Portable corrugated pipe connecting joint and electric melting method

Abstract

The application relates to a portable corrugated pipe connecting joint and an electric melting method, relates to the technical field of corrugated pipe connection, and aims to solve the problem of low connection stability of the corrugated pipe caused by the low structural strength of a heat-shrink sleeve. The application comprises an electric melting pipe fitting, an installation groove is formed in the inner wall of the electric melting pipe fitting along the circumference of the electric melting pipe fitting, an electric melting ring is arranged in the installation groove, the ring arm of the electric melting ring is adapted to the pipe wall of the corrugated pipe, the electric melting ring comprises a first arc-shaped plate and a second arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate are both located in the installation groove and can move in the installation groove along the radial direction of the electric melting pipe fitting, the side walls of the first arc-shaped plate and the second arc-shaped plate are both connected with electrode rods, one end of each electrode rod penetrates through the pipe wall of the electric melting pipe fitting and extends out of the outer wall of the electric melting pipe fitting, and the outer wall of the electric melting pipe fitting is provided with a driving assembly for driving the electrode rods to move. The application has the effect of improving the stability of the connection of the corrugated pipe.

Description

Technical Field

[0001] The present application relates to the field of bellows connection, and in particular to a convenient bellows connection joint and an electric fusion method. Background Art

[0002] Electric fusion is a method of joining MDPE, HDPE and others using fittings with a built-in electric heating element that is used to weld the joints together.

[0003] In the related art, the electric fusion connection between two plastic pipes requires the use of an electric fusion joint, which is a cylindrical tube body. When connecting two plastic pipes, the two plastic pipes are inserted into the electric fusion joint from both ends, and then the end walls of the two plastic pipes are attached to each other. Then, the two motors outside the electric fusion joint are energized to make the preset resistance wire inside the electric fusion joint energized and heated. The resistance wire inside the electric fusion joint can heat the two plastic pipes to make the surface of the plastic pipes melt. After the plastic pipes are melted, the power is cut off at the electrodes. After the plastic pipes are condensed again, the two plastic pipes can be connected together.

[0004] Regarding the above-mentioned related technologies, this type of electric fusion connection method can only be used for pipes with smooth and uniform outer walls, and is difficult to apply to corrugated pipes; and in the related technologies, when connecting the corrugated pipes, a heat shrink sleeve is put between two sections of the corrugated pipes, and the heat shrink sleeve is heated so that the heat shrink sleeve is tightly wrapped around the ends of the two corrugated pipes. However, the structural strength of the heat shrink sleeve is low, which makes the connection stability of the corrugated pipes low, and it is more inconvenient to operate when connecting the corrugated pipes with the heat shrink sleeve. Summary of the Invention

[0005] In order to improve the stability of the bellows connection, the present application provides a convenient bellows connection joint and an electric fusion method.

[0006] The present application provides a convenient bellows connection joint and an electric fusion method using the following technical solutions:

[0007] A convenient corrugated pipe connection joint includes an electric fusion pipe fitting, the inner wall of the electric fusion pipe fitting is provided with a mounting groove along the circumference of the electric fusion pipe fitting, an electric fusion ring is provided in the mounting groove, the electric fusion ring arm is configured to adapt to the wall of the corrugated pipe, the electric fusion ring includes a first arc plate and a second arc plate, the first arc plate and the second arc plate are both located in the mounting groove and can move in the mounting groove along the radial direction of the electric fusion pipe fitting; the side walls of the first arc plate and the second arc plate are both connected to an electrode rod, one end of the electrode rod passes through the wall of the electric fusion pipe fitting and extends from the outer wall of the electric fusion pipe fitting, and the outer wall of the electric fusion pipe fitting is provided with a driving component for driving the electrode rod to move.

