A tool for pipe welding heat treatment

Abstract

The utility model relates to pipeline welding technical field, and disclose a kind of for pipeline welding heat treatment's tool, including first mobile seat, the inside installation of first mobile seat is electric telescopic handle, and the output end fixedly connected with second mobile seat of electric telescopic handle, the outer surface fixedly connected with slide pole of first mobile seat upper end, the inside installation of second mobile seat is motor, and the output end fixedly connected with screw rod of motor, the outer surface of slide pole and screw rod is provided with adjusting replacement structure.The utility model is by pulling positioning rod outward, so that the end of positioning rod is separated from the inside of positioning hole, at this time rotatable lower heating shield and upper heating shield, so that the inclination of lower heating shield and upper heating shield can be adjusted according to the angle of pipeline bending, then positioning rod can be loosened, so that positioning rod is reset under the self elasticity of spring, so that the end of positioning rod is inserted in the inside of positioning hole at corresponding position.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology; more specifically, it relates to a tool for heat treatment of pipeline welding. Background Technology

[0002] In thermal power plants, metal pipelines are key components for transporting media such as steam, water, and flue gas, and their safety and reliability directly affect the stability of unit operation. Welding is a core process in pipeline installation and maintenance, and welding heat treatment (WHT) is a crucial step in controlling residual welding stress and improving joint performance.

[0003] Currently, existing heat treatment tools suffer from several drawbacks. Firstly, the heating element's inner diameter is relatively uniform, making it difficult to adjust for different pipe diameters. This reduces the equipment's applicability. Secondly, the fixed operating angle of most existing equipment makes it difficult to heat bends in the pipe, potentially leading to stress at these bends and reducing the pipe's lifespan. Therefore, a new tool for heat treatment of pipe welding is urgently needed to address these issues. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a tool for heat treatment of pipe welding to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a tool for heat treatment of pipe welding, comprising:

[0006] A first movable seat, an electric telescopic rod is installed inside the first movable seat, and a second movable seat is fixedly connected to the output end of the electric telescopic rod. A slide rod is fixedly connected to the outer surface of the upper end of the first movable seat. A motor is installed inside the second movable seat, and a lead screw is fixedly connected to the output end of the motor. An adjustment and replacement structure is provided on the outer surface of the slide rod and the lead screw.

[0007] The adjustment and replacement structure includes connecting blocks, and there are two sets of connecting blocks, with the two sets of connecting blocks respectively sleeved on the outer surfaces of the slide rod and the lead rod.

[0008] Preferably, the adjustment and replacement structure further includes connecting holes, and there are two sets of connecting holes. The two sets of connecting holes are respectively opened inside the outer surface of the two sets of connecting blocks on the side close to each other. A first mounting groove is opened inside the inner wall surface of one side of the connecting hole, and a positioning rod is inserted into the first mounting groove. A spring is sleeved on the outer surface of the positioning rod. A connecting rod is inserted into the connecting hole, and a positioning hole is opened on the outer surface of the connecting rod. There are multiple sets of positioning holes. A lower heating guard plate is fixedly connected to the outer surface of the two sets of connecting rods on the side close to each other. A second mounting groove is opened inside the outer surface of the upper two ends of the lower heating guard plate. A locking groove is opened inside the inner wall surface of one side of the second mounting groove. A docking block is inserted into the second mounting groove, and a locking block is fixedly connected to the outer surface of one side of the docking block. An upper heating guard plate is fixedly connected to the two sets of docking blocks on the side close to each other. This design allows the positioning rod to move inside the first mounting groove.

[0009] Preferably, the internal dimensions of the connecting hole are adapted to the external dimensions of the connecting rod, which makes the connecting rod more stable when rotating inside the connecting hole.

[0010] Preferably, a limiting ring is fixedly connected to the outer surface of the positioning rod, and the two ends of the spring abut against the surface of one side of the limiting ring and the inner wall surface of one side of the first mounting groove, respectively. This design allows the positioning rod to reset itself after moving inside the first mounting groove.

[0011] Preferably, the external dimensions of one end of the positioning rod are adapted to the internal dimensions of the positioning hole. This design makes the one end of the positioning rod more stable when inserted into the positioning hole.

[0012] Preferably, the external dimensions of the mating block are adapted to the internal dimensions of the second mounting groove, and the external dimensions of the locking block are adapted to the internal dimensions of the locking groove. This design makes the mating block more stable when inserted into the second mounting groove.

[0013] The technical effects and advantages of this utility model are as follows: By activating the electric telescopic rod, the first and second moving seats can be moved further apart or closer together, thereby adjusting the distance between the first and second moving seats according to the diameter of the pipe. Then, two sets of connecting blocks can be fitted onto the outer surfaces of the slide rod and the lead rod respectively. Subsequently, a lower heating guard plate and an upper heating guard plate of appropriate size can be installed according to the actual size of the pipe. Thus, the inner diameter of the heating component of the equipment can be adjusted according to the pipe diameter of different pipes, thereby improving the applicability of the equipment to a certain extent.

