Compression-resistant precision steel pipe

Abstract

According to the compression-resistant precision steel pipe, two positioning rings are symmetrically arranged in a steel pipe body, two butt-joint rings are symmetrically arranged at the two ends of the steel pipe body, butt-joint plates are arranged at the outer ends of the butt-joint rings, and the butt-joint rings can be inserted into the steel pipe body and make contact with the positioning rings; a plurality of grooves and reinforcing ribs are arranged on the outer wall of the steel pipe body, the reinforcing ribs are located in the grooves, a plurality of limiting holes are formed in the peripheral side of the butt joint plate, the two ends of each reinforcing rib can be inserted into the corresponding limiting hole, the steel pipe body is composed of an inner reinforcing layer and an outer toughness layer, the reinforcing layer made of alloy steel provides high-strength support, and the reinforcing ribs are made of steel. External pressure can be effectively resisted, and steel pipe deformation is prevented; the ductile layer made of low-carbon steel endows the steel pipe with good toughness, pressure impact can be buffered, brittle fracture is avoided, and the compressive property of the steel pipe is essentially improved through combination of the ductile layer and the steel pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe technical field, concretely is a kind of compression type precision steel pipe. BACKGROUND

[0002] Precision steel pipe is a kind of steel pipe, and it has high precision of inner and outer diameter size, good roundness, low surface roughness, and good straightness and wall thickness uniformity, and it is widely used in various fields;

[0003] The existing precision steel pipe is single in structure, and the compression effect is poor when using, so when the pressure on itself is too large, the precision steel pipe is easily damaged, and then the stability of the precision steel pipe in use is affected. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a compression type precision steel pipe.

[0006] (II) technical scheme

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a compression type precision steel pipe, comprising a steel pipe body, the steel pipe body is composed of a reinforcing layer and a ductility layer from inside to outside;

[0008] Two positioning rings are symmetrically arranged in the inside of the steel pipe body, and two butt rings are symmetrically arranged at both ends of the steel pipe body, the outer end of the butt ring is provided with a butt plate, the butt ring can be inserted into the inside of the steel pipe body and contact the positioning ring;

[0009] A plurality of grooves and reinforcing ribs are arranged on the outer wall of the steel pipe body, and the reinforcing rib is located in the inside of the groove, a plurality of limiting holes are arranged on the circumferential side of the butt plate, and the two ends of the reinforcing rib can be inserted into the inside of the limiting hole.

[0010] In order to make the butt ring more firmly installed in the steel pipe body, the utility model improves that a plurality of positioning holes are arranged on the positioning ring, and a plurality of positioning rods are arranged on the butt ring and inserted into the inside of the positioning hole.

[0011] Further, the utility model improves that a protective sleeve is further arranged on the outer wall of the steel pipe body, and the protective sleeve can wrap the reinforcing rib and the steel pipe body.

[0012] Further, the utility model improves that the butt plate, the butt ring and the positioning rod are of an integrated structure, and the positioning ring is welded on the inner wall of the steel pipe body.

[0013] Further, the utility model improves that the plurality of positioning rods and reinforcing ribs are of cylindrical structure.

[0014] Further, the improvement of the utility model has, the material of the ductility layer is low carbon steel, the material of the reinforcing layer is alloy steel, the protective sleeve adopts rubber sleeve.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a kind of compression-resistant precision steel pipe, with following beneficial effects:

[0017] Steel pipe body is composed of inner reinforcing layer and outer ductility layer, and the reinforcing layer of alloy steel material provides high-strength support, can effectively resist external pressure, prevent steel pipe deformation;The ductility layer of low carbon steel material gives steel pipe good toughness, can buffer pressure impact, avoid brittle fracture, and the combination of both improves the compression resistance of steel pipe from material essence;

[0018] The reinforcing rib on outer wall is located in groove, and this structural design increases the radial bearing capacity of steel pipe.When steel pipe is subjected to external pressure, reinforcing rib can disperse pressure, so that steel pipe can bear load more evenly, and further improve compression strength;

