CN210070888U

CN210070888U - Overhead transmission line sag measuring device

Info

Publication number: CN210070888U
Application number: CN201921349675.1U
Authority: CN
Inventors: 李海峰; 王伟斌; 于力; 王洪生; 宋丹; 崔积华; 杨会民; 欧希野; 阳薇
Original assignee: MAINTENANCE Co OF STATE GRID HEILONGJIANG ELECTRIC POWER Co; State Grid Corp of China SGCC
Current assignee: MAINTENANCE Co OF STATE GRID HEILONGJIANG ELECTRIC POWER Co; State Grid Corp of China SGCC
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-02-14
Anticipated expiration: 2029-08-20

Abstract

The utility model discloses an overhead transmission line sag measuring device, including the sensor, the sensor is installed in the inner wall on first tile top, the avris of first tile is provided with horizontal distribution's push rod, the top of second tile is coincide and is accomodating the groove in, and the inside of accomodating the groove sets up the spring, the internal surface of first tile is provided with the gasbag, and constitutes the cavity between gasbag and the first tile, the top welding of first tile outer wall has the operation box, and the inside of operation box is provided with horizontal distribution's valve block to the valve block is connected through vertical distribution's screw rod and knob, and screw rod and operation box are threaded connection simultaneously. This overhead transmission line sag measuring device utilizes the mode of the second tile that can slide from top to bottom, wholly carries out convenient dismantlement installation to the device, and the high laminating of tile and cable is ensured with the extrusion of atmospheric pressure to the accessible gasbag simultaneously, wholly improves measuring result's accuracy.

Description

Overhead transmission line sag measuring device

Technical Field

The utility model relates to a transmission line technical field specifically is an overhead transmission line sag measuring device.

Background

The sag measuring device is equipment for detecting the sag performance of a power transmission line by using an optical fiber Bragg grating sensor, and the phenomenon that the power transmission line is too loose or too tight is prevented.

The upper and lower two groups of tiles are used as main structures for connecting the sensor and the power transmission line in the prior art, but the connection between the upper and lower two tiles is inconvenient in the process of high-altitude operation, and after the tiles are used for a long time, the diameter of the surface of a cable changes and the surface of the tiles is worn, so that the fitting degree of the tiles and the cable is easily reduced, and the accuracy of a measuring result is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an overhead transmission line sag measuring device to it is inconvenient to provide the connection between two upper and lower tiles at the high altitude construction in-process in solving above-mentioned background art, and after long-time the use, the surface wearing and tearing of the change of cable skin diameter itself and tile lead to the laminating degree of tile and cable to reduce easily, influence the problem of measuring result's precision.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an overhead transmission line sag measuring device, includes the sensor, the sensor is installed in the inner wall on first tile top, and the trailing end connection of first tile has the second tile, the avris of first tile is provided with horizontal distribution's push rod, and the diameter of push rod is the same with the groove width of spout, the top of second tile is coincide and is accomodating the groove in, and the inside of accomodating the groove sets up the spring to accomodate the groove and set up the inside at first tile lateral wall, the internal surface of first tile is provided with the gasbag, and constitutes the cavity between gasbag and the first tile, the top welding of first tile outer wall has the operation box, and the inside of operation box is provided with horizontal distribution's valve piece to the valve piece is connected with the knob through vertical distribution's screw rod, and screw rod and operation box are threaded connection simultaneously.

Preferably, the push rod is connected with the side wall of the first tile in a sliding mode through the sliding groove, and the tail end of the push rod is fixedly installed on the surface of the second tile.

Preferably, the two ends of the spring are respectively fixedly connected with the first tile and the second tile, and the first tile and the second tile are both arc-shaped structures with the same center.

Preferably, the cavity is communicated with the inner space of the operation box through a channel, and the channels arranged at the top ends of the first tiles are vertically distributed.

Preferably, the upper end face of the valve block is rotatably connected with the bottom end of the screw rod, and the lower end face of the valve block is of an arc structure matched with the upper end face of the first tile.

Compared with the prior art, the beneficial effects of the utility model are that: this overhead transmission line sag measuring device utilizes the mode of second tile that can slide from top to bottom, wholly carries out convenient dismantlement installation to the device, and the high laminating of tile and cable is ensured with the extrusion of atmospheric pressure to accessible gasbag simultaneously, wholly improves measuring result's accuracy:

1. the push rod is used for conveniently sliding in the sliding groove in a manual mode and driving the second tile to synchronously stretch and slide, so that the device is conveniently and integrally installed on the cable in a high-altitude environment;

2. the use of cavity and gasbag structure is convenient for through the rotation of knob, with the operation box in the gas is pressed into the gasbag and make its inflation, ensure the stability that the whole device is connected with the cable, the too big space can not appear.

Drawings

FIG. 1 is a schematic side view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is an enlarged cross-sectional view taken along line A of FIG. 2 according to the present invention;

fig. 4 is a schematic diagram of the front section structure of the operation box of the present invention.

