Large and heavy pipe welding fixing device

Abstract

The utility model provides a large and heavy pipe welding fixing device which comprises a support, a fixing chain and an adjusting mechanism. The bracket is used for supporting two sections of pipelines and is provided with supporting parts at intervals; the fixed chain is sleeved on the pipeline; the adjusting mechanism comprises a connecting piece, a connecting rod and an anchor locking piece; the connecting piece is fixed on the fixed chain; the two connecting rods are staggered end to end in the length direction of the pipeline and connected through the locking and anchoring piece, the other ends of the two connecting rods are connected with the connecting piece, the locking and anchoring piece is provided with a first surface and a second surface which are opposite, and the two connecting rods are fixed through nuts. The device is ingenious in structure, unique in conception, stable in connection and easy to manufacture; butt-joint fixing of pipelines to be welded can be rapidly carried out, the butt-joint precision requirement is guaranteed, the butt-joint speed is increased, and the welding quality of the pipelines can be guaranteed. The labor intensity of workers is effectively reduced, the pipeline butt joint device can be suitable for butt joint of pipelines with different pipe diameters, turnover use is achieved, and cost is further saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipelines, in particular to a welding and fixing device for large and heavy pipes. Background Art

[0002] With the rapid development of cities, pipeline construction is increasing. In urban pipeline construction methods, pipe welding is an important construction process, especially for pipes with large diameters and thick walls, which are difficult to construct and have high safety risks. Large-diameter pipes refer to pipes with a nominal diameter greater than 200. During the construction process, due to the narrow construction surface, the weight of the pipes, and the difficulty in moving the pipes, manual assistance is required for fixing the pipes when they are connected, which has high requirements on workers' operation and makes it difficult to ensure the connection accuracy, affecting the quality of pipeline welding. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a large and heavy pipe welding and fixing device, which can complete the pipe docking without manual assistance, has accurate docking, is easy to operate, and is suitable for welding and fixing pipes of different diameters.

[0004] The technical solution adopted by the utility model is: a large and heavy pipe welding and fixing device, comprising:

[0005] A bracket, used to support two sections of pipes, wherein the bracket is provided with supporting parts at intervals;

[0006] A fixed chain is sleeved on the pipe; the fixed chain is not in contact with the bracket;

[0007] The adjusting mechanism is respectively connected with the fixed chains sleeved on the two sections of the pipeline. The adjusting mechanism can be extended or shortened along the length direction of the pipeline to pull the fixed chain to move.

[0008] Further, the adjustment mechanism includes a connecting member, a connecting rod and a locking anchor;

[0009] The connecting member is fixed to the fixed chain;

[0010] The two connecting rods are staggered end to end along the length direction of the pipeline and connected through the locking anchor, and the other ends of the two connecting rods are respectively connected to the connecting pieces.

[0011] Furthermore, the locking anchor has a first surface and a second surface that are opposite to each other, and the two connecting rods are fixed to the locking anchor by nuts, and the nuts are respectively attached to the first surface and the second surface.

[0012] Furthermore, the supporting portion includes two support rods parallel to the length direction of the pipeline.

[0013] Furthermore, the fixing chain is provided with a lock buckle to lock the pipeline.

[0014] Furthermore, one end of the limiting chain is fixed to the fixing chain, and the other end is connected to the bracket.

[0015] Furthermore, the limiting chain has an extended length so that the fixing chain can move relative to the bracket.

[0016] Furthermore, there are multiple fixed chains sleeved on the same section of the pipeline; and the connecting rods are respectively connected to the multiple connecting pieces.

[0017] Furthermore, there are multiple adjusting mechanisms, which are evenly arranged along the circumference of the pipeline.

[0018] The large and heavy pipe welding and fixing device provided by the present application has the following beneficial effects:

[0019] (1) Ingenious structure, unique design, stable connection, and easy to manufacture;

[0020] (2) The pipes to be welded can be quickly butted and fixed, which not only ensures the butt-jointing accuracy requirements, but also speeds up the butt-jointing speed, which is beneficial to ensuring the welding quality of the pipes;

[0021] (3) It effectively reduces the labor intensity of workers and saves manpower to the greatest extent; it can be used for connecting pipes of different diameters, has good applicability, and realizes turnover use, further saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view of a specific embodiment of the utility model;

[0023] Figure 2 It is a front view of a specific embodiment of the utility model;

[0024] Figure 3 It is a top view of a specific embodiment of the utility model.

