Rapid power-off device for overhead insulated wire

Abstract

The utility model discloses a quick power-off device for an overhead insulated wire, which relates to the technical field of power-off of insulated wires and comprises a base station, an adjusting unit and a cutting-off unit, each adjusting unit comprises strip-shaped columns, a vertical lead screw, a bearing strip plate and a supporting column, the two strip-shaped columns are symmetrically and fixedly arranged on the top faces of the two sides of the base table and are hollow, and the vertical lead screw is movably arranged on the inner wall of one strip-shaped column; the cut-off unit comprises a bearing box, a two-way lead screw, a supporting plate, a cut-off tool plate and a servo motor. According to the utility model, the bearing batten in threaded connection with the vertical screw rod can be lifted and adjusted between the two strip-shaped columns through the strip-shaped limiting grooves under the stress effect, the supporting columns fixed on the bearing batten drive the cutting unit to be lifted and adjusted above the strip-shaped columns, and the cutting unit can be adjusted to be placed right below the overhead insulated wire. And the equipment can simply and flexibly adjust and place the cut-off unit.

Description

Technical Field

[0001] The utility model relates to the technical field of power-off of insulated conductors, in particular to a quick power-off device for overhead insulated conductors. Background Art

[0002] In actual transmission and distribution line maintenance and live work sites, it is often difficult to immediately cut off the power supply because this usually requires on-site personnel to contact the dispatching department by phone to accurately report the name and status of the on-site power outage equipment. After the dispatching department verifies the accuracy, it orders the operator to perform various steps such as power outage operations. By the time the power is actually shut off, the best time to rescue people has been missed. Secondly, the currently known forced power outage technologies are all based on bare wires and rely on manual handheld throwing to achieve short-circuiting. In actual on-site use, overhead wires are about 10 meters vertical to the ground, and the effectiveness of handheld throwing to achieve short-circuiting is poor. Furthermore, with the insulation transformation of the distribution network, the coverage rate of insulated overhead lines has reached more than 75%, and the above-mentioned short-circuit devices can no longer meet practical requirements.

[0003] Publication number CN117458331A discloses a forced rapid power-off device for overhead insulated conductors, which is mainly used in the field and includes a firing chamber, a conductor, a sight, a scope, a switch, a high-pressure gas cylinder, a base, a turntable, a bracket, a firing bracket, an adjustment knob, and a throwing unit. The bottom of the base is a turntable, the bottom of the turntable is connected to a bracket, the top of the base is rotatably connected to the firing bracket, the base has an adjustment knob, the adjustment knob is used to adjust the angle between the firing bracket and the base, the top of the firing bracket has two groups of firing chambers, the firing chambers are installed in the throwing units, and there are conductors between the throwing units. The firing chambers are connected to the high-pressure gas cylinder through an air pipe, and the switch controls the connection and disconnection of the air pipe and the high-pressure gas cylinder. The invention provides a forced rapid power-off device for overhead insulated conductors. It is easy and quick to deploy and use, can quickly and safely cut off the power supply, quickly rescue people who are electrocuted, reduce electric shock injuries, and ensure the life safety of workers.

[0004] Although the above scheme can cut off the power supply, the method of launching a throwing blade to cut off the power supply requires a complex adjustment and positioning structure to achieve precise operation, and its operating cost is also high. Therefore, we propose a quick power-off device for overhead insulated wires. Utility Model Content

[0005] The main purpose of the utility model is to provide a rapid power-off device for overhead insulated conductors. By setting an adjustment unit and a cutting unit, the utility model solves the problem that the method of launching a throwing blade to cut off the power supply requires a complex adjustment and positioning structure for precise operation, and its operating cost is also high.

[0006] In order to solve the above technical problems, the present utility model is implemented through the following technical solutions: a rapid power-off device for an overhead insulated conductor, comprising a base, and further comprising: an adjusting unit and a cutting unit arranged on the base;

[0007] The adjustment unit includes a strip column, a vertical screw rod, a bearing strip plate and a support column, the two strip columns are symmetrically fixedly arranged on the top surfaces of both sides of the base and are hollow inside, the vertical screw rod is movably arranged on the inner wall of one of the strip columns, and a strip limiting groove is opened on the side surface of the strip column facing the vertical central axis of the base, the bearing strip plate is located on the strip limiting groove and is threadedly connected to the vertical screw rod, one end of the support column is fixedly connected to the center of the top surface of the bearing strip plate, and a turntable is fixedly provided on one end of the vertical screw rod that movably extends to the outside of the strip column;

