Portable cutting device for electromechanical wire pipe and construction method

Abstract

The portable cutting device comprises a cleaning power source and further comprises a supporting rod connected with the cleaning power source through a power line, a conductive part connected with the power line is arranged in the supporting rod, and a thermoelectric cutting device connected with the conductive part is arranged at the top of the supporting rod. The invention further discloses a portable cutting construction method for the electromechanical wire pipe. The method comprises the steps that S1, field preparation is conducted; s2, designing and checking a construction scheme; s3, the telescopic connecting rods are assembled; s4, confirming the specification of the wire pipe needing to be cut, and adjusting the control switch to a corresponding gear so as to enable the power to meet the cutting requirement; and S5, a cleaning power source is connected to the bottom of the telescopic connecting rod through a power line, the thermoelectric cutting device makes contact with the line pipe, a control switch is turned on, and local heating is conducted on the line pipe through electromagnetic induction. According to the invention, the construction efficiency of operators is improved, the portable cutting construction of electromechanical wire pipes is more convenient, and the device can be widely applied to the field of electrical construction.

Description

Technical Field

[0001] The invention relates to the field of electrical construction, and in particular to a portable cutting device for electromechanical wire and conduit and a construction method. Background Art

[0002] The existing power transmission process requires wiring. In order to ensure the safety of the cable and the stability of the operating environment, the existing cable needs to be covered with a wire tube on the outer surface. When in use, the wire tube is usually cut by a saw blade. This operation method causes burrs on the cut that need to be polished again.

[0003] During the electromechanical installation process, wire tubes are usually installed on the outside of the cables to protect the cables from damage and leakage, avoiding unnecessary trouble. Before fixing the wire tubes, they need to be cut into suitable lengths. During the construction process, some special locations, such as the transition points of some wire tubes, require shorter wire tubes. The manual cutting method is not only inefficient, but also faces the risk of scratches when using manual handheld cutting machines. In addition, it is not convenient to fix the wire tubes during cutting, affecting the quality of cutting. If cutting wire tubes on indoor roofs is often accompanied by the risk of working at heights, not only does it require the erection of brackets, but if the floor height is high, it is also necessary to erect scaffolding of the corresponding height, which greatly increases the cost. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and provide a portable cutting device and construction method for electromechanical wire and conduit, which greatly reduces the probability of falling accidents from heights compared with traditional operations, avoids high-altitude operations, and does not bring safety risks when working on higher floors. It greatly reduces the operating cost, improves the construction efficiency of the operators, makes this type of construction more convenient, and saves costs.

[0005] The present invention provides a portable cutting device for electromechanical wire pipes, comprising a clean power supply and a support rod connected to the clean power supply via a power cord, wherein the support rod has a conductive component connected to the power cord built in, and a thermal electric cutting device connected to the conductive component is provided on the top of the support rod.

[0006] In the above technical solution, the thermal electric cutting device is an electromagnetic induction cutting ring, and a conductive rod connected to the conductive component and arranged vertically to the support rod is provided on the top of the support rod. The end of the conductive rod opposite to the support rod is connected to the electromagnetic induction cutting ring, and the axis of the working surface of the electromagnetic induction cutting ring is parallel to the axis of the support rod.

[0007] In the above technical solution, the support rod is a telescopic connecting rod, which is formed by connecting multiple sections of coaxially connected connecting rods in sequence, and the inner wall of the next connecting rod is matched and connected with the outer wall of the previous connecting rod.

[0008] In the above technical solution, a first built-in metal ring is provided at the top end of the inner wall of the next connecting rod, a first external metal ring is provided at the bottom end of the outer wall of the previous connecting rod, the first built-in metal ring of the next connecting rod and the first external metal ring of the previous connecting rod are matched and connected, a second built-in metal ring is provided at the top end of the inner wall of the previous connecting rod, the first external metal ring and the second built-in metal ring of the previous connecting rod are connected by a metal wire, and the first built-in metal ring, the first external metal ring, the metal wire and the second built-in metal ring together constitute a conductive component.

[0009] In the above technical solution, the clean power supply has a built-in power supply voltage stabilization circuit.

[0010] In the above technical solution, the telescopic connecting rod is provided with a control switch connected to the cleaning power source through a power cord.

[0011] In the above technical solution, a hoop is provided between two adjacent connecting rods.

