Butt welding short pipe seat

Abstract

The utility model relates to a butt welding short pipe seat which is composed of a plurality of pipe bodies, inner cavities of the pipe bodies are provided with inner holes communicated with one another, and the pipe seat is sequentially provided with a first pipe body, a second pipe body, a third pipe body and a connecting end from top to bottom. The outer diameter of the first pipe body is smaller than that of the second pipe body; a first conical surface is arranged between the first pipe body and the second pipe body; the outer diameter of the second pipe body is smaller than that of the third pipe body; a second conical surface is arranged between the second pipe body and the third pipe body; an inner conical surface and an outer conical surface are arranged on the inner side and the outer side of the connecting end respectively, the inner conical surface is connected with the inner hole, and a port of the connecting end is provided with a pair of outwards-protruding arc-shaped surfaces matched with an externally-connected pipeline. The inner conical surface and the outer conical surface are respectively arranged on the inner side and the outer side of the connecting end, and the connecting port is provided with a pair of convex arc-shaped surfaces matched with an external pipeline, so that the pipe seat is tightly matched with the external pipeline, the pipe seat adopts a butt welding short pipe connecting mode, the pipe seat is particularly suitable for connecting pipelines with different calibers, the mounting precision is high, the connection is firm, and the service life is long. And the sealing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, in particular to a butt-welded short pipe seat. Background Art

[0002] The welded pipe socket for traditional pipelines has flexible requirements for the specifications of the steel pipes. After being welded with the pipeline, it has the characteristics of reliable connection and good sealing performance. The welded pipe socket is suitable for non-corrosive or corrosive media such as oil, water, and gas.

[0003] The pipe seat, also known as the pipe seat, is a special accessory for pipe connection. It connects two sections of pipes through a saddle-shaped bracket to achieve the effect of pipe connection. Pipe seats are generally divided into two types: stable pipe seats and adjustable pipe seats. The pipe seat has the characteristics of shockproof, strong adjustability and wide applicability, making the pipe connection more stable and firm; the pipe seat can easily adjust the angle and height of the connecting pipe, and has greater flexibility; the pipe seat is suitable for pipe connections of various materials and specifications, and can meet various different needs.

[0004] When connecting pipes of different diameters, pipe sockets and pipes are usually connected by threads. To prevent leakage and enhance the sealing effect, sealing rings need to be installed. Traditional pipe sockets not only have complex production processes, but also have high requirements for connection with pipes, making installation and construction difficult. Utility Model Content

[0005] The utility model aims to provide a butt-welded short pipe socket, which connects the pipeline and the pipe socket by butt welding, and has good sealing effect, firm connection and convenient installation and construction.

[0006] The purpose of this utility model is achieved by adopting the following technical solutions:

[0007] A butt-welded short pipe socket, which is composed of a plurality of pipe bodies, wherein the inner cavities of the pipe bodies are provided with inner holes that are interconnected, and the pipe socket is composed of a first pipe body, a second pipe body, a third pipe body and a connecting end in order from top to bottom;

[0008] The outer diameter of the first tube body is smaller than that of the second tube body, and a first conical surface is provided between the first tube body and the second tube body;

[0009] The outer diameter of the second tube body is smaller than that of the third tube body, and a second conical surface is provided between the second tube body and the third tube body;

[0010] The inner and outer sides of the connection end are respectively provided with an inner conical surface and an outer conical surface, the inner conical surface is connected to the inner hole, and the port of the connection end is provided with a pair of outward convex arc surfaces matching the external pipe.

[0011] As a preferred technical solution of the utility model, a countersunk hole structure is provided between the port of the connecting end and the inner conical surface.

[0012] As a preferred technical solution of the utility model, the outer conical surface of the connecting end is composed of a third conical surface and a fourth conical surface which are connected to each other.

[0013] As a preferred technical solution of the present utility model, the angles of the third cone surface and the fourth cone surface are different.

[0014] As a preferred technical solution of the present utility model, the angle between the fourth conical surface and the horizontal plane is 30-45 degrees.

[0015] As a preferred technical solution of the present utility model, the thickness of the convex arc surface of the connecting end is 2.0-5.5 mm.

[0016] As a preferred technical solution of the utility model, the multiple tubes are all circular tubes, and the diameters of the inner holes of the tubes are the same, and the outer diameters of the tubes decrease gradually from bottom to top.

