Welding auxiliary tool

Abstract

The utility model relates to the technical field of welding auxiliary tools, and provides a welding auxiliary tool which comprises a plurality of welding hooks used for being fixedly arranged in a pipeline. The multiple connecting blocks are used for abutting against the welding hooks after getting close to one another; the fasteners penetrate through the connecting blocks and are used for connecting the multiple connecting blocks, and butt joint of the machined pipelines is achieved. By means of the technical scheme, the problems that in the prior art, when rotary kiln equipment and a large-diameter pipeline are subjected to butt welding, a crane occupies a long time, and aerial fixing is difficult are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding auxiliary tooling, in particular to a welding auxiliary tool. Background Art

[0002] At present, the chemical industry uses rotary kiln equipment and large-diameter pipelines on a large scale. Due to the inconvenience of transportation, large-diameter pipelines are usually transported in sections. After arriving at the site where they need to be installed, auxiliary tools are used on-site for butt welding.

[0003] During the installation of rotary kiln equipment and large-diameter pipelines, a considerable part of them are installed overhead. The aerial butt welding has problems such as long welds and heavy pipe weight, so it is difficult to fix them in the air, resulting in a long crane shift time and a waste of manpower and material resources. Based on such a construction environment, it is difficult for existing auxiliary tools to quickly solve these problems, which brings troubles to on-site construction. Utility Model Content

[0004] The utility model provides a welding auxiliary tool, which solves the problems in the related art that the crane takes a long time to be fixed in the air and is difficult to fix when the rotary kiln equipment and the large-diameter pipeline are butt-welded.

[0005] The technical solution of the utility model is as follows:

[0006] A welding auxiliary tool, used for locating the position of a pipeline during pipeline welding, comprising:

[0007] A welding hook, wherein the welding hook is provided in plurality and is used for being fixedly arranged in the pipeline;

[0008] A connecting block, wherein there are a plurality of connecting blocks, and two connecting blocks are used to abut against the welding hook when they are close to each other;

[0009] A fastener passes through the connection block and is used to connect two connection blocks.

[0010] Optionally, the welding hook has a hook-shaped protrusion, the hook-shaped protrusion is located at one end of the welding hook, and the hook-shaped protrusion abuts against the connecting block.

[0011] Optionally, the connecting block has a hook-shaped groove, and the hook-shaped groove is used to abut against the hook-shaped protrusion.

[0012] Optionally, it also includes:

[0013] A square platform protrusion, wherein the square platform protrusion is arranged on one of the connecting blocks,

[0014] The U-shaped groove is located on the other connecting block arranged in pair, and when the two connecting blocks are close to each other, the U-shaped groove abuts against the square platform protrusion.

[0015] Optionally, the fastener comprises:

[0016] a screw rod, the screw rod being slidably disposed in the connecting block,

[0017] A fastening nut, wherein the fastening nut threads are arranged at both ends of the screw rod.

[0018] The working principle and beneficial effects of the utility model are:

[0019] In the utility model, in order to solve the problems of long welds, heavy pipe weight, and difficulty in aerial fixation in the related art of large-diameter pipe welding, which leads to long crane shift time, several welding hooks are fixed in pairs on the inner sides of the two pipe openings, and after the connecting blocks are abutted against the welding hooks, the two connecting blocks are fastened with fasteners. The whole structure is compact and light, which helps to reduce the danger and workload of workers. After the welding work is completed, the welding hooks can be cut off and reused. When used again, it is necessary to ensure that the length of the welding hooks in the same group is consistent, and the welding hooks must be replaced in time after multiple uses.

[0020] When using the welding auxiliary device, place the pipe to be welded on a flat ground, weld several welding hooks evenly on the inside of the pipe to be welded, and weld the same number of welding hooks at the corresponding positions in the installed pipe mouth. At this time, the pipe to be welded is hoisted in the air with a crane. After the operator aligns the two pipe mouths, fix the connection block with a welding hook, and then use fasteners to pass through the connection block to fix the two connection blocks. This not only reduces the work intensity of the workers, but also greatly reduces the use time of the crane, and can better arrange work shifts. It not only brings convenience to the construction unit, but also improves work efficiency when the number of cranes is limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0024] Figure 3 This is a schematic diagram of one of the connection blocks of the structure of the utility model;

[0025] Figure 4 This is another schematic diagram of a connection block of the utility model structure;

[0026] In the figure: 1. welding hook, 2. connecting block, 3. fastener, 4. hook-shaped protrusion, 5. hook-shaped groove, 6. square platform protrusion, 7. U-shaped groove, 8. screw, 9. fastening nut. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0028] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0029] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0031] Reference Figure 1~Figure 4 , which is the first embodiment of the utility model, proposes a welding auxiliary tool for locating the position of a pipeline during pipeline welding, comprising a welding hook 1, wherein the welding hook 1 is multiple and the welding hook 1 is used to be fixedly arranged in the pipeline;

[0032] There are multiple connection blocks 2, and the multiple connection blocks 2 are used to abut against the welding hook 1 when they are close to each other; the fastener 3 penetrates the connection block 2, and the fastener 3 is used to connect the multiple connection blocks 2.

