Auxiliary device and construction method for high-diameter pipe network convenient for welding construction

Abstract

The present invention discloses a high-diameter pipe network auxiliary device and construction method that are convenient for welding construction, wherein the device includes a bottom plate, a first arc plate and a lifting lug, an arc groove is arranged in the middle of the bottom plate, displacement plates are slidably connected on both sides of the groove, and a first arc plate is arranged at the front end of the displacement plate, and a fixing belt is arranged between the two first arc plates; a U-shaped frame is arranged behind the displacement plate, and extension plates are arranged at both ends of the bottom plate, and positioning screws and lifting lugs are arranged on the extension plates. The present invention plays a role in protecting the pipe port by arranging the first arc plate, the second arc plate and the positioning belt; at the same time, the positioning screw is arranged to play a supporting and stabilizing role; it not only ensures that friction, collision and damage occur during pipe hoisting, but also ensures the stability of the later welding construction; during construction, by arranging a translation device, it is convenient to locally move the entire pipe, and this device is used to replace the lifting equipment to save costs.

Description

Technical Field

[0001] This invention relates to a pipe support device, and more particularly to an auxiliary device and construction method for large-diameter pipe networks that facilitates welding construction, belonging to the field of pipe welding technology. Background Technology

[0002] When welding buried pipelines, the pipe ends of adjacent pipelines need to be connected first. When working in a sloping trench, which is divided into an upper trench and a lower trench, construction workers will set up a "Z"-shaped transition pipe at the junction of the upper and lower trenches to facilitate the connection between the upper and lower trench pipes. Due to the special shape of the transition pipe, it is easy for it to tilt and fall during hoisting, which can easily damage the pipe ends. Furthermore, when welding the transition pipe to the adjacent pipeline, it is not easy to fix the transition pipe, which seriously affects the welding operation between the pipe ends. Summary of the Invention

[0003] The positive and beneficial effects of this invention are: overcoming the shortcomings of the prior art, providing an auxiliary device for large-diameter pipe networks that facilitates welding construction, protecting the pipe openings of transition pipes, and ensuring the stability of pipe butt welding construction.

[0004] The technical solution adopted by this invention to solve the technical problem is as follows:

[0005] An auxiliary device for high-diameter pipe networks, facilitating welding construction, includes a base plate, a first arc-shaped plate, and lifting lugs. An arc-shaped groove is provided in the middle of the top surface of the base plate. Displacement plates are slidably connected to both sides of the arc-shaped groove, and a first arc-shaped plate is provided at the front end of each displacement plate. A positioning band is provided between the tops of the two first arc-shaped plates. A U-shaped frame is slidably connected to the base plate behind the displacement plates, and the U-shaped frame is fixed to the side of the base plate by bolts. Extension plates are provided at both ends of the base plate, and the extension plates are integrally formed with the base plate. Positioning screws are inserted into the extension plates and fixed by matching nuts. Lifting lugs are provided at the outer edges of the extension plates.

[0006] The two sides of the arc-shaped groove are respectively provided with displacement grooves, and the displacement plate is slidably connected to the displacement groove by a slider; the first arc-shaped plates located on both sides of the arc-shaped groove are symmetrically distributed; the upper end surface of the displacement plate is provided with a first handle, and the outer side of the top of the two first arc-shaped plates is respectively provided with a second handle; one end of the positioning belt is connected to one of the second handles, and the other end of the positioning belt passes through the other second handle and is fixed by bolts.

[0007] A second arc plate is provided on the right end face of the first arc plate. A limit plate is provided at the rear end of the second arc plate, and a bolt is provided on the outside of the limit plate. The bolt has a matching bolt hole on the outer wall of the first arc plate. The second arc plate is inserted into the first arc plate, and the width of the second arc plate is twice the thickness of the first arc plate.

[0008] The two ends of the U-shaped frame are located on the outside of the two sides of the base plate, and the U-shaped frame is slidably connected to the displacement groove by a slider; a first handle is provided on the top of the U-shaped frame; bolts are provided on the outside of the two sides of the U-shaped frame.

[0009] The positioning screw has a through hole at the position corresponding to the extension plate. The positioning screw passes through the through hole, and matching nuts are provided on the positioning screw at the upper and lower ends of the extension plate. The lower end of the positioning screw is tapered.

