Welding supporting tool for pipeline prefabrication

Abstract

The utility model discloses a pipeline prefabrication welding support tool, which comprises a manual hydraulic cylinder, support leg sleeves, adjustable support legs and a replaceable support seat, the manual hydraulic cylinder comprises a hydraulic support rod, a cylinder barrel and a manual pump, the bottom end of the cylinder barrel is welded with a plurality of support leg sleeves, and the support leg sleeves are connected with the manual pump. An adjustable supporting leg is connected in each supporting leg sleeve in a sleeved mode, a hydraulic supporting rod capable of doing telescopic motion is arranged in the cylinder barrel in a sleeved mode, and the top end of the hydraulic supporting rod is connected with the replaceable supporting base through a connecting piece. According to various types of prefabricated and welded pipes with different specifications, sizes and weights in the prefabricated pipeline, a convenient and rapid adaptive adjusting mode is provided, the pipeline height adjusting device has the advantages of keeping balance and stability, height adjustment can be carried out in real time, the workload of workers is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a welding support tool, in particular to a welding support tool for pipeline prefabrication. Background Art

[0002] At land construction sites and offshore platform sites, there are often various pipeline prefabrication and welding jobs. Some prefabrication and welding work can be done automatically by machines in the factory, but due to conditions such as the site and installation environment, only semi-prefabrication work can be done first, and then the remaining prefabrication and welding work can be put into the construction site and carried out manually according to the requirements of the drawings.

[0003] The pipes in the prefabricated pipeline are prefabricated and welded at the construction site. Due to the different requirements of different materials, thicknesses, pressure levels, etc. for different pipes, their welding processes and welding conditions are different. One situation is to prefabricate and weld on the ground; the other situation is to weld the prefabricated pipeline with the original / installed pipeline, and the locations involved may be at different heights on the ground or in the air. When prefabrication welding is performed on the ground, in order to ensure that the welders are in a more reasonable working physical state and obtain better welding results, one is to raise the pipe to the waist height during welding, and the other is to ensure that the two sections of pipes welded together are correctly matched, and the center lines are on the same straight line, and other requirements of the welding process must be met. In actual work, welders need to constantly adjust the height, size, levelness, etc. of the support according to the size of the pipe, which consumes considerable energy and time.

[0004] Therefore, the pipeline prefabrication welding support tool of the utility model is developed according to various requirements when performing pipeline prefabrication welding on the ground. It successfully solves the problem of the adjustability of the support tools required for the prefabrication and welding of pipes of different specifications, sizes and weights, ensuring that welders can quickly obtain the appropriate support requirements by adjusting the support tools, thereby greatly improving work efficiency. Utility Model Content

[0005] The purpose of the utility model is to propose a pipeline prefabrication welding support tool, which can provide a convenient and fast adaptation adjustment method according to various types of prefabricated and welded pipes of different specifications, sizes and weights in the prefabricated pipeline, has the advantages of maintaining balance and stability, and can perform height adjustments in real time, etc., and reduces the workload of workers and improves work efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A support tool for pipeline prefabrication welding, comprising a manual hydraulic cylinder, a support leg sleeve, an adjustable support leg and a replaceable support seat, the manual hydraulic cylinder comprising a hydraulic support rod, a cylinder barrel and a manual pump, a plurality of support leg sleeves are welded to the bottom end of the cylinder barrel, an adjustable support leg is sleeved in each support leg sleeve, a hydraulic support rod capable of telescopic movement is sleeved in the cylinder barrel, and the top end of the hydraulic support rod is connected to the replaceable support seat via a connecting piece.

[0008] Furthermore, the replaceable support seat is triangular or groove-shaped, and an adjustable base is symmetrically arranged on the inner side of the replaceable support seat.

[0009] Furthermore, the connecting piece is threadedly connected to the external thread of the hydraulic support rod via an internal thread, and the connecting piece is fixedly connected to the replaceable support seat via a screw.

[0010] Furthermore, three support leg sleeves are provided, all of which extend obliquely downward from the bottom side of the cylinder, that is, the support leg sleeves are evenly distributed on the bottom of the cylinder and inclined outward, and a pad is fixed at the bottom of the adjustable support leg.

[0011] Furthermore, the upper part of the adjustable supporting leg has an external thread, and the adjustable supporting leg is connected to the internal thread of the lower part of the supporting leg sleeve through the external thread. The adjustable supporting leg is also provided with a positioning nut through the external thread. By rotating the positioning nut, the positioning nut can be tightened and abutted against the lower side of the supporting leg sleeve.

