Automatic power-off safety cable

Abstract

The utility model discloses an automatic power-off safety cable which comprises an input line and an output line, a power-off mechanism is arranged between the input line and the output line, the power-off mechanism comprises two oppositely-arranged mounting shells, the two mounting shells are connected through a buckle, conductive sliding blocks are arranged on the inner sides of the mounting shells, springs are arranged on the outer sides of the conductive sliding blocks, and the conductive sliding blocks are connected with the output line. A cylindrical electromagnet is arranged at one end of the conductive sliding block, a resistance wire is fixedly arranged at the solid end of the electromagnet, an insulating column is arranged at the other end of the conductive sliding block and connected through a buckle, a clamping piece is arranged on the outer side of the conductive sliding block, and a limiting plate is arranged at one end of each mounting shell and connected through a screw. The utility model has the advantages of simple structure, strong stability and convenience in maintenance, and can automatically disconnect the circuit when suffering from high voltage.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire and cable manufacturing, and in particular relates to a safety cable with automatic power-off. Background Art

[0002] Wires and cables play a vital role in power transmission and communication systems, and high-voltage electric shocks often cause serious damage and potential safety hazards to these systems. The high voltage electricity generated instantly will spread along the wires and cables, and the excessive voltage can instantly damage downstream electrical appliances. Therefore, the existence of automatic power-off components for wires and cables is particularly important. Utility Model Content

[0003] The utility model aims to provide a safety cable with automatic power-off in order to solve the problem that when common electric wires and cables are subjected to high voltage, the excessively high voltage easily damages the downstream electrical appliances and the like.

[0004] The utility model achieves the above-mentioned purpose through the following technical scheme: it includes an input line and an output line, a power-off mechanism is arranged between the input line and the output line, the power-off mechanism includes two mounting shells arranged opposite to each other, the two mounting shells are connected by a buckle, a conductive slider is arranged on the inner side of the mounting shell, a spring is arranged on the outer side of the conductive slider, a cylindrical electromagnet is arranged on one end of the conductive slider, a resistance wire is fixedly arranged on the solid end of the electromagnet, an insulating column is arranged on the other end of the conductive slider and connected by a buckle, a clamping piece is arranged on the outer side of the conductive slider, and a limit plate is arranged on one end of the two mounting shells and connected by screws.

[0005] Furthermore, a first groove, a second groove, and a third groove of different sizes are provided inside the installation shell, sliding grooves are provided at both ends of the outer side of the first groove, and a fixing groove is provided at the outer side of one end of the second groove.

[0006] Furthermore, the electromagnet is located on the inner side of the second groove, and two limit blocks are fixedly provided on the outer side of the electromagnet, and the limit blocks are located on the inner side of the fixing groove.

[0007] Furthermore, the conductive slider comprises a slide rod, one end of which is fixedly provided with a power-connecting circular plate, the power-connecting circular plate is located inside the first groove, the spring is located outside the slide rod, and the size of the spring is smaller than the power-connecting circular plate.

[0008] Furthermore, the clamping member includes an insulating ring, the insulating ring is connected to the insulating column by a buckle, connecting rods are fixedly provided on both sides of the insulating ring, and a holding block is fixedly provided at one end of the connecting rod.

[0009] Furthermore, a circular hole is provided in the middle of the limiting plate, and the size of the circular hole is the same as that of the insulating column.

[0010] Furthermore, the resistance wire is located inside the third groove, the resistance wire is connected to the output wire, and the core of the input wire passes through the insulating column and is connected to the conductive slider.

[0011] Beneficial effects: The utility model has reasonable design and has the following beneficial effects:

[0012] In the solution of the utility model, after the input line and the output line are energized, the slide bar is inserted into the inner side of the electromagnet, and the electromagnet attracts the slide bar to form a through circuit. When encountering a sudden high voltage, the resistance wire is affected by the high voltage and melts, so that the electromagnet is de-energized. After the spring electromagnet is de-energized, the spring pushes the power-connecting circular plate to make the slide bar detach from the inner side of the electromagnet, and at the same time, the position of the holding block changes to facilitate the operator to check. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a partial structural diagram of the power-off mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the installation shell structure of the utility model;

[0016] Figure 4 It is an exploded view of the local structure of the power-off mechanism of the utility model.

[0017] In the figure: 1-input line, 2-output line, 3-power-off mechanism;

[0018] 31-mounting shell, 32-conductive slider, 33-spring, 34-electromagnet, 35-resistance wire, 36-insulating column, 37-clamping piece, 38-limiting plate;

[0019] 311 - first groove, 312 - second groove, 313 - third groove, 314 - slide groove, 315 - fixed groove, 321 - slide rod, 322 - power connection circular plate, 341 - limit block, 371 - insulating ring, 372 - connecting rod, 373 - holding block, 381 - round hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Combination Figures 1 to 4A safety cable with automatic power-off is shown, comprising an input line 1 and an output line 2, a power-off mechanism 3 is provided between the input line 1 and the output line 2, the power-off mechanism 3 comprises two mounting shells 31 arranged opposite to each other, the two mounting shells 31 are connected by a buckle, a conductive slider 32 is provided on the inner side of the mounting shell 31, a spring 33 is provided on the outer side of the conductive slider 32, a cylindrical electromagnet 34 is provided at one end of the conductive slider 32, a resistance wire 35 is fixedly provided at the solid end of the electromagnet 34, an insulating column 36 is provided at the other end of the conductive slider 32 and connected by a buckle, a clamping piece 37 is provided on the outer side of the conductive slider 32, and a limit plate 38 is provided at one end of the two mounting shells 31 and connected by screws.

