Toy model leg joint structure

Abstract

The utility model discloses a toy model leg joint structure, which comprises a thigh part and a shank part, the thigh part is rotatably connected with the shank part through a connecting fitting I, the shank part is provided with a foot part, and the shank part and the foot part can rotate relatively. The thigh part comprises a first rotating assembly and a second rotating assembly, and the first rotating assembly is rotationally connected with the second rotating assembly; the first connecting fitting is provided with a first limiting assembly, the first limiting assembly is used for limiting the rotating angle of the first rotating assembly relative to the shank part, the second rotating assembly is provided with a second limiting assembly, and the second limiting assembly is used for limiting the rotating angle of the second rotating assembly relative to the first rotating assembly.

Description

Technical Field

[0001] The utility model belongs to the field of processing of joint structures, and particularly relates to a leg joint structure of a toy model. Background Technique

[0002] In order to achieve movements and postures similar to those of humans and animals, a joint structure (humanoid body) includes various joints and movable parts, and various postures can be achieved by using these mechanisms. In addition, among joint structures, there are joint structures that can be deformed into multiple forms. In this case, in addition to having movable mechanisms such as joints, there are also movable mechanisms for deformation. In order to perform deformation, it is necessary to enable the movable regions of each part to move beyond normal movements.

[0003] As disclosed in the patent document "CN 115350480 B" for "Joint Structure and Joint Structure Body", by releasing the first locking mechanism and the second locking mechanism, the fitting forming the large foot part and the fitting forming the movable shaft rotate 180 degrees in the direction of the small foot part of the joint structure and are folded into the small foot part.

[0004] In this patent, the entire large foot part fitting rotates 180° in the direction of the small foot part of the joint structure through the movable shaft fitting to realize the rotation of the thigh part relative to the calf part. The utility model provides another technical solution to enable relative rotation between the thigh parts to increase playability. Content of the Utility Model

[0005] The purpose of the utility model is to provide a leg joint structure of a toy model to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A leg joint structure of a toy model includes a thigh part and a calf part. The thigh part and the calf part are rotationally connected through a first connecting fitting. The calf part is provided with a foot, and the calf part and the foot can rotate relative to each other. The thigh part includes a first rotating assembly and a second rotating assembly, and the first rotating assembly and the second rotating assembly are rotationally connected;

[0008] The first connecting fitting is provided with a first limiting assembly for limiting the rotation angle of the first rotating assembly relative to the calf part. The first rotating assembly is provided with a second limiting assembly for limiting the rotation angle of the second rotating assembly relative to the first rotating assembly.

[0009] Further technical solution: The calf part includes Component One, and Component One is rotatably connected to the first connecting fitting. The first rotating assembly includes Component Two, and Component Two is rotatably connected to the first connecting fitting. The angle range for the rotation between Component One and Component Two is 0° - 120°.

[0010] Further technical solution: The first limiting assembly includes a first limiting block. A groove is formed on Component One, and the first limiting block can be inserted into the groove.

[0011] Further technical solution: The first limiting assembly includes a micro protrusion. Guide grooves are formed on Component One and the first connecting fitting. The guide grooves are arc-shaped guide grooves, and the micro protrusion is slidably connected to the guide grooves.

[0012] Further technical solution: The first rotating assembly includes Component Three, and Component Two is rotatably connected to Component Three. The angle range for the rotation between Component Two and Component Three is 0° - 60°.

[0013] Further technical solution: The second limiting assembly includes a second limiting block and a third limiting block. Component Two is provided with two resisting parts, and Component Three is provided with a ring. The second limiting block and the third limiting block are installed on the outer wall of the ring, and the second limiting block and the third limiting block can be in contact with the resisting parts.

[0014] Further technical solution: The thigh part is further provided with a decorative part. One end of the decorative part is rotatably connected to the first rotating assembly of the thigh part through a second connecting fitting, and the other end of the decorative part is rotatably connected to the calf part through a third connecting fitting.

