Rapid connecting and mounting device for lighting pipeline

Abstract

The invention relates to the technical field of cable line installation and connection, in particular to a lighting pipeline quick connection and installation device which comprises a first semi-ring wire connector and a second split wire wrapping device which are arranged in a spaced mode, an opposite moving mechanism is arranged between the first semi-ring wire connector and the second split wire wrapping device, the bottom of the opposite moving mechanism is fixedly arranged, and the bottom of the opposite moving mechanism is fixedly connected with the first semi-ring wire connector and the second split wire wrapping device. Opposite moving sliding seats are installed on the upper portion and the lower portion of the opposite moving mechanism respectively, the two opposite moving sliding seats are connected with the first semi-ring wire connector and the second split wire wrapping device correspondingly, the first semi-ring wire connector is used for restraining connection of aluminum wires to be connected, and the second split wire wrapping device is used for restraining connection of the aluminum wires to be connected. And the second split wire wrapping device is used for wrapping a new insulating layer of the connected aluminum wire. Through a bidirectional lead screw transmission structure, opposite movement of the first semi-ring wire connector and the second split wire wrapping device is realized, welding and wrapping procedures can be quickly switched, the connection time of a single aluminum wire is shortened, and the connection efficiency of a plurality of aluminum wires can be improved through double-station parallel operation.

Description

Technical Field

[0001] The present invention relates to the technical field of cable line installation and connection, and particularly to a rapid connection and installation device for lighting pipelines. Background Art

[0002] In the fields of high-voltage power transmission and lighting lines, aluminum wires, due to their characteristics of light weight, low cost, and good electrical conductivity, have become important materials for constructing engineering and industrial lighting power supplies. They are widely used in the laying of lines for distributing power from high-voltage transmission lines to lighting areas, as well as in the internal line connections of large lighting facilities and other places.

[0003] When there is an emergency repair for a lighting line failure or when extending the wiring during the installation process, the connection technology of aluminum wires directly affects whether the lighting system can operate safely, stably, and efficiently.

[0004] Currently, the connection of aluminum wires mostly adopts the methods of manual joints or connector lapping.

[0005] However, when repairing lighting line failures, the manual joint method has the following disadvantages: Since lighting lines are widely distributed, finding and repairing fault points often need to be carried out in complex environments. The efficiency of manually connecting wires one by one is extremely low, and it is difficult to meet the demand for quickly restoring lighting.

[0006] In addition, after retrieval, in the patent document with the patent application number CN202211162310.4 and the IPC main classification number H02G15 / 18, a cable connection structure, a cable connection method, and a cable connector are disclosed. It mainly includes a compression sleeve and a protective sleeve; a threaded compression sleeve is provided on the basis of the protective sleeve, and a first groove and a compression head are provided in the compression sleeve, so that when the compression sleeve is tightened, the compression head is pushed to compress the cable and push the cable together, causing the cable to bulge. This is beneficial for when the cable is subjected to a tensile force, the resistance point formed by the cable bulge contacts the compression head.

[0007] It can be seen that the following problems exist when using the connector lapping method in the prior art: First, in the emergency repair of lighting cable line failures, under the impact of high voltage, large current, and frequent on-off of the power, the contact resistance at the tightly connected part of the cable conductors will gradually increase and the heating will intensify, reducing the connection reliability and even possibly causing secondary failures, resulting in repeated interruptions of the lighting system.

[0008] In addition, the reliability of the connection part is still poor when using the method of compressing the cable with a compression head when the cable pipeline is subjected to impact force or pulling force, especially the safety is poor when dealing with the application conditions under the impact load state.

[0009] Based on this, it can be found that there is a necessity to design a fast connection and installation device for lighting pipelines that can improve the construction efficiency of cable line installation and connection and the safety of line installation. Summary of the Invention

[0010] One of the technical solutions adopted by the present invention to solve the above technical problems is: a fast connection and installation device for lighting pipelines, including two first half-ring wire connectors and a second split wire wrapper arranged at intervals. A displacement mechanism is arranged between the first half-ring wire connector and the second split wire wrapper. The bottom of the displacement mechanism is fixedly arranged. Displacement sliders are respectively installed on the upper and lower parts of the displacement mechanism. The two displacement sliders are respectively connected to the corresponding first half-ring wire connector and the second split wire wrapper. The first half-ring wire connector is used to restrain the connection of the aluminum wire to be connected, and the second split wire wrapper is used to wrap the new insulating layer of the aluminum wire after the connection is completed.

[0011] Based on any of the above technical solutions, a further optimization is: when the first half-ring wire connector completes the connection repair of the current aluminum wire, the second split wire wrapper continues to wrap the new insulating layer of the aluminum wire after the connection repair.

[0012] Based on any of the above technical solutions, a further optimization is: the displacement mechanism includes a vertically arranged vertical frame. A connection seat is fixedly connected to the bottom of the vertical frame. The connection seat is in a state of being relatively fixed to the ground during use. A vertically arranged bidirectional lead screw is installed inside the vertical frame. The top and bottom of the bidirectional lead screw respectively pass through the through holes at the corresponding positions of the vertical frame through stepped shaft sections. A rotating handwheel is fitted and inserted into the prism hole at the top of the stepped shaft section above. The helix directions of the external threads on the upper and lower parts of the bidirectional lead screw are opposite. Displacement sliders are respectively screwed on the side walls of each section of the external thread. The rotating handwheel can drive the bidirectional lead screw to rotate around a fixed axis by manual rotation. When the bidirectional lead screw rotates, it drives the two displacement sliders to approach or move away from each other.