[0012] The present invention also provides a portable cutting construction method for electromechanical wire pipes, which has the following steps: S1, preparing construction materials on site, cleaning the site, and providing clean power; S2, designing and reviewing the construction plan to ensure the safety of on-site construction personnel; S3, according to the required indoor height of the operation room, selecting a suitable number of connecting rods for splicing to achieve the cutting height, assembling the telescopic connecting rods, each section of the connecting rod has a built-in metal wire connecting the first external metal ring at the bottom end of the outer wall and the second built-in metal ring at the top end of the inner wall to form a conductive circuit, and the power line is connected from the bottom of the telescopic connecting rod. When adjusting the length, the first external metal ring of the upper section of the connecting rod is fully in contact with the first built-in metal ring of the next section of the connecting rod, so that the current is connected to the top thermal cutting device; S4, confirming the specifications of the wire pipe to be cut, adjusting the control switch according to the specifications of the wire pipe, and adjusting the control switch to the corresponding gear so that the power meets the cutting requirements; S5, connecting the clean power supply to the bottom of the telescopic connecting rod through the power line, contacting the thermal cutting device with the wire pipe, and then turning on the control switch to locally heat the wire pipe through electromagnetic induction to achieve the cutting purpose.

[0013] In the above technical solution, the thermal electric cutting device is an electromagnetic induction cutting ring, and in step S5, two symmetrical points on the electromagnetic induction cutting ring are brought into contact with the wire tube at the same time.

[0014] The above technical solution also includes step S6, cutting off the cleaning power supply after cutting is completed, folding and retracting the telescopic connecting rod, and untying the power cord; S7, recovering the power cord, telescopic connecting rod, cleaning power supply, and electromagnetic induction cutting ring, and cleaning the site.

[0015] The portable cutting device and construction method of the electromechanical wire and conduit of the present invention have the following beneficial effects:

[0016] Compared with traditional operations, the present invention greatly reduces the occurrence of high-altitude falling accidents, avoids high-altitude operations, and can well perform wire pipe cutting operations on higher floors, greatly reduces operating costs, and improves the construction efficiency of operators.

[0017] 1. The telescopic connecting rod is used to adjust the height of the thermal electric cutting device, so that on-site cutting operations can be carried out at different heights at the construction site, reducing safety hazards at the construction site, improving installation efficiency, and avoiding the cost of using scaffolding and aerial platforms.

[0018] 2. The electromagnetic induction principle is used for cutting, which avoids the risk of mechanical injury to operators caused by traditional hand-held cutting tools and ensures the personal safety of on-site operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the portable cutting device for electromechanical wire and conduit of the present invention;

[0020] Figure 2 It is a top view of the structure of the portable cutting device for electromechanical wire and conduit of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure inside the telescopic connecting rod in the portable cutting device for electromechanical wire and conduit of the present invention;

[0022] Figure 4 It is a schematic diagram of the electrical principle of the power supply voltage stabilizing circuit built into the cleaning power supply in the portable cutting device for electromechanical wire and conduit of the present invention;

[0023] Figure 5 It is a schematic diagram of the overall process of the portable cutting construction method for electromechanical wire and conduit of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, but the embodiments should not be construed as limiting the present invention.

[0025] See also Figure 1 The portable cutting device for electromechanical wire pipes of the present invention includes a clean power source 2 and a support rod connected to the clean power source 2 via a power cord 6, wherein a conductive component connected to the power cord 6 is built into the support rod, and a thermal electric cutting device connected to the conductive component is provided on the top of the support rod.

[0026] See also Figure 2 The thermal electric cutting device is an electromagnetic induction cutting ring 5. The top of the support rod is provided with a conductive rod 7 connected to the conductive component and arranged vertically with the support rod. The end of the conductive rod 7 opposite to the support rod is connected to the electromagnetic induction cutting ring 5. The axis of the working surface of the electromagnetic induction cutting ring 5 is parallel to the axis of the support rod.

[0027] The support rod is a telescopic connecting rod 4, which is composed of multiple sections of connecting rods that are coaxially connected inside and outside and are connected in sequence. The inner wall of the next connecting rod is matched and connected with the outer wall of the previous connecting rod. In one or more embodiments, the telescopic connecting rod 4 is provided with a control switch 1 connected to the cleaning power supply 2 through a power cord 6. In a further embodiment, a hoop 3 is provided between two adjacent connecting rods.

[0028] See also Figure 3 A first built-in metal ring 41 is provided at the top end of the inner wall of the next connecting rod, and a first external metal ring 42 is provided at the bottom end of the outer wall of the previous connecting rod. The first built-in metal ring 41 of the next connecting rod and the first external metal ring 42 of the previous connecting rod are matched and connected. A second built-in metal ring 43 is provided at the top end of the inner wall of the previous connecting rod. The first external metal ring 42 and the second built-in metal ring 43 of the previous connecting rod are connected by a metal wire 44. The first built-in metal ring 41, the first external metal ring 42, the metal wire 44 and the second built-in metal ring 43 together constitute a conductive component.

