Metal joint for robot model toy and connecting structure of metal joint

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By introducing the coordination between the limiting part and the clamping part and the friction between the friction parts in the metal joints of the robot model toy, the problems of insufficient joint strength and insufficient fine adjustment ability in the prior art are solved, and small-angle rotation and hovering are achieved , improves the experientiality of the toys.

CN222517706UActive Publication Date: 2025-02-25DONGGUAN ZAOXIAOWU ELECTRONIC TECHNOLOGY CO LTD

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Patent Information

Application Number: CN202421023435.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Priority Date: 2024-02-01
Filing Date: 2024-05-11
Publication Date: 2025-02-25
Estimated Expiration: 2034-05-11

AI Technical Summary

Technical Problem

The joints of existing robot model toys are not strong enough to be damaged due to the use of plastic materials, and cannot be finely adjusted, which has the problem of poor experience.

Method used

A metal joint for robot model toys is designed, including joint connections, rotating parts and friction parts. Through the coordination between the limiting part and the clamping part and the friction between the friction part and the rotating part, the fine limit of the rotating part is achieved. Bit.

Benefits of technology

This design improves the limiting ability of the joints, allowing robot model toys to achieve small angle rotation and hovering, improving the experientiality of the toys.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a metal joint for a robot model toy and a connecting structure of the metal joint. The metal joint comprises a joint connecting piece, a rotating piece and a friction piece, the rotating piece is rotationally connected with the joint connecting piece; a limiting part is arranged on the joint connecting piece, a clamping part is arranged on the rotating piece, and the rotating angle of the rotating piece is limited through matching of the limiting part and the clamping part; the friction piece is arranged on the joint connecting piece and makes contact with the rotating piece. According to the joint connecting piece, the friction piece is arranged in the joint connecting piece, rotation of the rotating piece is limited through cooperation of the friction piece and the rotating piece, meanwhile, rotation of the rotating piece is limited through cooperation of the clamping part and the limiting part between the rotating piece and the joint connecting piece, and the limiting capacity is good; therefore, the robot model toy can rotate and hover at a small angle by adopting a small joint, and the experience of the robot model toy is greatly improved.

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Description

Technical Field

[0001] The utility model relates to the field of toys, and more specifically to a metal joint used for a robot model toy and a connection structure thereof. Background Art

[0002] As robot model toys become more and more humanoid, they can not only display various postures through the movement of the body skeleton, but can also be assembled with a variety of weapon accessories for display, and their scalability is becoming higher and higher.

[0003] Robot model toys are usually assembled from multiple scattered joints. Traditional robot model toys are connected by plastic joints, but the strength of plastic joints is not high and they are easily damaged, which affects the experience of robot model toys. For this reason, some robot model toys have begun to use metal joints for assembly to enhance the strength of robot model toys.

[0004] The joints of existing robot model toys can achieve a large range of rotation, but due to the small connecting joints, many robot model joints cannot be finely adjusted, which has certain limitations and a poor user experience. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a metal joint and a connection structure thereof for a robot model toy in view of the above-mentioned defects of the prior art.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] Provided is a metal joint for a robot model toy, comprising a joint connecting member, a rotating member and a friction member; the rotating member is rotatably connected to the joint connecting member; a limiting portion is provided on the joint connecting member, and a clamping portion is provided on the rotating member, and the rotation angle of the rotating member is limited by the cooperation between the limiting portion and the clamping portion; the friction member is arranged on the joint connecting member, and the friction member is in contact with the rotating member.

[0008] Furthermore, the joint connecting member includes a first connecting base; the rotating member includes an annular connecting rod rotatably connected to the first connecting base; the friction member includes a first friction block embedded in the first connecting base; the annular surface of the annular connecting rod contacts the surface of the first friction block.

[0009] Further, the limiting portion is a first limiting tooth arranged on the first connection base; the clamping portion is a plurality of first limiting tooth grooves arranged on the annular surface; and the first limiting tooth is arranged in any one of the first limiting tooth grooves.

[0010] Furthermore, the first connecting base is provided with a first mounting groove for mounting the annular connecting rod, a groove for mounting the first friction block, and a first opening arranged on the surface of the first connecting base; the groove is located in the first mounting groove, and the first limiting tooth is arranged in the first opening.

[0011] Furthermore, the first mounting groove is provided with a regular hexagonal fixing column and a rotating seat sleeved on the outside of the regular hexagonal fixing column; the outer surface of the rotating seat is provided with a multi-step structure; the annular connecting rod is provided with an inner hole matching the multi-step structure; the rotating seat and the annular connecting rod are connected by bolts.

