A core assembly for a plush octopus toy

Abstract

The utility model provides a kind of core assembly of plush octopus toy, it is related to toy technical field, including a kind of core assembly of plush octopus toy, including base shell, main body shell and top cover, mobile base station is embedded in the inside of base shell, and driving connecting seat is sleeved in the top surface of mobile base station, and the surface of driving connecting seat is circumferentially provided with limit slot, and the top surface of base shell is circumferentially distributed and is equipped with guide shaft, and the surface of guide shaft is axially equipped with mechanical claw main body, and the mechanical claw main body is equipped with eight groups, and driving assembly is equipped in the inside of main body shell, and the other end of mechanical claw main body is penetrated along the surface of connecting through slot, and mechanical arc arm is connected with torsion spring connecting shaft seat, and the action of contraction and opening is completely copied octopus tentacle dynamic, and the inlay design of guide head and limit slot makes action more smooth and natural, realizes action, movement, sound effect trinity's bionic interaction, breaks traditional toy static or single action limit, significantly improves the sense of immersion and exploration interest when children play.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, and in particular to a mechanism component of a plush octopus toy. Background Technology

[0002] In the current field of children's educational toys, most traditional educational toys focus on only a single function. For example, some puzzle toys are only used to train children's graphic cognition and assembly ability, or simple building block toys can only cultivate spatial construction thinking. They are seriously lacking in functional integration. From the perspective of interactive experience, most toys lack dynamic interactivity. When children operate the toys, the toys cannot make diverse and flexible feedback, making it difficult to simulate the interactive effects in real-life scenarios, which greatly reduces the children's immersion in play.

[0003] Existing educational toys suffer from limited functionality and insufficient interactivity, failing to stimulate children's enthusiasm for exploration and resulting in a lack of interactive experience and appeal. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of traditional toys in the prior art, such as poor interactivity and disjointed experience, and to propose a mechanism component for a plush octopus toy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mechanism assembly for a plush octopus toy, comprising a base shell, a main shell, and a top cover. A movable base is embedded inside the base shell, and a drive connecting seat is sleeved on the top surface of the movable base. A limiting groove is formed on the circumference of the surface of the drive connecting seat. Guide shafts are distributed circumferentially on the top surface of the base shell. Mechanical claw bodies are axially connected to the surface of the guide shafts, and there are eight sets of mechanical claw bodies. A drive assembly is provided inside the main shell. One end of the mechanical claw body is movably embedded in the limiting groove. A connecting through groove is formed circumferentially at the joint between the base shell and the main shell, and the other end of the mechanical claw body penetrates along the surface of the connecting through groove.

[0006] Preferably, the drive assembly includes a mounting housing and a power motor. The mounting housing is screwed to the surface of the main housing. A gear set is provided inside the mounting housing. The side of the gear at the top of the gear set is connected to the output shaft of the power motor. Drive cams are symmetrically connected to both sides of the bottom end of the gear set, and the drive cams are located outside the mounting housing. A cam post is provided near the edge of the surface of the drive cam. The cam post abuts against the top of the drive connecting seat. When the power motor of the drive assembly rotates, it drives the drive cam connected to the gear set to rotate. When the drive cam rotates, the cam post on the surface intermittently applies an upward force to the guide waist block. By rotating the drive motor in both directions, the upward force on the guide waist block is applied and released, causing the drive connecting seat to move up and down. This achieves the downward pressure and upward movement of the guide head at the end of the mechanical claw body. When the drive connecting seat moves upward, it lifts the guide head of the mechanical claw body. With the help of the torsion spring connecting shaft seat, the entire mechanical claw body retracts inward and opens outward, making the entire mechanical claw body open and close like the tentacles of an octopus, which is highly biomimetic and interesting.