[0013] On the basis of any of the above technical solutions, a further optimization is as follows: The first half-ring connector includes two heat-insulating semi-cylinders symmetrically arranged from top to bottom. The two ends of the heat-insulating semi-cylinder are through. At the two ends of the heat-insulating semi-cylinder, first constraint groove rails are integrally formed respectively. The middle parts of the outer side walls of the heat-insulating semi-cylinders are fixedly connected to the opposing sliding seats respectively. Inside each heat-insulating semi-cylinder, a graphite semi-ring is slidably fitted. Both ends of the graphite semi-ring are slidably fitted inside the corresponding first constraint groove rail through the protruding parts thereon. When the two first constraint groove rails are butted, the two graphite semi-rings are butted and a welding cavity for the aluminum wire to be connected to be inserted is formed inside. On the middle outer side walls of each heat-insulating semi-cylinder, an electrode constraint tube is integrally formed. The inside of each electrode constraint tube is used to slidably fit an external heating electrode. After the external heating electrode is installed, it extends into the heat-insulating semi-cylinder and is used to press against the circumferential outer side wall of the corresponding graphite semi-ring and achieve electrical connection.

[0014] On the basis of any of the above technical solutions, a further optimization is as follows: When the external heating electrode is powered on, the graphite semi-ring is heated and its temperature rises. After the two graphite semi-rings are heated, the aluminum wire constrained inside them is welded and the solidification of the aluminum wire welding point is achieved after cooling.

[0015] On the basis of any of the above technical solutions, a further optimization is as follows: Both ends of each graphite semi-ring extend out of the outer end of the heat-insulating semi-cylinder, and a dial tooth is fixedly installed at the outer end of each graphite semi-ring. During the process of heating the internal aluminum wire by the two graphite semi-rings in the butted state, each dial tooth is driven by an external force to drive the graphite semi-ring to rotate as required, and the uniform mixing of the semi-fluid aluminum liquid in the welding state is achieved during the rotation.

[0016] On the basis of any of the above technical solutions, a further optimization is as follows: The exposed length of the aluminum wire at the butting part is greater than the length of the graphite semi-ring.

[0017] On the basis of any of the above technical solutions, further optimization is that: the second split wire wrapper includes two heating half-cylinders symmetrically arranged from top to bottom, the two ends of the heating half-cylinder are through-arranged, the middle of the outer side wall of the heating half-cylinder is respectively fixedly connected to the opposing sliding seat, and internal threads are respectively arranged on the inner side walls at the two ends of the heating half-cylinder, and a combined wrapping spiral tube is screwed in the internal thread cavity formed by the two heating half-cylinders, and a wrapping cavity for the aluminum wire to pass through after docking is arranged inside the combined wrapping spiral tube, and the outer diameter of the wrapping cavity is larger than the outer diameter of the aluminum wire, and an annular storage space is formed between the two heating half-cylinders and the outer side wall of the combined wrapping spiral tube, and the storage space is used to store insulating material in a high-temperature fluid state, and the combined wrapping spiral tube connects the wrapping cavity with the storage space through various guide ports arranged thereon, and the insulating material in a flowing state enters the wrapping cavity through the guide ports and is wrapped on the outer side wall of the repaired aluminum wire.

[0018] Based on any of the above technical solutions, further optimization is that a feed pipe joint is fixedly installed on the top of the heating half-cylinder, and the end of each feed pipe joint extends to the outside of the corresponding opposing sliding seat, and each feed pipe joint is connected to the high-pressure discharge port of an external small portable injection molding machine.

[0019] Based on any of the above technical solutions, further optimization is that: the heating half cylinder is made of graphite material.

[0020] Based on any of the above technical solutions, further optimization is that: the heating half cylinder is heated by an external electrode, and the outside of the heating half cylinder is configured with insulation material as needed.

[0021] Based on any of the above technical solutions, further optimization is that: the combined wrapped spiral tube can be driven by external force to move along the axial direction of the aluminum wire and wrap the insulating material on the outer wall of the aluminum wire during the movement, and the insulating material on the outer wall of the aluminum wire forms a new insulating layer after cooling.

[0022] On the basis of any of the above technical solutions, further optimization is that the combined wrapped spiral tube fitting comprises two detachable semicircular threaded tubes that are connected and clamped, and the outer side wall of the combined wrapped spiral tube fitting formed by connecting the two semicircular threaded tubes is provided with an external thread that screws into the internal thread on the inner side wall of each heating half-cylinder, and a plurality of guide ports are spaced apart along the length direction on both sides of the connecting part of the two semicircular threaded tubes, and the interior of the two semicircular threaded tubes forms the wrapped cavity.

[0023] Based on any of the above technical solutions, further optimization is that: the semicircular threaded tube is made of graphite material.

[0024] Based on any of the above technical solutions, further optimization is that: a material removal disk is integrally formed at the end of each of the semicircular threaded tubes; when the combined wrapped spiral tube quickly and passively realizes spiral rotation under the action of external force, the insulating material flowing out of each of the guide ports is coated on the outer wall of the aluminum wire under the scraping action of the inner wall of the combined wrapped spiral tube.

[0025] It should be noted that power distribution and power connection are special operations that require special work according to requirements. Operators must wear high-temperature resistant insulating gloves or protective gear when using the lighting pipeline quick connection installation device, and wear high-temperature resistant insulating gloves or use tools to complete the action when moving the material dial or the teeth.

