High-pressure bent pipe butt joint device

Abstract

The invention relates to the field of elbow butt joint devices, and discloses a high-pressure elbow butt joint device which comprises a first hinge ring, butt joint elbows, an executing mechanism and a parallel mechanism, the first hinge ring is used for installing the parallel mechanism, and the executing mechanism is installed at welding pipe openings of the two butt joint elbows and used for aligning the welding pipe openings of the two butt joint elbows to each other; and the executing mechanism is linked with the parallel mechanism, so that welding of the two butt-joint bent pipes is facilitated. Compared with the prior art, the first hinge ring is fixed to the outer portion of the butt-joint bent pipe, the executing mechanism rotates to the outer portion of the welded junction of the butt-joint bent pipe, the welded junctions of the two butt-joint bent pipes are aligned according to the parallel principle, meanwhile, the gap of the welded junctions can be adjusted, and welding is smoother.

Description

Technical Field

[0001] The invention relates to the field of elbow butt joint devices, in particular to a high-pressure elbow butt joint device. Background Art

[0002] High-pressure pipe is a kind of pipe that can withstand pressure. It is used to transport liquids. There are many types of pipes, including steel pipes, copper pipes, stainless steel pipes, and others. It can be used for underwater transportation. Underwater welding includes wet underwater welding, partial dry underwater welding and dry underwater welding, among which wet underwater welding is commonly used.

[0003] After massive searches, it was found that the prior art publication number is CN111958259A, which discloses an angle-adjustable pipe docking device and a bent pipe docking method, including a support frame and two docking frames, an adjusting frame is provided at the upper end of the support frame, a steering mechanism is provided on the adjusting frame, the two docking frames rotate with the steering mechanism, and form a corresponding angle on the adjusting frame; an arc-shaped groove is provided on the adjusting frame, and a mounting hole corresponding to the arc-shaped groove is provided on the docking frame, a locking bolt is inserted into the mounting hole, and the locking bolt is used to lock the docking frame on the adjusting frame.

[0004] Therefore, based on the above search and in combination with the existing docking method, the two docking pipes are simply fixed on the docking frame, the two docking pipes are adjusted, and then docked. When the pipes are higher or lower, they cannot be accurately docked, and the interfaces of the two pipes cannot be accurately moved to a parallel state through mechanical docking, and the welding gap cannot be adjusted, and pipes with arbitrary curvatures cannot be aligned. Based on the above problems, the present application provides a high-pressure elbow docking device. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a high-pressure elbow butt connection device, which has the advantages of being able to align elbows of any curvature and control the weld gap, reducing the welding difficulty and improving the welding quality, and solves a series of problems such as the inability to accurately move the interfaces of two pipes to a parallel state and the inability to adjust the welding gap.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-pressure elbow butt joint device, comprising a first hinge ring; Butt elbow; An actuator, the actuator is installed at the welding nozzles of the two butt elbows, and is used to align the welding nozzles of the two butt elbows with each other, and adjust the mutual spacing of the welding nozzles of the two butt elbows according to welding requirements, the actuator includes a second arc ring that rotates on the outside of the corresponding butt elbow, one side of the two second arc rings is fixedly connected with three measuring blocks, the three measuring blocks on one side of the same second arc ring are arranged in a circle, the insides of the six measuring blocks are all screwed with measuring rods through threads, the tops of the six measuring rods are rotatably connected with measuring plates, and one side of the two second arc rings is provided with an alignment mechanism; A parallel mechanism is fixedly connected to one side of the two first hinged rings, and the parallel mechanism is linked with the actuator to facilitate the welding of the two butt elbow welds.

[0007] Preferably, two first hinge rings are provided, and the two first hinge rings are installed at the bends of the two corresponding butt-jointed elbows. A second hinge ring is provided on one side of the two first hinge rings and is installed at the straight pipes of the two corresponding butt-jointed elbows. The first hinge ring and the two second hinge rings on the outside of each butt-jointed elbow form a group, and the first self-locking telescopic rod is fixedly connected to the opposite side of each group of the first hinge ring and the two second hinge rings.

