CN217220167U

CN217220167U - Joint connecting piece

Info

Publication number: CN217220167U
Application number: CN202220079632.1U
Authority: CN
Inventors: 申浩宇
Original assignee: Shanghai Standard Entertainment Culture And Creativity Co ltd
Current assignee: Shanghai Standard Entertainment Culture And Creativity Co ltd
Priority date: 2022-01-12
Filing date: 2022-01-12
Publication date: 2022-08-19
Anticipated expiration: 2032-01-12

Abstract

The utility model discloses a joint connecting piece, including first connecting portion and the second connecting portion that link together, be used for connecting first limb portion and second limb portion correspondingly, wherein: the second connecting part is provided with at least one occlusal surface, and a first rotating axis X1 which rotates relative to the second limb part is arranged on the occlusal surface; at least one first engaging structure arranged on the occlusal surface and around the first rotation axis X1 for engaging with at least one second engaging structure arranged on the side wall of the assembling groove arranged on the second limb part so as to maintain a certain posture between the joint connector and the second limb part when not being affected by external force; there is a second axis of rotation X2 through the second connection when rotated relative to the second limb portion. Compared with the prior art, the utility model discloses can realize the angular adjustment of joint connection department and keep certain posture to have simple structure, flexible operation's characteristics.

Description

Joint connecting piece

Technical Field

The utility model belongs to posture adjustable toy field specifically is a joint connecting piece.

Background

Most of the prior doll-shaped toys are designed and processed to maintain a fixed posture, and some toys have been added with simple movable joints in order to adjust the posture and form of the toys, for example:

CN202446800U discloses a toy joint, which realizes a larger rotation angle and a larger range of motion.

CN213853067U discloses a human body doll articulation joint, which adopts a connection convex column and a connection part structure to realize the limitation of rotation angle.

Toys such as dolls have a plurality of joints, and the prior art generally only can rotate and adjust the angle of some joints, but cannot maintain a specific posture after adjustment, and therefore, an articulated structure capable of maintaining the adjusted angle is required.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the utility model aims to provide a joint connecting piece.

The utility model provides a technical scheme that its technical problem adopted is:

an articulating connector comprising first and second connecting portions connected together for connecting first and second limb portions respectively, wherein:

the second connecting part is provided with at least one occlusal surface, and a first rotating axis X1 which rotates relative to the second limb part is arranged on the occlusal surface; at least one first engaging structure arranged on the occlusal surface and around the first rotation axis X1 for engaging with at least one second engaging structure arranged on the side wall of the assembling groove arranged on the second limb part so as to maintain a certain posture between the joint connector and the second limb part when not being affected by external force;

a second rotation axis X2 relative to the second limb part when passing through the second connecting part;

at least one of the second connecting part and the second limb part can be moderately and elastically deformed so as to allow the second connecting part to be arranged in the assembling groove of the second limb part or to enable the joint connecting piece to rotate relative to the second limb part; wherein:

the number of the first meshing structures is the same as that of the second meshing structures, the number of the first meshing structures is larger than 1, and the spacing angles beta between every two adjacent first meshing structures or between every two adjacent second meshing structures are the same; or,

the number of the first engaging structures is different from the number of the second engaging structures, and the spacing angle β between two adjacent first or second engaging structures and the number of the first or second engaging structures satisfy geometric constraints that allow different amounts of unit rotation in different directions.

Preferably, one of the first engagement structure and the second engagement structure is a protrusion, and the other is a groove.

Preferably, the side of the protruding portion is an arc-shaped surface, and the side wall of the groove is an arc-shaped surface matched with the protruding portion.

Compared with the prior art, the beneficial effects of the utility model mainly include:

1. the angle adjustment of the joint connection part can be realized and a certain posture can be kept.

2. The structure is simple, the rotation step length can be set as required, and the joint posture can be adjusted more flexibly.

3. The engaging surface between the second connecting part and the side wall of the assembling groove of the limb part is an arc-shaped surface, so that the rotation and the alignment are easier to realize. The rest of the advantages can also be seen in the details of the examples.

Drawings

FIG. 1 is a schematic isometric view of an embodiment of an articulating component.

Fig. 2 is a front view of fig. 1.

Figure 3 is a perspective view of an embodiment of a limb portion from the axial side, showing the shaft disposed on the inner wall of the fitting groove.

