Educational toy for children education

Abstract

The invention discloses an educational toy for children education. The invention relates to the technical field of programming toys. The main body mechanism 1 serves as a core component, the structural design of the main body mechanism allows independent rotation on the horizontal plane, and the rotational degree of freedom is the basis for driving the mechanical arm mechanism 2 to move. The mechanical arm mechanisms 2 are fixed outside the main body mechanism 1 in an annular array manner, and the end part of each mechanical arm is hinged with a base 3; by introducing the design principle of the parallel robot, the technology of the invention provides a novel and challenging toy model for children. The parallel robot is widely applied to the fields of industrial automation and scientific research due to complex kinematics characteristics and high-precision control requirements. The technology is integrated into the toy for children, so that the children can be in contact with frontier science and technology during playing, and the interests of the children in engineering technology and robotics can be stimulated.

Description

Technical Field

[0001] The invention relates to the technical field of programming toys, and in particular to an educational toy for children. Background Art

[0002] Mechanical arm splicing and programming toys for children's education, such as mBot programmable robots, or CN202022831429.9 discloses a buffer balance mechanical arm for children's education (published on January 24, 2022); CN202120268598.8 discloses a mechanical gripper robot for children's education (published on November 16, 2021)., suitable for children aged 6 to 9 years old for simple splicing. After splicing, the robot can be connected to the robot with Bluetooth, and the robot can be controlled with an iPad or a mobile phone to achieve the teaching purpose of programming instruction design and device splicing.

[0003] Parallel robots have emerged as early as the 1990s. They have the advantages of high rigidity, high speed, strong flexibility and light weight. They are the new generation of industrial robots. Parallel robots and serial robots together constitute an important part of industrial robots. They are most widely used in light industries such as food, medicine, and electronics, and have great advantages in material handling, packaging, and sorting. Parallel robots connect each joint through a connecting rod to form a parallel structure, and the motion path is arc-shaped. Since there is no need to maintain the stability of the chain, parallel robots can achieve higher speeds, larger loads, and higher precision movements.

[0004] The existing robotic arms for children's education are generally traditional six-axis robotic arms, and there are no parallel robot programming toys. This may be related to factors such as the structural complexity, cost and market demand of parallel robots. However, with the continuous advancement of technology and the continuous development of the children's education market, more innovative parallel robot programming toys may appear in the future to meet children's needs for technological exploration and innovation.

[0005] Therefore, the present invention provides an educational toy for children. Summary of the invention

[0006] In view of this, the embodiment of the present invention hopes to provide an educational toy for children to solve or alleviate the technical problems existing in the prior art, that is, how to provide children with a programmable mechanical arm toy in the form of a parallel robot, and at least provide a beneficial choice for this; the technical solution of the present invention is implemented as follows: an educational toy for children, the main body mechanism 1 is used as a core component, and its structural design allows independent rotation on the horizontal plane. This rotational freedom is the basis for driving the movement of the mechanical arm mechanism 2. The mechanical arm mechanism 2 is fixed to the outside of the main body mechanism 1 in a circular array, and each end of the mechanical arm is hinged to a base 3. Such a design constitutes a closed motion chain system. In this system, the main body mechanism 1 drives each mechanical arm mechanism 2 in turn through its rotational freedom, and then controls the base 3 to achieve fine adjustment of the universal angle. In addition, a programmable controller 4 is mounted on the outside of the main body mechanism 1, which is not only responsible for storing logic instructions, but also can accurately control the movement of the mechanical arm according to the programming instructions. The base 3 is equipped with a position sensor for real-time feedback of the current position and posture of the base to enhance the controllability and accuracy of the system.

[0007] In one embodiment, in the main body mechanism 1, the trunk truss assembly 101 constitutes the core structure of the toy, which provides a stable support and a mechanism for generating rotational freedom. The three protrusion truss assemblies 102 are evenly mounted on the outside of the trunk truss assembly 101 in a circular array. This design is not only beautiful, but also convenient for the installation and matching of the mechanical arm mechanism 2. Each mechanical arm mechanism 2 is correspondingly matched with a protrusion truss assembly 102, and is connected by a precise hinge structure, which ensures the stability and flexibility of the mechanical arm during movement.

