Electric smelting type corrugated pipe connecting joint

Abstract

The utility model discloses an electric melting type corrugated pipe connector which comprises two connecting plates, two sets of clamping assemblies and two arc-shaped electric heating pieces, the two connecting plates are oppositely arranged in the first direction and rotationally connected with each other, and the connecting plates have the freedom degree of rotating around the second direction; the first direction is the same as the thickness direction of the connecting plate, and the second direction is perpendicular to the first direction; the two clamping assemblies are oppositely arranged between the two connecting plates in the second direction and are in sliding connection with the two connecting plates, the clamping assemblies have the freedom degree of sliding in the second direction, and the electric smelting type corrugated pipe connector fixes a corrugated pipe to be clamped through the clamping assemblies; the two arc-shaped electric heating pieces are connected to the sides, close to each other, of the two connecting plates in a one-to-one correspondence mode, and the two arc-shaped electric heating pieces are located on the periphery of the moving path of the two corrugated pipes to be clamped. The device is simple in overall operation, small and compact in structure and convenient to carry and transfer.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection, and in particular to an electric fusion type corrugated pipe connection joint. Background Art

[0002] Bellows are widely used in petrochemical, instrumentation, aerospace, chemical, electric power, cement, metallurgy and other industries. It is a cylindrical thin-walled corrugated shell with multiple transverse corrugations. The bellows is elastic and can produce displacement under pressure, axial force, transverse force or bending moment.

[0003] When the corrugated pipe is hot-melt-jointed, a hot-melt-joint device needs to be used. The existing hot-melt-joint device has a large overall structure, is complex to operate, and is inconvenient to use. Utility Model Content

[0004] The main purpose of the present application is to provide an electric fusion type corrugated pipe connection joint, aiming to solve the problem that the existing hot-melt butt joint device has a large overall structure, is complex to operate and is inconvenient to use.

[0005] To achieve the above-mentioned purpose, the present application provides an electric fusion type corrugated pipe connection joint, which includes two connecting plates, two groups of clamping components and two arc-shaped electric heating plates. The two connecting plates are arranged relative to each other in a first direction and are rotatably connected to each other. The connecting plates have the freedom to rotate around a second direction. The first direction is the same as the thickness direction of the connecting plates, and the second direction is perpendicular to the first direction; two groups of clamping components are arranged relative to each other between the two connecting plates in the second direction and are slidably connected to the two connecting plates. The clamping components have the freedom to slide along the second direction, and the electric fusion type corrugated pipe connection joint fixes the corrugated pipe to be clamped through the clamping components; the two arc-shaped electric heating plates are connected one by one to the side of the two connecting plates close to each other, and the two arc-shaped electric heating plates are located on the periphery of the moving path of the two corrugated pipes to be clamped.

[0006] Optionally, the clamping assembly includes two sliding plates and a plurality of snap-in plates, the two sliding plates are arranged one-to-one between the two connecting plates and are slidably connected to the corresponding connecting plates, and the sliding plates extend out of the connecting plates; the plurality of snap-in plates are arranged at intervals on the side where the two sliding plates are close to each other in the second direction, the snap-in plates on the two sliding plates correspond one-to-one in the first direction, and the corresponding two snap-in plates are provided with an arc-surface recessed structure, which fits with the outer periphery of the corrugated tube to be clamped so as to clamp the corrugated tube to be clamped.

[0007] Optionally, the fitting area between the arc-surface recessed structure on the clamping plate and the corrugated pipe to be clamped is located at the trough of the corrugated pipe to be clamped.

[0008] Optionally, the connecting plate and the sliding plate are both semicircular arc plates, the two connecting plates enclose a cylindrical chamber, the sliding plate is located on the inner circumference of the connecting plate, and the clamping plate is located on the inner circumference of the sliding plate.

[0009] Optionally, the two connecting plates are both made of transparent material.

[0010] Optionally, the electric fusion corrugated pipe connection joint also includes a driving assembly, which is arranged on the outer periphery of one of the connecting plates and connected to the corresponding two sliding plates, and the driving assembly drives the two sliding plates to approach each other along the second direction in response to the driving force.

