A portable pipeline tee lofting device and method of use

Abstract

A movable pipeline tee laying-out device and a method thereof, comprising a laying-out device main body and a moving clamping mechanism; the laying-out device main body comprises a main pipe, an upper support frame, a lower support frame, and a positioning rod fixed on the support frames by fastening bolts; the main pipe is cylindrical, and the upper and lower support frames are connected to the main pipe respectively; the upper and lower support frames each comprise a plurality of skeleton frames distributed in a ring shape, and a sliding slot is formed on the skeleton frame; the fastening bolts are matched with the sliding slots of the upper and lower support frames, and the positioning rod is fixed on the upper and lower support frames. During laying-out, the laying-out device main body is placed on the upper portion of a parent pipe, and the contact points of the positioning rod and the outer wall of the parent pipe are manually marked. The laying-out device main body is removed and sleeved on a branch pipe which needs to be machined, and according to the arc-shaped path formed by the positioning rod, the branch pipe is determined to be machined with a beveling trajectory and is marked. The beveling is cut on the parent pipe and the branch pipe respectively.

Description

Technical Field

[0001] This patent relates to the field of pipeline tee layout technology, specifically to a mobile pipeline tee layout device. Background Technology

[0002] A tee is a pipe fitting formed by the intersection of two pipes, typically consisting of a main pipe and a branch pipe. It is widely used in the construction of oil, gas, and chemical plants, and is produced in very large quantities. The accuracy of tee cutting and layout directly affects the quality of pipe assembly and welding.

[0003] In the nuclear industry construction sector, process and ventilation ducts also involve numerous tee installations. When fabricating tees, lines must be drawn at the interface between the main pipe and branch pipe, then the pipe bevels are cut along the drawn lines, and finally the main pipe and branch pipe are matched and welded. Currently, this is usually done manually by measuring and laying out the lines to determine the interface lines between the main pipe and branch pipe. The technical drawback of this manual layout is that construction workers need to constantly compare and repeatedly polish the interfaces between the main pipe and branch pipe until they match perfectly. The efficiency of the layout is directly related to the skill level of the workers, and there is a high probability that it cannot be completed in one go, requiring multiple measurements and adjustments, thus being time-consuming and labor-intensive, resulting in extremely low efficiency for this work.

[0004] By fitting angle positioning rings of different sizes onto the angle positioning rod, the layout requirements for oblique tees of different pipe diameters can be met. However, the layout is done manually. For pipes of different diameters, different sizes of angle positioning rings need to be used. When the pipe diameter is large, the required angle positioning rings are correspondingly larger, which is not conducive to manual operation. Platform carts and scaffolding are sometimes necessary for assistance. The tooling is not easily adjusted or fixed, thus limiting its layout efficiency and applicability.

[0005] The paper, "Measurement and Fabrication Method of Pipeline T-Joint Fabrication and Layout Tool," utilizes a simulated connection between a branch pipe and a main pipe to form a tee, designing a pipeline layout tool convenient for on-site use. The tool consists of two positioning plates, one rubber plate, two positioning bolts, four nuts, one positioning block, and multiple positioning rulers. The positioning bolts securely connect the positioning plates, rubber plate, and positioning block. Multiple positioning rulers are vertically inserted into the positioning holes in the positioning plates and rubber plate. The positioning block determines the relative position of the tool to the pipe. By moving the multiple positioning rulers up and down, the intersection line of the opening in the main pipe can be determined. Transferring the position of the positioning rulers obtained on the main pipe to the branch pipe yields the intersection line for cutting the branch pipe. The tool has different positioning holes on the rubber plate to meet the layout requirements of tees with different pipe diameters. However, the positioning rulers and positioning holes are fixed solely by the friction of the rubber plate, which will affect the layout accuracy during actual operation. Furthermore, the tool is manually operated for layout, making rotation and angle adjustment inconvenient; therefore, it is not suitable for laying out large-diameter tees or oblique tees. Summary of the Invention

[0006] The purpose of this invention is to design a mobile pipe tee layout device to solve the problems of repeated measurement, inconvenient operation, and low layout efficiency in existing pipe tee layout technologies.

[0007] The technical solution of the present invention is as follows: a movable pipe tee layout device, comprising a layout device body and a movable clamping mechanism;

[0008] The main body of the layout device includes a main pipe, an upper support frame, a lower support frame, and a positioning rod fixed to the support frame by fastening bolts; the main pipe is cylindrical, and the upper and lower support frames are respectively connected to the upper and lower support frames. The upper and lower support frames each include multiple ring-shaped skeletons, and sliding grooves are opened on the skeletons. The fastening bolts cooperate with the sliding grooves of the upper and lower support frames to fix the positioning rods on the upper and lower support frames.