[0008] Preferably, the parallel mechanism includes a rotating ring fixedly connected to one side of the two first hinged rings, the two rotating rings are slidably connected to a rotating block inside, the tops of the two rotating blocks are threaded with a first fixing nut, one end of the two rotating blocks is fixedly connected to a rotating frame, the outside of the two rotating frames is rotatably connected to a first telescopic sleeve, one end of the two first telescopic sleeves is rotatably connected to a first arc ring, the two first arc rings are hinged to the other end of the corresponding rotating block, the outside of the two first telescopic sleeves is threaded with a second fixing nut, and the two second arc rings are slidably connected to the outside of the corresponding two first arc rings.

[0009] Preferably, the alignment mechanism includes three first universal grooves each opened on one side of the two second arc-shaped rings, the three first universal grooves on the same side are arranged in a circle, the insides of the six first universal grooves are rotatably connected with first universal balls, every two corresponding first universal balls form a group, an adjustment threaded rod is provided inside each group of first universal balls, and adjustment nuts are threadedly screwed on both ends of each adjustment threaded rod.

[0010] Preferably, a universal fixing mechanism is provided on one side of the two second hinged rings, and the universal fixing mechanism includes a second telescopic sleeve. The two second hinged rings are connected to the first hinged ring on the outside of the corresponding docking elbow through the corresponding second telescopic sleeve. The outsides of the upper and lower rings of the two second hinged rings and the two first hinged rings are provided with arc-shaped sliding grooves, and the insides of the eight arc-shaped sliding grooves are slidably connected with arc-shaped sliders, and the tops of the eight arc-shaped sliders are fixedly connected with fixed threaded rods, and the outsides of the eight fixed threaded rods are threaded with third fixing nuts, and one side of the eight third fixing nuts is adapted to the outside of the corresponding first hinged ring.

[0011] Preferably, the interior of the eight arc-shaped sliders is provided with a second universal groove, the interior of the eight second universal grooves is rotatably connected with a second universal ball, every two corresponding second universal balls form a group, and both ends of each group of second universal balls are fixedly connected to the two ends of the second telescopic sleeve.

[0012] Preferably, the eight second universal balls are each provided with a moving block inside, the eight second universal balls are each provided with an abutment block inside, the eight abutment blocks are each abutted with the corresponding moving blocks, the eight second universal balls are each threadedly screwed with an abutment threaded rod inside, and one end of the eight abutment threaded rods is each abutted against one side of the corresponding abutment block.

[0013] Preferably, both ends of each group of second universal balls are provided with second self-locking telescopic rods, the output ends of the four second self-locking telescopic rods are fixedly connected to one end of the corresponding abutting threaded rods, the outsides of the four second self-locking telescopic rods are fixedly sleeved with drive rings, and the four drive rings are rotatably connected to the outsides of the corresponding second telescopic sleeves.

[0014] Compared with the prior art, the present invention provides a high-pressure elbow butt joint device, which has the following beneficial effects: The high-pressure elbow butt joint device is connected to the corresponding butt elbow through the set actuator and the second hinged ring, and is parallel to the corresponding butt elbow. The welding pipe openings of the two butt elbows are then aligned with each other by the alignment mechanism, and the gap between the two butt elbows is controlled by the measuring mechanism, so that the pipe openings at any angle can be aligned based on the pipe body, and the weld gap can be adjusted at the same time. The universal fixing mechanism can fix the elbow at any angle to facilitate welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of another viewing angle of the three-dimensional structure of the present invention; Figure 3 It is a partial exploded schematic diagram of the three-dimensional structure of the present invention; Figure 4 for Figure 3 A magnified schematic diagram of part A; Figure 5 for Figure 3 An enlarged schematic diagram of part B; Figure 6 for Figure 3 An enlarged schematic diagram of part C of FIG. Figure 7 It is a partial structural schematic diagram of the second telescopic sleeve of the present invention; Figure 8 It is a partial structural schematic diagram of the arc chute of the present invention; Fig. 9 is a schematic diagram of the internal structure of the second telescopic sleeve of the present invention; Fig.10 for Fig. 9 A magnified schematic diagram of part A; Fig.11 It is a partial exploded schematic diagram of the second universal ball of the present invention; Fig.12 for Fig. 9 An enlarged schematic diagram of part B.

