CN215575343U - Electricity testing and phase checking auxiliary device for handcart type switch cabinet - Google Patents
Electricity testing and phase checking auxiliary device for handcart type switch cabinet Download PDFInfo
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- CN215575343U CN215575343U CN202120646256.5U CN202120646256U CN215575343U CN 215575343 U CN215575343 U CN 215575343U CN 202120646256 U CN202120646256 U CN 202120646256U CN 215575343 U CN215575343 U CN 215575343U
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Abstract
The utility model relates to an electricity testing and nuclear phase auxiliary device for a handcart type switch cabinet, which comprises a handcart base, a handcart mechanical locking device and an insulating baffle plate, wherein the handcart base is of a cuboid structure, four base pulleys are symmetrically arranged on two sides of the handcart base, a handcart operation handle is arranged on the end face of the front side of the handcart base, the handcart mechanical locking device is arranged on the rear side of the top of the handcart mechanical locking device, and the insulating baffle plate capable of being turned over is arranged on the front side of the handcart mechanical locking device. When the line maintenance needs safety measures, namely the line side grounding disconnecting link, electricity can be directly tested by matching with an electroscope, whether the line side has power failure or not is judged, and a malignant misoperation accident of the electrified grounding switch is prevented; when new commissioning equipment needs to enter a nuclear phase, the utility model is matched with a nuclear phase instrument, a rear cabinet door and an insulating partition plate of the switch cabinet do not need to be opened, the phase testing of the outgoing line side and the bus side can be directly realized in front of the switch cabinet, and the utility model is safe, simple, standard and quick and effectively avoids electric shock accidents of personnel.
Description
Technical Field
The utility model relates to the technical field of switch cabinet maintenance, in particular to a handcart type switch cabinet electricity testing and phase checking auxiliary device.
Background
The handcart switch cabinet is a fully-sealed indoor switch cabinet, is widely used in 35kV and 10kV power distribution rooms, and mainly comprises a bus room, a handcart switch room and a wire outlet room, the handcart switch cabinet has small floor area and is convenient to operate and overhaul, but because the handcart switch cabinet is a fully-sealed switch cabinet, after the handcart switch is pulled out, a bus and a static contact at the wire outlet side are automatically sealed by an insulating baffle plate, and when a line grounding switch or a newly-put-in equipment line and the bus need to be checked and closed at the line side, the electricity checking or the phase checking of the line side equipment cannot be carried out.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an electricity testing and phase checking auxiliary device for a handcart type switch cabinet.
The technical scheme adopted by the utility model is as follows:
the handcart type switch cabinet electricity testing and nuclear phase auxiliary device comprises a handcart base, a handcart mechanical locking device and an insulating baffle plate, wherein the handcart base is of a cuboid structure, four base pulleys are symmetrically arranged on two sides of the handcart base, a handcart operation handle is arranged on the end face of the front side of the handcart base, the handcart mechanical locking device is arranged on the rear side of the top of the handcart base, and the insulating baffle plate capable of being turned over is arranged on the front side of the handcart mechanical locking device; insulating baffle comprises upset frame and transparent ya keli board panel, and on the handcart base was located that the upset frame can rotate the location through upset blocking pin, the both sides of ya keli board panel were fixed on the upset frame, and the ya keli board panel is last to be equipped with three bus side and to test electricity, nuclear phase trompil and three circuit side and to test electricity, nuclear phase trompil.
Preferably, the turnover frame is provided with a groove body matched with the handcart mechanical locking device, the maximum turnover angle of the turnover frame is 90 degrees, and the turnover frame is perpendicular to the handcart base after being turned over for 90 degrees.
Preferably, the base pulley can be positioned in a front-back sliding mode relative to the handcart base.
Preferably, the base pulley consists of a rotating shaft, a wheel body, a sliding pull rod and a sliding locking pin, the sliding pull rod is arranged in the handcart base, one end of the sliding pull rod is connected with the wheel body on the outer side of the handcart base through the rotating shaft, and the other end of the sliding pull rod is in threaded connection with the sliding locking pin; the handcart base is provided with a sliding chute matched with the sliding pull rod to slide, and a waist-shaped hole formed by the rotating shaft and the sliding locking pin to slide.
Preferably, the bus side electricity testing and nuclear phase opening hole and the line side electricity testing and nuclear phase opening hole are further provided with detachable movable warning covers.
