Communication pipeline butt joint installation structure and method

Abstract

The invention belongs to the technical field of communication pipeline connection, and particularly provides a communication pipeline butt joint installation structure and method.The communication pipeline butt joint installation structure comprises two clamping units and a connecting pipe, and the two clamping units are installed at the ends of two pipelines respectively and provided with containing grooves used for containing the ends of the connecting pipe. A heating body is arranged in the connecting pipe or on the surface of the connecting pipe, and the heating body is made of a ferromagnetic material and can conduct induction heating in an alternating magnetic field. During installation, the two ends of the connecting pipe are inserted into the two containing grooves correspondingly, the heating body is heated through the external electromagnetic induction heating coil, and heat generated by the heating body melts the connecting pipe. After the two ends of the connecting pipe are melted, the two ends of the connecting pipe and the ends of the pipelines can be hot-melted into a whole under the action of extrusion force applied to the connecting pipe by the clamping unit, and therefore sealing butt joint installation of the two pipelines is completed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of communication pipeline connection, and more particularly relates to a communication pipeline butt joint installation structure and method. BACKGROUND

[0002] A communication pipeline is a pipe material used for protecting optical fiber cables and the like in a communication device, and is usually made of PVC. When the communication pipeline is constructed, multiple PVC pipes are sequentially connected into one. Since the communication pipeline is buried underground, the sealing property of the pipeline connection position needs to be ensured to prevent water, soil and the like from entering the pipeline.

[0003] There are generally two methods for connecting the communication pipeline in the prior art. The first method is hot melt connection, which uses a heating sleeve to heat the connection position of the pipeline to the melting point, and then butt joints the two melted pipelines together. After cooling, a firm connection is formed. The second method is joint connection, which uses a joint to align and connect the connection ports of the two pipelines into one. The joint has a rubber sealing ring inside, which can seal the gap and prevent water from entering the pipeline.

[0004] The above two connection methods have their own advantages and disadvantages. The hot melt connection method does not require additional joints, but requires the design of a socket on the pipeline, which increases the production cost of the pipeline. After heating, the operator needs to butt joint the two pipelines together with force, which is laborious. If the force is small during butt joint, there is a risk of leakage. The joint connection method is more labor-saving, but the joint relies on a rubber sealing ring and other sealing elements to achieve the sealing of the contact surface. The sealing elements will age and cause sealing failure after long-term use, which increases the maintenance cost. SUMMARY

[0005] Based on the above technical problems, the application provides a communication pipeline butt joint installation structure and method to solve the technical problem that the aging of the sealing element in the prior art causes pipeline sealing failure.

[0006] The technical scheme adopted by the application is: In a first aspect, the application provides a communication pipeline butt joint installation structure, comprising: two clamping units, respectively arranged on two pipelines to be butt jointed, the clamping unit having a pipe passing channel for the corresponding pipeline to pass through, and the inner wall of the pipe passing channel being provided with an annular accommodating groove at one end opposite to the other end of the two clamping units; and A connecting pipe is accommodated in the two accommodating grooves, the length of the connecting pipe is greater than the distance between the two pipes to be connected, the inner diameter of the connecting pipe is greater than or equal to the outer diameter of the pipes, and the part of the connecting pipe located in the accommodating groove has a heating body in the wall thickness range or on the inner surface, the heating body is a ferromagnetic material, and the clamping unit can exert a pressing force on the connecting pipe to deform the part of the connecting pipe located in the accommodating groove radially inward.

[0007] In a possible implementation, the clamping unit comprises: Two clamping seats in the form of half-rings, the clamping seats having clamping grooves, the clamping grooves of the two clamping seats being combined to form the pipe passing channel and the accommodating groove, the clamping groove for forming the side wall of the pipe passing channel being provided with a first gasket, the clamping groove for forming the side wall of the accommodating groove being provided with a second gasket, and the first gasket and the second gasket being both in the form of half-circular elastic gaskets; and A connecting bolt passing through one of the clamping seats and threadedly cooperating with the other clamping seat, the connecting bolt being used to provide a pre-tightening force for combining and clamping the two clamping seats to each other.

