CN211786061U

CN211786061U - Metering calibrating device of grounding resistance tester

Info

Publication number: CN211786061U
Application number: CN202020315356.5U
Authority: CN
Inventors: 周华文; 周翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-14
Filing date: 2020-03-14
Publication date: 2020-10-27
Anticipated expiration: 2030-03-14

Abstract

The utility model discloses a ground resistance tester's metrological verification device, including the cabinet body, environment adjustment mechanism, performance measurement verification mechanism, outward appearance verification mechanism, control mechanism, receiver and examination result record auxiliary assembly, it is internal that environment adjustment mechanism and performance measurement verification mechanism locate the cabinet, it is internal that outward appearance verification mechanism is scalable to locate the cabinet, control mechanism locates on the cabinet side wall, receiver and examination result record auxiliary assembly locate on the cabinet side wall. The utility model belongs to the technical field of detection device, specifically provide a be convenient for remove, provide stable metrological verification environment, guarantee that the verification result is accurate, be convenient for examine and determine the metrological verification device of earth resistance tester who observes comprehensively.

Description

Metering calibrating device of grounding resistance tester

Technical Field

The utility model belongs to the technical field of detection device, specifically indicate a metrological verification device of ground resistance tester.

Background

The ground resistance tester is a novel digital ground resistance tester which abandons the traditional manual hand-operated power generation working mode, adopts an advanced large-scale integrated circuit and combines the three-terminal button and four-terminal button measuring modes into one model by applying a DC/AC conversion technology, is suitable for measuring the ground resistance of various devices and measuring the conductor resistance value of low resistance in departments such as electric power, post and telecommunications, railways, communication, mines and the like, needs a large-scale detection platform and instrument for the measurement and the detection of the ground resistance tester, has strict requirements on the environment when the ground resistance tester detects, needs to keep the environmental temperature at 23 +/-5 ℃, needs to keep the relative humidity at 40-75 percent, is limited to conditions because a large-scale detection platform which meets the measurement and detection requirements is adopted by a measurement institute for detection, cannot set up a large-scale detection platform for detecting the ground resistance tester at present in an enterprise unit, all the instruments are sent to a measuring yard for detection, and are relatively complex, long in detection period and high in cost.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned current difficult problem, the utility model provides a be convenient for remove, provide stable metrological verification environment, guarantee that the verification result is accurate, be convenient for examine and determine the metrological verification device who observes ground resistance tester comprehensively.

The utility model adopts the following technical scheme: the utility model relates to a metrological verification device of a ground resistance tester, which comprises a cabinet body, an environment adjusting mechanism, a performance metrological verification mechanism, an appearance verification mechanism, a control mechanism, a storage box and a verification result recording auxiliary component, wherein the environment adjusting mechanism and the performance metrological verification mechanism are arranged in the cabinet body, the appearance verification mechanism is telescopically arranged in the cabinet body, the control mechanism is arranged on the side wall of the cabinet body, the storage box and the verification result recording auxiliary component are arranged on the side wall of the cabinet body, the storage box is convenient for placing wires and paper pens required by staff during metrological verification, the cabinet body is arranged in a hollow cavity, the upper wall of the cabinet body is provided with an upper cover, the side wall of the cabinet body is hinged with a cabinet door, the cabinet body comprises a verification instrument placing line cavity and an instrument placing cavity, the verification instrument placing line cavity is arranged, the instrument placing cavity is symmetrically arranged at two sides of the calibrating instrument placing connecting line cavity, the environment adjusting mechanism and the appearance calibrating mechanism are arranged in the calibrating instrument placing connecting line cavity, the performance measurement verification mechanism is arranged in the instrument placing cavity, the appearance verification mechanism comprises a lifting cylinder, a rotating motor and a lifting platform, the lifting cylinder is arranged at the central part of the bottom wall of the connecting line placing cavity of the calibrating instrument, the rotating motor is arranged at the upper end of the lifting cylinder, lifting platform locates the rotating electrical machines top, lifting platform is the disc setting, and lifting platform is convenient for place the ground resistance tester and carry out the metrological verification, thereby the lift cylinder drives lifting platform rising decline and stretches out or indent internal, is convenient for carry out outward appearance examination and performance examination to the ground resistance tester, and rotating electrical machines drives lifting platform and rotates, can observe whether there is the defect ground resistance tester outward appearance in the multi-angle when being convenient for examine and determine ground resistance tester outward appearance.