[0015] Further technical solution: The thigh part rotates towards the space generated by the rotation and sliding of the decorative part.

[0016] Further technical solution: The third connecting fitting rotates with the calf part and slides in the direction of the rotation of the decorative part in a linked manner.

[0017] Advantages of the present utility model:

[0018] The present utility model provides that the thigh part includes a first rotating assembly and a second rotating assembly. The first rotating assembly and the second rotating assembly are rotatably connected, and the second rotating assembly is provided with a second limiting assembly to limit the angle range for the rotation of the second rotating assembly relative to the first rotating assembly. When the thigh part rotates relative to the calf part to a specified position, the second rotating assembly of the thigh part can still continue to rotate relative to the first rotating assembly, realizing multiple rotation modes and improving the playability of the leg joint structure of the toy model.

[0019] Other features and advantages of the present utility model will be described in detail in the following specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Vertical state diagram of the overall structure of the present utility model.

[0021] Figure 2 : Bending state diagram of the overall structure of the present utility model.

[0022] Figure 3 : Assembly schematic diagram of Component 1, Component 2, Component 3 and Connecting Fitting 1 of the present utility model.

[0023] Figure 4 : Process diagram of the conversion from the first state to the second state of the present utility model.

[0024] Figure 5 : Assembly schematic diagram of the decoration part, Connecting Fitting 3 and Connecting Fitting 4 of the present utility model.

[0025] Figure 6 : Schematic diagram of the 45° open state of the present utility model.

[0026] Figure 7 : Exploded view of the hidden foot and part of the second rotating assembly after the 45° open state of the present utility model.

[0027] Figure 8 : Schematic diagram of straight line 1 and straight line 2 of the present utility model.

[0028] Reference numerals: 100, leg joint structure of the toy model; 200, thigh part; 200a, first rotating assembly; 200b, second rotating assembly; 201, Component 2; 201a, through groove; 201b, coaxial hole; 202, Component 3; 202a, ring; 202b, second limiting block; 202c, third limiting block; 203, housing component; 204, hanging ring; 300, calf part; 301, Component 1; 302, groove; 400, Connecting Fitting 1; 401, first limiting block; 500, foot; 600, decoration part; 601, Component 4; 700, Connecting Fitting 2; 800, Connecting Fitting 3; 900, straight line 1; 1000, straight line 2. SPECIFIC IMPLEMENTATION MODE

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0030] Please refer to Figure 1-8 ;

[0031] Embodiment 1:

[0032] A leg joint structure of a toy model. First of all, it is worth noting that Figure 1 This is an example of the appearance structure of the leg joint structure 100 of the toy model in this embodiment. Figure 1 It shows the vertical state diagram of the leg joint structure 100 of the toy model, Figure 2 and the bent state diagram of the leg joint structure 100 of the toy model. In addition, the arrows in the up-down, left-right, and front-back directions indicate the orientation of the leg joint structure 100 of the toy model in the figure, and the same applies to other attached drawings; the leg joint structure 100 of the toy model is not limited to being applied to models similar to robots. The utility model patent can be applied to various models such as animals, and the leg joint structure 100 of the toy model is not limited to the left leg and the right leg; the leg joint structure 100 of the toy model in this embodiment includes a thigh part 200; a calf part 300 and a foot part 500. The thigh part 200, the calf part 300 and the foot part 500 are each assembled by a plurality of components. The thigh part 200 and the calf part 300 are rotatably connected by a connecting fitting one 400. The foot part 500 is connected to the calf part 300 in a manner that can be partially rotated. When the thigh part 200 and the calf part 300 are rotatably connected by a connecting fitting one 400, it is worth noting that the connecting fitting one 400 is rotatably connected to a component one 301 in the calf part 300, and the connecting fitting one 400 is also rotatably connected to a component two 201 in the thigh part 200. A first limiting component is provided on one side of the connecting fitting one 400 to limit the rotation angle of the thigh part 200 relative to the calf part 300. In this embodiment, the first limiting component includes a first limiting block 401. Correspondingly, a groove 302 for accommodating the first limiting block 401 is provided in the component one 301 of the calf part 300. When the component one 301 is kept vertically placed, when the component two 201 of the thigh part 200 rotates to the first limiting block 401 being clamped in the groove 302, the thigh part 200 rotates to the lowest position;