[0008] In a possible implementation, the clamping unit comprises: A connecting sleeve for being sleeved on the corresponding pipe, the connecting sleeve having the pipe passing channel and the accommodating groove, the two ends of the connecting sleeve each having an external thread segment, and a clamping segment located adjacent to the middle position of the connecting sleeve, the diameter of the clamping segment gradually increasing along the direction from the external thread to the middle position of the connecting sleeve to form a tapered inclined surface; Two moving rings respectively arranged at the two ends of the connecting sleeve, the inner holes of the moving rings being in sliding cooperation with the inclined surfaces of the corresponding clamping segments; and Two locking nuts respectively threadedly cooperating with the two external thread segments, the locking nuts being in abutment with the moving rings.

[0009] In a possible implementation, the heating body is a metal ring, the two ends of the connecting pipe each have the metal ring, and the metal ring is located on the end face or the inner wall of the connecting pipe.

[0010] In a possible implementation, the metal ring is arranged on the inner wall of the connecting pipe and is spaced apart along the axial direction of the connecting pipe, and a plurality of metal rings are arranged.

[0011] In a possible implementation, the connecting pipe is a PVC pipe using ferromagnetic metal particles as a base material.

[0012] In a possible implementation, a plurality of openings are formed at two ends of the connecting pipe, and the openings are arranged at intervals along the circumference of the connecting pipe. One end of the opening penetrates the end of the connecting pipe, and the other end extends along the axial direction of the connecting pipe. The end of the opening is provided with a circular slot penetrating the wall thickness of the connecting pipe. Two adjacent openings are both provided with the heating body.

[0013] Compared with the prior art, the communication pipe butt joint installation structure provided by the application has the following beneficial effects: The communication pipe butt joint installation structure provided by the application comprises two clamping units and a connecting pipe. The two clamping units are respectively arranged at the ends of two pipes and are provided with accommodating grooves for accommodating the ends of the connecting pipe. The connecting pipe is internally or externally provided with a heating body. The heating body is made of ferromagnetic material and can generate heat in an alternating magnetic field. During installation, the two ends of the connecting pipe are respectively inserted into the two accommodating grooves. The heating body is heated by an external electromagnetic induction heating coil, so that the heat generated by the heating body melts the connecting pipe. After the two ends of the connecting pipe are melted, the clamping units apply extrusion force to the connecting pipe, so that the two ends of the connecting pipe are integrally connected to the ends of the pipes by heat melting, thereby completing the sealed butt joint installation of the two pipes.

[0014] The application clamps and extrudes the connecting pipe by using the two clamping units. The ends of the connecting pipe are melted by using the electromagnetic induction heating coil and the heating body, so that the ends of the connecting pipe are integrally connected to the pipes by heat melting. Compared with the existing heat melting connection method, the application does not need to provide a socket on the pipe. The clamping units apply radial extrusion force to the connecting pipe, which is more relaxed and labor-saving. Compared with the existing joint sealing method, the two ends of the connecting pipe are integrally connected to the two pipes by heat melting, so that the problem of sealing failure caused by aging of the sealing ring does not exist, and the durability is better.

[0015] In a second aspect, the application provides a communication pipe butt joint installation method. The method uses the communication pipe butt joint installation structure according to any one of the implementation manners described above and comprises the following steps. Align the two pipes to be connected coaxially, and clean the butt joint ends of the two pipes, so that the two butt joint ends of the pipes are free of oil stains and soil. Install the two clamping units on the two pipes respectively, and place the connecting pipe between the two clamping units, so that the two ends of the connecting pipe are sleeved on the outer portions of the two pipes. At this time, the clamping units are in a released state and do not apply clamping force to the connecting pipe and the pipes. Move the positions of the two clamping units, so that the two ends of the connecting pipe are accommodated in the accommodating grooves of the two clamping units. Adjust the clamping units to a clamped state, so that the clamping units apply extrusion force to the portions of the connecting pipe located in the accommodating grooves. The electromagnetic induction heating coil is sleeved outside the connecting pipe and the clamping unit, the electromagnetic induction heating coil generates an alternating magnetic field to heat the heating bodies at two ends of the connecting pipe, the temperature of the heating bodies is increased, and the heat is conducted to the connecting pipe, the part of the connecting pipe in the accommodating groove is heated to the melting point of the connecting pipe, or the end of the connecting pipe is obviously softened and melted, then the electromagnetic induction heating coil is turned off, and the heating is stopped. Further clamping the clamping unit, the melted end of the connecting pipe and the butt joint end of the pipeline are fused and integrated under the extrusion force, and the sealed butt joint of the two pipelines is completed.