[0017] Beneficial effects of the utility model: Compared with the prior art, the inner and outer sides of the connection end of the utility model are respectively provided with an inner cone and an outer cone, and the connection port is provided with a pair of convex arc surfaces matching the external pipe, so that the pipe seat and the external pipe are closely matched, thereby improving the installation accuracy. The pipe seat of the utility model adopts a butt welding short pipe connection method, which is particularly suitable for connecting pipes of different diameters. It is not only firmly connected and has a good sealing effect, but also easy to install and construct. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 yes Figure 1 Schematic diagram of the structure viewed from above.

[0020] In the figure: 1. first tube body, 2. second tube body, 3. third tube body, 4. first conical surface, 5. second conical surface, 6. countersunk hole structure, 7. third conical surface, 8. fourth conical surface, 9. connecting end. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] like Figure 1 and Figure 2As shown, a butt-welded short tube socket is composed of multiple tube bodies, the inner cavity of the tube body is provided with inner holes that are interconnected, and the tube socket is composed of a first tube body 1, a second tube body 2, a third tube body 3 and a connecting end 9 from top to bottom; the outer diameter of the first tube body 1 is smaller than that of the second tube body 2, and a first conical surface 4 is provided between the first tube body 1 and the second tube body 2; the outer diameter of the second tube body 2 is smaller than that of the third tube body 3, and a second conical surface 5 is provided between the second tube body 2 and the third tube body 3; the inner and outer sides of the connecting end 9 are respectively provided with an inner conical surface and an outer conical surface, the inner conical surface is connected to the inner hole, and the port of the connecting end 9 is provided with a pair of convex arc surfaces matching the external pipe.

[0023] In this embodiment, a countersunk hole structure is provided between the port of the connecting end 9 and the inner conical surface 6; the outer conical surface of the connecting end 9 is composed of a third conical surface 7 and a fourth conical surface 8 connected to each other, and the angles of the third conical surface 7 and the fourth conical surface 8 are different.

[0024] In this embodiment, the angle between the fourth conical surface 8 and the horizontal plane is 30-45 degrees; the thickness of the convex arc surface of the connecting end 9 is 2.0-5.5 mm. The multiple tubes in this embodiment are all circular tubes, and the diameters of the inner holes of each tube are the same, and the outer diameters of each tube gradually decrease from bottom to top.

[0025] The above embodiments are limited to illustrating the concept and technical features of the utility model, and their purpose is to allow those skilled in the art to understand the technical solution and implementation method of the utility model, and they cannot limit the protection scope of the utility model. Any equivalent replacement or equivalent change made according to the technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A butt-welded short pipe socket, consisting of a plurality of pipe bodies, wherein the inner cavities of the pipe bodies are provided with inner holes that are interconnected, and wherein: The tube base comprises a first tube body, a second tube body, a third tube body and a connecting end in order from top to bottom; The outer diameter of the first tube body is smaller than that of the second tube body, and a first conical surface is provided between the first tube body and the second tube body; The outer diameter of the second tube body is smaller than that of the third tube body, and a second conical surface is provided between the second tube body and the third tube body; The inner and outer sides of the connection end are respectively provided with an inner conical surface and an outer conical surface, the inner conical surface is connected to the inner hole, and the port of the connection end is provided with a pair of outward convex arc surfaces matching the external pipe.

2. The butt-welded short pipe socket according to claim 1 is characterized in that: A countersunk hole structure is provided between the port of the connecting end and the inner conical surface.

3. The butt-welded short pipe socket according to claim 1 is characterized in that: The outer conical surface of the connecting end is composed of a third conical surface and a fourth conical surface connected to each other.

4. The butt-welded short pipe socket according to claim 3 is characterized in that: The third tapered surface and the fourth tapered surface have different angles.

5. The butt-welded short pipe socket according to claim 4 is characterized in that: The included angle between the fourth conical surface and the horizontal plane is 30-45 degrees.

6. The butt-welded short pipe socket according to claim 1 is characterized in that: The thickness of the convex arc surface of the connecting end is 2.0-5.5 mm.

7. The butt-welded short pipe socket according to claim 1 is characterized in that: The multiple tubes are all circular tubes, and the diameters of the inner holes of the tubes are the same, and the outer diameters of the tubes decrease gradually from bottom to top.

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