[0008] In one embodiment, the main body mechanism 1 has a built-in servo drive assembly 103 for generating rotational freedom. The servo drive assembly 103 is the power source of the entire toy, and it is responsible for driving the mechanical arm mechanism 2 to perform various movements. Specifically, the servo drive assembly 103 includes a servo motor 1031 and a crank body 1032. The servo motor 1031 is fixedly mounted on the protruding truss body assembly 102. This design ensures the stability and reliability of the motor when it is working. The output shaft of the servo motor 1031 is connected to the crank body 1032. When the motor is started, the output shaft rotates, driving the crank body 1032 to rotate together. The rotational motion of the crank body 1032 is further converted into the motion of the mechanical arm mechanism 2, thereby achieving precise control of the mechanical arm.

[0009] In one embodiment, the main body mechanism 1 further includes a connecting truss assembly 104, which plays a key connecting role in the entire mechanical system. One end of the connecting truss assembly 104 is connected to the crank body 1032 through a precise hinge structure, and the other end is also connected to the robot arm mechanism 2 through a hinge structure. This design ensures that the rotational motion of the servo motor 1031 can be efficiently transmitted to the robot arm mechanism 2. At the same time, the hinge design of the connecting truss assembly 104 also provides the necessary flexibility, allowing the robot arm mechanism 2 to move freely in multiple directions.

[0010] In one embodiment, the robot arm mechanism 2 is designed to consist of two parts: a first arm truss body component 201 and a second arm truss body component 202. The two parts are connected together through a precise matching structure to form a robot arm with adjustable total length. The total length of the robot arm can be adjusted in steps (the first arm truss body component 201 and the second arm truss body component 202 are equivalent to a telescopic rod); children can change the total length of the robot arm by adjusting these mechanisms, so as to observe the motion posture and trajectory of the parallel robot under different length variables.

[0011] In one embodiment, the trunk truss assembly 101, the protruding part truss assembly 102, the connecting part truss assembly 104, and the mechanical arm mechanism 2 are not integrally formed parts, but are formed by connecting and splicing multiple entities 5 in a detachable manner. A series of holes 501 are arranged in an array on the outside of each entity 5, and the design of these holes 501 allows the entities 5 to be fixedly connected by pins 502. During the assembly process, children only need to insert the pins 502 into the corresponding holes 501 to easily connect the entities 5 together to form a complete mechanical structure.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Innovative design of parallel robot: By introducing the design principle of parallel robots, the technology of the present invention provides children with a novel and challenging toy model. Parallel robots are widely used in industrial automation and scientific research due to their complex kinematic characteristics and high-precision control requirements. Integrating this technology into children's toys can not only allow children to be exposed to cutting-edge technology while playing, but also stimulate their interest in engineering technology and robotics.

[0014] 2. Modular assembly and disassembly: The modular design proposed by the present invention allows the various parts of the toy to be flexibly combined and disassembled. This design not only reduces the manufacturing cost and transportation difficulty of the toy, but also greatly improves the playability and scalability of the toy. Children can freely combine and disassemble the various parts according to their imagination and creativity to create different mechanical structures and movement patterns, thereby cultivating their innovative thinking and problem-solving abilities.

[0015] 3. Precise programming control: Through the combination of servo motors and programming instructions, the technology of the present invention realizes precise control of the robot arm. Children can control the movement trajectory, speed and posture of the robot arm through programming. This programming control method not only improves the interactivity of the toy, but also allows children to learn programming knowledge and the control principle of parallel robots during the play process. This is of great significance for cultivating children's logical thinking ability and scientific and technological literacy.

