Hot prefabricated crimping joint for continuous fiber reinforced polyethylene composite pipe and method thereof

Abstract

The present invention discloses a continuous fiber reinforced polyethylene composite pipe hot prefabricated crimping joint and a method thereof, and relates to the technical field of crimping joints, including a positioning ring, a side connecting frame is installed on the outer wall of the positioning ring, and a shifting distance adjusting member connected to a movable link is arranged on the side connecting frame. The present invention sets a shifting distance adjusting member, rotates a bidirectional screw after limiting the position of the composite pipe and the joint, and causes two limit sliders on the bidirectional screw to move toward each other through the rotation of the bidirectional screw. As the limit slider moves, the oblique guide plate approaches the reversing gear, and the limit slider continues to move. At this time, the oblique guide plate will squeeze the measuring rod, so that the measuring rod moves upward relative to the positioning guide plate, and at the same time, one end of the composite pipe and the joint will partially overlap. At this time, the value of the scale line corresponding to the top of the positioning guide plate is observed to know the overlapping length of the composite pipe and one end of the joint, so as to accurately adjust the connection length of the composite pipe and the joint.

Description

Technical Field

[0001] The invention relates to the technical field of crimping joints, in particular to a hot prefabricated crimping joint for a continuous fiber reinforced polyethylene composite pipe and a method thereof. Background Art

[0002] With the rapid development of the oil industry, the connection between pipelines has become a key issue that manufacturers must first solve. If the pipelines are not connected well, leakage may occur at the joints at any time. In current technology, the installation of pipe joints is usually achieved by crimping devices.

[0003] The existing crimping device cannot accurately adjust the length of the crimping connection when crimping the joint, resulting in relative movement between the pipe joint and the crimping joint during crimping. This will cause the length of the crimping connection to change. A shorter connection length will affect the stability of the pipeline, and a longer connection length will affect the accuracy of the crimping. Summary of the invention

[0004] The purpose of the present invention is to provide a hot prefabricated crimping joint for a continuous fiber reinforced polyethylene composite pipe and a method thereof in order to solve the problem that the length of the crimping connection cannot be accurately adjusted.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a hot prefabricated crimping joint for continuous fiber reinforced polyethylene composite pipe, comprising a positioning ring, an upper connecting frame is installed on the top of the positioning ring, a telescopic cylinder is installed on the top of the upper connecting frame, a plurality of rectangular guide rods connected at equal distances along the center of the positioning ring are installed on the positioning ring, a movable chain is movably sleeved on the rectangular guide rod, a crimping plate slidably connected to the rectangular guide rod is connected to the output end of the telescopic cylinder, oblique connecting rods are rotatably connected to the two sides of the crimping plate through a rotating shaft, an extrusion chain is rotatably connected to the side of the oblique connecting rod away from the crimping plate through a rotating shaft, a docking correction piece is installed on the movable chain, a side connecting frame is installed on the outer wall of the positioning ring, and a displacement adjustment piece connected to the movable chain is provided on the side connecting frame.

[0006] As a further solution of the present invention: the extrusion link, the movable link and the positioning ring are coaxial in center, a plurality of buckling plates are installed on the extrusion link through an oblique connecting rod, and the plurality of buckling plates are movably connected to the rectangular guide rod.

[0007] As a further scheme of the present invention: the docking correction part includes a connecting frame installed on the outside of the movable link, the inner side of the connecting frame is rotatably connected with a one-way screw rod extending to the inner side of the movable link through a rotating shaft, the one-way screw rod is sleeved with a clamping plate slidably connected to the movable link, and the one-way screw rod is installed with a second transmission bevel gear located on the inner side of the connecting frame, one side of the connecting frame is rotatably connected to the first transmission bevel gear through a bearing, and a slave gear is installed on the side of the first transmission bevel gear away from the connecting frame, and the movable link is rotatably connected to a spur gear ring meshing with the slave gear, and the end of the spur gear ring away from the movable link is installed with a connecting warehouse, and the end of the connecting warehouse away from the spur gear ring is rotatably connected to a rotating ring, and an arc cylinder is provided on the inner side of the connecting warehouse, and an arc passage connected to the rotating ring is inserted into the inner side of the arc cylinder Tube, an arc spring is connected between the arc-shaped through tube and the arc tube, the top of the upper connecting frame is plugged with rectangular blocking rods located on both sides of the telescopic cylinder, the rectangular blocking rods pass through the rectangular guide rods, and a positioning hole is opened on the rectangular blocking rods, a clamping plate located above the rectangular guide rod is installed on the inner side of the upper connecting frame, a locking pin is plugged on the clamping plate, and a third telescopic spring connected with the clamping plate is arranged on the side of the locking pin away from the rectangular blocking rod, a connecting plate located above the upper connecting frame is installed on the top of the rectangular blocking rod, a piston rod arranged side by side with the rectangular blocking rod is arranged at the bottom of the connecting plate, a piston cylinder is arranged on the inner side of the upper connecting frame, the piston rod extends to the inner side of the piston cylinder, a connecting hose connected with the arc-shaped through tube is arranged on the piston cylinder, and a first telescopic spring connected to the upper connecting frame and located on the outside of the piston rod is arranged at the bottom of the connecting plate

