CN205691614U - A kind of voltage sample attachment means using magnet steel - Google Patents

Abstract

The utility model relates to a voltage sampling connection device using magnetic steel, which comprises a magnetic steel, a sucker and a tubular cold-pressed terminal. end, the suction cup is set outside the magnetic steel, and the magnetic steel is surrounded in the suction cup. The suction cup is trumpet-shaped. The front end of the suction cup is large and the rear end is small. The shaft hole of the shoulder is in close contact with the rear side of the suction cup, and the tubular cold-press terminal is exposed outside the suction cup. When carrying out voltage sampling construction, the power equipment does not need to be powered off. The copper wire at the end of the voltage sampling cable is connected to the tubular cold-pressed terminal. Hold the suction cup and adsorb the magnetic steel to the voltage terminal that needs to be sampled. The suction cup sucks On electric equipment, live installation of voltage sampling is realized. The utility model realizes the live construction of voltage sampling, so the construction period of the project can be greatly shortened, the construction efficiency can be improved, and the labor cost can also be reduced.

Description

A voltage sampling connection device using magnetic steel

technical field

The utility model relates to the field of electric power engineering installation, in particular to a voltage sampling connection device using magnetic steel which can complete installation with charging.

Background technique

The installation of power collection equipment or power monitoring equipment and other equipment requires voltage and current sampling construction on the user's existing power equipment or power lines. At present, the sampling construction of voltage and current in the power field requires power-off installations, such as sampling by using insulation piercing clips and alligator clips on voltage terminals. Insulation piercing clips are not only expensive, but also damage existing cables. This damage is irreversible, and the construction and installation are complicated. Alligator clips are not ideal in terms of structural firmness and stability, and are generally only used as temporary electrical connections. Devices are used more often in experiments and are not suitable for long-term use. More importantly, these voltage sampling fixtures need to be installed without power failure, and the user side requires non-power-off installation in order not to affect normal work and normal force. Therefore, the current voltage sampling construction and the user's non-power-off installation requirements are contradictory. , unable to meet the user's uninterrupted installation requirements. Adopting the existing power outage installation method not only increases the difficulty of engineering construction, but also requires power outages during construction, resulting in construction that can only be carried out during holidays, late at night, and early in the morning, which prolongs the construction period and lower construction efficiency. Increased labor costs.

Contents of the invention

The utility model mainly solves the technical problems that the voltage and current sampling construction in the original electric power engineering must be carried out only after a power outage, the construction period of the project is long, the construction efficiency is low, the labor cost is high, and the construction requirements of the user cannot be met; The voltage sampling connection device of magnetic steel can be installed live during electric power construction, and power users can carry out construction without power failure, and can be constructed and installed during normal working hours, which greatly shortens the construction period of the project, improves construction efficiency, and reduces employment. cost without causing non-recoverable damage to the power user's existing cable structure.