[0012] Furthermore, the joint connecting member includes a second connecting base; the rotating member includes a spherical connecting rod rotatably connected to the second connecting base; the friction member includes a second friction block embedded in the second connecting base; the spherical surface of the spherical connecting rod contacts the surface of the second friction block.

[0013] Further, the engaging portion is a second limiting tooth disposed on the second connection base; the limiting portion is a plurality of second limiting tooth grooves disposed on the spherical surface; and the second limiting tooth is disposed in any one of the second limiting tooth grooves.

[0014] Furthermore, the second connecting base is provided with a second mounting groove and a through hole connected to the second mounting groove; the surface of the second mounting groove is provided with a second opening; the ball head of the spherical connecting rod is arranged in the second mounting groove, and the rod body of the spherical connecting rod passes through the second opening; the second limiting tooth is arranged at the second opening; and the second friction block is arranged in the through hole.

[0015] Furthermore, the friction member is made of nylon.

[0016] The present application provides a metal connection structure for a robot model toy, comprising a connecting rod and also comprising a metal joint as described in any one of the above.

[0017] The beneficial effect of the utility model is that: the present application sets a friction part in the joint connecting part, and uses the cooperation between the friction part and the rotating part to limit the rotation of the rotating part. At the same time, the rotation of the rotating part is limited by the cooperation between the clamping part and the limiting part between the rotating part and the joint connecting part. The limiting ability is good, so that the robot model toy can achieve small-angle rotation and hovering with smaller joints, which greatly improves the experience of the robot model toy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0019] Figure 1 This is a schematic structural diagram of a metal connection structure for a robot model toy according to a third embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a metal joint for a robot model toy according to the first embodiment of the utility model. Figure 1 ;

[0021] Figure 3 This is a schematic diagram of the structure of a metal joint for a robot model toy according to the first embodiment of the utility model. Figure 2 ;

[0022] Figure 4 for Figure 3 Schematic cross-sectional view at AA in the middle;

[0023] Figure 5 This is a schematic structural diagram of the first connecting base of the first embodiment of the utility model;

[0024] Figure 6 This is a schematic structural diagram of the annular connecting rod of the first embodiment of the utility model;

[0025] Figure 7 This is a schematic structural diagram of a rotating seat according to Embodiment 1 of the present utility model;

[0026] Figure 8 This is a schematic structural diagram of a regular hexagonal fixing column according to Embodiment 1 of the present utility model;

[0027] Fig. 9 This is a schematic diagram of the structure of a metal joint for a robot model toy according to the second embodiment of the utility model. Figure 1 ;

[0028] Fig.10 This is a schematic diagram of the structure of a metal joint for a robot model toy according to the second embodiment of the utility model. Figure 2 ;

[0029] Fig.11 for Figure 8 A schematic cross-sectional view of the middle BB;

[0030] Fig.12 This is a schematic structural diagram of a spherical connecting rod according to the second embodiment of the utility model;

[0031] Fig.13 It is a structural schematic diagram of the second connecting base of the second embodiment of the utility model.

[0032] In the figure, 1, annular metal joint; 2, spherical metal joint; 3, connecting rod; 11, first connecting base; 12, annular connecting rod; 13, first friction block; 14, rotating seat; 15, regular hexagonal fixing column; 16, bolt; 21, second connecting base; 22, spherical connecting rod; 23, second friction block; 111, first limiting tooth; 112, first mounting groove; 113, groove; 114, first opening; 121, first limiting tooth groove; 122, inner hole; 141, fixing hole; 211, second limiting tooth; 212, second mounting groove; 213, through hole; 214, second opening; 221, second limiting tooth groove. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0034] Embodiment 1

[0035] The utility model embodiment is as follows Figures 2 to 8 As shown, a metal joint for a robot model toy is provided, comprising a joint connecting member, a rotating member and a friction member; the rotating member is rotatably connected to the joint connecting member; a limiting portion is provided on the joint connecting member, and a clamping portion is provided on the rotating member, and the rotation angle of the rotating member is limited by the cooperation between the limiting portion and the clamping portion; the friction member is arranged on the joint connecting member, and the friction member is in contact with the rotating member.