The utility model has the beneficial effects that:
when a safety measure, namely a line side grounding switch, needs to be taken during line maintenance, the handcart type switch cabinet can be used for directly testing electricity by matching the electricity testing and phase testing auxiliary device with an electricity tester, and an operation and maintenance worker can directly test electricity for equipment on a bus side or an outgoing line side by using the electricity tester to judge whether the line side has power failure or not, so that a malignant misoperation accident of a live-line grounding switch is prevented from occurring, and the risk value of the malignant misoperation accident of the live-line grounding switch is reduced to zero; when new equipment of putting into operation need advance nuclear phase, examine electricity, nuclear phase auxiliary device cooperation nuclear phase appearance through this handcart-type cubical switchboard, need not to open the cubical switchboard back cabinet door, also need not to open insulating barrier, directly can realize the side of being qualified for the next round of competitions and the test looks of bus side before the cubical switchboard, safety, simple, standard, swift, effectively avoided personnel's electric shock accident.
The base pulley of the handcart type switch cabinet electricity testing and nuclear phase auxiliary device can be positioned in a front-back sliding mode relative to a handcart base, and then can be matched with various types of handcart switch cabinet rails, so that compatibility of the handcart type switch cabinet electricity testing and nuclear phase auxiliary device is achieved. In addition, this handcart-type cubical switchboard is tested electricity, nuclear phase auxiliary device's insulating baffle can overturn, when not using, overturns to horizontal position and puts to in taking in and removing the use, when the frame upset of overturning to horizontal position simultaneously, can prevent effectively that mechanical blocking device from opening the insulating baffle in the cubical switchboard.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the roll-over frame of the present invention being rolled over to a maximum angle;
FIG. 4 is a schematic view of the structure of the base pulley of the present invention;
FIG. 5 is a schematic view of the installation position of the warning cover according to the present invention;
in the figures 1-5, 1-handcart base, 2-handcart mechanical locking device, 3-base pulley, 4-handcart operating handle, 5-overturning frame, 6-acrylic plate panel, 7-overturning locking pin, 8-bus side electricity testing, nuclear phase opening, 9-line side electricity testing, nuclear phase opening, 10-groove body, 11-rotating shaft, 12-wheel body, 13-sliding pull rod, 14-sliding locking pin, 15-waist-shaped hole and 16-warning cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The handcart switch cabinet is analyzed by the conventional electricity testing or phase checking method:
(1) confirming that the line connected with the line and the breaker have power failure to switch to the line for maintenance through contact with a dispatching telephone, or confirming that the line has power failure through site operators and user telephones; although the power failure of the line is confirmed by the telephone and the dispatching contact, a user on the line has a self-contained power supply, forgets to turn off a switch connected with the main network when the self-contained power supply is started, and reversely transmits power to the line; or when a disconnection fault occurs in a phase of a live line crossing the line and the live line is connected to a phase of a power-off line, reverse power transmission is performed on the power-off line. (2) After the circuit breaker trolley is pulled out of the cabinet, whether the circuit has power failure or not is judged by sensing a live display; after the trolley of the road junction box is pulled out of the cabinet, the induction live display indicator lamp is not turned on due to the fact that the induction live display indicator lamp is damaged or a loop fails, and an operator is misled to judge that the line has power failure. At the moment, when the grounding switch is closed on the line side by an operator, the line is electrified, so that a vicious misoperation accident of the electrified grounding switch is caused, and personal casualties and equipment damage accidents can be caused. (3) When new equipment of putting into operation is qualified for the next round of competitions and is carried out nuclear phase with the generating line, because of the cubical switchboard is totally enclosed does not have nuclear phase point, back cabinet door can't open because of circuit earthing switch is not closed, only illegally opens insulating barrier with the insulator spindle by force, and the operation can bring following consequence like this: open insulating barrier by force with the insulator spindle, can damage handcart circuit breaker base link gear, owing to open insulating barrier by force moreover, live-line equipment exposes outside totally, takes place personnel's electric shock accident easily. (4) The nuclear phase is operated in parallel by two sections of buses, and because the switch cabinet is of a totally-enclosed type and has no nuclear phase point, only the rear cabinet door of the bus-bar switch cabinet is opened, at the moment, the two sections of electrified buses are all exposed outside, and because the space is narrow and small, the distance between the phases of the electrified buses is short, the nuclear phase safety distance of installation and maintenance personnel is insufficient, and personal electric shock accidents are caused.
The utility model is an auxiliary device for testing electricity and checking phase of handcart switch cabinet, which comprehensively considers the defects of the prior electricity testing or phase checking method. The handcart type switch cabinet electricity testing and phase checking auxiliary device is a device which is used for testing electricity and is independent of a phase checking phase on a handcart type switch cabinet, is not a handcart type switch cabinet, and is used when an operation and maintenance person needs a bus side or a line side to test electricity and check the phase after pulling a circuit breaker handcart out of the cabinet.