[0014] By pulling the positioning rod outward, one end of the positioning rod disengages from the positioning hole. At this point, the lower and upper heating plates can be rotated, allowing adjustment of their inclination according to the pipe's bending angle. Subsequently, the positioning rod can be released, allowing it to automatically reset under the spring's elasticity. This causes one end of the positioning rod to insert into the corresponding positioning hole, positioning the inclination of the lower heating plate after rotation. This prevents stress from remaining at the pipe's bends, thus avoiding a reduction in pipe lifespan and improving the equipment's practicality to a certain extent. Moreover, its overall structure is simple and reasonable in design, highly practical, and easy to promote and apply. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is an exploded three-dimensional structural diagram of the first movable seat of this utility model.

[0017] Figure 3 This is a three-dimensional exploded view of the adjustable and replaceable structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the usage state of this utility model.

[0019] The attached figures are labeled as follows: 1. First movable seat; 2. Electric telescopic rod; 3. Second movable seat; 4. Slide rod; 5. Lead screw; 6. Adjustment and replacement structure; 61. Connecting block; 62. Connecting hole; 63. First mounting groove; 64. Positioning rod; 65. Spring; 66. Connecting rod; 67. Positioning hole; 68. Lower heating guard plate; 69. Second mounting groove; 610. Engaging groove; 611. Connecting block; 612. Engaging block; 613. Upper heating guard plate. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The pipe welding involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] like Figures 1-4 As shown, this embodiment proposes a tool for heat treatment of pipe welding, comprising:

[0023] The first movable seat 1 has an electric telescopic rod 2 installed inside it, and the output end of the electric telescopic rod 2 is fixedly connected to the second movable seat 3. The upper outer surface of the first movable seat 1 is fixedly connected to the slide rod 4. The second movable seat 3 has a motor installed inside it, and the output end of the motor is fixedly connected to the lead screw 5. The outer surfaces of the slide rod 4 and the lead screw 5 are provided with an adjustment and replacement structure 6.

[0024] In this embodiment, the design activates the electric telescopic rod 2, causing the first movable seat 1 and the second movable seat 3 to move away from or closer to each other. At this time, the distance between the first movable seat 1 and the second movable seat 3 can be adjusted according to the actual length of the pipe diameter. Then, the motor can be activated, causing the output end of the motor to drive the lead screw 5 to rotate, thereby adjusting the height of the adjustment and replacement structure 6 on the outer surface of the lead screw 5.

[0025] Example 2

[0026] like Figure 3 and Figure 4 As shown, based on the same concept as the above embodiments, this embodiment also proposes:

[0027] The adjustment and replacement structure 6 includes connecting blocks 61, with two sets of connecting blocks 61 respectively fitted onto the outer surfaces of the slide rod 4 and the lead screw 5. The adjustment and replacement structure 6 also includes connecting holes 62, with two sets of connecting holes 62 respectively located inside the outer surfaces of the two sets of connecting blocks 61 on their adjacent sides. A first mounting groove 63 is formed inside the inner wall surface of one side of the connecting hole 62, and a positioning rod 64 is inserted into the first mounting groove 63. A spring 65 is fitted onto the outer surface of the positioning rod 64. A connecting rod 66 is inserted into the connecting hole 62, and a positioning hole 67 is formed on the outer surface of the connecting rod 66, with multiple sets of positioning holes 67. A lower heating guard plate 68 is fixedly connected to the outer surfaces of the two sets of connecting rods 66 on their adjacent sides. Second mounting grooves 69 are formed inside the inner surfaces of the upper ends of the lower heating guard plate 68, and a second mounting groove 69 is formed on the inner wall surface of one side of the second mounting groove 69. The device has an internal engagement groove 610, and a mating block 611 is inserted into the second mounting groove 69. A engagement block 612 is fixedly connected to the outer surface of one side of the mating block 611. The upper heating guard plate 613 is fixedly connected to the two sets of mating blocks 611 that are close to each other. The internal dimensions of the connecting hole 62 are adapted to the external dimensions of the connecting rod 66. A limit ring is fixedly connected to the outer surface of the positioning rod 64. The two ends of the spring 65 abut against the surface of one side of the limit ring and the inner wall surface of one side of the first mounting groove 63, respectively. This design makes the connecting rod 66 more stable when inserted into the connecting hole 62. This design also allows the positioning rod 64 to return to its original position under the elasticity of the spring 65 after moving inside the first mounting groove 63. This allows one end of the positioning rod 64 to be inserted into the corresponding positioning hole 67, thereby positioning the lower heating guard plate 68 and the upper heating guard plate 613 in terms of their usage position and angle.

[0028] The external dimensions of one end of the positioning rod 64 are adapted to the internal dimensions of the positioning hole 67, the external dimensions of the mating block 611 are adapted to the internal dimensions of the second mounting groove 69, and the external dimensions of the locking block 612 are adapted to the internal dimensions of the locking groove 610. This design makes the positioning rod 64 more stable when it is inserted into the positioning hole 67, the mating block 611 more stable when it is inserted into the second mounting groove 69, and the locking block 612 more stable when it is locked into the locking groove 610, thereby completing the connection between the upper heating guard plate 613 and the lower heating guard plate 68.