[0007] Preferably, a pair of connecting posts are symmetrically distributed on both sides of the top surface of the drive connecting seat. The surface of the connecting post is provided with a guide waist-shaped block, and the two ends of the guide waist-shaped block are connected to the top surface of the connecting post by screws. The surface of the drive cam abuts against the side of the waist-shaped connecting seat, and the surface of the cam post abuts against the bottom surface of the guide waist-shaped block. The drive connecting seat is provided with guide posts distributed around its circumference, and the top surface of the guide posts abuts against the end of the mechanical claw body.

[0008] Preferably, the mechanical claw body includes a mechanical arc arm and a guide head. The top end of the mechanical arc arm is movably connected to a torsion spring connecting shaft seat. One end of the torsion spring connecting shaft seat with the torsion spring is connected to the surface of the guide shaft. The torsion spring connecting shaft seat is axially connected to the end of the guide head through the guide shaft. The end of the guide head is inserted into the limiting groove of the drive connecting seat and abuts against the top surface of the guide post.

[0009] Preferably, the bottom of the mobile base is connected to the bottom surface of the base shell, one side of the bottom surface of the mobile base is provided with two wheels, the other side of the bottom surface of the mobile base is provided with a single wheel, and a charging interface is provided on the bottom surface of the mobile base near the position of the two wheels. The entire device can move autonomously during operation.

[0010] Preferably, the drive assembly has a lithium battery on top, and a speaker is connected to the top of the lithium battery and electrically connected to the lithium battery. The top cover has a through hole corresponding to the speaker. Through the controller and the speaker, the entire device can imitate and play external sounds, increasing the fun.

[0011] Preferably, the top surface of the base shell engages with the bottom surface of the main shell, and the circumference of the joint between the base shell and the main shell is connected by vertical screws. The edge of the top surface of the main shell engages with the bottom surface of the top cover, and screws are provided vertically in the circumference of the joint between the top cover and the main shell.

[0012] Beneficial effects In this invention, the forward and reverse rotation of the motor in the drive component, in conjunction with the gear set, drives the drive cam to rotate, causing the cam column to apply intermittent force to the guide waist block. This drives the connecting seat to move up and down precisely to control the mechanical claw body. The mechanical arc arm, combined with the torsion spring connecting shaft seat, perfectly replicates the dynamics of octopus tentacles in its contraction and opening movements. The fitting design of the guide head and the limiting groove makes the movements smoother and more natural. At the same time, the dual-wheel drive plus single-wheel balance structure of the autonomous movement system, combined with the speaker through-hole sound transmission design for sound effect imitation function, achieves a three-in-one biomimetic interaction of movement, motion, and sound effects. This breaks the limitations of traditional toys that are static or have only one action, and significantly enhances children's sense of immersion and interest in exploration during play.

[0013] In this invention, a compact gear set and drive cam form the core of the power transmission, converting the motor power into displacement of the drive connector without redundancy. The abutment design between the cam column and the waist-shaped block ensures stable power transmission. The modular mounting shell is screwed to the main shell, and the through-slot design between the base and the main shell facilitates the inspection and replacement of internal components, while the cooperation of the guide column and the limiting groove prevents the mechanical claw from deviating. The charging interface of the mobile base is integrated with a multi-component snap-fit ​​and screw-fixed structure, which enhances the toy's impact resistance, extends its service life, and reduces maintenance costs while ensuring continuous operation. Attached Figure Description

[0014] Figure 1 This is an open three-dimensional structural view of the present invention; Figure 2 This is a closed three-dimensional structural diagram of the present invention; Figure 3 This is a surface connection structure diagram of the drive connector of this utility model; Figure 4 This is a structural diagram of the bottom of the base shell of this utility model; Figure 5 This is a structural diagram of the main body shell connection of this utility model; Figure 6 This is a structural diagram of the connecting part on the surface of the base shell of this utility model; Figure 7 This is a front sectional view of the present invention; Figure 8 This is a side sectional view of the present invention.