[0033] To further describe the amplitude of the rotation of the thigh portion 200 relative to the calf portion 300, the angle range of the rotation of the first member 301 and the second member 201 is 0° - 120°. Preferably, in this embodiment, the angle of rotation of the first member 301 and the second member 201 is 110°, so as to better adapt to the bending degree between the thigh and the calf when a human thigh bends; the thigh portion 200 includes a first rotation assembly 200a and a second rotation assembly 200b. The first rotation assembly 200a is rotationally connected to the second rotation assembly 200b through a third member 202 of the second rotation assembly 200b. While the first rotation assembly 200a of the thigh portion 200 rotates relative to the calf portion 300, the second rotation assembly 200b of the thigh portion 200 can continue to rotate relative to the first rotation assembly 200a, enabling the thigh portion 200 to have more rotation modes relative to the calf portion 300. Similarly, a second limiting assembly is provided on the third member 202 of the second rotation assembly 200b to limit the rotation angle of the second rotation assembly 200b relative to the first rotation assembly 200a. The angle range of the rotation connection between the second member 201 and the third member 202 is 0° - 60°. In this embodiment, the angle of the rotation connection between the second member 201 and the third member 202 is 45°.

[0034] Specifically, to better describe the leg joint structure 100 of the toy model in this embodiment, its vertical state is set as the first state, and its deformed bent state is set as the second state. When the leg joint structure 100 of the toy model in this embodiment is in the first state, it remains relatively fixed by the friction of each component. In some embodiments, in order to further increase the friction, the contact surface between the first connecting fitting 400 and the first component 301 of the calf part 300 is designed as a matte surface. In other embodiments, in order to more effectively achieve the preliminary fixation between the first connecting fitting 400 and the first component 301 of the calf part 300, micro elastic protrusions are provided on the first connecting fitting, and corresponding clamping holes are provided on the first component 301 of the calf part 300. The contact surfaces of other rotational connections adopt the same structure, which is not limited in this embodiment; when transforming from the first state to the second state, the operator can manually rotate the thigh part 200 and the second component 201 of the thigh part 200 relative to the first connecting fitting 400. At the same time, the first connecting fitting 400 rotates relative to the first component 301 of the calf part 300, and the first limiting block 401 of the first connecting fitting 400 rotates as the first connecting fitting 400 rotates. The first component 301 of the calf part 300 remains in place, and the groove 302 on the first component 301 remains in place, so that when the first limiting block 401 rotates to be engaged with the groove 302, the thigh part 200 rotates to the lowest position, that is, rotates to the second state; at the same time, when the first rotating assembly 200a of the thigh part 200 rotates to the second state, the second rotating assembly 200b also rotates relative to the first rotating assembly 200a. The third component 202 of the second rotating assembly 200b is provided with a ring 202a, and the second limiting assembly includes a second limiting block 202b located on the outer wall of the ring 202a. A third limiting block 202c is provided on one side of the ring 202a of the third component 202 of the second rotating assembly 200b, and a through groove 201a is correspondingly provided on the second component 201. Coaxial holes 201b are provided on the two side walls of the through groove 201a. The ring 202a can be placed in the through groove 201a, so that a linkage shaft (not shown in the figure) can pass through the ring 202a and the two coaxial holes 201b, thereby enabling the third component 202 of the second rotating assembly 200b to be rotationally connected to the second component 201. A thigh blocking portion is also correspondingly provided on the second component 201. The thigh blocking portion is used to limit the rotation amplitude of the ring 202a relative to the through groove 201a, thereby limiting the rotation amplitude of the third component 202 of the second rotating assembly 200b relative to the second component 201, and further limiting the rotation amplitude of the second rotating assembly 200b relative to the first rotating assembly 200a. It is worth noting that the operator can first keep the calf part 300 and the first rotating assembly 200a in place, rotate the second rotating assembly 200b to the lowest position, and then rotate the first rotating assembly 200a;It is also possible to keep the position of the calf part 300 stationary, first rotate the first rotating component 200a, and at the same time keep the positions of the first rotating component 200a and the second rotating component 200b stationary. When the first rotating component 200a rotates to the lowest position, that is, after the first limiting block 401 is engaged with the groove 302, then rotate the thigh relative component until the second limiting block 202b fits against the thigh resisting part and the third limiting block 202c fits against the third resisting part; it is also possible to keep the position of the calf part 300 fixed and rotate the first rotating component 200a and the second rotating component 200b to a specified position at the same time; this embodiment does not make any limitations on this.

