Ankle joint structure and human-shaped toy
By designing dampers and an ankle joint structure with orthogonal rotation degrees of freedom in human toys, the problem of difficulty in rotating and weight in larger human toys is solved, and the adjustment of various postures and the stability of the ankle joint is achieved.
Patent Information
- Application Number
- CN202421409369.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The prior art is difficult to design an ankle structure that can rotate in larger human toys and bear weight, resulting in larger human toys being designed to be unable to rotate to ensure the stability of the ankle.
Using an ankle structure including a damper, a leg connection assembly and a foot connection assembly, the damper provides a torque of 35KGF to bear weight, and allows the soles of the foot to achieve rotation at different angles through three mutually orthogonal degrees of freedom of rotation.
It realizes a variety of posture adjustments for larger human toys, such as standing, sideways, running, etc., which enhances the attractiveness of the product and ensures the stability and safety of the ankle joint structure.
Smart Images
Figure CN222900182U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of toys, and particularly relates to an ankle joint structure and a humanoid toy. Background Art
[0002] The anime IP industry is getting larger and larger. In the anime IP industry, it is necessary to produce and assemble the characters in anime works into model toys. Among them, humanoid model toys, such as anime heroes, monsters, robots and other model toys, need to achieve a variety of postures and movements, such as standing, walking, running, squatting and other postures. The ankle part of the humanoid toy needs to bear the weight of the whole model toy, and at the same time, it needs to be able to rotate the ankle to ensure that the humanoid toy can complete these postures. In humanoid toys with small weights, simple ankle connectors such as ball heads can be used to meet the requirements of load-bearing and rotation. However, in large plush doll models with large weights, such simple ankle connectors that can rotate cannot bear the weight of the whole model toy, resulting in the structure at the ankle being extremely easy to damage during use. Therefore, most large humanoid toys design the ankles to be non-rotatable to ensure that the ankles can bear the weight of the whole humanoid toy.
[0003] Therefore, it is necessary to design an ankle structure that can rotate and at the same time can bear the large weight of a humanoid toy to meet the user's requirement that a large humanoid toy can also be adjusted between different postures. Summary of the Utility Model
[0004] In order to solve the deficiencies of the prior art, the utility model provides an ankle joint structure and a humanoid toy.
[0005] In a first aspect, the utility model provides an ankle joint structure, which includes a damper, a leg connection component and a foot connection component. The damper is arranged between the leg connection component and the foot connection component. The leg connection component is installed at one end of the lower leg close to the sole of the foot, and the foot connection component is installed on one side of the sole of the foot close to the lower leg. The leg connection component has a first rotational degree of freedom, the damper has a second rotational degree of freedom, and the foot connection component has a third rotational degree of freedom. The first rotational degree of freedom, the second rotational degree of freedom and the third rotational degree of freedom are mutually orthogonal.
[0006] In some embodiments, the damper is a rotary damper.
[0007] In some embodiments, the leg connection component includes a fixed sleeve and a rotating shaft. The fixed sleeve is fixed inside the lower leg, the rotating shaft is movably arranged inside the fixed sleeve, the axial direction of the rotating shaft is parallel to the length direction of the lower leg, retaining rings are arranged at both ends of the rotating shaft, and the fixed sleeve is sleeved on the rotating shaft and located between the two retaining rings.
[0008] In some of these embodiments, a first connecting sleeve is provided at the lower end of the rotating shaft, and the first connecting sleeve is fixedly connected to the first rotating part of the damper.
[0009] In some of these embodiments, the foot connecting assembly includes a connecting seat and a second connecting sleeve. The connecting seat is fixed in the fixing groove of the sole, the second connecting sleeve is fixedly connected to the second rotating part of the damper, and a connecting shaft rotatably connected to the second connecting sleeve is provided on the connecting seat.
[0010] In some of these embodiments, a connecting hole is provided on the outer side of the second connecting sleeve, and the connecting shaft is inserted into the connecting hole.
[0011] In some of these embodiments, the rotating shaft, the connecting shaft and the rotating shaft of the damper are orthogonal to each other.