[0008] By adopting the above technical solution, when connecting the corrugated pipe, the driving assembly is used to drive the electrode rod to move toward the outside of the electric fusion pipe fitting, while the electrode rod moves in the waist-shaped groove, and the movement of the electrode rod drives the first curved plate and the second curved plate to move and insert into the installation groove. Then, the ends of the two sections of the corrugated pipe are inserted into the electric fusion pipe fitting from both ends, so that the ends of the two sections of the corrugated pipe are in contact with each other, and the contact point of the two sections of the corrugated pipe is located between the first curved plate and the second curved plate; at this time, the driving assembly is used again to drive the electrode rod to move and drive the first curved plate and the second curved plate to move out of the installation groove and fasten them to the junction of the two sections of the corrugated pipe, so that the two ends of the first curved plate and the two ends of the second curved plate are in contact with each other at the same time. At this time, when the two electrode rods are energized, the first curved plate and the second curved plate can be energized, so that the first curved plate and the second curved plate are heated, and the junction of the two sections of the corrugated pipe is melted. After the corrugated pipe is melted, the power is turned off, and the connection of the two sections of the corrugated pipe can be achieved. The opening of the mounting groove, the adaptive arrangement of the first and second curved plates and the wall of the corrugated pipe, and the movable arrangement of the electrode rod allow the corrugated pipe to be stably inserted into the electric fusion pipe fitting, and the first and second curved plates can be adapted and attached to the wall of the corrugated pipe, so that the electric fusion method of a general flat-wall pipe body can be used for the connection of the corrugated pipe, reducing the use of heat shrink sleeves. The structural strength of the electric fusion pipe fitting is higher than that of the heat shrink tube, thereby improving the stability of the corrugated pipe connection.

[0009] Preferably, the driving assembly includes an elastic rod, a rope roller and two sections of pull rope, the elastic rod is a semicircular rod, the middle part of the elastic rod is fixedly connected to the outer wall and is simultaneously buckled on the outer wall of the electric fusion pipe; the rope roller is rotatably connected to the middle part of the elastic rod, the two sections of the pull rope are both wound around the rope roller, and the ends of the two sections of the pull rope away from the rope roller are respectively connected to the two sections of the elastic rod, and the elastic rod is provided with a limiting assembly for limiting the rope roller;

[0010] The elastic rod has waist-shaped grooves at both ends, and the two electrode rods pass through the corresponding waist-shaped grooves respectively. The electrode rod sidewalls have matching grooves, and the elastic rods with waist-shaped grooves are inserted into the corresponding matching grooves respectively.

[0011] By adopting the above technical solution, when driving the electrode rod, the limiter assembly on the rope winding roller is removed, and the operator rotates the rope winding roller to reel in the draw rope, causing two sections of the draw rope to be wound around the rope winding roller. The draw rope exerts tension on the ends of the elastic rod, causing the ends of the elastic rod to elastically expand. As the elastic rod expands, the waist-shaped groove and the matching groove cooperate to drive the electrode rod toward the outside of the electric fusion pipe fitting. At the same time, the electrode rod moves within the waist-shaped groove, and the electrode rod drives the first curved plate and the second curved plate to move. After the electrode rod has moved, the limiter assembly is used again to limit the rope winding roller.

[0012] Preferably, the limiting assembly includes a prismatic platform, a spring, a connecting rod and a limiting plate, the connecting rod being connected to the middle of the outer wall of the elastic rod, the connecting rod passing through the rope winding roller and extending from the end wall of the rope winding roller, the limiting plate being connected to one end of the connecting rod extending out of the rope winding roller, the prismatic platform being connected to the side wall of the limiting plate, the end wall of the rope winding roller being provided with a prismatic groove that is adapted to the prismatic platform, the spring being connected to the outer wall of the elastic rod, the rope winding roller being provided with a ring groove for inserting the spring near one end of the spring, and the spring being used to push the end wall of the rope winding roller into contact with the limiting plate.

[0013] By adopting the above technical solution, when the rope winding roller needs to be rotated, the rope winding roller is pinched and pushed along the length direction of the connecting rod in the direction away from the prismatic platform. The rope winding roller compresses the spring at the same time. After the rope winding roller moves and drives the prismatic platform out of the prismatic wall groove, the rope winding roller can be rotated to reel in or release the rope; when the rope winding roller rotates, the spring rotates relatively in the annular groove.