[0016] 4. Step-by-step adjustment function: The total length of the robot arm can be adjusted in steps by adjusting the relative position or length between the components. This design allows children to observe the motion posture and trajectory of the parallel robot under different length variables, so as to deeply understand the working principle and kinematic characteristics of the parallel robot. This intuitive observation and experience helps children to establish a deep understanding of the kinematic characteristics of the parallel robot and stimulate their spirit of exploration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional schematic diagram of the present invention in a splicing completed state;

[0019] Figure 2 It is a schematic diagram of a top view of the present invention in a splicing completed state;

[0020] Figure 3 It is a three-dimensional schematic diagram of the main mechanism of the present invention;

[0021] Figure 4 It is a three-dimensional schematic diagram of the mechanical arm mechanism of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the entity of the present invention.

[0023] Figure numerals: 1. Main body; 101. Trunk truss body assembly; 102. Protrusion truss body assembly; 103. Servo drive assembly; 1031. Servo motor; 1032. Crank body; 104. Connecting part truss body assembly; 2. Robotic arm mechanism; 201. First arm truss body assembly; 202. Second arm truss body assembly; 3. Base; 4. Controller; 5. Entity; 501. Hole body; 502. Pin. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below;

[0025] Example: In the prior art, the existing robotic arms for children's education are generally traditional six-axis robotic arms, and there are no parallel robot programming toys. This may be related to factors such as the structural complexity, cost and market demand of parallel robots. However, with the continuous advancement of technology and the continuous development of the children's education market, more innovative parallel robot programming toys may appear in the future to meet children's needs for technological exploration and innovation; for this purpose, please refer to Figure 1-5 , this specific implementation will provide relevant technical solutions to solve the above technical problems:

[0026] An educational toy for children, comprising a main body mechanism 1 and at least three sets of mechanical arm mechanisms 2 arranged in a circular array outside the main body mechanism 1;

[0027] The end of the mechanical arm mechanism 2 is hinged with a base 3, and the main body mechanism 1 to the mechanical arm mechanism 2, and the mechanical arm mechanism 2 to the base 3 form a closed kinematic chain system;

[0028] The main body mechanism 1 can generate independent rotational degrees of freedom to drive the mechanical arm mechanism 2 to perform movement; when the main body mechanism 1 contacts the ground, the sequential generation of multiple rotational degrees of freedom can control the base 3 to perform universal angle adjustment;

[0029] The main body 1 is externally equipped with a controller 4 that is programmable and stores logic, and the base 3 is equipped with a position sensor.

[0030] The above device is essentially a parallel mechanism or parallel robot. The educational policy is to design programming instructions, splice the device and control the base 3 to perform universal angle adjustment command action development.

[0031] In the scheme: This educational toy for children is designed as a highly interactive and programmable parallel robot model. The main body mechanism 1 is the core component, and its structural design allows independent rotation on the horizontal plane. This rotational freedom is the basis for driving the movement of the robotic arm mechanism 2. The robotic arm mechanism 2 is fixed to the outside of the main body mechanism 1 in a circular array, and each end of the robotic arm is hinged with a base 3. This design constitutes a closed motion chain system. In this system, the main body mechanism 1 drives each robotic arm mechanism 2 in turn through its rotational freedom, and then controls the base 3 to achieve fine adjustment of the universal angle. In addition, a programmable controller 4 is installed on the outside of the main body mechanism 1, which is not only responsible for storing logical instructions, but also can accurately control the movement of the robotic arm according to the programming instructions. The base 3 is equipped with a position sensor for real-time feedback of the current position and posture of the base, enhancing the controllability and accuracy of the system.

[0032] Specifically: The design principle of this toy is based on parallel robot technology, in which the main mechanism 1 serves as the power source and control center, and transmits power to each mechanical arm mechanism 2 through its built-in rotational freedom generation mechanism. These mechanical arms are connected to the base 3 through a precise hinge structure, forming a multi-degree-of-freedom, highly flexible parallel mechanism. When the main mechanism 1 contacts the ground and activates the rotational freedom, each mechanical arm mechanism 2 works together under the drive of the main mechanism, and converts the rotational motion of the main body into universal angle adjustment of the base 3 through complex kinematic algorithms. The controller 4, as the "brain" of the entire system, accurately controls the movement of the mechanical arm through programming instructions, and realizes closed-loop control through feedback from the position sensor to ensure the accuracy and stability of the movement.