Further, environment adjustment mechanism includes temperature sensor, humidity transducer, controller and radiator fan, it is internal that temperature sensor and humidity transducer locate the cabinet, it is internal that the cabinet is located to the controller, radiator fan runs through on locating the cabinet side wall, temperature sensor, humidity transducer, radiator fan respectively with controller electric connection, the temperature and the humidity of the internal environment of temperature sensor and humidity transducer real-time detection cabinet send for the controller in real time, thereby the controller makes the temperature of the internal environment of cabinet keep at 23 ℃ +/-5 ℃ according to the operation of the temperature and the humidity data intelligent control radiator fan of the internal environment of cabinet, relative humidity keeps at 40% -75%, reaches the standard environmental condition of ground resistance tester examination, guarantees the accuracy of examination result.

Further, the performance measurement verification mechanism comprises a true effective value standard voltmeter, a true effective value standard ammeter, a standard resistor, a leakage current tester and a voltage-withstanding tester, wherein the true effective value standard voltmeter, the true effective value standard ammeter, the standard resistor, the leakage current tester and the voltage-withstanding tester are arranged in the instrument placing cavity, the true effective value standard voltmeter, the true effective value standard ammeter, the standard resistor, the leakage current tester and the voltage-withstanding tester are respectively provided with a voltage verification connecting terminal, a current verification connecting terminal, a resistance verification connecting terminal, a current leakage verification connecting terminal and a voltage-withstanding verification connecting terminal, the voltage connecting terminal, the current verification connecting terminal, the resistance verification connecting terminal, the current leakage verification connecting terminal and the voltage-withstanding verification connecting terminal are arranged in the verification instrument placing connecting cavity, the grounding resistance tester is respectively connected with the voltage verification connecting terminal, the current verification connecting terminal, the resistance verification connecting terminal, the current leakage verification connecting terminal and the voltage-withstanding verification connecting terminal according to verification items through leads so as to realize multi-item comprehensive and rapid verification of the grounding resistance tester.

Further, the control mechanism comprises a control panel and a verification result display screen, the control panel and the verification result display screen are arranged on the upper wall of the cabinet body, the control panel is provided with a cylinder button, a motor button, a current verification button, a voltage verification button, a resistance verification button, a current leakage verification button and a voltage-resistant verification button, the cylinder button is electrically connected with the lifting cylinder, the motor button is electrically connected with the rotating motor, the current verification button, the voltage verification button, the resistance verification button, the current leakage verification button and the voltage-resistant verification button are respectively electrically connected with the true effective value standard voltmeter, the true effective value standard ammeter, the standard resistor, the leakage current tester and the voltage-resistant tester to control the true effective value standard voltmeter, the true effective value standard ammeter, the standard resistor, the leakage current tester and the voltage-resistant tester, the true effective value standard voltmeter, the true effective value standard ammeter, the standard resistor, the leakage current tester and the voltage withstanding tester are respectively and electrically connected with the verification result display screen, and the verification result display screen displays the verification result in real time, so that the staff can conveniently observe and record.

Further, examination result record auxiliary assembly includes the articulated elements, places recess, backup pad and the spacing recess of slant, the cabinet side wall is located to the articulated elements rigid coupling, it locates on the articulated elements to place the recess, the backup pad is articulated to be located and is placed on the recess is close to one side lateral wall of the cabinet body, the equidistant range of the spacing recess of slant is located on the cabinet side wall and is located and place the recess rear, through with the backup pad joint realize the backup pad in the spacing recess of the slant of co-altitude not the regulation of co-altitude to placing the recess, place the recess and be convenient for place the file of record examination result, be convenient for support the staff and carry out the record to the metrological examination result of ground resistance tester.

Furthermore, the side wall of the cabinet body is provided with a power plug, and the power plug is convenient for connecting an external power supply to supply power for the device.

Further, the lateral wall of the cabinet body is provided with a handle, the lower wall of the cabinet body is provided with trundles, so that the metering calibrating device of the ground resistance tester can be conveniently moved, and the grounding calibrating device is suitable for various calibrating scenes.

Adopt above-mentioned structure the utility model discloses the beneficial effect who gains as follows: this scheme ground resistance tester's metrological verification device reasonable in design, be convenient for remove through setting up handle and truckle, adapt to multiple detection area, build the standard environment who is fit for the metrological verification through environment adjustment mechanism, it is accurate to guarantee ground resistance tester's metrological verification result, it is internal in mobilizable cabinet to integrate through multiple instrument, realize ground resistance tester's quick comprehensive examination measurement, and is convenient and fast, the measurement cycle is short, it examines and determine the result to be convenient for supplementary staff connecting wire through examination result record auxiliary assembly and receiver, it observes the examination result to be convenient for staff through examining result display screen, the cost of examining and determine has effectively been reduced.

