Rotary connecting structure

Abstract

The utility model discloses a rotary connection structure which comprises a ball seat, a ball cover, a nut piece, a spherical piece and an installation piece. The ball seat and the ball cover are oppositely arranged and form a containing space, external threads are arranged on the outer side wall of the ball seat, the spherical piece is arranged in the containing space, the two opposite sides of the spherical piece are clamped by the ball seat and the ball cover respectively, the nut piece is provided with internal threads, and the internal threads are connected with the external threads in a screwed mode. When the internal thread of the nut piece and the external thread of the ball seat are screwed in the separating / locking direction, the distance between the ball seat and the ball cover becomes far or near, so that the damping force for clamping the spherical piece becomes small or large, and therefore control over the damping force of the spherical piece is achieved. The damping force upper limit value provided by the design is larger, the spherical part can be clamped more firmly, and looseness caused by external force or long-time use is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary connection, in particular to a rotary connection structure. Background Art

[0002] Mobile phones and cameras are commonly used electronic products. People can use mobile phones and cameras to take pictures. Sometimes, people will install electronic products on some rotating connection accessories, and then they can manually adjust the direction of the electronic products (such as the direction of the camera, and then take pictures). The specific structure of the common rotating connection accessories is as follows, including a main body and a spherical part. The main body is convexly provided with a cylindrical connection part with an opening facing upward. The outer side surface of the cylindrical connection part has a first thread, and the cylindrical connection part is composed of multiple petals arranged in a circular interval. The spherical part is placed in the cylindrical connection part, and then a nut is screwed on the cylindrical connection part. The inner diameter of the nut is slightly smaller than the outer diameter of the cylindrical connection part. When the nut is screwed with the cylindrical connection part, the multiple petals will shrink inward by a certain distance. In this way, the multiple petals will clamp the spherical part, and the spherical part can achieve a certain angle of rotation and pause after rotating in place. The spherical part is connected with a mounting part for mounting electronic products. When the electronic product is mounted on the mounting part, the user can turn the electronic product to achieve a certain position.

[0003] However, due to the friction between the spherical part and the multiple petals when it rotates, it will wear out after the user uses it for a certain period of time. At this time, the clamping force of the petals on the spherical part will weaken until it fails, so that the rotating connection accessory cannot be used normally. Moreover, this structure makes it difficult to reduce the volume of the rotating connection accessory. Utility Model Content

[0004] In view of this, the present invention aims at the defects of the prior art, and its main purpose is to provide a rotating connection structure, which is used to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rotary connection structure includes a ball seat, a ball cover, a nut member, a spherical member, and a mounting member; the ball seat and the ball cover are arranged opposite to each other and form a accommodating space for accommodating the spherical member, the outer side wall of the ball seat has an external thread, the spherical member is arranged in the accommodating space, and the opposite sides of the spherical member are clamped by the ball seat and the ball cover respectively, the end of the nut member is rotatably connected to the ball cover, the nut member has an internal thread, and the internal thread is screwed with the external thread, when the internal thread of the nut member and the external thread of the ball seat are turned in the separation / locking direction, the distance between the ball seat and the ball cover becomes farther / closer, thereby reducing / increasing the damping force of clamping the spherical member, and the mounting member is connected to the spherical member.

[0007] As a preferred solution, the outer surface of the spherical member is coated with a soft rubber member.

[0008] As a preferred solution, the spherical member has a concavo-convex surface with a crisscross pattern.

[0009] As a preferred solution, both the spherical member and the mounting member have screw holes, and a screw is screwed into the screw holes of the spherical member and the mounting member in sequence from bottom to top.

[0010] As a preferred solution, a slot is provided on the ball cover.

[0011] As a preferred solution, the ball cover has a radially outwardly protruding boss, the nut member has an annular convex portion, and the annular convex portion axially catches the boss.

[0012] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, the main points are as follows;

[0013] By clamping the opposite sides of the spherical member by the ball seat and the ball cover respectively, when the internal thread of the nut member is engaged with the external thread of the ball seat, the distance between the ball seat and the ball cover can be conveniently adjusted, thereby realizing the control of the damping force of the spherical member. Since the clamping of the spherical member is directly stressed on the opposite sides, compared with the side clamping or elastic structure locking in the prior art, the upper limit value of the damping force provided by this design is larger, which means that during use, the spherical member can be clamped more firmly, reducing loosening caused by external forces or long-term use, and ensuring the stability of the electronic device.

[0014] To more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0016] Figure 2 is an exploded view of an embodiment of the present utility model;

[0017] Figure 3 is a cross-sectional view of an embodiment of the present utility model.

