Compression-resistant steel pipe

Abstract

The utility model discloses a compression-resistant steel pipe which comprises an outer pipe and an inner pipe, the inner pipe is located inside the outer pipe, a V-shaped steel sheet is fixedly installed between the outer pipe and the inner pipe, and a cross-shaped steel sheet is fixedly installed on the inner side of the inner pipe. According to the compression-resistant steel pipe, a plurality of continuous triangular grooves are formed between the inner pipe and the outer pipe through the V-shaped steel sheets, and the probability that the pipe deforms left and right under external pressure can be greatly increased through the stability of triangles; and the design of a plurality of hollow grooves inside ensures that the overall compressive strength is improved and the overall quality is not increased too much, so that the effect of considering both strength and light weight is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipes, in particular to a compression-resistant steel pipe. Background Art

[0002] Steel pipe is a steel material with a hollow section whose length is much greater than its diameter or circumference. According to the cross-sectional shape, it can be divided into round, square, rectangular and special-shaped steel pipes; according to the material, it can be divided into carbon structural steel pipes, low alloy structural steel pipes, alloy steel pipes and composite steel pipes; according to the purpose, it can be divided into steel pipes for transportation pipelines, engineering structures, thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.

[0003] The compressive performance of steel pipes is one of the important indicators of steel pipes. The compressive performance of steel pipes determines the service life of steel pipes during use and whether they can be used in harsh environments. The current way to improve the compressive performance of steel pipes is generally to increase the wall thickness of the steel pipes. As the wall thickness of the steel pipes increases, the overall quality will increase greatly, which will greatly increase the difficulty of laying the steel pipes.

[0004] Therefore, the utility model provides a compression-resistant steel pipe to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a compression-resistant steel pipe to solve the above-mentioned problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a compression-resistant steel pipe, comprising an outer pipe and an inner pipe, the inner pipe is located inside the outer pipe, a V-shaped steel sheet is fixedly installed between the outer pipe and the inner pipe, and a cross steel sheet is fixedly installed on the inner side of the inner pipe.

[0007] Preferably, the outer tubes are cocentric, and the intervals between the outer tubes and the inner tubes are uniform and the same.

[0008] Preferably, the angled end of the V-shaped steel sheet is fixedly mounted on the outer wall of the inner tube, the outer ends of the V-shaped steel sheet are fixedly mounted on the inner wall of the outer tube, and the outer end surfaces of adjacent V-shaped steel sheets are connected.

[0009] Preferably, the outer tube and the inner tube are provided with a plurality of triangular grooves through mutually connected V-shaped steel sheets.

[0010] Preferably, the cross steel sheets are respectively a horizontal plate and a vertical plate, and outer edges of the horizontal plate and the vertical plate are fixedly mounted on the inner wall of the inner tube.

[0011] Preferably, the connection between the horizontal plate and the vertical plate is located at the center of the horizontal plate and the vertical plate.

[0012] Beneficial Effects

[0013] The utility model provides a compression-resistant steel pipe. Compared with the prior art, it has the following beneficial effects:

[0014] 1. This compression-resistant steel pipe forms multiple continuous triangular grooves between the inner pipe and the outer pipe through V-shaped steel sheets. The stability of the triangle can greatly increase the probability of deformation of the pipe under the action of external pressure. The design of multiple hollow grooves inside ensures that the overall compressive strength is improved without increasing the overall mass too much, ensuring the effect of both strength and lightness.

[0015] 2. The compression-resistant steel pipe has a plurality of cross steel sheets evenly arranged inside the inner pipe, and the inner pipe is further supported from the inside by the cross steel sheets. The force transmitted to the inner pipe from the outside is shared by the cross steel sheets, so that the probability of pipe deformation when under pressure can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0018] Figure 2 It is a split stereogram of the internal structure of the utility model;

[0019] Figure 3 It is a side view of the utility model;

[0020] Figure 4 It is a front structural stereogram of the utility model.

[0021] In the figure: 1. outer tube; 2. inner tube; 3. V-shaped steel sheet; 4. cross steel sheet. DETAILED DESCRIPTION

[0022] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] The present application is further described in detail below through drawings and examples.

[0024] Reference Figures 1 to 4 The embodiment of the present application provides a compression-resistant steel pipe, including an outer pipe 1 and an inner pipe 2, wherein the inner pipe 2 is located inside the outer pipe 1, a V-shaped steel sheet 3 is fixedly installed between the outer pipe 1 and the inner pipe 2, and a cross steel sheet 4 is fixedly installed on the inner side of the inner pipe 2.