[0008] The cutting unit includes a carrying box, a bidirectional screw, a support plate, a cutting blade and a servo motor. The carrying box is fixedly arranged at the other end of the support column and is located above the strip column, and a strip groove is provided on the top surface of the carrying box. The bidirectional screw is movably arranged on the inner wall of one end of the carrying box. There are two support plates in total and they are located on the strip groove, and the two "convex"-shaped support plates are respectively matched with the positive and negative threads symmetrically arranged on the bidirectional screw. The two cutting blades are respectively fixedly arranged on the top of the two support plates and are located above the carrying box, and the two cutting blades are arranged opposite to each other. The servo motor is installed on the outside of the carrying box through a protective box and its output end is connected to the end face of the bidirectional screw.

[0009] Preferably, the adjustment unit further comprises a first guide rod, which is fixedly arranged on the inner wall of another strip column and movably penetrates the bearing strip plate.

[0010] Preferably, the cutting unit further comprises a second guide rod, which is fixedly arranged on the inner wall of the other end of the carrying box and movably passes through the two support plates.

[0011] Preferably, the bidirectional screw rod and the vertical screw rod are arranged perpendicular to each other.

[0012] Preferably, a positioning sleeve is fixedly provided at the corner of the top surface of the base, and a ground-inserting cone rod is movably placed on the positioning sleeve, and the ground-inserting cone rod extends to the bottom of the base.

[0013] Preferably, there are four positioning sleeves in total and they are distributed in a rectangular array, and the ground-inserting cone rods and the positioning sleeves are arranged in a one-to-one correspondence.

[0014] Compared with the prior art, the utility model of a quick power-off device for an overhead insulated conductor has the following beneficial effects:

[0015] 1. In the present invention, an adjustment unit is provided, and the vertical screw rod is held outside the strip column and rotated forward and backward. The load-bearing strip plate threadedly connected to the vertical screw rod can be subjected to force and can be raised and lowered between the two strip columns through the strip limit groove. A first guide rod is provided to guide the load-bearing strip plate to slide and rise and fall to cooperate with the support column and the cutting unit and provide auxiliary support for them. The support column fixed on the load-bearing strip plate then drives the cutting unit to rise and fall above the strip column. The cutting unit can be adjusted to be placed directly below the overhead insulated wire. The equipment is simple and flexible in adjusting and placing the cutting unit.

[0016] 2. In the utility model, by setting a cutting unit, the overhead insulated conductor can pass through the gap between the two cutting blades. The operation of the servo motor can control the bidirectional screw to rotate forward and backward on the carrier box. The two support plates threadedly connected to the bidirectional screw and in a "convex" shape can move relative to each other under the action of force to adjust the spacing on the strip groove. The second guide rod can cooperate with the two support plates to slide and translate and provide auxiliary support for them. The two cutting blades that are relatively arranged and located above the carrier box are driven by the support plates to adjust the spacing. The two cutting blades are brought close to each other to cut the overhead insulated conductor and cooperate with the rapid power-off process. The equipment is easy to operate and has low operating costs when combined with rapid power-off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a quick power-off device for overhead insulated conductors according to the utility model;

[0019] Figure 2 This is a schematic top view of the structure of a quick power-off device for an overhead insulated conductor according to the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the cross-section structure at the middle BB;

[0022] Figure 5 The utility model is a side structural schematic diagram of a quick power-off device for an overhead insulated conductor.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Abutment;

[0025] 2. Adjustment unit; 201. Strip column; 202. Vertical screw rod; 203. Load-bearing strip; 204. Support column; 205. First guide rod;

[0026] 3. Cutting unit; 301. Carrying box; 302. Bidirectional screw; 303. Support plate; 304. Cutting blade; 305. Servo motor; 306. Second guide rod;

[0027] 4. Positioning sleeve;

[0028] 5. Insert the cone rod into the ground. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example

[0032] like Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 As shown, a rapid power-off device for an overhead insulated conductor comprises a base 1, and further comprises: an adjusting unit 2 and a cutting unit 3 arranged on the base 1;

[0033] The adjustment unit 2 includes a strip column 201, a vertical screw rod 202, a bearing strip plate 203 and a support column 204. The two strip columns 201 are symmetrically fixed on the top surfaces of the base 1 on both sides and are hollow inside. The vertical screw rod 202 is movably set on the inner wall of one of the strip columns 201. A strip limiting groove is opened on the side surface of the strip column 201 facing the vertical central axis of the base 1. The bearing strip plate 203 is located on the strip limiting groove and is threadedly connected to the vertical screw rod 202. One end of the support column 204 is fixedly connected to the center of the top surface of the bearing strip plate 203.

