Bending-resistant wear-resistant steel pipe

Abstract

The utility model discloses an anti-bending wear-resistant steel pipe in the technical field of steel pipes, which comprises a steel pipe main body, a wear-resistant sleeve is sleeved outside the steel pipe main body, and an anti-bending inner pipe is assembled inside the steel pipe main body; anti-bending strips are evenly assembled on the outer wall of the steel pipe body along the axis of the steel pipe body, and strip clamping grooves are evenly formed in the inner wall of the abrasion-resistant sleeve along the axis of the abrasion-resistant sleeve. The positions of the anti-bending strips and the clamping strip grooves are in one-to-one correspondence, and the anti-bending strips are clamped in the clamping strip grooves; four reinforcing ribs are assembled on the inner wall of the steel pipe main body, four guide grooves are formed in the outer wall of the anti-bending inner pipe, and the reinforcing ribs are inserted into the guide grooves; the bending-resistant and wear-resistant steel pipe is reasonable in arrangement and structural design, the wear-resistant sleeve is arranged outside the steel pipe body, the multiple bending-resistant strips are arranged between the wear-resistant sleeve and the steel pipe body, the bending-resistant inner pipe is arranged in the steel pipe body, and connecting and assembling are conducted through the reinforcing ribs and the guide grooves, so that the overall bending strength of the steel pipe body is improved; and the adaptability is higher.

Description

TECHNICAL FIELD

[0001] The patent relates to the technical field of steel pipes, in particular to a bending-resistant and wear-resistant steel pipe. BACKGROUND

[0002] Steel pipes are not only used for conveying fluid and powdery solid, exchanging heat energy, manufacturing mechanical parts and containers, but also are an economical steel material. Manufacturing building structure net racks, pillars and mechanical supports by using steel pipes can reduce weight, save metal by 20-40%, and realize factory mechanized construction. Manufacturing highway bridges by using steel pipes can not only save steel material and simplify construction, but also greatly reduce the area of protective layer, save investment and maintenance cost.

[0003] However, the steel pipe in the prior art still has some deficiencies, for example, the shape of the steel pipe is various, most of the steel pipes are simple pipe body structures, but the bending-resistant and torsion-resistant strength of such structure is poor, if a material with better hardness is used, it is not easy to process, and the existing steel pipe is difficult to meet some special use requirements, so the prior art needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] The patent aims to provide a bending-resistant and wear-resistant steel pipe to solve the problem that the shape of the steel pipe is various, most of the steel pipes are simple pipe body structures, but the bending-resistant and torsion-resistant strength of such structure is poor, if a material with better hardness is used, it is not easy to process, and the existing steel pipe is difficult to meet some special use requirements.

[0005] To achieve the above-mentioned purpose, the patent provides the following technical scheme: a bending-resistant and wear-resistant steel pipe, comprising a steel pipe body, an outer wear-resistant sleeve of the steel pipe body, and a bending-resistant inner pipe assembled in the steel pipe body.

[0006] An outer wall of the steel pipe body is uniformly provided with bending-resistant strips along the axis, and an inner wall of the wear-resistant sleeve is uniformly provided with clamping strip grooves along the axis.

[0007] The bending-resistant strips and the clamping strip grooves are one-to-one corresponding, and the bending-resistant strips are clamped in the clamping strip grooves.

[0008] An inner wall of the steel pipe body is provided with four reinforcing ribs, an outer wall of the bending-resistant inner pipe is provided with four guide grooves, and the reinforcing ribs are inserted into the guide grooves.

[0009] An end of the steel pipe body is provided with a hard pipe, and an end of the hard pipe is provided with a vertical pipe.

[0010] Preferably, the vertical pipe and the hard pipe are connected through a connecting structure, and the connecting structure comprises a metal pipe, a rubber ring, a clamping block and an L-shaped groove.

[0011] The metal pipe is connected to the hard pipe, the rubber ring is installed in the vertical pipe, the clamping block is installed on the outer wall of the metal pipe, the L-shaped slot is arranged on the rubber ring, the L-shaped slot is arranged on the metal pipe, the metal pipe is inserted into the rubber ring, and the clamping block is clamped in the L-shaped slot.

[0012] Preferably, the clamping block is provided with a groove, a spring is installed in the groove, a ball is installed on the spring, and an arc-shaped slot is arranged on the L-shaped slot.

[0013] Preferably, the end surface of the anti-bending inner pipe is provided with four positioning holes.

[0014] Preferably, the positions of each of the reinforcing ribs and each of the guide grooves are one-to-one corresponding, and the included angle between each adjacent two reinforcing ribs is 90°.

[0015] Preferably, the inner side of the wear-resistant sleeve pipe is provided with an alloy wear-resistant layer, the inner side of the alloy wear-resistant layer is coated with a glass fiber layer, and the inner side of the glass fiber layer is coated with a corrosion-resistant layer.