[0010] The construction method for the auxiliary device for large-diameter pipe networks that facilitates welding construction is characterized by comprising the following steps:

[0011] ① Auxiliary devices are installed at both ends of the transition pipe so that both ends of the transition pipe are placed on the arc-shaped grooves of the corresponding base plate. The outer walls of both ends of the pipe are clamped by moving the first arc-shaped plate. Finally, the outer walls of the pipe are wrapped tightly by the positioning belt and fixed by the bolts on the second handle.

[0012] ② Tie a rope to each of the lifting lugs and fix a hook at the other end of the rope; measure the distance from the bottom of the trench to the top of the trench, and then connect the rope to the lifting device so that the distance between the bottom of the rope and the lifting device is the same as the distance from the bottom of the trench to the top of the trench.

[0013] ③ Lift the transition pipe and place it in the trench, so that the base plate is at the bottom of the trench;

[0014] ④ Loosen the connection between the rope and the lifting device, and remove the lifting device;

[0015] ⑤ A translation device is installed above both ends of the transition pipe. The translation device consists of a support frame, an I-beam, a displacement base, and a push rod. The support frame is mounted on the displacement base via a vertical plate. There are two displacement bases, both arranged in an L-shape. A third handle is installed on the outer side of the top of each displacement base. At least one rotating roller is installed inside the support frame. Positioning blocks are distributed at both ends of the support frame. The I-beam is slidably connected to the support frame, and a rotating roller is installed on the top of the I-beam. A push rod is installed in the middle of the outer side of the I-beam, and the other end of the push rod passes through the push rod, which is fixed by a tightening bolt.

[0016] ⑥ Place the support frame above the transition pipe port, and vertically pass the other end of the rope on the lifting lug through the support frame so that the upper end of the rope is in front of the corresponding roller.

[0017] ⑦ Move the I-beam frame to a position behind the rotating roller, pull the rope to position the bottom plate above the bottom of the trench, and wrap the rope around the rotating roller at the top of the I-beam frame. Wrap the hook at the other end of the rope around the third handle and secure it to the third handle.

[0018] ⑧. The staff moves the pipe by holding the third handle to connect the upper end of the transition pipe with the pipe opening of the adjacent pipe. If the upper end of the transition pipe and the pipe opening in the upper trench are not on the same horizontal line, the staff pulls the rope to align the two pipe openings so that the staff can connect the two pipe openings.

[0019] 9. Insert the positioning screw into the hole on the extension plate. Before inserting, tighten the matching nut on the bottom of the positioning screw. When the positioning screw is inserted into the trench soil, use a hammer to insert the positioning screw into the soil, and the insertion depth is between 4cm and 5cm.

[0020] ⑩ Tighten a matching nut to the upper end of the positioning screw and fix the positioning screw in place with the nut; after fixing, the pipe opening can be welded.

[0021] The positive and beneficial effects of this invention are:

[0022] 1. The present invention provides a certain degree of protection by setting a first arc-shaped plate on both sides of the arc-shaped groove, so that the outer wall of the transition section pipe is distributed in a semi-enclosed shape; by setting a second arc-shaped plate on the right end of the first arc-shaped plate, it also provides protection for the pipe opening; by setting a positioning belt, the pipe is fixed and the stability of the pipe hoisting is ensured.

[0023] 2. The present invention uses a U-shaped frame behind the displacement plate to tighten the displacement plate, thereby fixing the outer wall of the pipe to the first arc-shaped plate.

[0024] 3. The present invention provides positioning screws on the extension plate, with the bottom of the positioning screws being conical. In use, the bottom of the positioning screws is inserted into the soil of the trench to fix them in place. At the same time, the extension plate can move up and down along the positioning screws, and the height of the base plate can be adjusted according to the position of the connector, which facilitates the subsequent welding construction.

[0025] 4. This invention shortens the construction cycle by adjusting the pipe height through rope pulling; the installation of a translation device allows workers to quickly connect the ends of two pipes; thus improving work efficiency and ensuring the smooth progress of welding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 This is a partial structural diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the translation device of the present invention. Detailed Implementation

[0029] The invention will be further explained and described below with reference to the accompanying drawings:

[0030] Example 1: See Figures 1-2 An auxiliary device for high-diameter pipe networks, facilitating welding construction, includes a base plate 1, a first arc-shaped plate 6, and lifting lugs 11. An arc-shaped groove 3 is provided in the middle of the top surface of the base plate 1. Displacement plates 5 are slidably connected to both sides of the arc-shaped groove 3, and a first arc-shaped plate 6 is provided at the front end of each displacement plate 5. A positioning band 16 is provided between the tops of the two first arc-shaped plates 6. A U-shaped frame 7 is slidably connected to the base plate 1 behind the displacement plate 5, and the U-shaped frame 7 is fixed to the side of the base plate 1 by bolts 12. Extension plates 2 are provided at both ends of the base plate 1, and the extension plates 2 are integral with the base plate 1. Positioning screws 9 are inserted into the extension plates 2, and the positioning screws 9 are fixed by matching nuts 10. Lifting lugs 11 are provided at the outer edge of the extension plates 2.