[0008] As a further solution of the present invention: when the rectangular blocking rod is located at the initial position, the distance between its bottom and the rectangular guide rod is greater than the diameter of the inner wall of the movable chain.

[0009] As a further solution of the present invention: the diameter of the locking pin is equal to that of the positioning hole, and one end of the locking pin close to the rectangular blocking rod is rotatably connected to a ball through a bearing.

[0010] As a further solution of the present invention: the shifting and adjusting member includes a bidirectional screw rod installed on the side of the side connecting frame away from the positioning ring, the bidirectional screw rod is sleeved with two limit sliders that penetrate the side connecting frame and are connected to the movable link, the end of the limit slider away from the movable link is sleeved on the bidirectional screw rod, the inner wall of the side connecting frame is rotatably connected with a reversing gear through a rotating shaft, the limit slider is provided with a shifting rack located between the rectangular guide rod and the side connecting frame, the shifting rack is provided with an oblique guide plate, the top of the side connecting frame is provided with a positioning guide plate, a measuring rod is inserted into the positioning guide plate, the measuring rod is provided with scale lines, and a second telescopic spring connected to the positioning guide plate is provided on the outer side of the bottom of the measuring rod.

[0011] As a further solution of the present invention: the angle between the inclined guide plate and the shift rack is forty-five degrees, the shift racks installed on the two limit sliders on the bidirectional screw are respectively located above the reversing gear and below the reversing gear, and only the end of the shift rack located above the reversing gear is installed with the inclined guide plate.

[0012] As a further solution of the present invention: the values ​​on the scale lines decrease from the bottom of the measuring rod to the top of the measuring rod, and the position of the zero scale line on the scale lines is flush with the top of the positioning guide plate.

[0013] As a further solution of the present invention: the bottom end of the measuring rod is rotatably connected to a roller via a rotating shaft.

[0014] The present invention also discloses a method for hot prefabrication and crimping of continuous fiber reinforced polyethylene composite pipes, which adopts the hot prefabrication and crimping joint of the continuous fiber reinforced polyethylene composite pipe, and comprises the following steps:

[0015] S1: First, pass the composite pipe through the positioning ring and the movable link, then limit the composite pipe by operating the docking correction piece, and then pass one end of the crimping joint through the positioning ring and the movable link on the other side of the upper connecting frame;

[0016] S2: Then, the butt correction piece is operated again to limit the crimping joint, and then the shifting and adjusting piece is operated to move the crimping joint and the composite pipe toward each other, and the crimping joint is buckled on one end of the composite pipe as the composite pipe and the crimping joint move;

[0017] S3: In this process, the length of the composite pipe inserted into the crimping joint is adjusted by shifting the distance adjusting member, and the movement of the composite pipe and the crimping joint is stopped when the composite pipe is inserted into the crimping joint by a specified distance;

[0018] S4: Then start the telescopic cylinder, and move the clamping plate through the operation of the telescopic cylinder, so that the clamping plate can move the extrusion chain towards each other through the oblique connecting rod, so as to move multiple clamping plates around the joint, so as to clamp the connection between the pipe and the clamping joint.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By setting the docking correction piece, the end of the composite pipe to be buckled is placed on the inner side of the movable chain, and the end face of the composite pipe is fitted with the rectangular blocking rod. Then the rotating ring is rotated, and the clamping plate clamps and limits the composite pipe through the rotation of the rotating ring. The rotating ring is continued to be rotated. At this time, since the clamping plate cannot move, the rotating ring can be moved relative to the connecting bin, so that the rectangular blocking rod moves up with the piston rod. When the rectangular blocking rod moves to the top of the rectangular guide rod, the end of the composite pipe loses the cover, and the locking pin is buckled into the positioning hole to fix the rectangular blocking rod. Similarly, the buckling joint can be installed on the inner side of another movable chain, so as to achieve the accuracy of the docking between the composite pipe and the professional joint, and at the same time, the socket of the composite pipe and the professional joint is just below the buckling plate, which also provides convenience for the subsequent adjustment of the connection length of the composite pipe and the professional joint.