[0012] In some of these embodiments, first positioning planes are provided on the outer walls of the first rotating part and the second rotating part of the damper, second positioning planes are provided on the inner walls of the first connecting sleeve and the second connecting sleeve, and the second positioning planes are adapted to the first positioning planes to position the first rotating part and the second rotating part of the damper with the first connecting sleeve and the second connecting sleeve respectively.
[0013] In some of these embodiments, a limiting groove communicating with the fixing groove is provided in the sole, the trend of the limiting groove is parallel to the length direction of the damper, and the limiting groove cooperates with both ends of the damper to limit the rotation angle of the foot connecting assembly.
[0014] In a second aspect, the present utility model also provides a humanoid toy, including the ankle joint structure described in the first aspect.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: three mutually orthogonal rotational degrees of freedom are formed by the leg connecting assembly, the damper and the foot connecting assembly, so that the sole can rotate relative to the leg at different angles, thereby enabling the humanoid toy to pose different postures. The weight of the humanoid toy is borne by a rotary damper with a torque of 35KGF to ensure the stability and safety of the ankle joint structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three-dimensional structural schematic diagram of the ankle joint structure of the embodiment of the present application.
[0017] Figure 2 is a planar structural schematic diagram of the ankle joint structure of the embodiment of the present application.
[0018] Figure 3 is an exploded structural schematic diagram of the ankle joint structure of the embodiment of the present application.
[0019] Reference signs: 101, first rotational degree of freedom; 102, second rotational degree of freedom; 103, third rotational degree of freedom;
[0020] 1, leg;
[0021] 2, sole; 21, fixing groove; 22, limiting groove;
[0022] 3, damper; 31, rotating shaft; 32, first rotating part; 33, second rotating part; 34, first positioning plane; 35, first screw hole;
[0023] 4, leg connection assembly; 41, fixing sleeve; 42, half sleeve; 43, fixing piece; 44, positioning groove; 45, rotating shaft; 46, retaining ring; 47, first connection sleeve; 48, second positioning plane; 49, second screw hole;
[0024] 5, foot connection assembly; 51, connection seat; 52, mounting ear; 53, connection shaft; 54, second connection sleeve; 55, connection part; 56, connection hole;
[0025] 61, first bolt; 62, second bolt; 63, third bolt; 64, fourth bolt. Detailed implementation manner
[0026] The detailed implementation manner of the present utility model is introduced with reference to the accompanying drawings.
[0027] Refer to Figure 1 , which is a three-dimensional structural schematic diagram of an ankle joint structure. The upper part is the leg 1, and the lower part is the sole 2. The leg 1 and the sole 2 are rotatably connected through the leg connection assembly 4, the damper 3 and the foot connection assembly 5. The damper 3 is a rotary damper 3 with a torque of 35 KGF, so as to ensure that a larger humanoid toy can achieve various postures such as standing, sideward, running, walking, etc., and increase the product attractiveness.
[0028] Refer to Figures 1 to 3 , an ankle joint structure, including a damper 3, a leg connection assembly 4 and a foot connection assembly 5. The damper 3 is arranged between the leg connection assembly 4 and the foot connection assembly 5. The leg connection assembly 4 is installed at one end of the lower leg close to the sole 2, and the foot connection assembly 5 is installed on one side of the sole 2 close to the lower leg. The leg connection assembly 4 has a first rotational degree of freedom 101, the damper 3 has a second rotational degree of freedom 102, and the foot connection assembly 5 has a third rotational degree of freedom 103. The first rotational degree of freedom 101, the second rotational degree of freedom 102 and the third rotational degree of freedom 103 are mutually orthogonal.
[0029] The ankle joint structure of the embodiment of the present application forms three mutually orthogonal rotational degrees of freedom through the leg connection component 4, the damper 3, and the foot connection component 5, enabling the sole 2 to rotate relative to the leg 1 at different angles, so that the humanoid toy can assume different postures. The relatively large-torque rotary damper 3 is used to bear the weight of the humanoid toy, ensuring the stability and safety of the ankle joint structure.