[0031] Displacement grooves 4 are respectively dug on both sides of the arc-shaped groove 3, and the displacement plate 5 is slidably connected to the displacement groove 4 by a slider; the first arc-shaped plates 6 located on both sides of the arc-shaped groove 3 are symmetrically distributed; a first handle 8 is provided on the upper end surface of the displacement plate 5, and a second handle 15 is provided on the outer side of the top of the two first arc-shaped plates 6 respectively; one end of the positioning band 16 is connected to one of the second handles 15, and the other end of the positioning band 16 passes through the other second handle 15 and is fixed by bolts.

[0032] A second arc plate 13 is provided on the right end face of the first arc plate 6. A limit plate 14 is provided at the rear end of the second arc plate 13, and a bolt is provided on the outside of the limit plate 14. The bolt has a matching bolt hole on the outer wall of the first arc plate 6. The second arc plate 13 is inserted into the first arc plate 6, and the width of the second arc plate 13 is twice the thickness of the first arc plate 6.

[0033] The two ends of the U-shaped frame 7 are located on the outside of the two sides of the base plate 1, and the U-shaped frame 7 is slidably connected to the displacement groove 4 by a slider; a first handle 8 is provided on the top of the U-shaped frame 7; bolts 12 are provided on the outside of the two sides of the U-shaped frame 7.

[0034] The positioning screw 9 has a through hole at the position corresponding to the extension plate 2. The positioning screw 9 passes through the through hole, and matching nuts 10 are provided on the positioning screw 9 at the upper and lower ends of the extension plate 2. The lower end of the positioning screw 9 is tapered.

[0035] In the above description, a recessed hole is provided on the right end face of the first arc plate, and a matching insert is provided at the position of the recessed hole corresponding to the inner side of the second arc plate 13. When in use, the insert is inserted into the corresponding recessed hole, and the limiting plate 14 is located outside the first arc plate, and the limiting plate is fixed to the first arc plate by bolts.

[0036] In the above description, the curvature of the right end face of the second arc-shaped plate matches that of the first arc-shaped plate, that is, the inner wall of the second arc-shaped plate is in close contact with the right end face of the first arc-shaped plate; the curvature of the limiting plate also matches that of the second arc-shaped plate.

[0037] In the above description, the U-shaped frame is located on the base plate behind the displacement plate and is slidably connected to the displacement groove at the upper end of the base plate.

[0038] In the above description, the length of the base plate satisfies the condition that when the first arc-shaped plate is moved away from both sides of the pipe, the U-shaped frame is still located in the displacement groove.

[0039] In the above description, the first arc-shaped plate matches the outer wall of the pipe.

[0040] Example 2: Figure 1-Figure 3 As shown, the construction method for the above-mentioned auxiliary device for large-diameter pipe networks that facilitates welding construction includes the following steps:

[0041] ① Auxiliary devices are set at both ends of the transition pipe so that both ends of the transition pipe are placed on the arc-shaped grooves 3 of the corresponding base plate. The outer walls of both ends of the pipe are clamped by moving the first arc-shaped plate 6. Finally, the outer walls of the pipe are wrapped tightly by the positioning belt 16 and fixed by the bolts on the second handle.

[0042] ② Tie a rope 17 to each of the lifting lugs 11 and fix a hook 18 to the other end of the rope 17; measure the distance from the bottom of the trench to the upper end of the trench, and then connect the rope 17 to the lifting device so that the distance between the bottom of the rope 17 and the lifting device is the same as the distance from the bottom of the trench to the upper end of the trench.

[0043] ③ Lift the transition pipe and place it in the trench, so that the base plate 1 is located at the bottom of the trench;

[0044] ④ Loosen the connection between rope 17 and the lifting device, and remove the lifting device;

[0045] ⑤ A translation device is installed above both ends of the transition pipe, wherein: the translation device consists of a support frame 19, an I-beam 21, a displacement base 23, and a push rod 28. The support frame 19 is mounted on the displacement base 23 via a vertical plate 22. There are two displacement bases 23, both distributed in an L-shape. A third handle 24 is provided on the outer side of the top of each displacement base 23. At least one rotating roller 20 is provided inside the support frame 19. Positioning blocks are distributed at both ends of the support frame 19. The I-beam 21 is slidably connected to the support frame 19, and the rotating roller 20 is provided on the top of the I-beam 21. A push rod 28 is provided in the middle of the outer side of the I-beam 21, and the other end of the push rod 28 passes through the push rod 28. The push rod 28 is fixed by a tightening bolt 27.