[0029] Working Principle: When using the equipment, first place it in a suitable position. Activate the electric telescopic rod 2 to move the first moving seat 1 and the second moving seat 3 closer together or further apart. The distance between the first moving seat 1 and the second moving seat 3 can be adjusted according to the pipe diameter. Select the appropriate lower heating guard plate 68 and the second mounting groove 69 for the pipe size. Next, pull the positioning rod 64 outwards, allowing it to retract into the first mounting groove 63. At this point, the spring 65 is compressed. Simultaneously, the connecting rod 66 can be inserted into the connecting hole 62. Rotate the lower heating guard plate 68 to a suitable position according to the actual inclination of the pipe. Then, release the positioning rod 64, allowing it to reset itself under the elasticity of the spring 65. This positions the connecting rod 66 inside the connecting hole 62, thus positioning the angle of the lower heating guard plate 68 after rotation. At this point, start the motor to rotate the lead screw 5, causing the connecting block 61 on the outer surface of the lead screw 5 to move upwards or downwards. Moving downwards allows the lower heating plate 68 to approach the bottom of the pipe. Then, the positions of the connecting blocks 611 at both ends of the upper heating plate 613 correspond to the positions inside the second mounting grooves 69 at both ends of the lower heating plate 68. The connecting blocks 611 are then inserted into the second mounting grooves 69, and the locking blocks 612 engage with the locking grooves 610. This allows the upper heating plate 613 and the lower heating plate 68 to be fitted onto the outer surface of the pipe. Simultaneously, the first moving seat 1 and the second moving seat 3 move slowly and synchronously, allowing the lower heating plate 68 and the upper heating plate 613 to uniformly heat the outer surface of the pipe. This process can be repeated to adjust the distance between the first moving seat 1 and the second moving seat 3. The lower heating plate 68 and the upper heating plate 613 can be replaced according to the size of the pipe. The operating angle and height of the lower heating plate 68 and the upper heating plate 613 can also be adjusted according to the inclination and height of the pipe. This is the complete working principle of this utility model.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tool for heat treatment of pipe welding, characterized in that, include: The first movable seat (1) is equipped with an electric telescopic rod (2) inside the first movable seat (1), and the output end of the electric telescopic rod (2) is fixedly connected to the second movable seat (3). The upper outer surface of the first movable seat (1) is fixedly connected to a slide rod (4). The second movable seat (3) is equipped with a motor inside the second movable seat (3), and the output end of the motor is fixedly connected to a lead screw (5). The outer surfaces of the slide rod (4) and the lead screw (5) are provided with an adjustment and replacement structure (6). The adjustment and replacement structure (6) includes a connecting block (61), and there are two sets of connecting blocks (61), and the two sets of connecting blocks (61) are respectively sleeved on the outer surfaces of the slide rod (4) and the lead screw (5).

2. The tool for heat treatment of pipe welding according to claim 1, characterized in that: The adjustment and replacement structure (6) further includes connecting holes (62), and there are two sets of connecting holes (62). The two sets of connecting holes (62) are respectively opened inside the outer surface of the two sets of connecting blocks (61) on the side close to each other. A first mounting groove (63) is opened inside the inner wall surface of one side of the connecting hole (62), and a positioning rod (64) is inserted into the first mounting groove (63). A spring (65) is sleeved on the outer surface of the positioning rod (64). A connecting rod (66) is inserted into the connecting hole (62), and a positioning hole (67) is opened on the outer surface of the connecting rod (66). Multiple sets of positioning holes (67) are provided. The outer surfaces of the two sets of connecting rods (66) that are close to each other are fixedly connected to the lower heating guard plate (68). The inner surfaces of the upper two ends of the lower heating guard plate (68) are respectively provided with second mounting grooves (69). The inner surface of one side of the second mounting groove (69) is provided with a locking groove (610). A docking block (611) is inserted into the second mounting groove (69). A locking block (612) is fixedly connected to the outer surface of one side of the docking block (611). The upper heating guard plate (613) is fixedly connected to the two sets of docking blocks (611) that are close to each other.

3. A tool for heat treatment of pipe welding according to claim 2, characterized in that: The internal dimensions of the connecting hole (62) are adapted to the external dimensions of the connecting rod (66).

4. A tool for heat treatment of pipe welding according to claim 2, characterized in that: The outer surface of the positioning rod (64) is fixedly connected to a limiting ring, and the two ends of the spring (65) abut against the surface of one side of the limiting ring and the inner wall surface of one side of the first mounting groove (63), respectively.

5. A tool for heat treatment of pipe welding according to claim 2, characterized in that: The external dimensions of one end of the positioning rod (64) are adapted to the internal dimensions of the positioning hole (67).

6. A tool for heat treatment of pipe welding according to claim 2, characterized in that: The external dimensions of the mating block (611) are adapted to the internal dimensions of the second mounting groove (69), and the external dimensions of the engaging block (612) are adapted to the internal dimensions of the engaging groove (610).

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