[0019] The butt joint ring of both ends of steel pipe can be inserted into the inside of steel pipe body and contact positioning ring, and accurate positioning is realized by the cooperation of positioning rod and positioning hole, which facilitates the butt joint of steel pipe in installation process, guarantees the accuracy and stability of connection, and can improve the strength of butt joint of steel pipe body. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model;

[0021] Fig. 2 It is the plane view of the utility model;

[0022] Fig. 3 It is the sectional view of steel pipe body in the utility model;

[0023] In the drawing: 1, steel pipe body;2, positioning ring;3, positioning hole;4, butt joint ring;5, positioning rod;6, butt joint plate;7, groove;8, reinforcing rib;9, limit hole;10, protective sleeve;11, ductility layer;12, reinforcing layer. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figs. 1-3 The utility model discloses a kind of compression-resistant precision steel pipes, including steel pipe body 1, the steel pipe body 1 is from inside to outside by reinforcing layer 12 and ductility layer 11 composition;

[0026] The inside of the steel pipe body 1 is symmetrically provided with two positioning rings 2, and the two ends of the steel pipe body 1 are symmetrically provided with two butt rings 4, the outer end of the butt ring 4 is provided with a butt plate 6, the butt ring 4 can be inserted into the inside of the steel pipe body 1 and contact the positioning ring 2.

[0027] The outer wall of the steel pipe body 1 is provided with a plurality of grooves 7 and reinforcing ribs 8, and the reinforcing rib 8 is located inside the groove 7, the circumferential side of the butt plate 6 is provided with a plurality of limiting holes 9, and the two ends of the reinforcing rib 8 can be inserted into the inside of the limiting hole 9.

[0028] In this embodiment, a plurality of positioning holes 3 are provided on the positioning ring 2, and a plurality of positioning rods 5 are provided on the butt ring 4 and inserted into the inside of the positioning hole 3, which can make the butt ring 4 more firmly installed in the steel pipe body 1.

[0029] In this embodiment, the outer wall of the steel pipe body 1 is also provided with a protective sleeve 10, which can wrap the reinforcing rib 8 and the steel pipe body 1. By providing the protective sleeve 10, a buffer effect can be provided to the outer wall of the steel pipe body 1, which can buffer the pressure received by the outer wall of the steel pipe body 1.

[0030] In this embodiment, the butt plate 6, the butt ring 4 and the positioning rod 5 are of an integrated structure, and the positioning ring 2 is welded to the inner wall of the steel pipe body 1.

[0031] In this embodiment, the plurality of positioning rods 5 and reinforcing ribs 8 are of a cylindrical structure.

[0032] In this embodiment, the material of the ductility layer 11 is low-carbon steel, the material of the reinforcing layer 12 is alloy steel, and the protective sleeve 10 is made of rubber sleeve.

[0033] The ductility layer 11 and the reinforcing layer 12 are prepared by a specific process. Since the material of the ductility layer 11 is low-carbon steel, the ductility and processing performance of low-carbon steel are utilized to form the preliminary form of the ductility layer 11 by rolling, drawing and other processes. For the reinforcing layer 12, since the material is alloy steel, the characteristics of high strength and high hardness of alloy steel are utilized to prepare it by a similar process, and then the reinforcing layer 12 is combined with the ductility layer 11 to form the steel pipe body 1 from inside to outside, ensuring that the two layers are tightly combined.

[0034] The steel pipe body 1 is composed of an inner reinforcing layer 12 and an outer ductile layer 11. The reinforcing layer 12 made of alloy steel provides high strength support, which can effectively resist external pressure and prevent the steel pipe from deforming. The ductile layer 11 made of low-carbon steel endows the steel pipe with good ductility, which can buffer pressure impact and avoid brittle fracture. The combination of the two improves the pressure resistance of the steel pipe from the material essence.

