Novel seamless steel tube with precise inner diameter

Abstract

The utility model belongs to the technical field of novel precise inner diameter seamless steel pipes, and discloses a novel precise inner diameter seamless steel pipe which comprises a steel pipe body and a protective sleeve, inner holes are formed in the steel pipe body, internal threads are arranged on the surfaces of the inner holes in the two ends of the steel pipe body, an anti-corrosion layer is arranged on the outer surface of the steel pipe body, and a wear-resistant layer is arranged on the surface of the anti-corrosion layer. A connecting groove is formed in one side of the protective sleeve, a plugging block is installed on one side of the connecting groove, external threads are arranged on the outer wall of the plugging block, an installing groove is formed in one side of the connecting groove, and a sealing ring is installed in the installing groove. The device is simple and reasonable in structure, novel in design, capable of preventing dust and impurities from entering an inner hole of the seamless steel pipe to cause blockage of the seamless steel pipe in use, high in practicability and convenient to widely popularize and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of new precision inner diameter seamless steel pipes, and more specifically, particularly relates to new precision inner diameter seamless steel pipes. Background Art

[0002] The new precision inner diameter seamless steel pipe is a high-precision, high-finish steel pipe product. It is usually made by a special production process and has high dimensional accuracy and surface finish. The inner diameter size and shape are strictly controlled.

[0003] After production, some of the new precision inner diameter seamless steel pipes are usually piled up in the processing workshop. However, the environment of the processing workshop is poor and contains more dust and impurities. These dust and impurities can easily enter the inner hole of the seamless steel pipe, which can easily cause blockage of the seamless steel pipe in subsequent use and affect its use effect.

[0004] Therefore, in view of this, the existing structure and deficiencies are studied and improved, and a new type of precision inner diameter seamless steel pipe is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a new type of precision inner diameter seamless steel pipe, which is achieved by the following specific technical means:

[0006] A new type of precision inner diameter seamless steel pipe comprises a steel pipe body and a protective sleeve, wherein the steel pipe body is provided with an inner hole, the inner hole surfaces at both ends of the steel pipe body are provided with internal threads, the outer surface of the steel pipe body is provided with an anti-corrosion layer, the surface of the anti-corrosion layer is provided with a wear-resistant layer, a connecting groove is provided on one side of the protective sleeve, a sealing block is installed on one side of the connecting groove, an outer wall of the sealing block is provided with external threads, an installation groove is provided on one side of the connecting groove, and a sealing ring is installed in the installation groove.

[0007] Furthermore, the anti-corrosion layer is made of galvanized material.

[0008] Furthermore, the wear-resistant layer is made of polyethylene material.

[0009] Furthermore, the protective sleeve is made of plastic material.

[0010] Furthermore, the blocking block is made of metal material.

[0011] Furthermore, the dimensions of the two ends of the steel pipe body match the dimensions of the protective sleeve.

[0012] Furthermore, the size of the blocking block matches the size of the inner holes at both ends of the steel pipe body.

[0013] Furthermore, the internal thread on the surface of the inner hole matches the external thread on the surface of the blocking block.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] Through the coordinated use of the protective sleeve, the sealing block, the external thread, the internal thread and the sealing ring, when the steel pipe body is processed, the protective sleeve is put on one end of the steel pipe body, and then the protective sleeve is rotated. The protective sleeve drives the sealing block to rotate. Since the external thread on the surface of the sealing block matches the internal thread on the surface of the inner hole, the sealing block moves toward the inside of the inner hole when rotating, so that one side of the sealing ring fits with the surface of one end of the steel pipe body, thereby achieving an effective sealing effect on the inner hole, thereby preventing dust and impurities from entering the inner hole of the seamless steel pipe and causing blockage of the seamless steel pipe during use.

[0016] Through the coordinated use of anti-corrosion layer and wear-resistant layer, the material of the anti-corrosion layer is galvanized material, which can effectively protect the surface of the steel pipe body from corrosion erosion in the atmosphere, water and soil. Zinc reacts with oxygen, water and carbon dioxide to form a dense zinc oxide layer, forming a physical and electrochemical dual protection, thereby extending the service life of the steel pipe body. The material of the wear-resistant layer is polyethylene material, which has a low friction coefficient, which means that when the steel pipe body comes into contact with other materials, it can reduce friction loss and reduce energy consumption. The polyethylene material also has good scratch resistance and can effectively resist scratches and wear from external objects, reduce wear and damage on the surface of the steel pipe body, and maintain the overall beauty and functionality of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0018] Figure 2 It is a front view cross-sectional schematic diagram of the utility model.

[0019] Figure 3 It is a side cross-sectional schematic diagram of the steel pipe body in the utility model.

[0020] Figure 4 This utility model Figure 2 A is an enlarged schematic diagram.

[0021] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0022] 1. Steel pipe body; 101. Anti-corrosion layer; 102. Wear-resistant layer; 2. Protective sleeve; 201. Connection groove; 202. Installation groove; 3. Inner hole; 301. Internal thread; 4. Sealing block; 401. External thread; 5. Sealing ring. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example:

[0027] As attached Figure 1 To Attachment Figure 4 As shown:

[0028] The utility model provides a new type of precision inner diameter seamless steel pipe, including a steel pipe body 1 and a protective sleeve 2, the steel pipe body 1 is provided with an inner hole 3, the surfaces of the inner hole 3 at both ends of the steel pipe body 1 are provided with internal threads 301, the outer surface of the steel pipe body 1 is provided with an anti-corrosion layer 101, the surface of the anti-corrosion layer 101 is provided with a wear-resistant layer 102, one side of the protective sleeve 2 is provided with a connecting groove 201, one side of the connecting groove 201 is installed with a blocking block 4, the outer wall of the blocking block 4 is provided with an external thread 401, one side of the connecting groove 201 is provided with an installation groove 202, and a sealing ring 5 is installed in the installation groove 202, and the sealing effect can be increased by the sealing ring 5.