[0014] After the rope winding roller is used, the thrust on the rope winding roller is removed, and the spring force pushes the rope winding roller to move along the length direction of the connecting rod close to the prismatic platform, so that the prismatic platform is inserted into the prismatic groove. After the rope winding roller contacts the limit plate at the same time, the rope winding roller stops moving. The prismatic platform and the prismatic groove cooperate to limit the rope winding roller and reduce accidental rotation of the rope winding roller.

[0015] Preferably, the outer side wall of the rope winding roller is connected to a connecting ring, and the outer side wall of the connecting ring is connected to a connecting piece.

[0016] Generally, when driving the rope winding roller to rotate, the operator needs to pinch the rope winding roller first and then rotate it. After rotating it to a certain angle, the operator needs to release the rope winding roller with his hand, and then pinch the rope winding roller again to push and rotate it, which makes the operation more inconvenient. By adopting the above technical solution, when driving the rope winding roller to rotate, the operator holds the connecting piece and pulls the connecting piece away from the prismatic table. The connecting piece drives the rope winding roller to move along the length direction of the connecting rod and away from the prismatic table through the connecting ring, thereby realizing the pushing and rotation of the rope winding roller. The operator can always hold the connecting piece to operate the rope winding roller, which reduces the situation where the operator needs to loosen the rope winding roller multiple times and improves the convenience of operation.

[0017] Preferably, the outer wall of the rope winding roller is provided with two rope receiving grooves, the rope receiving grooves are provided along the circumference of the outer wall of the rope winding roller, and the two sections of the pull rope are respectively wound in the corresponding rope receiving grooves.

[0018] Generally, the pull rope is directly wound on the outer wall of the rope winding roller, and the pull rope is provided with two sections. When the pull rope is wound more, the two sections of the pull rope are prone to position interference; by adopting the above technical solution, the two sections of the pull rope are respectively wound in the corresponding rope receiving grooves, and the inner wall of the rope receiving groove can limit the position of the wound pull rope, thereby reducing the position interference between the two sections of the pull rope.

[0019] Preferably, an outer side wall of the electric fusion pipe is provided with an accommodating groove for inserting and installing the elastic rod, the two electrode rods are located in the accommodating groove, and the middle part of the elastic rod is connected to the inner wall of the accommodating groove.

[0020] Generally, the elastic rod is directly connected to the outer wall of the electric fusion pipe fitting. When the electric fusion pipe fitting is stored idle, the elastic rod is easily in contact with foreign objects, causing interference with the storage position of the electric fusion pipe fitting. By adopting the above technical solution, the elastic rod is connected to the accommodating groove, thereby reducing the contact between the elastic rod and foreign objects when the electric fusion pipe fitting is stored idle, and reducing the impact of the elastic rod on the storage of the electric fusion pipe fitting.

[0021] Preferably, both ends of the elastic rod are rotatably connected to guide wheels, the pull rope is wound around the corresponding guide wheels, and the pull rope is perpendicular to the tangent of the corresponding position of the outer wall of the elastic rod at the connection with the elastic rod.

[0022] By adopting the above technical solution, the setting of the guide wheel can make the direction of the pulling force exerted by the pull rope on the outer wall of the elastic rod perpendicular to the tangent of the corresponding position of the outer wall of the elastic rod, thereby reducing the component force generated by the pulling force of the pull rope on the elastic rod in other directions, increasing the actual power of the pulling force, and making the pulling of the elastic rod by the pull rope more labor-saving.

[0023] Preferably, the outer side wall of the elastic rod is connected with a plurality of positioning rings, and the plurality of positioning rings are evenly distributed at both ends of the rope winding roller, and the two sections of the pull rope pass through the corresponding positioning rings respectively.

[0024] By adopting the above technical solution,

[0025] An electric fusion method for a convenient bellows connection joint:

[0026] Remove the limit of the rope winding roller by the limit assembly, rotate the rope winding roller to reel in the two sections of the rope, so that the rope exerts tension on both ends of the elastic rod, causing the two ends of the elastic rod to elastically open;

[0027] When the elastic rod opens, it drives the electrode rod to move outside the electric fusion pipe fitting. At the same time, the electrode rod moves in the waist-shaped groove. The movement of the electrode rod drives the first curved plate and the second curved plate to move and insert into the installation groove, and then the limiting component limits the rope winding roller.