[0025] In the figure:

[0026] 1. Bracket 2. Fixed chain 201. Lock

[0027] 3. Adjustment mechanism 301, connecting piece 302, connecting rod

[0028] 303, lock anchor 304, nut 4, limit chain

[0029] 5. Pipeline DETAILED DESCRIPTION

[0030] The embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0031] like Figure 1-Figure 3 As shown, in a specific embodiment of the present application, the present application proposes a large and heavy pipe welding and fixing device, including: a bracket 1, a fixing chain 2 and an adjustment mechanism 3, and each part is described in detail below.

[0032] like Figure 1-Figure 3 As shown, in this embodiment, the present application provides a large and heavy pipe welding and fixing device, comprising:

[0033] The bracket 1 is used to support two sections of pipes 5, which are intended to be connected by welding and have an interface for welding; the pipes 5 are placed on the supporting part of the bracket 1, and the supporting parts of the bracket 1 are arranged at intervals, and the supporting parts protrude from other parts of the bracket 1, so that the pipes 5 are partially suspended. The purpose of this design is to be able to support the pipe 5 while reserving enough space, so that welding equipment is used to weld the lower end of the interface when the pipes 5 are fixed to the bracket 1, and at the same time, it is convenient for the fixing chain 2 to pass through the gap between the two supporting parts to fix the pipes to the supporting parts;

[0034] In this embodiment, the supporting portion includes two support rods parallel to the length direction of the pipe 5, which can be used to support pipes 5 with circular cross-sections and different diameters. The two support rods support the pipe 5 from the circumference of the pipe 5 and provide symmetrical supporting force, so that the pipe 5 is easier to reach a force balance state, thereby enhancing the stability of the bracket 1; at the same time, based on the diameter of the pipe 5 to be welded, the distance between the support rods is determined, and the bracket 1 can be applied as long as the diameter of the pipe 5 is greater than the distance between the support rods, thereby expanding the application scope of the bracket 1; on the other hand, this design enables the two sections of the pipe 5 to be in a preliminary alignment state under the action of their own gravity when installed on the bracket, which facilitates the subsequent further adjustment of the pipe 5 for precise alignment, saving adjustment procedures and time, and improving docking efficiency; in addition, this design enables the pipe 5 to have a smaller friction force with the bracket 1, so that the pipe 5 is easy to move along the support rods.

[0035] The fixed chain 2 is sleeved on the pipe 5; the fixed chain 2 does not contact the bracket 1; specifically, the fixed chain 2 is wrapped around the outer wall of the pipe 5, and its position matches the bracket 1. It can be sleeved on the suspended part of the pipe 5 on both sides of the bracket 1, or it can pass through the gap between the supporting parts of the bracket 1 and be sleeved on the pipe 5.

[0036] The adjusting mechanism 3 is respectively connected to the fixed chain 2 mounted on the two sections of the pipe 5. The adjusting mechanism 3 can be extended or shortened along the length direction of the pipe 5 to pull the fixed chain 2 to move, thereby driving the pipes 5 to move toward each other to achieve the docking of the pipes 5; the movement direction of the pipe 5 always remains consistent with the shortening direction of the adjusting mechanism 3, and no deviation or rotation will occur, so that the two sections of the pipe 5 can be accurately docked without manual assistance.

[0037] In this embodiment, when this large and heavy pipe welding and fixing device is used, the specific process is: place the two sections of pipe 5 to be welded on the supporting part of the bracket 1, adjust the position of the pipe 5 so that the center lines of the two sections of pipe 5 coincide, install the fixing chain 2 to clamp the pipe 5, and connect the adjustment mechanism 3 to the fixing chains 2 of the two sections of pipe 5 respectively. In the initial installation state, there is a gap between the docking interfaces of the two pipes 5. By adjusting the adjustment mechanism 3 to shorten it, the fixing chain 2 is driven to move in the direction of the other section of pipe 5, thereby driving the pipes 5 to move toward each other, and completing the docking and fixing of the two sections of pipe 5.

[0038] In this embodiment, the adjusting mechanism 3 includes a connecting piece 301, a connecting rod 302 and a locking anchor 303; the connecting piece 301 is fixed to the fixed chain 2, and is used to connect the fixed chain 2 and the connecting rod 302; the connecting rod 302 is parallel to the length direction of the pipeline 5, and the two connecting rods 302 are staggered end to end and connected by the locking anchor 303; specifically, one end of the two connecting rods 302 is respectively connected to the locking anchor 303, and the end is provided with a thread and fixed to the locking anchor 303 by a nut 304; the other ends of the two connecting rods 302 are respectively connected to the connecting piece 301; by controlling the length of the staggered length of the two connecting rods 302, the length of the adjusting mechanism 3 can be controlled, and the longer the staggered length of the two connecting rods 302, the shorter the length of the adjusting mechanism 3.

