A model activity connection structure

Abstract

The utility model discloses a model movable connecting structure, including first connecting piece and second connecting piece, the first connecting piece includes ball head, the second connecting piece includes the ball groove for accommodating the ball head in the connecting seat and setting up in the connecting seat, the opening of ball groove is radially arranged to the limit stop, the outer wall of ball head is provided with the limit surface, is used for the ball head along the opening of the ball groove in the set linear direction matching, the utility model discloses the connecting installation of ball head and ball groove is realized with limit surface and limit stop, through the shape matching of limit surface and limit stop, ball head can enter ball groove under the condition of no wear, no deformation in the set angle direction, and under the condition of other angle direction, ensure that ball head is stably limited in ball groove, greatly reduce the loss when ball head and ball groove dismount, improve reliability and durability.

Description

Technical Field

[0001] This utility model belongs to the field of model device technology and relates to a model movable connection structure. Background Technology

[0002] Currently, many movable parts in figurines, toys, and other models on the market are connected using ball joint structures. A ball joint structure is a combination of a ball head and a ball groove. The ball head provides multi-directional movement between parts through its high degree of freedom within the ball groove. In existing ball joint structures, the ball head and ball groove are mostly directly plugged in. The ball groove is usually made of plastic, which has a certain degree of elastic deformation, allowing the ball head to be directly squeezed into the ball groove for installation. However, this method causes significant wear and tear on the ball groove and ball head. Repeated disassembly and assembly can lead to irreversible deformation and wear, resulting in loosening and failure of the connection. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a model active connection structure.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A model movable connection structure includes a first connector and a second connector. The first connector includes a ball head, and the second connector includes a connecting seat and a ball groove disposed in the connecting seat for accommodating the ball head. The opening of the ball groove is provided with a limiting block in a radially inward direction, and the outer wall of the ball head is provided with a limiting surface for the ball head to match the opening of the ball groove in a predetermined straight direction.

[0006] Furthermore, the limiting surface is a plane, and the horizontal direction of the plane is parallel to the straight line direction.

[0007] Furthermore, the limiting surface includes a plane and an arc surface, the plane and the arc surface are connected and disposed, the arc surface protrudes or is recessed in the plane along the radial direction of the ball head, and the horizontal direction of the plane and the axial direction of the arc surface are both parallel to the straight line direction.

[0008] Furthermore, there are two limiting surfaces, which are symmetrically arranged with the axis of the ball head as the center of symmetry.

[0009] Furthermore, it also includes an inner rubber liner, wherein the ball groove is provided with a slot for the inner rubber liner to be snapped and fixed, and the inner rubber liner is provided with a concave surface for abutting and engaging with the outer wall of the ball head.

[0010] Furthermore, the first connector also includes a connecting rod, with the ball head disposed at one end of the connecting rod.

[0011] Furthermore, the straight line direction is parallel to the axis of the connecting rod.

[0012] In summary, the advantages of this utility model are as follows:

[0013] This utility model uses a limiting surface and a limiting block to connect and install the ball head and the ball groove. By matching the shapes of the limiting surface and the limiting block, the ball head can enter the ball groove without wear or deformation at a set angle, and ensures that the ball head is stably limited in the ball groove at other angles. This greatly reduces the wear and tear when disassembling and assembling the ball head and the ball groove, and improves reliability and durability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the movable connection structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the active connection structure as seen from the projection viewpoint in direction a.

[0016] Figure 3 for Figure 1 A schematic diagram of the internal structure of the active connection structure in the diagram.

[0017] Figure 4 This is a top view of the first connector and the second connector when they are in contact.

[0018] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of AA.

[0019] Figure 6 for Figure 4 A schematic diagram of the cross-sectional structure of BB.

[0020] The markings in the diagram are: 1. Ball head; 11. Connecting rod; 121. Flat surface; 122. Curved surface; 2. Connecting seat; 21. Ball groove; 22. Limiting block; 23. Slot; 3. Inner lining pad; 31. Concave surface. Detailed Implementation

[0021] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0023] In this embodiment of the invention, all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0024] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of this utility model may actually be an approximate parallel relationship, and the perpendicular relationship may actually be an approximate perpendicular relationship.