[0009] The mobile clamping mechanism includes connecting pipe clamps, a mobile platform, two screw jacks, four sets of bearing seats, two sets of optical axis support frames, a rotating shaft, and an angle measuring instrument. The screw jacks are bolted to the mobile platform. The bearing seats and optical axis support frames are bolted to the top of the screw jacks. The rotating shaft passes through the inside of the bearing seats. The connecting parts of the rotating shaft and the main body of the layout device are bolted to each other through connecting pipe clamps. The angle measuring instrument is attached to the connection between the rotating shaft and the main body of the layout device.

[0010] There are multiple positioning rods, which are round rods of equal length with hollowed-out sections in the middle, and their bottoms are set in a conical shape.

[0011] The positioning rod is made of lightweight PVC material, with a 1mm thick conical head.

[0012] Both the upper and lower support frames have sixteen skeletons arranged in a ring, and the sides of the skeletons are marked with graduations.

[0013] It also includes a connector, which is fixed to the middle of the main pipe.

[0014] The positions of the positioning rods on the upper and lower support frames are adjusted according to the diameter of the pipe being laid out.

[0015] The main body of the surveying device is raised and lowered by rotating the screw jack, and the screw jack has a self-locking function.

[0016] The main body of the layout device is rotated by rotating the rotating shaft.

[0017] A method for using a portable pipe tee layout device includes the following steps:

[0018] S1: Place the main body of the layout device on the upper part of the mother pipe, measure and determine the docking angle, loosen the fastening bolts appropriately, and adjust the positioning rod;

[0019] S2: When the positioning rod is in contact with the outer wall of the mother tube, tighten the fastening bolts to ensure that the positioning rod is stable and does not move after the position adjustment is completed, and mark the contact point between the positioning rod and the outer wall of the mother tube;

[0020] S3: Remove the main body of the layout device and place it on the branch pipe that needs to be beveled. Based on the arc path formed by the positioning rod, determine the bevel trajectory that the branch pipe needs to be beveled and mark it.

[0021] S4: Remove the main body of the layout device, draw auxiliary lines according to the marked points, and cut bevels on the main pipe and branch pipe respectively.

[0022] In step S4, after cutting the bevel, the main pipe and branch pipe are welded into a tee structure according to the bevel.

[0023] The significant advantages of this invention are:

[0024] 1. No need to replace different locating rings of varying specifications to accommodate tee layouts for pipe diameters. Instead, a locating rod and a sliding groove are installed on the main body of the layout device. When the main body of the layout device contacts the pipe to be laid out, the fastening bolts of the main body are loosened according to the specific dimensions of the pipe. The locating rod is then moved up, down, left, and right to adjust, ensuring the main body of the layout device fits snugly against the outer wall of the pipe. The fastening bolts of the layout device are then tightened, and a bevel trajectory is manually formed using the contact point as a reference. This method of simulating the pairing of the main pipe and branch pipe to form a tee ensures the accuracy of the tee opening.

[0025] 2. The main body of the layout device can be rotated and raised by the moving clamping mechanism, which is not limited by the layout angle and pipe size, thus meeting the layout requirements of oblique tees and large-diameter tees, making the operation more convenient, allowing for single-person operation, which helps to improve layout efficiency and save labor. Attached Figure Description

[0026] Figure 1 Schematic diagram of a movable pipe tee layout device;

[0027] Figure 2 Top view of a movable pipe tee layout device;

[0028] Figure 3 This is a schematic diagram of the movable clamping mechanism;

[0029] Figure 4 A schematic diagram of the operation of a movable pipeline tee layout device;

[0030] Figure 5 A schematic diagram of the operation of a movable pipeline tee layout device;

[0031] Figure 6 A three-dimensional schematic diagram of the main pipe and branch pipes.

[0032] Figure 7 Plan view of main pipe and branch pipe

[0033] In the diagram: 1-Main pipe; 2-Support frame; 3-Positioning rod; 4-Fastening bolt; 5-Connector; 6-Connecting pipe clamp; 7-Moving platform; 8-Screw jack; 9-Bearing seat; 10-Optical axis support frame; 11-Rotating shaft; 12-Angle measuring instrument; 13-Main pipe; 14-Branch pipe; 15-Lower support frame Detailed Implementation

[0034] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.

[0035] The terminology used in one or more embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this application. The singular forms “a,” “the,” and “the” used in one or more embodiments of this application and in the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” used in one or more embodiments of this application refers to and includes any or all possible combinations of one or more associated listed items.

[0036] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this application, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this application, and similarly, second may also be referred to as first.