In the figure: 1. a first tile; 2. a second tile; 3. a sensor; 4. a push rod; 5. a chute; 6. a receiving groove; 7. a spring; 8. an air bag; 9. a cavity; 10. an operation box; 11. a valve block; 12. a screw; 13. a knob; 14. a channel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an overhead transmission line sag measuring device comprises a first tile 1, a second tile 2, a sensor 3, a push rod 4, a sliding groove 5, an accommodating groove 6, a spring 7, an air bag 8, a cavity 9, an operation box 10, a valve block 11, a screw 12, a knob 13 and a channel 14, wherein the sensor 3 is installed in the inner wall of the top end of the first tile 1, the tail end of the first tile 1 is connected with the second tile 2, the push rod 4 is horizontally distributed on the side of the first tile 1, the diameter of the push rod 4 is the same as the groove width of the sliding groove 5, the top end of the second tile 2 is matched in the accommodating groove 6, the spring 7 is arranged inside the accommodating groove 6, the accommodating groove 6 is arranged inside the side wall of the first tile 1, the air bag 8 is arranged on the inner surface of the first tile 1, the cavity 9 is formed between the air bag 8 and the first tile 1, the operation box 10 is welded on the top end of the outer wall of the first tile 1, and the inside of the operation box 10 is provided with a valve block 11 which is horizontally distributed, and the valve block 11 is connected with a knob 13 through a screw 12 which is vertically distributed, and the screw 12 is in threaded connection with the operation box 10.

Push rod 4 passes through the lateral wall sliding connection of spout 5 and first tile 1, and the tail end fixed mounting of push rod 4 is on the surface of second tile 2, spring 7's both ends respectively with

first tile

1 and 2 fixed connection of second tile, and first tile 1 and second tile 2 are the arc structure of the same centre of a circle, at the in-process that push rod 4 shifted up, second tile 2 also can move in accomodating groove 6 in figure 3, consequently, interval between two second tiles 2 can corresponding increase, with the whole direct card of device on the cable this moment, loosen push rod 4 again, the corresponding resilience of spring 7 after the bending, drive second tile 2 and move back, thereby accomplish the preliminary fixed of device.

The cavity 9 is communicated with the inner space of the operation box 10 through a channel 14, the channel 14 arranged at the top end of the first tile 1 is vertically distributed, the upper end face of the valve block 11 is rotatably connected with the bottom end of the screw 12, the lower end face of the valve block 11 is arranged into an arc-shaped structure matched with the upper end face of the first tile 1, a user can screw the knob 13 in the graph 1 and the graph 4, the screw 12 rotates correspondingly at the moment, the screw 12 can drive the valve block 11 to move downwards under the screw transmission effect of the screw and the operation box 10, air below the valve block 11 and inside the operation box 10 can be extruded at the moment, and enters the cavity 9 from the channel 14, the air bag 8 expands correspondingly and is extruded on a cable, and therefore the whole device is stably fixed.

The working principle is as follows: firstly, as shown in fig. 2, the distance between the bottom ends of the two second tiles 2 in the initial state is obviously smaller than the diameter of a cable of a power transmission line, so that when the device is required to be integrally installed, the push rod 4 in fig. 1 and 3 is firstly pushed by a finger to enable the push rod to slide upwards in the sliding groove 5 until the distance is the maximum, and in the process that the push rod 4 moves upwards, the second tiles 2 can also move in the accommodating groove 6 in fig. 3, so that the distance between the two second tiles 2 can be correspondingly increased, at the moment, the device is integrally and directly clamped on the cable, the push rod 4 is released, the bent spring 7 correspondingly rebounds to drive the second tiles 2 to move back, and the primary fixing of the device is completed;

after the above operations are completed, the user can screw the knob 13 in fig. 1 and fig. 4, at this time, the screw 12 correspondingly rotates, under the screw transmission effect with the operation box 10, the screw 12 will drive the valve block 11 to move downwards, at this time, the air below the valve block 11 and inside the operation box 10 will be squeezed, and enter the cavity 9 from the passage 14, the air bag 8 correspondingly expands and squeezes on the cable, thereby realizing the stable fixation of the whole device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an overhead transmission line sag measuring device, includes sensor (3), its characterized in that: the sensor (3) is installed in the inner wall of the top end of the first tile (1), the tail end of the first tile (1) is connected with the second tile (2), the side of the first tile (1) is provided with a horizontally distributed push rod (4), the diameter of the push rod (4) is the same as the groove width of the sliding groove (5), the top end of the second tile (2) is matched in the accommodating groove (6), a spring (7) is arranged inside the accommodating groove (6), the accommodating groove (6) is arranged inside the side wall of the first tile (1), the inner surface of the first tile (1) is provided with an air bag (8), a cavity (9) is formed between the air bag (8) and the first tile (1), the top end of the outer wall of the first tile (1) is welded with an operation box (10), a horizontally distributed valve block (11) is arranged inside the operation box (10), and the valve block (11) is connected with a knob (13) through a vertically distributed screw rod (12), meanwhile, the screw (12) is in threaded connection with the operation box (10).

2. The overhead transmission line sag measurement device according to claim 1, wherein: push rod (4) pass through the lateral wall sliding connection of spout (5) and first tile (1), and the tail end fixed mounting of push rod (4) is on the surface of second tile (2).

3. The overhead transmission line sag measurement device according to claim 1, wherein: the two ends of the spring (7) are fixedly connected with the first tile (1) and the second tile (2) respectively, and the first tile (1) and the second tile (2) are arc-shaped structures with the same circle center.

4. The overhead transmission line sag measurement device according to claim 1, wherein: the cavity (9) is communicated with the inner space of the operation box (10) through a channel (14), and the channels (14) arranged at the top end of the first tile (1) are vertically distributed.

5. The overhead transmission line sag measurement device according to claim 1, wherein: the upper end face of the valve block (11) is rotatably connected with the bottom end of the screw rod (12), and the lower end face of the valve block (11) is of an arc structure matched with the upper end face of the first tile (1).