[0028] Insert the ends of the two sections of the corrugated pipe into the electric fusion pipe fitting from both ends, so that the ends of the two sections of the corrugated pipe touch each other, and the touching part of the two sections of the corrugated pipe is located between the first curved plate and the second curved plate;

[0029] The limit of the rope winding roller by the limit assembly is removed again, and the rope winding roller is rotated to release the two sections of the rope. The elastic rod contracts under its own elastic force and drives the electrode rod to move toward the inside of the electric fusion pipe fitting. The movement of the electrode rod drives the first curved plate and the second curved plate to move out of the installation groove and fasten them at the junction of the two sections of the corrugated pipe. The two ends of the first curved plate are simultaneously in contact with the two ends of the second curved plate.

[0030] By energizing the two electrode rods, the first arc plate and the second arc plate can be energized, causing the first arc plate and the second arc plate to heat up and melt the joints of the two sections of the corrugated pipe. After the corrugated pipe is melted, the power is turned off to achieve the connection of the two sections of the corrugated pipe.

[0031] By adopting the above technical solution, the positioning ring can make the pull rope bend and adapt to the shape of the outer wall of the elastic rod along the length direction of the outer wall of the elastic rod, reduce the pull rope from being stretched between the rope roller and the elastic rod, and reduce the impact of the position of the elastic rope on the operator's operation.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. The opening of the mounting groove, the adaptive arrangement of the first and second curved plates and the wall of the corrugated pipe, and the movable arrangement of the electrode rod allow the corrugated pipe to be stably inserted into the electric fusion pipe fitting, and the first and second curved plates can be adapted to fit closely with the wall of the corrugated pipe, so that the electric fusion method of a general flat-wall pipe body can be used for the connection of the corrugated pipe, reducing the use of heat shrink sleeves. The structural strength of the electric fusion pipe fitting is higher than that of the heat shrink tube, thereby improving the stability of the corrugated pipe connection.

[0034] 2. The setting of the connecting ring and the connecting piece improves the convenience of the operator in pushing and rotating the rope roller.

[0035] 3. The opening of the rope reeling groove reduces the position interference between the two rope sections when they are reeled on the rope reeling roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a structural diagram of a convenient bellows connection joint in an embodiment of the present application.

[0037] Figure 2 It is a cross-sectional schematic diagram of the positional relationship between the body limiting assembly and the elastic rod in the embodiment of the present application.

[0038] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0039] Explanation of the accompanying reference numerals: 1. Electric fusion pipe fitting; 11. Mounting groove; 12. Accommodating groove; 2. Electric fusion ring; 21. First arc-shaped plate; 22. Second arc-shaped plate; 23. Electrode rod; 231. Matching groove; 3. Driving assembly; 31. Elastic rod; 311. Waist-shaped groove; 312. Guide wheel; 313. Positioning ring; 32. Rope winding roller; 321. Prismatic groove; 322. Rope collecting groove; 323. Connecting ring; 324. Connecting plate; 325. Ring groove; 33. Pull rope; 4. Limiting assembly; 41. Prismatic platform; 42. Spring; 43. Connecting rod; 44. Limiting plate. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-3 This application is described in further detail.

[0041] The present application discloses a convenient bellows connection joint and an electric fusion method. Figure 1 The convenient corrugated pipe connection joint includes an electric fusion pipe fitting 1, an inner wall of the electric fusion pipe fitting 1 is provided with a mounting groove 11 along the circumference of the electric fusion pipe fitting 1, the mounting groove 11 is annular, and an electric fusion ring 2 is arranged in the mounting groove 11, the electric fusion ring 2 includes a first arc plate 21 and a second arc plate 22, the plate walls of the first arc plate 21 and the second arc plate 22 are arranged to be adapted to the wall of the corrugated pipe, the side walls of the first arc plate 21 and the second arc plate 22 are welded with an electrode rod 23, one end of the electrode rod 23 passes through the wall of the electric fusion pipe fitting 1 and extends from the outer wall of the electric fusion pipe fitting 1, and the outer wall of the electric fusion pipe fitting 1 is provided with a driving component 3 for driving the electrode rod 23 to move.