[0026] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the counter-movement of the first half-ring connector and the second split wire wrapper through a bidirectional screw transmission structure, which can quickly switch the welding and wrapping processes, shorten the connection time of a single aluminum wire, and improve the connection efficiency of multiple aluminum wires through double-station parallel operation.

[0027] 2. The present invention utilizes the high thermal conductivity, high temperature resistance (melting point is about 3652°C) and self-lubricating property of the graphite half ring, and evenly melts the butt end of the aluminum wire through surface contact heating. The rotating teeth drive the graphite half ring to rotate, so that the molten aluminum liquid is evenly distributed under the action of centrifugal force, eliminating the pore defects in traditional welding, forming a dense welding joint, and improving the connection strength and reliability.

[0028] 3. The second split wire wrapper of the present invention adopts a dynamic spin coating process. The high-voltage insulating material (10-15MPa) enters the coating cavity through the guide port. The turbulence effect is generated due to the sudden change in cross-sectional area, which increases the contact area with the aluminum wire surface. When the material disc rotates, the edge scrapes and centrifugal force the liquid insulating material, forcing the insulating material to evenly fit the aluminum wire surface. At the same time, the heating half cylinder maintains local high temperature to delay the initial setting time, ensuring uniform thickness of the insulating layer and high molding quality.

[0029] 4. The bidirectional lead screw in the shifting mechanism of the present invention has a self-locking characteristic, and the positions of the first half-ring connector and the second split wire wrapper can be accurately positioned by rotating the hand wheel. The guiding effect of the first constraint groove ensures the precise docking of the aluminum wire welding and the insulation wrapping, forming a welding cavity and a wrapping cavity that match the outer diameter of the aluminum wire, ensuring position accuracy and avoiding the connection effect affected by deviation.

[0030] 5. The present invention provides a heat-insulating semi-cylinder and a heat-insulating material is configured outside the heating semi-cylinder, and it is required that the operator wears high-temperature resistant insulating gloves or protective gear (dielectric strength ≥ 25 kV / mm, hand temperature controlled below 40 °C), reducing the risks of scalding and electric shock; at the same time, wearing protective gear is taken as a necessary step and embedded in the standardized process to improve the operation standardization. The flame-retardant property of the protective gear can delay the spread of fire in case of accidental fire, ensuring the operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to actual scale.

[0032] Figure 1 It is a three-dimensional structure schematic diagram of the first perspective of the present invention.

[0033] Figure 2 It is a three-dimensional structure schematic diagram of the second perspective of the present invention.

[0034] Figure 3 It is a top view structure schematic diagram of the present invention.

[0035] Figure 4 It is a side view structure schematic diagram of the present invention.

[0036] Figure 5 It is a front view structure schematic diagram of the present invention.

[0037] Figure 6 It is a first partial three-dimensional structure schematic diagram of the present invention.

[0038] Figure 7 For Figure 6 the top view structure schematic diagram.

[0039] Figure 8 It is a second partial three-dimensional structure schematic diagram of the present invention.

[0040] Figure 9 For Figure 8 the top view structure schematic diagram.

[0041] Figure 10 It is a three-dimensional structure schematic diagram of the combined wrapped screw pipe fitting of the present invention.

[0042] Figure 11 It is a structure schematic diagram of the combined wrapped screw pipe fitting of the present invention in a disassembled state.

[0043] Figure 12 It is a front view structure schematic diagram of the present invention.

[0044] In the figure, 1 is the first semi-ring connector; 2 is the second split wire-wrapping device; 3 is the opposing sliding seat; 4 is the rotating handwheel; 5 is the bidirectional lead screw; 6 is the vertical frame; 7 is the connecting seat; 8 is the graphite semi-ring, 801 is the protruding part; 9 is the heat-insulating semi-cylinder; 10 is the first constraint groove track; 11 is the electrode constraint tube; 12 is the tooth; 13 is the heating semi-cylinder; 14 is the material-pushing plate; 15 is the combined wire-wrapping screw component; 16 is the wire-wrapping cavity; 17 is the storage space; 18 is the diversion port; 19 is the feed pipe joint; 20 is the semi-circular threaded pipe. Specific implementation mode

[0045] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention. The specific structure of the present invention is as Figures 1 - 12 shown in the figure.

[0046] Embodiment 1: A quick connection and installation device for lighting pipelines, including two first semi-ring connectors 1 and second split wire-wrapping devices 2 arranged at intervals. An opposing mechanism is provided between the first semi-ring connector 1 and the second split wire-wrapping device 2. The bottom of the opposing mechanism is fixedly arranged. Opposing sliding seats 3 are respectively installed on the upper and lower parts of the opposing mechanism. The two opposing sliding seats 3 are respectively connected to the corresponding first semi-ring connector 1 and the second split wire-wrapping device 2. The first semi-ring connector 1 is used to constrain the connection of the aluminum wire to be connected, and the second split wire-wrapping device 2 is used to wrap the new insulating layer of the aluminum wire after the connection is completed.

[0047] The opposing mechanism of this device adopts a bidirectional lead screw 5 transmission structure. When the rotating handwheel 4 drives the bidirectional lead screw 5 to rotate, due to the opposite helix directions of the external threads on the upper and lower parts of the lead screw, the two opposing sliding seats 3 will move towards or away from each other along the axial direction of the lead screw.

[0048] When aluminum wire connection is required, rotate the rotating handwheel 4 to drive the two opposing sliding seats 3 to open the first semi-ring connector 1 and the second split wire-wrapping device 2, and expose the graphite semi-ring 8 of the first semi-ring connector 1 respectively; after the connection is completed, rotate the rotating handwheel 4 again to make the two semi-circular threaded pipes 20 of the second split wire-wrapping device 2 approach the connection point to realize process switching.