[0035] In order to further improve the aesthetics and playability of the leg joint structure 100 of the toy model in this embodiment, the thigh part 200 of this embodiment is also provided with a decoration part 600. The decoration part 600 is composed of multiple components, and each accessory of the decoration part 600 works in conjunction. One end of the decoration part 600 is rotatably connected to the first rotating component 200a of the thigh part 200 through the connecting accessory two 700. Specifically, as Figure 5 shown, the outer shell part of the thigh part 200 is two shell components 203, which are buckled together. There is a recess between the two components to accommodate the core component two 201 of the thigh part 200. Each of the two shell components 203 is provided with a hanging ring 204. Correspondingly, the connecting accessory two 700 is provided with two rotating rings, and the two rotating rings and the two hanging rings 204 are respectively rotatably provided with rotating shafts (not shown in the figure), so that the two rotating rings are rotatably connected to the two hanging rings 204, so that the connecting accessory two 700 is rotatably connected to the shell component 203 of the thigh part 200, and further the connecting accessory two 700 is rotatably connected to the first rotating component 200a of the thigh part 200; the connecting accessory two 700 is rotatably connected to the connecting accessory three 800, and the connecting accessory three 800 is rotatably connected to the calf part 300; the decoration part 600 includes a component four 601, and the component four 601 is the propulsion part. The component four 601 is engaged with the connecting accessory two 700. In this embodiment, the engagement method between the component four 601 and the connecting accessory two 700 is not limited. It can be the cooperation of an elastic protrusion and a clamping groove 302. When the leg joint structure 100 of the toy model changes from the first state to the second state, the thigh part 200 rotates towards the space generated by the rotation and sliding of the decoration part 600. At the same time, the connecting accessory three 800 rotates with the calf part 300, and the connecting accessory three 800 slides in the direction of rotation of the decoration part 600 in a linked manner.

[0036] Specifically, when the leg joint structure 100 of the toy model turns from the first state to the second state, the thigh part 200, the decoration part 600, and the connecting fitting three 800 all slide in the same direction; that is, when the thigh part 200 rotates, the outer shell member 203 of the thigh part 200 rotates accordingly. Correspondingly, the connecting fitting two 700 rotates and slides downward at the rotational connection with the thigh part 200, causing the connecting fitting two 700 to move downward, and further causing the connecting fitting three 800 to move downward, thereby moving the decoration part 600 downward, so that the thigh part 200 can rotate into the space generated by the rotation and sliding of the decoration part 600.

[0037] Next, with reference to Figure 8 Describe the rotational movements of each connecting fitting and component that are linked to the rotational movement of the first rotating component 200a when the leg joint structure 100 of the toy model in this embodiment is transformed from the first state to the second state; in the first state, a straight line one 900 formed by the connecting fitting one 400 between the thigh part 200 and the calf part 300 and the connecting fitting two 700 between the decoration part 600 and the thigh part 200 is inclined, and is inclined upward compared to the horizontal line; after being transformed from the first state to the second state, in the second state, a straight line two 1000 formed by the connecting fitting one 400 between the thigh part 200 and the calf part 300 and the connecting fitting two 700 between the decoration part 600 and the thigh part 200 is inclined downward compared to the horizontal line.