[0021] 2. By setting the shifting and adjusting piece, the bidirectional screw is rotated after limiting the position of the composite pipe and the joint. The two limit sliders on the bidirectional screw are moved toward each other by the rotation of the bidirectional screw. As the limit slider moves, the inclined guide plate approaches the reversing gear, and the shift rack moves to the meshing position with the reversing gear. At this time, the end face of the composite pipe is flush with the end face of the joint, and the limit slider continues to move. At this time, the inclined guide plate will squeeze the measuring rod to move the measuring rod upward relative to the positioning guide plate. At the same time, one end of the composite pipe and the joint will partially overlap. At this time, the value of the scale line corresponding to the top of the positioning guide plate is observed to know the overlapping length of the composite pipe and one end of the joint, so as to accurately adjust the connection length of the composite pipe and the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a side view of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection between the rectangular guide rod and the movable link of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection between the movable chain and the connecting chamber of the present invention;

[0026] Figure 5 This is a schematic diagram of the internal structure of the connection bin of the present invention;

[0027] Figure 6 It is a schematic diagram of the connection between the arc-shaped through pipe and the arc-shaped cylinder of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the butt-jointed correction piece of the present invention;

[0029] Figure 8It is a schematic diagram of the connection between the piston cylinder and the rectangular blocking rod of the present invention;

[0030] Fig. 9 It is a schematic diagram of the connection between the movable link and the one-way screw rod of the present invention.

[0031] In the figure: 1, positioning ring; 2, upper connecting frame; 3, rectangular guide rod; 4, movable chain; 5, telescopic cylinder; 6, extrusion chain; 7, oblique connecting rod; 8, buckling plate; 901, side connecting frame; 902, two-way screw rod; 903, limit slider; 904, connecting hose; 905, piston cylinder; 906, first telescopic spring; 907, connecting plate; 908, piston rod; 909, clamping plate; 910, rectangular blocking rod; 911, positioning hole; 912, clamping plate; 913, driven gear; 914 , the first transmission bevel gear; 915, the connecting frame; 916, the shifting rack; 917, the spur gear ring; 918, the connecting bin; 919, the rotating ring; 920, the arc-shaped through pipe; 921, the arc-shaped cylinder; 922, the arc-shaped spring; 923, the positioning guide plate; 924, the second telescopic spring; 925, the measuring rod; 926, the scale line; 927, the oblique guide plate; 928, the reversing gear; 929, the locking pin; 930, the one-way screw; 931, the second transmission bevel gear; 932, the third telescopic spring. DETAILED DESCRIPTION

[0032] 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.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0034] See also Figures 1 to 9 In the embodiment of the present invention, the hot prefabricated crimping joint of the continuous fiber reinforced polyethylene composite pipe includes a positioning ring 1, an upper connecting frame 2 is installed on the top of the positioning ring 1, a telescopic cylinder 5 is installed on the top of the upper connecting frame 2, a plurality of rectangular guide rods 3 connected at equal distances along the center of the positioning ring 1 are installed on the positioning ring 1, a movable link 4 is movably sleeved on the rectangular guide rod 3, a crimping plate 8 slidably connected to the rectangular guide rod 3 is connected to the output end of the telescopic cylinder 5, both sides of the crimping plate 8 are rotatably connected with oblique connecting rods 7 through a rotating shaft, and the side of the oblique connecting rod 7 away from the crimping plate 8 is rotatably connected with an extrusion link 6 through a rotating shaft, a docking correction piece is installed on the movable link 4, a side connecting frame 901 is installed on the outer wall of the positioning ring 1, and a displacement distance adjusting piece connected to the movable link 4 is provided on the side connecting frame 901.