[0016] In the figure: 1, second hinge ring; 2, first hinge ring; 3, second arc block; 4, first fixed block; 5, second fixed block; 6, fixed ring; 7, rotating ring; 8, rotating block; 9, rotating frame; 10, first telescopic sleeve; 11, first arc ring; 12, second fixing nut; 13, first fixing nut; 14, second arc ring; 15, measuring block; 16, measuring rod; 17, measuring plate; 18, first universal groove; 19, first universal ball; 20, adjusting threaded rod; 21, adjusting Nut; 22. first arc groove; 23. first arc block; 24. second telescopic sleeve; 25. arc slide groove; 26. arc slide block; 27. fixed threaded rod; 28. third fixed nut; 29. ​​second universal groove; 30. second universal ball; 31. moving block; 32. abutment block; 33. abutment threaded rod; 34. second self-locking telescopic rod; 35. drive ring; 36. drive ring groove; 37. drive ring block; 38. second arc groove; 39. docking elbow; 40. first self-locking telescopic rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a high-pressure elbow butt joint device.

[0019] Embodiment 1, as Figure 1 As shown, a high-pressure elbow butt joint device comprises A first hinge ring 2; The butt elbow 39 includes a straight pipe portion and a bent pipe portion, and is a rigid structure as a whole; like Figure 2-Figure 4 As shown, an actuator is installed at the welding nozzles of the two butt elbows 39, and is used to align the welding nozzles of the two butt elbows 39 with each other, and adjust the mutual spacing of the welding nozzles of the two butt elbows 39 according to welding requirements. The actuator includes a second arc ring 14 that rotates on the outside of the corresponding butt elbow 39, and one side of the two second arc rings 14 is provided with a measuring mechanism, and the measuring mechanism includes three measuring blocks 15 fixedly connected to one side of the corresponding second arc ring 14, and one side of the six measuring blocks 15 is provided with a measuring plate 17. Specifically, the three measuring blocks 15 on one side of the two second arc rings 14 are separated from each other, so that when the butt elbow 39 is fixed, the measuring blocks 15 on both sides will not touch each other, affecting the adjustment of the weld width. More specifically, the measuring plate 17 is arranged in a stepped manner, and the width of the weld can be adjusted by the set measuring plate 17. One side of the two second arc rings 14 is provided with an alignment mechanism for aligning the two second arc rings 14; like Figure 3 and Figure 5As shown, the parallel mechanism is fixedly connected to one side of the two first hinged rings 2, and the parallel mechanism is linked with the actuator to facilitate the welding of the welds of the two butt elbows 39. Specifically, one side of the six measuring plates 17 inside the actuator is fitted with the welds of the corresponding butt elbows 39. At this time, the two second arc rings 14 are parallel to the welds of the corresponding butt elbows 39, and then the first hinged ring 2 is fixed to the outside of the corresponding butt elbows 39. Since the welds of the two butt elbows 39 are in a parallel state, welding can be performed, and the two second arc rings 14 are parallel to the welds of the corresponding butt elbows 39, when the two second arc rings 14 are parallel to each other, the two pairs of The welds of the butt elbows 39 are parallel to each other. At this time, the two second arc rings 14 are aligned by an alignment mechanism so that the welds of the two butt elbows 39 are aligned with each other. At this time, the two butt elbows 39 can be welded. More specifically, since the two second arc rings 14 are parallel to each other and are rotatably connected to the outside of the corresponding first arc rings 11, when the welds of the two butt elbows 39 are welded through the openings of the two second arc rings 14, the two second arc rings 14 can be rotated so that the entire weld can be welded, so that the pipe mouths of the two butt elbows 39 can be aligned by using the pipe bodies of the two butt elbows 39 as a basis, which is convenient for alignment welding without external reference.