[0038] Example 2:

[0039] The structure of this embodiment is mostly the same as that of Embodiment 1,

[0040] The difference between the structure of this embodiment and that of Embodiment 1 is:

[0041] The first limiting component includes a micro protrusion (not shown in the figure), and a guiding groove (not shown in the figure) is provided on the component one 301 and the connecting fitting one 400. The guiding groove is an arc-shaped guiding groove, and the path of the arc-shaped guiding groove is the same as the path of the rotation of the thigh part 200. The micro protrusion is slidably connected to the guiding groove.

[0042] Specifically, when an operator applies an external force to rotate the thigh part 200 relative to the calf part 300, the micro protrusion can slide along the path of the guiding groove and slide to the groove wall of the guiding groove, that is, the thigh part 200 slides relative to the calf part 300 to a specified position.

[0043] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A leg joint structure of a toy model, comprising a thigh part (200) and a calf part (300), characterized in that, The thigh part (200) is rotatably connected to the calf part (300) through a first connecting fitting (400). The calf part (300) is provided with a foot part (500), and the calf part (300) and the foot part (500) can rotate relative to each other. The thigh part (200) includes a first rotating assembly (200a) and a second rotating assembly (200b), and the first rotating assembly (200a) is rotatably connected to the second rotating assembly (200b). The first connecting fitting (400) is provided with a first limiting assembly for limiting the rotation angle of the first rotating assembly (200a) relative to the calf part (300). The second rotating assembly (200b) is provided with a second limiting assembly for limiting the rotation angle of the second rotating assembly (200b) relative to the first rotating assembly (200a).

2. The leg joint structure of a toy model according to claim 1, characterized in that, The calf part (300) includes a first component (301), and the first component (301) is rotatably connected to the first connecting fitting (400). The first rotating assembly (200a) includes a second component (201), and the second component (201) is rotatably connected to the first connecting fitting (400). The rotation angle range between the first component (301) and the second component (201) is 0° - 120°.

3. The leg joint structure of a toy model according to claim 2, characterized in that The first limiting assembly includes a first limiting block (401). The first component (301) is provided with a groove (302), and the first limiting block (401) can be inserted into the groove (302).

4. The leg joint structure of a toy model according to claim 2, characterized in that, The first limiting assembly includes a micro protrusion. Arc-shaped guide grooves are provided on the first component (301) and the first connecting fitting (400), and the micro protrusion is slidably connected to the guide grooves.

5. A leg joint structure of a toy model according to claim 3 or 4, characterized in that, The first rotating assembly (200a) includes a third component (202), and the second component (201) is rotatably connected to the third component (202). The rotation angle range between the second component (201) and the third component (202) is 0° - 60°.

6. The leg joint structure of a toy model according to claim 5, characterized in that The second limiting assembly includes a second limiting block (202b) and a third limiting block (202c). The second component (201) is provided with two resisting parts, and the third component (202) is provided with a ring (202a). The second limiting block (202b) and the third limiting block (202c) are installed on the outer wall of the ring (202a), and the second limiting block (202b) and the third limiting block (202c) can be in contact with the resisting parts.

7. The leg joint structure of a toy model according to claim 1, characterized in that, The thigh part (200) is further provided with a decorative part (600). One end of the decorative part (600) is rotatably connected to the first rotating assembly (200a) of the thigh part (200) through a second connecting fitting (700), and the other end of the decorative part (600) is rotatably connected to the calf part (300) through a third connecting fitting (800).

8. A leg joint structure of a toy model according to claim 7, characterized in that, The thigh part (200) rotates towards the space generated by the rotation and sliding of the decorative part (600).

9. The leg joint structure of a toy model according to claim 7, characterized in that, The third connecting fitting (800) rotates with respect to the calf portion (300), and the third connecting fitting (800) slides in the direction of rotation of the decorative portion (600) in a linked manner.

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