Stainless steel pipe convenient to weld with large-diameter steel pipe

Abstract

The utility model belongs to the technical field of stainless steel pipes, and particularly relates to a stainless steel pipe convenient to weld with a large-diameter steel pipe, which comprises a stainless steel pipe body, a plurality of square notches are annularly arranged at the end of the stainless steel pipe body, and first support plates are connected to the inner sides of the square notches through rotating components. One end of the first supporting plate is connected with a second supporting plate through a first connecting assembly, and the first supporting plate and the second supporting plate are connected into the square notch through a second connecting assembly. The square notches are formed in the ends of the stainless steel pipe body, and the first supporting plates and the second supporting plates are arranged in the square notches, so that when the stainless steel pipe and a large-diameter steel pipe are welded, the stainless steel pipe and the large-diameter steel pipe can be supported and positioned; and additional supporting is not needed, so that the convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pipes, in particular to a stainless steel pipe which is convenient for welding with large-diameter steel pipes. Background Art

[0002] Stainless steel pipe is a steel material with a hollow cross-section whose length is much greater than its diameter or circumference. Stainless steel pipe is used to transport fluids and powdered solids, exchange heat, and manufacture mechanical parts and containers.

[0003] However, welding stainless steel pipes to large-diameter steel pipes currently increases the difficulty for operators to weld, because there is no supporting structure between the stainless steel pipes and the large-diameter steel pipes, and thus additional support is required for the stainless steel pipes or the large-diameter steel pipes. Therefore, a stainless steel pipe that is easy to weld to large-diameter steel pipes is invented. Utility Model Content

[0004] In view of the above problems and / or the problems existing in the existing stainless steel pipe that is easy to weld with a large-diameter steel pipe, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a stainless steel pipe that is easy to weld with a large-diameter steel pipe, which can solve the above-mentioned existing problems.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A stainless steel pipe that is easy to weld with a large-diameter steel pipe includes a stainless steel pipe body, the ends of the stainless steel pipe body are arranged in a ring and have a plurality of square notches, the inner side of the square notches is connected to a first support plate via a rotating assembly, one end of the first support plate is connected to a second support plate via a first connecting assembly, and both the first support plate and the second support plate are connected to the square notches via a second connecting assembly.

[0008] As a preferred solution of the stainless steel pipe that is easy to weld with a large-diameter steel pipe according to the utility model, the rotating assembly includes:

[0009] Mounting grooves are provided on the stainless steel pipe body on both sides of the square notch, and the mounting grooves are connected to the square notch;

[0010] The rotating shaft is rotatably connected in the installation groove through a bearing, and a first support plate is fixedly installed between the two sets of rotating shafts.

[0011] As a preferred solution of the stainless steel pipe that is easy to weld with a large-diameter steel pipe according to the present invention, the first connecting assembly includes:

[0012] A square groove is provided in the first supporting plate;

[0013] A receiving groove is provided on the first supporting plate located on one side of the square groove, and the receiving groove is communicated with the square groove.

[0014] As a preferred solution of the stainless steel pipe that is easy to weld with a large-diameter steel pipe according to the present invention, the first connecting assembly further includes:

[0015] A square rod, wherein the second support plate is fixedly mounted on one end of the square rod facing the first support plate, and one end of the square rod passes through the receiving groove and is slidably connected in the square groove;

[0016] The first spring is sleeved on the square rod and is located in the receiving groove. Two ends of the first spring are fixedly connected to the second support plate and the receiving groove respectively.

[0017] As a preferred solution of the stainless steel pipe that is easy to weld with a large-diameter steel pipe according to the present invention, the second connecting assembly includes:

[0018] Slide grooves: a plurality of slide grooves are provided on both sides of the first support plate and the second support plate;

[0019] A fixed plate is fixedly installed in the slide groove.

[0020] As a preferred solution of the stainless steel pipe that is easy to weld with a large-diameter steel pipe according to the present invention, the second connecting assembly further includes:

[0021] A sliding rod, the sliding rod being slidably connected to the fixed plate;

[0022] The positioning block is fixedly mounted on one end of the slide bar, and the shape of the positioning block is set to be a hemisphere.

[0023] As a preferred solution of the stainless steel pipe that is easy to weld with a large-diameter steel pipe according to the present invention, the second connecting assembly further includes:

[0024] Positioning grooves: a plurality of positioning grooves are provided on the stainless steel pipe body on both sides of the square notch, and the positioning grooves are connected to the square notch, and the positioning blocks are inserted into the positioning grooves;

[0025] A limiting plate is fixedly mounted on the other end of the sliding rod.