[0033] It is understandable that in the technical solution provided in this embodiment: through the design of programming instructions, children can learn basic programming logic and algorithmic thinking, and at the same time, through hand-assembling and assembling toys, they can also have a deep understanding of the working principle and mechanical structure of the parallel robot. In the process of controlling the base 3 to perform universal angle adjustment, children can intuitively observe the coordinated movement and precise control of the robot arm, thereby cultivating an intuitive understanding of spatial position and kinematic concepts.

[0034] In some specific embodiments of this application, please refer to Figures 1 to 3 : The main body mechanism 1 includes a trunk truss body component 101 and three protrusion truss body components 102 carried by its outer annular array;

[0035] The robot arm mechanism 2 corresponds to and cooperates with the protruding truss body component 102 .

[0036] In the scheme: In the main body mechanism 1, the trunk truss body assembly 101 constitutes the core structure of the toy, which provides a stable support and a mechanism for generating rotational freedom. The three protrusion truss body assemblies 102 are evenly mounted on the outside of the trunk truss body assembly 101 in a circular array. This design is not only beautiful, but also convenient for the installation and matching of the mechanical arm mechanism 2. Each mechanical arm mechanism 2 is correspondingly matched with a protrusion truss body assembly 102, and is connected through a precise hinge structure to ensure the stability and flexibility of the mechanical arm during movement.

[0037] Specifically: The design principle is mainly based on the structural characteristics of the parallel robot. Through the ingenious combination of the trunk truss body component 101 and the protrusion truss body component 102, a multi-degree-of-freedom parallel mechanism is formed. The trunk truss body component 101, as the core of the entire system, is responsible for generating and transmitting the rotational degree of freedom, while the protrusion truss body component 102 serves as the support and connection point of the robot arm mechanism 2, ensuring that the robot arm can accurately execute the command action. This design not only improves the stability and durability of the toy, but also makes the movement of the robot arm more flexible and precise.

[0038] It can be understood that in the technical solution provided in this embodiment: through this implementation, the functionality of the toy is greatly improved. Children can not only control the movement of the robot arm mechanism 2 through programming instructions, but also have a deep understanding of the working principle and kinematic characteristics of the parallel robot by observing the movement trajectory of the robot arm on the protruding truss body assembly 102. In addition, the circular array design of the three protruding truss body assemblies 102 also provides children with more possibilities for splicing and assembly, stimulating their creativity and imagination.

[0039] In some specific embodiments of this application, please refer to Figure 3 : The main mechanism 1 includes a servo drive assembly 103 for generating the rotational freedom. The servo drive assembly 103 includes a servo motor 1031 and a crank body 1032 driven to rotate by its output shaft;

[0040] The servo motor 1031 is fixed on the protruding truss body assembly 102 , and the crank body 1032 is used to drive the robotic arm mechanism 2 .

[0041] In the scheme: the main body mechanism 1 has a built-in servo drive assembly 103 for generating rotational freedom. The servo drive assembly 103 is the power source of the entire toy, and it is responsible for driving the mechanical arm mechanism 2 to perform various movements. Specifically, the servo drive assembly 103 includes a servo motor 1031 and a crank body 1032. The servo motor 1031 is fixedly mounted on the protruding truss body assembly 102. This design ensures the stability and reliability of the motor when it is working. The output shaft of the servo motor 1031 is connected to the crank body 1032. When the motor is started, the output shaft rotates, driving the crank body 1032 to rotate together. The rotational motion of the crank body 1032 is further converted into the motion of the mechanical arm mechanism 2, thereby achieving precise control of the mechanical arm.