[0035] In this embodiment: first, the composite pipe is passed through the positioning ring 1 and the movable link 4, and then the composite pipe is limited by operating the docking correction piece, and then one end of the crimping joint is passed through the positioning ring 1 and the movable link 4 on the other side of the upper connecting frame 2, and then the docking correction piece is operated again to limit the crimping joint, and then the crimping joint and the composite pipe are moved toward each other by operating the shifting and adjusting piece, and the crimping joint is buckled on one end of the composite pipe as the composite pipe and the crimping joint move. In this process, the length of the composite pipe buckled into the crimping joint is adjusted by the shifting and adjusting piece, and the movement of the composite pipe and the crimping joint is stopped when the composite pipe is inserted into the crimping joint by a specified distance, and then the telescopic cylinder 5 is started, and the crimping plate 8 is moved by the operation of the telescopic cylinder 5, so that the crimping plate 8 makes the extrusion link 6 move toward each other through the oblique connecting rod 7, so that the multiple crimping plates 8 around the joint are moved, thereby crimping the connection between the pipeline and the crimping joint.

[0036] Please refer to Figure 1 , Figure 2 The extrusion link 6, the movable link 4 and the center of the positioning ring 1 are coaxial, and a plurality of buckling plates 8 are installed on the extrusion link 6 through an oblique connecting rod 7, and the plurality of buckling plates 8 are movably connected to the rectangular guide rod 3.

[0037] In this embodiment: by setting this structure, when the telescopic cylinder 5 is in operation, the plurality of pressing plates 8 can press the joint from multiple directions.

[0038] Please refer to Figure 1 , Figure 3 , Figure 5 , Figure 6 , Figure 8 , Fig. 9The butt-jointed correction piece includes a connecting frame 915 installed on the outside of the movable link 4, the inner side of the connecting frame 915 is rotatably connected to a one-way screw rod 930 extending to the inner side of the movable link 4 through a rotating shaft, the one-way screw rod 930 is sleeved with a clamping plate 912 slidably connected to the movable link 4, and the one-way screw rod 930 is installed with a second transmission bevel gear 931 located on the inner side of the connecting frame 915. One side of the connecting frame 915 is rotatably connected to a first transmission bevel gear 914 through a bearing, and the first transmission bevel gear 914 is away from the connecting frame 91 A driven gear 913 is installed on one side of the movable link 4, and a spur gear ring 917 meshing with the driven gear 913 is rotatably connected at one end of the movable link 4 close to the driven gear 913. A connecting chamber 918 is installed at one end of the spur gear ring 917 away from the movable link 4, and a rotating ring 919 is rotatably connected at one end of the connecting chamber 918 away from the spur gear ring 917. An arc tube 921 is provided on the inner side of the connecting chamber 918, and an arc through pipe 920 connected to the rotating ring 919 is inserted on the inner side of the arc tube 921. The arc through pipe 920 is connected to the rotating ring 919. An arc spring 922 is connected between the arc tubes 921, and a rectangular blocking rod 910 located on both sides of the telescopic cylinder 5 is inserted at the top of the upper connecting frame 2. The rectangular blocking rod 910 passes through the rectangular guide rod 3, and a positioning hole 911 is opened on the rectangular blocking rod 910. A card plate 909 located above the rectangular guide rod 3 is installed on the inner side of the upper connecting frame 2, and a locking pin 929 is inserted on the card plate 909. The side of the locking pin 929 away from the rectangular blocking rod 910 is provided with a third telescopic spring 93 connected to the card plate 909. 2. A connecting plate 907 located above the upper connecting frame 2 is installed on the top of the rectangular blocking rod 910, and a piston rod 908 arranged side by side with the rectangular blocking rod 910 is arranged at the bottom end of the connecting plate 907. A piston cylinder 905 is arranged on the inner side of the upper connecting frame 2. The piston rod 908 extends to the inner side of the piston cylinder 905. A connecting hose 904 connected to the arc-shaped through pipe 920 is arranged on the piston cylinder 905. A first telescopic spring 906 connected to the upper connecting frame 2 and located on the outer side of the piston rod 908 is arranged at the bottom of the connecting plate 907.