[0015] Legend: 1. Base shell; 2. Guide shaft; 3. Mechanical claw body; 301. Mechanical arc arm; 302. Torsion spring connecting shaft seat; 303. Guide head; 4. Main body shell; 5. Connecting through slot; 6. Top cover; 7. Speaker; 8. Lithium battery; 9. Drive assembly; 901. Mounting shell; 902. Power motor; 903. Gear set; 904. Drive cam; 905. Cam column; 10. Moving base; 1001. Moving double wheels; 1002. Moving single wheel; 1003. Charging interface; 11. Drive connecting seat; 1101. Connecting column; 1102. Guide waist block; 1103. Limiting slot; 1104. Guide column. Detailed Implementation

[0016] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1: Reference Figures 1 to 8A mechanism assembly for a plush octopus toy includes a base shell 1, a main body shell 4, and a top cover 6. A movable base 10 is embedded inside the base shell 1. A drive connector 11 is sleeved on the top surface of the movable base 10. A limit groove 1103 is formed on the circumference of the drive connector 11. Guide shafts 2 are distributed circumferentially on the top surface of the base shell 1. Mechanical claw bodies 3 are axially connected to the surface of the guide shafts 2, and the mechanical claw bodies 3 have eight sets. A drive assembly 9 is located inside the main body shell 4. The drive assembly 9 is equivalent to the toy's mechanism assembly, mainly used to control the movement of the mechanical claw bodies 3, allowing them to stand or sit. For aesthetic purposes, plush covers can be added to the surfaces of the main body shell 4, mechanical claw bodies 3, and other components to enhance the toy's appearance. One end of the body 3 is movably embedded in the limiting groove 1103. A connecting groove 5 is provided around the joint between the base shell 1 and the main shell 4. The other end of the mechanical claw body 3 passes through the surface of the connecting groove 5. The base shell 1, the main shell 4, and the top cover 6 together form the external frame of the toy, providing protection and support for the internal components. The movable base 10 embedded inside the base shell 1 is the core load-bearing component of the bottom structure of the entire toy. The drive connecting seat 11 sleeved on its top surface is movably connected to one end of the mechanical claw body 3 through the limiting groove 1103 opened around the surface, becoming a key transmission node for controlling the movement of the mechanical claw. The guide shafts 2 distributed around the top surface of the base shell 1 provide a stable shaft connection point for the mechanical claw body 3, ensuring that the mechanical claw will not deviate from the preset trajectory during the movement. The drive component 9 inside the main shell 4 serves as the power source, controlling the movement of the mechanical claw through linkage with the drive connector 11. The connecting groove 5 at the joint between the base shell 1 and the main shell 4 provides a through channel for the other end of the mechanical claw body 3, while also limiting the range of motion of the mechanical claw to prevent unnecessary friction or collision with the shell. This structural design allows the mechanical claw body 3 to move flexibly like octopus tentacles, giving the toy a basic biomimetic form. The top surface of the base shell 1 engages with the bottom surface of the main shell 4, and the circumference of the joint between the base shell 1 and the main shell 4 is connected by vertical screws. The top edge of the main shell 4 engages with the bottom surface of the top cover 6, and the circumference of the joint between the top cover 6 and the main shell 4 is vertically screwed. The connection between the base shell 1 and the main shell 4 via the circumferential vertical screws at the joint ensures the stability of the connection and facilitates disassembly and maintenance. The engagement design between the top edge of the main shell 4 and the bottom surface of the top cover 6, combined with the circumferential vertical screws, ensures the secure installation of the top cover 6 while also facilitating the inspection of internal components. This multi-part connection method balances structural stability and ease of maintenance, making the toy less prone to damage from collisions or vibrations during daily use, extending its service life, and reducing the difficulty and cost of later repairs.

