CN215813057U

CN215813057U - Low-voltage phase tester

Info

Publication number: CN215813057U
Application number: CN202121055466.3U
Authority: CN
Inventors: 黄伟; 冯儒梅; 徐斌; 陈晶; 胡苗
Original assignee: Shenzhen Electrified Technology Development Co ltd
Current assignee: Shenzhen Electrified Technology Development Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-02-11
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses a low-voltage phase tester, which comprises a phase tester body and a telescopic insulating handle, wherein the phase tester body is arranged at the near end or the far end of the insulating handle, three contact rods with adjustable intervals are arranged at the far end of the insulating handle, contact heads are arranged on the contact rods, the rest parts of the contact rods except the contact heads are covered with insulating layers, the contact rods are electrically connected with three input ends of the phase tester body through internal wiring, contact indicating lamps which are respectively connected with the contact heads of the three contact rods in a one-to-one correspondence manner are arranged on the phase tester body or the insulating handle, and a sound warning device, an in-phase indicating lamp and an out-phase indicating lamp which are electrically connected with a control panel of the phase tester body are also arranged on the phase tester body or the insulating handle. Compared with the prior art, the method can be used for realizing remote detection operation by a single person, and changes the mode of measuring the phase sequence in a near distance mode into a remote electricity testing mode, thereby improving the detection work and ensuring the operation safety of measuring personnel.

Description

Low-voltage phase tester

Technical Field

The utility model relates to charged detection equipment, in particular to a low-voltage phase testing instrument for remotely testing electricity and testing phases.

Background

When detecting the phase sequence of three-phase power, because current low pressure is tested the looks appearance and is formed by having three test contact and the phase sequence appearance that pass through the cable connection, need two people cooperation and need closely contact the measuring method of electrified body when detecting, this kind of work is owing to have and violates the safety regulation, and the security is also not enough, leads to the detection enterprise can't pass the safety requirement, causes to carry out the compliance operation, can't handle the work ticket, does not have suitable solution at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-voltage phase testing instrument, which aims to solve the technical problems of realizing long-distance electricity testing operation and improving the safety of detection work.

In order to solve the problems, the utility model adopts the following technical scheme: a low-voltage phase tester comprises a phase tester body and a telescopic insulating handle, wherein the phase tester body is arranged at the near end or the far end of the insulating handle, the far end of the insulated handle is provided with three contact rods with adjustable space, the contact rods are provided with contact heads, the rest parts of the contact rods except the contact heads are covered with an insulating layer, the contact rods are electrically connected with three input ends of the phase tester body through internal wiring, contact indicator lamps which are respectively connected with the contact heads of the three contact rods in a one-to-one correspondence way are arranged on the phase testing instrument body or the insulating handle, the phase testing instrument body or the insulated handle is also provided with a sound alarm, an in-phase indicator light and an out-phase indicator light which are electrically connected with the control panel of the phase testing instrument body, after the measuring contacts of the three contact rods are respectively contacted with a three-phase power supply, whether the phase sequence of the three-phase voltage is positive or not is detected, and the result is reported in an acoustic mode and an optical mode.

Further, the phase tester body is arranged on the insulating handle, and the three contact rods are rotatably fixed on the shell of the phase tester body, so that the distance between the three contact rods can be adjusted.

Further, the three contact levers are rotatably fixed to the housing by means of a rotating shaft provided on the surface of the contact lever, the axis of the rotating shaft being perpendicular to the center line of the contact lever.

Furthermore, the insulating handle includes telescopic link and handle, and the shell is fixed in the one end of telescopic link, and the handle is fixed at the other end of telescopic link.

Compared with the prior art, the phase tester body is arranged at the near end or the far end of the insulating handle by arranging the telescopic insulating handle, the far end of the insulating handle is provided with three contact rods with adjustable intervals, the three contact rods are electrically connected with three input ends of the phase tester body through internal wiring, and a contact indicator lamp, a sound alarm, an in-phase indicator lamp and an out-phase indicator lamp are arranged, so that the remote detection operation can be carried out by a single person, the mode of measuring the phase sequence at the near distance is changed into the mode of testing the electricity at the remote distance, and the phase sequence is detected to be in the forward direction or not while testing the electricity, so that the detection work is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the connection of the contact bar to the housing of the present invention.

Fig. 3 is a schematic diagram of the use of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and fig. 2, the utility model discloses a low-voltage phase tester, which comprises a phase tester body 1 and a telescopic insulating handle 2, wherein the phase tester body 1 adopts a phase tester control board part in the prior art, which is not particularly limited, and the improved part in the utility model is a part which is contacted with a three-phase power supply and is provided with a corresponding acousto-optic prompt; in the utility model, a phase tester body 1 is arranged at the near end (the end close to an operator) or the far end (the end positioned at a three-phase power supply) of an insulating handle 2, three contact rods 3 with adjustable intervals are arranged at the far end of the insulating handle 2, contact heads are arranged on the contact rods 3, the rest parts of the contact rods 3 except measurement contacts are coated with insulating layers 4, the contact rods 3 are electrically connected with three input ends of the phase tester body 1 through internal wiring, so that after the measurement contacts of the three contact rods 3 are respectively contacted with the three-phase power supply, whether the phase sequence of three-phase voltage is in the forward direction is detected; the phase testing instrument body 1 or the insulating handle 2 is provided with contact indicating lamps 7 which are respectively connected with the contact heads of the three contact rods 3 in a one-to-one correspondence manner, the phase testing instrument body 1 or the insulating handle 2 is also provided with a sound alarm 8, an in-phase indicating lamp 9 and an out-of-phase indicating lamp 10 which are electrically connected with a control board of the phase testing instrument body 1, so that after the measuring contact heads of the three contact rods 3 are respectively contacted with a three-phase power supply, the result is reported in a sound and light manner while the phase sequence of the three-phase voltage is detected to be positive.

