On-site calibrator for three-phase electric energy meter

Abstract

The utility model relates to the technical field of calibrators, and provides a three-phase electric energy meter on-site calibrator, which comprises a box body, a cover plate, a calibrator body, a supporting mechanism, a placing and moving mechanism, a baffle plate, a calibration line, a fixing mechanism and a rotary winding mechanism, and is characterized in that the cover plate is hinged on the outer side wall of the top of the box body, and the calibrator body is arranged in the box body; a supporting mechanism is arranged on the outer side wall of the box body and used for supporting the box body, a placement moving mechanism is arranged at the bottom of the supporting mechanism and used for moving the box body, a baffle is fixedly connected to the placement moving mechanism, and a fixing mechanism is arranged on the outer side wall of one side of the box body and used for fixing a verification line. A plurality of rotating winding mechanisms are arranged on the outer side wall of one side of the baffle. According to the technical scheme, the problems that in the prior art, when a calibrator is used for field calibration, frequent movement is needed, all installed wires and accessories need to be disassembled, moved and then installed, and the measurement efficiency is affected are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of calibrating appearance, specifically, relates to a three -phase electric energy meter field appearance. BACKGROUND

[0002] Three -phase electric energy meter field appearance is a kind of instrument for calibrating three -phase electric energy meter on site, is widely used in electric power, metallurgy, chemical industry, tobacco, textile, railway, ship, property etc., uses high-precision internal mutual inductor and clamp type mutual inductor to sample, can quickly, safely and reliably measure metering meter error and wiring error, provides the basis for electric power system metering personnel correct metering, pursues the electric quantity for the electric quantity.

[0003] Three -phase electric energy meter needs to be measured according to the direction of actual need when measuring, needs to carry all the current measurement line, voltage measurement line and clamp type current mutual inductor and other wiring tools needed when measuring, and these lines are often relatively disorderly and heavy, and there are more accessories, when carrying and arranging, it is not very convenient, simultaneously needs to use the user frequently to move when measuring, after measuring a place, again measure the next place, need to remove all the lines and accessories when moving, and take it to the next place to be measured, again install measurement, this can increase a lot of measurement time, reduce work efficiency, and accessories are easily lost. UTILITY MODEL CONTENTS

[0004] The utility model provides a three -phase electric energy meter field appearance, solve the problem of related art because calibrating appearance needs to be moved frequently when using on site, and need to remove all the installed lines and accessories to move and install again, influence measurement efficiency.

[0005] The technical scheme of the utility model is as follows:

[0006] A three -phase electric energy meter field appearance, including box, cover plate and calibrating appearance body, the cover plate is hinged on the outer side wall on the top of the box, the calibrating appearance body is installed in the inside of the box, still include:

[0007] Support mechanism, the outer side wall on the box is provided with the support mechanism, and the support mechanism is used to support the box;

[0008] Place moving mechanism, the bottom of the support mechanism is provided with the place moving mechanism, and the place moving mechanism is used to move the box;

[0009] Baffle, the baffle is fixedly connected on the place moving mechanism;

[0010] Calibration line;

[0011] The fixing mechanism is arranged on the outer side wall of one side of the box body, and is used for fixing the calibration line.

[0012] The rotating winding mechanism is arranged on the outer side wall of one side of the baffle, and is used for winding the calibration line.

[0013] Preferably, the supporting mechanism comprises:

[0014] The fixing frame is fixedly connected to the outer side wall of the box body close to the bottom;

[0015] The four supporting columns are fixedly connected to the bottom of the fixing frame in a rectangular shape.

[0016] Preferably, the placing moving mechanism comprises:

[0017] The supporting plate is fixedly connected to one end of the four supporting columns away from the fixing frame, and the top of the supporting plate is fixedly connected to the baffle;

[0018] The four supporting rods are fixedly connected to the bottom of the supporting plate in a rectangular shape;

[0019] The self-locking wheel is installed at one end of each of the supporting rods away from the supporting plate.

[0020] Preferably, the fixing mechanism comprises:

[0021] The fixing sleeve is fixedly connected to the outer side wall of one side of the box body;

[0022] The limiting frame is fixedly connected to the outer side wall of one side of the fixing frame;

[0023] The limiting sleeve is fixedly connected in the fixing sleeve, the bottom of the limiting sleeve is fixedly connected to the bottom of the limiting frame, and the calibration line is slidingly connected to the inner wall of the limiting sleeve.

[0024] Preferably, the rotating winding mechanism comprises:

[0025] The motor is installed on the outer side wall of one side of the baffle;

[0026] The rotating shaft is fixedly connected to the output end of each of the motors, and one end of the calibration line away from the limiting sleeve is wound on the rotating shaft.

[0027] Further, the supporting plate is disc-shaped.

[0028] Further, the plurality of fixing sleeves and the plurality of limiting frames are parallel.

[0029] Further, the end of the rotating shaft away from the motor is threadedly connected with a fixing buckle, and the end of the rotating shaft away from the motor has a thread line matched with the fixing buckle.

[0030] Further, the top of the limiting sleeve is made of silica gel.