[0019] Drive assembly 9 includes a mounting housing 901 and a power motor 902. The mounting housing 901 is screwed to the surface of the main housing 4. A gear set 903 is provided inside the mounting housing 901. The side of the gear at the top of the gear set 903 is connected to the output shaft of the power motor 902. Drive cams 904 are symmetrically connected to both sides of the bottom end of the gear set 903 and are located outside the mounting housing 901. A cam post 905 is provided near the edge of the surface of the drive cam 904. The cam post 905 abuts against the top of the drive connecting seat 11. When the power motor 902 of drive assembly 9 rotates, it drives the drive cam 904 connected to the gear set 903 to rotate. When the drive cam 904 rotates, the cam post 905 on the surface of the drive cam intermittently applies pressure to the guide waist block 1102. The upward force, through the rotation and reversal of the drive motor, applies and releases force on the guide waist block 1102, causing the drive connecting seat 11 to move up and down. This presses down and moves up on the guide head 303 at the end of the mechanical claw body 3. When the drive connecting seat 11 moves up, it lifts the guide head 303 of the mechanical claw body 3. This, combined with the torsion spring connecting shaft seat 302, allows the entire mechanical claw body 3 to retract inward and open outward, making it resemble an octopus opening and closing its tentacles. This biomimetic design is highly engaging. The drive assembly 9 is the core power system for realizing the mechanical claw's movements. The mounting housing 901 is connected to the main housing 4 with screws, providing a stable mounting base for the internal gear set 903 and the power motor 902. The power motor 902, as the power source, has its output shaft connected to the top gear of the gear set 903. Through the transmission action of the gear set 903, power is transmitted to the drive cams 904 on both sides of the bottom, causing the drive cams 904 to rotate synchronously with the motor. During rotation, the cam post 905 on the edge of the driving cam 904 intermittently applies an upward force to the guide waist block 1102 at the top of the driving connecting seat 11. The forward and reverse rotation control of the power motor 902 allows for the application and release of force on the guide waist block 1102, thereby driving the driving connecting seat 11 to move vertically up and down. When the driving connecting seat 11 moves upward, it generates an upward pulling force on the guide head 303 at the end of the mechanical claw body 3. Combined with the elastic reset effect of the torsion spring connecting shaft seat 302, this causes the mechanical claw body 3 to retract inward. When the driving connecting seat 11 moves downward, the pulling force disappears, and the mechanical claw body 3 opens outward under the reaction force of the torsion spring. This linkage logic, driven by a motor, driven by gears, and pressed by a cam, accurately simulates the opening and closing motion of an octopus's tentacles, significantly enhancing the toy's biomimetic appeal and motor coordination.

[0020] A pair of connecting posts 1101 are symmetrically distributed on both sides of the top surface of the drive connecting seat 11. Guide waist-shaped blocks 1102 are provided on the surface of the connecting posts 1101, and the two ends of the guide waist-shaped blocks 1102 are connected to the top surface of the connecting posts 1101 by screws. The surface of the drive cam 904 abuts against the side of the waist-shaped connecting seat, and the surface of the cam post 905 abuts against the bottom surface of the guide waist-shaped blocks 1102. Guide posts 1104 are distributed circumferentially around the drive connecting seat 11. The top surface of the guide posts 1104 abuts against the mechanical gripper. The main body 3 has its ends abutting against each other. The connecting posts 1101 on both sides of the top surface of the drive connecting seat 11 are fixedly connected to the two ends of the guide waist block 1102 by screws, so that the guide waist block 1102 can move stably and synchronously with the drive connecting seat 11. The design of the drive cam 904 abutting against the side of the waist connecting seat and the cam post 905 abutting against the bottom surface of the guide waist block 1102 ensures that the force of the cam post 905 on the guide waist block 1102 can be efficiently transmitted to the drive connecting seat 11. The guide posts 1104 distributed circumferentially on the bottom surface of the drive connecting seat 11 directly abut against the ends of the main body 3 of the mechanical claw, becoming the direct force-applying component for controlling the movement of the mechanical claw when the drive connecting seat 11 moves up and down. This structural design, through the precise cooperation of multiple components, efficiently converts the power of the drive assembly 9 into the up and down displacement of the drive connecting seat 11, and then converts the displacement into the motion control of the mechanical claw through the guide posts 1104, forming a continuous power transmission chain, ensuring the stability and accuracy of the mechanical claw's movement.

