CN111751602B

CN111751602B - Electroscope for distribution network insulated conductor

Info

Publication number: CN111751602B
Application number: CN202010678266.7A
Authority: CN
Inventors: 夏秋; 鲍超斌
Original assignee: Wuhan Qiyi Electrical Co ltd
Current assignee: Wuhan Qiyi Electrical Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2022-04-08
Anticipated expiration: 2040-07-15
Also published as: CN111751602A

Abstract

The invention discloses an electroscope for a distribution network insulated wire, which comprises an electroscope, wherein a conductive cylinder is arranged above the electroscope, an insulating shell is arranged outside the conductive cylinder, a power-off torch is arranged at the upper end of the conductive cylinder in the insulating shell, the diameter of an opening of the lower cavity of the power-off cylinder is consistent with that of the conductive cylinder, a telescopic hole is formed in the upper cavity of the power-off cylinder, the diameter of the telescopic hole is smaller than that of the lower cavity, an electroscope is movably arranged above the electroscope through the conductive cylinder and the power-off cylinder, a power-on column is arranged at the lower end of the electroscope, the diameter of the power-on column is consistent with the inner diameter of the conductive cylinder, a telescopic airbag is arranged in the inner cavity of the conductive cylinder, a handle is arranged at the lower end of the electroscope, a pressure airbag is arranged in the handle, the telescopic airbag is connected to the upper part of the pressure airbag through an airbag tube, a pressing mechanism is embedded in one side of the handle, and the telescopic airbag is used for pressing the pressure airbag to inflate so as to enable the electroscope to ascend and cut off the power; the invention has good safety performance, avoids the occurrence of high-grade voltage electric shock in the power distribution network, and is more convenient to detect and use.

Description

Electroscope for distribution network insulated conductor

Technical Field

The invention belongs to the technical field of distribution network voltage detection equipment, and particularly relates to an electroscope for distribution network insulated wires.

Background

The electroscope is an instrument for detecting whether an object is charged or not and roughly estimating the charged quantity. When the object to be tested contacts the conductor at the top end of the electroscope, the electric charge carried by the object to be tested is transferred to the foil in the glass bell jar. The foils will automatically separate and open at an angle due to the like charges repelling each other. The charge amount of the object can be estimated according to the angle of the two foil sheets. In fact, the electric field force applied to the foil comprises repulsion force of homonymous charges on the foil and attraction force of heteronymous charges on the inner wall of the vessel. If the glass bottle is changed to use a metal box to shield the static electricity, a metal rod and a vessel lead-out wire to measure the potential difference between two points, and a scale is added to quantify the result, the electroscope can be modified to a more accurate electrometer.

However, in the distribution network, the voltage class of the distribution network in china is divided into high-voltage distribution voltage (110, 63, 35 kV), medium-voltage distribution voltage (10 kV) and low-voltage distribution voltage (380/220V), so that when a worker detects a fault circuit, under the condition of completely uncertain or forgetting to cut off the distribution network, the worker is easy to get an electric shock hazard, and therefore an electroscope with a distribution network insulated wire with higher safety performance is needed.

Disclosure of Invention

Aiming at the problems that the prior art provided by the background technology has poor safety performance, is easy to cause electric shock danger to workers, is inconvenient to use during detection and is difficult to observe voltage reading, the technical scheme adopted by the invention is as follows:

an electroscope for an insulated wire of a distribution network comprises an electroscope, a conductive cylinder is arranged above the electroscope, an insulating shell is arranged outside the conductive cylinder, a torch is arranged at the upper end of the conductive cylinder in the insulating shell, the diameter of the opening of the lower cavity of the flashlight breaker is consistent with that of the conductive cylinder, the upper cavity of the flashlight breaker is provided with a telescopic hole, the diameter of the telescopic hole is smaller than that of the lower cavity, an electricity testing probe is movably arranged above the electricity testing instrument through a conductive cylinder and a power-off cylinder, the lower end of the electricity testing probe is provided with a power-on column, the diameter of the power-on column is consistent with the inner diameter of the conductive cylinder, the inner cavity of the conductive cylinder is provided with a telescopic air bag, the lower end of the electroscope is provided with a handle, the handle is internally provided with a pressure air bag, the telescopic air bag is connected to the upper part of the pressure air bag through an air bag pipe, a pressing mechanism is embedded and installed at one side of the handle, the telescopic air bag presses the pressure air bag through the pressing mechanism to inflate so that the electricity testing probe is powered up and powered off.

Preferably, pressing means is including pressing handle and two pressure spring, pressing handle is a right angle triangular prism body, pressing handle one side edge articulates in the handle, two pressure spring one end is fixed in the right angle edge both sides of pressing handle, two the pressure spring other end is fixed on the handle inner chamber, pressing handle rebounds through two pressure spring.

Preferably, the electricity testing instrument is covered with a protective shell on the outer side, the air bag pipe penetrates through the protective shell to be connected to the lower end of the telescopic air bag, and the conductive cylinder and the insulating shell penetrate through the protective shell to be connected to the electricity testing instrument.