[0016] In a possible implementation, the connecting pipe is a PVC spiral body formed by an acting force along an axis of the PVC spiral body, and the PVC spiral body is made of ferromagnetic metal particles as a base material.

[0017] In a possible implementation, after the step of melting and fusing the end of the connecting pipe and the butt joint end of the pipeline under the extrusion force, a waterproof tape is wound outside the connecting pipe, and a surface protection layer is formed by the waterproof tape.

[0018] The communication pipeline butt joint installation method provided in the application is implemented by using the communication pipeline butt joint installation structure in any of the above implementation manners, and has the same technical effects, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0020] Figure 1 The structure diagram of the communication pipeline butt joint installation structure provided in the application is shown in the first embodiment; Figure 2 The internal sectional view of the communication pipeline butt joint installation structure provided in the application is shown in the first embodiment; Figure 3 The structure diagram of the connecting pipe in the first embodiment of the application is shown in the first embodiment; Figure 4 The structure diagram of the communication pipeline butt joint installation structure provided in the application is shown in the second embodiment; Figure 5 The internal sectional view of the communication pipeline butt joint installation structure provided in the application is shown in the second embodiment; Figure 6 The structure diagram of the connecting pipe in the second embodiment of the application is shown in the second embodiment; Figure 5 The enlarged view of part A in the second embodiment of the application is shown in the second embodiment; Figure 7Assembly exploded view of the communication pipeline butt joint installation structure provided by the present application for the third embodiment; Figure 8 Structure schematic view of the PVC spiral body under pressure in the third embodiment of the present application; Figure 9 Structure schematic view of the communication pipeline butt joint installation structure provided by the present application for the third embodiment; Figure 10 Structure schematic view of the connecting pipe in the fourth embodiment of the present application; Explanation of reference signs: 10, clamping unit; 11, clamping seat; 111, first gasket; 112, second gasket; 12, connecting bolt; 13, connecting sleeve; 131, outer threaded section; 132, clamping section; 1321, inclined surface; 14, moving ring; 15, locking nut; 20, connecting pipe; 21, heating body; 22, PVC spiral body; 23, notch; 24, circular slot; 30, pipeline; DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0024] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple", "several" is two or more, unless otherwise explicitly and specifically limited.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0026] Please see Figures 1 to 10 The communication pipe butt joint installation structure and the communication pipe butt joint installation method provided by the application are described below.

[0027] As Figure 1 and Figure 2 shown, the first embodiment provides a communication pipe butt joint installation structure, which comprises two clamping units 10 and a connecting pipe 20. The two clamping units 10 are respectively arranged on two pipes 30 to be butt jointed. The clamping unit 10 has a pipe passing channel for the corresponding pipe 30 to pass through. The inner wall of the pipe passing channel is provided with an annular accommodating groove at the end of the two clamping units 10 opposite to each other. The two ends of the connecting pipe 20 are respectively accommodated in the two accommodating grooves. The length of the connecting pipe 20 is greater than the distance between the two pipes 30 to be connected. The inner diameter of the connecting pipe 20 is greater than or equal to the outer diameter of the pipe 30. The part of the connecting pipe 20 located in the accommodating groove has a heating body 21 in the wall thickness range or on the inner surface. The heating body 21 is made of ferromagnetic material. The clamping unit 10 can exert an extrusion force on the connecting pipe 20 to make the part of the connecting pipe 20 located in the accommodating groove deform radially inward.

[0028] Compared with the prior art, the communication pipe butt joint installation structure provided by the first embodiment of the application has the following beneficial effects: The communication pipe butt joint installation structure provided by the first embodiment of the application comprises two clamping units 10 and a connecting pipe 20. The two clamping units 10 are respectively arranged at the end portions of the two pipes 30 and have accommodating grooves for accommodating the end portions of the connecting pipe 20. The connecting pipe 20 is internally or externally provided with a heating body 21 made of ferromagnetic material. The heating body 21 can generate heat in an alternating magnetic field. During installation, the two ends of the connecting pipe 20 are respectively inserted into the two accommodating grooves. An external electromagnetic induction heating coil is used to heat the heating body 21, so that the heat generated by the heating body 21 melts the connecting pipe 20. After the two ends of the connecting pipe 20 are melted, the clamping unit 10 can exert an extrusion force on the connecting pipe 20 to make the two ends of the connecting pipe 20 and the end portions of the pipes 30 melt together, thereby completing the sealed butt joint installation of the two pipes 30.