[0021] Preferably, the mechanical claw body 3 includes a mechanical arc arm 301 and a guide head 303. A torsion spring connecting shaft seat 302 is movably connected to the top of the mechanical arc arm 301. One end of the torsion spring connecting shaft seat 302 with the torsion spring is connected to the surface of the guide shaft 2. The torsion spring connecting shaft seat 302 is axially connected to the end of the guide head 303 via the guide shaft 2. The end of the guide head 303 is inserted into the limiting groove 1103 of the drive connecting seat 11 and abuts against the top surface of the guide post 1104. The mechanical arc arm 301 of the mechanical claw body 3 adopts an arc-shaped design, which conforms to the biomimetic form of octopus tentacles and reduces interference with other components during movement. One end of the torsion spring connecting shaft seat 302 at the top is connected to the guide shaft 2 and contains a torsion spring; the other end is axially connected to the end of the guide head 303 via the guide shaft 2. This structure allows the mechanical claw body 3 to rotate flexibly around the guide shaft 2, while the torsion spring provides a restoring elastic force for the mechanical claw. The end of the guide head 303 is inserted into the limiting groove 1103 of the drive connecting seat 11 and abuts against the guide post 1104. When the drive connecting seat 11 moves up and down, the guide post 1104 pushes or pulls the guide head 303, causing the mechanical claw body 3 to rotate around the torsion spring connecting shaft seat 302. When the guide head 303 is lifted, the mechanical arc arm 301 retracts inward under the action of the torsion spring force; when the guide head 303 is pressed down, the mechanical arc arm 301 opens outward against the torsion spring force. The elastic action of the torsion spring connecting shaft seat 302 combined with the mechanical drive of the drive connecting seat 11 makes the movement of the mechanical claw smoother and more natural, perfectly replicating the dynamic effect of the octopus tentacles extending and retracting.

[0022] A movable platform 10 is embedded inside the base shell 1, with its bottom end penetrating the bottom surface of the base shell 1. One side of the bottom surface of the movable platform 10 has two movable wheels 1001, and the other side has a single movable wheel 1002. A charging port 1003 is located on the bottom surface of the movable platform 10 near the two movable wheels 1001. The entire device can move autonomously during operation. The movable platform 10 inside the base shell 1 not only supports the upper structure, but its bottom end penetrating the bottom surface of the base shell 1 allows the bottom moving parts to directly contact the ground. The movable wheels 1001 on one side of the bottom surface of the movable platform 10 provide the main driving force, while the single movable wheel 1002 on the other side assists in balance. The combination of these three elements enables the toy to move autonomously, enhancing its interactivity and playability. A switch is located on one side of the bottom of the movable platform 10 to control the opening and closing of the entire device. The charging port 1003 located on the bottom surface of the mobile base 10 near the mobile dual wheels 1001 provides a convenient charging method for the toy, ensuring that the toy can run continuously and eliminating the need for users to frequently replace batteries, thus improving the user experience.

[0023] A lithium battery 8 is mounted on the top of the drive assembly 9, and a speaker 7 is connected to the top of the lithium battery 8, with the speaker 7 electrically connected to the lithium battery 8. A through-hole corresponding to the speaker 7 is opened on the surface of the top cover 6. Through the controller and the speaker 7, the entire device can imitate and play external sounds, increasing its fun. A PCB control board is connected to the side of the lithium battery 8 on the top of the drive assembly 9. The PCB control board, as the toy's electronic control core, is electrically connected to the speaker 7, receiving and processing commands to control the speaker 7 to imitate external sounds and play them through the corresponding through-hole on the surface of the top cover 6. This sound effect function, combined with the movements of the mechanical claw and the base, enhances the toy's fun from multiple aspects, including visual, auditory, and interactive experiences. It allows the toy to not only perform biomimetic movements but also emit simulated sounds, making the overall interactive effect richer and more vivid, and more likely to attract the attention of users, especially children. Specific Implementation Example 2: Reference Figures 1 to 8 Based on the content of the above specific embodiments, the following content is further disclosed: The entire device further includes the following: The sound sensor integrated on the PCB control board connected to the lithium battery 8 uses a high-sensitivity electret microphone, capable of acquiring external sound signals within the 30-10000Hz range. The acquired analog audio signals are converted to digital signals by an ADC module and then transmitted to the main control chip. The main control chip uses an STM32F103 series microcontroller with a built-in sound feature extraction algorithm. This algorithm performs spectrum analysis, feature extraction, and noise reduction on the input sound signal, identifying target sound signals such as human voices. When a valid sound input is detected, the main control chip... 2 The S-interface controls the audio encoding chip to sample and encode the sound signal, and the encoded audio data is temporarily stored in the onboard 38KB buffer.