[0039] In this embodiment, the end of the composite tube to be buckled is placed on the inner side of the movable chain 4, and the end face of the composite tube is fitted with the rectangular blocking rod 910. Then, the rotating ring 919 is rotated, and the connecting chamber 918 drives the spur gear ring 917 to rotate through the rotation of the rotating ring 919, so that the spur gear ring 917 drives the one-way screw 930 to rotate through the rotating gear 913, the first transmission bevel gear 914, and the second transmission bevel gear 931. When the one-way screw 930 rotates, the splint 912 can move toward the center of the movable chain 4. In this way, the clamping plate 912 clamps the composite tube to limit the position, so that the center of the composite tube is coaxial with the center of the movable chain 4, and the rotating ring 919 continues to rotate. At this time, since the clamping plate 912 cannot move, the rotating ring 919 can move relative to the connecting chamber 918. In this process, the arc tube 920 is inserted into the arc cylinder 921, and the arc spring 922 shrinks and recovers, so that the aqueous solution inside the arc cylinder 921 passes through the arc tube 920 and the connecting hose 904 into the piston cylinder 905. At this time, the piston rod 908 will move with the aqueous solution. The piston cylinder 905 is injected and moved upward relative to the piston cylinder 905, so that the rectangular blocking rod 910 moves upward with the piston rod 908. When the rectangular blocking rod 910 moves above the rectangular guide rod 3, the end of the composite pipe loses its shielding, and at the same time, the locking pin 929 is buckled into the positioning hole 911 under the action of the third telescopic spring 932, so that the rectangular blocking rod 910 can be fixed. Similarly, the buckling joint can be installed on the inner side of another movable chain 4, so as to achieve the accuracy of docking between the composite pipe and the professional joint, and also make the composite pipe and the professional joint more tightly connected. The sleeve joint is located just below the buckling plate 8, and it also provides convenience for adjusting the subsequent connection length of the composite pipe and the professional joint. When the buckling is completed, the rotating ring 919 is rotated in the opposite direction to make the clamp 912 lose the limit on the composite pipe or the professional joint, and because the locking pin 929 is buckled in the positioning hole 911, the rectangular blocking rod 910 cannot move down at this time, and then the buckled pipe joint can be taken out, and then the locking pin 929 is pulled to separate the locking pin 929 from the positioning hole 911, so as to restore the rectangular blocking rod 910 and the rotating ring 919.

[0040] Please refer to Figure 3 , Figure 8 When the rectangular blocking rod 910 is located at the initial position, the distance between its bottom and the rectangular guide rod 3 is greater than the diameter of the inner wall of the movable link 4.

[0041] In this embodiment: by setting this structure, the positioning hole 911 blocks and limits the pipe inside the movable chain 4, so that the distance between the fixed pipe and the joint and the buckling plate 8 is equal.

[0042] Please refer to Figure 8The locking pin 929 has a diameter equal to that of the positioning hole 911 , and one end of the locking pin 929 close to the rectangular blocking rod 910 is rotatably connected to a ball through a bearing.

[0043] In this embodiment: this structure is provided to reduce the friction between the rectangular blocking rod 910 and the locking pin 929 when the rectangular blocking rod 910 moves, and at the same time, when the positioning hole 911 moves to a position aligned with the locking pin 929, the locking pin 929 is inserted into the inner side of the positioning hole 911 to limit the rectangular blocking rod 910.

[0044] Please refer to Figure 1 , Figure 3 , Figure 7 The shifting and adjusting member includes a bidirectional screw rod 902 installed on the side of the side connecting frame 901 away from the positioning ring 1, and two limiting sliders 903 are sleeved on the bidirectional screw rod 902, which penetrate the side connecting frame 901 and are connected to the movable link 4. The end of the limiting slider 903 away from the movable link 4 is sleeved on the bidirectional screw rod 902, and the inner wall of the side connecting frame 901 is rotatably connected with a reversing gear 928 through a rotating shaft. A shifting rack 916 located between the rectangular guide rod 3 and the side connecting frame 901 is provided on the limiting slider 903, and an oblique guide plate 927 is installed on the shifting rack 916. A positioning guide plate 923 is installed on the top of the side connecting frame 901, and a measuring rod 925 is inserted on the positioning guide plate 923. A scale line 926 is provided on the measuring rod 925, and a second telescopic spring 924 connected to the positioning guide plate 923 is provided on the outer side of the bottom of the measuring rod 925.

[0045] In this embodiment: after limiting the position of the composite pipe and the joint, the two-way screw rod 902 is rotated, and the two limit sliders 903 on the two-way screw rod 902 are moved toward each other through the rotation of the two-way screw rod 902. As the limit slider 903 moves, the inclined guide plate 927 approaches the reversing gear 928, and the shift rack 916 moves to the meshing position with the reversing gear 928. At this time, the end face of the composite pipe is flush with the end face of the joint, and the limit slider 903 continues to move. At this time, the inclined guide plate 927 will squeeze the measuring rod 925, so as to make the measuring rod 925 move upward relative to the positioning guide plate 923. At the same time, one end of the composite pipe and the joint will partially overlap. At this time, the value of the scale line 926 corresponding to the top of the positioning guide plate 923 is observed to know the overlapping length of the composite pipe and one end of the joint, so as to accurately adjust the connection length of the composite pipe and the joint.