[0029] Among them, the material of the anti-corrosion layer 101 is galvanized material, which can effectively protect the surface of the steel pipe body 1 from corrosion erosion in the atmosphere, water and soil. Zinc reacts with oxygen, water and carbon dioxide to form a dense zinc oxide layer, forming a dual physical and electrochemical protection, thereby extending the service life of the steel pipe body 1.

[0030] Among them, the material of the wear-resistant layer 102 is polyethylene material, which has a low friction coefficient, which means that when the steel pipe body 1 contacts other materials, it can reduce friction loss and reduce energy consumption. The polyethylene material also has good anti-scratch performance and can effectively resist scratches and wear from external objects, reduce wear and damage on the surface of the steel pipe body 1, and maintain the overall beauty and functionality of the material.

[0031] The protective cover 2 is made of plastic material, which has a relatively light density and good strength, and has good corrosion resistance.

[0032] The blocking block 4 is made of metal.

[0033] The dimensions of both ends of the steel pipe body 1 match those of the protective sleeve 2, and the protective sleeve 2 can prevent dust and impurities from entering the inner hole 3 of the seamless steel pipe and causing blockage of the seamless steel pipe during use.

[0034] The size of the blocking block 4 matches the size of the inner holes 3 at both ends of the steel pipe body 1 . The blocking block 4 can increase the sealing effect and prevent the protective sleeve 2 from falling off.

[0035] Among them, the internal thread 301 on the surface of the inner hole 3 matches the external thread 401 on the surface of the blocking block 4. Since the external thread 401 on the surface of the blocking block 4 matches the internal thread 301 on the surface of the inner hole 3, the blocking block 4 moves toward the inside of the inner hole 3 when rotating.

[0036] The working principle of this embodiment:

[0037] When the steel pipe body 1 is processed, the protective sleeve 2 is put on one end of the steel pipe body 1, and then the protective sleeve 2 is rotated, and the protective sleeve 2 drives the blocking block 4 to rotate. Since the external thread 401 on the surface of the blocking block 4 matches the internal thread 301 on the surface of the inner hole 3, the blocking block 4 moves toward the inside of the inner hole 3 when rotating, so that one side of the sealing ring 5 fits with the surface of one end of the steel pipe body 1, thereby effectively sealing the inner hole 3, thereby preventing dust and impurities from entering the inner hole 3 of the seamless steel pipe and causing the seamless steel pipe to be blocked during use. The material of the anti-corrosion layer 101 is galvanized material, which can effectively protect The surface of the steel pipe body 1 is not subject to corrosion and erosion in the atmosphere, water and soil. Zinc reacts with oxygen, water and carbon dioxide to generate a dense zinc oxide layer, forming physical and electrochemical dual protection, thereby extending the service life of the steel pipe body 1. The wear-resistant layer 102 is made of polyethylene material. Polyethylene material has a low friction coefficient, which means that when the steel pipe body 1 contacts other materials, it can reduce friction loss and reduce energy consumption. Polyethylene material also has good anti-scratch properties and can effectively resist scratches and wear from external objects, reduce wear and damage on the surface of the steel pipe body 1, and maintain the overall beauty and functionality of the material.

[0038] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

Claims

1. A novel precision inner diameter seamless steel pipe, comprising a steel pipe body (1) and a protective sleeve (2), characterized in that: The steel pipe body (1) is provided with an inner hole (3), and the surfaces of the inner hole (3) at both ends of the steel pipe body (1) are provided with internal threads (301). The outer surface of the steel pipe body (1) is provided with an anti-corrosion layer (101), and the surface of the anti-corrosion layer (101) is provided with a wear-resistant layer (102). One side of the protective sleeve (2) is provided with a connecting groove (201), and a sealing block (4) is installed on one side of the connecting groove (201), and the outer wall of the sealing block (4) is provided with external threads (401). One side of the connecting groove (201) is provided with an installation groove (202), and a sealing ring (5) is installed in the installation groove (202).

2. The novel precision inner diameter seamless steel pipe as claimed in claim 1, characterized in that: The anti-corrosion layer (101) is made of galvanized material.

3. The novel precision inner diameter seamless steel pipe as claimed in claim 1 is characterized in that: The wear-resistant layer (102) is made of polyethylene material.

4. The novel precision inner diameter seamless steel pipe as claimed in claim 1, characterized in that: The material of the protective sleeve (2) is plastic material.

5. The novel precision inner diameter seamless steel pipe as claimed in claim 1, characterized in that: The material of the blocking block (4) is metal material.

6. The novel precision inner diameter seamless steel pipe as claimed in claim 1, characterized in that: The dimensions of the two ends of the steel pipe body (1) match the dimensions of the protective sleeve (2).

7. The novel precision inner diameter seamless steel pipe as claimed in claim 1, characterized in that: The size of the blocking block (4) matches the size of the inner holes (3) at both ends of the steel pipe body (1).

8. The novel precision inner diameter seamless steel pipe as claimed in claim 1, characterized in that: The internal thread (301) on the surface of the inner hole (3) matches the external thread (401) on the surface of the blocking block (4).

Images