[0011] Optionally, the driving assembly includes two connecting blocks, a fixed block and a double-headed threaded rod, the two connecting blocks are fixed to the outer circumference of the two sliding plates one by one; the fixed block is fixed to the outer circumference of the connecting plate; the double-headed threaded rod passes through the two connecting blocks and the fixed block, the axial direction of the double-headed threaded rod is the same as the second direction and is threadedly connected to the two connecting blocks, the double-headed threaded rod is rotatably connected to the fixed block and has the freedom to rotate around its own axial direction; wherein the threaded areas at both ends of the double-headed threaded rod have opposite rotation directions.

[0012] Optionally, the drive assembly also includes a rotating shaft, a driving bevel wheel, a driven bevel wheel and a knob, the rotating shaft is rotatably connected to the side of the fixed block away from the connecting plate and its axial direction is perpendicular to the second direction; the driving bevel wheel is sleeved on the outer periphery of the rotating shaft; the driven bevel wheel is sleeved on the outer periphery of the double-headed threaded rod and meshes with the driving bevel wheel; the knob is fixed to one end of the rotating shaft away from the fixed block.

[0013] Optionally, the electric fusion corrugated pipe connection joint also includes a hinge and two connecting parts, the hinge connecting the two connecting plates at their peripheries; the two connecting parts are fixed one by one to the side of the two connecting plates away from the hinge, and the two connecting parts are connected by bolts.

[0014] Optionally, the electric fusion corrugated pipe connecting joint further includes a plurality of supporting legs and a handle, wherein the plurality of supporting legs are fixed to the periphery of the connecting plate away from the driving assembly; and the handle is fixed to the periphery of the connecting plate connected to the driving assembly.

[0015] The two clamping assemblies are then rotated about the second direction so that the two connecting plates are relatively positioned in the first direction. At this time, the two clamping assemblies can be pushed close to each other, and the two clamping assemblies drive the two clamping assemblies to be clamped close to each other. At this time, the ends of the two clamping assemblies that are close to each other are both located between the two arc-shaped electric heating plates. The two arc-shaped electric heating plates are started to heat and preliminarily melt one end of the two bellows to be clamped. The two sets of clamping assemblies are pushed close to each other again so that the ends of the two bellows that are close to each other are in contact with each other and connected. The two arc-shaped electric heating plates are closed. After the bellows to be clamped are cooled, the connecting plate is opened, and the butted bellows are removed through the two sets of clamping assemblies. The electric bellows connecting joint is simple to operate as a whole, has a small and compact structure, and is easy to carry and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of an electric fusion type corrugated pipe connection joint provided in an embodiment of the present application when in use;

[0017] Figure 2 for Figure 1 A structural schematic diagram of another perspective of the embodiment;

[0018] Figure 3 A schematic diagram of the structure of an electric fusion type corrugated pipe connection joint after it is opened provided in an embodiment of the present application;

[0019] Figure 4 for Figure 1 A magnified view of the structure in the middle.

[0020] In the figure: 1, connecting plate; 11, hinge; 12, connecting part; 13, supporting leg; 14, handle; 21, sliding plate; 22, clamping plate; 3, bellows to be clamped; 4, arc-shaped electric heating plate; 51, connecting block; 52, fixing block; 53, double-headed threaded rod; 54, rotating shaft; 55, active cone wheel; 56, driven cone wheel; 57, knob.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] refer to Figure 1 to Figure 4 The embodiment of the present application provides an electric fusion type bellows connection joint, which may include two connecting plates 1, two groups of clamping assemblies and two arc-shaped electric heating plates 4. The two connecting plates 1 are arranged relative to each other in a first direction and are rotatably connected to each other. The connecting plates 1 have the freedom to rotate around a second direction. The first direction is the same as the thickness direction of the connecting plates 1, and the second direction is perpendicular to the first direction; the two groups of clamping assemblies are arranged relative to each other between the two connecting plates 1 in the second direction and are slidably connected to the two connecting plates 1. The clamping assemblies have the freedom to slide along the second direction. The electric fusion type bellows connection joint fixes the bellows 3 to be clamped by the clamping assemblies; the two arc-shaped electric heating plates 4 are connected one by one to the side of the two connecting plates 1 close to each other, and the two arc-shaped electric heating plates 4 are located on the periphery of the moving path of the two bellows 3 to be clamped.

