Overhead transmission line distinguishing type phase sequence board

Abstract

The utility model provides an overhead transmission line distinguishing type phase sequence board, which comprises a mounting plate and three phase sequence boards fixed on the mounting plate in parallel, wherein the three phase sequence boards comprise an A-phase phase sequence board, a B-phase phase sequence board and a C-phase phase sequence board; the A-phase phase sequence board, the B-phase phase sequence board and the C-phase phase sequence board respectively comprise a horizontal board and a vertical board, the horizontal board and the vertical board are rotatably connected, and the angle between the horizontal board and the vertical board is adjustable. By means of the mode, the problems that an existing phase sequence board is low in identification rate, prone to being affected by severe weather and short in service life are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electric power transmission, especially to overhead transmission line type discerning phase sequence board. BACKGROUND

[0002] In the power system, the phase sequence board is used to indicate the phase sequence of the power line, which is very important for power line survey design, stringing construction, fault repair and unmanned aerial vehicle auxiliary operation. However, the traditional phase sequence board has the problems of low recognition rate, easy to be affected by bad weather, short service life and the like, which affects the safety and operation efficiency of the power system.

[0003] Disadvantages of the existing phase sequence board:

[0004] 1. The existing phase sequence board only provides positive phase sequence information, and the three phase sequence boards have the same appearance and are installed vertically to the ground, without the function of being identified by unmanned aerial vehicle from high altitude and the necessary reflective function in low light environment.

[0005] 2. The average recognition rate of the phase sequence board made by the existing method is only 22.3% at a long distance, and the average recognition rate is only 47.3% at a short distance, and the recognition rate tends to be stable after a certain time, which shows that the recognition rate is not high and cannot meet the actual demand. INVENTION CONTENTS

[0006] To solve the above problems, the utility model provides an overhead transmission line type discerning phase sequence board, which solves the problems of low recognition rate, easy to be affected by bad weather and short service life of the existing phase sequence board.

[0007] The main content of the utility model comprises: an overhead transmission line type discerning phase sequence board, comprising: a mounting plate, three phase sequence boards parallel fixed to the mounting plate: A-phase phase sequence board, B-phase phase sequence board and C-phase phase sequence board;

[0008] The A-phase phase sequence board, the B-phase phase sequence board and the C-phase phase sequence board respectively comprise a horizontal plate and a vertical plate, and the horizontal plate and the vertical plate are rotatably connected, and the angle between the horizontal plate and the vertical plate is adjustable.

[0009] Preferably, the horizontal plate comprises a horizontal first identification plate, a fixed plate provided on one side of the first identification plate, an installation groove provided between the fixed plate and the side edge of the first identification plate, a first fan-shaped plate provided below the first identification plate, a first hinge hole provided at the center of the first fan-shaped plate, and at least one first limiting hole provided at the outer circumference of the first fan-shaped plate.

[0010] Preferably, the vertical board comprises a vertical second identification board, a second sector plate is arranged at the upper portion of the second identification board and matches the first sector plate, a second hinge hole is arranged at the center of the second sector plate, the second hinge hole corresponds to the first hinge hole, and at least one second limiting hole is arranged at the outer circumference of the second sector plate and matches the first limiting hole in position and shape.

[0011] Preferably, the number of the first limiting hole or the second limiting hole is multiple.

[0012] Preferably, one of the first sector plate and the second sector plate is provided with a limiting slot, and the other is provided with a limiting block matching the limiting slot, and the limiting block can be clamped into the limiting slot.

[0013] Preferably, the A-phase phase sequence board, the B-phase phase sequence board and the C-phase phase sequence board are made of weather-resistant materials.

[0014] Preferably, the horizontal board and the vertical board of the A-phase phase sequence board, the B-phase phase sequence board and the C-phase phase sequence board are respectively coated with a reflective material.

[0015] Preferably, the horizontal board of the A-phase phase sequence board, the B-phase phase sequence board and the C-phase phase sequence board is respectively arranged as an isosceles trapezoid, a square or a full moon shape, and the vertical board of the A-phase phase sequence board, the B-phase phase sequence board and the C-phase phase sequence board is also respectively arranged as an isosceles trapezoid, a square or a full moon shape.

[0016] The utility model discloses the beneficial effect lies in:

[0017] The angle between the vertical board and the horizontal board in the utility model can be adjusted, which can facilitate the identification of observers of different angles and improve the identification rate.