[0029] See also Figure 4 The clean power supply 2 has a built-in power supply voltage stabilization circuit.

[0030] The present invention is achieved by Figure 4 The electrical principle diagram of the power supply voltage stabilization circuit shown in the figure divides the power supply voltage stabilization circuit into 6 parts. The first part is to convert the AC 220V voltage into a DC low voltage (number 1 in the figure). The second part is the voltage stabilization capacitor, which plays a role in stabilizing the converted DC low voltage (number 2 in the figure). The third part is to convert the DC low voltage into a DC voltage value of the required power. The resistance value of the adjustable resistor of the potentiometer RP is adjusted. The ratio of resistors R1, RP, R2 and R3 jointly determines the output voltage value of this circuit (number 3 in the figure). The fourth part is the voltage stabilization capacitor, which plays a role in stabilizing the converted DC voltage (number 4 in the figure). The fifth part is the fuse FU2, which plays a role in protecting the circuit to prevent excessive current from burning components (number 6 in the figure). The sixth part is the load of the circuit. (number 5 in the figure).

[0031] The power supply voltage stabilizing circuit can be arbitrarily adjusted within the adjustable range of 25V to 50V, has a large output current, and adopts an adjustable voltage stabilizing tube circuit, thereby obtaining a sufficiently stable output voltage.

[0032] Component selection: Transformer T1 uses 80W~100W, input AC220V, output double winding AC28V. Fuse FU1 uses 1A, and fuse FU2 uses 3A~5A. Potentiometer RP uses a common potentiometer of about 1W, with a resistance of 250K~330K; voltage stabilizing capacitor C1 uses a 3300μF / 35V electrolytic capacitor, voltage stabilizing capacitors C2 and C3 use 0.1μF monolithic capacitors, and voltage stabilizing capacitor C4 uses a 470μF / 35V electrolytic capacitor. Resistor R1 uses 180~220Ω / 0.1W~1W, and resistors R2, R4, and R5 use 10KΩ and 1 / 8W. NPN transistor V1 uses 2N3055, NPN transistor V2 uses 3DG180 or 2SC3953, and PNP transistor V3 uses 3CG12 or 3CG80.

[0033] See also Figure 5 The portable cutting construction method of the electromechanical wire and conduit of the present invention comprises the following steps:

[0034] Step 1: Prepare materials related to on-site construction, determine the three-level box that provides clean power 2, and clean the site to facilitate subsequent construction;

[0035] Step 2: Design the construction plan based on the actual project situation and relevant mechanical and electrical construction specifications, and conduct an audit to ensure the safety of on-site construction personnel;

[0036] Step 3: According to the required height of the working room, select the appropriate number of connecting rods to be spliced ​​to achieve the cutting height, assemble the telescopic connecting rod 4, similar to the principle of a fishing rod, each metal connecting rod has a built-in metal wire 44 connecting the first external metal ring 42 at the bottom of the outer wall and the second built-in metal ring 43 at the top of the inner wall to form a conductive circuit, and the power line 6 is connected from the bottom of the telescopic connecting rod 4. When adjusting the length, the first external metal ring 42 of the upper connecting rod is fully in contact with the first built-in metal ring 41 of the next connecting rod, so that the current is connected to the top electromagnetic induction cutting ring 5;

[0037] Step 4: Confirm the specifications of the wire tube to be cut. The wall thickness of wire tubes with different diameters is different. Adjust the control switch 1 according to the specifications of the wire tube. The control switch 1 has three gears: high, medium and low, which correspond to metal wire tubes with different wall thicknesses. After confirming the specifications of the wire tube, adjust the control switch 1 to the corresponding gear so that the power meets the cutting requirements;

[0038] Step 5: Connect the cleaning power supply 2 to the bottom of the telescopic connecting rod 4 through the power cord 6, and make two symmetrical points on the electromagnetic induction cutting ring 5 contact the wire tube at the same time, then turn on the switch to locally heat the wire tube through electromagnetic induction to achieve the purpose of cutting;

[0039] Step 6: After the cutting is completed, cut off the cleaning power supply 2 in time, fold the telescopic connecting rod 4 back, and untie the power cord 6;

[0040] Step 7: Recover the power cord 6, telescopic connecting rod 4, clean the power supply 2, electromagnetic induction cutting ring 5, and clean up the waste on site.

[0041] The working end is connected to a ring-shaped electromagnetic induction coil (i.e. Figure 4 The load in the steel pipe is heated to cut. The positioner RP is provided with three working gears, and different gears output different powers to cut wire pipes of different specifications. As for the above-mentioned floor height problem, the length is adjusted by the telescopic connecting rod 4. The telescopic connecting rod 4 is adjusted according to the floor height so that the electromagnetic induction cutting ring 5 can reach the cutting height, so that the operator can perform the secondary cutting task of the indoor roof wire pipe while standing on the ground, which is simple and safe to operate. The electromagnetic induction cutting ring 5 uses the principle of electromagnetic induction. After being wrapped around the wire pipe, it uses electromagnetic induction to heat the wire pipe, thereby achieving the purpose of cutting the wire pipe.

