Carbon steel pipeline convenient to splice

Abstract

The utility model relates to the technical field of carbon steel pipelines, in particular to a carbon steel pipeline convenient to splice, which comprises a carbon steel pipe body, the carbon steel pipe body is composed of a first carbon steel pipe and a second carbon steel pipe which are vertically connected and distributed, the lower end of the carbon steel pipe body is fixedly connected with a connecting ring, and the upper end of the carbon steel pipe body is provided with an inserting groove. The first carbon steel pipe slides towards the direction of the second carbon steel pipe, the connecting ring slides into the inserting groove till the protruding block abuts against the buffering plate, the protruding block continues to slide, the buffering plate slides into the sliding cavity, the limiting spring is further compressed till the protruding block slides into the limiting ring groove, and the first carbon steel pipe enables the protruding block to rotate in the limiting ring groove; the protruding blocks and the guide grooves are staggered, under the elastic force of the limiting springs, the first carbon steel pipe is prevented from easily displacing towards the second carbon steel pipe, the first carbon steel pipe and the second carbon steel pipe are convenient to disassemble through the arrangement of the positioning blocks, disassembly and assembly operation is simple, and the working efficiency of workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon steel pipes, and particularly relates to a carbon steel pipe convenient for splicing. Background Technique

[0002] Carbon steel pipes are made by piercing steel ingots or solid round steel into capillary tubes, and then by hot rolling, cold rolling or cold drawing. Carbon steel pipes play an important role in the steel pipe industry in our country. The purpose of splicing carbon steel pipes is to form a continuous fluid transportation system, and the choice of splicing method is comprehensively considered according to factors such as the diameter of the pipe, pressure requirements, use environment, and whether it needs to be frequently disassembled and repaired.

[0003] Forming a continuous fluid transportation system is generally achieved by splicing pipes, that is, by splicing pipes to reach the desired length. The existing carbon steel pipe splicing technologies mostly use welding and threaded connections, etc. Such installation methods are cumbersome to operate, not only inconvenient for splicing, but also very troublesome to disassemble, affecting the work efficiency of the staff. Content of the Utility Model

[0004] Aiming at the above-mentioned disadvantages of the existing technology, the utility model provides a carbon steel pipe convenient for splicing, which can effectively solve the problem that the existing carbon steel pipe splicing technologies mostly use welding and threaded connections, etc., and such installation methods are cumbersome to operate.

[0005] To achieve the above object, the utility model is realized through the following technical solutions:

[0006] The utility model provides a carbon steel pipe convenient for splicing, including a carbon steel pipe body. The carbon steel pipe body is composed of a first carbon steel pipe and a second carbon steel pipe connected up and down. A connecting ring is fixedly connected to the lower end of the carbon steel pipe body. A plugging groove is opened at the upper end of the carbon steel pipe body. Two guiding grooves communicating with the plugging groove are symmetrically opened at the upper end of the carbon steel pipe body. Two convex blocks slidingly connected with the guiding grooves are symmetrically and fixedly connected to the outer side of the connecting ring. A limiting ring groove is opened in the carbon steel pipe body, and the limiting ring groove is communicated with the plugging groove and the guiding grooves. A limiting component is arranged in the carbon steel pipe body.

[0007] According to the above-mentioned carbon steel pipe convenient for splicing, the limiting component includes a sliding cavity opened in the carbon steel pipe body and communicating with the guiding groove, and the shape of the sliding cavity is annular. A buffer plate is slidingly connected to the sliding cavity, and the buffer plate never disengages from the sliding cavity. A plurality of limiting springs are fixedly connected between the buffer plate and the sliding cavity.

[0008] According to the above-mentioned carbon steel pipe convenient for splicing, the limiting springs are always in a compressed state and not in an extreme compressed state.

[0009] According to the above-mentioned carbon steel pipe that is convenient for splicing, a sealing gasket is fixedly bonded to the inner bottom wall of the insertion groove inside the carbon steel pipe body. When the convex block is located in the limit ring groove, the connecting ring abuts against the sealing gasket.

[0010] According to the above-mentioned carbon steel pipe that is convenient for splicing, a positioning block is fixedly connected to the inner top wall of the limit ring groove inside the carbon steel pipe body. When the convex block abuts against the positioning block, the vertical position of the convex block corresponds to that of the guiding groove.