[0027] The embodiment of the present application proposes an electric fusion type corrugated pipe connection joint. When in use, a connecting plate 1 is rotated about a second direction to open the electric fusion type corrugated pipe connection joint, and then two corrugated pipes 3 to be clamped are connected through two groups of clamping components, and then the connecting plate 1 is rotated about the second direction so that the two connecting plates 1 are positioned relative to each other in the first direction. At this time, the two groups of clamping components can be pushed closer to each other, and the two groups of clamping components drive the two corrugated pipes 3 to be clamped closer to each other. At this time, the ends of the two corrugated pipes 3 to be clamped that are close to each other are both in position. Between the two arc-shaped electric heating plates 4, start the two arc-shaped electric heating plates 4 to heat and initially melt one end of the two bellows 3 to be clamped, push the two groups of clamping components closer to each other again to make the ends of the two bellows 3 to be clamped close to each other touch and connect, close the two arc-shaped electric heating plates 4, open the connecting plate 1 after the clamped bellows 3 cools down, and remove the docked bellows through the two groups of clamping components. The overall operation of the electric fusion bellows connection joint is simple, the structure is small and compact, and it is easy to carry and transport.

[0028] Specifically, Figure 1 As shown, the first direction is the X direction, the second direction is the Y direction, the connecting plate 1 can be a rectangular plate, and the electric fusion corrugated pipe connecting joint can keep the first direction X the same as the gravity direction when in use, so that it is more convenient to rotate the connecting plate 1 located at the top.

[0029] It should be understood that if Figure 1 As shown, when the two connecting plates 1 are opposite to each other in the first direction X, the electric fusion type corrugated pipe connection joint is in a closed state; Figure 3 As shown, after the connecting plate 1 located at the top is rotated, the electrofusion type corrugated pipe connecting joint is in a closed state, where it can be rotated 180°.

[0030] It should be noted that, taking an arc-shaped electric heater 4 as an example, both ends of the arc-shaped electric heater 4 are connected with leads, which pass through the corresponding connecting plate 1 and are connected to an external power supply, and the same is true for another arc-shaped electric heater 4.

[0031] Furthermore, a battery can be arranged on a side of a connecting plate 1 away from the other connecting plate 1, and the arc-shaped electric heating plate 4 can be connected to the battery, which can make the use of the electric fusion type corrugated pipe connection joint more convenient.

[0032] Among them, both connecting plates 1 are made of transparent material, so that the position of each bellows 3 to be clamped can be observed during the process of pushing the clamping assembly to move, so as to control the ends of each bellows 3 to be clamped that are close to each other to be located between the two arc-shaped electric heaters 4.

[0033] It should be noted that the two arc-shaped electric heating plates 4 are located on the periphery of the moving path of the two bellows 3 to be clamped, so that when the two bellows 3 to be clamped move along the second direction Y, the ends of the two bellows 3 to be clamped that are close to each other can be located between the two arc-shaped electric heating plates 4.

[0034] refer to Figure 3 In an exemplary embodiment, the clamping assembly may include two sliding plates 21 and a plurality of snap-in plates 22. The two sliding plates 21 are arranged one-to-one between the two connecting plates 1 and are slidably connected to the corresponding connecting plates 1. The sliding plates 21 extend out of the connecting plates 1. The plurality of snap-in plates 22 are arranged at intervals on the side where the two sliding plates 21 are close to each other in the second direction Y. The snap-in plates 22 on the two sliding plates 21 correspond one-to-one in the first direction X. The corresponding two snap-in plates 22 are both provided with an arc-surface recessed structure, which fits the outer periphery of the corrugated tube 3 to be clamped so as to clamp the corrugated tube 3 to be clamped.

[0035] Specifically, when the electric fusion bellows connection joint is opened, the bellows 3 to be clamped is placed on a sliding plate 21. At this time, when the electric fusion bellows connection joint is closed, the two sliding plates 21 are positioned relative to each other in the first direction X, and the corresponding two clamping plates 22 clamp and fix the bellows 3 to be clamped through the arc-surface recessed structure. After that, the bellows 3 to be clamped can be driven to move along the second direction Y by pushing the sliding plate 21.