[0042] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0043] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A portable cutting device for electromechanical wire and conduit, comprising a clean power source (2), characterized in that: It also comprises a support rod connected to the cleaning power source (2) via a power line (6), the support rod having a conductive component connected to the power line (6) built therein, and a thermal electric cutting device connected to the conductive component being provided at the top of the support rod.

2. The portable cutting device for electromechanical wire and conduit according to claim 1, characterized in that: The thermal electric cutting device is an electromagnetic induction cutting ring (5), the top of the support rod is provided with a conductive rod (7) connected to the conductive component and arranged perpendicular to the support rod, the end of the conductive rod (7) away from the support rod is connected to the electromagnetic induction cutting ring (5), and the axis of the working surface of the electromagnetic induction cutting ring (5) is parallel to the axis of the support rod.

3. The portable cutting device for electromechanical wire and conduit according to claim 2, characterized in that: The support rod is a telescopic connecting rod (4), which is formed by connecting a plurality of connecting rods that are coaxially connected inside and outside in sequence, and the inner wall of the next connecting rod is matched and connected with the outer wall of the previous connecting rod.

4. The portable cutting device for electromechanical wire and conduit according to claim 3, characterized in that: A first internal metal ring (41) is provided at the top end of the inner wall of the next connecting rod, and a first external metal ring (42) is provided at the bottom end of the outer wall of the previous connecting rod. The first internal metal ring (41) of the next connecting rod and the first external metal ring (42) of the previous connecting rod are connected in cooperation. A second internal metal ring (43) is provided at the top end of the inner wall of the previous connecting rod. The first external metal ring (42) and the second internal metal ring (43) of the previous connecting rod are connected via a metal wire (44). The first internal metal ring (41), the first external metal ring (42), the metal wire (44) and the second internal metal ring (43) together constitute a conductive component.

5. The portable cutting device for electromechanical wire and conduit according to claim 4, characterized in that: The clean power supply (2) has a built-in power supply voltage stabilization circuit.

6. The portable cutting device for electromechanical wire and conduit according to claim 5, characterized in that: The telescopic connecting rod (4) is provided with a control switch (1) which is connected to the cleaning power source (2) via a power line (6).

7. The portable cutting device for electromechanical wire and conduit according to claim 6, characterized in that: A hoop head (3) is provided between two adjacent connecting rods.

8. A portable cutting construction method for electromechanical wire and conduit, characterized in that: The steps are as follows: S1. Prepare construction materials on site, clean the site, and provide clean power (2); S2. Design and review the construction plan to ensure the safety of on-site construction workers; S3. According to the required height of the working room, select a suitable number of connecting rods for splicing to achieve the cutting height, assemble the telescopic connecting rod (4), and each connecting rod has a built-in metal wire (44) connecting the first external metal ring (42) at the bottom end of the outer wall and the second built-in metal ring (43) at the top end of the inner wall to form a conducting circuit. The power line (6) is connected from the bottom of the telescopic connecting rod (4). When adjusting the length, the first external metal ring (42) of the upper connecting rod is fully in contact with the first built-in metal ring (41) of the lower connecting rod, so that the current is conducted to the top thermal cutting device; S4. Confirm the specifications of the wire tube to be cut, adjust the control switch (1) according to the specifications of the wire tube, and adjust the control switch (1) to a corresponding gear position so that the power meets the cutting requirements; S5. Connect the cleaning power source (2) to the bottom of the telescopic connecting rod (4) via the power cord (6), contact the thermal cutting device with the wire tube, and then turn on the control switch (1) to locally heat the wire tube through electromagnetic induction to achieve the purpose of cutting.

9. The portable cutting construction method for electromechanical wire and conduit according to claim 8, characterized in that: The thermal electric cutting device is an electromagnetic induction cutting ring (5). In the step S5, two symmetrical points on the electromagnetic induction cutting ring (5) are brought into contact with the wire tube at the same time.

10. The portable cutting construction method for electromechanical wire and conduit according to claim 9, characterized in that: The method further comprises step S6, after the cutting is completed, cutting off the cleaning power supply (2), folding and retracting the telescopic connecting rod (4), and untying the power cord (6); S7. Recover the power cord (6), telescopic connecting rod (4), clean power supply (2), and electromagnetic induction cutting ring (5), and clean up the site.

Images