[0011] According to the above-mentioned carbon steel pipe that is convenient for splicing, the shape of the insertion groove is annular, and the shape of the connecting ring is adapted to the shape of the insertion groove.

[0012] The technical solution provided by the present utility model has the following beneficial effects compared with the known prior art:

[0013] In the present utility model, by sliding the first carbon steel pipe towards the second carbon steel pipe, the connecting ring slides into the insertion groove until the convex block abuts against the buffer plate. Continuing to slide the convex block, the buffer plate slides into the sliding cavity, and the limit spring is further compressed until the convex block slides into the limit ring groove. The first carbon steel pipe causes the convex block to rotate in the limit ring groove, and the convex block is misaligned with the guiding groove. Under the elastic force of the limit spring, it is prevented that the first carbon steel pipe is easily displaced towards the second carbon steel pipe. By setting the positioning block, it is convenient for the disassembly of the first carbon steel pipe and the second carbon steel pipe. The disassembly and assembly operations are simple, which improves the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic structural diagram of the splicing of the first carbon steel pipe and the second carbon steel pipe in the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the carbon steel pipe body in the present utility model;

[0017] Figure 3 For Figure 2 an enlarged structural diagram of part A in

[0018] Reference Numerals: 1, carbon steel pipe body; 11, first carbon steel pipe; 12, second carbon steel pipe; 2, connecting ring; 3, insertion slot; 4, guiding slot; 5, bump; 6, limiting ring groove; 7, limiting component; 71, sliding cavity; 72, buffer plate; 73, limiting spring; 8, sealing washer; 9, positioning block. Detailed Embodiment

[0019] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model will be further described below with reference to the embodiments.

[0021] Embodiment: Refer to Figures 1 to 3 , a carbon steel pipe that is easy to assemble, including a carbon steel pipe body 1. The carbon steel pipe body 1 is composed of a first carbon steel pipe 11 and a second carbon steel pipe 12 that are connected and distributed up and down. A connecting ring 2 is fixedly connected to the lower end of the carbon steel pipe body 1. An insertion slot 3 is opened at the upper end of the carbon steel pipe body 1. The shape of the insertion slot 3 is annular, and the shape of the connecting ring 2 is adapted to the shape of the insertion slot 3. By providing the connecting ring 2 and the insertion slot 3 with an insertion fit, the sealing performance after the first carbon steel pipe 11 and the second carbon steel pipe 12 are assembled can be ensured.

[0022] Two guiding slots 4 communicating with the insertion slot 3 are symmetrically opened at the upper end of the carbon steel pipe body 1. Two bumps 5 that are slidably connected to the guiding slots 4 are symmetrically and fixedly connected to the outer side of the connecting ring 2. A limiting ring groove 6 is opened in the carbon steel pipe body 1. A sealing washer 8 is fixedly adhered to the inner bottom wall of the insertion slot 3 inside the carbon steel pipe body 1. When the bump 5 is located in the limiting ring groove 6, the connecting ring 2 abuts against the sealing washer 8. By providing the sealing washer 8, the sealing performance after the first carbon steel pipe 11 and the second carbon steel pipe 12 are assembled is further enhanced.

[0023] The limiting ring groove 6 is communicated with the insertion groove 3 and the guiding groove 4. A limiting component 7 is arranged inside the carbon steel pipe body 1. Specifically, the limiting component 7 includes a sliding cavity 71 opened inside the carbon steel pipe body 1 and communicated with the guiding groove 4. The shape of the sliding cavity 71 is annular. A buffer plate 72 is slidably connected to the sliding cavity 71, and the buffer plate 72 never disengages from the sliding cavity 71. A plurality of limiting springs 73 are fixedly connected between the buffer plate 72 and the sliding cavity 71. By arranging the limiting component 7, when the convex block 5 slides along the guiding groove 4 to the limiting ring groove 6, the convex block 5 abuts against the buffer plate 72. Continuing to slide the convex block 5, the buffer plate 72 slides into the sliding cavity 71, and the limiting springs 73 are further compressed until the convex block 5 slides into the limiting ring groove 6, fixing the convex block 5 in the limiting ring groove 6 and misaligning the convex block 5 with the guiding groove 4, thus completing the splicing of the first carbon steel pipe 11 and the second carbon steel pipe 12.