[0042] Specifically: the servo motor 1031 is a motor that can accurately control the position and speed. Through the internal feedback mechanism, it can adjust the motor speed and direction in real time to ensure that the position and speed of the output shaft are consistent with the preset value. When the servo motor 1031 is started, its output shaft starts to rotate, and this rotational motion is converted into the motion of the robot arm mechanism 2 through the crank body 1032. Due to the precise control characteristics of the servo motor, the motion of the robot arm mechanism 2 can also be precisely controlled, thereby realizing the universal angle adjustment of the base 3.

[0043] It can be understood that in the technical solution provided in this embodiment, the introduction of the servo drive assembly 103 greatly improves the functionality and playability of the toy. Children can control the start, stop and turn of the servo motor through programming instructions, thereby achieving precise control of the mechanical arm mechanism 2. This control method not only improves the interactivity of the toy, but also allows children to learn the control principle and kinematics knowledge of the servo motor during the play process.

[0044] In some specific embodiments of this application, please refer to Figure 3 : The main body mechanism 1 includes a connecting part truss body assembly 104, one end of the connecting part truss body assembly 104 is hinged to the crank body 1032, and the other end is hinged to the robotic arm mechanism 2.

[0045] In the scheme: the main mechanism 1 further includes a connecting truss body component 104, which plays a key connecting role in the entire mechanical system. One end of the connecting truss body component 104 is connected to the crank body 1032 through a precise hinge structure, and the other end is also connected to the robot arm mechanism 2 through a hinge structure. This design ensures that the rotational motion of the servo motor 1031 can be efficiently transmitted to the robot arm mechanism 2. At the same time, the hinge design of the connecting truss body component 104 also provides the necessary flexibility, allowing the robot arm mechanism 2 to move freely in multiple directions.

[0046] Specifically: The design principle is mainly based on the kinematic characteristics of the parallel robot. The motion transmission and conversion between the servo motor 1031 and the robot mechanism 2 is realized through the hinge design of the connecting truss body assembly 104. When the servo motor 1031 is started, its output shaft drives the crank body 1032 to rotate, and this rotational motion is transmitted to the robot mechanism 2 through the connecting truss body assembly 104. Since both ends of the connecting truss body assembly 104 are hinged, it can adapt to the motion requirements of the robot mechanism 2 in different directions, ensuring the flexibility and accuracy of the motion.

[0047] It can be understood that in the technical solution provided in this embodiment: the introduction of the connection truss body assembly 104 not only improves the mechanical complexity and playability of the toy, but also provides children with a deeper learning opportunity. By observing and operating the movement of the robot arm mechanism 2 in different directions, children can more intuitively understand the kinematic characteristics of the parallel robot and the working principle of the articulated structure. At the same time, the articulated design of the connection truss body assembly 104 also provides more possibilities for creative programming and instruction design of the toy, encouraging children to use their imagination to create more interesting movement patterns and instruction actions.

[0048] In some specific embodiments of this application, please refer to Figure 4 : The robotic arm mechanism 2 includes a first arm truss body component 201 and a second arm truss body component 202 cooperating therewith.

[0049] In the scheme: the robot arm mechanism 2 is designed to consist of two parts: a first arm truss body component 201 and a second arm truss body component 202. The two parts are connected together through a precise matching structure to form a robot arm with adjustable total length. The total length of the robot arm can be adjusted in steps (the first arm truss body component 201 and the second arm truss body component 202 are equivalent to a telescopic rod); children can change the total length of the robot arm by adjusting these mechanisms, so as to observe the motion posture and trajectory of the parallel robot under different length variables.

[0050] Specifically: The design principle is mainly based on mechanical adjustment and the kinematic characteristics of the parallel robot. By changing the relative position or length between the first arm truss assembly 201 and the second arm truss assembly 202, the total length of the robot arm can be precisely controlled. This step-by-step adjustment design is not only easy for children to operate and understand, but also can intuitively demonstrate the motion characteristics and posture changes of the parallel robot under different length conditions. At the same time, by adjusting the length of the robot arm, children can learn the impact of different strokes on the motion trajectory of the parallel robot, thereby deeply understanding the working principle of the parallel robot.