[0046] Please refer to Figure 1 , Figure 7The included angle between the inclined guide plate 927 and the shift rack 916 is forty-five degrees. The shift racks 916 installed on the two limit sliders 903 on the bidirectional screw rod 902 are respectively located above the reversing gear 928 and below the reversing gear 928, and only the end of the shift rack 916 located above the reversing gear 928 is installed with the inclined guide plate 927.

[0047] In this embodiment: this structure is provided to prevent the limit slider 903 from obstructing each other during movement of the shift rack 916, and at the same time, the moving distance of the limit slider 903 is equal to the moving distance of the measuring rod 925 after the inclined guide plate 927 contacts the bottom of the measuring rod 925.

[0048] Please refer to Figure 7 The values ​​on the scale lines 926 decrease from the bottom of the measuring rod 925 to the top of the measuring rod 925 , and the zero scale line position on the scale lines 926 is flush with the top of the positioning guide plate 923 .

[0049] In this embodiment: by setting this structure, when the inclined guide plate 927 squeezes the measuring rod 925, twice the moving distance of the measuring rod 925 is the overlapping length between the composite pipe and the joint, so as to quickly calculate the contact length between the composite pipe and the joint.

[0050] Please refer to Figure 7 The bottom end of the measuring rod 925 is rotatably connected to a roller via a rotating shaft.

[0051] In this embodiment: by providing this structure, the friction between the oblique guide plate 927 and the measuring rod 925 is reduced, thereby increasing the service life of the measuring rod 925 and the oblique guide plate 927.

[0052] In combination with the above-mentioned continuous fiber reinforced polyethylene composite pipe hot prefabrication crimping joint, a continuous fiber reinforced polyethylene composite pipe hot prefabrication crimping method is provided, which specifically includes the following steps:

[0053] S1: Place the end of the composite tube to be buckled inside the movable link 4, and make the end surface of the composite tube fit with the rectangular blocking rod 910;

[0054] S2: Then rotate the rotating ring 919, and the connecting chamber 918 drives the spur gear ring 917 to rotate through the rotation of the rotating ring 919, so that the spur gear ring 917 drives the one-way screw 930 to rotate through the rotating gear 913, the first transmission bevel gear 914, and the second transmission bevel gear 931. When the one-way screw 930 rotates, the clamping plate 912 can move toward the center of the circle of the movable chain 4 so that the clamping plate 912 clamps the composite pipe to limit the position, so that the center of the composite pipe is coaxial with the center of the circle of the movable chain 4, and the rotating ring 919 continues to rotate. At this time, since the clamping plate 912 cannot move, the rotating ring 919 can move relative to the connecting chamber 918. In this process, the arc-shaped through pipe 920 is inserted into the arc-shaped tube 9 21, and at the same time, the arc spring 922 shrinks and recovers, so that the aqueous solution inside the arc cylinder 921 enters the piston cylinder 905 through the arc through pipe 920 and the connecting hose 904. At this time, the piston rod 908 will move up relative to the piston cylinder 905 as the aqueous solution is injected into the piston cylinder 905, so that the rectangular blocking rod 910 moves up with the piston rod 908. When the rectangular blocking rod 910 moves above the rectangular guide rod 3, the end of the composite pipe loses its cover, and at the same time, the locking pin 929 is buckled into the positioning hole 911 under the action of the third telescopic spring 932, so that the rectangular blocking rod 910 can be fixed. Similarly, the buckling joint can be installed on the inner side of another movable chain 4, so as to achieve the accuracy of docking between the composite pipe and the professional joint;

[0055] S3: Rotate the bidirectional screw rod 902, and the two limit sliders 903 on the bidirectional screw rod 902 move toward each other through the rotation of the bidirectional screw rod 902. As the limit slider 903 moves, the inclined guide plate 927 approaches the reversing gear 928, and the shift rack 916 moves to the meshing position with the reversing gear 928. At this time, the end face of the composite pipe is flush with the end face of the joint, and the limit slider 903 continues to move. At this time, the inclined guide plate 927 will squeeze the measuring rod 925, so that the measuring rod 925 moves upward relative to the positioning guide plate 923. At the same time, one end of the composite pipe and the joint will partially overlap. At this time, the value of the scale line 926 corresponding to the top of the positioning guide plate 923 is observed to know the overlapping length of the composite pipe and one end of the joint, so as to accurately adjust the connection length of the composite pipe and the joint.