[0036] The joint connector is used to connect other joints of the robot model toy. The rotating part can rotate relative to the joint connector, and a limiting part is provided on the joint connector, and a clamping part is provided on the rotating part. The rotation angle of the rotating part can be limited by the cooperation between the limiting part and the clamping part. However, since the joints of the robot model toy are very small, if only the cooperation between the limiting part and the clamping part is adopted, although a smaller angle of rotation switching can be achieved, the limiting ability is weak and it cannot hover at the adjusted angle. Therefore, it is necessary to limit the rotating part with the help of the friction cooperation between the friction part and the rotating part, thereby improving the limiting ability of the joint, so that smaller joints can also achieve small angle switching and hovering without increasing the volume of the joint, which greatly improves the experience of the robot model toy. Specifically, the switching angle of the rotating part can be 3°~5° and hovering can be achieved.

[0037] The present application sets a friction part in the joint connecting part, and uses the cooperation between the friction part and the rotating part to limit the rotation of the rotating part. At the same time, the rotation of the rotating part is limited by the cooperation between the clamping part and the limiting part between the rotating part and the joint connecting part. The limiting ability is good, so that the robot model toy can achieve small-angle rotation and hovering with smaller joints, which greatly improves the experience of the robot model toy.

[0038] Furthermore, the joint connecting member includes a first connecting base 11; the rotating member includes an annular connecting rod 12 rotatably connected to the first connecting base 11; the friction member includes a first friction block 13 embedded in the first connecting base 11; the annular surface of the annular connecting rod 12 contacts the surface of the first friction block 13.

[0039] Specifically, the annular connecting rod 12 is composed of an annular portion and a rod body portion, wherein the annular portion is sleeved in the first connecting base 11, the rod body portion passes through the first connecting base 11, and a connecting thread is provided on the surface of the rod body portion. The first friction block 13 is built into the first connecting base 11, and its surface is adapted to the annular surface of the annular connecting rod 12. During the entire rotation process, the annular connecting rod 12 always maintains friction contact with the first friction block 13.

[0040] Further, the limiting portion is a first limiting tooth 111 arranged on the first connection base 11 ; the clamping portion is a plurality of first limiting tooth grooves 121 arranged on the annular surface; and the first limiting tooth 111 is arranged in any one of the first limiting tooth grooves 121 .

[0041] Specifically, the first limiting tooth groove 121 is located at the edge of the annular surface, and the first friction block 13 occupies most of the area of the annular surface. Whenever the annular connecting rod 12 rotates, the first limiting tooth 111 will enter from one first limiting tooth groove 121 to another first limiting tooth groove 121. Since the first limiting tooth 111 and the first limiting tooth groove 121 are both made of metal, this process will emit a "click" sound, providing rotation feedback to the user. The interval angle of each first limiting tooth groove 121 is 3° to 5°. By utilizing the cooperation of the first limiting tooth 111 and the first limiting tooth groove 121, and the first friction block 13 to frictionally limit the annular connecting rod 12, the annular connecting rod 12 can be rotated at a very small angle and hover, providing rotation feedback to the user during rotation, greatly improving the experience of the robot model toy.

[0042] Furthermore, the first connecting base 11 is provided with a first mounting groove 112 for mounting the annular connecting rod 12, a groove 113 for mounting the first friction block 13, and a first opening 114 arranged on the surface of the first connecting base 11; the groove 113 is located in the first mounting groove 112, and the first limiting tooth 111 is arranged in the first opening 114.

[0043] Specifically, the first connection base 11 is provided with a connection end, and the connection end is provided with an internal thread. The connection end is connected to the groove 113. The first friction block 13 is arranged in the groove 113. After the annular connecting rod 12 is installed in the first installation groove 112, it supports the first friction block 13 to prevent it from falling off.

[0044] Furthermore, a regular hexagonal fixing column 15 and a rotating seat 14 sleeved on the outside of the regular hexagonal fixing column 15 are provided in the first mounting groove 112; a multi-step structure is provided on the outer surface of the rotating seat 14; an inner hole 122 matching the multi-step structure is provided in the annular connecting rod 12; the rotating seat 14 and the annular connecting rod 12 are connected by bolts 16.