[0018] The utility model has the characteristics of long service life, resistance to severe weather, low maintenance cost and low operation cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the three-dimensional structure schematic diagram of overhead transmission line type discernible phase sequence board preferred embodiment for the right view of overhead transmission line type discernible phase sequence board

[0020] Figure 2 It is the three-dimensional structure schematic diagram of overhead transmission line type discernible phase sequence board preferred embodiment for the right view of overhead transmission line type discernible phase sequence board

[0021] Figure 3 It is the three-dimensional structure schematic diagram of A-phase phase sequence board

[0022] Figure 4 It is the three-dimensional structure schematic diagram of A-phase phase sequence board another angle

[0023] Figure 5It is a horizontal direction card three-dimensional structure schematic diagram;

[0024] Figure 6 It is another angle of horizontal direction card three-dimensional structure schematic diagram;

[0025] Figure 7 It is a vertical direction card three-dimensional structure schematic diagram;

[0026] Reference signs:

[0027] Mounting plate, 2, A phase sequence card, 3, B phase sequence card, 4, C phase sequence card;

[0028] 21, horizontal direction card, 22, vertical direction card;

[0029] 211, mounting groove, 212, fixed plate, 213, first sector plate, 214, first hinge hole, 215, limiting block, 216, first limiting hole, 217, first identification plate;

[0030] 221, second hinge hole, 222, second sector plate, 223, second limiting hole, 224, limiting groove, 225, second identification plate. DETAILED DESCRIPTION

[0031] The technical scheme of the utility model is specifically described below in combination with the drawings.

[0032] As Figures 1 to 4 shown, an overhead transmission line type identification phase sequence card, comprising: mounting plate 1, three phase sequence cards parallelly fixed to the mounting plate 1: A phase sequence card 2, B phase sequence card 3, C phase sequence card 4; the A phase sequence card 2, B phase sequence card 3, C phase sequence card 4 respectively include horizontal direction card 21 and vertical direction card 22, and the horizontal direction card 21 and vertical direction card 22 are connected through a hinge, so that the angle between the horizontal direction card 21 and vertical direction card 22 is adjustable. The phase sequence card is generally perpendicular to the ground vertical plane at 15 degrees, and can also be adjusted from 0 degrees to 45 degrees according to the terrain or the needs of the observer.

[0033] As Figures 3 to 6 shown, the horizontal direction card 21 includes a horizontal direction first identification plate 217, a fixed plate 212 arranged on one side of the first identification plate 217, and the fixed plate 212 and the first identification plate 217 are welded or connected through bolts. A plurality of bolt holes are formed in the fixed plate 212, and a mounting groove 211 is arranged between the fixed plate 212 and the side edge of the first identification plate 217. During installation, the mounting plate 1 is clamped into the mounting groove 211, so that the distance between the mounting plate 1 and the side edge of the fixed plate 212 and the first identification plate 217 is not too large, and the fixed plate 212 and the mounting plate 1 are fixedly connected through bolts.

[0034] Further, the lower side of the first identification plate 217 is provided with a vertical first sector plate 213, the center of which is provided with a first hinge hole 214, and the outer circumference of which is provided with a first limiting hole 216.

[0035] As shown in the figure, the vertical plate 22 comprises a vertical second identification plate 225, the upper side of which is provided with a second sector plate 222 matching the first sector plate 213, the center of which is provided with a second hinge hole 221 corresponding to the first hinge hole 214, and the axes of the two are in the same line, so that the angle between the first sector plate 213 and the second sector plate 222 can be adjusted by inserting a rotating shaft into the first hinge hole 214 and the second hinge hole 221. Figure 7

[0036] Further, in order to fix the first sector plate 213 and the second sector plate 222, the outer circumference of the second sector plate 222 is provided with a plurality of second limiting holes 223, the positions and shapes of which match the first limiting hole 216. When adjusting the angle, the appropriate second limiting hole 223 can be selected, the first limiting hole 216 is matched with the second limiting hole 223, and a fixing shaft is inserted between the two, so that the angle between the first sector plate 213 and the second sector plate 222 can be fixed. When other angles are needed, other second limiting holes 223 are selected, and the fixing shaft is inserted between the first limiting hole 216 and the second limiting hole 223. The user can set the second identification plate 225 at different angles according to the terrain or observation needs.