[0030] In order to ensure that the sole 2 can rotate up and down relative to the leg 1, in this embodiment, referring to Figure 1 , the damper 3 is a rotary damper 3.
[0031] It can be understood that with such a setting, the damper 3 is arranged perpendicular to the length direction of the leg 1, so that the rotation axis 31 of the damper 3 is perpendicular to the length direction of the leg 1. Thus, through the damper 3, the sole 2 can rotate up and down relative to the leg 1 with the rotation axis 31 of the damper 3 as the axis.
[0032] In order to ensure that the sole 2 can rotate left and right relative to the leg 1, in this embodiment, referring to Figure 3 , the leg connection component 4 includes a fixed sleeve 41 and a rotating shaft 45. The fixed sleeve 41 is fixed inside the calf, the rotating shaft 45 is movably arranged inside the fixed sleeve 41, the axial direction of the rotating shaft 45 is parallel to the length direction of the calf, retaining rings 46 are arranged at both ends of the connecting shaft 53, and the fixed sleeve 41 is sleeved on the rotating shaft 45 and is located between the two retaining rings 46.
[0033] It should be further noted that in order to ensure the stability of the leg connection component 4, the thickness of the rotating shaft 45, the thickness of the retaining ring 46, and the thickness of the fixed sleeve 41 are all relatively large, so that the fixed sleeve 41 and the rotating shaft 45 cannot be assembled by means such as press riveting. Therefore, the fixed sleeve 41 is designed to be composed of two half sleeves 42 on the left and right. The two half sleeves 42 are buckled on the two retaining rings 46 of the rotating shaft 45 from both sides, and the fixing pieces 43 on the outer walls of the two half sleeves 42 are fixed by the first bolt 61, thereby sleeving the fixed sleeve 41 on the rotating shaft 45; the fixing piece 43 can function to be positioned and clamped with the inside of the leg 1. The positioning groove 44 on the fixing piece 43 is positioned and clamped with the second bolt 62 for assembly on the leg 1, thereby fixing the fixed sleeve 41 and the leg 1 and ensuring stable rotation between the fixed sleeve 41 and the rotating shaft 45.
[0034] It can be understood that with such a setting, the axial direction of the rotating shaft 45 is parallel to the length direction of the leg 1, so that the sole 2 can rotate left and right relative to the leg 1 through the fixed sleeve 41 and the rotating shaft 45.
[0035] In order to realize the connection between the leg connection component 4 and the damper 3, in this embodiment, referring to Figure 3 , a first connection sleeve 47 is arranged at the lower end of the rotating shaft 45, and the first connection sleeve 47 is fixedly connected to the first rotating part 32 of the damper 3.
[0036] It can be understood that with such an arrangement, the first connecting sleeve 47 is sleeved on the first rotating part 32 of the damper 3, so that the leg connecting assembly 4 rotates together with the first rotating part 32 of the damper 3.
[0037] In order to realize the connection between the foot connecting assembly 5 and the damper 3, in this embodiment, referring to Figure 3 , the foot connecting assembly 5 includes a connecting seat 51 and a second connecting sleeve 54. The connecting seat 51 is fixed in the fixing groove 21 of the sole 2, the second connecting sleeve 54 is fixedly connected to the second rotating part 33 of the damper 3, and a connecting shaft 53 for rotatably connecting with the second connecting sleeve 54 is arranged on the connecting seat 51.
[0038] It can be understood that with such an arrangement, the second connecting sleeve 54 is sleeved on the second rotating part 33 of the damper 3, so that the foot connecting assembly 5 rotates together with the second rotating part 33 of the damper 3. The first rotating part 32 and the second rotating part 33 of the damper 3 are coaxially arranged, so that the foot connecting assembly 5 can rotate up and down relative to the leg connecting assembly 4 around the rotating shaft 31 of the damper 3.
