CN204405009U - A kind of power transmission line sag measurement mechanism - Google Patents

Abstract

A transmission line sag measurement device, which includes a main crossbar, an auxiliary crossbar, a fixing part, an infrared emitting part and an infrared reflecting part; the main crossbar and the auxiliary crossbar are respectively fixed at two On the utility pole; the infrared emitting part is arranged at one end of the main crossbar; the infrared reflecting part is arranged on the auxiliary crossbar relative to the infrared emitting part; the infrared emitting part includes an infrared emitter and a centering mirror; the pairing The middle mirror is fixed on the main cross bar; the centering mirror is provided with a cross mark; the infrared emitting part is arranged on the centering mirror. The utility model has the advantages of simple structure and convenient operation, and can greatly save measuring time and measuring personnel compared with traditional measuring methods. Not only can effectively improve the construction efficiency, but also has a high accuracy.

Description

A transmission line sag measurement device

technical field

The utility model relates to a measuring device, in particular to a sag measuring device suitable for power transmission lines, and belongs to the technical field of electric power construction.

Background technique

With the continuous development of the electric power industry, while facing the increase of circuit construction operations, the requirements for the erection of transmission lines have been further improved, making the erection work more rigorous and scientific. Among them, there are further regulations on the sag of transmission lines in the construction of erecting transmission lines and tight lines, so that the sag of transmission lines cannot exceed the position of the next meter of the cross arm. At present, the device for detecting the sag of transmission lines in the industry uses two crossbars, which are respectively fixed on two utility poles, and are located one meter below the crossarms, and then use the principle of three points and one line , when the horizontal points on the two crossbars and the sag point of the transmission line are on the same line, determine the sag position of the transmission line. Although the problem of sag measurement is effectively solved, the above-mentioned device requires complex manual binding operations during installation, which not only takes a long time, is not securely bound, but is also very easy to cause the observation of the transmission line due to uneven levels on both sides. , Adjustment accuracy. In addition, since the adjustment of the sag of the transmission line is realized by the operator observing the above three points for a long time with naked eyes, this method is very easy to make the eyes of the operator tired and blurred, so the measurement of the sag of the transmission line A certain deviation is caused, and the accuracy of the sag of the transmission line cannot be guaranteed.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a device with simple structure, convenient installation and the ability to improve the efficiency and accuracy of sag measurement of transmission lines.

The problem described in the utility model is solved by the following technical solutions:

A transmission line sag measurement device, which includes a main crossbar, an auxiliary crossbar, a fixing part, an infrared emitting part and an infrared reflecting part; the main crossbar and the auxiliary crossbar are respectively fixed at two On the utility pole; the infrared emitting part is arranged at one end of the main crossbar; the infrared reflecting part is arranged on the auxiliary crossbar relative to the infrared emitting part; the infrared emitting part includes an infrared emitter and a centering mirror; the pairing The middle mirror is fixed on the main crossbar; the centering mirror is provided with a cross mark; the infrared emitting part is arranged on the centering mirror.

The above-mentioned power transmission line sag measurement device, the infrared emitting part includes a reflective prism and a centering rod, and the reflective prism is fixed on the auxiliary cross bar; one end of the centering rod is fixed on the top of the reflective prism, and it is aligned with the central axis of the reflective prism vertical set.

In the above transmission line sag measurement device, the fixing part is a hoop, and the hoop is composed of a hoop, a rod holder, an adjusting bolt, a connecting slot and a connecting buckle; the hoop is an arc-shaped structure, and its opening The two ends form a ring shape by connecting the card groove and the connecting buckle; the rod support is a concave structure, the number is two, and is fixed on the side wall of the hoop at intervals; the adjusting bolt and the rod support on the Threaded through-hole threaded connection.

The above-mentioned transmission line sag measurement device is provided with a rotating table, and the rotating table is fixed on the main crossbar, and its table is connected to the centering mirror in rotation.

The above-mentioned transmission line sag measuring device is provided with a level, and the level is respectively fixed on the central positions of the main cross bar and the auxiliary cross bar.