Figure 4 is a schematic representation of the first connection portion of the articulating component of the embodiment shown assembled with a limb portion in cross-section.

Figure 5 is a schematic view of the first connection portion of figure 4 rotated at an angle relative to the limb portion.

Figure 6 is a schematic cross-sectional view of a limb portion according to an embodiment.

Fig. 7 is a partial schematic view of a convex portion on the first connecting portion in the embodiment.

Description of the figure numbers:

10. the joint connecting piece comprises 11 parts of a joint connecting piece, 12 parts of a second connecting piece, 120 parts of an occlusal surface, 121 parts of a convex part, 1210 parts of a lateral surface of the convex part and 122 parts of a shaft hole.

20. Limb portion, 21, assembly slot, 210, side wall, 211, groove.

30. A shaft.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments.

Referring to fig. 1 and 2, the joint connector 10 of the present embodiment includes a first connecting portion 11 and a second connecting portion 12.

The first connection portion 11 is a spherical or near-spherical end portion for connection to a limb portion. Correspondingly, the limb portion is provided with a connecting groove which is matched with the first connecting portion 11, so that the rotary connection of the connecting portion can be realized.

The second connecting portion 12 is a generally disc-shaped end portion for connection to another limb portion. The second connecting portion 12 is provided with two front and back mutually parallel engaging surfaces 120 perpendicular to the first rotation axis X1, or at least one engaging surface 120 perpendicular to the first rotation axis X1. On each of the engagement surfaces 120, a plurality of protrusions 121 are provided around the first rotation axis X1. Adjacent two of the protrusions 121 on each occlusal surface 120 are spaced apart by an angle β.

Referring to fig. 3, the limb portion 20 is correspondingly provided with a fitting groove 21 for fitting with the second connecting portion 12. The side wall 210 of the assembly groove 21 is provided with a plurality of grooves 211 matched with the plurality of protrusions 121 on the front and rear mating surfaces 120 of the second connecting portion 12.

The protrusion 121 protrudes to a lesser height relative to the biting surface 120, and at least one of the second coupling portion 12 of the articulating member 10 and the limb portion 20 is suitably elastically deformable to allow the second coupling portion 12 to be received in the receiving slot 21 of the limb portion 20.

When the joint connector 10 is connected with the limb part 20, the protrusion 121 of the second connecting part 12 is engaged with the groove 211 of the inner wall of the fitting groove 21, and the two are fixed and kept in the posture without elastic deformation caused by external force.

As an embodiment, as shown in fig. 4 and 5, the protrusions 121 of the second connecting portion 12 are uniformly spaced around the first rotation axis X1. For example, as shown in the figure, 8 convex portions 121 are arranged on one side plane of the second connecting portion 12, and an included angle β between two adjacent convex portions 121 is 45 °. In other embodiments, the specific size of the included angle β may also be varied to meet specific needs.

Assuming that the limb portion 20 remains stationary, toggling the end of the articulation link 10 adjacent to its first connection portion 11 upwards, under the influence of an external force, produces a certain amount of deformation between the articulation link 10 and the limb portion 20, allowing the articulation link 10 to rotate about the first axis of rotation X1 of its second connection portion 12, for example, by exactly 45 °, the articulation link 10 and the limb portion 20 change from the posture shown in figure 4 to the posture shown in figure 5. At this time, the protrusion 121 of the second connecting part 12 is aligned with the groove 211 of the sidewall of the fitting groove 21, and the protrusion 121 is engaged with the groove 211 again by the restoring force between the joint connector 10 and the limb part 20, so that the fixation is achieved, and the new posture shown in fig. 5 is maintained.

The included angle β is a unit rotation amount, or may be referred to as a step length, and when the rotational joint connecting member 10 is used, if it needs to be adjusted by 90 °, it is rotated by 2 unit rotation amounts.

Referring to fig. 6, in some embodiments, the side walls of the fitting groove 21 of the limb portion 20 are provided with a plurality of grooves 211 having different sizes of adjacent included angles β. Accordingly, the number of the protrusions 121 of the second connecting portion 12 of the joint connecting member 10 is smaller than the number of the plurality of recesses 211, for example, at a minimum, only one protrusion 121 is provided, and the number of the recesses 211 is plural. In the case of two or more protrusions 121, the fitting constraint relationship between the protrusions 121 and the grooves 211 needs to be calculated specifically, the geometric relationship can be obtained according to conventional mathematical analysis and calculation, and the specific relationship is not limited, and can be adjusted and deformed as needed, and is not described herein again.