[0029] The embodiment one of the application utilizes two clamping units 10 to clamp and extrude the connecting pipe 20, adopts electromagnetic induction heating coil and heating body 21 to melt the end of the connecting pipe 20, so that it is integrally hot melt connected with the pipe 30. Compared with the existing hot melt connection mode, it is not necessary to set a socket on the pipe 30, and the clamping unit 10 is used to apply radial extrusion force to the connecting pipe 20, which is more relaxed and labor-saving. Compared with the existing joint sealing mode, the two ends of the connecting pipe 20 are integrally hot melt connected with two pipes 30 respectively, and there is no problem of sealing failure caused by aging of the sealing ring, and the durability is better.

[0030] The pipe 30 is a circular PVC communication pipe in the prior art, and the diameter, wall thickness and other parameters of the pipe 30 are not specifically limited, and the user can select them according to the construction requirements. The shape and size of the clamping unit 10 and the connecting pipe 20 are adapted to the pipe 30.

[0031] The connecting pipe 20 is PVC material which is the same or similar to the material of the pipe 30, or is a hot melt plastic material which has a melting point close to that of the pipe 30. In order to ensure that the connecting pipe 20 can be sleeved on the end of the pipe 30, the inner diameter of the connecting pipe 20 should be equal to or slightly larger than the outer diameter of the pipe 30. The part of the end of the connecting pipe 20 which coincides with the pipe 30 has a heating body 21, and the heating body 21 is an iron material which can generate heat under the action of the electromagnetic induction heating coil, thereby melting the PVC plastic adjacent to it, so that the connecting pipe 20 is in a hot melt state.

[0032] The heating body 21 can be fixed in the connecting pipe 20 by bonding, clamping, inlaying and the like, and the outer shape can be annular, sheet-shaped, strip-shaped, bead-shaped, granular and the like. When the size of the heating body 21 is small, a plurality of heating bodies 21 should be uniformly arranged along the circumferential direction of the connecting pipe 20, so as to ensure that the entire circumferential surface of the connecting pipe 20 can be heated to the same degree.

[0033] The heating body 21 can be embedded in the wall thickness range of the connecting pipe 20, or can be arranged on the outer wall or inner wall of the connecting pipe 20. Preferably, the heating body 21 can be arranged on the inner wall of the connecting pipe 20, and the heating body 21 generates heat at the same time and contacts and transfers heat to the connecting pipe 20 and the pipe 30, so that the outer wall of the pipe 30 and the inner wall of the connecting pipe 20 are melted at the same time.

[0034] Alternatively, the connecting pipe 20 can be a PVC pipe material which uses ferromagnetic metal particles as a base material, that is, a certain proportion (such as 18-30%) of iron particles or iron powder is added to the raw materials for producing the connecting pipe 20, and the iron particles or iron powder are the heating body 21.

[0035] The clamping unit 10 is used to clamp on the pipe 30, on one hand, for positioning the connecting pipe 20, and on the other hand, for providing the radial extrusion force for the connecting pipe 20 to extrude the pipe 30 inwardly. The clamping unit 10 can be made of metal or plastic material, when made of plastic material, the melting point of the clamping unit 10 should be higher than the melting point of the connecting pipe 20.

[0036] The clamping unit 10 can be a clamp in the prior art, by tightening the clamp to apply the radial extrusion force to the connecting pipe 20. In order to ensure that the connecting pipe 20 and the pipe 30 are connected firmly, the present application relies on the clamping unit 10 to apply the radial extrusion force to both ends of the connecting pipe 20, forcing the connecting pipe 20 to shrink towards the center, and to be hot melt connected with the end of the pipe 30 as a whole. In order to make the connecting pipe 20 melt and deform as soon as possible, the wall thickness of the connecting pipe 20 should not be too large, for example, it can be 3mm, 4mm, etc.

