Alignment device suitable for butt welding of pipelines

Abstract

The utility model relates to the technical field of pipeline butt-joint, in particular to an alignment device suitable for pipeline butt-joint welding, which is provided with a limiting mechanism capable of adjusting lifting and semi-ring closing to be matched, screwed and jacked, and can assist in butt-joint of pipelines and improve practicability. Comprising a mounting base, a lifting sleeve, a lifting frame, semi-rings, fixing pieces, hinges, a limiting threaded sleeve, a limiting threaded rod, a limiting twisting disc, a limiting abutting pad, a pressing piece, a mounting stud and a mounting threaded sleeve, the middle of the top end of the mounting base is connected with the bottom end of the lifting sleeve, the inner side of the lifting sleeve is slidably connected with the outer side of the lifting frame, and the top end of the lifting frame is connected with the middle of the bottom end of one set of semi-rings; three limiting threaded sleeves are evenly connected to the inner ring sides of the two semi-rings, the inner wall of each limiting threaded sleeve is in threaded connection with the outer wall of a limiting threaded rod, the outer end of each limiting threaded rod is connected with the middle of the inner end of a limiting twisting disc, and the inner end of each limiting threaded rod is connected with the middle of the outer end of a limiting abutting pad.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline docking, in particular to an alignment device suitable for pipeline docking welding. Background Technique

[0002] Pipeline connection refers to connecting the prefabricated pipe segments into a complete system according to the requirements of the design drawing. During construction, different connection methods should be selected according to the material of the pipes used. Ordinary steel pipes have methods such as threaded connection, flange connection, welding connection, socket connection, and pipe bonding connection.

[0003] Among them, during the butt welding process, a corresponding alignment device needs to be set for positioning. There is an alignment device suitable for pipeline docking welding with the patent publication number CN219684475U. It can sleave the first bracket and the second bracket on the circumferential direction of the pipeline to be butt-welded through a locking device; threaded holes are provided on both the first bracket and the second bracket, and a threaded rod is fitted through each of the threaded holes. The bottom end of the threaded rod is detachably connected with a pressing plate structure. The pressing plate structure can simultaneously cover a part of the outer wall of the two pipelines to be butt-welded. By rotating the movable handle at the top end of the threaded rod, the pressing plate structure moves in and out on the first bracket and the second bracket, so that the pressing plate structure clamps the pipelines to be butt-welded to align the two pipelines; by replacing the pressing plate structure at the bottom end of the threaded rod, the first bracket, the second bracket and the threaded rod can be recycled and reused; in summary, compared with the prior art, the utility model is simple to operate, safe and reliable, can effectively save manpower and time, and reduce the maintenance cost.

[0004] However, this device lacks support, has a limited scope of application, and poor practicability. Content of the Utility Model

[0005] (1) Technical Problem to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides an alignment device suitable for pipeline docking welding, which is provided with a limit mechanism that can adjust the lifting and is semi-circularly closed and screwed and tightened to assist in docking the pipeline and improve practicability.

[0007] (2) Technical Solution

[0008] To achieve the above object, the present utility model provides the following technical solutions: An alignment device suitable for butt welding and burning of pipelines, comprising a mounting base, a lifting sleeve, a lifting frame, a semi-ring, a fixing piece, a hinge, a limiting threaded sleeve, a limiting threaded rod, a limiting screwing disc, a limiting cushion, a pressing piece, a mounting stud and a mounting nut. The middle part of the top end of the mounting base is connected to the bottom end of the lifting sleeve. The outer side of the lifting sleeve is slidably connected to the outer side of the lifting frame. A tightening mechanism is arranged on the upper part of the outer side of the lifting sleeve. The top end of the lifting frame is connected to the middle part of the bottom end of a group of semi-rings. The right sides of the two groups of semi-rings are movably connected by hinges. A group of fixing pieces are respectively connected to the left sides of the two groups of hinges. The bottom end of the bottom fixing piece is communicated with the top end of the mounting nut. The inner side of the mounting nut is externally screwed to the mounting stud. The top end of the mounting stud is connected to the middle part of the bottom end of the pressing piece. Three groups of limiting threaded sleeves are evenly connected to the inner circumferential sides of the two groups of semi-rings. The inner wall of each group of limiting threaded sleeves is externally screwed to the outer wall of a group of limiting threaded rods. The outer ends of each group of limiting threaded rods are respectively connected to the middle part of the inner end of a group of limiting screwing discs. The inner end of the limiting threaded rod is connected to the middle part of the outer end of the limiting cushion.