The above-mentioned technical problems of the utility model are mainly solved by the following technical solutions: the utility model includes a magnet, a sucker and a tubular cold-pressed terminal, the sucker is set outside the magnet, and the magnet is surrounded in the sucker, and the tube The type cold-press terminal is connected to the rear side of the magnetic steel, and the tube-type cold-press terminal is exposed outside the suction cup. When carrying out voltage sampling construction, the power equipment does not need to be powered off. The copper wire at the end of the voltage sampling cable is inserted into the tubular cold-pressed terminal, and the tubular cold-pressed terminal is pressed tightly to realize the close connection between the tubular cold-pressed terminal and the copper wire. Then hold the suction cup in hand, and adsorb the magnetic steel to the voltage terminal that needs to be subjected to voltage sampling, and the suction cup is sucked on the power equipment where the voltage terminal is located, so as to realize the live installation of voltage sampling. This technical solution utilizes the characteristics that the magnet steel has both conductivity and suction to metal. When it is installed on the voltage terminal of the power equipment, the magnet is adsorbed to the voltage terminal that needs to be sampled by the magnetic force, and the suction cup is sucked on the voltage terminal. On the equipment where the terminal is located, the voltage sampling cable takes power from the voltage terminal through the magnetic steel, so as to realize the non-contact and non-power-off installation of voltage sampling. The suction cup not only plays the role of insulation between the surrounding magnetic steel and the adjacent magnetic steel and terminals, but also because the suction cup is firmly attracted to the equipment, it gives a binding force to the magnetic steel attracted to the voltage terminal, further Ensure the firmness of the adsorption between the magnetic steel and the voltage terminal, prevent the magnetic steel from detaching from the voltage terminal, and improve the reliability of voltage sampling. Therefore, using the utility model, the construction of voltage sampling can be carried out under the condition that the voltage terminal is charged, and the electric equipment that needs to carry out voltage sampling construction does not need to be powered off, and construction can be carried out during the normal working hours of power users and when the power system is running, satisfying Power users do not need to conduct power outage construction, and because the construction time is not limited, there is no need to choose to carry out during holidays, late nights, and early mornings, so the construction period can be greatly shortened, construction efficiency can be improved, and labor costs can also be reduced. Existing cable structures cause damage that will not recover, increasing reliability. The technical scheme can also be used in the construction of current sampling, and can also be used in the construction of other connection terminals and cable connections that require live operation.

Preferably, the magnetic steel is provided with a through hole passing through front and back, and the tube-type cold-press terminal is connected to the rear end of the through hole. Ensure that the connection between the tube-type cold-press terminal and the magnetic steel is more convenient and firmer.

Preferably, the suction cup is trumpet-shaped, the front end of the suction cup is large and the rear end is small, and the magnetic steel is located in the rear end of the suction cup and is in close contact with the rear side of the suction cup. The trumpet-shaped opening increases the adsorption area of the suction cup and improves the suction force of the suction cup. When the suction cup is opened and sucked on the electric equipment, the magnetic steel can just be sucked on the voltage terminal of the electric equipment. In order to improve the suction force of the sucker, the length of this section of the sucker positioned at the front of the magnetic steel can be left longer, and the length of the sucker of the front section of the magnetic steel is greater than the length of the sucker of the section where the magnetic steel is located.

Preferably, a shoulder is provided inside the suction cup, the shoulder is close to the rear end of the suction cup, and the magnetic steel is arranged in the shaft hole of the shoulder. The magnetic steel and the shaft hole of the shoulder are closely matched, the shoulder is elastic, and the magnetic steel is tightly surrounded by the shoulder, which is easy to install and firmly connected. The shoulder surface forms a suction plane again, which effectively improves the suction force of the suction cup on the electric equipment.

Preferably, the material of the suction cup is an insulating elastic material. Such as plastic, rubber and other materials. Ensure that the suction cup can not only absorb on other planes but also have insulation properties. When installed on electrical equipment, it plays the role of insulation between the surrounding magnetic steel and adjacent magnetic steel and terminals.

The beneficial effects of the utility model are: the non-contact non-stop installation of voltage sampling is realized by using the characteristics of the magnetic steel that has both conductivity and suction to metal, and the voltage sampling cable takes power from the voltage terminal through the magnetic steel, so it can be When the voltage terminal is live, the power equipment that needs to carry out voltage sampling construction does not need to be powered off, and the construction can be carried out during the normal working hours of power users and when the power system is running, which meets the requirements of power users for non-stop construction, and due to the construction time There is no limit, and there is no need to choose to carry out on holidays, late at night, or early in the morning, so the construction period can be greatly shortened, the construction efficiency can be improved, and the labor cost can also be reduced. Moreover, the present invention will not cause unrecoverable damage to the existing cable structure of power users. , easy to operate, low cost and high reliability.

Description of drawings

Fig. 1 is a schematic structural view of a front view of the utility model.

Fig. 2 is a left side view of Fig. 1 .