[0037] Please refer to 1 and Figure 2 In the first embodiment, the clamping unit 10 includes two clamping seats 11 and a connecting bolt 12. The two clamping seats 11 are semi-annular, the clamping seat 11 has a clamping groove, the clamping grooves of the two clamping seats 11 are matched to form a pipe passing channel and a receiving groove, the clamping groove for forming the side wall of the pipe passing channel is provided with a first gasket 111, the clamping groove for forming the side wall of the receiving groove is provided with a second gasket 112, the first gasket 111 and the second gasket 112 are both semi-circular elastic gaskets; the connecting bolt 12 is provided in one of the clamping seats 11 and is threadedly connected with the other clamping seat 11, the connecting bolt 12 is used to provide the pre-tightening force for the two clamping seats 11 to be matched and clamped with each other. The first gasket 111 and the second gasket 112 can be specifically made of elastic materials such as silica gel and rubber.

[0038] In the present embodiment, the clamping unit 10 adopts a split type connecting structure, during installation, first, the two clamping seats 11 are matched and sleeved on the pipe 30, and are connected through the connecting bolt 12, the connecting bolt 12 is not tightened, so that the clamping seat 11 can be moved along the pipe 30, so as to be adjusted to the appropriate position.

[0039] Then, the connecting pipe 20 is sleeved between the two pipes 30, the clamping seat 11 is moved to make the end of the connecting pipe 20 enter the receiving groove by an appropriate length, such as 20mm, 30mm, etc., after the position of the connecting pipe 20 and the clamping seat 11 is fixed, the connecting bolt 12 is tightened, so that the first gasket 111 and the outer wall of the pipe 30 are abutted and abutted, and the second gasket 112 and the outer wall of the connecting pipe 20 are abutted and compressed.

[0040] Then the external electromagnetic induction heating coil is moved to the position of the end of the connecting pipe 20, and the electromagnetic induction heating coil generates an alternating magnetic field with appropriate frequency and strength to heat and melt the end of the connecting pipe 20. The surface temperature of the connecting pipe 20 is monitored by an infrared temperature sensor, and then it is judged whether it is melted. When the connecting pipe 20 is melted to an appropriate degree, the connecting bolt 12 is further tightened, so that the second gasket 112 further clamps the connecting pipe 20, and the second gasket 112 provides a radial extrusion force to the connecting pipe 20 to the center.

[0041] Finally, the electromagnetic induction heating coil is removed, and the pipeline 30 is butt-jointed and installed at the position. The working parameters of the electromagnetic induction heating coil are not specifically limited, and the user can set the corresponding working parameters according to the number and size of the heating body 21 and the melting point of the PVC material as a reference, so that the alternating magnetic field generated by the electromagnetic induction heating coil can heat the heating body 21 to a temperature higher than the melting point of the PVC material, or the end of the connecting pipe 20 appears obvious softening and melting phenomenon.

[0042] The heating body 21 can be a ferrous metal ring, and the two ends of the connecting pipe 20 are respectively provided with a metal ring, which is located on the end face or the inner wall of the connecting pipe 20. Preferably, as shown in Figure 3 , the metal ring is arranged on the inner wall of the connecting pipe 20 and is spaced apart along the axial direction of the connecting pipe 20, and the inner diameter of the metal ring is greater than or equal to the inner diameter of the connecting pipe 20. The axial length of the metal ring should not be too large, otherwise it will hinder the extrusion and contraction of the connecting pipe 20 to the center.

[0043] Please refer to Figure 5 and Figure 6 , unlike the above-mentioned split type clamping unit 10, in the second embodiment, the clamping unit 10 includes a connecting sleeve 13, a moving ring 14 and a locking nut 15, the connecting sleeve 13 is made of a plastic material with elasticity, such as PVC or PE, the connecting sleeve 13 is used to be sleeved outside the corresponding pipeline 30, the connecting sleeve 13 has a pipe penetrating passage and a receiving groove, and the two ends of the connecting sleeve 13 are respectively provided with an external thread segment 131 and a clamping segment 132 located adjacent to the middle position of the connecting sleeve 13, the diameter of the clamping segment 132 gradually expands from the external thread to the middle position of the connecting sleeve 13 to form a tapered slope 1321; two moving rings 14 are respectively arranged at the two ends of the connecting sleeve 13, the inner hole of the moving ring 14 is in sliding fit with the slope 1321 of the corresponding clamping segment 132; two locking nuts 15 are respectively threadedly connected with the corresponding two external thread segments 131, and the locking nut 15 abuts against the moving ring 14.