[0024] The limiting springs 73 are always in a compressed state and not in an extreme compression state. The fact that the limiting springs 73 are always in a compressed state can ensure the limiting effect and the stability of the splicing of the first carbon steel pipe 11 and the second carbon steel pipe 12.

[0025] A positioning block 9 is fixedly connected to the inner top wall of the limiting ring groove 6 inside the carbon steel pipe body 1. When the convex block 5 abuts against the positioning block 9, the vertical position of the convex block 5 corresponds to that of the guiding groove 4. By arranging the positioning block 9, it is convenient to disassemble the first carbon steel pipe 11 and the second carbon steel pipe 12.

[0026] The working principle of the present utility model is as follows:

[0027] During installation, first align the first carbon steel pipe 11 and the second carbon steel pipe 12 vertically, slide the first carbon steel pipe 11 in the direction of the second carbon steel pipe 12, the connecting ring 2 slides into the insertion groove 3, and the convex block 5 slides along the guiding groove 4 to the limiting ring groove 6. Then the convex block 5 abuts against the buffer plate 72. Continuing to slide the convex block 5, the buffer plate 72 slides into the sliding cavity 71, and the limiting springs 73 are further compressed until the convex block 5 slides into the limiting ring groove 6. The first carbon steel pipe 11 rotates the convex block 5 in the limiting ring groove 6, and the convex block 5 is misaligned with the guiding groove 4, thus completing the splicing of the first carbon steel pipe 11 and the second carbon steel pipe 12. During disassembly, rotate the first carbon steel pipe 11 in the reverse direction. When the convex block 5 abuts against the positioning block 9, the vertical position of the convex block 5 corresponds to that of the guiding groove 4, which is convenient for disassembling the first carbon steel pipe 11 and the second carbon steel pipe 12.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A carbon steel pipe that is easy to assemble, characterized in that, It includes a carbon steel pipe body (1), and the carbon steel pipe body (1) is composed of a first carbon steel pipe (11) and a second carbon steel pipe (12) which are connected and distributed up and down. A connecting ring (2) is fixedly connected to the lower end of the carbon steel pipe body (1). An insertion slot (3) is opened at the upper end of the carbon steel pipe body (1). Two guiding slots (4) communicating with the insertion slot (3) are symmetrically opened at the upper end of the carbon steel pipe body (1). Two convex blocks (5) slidingly connected with the guiding slots (4) are symmetrically and fixedly connected to the outer side of the connecting ring (2). A limiting ring groove (6) is opened in the carbon steel pipe body (1), and the limiting ring groove (6) is communicated with both the insertion slot (3) and the guiding slots (4). A limiting component (7) is arranged in the carbon steel pipe body (1).

2. The carbon steel pipe that is easy to assemble according to claim 1, characterized in that, The limiting component (7) includes a sliding cavity (71) opened in the carbon steel pipe body (1) and communicating with the guiding slots (4), and the shape of the sliding cavity (71) is annular. A buffer plate (72) is slidingly connected to the sliding cavity (71), and the buffer plate (72) never disengages from the sliding cavity (71). A plurality of limiting springs (73) are fixedly connected between the buffer plate (72) and the sliding cavity (71).

3. The carbon steel pipe according to claim 2, which is easy to assemble, is characterized in that, The limiting springs (73) are always in a compressed state and not in an extreme compressed state.

4. A carbon steel pipe that is easy to assemble according to claim 1, characterized in that, A sealing gasket (8) is fixedly adhered to the inner bottom wall of the insertion slot (3) inside the carbon steel pipe body (1). When the convex blocks (5) are located in the limiting ring groove (6), the connecting ring (2) abuts against the sealing gasket (8).

5. A carbon steel pipe that is easy to assemble according to claim 1, characterized in that, A positioning block (9) is fixedly connected to the inner top wall of the limiting ring groove (6) inside the carbon steel pipe body (1). When the convex blocks (5) abut against the positioning block (9), the vertical positions of the convex blocks (5) correspond to those of the guiding slots (4).

6. The carbon steel pipe easy to be spliced according to claim 1, characterized in that, The shape of the insertion slot (3) is annular, and the shape of the connecting ring (2) is adapted to that of the insertion slot (3).

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