[0033] In this embodiment, in order to solve the problem of large-diameter pipe welding being difficult and requiring a lot of manpower and material resources in the related art, the pipe to be welded is placed on a flat ground, and a suitable number of welding hooks 1 are selected according to the specific diameter and weight of the pipe to be welded and evenly welded to the inside of the pipe to be welded, and then the same number of welding hooks 1 are welded at the corresponding positions in the installed pipe mouth. After the welding is completed, the pipe to be welded is lifted by a crane for docking with the installed pipe. After the position is placed, the connecting block 2 is abutted against the welding hook 1. After the abutment is completed, the corresponding connecting block 2 is tightened with the fastener 3, so as to achieve the effect of fixing the two pipes. After the welding work is completed, the welding hook can be cut off and reused. When used again, it is necessary to ensure that the length of the welding hooks 1 in the same group is consistent, and the welding hooks should be replaced in time after multiple uses.

[0034] Specifically, when using this welding auxiliary tool, the operator first welds a suitable number of welding hooks 1 evenly along the inner side of the pipe mouth to be welded, and the welding is required to be tight and reliable. After the welding is completed, the same number of welding hooks 1 are welded at the corresponding positions on the inner side of the installed pipe mouth by using a climbing vehicle. After all the welding hooks 1 are welded, the pipe to be welded is lifted by a crane. After the crane is controlled to place the pipe to be welded in the desired position, several connecting blocks 2 are connected to the welding hooks 1 on the two sections of the pipe correspondingly. After the connection is completed, several fasteners 3 are used to connect and tighten the connecting blocks 2 at the corresponding positions. After the connection is completed, confirm that the pipe to be welded is accurately positioned and stably connected to the installed pipe. The crane can then be removed, and the welder can perform subsequent welding operations. This design greatly saves the use time of the crane during large-diameter pipe welding operations, and can improve work efficiency when the number of cranes is insufficient.

[0035] Furthermore, the welding hook 1 has a hook-shaped protrusion 4 , which is located at one end of the welding hook 1 and abuts against the connecting block 2 .

[0036] In this embodiment, the welding hook 1 has a hook-shaped protrusion 4. After the welding hook 1 is stably welded to the inner side of the pipe, the hook-shaped protrusion 4 will abut against the connecting block 2 to fix the connecting block 2, which can facilitate the operator to perform the operation.

[0037] Furthermore, the connection block 2 has a hook-shaped groove 5 , and the hook-shaped groove 5 is used to abut against the hook-shaped protrusion 4 .

[0038] In this embodiment, the connecting block 2 has a hook-shaped groove 5. After the welding hook 1 is stably welded to the inner side of the pipe, the hook-shaped protrusion 4 will abut against the hook-shaped groove 5 on the connecting block 2, so that the welding hook 1 and the connecting block 2 can be connected to each other in advance, providing a basis for subsequent fastening.

[0039] Furthermore, it also includes a square platform protrusion 6, which is arranged on one of the connecting blocks 2, and a U-shaped groove 7 is located on the other connecting block 2. After the two connecting blocks 2 are close to each other, the U-shaped groove 7 abuts against the square platform protrusion 6.

[0040] In this embodiment, the two corresponding connection blocks 2 have a square platform protrusion 6 and a U-shaped groove 7 respectively. After the fastener 3 completely fastens the two connection blocks 2, the square platform protrusion 6 will completely abut against the U-shaped groove 7, thereby providing support for the pipe to be welded after the crane leaves, and can be stably fixed.

[0041] Furthermore, the fastener 3 includes a screw rod 8 , which is slidably disposed in the connection block 2 , and two fastening nuts 9 , which are threadedly disposed at both ends of the screw rod 8 .

[0042] In this embodiment, the fastener 3 includes a screw 8 and two nuts, and the screw 8 is made of a material with high force strength. After the welding hook 1 is in contact with the connecting block 2, the screw 8 is passed through the two connecting blocks 2 to gradually merge the two connecting blocks 2. After the connecting blocks 2 are completely merged, washers and fastening nuts 9 are screwed on both ends of the screw 8 to fix them. After all the corresponding connecting blocks 2 are fixed, the crane can be removed and the welder can complete the subsequent welding operation.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A welding auxiliary tool, used for locating the position of a pipeline during pipeline welding, characterized in that: include: A welding hook (1), wherein the welding hook (1) is provided in plurality, and the plurality of welding hooks (1) are used to be arranged in pairs in the pipeline; A connecting block (2), wherein the connecting blocks (2) are multiple and two connecting blocks (2) are used to abut against the welding hook (1) when they are brought close to each other; A fastener (3), the fastener (3) passing through the connection block (2), the fastener (3) being used to connect two connection blocks (2).

2. A welding auxiliary tool according to claim 1, characterized in that: The welding hook (1) has a hook-shaped protrusion (4), the hook-shaped protrusion (4) is located at one end of the welding hook (1), and the hook-shaped protrusion (4) abuts against the connecting block (2).

3. A welding auxiliary tool according to claim 2, characterized in that: The connection block (2) has a hook-shaped groove (5), and the hook-shaped groove (5) is used to abut against the hook-shaped protrusion (4).

4. A welding auxiliary tool according to claim 3, characterized in that: Also includes: a square platform protrusion (6), wherein the square platform protrusion (6) is arranged on one of the connecting blocks (2), The U-shaped groove (7) is located on another of the connecting blocks (2) arranged in a pair, and when the two connecting blocks (2) are close to each other, the U-shaped groove (7) abuts against the square platform protrusion (6).

5. A welding auxiliary tool according to claim 1, characterized in that: The fastener (3) comprises: a screw rod (8), the screw rod (8) being slidably disposed in the connecting block (2), A fastening nut (9) having threads arranged at two ends of the screw rod (8).

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