Steel pipe facilitating quick butt joint

Abstract

The utility model discloses a steel pipe convenient to butt joint quickly, including first steel pipe and second steel pipe and auxiliary positioner, auxiliary positioner includes bottom positioning board, top positioning board and adjusting lever, and adjusting lever is placed between top positioning board and bottom positioning board, and one end of adjusting lever is rotatively connected with top positioning board, and the bottom positioning board is opened with the threaded hole of adjusting lever another end screw thread connection, and top positioning board includes test surface, and the both ends of test surface are respectively installed with gravity sensor, and the bottom positioning board is installed with two display screens and level instrument electric connection respectively with two gravity sensors.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe technology, and more specifically, it relates to a steel pipe that is easy to quickly connect. Background Technology

[0002] Steel pipe is a type of steel with a hollow cross-section, its length being much greater than its diameter or circumference. It is classified by cross-sectional shape into round, square, rectangular, and irregularly shaped steel pipes; by application into pipes for transportation, engineering structures, thermal equipment, petrochemical industries, machinery manufacturing, geological drilling, and high-pressure equipment; and by manufacturing process into seamless steel pipes and welded steel pipes. Seamless steel pipes are further divided into hot-rolled and cold-rolled (drawn) types, while welded steel pipes are divided into straight-seam welded steel pipes and spiral-seam welded steel pipes. The specifications of steel pipes are expressed by their external dimensions (such as outer diameter or side length) and wall thickness, and their size range is very wide, from very small diameter capillary tubes to large-diameter pipes with diameters of several meters.

[0003] In steel pipe welding operations, it is often necessary to butt-weld two steel pipes. However, due to the hollow structure of steel pipes, the contact area of ​​their end faces is limited, leading to the following difficulties during butt welding: firstly, it is difficult to accurately align the end faces of the steel pipes; secondly, coaxiality is not easy to guarantee. Traditional butt welding relies on the experience of manual operators for visual alignment, which requires repeated adjustments and is inefficient. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a steel pipe that is easy to connect quickly.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A steel pipe for easy and quick docking includes a first steel pipe and a second steel pipe of the same size. An auxiliary locator is provided between the first and second steel pipes to align the ends of the first and second steel pipes. The auxiliary locator includes a bottom locating plate, a top locating plate, and an adjusting rod. The adjusting rod is positioned between the top and bottom locating plates, which are positioned opposite each other. The two ends of the bottom locating plate abut against the inner walls of the first and second steel pipes, respectively. One end of the adjusting rod is rotatably connected to the top locating plate. The bottom locating plate has a threaded hole that is threaded to the other end of the adjusting rod. The top locating plate includes a test surface corresponding to the inner walls of the first and second steel pipes. A gravity sensor is installed at each end of the test surface. The two gravity sensors abut against the inner walls of the first and second steel pipes, respectively. Two displays are installed on the bottom locating plate and electrically connected to the two gravity sensors, respectively. A level is installed at the middle of both the bottom and top locating plates.

[0007] A further configuration includes two spring force gauges located at both ends of the bottom positioning plate, with the top positioning plate and the bottom positioning plate respectively. The lifting rings of the spring force gauges are fixedly connected to the top positioning plate, and the hooks of the spring force gauges are detachably connected to the bottom positioning plate.

[0008] Further configured, the bottom positioning plate has two channels that respectively cooperate with two spring force gauges, and the two spring force gauges move within the two channels respectively.

[0009] A further configuration includes a positioning rope at the opening of the channel, arranged along the diameter of the channel opening. The two ends of the positioning rope are respectively placed on both sides of the channel opening. The two ends of the positioning rope are fixedly connected to the bottom positioning plate. The hook of the spring force gauge is detachably connected to the positioning rope.

[0010] A further setting is that the length of the positioning rope is greater than the opening diameter of the channel.

[0011] Further configured, the bottom positioning plate includes a positioning surface that abuts against the inner wall of the first steel pipe and the inner wall of the second steel pipe, and the positioning surface is arc-shaped.

[0012] Further configured, the level is a bubble level.