[0025] The speaker 7 playback control logic adopts a PWM audio drive method. The main control chip generates a corresponding PWM waveform based on the buffered audio data, and the signal is amplified by the TDA2822M power amplifier chip before being transmitted to the 4Ω 3W full-range speaker 7. The sound imitation function is implemented through the main control chip's sound synthesis module, which has 10 built-in basic sound effect templates. It can automatically match template parameters based on the collected sound feature values, adjusting pitch, speech rate, and volume parameters to achieve simulated human voice reproduction. During playback, the main control chip controls the on / off state of speaker 7 through GPIO pins, supporting continuous recording for 5 seconds and adjustable loop playback times. An LED indicator flashes to indicate when recording is complete.

[0026] The control core of the mobile base station 10 is an independent motor drive module L298N dual H-bridge drive chip, which communicates with the main control chip via I / O. 2C-bus communication. The miniature drive motors of the dual-wheel 1001 are independently controlled by two channels of the drive module. The main control chip adjusts the motor speed by outputting PWM signals to achieve forward, backward, and turning functions: when the dual wheels receive forward rotation signals with the same duty cycle, the toy moves forward in a straight line; when the dual wheels receive signals with different duty cycles, they turn by the speed difference; and when they receive reverse signals, they move backward. The single-wheel 1002 is a passive follow-up wheel that automatically adapts to the ground slope through a ball joint structure, forming a three-point support structure with the dual wheels to ensure stable movement. The power supply uses a 3.7V 300mAh lithium polymer battery. The battery pack is fixed inside the mobile base 10 by a battery holder. The output voltage is converted to two power supplies, 3.3V and 5V, by a DC-DC voltage regulator module: the 3.3V power supply powers the main control chip, sensors, and logic circuits on the PCB control board on the side of the lithium battery 8, and the 5V power supply powers the power motor 902, the speaker 7 power amplifier chip, and the drive module. The charging interface 1003 is connected to the battery through the charging management chip TP4056, which supports 5V / 1A charging input. During charging, the management chip controls the LED indicator to display the charging status. Once fully charged, it automatically stops charging and switches to trickle mode. The battery power data is fed back to the main control chip in real time through the voltage detection circuit. When the battery is low, an audible and visual alarm is triggered.

[0027] After the device is started, the main control chip first performs an initialization self-test, checking the status of each module, such as the motor drive, sound sensor, and battery level, through the I / O ports. Upon successful self-test, the speaker 7 emits a start-up prompt tone, and simultaneously, the mechanical gripper body 3 performs a complete opening and closing motion. The movement control logic employs a random path algorithm. The main control chip generates random turning angles and movement duration parameters at 5-second intervals by default. The motor drive module controls the dual wheels to move according to the set parameters. During movement, a current detection circuit monitors ground resistance, automatically triggering a reverse steering command upon encountering an obstacle.