[0031] Further, the check line is electrically connected with the check instrument body when detecting.

[0032] The working principle and beneficial effects of the utility model are as follows:

[0033] In the utility model, when the on-site check instrument is used to check the three-phase electric energy meter, the check instrument is first moved to the position to be checked through the placing and moving mechanism, then the check line is taken off from the rotating winding mechanism, one end is inserted into the check instrument body through the fixing mechanism, and the other end clamps the three-phase electric energy meter, at this time, other accessories can be taken off from the placing and moving mechanism and installed before checking, at this time, the check instrument body can be started to check, then one end clamped on the three-phase electric energy meter can be taken off after checking, and is placed on the placing and moving mechanism, the rotating winding mechanism is started again, the check line is wound on the rotating winding mechanism, at this time, one end inserted into the check instrument body is taken off, and one check is completed, compared with the prior art, all check lines and accessories do not need to be taken off, after checking one place, the check instrument can be directly pushed to the next position to be checked, the checking efficiency is improved, and the loss of part of accessories is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0034] The utility model will be explained further in detail in combination with the drawings and specific embodiment.

[0035] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0036] Fig. 2 It is the structure schematic diagram of the fixed frame, support and support plate cooperation in the utility model;

[0037] Fig. 3 It is the structure schematic diagram of the box body, check instrument body and baffle cooperation in the utility model;

[0038] Fig. 4 It is the structure schematic diagram of the baffle, motor and rotating shaft cooperation in the utility model.

[0039] In the diagram: 1. Box body; 2. Cover plate; 3. Calibrator body; 4. Baffle; 5. Calibration line; 6. Fixing buckle; 101. Fixing frame; 102. Support column; 201. Support plate; 202. Support rod; 203. Self-locking wheel; 301. Fixing sleeve; 302. Limiting frame; 303. Limiting sleeve; 401. Motor; 402. Rotating shaft. Detailed Implementation

[0040] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0041] like Figs. 1 to 4 As shown in the figure, this embodiment proposes a three-phase power meter field calibrator, including a housing 1, a cover plate 2, and a calibrator body 3. The cover plate 2 is hinged to the outer side wall of the top of the housing 1. The calibrator body 3 is installed inside the housing 1. It also includes a support mechanism, a placement and moving mechanism, a baffle 4, a calibration line 5, a fixing mechanism, and a rotating winding mechanism. The support mechanism is provided on the outer side wall of the housing 1 to support the housing 1. The placement and moving mechanism is provided at the bottom of the support mechanism to move the housing 1. The baffle 4 is fixedly connected to the placement and moving mechanism. The fixing mechanism is provided on the outer side wall of one side of the housing 1 to fix the calibration line 5. Multiple rotating winding mechanisms are provided on the outer side wall of one side of the baffle 4 to wind up the calibration line 5.

[0042] In this embodiment, the support mechanism includes a fixed frame 101 and pillars 102. The fixed frame 101 is fixedly connected to the outer side wall of the box 1 near the bottom. The bottom of the fixed frame 101 is rectangular and fixedly connected to four pillars 102.

[0043] In this embodiment, the moving mechanism includes a support plate 201, support rods 202, and self-locking wheels 203. The support plate 201 is fixedly connected to one end of the four pillars 102 away from the fixed frame 101, and a baffle 4 is fixedly connected to the top of the support plate 201. The bottom of the support plate 201 is rectangular and fixedly connected to four support rods 202. Each support rod 202 is equipped with a self-locking wheel 203 at one end away from the support plate 201. The support plate 201 is disc-shaped to place the accessories and calibration line 5, and to prevent the accessories from falling outside during the movement of the calibration instrument body 3.

[0044] In the embodiment, the fixing mechanism includes fixing sleeves 301, limiting frames 302 and limiting sleeves 303, a plurality of fixing sleeves 301 are fixedly connected to the outer side wall of one side of the box body 1, a plurality of limiting frames 302 are fixedly connected to the outer side wall of one side of the fixed frame 101, the limiting sleeve 303 is fixedly connected in the fixing sleeve 301, the bottom of the limiting sleeve 303 is fixedly connected with the bottom of the limiting frame 302, the calibration line 5 is slidably connected to the inner wall of the limiting sleeve 303, the plurality of fixing sleeves 301 and the plurality of limiting frames 302 are parallel, which is to fix the calibration line 5 in the limiting sleeve 303 to avoid mechanical interference or jamming of the calibration line 5, the top of the limiting sleeve 303 is made of silica gel, which is to increase the friction so that the calibration line 5 cannot be easily detached when electrically connected with the calibrator body 3, the calibration line 5 is electrically connected with the calibrator body 3 when detecting, and only through the electrical connection can the calibrator body 3 check the three-phase electric energy meter connected to the other end of the calibration line 5 after starting.

[0045] In the embodiment, the rotating winding mechanism includes motors 401 and rotating shafts 402, a plurality of motors 401 are installed on the outer side wall of one side of the baffle 4, the rotating shaft 402 is fixedly connected to the output end of each motor 401, one end of the calibration line 5 away from the limiting sleeve 303 is wound on the rotating shaft 402, the rotating shaft 402 away from the motor 401 is threadedly connected with the fixing buckle 6, and the rotating shaft 402 away from the motor 401 has a thread line matched with the fixing buckle 6, which is to avoid the detached calibration line 5 from affecting the overall appearance.