When examining the appearance body 1 and being set up in the near-end of telescopic handle 2, three contact rods 3 are connected with three input electricity on examining the appearance body 1 through the spiral electric wire that sets up inside telescopic handle 2.

In the utility model, the phase tester body 1 is arranged at the far end of the insulated handle 2, and the three contact rods 3 are rotatably fixed on the shell 5 of the phase tester body 1, so that the distance between the three contact rods 3 can be adjusted; specifically, the three contact levers 3 are rotatably fixed to the housing 5 by means of a rotating shaft 6 provided on the surface of the contact lever 3 (shown in fig. 2), the axis of the rotating shaft 6 being perpendicular to the center line of the contact lever 3, a rotating shaft holder 51 being provided in the housing 5, the rotating shaft 6 being inserted in the rotating shaft holder 51.

As shown in fig. 1, a contact indicator lamp 7, an acoustic alarm 8, an in-phase indicator lamp 9, and an out-of-phase indicator lamp 10 are provided on the housing 5.

As shown in fig. 1, the insulated handle 2 comprises a telescopic rod 21 and a handle 22, the phase testing shell 5 is fixed at one end of the telescopic rod 21, and the handle 22 is fixed at the other end of the telescopic rod 21; specifically, the contact rod 3 is arranged on one end surface of the phase tester casing 5 far away from the telescopic rod 21, and in the utility model, the telescopic rod 21 adopts the prior art and is not particularly limited herein; the contact indicator light 7, the acoustic alarm 8, the in-phase indicator light 9 and the out-of-phase indicator light 10 are all provided on the handle 22.

During the use, at first the interval of contact rod 3 has been adjusted well, then after adjusting telescopic link 21 to suitable length, contact the power end 100 of the three-phase electrical equipment of surveyed simultaneously through three adjustable contact rod 3 in front end, detect the voltage state of surveyed electrical equipment to output detected signal, through the phase place state of the signal display of output detection equipment.

The utility model can remotely test three-phase voltage and measure the phase sequence of the three phases simultaneously, ensures that an operator can be far away from electrified equipment, and the three adjustable contact rods are arranged on the telescopic handle, thereby being a low-voltage electricity testing and phase measuring device which has simple structure, easy carrying, adjustable contact rods and audio alarm and light source signals, saving the personnel cost, improving the operation efficiency and the safety and avoiding the occurrence of personal safety accidents.

Claims

1. The utility model provides a looks appearance is tested to low pressure, includes looks appearance body (1), its characterized in that: the phase testing instrument comprises an insulation handle (2) and a telescopic insulation handle, wherein the phase testing instrument body (1) is arranged at the near end or the far end of the insulation handle (2), three contact rods (3) with adjustable intervals are arranged at the far end of the insulation handle (2), contact heads are arranged on the contact rods (3), the rest parts of the contact rods (3) except the contact heads are covered with an insulation layer (4), the contact rods (3) are electrically connected with three input ends of the phase testing instrument body (1) through internal wiring, contact indicator lamps (7) which are respectively connected with the contact heads of the three contact rods (3) in a one-to-one correspondence manner are arranged on the phase testing instrument body (1) or the insulation handle (2), a sound alarm (8) which is electrically connected with a control board of the phase testing instrument body (1), an in-phase indicator lamp (9) and an out-phase indicator lamp (10) are further arranged on the phase testing instrument body (1) or the insulation handle (2), so that measuring contacts of the three contact rods (3) are respectively contacted with a three-phase power supply, and detecting whether the phase sequence of the three-phase voltage is positive or not, and reporting the result in an acoustic mode and an optical mode.

2. The low-voltage phase tester according to claim 1, characterized in that the phase tester body (1) is arranged on the insulated handle (2), and the three contact rods (3) are rotatably fixed on the shell (5) of the phase tester body (1) so that the distance between the three contact rods (3) can be adjusted.

3. The low-voltage phase tester according to claim 2, wherein: the three contact rods (3) are rotatably fixed on the shell (5) through rotating shafts (6) arranged on the surfaces of the contact rods (3), and the axes of the rotating shafts (6) are vertical to the central line of the contact rods (3).

4. The low pressure phase tester of claim 3, wherein: the insulating handle (2) comprises a telescopic rod (21) and a handle (22), the shell (5) is fixed at one end of the telescopic rod (21), and the handle (22) is fixed at the other end of the telescopic rod (21).