Preferably, the upper end of the electricity testing probe is a hook-shaped probe.

Preferably, an insulating film is mounted on the bottom surface of the power-on post, and the area of the insulating film is smaller than that of the bottom surface of the power-on post.

Preferably, the bottom of the pressure air bag is provided with an inflation inlet, the inflation inlet penetrates through the bottom surface of the handle, and an air cover covers the inflation inlet.

Preferably, an insulating sleeve is attached to the outer side of the handle, and the insulating sleeve is a rubber sleeve.

Preferably, the conductive cylinder is electrically connected to the inside of the electroscope.

Preferably, the conductive cylinder, the power-on column and the electricity testing probe are all made of conductive metal materials.

By adopting the technical scheme of the invention, the following beneficial effects are obtained: the invention adds the movably contacted conductive tube and the electricity testing probe on the electricity testing instrument, controls the electrification and the outage of the electricity testing probe through the pressure air bag, the pressing mechanism and the telescopic air bag, ensures that a worker can flexibly control when detecting voltage, has higher safety performance, is in a hook-shaped structure, does not need to hold for a long time by hands of the worker, directly hangs and contacts the insulated conducting wire through the hook-shaped electricity testing probe for detection, can realize rotation of the cylindrical electricity testing column, and is beneficial to observation and reading of the worker.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a rotary structure according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an embodiment of the invention with an electroscope probe energized;

FIG. 4 is a cross-sectional view of an embodiment of the present invention with an electrical test probe de-energized;

the embodiment of the invention mainly comprises the following component symbols:

the device comprises an electroscope-1, a protective shell-101, a conductive cylinder-2, a power-off cylinder-3, a telescopic hole, an insulating shell-4, an electroscope probe-5, a power-on column-501, an insulating film-502, a telescopic air bag-6, an air bag tube-7, a pressure air bag-8, an inflation inlet-801, an air cover-802, a pressing mechanism-9, a pressing handle-901, a pressure spring-902, a handle-10 and an insulating sleeve-11.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 1 to 4, an electroscope for joining in marriage net insulated conductor, includes electroscope 1, electroscope 1 top is installed and is led electrical cylinder 2, insulating casing 4 is installed in the conductive cylinder 2 outside, disconnected torch 3 is installed to the upper end of conductive cylinder 2 in insulating casing 4, the trompil diameter in disconnected torch 3 lower chamber is unanimous with the diameter of conductive cylinder 2, it has the telescopic hole to open on disconnected torch 3, the telescopic hole diameter is less than the diameter of lower chamber, there is electroscope 5 above electroscope 1 through conductive cylinder 2 and the movable mounting of a section of thick bamboo 3 that cuts off power, electroscope 5 low side is installed and is circular telegram post 501, circular telegram post 501 diameter is unanimous with conductive cylinder 2 internal diameter, flexible gasbag 6 is installed to conductive cylinder 2 inner chamber, handle 10 is installed to electroscope 1 lower extreme, install pressure gasbag 8 in the handle 10, flexible gasbag 6 is connected to pressure gasbag 8 top through gasbag pipe 7, a pressing mechanism 9 is embedded in one side of the handle 10, and the telescopic air bag 6 presses the pressure air bag 8 through the pressing mechanism 9 to inflate so as to enable the electricity testing probe 5 to ascend and cut off electricity.

The pressing mechanism 9 comprises a pressing handle 901 and two pressure springs 902, the pressing handle 901 is a right-angle triangular prism, an edge of one side of the pressing handle 901 is hinged in the handle 10, one ends of the two pressure springs 902 are fixed on two sides of the right-angle edge of the pressing handle 901, the other ends of the two pressure springs 902 are fixed on the inner cavity of the handle 10, and the pressing handle 901 rebounds through the two pressure springs 902.

The outer side of the electroscope 1 is covered with a protective shell 101, the air bag tube 7 penetrates through the protective shell 101 to be connected to the lower end of the telescopic air bag 6, and the conductive cylinder 2 and the insulating shell 4 penetrate through the protective shell 101 to be connected to the electroscope 1; the upper end of the electroscope probe 5 is a hook-shaped probe.

According to the invention, the movable contact conductive tube 2 and the electricity testing probe 5 are added on the electricity testing instrument 1, the electrification and the outage of the electricity testing probe 5 are controlled through the pressure air bag 8, the pressing mechanism 9 and the telescopic air bag 6, so that a worker can flexibly control the electricity testing probe 5 when detecting voltage, the safety performance is higher, the electricity testing probe 5 is of a hook-shaped structure, the worker does not need to hold the hook-shaped electricity testing probe for a long time, the hook-shaped electricity testing probe 5 is directly suspended and contacted with an insulated wire for detection, the cylindrical electricity conducting column 501 can rotate, and the observation and the reading of the worker are facilitated.

The bottom surface of the current-carrying column 501 is provided with an insulating film 502, and the area of the insulating film 502 is smaller than that of the bottom surface of the current-carrying column 501.