[0018] Description of the reference numerals:

[0019] 10. Ball seat; 11. External thread; 20. Ball cover; 21. Slot; 22. Boss; 30. Nut member; 31. Internal thread; 32. Annular convex portion; 40. Spherical member; 50. Mounting member; 60. Soft rubber member; 70. Screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes.

[0022] Please refer to Figures 1 to 3 , the embodiment of the present utility model provides a rotary connection structure, which includes a ball seat 10, a ball cover 20, a nut member 30, a spherical member 40, and a mounting member 50; the ball seat 10 and the ball cover 20 are oppositely arranged and form a receiving space for receiving the spherical member 40. The outer side wall of the ball seat 10 has an external thread 11. The spherical member 40 is arranged in the receiving space, and the opposite sides of the spherical member 40 are respectively clamped by the ball seat 10 and the ball cover 20. In this embodiment, the upper and lower sides of the spherical member 40 are respectively clamped by the ball seat 10 and the ball cover 20. The end of the nut member 30 is rotatably connected to the ball cover 20. The nut member 30 has an internal thread 31, and the internal thread 31 is screwed with the external thread 11. When the internal thread 31 of the nut member 30 and the external thread 11 of the ball seat 10 are rotated in the separation / locking direction, the distance between the ball seat 10 and the ball cover 20 becomes farther / closer, so that the damping force for clamping the spherical member 40 becomes smaller / larger, and the mounting member 50 is connected to the spherical member 40.

[0023] By clamping the opposite sides of the spherical member 40 by the ball seat 10 and the ball cover 20 respectively, when the internal thread 31 of the nut member 30 cooperates with the external thread 11 of the ball seat 10, the distance between the ball seat 10 and the ball cover 20 can be conveniently adjusted, so as to realize the control of the damping force of the spherical member 40. Since the clamping of the spherical member 40 directly receives force on the opposite sides, compared with the side clamping or elastic structure locking in the prior art, the upper limit value of the damping force provided by this design is larger, which means that during use, the spherical member 40 can be clamped more firmly, reducing loosening caused by external forces or long-term use, and ensuring the stability of the electronic device.

[0024] Furthermore, the outer surface of the spherical member 40 is coated with a soft rubber member 60, which further enhances the damping force. This structural design can provide the same clamping force as that of a spherical member 40 with a larger diameter while reducing the diameter of the spherical member 40, significantly reducing the volume of the entire mechanism. At the same time, it can provide a stable damping force, enabling the spherical member 40 to maintain a more stable rotation angle.

[0025] Furthermore, the spherical member 40 has a crisscrossed concave-convex surface, which can keep the soft rubber member 60 and the spherical member 40 relatively stationary, preventing the spherical member 40 from slipping when rotating.

[0026] Furthermore, both the spherical member 40 and the mounting member 50 have threaded holes, and a screw 70 is screwed into the threaded holes of the spherical member 40 and the mounting member 50 in sequence from bottom to top. In this way, the spherical member 40 and the mounting member 50 can be connected.

[0027] Furthermore, the ball cover 20 has a slot 21, through which the mounting member 50 can move 0 - 90 degrees. Therefore, users can adjust it by themselves to achieve the desired shooting angle.

[0028] Furthermore, the ball cover 20 has a radially protruding boss 22, and the nut member 30 has an annular protrusion 32. The annular protrusion 32 axially clamps the boss 22, thus realizing the connection between the ball cover 20 and the nut member 30.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotary connection structure, characterized in that: It includes a ball seat, a ball cover, a nut member, a spherical member, and a mounting member; the ball seat and the ball cover are oppositely arranged and form a receiving space for accommodating the spherical member. The outer wall of the ball seat has an external thread. The spherical member is arranged in the receiving space, and the two opposite sides of the spherical member are respectively clamped by the ball seat and the ball cover. The end of the nut member is rotatably connected to the ball cover. The nut member has an internal thread, and the internal thread is screwed with the external thread. When the internal thread of the nut member and the external thread of the ball seat are rotated in the separation / locking direction, the distance between the ball seat and the ball cover becomes farther / closer, so that the damping force for clamping the spherical member becomes smaller / larger. The mounting member is connected to the spherical member.

2. The rotational connection structure according to claim 1, wherein: The outer surface of the spherical member is coated with a soft rubber member.

3. The rotary connection structure according to claim 2, characterized in that: The spherical member has a crisscross concave-convex surface.

4. A rotary connection structure according to any one of claims 1 to 3, characterized in that: Both the spherical member and the mounting member have screw holes, and a screw is screwed with the screw holes of the spherical member and the mounting member in sequence from bottom to top.

5. A rotary connection structure according to any one of claims 1-3, characterized in that: The ball cover has a slot.

6. A rotary connection structure according to any one of claims 1-3, characterized in that: The ball cover has a radially outwardly protruding boss, and the nut member has an annular convex portion, and the annular convex portion axially catches the boss.

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