[0042] Reference Figure 1 The outer wall of the electric fusion pipe fitting 1 is provided with a receiving groove 12, and the driving assembly 3 includes an elastic rod 31, a rope winding roller 32 and two sections of pull rope 33. The elastic rod 31 is a semicircular rod, and the middle part of the elastic rod 31 is fixedly connected to the inner wall of the receiving groove 12. The rope winding roller 32 is rotatably set in the middle part of the outer wall of the elastic rod 31, and a rope receiving groove 322 is provided on the outer wall of the rope winding roller 32. The two sections of pull rope 33 are respectively connected to the inner wall of the rope receiving groove 322. At the same time, the two sections of pull rope 33 are respectively wound in the corresponding rope receiving groove 322, and the ends of the two sections of pull rope 33 away from the rope winding roller 32 are respectively fixedly connected to the two sections of the elastic rod 31.

[0043] Reference Figure 1 and Figure 2 The elastic rod 31 has waist-shaped grooves 311 at both ends, and the two electrode rods 23 pass through the corresponding waist-shaped grooves 311 respectively. The side walls of the electrode rods 23 have matching grooves 231, and the positions of the elastic rods 31 with waist-shaped grooves 311 are inserted into the corresponding matching grooves 231 respectively.

[0044] Reference Figure 2 and Figure 3The limit assembly 4 is provided on the elastic rod 31, and the limit assembly 4 includes a prismatic platform 41, a spring 42, a connecting rod 43 and a limit plate 44. The connecting rod 43 is welded to the middle of the outer wall of the elastic rod 31, and the connecting rod 43 passes through the rope winding roller 32 and extends from the end wall of the rope winding roller 32, and the rope winding roller 32 is rotatably connected to the connecting rod 43. The limit plate 44 is fixedly connected to the end of the rope winding roller 32 extending from the connecting rod 43. The prismatic platform 41 is connected to the side wall of the limit plate 44. The end wall of the rope winding roller 32 is provided with a prismatic groove 321, the prismatic platform 41 is inserted into the prismatic groove 321 and adapted to the inner wall of the prismatic groove 321. The rope winding roller 32 is provided with an annular groove 325 near one end of the spring 42, and one end of the spring 42 is fixedly connected to the outer wall of the elastic rod 31. The spring 42 makes one end inserted into the annular groove 325, and the spring 42 is in a compressed state.

[0045] Reference Figure 3 The outer wall of the rope winding roller 32 is fixedly connected with a connecting ring 323, and the connecting ring 323 can be embedded in the annular groove pre-opened on the outer wall of the rope winding roller 32. The outer wall of the connecting ring 323 is fixedly connected with a connecting piece 324.

[0046] When the bellows are connected, the operator holds the connecting piece 324 and pulls the connecting piece 324 away from the prismatic platform 41. The connecting piece 324 drives the rope winding roller 32 to move along the length direction of the connecting rod 43 and away from the prismatic platform 41 through the connecting ring 323, and at the same time compresses the spring 42, so that the prismatic platform 41 is disengaged from the prismatic groove 321; the operator then rotates the connecting piece 324 to drive the rope winding roller 32 to rotate and reel in the rope, so that the two sections of the rope 33 are wound in the corresponding rope reeling grooves 322, and the rope 33 exerts tension on both ends of the elastic rod 31 The force causes the two ends of the elastic rod 31 to elastically open. When the elastic rod 31 opens, the electrode rod 23 is driven to move toward the outside of the electric fusion pipe fitting 1 through the cooperation between the waist-shaped groove 311 and the matching groove 231. At the same time, the electrode rod 23 moves in the waist-shaped groove 311. The movement of the electrode rod 23 drives the first curved plate 21 and the second curved plate 22 to move and insert into the installation groove 11. Then, the tension on the connecting piece 324 is removed. The elastic force of the spring 42 pushes the rope winding roller 32 to move along the length direction of the connecting rod 43 close to the prismatic platform 41, so that the prismatic platform 41 is inserted into the prismatic groove 321.