Drawings

Fig. 1 is a schematic structural view of a metrological verification device of a ground resistance tester of the present invention;

fig. 2 is a schematic view of the internal structure of a metrological verification device of the ground resistance tester of the present invention;

fig. 3 is a top view of a metrological verification apparatus of the ground resistance tester of the present invention;

fig. 4 is the utility model relates to a ground resistance tester's metrological verification device lift cylinder rises state schematic diagram.

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings: 1. a cabinet body, 2, an environment adjusting mechanism, 3, a performance metering verification mechanism, 4, an appearance verification mechanism, 5, a control mechanism, 6, a storage box, 7, a verification result recording auxiliary component, 8, an upper cover, 9, a cabinet door, 10, a verification instrument placing connecting line cavity, 11, an instrument placing cavity, 12, a lifting cylinder, 13, a rotating motor, 14, a lifting platform, 15, a temperature sensor, 16, a humidity sensor, 17, a controller, 18, a cooling fan, 19, a true effective value standard voltmeter, 20, a true effective value standard ammeter, 21, a standard resistor, 22, a leakage current tester, 23, a voltage-resistant tester, 24, a control panel, 25, a verification result display screen, 26, a cylinder button, 27, a motor button, 28, a current verification button, 29, a voltage verification button, 30, a resistance verification button, 31, a current leakage verification button, 32. withstand voltage verification button 33, hinge joint 34, placing groove 35, support plate 36, oblique limiting groove 37, power plug 38, handle 39, caster 40, voltage verification connecting terminal 41, current verification connecting terminal 42, resistance verification connecting terminal 43, current leakage verification connecting terminal 44 and withstand voltage verification connecting terminal.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-4, the utility model relates to a metrological verification device of ground resistance tester, including cabinet body 1, environment adjustment mechanism 2, performance metrological verification mechanism 3, outward appearance verification mechanism 4, control mechanism 5, receiver 6 and verification result record auxiliary assembly 7, environment adjustment mechanism 2 and performance metrological verification mechanism 3 locate in cabinet body 1, outward appearance verification mechanism 4 is scalable to be located in cabinet body 1, control mechanism 5 locates on the cabinet body 1 lateral wall, receiver 6 and verification result record auxiliary assembly 7 locate on the cabinet body 1 lateral wall, receiver 6 is convenient for place the required paper pen when wire and staff's metrological verification, conveniently records the verification result; the cabinet body 1 is a hollow cavity, the upper wall of the cabinet body 1 is provided with an upper cover 8, the side wall of the cabinet body 1 is hinged with a cabinet door 9, the cabinet body 1 comprises a calibration instrument placing connecting line cavity 10 and an instrument placing cavity 11, the calibration instrument placing connecting line cavity 10 is arranged in a T shape, the instrument placing cavity 11 is symmetrically arranged at two sides of the calibrating instrument placing connecting line cavity 10, the environment adjusting mechanism 2 and the appearance calibrating mechanism 4 are arranged in the calibrating instrument placing connecting line cavity 10, the performance measurement verification mechanism 3 is arranged in the instrument placing cavity 11, the appearance verification mechanism 4 comprises a lifting cylinder 12, a rotating motor 13 and a lifting platform 14, the lifting cylinder 12 is arranged at the central part of the bottom wall of the connecting line cavity 10 for placing the calibration instrument, the rotating motor 13 is arranged at the upper end of the lifting cylinder 12, the lifting platform 14 is arranged above the rotating motor 13, and the lifting platform 14 is arranged in a disc shape.

