CN204588599U - A kind of portable electric test connection insulated lifting device - Google Patents

Abstract

The utility model relates to a lifting device, in particular to a portable electrical test wiring insulation lifting device. Including casters and gears, the two shafts fixed on the box are respectively provided with gears I and II meshing with each other; any one of the gears I and II is provided with a rocker at the end of the shaft; the gears The circumferential matching positions of I and II are respectively fixedly connected with the poles at the lower ends of the detachable brackets; the poles at the upper end of the detachable brackets are connected with the fixing clips, and the bottom of the box is provided with four casters. The utility model overcomes the disadvantages of unsafety, low efficiency, and large consumption of physical strength in the process of manually lifting the insulating rod. It has the characteristics of convenient carrying, detachable bracket, good mechanical strength, stable lifting, large load capacity, fast and labor-saving, safe and reliable, and high working efficiency. Thereby meeting the needs of power frequency parameter testing and other protection wiring of power transmission and transformation lines, and is easy to popularize and use.

Description

A portable electrical test wiring insulation lifting device

technical field

The utility model relates to a lifting device, in particular to a portable electrical test wiring insulation lifting device.

Background technique

The line parameters of electrical equipment in power plants and substations are the basis for calculating grid flow, short-circuit current, voltage, stability, and relay protection setting. Whether they are correct or not is of great significance to ensure the safe and stable operation of the grid. In order to have a true and accurate grasp of the various parameters of the line, it is necessary to carry out specific measurements on the line parameters of the line. This is of great significance for accurately assessing the safety of substations and ensuring the reliable operation of power system equipment. In the process of line parameter testing and other special protection wiring and other protection wiring, according to the different requirements of the measured parameters, in the process of positive sequence impedance and zero sequence impedance testing, it is necessary to use three-phase grounding wires to test the three-phase Short-circuit and three-phase short-circuit to ground to meet the corresponding test conditions. For example, when performing positive sequence impedance test, use the corresponding voltage class insulating rod according to the line voltage level, and fix the grounding wire on the insulating rod to hang the grounding wire. In the traditional positive-sequence impedance test, the tester lifts the insulating rod to hang the ground wire. Since it is a three-phase line, the ground wire needs to be hung three times. In the process of hanging the ground wire, due to the height limit of the insulating rod and manpower Restrictions often make the grounding wire not fully in contact with the line firmly, which makes the testers consume a lot of physical strength to hang the grounding wire repeatedly to meet the test conditions. There are the following problems in the process of hanging the ground wire in the traditional line parameter test: first, manual lifting of the insulating rod (the 220kV insulating rod consists of four sections, a total of 8 meters long, and the weight can reach 10 kg after the electrical test line is used) consumes physical strength, The firmness of the ground wire, usually the firmness of the ground wire, cannot meet the test requirements; the second is that the tester hangs the electrical test line (shake after the insulating rod exceeds 6 meters), which will cause the electrical equipment connected to the line to shake, which is easy to The third is that the contact area between the grounding wire and the circuit is poor, resulting in unstable test data; the fourth is that it requires a lot of personnel, usually 2-3 people to complete, and the work efficiency is low.

Contents of the invention

In order to solve the above technical problems, the utility model provides a portable electrical test wiring insulation lifting device, which is easy to carry, easy to operate, adjustable in length, and can quickly install the ground wire according to the needs of the test personnel, and the working High efficiency and low cost.

In order to achieve the above object, the technical solution of the utility model to solve technical problems is:

A portable electrical test wiring insulation lifting device, including casters and gears, which are respectively provided with gears I and II meshing with each other on two shafts fixed on the box; the shaft end of any one of the gears I and II There is a rocker at the end; the circumferential adaptation positions of the gears I and II are respectively fixedly connected with the poles at the lower end of the detachable bracket; the poles at the upper end of the detachable bracket are connected with the fixing clip, and the box There are four casters at the bottom of the body.

The detachable bracket is composed of several struts intersecting in pairs and connected by bolts.

The detachable bracket is made of insulating material.

The fixing clip adopts a "concave" shape structure.

The casters are insulated universal casters with fixed clips.

Compared with the prior art, the utility model has the following beneficial effects due to the adoption of the above-mentioned technical scheme:

The utility model overcomes the disadvantages of unsafety, low efficiency, and large consumption of physical strength in the process of manually lifting the insulating rod. It has the characteristics of convenient carrying, detachable bracket, good mechanical strength, stable lifting, large load capacity, fast and labor-saving, safe and reliable, and high working efficiency. Therefore, it meets the needs of power frequency parameter testing and other protection wiring of power transmission and transformation lines, and is easy to popularize and use.