[0020] like Figure 1 As shown, two first hinge rings 2 are provided, and the two first hinge rings 2 are installed at the bends of the two corresponding butt elbows 39. A second hinge ring 1 is provided on one side of the two first hinge rings 2, and is installed at the straight pipes of the two corresponding butt elbows 39. Figure 6 As shown, one end of the upper half rings of the two first hinged rings 2 and the two second hinged rings 1 is provided with a first fixed block 4, and one end of the lower half rings of the two first hinged rings 2 and the two second hinged rings 1 is provided with a second fixed block 5, and the outsides of the four first fixed blocks 4 are rotatably connected with fixed rings 6, and the corresponding first fixed blocks 4, second fixed blocks 5 and fixed rings 6 are adapted to each other, so that the corresponding second fixed block 5 is connected to the inside of the first fixed block 4, and then the fixed ring 6 is rotated so that the opening direction of the fixed ring 6 avoids the movement trajectory of the first fixed block 4, so that the two second hinged rings 1 are fixed to the outside of the corresponding docking elbow 39.

[0021] like Figure 3As shown, the first articulated ring 2 and the two second articulated rings 1 on the outside of each docking elbow 39 form a group, and the first self-locking telescopic rod 40 is fixedly connected to the opposite side of each group of the first articulated ring 2 and the two second articulated rings 1. Specifically, since the first articulated ring 2 is in a bent position, the first articulated ring 2 will loosen and move when subjected to force. By fixing the two second articulated rings 1 at the corresponding straight pipes and further fixing the corresponding two first articulated rings 2 by the corresponding first self-locking telescopic rod 40, the two first articulated rings 2 will not move outside the corresponding docking elbow 39 when subjected to force.

[0022] like Figure 3 , Figure 5 and Figure 6 As shown, a parallel mechanism is provided on one side of the two first hinged rings 2, and the parallel mechanism includes a rotating ring 7 fixedly connected to one side of the two first hinged rings 2, and a rotating block 8 is slidably connected inside the two rotating rings 7. Specifically, a first arc groove 22 is opened on one side of the two rotating rings 7, and a first arc block 23 is fixedly connected to one side of the two rotating blocks 8. The two first arc blocks 23 are slidably connected inside the corresponding first arc groove 22. More specifically, the two rotating rings 7 are divided into an upper and lower part, and the upper and lower parts of the two rotating rings 7 are fixedly connected to one side of the upper and lower half rings of the corresponding first hinged ring 2, so that when the corresponding first hinged ring 2 is hinged open, the corresponding rotating ring 7 moves with it, which is convenient for installation and disassembly. More specifically, the rotating block 8 is semicircular. The arrangement enables the rotating block 8 to rotate inside the rotating ring 7, and when the rotating ring 7 moves following the corresponding first hinged ring 2, the rotating block 8 is rotated to one of the upper and lower parts of the rotating ring 7, so that the rotating ring 7 can move smoothly following the first hinged ring 2, and the rotating block 8 can rotate outside the corresponding docking elbow 39. The tops of the two rotating blocks 8 are both threaded with a first fixing nut 13, so that the rotating block 8 can be fixed inside the corresponding rotating ring 7 to prevent the rotating ring 7 from sliding inside the corresponding rotating block 8. One end of the two rotating blocks 8 is fixedly connected to a rotating frame 9, and the outside of the two rotating frames 9 is rotatably connected to a first telescopic sleeve 10, and one end of the two first telescopic sleeves 10 is rotatably connected to a first arc ring 11.

