis sensor, which is a 6-axis motion sensor, a 9-axis motion sensor, or a 10-axis motion sensor.

4. The stroller as described in any one of claims 1-3, characterized in that: The control module includes a microprocessor.

5. A method for adjusting the seat position, applied to any one of the strollers described in claims 1-4, characterized in that, Including the following steps: Cockpit attitude detection: The detection module collects attitude change data of the cockpit. Cockpit attitude analysis: The control module receives the attitude change data of the cockpit and determines whether the position of the cockpit has changed significantly. If so, it analyzes the amount of motion required for the cockpit to reset around the first axis and / or the second axis based on the cockpit attitude change data and generates the corresponding control signal. If not, it returns to the cockpit attitude detection step. The cockpit attitude is adjusted by the drive module controlling the cockpit to rotate around the first and / or second axis by a certain angle according to the control signal, so that the cockpit is reset and enters the cockpit attitude detection step again. The stroller has a first rotating shaft arranged horizontally and a second rotating shaft arranged at an angle. The stroller frame includes a first frame and a second frame. The first frame includes a first frame extending horizontally and a second frame extending vertically. The second frame is an angled frame. The top of the second frame is connected to the top of the second frame and the bottom is connected to the front of the first frame. The seat is rotatably mounted on the second frame and can rotate around the first rotating shaft. The second frame is rotatably mounted on the first frame and can rotate around the second rotating shaft. The drive module includes a first motor device adapted to drive the seat to rotate around the first rotating shaft and a second motor device adapted to drive the seat to rotate around the second rotating shaft. The first motor device and the second motor device each include a motor and a corresponding motor driver. The second motor device and the control module are located at the front of the first frame.

6. The cockpit position adjustment method as described in claim 5, characterized in that: In the cockpit attitude analysis step, the control module presets a normal position range [-Q, Q] for the cockpit. When the cockpit attitude change data is within this normal position range, the control module determines that the cockpit position has not changed significantly. When the cockpit attitude change data exceeds this normal position range, the control module determines that the cockpit position has changed significantly.

7. The cockpit position adjustment method as described in claim 5, characterized in that: In the cockpit attitude analysis step, if the control module determines that the cockpit's position has changed significantly only around the first axis, it sends a control signal to the first motor device, which drives the cockpit to rotate around the first axis to reset. If the control module determines that the cockpit's position has changed significantly only around the second axis, it sends a control signal to the second motor device, which drives the cockpit to rotate around the second axis to reset. If the control module determines that the cockpit's position has changed significantly around both the first and second axes, it sends control signals to both the first and second motor devices simultaneously to drive the cockpit to rotate around both axes to reset.

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