[0047] When the first and second curved plates 21 and 22 are in contact with each other, the two ends of the first and second curved plates 21 and 22 are in contact with each other.

[0048] Reference Figure 1 The elastic rod 31 is rotatably connected to guide wheels 312 at both ends. The pull rope 33 is wound around the corresponding guide wheels 312. The connection between the pull rope 33 and the elastic rod 31 is perpendicular to the tangent of the corresponding position on the outer wall of the elastic rod 31. The provision of the guide wheels 312 ensures that the direction of the pulling force exerted by the pull rope 33 on the outer wall of the elastic rod 31 is perpendicular to the tangent of the corresponding position on the outer wall of the elastic rod 31. This reduces the force component generated by the pull rope 33 on the elastic rod 31 in other directions, increases the actual power of the pulling force, and makes pulling the elastic rod 31 by the pull rope 33 more labor-saving.

[0049] Reference Figure 1 The outer wall of the elastic rod 31 is connected to a number of positioning rings 313, evenly distributed at both ends of the rope winding roller 32. The two sections of the pull rope 33 pass through corresponding positioning rings 313. The positioning rings 313 allow the pull rope 33 to bend along the length of the outer wall of the elastic rod 31 to adapt to the shape of the outer wall of the elastic rod 31, thereby reducing the tension of the pull rope 33 between the rope winding roller 32 and the elastic rod 31 and reducing the impact of the elastic rope position on the operator's operation.

[0050] The implementation principle of a convenient bellows connection joint and an electric fusion method in the embodiment of the present application is as follows:

[0051] When the bellows are connected, the operator holds the connecting piece 324 and pulls the connecting piece 324 away from the prismatic platform 41. The connecting piece 324 drives the rope winding roller 32 to move along the length direction of the connecting rod 43 and away from the prismatic platform 41 through the connecting ring 323, and at the same time compresses the spring 42, so that the prismatic platform 41 is disengaged from the prismatic groove 321; the operator then rotates the connecting piece 324 to drive the rope winding roller 32 to rotate and reel in the rope, so that the two sections of the rope 33 are wound in the corresponding rope reeling grooves 322, and the rope 33 exerts tension on both ends of the elastic rod 31 The force causes the two ends of the elastic rod 31 to elastically open. When the elastic rod 31 opens, the electrode rod 23 is driven to move toward the outside of the electric fusion pipe fitting 1 through the cooperation between the waist-shaped groove 311 and the matching groove 231. At the same time, the electrode rod 23 moves in the waist-shaped groove 311. The movement of the electrode rod 23 drives the first curved plate 21 and the second curved plate 22 to move and insert into the installation groove 11. Then, the tension on the connecting piece 324 is removed. The elastic force of the spring 42 pushes the rope winding roller 32 to move along the length direction of the connecting rod 43 close to the prismatic platform 41, so that the prismatic platform 41 is inserted into the prismatic groove 321.

[0052] When the first and second curved plates 21 and 22 are in contact with each other, the two ends of the first and second curved plates 21 and 22 are in contact with each other. The opening of the mounting groove 11, the adaptive arrangement of the first curved plate 21 and the second curved plate 22 with the wall of the corrugated pipe, and the movable arrangement of the electrode rod 23 allow the corrugated pipe to be stably inserted into the electric fusion pipe fitting 1, and the first curved plate 21 and the second curved plate 22 can be adapted to fit the wall of the corrugated pipe, so that the electric fusion method of a general flat-wall pipe body can be used for the connection of the corrugated pipe, reducing the use of heat shrink sleeves. The structural strength of the electric fusion pipe fitting 1 is higher than that of the heat shrink tube, thereby improving the stability of the corrugated pipe connection.