[0023] The two first arc rings 11 are hinged at the other end of the corresponding rotating block 8, and the outer parts of the two first telescopic sleeves 10 are threaded with second fixing nuts 12. Specifically, rotating the second fixing nuts 12 can fix the first telescopic sleeves 10, so that after the first arc ring 11 is rotated to a certain angle, the first arc ring 11 is indirectly fixed.

[0024] like Figure 3-Figure 5The two second arc rings 14 shown are both slidably connected to the outside of the corresponding two first arc rings 11. Specifically, the outside of the two first arc rings 11 is provided with a second arc groove 38, and the inside of the two second arc rings 14 is fixedly connected with a second arc block 3, and the two second arc blocks 3 are rotatably connected to the inside of the corresponding second arc groove 38. More specifically, the two second arc rings 14 are arranged in an arc shape, and the arc length of the two second arc rings 14 is greater than the arc length of the corresponding first arc ring 11, so that the two second arc rings 14 are arranged in an arc shape. The corresponding first arc ring 11 will not fall off when the outside is rotated, and because the two second arc rings 14 are both rotatably connected to the outside of the corresponding first arc ring 11, when the arc lengths of the two second arc rings 14 are greater than the arc lengths of the corresponding first arc ring 11, the opening distances of the two second arc rings 14 are still greater than the opening distances of the corresponding first arc rings 11, so that the two second arc rings 14 will not be unable to be sleeved on the outside of the pipe wall because the arc lengths of the two second arc rings 14 are greater than the arc lengths of the corresponding first arc rings 11.

[0025] like Figure 3 and Figure 5 As shown, the measuring mechanism also includes a measuring rod 16 threadedly screwed inside the six measuring blocks 15, and the six measuring plates 17 are rotatably connected to the bottom of the corresponding measuring rod 16. Specifically, the corresponding measuring plate 17 is driven to move by rotating the measuring rod 16, and the corresponding first hinged ring 2 is moved at the same time, so that one side of the measuring plate 17 contacts the weld, and the second arc ring 14 is tilted by the extension of the first telescopic sleeve 10. In the process of tilting, since one side of the first arc ring 11 is hinged at one end of the rotating block 8, in the process of moving the first hinged ring 2, the rotating block 8 rotates, driving the end hinged to the first arc ring 11 to move to the lowest point of the weld inclination, so that the second arc ring 14 is parallel to the weld. At this time, the first hinged ring 2 is fixed to the outside of the corresponding docking elbow 39, and then the second fixing nut 12 is rotated to fix the first telescopic sleeve 10, and the first fixing nut 13 is rotated to fix the rotating block 8. At this time, the second arc ring 14 is fixed in parallel with the weld, and the distance of the weld is adjusted.

[0026] like Figure 3 and Figure 4As shown, the alignment mechanism includes three first universal grooves 18 which are all opened on one side of the two second arc rings 14. The three first universal grooves 18 on the same side are all arranged in a circle. More specifically, two of the first universal grooves 18 on the same side are opened at the semicircular arc position of the corresponding second arc ring 14, so that even if the moving directions of the two second arc rings 14 are opposite, the two first universal grooves 18 can still dock with each other. The interiors of the six first universal grooves 18 are all rotatably connected with first universal balls 19. Every two corresponding first universal balls 19 form a group. An adjusting threaded rod 20 is arranged inside each group of first universal balls 19. Both ends of each adjusting threaded rod 20 are threadedly screwed with adjusting nuts 21. The six adjusting nuts 21 are all adapted to one side of the corresponding first universal ball 19. By screwing the adjusting nuts 21, the two docking elbows 39 can be gradually aligned with each other, which is convenient for later welding.