[0037] A movable pipe tee layout device includes a layout device body and a movable clamping mechanism;

[0038] like Figure 1 , 2 As shown, the main body of the layout device includes a main pipe 1, an upper support frame 2, a lower support frame 15, and a positioning rod 3 fixed to the support frame 2 by fastening bolts 4. The main pipe 1 is cylindrical, and its upper and lower parts are respectively connected to the upper support frame 2 and the lower support frame 15. The upper support frame 2 and the lower support frame 15 each include multiple ring-shaped skeletons, and sliding grooves are opened on the skeletons. The fastening bolts 4 cooperate with the sliding grooves of the upper support frame 2 and the lower support frame 15 to fix the positioning rod 3 to the upper support frame 2 and the lower support frame 15.

[0039] There are multiple positioning rods 3, all of equal length, with a hollow center and a conical bottom. The conical head is 1mm thick. By changing the position of the positioning rods 3 in the grooves of the upper support frame 2 and the lower support frame 15, it can be used for laying out pipe tees of various diameters.

[0040] Furthermore, both the upper support frame 2 and the lower support frame 15 have sixteen skeletons arranged in a ring, and the sides of the skeletons are marked with scales.

[0041] It also includes connector 5, which is connected and fixed to the middle of the main pipe 1;

[0042] In this embodiment, the upper support frame 2, the lower support frame 15, the connector 5 and the main pipe 1 are fixed in relative positions.

[0043] It should be noted that the position of the positioning rod 3 on the upper support frame 2 and the lower support frame 15 can be adapted to the size of the pipe diameter to be laid out.

[0044] like Figure 3 As shown, the mobile clamping mechanism includes a connecting pipe clamp 6, a mobile platform 7, two screw jacks 8, four sets of bearing seats 9, two sets of optical axis support frames 10, a rotating shaft 11, and an angle measuring instrument 12. The screw jacks 8 are bolted to the mobile platform 7. The bearing seats 9 and the optical axis support frames 10 are both bolted to the top of the screw jacks 8. The rotating shaft 11 passes through the inside of the bearing seats 9. The connecting piece 5 between the rotating shaft 11 and the main body of the layout device is bolted to the connecting pipe clamp 6. The angle measuring instrument 12 is attached to the connection between the rotating shaft 11 and the main body of the layout device.

[0045] In this embodiment, the positioning rod 3 can be made of lightweight PVC material. The main pipe 13 and branch pipe 14 are two separate round pipes; now, the main pipe 13 and branch pipe 14 need to be processed into the following shape... Figure 5 , 6 The tee structure shown;

[0046] During the layout process, place the main body of the layout device on the upper part of the mother pipe 13. After measuring and determining the docking angle, loosen the fastening bolts 4 appropriately and adjust the positioning rods 3. When the positioning rods 3 are all in contact with the outer wall of the mother pipe 13, tighten the fastening bolts 4 to ensure that the positioning rods 3 are stable after the position adjustment is completed. Manually mark the contact points between the positioning rods 3 and the outer wall of the mother pipe 13. Remove the main body of the layout device and place it on the branch pipe 14 that needs to be beveled. Based on the arc path formed by the positioning rods 3, determine the bevel trajectory that needs to be processed on the branch pipe 14 and mark it. Remove the main body of the layout device, and according to the marked points, use a serpentine ruler to assist in marking lines, and cut bevels on the mother pipe 13 and the branch pipe 14 respectively.

[0047] It should be noted that after the movable clamping mechanism is bolted to the main body of the layout device, the main body of the layout device can be raised and lowered by rotating the handwheel of the screw jack 8. The screw jack 8 has a self-locking function and will lock when it rises to a certain height. In this embodiment, the screw jack 8 has a default stroke of 500mm and an actual load capacity of 500KG. By rotating the rotating shaft 11, the main body of the layout device can be rotated together. The angle measuring instrument 12 has a measurement accuracy of ±1° and a measurement range of -130° to 0°130°. The rotation angle is determined according to the specific specifications of the oblique tee to realize oblique tee layout and single-person operation.

[0048] A method for using a portable pipe tee layout device includes the following steps:

[0049] S1: Place the main body of the layout device on the upper part of the mother pipe 13, measure and determine the docking angle, loosen the fastening bolts 4 appropriately, and adjust the positioning rod 3;

[0050] S2: When the positioning rod 3 is in contact with the outer wall of the mother tube 13, tighten the fastening bolt 4 to ensure that the positioning rod 3 is stable and does not move after the position adjustment is completed. Manually mark the contact point between the positioning rod 3 and the outer wall of the mother tube 13.