[0044] In this embodiment, the clamping section 132 and the external thread section 131 have the above-mentioned accommodating groove. After the end of the connecting pipe 20 is heated and melted, the locking nut 15 is tightened, and the locking nut 15 pushes the movable ring 14 to move to the middle position of the connecting sleeve 13. The movable ring 14 squeezes the clamping section 132 through the inclined surface 1321, and the clamping section 132 applies radial extrusion force to the connecting pipe 20.

[0045] The above-mentioned embodiment 1 and embodiment 2 are applicable to the construction of newly laid communication pipelines, which have not yet been penetrated by communication cables or optical fibers. Figure 7 As shown, old communication pipes may be damaged or broken during use due to factors such as ground subsidence, squeezing, and corrosion. If the broken area is small, PVC material can be used to fill the gap and repair it. However, if the pipe 30 is broken, the broken pipe 30 needs to be removed in its entirety and a new pipe 30 is used to repair the broken area.

[0046] Since the communication pipe is already equipped with cables and optical fibers during maintenance, if the connecting pipe 20 in the above-mentioned embodiment 1 and embodiment 2 is used, it will be blocked by the optical fibers and cables and cannot be placed at the broken position. Figure 7 、 Figure 8 and Figure 9 The third embodiment provides a new installation structure that can directly repair the pipe 30 at the broken position without affecting the original cables and optical fibers. There is no need to pull out the cables or optical fibers during maintenance, thereby avoiding the adverse effects of communication disconnection.

[0047] In the third embodiment, Figure 7 The PVC spiral body made of PVC material shown in the figure has a certain elasticity, which enables the PVC spiral body to shrink into a Figure 8 The spiral tube shown. In its free state, the PVC spiral is helical, allowing existing cables or optical fibers to be inserted through an opening at one end of the spiral and then sheathed around the fiber or cable. When the PVC spiral is squeezed, adjacent coils form surface contact, creating a large contact area that facilitates integration after heat-melting.

[0048] The connecting tube 20 is formed by a PVC spiral 22 subjected to an axial force. The PVC spiral 22 can be made of ferromagnetic metal particles as a base material, and the ferromagnetic metal particles form the heating element 21. Alternatively, a steel wire or steel strip having a circular or flat cross-section can be embedded within the PVC spiral 22 to form the heating element 21.

[0049] In the repair of the pipe 30 at the fracture position, first cut off the pipe 30 at the fracture or crack position by a saw blade or other tools, pay attention to the tool not to touch the original cable or optical fiber. Repair the end face flat, clean the outer surface of the pipe 30, polish the outer surface and end face of the pipe 30 with sandpaper, so that the outer surface of the pipe 30 forms a frosted surface, which is easier to connect.

[0050] Then set the PVC spiral body on the outer periphery of the cable or optical fiber, install the clamping unit 10 in embodiment one at both ends of the pipe 30 to be repaired, adjust the positions of the two clamping units 10 so that the two clamping units 10 can exert axial pressure on the PVC spiral body, and the PVC spiral body forms a spiral pipe under the action of the pressure. Figure 8 The electromagnetic induction heating coil is used to heat the spiral pipe to make it melt, and an integrated connecting pipe 20 is formed under the action of the axial pressure. Finally, install the clamping unit 10 in the above manner to install the PVC spiral body on the pipe 30 to be repaired.

[0051] Please refer to Figure 10 In embodiment four, when the wall thickness of the connecting pipe 20 is relatively thick (for example, 6mm, 8mm), it is not easy to deform under pressure, a plurality of openings 23 can be formed at both ends of the connecting pipe 20, and the plurality of openings 23 are arranged at intervals along the circumference of the connecting pipe 20; one end of the opening 23 penetrates the end of the connecting pipe 20, and the other end extends along the axial direction of the connecting pipe 20. In order to avoid stress concentration at the end of the opening 23, a stress-relieving circular slot 24 penetrating the wall thickness of the connecting pipe 20 is formed at the end of the opening 23, and the opening 23 can be obtained by wire cutting; a heating body 21 is arranged between the two adjacent openings 23, and the heating body 21 is arranged on the inner wall of the connecting pipe 20. The end of the connecting pipe 20 is more easily gathered to the center under the action of the radial extrusion force, and is integrally heat-fused with the end of the pipe 30.