[0013] By adopting the above technical solution, the beneficial effects of this utility model are as follows: Through the design of the auxiliary locator, the bottom positioning plate and the top positioning plate can quickly align the ports of the first and second steel pipes. The adjusting rod can finely adjust the position of the top positioning plate to make the values ​​of the two gravity sensors consistent, further verifying the alignment of the ports of the first and second steel pipes, ensuring the precise alignment of the ports of the first and second steel pipes, and improving the accuracy of steel pipe docking. At the same time, the gravity sensors installed at both ends of the test surface of the top positioning plate and the display screen on the bottom positioning plate can monitor the contact pressure between the inner wall of the steel pipe port and the top positioning plate in real time, allowing the operator to make adjustments based on real-time data, reducing errors and repeated adjustment time during the docking process. Combined with a bubble level, the horizontal state of the first and second steel pipes can be quickly calibrated, ensuring that the coaxiality error of the ports of the first and second steel pipes in the horizontal and vertical directions is minimized. The entire docking operation is simple and quick, avoiding the problems of deviations in traditional manual visual alignment and the need for repeated adjustments, resulting in low docking efficiency. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 A schematic diagram showing the structure of the bottom positioning plate, top positioning plate, and adjusting rod working together.

[0016] Figure 3This is a schematic diagram of the structure of the adjusting rod and the screw hole.

[0017] In the diagram: First steel pipe 1, Second steel pipe 2, Auxiliary locator 100, Bottom positioning plate 3, Top positioning plate 4, Adjusting rod 5, Threaded hole 31, Test surface 111, Gravity sensor 6, Display screen 7, Level 8, Spring force gauge 9, Channel 10, Positioning rope 11, Positioning surface 222. Detailed Implementation

[0018] Reference Figures 1 to 3 The embodiments of this utility model will be further described below.

[0019] A type of steel pipe for easy and quick connection includes a first steel pipe 1 and a second steel pipe 2 of the same size. An auxiliary locator 100 is provided between the first steel pipe 1 and the second steel pipe 2 to align the ends of the first steel pipe 1 and the second steel pipe 2. The auxiliary locator 100 includes a bottom locating plate 3, a top locating plate 4, and an adjusting rod 5. The adjusting rod 5 is positioned between the top locating plate 4 and the bottom locating plate 3. The bottom locating plate 3 and the top locating plate 4 are arranged opposite to each other. The two ends of the bottom locating plate 3 correspond to the inner walls of the first steel pipe 1 and the second steel pipe 2, respectively. The bottom locating plate 3 includes a locating surface 222 that abuts against the inner walls of the first steel pipe 1 and the second steel pipe 2. The locating surface 222 is arc-shaped. The adjusting rod 5... One end is rotatably connected to the top positioning plate 4, and the bottom positioning plate 3 has a threaded hole 31 that is threaded to the other end of the adjusting rod 5. The top positioning plate 4 includes a test surface 111 corresponding to the inner wall of the first steel pipe 1 and the inner wall of the second steel pipe 2. A gravity sensor 6 is installed at both ends of the test surface 111. The two gravity sensors 6 are respectively in contact with the inner wall of the first steel pipe 1 and the inner wall of the second steel pipe 2. Two display screens 7 are installed on the bottom positioning plate 3 and electrically connected to the two gravity sensors 6 respectively. The signals of the gravity sensors 6 are directly transmitted to the corresponding display screens 7 through cables. A level 8 is installed in the middle of the bottom positioning plate 3 and the middle of the top positioning plate 4. The level 8 is a bubble level.

[0020] Working principle: Bring the ports of the first steel pipe 1 and the second steel pipe 2 close together, and insert the bottom positioning plate 3 and the top positioning plate 4 of the auxiliary locator 100 between the ports of the two steel pipes. The two ends of the arc-shaped positioning surface 222 on the bottom positioning plate 3 are respectively in contact with the bottom inner walls of the first steel pipe 1 and the second steel pipe 2. At this time, adjust the level 8 on the bottom positioning plate 3 to make the bottom positioning plate 3 horizontal so that the bottom inner walls of the ports of the first steel pipe 1 and the second steel pipe 2 are flush, thus initially achieving the alignment of the steel pipe ports. The two ends of the test surface 111 on the top positioning plate 4 are respectively in contact with the top inner walls of the first steel pipe 1 and the second steel pipe 2. At this time, adjust the level 8 on the top positioning plate 4 to make the top inner walls of the ports of the first steel pipe 1 and the second steel pipe 2 flush, thereby quickly aligning the ports of the first steel pipe 1 and the second steel pipe 2.