[0036] It should be understood that the sliding plate 21 extends out of the connecting plate 1 , so that the sliding plate 21 can be pushed or pulled by pushing or pulling the end of the sliding plate 21 outside the connecting plate 1 , which is more convenient to use.

[0037] Further, such as Figure 3 As shown, the arc-surface recessed structure on the clamping plate 22 and the fitting area of ​​the bellows 3 to be clamped are located at the trough of the bellows 3 to be clamped, that is, the clamping plate 22 is clamped into the trough, so when the sliding plate 21 is pushed or pulled along the second direction Y, the sliding plate 21 drives the clamping plate 22 to move along the second direction Y, and the connection between the crest and the trough of the bellows 3 to be clamped contacts the clamping plate 22, then when the clamping plate 22 moves, it will drive the bellows 3 to be clamped to move synchronously along the second direction Y.

[0038] refer to Figure 1 to Figure 3 In an exemplary embodiment, the connecting plate 1 and the sliding plate 21 are both semicircular arc plates. The two connecting plates 1 form a cylindrical chamber. The sliding plate 21 is located on the inner periphery of the connecting plate 1 , and the clamping plate 22 is located on the inner periphery of the sliding plate 21 .

[0039] Specifically, Figure 1 to Figure 3The connecting plate 1 and the sliding plate 21 are both semicircular plates. The two connecting plates 1 have two contact areas. The sliding plate 21 is located at the inner periphery of the connecting plate 1, and the corrugated pipe 3 to be clamped is located at the inner periphery of the sliding plate 21. Compared with the solution of using a rectangular connecting plate 1, the overall structure of the electric fusion corrugated pipe connection joint here is further reduced, and it is more convenient to carry and transport.

[0040] For further reference, Figure 1 and Figure 3 The electric fusion bellows connection joint may also include a hinge 11 and two connection parts 12. The hinge 11 connects the two connection plates 1 at their peripheries; the two connection parts 12 are fixed one by one to the side of the two connection plates 1 away from the hinge 11, and the two connection parts 12 are connected by bolts. When opening the electric fusion bellows connection joint, the bolts are removed to separate the two connection parts 12, and the upper connection plate 1 is rotated around the hinge 11; when closing the electric fusion bellows connection joint, the upper connection plate 1 is rotated around the hinge 11 so that the positions of the two connection plates 1 are opposite to each other in the first direction X, and the bolts are tightened to connect the two connection parts 12 together.

[0041] refer to Figure 1 , Figure 2 and Figure 4 In an exemplary embodiment, the electric fusion corrugated pipe connection joint may also include a driving assembly, which is arranged on the periphery of a connecting plate 1 and connected to the corresponding two sliding plates 21. The driving assembly drives the two sliding plates 21 to approach each other along the second direction Y in response to the driving force; the driving assembly may include two connecting blocks 51, a fixed block 52 and a double-headed threaded rod 53, the two connecting blocks 51 are fixed to the periphery of the two sliding plates 21 one by one; the fixed block 52 is fixed to the periphery of the connecting plate 1; the double-headed threaded rod 53 passes through the two connecting blocks 51 and the fixed block 52, the axial direction of the double-headed threaded rod 53 is the same as the second direction Y and is threadedly connected to the two connecting blocks 51, the double-headed threaded rod 53 is rotatably connected to the fixed block 52 and has the freedom to rotate around its own axial direction; wherein, the threaded areas at both ends of the double-headed threaded rod 53 have opposite rotation directions.

[0042] Specifically, the threaded areas at the two ends of the double-headed threaded rod 53 rotate in opposite directions, and the two threaded areas are respectively threadedly connected to the two connecting blocks 51, and the two connecting blocks 51 cannot rotate and can only move along the axial direction of the double-headed threaded rod 53. When the double-headed threaded rod 53 is rotated, the double-headed threaded rod 53 drives the two connecting blocks 51 to approach or move away from each other, and the two connecting blocks 51 respectively drive the two sliding plates 21 connected to the corresponding connecting plate 1 to approach or move away from each other, then the above-mentioned two sliding plates 21 will cooperate with the bellows 3 to be clamped through the clamping plate 22 to further drive the other two sliding plates 21 to approach or move away from each other, even if the two sets of clamping components and the two bellows 3 to be clamped are approached or moved away from each other for subsequent operations.