[0026] As a preferred solution of the utility model for a stainless steel pipe that is easy to weld with a large-diameter steel pipe, the slide rod is covered with a second spring, and the two ends of the second spring are respectively fixedly connected to the positioning block and the fixing plate.

[0027] Compared with existing technologies:

[0028] By arranging a plurality of square notches at the end of the stainless steel pipe body, and by arranging a first support plate and a second support plate in the square notches, it is possible to support and position the stainless steel pipe and the large-diameter steel pipe when welding them, without the need for additional support, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure of the utility model;

[0030] Figure 2 This is a schematic top view of the structure of the utility model;

[0031] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0032] Figure 4 This is a schematic diagram of the structure of the utility model.

[0033] In the figure: stainless steel pipe body 10, square notch 20, first support plate 21, second support plate 22, mounting groove 30, rotating shaft 31, square groove 40, storage groove 41, square rod 42, first spring 43, slide groove 50, fixing plate 51, slide rod 52, positioning block 53, positioning groove 54, limit plate 55, second spring 56. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0035] The utility model provides a stainless steel pipe that is easy to weld with large diameter steel pipes. Figures 1-4, including a stainless steel pipe body 10, the end of the stainless steel pipe body 10 is arranged in a ring and has a plurality of square notches 20, the inner side of the square notch 20 is connected to a first support plate 21 through a rotating component, one end of the first support plate 21 is connected to a second support plate 22 through a first connecting component, and the first support plate 21 and the second support plate 22 are both connected to the square notch 20 through a second connecting component; wherein the material of the first support plate 21 and the second support plate 22 are both set to stainless steel, and the shape of the first support plate 21 and the second support plate 22 are both set to arc-shaped to ensure that the end of the stainless steel pipe body 10 is round; in addition, sealing strips can be set between the first support plate 21 and the second support plate 22, between the first support plate 21 and the square notch 20, and between the second support plate 22 and the square notch 20 as needed.

[0036] The rotating assembly includes: a mounting slot 30 and a rotating shaft 31;

[0037] Mounting grooves 30 are provided on the stainless steel pipe body 10 on both sides of the square notch 20 , and the mounting grooves 30 are connected to the square notch 20 . The rotating shafts 31 are rotatably connected in the mounting grooves 30 through bearings, and the first support plate 21 is fixedly installed between the two sets of rotating shafts 31 .

[0038] The first connecting assembly includes: a square slot 40, a receiving slot 41, a square rod 42, and a first spring 43;

[0039] The square groove 40 is provided in the first support plate 21. A receiving groove 41 is provided on the first support plate 21 located on one side of the square groove 40, and the receiving groove 41 is communicated with the square groove 40. The second support plate 22 is fixedly installed with a square rod 42 at one end facing the first support plate 21, and one end of the square rod 42 passes through the receiving groove 41 and is slidably connected to the square groove 40. The first spring 43 is sleeved on the square rod 42, and the first spring 43 is located in the receiving groove 41. The two ends of the first spring 43 are fixedly connected to the second support plate 22 and the receiving groove 41 respectively; wherein, as Figure 1 、 Figure 2 and Figure 3 The first springs 43 are shown in a deformed state.

[0040] The second connecting assembly includes: a slide 50, a fixing plate 51, a slide rod 52, a positioning block 53, a positioning slot 54, a limiting plate 55, and a second spring 56;

[0041] A plurality of slide grooves 50 are provided on both sides of the first support plate 21 and the second support plate 22. The fixed plate 51 is fixedly installed in the slide grooves 50. The sliding rod 52 is slidably connected to the fixed plate 51. The positioning block 53 is fixedly installed on one end of the sliding rod 52, and the shape of the positioning block 53 is set to be hemispherical. A plurality of positioning grooves 54 are provided on the stainless steel pipe body 10 located on both sides of the square notch 20, and the positioning grooves 54 are connected to the square notch 20. The positioning block 53 is inserted into the positioning groove 54. The limit plate 55 is fixedly installed on the other end of the sliding rod 52. A second spring 56 is sleeved on the sliding rod 52, and the two ends of the second spring 56 are fixedly connected to the positioning block 53 and the fixed plate 51 respectively; wherein the elastic force of the multiple groups of second springs 56 (at least two groups) is greater than the elastic force of the first spring 43.