[0021] By rotating and threading the adjusting rod 5, the position of the top positioning plate 4 is finely adjusted, so that the two ends of the test surface 111 are more tightly fitted to the top inner wall of the first steel pipe 1 port and the top inner wall of the second steel pipe 2 port, respectively. Gravity sensors 6 installed at both ends of the test surface 111 of the top positioning plate 4 monitor the contact pressure between the inner wall of the steel pipe port and the top positioning plate 4 in real time. The signal from the gravity sensors 6 is transmitted to the display screen 7 on the bottom positioning plate 3 via cable. The operator can adjust the position of the steel pipe based on whether the data on the two display screens 7 are consistent, ensuring that the values ​​of the two gravity sensors 6 are consistent, further verifying the contact pressure between the top inner wall of the first steel pipe 1 port and the top inner wall of the second steel pipe 2 port. Alignment of the inner walls ensures precise alignment of the ends of the first steel pipe 1 and the second steel pipe 2, improving the accuracy of the pipe docking. By observing whether the data on the two displays 7 are consistent, it is determined whether the top inner walls of the ends of the first steel pipe 1 and the second steel pipe 2 are aligned. This allows the operator to make adjustments based on real-time data, reducing errors and repeated adjustment time during the docking process. The operator, in conjunction with the level 8, further adjusts the horizontal position of the steel pipes to ensure that the coaxiality error of the ends of the first steel pipe 1 and the second steel pipe 2 in the horizontal and vertical directions is minimized. The entire docking operation is simple and quick, avoiding the problems of deviations in traditional manual visual alignment and the need for repeated adjustments, which are inefficient.

[0022] Two spring force gauges 9 are respectively placed at both ends of the bottom positioning plate 3 between the top positioning plate 4 and the bottom positioning plate 3. The bottom positioning plate 3 has two channels 10 that mate with the two spring force gauges 9, allowing the two spring force gauges 9 to move within the channels 10. A positioning rope 11 is provided at the opening of each channel 10, extending along the diameter of the opening. The two ends of the positioning rope 11 are respectively placed on both sides of the opening of the channel 10 and are fixedly connected to the bottom positioning plate 3. The length of the positioning rope 11 is greater than the diameter of the opening of the channel 10. The positioning rope 11 is a non-deformable rope. The lifting ring of the spring force gauge 9 is fixedly connected to the top positioning plate 4, and the hook of the spring force gauge 9 is detachably connected to the positioning rope 11.

[0023] The spring force gauge 9 is set up to monitor the pressure between the top positioning plate 4 and the bottom positioning plate 3 in real time, ensuring the balance and consistency of forces between the top positioning plate 4 and the bottom positioning plate 3 during the docking process. This ensures that the top positioning plate 4 and the bottom positioning plate 3 are parallel to each other, aligning the ports of the first steel pipe 1 and the second steel pipe 2. Through the monitoring of the spring force gauge 9, operators can promptly detect and adjust uneven force distribution, avoiding the problem of deviation in the value of the gravity sensor 6 due to uneven force distribution at both ends of the top positioning plate 4. Observing the values ​​of the two spring force gauges 9, if the values ​​are consistent, it indicates that the top positioning plate 4 and the bottom positioning plate 3 are in a parallel state. The data transmitted by the gravity sensor 6 can be used as a reference, further improving the stability and reliability of the docking.

[0024] The design of the positioning rope 11 enables the detachment and connection of the hook of the spring balance 9 and the bottom positioning plate 3. When the auxiliary positioning device 100 is not used, it is convenient for the spring balance 9 to pass through the channel 10 so that the top positioning plate 4 and the bottom positioning plate 3 can be smoothly folded together, making storage convenient. The length of the positioning rope 11 is greater than the opening diameter of the channel 10, so that when the spring balance 9 passes through the channel 10, the positioning rope 11 can be moved to one side so as not to obstruct the spring balance 9 from passing through the channel 10.