[0034] The cutting unit 3 includes a carrier box 301, a bidirectional screw rod 302, a support plate 303, a cutting blade 304 and a servo motor 305. The carrier box 301 is fixedly arranged at the other end of the support column 204 and is located above the strip column 201, and a strip groove is opened on the top surface of the carrier box 301. The bidirectional screw rod 302 is movably arranged on the inner wall of one end of the carrier box 301. There are two support plates 303 and they are located on the strip groove. The two "convex" shaped support plates 303 are respectively matched with the positive and negative threads symmetrically arranged on the bidirectional screw rod 302. The two cutting blades 304 are respectively fixedly arranged on the top of the two support plates 303 and are located above the carrier box 301, and the two cutting blades 304 are arranged opposite to each other. The servo motor 305 is installed on the outside of the carrier box 301 through a protective box and its output end is connected to the end face of the bidirectional screw rod 302.

[0035] Furthermore, the adjustment unit 2 further includes a first guide rod 205 , which is fixedly arranged on the inner wall of another strip-shaped column 201 and movably penetrates the bearing strip plate 203 .

[0036] Furthermore, the bidirectional screw rod 302 and the vertical screw rod 202 are arranged perpendicular to each other.

[0037] Furthermore, a positioning sleeve 4 is fixedly provided at the corner of the top surface of the base 1 , and a ground-inserting cone rod 5 is movably placed on the positioning sleeve 4 , and the ground-inserting cone rod 5 extends to the bottom of the base 1 .

[0038] Furthermore, there are four positioning sleeves 4 distributed in a rectangular array, and the ground-inserting cone rods 5 are arranged in a one-to-one correspondence with the positioning sleeves 4 .

[0039] The adjustment unit 2 makes it easy and flexible to adjust and place the cutting unit 3 . Example

[0040] like Figure 1 、 Figure 2 、 Figure 4 as well as Figure 5 As shown, a rapid power-off device for an overhead insulated conductor comprises a base 1, and further comprises: an adjusting unit 2 and a cutting unit 3 arranged on the base 1;

[0041] The adjustment unit 2 includes a strip column 201, a vertical screw rod 202, a bearing strip plate 203 and a support column 204. The two strip columns 201 are symmetrically fixed on the top surfaces of the base 1 on both sides and are hollow inside. The vertical screw rod 202 is movably set on the inner wall of one of the strip columns 201. A strip limiting groove is opened on the side surface of the strip column 201 facing the vertical central axis of the base 1. The bearing strip plate 203 is located on the strip limiting groove and is threadedly connected to the vertical screw rod 202. One end of the support column 204 is fixedly connected to the center of the top surface of the bearing strip plate 203.

[0042] The cutting unit 3 includes a carrier box 301, a bidirectional screw rod 302, a support plate 303, a cutting blade 304 and a servo motor 305. The carrier box 301 is fixedly arranged at the other end of the support column 204 and is located above the strip column 201, and a strip groove is opened on the top surface of the carrier box 301. The bidirectional screw rod 302 is movably arranged on the inner wall of one end of the carrier box 301. There are two support plates 303 and they are located on the strip groove. The two "convex" shaped support plates 303 are respectively matched with the positive and negative threads symmetrically arranged on the bidirectional screw rod 302. The two cutting blades 304 are respectively fixedly arranged on the top of the two support plates 303 and are located above the carrier box 301, and the two cutting blades 304 are arranged opposite to each other. The servo motor 305 is installed on the outside of the carrier box 301 through a protective box and its output end is connected to the end face of the bidirectional screw rod 302.

[0043] Furthermore, the cutting unit 3 further includes a second guide rod 306 , which is fixedly disposed on the inner wall of the other end of the carrying box 301 and movably passes through the two support plates 303 .

[0044] Furthermore, the bidirectional screw rod 302 and the vertical screw rod 202 are arranged perpendicular to each other.

[0045] Furthermore, a positioning sleeve 4 is fixedly provided at the corner of the top surface of the base 1 , and a ground-inserting cone rod 5 is movably placed on the positioning sleeve 4 , and the ground-inserting cone rod 5 extends to the bottom of the base 1 .