[0053] The present application also discloses an electric fusion method for a convenient bellows connection joint:

[0054] Remove the limit of the rope winding roller 32 by the limiting component 4, rotate the rope winding roller 32 to reel in the two sections of the pull rope 33, so that the pull rope 33 applies tension to the two ends of the elastic rod 31, so that the two ends of the elastic rod 31 are elastically opened. When the elastic rod 31 is opened, the electrode rod 23 is driven to move to the outside of the electric fusion pipe fitting 1 through the cooperation of the waist-shaped groove 311 and the matching groove 231. At the same time, the electrode rod 23 moves in the waist-shaped groove 311. The movement of the electrode rod 23 drives the first arc plate 21 and the second arc plate 22 to move and insert into the installation groove 11, and then the limiting component 4 limits the rope winding roller 32.

[0055] Insert the ends of the two sections of the corrugated pipe into the electric fusion pipe fitting 1 from both ends, so that the ends of the two sections of the corrugated pipe are in contact with each other, and the contact point of the two sections of the corrugated pipe is located between the first arc plate 21 and the second arc plate 22; at this time, remove the limit of the rope winding roller 32 of the limit component 4 again, rotate the rope winding roller 32 to release the two sections of the rope 33, and the elastic rod 31 contracts under the action of its own elastic force, and drives the electrode rod 23 to move toward the inside of the electric fusion pipe fitting 1, and the movement of the electrode rod 23 drives the first section of the rope winding roller 32 to release the two sections of the rope 33. An arc-shaped plate 21 and a second arc-shaped plate 22 are removed from the mounting groove 11 and fastened to the joint of the two sections of the corrugated pipe. The two ends of the first arc-shaped plate 21 are simultaneously in contact with the two ends of the second arc-shaped plate 22. At this time, the two electrode rods 23 are energized to energize the first arc-shaped plate 21 and the second arc-shaped plate 22, causing the first arc-shaped plate 21 and the second arc-shaped plate 22 to heat up and melt the joint of the two sections of the corrugated pipe. After the corrugated pipe is melted, the power is turned off, and the connection of the two sections of the corrugated pipe is achieved.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A convenient corrugated pipe connection joint, comprising an electric fusion pipe fitting (1), characterized in that: The inner wall of the electric fusion pipe (1) is provided with a mounting groove (11) along the circumference of the electric fusion pipe (1), and an electric fusion ring (2) is provided in the mounting groove (11). The ring arm of the electric fusion ring (2) is configured to be adapted to the wall of the corrugated pipe. The electric fusion ring (2) comprises a first arc plate (21) and a second arc plate (22). The first arc plate (21) and the second arc plate (22) are both located in the mounting groove (11) and can move in the mounting groove (11) along the radial direction of the electric fusion pipe (1); the side walls of the first arc plate (21) and the second arc plate (22) are both connected with an electrode rod (23), one end of the electrode rod (23) passes through the wall of the electric fusion pipe (1) and extends from the outer wall of the electric fusion pipe (1). The outer wall of the fusion pipe (1) is provided with a driving assembly (3) for driving the electrode rod (23) to move; the driving assembly (3) comprises an elastic rod (31), a rope roller (32) and two sections of pull rope (33); the elastic rod (31) is a semicircular rod, the middle part of the elastic rod (31) is fixedly connected to the outer wall and is simultaneously buckled on the outer wall of the electric fusion pipe (1); the rope roller (32) is rotatably connected to the middle part of the elastic rod (31), the two sections of the pull rope (33) are both wound around the rope roller (32), and the ends of the two sections of the pull rope (33) away from the rope roller (32) are respectively connected to the two sections of the elastic rod (31); the elastic rod (31) is provided with a limiting assembly (4) for limiting the rope roller (32); The elastic rod (31) has waist-shaped grooves (311) at both ends, and the two electrode rods (23) pass through the corresponding waist-shaped grooves (311) respectively. The side walls of the electrode rods (23) have matching grooves (231), and the positions of the elastic rods (311) are inserted into the corresponding matching grooves (231). The limiting assembly (4) includes a prism-shaped platform (41), a spring (42), a connecting rod (43) and a limiting plate (44). The connecting rod (43) is connected to the middle part of the outer wall of the elastic rod (31), and the connecting rod (43) passes through the rope roller (32) and The rope roller (32) extends from the end wall of the rope roller (32), the limiting plate (44) is connected to one end of the connecting rod (43) extending from the rope roller (32), the prismatic platform (41) is connected to the side wall of the limiting plate (44), the end wall of the rope roller (32) is provided with a prismatic groove (321) adapted to the prismatic platform (41), the spring (42) is connected to the outer wall of the elastic rod (31), the rope roller (32) is provided with an annular groove (325) for inserting the spring (42) at one end close to the spring (42), and the spring (42) is used to push the end wall of the rope roller (32) to stick to the limiting plate (44).