As shown in fig. 6, in the plurality of grooves 211, an included angle between two adjacent grooves 211 close to the left side is smaller than an included angle between two adjacent grooves 211 close to the right side, and when the protrusion 121 on the second connection portion 12 rotates to the groove 211 on the left side, a unit rotation amount is smaller, so that small-angle adjustment can be achieved, and when the protrusion rotates to the groove 211 on the right side, a unit rotation amount is larger, so that adjustment at a larger angle can be achieved. When the structure is applied to the doll, the left side of the figure 6 can correspond to the front of the doll, and the right side of the figure 6 can correspond to the rear of the doll, so that the adjustment of high flexibility of the front side of the doll is met.

In some embodiments, the positions of the recess 211 and the protrusion 121 may be interchanged, the recess 211 is provided on the second connection part 12, and the protrusion 121 is provided on the inner wall of the fitting groove 21.

Further, the middle portion of the second connecting portion 12 is provided with a shaft hole 122 for passing the shaft 30. The shaft 30 is attached to the side wall of the fitting groove 21 of the limb portion 20.

As shown in fig. 7, preferably, the side surface 1210 of the protrusion 121 is an arc surface, and the protrusion amount of the middle portion of the protrusion 121 is the largest. Correspondingly, the side wall of the groove 211 on the inner wall of the fitting groove 21 of the limb portion 20 is also arc-shaped and is matched with the projection 121. Under the guiding action of the arc-shaped surface, the rotation and the alignment are more easily realized.

The protrusion 121 has a certain length D to improve the posture maintaining ability of the joint and prevent erroneous rotation due to slippage. Preferably, the length D of the protrusion 121 is at least 0.5 mm.

One end of the second connecting part 12 can realize the rotation of the joint in one direction. The first coupling portion 11 is also rotatable when connected to a limb portion (not shown). The first joint part 12 has a second axis of rotation X2 in the longitudinal direction of the joint connection 10 and is at an angle to the first axis of rotation X1, such that rotation in the other direction is achieved. Preferably, the angle between the second rotation axis X2 and the first rotation axis X1 is 90 °.

The embodiments of the present invention are only used for illustration, and do not limit the scope of the claims, and other substantially equivalent alternatives that may be conceived by those skilled in the art are within the scope of the present invention.

Claims

1. A joint connection comprising first and second connection portions connected together for connecting first and second limb portions respectively, wherein:

the second connecting part is provided with at least one occlusal surface, and a first rotating axis X1 which rotates relative to the second limb part is arranged on the occlusal surface; at least one first engaging structure on the occlusal surface around the first rotation axis X1 for engaging with at least one second engaging structure on a side wall of a mounting groove provided on the second limb portion to maintain a posture between the joint connector and the second limb portion when not subjected to an external force;

a second rotation axis X2 when rotated relative to the first limb part through the first connection;

at least one of the second connecting part and the second limb part can be elastically deformed appropriately so as to allow the second connecting part to be arranged in the assembling groove of the second limb part or to enable the joint connecting piece to rotate relative to the second limb part; wherein:

the number of the first engaging structures and the number of the second engaging structures are different, and the spacing angle beta between two adjacent first or second engaging structures and the number of the first or second engaging structures satisfy geometric constraints that allow different amounts of unit rotation in different directions.

2. The articulating component of claim 1 wherein one of said first and second engaging structures is a protrusion and the other is a recess.

3. The articulating member of claim 2 wherein the sides of the boss are arcuate surfaces and the side walls of the recess are arcuate surfaces that mate with the boss.

4. The articulating member of claim 1 wherein the second connecting portion has a shaft hole formed in a middle portion thereof for receiving a shaft, the shaft being connected to a side wall of the fitting groove of the second limb portion.

5. The articulating member of claim 1 wherein the length D of the first or second engagement structure is at least 0.5 mm.

6. The articulation joint of claim 1 wherein said second axis of rotation X2 is at an angle to said first axis of rotation X1.

7. The articulation connection according to claim 6, characterized in that the angle between the second rotation axis X2 and the first rotation axis X1 is 90 °.

8. The articulating component of claim 1 wherein each side of said second connecting portion has 1 occlusal surface.