[0043] The fixing block 52 is located in the middle area of ​​the double-threaded rod 53 , so that the fixing block 52 and the two connecting blocks 51 jointly support the double-threaded rod 53 to rotate more stably.

[0044] refer to Figure 4 In an exemplary embodiment, the driving assembly may further include a rotating shaft 54, a driving bevel wheel 55, a driven bevel wheel 56 and a knob 57. The rotating shaft 54 ​​is rotatably connected to a side of the fixed block 52 away from the connecting plate 1 and its axial direction is perpendicular to the second direction Y; the driving bevel wheel 55 is sleeved on the outer periphery of the rotating shaft 54; the driven bevel wheel 56 is sleeved on the outer periphery of the double-headed threaded rod 53 and meshes with the driving bevel wheel 55; the knob 57 is fixed to one end of the rotating shaft 54 ​​away from the fixed block 52.

[0045] Specifically, Figure 4 As shown, rotating the knob 57 drives the rotating shaft 54 ​​to rotate around its own axial direction, and the rotating shaft 54 ​​drives the active bevel wheel 55 to rotate synchronously. The active bevel wheel 55 is meshed with the driven bevel wheel 56. When the active bevel wheel 55 rotates, it drives the driven bevel wheel 56 to rotate around the axial direction of the double-headed threaded rod 53. The driven bevel wheel 56 further drives the double-headed threaded rod 53 to rotate. In this way, the double-headed threaded rod 53 can be driven to rotate by rotating the knob 57; Figure 2 As shown, when the double-headed threaded rod 53 is rotated around the axial direction of the double-headed threaded rod 53, if the distance between the double-headed threaded rod 53 and the corresponding connecting plate 1 is relatively close, the rotation of the double-headed threaded rod 53 will be blocked by the connecting plate 1, and it is not convenient to rotate the double-headed threaded rod 53; if the distance between the double-headed threaded rod 53 and the corresponding connecting plate 1 is relatively far, the overall volume of the electric fusion type corrugated pipe connecting joint will increase again. Therefore, by rotating the knob 57 around the axial direction of the rotating shaft 54, the double-headed threaded rod 53 is driven to rotate. Even if the overall structure of the electric fusion type corrugated pipe connecting joint is compact and small in volume, it is conducive to rotating the knob 57, and the process of rotating the knob 57 will not be affected by the connecting plate 1.

[0046] refer to Figure 1 In an exemplary embodiment, the electric fusion corrugated pipe connection joint may also include a plurality of support legs 13 and a handle 14, wherein the plurality of support legs 13 are fixed to the periphery of the connection plate 1 away from the drive assembly; and the handle 14 is fixed to the periphery of the connection plate 1 connected to the drive assembly.

[0047] Specifically, Figure 1As shown, the support leg 13 is connected to the connecting plate 1 located below, and the handle 14 is connected to the connecting plate 1 located above. When used in this way, the electric fusion type corrugated pipe connection joint can be placed on the ground and supported by the support leg 13. At this time, the first direction X can be the same as the gravity direction. When opening or closing the electric fusion type corrugated pipe connection joint, the handle 14 can be held tightly to drive the corresponding connecting plate 1 to rotate. At the same time, when the electric fusion type corrugated pipe connection joint is in a closed state, the handle 14 can be used to lift the entire electric fusion type corrugated pipe connection joint for transfer, which makes transportation more convenient.

[0048] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electric fusion type corrugated pipe connection joint, characterized in that: include: Two connecting plates (1) are arranged opposite to each other in a first direction and are rotatably connected to each other, the connecting plates (1) having a degree of freedom to rotate about a second direction, the first direction being the same as a thickness direction of the connecting plates (1), and the second direction being perpendicular to the first direction; Two groups of clamping assemblies are arranged relatively between the two connecting plates (1) in the second direction and are slidably connected to the two connecting plates (1), the clamping assemblies have the freedom to slide along the second direction, and the electrofusion type corrugated pipe connection joint fixes the corrugated pipe (3) to be clamped through the clamping assemblies; Two arc-shaped electric heating plates (4) are connected to the sides of the two connecting plates (1) close to each other in a one-to-one correspondence, and the two arc-shaped electric heating plates (4) are located on the periphery of the moving path of the two corrugated pipes (3) to be clamped.

