Rod piece bending joint

Abstract

The invention discloses a rod piece bending joint which comprises a first rod piece (A), a second rod piece (B), a bearing and a positioning device, the first rod piece (A) is screwed relative to the second rod piece (B) to achieve rotation of the rod pieces along a diagonal plane, space bending is generated, the rod pieces are used for locking at a designated position, and compared with an existing bending mode in a plane, the rod piece bending joint has the advantages of being resistant to shearing and clamping, easy to operate, good in hiding performance, attractive and the like.

Description

Technical Field

[0001] The present application belongs to the technical field of mechanical connection, and in particular, relates to a rod bending joint. Background Art

[0002] The bending joints in the existing technology are two-dimensional in-plane bending, similar to scissors, and the central axes of rotation are all visible axes. A hidden joint structure is needed to achieve both aesthetic and bending requirements, which can be widely used to replace the existing two-dimensional scissors-type bending.

[0003] In the bending process of the existing bending joint, shearing injuries are very likely to occur. Spatial bending can prevent the occurrence of plane bending pinching injuries. Summary of the invention

[0004] The purpose of the present application is to provide a rod bending joint.

[0005] In order to achieve the purpose of this application, the following technical solutions are provided: A rod bending joint comprises: a first rod (A), a second rod (B), a bearing, and a positioning device, wherein the first rod (A) comprises a beveled end, the beveled end comprises a bearing seat, the bearing seat is used to fix the outer ring of the bearing, the second rod (B) comprises a beveled end, the beveled end of the second rod (B) comprises a convex shaft, the inner ring of the bearing is fixedly connected through the convex shaft, the surface where the beveled end of the first rod (A) is located, the surface where the beveled end of the second rod (B) is located and the bearing surface are parallel to each other, the first rod (A) and the second rod (B) are rotated in opposite directions along the central axis of the bearing by a screwing method, so that the first rod (A) and the second rod (B) form different spatial angles, and the positioning device is used to lock at a specified position. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is the overall assembly diagram of the rod bending joint of Example 1 of the present invention; Figure 2 This is a spatial relationship diagram of the first rod (A) and the second rod (B) after the rod bending joint of Example 1 of the present invention is bent; Figure 3 It is an overall schematic diagram of the non-bending state of the bending joint of the rod member in Example 1 of the present invention.

[0007] In the figure, A is the first rod; B is the second rod; 1 is the bearing; 2 is the cam; 3 is the positioning device; 4 is the positioning hole. DETAILED DESCRIPTION

[0008] As required, detailed embodiments of the present invention are disclosed herein, but it should be understood that the disclosed embodiments are only exemplary of the present invention, and the present invention may be implemented in different and alternative forms. The drawings are not necessarily drawn to scale, and certain features may be exaggerated or reduced to show the details of specific components. Therefore, the specific structural and functional details disclosed herein should not be understood as having a limiting meaning, but only as a representative basis to teach those skilled in the art to adopt the present invention differently. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0009] Example 1: Figure 1 As shown, the rod bending joint includes: a first rod (A), a second rod (B), a bearing (1), and a positioning device (3). The first rod (A) and the second rod (B) can be thick-walled pipes or solid bars.

[0010] like Figure 1 As shown, the first rod (A) includes a beveled end, the beveled end includes a bearing seat and a plurality of positioning holes (4), the bearing seat is used to fix the outer ring of the bearing (1), the second rod (B) includes a beveled end, the beveled end of the second rod (B) includes a convex shaft (2), the inner ring of the bearing (1) is fixedly connected through the convex shaft (2), the positioning device (3) cooperates with the positioning hole (4) to position the specified bending angle, the front section of the positioning device (3) is a positioning pin, and the rear section is a compression spring.

[0011] like Figure 2 As shown, by screwing, the first rod (A) and the second rod (B) are made to rotate in opposite directions along the central axis of the bearing (1), thereby realizing one of the shapes after spatial bending.

[0012] like Figure 3 As shown, the non-bending state of the bending joint is a straight implicit connection.

Claims

1. A rod bending joint, characterized in that: include: A first rod (A), a second rod (B), a bearing (1), and a positioning device (3), wherein the first rod (A) includes a beveled end, the beveled end includes a bearing seat and a plurality of positioning holes (4), the bearing seat is used to fix the outer ring of the bearing (1), the second rod (B) includes a beveled end, the beveled end of the second rod (B) includes a convex shaft (2), the inner ring of the bearing (1) is fixedly connected via the convex shaft (2), and the positioning device (3) cooperates with the positioning hole (4) to position the bearing at a specified bending angle.

2. The rod bending joint according to claim 1, characterized in that : The surface where the beveled end of the first rod (A) is located, the surface where the beveled end of the second rod (B) is located, and the surface of the bearing (1) are parallel to each other.

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