Miniature robot dog structure

Abstract

The utility model discloses a mini robot dog structure, including main part and four leg parts, the leg part rotation is arranged on the main part, be provided with four drive mechanisms in the main part, four drive mechanisms each with a leg part is connected, four leg parts can rotate respectively, and the flexibility is higher, the leg part includes front casing, rear casing and soft rubber antiskid part, and the front casing is connected through screw with rear casing, and the soft rubber antiskid part is arc, can promote the continuity of movement and enhance the adaptability of robot dog in complex terrain, the outer surface of soft rubber antiskid part is provided with a plurality of antiskid grooves laterally, can enhance the antiskid effect, and the front and rear sides of soft rubber antiskid part extend outward and form the clamping part, the bottom of front casing and rear casing is provided with the installation port matched with soft rubber antiskid part, the inboard of installation port is provided with the clamping groove, and the clamping part is placed into the clamping groove, and can be replaced individually after the wear failure of soft rubber antiskid part, to reduce the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of toys, and more particularly to a structure for a miniature robotic dog. Background Technology

[0002] With breakthroughs in artificial intelligence and robotics, toy robot dogs have moved from the laboratory to the consumer market, becoming intelligent devices that combine entertainment, companionship, and assistance. Traditional mini robot dogs use aluminum feet, which are prone to slipping on smooth surfaces. When running, the insufficient coefficient of friction causes postural instability. Therefore, some robot dogs now have rubber anti-slip pads on their feet. However, these pads wear out easily with prolonged use and need to be replaced. Currently, the anti-slip pads on robot dog toys cannot be replaced separately, making them inconvenient to use. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a mini robot dog structure.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: a mini robotic dog structure, comprising a main body and four legs, the legs being rotatably mounted on the main body, and four drive mechanisms being provided inside the main body, each of the four drive mechanisms being connected to one leg. Each leg includes a front shell, a rear shell, and a soft rubber anti-slip part. The soft rubber anti-slip part is arc-shaped, and its outer surface is provided with several anti-slip grooves laterally. The front and rear sides of the soft rubber anti-slip part extend outward to form a snap-fit ​​part. The bottom of the front shell and the rear shell are provided with mounting openings that match the soft rubber anti-slip part. The soft rubber anti-slip part is detachably mounted on the mounting opening, and the inner side of the mounting opening is provided with a snap-fit ​​groove, into which the snap-fit ​​part is inserted.

[0005] Furthermore, the snap-fit ​​groove includes an inner groove edge and an outer groove edge, wherein the height of the inner groove edge is higher than that of the outer groove edge.

[0006] Furthermore, the drive mechanism includes an output shaft, the end of which is provided with a non-circular drive block, and the rear housing is provided with a drive groove that matches the contour of the drive block on the side facing the main body, and the drive block is placed in the drive groove.

[0007] Furthermore, the drive block, rear housing, and front housing are coaxially provided with screw mounting holes.

[0008] Furthermore, the drive mechanism also includes a housing, a drive motor, and a gear set.

[0009] Furthermore, the output end of the drive motor is provided with a drive gear that meshes with a gear set, and the middle part of the output shaft is provided with a driven gear that meshes with the gear set.

[0010] Furthermore, a potentiometer is also provided inside the main body, and a gear tooth is provided at the end of the output shaft away from the drive block. A potentiometer gear is provided on the potentiometer to mesh with the gear tooth.

[0011] Furthermore, a display screen is provided on the front of the main body, and a speaker is provided inside the main body.

[0012] This utility model includes at least one of the following beneficial effects: 1. The bottom of the legs is provided with a soft rubber anti-slip layer, which can increase friction and enable the robot dog to walk stably on smooth ground without easily causing posture fluctuations; 2. The soft rubber anti-slip part is arc-shaped. The arc-shaped end can more smoothly cross small obstacles (such as carpet edges, floor gaps) or uneven surfaces when the robot dog walks, reducing imbalance or falls caused by the end getting stuck, improving the continuity of movement. Compared with the flat end, the arc surface can form a larger contact area when contacting the ground, and can still maintain a certain friction at different angles, enhancing the robot dog's adaptability to complex terrain; 3. The soft rubber anti-slip part is detachably installed on the mounting port. When the soft rubber anti-slip part wears out, it can be replaced separately to reduce maintenance costs; 4. The four legs are driven by four drive mechanisms respectively, and the four legs can rotate independently, resulting in greater flexibility and a richer overall shape and movement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the main body.

[0015] Figure 3 This is a schematic diagram of the leg structure.

[0016] In the diagram: 1. Main body; 2. Legs; 21. Rear housing; 211. Drive groove; 22. Front housing; 23. Soft rubber anti-slip part; 231. Snap-fit ​​part; 232. Anti-slip groove; 24. Mounting port; 25. Snap-fit ​​groove; 251. Outer groove edge; 252. Inner groove edge; 3. Display screen; 4. Speaker; 51. Housing; 52. Drive motor; 53. Gear set; 54. Output shaft; 541. Drive block; 542. Gear teeth; 6. Potentiometer; 61. Potentiometer gear; 7. Screw mounting port. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Example: A mini robot dog structure includes a main body 1 and four legs 2. The legs 2 are rotatably mounted on the main body 1. The main body 1 contains four drive mechanisms, each connected to one leg 2. Each leg 2 can rotate independently, resulting in greater flexibility and a richer overall form and range of motion. Each leg 2 includes a front shell 22, a rear shell 21, and a soft rubber anti-slip part 23. The front shell 22 and rear shell 21 are connected by screws. The soft rubber anti-slip part 23 is arc-shaped, which improves the robot dog's movement continuity and enhances its adaptability to complex terrain. The outer surface of the soft rubber anti-slip part 23 is provided with several anti-slip grooves 232 in a transverse direction to enhance the anti-slip effect. The front and rear sides of the soft rubber anti-slip part 23 extend outward to form a snap-fit ​​part 231. The bottom of the front housing 22 and the rear housing 21 are provided with mounting openings 24 that match the soft rubber anti-slip part 23. The soft rubber anti-slip part 23 is detachably attached to the mounting opening 24. The inner side of the mounting opening 24 is provided with a snap-fit ​​groove 25. The snap-fit ​​part 231 is placed into the snap-fit ​​groove 25. After the soft rubber anti-slip part 23 wears and fails, it can be replaced separately to reduce maintenance costs.