[0056] S4: Then start the telescopic cylinder 5, and move the clamping plate 8 through the operation of the telescopic cylinder 5, so that the clamping plate 8 makes the extrusion chain 6 move toward each other through the oblique connecting rod 7, so that the multiple clamping plates 8 around the joint are moved, so as to perform the clamping treatment on the connection between the pipe and the clamping joint. When the clamping is completed, the rotating ring 919 is rotated in the opposite direction to make the clamping plate 912 lose the limit on the composite pipe or professional joint, and because the locking pin 929 is buckled in the positioning hole 911, the rectangular blocking rod 910 cannot move down at this time, and then the pipe joint after the clamping can be taken out, and then the locking pin 929 is pulled to separate the locking pin 929 from the positioning hole 911, so as to restore the rectangular blocking rod 910 and the rotating ring 919.

[0057] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hot prefabricated crimping joint for a continuous fiber reinforced polyethylene composite pipe, comprising a positioning ring (1), characterized in that: An upper connecting frame (2) is installed on the top of the positioning ring (1), and a telescopic cylinder (5) is installed on the top of the upper connecting frame (2). A plurality of rectangular guide rods (3) connected at equal distances along the center of the positioning ring (1) are installed on the positioning ring (1), and a movable link (4) is movably sleeved on the rectangular guide rod (3). The output end of the telescopic cylinder (5) is connected to a buckling plate (8) slidably connected to the rectangular guide rod (3), and the two sides of the buckling plate (8) are rotatably connected to an oblique connecting rod (7) via a rotating shaft, and the side of the oblique connecting rod (7) away from the buckling plate (8) is rotatably connected to an extrusion link (6) via a rotating shaft, and a docking correction piece is installed on the movable link (4). A side connecting frame (901) is installed on the outer wall of the positioning ring (1), and a displacement distance adjustment piece connected to the movable link (4) is provided on the side connecting frame (901); The docking correction piece comprises a connecting frame (915) mounted on the outside of the movable link (4); the inner side of the connecting frame (915) is rotatably connected to a one-way screw rod (930) extending to the inner side of the movable link (4) via a rotating shaft; a clamping plate (912) slidably connected to the movable link (4) is sleeved on the one-way screw rod (930); a second transmission bevel gear (931) located on the inner side of the connecting frame (915) is mounted on the one-way screw rod (930); one side of the connecting frame (915) is rotatably connected to a first transmission bevel gear (914) via a bearing; the first transmission bevel gear (914) is located away from the connecting frame (915). A driven gear (913) is installed on the side of the movable link (4); an end of the movable link (4) close to the driven gear (913) is rotatably connected to a spur gear ring (917) meshing with the driven gear (913); an end of the spur gear ring (917) away from the movable link (4) is installed with a connecting bin (918); an end of the connecting bin (918) away from the spur gear ring (917) is rotatably connected to a rotating ring (919); an arc-shaped cylinder (921) is provided on the inner side of the connecting bin (918); an arc-shaped through pipe (920) connected to the rotating ring (919) is inserted on the inner side of the arc-shaped cylinder (921); the arc-shaped through pipe (920) is connected to the arc-shaped through pipe (920) An arc spring (922) is connected between the cylinder (921); a rectangular blocking rod (910) located on both sides of the telescopic cylinder (5) is inserted into the top of the upper connecting frame (2); the rectangular blocking rod (910) passes through the rectangular guide rod (3); a positioning hole (911) is provided on the rectangular blocking rod (910); a locking plate (909) located above the rectangular guide rod (3) is installed on the inner side of the upper connecting frame (2); a locking pin (929) is inserted into the locking plate (909); and a third telescopic spring (932) connected to the locking plate (909) is provided on the side of the locking pin (929) away from the rectangular blocking rod (910). The top of the rectangular blocking rod (910) is provided with a connecting plate (907) located above the upper connecting frame (2); the bottom end of the connecting plate (907) is provided with a piston rod (908) arranged side by side with the rectangular blocking rod (910); the inner side of the upper connecting frame (2) is provided with a piston cylinder (905); the piston rod (908) extends to the inner side of the piston cylinder (905); the piston cylinder (905) is provided with a connecting hose (904) connected to the arc-shaped through pipe (920); the bottom of the connecting plate (907) is provided with a first telescopic spring (906) connected to the upper connecting frame (2) and located outside the piston rod (908); The shifting and adjusting member comprises a bidirectional screw rod (902) mounted on a side of the side connecting frame (901) away from the positioning ring (1); two limit sliders (903) penetrating the side connecting frame (901) and connected to the movable link (4) are sleeved on the bidirectional screw rod (902); one end of the limit slider (903) away from the movable link (4) is sleeved on the bidirectional screw rod (902); the inner wall of the side connecting frame (901) is rotatably connected to a reversing gear (928) via a rotating shaft; and the limit slider (903) is provided with a A shifting rack (916) is provided between the rectangular guide rod (3) and the side connecting frame (901); an oblique guide plate (927) is mounted on the shifting rack (916); a positioning guide plate (923) is mounted on the top of the side connecting frame (901); a measuring rod (925) is plugged into the positioning guide plate (923); a scale line (926) is provided on the measuring rod (925); and a second telescopic spring (924) connected to the positioning guide plate (923) is provided on the outer side of the bottom of the measuring rod (925).