[0012] Furthermore, one side of the cylinder is connected to a manual pump.

[0013] Furthermore, the middle rod section of the hydraulic support rod is provided with a smooth rod section, and the upper and lower rod sections are both provided with externally threaded rod sections. The hydraulic support rod is also provided with a locking nut, and the locking nut can be adjusted on the externally threaded rod section to unlock or lock.

[0014] Furthermore, the cylinder is provided with a level.

[0015] Furthermore, the hydraulic cylinder is provided with an open storage box.

[0016] Furthermore, a tray is provided below the bottom of the cylinder and between the three supporting leg sleeves.

[0017] The advantages of the utility model are:

[0018] The utility model can perform balance adjustment according to various uneven ground surfaces by arranging adjustable supporting legs in supporting leg sleeves, thereby ensuring smooth prefabrication and welding of pipelines.

[0019] The utility model has a hydraulic support rod capable of telescopic movement sleeved in the cylinder, and the hydraulic support rod can be adjusted in height according to the use requirements. During adjustment, hydraulic or manual adjustment methods can be selected according to whether it is load-bearing or not, which has the advantages of saving labor, time and convenience.

[0020] The utility model arranges the replaceable support seat into a triangular or groove shape, and symmetrically arranges adjustable bases on the inner side of the replaceable support seat. The mutually symmetrical adjustable bases can adjust the distance between themselves to adapt to the specifications of various types of pipelines or pipes to be prefabricated, thereby facilitating the support welding operation of the pipelines and pipes to be prefabricated.

[0021] The utility model has the advantages of simple structure, small volume, convenient operation and strong versatility, and can conveniently carry out various pipeline prefabrication welding operations, thereby improving work efficiency and greatly reducing workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view structural schematic diagram of the pipeline prefabrication welding support tool of the utility model;

[0023] Figure 2 It is a side view schematic diagram of a groove-shaped replaceable support seat of the pipeline prefabrication welding support tool of the utility model;

[0024] Figure 3 It is a side view schematic diagram of a triangular replaceable support seat of the pipeline prefabrication welding support tool of the utility model;

[0025] Figure 4 The utility model is a schematic diagram of the combined structure of a smooth rod section and an externally threaded rod section of a hydraulic support rod of a pipeline prefabricated welding support tool.

[0026] In the figure: 1 hydraulic support rod, 2 locking nut, 3 cylinder, 4 support leg sleeve, 5 tray, 6 positioning nut, 7 adjustable support leg, 8 needle valve, 9 manual pump, 10 storage box, 11 level, 12 replaceable support seat, 13 adjustable base, 14 connecting piece, 15 pad, 16 smooth rod segment, 17 external threaded rod segment. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a support tool for pipeline prefabrication welding includes a manual hydraulic cylinder, a support leg sleeve 4, an adjustable support leg 7 and a replaceable support seat 12, the manual hydraulic cylinder includes a hydraulic support rod 1, a cylinder barrel 3 and a manual pump 9, the bottom end of the cylinder barrel 3 is evenly welded with a plurality of support leg sleeves 4, each support leg sleeve 4 is sleeved with an adjustable support leg 7, the adjustable support leg 7 can be extended from the bottom end of the support leg sleeve 4 to contact the ground, the adjustable support leg 7 is supported by contacting and supporting the ground, so that the cylinder barrel 3 is upright and perpendicular to the ground, the cylinder barrel 3 is sleeved with a hydraulic support rod 1 capable of telescopic movement, the hydraulic support rod 1 can raise or lower the height of the prefabricated pipeline through the telescopic action in the hydraulic cylinder 3, so as to facilitate the welding operation of the prefabricated pipeline, the top end of the hydraulic support rod 1 is connected to the replaceable support seat 12 through a connecting piece 14, and the replaceable support seat 12 is used to carry and clamp the prefabricated pipeline itself.

[0030] The replaceable support seat 12 is in a triangular or groove shape, and the replaceable support seat 12 is opened toward the top side. An adjustable base 13 is symmetrically arranged on the inner side of the replaceable support seat 12. The adjustable base 13 is adjustably connected to the replaceable support seat 12 through the cooperation of a screw and a nut. The mutually symmetrical adjustable bases 13 can adjust the distance between themselves to make them consistent with the specifications of the pipeline or pipe to be prefabricated, and clamp and fix them from both sides of the pipeline or pipe to be prefabricated to avoid loosening during work, so as to facilitate welding operations.

[0031] The connecting member 14 is threadedly connected to the external thread of the hydraulic support rod 1 via an internal thread, and the connecting member 14 is fixedly connected to the replaceable support seat 12 via a screw.