[0051] S3: Remove the main body of the layout device and place it on the branch pipe 14 that needs to be beveled. Based on the arc path formed by the positioning rod 3, determine the bevel trajectory that the branch pipe 14 needs to be beveled and mark it.

[0052] S4: Remove the main body of the layout device. Using a serpentine ruler to mark the points, cut bevels on both the main pipe 13 and the branch pipe 14. Weld the main pipe 13 and branch pipe 14 together with the bevels to form a tee structure. Figure 5 , 6 As shown.

[0053] The above description is merely a preferred embodiment of this patent and is not intended to limit this patent. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this patent shall be included within the scope of protection of this patent.

[0054] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0056] The preferred embodiments disclosed above are merely illustrative of this application. The optional embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this application. These embodiments are selected and specifically described in this application to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application.

Claims

1. A movable pipe tee layout device, characterized in that: Includes the main body of the lofting device and the moving clamping mechanism; The main body of the layout device includes a main pipe (1), an upper support frame (2), a lower support frame (15), and a positioning rod (3) fixed to the support frame (2) by fastening bolts (4). The main pipe (1) is cylindrical and is connected to the upper support frame (2) and the lower support frame (15) at its top and bottom, respectively. The upper support frame (2) and the lower support frame (15) each include multiple ring-shaped skeletons, and grooves are opened on the skeletons. The fastening bolts (4) cooperate with the grooves of the upper support frame (2) and the lower support frame (15) to fix the positioning rod (3) on the upper support frame (2) and the lower support frame (15). According to the specific size of the pipe to be laid out, the fastening bolts of the main body of the layout device are loosened, and the positioning rod is moved up, down, left and right to adjust. The mobile clamping mechanism includes a connecting pipe clamp (6), a mobile platform (7), two screw jacks (8), four sets of bearing seats (9), two sets of optical axis support frames (10), a rotating shaft (11), and an angle measuring instrument (12). The screw jacks (8) are bolted to the mobile platform (7). The bearing seats (9) and the optical axis support frames (10) are bolted to the top of the screw jacks (8). The rotating shaft (11) passes through the inside of the bearing seats (9). The connecting part (5) between the rotating shaft (11) and the main body of the layout device is bolted to the connecting pipe clamp (6). The angle measuring instrument (12) is attached to the connection between the rotating shaft (11) and the main body of the layout device.

2. The movable pipe tee layout device according to claim 1, characterized in that: There are multiple positioning rods (3), which are round rods of equal length with hollowed-out middle sections and conical bottoms.

3. The movable pipe tee layout device according to claim 2, characterized in that: The positioning rod (3) is made of lightweight PVC material with a 1mm thick conical head.

4. The movable pipe tee layout device according to claim 1, characterized in that: The upper support frame (2) and the lower support frame (15) are both arranged in a ring with sixteen skeletons, and the sides of the skeletons are marked with scales.

5. A movable pipe tee layout device according to claim 1, characterized in that: It also includes a connector (5), which is fixedly connected to the middle of the main tube (1).

6. A movable pipe tee layout device according to claim 1, characterized in that: The position of the positioning rod (3) on the upper support frame (2) and the lower support frame (15) is adapted to the size of the pipe diameter to be laid out.

7. A movable pipe tee layout device according to claim 1, characterized in that: The main body of the staking device is raised and lowered by rotating the screw jack (8), and the screw jack (8) has a self-locking function.

8. A movable pipe tee layout device according to claim 1, characterized in that: The main body of the layout device is rotated by rotating the rotating shaft (11).

9. A method of using a portable pipe tee layout device, employing the portable pipe tee layout device as described in any one of claims 1-8, characterized in that: Includes the following steps: S1: Place the main body of the layout device on the upper part of the mother pipe (13), measure and determine the docking angle, loosen the fastening bolts (4) appropriately, and adjust the positioning rod (3); S2: When the positioning rod (3) is in contact with the outer wall of the mother tube (13), tighten the fastening bolt (4) to ensure that the positioning rod (3) is stable and does not move after the position adjustment is completed, and mark the contact point between the positioning rod (3) and the outer wall of the mother tube (13); S3: Remove the main body of the layout device and place it on the branch pipe (14) that needs to be beveled. Based on the arc path formed by the positioning rod (3), determine the bevel trajectory that the branch pipe (14) needs to be beveled and mark it. S4: Remove the main body of the layout device, draw lines according to the marked points, and cut bevels on the main pipe (13) and branch pipe (14) respectively.

10. The method of using a movable pipe tee layout device according to claim 9, characterized in that: In step S4, after cutting the bevel, the main pipe (13) and the branch pipe (14) are welded into a tee structure according to the bevel.

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