Wherein, environment adjustment mechanism 2 includes temperature sensor 15, humidity transducer 16, controller 17 and radiator fan 18, temperature sensor 15 and humidity transducer 16 locate the cabinet 1 in, controller 17 locates in the cabinet 1, radiator fan 18 runs through and locates on the cabinet 1 lateral wall, temperature sensor 15, humidity transducer 16, radiator fan 18 respectively with controller 17 electric connection, performance measurement verification mechanism 3 includes true effective value standard voltmeter 19, true effective value standard ammeter 20, standard resistor 21, leakage current tester 22 and withstand voltage tester 23, true effective value standard voltmeter 19, true effective value standard ammeter 20, standard resistor 21, leakage current tester 22 and withstand voltage tester 23 locate in the instrument placing cavity 11, true effective value standard voltmeter 19, true effective value standard ammeter 20, The standard resistor 21, the leakage current tester 22 and the withstand voltage tester 23 are respectively provided with a voltage verification connecting terminal 40, a current verification connecting terminal 41, a resistance verification connecting terminal 42, a current leakage verification connecting terminal 43 and a withstand voltage verification connecting terminal 44, the voltage verification connecting terminal 40, the current verification connecting terminal 41, the resistance verification connecting terminal 42, the current leakage verification connecting terminal 43 and the withstand voltage verification connecting terminal 44 are arranged in the verification instrument placing connecting line cavity 10, and the grounding resistance tester is respectively connected with the voltage verification connecting terminal 40, the current verification connecting terminal 41, the resistance verification connecting terminal 42, the current leakage verification connecting terminal 43 and the withstand voltage verification connecting terminal 44 through leads according to verification items to realize multi-item comprehensive and rapid verification of the grounding resistance tester; control mechanism 5 includes control panel 24 and examination result display screen 25, control panel 24 and examination result display screen 25 locate the cabinet body 1 upper wall, last cylinder button 26, motor button 27, the electric current examination button 28, the voltage examination button 29, the resistance examination button 30, the electric current leakage examination button 31 and the withstand voltage examination button 32 of being equipped with of control panel 24, cylinder button 26 and lift cylinder 12 electric connection, motor button 27 and rotating electrical machines 13 electric connection, the electric current examination button 28, the voltage examination button 29, the resistance examination button 30, the electric current leakage examination button 31, the withstand voltage examination button 32 respectively with true effective value standard voltmeter 19, true effective value standard ammeter 20, standard resistor 21, leakage current tester 22, withstand voltage tester 23 electric connection, true effective value standard voltmeter 19, The true effective value standard ammeter 20, the standard resistor 21, the leakage current tester 22 and the voltage withstanding tester 23 are respectively electrically connected with the verification result display screen 25; examination result record auxiliary assembly 7 includes articulated elements 33, places recess 34, backup pad 35 and the spacing recess 36 of slant, the lateral wall of the cabinet body 1 is located to articulated elements 33 rigid coupling, it articulates on locating articulated elements 33 to place recess 34, backup pad 35 articulates to locate on placing recess 34 and being close to one side lateral wall of the cabinet body 1, the equidistant range of the spacing recess 36 of slant is located on the lateral wall of the cabinet body 1 and is located and place recess 34 rear, the lateral wall of the cabinet body 1 is equipped with power plug 37, the lateral wall of the cabinet body 1 is equipped with handle 38, the cabinet body 1 lower wall is equipped with truckle 39.

When the grounding resistance tester is used specifically, the cabinet body 1 is pushed to an instrument to be tested by holding the handle 38, the power plug 37 is connected with an external power supply, the upper cover 8 is opened, the grounding resistance tester is placed on the lifting platform 14, the lifting cylinder 12 and the rotating motor 13 are controlled to work by pressing the cylinder button 26 and the motor button 27, the lifting cylinder 12 drives the rotating motor 13 and the lifting platform 14 to extend and rise so as to extend out of the cabinet body 1, the rotating motor 13 drives the lifting platform 14 to rotate, so that a worker can conveniently observe whether the appearance of the grounding resistance tester is verified in a short distance, after the appearance verification is finished, the cylinder button 26 is pressed again, the lifting cylinder 12 contracts and descends to drive the lifting platform 14 and the grounding resistance tester to retract into the cabinet body 1, the upper cover 8 is covered, and the controller 17 controls the temperature sensor 15 and the humidity sensor 16 to detect the temperature and the humidity of the environment in the cabinet body 1 in real, the controller 17 intelligently controls the operation of the cooling fan 18 according to the temperature and humidity data of the environment in the cabinet 1, so that the temperature of the environment in the cabinet 1 is kept at 23 +/-5 ℃, the relative humidity is kept at 40-75%, the standard environment condition for the verification of the grounding resistance tester is achieved, the accuracy of the verification result is ensured, a worker takes out a lead from the storage box 6, opens the cabinet door 9 or the upper cover 8, selects corresponding connecting terminals from the voltage verification connecting terminal 40, the current verification connecting terminal 41, the resistance verification connecting terminal 42, the current leakage verification connecting terminal 43 and the voltage-resistant verification connecting terminal 44 according to verification items to be connected to realize the comprehensive and rapid verification of multiple items of the grounding resistance tester, closes the upper cover 8 and the cabinet door 9 again after the lead is connected to ensure the environment to be verified, the verification is carried out according to the verification items, the current verification button 28, the, The voltage verification button 29, the resistance verification button 30, the current leakage verification button 31 and the voltage withstanding verification button 32 respectively control the switches of the true effective value standard voltmeter 19, the true effective value standard ammeter 20, the standard resistor 21, the leakage current tester 22 and the voltage withstanding tester 23 so as to control the corresponding instruments to perform verification metering, the verification result display screen 25 displays the verification result in real time, when the verification result needs to be recorded, a worker holds the support plate 35 and inserts the support plate 35 into the oblique limiting groove 36 with the proper height according to the height so that the support plate 35 can support the placement groove 34, and the record file can be taken out of the storage box 6 and recorded in the placement groove 34.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a metrological calibrating installation of ground resistance tester which characterized in that: the multifunctional cabinet comprises a cabinet body, an environment adjusting mechanism, a performance metering verification mechanism, an appearance verification mechanism, a control mechanism, a storage box and a verification result recording auxiliary assembly, wherein the environment adjusting mechanism and the performance metering verification mechanism are arranged in the cabinet body, the appearance verification mechanism is telescopically arranged in the cabinet body, the control mechanism is arranged on the side wall of the cabinet body, the storage box and the verification result recording auxiliary assembly are arranged on the side wall of the cabinet body, the cabinet body is in a hollow cavity arrangement, the upper wall of the cabinet body is provided with an upper cover, the side wall of the cabinet body is hinged with a cabinet door, the cabinet body comprises a verification instrument placing line cavity and an instrument placing cavity, the verification instrument placing line cavity is in a T-shaped arrangement, the instrument placing cavity is symmetrically arranged at two sides of the verification instrument placing line cavity, the environment adjusting mechanism and the appearance verification mechanism are arranged in the verification instrument, the appearance verification mechanism comprises a lifting cylinder, a rotating motor and a lifting platform, the lifting cylinder is arranged at the central part of the bottom wall of the wire connecting cavity of the verification instrument, the rotating motor is arranged at the upper end of the lifting cylinder, the lifting platform is arranged above the rotating motor, and the lifting platform is arranged in a disc manner.

