CN205643488U - Voltage measuring device - Google Patents

Abstract

The utility model relates to the technical field of voltage measurement, in particular to a voltage measuring device, which includes a first measuring nib fixed on the upper rod end of a telescopic rod. The telescopic rod is made of insulating material. Adjustable coordination, a support rod is suspended from the telescopic rod, and a second measuring pen is provided on the hanging end of the support rod. The second measuring pen and the end of the support rod form a rotational adjustable fit. The first and second measuring pens pass through the wire It is connected with the display set at the lower rod end of the telescopic rod, and the lower rod end of the telescopic rod is provided with an adjustment mechanism, which is used to adjust the distance between the first measuring nib and the second measuring nib. The voltage measuring device replaces the traditional voltmeter , can reduce the risk of falling from high altitudes, reduce operating time and manpower input, increase safety and improve work efficiency at the same time.

Description

voltage measuring device

technical field

The utility model relates to the technical field of voltage measurement, in particular to a voltage measurement device.

Background technique

The distribution transformer area is the last link of the power supply. The quality of the voltage is directly related to the satisfaction of the users. For voltage problems, it is necessary to measure the voltage of the low-voltage pile head of the distribution transformer and the branch line voltage. Due to equipment failure, bad weather and other reasons, the voltage on the low-voltage side of the transformer collected by the power consumption information collection system is abnormal, and it is often necessary to go to the site to make up for it. At present, the common measurement tool in the market is a low-voltage voltmeter. Due to the high installation position of low-voltage wires, distribution transformers and other equipment, when using traditional voltmeters to measure voltage, it is necessary to climb up to work, and two people are required to cooperate. One person supports the insulating ladder. If one person wears insulating gloves to measure, the test efficiency is low, and it is not safe to be in close contact with live parts.

Utility model content

The purpose of the utility model is to provide a safe and reliable voltage measuring device which is convenient for measuring the voltage of the low-voltage pile head and the low-voltage overhead wire of the transformer in the distribution transformer area.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

The voltage measuring device includes a first measuring nib fixed on the upper rod end of the telescopic rod. The telescopic rod is made of insulating material. The first measuring nib and the rod end of the telescopic rod form a rotationally adjustable fit. A bracket rod is suspended from the telescopic rod. The overhanging end of the support rod is provided with a second measuring nib, and the second measuring nib and the end of the bracket rod form a rotationally adjustable fit. The first and second measuring nibs are connected to the display provided at the lower rod end of the telescopic rod through wires. The lower rod end of the rod is provided with an adjustment mechanism for adjusting the distance between the first measuring nib and the second measuring nib.

The utility model also has the following features:

The support rod is provided with a spring, one end of the spring is fixed with the shaft of the telescopic rod, the other end of the spring is fixed with the overhanging end of the support rod, the support rod and the telescopic rod form a horizontal telescopic fit, and the support rod Perpendicular to the length direction of the telescopic rod, the adjustment mechanism is used to drive the support rod to move along the length direction of the rod.

Rollers are provided on the telescopic rod, and the adjustment mechanism includes a stay rope fixed to the hanging end of the support rod. The stay rope abuts against the roller and extends toward the lower end of the telescopic rod. Knob, the adjustment knob and the telescopic rod form a rotational connection, and the extension end of the pull cord is fixed with the adjustment knob.

The telescopic rod includes first, second and third connecting rods connected in sequence, the first, second and third connecting rods are tubular and inserted into each other, and are located at the upper ends of the second and third connecting rods respectively. Fastening bolts are provided, and the rod ends of the fastening bolts abut against the lower rod ends of the first and second connecting rods respectively.

The connecting end of the support rod and the telescopic rod is set as a T-shaped end, and the T-shaped end abuts against or separates from the outer wall of the telescopic rod.

Compared with the prior art, the utility model has the following technical effects: the telescopic rod of the device is made of insulating material, which can ensure the safety of the measurement, and the telescopic rod can be adjusted for different heights of distribution transformers and low-voltage wires, and is easy to carry At the same time, the tester can operate the test instrument at a long distance, avoiding close contact with live wires, reducing the risk of falling from high altitude, safer, and not limited by space. The distance between the first measuring pen and the second measuring pen can be adjusted. For the different measurement points of the low-voltage pile head of the distribution transformer and the low-voltage wire, adjust the measuring nib of the meter to different positions to facilitate the measurement of different phase voltages and line voltages. The voltage values measured by the first measuring nib and the second measuring nib are transmitted to the The display at the lower end of the telescopic rod is convenient for reading and recording data. This voltage measuring device replaces the traditional voltmeter, which can reduce the risk of falling from high altitude, reduce working time and manpower input, increase safety and improve work efficiency.

Description of drawings

Figure 1 and Figure 2 are schematic diagrams of the voltage measuring device measuring the voltage of the low-voltage overhead conductor in the distribution transformer area;

Fig. 3 and Fig. 4 are schematic diagrams of the voltage measuring device measuring the voltage of the low-voltage pile head of the transformer.

detailed description

In conjunction with Fig. 1 to Fig. 4, the utility model is described further:

The voltage measuring device includes a first measuring nib 10 fixed on the rod end of the telescopic rod 20. The telescopic rod 20 is made of insulating material. The first measuring nib 10 and the rod end of the telescopic rod 20 form a rotation adjustable fit. Stretch is provided with support rod 30, and the overhanging end of support rod 30 is provided with the second measurement nib 40, and the second measurement nib 40 and support rod 30 rod ends form rotation adjustable fit, first, second measurement nib 10,40 pass through The wire is connected with the display 50 provided at the lower rod end of the telescopic rod 20, and the lower rod end of the telescopic rod 20 is provided with an adjustment mechanism, which is used to adjust the distance between the first measuring nib 10 and the second measuring nib 40.