[0027] Embodiment 2, as Figure 7 and Figure 8 As shown, based on Example 1, a universal fixing mechanism is provided on one side of the two second hinged rings 1, and the universal fixing mechanism includes a second telescopic sleeve 24. The two second hinged rings 1 are connected to the first hinged ring 2 on the outside of the corresponding docking elbow 39 through the corresponding second telescopic sleeve 24. The outsides of the upper and lower rings of the two second hinged rings 1 and the two first hinged rings 2 are provided with arc-shaped sliding grooves 25, and the insides of the eight arc-shaped sliding grooves 25 are slidably connected with arc-shaped sliders 26, and the tops of the eight arc-shaped sliders 26 are fixedly connected with fixed threaded rods 27, and the outsides of the eight fixed threaded rods 27 are threaded with third fixing nuts 28, and one side of the eight third fixing nuts 28 is adapted to the outside of the corresponding first hinged ring 2, so that the two second hinged rings 1 can be fixed to the outside of the corresponding docking elbow 39 first, and then the positions of the two second telescopic sleeves 24 can be adjusted.

[0028] like Figure 8-Figure 11 As shown, the interior of the eight arc-shaped sliders 26 is provided with a second universal groove 29, and the interior of the eight second universal grooves 29 is rotatably connected with a second universal ball 30, and each two corresponding second universal balls 30 form a group, and both ends of each group of second universal balls 30 are fixedly connected to the two ends of the second telescopic sleeve 24, so that after the second hinge ring 1 is fixed, the first hinge ring 2 can be rotated to any angle and can be adapted to the docking elbow 39 of any curvature.

[0029] The eight second universal balls 30 are each provided with a moving block 31 inside, and the eight second universal balls 30 are each provided with an abutment block 32 inside, and the eight abutment blocks 32 are all abutted with the corresponding moving blocks 31. The eight second universal balls 30 are each threadedly connected with an abutment threaded rod 33 inside, and one end of the eight abutment threaded rods 33 is abutted against one side of the corresponding abutment block 32, so that the two second hinged rings 1 can be fixed at any desired angle.

[0030] like Fig. 9 and Fig.12 As shown, both ends of each group of second universal balls 30 are provided with second self-locking telescopic rods 34, and the second self-locking telescopic rods 34 are arranged inside the corresponding second telescopic sleeves 24. The output ends of the four second self-locking telescopic rods 34 are fixedly connected to one end of the corresponding abutting threaded rod 33. The outsides of the four second self-locking telescopic rods 34 are fixedly sleeved with driving rings 35, and the four driving rings 35 are rotatably connected to the outsides of the corresponding second telescopic sleeves 24. Specifically, both sides of the four second telescopic sleeves 24 are provided with driving ring grooves 36, and both sides of the four driving rings 35 are fixedly connected with driving ring blocks 37. The eight driving ring blocks 37 are rotatably connected to the insides of the corresponding driving ring grooves 36. By rotating the driving ring 35, the second self-locking telescopic rod 34 is rotated to drive the abutting threaded rod 33 to rotate inside the corresponding second universal ball 30, and drive the corresponding abutting block 32 to move inside the corresponding second universal ball 30, so that one side of the corresponding moving block 31 abuts against the inner wall of the corresponding second universal groove 29, thereby achieving rapid fixation.