[0046] Furthermore, there are four positioning sleeves 4 distributed in a rectangular array, and the ground-inserting cone rods 5 are arranged in a one-to-one correspondence with the positioning sleeves 4 .

[0047] The cutting unit 3 allows the device to be quickly powered off, making operation simple and cost-effective.

[0048] The following is the working principle of the utility model:

[0049] The vertical screw rod 202 is held outside the strip column 201 and rotated forward and backward. The load-bearing strip plate 203, which is threadedly connected to the vertical screw rod 202, is subjected to force to be raised and lowered between the two strip columns 201 through the strip limit groove. The first guide rod 205 guides the load-bearing strip plate 203 to slide and rise and fall to cooperate with the support column 204 and the cutting unit 3. The support column 204 fixed on the load-bearing strip plate 203 drives the cutting unit 3 to rise and fall above the strip column 201. The cutting unit 3 is adjusted and placed on the overhead insulated wire. Directly below, the servo motor 305 operates to control the bidirectional screw rod 302 to rotate forward and backward on the carrier box 301. The two support plates 303 threadedly connected to the bidirectional screw rod 302 are subjected to force to move relative to each other and adjust the spacing on the strip groove. The second guide rod 306 cooperates with the two support plates 303 to slide and translate. The two cutting blades 304 arranged opposite to each other and located above the carrier box 301 are driven by the support plates 303 to adjust the spacing. The two cutting blades 304 move close to each other to cut the overhead insulated wires and cooperate with the rapid power-off process.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A quick disconnect device for an overhead insulated conductor, comprising a base (1), characterized in that: Also includes: An adjustment unit (2) and a cutting unit (3) are arranged on a base (1); The adjustment unit (2) comprises a strip column (201), a vertical screw rod (202), a bearing strip plate (203) and a support column (204), wherein the two strip columns (201) are symmetrically fixedly arranged on the top surfaces of both sides of the base (1) and are hollow inside, and the vertical screw rod (202) is movably arranged on the inner wall of one of the strip columns (201), and a strip limiting groove is provided on the surface of the strip column (201) facing the vertical central axis of the base (1), the bearing strip plate (203) is located on the strip limiting groove and is threadedly connected to the vertical screw rod (202), and one end of the support column (204) is fixedly connected to the center of the top surface of the bearing strip plate (203); The cutting unit (3) comprises a carrying box (301), a bidirectional screw rod (302), a support plate (303), a cutting blade (304) and a servo motor (305). The carrying box (301) is fixedly arranged at the other end of the support column (204) and is located above the strip column (201). A strip groove is provided on the top surface of the carrying box (301). The bidirectional screw rod (302) is movably arranged on the inner wall of one end of the carrying box (301). The support plate (303) is provided with two parallel positions. On the strip groove, two "convex"-shaped support plates (303) are respectively matched with the positive and negative threads symmetrically arranged on the bidirectional screw rod (302), the two cutting blades (304) are respectively fixedly arranged on the top of the two support plates (303) and located above the carrier box (301), and the two cutting blades (304) are arranged opposite to each other, and the servo motor (305) is installed outside the carrier box (301) through a protective box, and its output end is connected to the end face of the bidirectional screw rod (302).

2. A rapid power-off device for an overhead insulated conductor according to claim 1, characterized in that: The adjustment unit (2) further comprises a first guide rod (205), wherein the first guide rod (205) is fixedly arranged on the inner wall of another strip column (201) and movably penetrates the bearing strip plate (203).

3. A rapid power-off device for an overhead insulated conductor according to claim 1, characterized in that: The cutting unit (3) further comprises a second guide rod (306), which is fixedly arranged on the inner wall of the other end of the carrier box (301) and movably passes through the two support plates (303).

4. A rapid power-off device for an overhead insulated conductor according to claim 1, characterized in that: The bidirectional screw rod (302) and the vertical screw rod (202) are arranged perpendicular to each other.

5. The rapid power-off device for an overhead insulated conductor according to claim 1, characterized in that: A positioning sleeve (4) is fixedly provided at the corner of the top surface of the base (1), a ground-inserting cone rod (5) is movably placed on the positioning sleeve (4), and the ground-inserting cone rod (5) extends to the bottom of the base (1).

6. A rapid power-off device for an overhead insulated conductor according to claim 5, characterized in that: There are four positioning sleeves (4) in total and they are distributed in a rectangular array, and the ground-inserting cone rods (5) are arranged in a one-to-one correspondence with the positioning sleeves (4).

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