The bottom of the pressure air bag 8 is provided with an inflation port 801, the inflation port 801 penetrates through the bottom surface of the handle 10, and an air cover 802 covers the inflation port 801.

An insulating sleeve 11 is pasted on the outer side of the handle 10, and the insulating sleeve 11 is a rubber sleeve.

The conductive cylinder 2 is electrically connected into the electroscope 1; the conductive cylinder 2, the electrifying column 501 and the electricity testing probe 5 are all made of conductive metal materials.

The working principle of the invention is as follows: during detection, the electricity testing probe 5 is hung on an insulated conductor to be detected, at the moment, the pressure air bag 8 is not accepted, the telescopic air bag 6 is not inflated, the electricity testing probe 5 does not extend out of the conductive cylinder 2, the connection between the electrifying column 501 and the conductive cylinder 2 meets the weight of the whole electricity testing device, the conductive cylinder 2, the electrifying column 501 and the electricity testing probe 5 cannot be electrified due to weight shift, the voltage value can be directly measured, and when observation and reading are inconvenient, the handle 10 is held lightly to rotate the electricity testing instrument 1 and the handle 10 for an angle, so that the reading can be facilitated; when stopping detecting, the staff holds handle 10, pinch with strength and press handle 901, press handle 901 and arrange into flexible gasbag 6 with the air in the air bag 8, make flexible gasbag 6 aerify upwards flexible, make circular telegram post 501 rise to in the section of thick bamboo 3 that cuts off the power supply, the 1 outage suggestion of electroscope, then can take off electroscope, manual with electroscope 5 press back in the section of thick bamboo 2 can, and pressure spring 902 will press handle 901 automatic re-setting, air in the flexible gasbag 6 of pressure gasbag 8 siphoning away resumes original full state.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides an electroscope for joining in marriage net insulated wire, includes electroscope (1), its characterized in that: the electricity testing instrument is characterized in that a conductive barrel (2) is installed above the electricity testing instrument (1), an insulating shell (4) is installed outside the conductive barrel (2), a breaking electric torch (3) is installed at the upper end of the conductive barrel (2) in the insulating shell (4), the opening diameter of the lower cavity of the breaking electric torch (3) is consistent with the diameter of the conductive barrel (2), a telescopic hole is formed in the upper cavity of the breaking electric torch (3), the diameter of the telescopic hole is smaller than that of the lower cavity, an electricity testing probe (5) is movably installed above the electricity testing instrument (1) through the conductive barrel (2) and the electricity breaking barrel (3), an electricity testing probe (5) is installed at the lower end of the electricity testing probe (5), an electricity conducting column (501) is installed at the diameter of the electricity conducting column (501) and the inner diameter of the conductive barrel (2), a telescopic air bag (6) is installed in the inner cavity of the conductive barrel (2), a handle (10) is installed at the lower end of the electricity testing instrument (1), and a pressure air bag (8) is installed in the handle (10), flexible gasbag (6) are connected to pressure gasbag (8) top through gasbag pipe (7), pressing means (9) are installed in handle (10) one side embedding, flexible gasbag (6) press pressure gasbag (8) through pressing means (9) and inflate and make electroscope probe (5) break off the power supply that rises.

2. The electroscope of claim 1, wherein: the pressing mechanism (9) comprises a pressing handle (901) and two pressure springs (902), the pressing handle (901) is a right-angle triangular prism, the edge of one side of the pressing handle (901) is hinged into the handle (10), one ends of the two pressure springs (902) are fixed on two sides of the right-angle edge of the pressing handle (901), the other ends of the two pressure springs (902) are fixed on the inner cavity of the handle (10), and the pressing handle (901) rebounds through the two pressure springs (902).

3. The electroscope of claim 2, wherein: electroscope (1) outside is covered with protective housing (101), gasbag pipe (7) pass protective housing (101) and are connected to flexible gasbag (6) lower extreme, electrically conductive section of thick bamboo (2) and insulating casing (4) pass protective housing (101) and are connected to on electroscope (1).

4. The electroscope of claim 3, wherein: the upper end of the electroscope probe (5) is a hook-shaped probe.

5. The electroscope of claim 4, wherein: an insulating film (502) is mounted on the bottom surface of the power-on column (501), and the area of the insulating film (502) is smaller than that of the bottom surface of the power-on column (501).

6. The electroscope of claim 5, wherein: the bottom of the pressure air bag (8) is provided with an inflation inlet (801), the inflation inlet (801) penetrates through the bottom surface of the handle (10), and an air cover (802) covers the inflation inlet (801).

7. The electroscope of claim 6, wherein: an insulating sleeve (11) is attached to the outer side of the handle (10), and the insulating sleeve (11) is a rubber sleeve.

8. The electroscope of claim 7, wherein: the conductive cylinder (2) is electrically connected into the electroscope (1).

9. The electroscope of claim 8, wherein: the conductive cylinder (2), the power-on column (501) and the electricity testing probe (5) are all made of conductive metal materials.