[0051] It is understandable that in the technical solution provided in this embodiment: the total length adjustment function of the mechanical arm mechanism 2 greatly enriches the educational value and playability of the toy. During the play process, children can observe how the motion posture and trajectory of the parallel robot change by constantly trying and adjusting the length of the mechanical arm. This intuitive observation and experience helps children to establish a deep understanding of the kinematic characteristics of the parallel robot and stimulate their creativity and spirit of exploration.

[0052] In some specific embodiments of this application, please refer to Figures 1 to 5 : The trunk truss body component 101, the protruding part truss body component 102, the connecting part truss body component 104 and the mechanical arm mechanism 2 are all formed by a plurality of entities 5 connected in a detachable manner to form a corresponding shape;

[0053] The external array of the entities 5 is provided with holes 501 , and each of the entities 5 can be connected to each other by inserting a pin 502 into the corresponding hole 501 to achieve fixed connection.

[0054] In the scheme: the trunk truss assembly 101, the protruding part truss assembly 102, the connecting part truss assembly 104 and the mechanical arm mechanism 2 are not integrally formed parts, but are formed by multiple entities 5 connected in a detachable manner. A series of holes 501 are arranged in an array on the outside of each entity 5, and the design of these holes 501 allows the entities 5 to be fixedly connected by pins 502. During the assembly process, children only need to insert the pins 502 into the corresponding holes 501 to easily connect the entities 5 together to form a complete mechanical structure.

[0055] Specifically: The design principle is mainly based on the concept of modular splicing and detachable connection. By splitting the overall structure into multiple entities 5 and designing a unified hole body 501 and a latch 502 connection method, flexible combination and disassembly between the various components is achieved. This design not only reduces the manufacturing cost and transportation difficulty of the toy, but also greatly improves the playability and educational value of the toy. Children can freely combine and disassemble the various components according to their imagination and creativity, thereby creating different mechanical structures and movement patterns.

[0056] It is understandable that in the technical solution provided in this embodiment: the modular splicing and detachable connection design make this children's educational toy extremely flexible and scalable. During the play, children can not only learn the basic principles and kinematic characteristics of the parallel robot, but also have a deep understanding of the mechanical structure and working principle by splicing and assembling various components by hand. At the same time, this design also encourages children to use their imagination and creativity, try different combinations and movement patterns, so as to cultivate their innovative thinking and problem-solving ability.

[0057] In this solution, all electrical components of the device as a whole rely on AC power for energy supply; specifically, the electrical components of the device as a whole are conventionally electrically connected to the AC power output port through devices such as relays, transformers and button panels to meet the energy supply requirements of all electrical components of the device.

[0058] Furthermore, for a children's educational toy disclosed in this specific embodiment, the (electrical components) as described in the context, and the (mechanisms) composed thereof can all execute a conventional PID controller algorithm (Proportion Integral Differential) through the controller 4 to achieve corresponding operation start and stop time intervals, speed, power and other output parameter controls, that is, to achieve the (mechanism) to execute a predetermined or preset action operation mode according to a certain function or motion trajectory.

[0059] Preferably, the controller is a PLC controller, which completes the above control requirements through conventional PLC control modes such as ladder diagrams, sequential function diagrams, function block diagrams, instruction tables or structured texts; it should be pointed out that the output parameters such as the start and stop time intervals, speed, power, etc. of the electrical components or other power components driven by its programming are non-limiting; specifically, the relevant drive control is adjusted according to actual usage requirements.

[0060] In summary, in view of the related problems in the traditional technology, this specific implementation is based on the above-mentioned educational toy for children, and adopts the following technical means or features to achieve the solution:

[0061] (1) Implementation of the parallel robot form: In the technology provided in this embodiment, a mechanical structure with the characteristics of a parallel robot is constructed by designing the trunk truss body component 101, the protruding part truss body component 102, the connecting part truss body component 104 and the mechanical arm mechanism 2. Among them, the introduction of the servo drive component 103 provides precise rotational freedom control for the mechanical arm, so that the mechanical arm can simulate the motion posture and trajectory of the parallel robot. This design not only realizes the basic form of the parallel robot, but also provides an intuitive and operable parallel robot model for children.