[0045] Specifically, both ends of the regular hexagonal fixed column 15 pass through the first connection base 11 and are clamped on the first connection base 11. A fixing hole 141 matching with the regular hexagonal fixed column 15 is provided on the inner side of the rotating seat 14, and the annular connecting rod 12 is sleeved on the outer side of the rotating seat 14. When the annular connecting rod 12 rotates, the rotating seat 14 and the regular hexagonal fixed column 15 will not rotate together with the annular connecting rod 12. The outer surface of the rotating seat 14 has a multi-step structure, and the annular connecting rod 12 is provided with an inner hole 122 matching with the multi-step structure. When rotating, the outer surface of the rotating seat 14 and the inner hole 122 of the annular connecting rod 12 are rubbed by the multi-step structure. Compared with the traditional stepless structure, the friction area between the two is increased, so that the friction retention is better. A threaded hole is provided inside the regular hexagonal fixing column 15, and there are two bolts 16, which are arranged at both ends of the threaded hole. The degree of fit between the rotating seat 14 and the annular connecting rod 12 is adjusted by the tightening degree of the bolts 16 on both sides, so that the user can adjust the friction force between the outer surface of the rotating seat 14 and the inner hole 122 of the annular connecting rod 12.

[0046] Embodiment 2

[0047] The second embodiment of the utility model is as follows Figures 9 to 13 As shown, a metal joint for a robot model toy comprises a joint connecting member, a rotating member and a friction member; the rotating member is rotatably connected to the joint connecting member; a limiting portion is provided on the joint connecting member, and a clamping portion is provided on the rotating member, and the rotation angle of the rotating member is limited by the cooperation between the limiting portion and the clamping portion; the friction member is arranged on the joint connecting member, and the friction member is in contact with the rotating member.

[0048] Furthermore, the joint connecting member includes a second connecting base 21; the rotating member includes a spherical connecting rod 22 rotatably connected to the second connecting base 21; the friction member includes a second friction block 23 embedded in the second connecting base 21; the spherical surface of the spherical connecting rod 22 contacts the surface of the second friction block 23.

[0049] Specifically, the spherical connecting rod 22 is composed of a ball head part and a rod body part, the ball head part is arranged in the second connecting base 21, and its spherical surface is in frictional contact with the second friction block 23. The rod body part passes through the second connecting base 21, and a connecting thread is arranged on the surface.

[0050] Further, the engaging portion is a second limiting tooth 211 arranged on the second connection base 21 ; the limiting portion is a plurality of second limiting tooth grooves 221 arranged on the spherical surface; and the second limiting tooth 211 is arranged in any one of the second limiting tooth grooves 221 .

[0051] Specifically, the second limiting tooth groove 221 is arranged on the spherical surface of the spherical connecting rod 22, and the second limiting tooth 211 is arranged on the second connecting base 21. When the spherical connecting rod 22 rotates, the second limiting tooth 211 will enter another second limiting tooth groove 221 from one second limiting tooth groove 221. Since the second limiting tooth 211 and the second limiting tooth groove 221 are both made of metal, this process will emit a "click-click-click" sound, providing rotation feedback to the user. The interval angle of each second limiting tooth groove 221 is 3° to 5°. By utilizing the cooperation of the second limiting tooth 211 and the second limiting tooth groove 221, and the second friction block 23 to frictionally limit the annular connecting rod 12, the spherical connecting rod 22 can be rotated at a very small angle and hover, providing rotation feedback to the user during rotation, greatly improving the experience of the robot model toy.

[0052] Furthermore, a second mounting groove 212 and a through hole 213 connected to the second mounting groove 212 are provided in the second connecting base 21; a second opening 214 is provided on the surface of the second mounting groove 212; the ball head of the spherical connecting rod 22 is arranged in the second mounting groove 212, and the rod body of the spherical connecting rod 22 passes through the second opening 214; the second limiting tooth 211 is arranged at the second opening 214; and the second friction block 23 is arranged in the through hole 213.

[0053] Specifically, a threaded sleeve for connecting with other parts of the robot model toy is provided in the second opening 214. When installing the spherical connecting rod 22, the rod body of the spherical connecting rod 22 is inserted through the through hole 213 until the ball head enters the second installation groove 212, and the rod body is passed out of the second opening 214. Then, the second friction block 23 is installed, and the threaded sleeve is rotated and installed into the through hole 213 until it supports the second friction block 23. The width of the second opening 214 is adapted to the rod body of the spherical connecting rod 22, so that the spherical connecting rod 22 can only rotate around the second connection base 21 along the direction of the second opening 214, and cannot be universally rotated, so as to prevent the second limit tooth 211 from being separated from the second limit tooth groove 221.

[0054] The spherical connecting rod 22 can rotate by itself. Compared with the annular connecting rod 12 which needs to rotate with the help of the rotating seat 14, the joint using the spherical connecting rod 22 can be made smaller.