[0032] The supporting leg sleeves 4 are provided with three strips, all of which extend obliquely downward from the bottom side of the cylinder 3, that is, the supporting leg sleeves 4 are evenly distributed on the bottom of the cylinder 3 and are inclined outward. The supporting leg sleeves 4 are sleeve structures, which are used to sleeve the adjustable supporting legs 7 of the supporting column structure. A pad 15 is fixedly provided at the bottom of the adjustable supporting leg 7 to expand the contact surface with the ground, thereby expanding the force-bearing area.

[0033] The upper part of the adjustable support leg 7 is provided with an external thread, and the adjustable support leg 7 is connected to the internal thread of the lower part of the support leg sleeve 4 through the external thread. By rotating the adjustable support leg 7, the telescopic length of the adjustable support leg 7 relative to the support leg sleeve 4 can be adjusted, and then by utilizing the matching positioning nut 6 to cooperate with the external thread of the adjustable support leg 7, the positioning nut 6 is tightened and abutted against the lower side of the support leg sleeve 4 to increase the bearing force between the adjustable support leg 7 and the support leg sleeve 4, and to avoid the loosening and slipping of the adjustable support leg 7 and the support leg sleeve 4 due to excessive force. At the same time, the relative telescopic adjustment of the adjustable support leg 7 relative to the support leg sleeve 4 can be carried out to adapt to the uneven ground, thereby ensuring that the overall support tool remains perpendicular to the ground.

[0034] The outer side of the positioning nut 6 is provided with a handle, which is convenient for manual rotation and adjustment without the assistance of other tools, and has the characteristics of being simple and convenient to use.

[0035] The cylinder 3 is cylindrical, and a manual pump 9 is fixedly connected to one side of the cylinder 3. By shaking the manual pump 9 up and down, hydraulic pressure can be provided to the cylinder 3. The cylinder 3 is used in conjunction with the hydraulic support rod 1. The hydraulic support rod 1 is driven upward by hydraulic pressure to adjust the height. Since the hydraulic pressure is large enough, the height of the hydraulic support rod 1 can be adjusted under load. A needle valve 8 is provided at the outlet of the manual pump 9. When the height of the hydraulic support rod 1 is adjusted appropriately, the needle valve 8 is closed to prevent the hydraulic oil in the cylinder 3 from flowing back into the manual pump 9, so as to ensure the stability of the support rod 1 during the operation of supporting the prefabricated pipeline.

[0036] The middle rod section of the hydraulic support rod 1 is provided with a smooth rod section 16, and the upper and lower rod sections are both provided with externally threaded rod sections 17. The hydraulic support rod 1 is also provided with a locking nut 2, which can be adjusted on the externally threaded rod section 17 to be unlocked or locked. That is, during the lifting and lowering process of the hydraulic support rod 1, the unlocked locking nut 2 needs to be placed in the externally threaded rod section 17 of the upper rod section. When the hydraulic support rod 1 rises or falls into place as needed, that is, after the externally threaded rod section 17 of the lower rod section or the upper rod section of the hydraulic support rod 1 reaches the top end of the cylinder barrel 3, the internal thread of the locking nut 2 cooperates with the external thread of the externally threaded rod section 17 of the hydraulic support rod 1, and the locking nut 2 is rotated downward by hand to abut against the top end of the cylinder barrel 3 for locking, so as to increase the supporting force between the hydraulic support rod 1 and the cylinder barrel 3, and the locking nut 2 can pass freely through the smooth rod section 16.

[0037] The cylinder 3 is provided with a level gauge 11, which can visually check the overall level of the supporting tool.

[0038] The cylinder 3 is provided with an open storage box 10 for conveniently storing tools such as drawing tools, measuring tapes, and protractors.

[0039] A tray 5 is provided below the bottom of the cylinder 3 and between the three supporting leg sleeves 4, which can be used to temporarily store larger items such as rulers, triangles, drawings, etc., and is also convenient for taking and using.

[0040] The replaceable support seat 12 can be adapted to prefabricated pipelines and other materials of different specifications and sizes by adjusting the adjustable base 13 symmetrically arranged on the left and right sides. The entire replaceable support seat is connected to the connecting piece 14 by a screw, so that different types of replaceable support seats 12 can be replaced quickly and conveniently, that is, replaceable support seats 12 in a triangular or groove shape. The type of replaceable support seat can be added and modified at any time according to actual needs.