2. The continuous fiber reinforced polyethylene composite pipe hot prefabricated crimping joint according to claim 1, characterized in that: The extrusion link (6), the movable link (4) and the positioning ring (1) are coaxially centered, and a plurality of buckling plates (8) are mounted on the extrusion link (6) via an oblique connecting rod (7), and the plurality of buckling plates (8) are all movably connected to the rectangular guide rod (3).

3. The hot prefabricated crimping joint for continuous fiber reinforced polyethylene composite pipe according to claim 1, characterized in that: When the rectangular blocking rod (910) is located at the initial position, the distance between its bottom and the rectangular guide rod (3) is greater than the diameter of the inner wall of the movable link (4).

4. The continuous fiber reinforced polyethylene composite pipe hot prefabricated crimping joint according to claim 1, characterized in that: The locking pin (929) has a diameter equal to that of the positioning hole (911), and one end of the locking pin (929) close to the rectangular blocking rod (910) is rotatably connected to a ball via a bearing.

5. The continuous fiber reinforced polyethylene composite pipe hot prefabricated crimping joint according to claim 1, characterized in that: The angle between the inclined guide plate (927) and the shifting rack (916) is forty-five degrees. The shifting racks (916) installed on the two limit sliders (903) on the bidirectional screw rod (902) are respectively located above the reversing gear (928) and below the reversing gear (928), and only one end of the shifting rack (916) located above the reversing gear (928) is installed with the inclined guide plate (927).

6. The continuous fiber reinforced polyethylene composite pipe hot prefabricated crimping joint according to claim 1, characterized in that: The values ​​on the scale lines (926) decrease from the bottom of the measuring rod (925) to the top of the measuring rod (925), and the position of the zero scale line on the scale lines (926) is flush with the top of the positioning guide plate (923).

7. The continuous fiber reinforced polyethylene composite pipe hot prefabricated crimping joint according to claim 1, characterized in that: The bottom end of the measuring rod (925) is rotatably connected to a roller via a rotating shaft.

8. A method for hot prefabrication and crimping of continuous fiber reinforced polyethylene composite pipes, characterized in that: The hot prefabricated crimping joint of the continuous fiber reinforced polyethylene composite pipe according to any one of claims 1 to 7 comprises the following steps: S1: First, the composite pipe is passed through the positioning ring (1) and the movable link (4), and then the composite pipe is limited by operating the docking correction piece, and then one end of the crimping joint is passed through the positioning ring (1) and the movable link (4) on the other side of the upper connecting frame (2); S2: Then, the butt correction piece is operated again to limit the crimping joint, and then the shifting and adjusting piece is operated to move the crimping joint and the composite pipe toward each other, and the crimping joint is buckled on one end of the composite pipe as the composite pipe and the crimping joint move; S3: In this process, the length of the composite pipe inserted into the crimping joint is adjusted by shifting the distance adjusting member, and the movement of the composite pipe and the crimping joint is stopped when the composite pipe is inserted into the crimping joint by a specified distance; S4: Then, the telescopic cylinder (5) is started, and the operation of the telescopic cylinder (5) causes the clamping plate (8) to move, thereby causing the clamping plate (8) to move the extrusion chain (6) toward each other through the oblique connecting rod (7), thereby causing the plurality of clamping plates (8) around the joint to move, thereby performing a clamping process on the connection between the pipe and the clamping joint.

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