[0025] For connecting steel pipes with different inner diameters, the distance between the top positioning plate 4 and the bottom positioning plate 3 can be adjusted by rotating the adjusting rod 5 to adapt to the connection of steel pipes with corresponding inner diameters, thereby enhancing the flexibility of use and improving versatility.

[0026] Spring force gauges 9 come in small, medium, and large sizes. Small ones typically have a total length of 280mm to 305mm, such as the LTZ-1 to LTZ-5 models which have a total length of 280mm, while the KL-0.25 to KL-5 models have a total length of 305mm. When the inner diameter of the steel pipe being connected is less than 280mm, the length of the spring force gauge 9 itself will affect the adjustment of the distance between the top positioning plate 4 and the bottom positioning plate 3. In this case, the hook of the spring force gauge 9 is not connected to the positioning rope 11, and the spring force gauge 9 passes directly through the corresponding channel 10 on the bottom positioning plate 3 and is not put into use, so as to avoid affecting the adaptation of the auxiliary positioner 100 to connect with steel pipes with smaller inner diameters.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel pipe for easy and quick connection, comprising a first steel pipe (1) and a second steel pipe (2) of the same size, characterized in that, An auxiliary locator (100) is provided between the first steel pipe (1) and the second steel pipe (2) to align the ports of the first steel pipe (1) and the second steel pipe (2). The auxiliary locator (100) includes a bottom locating plate (3), a top locating plate (4), and an adjusting rod (5). The adjusting rod (5) is positioned between the top locating plate (4) and the bottom locating plate (3). The bottom locating plate (3) and the top locating plate (4) are arranged opposite to each other. The two ends of the bottom locating plate (3) abut against the inner walls of the first steel pipe (1) and the second steel pipe (2), respectively. One end of the adjusting rod (5) is rotatably connected to the top locating plate (4). The plate (3) has a threaded hole (31) that is threaded to the other end of the adjusting rod (5). The top positioning plate (4) includes a test surface (111) corresponding to the inner wall of the first steel pipe (1) and the inner wall of the second steel pipe (2). A gravity sensor (6) is installed at both ends of the test surface (111). The two gravity sensors (6) are respectively in contact with the inner wall of the first steel pipe (1) and the inner wall of the second steel pipe (2). The bottom positioning plate (3) has two displays (7) that are electrically connected to the two gravity sensors (6). A level (8) is installed at the middle of the bottom positioning plate (3) and the middle of the top positioning plate (4).

2. The steel pipe for easy and quick connection according to claim 1, characterized in that, Two spring force gauges (9) are respectively placed at both ends of the bottom positioning plate (3) between the top positioning plate (4) and the bottom positioning plate (3). The lifting ring of the spring force gauge (9) is fixedly connected to the top positioning plate (4), and the hook of the spring force gauge (9) is detachably connected to the bottom positioning plate (3).

3. The steel pipe for easy and quick connection according to claim 2, characterized in that, The bottom positioning plate (3) has two channels (10) that cooperate with two spring force gauges (9), and the two spring force gauges (9) move in the two channels (10) respectively.

4. The steel pipe for easy and quick connection according to claim 3, characterized in that, The opening of the channel (10) is provided with a positioning rope (11) arranged along the diameter of the opening of the channel (10). The two ends of the positioning rope (11) are respectively placed on both sides of the opening of the channel (10). The two ends of the positioning rope (11) are fixedly connected to the bottom positioning plate (3). The hook of the spring force gauge (9) is detached from the positioning rope (11).

5. A steel pipe for easy and quick connection according to claim 4, characterized in that, The length of the positioning rope (11) is greater than the opening diameter of the channel (10).

6. The steel pipe for easy and quick connection according to claim 1, characterized in that, The bottom positioning plate (3) includes a positioning surface (222) that abuts against the inner wall of the first steel pipe (1) and the inner wall of the second steel pipe (2), and the positioning surface (222) is arc-shaped.

7. A steel pipe for easy and quick connection according to claim 1, characterized in that, The level (8) is a bubble level.

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