[0037] The first identification plate 217 in the utility model is horizontally upward, mainly for observation by the unmanned aerial vehicle, the second identification plate 225 is vertical, mainly for observation by the ground observer, and the identification rate of the phase sequence plate is improved.

[0038] Further, the limiting block 215 and the limiting groove 224 at the first sector plate 213 and the second sector plate 222 mainly play a limiting supporting role. When the first sector plate 213 and the second sector plate 222 are fixed, the limiting block 215 can be clamped into the limiting groove 224, so that the strength of the fixing shaft in the first limiting hole 216 and the second limiting hole 223 is not enough to cause fracture, and the setting of the angle of the phase sequence plate is affected.

[0039] ​The A-phase phase sequence plate 2, the B-phase phase sequence plate 3 and the C-phase phase sequence plate 4 are all made of weather-resistant material, and water-deformable, metamorphic or flammable materials should not be used.

[0040] Further, the horizontal and vertical plate surfaces of the A-phase phase sequence plate 2, the B-phase phase sequence plate 3 and the C-phase phase sequence plate 4 are respectively coated with reflective material, so that the observers can better identify the phase sequence.

[0041] Further, the horizontal plates of the A-phase phase sequence plate 2, the B-phase phase sequence plate 3 and the C-phase phase sequence plate 4 are respectively set as isosceles trapezoids, squares and full moon shapes; and the vertical plates of the A-phase phase sequence plate 2, the B-phase phase sequence plate 3 and the C-phase phase sequence plate 4 are also respectively set as isosceles trapezoids, squares and full moon shapes, so that the shape difference can facilitate identification of different phase sequences.

[0042] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation by using the utility model specification and the attached drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. An overhead transmission line type identification phase sequence sign, characterized in that: include: A mounting plate, and three phase sequence plates fixed parallel to the mounting plate: a phase A phase sequence plate, a phase B phase sequence plate, and a phase C phase sequence plate; The A-phase phase sequence plate, the B-phase phase sequence plate, and the C-phase phase sequence plate respectively include a horizontal plate and a vertical plate, and the horizontal plate and the vertical plate are rotatably connected, and the angle between the horizontal plate and the vertical plate is adjustable; The horizontal sign includes a first horizontal identification plate, a fixed plate arranged on one side of the first identification plate, a mounting groove arranged between the fixed plate and the side of the first identification plate, and a first fan-shaped plate arranged below the first identification plate, a first hinge hole being provided at the center of the first fan-shaped plate, and at least one first limiting hole being provided at the outer circumference of the first fan-shaped plate.

2. The overhead transmission line type identification phase sequence sign according to claim 1, characterized in that: The vertical sign includes a vertical second identification plate, and a second fan-shaped plate matching the first fan-shaped plate is arranged on the upper part of the second identification plate. A second hinge hole is opened at the center of the second fan-shaped plate, and the second hinge hole corresponds to the first hinge hole. At least one second limiting hole is opened at the outer circumference of the second fan-shaped plate, and the position and shape of the second limiting hole match the first limiting hole.

3. The overhead transmission line type identification phase sequence sign according to claim 2, characterized in that: At least one of the first limiting holes or the second limiting holes has a plurality of openings.

4. The overhead transmission line type identification phase sequence sign according to claim 3, characterized in that: One of the first sector plate or the second sector plate is provided with a limiting slot, and the other is provided with a limiting block having a shape matching the limiting slot, and the limiting block can be snapped into the limiting slot.

5. The overhead transmission line type identification phase sequence sign according to claim 1, characterized in that: The A-phase phase sequence plate, the B-phase phase sequence plate, and the C-phase phase sequence plate are all made of weather-resistant materials.

6. The overhead transmission line type identification phase sequence sign according to claim 1, characterized in that: The horizontal and vertical surfaces of the A-phase phase sequence sign, the B-phase phase sequence sign, and the C-phase phase sequence sign are respectively coated with reflective materials.

7. The overhead transmission line type identification phase sequence sign according to claim 1, characterized in that: The horizontal signs of the A-phase sequence sign, the B-phase sequence sign, and the C-phase sequence sign are respectively arranged in isosceles trapezoid, square, and full moon shapes; the vertical signs of the A-phase sequence sign, the B-phase sequence sign, and the C-phase sequence sign are also respectively arranged in isosceles trapezoid, square, and full moon shapes.

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