[0028] The sound imitation function is in real-time monitoring mode. The sound sensor continuously collects ambient sound. When a human voice signal is detected and its intensity exceeds 60dB, the main control chip pauses the current movement command for 0.5 seconds, starts the recording program, and immediately calls the sound synthesis module to process the audio data after recording is completed. The imitation sound is played through speaker 7 while movement resumes. The mechanical gripper opening and closing control and drive component 9 form a closed-loop linkage. The main control chip generates a 2Hz square wave signal through a timer to control the forward and reverse rotation of the power motor 902: when rotating forward, the drive cam 904 pushes the drive connecting seat 11 upward, and the mechanical gripper retracts; when rotating in reverse, the cam releases pressure, and the mechanical gripper opens under the action of the torsion spring. The opening and closing action, movement, and sound generation action are coordinated through the task scheduling mechanism of the main control chip to achieve a synchronous linkage effect of "movement-sound generation-opening and closing". The interval between each action can be dynamically adjusted through program parameters. Specific Implementation Example 3: Reference Figures 1 to 8 Based on the content of the above specific embodiments, the following content is further disclosed: The base shell 1 is made of food-grade ABS material by injection molding. It has a disc-shaped structure and a 2mm high anti-slip silicone ring on the bottom edge to enhance the stability of the toy when it moves.

[0030] The main body shell 4 is also made of ABS material and has a cylindrical structure. Eight guide shaft 2 mounting seats are evenly distributed around the inner circumference. Each mounting seat has a 5mm diameter shaft hole. The guide shaft 2 is a 5mm diameter 45# steel shaft, with both ends inserted into the shaft holes via interference fit. The shaft surface is chrome-plated for rust prevention. The drive assembly 9's mounting shell 901 has a stepped structure and is fixed to the mounting boss on the top surface of the main body shell 4 by six M3 screws. The mounting shell 901 contains three layers of gear mounting shafts. The gear set 903 includes a driving gear, an intermediate gear, and a driven gear, all with a module of 0.5 and tooth counts of 3, 24, and 36 teeth respectively. Gear meshing achieves speed reduction transmission with a reduction ratio of 1:3. The power motor 902 is a DC geared motor with a rated power of 5W. The output shaft is connected to the driving gear via a key, and the motor has heat dissipation fins on its outer side. The drive cam 904 has an eccentric disc structure with a thickness of 8mm. The edge cam post 905 has a diameter of 6mm and a height of 10mm, with a smooth surface treatment to reduce friction.

[0031] The main body shell 4 is 60mm high, with four symmetrically distributed guide ribs on its inner wall. These ribs slide against the guide grooves on the outer side of the mounting shell 901, ensuring precise installation of the drive assembly 9. A 2mm wide sealing strip is provided at the seam between the main body shell 4 and the base shell 1. Six circumferentially distributed M2.5 screws are used for connection, with the screw heads embedded in countersunk holes on the shell surface to maintain a smooth appearance. The top cover 6 is made of transparent PC material, 2mm thick, with a honeycomb pattern of 1mm diameter circular through-holes corresponding to the speaker 7. The lithium battery 8 is connected to the top surface of the mounting shell 901 via four screws. A PCB control board is located on the side of the lithium battery 8, integrating a Bluetooth module, a sound sensor, and a motor drive chip. The control board is connected to the power motor 902 and the speaker 7 via ribbon cables, with anti-detachment clips at the cable interfaces.

[0032] In summary: 1. The mechanical claw body 3 is controlled by the forward and reverse rotation of the motor via the drive component 9, which, together with the gear set 903, drives the drive cam 904 to rotate. This causes the cam column 905 to intermittently apply force to the guide waist block 1102, driving the connecting seat 11 to move up and down precisely to control the mechanical claw body 3. The mechanical arc arm 301, combined with the torsion spring connecting shaft seat 302, perfectly replicates the dynamics of octopus tentacles in its contraction and opening movements. The fitting design of the guide head 303 and the limiting groove 1103 makes the movements smoother and more natural. At the same time, the dual-wheel drive plus single-wheel balance structure of the autonomous movement system, combined with the through-hole sound transmission design of the speaker 7 with sound effect imitation function, realizes a three-in-one bionic interaction of movement, motion, and sound effects, breaking the limitations of traditional toys' static or single-action limitations, and significantly enhancing children's sense of immersion and exploration interest during play. 2. A compact gear set 903 and a drive cam 904 form the core of the power transmission system, converting the motor power into the displacement of the drive connector 11 without redundancy. The abutment design between the cam column 905 and the waist-shaped block ensures stable power transmission. The modular mounting shell 901 is screwed to the main shell 4. The through-slot design between the base and the main shell 4 facilitates the inspection and replacement of internal components and prevents the mechanical claw from shifting due to the cooperation of the guide column 1104 and the limiting groove 1103. The charging interface 1003 of the movable base 10 is integrated with a multi-component snap-fit ​​and screw-fixed structure, which enhances the toy's impact resistance, extends its service life, and reduces maintenance costs while ensuring continuous operation.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mechanism assembly for a plush octopus toy, comprising a base shell (1), a main body shell (4), and a top cover (6), characterized in that: The base shell (1) is embedded with a movable base (10). The top surface of the movable base (10) is fitted with a drive connecting seat (11). The drive connecting seat (11) has a circumferentially ...