[0052] In the second aspect, the application provides a communication pipeline butt joint installation method, which adopts the communication pipeline butt joint installation structure provided by any one of the above embodiments, and includes the following steps: Align the two pipes 30 to be connected coaxially, clean the butt joint ends of the two pipes 30, so that the two butt joint ends of the pipes 30 are free of oil stains and soil, polish the outer surface of the butt joint end of the pipe 30 with sandpaper to form a frosted surface, and polish the inner surface of the end of the connecting pipe 20 with sandpaper to form a frosted surface.

[0053] Two clamping units 10 are respectively installed on two pipes 30, and a connecting pipe 20 is placed between the two clamping units 10, with two ends of the connecting pipe 20 sleeved outside the two pipes 30, at this time, the clamping units 10 are in a released state, and no clamping force is applied to the connecting pipe 20 and the pipes 30, so that the axial positions of the clamping units 10 and the connecting pipe 20 can be adjusted.

[0054] The positions of the two clamping units 10 are moved, and the two ends of the connecting pipe 20 are respectively accommodated in the accommodating grooves of the two clamping units 10, and the clamping units 10 are adjusted to a clamped state, so that the clamping units 10 apply a central contraction extrusion force to the part of the connecting pipe 20 accommodated in the accommodating grooves.

[0055] An existing openable electromagnetic induction heating coil is used, the electromagnetic induction heating coil is sleeved outside the connecting pipe 20 and the clamping unit 10, an alternating magnetic field is generated by the electromagnetic induction heating coil to heat the heating bodies 21 at the two ends of the connecting pipe 20, the temperature of the heating bodies 21 is raised, and heat is conducted to the connecting pipe 20, the part of the connecting pipe 20 accommodated in the accommodating grooves is heated to the melting point of the connecting pipe 20, or the end of the connecting pipe 20 is obviously softened and melted, and then the electromagnetic induction heating coil is turned off to stop heating.

[0056] The clamping units 10 are further clamped, so that the melted end of the connecting pipe 20 and the butt joint end of the pipe 30 are fused and integrated under the action of the extrusion force, and the sealed butt joint of the two pipes 30 is completed.

[0057] After the step of melting and fusing the end of the connecting pipe 20 and the butt joint end of the pipe 30 under the action of the extrusion force, a waterproof tape is wound outside the connecting pipe 20 to form a surface protection layer through the waterproof tape.

[0058] It can be understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments, and the specific contents of the various combined embodiments will not be described here, and it can be considered that the present application has described the various combined embodiments in the above description, and different combined embodiments can be supported.

[0059] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A communication pipe docking installation structure, characterized in that: include: Two clamping units (10) are respectively used to be installed on two pipes (30) that need to be butted together, the clamping units (10) have pipe-penetrating channels for the corresponding pipes (30) to pass through, and the inner walls of the pipe-penetrating channels are respectively provided with annular receiving grooves at opposite ends of the two clamping units (10); as well as A connecting pipe (20), wherein both ends of the connecting pipe (20) are respectively accommodated in the two receiving grooves, the length of the connecting pipe (20) is greater than the spacing between the two pipes (30) to be connected, the inner diameter of the connecting pipe (20) is greater than or equal to the outer diameter of the pipe (30), the portion of the connecting pipe (20) located in the receiving groove has a heating element (21) within the range of its own wall thickness or on its inner surface, and the heating element (21) is made of ferromagnetic material, and the clamping unit (10) can apply an extrusion force to the connecting pipe (20) to cause the portion of the connecting pipe (20) located in the receiving groove to deform radially inward.

2. The communication pipe docking installation structure according to claim 1, characterized in that: The clamping unit (10) comprises: Two card seats (11), the card seats (11) are semi-annular, the card seats (11) have card slots, the card slots of the two card seats (11) are aligned to form the pipe-through channel and the receiving groove, the side walls of the card slots used to form the pipe-through channel are provided with a first liner (111), the side walls of the card slots used to form the receiving groove are provided with a second liner (112), and the first liner (111) and the second liner (112) are both semi-circular elastic gaskets; and A connecting bolt (12) is provided through one of the clamping seats (11) and is threadably engaged with the other clamping seat (11). The connecting bolt (12) is used to provide a pre-tightening force for aligning and clamping the two clamping seats (11) with each other.