[0046] ⑥ Place the support frame 19 above the transition pipe port, and vertically pass the other end of the rope 17 on the lifting lug 11 through the support frame 19 so that the upper end of the rope 17 is in front of the corresponding roller 20.

[0047] ⑦ Move the I-beam frame 21 to a position behind the rotating roller 20, pull the rope 17 so that the base plate 1 is above the bottom of the trench, and wrap the rope 17 around the rotating roller 20 at the top of the I-beam frame 21. Wrap the hook at the other end of the rope 17 around the third handle 24 and fix it to the third handle 24. This step is used to fix the rope 17 and describe the movement trajectory of the rope.

[0048] ⑧. The staff moves the pipe by holding the third handle 24 to connect the upper end of the transition pipe with the pipe opening of the adjacent pipe. If the upper end of the transition pipe and the pipe opening in the upper trench are not on the same horizontal line, the staff pulls the rope 17 to align the two pipe openings so that the staff can connect the two pipe openings.

[0049] 9. Insert the positioning screw 9 into the hole on the extension plate. Before inserting, screw the matching nut on the bottom of the positioning screw 9. When the positioning screw 9 is inserted into the soil of the trench, use a hammer to insert the positioning screw 9 into the soil, and the insertion depth is between 4cm and 5cm.

[0050] ⑩ Tighten a matching nut to the upper end of the positioning screw 9 and fix the positioning screw 9 with the nut; after fixing, the pipe opening can be welded.

[0051] In the above description, during construction, we set up auxiliary devices at both ends of the transition pipe and a translation device above each auxiliary device to facilitate the movement of the transition pipe;

[0052] In the above description, displacement grooves are provided on both sides of the support frame, the bottom of the I-beam is slidably connected to the displacement grooves, the push rod pushes the movement of the I-beam, and it is fixed by the tightening bolts on the positioning block.

[0053] The support frame is evenly distributed by the rotating rollers. The rope passes vertically through the gap above the support frame and wraps around the outside of the corresponding rotating roller, and finally wraps around the rotating roller at the top of the I-beam.

[0054] The displacement bases are distributed in an L-shape, and there are two of them, symmetrically distributed on both sides of the outside of the groove.

[0055] The positioning screw is used to support the base plate and prevent the pipe from shaking when workers are welding.

[0056] This invention protects the pipe ends by setting up a first arc-shaped plate, a second arc-shaped plate, and a positioning band; at the same time, it provides support and stability by setting positioning screws; this not only prevents friction, collision, and damage during pipe hoisting, but also ensures the stability of subsequent welding construction; during construction, the installation of a translation device facilitates the partial movement of the entire pipe, and this device can replace lifting equipment, saving costs.

Claims

1. A large-diameter pipe network auxiliary device that is convenient for welding construction, comprising a bottom plate (1), a first curved plate (6) and a lifting lug (11), characterized in that: An arc-shaped groove (3) is provided at the middle position of the top surface of the bottom plate (1), and displacement plates (5) are slidably connected to the two sides of the arc-shaped groove (3), and a first arc-shaped plate (6) is provided at the front end of each displacement plate (5); a positioning belt (16) is provided between the tops of the two first arc-shaped plates (6); a U-shaped frame (7) is slidably connected to the bottom plate (1) behind the displacement plate (5), and the U-shaped frame (7) is fixed to the side of the bottom plate (1) by bolts (12); extension plates (2) are provided at both ends of the bottom plate (1), and the extension plates (2) and the bottom plate (1) are in an integrated structure; The extension plate (2) is provided with a positioning screw (9), and the positioning screw (9) is fixed by a matching nut (10); a lifting ear (11) is provided at the outer edge of the extension plate (2); displacement grooves (4) are respectively excavated on both sides of the arc-shaped groove (3), and the displacement plate (5) is slidably connected to the displacement groove (4) through a slider; the first arc plates (6) located on both sides of the arc-shaped groove (3) are symmetrically distributed; the upper end surface of the displacement plate (5) is provided with a first handle (8), and the outer sides of the tops of the two first arc plates (6) are respectively provided with a second handle (15), and the One end of the positioning belt (16) is connected to one of the second handles (15), and the other end of the positioning belt (16) passes through the other second handle (15) and is fixed by a bolt; a second arc plate (13) is respectively arranged on the right end surface of the first arc plate (6), a limit plate (14) is arranged at the rear end of the second arc plate (13), and a bolt is arranged on the outside of the limit plate (14), and a matching bolt hole is arranged on the outer wall of the first arc plate (6) corresponding to the bolt; the second arc plate (13) is plugged into the first arc plate (6), and the width of the second arc plate (13) is The U-shaped frame (7) is twice the thickness of the first arc plate (6); the two ends of the U-shaped frame (7) are located outside the two sides of the bottom plate (1), and the U-shaped frame (7) is slidably connected with the displacement groove (4) through a slider; a first handle (8) is provided on the top of the U-shaped frame (7); bolts (12) are provided outside the two sides of the U-shaped frame (7); a through hole is provided at the position of the positioning screw (9) corresponding to the extension plate (2), the positioning screw (9) passes through the through hole, and matching nuts (10) are provided on the positioning screw (9) at the upper and lower ends of the extension plate (2); the lower end of the positioning screw (9) is distributed in a cone shape.