Combined with Figures 1 to 4, the telescopic rod 20 of this device is made of insulating material, which can ensure the safety of the measurement. The telescopic rod 20 can be adjusted for different heights of the distribution transformer and low-voltage wires. Operating the test instrument avoids close contact with live wires, reduces the risk of falling from high altitudes, is safer, and is not limited by space. The distance between the first measuring pen 10 and the second measuring pen 40 is adjustable, which can be used for low-voltage piles of distribution transformers. Different measuring points between the head and the low-voltage wire, adjust the meter measuring pen to different positions, so as to measure different phase voltages and line voltages conveniently, the voltage values measured by the first measuring pen 10 and the second measuring pen 40 are transmitted to the telescopic rod 20 through the wire The display 50 at the lower end is convenient for reading and recording data. This voltage measuring device replaces the traditional voltmeter, which can reduce the risk of falling from high altitude, reduce working time and manpower input, increase safety and improve work efficiency.

As a preferred solution of the present utility model, a spring 60 is arranged on the support rod 30, one end of the spring 60 is fixed to the shaft of the telescopic rod 20, the other end of the spring 60 is fixed to the overhanging end of the support rod 30, and the support The rod 30 and the telescopic rod 20 form a telescopic cooperation in the horizontal direction, the support rod 30 is perpendicular to the length direction of the telescopic rod 20, and the adjustment mechanism is used to drive the support rod 30 to move along the length direction of the rod. The adjustment mechanism adjusts the support rod 30 to move along the length of the rod, so as to facilitate the adjustment of the distance between the first measuring nib 10 and the second measuring nib 40, so as to adapt to the different measuring points of the distribution transformer low-voltage pile head and the low-voltage wire.

Further, the telescopic rod 20 is provided with a roller 70, and the adjustment mechanism includes a pull cord 80 fixed to the overhanging end of the support rod 30, the pull cord 80 abuts against the roller 70 and extends toward the lower rod end of the telescopic rod 20 , the lower rod end of the telescopic rod 20 is provided with an adjustment knob 90 , the adjustment knob 90 forms a rotational connection with the telescopic rod 20 , and the extension end of the pull cord 80 is fixed to the adjustment knob 90 . Turn the adjustment knob 90 to facilitate the adjustment of the movement of the support rod 30 .

Specifically, the telescopic rod 20 includes sequentially connected first, second and third connecting rods 21, 22 and 23, and the first, second and third connecting rods 21, 22 and 23 are tubular and inserted into each other. Then, the shafts at the upper ends of the second and third connecting rods 22 and 23 are respectively provided with fastening bolts 24. When adjusted to a suitable height, the telescopic rod 20 is stretched or contracted, and the telescopic rod 20 is fixed by fastening the bolt 24 .

In order to limit the position of the support rod 30 , the connecting end of the support rod 30 and the telescopic rod 20 is set as a T-shaped end, and the T-shaped end abuts against or separates from the outer wall of the telescopic rod 20 .

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. voltage measuring device, it is characterized in that: comprise the first measurement nib (10) that is fixed on the rod end of telescopic rod (20), telescopic rod (20) is made by insulating material, the first measurement nib (10) and telescopic rod (20) The rod end constitutes a rotation adjustable fit, and a support rod (30) is suspended on the telescopic rod (20). (40) forms the rotation adjustable cooperation with support rod (30) rod end, and the first and second measuring nibs (10,40) are connected with the display (50) that the lower rod end of lead and telescopic rod (20) is provided with, telescopic The lower rod end of the rod (20) is provided with an adjustment mechanism for adjusting the distance between the first measuring nib (10) and the second measuring nib (40). 2. The voltage measuring device according to claim 1, characterized in that: the support rod (30) is provided with a spring (60), and one end of the spring (60) is fixed to the shaft of the telescopic rod (20) , the other end of the spring (60) is fixed with the overhanging end of the support rod (30), the support rod (30) and the telescopic rod (20) form a horizontal telescopic fit, the support rod (30) and the telescopic rod (20) The length direction is vertical, and the adjustment mechanism is used to drive the support rod (30) to move along the rod length direction. 3. The voltage measuring device according to claim 2, characterized in that: the telescopic rod (20) is provided with a roller (70), and the adjustment mechanism includes a drawstring fixed to the overhanging end of the support rod (30) (80), the pull cord (80) abuts against the roller (70) and extends to the lower rod end of the telescopic rod (20), and the lower rod end of the telescopic rod (20) is provided with an adjustment knob (90), and the adjustment knob (90) forms rotational connection with telescoping rod (20), and the extension end of stay cord (80) is fixed with adjustment knob (90). 4. The voltage measuring device according to any one of claims 1 to 3, characterized in that: the telescopic rod (20) includes first, second and third connecting rods (21, 22, 23) connected in sequence ), the first, second, and third connecting rods (21, 22, 23) are tubular and inserted into each other, and the shafts at the upper ends of the second and third connecting rods (22, 23) are respectively provided with fastening bolts (24), the rod ends of the fastening bolts (24) abut against the lower rod ends of the first and second connecting rods (21, 22) respectively. 5. The voltage measuring device according to claim 3, characterized in that: the connecting end of the support rod (30) and the telescopic rod (20) is set as a T-shaped end, and the T-shaped end and the telescopic rod (20) The outer wall of the abutment or separation.