[0049] Specifically, the operating front line cuts off the power supply of the line to be repaired, and at the same time exposes a section of appropriate length at the connection ends of each aluminum wire to be connected for use. Rotate the rotary handwheel 4 on the top of the moving pair control mechanism to drive the first half-ring connector 1 and the second split wire-wrapping device 2 to open respectively. After opening, the two graphite half-rings 8 of the first half-ring connector 1 are in a relatively spaced state. At this time, butt the two connection ends of the currently to-be-connected aluminum wire and place them in the lower graphite half-ring 8. Heat the graphite half-ring 8 by relying on an external power supply and heating electrodes. After heating to the set temperature, control the two graphite half-rings 8 to return to their positions and butt against each other, and rely on the welding cavity to wrap the butt ends of the aluminum wire. At the high-temperature heating state, the butt ends of the two aluminum wires start to melt. Control the heating temperature for 15S - 20S, then stop heating and release the two graphite half-rings 8. At this time, observe the welding state of the aluminum wire connection point. After passing the inspection, rotate the entire device so that the second split wire-wrapping device 2 faces the currently connected aluminum wire. Wrap the aluminum wire with the two separate semi-circular threaded pipes 20. At this time, connect each feed pipe joint to the high-pressure discharge port of an external small portable injection molding machine through a multi-way joint or pipeline respectively. Under the high-pressure pumping state, quickly transport the high-temperature fluid insulating material to the storage space 17. The insulating material inside the storage space 17 quickly flows to the wrapping cavity 16 through each diversion port 18. Rotate the quick-return rotary baffle 14 rapidly to make the high-temperature fluid insulating material flowing into the wrapping cavity 16 wrap around the outer wall of the aluminum wire at the exposed part. During the process of wrapping the aluminum wire, heat the heating semi-cylinder 13 by electrodes as needed to delay the initial setting time of the insulating material and provide sufficient time for the safe operation of the electrician. After the new insulating layer outside the aluminum wire is wrapped, stop supplying the insulating material and heating the heating semi-cylinder 13, and wait for the insulating layer on the surface of the aluminum wire to cool and solidify. Control the relative separation of the two semi-circular threaded pipes 20 following the heating semi-cylinder 13 to achieve separation, and then it can be quickly removed. Thus, the butt joint of the aluminum wire conductor and the wrapping and forming of the new insulating layer outside the aluminum wire are completed for the current aluminum wire.

[0050] Graphite half-ring 8 heating and welding process: The graphite half-ring 8 serves as a heating element. Utilizing its high thermal conductivity and high temperature resistance (the melting point of graphite is about 3652 °C), Joule heat is generated by passing an electric current through the external heating electrodes, and the heat is quickly transferred to the butt ends of the aluminum wire (the melting point of aluminum is 660 °C).

[0051] When the two butt-jointed graphite half-rings 8 form a welding cavity, their inner walls are in close contact with the aluminum wire, forming surface contact heating, ensuring that the butt ends of the aluminum wire are evenly heated to the molten state, and the combination is completed within 15 - 20 seconds. After cooling, a welded connection is formed.

[0052] Dynamic process of insulation material wrapping: The high pressure (usually 10-15MPa) provided by the external small portable injection molding machine causes the insulation material to enter the storage space 17 at high speed as a liquid fluid. When it enters the wrapping cavity 16 through the guide port 18, a turbulent effect is generated due to the sudden change in cross-sectional area, increasing the contact area with the surface of the aluminum wire. When the material disc 14 rotates with the semicircular threaded tube 20 under the external force, its edge scrapes the liquid insulation material, forcing the insulation material to evenly fit the outer surface of the aluminum wire. At the same time, the local high temperature is maintained by heating the semi-cylinder 13 (graphite material, which can be heated by electricity), so that the insulation material remains in liquid state during the wrapping process to avoid premature solidification.

[0053] In the welding process, the self-lubricating property of the graphite half ring 8 (easy sliding between graphite layers) is utilized, and the graphite half ring 8 is rotated by the shifting teeth 12, so that the molten aluminum liquid is evenly distributed under the action of centrifugal force, thereby eliminating the porosity defects in traditional welding.

[0054] In the coating process, the traditional static casting insulation is changed to dynamic spin coating insulation to improve the quality of insulation layer molding.

[0055] Based on any of the above technical solutions, further optimization is that: when the first half-ring connector 1 completes the connection repair of the current aluminum wire, the second split wire wrapper 2 continues to wrap the aluminum wire after the connection repair with a new insulation layer; when the second split wire wrapper 2 continues to wrap the aluminum wire after the connection repair with a new insulation layer, the first half-ring connector 1 continues to complete the connection repair of the next aluminum wire to be connected inside the same cable.

[0056] When the first half-ring connector 1 completes the welding of the first aluminum wire (taking about 20-30 seconds), the shifting mechanism drives the second split wire wrapper 2 to open, and at the same time the first half-ring connector 1 is placed at the position of the second aluminum wire to be connected in the cable, thus achieving double-station operation.

[0057] The second split wire wrapper 2 is positioned to the connection point of the first aluminum wire by rotating the hand wheel 4 and is wrapped around the outer periphery of the aluminum wire, starting the insulation wrapping process (taking about 30 seconds); at the same time, the first half-ring connector 1 performs a welding operation on the second aluminum wire, forming a parallel operation process.

[0058] The first half-ring connector 1 and the second split wire wrapper 2 can also be operated independently as needed.