[0039] In this embodiment, the locking anchor 303 is constructed in a flat plate shape, having a first surface and a second surface relative to each other, and the two connecting rods 302 are fixed to the locking anchor 303 by nuts 304, and the two nuts 304 are respectively attached to the first surface and the second surface; that is, the two nuts 304 clamp the locking anchor 303 from both sides of the locking anchor 303, respectively, and provide opposite forces to the locking anchor 303, so that the locking anchor 303 can be firmly fixed at a certain set position, so that the connecting rod 302 is more stably fixed to the locking anchor 303, and when the nuts 304 are rotated, the connecting rods 302 move toward each other, thereby increasing the length of the staggered ends thereof, thereby driving the fixed chain 2 to move toward the direction of the other pipe 5, so that the two pipes 5 are close to each other, until the interfaces of the pipes 5 are in contact, and the docking of the pipes 5 is completed. During specific operation, one of the nuts 304 can be rotated to move the connecting rod 302 fixed by the nut 304 toward the other section of the pipe 5, driving the pipe 5 on this side to approach the other section of the pipe 5, and completing the docking of the pipes 5; the two nuts 304 can also be rotated synchronously to make the two sections of the pipe 5 move toward each other at the same time; or the nut 304 on one side can be rotated first, and then the nut 304 on the other side can be rotated to make the two sections of the pipe 5 move closer one after another.

[0040] Furthermore, in order to enable the fixing chain 2 to be used to fix pipes 5 of different diameters, a large margin is left in the length of the fixing chain 2. After it is wrapped around the pipe 5, the pipe 5 is locked by the lock 201 set on the fixing chain 2, so that this device has good applicability and the installation operation is more convenient.

[0041] Furthermore, the device further includes a limit chain 4, one end of which is fixed to the fixed chain 2, and the other end is connected to the bracket 1, to prevent the pipe 5 from being separated from the bracket 1 during movement and causing a safety accident. Specifically, the limit chain 4 has an extended length, and the setting of the extended length makes it difficult for the pipe 5 to deviate from the supporting part to one side and separate from the bracket 1, while meeting the movement requirement of the fixed chain 2 relative to the bracket 1, further improving the safety of the device.

[0042] In this embodiment, each section of pipe 5 is fixed to the bracket 1 by a fixing chain 2;

[0043] In some other embodiments, the pipe 5 is long and heavy, and needs to be fixed by multiple fixed chains 2. The connectors 301 on the multiple fixed chains 2 of the same section of pipe 5 are aligned along the length direction of the pipe 5 and connected to the same connecting rod 302, so as to achieve a more stable movement of the pipe 5.

[0044] In this embodiment, the adjustment mechanism 3 is provided as one; after the components are connected, the connecting rod 302 is located above the pipeline 5, which is more convenient for workers to operate.

[0045] In some other embodiments, the adjusting mechanism 3 is provided in plurality, and the plurality of adjusting mechanisms 3 are evenly arranged along the circumference of the pipeline 5 , which can provide more pulling force for the movement of the pipeline 5 , making it easier for the pipeline 5 to overcome the friction between it and the bracket 1 and move.

[0046] In a specific embodiment, each section of the pipe 5 is fixed by a plurality of fixing chains 2, and a plurality of adjustment mechanisms 3 are provided between two sections of the pipe 5; that is, a plurality of fixing parts used to fix the same section of the pipe 5 are connected by a plurality of connecting rods 302 to form a whole, so that the pipe 5 is subjected to balanced forces in all directions and can move more smoothly.

[0047] In this embodiment, the bracket 1 is made of angle steel by welding, the fixing chain 2 is made of iron chain, and the locking anchor 303 is made of steel plate, which are all commonly used components in construction and are easy to process and manufacture.