[0062] (2) Implementation of a programmable robotic arm toy: Through the precise control of the servo motor 1031 and the flexible articulation design of the connecting truss assembly 104, the robotic arm mechanism 2 can execute various complex motion instructions. Children can control the parameters such as the start, stop, direction and speed of the servo motor through programming instructions, thereby achieving precise control of the robotic arm. This programming control method not only improves the interactivity of the toy, but also allows children to learn programming knowledge and the control principle of parallel robots while playing.

[0063] (3) Modular design: Through the modular splicing and detachable connection of multiple entities 5, children can freely combine and disassemble the various parts according to their imagination and creativity to create different mechanical structures and movement modes. This design not only improves the playability and educational value of the toy, but also cultivates children's innovative thinking and problem-solving ability.

[0064] (4) Step-by-step adjustment function: The total length of the robot arm mechanism 2 can be adjusted in steps by adjusting the relative position or length between the first arm truss assembly 201 and the second arm truss assembly 202. This design allows children to observe the motion posture and trajectory of the parallel robot under different length variables, thereby deeply understanding the working principle and kinematic characteristics of the parallel robot.

[0065] The above-mentioned embodiments only express the implementation methods of the relevant practical applications of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A children's educational toy, characterized in that: It comprises a main body mechanism (1) and at least three sets of mechanical arm mechanisms (2) arranged in a circular array outside the main body mechanism (1); The end of the mechanical arm mechanism (2) is hingedly connected to a base (3), and the main body mechanism (1) to the mechanical arm mechanism (2), and the mechanical arm mechanism (2) to the base (3) form a closed kinematic chain system; The main body mechanism (1) can generate independent rotational degrees of freedom to drive the mechanical arm mechanism (2) to perform movement; when the main body mechanism (1) contacts the ground, the sequential generation of multiple rotational degrees of freedom can control the base (3) to perform universal angle adjustment.

2. The toy according to claim 1, characterized in that: The main body structure (1) comprises a trunk truss body component (101) and three protrusion truss body components (102) carried in an outer annular array; The mechanical arm mechanism (2) corresponds to and cooperates with the protruding part truss body component (102).

3. The toy according to claim 2, characterized in that: The main body mechanism (1) comprises a servo drive assembly (103) for generating the rotational degree of freedom.

4. The toy according to claim 3, characterized in that: The servo drive assembly (103) comprises a servo motor (1031) and a crank body (1032) driven to rotate by its output shaft; The servo motor (1031) is fixedly mounted on the protruding truss body component (102), and the crank body (1032) is used to drive the mechanical arm mechanism (2).

5. The toy according to claim 4, characterized in that: The main body mechanism (1) comprises a connecting part truss body component (104), one end of the connecting part truss body component (104) is hinged to the crank body (1032), and the other end is hinged to the mechanical arm mechanism (2).

6. The toy according to claim 5, characterized in that: The trunk truss body component (101), the protruding part truss body component (102), the connecting part truss body component (104) and the mechanical arm mechanism (2) are all formed by a plurality of entities (5) connected in a detachable manner; The external array of the entities (5) is provided with holes (501), and each of the entities (5) can be inserted into the corresponding hole (501) via a pin (502) to achieve fixed connection.

7. The toy according to any one of claims 1 to 6, characterized in that: The mechanical arm mechanism (2) comprises a first arm truss body component (201) and a second arm truss body component (202) matched therewith. It is mainly used to control the total length of the mechanical arm mechanism (2) and is controlled in a step-by-step adjustment mode, so as to help children understand the motion posture and trajectory of the parallel robot when facing different length variables with different stroke amounts.

8. The toy according to any one of claims 1 to 6, characterized in that: The main body (1) is externally equipped with a controller (4) that is programmable and stores logic, and the base (3) is equipped with a position sensor.

Images