[0059] On the basis of any of the above technical solutions, further optimization is that: the shift mechanism includes a vertically arranged vertical frame 6, a connecting seat 7 is fixedly connected to the bottom of the vertical frame 6, and the connecting seat 7 is in a relatively fixed state with the ground when in use. A vertically arranged bidirectional lead screw 5 is installed inside the vertical frame 6, and the top and bottom of the bidirectional lead screw 5 respectively pass through the through holes at the corresponding positions of the vertical frame 6 through stepped shaft sections, and a rotating handwheel 4 is cooperated and inserted in the prismatic hole at the top of the stepped shaft section above. The external threads of the upper and bottom of the bidirectional lead screw 5 have opposite rotation directions, and the shift slide 3 is screwed on the side walls of each section of the external thread respectively. The rotating handwheel 4 can drive the bidirectional lead screw 5 to rotate on a fixed axis by human power rotation, and when the bidirectional lead screw 5 rotates, it drives the two shift slides 3 to move closer to or away from each other.

[0060] Preparation for welding station: Rotate the hand wheel 4 counterclockwise, and the bidirectional lead screw 5 drives the two pairs of sliding seats 3 to move back to the extreme position (spacing 150mm), so that the graphite half ring 8 of the first half ring connector 1 is completely exposed, which is convenient for placing the two ends of the aluminum wire to be connected.

[0061] Switching of wrapping station: After the welding is completed, rotate the hand wheel 4 clockwise, and the two pairs of sliding seats 3 move toward each other. When the second split wire wrapper 2 moves to 5 mm away from the aluminum wire connection point, it stops, and the position is kept fixed by the self-locking characteristics of the bidirectional screw 5, and the insulation wrapping process is started.

[0062] Aluminum wire positioning and clamping: Manually rotate the hand wheel 4, and the bidirectional screw 5 drives the upper sliding seat 3 to drive the heat-insulating half cylinder 9 of the first half ring connector 1 to move downward, so that the two graphite half rings 8 are open (in a separated state). Place the two aluminum wire butt ends to be connected in the groove of the lower graphite half ring 8, and rotate the hand wheel 4 again to close the two graphite half rings 8. Through the guidance of the first constraint groove 10, precise docking is achieved to form a welding cavity with an inner diameter matching the outer diameter of the aluminum wire (for example, the aluminum wire diameter is 10mm, and the inner diameter of the welding cavity is 10.2mm).

[0063] Heating and welding of graphite half ring 8: The external heating electrode (such as silicon carbide electrode) is in close contact with the outer wall of the graphite half ring 8 through the electrode restraint tube 11, using the high conductivity of graphite (resistivity 5×10⁻ 6 Ω・m) to generate Joule heat. The graphite half ring 8 is quickly heated to 800℃ (higher than the melting point of aluminum 660℃), and the aluminum wire butt end is melted through surface contact heat transfer. After heating for 15-20 seconds, the power is cut off and the graphite half ring 8 is released, and the aluminum liquid cools and solidifies to form a metal bond connection.

[0064] During the heating process, the teeth 12 at the outer end of the graphite half ring 8 are moved by external force to drive the graphite half ring 8 to rotate, so that the molten aluminum liquid is evenly distributed under the action of centrifugal force, the pores and shrinkage defects are eliminated, and a dense welded joint is formed.

[0065] After the welding is completed, the hand wheel 4 is rotated to drive the bidirectional screw 5, so that the first half-ring connector 1 moves upward with the upper opposing slide 3, and the second split wire wrapper 2 moves downward with the lower opposing slide 3, and the two are separated to the middle position (the distance is about 75mm).

[0066] Adjust the position of the device so that the second split wire wrapper 2 is aligned with the welded aluminum wire connection point, and rotate the hand wheel 4 again to drive the second split wire wrapper 2 to move downward until the semicircular threaded tube 20 inside it completely covers the aluminum wire connection point (covering length 50mm).

[0067] Pumping and filling of insulating material: Connect the feed pipe joint 19 to an external small portable injection molding machine (pressure 10-15MPa), start the injection molding machine, and the high-temperature liquid insulating material (polyethylene, temperature 220°C) enters the storage space 17 at high speed through the guide port 18, and generates a turbulent effect due to the sudden change in cross-sectional area, ensuring that the insulating material is evenly filled into the gap between the coating cavity 16 and the aluminum wire.

[0068] Dynamic spin coating: External force moves the material disc 14 at the end of the semicircular threaded tube 20 to rotate along the axial direction of the aluminum wire. The edge of the material disc 14 scrapes and centrifugal forces the liquid insulating material, forcing the insulating material to evenly adhere to the surface of the aluminum wire. At the same time, the heating half cylinder 13 (graphite material, powered on and heated to 200°C) maintains local high temperature, delays the initial setting time of the insulating material (the operation time can be extended to 60 seconds), and is convenient for operators to adjust the coating thickness.

[0069] Stop the injection molding machine feeding, turn off the external heating power of the heating half cylinder 13, wait for 10-15 seconds for the insulation material to cool and solidify. Rotate the hand wheel 4 to drive the second split wire wrapper 2 to separate, remove the device, and a continuous and dense new insulation layer will be formed on the surface of the aluminum wire.