2. The electric fusion type corrugated pipe connection joint according to claim 1, characterized in that: The clamping assembly comprises: Two sliding plates (21) are arranged one by one between the two connecting plates (1) and are slidably connected to the corresponding connecting plates (1), and the sliding plates (21) extend out of the connecting plates (1); A plurality of clamping plates (22) are arranged at intervals on a side where the two sliding plates (21) are close to each other in the second direction, the clamping plates (22) on the two sliding plates (21) correspond to each other in the first direction, and the two corresponding clamping plates (22) are both provided with an arc-surface recessed structure, and the arc-surface recessed structure fits with the outer periphery of the corrugated tube (3) to be clamped so as to clamp the corrugated tube (3) to be clamped.

3. The electric fusion type corrugated pipe connection joint according to claim 2, characterized in that: The fitting area between the arc-surface recessed structure on the clamping plate (22) and the corrugated tube (3) to be clamped is located at the trough of the corrugated tube (3) to be clamped.

4. The electric fusion type corrugated pipe connection joint according to claim 2, characterized in that: The connecting plate (1) and the sliding plate (21) are both semicircular arc-shaped plates. The two connecting plates (1) enclose a cylindrical chamber. The sliding plate (21) is located on the inner periphery of the connecting plate (1), and the clamping plate (22) is located on the inner periphery of the sliding plate (21).

5. The electric fusion type corrugated pipe connection joint according to claim 1, characterized in that: The two connecting plates (1) are both made of transparent material.

6. The electric fusion type corrugated pipe connection joint according to claim 4, characterized in that: The electrofusion type corrugated pipe connection joint also includes: A driving component is arranged on the outer periphery of one of the connecting plates (1) and is connected to the corresponding two sliding plates (21). The driving component drives the two sliding plates (21) to move closer to each other along the second direction in response to a driving force.

7. The electrofusion type corrugated pipe connection joint according to claim 6, characterized in that: The drive assembly comprises: Two connecting blocks (51) are fixed to the outer peripheries of the two sliding plates (21) in a one-to-one correspondence; A fixing block (52) fixed to the outer periphery of the connecting plate (1); a double-headed threaded rod (53) passing through the two connecting blocks (51) and the fixed block (52); the axial direction of the double-headed threaded rod (53) is the same as the second direction and the double-headed threaded rod (53) is threadedly connected to the two connecting blocks (51); the double-headed threaded rod (53) is rotatably connected to the fixed block (52) and has the freedom to rotate around its own axial direction; Wherein, the threaded areas at both ends of the double-threaded rod (53) have opposite rotation directions.

8. The electric fusion type corrugated pipe connection joint according to claim 7, characterized in that: The drive assembly also includes: A rotating shaft (54) rotatably connected to a side of the fixed block (52) away from the connecting plate (1) and having an axial direction perpendicular to the second direction; A driving cone wheel (55) is sleeved on the outer circumference of the rotating shaft (54); A driven cone wheel (56) is sleeved on the outer circumference of the double-threaded rod (53) and meshes with the driving cone wheel (55); The knob (57) is fixed to one end of the rotating shaft (54) away from the fixing block (52).

9. The electric fusion type corrugated pipe connection joint according to claim 6, characterized in that: The electrofusion type corrugated pipe connection joint also includes: A hinge (11) connecting the two connecting plates (1) at the peripheries of the two connecting plates (1); The two connection parts (12) are fixed one by one to the sides of the two connection plates (1) away from the hinge (11), and the two connection parts (12) are connected by bolts.

10. The electric fusion type corrugated pipe connection joint according to claim 9, characterized in that: The electrofusion type corrugated pipe connection joint also includes: A plurality of support legs (13) fixed to the outer periphery of the connecting plate (1) away from the driving assembly; A handle (14) is fixed to the outer periphery of a connecting plate (1) connected to the driving assembly.

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