3. The communication pipe docking installation structure according to claim 1, characterized in that: The clamping unit (10) comprises: A connecting sleeve (13) is used to be sleeved on the outside of the corresponding pipe (30), the connecting sleeve (13) having the pipe passage and the accommodating groove, the two ends of the connecting sleeve (13) respectively having an external thread section (131), and a clamping section (132) located at a middle position of the external thread section (131) adjacent to the connecting sleeve (13), the diameter of the clamping section (132) gradually expanding in a direction from the external thread toward the middle position of the connecting sleeve (13) to form a tapered inclined surface (1321); Two movable rings (14) are respectively provided at both ends of the connecting sleeve (13), and the inner holes of the movable rings (14) are slidably matched with the corresponding inclined surfaces (1321) of the clamping sections (132); and Two locking nuts (15) are respectively threadedly engaged with the two corresponding external thread sections (131), and the locking nuts (15) are in contact with the moving ring (14).

4. The communication pipe docking installation structure according to claim 1, characterized in that: The heating element (21) is a metal ring, and the metal rings are respectively provided at both ends of the connecting tube (20), and the metal rings are located on the end surface or inner wall of the connecting tube (20).

5. The communication pipe docking installation structure according to claim 4, characterized in that: The metal ring is provided on the inner wall of the connecting pipe (20), and a plurality of metal rings are provided at intervals along the axial direction of the connecting pipe (20). The inner diameter of the metal ring is greater than or equal to the inner diameter of the connecting pipe (20).

6. The communication pipe docking installation structure according to claim 1, characterized in that: The connecting pipe (20) is a PVC pipe made of ferromagnetic metal particles as a base material.

7. The communication pipe docking installation structure according to claim 1, characterized in that: A plurality of notches (23) are respectively provided at both ends of the connecting tube (20), and the plurality of notches (23) are arranged at intervals along the circumference of the connecting tube (20); One end of the notch (23) passes through the end of the connecting tube (20), and the other end extends along the axial direction of the connecting tube (20). A circular slot (24) that passes through the wall thickness of the connecting tube (20) is provided at the end of the notch (23); the heating element (21) is provided between two adjacent notches (23).

8. A communication pipeline docking installation method, characterized in that: The communication pipe docking installation structure according to any one of claims 1 to 7 comprises the following steps: Align the two pipes (30) to be connected coaxially, and clean the butt ends of the two pipes (30) to ensure that the two butt ends of the pipes (30) are free of oil and dirt; The two clamping units (10) are respectively installed on the two pipes (30), and the connecting pipe (20) is placed between the two clamping units (10), so that the two ends of the connecting pipe (20) are respectively sleeved outside the two pipes (30). At this time, the clamping units (10) are in a released state and have no clamping force on the connecting pipe (20) and the pipe (30); The positions of the two clamping units (10) are moved so that the two ends of the connecting tube (20) are respectively accommodated in the receiving grooves of the two clamping units (10), and the clamping units (10) are adjusted to a clamping state so that the clamping units (10) exert a squeezing force on the portion of the connecting tube (20) located in the receiving groove so as to contract toward the center; The electromagnetic induction heating coil is sheathed on the outside of the connecting tube (20) and the clamping unit (10), and the electromagnetic induction heating coil generates an alternating magnetic field to heat the heating elements (21) located at both ends of the connecting tube (20), thereby increasing the temperature of the heating elements (21) and transferring the heat to the connecting tube (20), thereby heating the portion of the connecting tube (20) located in the receiving groove to its own melting point, and then turning off the electromagnetic induction heating coil to stop heating; The clamping unit (10) is further clamped, so that the melted end of the connecting pipe (20) and the butt end of the pipe (30) are melted and connected into one piece under the action of the extrusion force, thereby completing the sealed butt connection of the two pipes (30).

9. The communication pipe docking installation method according to claim 8, characterized in that: The connecting pipe (20) is formed by a PVC spiral (22) subjected to a force acting along its own axial direction, and the PVC spiral (22) is made of ferromagnetic metal particles as a base material.

10. The communication pipe docking installation method according to claim 8, characterized in that: After the end of the melted connecting pipe (20) and the butt end of the pipe (30) are melted and connected into one piece under the action of an extrusion force, a waterproof tape is wrapped around the outside of the connecting pipe (20) to form a surface protective layer.

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