[0025] This embodiment provides a movable connection structure for models, used for movable connections between multiple parts in various models such as figurines and toys.

[0026] The movable connection structure includes a first connector and a second connector, which are respectively disposed on two different components. The first connector and the second connector form a plug-in fit. Preferably, in this embodiment, a ball joint connection is used.

[0027] The first connector includes a ball head 1 and a connecting rod 11. The ball head 1 is disposed at one end of the connecting rod 11, and the other end of the connecting rod 11 is used to connect with the model component. The second connector includes a connecting seat 2. The connecting seat 2 is hollow and has a ball groove 21 for accommodating the ball head 1. The ball groove 21 forms an opening at one end of the connecting seat 2 for the ball head 1 to enter the ball groove 21, and the other end of the connecting seat 2 is used to connect with the model component.

[0028] In this embodiment, the direction in which the ball head 1 enters or exits the ball groove 21 is predetermined, as shown in the following reference. Figure 1 As shown, the straight line direction is set as shown in the figure. Preferably, the center of the ball head 1 and the center of the ball groove 21 are both collinear with the straight line in the direction of a. More preferably, the direction of a is parallel or coaxial with the axis of the connecting rod 11. During the process of the ball head 1 entering or moving out of the ball groove 21, the center of the ball head 1 and the center of the ball groove 21 move closer to or further away from each other along the straight line in the direction of a.

[0029] Reference Figures 2 to 6In this embodiment, a limiting structure is set to limit the ball head 1 and the ball groove 21 in the a direction. The limiting structure includes a limiting block 22 respectively set at the opening of the ball groove 21 and a limiting surface set on the ball head 1. The limiting block 22 is set to protrude radially inward from the inner periphery of the opening of the ball groove 21, so that the opening of the ball groove 21 has a set shape under the projection in the a direction. The limiting surface is set on the outer periphery of the ball head 1, and the horizontal direction of the limiting surface, that is, the direction in which the limiting surface intersects with the ball head 1, is set to be parallel to the a direction, thereby forming a tangent on the ball head 1. The ball head 1 has a set shape that matches the opening of the ball groove 21 under the projection in the a direction.

[0030] In some embodiments, the limiting surface is plane 121. Under projection in direction a, the circular projection section of the ball head 1 is cut by the limiting surface along a straight line to form a mitered circle shape. Correspondingly, the projection section of the opening of the ball groove 21 forms a matching mitered circle shape under the protrusion of the limiting block 22. The projection section size of the ball head 1 is slightly smaller than the projection section size of the opening of the ball groove 21. At least while keeping the horizontal direction of plane 121 parallel to direction a, in the reference plane 121 (XY direction plane 121) perpendicular to direction a, the ball head 1 and the opening of the ball groove 21 form a set initial angle. When the two projection sections match, the ball head 1 can enter the opening of the ball groove 21 along direction a. That is, the limiting block 22 and the limiting surface form a limitation in two directions in the spatial coordinate system X, Y, and Z axes of the ball head 1 entering the ball groove 21. Figure 1 The directional markings in the middle limit the ball head 1 in the XY and XZ directions. If the ball head 1 is misaligned in either of these two directions, it cannot enter or leave the opening of the ball groove 21. After the ball head 1 is fully inside the ball groove 21, the initial angle is changed by the relative rotation between the ball head 1 and the ball groove 21. Then, the limiting block 22 blocks and limits the ball head 1, preventing the ball head 1 from coming out of the ball groove 21.