[0046] In this embodiment, when the on-site calibrator is used to calibrate the three-phase electric energy meter, first, the self-locking wheel 203 is opened, the user pushes the fixed frame 101, and the calibrator body 3 is moved to the position to be calibrated through the self-locking wheel 203. After moving to the position to be calibrated, the self-locking wheel 203 is closed to prevent the calibrator body 3 from being moved randomly during the wiring installation process. Then the user pulls the calibration line 5 out of the limiting sleeve 303, one end of which is electrically connected to the calibrator body 3, and the fixing buckle 6 is rotated off the rotating shaft 402. Then the other end of the calibration line 5 can be clamped to the position to be calibrated. At this time, the accessories placed on the supporting plate 201 can be taken out and installed. Then the calibrator body 3 can be started, and the calibrator body 3 can be calibrated. After the calibration of this position is completed, the calibration line 5 clamped to the position to be calibrated can be loosened, the self-locking wheel 203 is opened, and the calibrator body 3 is pushed to the next position to be calibrated. At this time, the self-locking wheel 203 can be closed, and the calibration line 5 can be clamped to the position to be calibrated. The calibrator body 3 is started for calibration. When the calibration of all positions is completed, the clamped end can be loosened, the calibration line 5 can be wound on the rotating shaft 402, and then the motor 401 is started. The motor 401 drives the rotating shaft 402 to rotate, which is to wind the calibration line 5. Then, after waiting for the calibration line 5 to be wound, the fixing buckle 6 can be twisted on the rotating shaft 402 again, the accessories can be taken off and placed on the supporting plate 201, then the self-locking wheel 203 is opened, and the calibrator body 3 is pushed back to the placed position for arrangement and storage.

[0047] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A three-phase power meter field calibrator, comprising a housing (1), a cover plate (2), and a calibrator body (3), wherein the cover plate (2) is hinged to the outer side wall of the top of the housing (1), and the calibrator body (3) is installed inside the housing (1), characterized in that, Also includes: The support mechanism is provided on the outer side wall of the box (1) and is used to support the box (1). The placement and moving mechanism is provided at the bottom of the support mechanism. The placement and moving mechanism includes a disc-shaped support plate (201), a support rod (202), and a self-locking wheel (203) for moving the box (1) and placing calibration accessories. Baffle (4), the baffle (4) is fixedly connected to the placement and moving mechanism; Check line (5); The fixing mechanism is set on the outer side wall of the box (1) and includes a limiting sleeve (303). The top of the limiting sleeve (303) is made of silicone. The fixing mechanism is used to fix and guide the calibration line (5) to prevent the connection end of the calibration line (5) from falling off the calibration instrument body (3). The rotating winding mechanism is provided on the outer side wall of the baffle (4). The rotating winding mechanism includes a motor (401), a rotating shaft (402) and a fixing buckle (6). The fixing buckle (6) is threaded to the end of the rotating shaft (402) away from the motor (401). The rotating winding mechanism is used to automatically wind up the inspection line (5) and prevent it from coming loose after winding.

2. A three-phase power meter field verification instrument according to claim 1, characterized in that, The supporting structure includes: Fixed frame (101), the fixed frame (101) is fixedly connected to the outer side wall of the box (1) near the bottom. The bottom of the fixed frame (101) is rectangularly fixedly connected with four pillars (102), and one end of each pillar (102) away from the fixed frame (101) is fixedly connected to the support plate (201).

3. A three-phase power meter field tester according to claim 2, characterized in that, The support rod (202) of the moving mechanism is rectangularly fixed to the bottom of the support plate (201), and the self-locking wheel (203) is installed at the end of the support rod (202) away from the support plate (201).

4. A three-phase power meter field tester according to claim 3, characterized in that, The fixing mechanism also includes: Fixed sleeve (301), a plurality of fixed sleeves (301) are fixedly connected to the outer side wall of one side of the box (1). A limiting frame (302) is fixedly connected to the outer side wall of one side of the fixed frame (101). The limiting sleeve (303) is fixedly connected inside the fixed sleeve (301), and the bottom of the limiting sleeve (303) is fixedly connected to the bottom of the limiting frame (302). The multiple fixed sleeves (301) and the multiple limiting frames (302) are all parallel.

5. A three-phase power meter field verification instrument according to claim 4, characterized in that, The rotating shaft (402) of the rotating winding mechanism is fixedly connected to the output end of the motor (401). The end of the calibration line (5) away from the limiting sleeve (303) is wound around the rotating shaft (402). The end of the rotating shaft (402) away from the motor (401) is provided with a threaded wire that matches the fixing buckle (6).

6. A three-phase power meter field tester according to claim 5, characterized in that, When the test line (5) is tested, it is electrically connected to the test instrument body (3). The electrical connection end of the test line (5) and the test instrument body (3) is set close to the top of the silicone material limiting sleeve (303).

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