Description of drawings

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

Fig. 2 is a left view structural diagram of Fig. 1 of the utility model.

The main parts in the picture: fixed clip 1, detachable bracket 2, bolt 3, rocker 4, box 5, gear Ⅰ 6, caster 7, gear Ⅱ 8.

Detailed ways

The utility model will be further described in detail below in conjunction with specific embodiments, but the protection scope of the utility model is not limited by the specific embodiments, and the claims shall prevail. In addition, on the premise of not violating the technical solution of the utility model, any modification or change made to the utility model that is easily realized by those skilled in the art will fall within the scope of claims of the utility model.

Example 1

A portable electrical test wiring insulation lifting device as shown in Figure 1 and Figure 2 includes casters and gears. Two shafts are arranged in the box body 5 and fixed on the wall of the box body 5. The two shafts are respectively There are gear I6 and gear II8 which mesh with each other, and the end of the shaft of gear I8 protrudes from the shaft of the box body 5. A rocker 4 is fixed on the shaft; on the matching positions of the circumferential surfaces of gear I6 and gear II8, bolts are respectively used to It is connected with the support rod at the lower end of the detachable support 2 made of insulating material; the support rod at the upper end of the detachable support 2 is connected with the "concave"-shaped fixing clip 1 through bolts, and the bottom of the box body 5 is provided with four fixed clips. Clamp insulated swivel casters7.

Example 2

A portable insulation lifting device for electrical test wiring, including casters and gears. Two shafts are arranged in the box body 5 and fixed on the wall of the box body 5. The two shafts are respectively equipped with mutually meshing gears I6, gears Ⅱ8, the shaft end of the gear Ⅰ6 sticks out of the box body 5, and the rocker 4 is fixed on the shaft; on the matching position of the circumferential surface of the gear Ⅰ6 and the gear Ⅱ8, respectively, the detachable brackets made of bolts and insulating materials are used The poles at the lower ends of the 2 are connected; the poles at the upper end of the detachable bracket 2 are connected with the fixing clip 1 through bolts 3, and the bottom of the box body 5 is provided with four insulating universal casters 7 with fixing clips.

During the specific use of the utility model: the fixed clip 1 is driven by the manual operation rocker 4 to lift the gear I6 and the gear II8. According to the lifting principle, the gear I6 and the gear II8 drive the detachable bracket 2. The detachable support 2 can be raised to the required height as the rocking bar 4 is turned clockwise, and the test wiring is fixed on the line after the fixing clip 1 reaches the required height. On the contrary, after the ground wire is installed, turn the rocker 4 counterclockwise to lower the detachable bracket 2 and remove the fixing clip 1 .

Install another phase sequence test wiring at another location. Under normal circumstances, the line parameter test and other protective wiring need three installation test wiring and three disassembly test wiring. The number of poles of the detachable support 2 is determined according to the specific height requirements of the test, and is fixed by bolts 3.

The utility model has the advantages of simple and reasonable structure, strong practicability and good effect, and is beneficial to popularization and application.

Claims (5)

1. A portable electrical test wiring insulation lifting device, including casters and gears, characterized in that: the two shafts fixed on the box (5) are respectively provided with gears I and II (6, 8) meshing with each other; The shaft end of any one of the gears I, II (6, 8) is provided with a rocker (4); the matching positions of the gears I, II (6, 8) are fixedly connected with detachable brackets ( 2) A support rod at the lower end; the support rod at the upper end of the detachable bracket (2) is connected to the fixing clip (1), and four casters (7) are provided at the bottom of the box body (5). 2. A portable electrical test wiring insulation lifting device according to claim 1, characterized in that: the detachable bracket (2) is composed of several poles intersecting each other and connected by bolts (3) . 3. A portable electrical test wiring insulation lifting device according to claim 1 or 2, characterized in that: the detachable bracket (2) is made of insulating material. 4. A portable electrical test wiring insulation lifting device according to claim 1, characterized in that: said fixing clip (1) adopts a "concave" shape structure. 5. A portable insulation lifting device for electrical test wiring according to claim 1, characterized in that: said casters (7) are insulated universal casters with fixed clips.