As shown in fig. 1-5, this handcart-type cubical switchboard electricity test, nuclear phase auxiliary device includes that handcart base 1, handcart machinery blocking device 2 and insulating baffle constitute, and handcart base 1 is the cuboid structure, and handcart base 1's bilateral symmetry is equipped with four base pulleys 3, and handcart base 1 who takes base pulley 3 pushes along the cubical switchboard track, and easy operation is convenient. The handcart operation handle 4 is arranged on the end face of the front side of the handcart base 1, and the handcart operation handle 4 is used for pushing and pulling the handcart base 1. The rear side of the top of the handcart base 1 is provided with a handcart mechanical locking device 2, and the front side is provided with an insulation baffle plate capable of overturning; the handcart mechanical locking device 2 is used for opening a fixed contact insulating baffle of the switch cabinet, and the handcart mechanical locking device 2 belongs to the existing product, so that the specific structure diagram is not shown. The insulating barrier is composed of a turnover frame 5 and a transparent acrylic panel 6. The turnover frame 5 can be rotatably positioned on the handcart base 1 through the turnover locking pin 7, and when the turnover frame is required to be positioned, the turnover frame 5 is abutted against the handcart base 1 through the rotation locking pin 7, so that the positioning can be formed. The turning frame 5 is provided with a groove body 10 matched with the handcart mechanical locking device 2, the maximum turning angle of the turning frame 5 is 90 degrees, and the turning frame is perpendicular to the handcart base 1 after being turned for 90 degrees. The both sides of ya keli board panel 6 are fixed on upset frame 5, are equipped with three generating line side electricity testing, nuclear phase trompil 8 and three circuit side electricity testing, nuclear phase trompil 9 on the ya keli board panel 6. When the handcart type switch cabinet electricity testing and phase checking auxiliary device is used, the acrylic plate panel 6 is turned over at a vertical position through the turning frame 5, and when the handcart type switch cabinet electricity testing and phase checking auxiliary device is not used, the turning frame 5 is turned over to a horizontal position to be placed, so that the handcart type switch cabinet electricity testing and phase checking auxiliary device is convenient to store, move and use; meanwhile, when the turnover frame 5 is turned to a horizontal position, the groove body 10 on the turnover frame 5 can effectively prevent the mechanical locking device from opening the insulating baffle plate in the switch cabinet. The acrylic plate panel 6 is transparent and is convenient for observing the internal motion conditions of the handcart type switch cabinet electricity testing and phase checking auxiliary device, the three bus side electricity testing, phase checking open pore 8 and the three line side electricity testing and phase checking open pore 9 are used for the penetration of the contacts of an electricity tester and a phase checking instrument, the exit of the contacts to the bus side of the switch cabinet and the fixed contact of the outgoing line side electricity testing or phase checking, so that the electricity testing and phase checking processes are safe, simple and convenient. In addition, in order to play a warning role, a detachable movable warning cover 16 is further arranged on the bus side electricity testing and nuclear phase opening 8 and the line side electricity testing and nuclear phase opening 9.
The handcart type switch cabinet electricity testing and nuclear phase auxiliary device has the following electricity testing principle description: after the handcart type circuit breaker is pulled out of the switch cabinet, the handcart type circuit breaker is pushed into the handcart type switch cabinet to test the electricity and nuclear phase auxiliary device to a test position, and the insulating baffle plate is automatically opened; the three-phase upper and lower static contacts of a bus side and an outlet side A, B, C of the switch cabinet can be clearly seen through three bus side electricity testing and nuclear phase openings 8 and three line side electricity testing and nuclear phase openings 9 on the acrylic plate panel 6; the static contacts at the bus side and the outlet side can be directly tested by using a corresponding voltage electroscope through the bus side electricity testing and nuclear phase opening 8 and the line side electricity testing and nuclear phase opening 9, and whether the line side is electrified or not is clearly judged; after the electricity is tested, the handcart type switch cabinet electricity testing and phase checking auxiliary device is immediately pulled to a testing position and pulled out of the cabinet, an insulating baffle in the switch cabinet is automatically closed, an operator restores the handcart type circuit breaker, and after a cabinet door of the switch cabinet is closed, an outgoing line side grounding switch is immediately closed, and an outgoing line side grounding disconnecting link is safely and reliably closed after the electricity is tested.
The principle of the nuclear phase of the handcart type switch cabinet electricity testing and nuclear phase auxiliary device is explained as follows: after the handcart type breaker is pulled out of the cabinet, the handcart type breaker is pushed into the handcart type switch cabinet to test the electricity and nuclear phase auxiliary device to a test position, and the insulating baffle plate is automatically opened; the three-phase upper and lower static contacts of a bus side and an outlet side A, B, C of the switch cabinet can be clearly seen through three bus side electricity testing and nuclear phase openings 8 and three line side electricity testing and nuclear phase openings 9 on the acrylic plate panel 6; the phase checking instrument can be used for directly checking the static contacts at the bus side and the outlet side through the bus side electricity checking and phase checking opening 8 and the line side electricity checking and phase checking opening 9, so that the operation is safe, simple, standard and quick, and the equipment is not violated and damaged.