[0031] Working principle of the present invention: when it is necessary to dock two docking elbows 39, firstly, the two second hinge rings 1 are sleeved on the straight pipes of the two corresponding docking elbows 39, and the fixing ring 6 is rotated to fix the two second hinge rings 1 on the outside of the corresponding docking elbows 39. At this time, according to the bending positions of the two docking elbows 39, the four arc-shaped sliders 26 are slid so that the four arc-shaped sliders 26 slide inside the corresponding arc-shaped slide grooves 25, and the four arc-shaped sliders 26 are slid to both sides of the bending parts of the corresponding docking elbows 39 to avoid the two first self-locking telescopic rods 40 from touching the bending parts of the corresponding docking elbows 39. At this time, the third fixing nut 28 on the outside of the corresponding fixing threaded rod 27 is rotated so that the four arc-shaped sliders 26 are After fixing, the two first hinged rings 2 are sleeved on the outside of the corresponding butt elbow 39, and the two first hinged rings 2 are made into circular rings through the fixing ring 6, and at the same time, they are moved close to one side of the corresponding straight pipe, so that the second telescopic sleeve 24 and the second self-locking telescopic rod 34 are stretched or compressed, and at the same time, the second universal ball 30 rotates inside the corresponding second universal groove 29. At this time, one side of the partial measuring plate 17 is in contact with the weld of the corresponding butt elbow 39. At this time, the movement continues, and the first telescopic sleeve 10 is stretched. During the stretching process of the first telescopic sleeve 10, since the rotating block 8 rotates inside the rotating ring 7, and one end of the first arc ring 11 is hinged to the rotating block 8, the first arc ring 11 and the end hinged to the rotating block 8 are free. The first hinge ring 2 is stretched by the method, and the first hinge ring 2 continues to move at this time. Under the action of the force, the rotating block 8 rotates inside the rotating ring 7, so that the end of the first arc ring 11 hinged with the rotating block 8 rotates to the lowest point of the corresponding welding port. When the six measuring plates 17 are in contact with the welding ports of the corresponding butt elbows 39, the two second arc rings 14 are parallel to the welding ports of the corresponding butt elbows 39. At this time, the four driving rings 35 can be turned to rotate the corresponding abutting threaded rods 33, driving the corresponding abutting blocks 32 to move. The movement of the abutting blocks 32 drives the corresponding moving blocks 31 to move. The moving blocks 31 move and are stuck in the corresponding second universal grooves 29 to fix the corresponding second universal balls 30, thereby indirectly realizing the two first hinge rings. 2, at this time, screw the two first fixing nuts 13 so that the two rotating blocks 8 are fixed inside the two rotating rings 7, and at the same time, screw the two first fixing nuts 13 to fix the angles of the two first arc rings 11. At this time, the six measuring rods 16 can be screwed to move the six measuring plates 17 at the corresponding welding ports of the butt elbows 39 to adjust the gap of the welding ports. After the adjustment is completed, the three adjusting threaded rods 20 are inserted into the corresponding first universal balls 19, and the knobs on both sides are adjusted. The nuts 21 are adjusted to gradually align the welding ports of the two second universal grooves 29. When the welding ports of the two butt elbows 39 touch one side of the opposite measuring plate 17, it means that the welding ports of the two butt elbows 39 are in an aligned state, and the gap meets the welding requirements.At this time, welding can be performed through the open side of the two second arc rings 14, and during welding, the two second arc rings 14 can rotate outside the corresponding first arc rings 11, so as not to affect the continuity of welding and improve the welding quality.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-pressure elbow butt joint device, characterized in that: include A first hinge ring (2); Butt elbow (39); An actuator, the actuator being installed at the welding pipe openings of the two butt elbows (39) and being used for aligning the welding pipe openings of the two butt elbows (39) with each other and adjusting the mutual spacing of the welding pipe openings of the two butt elbows (39) according to welding requirements, the actuator comprising a second arc ring (14) rotating on the outside of the corresponding butt elbow (39), three measuring blocks (15) being fixedly connected to one side of each of the two second arc rings (14), the three measuring blocks (15) on one side of the same second arc ring (14) being arranged in a circular pattern, measuring rods (16) being screwed to the inside of each of the six measuring blocks (15) through threads, measuring plates (17) being rotatably connected to the tops of the six measuring rods (16), and an alignment mechanism being provided on one side of each of the two second arc rings (14); A parallel mechanism is fixedly connected to one side of the two first hinged rings (2), and the parallel mechanism is linked with the actuator to facilitate the welding of the welds of the two butt elbows (39).

2. A high-pressure elbow butt joint device according to claim 1, characterized in that: Two first hinged rings (2) are provided, and the two first hinged rings (2) are both installed at the bends of the two corresponding butt-jointed bends (39). A second hinged ring (1) is provided on one side of the two first hinged rings (2), and is both installed at the straight pipes of the two corresponding butt-jointed bends (39). The first hinged ring (2) and the two second hinged rings (1) outside each butt-jointed bend (39) form a group, and the first self-locking telescopic rod (40) is fixedly connected to the opposite side of each group of the first hinged ring (2) and the two second hinged rings (1).