[0055] In the above-mentioned first and second embodiments, the first friction block 13 and the second friction block 23 are both made of nylon. By utilizing the pulling property of nylon, when the annular connecting rod 12 or the spherical connecting rod 22 rotates forward, due to friction contact, the first friction block 13 or the second friction block 23 will be pulled, generating a certain resistance feeling; when the annular connecting rod 12 or the spherical connecting rod 22 reverses, the first friction block 13 or the second friction block 23 is pulled and reset, and the annular connecting rod 12 or the spherical connecting rod 22 can be easily reversed. Among them, the metal material is stainless steel or iron.

[0056] Embodiment 3

[0057] The third embodiment of the utility model is as follows Figure 1 As shown, a metal connection structure for a robot model toy is provided, comprising a connecting rod 3 and a metal joint as described above.

[0058] Among them, the metal joint of the first embodiment is set as an annular metal joint 1, and the metal joint of the second embodiment is set as a spherical metal joint 2, and the connecting rod 3 can be used to connect the annular metal joint and the spherical metal joint 2. Specifically, the rod body part of the annular connecting rod 12 is provided with a connecting thread, and the rod body part of the spherical connecting rod 22 is also provided with the same connecting thread. One end of the connecting rod 3 is threadedly connected to the rod body part of the spherical connecting rod 22, and the other end is threadedly connected to the rod body part of the spherical connecting rod 22, connecting two joints of different structures into one body, forming a metal connection structure, which is used to connect with other parts of the robot model toy, and has good versatility.

[0059] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A metal joint for a robot model toy, characterized in that: It includes a joint connecting part, a rotating part and a friction part; the rotating part is rotatably connected to the joint connecting part; a limiting part is provided on the joint connecting part, and a clamping part is provided on the rotating part, and the rotation angle of the rotating part is limited by the cooperation between the limiting part and the clamping part; the friction part is arranged on the joint connecting part, and the friction part is in contact with the rotating part.

2. The metal joint for a robot model toy according to claim 1, characterized in that: The joint connecting member includes a first connecting base; the rotating member includes an annular connecting rod rotatably connected to the first connecting base; the friction member includes a first friction block embedded in the first connecting base; the annular surface of the annular connecting rod contacts the surface of the first friction block.

3. The metal joint for a robot model toy according to claim 2, characterized in that: The limiting portion is a first limiting tooth arranged on the first connection base; the clamping portion is a plurality of first limiting tooth grooves arranged on the annular surface; the first limiting tooth is arranged in any one of the first limiting tooth grooves.

4. The metal joint for a robot model toy according to claim 3, characterized in that: The first connecting base is provided with a first mounting groove for mounting the annular connecting rod, a groove for mounting the first friction block, and a first opening arranged on the surface of the first connecting base; the groove is located in the first mounting groove, and the first limiting tooth is arranged in the first opening.

5. The metal joint for a robot model toy according to claim 4, characterized in that: The first mounting groove is provided with a regular hexagonal fixing column and a rotating seat sleeved on the outside of the regular hexagonal fixing column; the outer surface of the rotating seat is provided with a multi-step structure; the annular connecting rod is provided with an inner hole matching the multi-step structure; the rotating seat and the annular connecting rod are connected by bolts.

6. The metal joint for a robot model toy according to claim 2, characterized in that: The joint connecting member includes a second connecting base; the rotating member includes a spherical connecting rod rotatably connected to the second connecting base; the friction member includes a second friction block embedded in the second connecting base; the spherical surface of the spherical connecting rod contacts the surface of the second friction block.

7. The metal joint for a robot model toy according to claim 6, characterized in that: The clamping portion is a second limiting tooth arranged on the second connection base; the limiting portion is a plurality of second limiting tooth grooves arranged on the spherical surface; the second limiting tooth is arranged in any one of the second limiting tooth grooves.

8. The metal joint for a robot model toy according to claim 7, characterized in that: The second connecting base is provided with a second mounting groove and a through hole connected to the second mounting groove; the surface of the second mounting groove is provided with a second opening; the ball head of the spherical connecting rod is arranged in the second mounting groove, and the rod body of the spherical connecting rod passes through the second opening; the second limiting tooth is arranged at the second opening; and the second friction block is arranged in the through hole.

9. The metal joint for a robot model toy according to claim 1, characterized in that: The friction piece is made of nylon.

10. A metal connection structure for a robot model toy, comprising a connecting rod, characterized in that: Also included is a metal joint as described in any one of claims 1-9.