[0025] In an optional embodiment: the outer tube 1 is cocentric with the inner tube 2, and the intervals between the outer tube 1 and the inner tube 2 are uniform and the same.

[0026] It should be noted that the arrangement of the internal V-shaped steel sheets 3 is facilitated by the evenly spaced inner tube 2 and outer tube 1 .

[0027] In an optional embodiment: the angled ends of the V-shaped steel sheets 3 are fixedly mounted on the outer wall of the inner tube 2, the outer ends of the V-shaped steel sheets 3 are fixedly mounted on the inner wall of the outer tube 1, and the outer end faces of adjacent V-shaped steel sheets 3 are connected. In an optional embodiment: the outer tube 1 and the inner tube 2 are connected to form a plurality of triangular grooves through the interconnected V-shaped steel sheets 3.

[0028] It should be noted that by installing V-shaped steel sheets 3 connected end to end between the inner tube 2 and the outer tube 1, a plurality of continuous triangular grooves can be formed between the inner tube 2 and the outer tube 1 through the V-shaped steel sheets 7. The stability of the triangle can greatly increase the probability of deformation of the pipeline under the action of external pressure, and the design of multiple hollow grooves inside ensures that the overall compressive strength is improved without increasing the overall mass too much, thereby ensuring the effect of both strength and lightness.

[0029] In an optional embodiment: the cross steel sheet 4 is a horizontal plate and a vertical plate, and the outer edges of the horizontal plate and the vertical plate are fixedly mounted on the inner wall of the inner tube 2. In an optional embodiment: the connection between the horizontal plate and the vertical plate is located at the center of the horizontal plate and the vertical plate

[0030] It should be noted that by evenly arranging multiple cross steel sheets 4 inside the inner tube 2, the inner tube 2 is further supported from the inside by the cross steel sheets 4, and the force transmitted to the inner tube 2 from the outside is shared by the cross steel sheets 4, thereby further reducing the probability of pipeline deformation when subjected to pressure.

[0031] Working principle: by installing V-shaped steel sheets 3 connected end to end between the inner tube 2 and the outer tube 1, a plurality of continuous triangular grooves can be formed between the inner tube 2 and the outer tube 1 through the V-shaped steel sheets 7. The stability of the triangle can greatly increase the probability of the pipeline being deformed left and right under external pressure, and the design of the multiple hollow grooves inside ensures that the overall compressive strength is improved while the overall mass is not increased too much, thereby ensuring the effect of both strength and lightness. By evenly arranging a plurality of cross steel sheets 4 inside the inner tube 2, the inner tube 2 is further supported from the inside by the cross steel sheets 4, and the force transmitted to the inner tube 2 from the outside is shared by the cross steel sheets 4, thereby further reducing the probability of the pipeline being deformed when under pressure.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A compression-resistant steel pipe, comprising an outer pipe (1) and an inner pipe (2), characterized in that: The inner tube (2) is located inside the outer tube (1), a V-shaped steel sheet (3) is fixedly installed between the outer tube (1) and the inner tube (2), and a cross steel sheet (4) is fixedly installed on the inner side of the inner tube (2).

2. A compression-resistant steel pipe according to claim 1, characterized in that: The outer tube (1) is cocentric with the inner tube (2), and the intervals between the outer tube (1) and the inner tube (2) are uniform and the same.

3. A compression-resistant steel pipe according to claim 1, characterized in that: The angled ends of the V-shaped steel sheets (3) are fixedly mounted on the outer wall of the inner tube (2), the outer ends of the V-shaped steel sheets (3) are fixedly mounted on the inner wall of the outer tube (1), and the outer end surfaces of adjacent V-shaped steel sheets (3) are connected.

4. A compression-resistant steel pipe according to claim 3, characterized in that: The outer tube (1) and the inner tube (2) are connected to each other through V-shaped steel sheets (3) to form a plurality of triangular grooves.

5. The compression-resistant steel pipe according to claim 1, characterized in that: The cross steel sheets (4) are respectively a horizontal plate and a vertical plate, and the outer edges of the horizontal plate and the vertical plate are fixedly mounted on the inner wall of the inner tube (2).

6. A compression-resistant steel pipe according to claim 5, characterized in that: The connection between the horizontal board and the vertical board is located at the center of the horizontal board and the vertical board.

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