[0031] In other embodiments, the limiting surface is a composite surface. Preferably, the limiting surface is a combination of a plane 121 and an arc surface 122. When projected in direction a, the circular projection section of the ball head 1 is continuously cut by the limiting surface along a straight line and an arc, or continuously cut along a straight line, an arc, and a straight line. The arc surface 122 is either convex outward from the plane 121 or concave inward from the plane 121 in the radial direction of the ball head 1. Correspondingly, the limiting block 22 has an arc-shaped notch or arc-shaped protrusion that matches the arc surface 122 in the radial direction, so that the projection section of the ball groove 21 opening... The surface forms a matching shape under the protrusion of the limiting block 22. While keeping the horizontal direction of the plane 121 parallel to the a direction and the axial direction of the arc surface 122 parallel to the a direction, in the reference plane 121 perpendicular to the a direction, the ball head 1 and the opening of the ball groove 21 form a set initial angle. When the two projected sections match, the ball head 1 can enter the opening of the ball groove 21 along the a direction. That is, the limiting block 22 and the limiting surface form a limit in three directions in the spatial coordinate system X, Y, and Z axes of the ball head 1 entering the ball groove 21. Figure 1 The directional markings in the middle limit the ball head 1 in the XY, XZ and YZ directions. If the ball head 1 is misaligned in any of these three directions, it cannot enter or leave the opening of the ball groove 21. After the ball head 1 is fully inside the ball groove 21, the initial angle is changed by the relative rotation between the ball head 1 and the ball groove 21. Then, the limiting block 22 blocks and limits the ball head 1, preventing the ball head 1 from coming out of the ball groove 21.

[0032] More preferably, there are two limiting surfaces, which are symmetrically arranged on both sides of the ball head 1 with the axis of the ball head 1 as the center of symmetry. Correspondingly, there are also two limiting blocks 22. The double limiting surfaces further enhance the limiting effect, ensuring that the ball head 1 can enter and exit the ball groove 21 only at the set angle position, so as to ensure the stability of the ball head 1 in the ball groove 21 and reduce the situation where the ball head 1 separates from the ball groove 21 during use.

[0033] Furthermore, an inner lining pad 3 is provided inside the ball groove 21. A slot 23 for the inner lining pad 3 is provided on the inner wall of the ball groove 21. A concave surface 31 is provided on the end of the inner lining pad 3 facing the ball groove 21 for abutting against the outer spherical surface of the ball head 1. When the ball head 1 is placed in the ball groove 21, the outer wall of the ball head 1 is in contact with the concave surface 31, thereby forming a relative static friction force, which creates a certain damping effect on the rotation of the ball head 1 relative to the ball groove 21, improves the controllability, and provides a certain stopping ability for the posture of the first connector and the second connector, allowing the user to operate to a specific required posture and maintain it.

[0034] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort should fall within the protection scope of this utility model.

Claims

1. A model active connection structure, characterized in that, The device includes a first connector and a second connector. The first connector includes a ball head (1), and the second connector includes a connecting seat (2) and a ball groove (21) disposed in the connecting seat (2) for accommodating the ball head (1). The opening of the ball groove (21) is provided with a limiting block (22) radially inward, and the outer wall of the ball head (1) is provided with a limiting surface for the ball head (1) to match the opening of the ball groove (21) along a set straight line direction.

2. The model active connection structure according to claim 1, characterized in that, The limiting surface is a plane (121), and the horizontal direction of the plane (121) is parallel to the straight line direction.

3. The model active connection structure according to claim 1, characterized in that, The limiting surface includes a plane (121) and an arc surface (122). The plane (121) and the arc surface (122) are connected and disposed. The arc surface (122) protrudes or is recessed in the plane (121) along the radial direction of the ball head (1). The horizontal direction of the plane (121) and the axial direction of the arc surface (122) are both parallel to the straight line direction.

4. A model active connection structure according to claim 2 or 3, characterized in that, There are two limiting surfaces, which are symmetrically arranged with the axis of the ball head (1) as the center of symmetry.

5. A model active connection structure according to claim 1, characterized in that, It also includes an inner lining pad (3), and the ball groove (21) is provided with a slot (23) for the inner lining pad (3) to be snapped and fixed, and the inner lining pad (3) is provided with a concave surface (31) for abutting and cooperating with the outer wall of the ball head (1).

6. The model active connection structure according to claim 1, characterized in that, The first connector also includes a connecting rod (11), and the ball head (1) is disposed at one end of the connecting rod (11).

7. A model active connection structure according to claim 6, characterized in that, The straight line direction is parallel to the axis of the connecting rod (11).

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