Wear-resistant steel pipe

Abstract

The utility model discloses a wear-resistant steel pipe which comprises a main pipe, an expansion pipe and a locking mechanism. The main pipe is arranged, the expansion pipe is connected to the inner end of the main pipe, the expansion pipe can be stretched, the strength of the steel pipe can be enhanced when the expansion pipe is recycled, the length of the steel pipe can be increased when the expansion pipe extends, flexibility is high, functions are diversified, the locking mechanism is arranged at the outer front end of the main pipe, and the locking mechanism comprises the fixing ring, the cavity, the spring piece, the protrusion and the like. The expansion pipe can be fixed under mutual cooperation, the expansion pipe can be prevented from moving freely in the main pipe, the connection stability of the main pipe and the expansion pipe is improved, and high practicability is achieved.

Description

Technical Field

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

[0002] Steel pipe is a metal material made of steel with a hollow cross-section and a length much larger than the outer diameter (or side length). It is usually used to transport fluids and powdered solids, exchange heat energy, manufacture mechanical parts and containers, etc. The cross-section of a steel pipe is usually round, but it can also be flat, square, or special-shaped.

[0003] Some existing steel pipes have poor wear resistance and are prone to slipping during use, which has a certain impact on their strength and service life and has certain limitations. Utility Model Content

[0004] The purpose of the present invention is to provide a wear-resistant steel pipe to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the utility model adopts the following technical solution: a wear-resistant steel pipe, comprising a main pipe, a set of extension pipes being provided at the inner end of the main pipe, and a set of locking mechanisms being connected to the outer left end of the main pipe;

[0006] A frosted layer is provided on the outside of the main pipe, a protective coating is provided on the outside of the friction layer, and a group of through grooves are provided on the top end of the main pipe at a position corresponding to the locking mechanism.

[0007] Preferably, at least two groups of fixing grooves are provided at equal intervals at positions corresponding to the through grooves at the top end of the extension tube.

[0008] Preferably, the locking mechanism includes a fixing ring, a cavity, a spring sheet and a protrusion. The front end of the main pipe is connected to a group of fixing rings. The top end of the fixing ring is provided with a group of cavities. A group of spring sheets are provided in the cavities. The middle end of the spring sheet is provided with a protrusion.

[0009] Preferably, the bottom end of the protrusion can extend into the fixing groove through the through groove.

[0010] Preferably, the through groove and the fixing groove are both funnel-shaped.

[0011] Preferably, the outer side of the extension tube is frosted.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] A main pipe is provided, and an extension pipe is connected to the inner end of the main pipe. The extension pipe is stretchable, and the strength of the steel pipe can be enhanced when the extension pipe is retracted, and the length of the steel pipe can be extended when the extension pipe is extended. It has strong flexibility and diverse functions. A locking mechanism is provided at the front end of the main pipe. The locking mechanism includes components such as a fixing ring, a cavity, a spring sheet and a protrusion. The extension pipe can be fixed by cooperating with each other, and the extension pipe can be prevented from moving randomly in the main pipe, thereby improving the connection stability between the main pipe and the extension pipe, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the main pipe of the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the top view of the structure of the utility model;

[0018] Figure 5 This is a schematic structural diagram of the utility model;

[0019] Figure 6 This is a schematic diagram of the internal structure of the locking mechanism of the utility model.

[0020] In the figure: main pipe 1, extension pipe 2, locking mechanism 3, friction layer 11, protective coating 12, through groove 13, fixing groove 21, fixing ring 31, cavity 32, spring leaf 33, protrusion 34. DETAILED DESCRIPTION

[0021] In order to further explain the technical solution of the present invention, specific embodiments are described in detail below.

[0022] See also Figure 1 The utility model provides a wear-resistant steel pipe, including a main pipe 1, the inner end of which is slidably connected to a group of extension pipes 2. The main pipe 1 can be supported by the extension pipes 2 to improve the strength of the main pipe 1, or the length of the main pipe 1 can be extended by stretching the extension pipes 2. The outer left end of the main pipe 1 is connected to a group of locking mechanisms 3.

[0023] See also Figure 2-5 The utility model provides a wear-resistant steel pipe. A friction layer 11 is provided on the outside of the main pipe 1 to improve the wear resistance of the main pipe 1. A protective coating 12 is provided on the outside of the friction layer 11 to protect the main pipe 1 and extend its service life. A group of through grooves 13 are provided at the top end of the main pipe 1 corresponding to the position of the locking mechanism 3.

[0024] At the top of the extension tube 2, corresponding to the through slot 13, there are at least two sets of fixing slots 21 at equal intervals. Both the through slot 13 and the fixing slot 21 are funnel-shaped, which is beneficial to the movement of the spring piece 33. The outer surface of the extension tube 2 is frosted to increase friction and facilitate force application.

[0025] See also Figure 5-6 The present invention provides a wear-resistant steel pipe. The locking mechanism 3 includes a fixing ring 31, a cavity 32, a spring piece 33 and a protrusion 34. A group of fixing rings 31 are connected to the front end of the main pipe 1. A group of cavities 32 are opened at the top of the fixing ring 31. A group of spring pieces 33 are arranged in the cavity 32. A protrusion 34 is provided at the middle end of the spring piece 33. The bottom end of the protrusion 34 can extend into the fixing groove 21 through the through groove 13 to limit and fix the extension pipe 2.

[0026] Here’s how it works:

[0027] When in use, force can be applied to the front end of the extension tube 2 and rotated sideways so that the bottom end of the protrusion 34 is separated from the fixing groove 21. Then, after stretching the extension tube 2 to a suitable length, the extension tube 2 is rotated in the opposite direction so that the protrusion 34 falls back into the fixing groove 21, thereby fixing the extension tube 2 and improving the connection stability between the main tube 1 and the extension tube 2.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wear-resistant steel pipe, characterized by: It comprises a main pipe (1), the inner end of the main pipe (1) is provided with a set of extension pipes (2), and the outer left end of the main pipe (1) is connected with a set of locking mechanisms (3); A friction layer (11) is provided on the outside of the main pipe (1), a protective coating (12) is provided on the outside of the friction layer (11), and a group of through grooves (13) are provided at the top end of the outside of the main pipe (1) corresponding to the position of the locking mechanism (3).

2. The wear-resistant steel pipe according to claim 1, characterized in that: At least two groups of fixing grooves (21) are provided at equal intervals at the top end of the extension tube (2) corresponding to the through groove (13).

3. The wear-resistant steel pipe according to claim 1, characterized in that: The locking mechanism (3) comprises a fixing ring (31), a cavity (32), a spring sheet (33) and a protrusion (34). The front end of the main pipe (1) is connected to a set of fixing rings (31). The top end of the fixing ring (31) is provided with a set of cavities (32). The cavity (32) is provided with a set of spring sheets (33). The middle end of the spring sheet (33) is provided with a protrusion (34).

4. The wear-resistant steel pipe according to claim 3, characterized in that: The bottom end of the protrusion (34) can extend into the fixing groove (21) through the through groove (13).

5. The wear-resistant steel pipe according to claim 4, characterized in that: The through groove (13) and the fixed groove (21) are both funnel-shaped.

6. The wear-resistant steel pipe according to claim 2, characterized in that: The outer side of the extension tube (2) is frosted.

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