[0009] Preferably, it further comprises a screwing piece, and the middle side of the top end of the pressing piece is connected to the bottom end of the screwing piece.

[0010] Preferably, it further comprises a lock washer, and a lock washer is arranged on the outer side of the mounting stud at the top end of the upper fixing piece.

[0011] Preferably, it further comprises a handle piece, and the upper side of the front end of the lifting frame is connected to the inner side of the handle piece.

[0012] Preferably, the tightening mechanism comprises a tightening nut, a tightening screw rod and a tightening wrench. The upper middle side of the front end of the lifting sleeve is communicated with the inner end of the tightening nut. The inner wall of the tightening nut is externally screwed to the outer wall of the tightening screw rod. The front side of the tightening screw rod is connected to the middle part of the rear side of the tightening wrench.

[0013] Preferably, it further comprises a connecting reinforcement beam, and a group of connecting reinforcement beams are respectively connected to the middle parts of the front and rear sides of the mounting base and the lower middle sides of the front and rear ends of the lifting sleeve.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides an alignment device suitable for butt welding and burning of pipelines, and has the following beneficial effects:

[0016] Fixed at the corresponding position through the mounting base, and slidably constrained by the lifting frame inside the lifting sleeve, so that the semi-ring rises and falls accordingly. Then, after the pipeline is placed inside the lower semi-ring, it is fixed at a certain height through the tightening mechanism. The upper semi-ring is closed by the hinge constraint, and the two groups of fixing pieces are closed correspondingly. Then, the mounting stud is screwed into the mounting nut sleeve and tightened by the pressing piece, so that the two semi-rings are closed and fixed. After that, the three limit turning disks are respectively turned, so that the corresponding limit threaded rods rotate. The limit threaded rods are screwed and matched with the limit threaded sleeves, so that the limit pads move inward. The three limit pads act together on the pipeline for limiting, so as to form butt joint auxiliary welding. A limit mechanism with a semi-ring that can be adjusted in lifting and closing and screwed and tightened is provided, which can assist in the butt joint of the pipeline and improve the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the axonometric view of the structural schematic diagram of the present invention;

[0018] Figure 2 For the present invention Figure 1 front view;

[0019] Figure 3 For the present invention Figure 1 right view;

[0020] Figure 4 For the present invention Figure 1 top view.

[0021] Reference numerals in the drawings: 1, mounting base; 2, lifting sleeve; 3, lifting frame; 4, semi-ring; 5, fixing piece; 6, hinge; 7, limit threaded sleeve; 8, limit threaded rod; 9, limit turning disk; 10, limit pad; 11, pressing piece; 12, mounting stud; 13, mounting nut sleeve; 14, turning piece; 15, lock washer; 16, handle piece; 17, tightening nut sleeve; 18, tightening screw rod; 19, tightening wrench; 20, connecting and reinforcing beam. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment

[0024] Please refer to Figures 1-4, an alignment device suitable for butt welding of pipes, comprising a mounting base 1, a lifting sleeve 2, a lifting frame 3, a half-ring 4, a fixing piece 5, a hinge 6, a limit threaded sleeve 7, a limit threaded rod 8, a limit screwing disc 9, a limit cushion 10, a pressing piece 11, a mounting stud 12 and a mounting nut 13. The middle part of the top end of the mounting base 1 is connected to the bottom end of the lifting sleeve 2. The inner side of the lifting sleeve 2 is slidably connected to the outer side of the lifting frame 3. A tightening mechanism is arranged on the upper part of the outer side of the lifting sleeve 2. The top end of the lifting frame 3 is connected to the middle part of the bottom end of a group of half-rings 4. The right sides of the two groups of half-rings 4 are movably connected through a hinge 6. A group of fixing pieces 5 are respectively connected to the left sides of the two groups of hinges 6. The bottom end of the bottom fixing piece 5 is communicated with the top end of the mounting nut 13. The inner side of the mounting nut 13 is externally screwed to the mounting stud 12. The top end of the mounting stud 12 is connected to the middle part of the bottom end of the pressing piece 11. Three groups of limit threaded sleeves 7 are evenly connected to the inner circumferential sides of the two groups of half-rings 4. The inner wall of each group of limit threaded sleeves 7 is externally screwed to the outer wall of a group of limit threaded rods 8. The outer end of each group of limit threaded rods 8 is respectively connected to the middle part of the inner end of a group of limit screwing discs 9. The inner end of the limit threaded rod 8 is connected to the middle part of the outer end of the limit cushion 10. It is fixed at the corresponding position through the mounting base 1, and the lifting frame 3 is slidably constrained inside the lifting sleeve 2 to make the half-ring 4 lift correspondingly. Then, after the pipe is placed inside the lower half-ring 4, it is fixed in height through the tightening mechanism, the upper half-ring 4 is closed by the constraint of the hinge 6, the two groups of fixing pieces 5 are closed correspondingly, and then the mounting stud 12 is screwed into the mounting nut 13 and tightened by the pressing piece 11 to make the two groups of half-rings 4 closed and fixed. After that, the three groups of limit screwing discs 9 are respectively rotated to make the corresponding limit threaded rods 8 rotate. The limit threaded rods 8 are screwed with the limit threaded sleeves 7 to make the limit cushions 10 move inwards, and the three groups of limit cushions 10 act together on the pipe for limiting, so as to form butt welding assistance.

[0025] It further includes a screwing piece 14, and the middle side of the top end of the pressing piece 11 is connected to the bottom end of the screwing piece 14. By screwing the screwing piece 14, the pressing piece 11 connected to the mounting stud 12 can be rotated, improving convenience.

[0026] It further includes a lock washer 15, and the lock washer 15 is arranged on the outer side of the mounting stud 12 at the top end of the upper fixing piece 5. The lock washer 15 can outwardly support when the pressing piece 11 presses downwards, avoiding loosening and improving reliability.

[0027] It further includes a handle piece 16, and the upper front side of the lifting frame 3 is connected to the inner side of the handle piece 16. By holding the handle piece 16, the lifting frame 3 can be connected to move up and down, improving convenience.

[0028] The tightening mechanism includes a tightening sleeve 17, a tightening screw rod 18 and a tightening wrench 19. The upper middle side of the front end of the lifting sleeve 2 is communicated with the inner end of the tightening sleeve 17. The inner wall of the tightening sleeve 17 is screwed to the outer wall of the tightening screw rod 18. The front side of the tightening screw rod 18 is connected to the middle part of the rear side of the tightening wrench 19. By turning the tightening wrench 19, the tightening screw rod 18 can be rotated. The tightening screw rod 18 acts inwardly on the front side of the lifting frame 3 through the screw fit with the tightening sleeve 17 to improve the stability.

[0029] It further includes a connecting and reinforcing beam 20. A set of connecting and reinforcing beams 20 are respectively connected to the middle parts of the front and rear sides of the mounting seat 1 and the lower middle sides of the front and rear ends of the lifting sleeve 2. Through the connection of the connecting and reinforcing beam 20 to the mounting seat 1 and the lifting sleeve 2, the lifting sleeve 2 can be reinforced to avoid deflection and improve the stability.