[0070] On the basis of any one of the above technical solutions, a further optimization is as follows: the first half-ring connector 1 includes two heat-insulating half-cylinders 9 symmetrically arranged from top to bottom. The two ends of the heat-insulating half-cylinder 9 are provided with through holes. At the two ends of the heat-insulating half-cylinder 9, first constraint groove rails 10 are integrally formed respectively. The middle parts of the outer side walls of the heat-insulating half-cylinders 9 are fixedly connected to the displacement sliding seats 3 respectively. Graphite half-rings 8 are slidably fitted and installed inside each of the heat-insulating half-cylinders 9. Both ends of the graphite half-ring 8 are slidably fitted inside the corresponding first constraint groove rail 10 through the protrusions 801 thereon. When the two first constraint groove rails 10 are butted, the two graphite half-rings are butted and a welding cavity for the aluminum wire to be connected to be inserted is formed inside. An electrode constraint tube 11 is integrally formed on the middle outer side wall of each heat-insulating half-cylinder 9. The inside of each electrode constraint tube 11 is used to fit and install an external heating electrode. After the external heating electrode is installed, it extends into the heat-insulating half-cylinder 9 and is used to press against the circumferential outer side wall of the corresponding graphite half-ring 8 to achieve electrical connection.

[0071] On the basis of any one of the above technical solutions, a further optimization is as follows: when the external heating electrode is powered on, the graphite half-ring 8 is heated and its temperature rises. After the two graphite half-rings 8 are heated, the aluminum wire constrained inside them is welded and the welding point of the aluminum wire is solidified after cooling.

[0072] On the basis of any one of the above technical solutions, a further optimization is as follows: both ends of each graphite half-ring 8 extend out of the outer end of the heat-insulating half-cylinder 9, and a tooth 12 is fixedly installed at the outer end of each graphite half-ring 8; during the process of heating the internal aluminum wire by the two graphite half-rings 8 in the tightened state, each tooth 12 is driven by an external force to drive the graphite half-ring 8 to rotate as required, and the molten aluminum semi-fluid in the welding state is uniformly mixed during the rotation process.

[0073] The operator uses a wrench to hook the tooth 12 and applies a tangential force to make the graphite half-ring 8 rotate around its axis. The rotation angle range is 0 - 360°, and the rotation speed can be controlled by the force application frequency.

[0074] On the basis of any one of the above technical solutions, a further optimization is as follows: the exposed length of the aluminum wire at the butting part is greater than the length of the graphite half-ring 8.

[0075] When the two graphite half-rings 8 are butted to form a welding cavity, the middle 25 mm of the exposed part of the aluminum wire is directly wrapped and heated by the graphite half-ring 8, and the two ends of 2.5 mm each are in the through area of the heat-insulating half-cylinder 9 (not covered by graphite), forming a temperature gradient distribution of heating in the middle - dissipating heat at both ends.

[0076] On the basis of any of the above technical solutions, further optimized is that: the second split wire wrapper 2 includes two heating half cylinders 13 symmetrically arranged from top to bottom, the two ends of the heating half cylinder 13 are through-arranged, the middle of the outer wall of the heating half cylinder 13 is respectively fixedly connected to the opposing sliding seat 3, and the inner wall of the two ends of the heating half cylinder 13 is respectively provided with an internal thread, and a combined wrapped spiral pipe fitting 15 is screwed in the internal thread cavity formed by the two heating half cylinders 13, and the interior of the combined wrapped spiral pipe fitting 15 is provided with a connection for docking The aluminum wire passes through the wrapping cavity 16, and the outer diameter of the wrapping cavity 16 is larger than the outer diameter of the aluminum wire. An annular storage space 17 is formed between the two heating half cylinders 13 and the outer side walls of the combined wrapping spiral tube 15. The storage space 17 is used to store insulating materials in a high-temperature fluid state. The combined wrapping spiral tube 15 connects the wrapping cavity 16 with the storage space 17 through various guide ports 18 provided thereon. The insulating material in a flowing state enters the wrapping cavity 16 through the guide ports 18 and is wrapped on the outer side wall of the repaired aluminum wire.

[0077] The two heating half cylinders 13 (made of graphite) are fixedly connected to the opposing sliding seat 3 through the outer wall and arranged symmetrically in the vertical direction. The internal threads of the inner wall of the half cylinder are screwed with the external threads of the combined wrapped spiral tube 15 to form a spiral transmission pair.

[0078] Combined wrapped spiral tube 15: It is composed of two detachable semicircular threaded tubes 20 (graphite material) connected together, and a wrapped cavity 16 is formed inside (the diameter is 2mm larger than the aluminum wire, if the diameter of the aluminum wire is 10mm, the diameter of the wrapped cavity 16 is 12mm). An annular material storage space 17 is formed between the outer wall of the combined wrapped spiral tube 15 and the inner wall of the heating half cylinder 13, and the material storage space 17 is connected to the wrapped cavity 16 through evenly distributed guide ports 18.

[0079] Motion transmission process: external force drives the material dial 14 at the end of the semicircular threaded tube 20, driving the combined wrapped spiral tube to rotate clockwise along the internal thread of the heating half cylinder 13. Due to the axial component of the thread transmission, the combined wrapped spiral tube moves downward along the axial direction of the aluminum wire. At the same time, the high-temperature insulating material (such as polyethylene, temperature 220°C) in the storage space 17 is sprayed into the wrapping cavity 16 through the guide port 18 under high pressure to form an insulating layer with uniform thickness.

[0080] On the basis of any of the above technical solutions, further optimization is that a feed pipe joint 19 is fixedly installed on the top of the heating half cylinder 13, and the end of each feed pipe joint 19 extends to the outside of the corresponding opposing sliding seat 3, and each feed pipe joint 19 is connected to the high-pressure discharge port of an external small portable injection molding machine.