[0041] During operation, when the hydraulic support rod 1 is load-bearing (i.e., prefabricated pipelines or pipes have been placed on the hydraulic support rod 1 in advance), the needle valve 8 is opened first, and the hydraulic support rod 1 can be lifted by shaking the manual pump 9 up and down, which has the advantages of saving time and effort.

[0042] When there is no load (that is, no prefabricated pipeline or pipe is placed on the hydraulic support rod 1 in advance), the needle valve 8 is opened first, and the hydraulic support rod 1 can be lifted by turning it by hand, and the locking nut 2 can be directly rotated manually to make the locking nut 2 abut against the top of the cylinder 3, thereby raising the hydraulic support rod 1 to the required appropriate distance. The hydraulic support rod 1 is locked and secured relative to the cylinder 3 by the locking nut 2, and then the needle valve 8 is closed to prevent the hydraulic support rod 1 from falling back, thereby ensuring the safety of the welding operation. The locking nut 2 is provided with a built-in handle, which can be directly rotated manually without the assistance of other tools, and has the advantage of simple and convenient operation.

[0043] After the prefabrication or welding of the prefabricated pipeline is completed, the locking nut 2 is loosened and rotated back to the position of the external threaded rod section 17 of the upper rod section, the needle valve 8 is opened, and the hydraulic oil pressure is slowly released, so that the prefabricated pipeline is gradually returned to its original position along with the replaceable base, and then the prefabricated pipeline is removed.

[0044] The utility model is a support tool for pipeline prefabrication welding. By using 2 to 3 support tools for pipeline prefabrication welding at the same time, the welding between pipelines and pipes of different specifications and sizes and welding at different angles can be met. By adjusting the support tools for pipeline prefabrication welding to different heights, the use requirements of people of different heights can be met, ensuring a more comfortable position during welding.

[0045] The manufacturing materials used in the utility model are common materials in production, and the utility model has the characteristics of economy, safety and strong practicality.

Claims

1. A welding support tool for pipeline prefabrication, characterized in that: The invention comprises a manual hydraulic cylinder, a support leg sleeve (4), an adjustable support leg (7) and a replaceable support seat (12); the manual hydraulic cylinder comprises a hydraulic support rod (1), a cylinder barrel (3) and a manual pump (9); a plurality of support leg sleeves (4) are welded to the bottom end of the cylinder barrel (3); an adjustable support leg (7) is sleeved in each support leg sleeve (4); and the top end of the hydraulic support rod (1) is connected to the replaceable support seat (12) via a connecting piece (14).

2. A pipeline prefabrication welding support tool according to claim 1, characterized in that: The replaceable support seat (12) is triangular or groove-shaped, and an adjustable base (13) is symmetrically arranged on the inner side of the replaceable support seat (12).

3. The pipeline prefabrication welding support tool according to claim 1, characterized in that: The connecting piece (14) is threadedly connected to the hydraulic support rod (1), and the connecting piece (14) is fixedly connected to the replaceable support seat (12) by means of a screw rod.

4. The pipeline prefabrication welding support tool according to claim 1, characterized in that: The supporting leg sleeves (4) are provided in three pieces, evenly distributed at the bottom of the cylinder (3) and tilted outwards, and a pad (15) is fixedly provided at the bottom of the adjustable supporting leg (7).

5. The pipeline prefabrication welding support tool according to claim 1, characterized in that: The upper part of the adjustable support leg (7) is provided with an external thread, and the adjustable support leg (7) is connected to the internal thread of the lower part of the support leg sleeve (4) through the external thread. The adjustable support leg (7) is also provided with a positioning nut (6) through the external thread. By rotating the positioning nut (6), the positioning nut (6) can be tightened to abut against the lower side of the support leg sleeve (4).

6. The pipeline prefabrication welding support tool according to claim 1, characterized in that: The manual pump (9) is connected to one side of the cylinder (3).

7. The pipeline prefabrication welding support tool according to claim 1, characterized in that: The middle rod section of the hydraulic support rod (1) is provided with a smooth rod section (16), and the upper and lower rod sections are both provided with externally threaded rod sections (17). The hydraulic support rod (1) is also provided with a locking nut (2), and the locking nut (2) can be adjusted on the externally threaded rod section (17) to be unlocked or locked.

8. The pipeline prefabrication welding support tool according to claim 1, characterized in that: The cylinder barrel (3) is provided with a level gauge (11).

9. The pipeline prefabrication welding support tool according to claim 1, characterized in that: The cylinder barrel (3) is provided with an open storage box (10).

10. The pipeline prefabrication welding support tool according to claim 1, characterized in that: A tray (5) is provided below the bottom of the cylinder (3) and between the three supporting leg sleeves (4).

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