[0039] In order to ensure that the sole 2 can turn inwards and outwards relative to the leg 1, in this embodiment, referring to Figure 2 and Figure 3 , a connecting hole 56 is arranged on the outer side of the second connecting sleeve 54, and the connecting shaft 53 is arranged in the connecting hole 56.
[0040] It can be understood that with such an arrangement, the axial direction of the connecting shaft 53 is the same as the length direction of the sole 2, so that the sole 2 can turn inwards or outwards relative to the leg 1.
[0041] In order to facilitate the adjustment of the angle between the sole 2 and the leg 1, in this embodiment, referring to Figure 2 , the rotating shaft 45, the connecting shaft 53 and the rotating shaft 31 of the damper 3 are perpendicular to each other.
[0042] It should be further noted that the first connecting sleeve 47 is arranged along the axial direction of the rotating shaft 45. The second connecting sleeve 54 is bent with a connecting part 55. The connecting hole 56 is arranged on the connecting part 55. The connecting part 55 is bent towards the first connecting sleeve 47, and the connecting shaft 53 is arranged in the connecting hole 56, so that the axial direction of the connecting shaft 53 and the axial direction of the rotating shaft 45 are in the same plane, ensuring stable force at the ankle joint.
[0043] It can be understood that with such an arrangement, the fact that the rotating shaft 45, the connecting shaft 53 and the rotating shaft 31 of the damper 3 are perpendicular to each other can facilitate the adjustment of the angle between the sole 2 and the leg 1, and at the same time is convenient for design and assembly, reducing production costs.
[0044] In order to ensure the stable connection between the damper 3 and the leg connection assembly 4 and the foot connection assembly 5, in this embodiment, referring to Figure 3 , on the outer walls of the first rotating part 32 and the second rotating part 33 of the damper 3, first positioning planes 34 are provided. On the inner walls of the first connecting sleeve 47 and the second connecting sleeve 54, second positioning planes 48 are provided. The second positioning plane 48 is adapted to the first positioning plane 34 to position the first rotating part 32 and the second rotating part 33 of the damper 3 and the first connecting sleeve 47 and the second connecting sleeve 54 respectively.
[0045] It should be further noted that first screw holes 35 are also provided on the respective first positioning planes 34 of the first rotating part 32 and the second rotating part 33. Second screw holes 49 are provided on the respective second positioning planes 48 of the first connecting sleeve 47 and the second connecting sleeve 54. A third bolt 63 is provided between the first screw hole 35 and the second screw hole 49, so as to fix the first rotating part 32 and the first connecting sleeve 47 and fix the second rotating part 33 and the second connecting sleeve 54.
[0046] It can be understood that with such a setting, through the planar contact between the first positioning plane 34 and the second positioning plane 48, slippage between the first rotating part 32 and the first connecting sleeve 47 and between the second rotating part 33 and the second connecting sleeve 54 is prevented, ensuring the stable connection between the damper 3 and the leg connection assembly 4 and the foot connection assembly 5.
[0047] In order to prevent excessive varus or valgus of the sole 2, in this embodiment, referring to Figure 3 , the sole 2 is provided with a limiting groove 22 communicating with the fixing groove 21. The trend of the limiting groove 22 is parallel to the length direction of the damper 3. The limiting groove 22 cooperates with both ends of the damper 3 to limit the rotation angle of the foot connection assembly 5.
[0048] It should be further noted that the shape of the connecting seat 51 matches that of the fixing groove 21, so as to position and snap the connecting seat 51 in the fixing groove 21 and fix it with two fourth bolts 64. Two mounting ears 52 are provided on the upper part of the connecting seat 51, and a connecting shaft 53 is arranged between the two mounting ears 52.
[0049] It can be understood that with such a setting, the damper 3 has a certain length, and the connecting shaft 53 is basically at the lowest point of the bottom of the limiting groove 22. When the damper 3 rotates with the second connecting sleeve 54 as the axis, after rotating a certain angle, the end of the damper 3 will abut against the bottom of the limiting groove 22, thereby preventing the damper 3 and the second connecting sleeve 54 from continuing to rotate, thus limiting the angles of the sole 2 relative to the leg 1 turning inward and turning outward.