[0081] The feed pipe joint 19 is made of high temperature resistant stainless steel (316L), with an inner diameter of 6mm and an outer diameter of 10mm, and is fixed to the center of the top of the heating half cylinder 13 by threads. A guide cone is machined inside the joint to converge the insulating material flow (flow rate 1m / s) output by the injection molding machine to the storage space 17 to reduce flow resistance.

[0082] The end of the feed pipe connector 19 extends out of the opposing slide 3 by about 20 mm and is quickly connected to the discharge port of a small portable injection molding machine (displacement 50 cm³ / min) through a high-pressure hose (temperature resistance 250°C, pressure resistance 20 MPa) (using a ferrule connector, sealing pressure ≥15 MPa).

[0083] When the injection molding machine is started, the insulating material enters the annular storage space 17 between the heating half cylinder 13 and the combined wrapped spiral tube 15 through the feed pipe joint 19 under the action of the piston thrust (pressure 10-15MPa), forming a stable high-pressure fluid transmission channel.

[0084] On the basis of any of the above technical solutions, further optimization is that: the heating half cylinder 13 is made of graphite material.

[0085] On the basis of any of the above technical solutions, further optimization is that: the heating half cylinder 13 is heated by an external electrode, and the outside of the heating half cylinder 13 is configured with heat insulation material as needed.

[0086] By changing the input voltage through an external voltage regulator (adjustable from 0 to 24V), the heating power can be precisely controlled (accuracy ±5%), thereby adjusting the temperature of the heating half cylinder 13 (control accuracy ±5℃).

[0087] When polyethylene insulation is used, heat it to 220°C; when silicone rubber insulation is used, heat it to 180°C to meet the process temperature requirements of different materials.

[0088] Based on any of the above technical solutions, further optimization is that: by using external force to push the combined wrapped spiral tube 15, it can be driven to move along the axial direction of the aluminum wire and wrap the insulating material on the outer wall of the aluminum wire during the movement. The insulating material on the outer wall of the aluminum wire forms a new insulating layer after cooling.

[0089] Embodiment 2: Compared with Embodiment 1, this embodiment is different in that it also includes the following technical features: On the basis of any of the above technical solutions, further optimization is that the combined wrapped spiral tube fitting 15 includes two detachable semicircular threaded tubes 20 that are connected and clamped, and an external thread that is screwed with the internal thread on the inner wall of each heating half cylinder 13 is provided on the outer wall of the combined wrapped spiral tube fitting 15 formed by connecting the two semicircular threaded tubes 20, and a plurality of guide ports 18 are spaced apart along the length direction on both sides of the connecting part of the two semicircular threaded tubes 20, and the interior of the two semicircular threaded tubes 20 forms the wrapped cavity 16.

[0090] Two semicircular threaded tubes 20 (graphite material) are butted against the concave holes through the clamping bosses at the ends to form a complete cylindrical combined wrapped spiral tube member 15 .

[0091] The external thread of the outer wall of the combined wrapped spiral tube 15 is screwed into the internal thread of the inner wall of the heating half cylinder 13. When an external force drives the combined wrapped spiral tube 15 to rotate, due to the action of the thread lead, the combined wrapped spiral tube 15 moves along the axial direction of the aluminum wire, and at the same time drives the insulating material to flow spirally along the inner wall of the combined wrapped spiral tube 15; the guide port 18 cooperates with the rotational movement to allow the insulating material to enter the wrapping cavity 16 in a tangential direction, forming a rotating flow field.

[0092] Based on any of the above technical solutions, further optimization is that: the semicircular threaded tube 20 is made of graphite material.

[0093] Based on any of the above technical solutions, further optimization is that: a material removal disk 14 is integrally formed at the end of each of the semicircular threaded tubes 20; when the combined wrapped spiral tube 15 quickly and passively realizes spiral rotation under the action of external force, the insulating material flowing out of each of the guide ports 18 is coated on the outer wall of the aluminum wire under the scraping action of the inner wall of the combined wrapped spiral tube 15.

[0094] It should be noted that power distribution and connection are special operations that require special operations as required. Operators must wear high-temperature resistant insulating gloves or protective gear when using the lighting pipeline quick connection installation device, and wear high-temperature resistant insulating gloves or use tools to complete the action when moving the material dial 14 and the tooth 12.

[0095] During the operation, personnel safety is guaranteed: Reduced risk of scalding: After wearing high temperature resistant gloves, the surface temperature of the hand skin can be controlled below 40°C, which meets the thermal protection requirements of GB24540-2009 "Protective Clothing for Acid and Alkali Chemicals".

[0096] Elimination of electric shock risk: The dielectric strength of the insulating protective gear is ≥25kV / mm, which can withstand instantaneous overvoltages above 10kV and meet the insulation safety level of power distribution operations.

[0097] Improved operational standardization: Standardized process embedding: Wearing protective equipment is made a necessary step in the operation to enforce and standardize personnel behavior, avoiding safety accidents caused by empiricism or fluke mentality (statistics show that the accident rate of those not wearing protective equipment properly is more than 5 times that of those operating in a standardized manner).

[0098] Emergency response optimization: The material of the protective equipment has flame retardant properties (vertical burning damage length ≤ 100 mm). If there is an accidental splash and fire, it can delay the spread of the fire and gain time for emergency handling (delay time ≥ 30 seconds).

[0099] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention; for those skilled in the art of this technology, any alternative improvements or transformations made to the embodiments of the present invention fall within the protection scope of the present invention.

[0100] Those parts not detailed in the present invention are well-known technologies to those skilled in the art of this technology.