[0035] A positioning ring 2 is symmetrically welded inside the steel pipe body 1. The welding process needs to ensure the accurate position of the positioning ring 2 and good adhesion with the inner wall of the steel pipe body 1. A plurality of positioning holes 3 are drilled on the positioning ring 2. A positioning rod 5 is connected with a butt joint ring 4. The butt joint ring 4 is connected with a butt joint plate 6 at one end, and the position of the positioning rod 5 is ensured to correspond to the positioning holes 3 on the positioning ring 2 with size matching. The butt joint ring 4 is inserted into the inside of the steel pipe body 1, and the positioning rod 5 is inserted into the positioning holes 3 on the positioning ring 2, realizing the accurate positioning and preliminary connection of the butt joint ring 4 and the positioning ring 2. When the butt joint ring 4 is installed on the steel pipe body 1, the butt joint ring 4 is welded at both ends of the steel pipe body 1. The butt joint ring 4 at both ends of the steel pipe can be inserted into the inside of the steel pipe body 1 and contact the positioning ring 2, and accurate positioning is realized through the cooperation of the positioning rod 5 and the positioning hole 3, which facilitates the butt joint of the steel pipe during installation, ensures the accuracy and stability of the connection, and improves the strength of the butt joint of the steel pipe body 1.

[0036] The reinforcing rib 8 is embedded in the groove 7 to ensure that the reinforcing rib 8 tightly matches the groove 7, thereby enhancing the pressure resistance of the steel pipe body 1.

[0037] The two ends of the reinforcing rib 8 are inserted into the limiting hole 9 on the side of the butt joint plate 6, further fixing the reinforcing rib 8 and enhancing the stability of the overall structure of the steel pipe.

[0038] The rubber sleeve is selected as the protective sleeve 10. According to the size of the steel pipe body 1, the protective sleeve 10 is sleeved on the outer wall of the steel pipe body 1, completely wrapping the reinforcing rib 8 and the steel pipe body 1, thereby providing additional protection for the steel pipe.

[0039] The reinforcing rib 8 on the outer wall is located in the groove 7, which increases the radial bearing capacity of the steel pipe. When the steel pipe is subjected to external pressure, the reinforcing rib 8 can disperse the pressure, so that the steel pipe can bear the load more uniformly, further improving the pressure resistance.

[0040] In the description of the text, it needs to be explained that the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0041] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application.

Claims

1. A precision steel tube of the pressure-resistant type comprising a steel tube body (1), characterized in that: The steel pipe body (1) is composed of a reinforcing layer (12) and a toughness layer (11) from inside to outside; Two positioning rings (2) are symmetrically arranged inside the steel pipe body (1), and two butt rings (4) are symmetrically arranged at both ends of the steel pipe body (1), the outer end of the butt ring (4) is provided with a butt plate (6), the butt ring (4) can be inserted into the inside of the steel pipe body (1) and contact the positioning ring (2); A plurality of grooves (7) and reinforcing ribs (8) are arranged on the outer wall of the steel pipe body (1), and the reinforcing rib (8) is located in the groove (7), a plurality of limiting holes (9) are arranged on the side of the butt plate (6), and the two ends of the reinforcing rib (8) can be inserted into the inside of the limiting hole (9).

2. A precision steel tube of the kind defined in claim 1, characterised in that: A plurality of positioning holes (3) are arranged on the positioning ring (2), and a plurality of positioning rods (5) are arranged on the butt ring (4) and inserted into the inside of the positioning hole (3).

3. A precision steel tube of the kind defined in claim 2, characterised in that: A protective sleeve (10) is further arranged on the outer wall of the steel pipe body (1), which can wrap the reinforcing rib (8) and the steel pipe body (1).

4. A precision steel tube of the kind defined in claim 3, characterised in that: The butt plate (6), the butt ring (4) and the positioning rod (5) are an integral structure, and the positioning ring (2) is welded on the inner wall of the steel pipe body (1).

5. A precision steel tube of the kind defined in claim 4, characterised in that: The plurality of positioning rods (5) and reinforcing ribs (8) are cylindrical structures.

6. A precision steel tube of the kind defined in claim 5, characterised in that: The material of the toughness layer (11) is low carbon steel, the material of the reinforcing layer (12) is alloy steel, and the protective sleeve (10) is a rubber sleeve.

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