Butt-joint pipe fitting axial connection structure with bending resistance

Abstract

A butt-joint pipe axial connecting structure with bending resistance comprises a plurality of butt-joint pipes and a shaft sleeve, a plurality of connecting holes are formed in the outer walls of the butt-joint pipes, at least one through hole is formed in the inner wall of each connecting hole, a plurality of threaded holes are formed in pipe openings of the butt-joint pipes, the two ends of the shaft sleeve are inserted into the two butt-joint pipes respectively, and the shaft sleeve covers the connecting holes. The utility model is used for solving the problem that high bending resistance, high structural strength and convenience in construction cannot be considered in the existing pipe fitting connecting mode.

Description

Technical Field

[0001] The utility model relates to an axial connection structure of butt-jointed pipes with anti-bending capability. Background Art

[0002] Currently, the most commonly used axial butt joints for pipes include flanges, welding, and threaded connections. However, these structures have several drawbacks. For example, flanges only allow for axial connection, resulting in poor bending resistance at the joint. Furthermore, the flange diameter is generally larger than the connecting pipe diameter, making it unsuitable for structures requiring envelope dimensions. While welded connections offer high structural strength, their construction is relatively complex and requires specialized equipment. While threaded connections offer a simple and easy-to-use structure, their bending resistance is lower than other connection structures. Utility Model Content

[0003] The purpose of the utility model is to provide an axial connection structure of butt-jointed pipes with anti-bending ability, which is used to solve the problem that the existing pipe connection method cannot take into account high anti-bending performance, high structural strength and convenient construction.

[0004] In order to solve the above problems, the technical solution of the utility model is:

[0005] A butt-jointed pipe axial connection structure with anti-bending ability includes multiple butt-jointed pipes and shaft sleeves. Multiple connection holes are opened on the outer wall of the butt-jointed pipe, at least one through hole is provided on the inner wall of the connection hole, and multiple threaded holes are opened on the butt-jointed pipe opening. The two ends of the shaft sleeve are respectively inserted into the two butt-jointed pipes, and the shaft sleeve covers the connection holes.

[0006] A positioning countersunk hole is provided at the butt pipe opening, and the shaft sleeve is arranged in the positioning countersunk hole.

[0007] Four connecting holes are opened on the outer wall of the butt joint pipe, a through hole is provided on the inner wall of each connecting hole, and four threaded holes are opened on the butt joint pipe mouth, and the four threaded holes are respectively located between two adjacent connecting holes.

[0008] The connecting hole is a square hole.

[0009] The two butt-jointed pipes are connected by hexagon socket screws.

[0010] The beneficial effects of the utility model are as follows: the butt-jointed pipes are butted together by means of two-way butt-threading, and a shaft sleeve is embedded at the butt joint, which not only makes the pipe have good bending resistance, but also makes the construction simple and convenient, easy to operate, and has high connection strength without changing the external dimensions of the original pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings:

[0012] Figure 1 This is the axonometric drawing of the connection structure of the utility model;

[0013] Figure 2 This is a cross-sectional view of the connection structure of the utility model;

[0014] Figure 3 This is the appearance diagram of the butt joint fitting of the utility model

[0015] Figure 4 This is an exploded view of the utility model.

[0016] In the figure: butt pipe 1, screw 2, sleeve 3, connecting hole 4. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] like Figures 1 to 4 As shown, a butt-joint pipe 1-piece axial connection structure with anti-bending ability includes multiple butt-joint pipes 1 and sleeves 3. Multiple connection holes 4 are opened on the outer walls of both ends of the butt-joint pipes 1. At least one through hole connected to the pipe opening of the butt-joint pipe 1 is provided on the inner wall of the connection hole 4. Multiple threaded holes are opened on the pipe opening of the butt-joint pipe 1. The two ends of the sleeve 3 are respectively inserted into the two butt-joint pipes 1, and the sleeve 3 covers the connection holes 4. During construction, the butt-joint pipes 1 are connected end to end, and the sleeve 3 is inserted into the connection part of the butt-joint pipes 1. The two butt-joint pipes 1 are connected and fastened by screws 2 in a bidirectional through-penetration manner. This makes the pipeline have good anti-bending performance, and the construction is simple and convenient, easy to operate, and the connection strength is high without changing the external dimensions of the original pipeline.

[0019] A positioning countersunk hole is provided at the mouth of the butt joint pipe 1, and the shaft sleeve 3 is arranged in the positioning countersunk hole. The positioning countersunk hole is used to position the shaft sleeve 3 to prevent the shaft sleeve 3 from shifting when the fluid flows through the butt joint pipe 1.

[0020] Four connecting holes 4 are provided on the outer wall of the butt joint pipe 1, a through hole is provided on the inner wall of each connecting hole 4, and four threaded holes are provided on the pipe mouth of the butt joint pipe 1, and the four threaded holes are respectively located between two adjacent connecting holes 4. This structure facilitates the processing of the butt joint pipe 1.

[0021] The connecting hole 4 is a square hole with rounded corners, which is convenient for processing and manufacturing and can also be used to easily insert the screw 2.

[0022] The two butt-jointed pipes 1 are connected by an inner hexagonal screw 2. Compared with the outer hexagonal screw 2, the rotation angle is increased and the shaft sleeve 3 will not be damaged by the rotation of the screw 2.

[0023] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the utility model concept. The protection scope of the utility model should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the utility model also extends to equivalent technical means that can be thought of by those skilled in the art based on the concept of the utility model.

Claims

1. An axial connection structure of a butt-jointed pipe with bending resistance, characterized in that: The invention comprises a plurality of butt-jointed tubes (1) and shaft sleeves (3), wherein a plurality of connecting holes (4) are provided on the outer wall of the butt-jointed tubes (1), at least one through hole is provided on the inner wall of the connecting hole (4), a plurality of threaded holes are provided on the pipe opening of the butt-jointed tubes (1), and the two ends of the shaft sleeves (3) are respectively inserted into the two butt-jointed tubes (1), and the shaft sleeves (3) cover the connecting holes (4).

2. The axial connection structure of the butt-jointed pipe with anti-bending capability according to claim 1, characterized in that: A positioning countersunk hole is provided at the pipe opening of the butt-joint pipe (1), and the shaft sleeve (3) is arranged in the positioning countersunk hole.

3. The axial connection structure of the butt-jointed pipe with anti-bending capability according to claim 1 or 2, characterized in that: Four connecting holes (4) are provided on the outer wall of the butt-joint pipe (1), a through hole is provided on the inner wall of each connecting hole (4), and four threaded holes are provided on the pipe mouth of the butt-joint pipe (1), and the four threaded holes are respectively located between two adjacent connecting holes (4).

4. The axial connection structure of the butt-jointed pipe with anti-bending capability according to claim 1 or 2, characterized in that: The connecting hole (4) is a square hole.

5. The axial connection structure of the butt-jointed pipe with anti-bending capability according to claim 1 or 2, characterized in that: The two butt-jointed pipes (1) are connected by hexagon socket screws (2).

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