[0030] In summary, when an alignment device applicable to pipe butt welding and burning is in use, the mounting seat 1 is fixed at the corresponding position. By holding the handle piece 16, the lifting frame 3 slides and is constrained inside the lifting sleeve 2, so that the half-ring 4 is lifted and lowered accordingly. Then, after the pipe is placed inside the lower half-ring 4, by turning the tightening wrench 19, the tightening screw rod 18 can be rotated. The tightening screw rod 18 acts inwardly on the front side of the lifting frame 3 through the screw fit with the tightening sleeve 17. The upper half-ring 4 is closed and constrained by the hinge 6, and the two fixing pieces 5 are closed and corresponding. Then, by turning the screwing piece 14, the connecting mounting stud 12 of the pressing piece 11 can be rotated, and the mounting stud 12 is screwed into the mounting sleeve 13 and tightened by the pressing piece 11. The anti-loosening washer 15 can outwardly support when the pressing piece 11 presses downward to avoid loosening, so that the two half-rings 4 are closed and fixed. Then, the three limiting screwing disks 9 are respectively turned to make the corresponding limiting threaded rods 8 rotate. The limiting threaded rods 8 act inwardly through the screw fit with the limiting threaded sleeves 7, and the three limiting pads 10 act together on the pipe for limiting, so as to form butt welding and burning assistance. In addition, through the connection of the connecting and reinforcing beam 20 to the mounting seat 1 and the lifting sleeve 2, the lifting sleeve 2 can be reinforced to avoid deflection and improve the stability.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An alignment device suitable for pipe butt welding, characterized in that: The utility model comprises a mounting seat (1), a lifting sleeve (2), a lifting frame (3), a half ring (4), a fixing plate (5), a hinge (6), a limiting threaded sleeve (7), a limiting threaded rod (8), a limiting screw disk (9), a limiting abutment pad (10), a pressing sheet (11), a mounting stud (12) and a mounting threaded sleeve (13). The middle part of the top of the mounting seat (1) is connected to the bottom end of the lifting sleeve (2), the inner side of the lifting sleeve (2) is slidably connected to the outer side of the lifting frame (3), a tightening mechanism is arranged on the upper part of the outer side of the lifting sleeve (2), the top of the lifting frame (3) is connected to the middle part of the bottom end of a group of half rings (4), the right sides of the two groups of half rings (4) are movably connected via hinges (6), and the two groups A group of fixing plates (5) are respectively connected to the left side of the hinge (6), the bottom end of the bottom fixing plate (5) is connected to the top end of the mounting screw sleeve (13), the inner side of the mounting screw sleeve (13) is screwed to the outside of the mounting stud (12), the top of the mounting stud (12) is connected to the middle of the bottom end of the pressing plate (11), and three groups of limiting thread sleeves (7) are evenly connected to the inner ring side of the two groups of semi-rings (4), the inner wall of each group of limiting thread sleeves (7) is screwed to the outer wall of a group of limiting thread rods (8), the outer end of each group of limiting thread rods (8) is respectively connected to the middle of the inner end of a group of limiting screw discs (9), and the inner end of the limiting thread rod (8) is connected to the middle of the outer end of the limiting abutment pad (10).

2. An alignment device suitable for pipe butt welding according to claim 1, characterized in that: It also comprises a twisting plate (14), wherein the middle side of the top end of the pressing plate (11) is connected to the bottom end of the twisting plate (14).

3. The alignment device for pipe butt welding according to claim 1, characterized in that: It also includes an anti-loosening washer (15), and an anti-loosening washer (15) is arranged on the outside of the mounting stud (12) at the top end of the fixing plate (5) on the upper side.

4. The alignment device for pipe butt welding according to claim 1, characterized in that: It also comprises a handle piece (16), and the upper side of the front end of the lifting frame (3) is connected to the inner side of the handle piece (16).

5. The alignment device for pipe butt welding according to claim 1, characterized in that: The tightening mechanism comprises a tightening screw sleeve (17), a tightening screw rod (18) and a tightening hand (19); the upper middle side of the front end of the lifting sleeve (2) is connected to the inner end of the tightening screw sleeve (17); the inner wall of the tightening screw sleeve (17) is screwed to the outer wall of the tightening screw rod (18); the front side of the tightening screw rod (18) is connected to the middle part of the rear side of the tightening hand (19).

6. The alignment device for pipe butt welding according to claim 1, characterized in that: It also includes connecting reinforcement beams (20), and a group of connecting reinforcement beams (20) are respectively connected to the middle of the front and rear sides of the mounting seat (1) and the middle and lower sides of the front and rear ends of the lifting sleeve (2).

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