In order to make the handcart type switch cabinet electricity testing and phase checking auxiliary device compatible with various switch cabinets. The base pulley 3 can be designed to be capable of being positioned in a front-back sliding mode relative to the handcart base 1.
Specifically, the base pulley 3 is designed to be composed of a rotating shaft 11, a wheel body 12, a sliding pull rod 13 and a sliding locking pin 14, the sliding pull rod 13 is arranged in the handcart base 1, one end of the sliding pull rod 13 is connected with the wheel body 12 on the outer side of the handcart base 1 through the rotating shaft 11, the other end of the sliding pull rod is in threaded connection with the sliding locking pin 14, a sliding groove matched with the sliding pull rod to slide is formed in the handcart base 1, and a kidney-shaped hole 15 formed by the rotating shaft 11 and the sliding locking pin 14 to slide is formed in the handcart base 1. According to the model of the handcart switch cabinet, the sliding locking pin 14 is pulled to drive the sliding pull rod 13 and the rotating shaft 11 at one end of the sliding pull rod 13 to horizontally slide in the handcart base 1, so that after the position of the wheel body 12 is matched with the switch cabinet track, the sliding locking pin 14 is rotated, and the end head of the sliding locking pin is abutted against the handcart base 1 to form positioning, namely, the compatibility of the handcart switch cabinet electricity testing and nuclear phase auxiliary device is realized.
Claims (5)
1. The utility model provides a handcart-type cubical switchboard tests electricity, nuclear phase auxiliary device which characterized in that: the handcart type switch cabinet electricity testing and nuclear phase auxiliary device comprises a handcart base, a handcart mechanical locking device and an insulating baffle, wherein the handcart base is of a cuboid structure, four base pulleys are symmetrically arranged on two sides of the handcart base, a handcart operation handle is arranged on the end face of the front side of the handcart base, the handcart mechanical locking device is arranged on the rear side of the top of the handcart mechanical locking device, and the insulating baffle capable of being turned over is arranged on the front side of the handcart mechanical locking device; insulating baffle comprises upset frame and transparent ya keli board panel, and on the handcart base was located that the upset frame can rotate the location through upset blocking pin, the both sides of ya keli board panel were fixed on the upset frame, and the ya keli board panel is last to be equipped with three bus side and to test electricity, nuclear phase trompil and three circuit side and to test electricity, nuclear phase trompil.
2. The handcart type switch cabinet electricity testing and phase checking auxiliary device according to claim 1, characterized in that: the turnover frame is provided with a groove body matched with the mechanical handcart locking device, the maximum turnover angle of the turnover frame is 90 degrees, and the turnover frame is perpendicular to the handcart base after being turned over for 90 degrees.
3. The handcart type switch cabinet electricity testing and phase checking auxiliary device according to claim 1, characterized in that: the base pulley can slide the location for handcart base front and back.
4. The handcart type switch cabinet electricity testing and phase checking auxiliary device according to claim 3, characterized in that: the base pulley consists of a rotating shaft, a wheel body, a sliding pull rod and a sliding locking pin, the sliding pull rod is arranged in the handcart base, one end of the sliding pull rod is connected with the wheel body on the outer side of the handcart base through the rotating shaft, and the other end of the sliding pull rod is in threaded connection with the sliding locking pin; the handcart base is provided with a sliding chute matched with the sliding pull rod to slide, and a waist-shaped hole formed by the rotating shaft and the sliding locking pin to slide.
5. The handcart type switch cabinet electricity testing and phase checking auxiliary device according to claim 1, characterized in that: and detachable movable warning covers are further arranged on the bus side electricity testing and nuclear phase opening and the line side electricity testing and nuclear phase opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646256.5U CN215575343U (en) | 2021-03-30 | 2021-03-30 | Electricity testing and phase checking auxiliary device for handcart type switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120646256.5U CN215575343U (en) | 2021-03-30 | 2021-03-30 | Electricity testing and phase checking auxiliary device for handcart type switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215575343U true CN215575343U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120646256.5U Active CN215575343U (en) | 2021-03-30 | 2021-03-30 | Electricity testing and phase checking auxiliary device for handcart type switch cabinet |
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|---|---|
| CN (1) | CN215575343U (en) |
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2021
- 2021-03-30 CN CN202120646256.5U patent/CN215575343U/en active Active
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