[0019] Furthermore, the snap-fit ​​groove 25 includes an inner groove edge 252 and an outer groove edge 251. The height of the inner groove edge 252 is higher than that of the outer groove edge 251. When installing the soft rubber anti-slip part 23, the higher inner groove edge 252 can guide the snap-fit ​​part 231, making it easier for the snap-fit ​​part 231 to be placed into the snap-fit ​​groove 25. In addition, the larger inner groove edge 252 can also better disperse stress when the robot dog walks, avoiding local stress concentration that could lead to material fatigue fracture.

[0020] Furthermore, the drive mechanism includes an output shaft 54, with a square drive block 541 at the end of the output shaft 54. The rear housing 21 has a drive groove 211 that matches the contour of the drive block 541 on the side facing the main body 1. The drive block 541 is placed in the drive groove 211, and the output shaft 54 ​​can drive the leg 2 to rotate. The drive block 541, the rear housing 21, and the front housing 22 are coaxially provided with screw mounting holes 7. The output shaft 54 ​​and the leg 2 are connected by screws. When the soft rubber anti-slip part needs to be replaced, the screws are unscrewed, and the leg 2 can be removed separately. This makes it easy to remove the screws between the front housing 22 and the rear housing 21, so that the front housing 22 and the rear housing 21 can be separated, thereby replacing the soft rubber anti-slip part 23.

[0021] Furthermore, the drive mechanism also includes a housing 51, a drive motor 52, and a gear set 53.

[0022] Furthermore, the output end of the drive motor 51 is provided with a drive gear that meshes with the gear set 53, and the middle part of the output shaft 54 ​​is provided with a driven gear 542 that meshes with the gear set 53, and the drive motor 51 controls the output shaft 54 ​​to rotate.

[0023] Furthermore, a potentiometer 6 is provided on the housing 51, and a gear tooth 542 is provided at the end of the output shaft 54 ​​away from the drive block 541. A potentiometer gear 61 is provided on the potentiometer 6 to mesh with the gear tooth 542. When the output shaft 54 ​​rotates, the potentiometer 6 detects the joint rotation angle by the change in resistance value. When the robot dog's legs move, the potentiometer rotates with the joint and outputs a voltage signal proportional to the angle. The main control chip can obtain the actual joint angle by collecting this voltage value and combining it with the formula. The main control chip can plan the four-legged coordinated movement trajectory.

[0024] Furthermore, the main body 1 is provided with a display screen 3 on the front and a speaker 4 inside the main body 1.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A miniature robot dog structure, comprising a main body and four legs, wherein the legs are rotatably mounted on the main body, characterized in that... The main body is equipped with four drive mechanisms, each of which is connected to a leg. The leg includes a front shell, a rear shell, and a soft rubber anti-slip part. The soft rubber anti-slip part is arc-shaped, and its outer surface is provided with several anti-slip grooves laterally. The front and rear sides of the soft rubber anti-slip part extend outward to form a snap-fit ​​part. The bottom of the front shell and the rear shell are provided with mounting ports that match the soft rubber anti-slip part. The soft rubber anti-slip part is detachably attached to the mounting port. The inner side of the mounting port is provided with a snap-fit ​​groove, and the snap-fit ​​part is placed into the snap-fit ​​groove.

2. The structure of a mini robot dog according to claim 1, characterized in that... The snap-fit ​​groove includes an inner groove edge and an outer groove edge, wherein the height of the inner groove edge is higher than that of the outer groove edge.

3. The structure of a mini robot dog according to claim 1, characterized in that... The drive mechanism includes an output shaft, and a non-circular drive block is provided at the end of the output shaft. The rear housing is provided with a drive groove that matches the contour of the drive block on the side facing the main body, and the drive block is placed in the drive groove.

4. The structure of a mini robot dog according to claim 3, characterized in that... The drive block, rear housing, and front housing are coaxially provided with screw mounting holes.

5. The structure of a mini robot dog according to claim 4, characterized in that... The drive mechanism also includes a housing, a drive motor, and a gear set.

6. The structure of a mini robot dog according to claim 5, characterized in that... The output end of the drive motor is provided with a drive gear that meshes with a gear set, and the middle part of the output shaft is provided with a driven gear that meshes with the gear set.

7. The structure of a mini robot dog according to claim 6, characterized in that... The main body is also equipped with a potentiometer, and the end of the output shaft away from the drive block is provided with gear teeth. The potentiometer is provided with a potentiometer gear that meshes with the gear teeth.

8. A mini robot dog structure according to any one of claims 1-7, characterized in that... The main body has a display screen on its front and a speaker inside.

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