The above-mentioned sag measurement device for transmission lines is provided with an additional anti-slip pad, the anti-slip pad is arranged on the inner wall of the hoop, and the anti-slip pad is made of rubber.

The above transmission line sag measuring device is provided with a scale, and the scales are respectively arranged on the main crossbar and the auxiliary crossbar, and the zero scale point of the scale is set at one end of the main crossbar and the auxiliary crossbar.

The utility model uses the infrared emitting part and the infrared receiving part to achieve the purpose of measuring the sag of the line through the emitted infrared rays. Compared with the previous comparison method of three points and one line, it not only avoids the measurement caused by human senses Moreover, the measurement line formed by infrared light is more intuitive, and the adjustment of line sag can be completed by a single operation, which not only reduces personnel consumption, but also is convenient to operate, and can effectively improve the measurement of line sag efficiency. In addition, in order to further improve the installation efficiency and precision control, the utility model can quickly fix the main and auxiliary crossbars on the utility poles through special hoops. Combined with the use of adjusting bolts and spirit levels, the levelness of the main and auxiliary cross bars can be effectively adjusted, thereby improving the overall measurement accuracy.

The utility model has the advantages of simple structure and convenient operation, and can greatly save measuring time and measuring personnel compared with traditional measuring methods. Not only can effectively improve the construction efficiency, but also has a high accuracy. ; In addition, the infrared emitting part of the utility model is designed to be rotatable, so that it can not only be used for line sag measurement in horizontal utility poles, but also suitable for measurement in oblique utility poles.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic diagram of the K direction in Figure 1 (not to scale);

Fig. 3 is a schematic diagram of the infrared emitting part and the infrared receiving part of the present invention (not to scale).

The list of labels in the figure is: 1. Telephone pole, 2. Electric wire, 3. Reflecting prism, 4. Centering rod, 5. Hoop, 6. Main crossbar, 7. Adjusting bolt, 8. Rod support, 9. Rotary table, 10. Infrared emitter, 11. Centering mirror, 12. Sub-bar, 13. Anti-skid pad, 14. Connection slot, 15. Connection buckle, 16. Level ruler, 17. Scale, 18. connecting strap.

Detailed ways

Referring to Fig. 1, 2 and 3, the utility model comprises main cross bar 6, auxiliary cross bar 12, fixture, infrared emission part and infrared reflection part; Described main cross bar 6 and auxiliary cross bar 12 are fixed on respectively by fixture On the two utility poles 1 of relative position, and be positioned at the position of one meter below the cross arm of utility pole 1; Described infrared emitting part is arranged on one end of main crossbar 6, is used for emitting infrared rays; Described infrared reflective part is relatively infrared The emitting part is arranged on the auxiliary cross bar 12 for reflecting the infrared rays back so as to be visible to the human eye; the infrared emitting part includes a rotary table 9, an infrared emitter 10 and a centering mirror 11; the rotary table 9 is fixed on One end of the main crossbar 6, and its table is connected with the centering mirror 11 in rotation, so that the centering mirror can be rotated at multiple angles, so that it can also be applied simultaneously when measuring the line sag of the utility pole installed obliquely; The centering mirror 11 is provided with a cross mark, which is used in conjunction with the centering rod, so that the infrared emitting part and the infrared receiving part can achieve the purpose of centering. The eyeglass of the centering mirror is a convex lens, which can have certain hyperopia function. The infrared emitter is arranged on the centering mirror 11 .

In addition, the infrared reflective part used in conjunction with the infrared emitting part in the present invention includes a reflective prism 3 and a centering rod 4 . Described reflective prism 3 is fixed on the auxiliary cross bar 12, and the effect of described reflective prism is to utilize reflective prism (or reflective sheet) as reflector, makes reflective prism receive the infrared ray that red emitter sends, and it is reflected back, makes It is visible to the human naked eye; its principle is realized through the law of reflection and refraction of light. One end of the centering rod 4 is fixed on the top of the reflective prism 3, and it is vertically arranged with the central axis of the reflective prism 3.