2. The construction method of the large-diameter pipe network auxiliary device that is convenient for welding construction according to claim 1 is characterized in that: The steps include: ①, auxiliary devices are respectively arranged at both ends of the transition pipe, so that the two ends of the transition pipe are respectively placed on the arc-shaped grooves (3) of the corresponding bottom plate, and the outer walls of the two ends of the pipe are clamped by moving the first arc-shaped plate (6), and finally the outer wall of the pipe is tightly wrapped by the positioning belt (16) and fixed by the bolts on the second handle; ②, tie a rope (17) to each lifting lug (11), and fix a hook (18) on the other end of the rope (17); measure the distance between the bottom of the groove and the upper end of the groove, and then connect the rope (17) to the lifting device so that the distance between the bottom of the rope (17) and the lifting device is consistent with the distance from the bottom of the groove to the upper end of the groove; ③ Lift the transition pipe and place it in the trench so that the bottom plate (1) is located at the bottom of the trench; ④. Loosen the connection between the rope (17) and the lifting device, and remove the lifting device; ⑤. A translation device is respectively arranged above both ends of the transition pipe, wherein: the translation device is composed of a support frame (19), an I-shaped frame (21), a displacement base (23) and a push rod (28); the support frame (19) is arranged on the displacement base (23) through a vertical plate (22); there are two displacement bases (23), both of which are arranged in an L shape; a third handle (24) is respectively arranged on the outer side of the top of each displacement base (23); at least one roller (20) is arranged in the support frame (19); positioning blocks are arranged at both ends of the support frame (19); an I-shaped frame (21) is slidably connected to the support frame (19), and a roller (20) is arranged on the top of the I-shaped frame (21); a push rod (28) is arranged in the middle of the outer side of the I-shaped frame (21), and the other end of the push rod (28) passes through the push rod (28), and the push rod (28) is fixed by a tightening bolt (27); ⑥. Place the support frame (19) above the transition duct port, and vertically pass the other end of the rope (17) on the lifting lug (11) through the support frame (19) so that the upper end of the rope (17) is located in front of the corresponding roller (20); 7. Move the I-shaped frame (21) to a position behind the roller (20), pull the rope (17) so that the bottom plate (1) is located above the bottom of the groove, and pass the rope (17) around the roller (20) at the top of the I-shaped frame (21), and wrap the hook at the other end of the rope (17) around the third handle (24) and fix it to the third handle (24); ⑧. The staff holds the third handle (24) to move the transition pipe so that the upper end of the transition pipe is connected to the adjacent pipe opening. If the upper end of the transition pipe and the pipe opening in the upper groove are no longer on the same horizontal line, the rope (17) is pulled to align the two pipe openings so that the staff can connect the two pipe openings. ⑨, insert the positioning screw (9) into the through hole on the extension plate, screw a matching nut on the bottom of the positioning screw (9) before inserting, and when the positioning screw (9) is inserted into the soil in the groove, insert the positioning screw (9) into the soil by hammering, and the insertion depth is between 4cm and 5cm; ⑩. Screw a matching nut on the upper end of the positioning screw (9), and fix the positioning screw (9) through the nut; after the fixation is completed, the pipe mouth can be welded.

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