Claims

1. A quick connection and installation device for lighting pipelines, characterized in that: It includes a first semi-ring connector and a second split wire-wrapping device which are spaced apart. A displacement mechanism is arranged between the first semi-ring connector and the second split wire-wrapping device. Displacement sliders are respectively installed at the upper and lower parts of the displacement mechanism. The two displacement sliders are respectively connected to the corresponding first semi-ring connector and the second split wire-wrapping device. The first semi-ring connector is used to constrain the connection of the aluminum wire to be connected, and the second split wire-wrapping device is used to wrap a new insulating layer around the aluminum wire after the connection is completed.

2. The quick connection and installation device for lighting pipelines according to claim 1, characterized in that: After the first semi-ring connector completes the connection repair of the current aluminum wire, the second split wire-wrapping device continues to wrap a new insulating layer around the aluminum wire after the connection repair.

3. The quick connection and installation device for lighting pipelines according to claim 2, characterized in that: The displacement mechanism includes a vertically arranged vertical frame. A connecting seat is fixedly connected to the bottom of the vertical frame. The connecting seat is in a state of being relatively fixed to the ground during use. A vertically arranged bidirectional lead screw is installed inside the vertical frame. The top and bottom of the bidirectional lead screw respectively pass through the through holes at the corresponding positions of the vertical frame through stepped shaft sections. A rotating handwheel is inserted and fitted in the prism hole at the top of the stepped shaft section above. The outer threads at the upper and lower parts of the bidirectional lead screw have opposite helix directions. Displacement sliders are respectively screwed on the side walls of each section of the outer thread. The rotating handwheel can drive the bidirectional lead screw to rotate around a fixed axis by manual rotation. When the bidirectional lead screw rotates, it drives the two displacement sliders to approach or move away from each other.

4. The quick connection and installation device for lighting pipelines according to claim 3, characterized in that: The first semi-ring connector includes two heat-insulating semi-cylinders symmetrically arranged from top to bottom. The two ends of the heat-insulating semi-cylinder are through. First constraint groove rails are integrally formed at the two ends of the heat-insulating semi-cylinder respectively. The middle parts of the outer side walls of the heat-insulating semi-cylinders are respectively fixedly connected to the displacement sliders. Graphite semi-rings are slidably fitted and installed inside each heat-insulating semi-cylinder. Both ends of the graphite semi-ring are slidably fitted inside the corresponding first constraint groove rail through the protruding parts thereon. When the two first constraint groove rails are butted, the two graphite semi-rings are butted and a welding cavity for the aluminum wire to be connected to be inserted is formed inside. Electrode constraint tubes are integrally formed on the middle outer side walls of each heat-insulating semi-cylinder. The inside of each electrode constraint tube is used to fit and install an external heating electrode. After the external heating electrode is installed, it extends into the inside of the heat-insulating semi-cylinder and is used to press against the circumferential outer side wall of the corresponding graphite semi-ring and achieve electrical connection.

5. The quick connection and installation device for lighting pipelines according to claim 4, wherein: When the external heating electrode is powered on, it heats up the graphite semi-ring. After the two graphite semi-rings are heated up, they complete the welding of the aluminum wire constrained inside and solidify the welding point of the aluminum wire after cooling.

6. The lighting pipeline quick connection and installation device according to claim 5, characterized in that: Both ends of each graphite semi-ring extend out of the outer end of the heat-insulating semi-cylinder, and a dial tooth is fixedly installed at the outer end of each graphite semi-ring. During the process of heating the internal aluminum wire by the two graphite semi-rings in the tightened state, each dial tooth is driven to rotate as needed by an external force to drive the graphite semi-ring to rotate. During the rotation process, the semi-fluid aluminum liquid in the welding state is evenly mixed.

7. The quick connection and installation device for lighting pipelines according to claim 6, wherein: The exposed length of the aluminum wire at the butting part is greater than the length of the graphite semi-ring.

8. The quick connection and installation device for lighting pipelines according to claim 7, wherein: The second split wire wrapper comprises two heating half cylinders symmetrically arranged from top to bottom, the two ends of the heating half cylinders are through-arranged, the middle of the outer side wall of the heating half cylinder is respectively fixedly connected to the opposing sliding seat, the inner side walls of the two ends of the heating half cylinders are respectively provided with internal threads, and a combined wrapping spiral tube is screwed in the internal thread cavity formed by the two heating half cylinders, and a wrapping cavity for the aluminum wire to pass through after docking is arranged inside the combined wrapping spiral tube, and the outer diameter of the wrapping cavity is larger than the outer diameter of the aluminum wire, and an annular material storage space is formed between the two heating half cylinders and the outer side wall of the combined wrapping spiral tube, and the interior of the material storage space is used to store insulating materials in a high-temperature fluid state, and the combined wrapping spiral tube connects the wrapping cavity with the material storage space through various guide ports arranged thereon, and the insulating materials in a flowing state enter the wrapping cavity through the various guide ports and are wrapped on the outer side wall of the repaired aluminum wire; A feed pipe joint is fixedly installed on the top of the heating half cylinder, and the end of each feed pipe joint extends to the outside of the corresponding opposing sliding seat, and each feed pipe joint is connected to the high-pressure discharge port of an external small portable injection molding machine.

9. The quick connection and installation device for lighting pipelines according to claim 8, characterized in that: The combined wrapped spiral tube can be driven to move along the axial direction of the aluminum wire by external force, and the insulating material is wrapped on the outer wall of the aluminum wire during the movement. The insulating material on the outer wall of the aluminum wire forms a new insulating layer after cooling.

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