The utility model effectively simplifies the installation work and improves the work efficiency through the characteristic hoop. The hoop is composed of a hoop 5, a rod support 8, an adjusting bolt 7, a connecting slot 14 and a connecting buckle 15; The slot 14 is connected to one end of the connecting buckle 15 , and the buckled connecting slot 14 and the connecting buckle 15 form a ring shape with the hoop. The rod support 8 is a concave structure, the number is two, and the interval is fixed on the side wall of the hoop 5; The effect of solid main and auxiliary cross bar can also be used in conjunction with the added level ruler 16 to reach the purpose of adjusting the level of main and auxiliary cross bar. The level 16 is fixed on the central position of the main cross bar 6 and the auxiliary cross bar 12 respectively.

In addition, one end of the connection buckle 15 or one end of the connection slot 14 can also be provided with an adjustable opening slot for adjusting the length of the connection belt, so that it can be applied to utility poles of various diameters.

In order to enhance practicality and safety, the utility model also adds an anti-slip pad 13 and a scale 17, and the anti-slip pad 13 is arranged on the inner wall of the hoop 5 to increase the friction between the hoop and the utility pole , to prevent slipping. The anti-skid pad 13 is rubber product. The scales 17 are respectively arranged on the main and auxiliary crossbars and can be used for measurement, so that it is no longer necessary to measure the fixed positions of the main and auxiliary crossbars through other measuring tools. Described scale 17 takes one end of main cross bar 6 and auxiliary cross bar 12 as zero scale point.

Claims (7)

1. a power transmission line sag measurement mechanism, is characterized in that: it comprises main cross bar (6), secondary cross bar (12), fixture, infrared emission part and infrared external reflection part; Described main cross bar (6) and secondary cross bar (12) are fixed on two wire bars (1) of relative position respectively by fixture; Described infrared emission part is located at one end of main cross bar (6); Described infrared external reflection part is arranged on secondary cross bar (12) relative to infrared emission part; Described infrared emission part comprises infrared transmitter (10) and centering glass (11); Described centering glass (11) is fixed on main cross bar (6), and described centering glass (11) is provided with cross; Described infrared emission part is arranged on centering glass (11).

2. power transmission line sag measurement mechanism according to claim 1, it is characterized in that: infrared emission part comprises reflecting prism (3) and centering rod (4), described reflecting prism (3) is fixed on secondary cross bar (12); One end of described centering rod (4) is fixed on the top of reflecting prism (3), and it and reflecting prism (3) central axis are arranged.

3. power transmission line sag measurement mechanism according to claim 1 and 2, it is characterized in that: described fixture is anchor ear, described anchor ear by garter spring (5), lever bracket (8), adjusting bolt (7), connect draw-in groove (14) and be connected buckle (15) and form; Described garter spring (5) is arcuate structure, and its opening two ends are by connecting draw-in groove (14) and being connected buckle (15) formation toroidal; Described lever bracket (8) is concave structure, and quantity is two settings, and interval is fixed on the sidewall of garter spring (5); Described adjusting bolt (7) is threaded with the screw thread via hole on lever bracket (8).

4. power transmission line sag measurement mechanism according to claim 3, is characterized in that: set up universal stage (9), and described universal stage (9) is fixed on main cross bar (6), and its table top is rotatably connected with centering glass (11).

5. power transmission line sag measurement mechanism according to claim 4, is characterized in that: set up surveyor's staff (16), and described surveyor's staff (16) is separately fixed on the center of main cross bar (6) and secondary cross bar (12).

6. power transmission line sag measurement mechanism according to claim 5, is characterized in that: set up slipmat (13), and described slipmat (13) is arranged on garter spring (5) inwall, and described slipmat (13) is rubber.

7. power transmission line sag measurement mechanism according to claim 6, it is characterized in that: set up rule (17), described rule (17) is separately positioned on main cross bar and secondary cross bar, and described rule (17) is zero graduation point with one end of main cross bar (6) and secondary cross bar (12).