Pipe flange welding butt joint auxiliary device

Abstract

The utility model discloses a pipeline flange welding butt joint auxiliary device, including angle steel, adjusting lever, the angle center of angle steel has the hole, and adjusting lever passes through the hole and is connected with the angle steel and becomes a butt joint auxiliary device whole, and the butt joint auxiliary device whole is placed in the pipeline port, wherein, one end of angle steel and adjusting lever are placed in the pipeline, and the other end of angle steel exposes outside the pipeline, and the flange sleeve is connected on the other end of angle steel, and the center of flange and the center of pipeline coincide. Simple structure, strong practicality, convenient operation, very low use cost, save time and effort. The components all can be made of waste materials on the construction site, and can be made on site according to the pipe diameter, further saving the cost.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline construction equipment, specifically to an auxiliary device for welding and mating pipeline flanges. Background Technology

[0002] During pipeline construction and welding of flanges to pipes, flanges can be quite heavy, often requiring multiple people to work together to connect them. This reduces work efficiency and increases costs. Summary of the Invention

[0003] Due to the aforementioned defects in the existing technology, this utility model provides an auxiliary device for welding pipe flanges to solve the problems of high efficiency and low cost of manual operation in the existing pipe flange welding process.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A pipe flange welding alignment auxiliary device includes an angle steel and an adjusting rod. The angle steel has a hole at its center. The adjusting rod passes through the hole and is connected to the angle steel to form an overall alignment auxiliary device. The overall alignment auxiliary device is placed inside the pipe port. One end of the angle steel and the adjusting rod are placed inside the pipe, and the other end of the angle steel protrudes outside the pipe. The flange is fitted onto the other end of the angle steel, so that the center of the flange coincides with the center of the pipe.

[0006] An adjusting rod fixing device is provided on the angle steel. After the adjusting rod is adjusted to the correct position in the hole of the angle steel, it is fixed relatively by the fixing device.

[0007] The relative position of the adjusting rod and the angle steel is adjusted according to the inner diameter of the pipe, and then fixed relative to the angle steel after adjustment.

[0008] The adjusting rod is a screw or threaded rod, and the fixing device is a nut that matches the screw or threaded rod. The nut is welded to the inside of the angle steel, and the center line coincides with the center point of the hole. The screw or threaded rod passes through the hole and the nut in sequence and is then fixed in a limited position.

[0009] The upper end of the adjusting rod is lower than the height of the line connecting the two sides of the angle steel.

[0010] After the adjusting rod is fixed, the lower end of the adjusting rod and the two sides of the angle steel are respectively in contact with the inner wall of the pipe.

[0011] The adjusting rod comes in several specifications, and can be disassembled and replaced to match the appropriate length according to the inner diameter of the pipe.

[0012] The adjusting rod comprises two segments that are matched and connected to each other. The two segments can move relative to each other to adjust the overall length, and can be relatively fixed after adjustment.

[0013] An adjustable connector is provided between the two sections of the adjusting rod.

[0014] The adjustable connector is an automatic adjustment structure that automatically adjusts the relative position of the two sections according to the inner diameter of the pipe.

[0015] Compared with the prior art, the above invention has the following advantages or beneficial effects:

[0016] 1. This utility model has a simple structure, strong practicality, convenient operation, low cost of use, and saves time and effort.

[0017] 2. All components used in this utility model can be made from waste materials on the construction site, and can be made on-site according to the pipe diameter, further saving costs. Attached Figure Description

[0018] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their purpose is to illustrate the gist of the invention.

[0019] Figure 1 This is a schematic diagram of the auxiliary device for welding and mating pipe flanges according to this utility model.

[0020] Figure 2 This is a schematic diagram illustrating the application effect of the auxiliary device for welding flanges of this utility model.

[0021] Figure 3 This is a schematic diagram illustrating the fabrication, installation, and application of the auxiliary device for welding flanges in this utility model.

[0022] Among them, 1-angle steel; 2-nut; 3-adjusting rod; 4-pipe; 5-flange. Detailed Implementation

[0023] The structure of this utility model will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the utility model.

[0024] A pipe flange welding alignment auxiliary device includes an angle steel and an adjusting rod. The angle steel has a hole at its center. The adjusting rod passes through the hole and is connected to the angle steel to form an overall alignment auxiliary device. The overall alignment auxiliary device is placed inside the pipe port. One end of the angle steel and the adjusting rod are placed inside the pipe, and the other end of the angle steel protrudes outside the pipe. The flange is fitted onto the other end of the angle steel, so that the center of the flange coincides with the center of the pipe.

[0025] Specific Implementation Example 1, such as Figures 1 to 3 As shown:

[0026] A pipe flange welding alignment auxiliary device includes an angle steel 1 and an adjusting rod 2. The angle steel 1 has a hole at its center. The adjusting rod 3 passes through the hole and is connected to the angle steel 1 to form an overall alignment auxiliary device. The overall alignment auxiliary device is placed inside the pipe port. One end of the angle steel 1 and the adjusting rod 3 are placed inside the pipe 4, and the other end of the angle steel 1 protrudes outside the pipe. The flange 5 is fitted onto the other end of the angle steel 1, so that the center of the flange 5 coincides with the center of the pipe.

[0027] An adjusting rod fixing device is provided on the angle steel 1. After the adjusting rod 3 is adjusted to the correct position in the hole of the angle steel, it is fixed relatively by the fixing device.

[0028] The relative position of the adjusting rod and the angle steel is adjusted according to the inner diameter of the pipe, and then fixed relative to the angle steel after adjustment.