[0016] Compared with the prior art, the anti-bending wear-resistant steel pipe has the advantages that the structure design is reasonable;

[0017] 1. By arranging the wear-resistant sleeve pipe outside the steel pipe body, a plurality of anti-bending ribs between the wear-resistant sleeve pipe and the steel pipe body, and an anti-bending inner pipe inside the steel pipe body, and connecting and assembling through the reinforcing ribs and the guide grooves, the overall anti-bending strength of the steel pipe body is increased, and the adaptability is stronger.

[0018] 2. The wear-resistant sleeve pipe arranged outside the steel pipe body has the advantages of low manufacturing cost, high strength, high hardness, high wear resistance, corrosion resistance, and pressure resistance, and is suitable for use in harsh environments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The structure of the patent is shown in the structure of the patent;

[0020] Figure 2 The steel pipe body of the patent is shown in the structure of the patent;

[0021] Figure 3 The anti-bending inner pipe of the patent is shown in the structure of the patent;

[0022] Figure 4 The metal pipe, rubber ring and clamping block structure of the patent are shown in the structure of the patent;

[0023] Figure 5 The recess, spring and ball structure of the patent are shown in the structure of the patent;

[0024] Figure 6 The wear-resistant sleeve pipe structure of the patent is shown in the structure of the patent.

[0025] In the figure: 1, steel pipe body, 2, wear-resistant sleeve, 201, alloy wear-resistant layer, 202, glass fiber layer, 203, anticorrosive layer, 3, clamping groove, 4, connecting structure, 401, metal pipe, 402, rubber ring, 403, clamping block, 404, L-shaped groove, 5, vertical pipe, 6, hard pipe, 7, bending-resistant inner pipe, 8, reinforcing rib, 9, bending-resistant strip, 10, guide groove, 11, groove, 12, spring, 13, ball, 14, arc-shaped groove, 15, positioning hole. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present patent will be clearly and completely described below with reference to the drawings in the embodiments of the present patent. Obviously, the described embodiments are only part of the embodiments of the present patent, rather than all the embodiments. Based on the embodiments in the present patent, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present patent.

[0027] Please refer to Figures 1-6 , the present patent provides a technical solution:

[0028] In the technical solution, the anti-bending wear-resistant steel pipe comprises a steel pipe body 1, a wear-resistant sleeve 2 is sleeved on the outer part of the steel pipe body 1, and a bending-resistant inner pipe 7 is arranged in the inner part of the steel pipe body 1. The wear-resistant sleeve 2 and the bending-resistant inner pipe 7 are integrally formed and are preformed parts.

[0029] The bending-resistant strips 9 are uniformly arranged on the outer wall of the steel pipe body 1 along the axis, and the clamping grooves 3 are uniformly formed on the inner wall of the wear-resistant sleeve 2 along the axis, so that the bending-resistant strength of the steel pipe body 1 is increased, and the adaptability is stronger.

[0030] The bending-resistant strips 9 and the clamping grooves 3 are one-to-one corresponding, and the bending-resistant strips 9 are clamped in the clamping grooves 3.

[0031] Four reinforcing ribs 8 are arranged on the inner wall of the steel pipe body 1, four guide grooves 10 are formed on the outer wall of the bending-resistant inner pipe 7, the reinforcing ribs 8 are inserted into the guide grooves 10, and the gap between the steel pipe body 1 and the bending-resistant inner pipe 7 is formed by pouring.

[0032] The hard pipe 6 is arranged at the end of the steel pipe body 1, and the vertical pipe 5 is arranged at the end of the hard pipe 6.

[0033] In some technical solutions, referring to Figure 1 , Figure 2 and Figure 3 , the vertical pipe 5 and the hard pipe 6 are connected through the connecting structure 4, and the connecting structure 4 comprises a metal pipe 401, a rubber ring 402, a clamping block 403 and an L-shaped groove 404.

[0034] The metal pipe 401 is connected to the hard pipe 6, the rubber ring 402 is installed in the vertical pipe 5, the clamping block 403 is installed on the outer wall of the metal pipe 401, the L-shaped groove 404 is arranged on the rubber ring 402, the L-shaped groove 404 is arranged on the metal pipe 401, the metal pipe 401 is inserted into the rubber ring 402, and the clamping block 403 is clamped in the L-shaped groove 404.

[0035] The clamping block 403 is provided with a groove 11, a spring 12 is installed in the groove 11, a ball 13 is installed on the spring 12, an arc-shaped groove 14 is arranged on the L-shaped groove 404, and the ball 13 is clamped in the arc-shaped groove 14.

[0036] In this technical scheme, the rubber ring 402 is made of fluororubber material, has corrosion resistance and acid and alkali resistance, and the arc-shaped groove 14 is arranged in the L-shaped groove 404 on the vertical pipe 5.

[0037] In some technical schemes, referring to Figures 1-4 , four positioning holes 15 are arranged on the end face of the bending-resistant inner pipe 7;

[0038] In this technical scheme, the positioning holes 15 are arranged to position the installation of the hard pipe 6.

[0039] In some technical schemes, referring to Figures 1-4 Each reinforcing rib 8 and each guide groove 10 are one-to-one corresponding in position, and the included angle between each adjacent two reinforcing ribs 8 is 90°.