[0042] When used specifically, the steps are as follows:

[0043] Step 1: The inner cavity of the stainless steel pipe body 10 applies a force to move the first support plate 21 outward. At this time, the positioning block 53 is located in the slide groove 50, and the first spring 43 is deformed. When the positioning block 53 is away from the stainless steel pipe body 10, the positioning block 53 is restored to its original position under the action of the first spring 43. At this point, the first support plate 21 and the second support plate 22 can rotate around the rotating shaft 31 as the center point until the first support plate 21 and the second support plate 22 are in an inclined state, and the first support plate 21 contacts the inner surface of the square notch 20. During this process, the first support plate 21 and the second support plate 22 are separated by the second spring 56;

[0044] Step 2: Press the second support plate 22. At this time, the first spring 43 will deform until several second support plates 22 can be inserted into the large-diameter steel pipe. Then, insert the end of the stainless steel pipe body 10 into the large-diameter steel pipe. At this time, the second support plate 22 will be in close contact with the large-diameter steel pipe under the action of the first spring 43. At this point, the connection between the stainless steel pipe body 10 and the large-diameter steel pipe can be positioned and supported.

[0045] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A stainless steel pipe that is easy to weld with a large-diameter steel pipe, comprising a stainless steel pipe body (10), characterized in that: The end of the stainless steel pipe body (10) is provided with a plurality of square notches (20) arranged in a ring shape, the inner side of the square notch (20) is connected to a first support plate (21) via a rotating assembly, one end of the first support plate (21) is connected to a second support plate (22) via a first connecting assembly, and both the first support plate (21) and the second support plate (22) are connected to the square notch (20) via a second connecting assembly.

2. The stainless steel pipe that is easy to weld with a large diameter steel pipe according to claim 1, characterized in that: The rotating assembly comprises: Mounting grooves (30) are provided on the stainless steel pipe body (10) on both sides of the square notch (20), and the mounting grooves (30) are connected to the square notch (20); The rotating shaft (31) is rotatably connected to the mounting groove (30) via a bearing, and a first support plate (21) is fixedly installed between the two sets of rotating shafts (31).

3. The stainless steel pipe that is easy to weld with a large diameter steel pipe according to claim 1, characterized in that: The first connection component includes: A square groove (40), wherein the square groove (40) is provided in the first support plate (21); A receiving groove (41) is provided on the first supporting plate (21) located on one side of the square groove (40), and the receiving groove (41) is communicated with the square groove (40).

4. The stainless steel pipe that is easy to weld with a large diameter steel pipe according to claim 1, characterized in that: The first connection component further includes: A square rod (42), wherein the second support plate (22) is fixedly mounted on one end of the square rod (42) facing the first support plate (21), and one end of the square rod (42) passes through the receiving groove (41) and is slidably connected to the square groove (40); A first spring (43) is sleeved on the square rod (42), and the first spring (43) is located in the receiving groove (41), and two ends of the first spring (43) are fixedly connected to the second support plate (22) and the receiving groove (41) respectively.

5. The stainless steel pipe that is easy to weld with a large diameter steel pipe according to claim 1, characterized in that: The second connection component includes: Slide grooves (50), a plurality of slide grooves (50) are provided on both sides of the first support plate (21) and the second support plate (22); A fixed plate (51), wherein the fixed plate (51) is fixedly installed in the sliding groove (50).

6. The stainless steel pipe that is easy to weld with a large diameter steel pipe according to claim 5, characterized in that: The second connection component further includes: A sliding rod (52), wherein the sliding rod (52) is slidably connected to the fixed plate (51); A positioning block (53) is fixedly mounted on one end of the slide bar (52), and the positioning block (53) is shaped as a hemisphere.

7. The stainless steel pipe that is easy to weld with a large diameter steel pipe according to claim 6, characterized in that: The second connection component further includes: Positioning grooves (54), a plurality of positioning grooves (54) are provided on the stainless steel pipe body (10) on both sides of the square notch (20), and the positioning grooves (54) are connected to the square notch (20), and the positioning blocks (53) are inserted into the positioning grooves (54); A limiting plate (55) is fixedly mounted on the other end of the slide bar (52).

8. The stainless steel pipe that is easy to weld with a large diameter steel pipe according to claim 7, characterized in that: The slide bar (52) is sleeved with a second spring (56), and two ends of the second spring (56) are fixedly connected to the positioning block (53) and the fixing plate (51) respectively.

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