[0029] In this embodiment, the adjusting rod 3 is a screw or threaded rod, and the fixing device is a nut 2 that matches the screw or threaded rod. The nut 2 is welded to the inside of the angle steel, and its center line coincides with the center point of the hole. The screw or threaded rod passes through the hole and the nut 2 in sequence and is then limited and fixed.

[0030] The upper end of the adjusting rod is lower than the height of the line connecting the two sides of the angle steel.

[0031] After the adjusting rod is fixed, the lower end of the adjusting rod and the two sides of the angle steel are respectively in contact with the inner wall of the pipe.

[0032] The auxiliary device in this embodiment is suitable for flange connections on small-diameter pipes. First, a hole is drilled in the center of the angle steel, and a nut is welded to the hole. After the screw is turned to the nut, the total length of the auxiliary tool can be changed by rotating the screw, thus adjusting the total length to fix the flange to be welded according to the required pipe diameter. This auxiliary tool is placed at the edge of the pipe, and the flange is fixed to the exposed portion of the flange for welding. On-site personnel can independently complete the flange alignment work, thereby saving manpower and time and improving efficiency.

[0033] The specific manufacturing and application process of the auxiliary device for pipe flange welding in this embodiment is as follows:

[0034] Step 1: Prepare a suitable angle steel, screw and nut, and drill a hole in the center of the angle steel that is similar in size to the nut.

[0035] Step 2: Weld the prepared nut directly above the hole in the angle steel, that is, to the inside of the angle steel.

[0036] Step 3: Tighten the screw onto the nut, and change the total length L by rotating the screw up and down until the length is changed to the condition L < R, where R is the inner diameter of the pipe.

[0037] Step 4: Place the angle steel vertically on the edge of the pipe, and by turning the screw, make both sides of the angle steel and one end of the screw press against the inner wall of the pipe to fix this auxiliary tool to the pipe.

[0038] Step 5: Place the flange onto the excess angle steel and align it with the pipe opening to complete the fixing. Then proceed with the subsequent welding work.

[0039] Specific embodiment two,

[0040] In this embodiment, the main structure is the same as in Embodiment 1, except that the adjusting rod includes rods of various lengths, which can be disassembled and replaced according to the inner diameter of the pipe to match the appropriate length.

[0041] Specific embodiment three,

[0042] In this embodiment, the main structure is the same as in embodiment one, except that the adjusting rod includes two segments that are matched and connected to each other. The two segments can move relative to each other to adjust the overall length, and can be relatively fixed after adjustment.

[0043] To make the device easier to operate, an adjustable connector is provided between the two sections of the adjusting rod. The relative position between the two sections is adjusted by the adjustable connector, and then fixed after adjustment.

[0044] To make the device more intelligent, the adjustable connector is an automatic adjustment structure that automatically adjusts the relative position of the two sections according to the inner diameter of the pipe before fixing them.

[0045] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification, claims and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0046] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0047] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0048] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0049] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0050] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.

[0051] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. An auxiliary device for welding and mating pipe flanges, characterized in that: The device includes an angle steel and an adjusting rod. The angle steel has a hole at its center. The adjusting rod passes through the hole and is connected to the angle steel to form a matching auxiliary device. The matching auxiliary device is placed inside the pipe port. One end of the angle steel and the adjusting rod are placed inside the pipe, while the other end of the angle steel protrudes outside the pipe. A flange is fitted onto the other end of the angle steel, so that the center of the flange coincides with the center of the pipe.

2. The auxiliary device for welding pipe flanges according to claim 1, characterized in that: An adjusting rod fixing device is provided on the angle steel. After the adjusting rod is adjusted to the correct position in the hole of the angle steel, it is fixed relatively by the fixing device.

3. The auxiliary device for welding pipe flanges according to claim 2, characterized in that: The relative position of the adjusting rod and the angle steel is adjusted according to the inner diameter of the pipe, and then fixed relative to the angle steel after adjustment.

4. The auxiliary device for welding pipe flanges according to claim 3, characterized in that: The adjusting rod is a screw or threaded rod, and the fixing device is a nut that matches the screw or threaded rod. The nut is welded to the inside of the angle steel, and the center line coincides with the center point of the hole. The screw or threaded rod passes through the hole and the nut in sequence and is then fixed in a limited position.

5. The auxiliary device for welding pipe flanges according to claim 1, characterized in that: The upper end of the adjusting rod is lower than the height of the line connecting the two sides of the angle steel.

6. The auxiliary device for welding pipe flanges according to claim 5, characterized in that: After the adjusting rod is fixed, the lower end of the adjusting rod and the two sides of the angle steel are respectively in contact with the inner wall of the pipe.

7. The auxiliary device for welding pipe flanges according to claim 1, characterized in that: The adjusting rod comes in several specifications, and can be disassembled and replaced to match the appropriate length according to the inner diameter of the pipe.

8. The auxiliary device for welding pipe flanges according to claim 1, characterized in that: The adjusting rod comprises two segments that are matched and connected to each other. The two segments can move relative to each other to adjust the overall length, and can be relatively fixed after adjustment.

9. The auxiliary device for welding pipe flanges according to claim 8, characterized in that: An adjustable connector is provided between the two sections of the adjusting rod.

10. The auxiliary device for welding pipe flanges according to claim 9, characterized in that: The adjustable connector is an automatic adjustment structure that automatically adjusts the relative position of the two sections according to the inner diameter of the pipe.

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