[0040] In some technical schemes, referring to Figures 1-4 The inner side of the wear-resistant sleeve pipe 2 has an alloy wear-resistant layer 201, the inner side of the alloy wear-resistant layer 201 is coated with a glass fiber layer 202, and the inner side of the glass fiber layer 202 is coated with a corrosion-resistant layer 203.

[0041] In this technical scheme, the alloy wear-resistant layer 201 is 10mm-15mm; the thickness of the glass fiber layer 202 is 2-3 times the thickness of the alloy wear-resistant layer 201; the corrosion-resistant layer 203 is made of titanium nano-modified corrosion-resistant paint, and the thickness is 3mm-5mm; the thickness of the wear-resistant sleeve pipe inner wall layer is 10mm-12mm.

[0042] Working principle: the anti-bending inner tube 7 goes in and out of the inside of the steel pipe body 1 with the cooperation of the reinforcing rib 8 and the guide groove 10, and the wear-resistant sleeve 2 is sleeved on the outside of the steel pipe body 1 with the cooperation of the anti-bending strip 9 and the clamping groove 3, then the gap is cast and formed, the hard pipe 6 with the metal pipe 401 is inserted into the rubber ring 402 on the vertical pipe 5, so that the hard pipe 6 is sealingly connected with the vertical pipe 5, with the metal pipe 401 inserted into the rubber ring 402 on the vertical pipe 5, the clamping block 403 is clamped into the L-shaped groove 404, then the metal pipe 401 is rotated, the clamping block 403 is clamped into the root position of the L-shaped groove 404, at this time the spring 12 in the groove 11 gives the round ball 13 an outward force, the round ball 13 is clamped into the arc-shaped groove 14, enhancing the connection stability of the hard pipe 6 and the vertical pipe 5, and a flange plate can be arranged outside the vertical pipe 5 to connect with other steel pipes.

[0043] It is to be noted that the relative terms such as first and second, and the like, are used herein only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements recited, but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0044] Although the present patent has been described with reference to the embodiments above, various modifications can be made thereto without departing from the scope of the present patent, and equivalent components can be substituted therefor. In particular, features of the disclosed embodiments of the present patent can be combined together in any manner, provided that there is no structural conflict, and the fact that such combinations are not described in the specification is merely for the purpose of omitting the description and saving resources. Therefore, the present patent is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A bend-resistant and wear-resistant steel pipe, comprising a steel pipe body (1), characterized in that: The steel pipe body (1) is fitted with a wear-resistant sleeve (2) on the outside, and the steel pipe body (1) is fitted with an anti-bending inner tube (7) inside. The outer wall of the steel pipe body (1) is uniformly fitted with anti-bending strips (9) along its axis, and the inner wall of the wear-resistant sleeve (2) is uniformly provided with clamping grooves (3) along its axis. The positions of the bending strip (9) and the clamping groove (3) are in one-to-one correspondence, and the bending strip (9) is snapped into the clamping groove (3); The inner wall of the steel pipe body (1) is equipped with four reinforcing ribs (8), and the outer wall of the anti-bending inner pipe (7) is provided with four guide grooves (10), and the reinforcing ribs (8) are inserted into the guide grooves (10). The end of the steel pipe body (1) is fitted with a rigid pipe (6), and the end of the rigid pipe (6) is fitted with a vertical pipe (5).

2. The bend-resistant and wear-resistant steel pipe according to claim 1, characterized in that: The vertical pipe (5) and the rigid pipe (6) are connected by a connecting structure (4), which includes a metal pipe (401), a rubber ring (402), a clamping block (403) and an L-shaped groove (404). The metal tube (401) is connected to the rigid tube (6), the rubber ring (402) is installed inside the vertical tube (5), the locking block (403) is installed on the outer wall of the metal tube (401), the L-shaped groove (404) is opened on the rubber ring (402), the L-shaped groove (404) is opened on the metal tube (401), the metal tube (401) is inserted into the rubber ring (402), and the locking block (403) is locked in the L-shaped groove (404).

3. The bend-resistant and wear-resistant steel pipe according to claim 2, characterized in that: The card block (403) has a groove (11) and a spring (12) is installed in the groove (11). A ball (13) is installed on the spring (12). An arc groove (14) is opened on the L-shaped groove (404) and the ball (13) is engaged in the arc groove (14).

4. The bend-resistant and wear-resistant steel pipe according to claim 1, characterized in that: The end face of the bending inner tube (7) is provided with four positioning holes (15).

5. The bend-resistant and wear-resistant steel pipe according to claim 1, characterized in that: The positions of each of the reinforcing ribs (8) and each of the guide grooves (10) are in one-to-one correspondence, and the included angle between each two adjacent reinforcing ribs (8) is 90°.

6. The bend-resistant and wear-resistant steel pipe according to claim 1, characterized in that: The wear-resistant sleeve (2) has an alloy wear-resistant layer (201) on its inner side, a glass fiber layer (202) is coated on the inner side of the alloy wear-resistant layer (201), and an anti-corrosion layer (203) is coated on the inner side of the glass fiber layer (202).

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