[0048] The utility model also provides a method for using a large and heavy pipe welding and fixing device, wherein the large and heavy pipe welding and fixing device comprises the large and heavy pipe welding and fixing device in the above embodiment, and the method comprises the following steps:

[0049] Place two sections of pipe 5 to be welded on the bracket 1 so that the axes of the two sections of pipe 5 are aligned;

[0050] Sleeve the fixing chain 2 on the pipe 5 and lock it with a lock;

[0051] Install the limit chain 4, and connect its two ends to the fixed chain 2 and the bracket 1 respectively;

[0052] The connecting piece 301 is welded to the fixed chain 2, and the connecting pieces 301 located on the two sections of the pipe 5 are correspondingly arranged. The distance between the two connecting pieces 301 along the circumference of the pipe 5 should not be too large to ensure that the connecting rod 302 can be connected to the same locking anchor 303 after installation;

[0053] Weld the connecting rods 302 to the connecting piece 301 so that the two connecting rods 302 extend in a direction parallel to the length of the pipe 5, and the connecting rods 302 have a sufficient length so that the ends of the two connecting rods 302 close to each other are staggered end to end;

[0054] Connect the anchor 303 and the connecting rod 302, and install the nuts 304 on both sides to fix the anchor 303;

[0055] The nut 304 is rotated to move the connecting rods 302 toward each other until the interface portions of the two sections of the pipe 5 are in contact.

[0056] In a specific embodiment, the bracket 1 is made of L50mm×5mm angle steel, the overall length of the bracket 1 is 1650mm, the height is 500mm, the width of the lower part is 800mm, and the width of the supporting part is 300mm; the fixed chain 2 is made of a stainless steel chain with a diameter of 10mm and a total length of 2000mm, which can be used to fix the pipe 5 with a diameter of 100mm to 600mm; the limiting chain 4 is made of a stainless steel chain with a diameter of 5mm and a length of 500mm. When it is welded to the fixed chain 2, the connection part is located at the lower part of the pipe 5, so it has sufficient extension length; the connecting rod 302 is made of a round iron column with a diameter of 12mm, one end of which is provided with a thread; the locking anchor 303 is made of a stainless steel plate of 80mm×60mm×10mm, and a hole matching the diameter of the connecting rod 302 is opened.

[0057] The large and heavy pipe welding and fixing device provided by the present application has the following beneficial effects:

[0058] (1) Ingenious structure, unique design, stable connection, and easy to manufacture;

[0059] (2) The pipes to be welded can be quickly butted and fixed, which not only ensures the butt-jointing accuracy requirements, but also speeds up the butt-jointing speed, which is beneficial to ensuring the welding quality of the pipes;

[0060] (3) It effectively reduces the labor intensity of workers and saves manpower to the greatest extent; it can be used for connecting pipes of different diameters, has good applicability, and realizes turnover use, further saving costs.

[0061] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A large and heavy pipe welding and fixing device, characterized in that: include: A bracket, used to support two sections of pipes, wherein the bracket is provided with supporting parts at intervals; A fixed chain is sleeved on the pipe; the fixed chain is not in contact with the bracket; The adjusting mechanism is respectively connected with the fixed chains sleeved on the two sections of the pipeline. The adjusting mechanism can be extended or shortened along the length direction of the pipeline to pull the fixed chain to move.

2. The pipe welding and fixing device according to claim 1 is characterized in that: The adjustment mechanism includes a connecting member, a connecting rod and a locking anchor member; The connecting member is fixed to the fixed chain; The two connecting rods are staggered end to end along the length direction of the pipeline and connected through the locking anchor, and the other ends of the two connecting rods are respectively connected to the connecting pieces.

3. The pipe welding and fixing device according to claim 2 is characterized in that: The locking anchor has a first surface and a second surface that are opposite to each other. The two connecting rods are fixed to the locking anchor by nuts, and the nuts are respectively attached to the first surface and the second surface.

4. The pipe welding and fixing device according to claim 3 is characterized in that: The supporting part includes two supporting rods parallel to the length direction of the pipeline.

5. The pipe welding and fixing device according to claim 1 or 4, characterized in that: The fixing chain is provided with a lock buckle to lock the pipeline.

6. The pipe welding and fixing device according to claim 5, characterized in that: It also includes a limiting chain, one end of which is fixed to the fixing chain, and the other end is connected to the bracket.

7. The pipe welding and fixing device according to claim 6, characterized in that: The limiting chain has an extended length so that the fixing chain can move relative to the bracket.

8. The pipe welding and fixing device according to claim 4, characterized in that: There are multiple fixed chains sleeved on the same section of the pipeline; and the connecting rods are respectively connected to the multiple connecting pieces.

9. The pipe welding and fixing device according to claim 1, characterized in that: There are multiple adjusting mechanisms, which are evenly arranged along the circumference of the pipeline.

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