[0050] The damper 3 in the embodiment of the present application is a damper 3 with a torque of 35 KGF, which can well bear the weight of the humanoid toy, ensuring the stability and safety of the ankle joint structure. Through the leg connection assembly 4, the damper 3, and the foot connection assembly 5, three mutually orthogonal rotational degrees of freedom are formed, enabling the sole 2 to rotate at different angles relative to the leg 1, so that the humanoid toy can assume different postures, ensuring that larger humanoid toys can achieve various postures such as standing, sideward, and running, thereby increasing the product attractiveness.
[0051] The embodiment of the present application also provides a humanoid toy, including the above-mentioned ankle joint structure. Installing the above-mentioned ankle joint structure between the sole 2 and the leg 1 of the humanoid toy enables the sole 2 to rotate up and down, left and right, and flip inward and outward relative to the leg 1. The damper 3 is a rotational damper 3 with a torque of 35 KGF, thus ensuring that larger humanoid toys can achieve various postures such as standing, sideward, and running, increasing the product attractiveness, and meeting the needs of different users.
[0052] The above does not impose any limitation on the technical scope of the present invention. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. An ankle joint structure, characterized in that: The invention comprises a damper, a leg connection assembly and a foot connection assembly, wherein the damper is arranged between the leg connection assembly and the foot connection assembly, the leg connection assembly is installed at one end of the calf close to the sole, and the foot connection assembly is installed at one side of the sole close to the calf, the leg connection assembly has a first rotational degree of freedom, the damper has a second rotational degree of freedom, and the foot connection assembly has a third rotational degree of freedom, and the first rotational degree of freedom, the second rotational degree of freedom, and the third rotational degree of freedom are orthogonal to each other.
2. The ankle joint structure according to claim 1, characterized in that: The damper is a rotary damper.
3. The ankle joint structure according to claim 1, characterized in that: The leg connection assembly includes a fixed sleeve and a rotating shaft. The fixed sleeve is fixed inside the calf. The rotating shaft is movably arranged in the fixed sleeve. The axial direction of the rotating shaft is parallel to the length direction of the calf. Securing rings are arranged at both ends of the rotating shaft. The fixed sleeve is arranged on the rotating shaft and is located between the two retaining rings.
4. The ankle joint structure according to claim 3, characterized in that: A first connecting sleeve is disposed at the lower end of the rotating shaft, and the first connecting sleeve is fixedly connected to the first rotating part of the damper.
5. The ankle joint structure according to claim 4, characterized in that: The foot connection assembly includes a connection seat and a second connection sleeve, the connection seat is fixed in a fixing groove of the sole, the second connection sleeve is fixedly connected to the second rotating part of the damper, and the connection seat is provided with a connection shaft rotatably connected to the second connection sleeve.
6. The ankle joint structure according to claim 5, characterized in that: A connecting hole is arranged on the outer side of the second connecting sleeve, and the connecting shaft passes through the connecting hole.
7. The ankle joint structure according to claim 5, characterized in that: The rotating shaft, the connecting shaft and the rotating shaft of the damper are orthogonal to each other.
8. The ankle joint structure according to claim 5, characterized in that: The first rotating part and the second rotating part of the damper are each provided with a first positioning plane on their outer walls, the first connecting sleeve and the second connecting sleeve are each provided with a second positioning plane on their inner walls, and the second positioning plane is adapted to the first positioning plane to respectively position the first rotating part and the second rotating part of the damper with the first connecting sleeve and the second connecting sleeve.
9. The ankle joint structure according to claim 5, characterized in that: The sole of the foot is provided with a limiting groove which is in communication with the fixing groove. The direction of the limiting groove is parallel to the length direction of the damper. The limiting groove cooperates with both ends of the damper to limit the rotation angle of the foot connection assembly.
10. A humanoid toy, characterized in that: The ankle joint structure comprises the ankle joint structure according to any one of claims 1 to 9.