2. The metrological verification device of a ground resistance tester of claim 1, characterized in that: the environment adjusting mechanism comprises a temperature sensor, a humidity sensor, a controller and a cooling fan, wherein the temperature sensor and the humidity sensor are arranged in the cabinet body, the controller is arranged in the cabinet body, the cooling fan penetrates through the side wall of the cabinet body, and the temperature sensor, the humidity sensor and the cooling fan are respectively electrically connected with the controller.

3. The metrological verification device of a ground resistance tester of claim 1, characterized in that: the performance measurement and verification mechanism comprises a true effective value standard voltmeter, a true effective value standard ammeter, a standard resistor, a leakage current tester and a voltage-withstanding tester, the true effective value standard voltmeter, the true effective value standard ammeter, the standard resistor, the leakage current tester and the voltage-withstanding tester are arranged in the instrument placing cavity, the true effective value standard voltmeter, the true effective value standard ammeter, the standard resistor, the leakage current tester and the voltage-resistant tester are respectively provided with a voltage verification connecting terminal, a current verification connecting terminal, a resistance verification connecting terminal, a current leakage verification connecting terminal and a voltage-resistant verification connecting terminal, the voltage detection connecting terminal, the current detection connecting terminal, the resistance detection connecting terminal, the current leakage detection connecting terminal and the voltage-resistant detection connecting terminal are arranged in a detection instrument placing connecting line cavity.

4. The metrological verification device of a ground resistance tester of claim 3, characterized in that: control mechanism includes control panel and examination result display screen, the cabinet body upper wall is located to control panel and examination result display screen, last cylinder button, motor button, the electric current examination button, the voltage examination button, the resistance examination button, the current leakage examination button and the withstand voltage examination button of being equipped with of control panel, cylinder button and lift cylinder electric connection, motor button and rotating electrical machines electric connection, the electric current examination button, the voltage examination button, the resistance examination button, the current leakage examination button, withstand voltage examination button respectively with true effective value standard voltmeter, true effective value standard ammeter, standard resistor, leakage current tester, withstand voltage tester electric connection.

5. The metrological verification device of a ground resistance tester of claim 1, characterized in that: the auxiliary assembly for recording the verification result comprises an articulated piece, a placing groove, a supporting plate and an oblique limiting groove, the articulated piece is fixedly connected with the side wall of the cabinet body, the placing groove is hinged to the articulated piece, the supporting plate is hinged to the side wall of the side, close to the cabinet body, of the placing groove, and the oblique limiting groove is arranged on the side wall of the cabinet body at equal intervals and is located behind the placing groove.

6. The metrological verification device of a ground resistance tester of claim 1, characterized in that: and a power plug is arranged on the side wall of the cabinet body.

7. The metrological verification device of a ground resistance tester of claim 1, characterized in that: the cabinet side wall is provided with a handle, and the lower wall of the cabinet is provided with trundles.