2. The portable bellows connector according to claim 1, characterized in that: The outer side wall of the rope winding roller (32) is connected to a connecting ring (323), and the outer side wall of the connecting ring (323) is connected to a connecting piece (324).

3. The portable bellows connector according to claim 1, characterized in that: The outer wall of the rope winding roller (32) is provided with two rope receiving grooves (322), the rope receiving grooves (322) are provided along the circumference of the outer wall of the rope winding roller (32), and the two sections of the pull rope (33) are respectively wound in the corresponding rope receiving grooves (322).

4. The portable bellows connector according to claim 1, characterized in that: The outer wall of the electrofusion pipe (1) is provided with a receiving groove (12) for inserting and installing the elastic rod (31), the two electrode rods (23) are located in the receiving groove (12), and the middle part of the elastic rod (31) is connected to the inner wall of the receiving groove (12).

5. The portable bellows connector according to claim 1, characterized in that: The two ends of the elastic rod (31) are rotatably connected to guide wheels (312), the pull rope (33) is wound around the corresponding guide wheels (312), and the pull rope (33) is perpendicular to the tangent of the corresponding position of the outer wall of the elastic rod (31) at the connection with the elastic rod (31).

6. The portable bellows connector according to claim 1, characterized in that: The outer side wall of the elastic rod (31) is connected to a plurality of positioning rings (313), and the plurality of positioning rings (313) are evenly distributed at both ends of the rope winding roller (32), and the two sections of the pull rope (33) pass through the corresponding positioning rings (313) respectively.

7. An electric fusion method for the portable corrugated pipe connection joint of claim 1, characterized in that: The limiting component (4) on the rope winding roller (32) is removed, and the rope winding roller (32) is rotated to reel in the two sections of the pull rope (33), so that the pull rope (33) applies a pulling force to the two ends of the elastic rod (31), so that the two ends of the elastic rod (31) are elastically opened; When the elastic rod (31) is opened, the electrode rod (23) is driven to move toward the outside of the electric melting pipe (1). At the same time, the electrode rod (23) moves in the waist-shaped groove (311). The movement of the electrode rod (23) drives the first arc plate (21) and the second arc plate (22) to move and insert into the installation groove (11), and then the limiting component (4) limits the rope winding roller (32). Insert the ends of the two sections of the corrugated pipe into the electric fusion pipe fitting (1) from both ends thereof, so that the ends of the two sections of the corrugated pipe are in contact with each other, and the contact portion of the two sections of the corrugated pipe is located between the first curved plate (21) and the second curved plate (22); The limit of the rope winding roller (32) by the limit assembly (4) is removed again, and the rope winding roller (32) is rotated to release the two sections of the pull rope (33). The elastic rod (31) contracts under the action of its own elastic force and drives the electrode rod (23) to move toward the inside of the electric fusion pipe (1). The movement of the electrode rod (23) drives the first curved plate (21) and the second curved plate (22) to move out of the installation groove (11) and fasten them at the junction of the two sections of the corrugated pipe. The two ends of the first curved plate (21) are simultaneously attached to the two ends of the second curved plate (22); By energizing the two electrode rods (23), the first arc plate (21) and the second arc plate (22) can be energized, causing the first arc plate (21) and the second arc plate (22) to generate heat, thereby melting the joints of the two sections of the corrugated pipes. After the corrugated pipes are melted, the power is turned off, thereby achieving connection of the two sections of the corrugated pipes.

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