2. The mechanism assembly of a plush octopus toy according to claim 1, characterized in that: The drive assembly (9) includes a mounting housing (901) and a power motor (902). The mounting housing (901) is screwed to the surface of the main housing (4). A gear set (903) is provided inside the mounting housing (901). The gear side at the top of the gear set (903) is connected to the output shaft of the power motor (902). A drive cam (904) is symmetrically connected on both sides of the bottom end of the gear set (903). The drive cam (904) is located outside the mounting housing (901). A cam post (905) is provided near the edge of the surface of the drive cam (904). The cam post (905) abuts against the top of the drive connecting seat (11).

3. The mechanism assembly of a plush octopus toy according to claim 2, characterized in that: The top surface of the drive connecting seat (11) is provided with a pair of connecting posts (1101) symmetrically distributed on both sides. The surface of the connecting post (1101) is provided with a guide waist block (1102), and the two ends of the guide waist block (1102) are connected to the top surface of the connecting post (1101) by screws. The surface of the drive cam (904) abuts against the side of the waist connecting seat, and the surface of the cam post (905) abuts against the bottom surface of the guide waist block (1102). The drive connecting seat (11) is provided with guide posts (1104) distributed around the circumference. The top surface of the guide post (1104) abuts against the end of the mechanical claw body (3).

4. The mechanism assembly of a plush octopus toy according to claim 3, characterized in that: The mechanical claw body (3) includes a mechanical arc arm (301) and a guide head (303). The top end of the mechanical arc arm (301) is movably connected to a torsion spring connecting shaft seat (302). One end of the torsion spring connecting shaft seat (302) with the torsion spring is connected to the surface of the guide shaft (2). The torsion spring connecting shaft seat (302) is axially connected to the end of the guide head (303) through the guide shaft (2). The end of the guide head (303) is inserted into the limiting groove (1103) of the drive connecting seat (11) and abuts against the top surface of the guide post (1104).

5. The mechanism assembly of a plush octopus toy according to claim 1, characterized in that: The bottom of the mobile base (10) penetrates the bottom surface of the base shell (1). The bottom surface of the mobile base (10) is provided with a double wheel (1001) on one side and a single wheel (1002) on the other side. The bottom surface of the mobile base (10) is provided with a charging interface (1003) near the double wheel (1001).

6. The mechanism assembly of a plush octopus toy according to claim 1, characterized in that: The drive assembly (9) is provided with a lithium battery (8) on top, and a speaker (7) is connected to the top of the lithium battery (8). The speaker (7) is electrically connected to the lithium battery (8). The top cover (6) has a through hole corresponding to the speaker (7) on its surface.

7. The mechanism assembly of a plush octopus toy according to claim 1, characterized in that: The top surface of the base shell (1) is engaged with the bottom surface of the main shell (4), and the circumference of the joint between the base shell (1) and the main shell (4) is connected by vertical screws. The edge of the top surface of the main shell (4) is engaged with the bottom surface of the top cover (6), and the circumference of the joint between the top cover (6) and the main shell (4) is provided with screws in the vertical direction.

Images