3. A high-pressure elbow butt joint device according to claim 1, characterized in that: The parallel mechanism comprises a rotating ring (7) fixedly connected to one side of two first hinged rings (2), the interior of the two rotating rings (7) are slidably connected with a rotating block (8), the tops of the two rotating blocks (8) are threadedly screwed with a first fixing nut (13), one end of the two rotating blocks (8) are fixedly connected with a rotating frame (9), the outsides of the two rotating frames (9) are rotatably connected with a first telescopic sleeve (10), one end of the two first telescopic sleeves (10) are rotatably connected with a first arc ring (11), the two first arc rings (11) are hinged to the other end of the corresponding rotating block (8), the outsides of the two first telescopic sleeves (10) are threadedly screwed with a second fixing nut (12), and the two second arc rings (14) are slidably connected to the outsides of the two corresponding first arc rings (11).

4. A high-pressure elbow butt joint device according to claim 1, characterized in that: The alignment mechanism comprises three first universal grooves (18) each provided on one side of the two second arc-shaped rings (14); the three first universal grooves (18) on the same side are arranged in a circumferential manner; first universal balls (19) are rotatably connected inside the six first universal grooves (18); every two corresponding first universal balls (19) form a group; an adjusting threaded rod (20) is provided inside each group of first universal balls (19); and adjusting nuts (21) are threadedly screwed on both ends of each adjusting threaded rod (20).

5. A high-pressure elbow butt joint device according to claim 1, characterized in that: One side of the two second hinged rings (1) is provided with a universal fixing mechanism, the universal fixing mechanism comprising a second telescopic sleeve (24), the two second hinged rings (1) are connected to the first hinged ring (2) on the outside of the corresponding docking elbow (39) through the corresponding second telescopic sleeve (24), the outer sides of the upper and lower rings of the two second hinged rings (1) and the two first hinged rings (2) are provided with arc-shaped sliding grooves (25), the interiors of the eight arc-shaped sliding grooves (25) are slidably connected with arc-shaped sliders (26), the tops of the eight arc-shaped sliders (26) are fixedly connected with fixed threaded rods (27), the outer sides of the eight fixed threaded rods (27) are threadedly screwed with third fixing nuts (28), and one side of the eight third fixing nuts (28) is adapted to the outer sides of the corresponding first hinged rings (2).

6. A high-pressure elbow butt joint device according to claim 5, characterized in that: The eight arc-shaped slide blocks (26) are each provided with a second universal groove (29), and the eight second universal grooves (29) are each rotatably connected with a second universal ball (30). Every two corresponding second universal balls (30) form a group, and both ends of each group of second universal balls (30) are fixedly connected to both ends of the second telescopic sleeve (24).

7. A high-pressure elbow butt joint device according to claim 6, characterized in that: Each of the eight second universal balls (30) is provided with a moving block (31) inside, each of the eight second universal balls (30) is provided with an abutment block (32) inside, each of the eight abutment blocks (32) abuts against a corresponding moving block (31), each of the eight second universal balls (30) is threadedly connected with an abutment threaded rod (33) inside, and one end of each of the eight abutment threaded rods (33) abuts against one side of a corresponding abutment block (32).

8. A high-pressure elbow butt joint device according to claim 7, characterized in that: Both ends of each set of second universal balls (30) are provided with second self-locking telescopic rods (34); the output ends of the four second self-locking telescopic rods (34) are fixedly connected to one end of the corresponding abutting threaded rod (33); the outsides of the four second self-locking telescopic rods (34) are fixedly sleeved with drive rings (35); and the four drive rings (35) are rotatably connected to the outsides of the corresponding second telescopic sleeves (24).

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