In the figure 1. Magnetic steel, 2. Suction cup, 3. Tube-type cold-pressed terminal, 4. Through hole, 5. Shoulder.

detailed description

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

Embodiment: A voltage sampling connection device using magnets in this embodiment includes a magnet 1, a suction cup 2 and a tubular cold-pressed terminal 3. As shown in Figures 1 and 2, there is a front and rear through magnet 1 The through hole 4 of the through hole 4, the tubular cold-press terminal 3 is connected to the rear end of the through hole 4, the suction cup 2 is set outside the magnetic steel 1, the magnetic steel 1 is surrounded in the suction cup 2, the suction cup 2 is trumpet-shaped, and the front end of the suction cup 2 is large. The end is small, there is a shoulder 5 in the suction cup 2, the shoulder 5 is close to the rear end of the suction cup 2, the magnetic steel 1 is tightly fitted in the shaft hole of the shoulder 5, the rear side of the magnetic steel 1 and the suction cup 2 is close to each other, and the tube The type cold-press terminal 3 protrudes from the rear end of the suction cup 2. The material of the suction cup 2 is an insulating elastic material. In this embodiment, the suction cup 2 is made of elastic rubber.

When carrying out voltage sampling construction, the power equipment that needs to be used for voltage sampling construction does not need to be powered off. The insulation layer of the end of the voltage sampling cable is stripped to expose the copper wire, and the copper wire is inserted into the tube-type cold-pressed terminal, and the tube-type cold-pressed terminal is pressed tightly. terminal, so that the tubular cold-pressed terminal and the copper wire are closely connected, hold the suction cup, and adsorb the magnetic steel to the voltage terminal of the power equipment that needs voltage sampling, the suction cup is sucked on the power equipment where the voltage terminal is located, and The voltage connecting terminal plays the role of isolation and insulation, and realizes the live installation of voltage sampling.

The utility model utilizes the characteristics of both electrical conductivity and metal attraction of the magnetic steel to realize the non-contact non-stop power-off installation of the voltage sampling. The voltage sampling cable takes power from the voltage terminal through the magnetic steel, so the voltage terminal can be charged The power equipment that needs to carry out voltage sampling construction does not need to be powered off, and the construction can be carried out during the normal working hours of power users and when the power system is running, meeting the requirements of power users for non-stop construction, and because the construction time is not limited, there is no need to choose It is carried out during holidays, late at night, and early in the morning, so the construction period can be greatly shortened, construction efficiency can be improved, and labor costs can also be reduced. Moreover, the present invention will not cause unrecoverable damage to the existing cable structure of power users, and is easy to operate and low in cost. Low, high reliability.

Claims (5)

1. A voltage sampling connection device using magnetic steel, characterized in that it includes magnetic steel (1), suction cup (2) and tubular cold-pressed terminal (3), and the suction cup (2) is sleeved outside the magnetic steel (1) , the magnetic steel (1) is enclosed in the suction cup (2), the tubular cold-pressed terminal (3) is connected to the rear side of the magnetic steel (1), and the tubular cold-pressed terminal (3) is exposed on the suction cup ( 2) Outside. 2. A voltage sampling connection device using magnetic steel according to claim 1, characterized in that the magnetic steel (1) is provided with a through hole (4) that runs through the front and back, and the tube-shaped cold The crimp terminal (3) is connected to the rear end of the through hole (4). 3. A voltage sampling connection device using magnetic steel according to claim 1, characterized in that the sucker (2) is trumpet-shaped, the front end of the sucker (2) is large and the rear end is small, and the magnetic steel ( 1) It is located in the rear end of the suction cup (2) and is in close contact with the rear side of the suction cup (2). 4. A voltage sampling connection device using magnetic steel according to claim 1, 2 or 3, characterized in that a shoulder (5) is provided in the suction cup (2), and the shoulder (5) is close to At the rear end of the sucker (2), the magnetic steel (1) is arranged in the shaft hole of the shoulder (5). 5. A voltage sampling connection device using magnetic steel according to claim 1, 2 or 3, characterized in that the material of the suction cup (2) is an insulating elastic material.