[0022] The installation shell 31 is provided with a first groove 311, a second groove 312, and a third groove 313 of different sizes. The first groove 311 is provided with sliding grooves 314 at both ends of the outer side. The second groove 312 is provided with a fixing groove 315 at one end of the outer side, so as to facilitate the installation of the conductive slider 32, the spring 33, the electromagnet 34, and the resistance wire 35. The spring 33 and the electromagnet 34 are located in the second groove 312.

[0023] The electromagnet 34 is located inside the second groove 312, and two limit blocks 341 are fixedly provided outside the electromagnet 34. The limit blocks 341 are located inside the fixing groove 315. The fixing groove 315 and the limit blocks 341 clamp the electromagnet 34 to prevent it from slipping.

[0024] The conductive slider 32 includes a slide bar 321, one end of which is fixedly provided with a power-connecting circular plate 322, which is located inside the first groove 311, and a spring 33 is located outside the slide bar 321, which is smaller than the power-connecting circular plate 322. The slide bar 321 slides in the second groove 312, and a through circuit is formed when the slide bar 321 is inserted into the inner side of the electromagnet 34. When the electromagnet 34 is powered off, the spring 33 pushes the power-connecting circular plate 322 to disengage the slide bar 321 from the inner side of the electromagnet 34.

[0025] The clamping member 37 includes an insulating ring 371, and the insulating ring 371 is connected to the insulating column 36 by a buckle. Connecting rods 372 are fixedly provided on both sides of the insulating ring 371, and a holding block 373 is fixedly provided at one end of the connecting rod 372. The connecting rod 372 is inside the slide groove 314, and the holding block 373 is pinched to drive the insulating ring 371 and the insulating column 36 to slide along the slide groove 314, so as to control the conductive slider 32 to be inserted into or separated from the electromagnet 34;

[0026] A circular hole 381 is provided in the middle of the limiting plate 38. The size of the circular hole 381 is the same as that of the insulating column 36. The insulating column 36 can move in the circular hole 381 to increase the stroke of the conductive slider 32. At the same time, the circular hole 381 can clamp the power-connecting circular plate 322 to limit the stroke of the conductive slider 32.

[0027] The resistance wire 35 is located inside the third groove 313 and is connected to the output line 2. The core of the input line 1 passes through the insulating column 36 and is connected to the conductive slider 32. The resistance wire 35 is melted by the high voltage and the electromagnet 34 is de-energized.

[0028] Working principle: When the utility model is in use, after the input line and the output line are energized, the holding block is pinched to drive the insulating ring and the insulating column to slide along the slide groove, and the control slide rod is inserted into the inner side of the electromagnet. The electromagnet absorbs the slide rod to form a through circuit. When encountering sudden high voltage, the resistance wire is affected by the high voltage and melts, causing the electromagnet to cut off the power. After the spring electromagnet is cut off, the spring pushes the power-connecting circular plate to make the slide rod detach from the inner side of the electromagnet. At the same time, the position of the holding block changes to facilitate the operator's inspection.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A safety cable with automatic power-off, comprising an input line (1) and an output line (2), characterized in that: A power-off mechanism (3) is provided between the input line (1) and the output line (2), the power-off mechanism (3) comprising two mounting shells (31) arranged opposite to each other, the two mounting shells (31) being connected by a buckle, a conductive slider (32) being provided on the inner side of the mounting shell (31), a spring (33) being provided on the outer side of the conductive slider (32), a cylindrical electromagnet (34) being provided on one end of the conductive slider (32), a resistance wire (35) being fixedly provided on the solid end of the electromagnet (34), an insulating column (36) being provided on the other end of the conductive slider (32) and being connected by a buckle, a clamping piece (37) being provided on the outer side of the conductive slider (32), and a limit plate (38) being provided on one end of the two mounting shells (31) and being connected by screws.

2. The automatic power-off safety cable according to claim 1, characterized in that: A first groove (311), a second groove (312), and a third groove (313) of different sizes are provided inside the installation shell (31); sliding grooves (314) are provided at both ends of the outer side of the first groove (311); and a fixing groove (315) is provided at one end of the outer side of the second groove (312).

3. The automatic power-off safety cable according to claim 2, characterized in that: The electromagnet (34) is located inside the second groove (312), and two limit blocks (341) are fixedly provided outside the electromagnet (34), and the limit blocks (341) are located inside the fixing groove (315).

4. The automatic power-off safety cable according to claim 3, characterized in that: The conductive slider (32) comprises a slide bar (321), one end of which is fixedly provided with a power-connecting circular plate (322), the power-connecting circular plate (322) being located inside the first groove (311), the spring (33) being located outside the slide bar (321), and the size of the spring (33) being smaller than the power-connecting circular plate (322).

5. The automatic power-off safety cable according to claim 4, characterized in that: The clamping member (37) comprises an insulating ring (371), the insulating ring (371) is connected to the insulating column (36) via a buckle, connecting rods (372) are fixedly provided on both sides of the insulating ring (371), and a holding block (373) is fixedly provided at one end of the connecting rod (372).

6. The automatic power-off safety cable according to claim 5, characterized in that: A circular hole (381) is provided in the middle of the limiting plate (38), and the size of the circular hole (381) is the same as that of the insulating column (36).

7. The automatic power-off safety cable according to claim 6, characterized in that: The resistance wire (35) is located inside the third groove (313), the resistance wire (35) is connected to the output wire (2), and the core of the input wire (1) passes through the insulating column (36) and is connected to the conductive slider (32).

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