CN213275770U

CN213275770U - Digital ground resistance tester

Info

Publication number: CN213275770U
Application number: CN202021536438.9U
Authority: CN
Inventors: 伍军
Original assignee: Guangdong Jun'an Zhiyuan Technology Co ltd
Current assignee: Guangdong Jun'an Zhiyuan Technology Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-05-25
Anticipated expiration: 2030-07-23

Abstract

The utility model discloses a digital ground resistance tester, which comprises a resistance tester body and a ground part, wherein the ground part is arranged at one side of the resistance tester body, the ground resistance tester is specially designed and manufactured for measuring ground resistance on site, the mounted fixed block can fix a simple test wire after the simple test wire is connected with a test wire interface area, and errors caused by incomplete insertion of the simple test wire into the test wire interface area or poor contact are avoided, the measurement of the on-site low-value grounding resistance is more accurate, the measurement accuracy is higher, and after the short joints of the test line are connected, personnel insert the inboard of constant head tank with the cardboard, make it can the chucking test wire short joint, insert back spacing groove and slot to it, personnel can insert the downthehole spacing fixed to it of spacing groove and slot through the inserted block, make it be convenient for fix, and easy dismounting person of being convenient for adjusts the use.

Description

Digital ground resistance tester

Technical Field

The utility model relates to a resistance tester technical field specifically is a digital ground resistance tester.

Background

The resistance tester is widely applied to occasions such as electrical safety inspection and grounding engineering completion inspection, and the like, and has various types including a ground resistance tester, an insulation resistance tester, a direct current resistance measuring instrument, a surface resistance tester and a loop resistance tester.

Most ground resistance tester has the practicality lower when using now on the market, easily causes the condition that test line interface district contact failure or drop during the connection, causes the measured value error to appear easily, makes its measurement accuracy unsatisfactory, and needs the work piece to be unsatisfactory because of the regulation nature when it is fixed, makes the operator comparatively troublesome when the dismouting, makes the relatively poor problem of its regulation nature.

Aiming at the problems, the utility model aims to improve the practicability, the measuring precision and the adjustability of the digital ground resistance tester. Therefore, a digital ground resistance tester is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a digital ground resistance tester has improved digital ground resistance tester's practicality, measurement accuracy and adjustability, has solved the problem of proposing among the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a digital ground resistance tester comprises a resistance tester body and a ground part, wherein the ground part is installed on one side of the resistance tester body, the resistance tester body comprises a shell, an LCD (liquid crystal display) screen, a battery charging port, a USB (universal serial bus) interface, a test line interface area, a key area and monitoring software, the LCD screen is arranged on the upper side surface of the shell, the battery charging port is arranged on one side of the LCD screen, the USB interface is arranged on the lower side of the battery charging port, the test line interface area is arranged on the other side of the LCD screen, the key area is installed on the lower side of the LCD screen, and the monitoring software is installed in an inner cavity of the shell;

the grounding piece comprises a simple test line and a grounding rod, the simple test line is movably connected with a test line interface area, and the grounding rod is installed at one end of the simple test line.

The testing line interface area comprises an earth electrode interface, a voltage electrode interface and a current electrode interface, the earth electrode interface is arranged on the upper side surface of the testing line interface area, the voltage electrode interface is arranged on the lower side of the earth electrode interface, and the current electrode interface is arranged on the lower side of the voltage electrode interface.

The earthing pole interface includes fixed block, slot, constant head tank and inserted block, and the fixed block is installed to the upside of earthing pole interface, and the slot has been seted up on the upside surface of fixed block, and the constant head tank has been seted up to the front side surface of fixed block, and the inserted block runs through the fixed block through the slot.

Furthermore, the positioning groove comprises a clamping plate and a limiting groove, and the clamping plate penetrates through the positioning groove; the upper end surface of cardboard has seted up the spacing groove, and the inserted block passes through slot and spacing groove through connection.

Furthermore, the button area includes keyboard module and function gear knob, and the surface one side of button area is installed keyboard module, and the function gear knob is installed to one side of keyboard module.

Further, the monitoring software comprises a power supply control module, an A/D conversion module, a single chip microcomputer, a storage module and an alarm module, the power supply control module is installed in the inner cavity of the shell and on the lower side of the key area, the A/D conversion module is installed on the upper side of the power supply control module, the single chip microcomputer is installed on one side of the A/D conversion module, the storage module is installed on one side of the single chip microcomputer and on the upper side of the A/D conversion module, and the alarm module is installed on the upper side of the storage module.

Further, simple and easy test wire includes test wire short connector and safe crocodile presss from both sides, and test wire short connector is installed with the inboard in test wire interface district to the one end of simple and easy test wire, and safe crocodile presss from both sides is installed to the other end of simple and easy test wire.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a pair of digital ground resistance tester, ground resistance tester specially for the site survey ground resistance and carefully made, super large LCD display screen white screen is shaded, the stick figure is instructed, surveyability, realizes storing and historical query function through monitoring software, makes its practicality higher.

2. The utility model provides a pair of digital ground resistance tester, the fixed block of installation can be fixed it after simple and easy test wire is connected with test wire interface district, avoids because of the error that simple and easy test wire does not insert test wire interface district or contact failure arouse completely, and is more accurate to on-the-spot low value ground resistance measurement, makes its measurement accuracy higher.

3. The utility model provides a pair of digital ground resistance tester, after the test wire short-circuit connection, personnel insert the inboard of constant head tank with the cardboard, make it can chucking test wire short-circuit connection, insert back spacing groove and slot to it, personnel can insert spacing fixed to it in the hole of spacing groove and slot through the inserted block, make it be convenient for fix, and easy dismounting personnel of being convenient for adjust the use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of the resistance tester body of the present invention;

FIG. 3 is an exploded view of the fixing block of the present invention;

fig. 4 is a flow chart of the resistance tester storage and history inquiry of the present invention.

In the figure: 1. a resistance tester body; 11. a housing; 12. an LCD display screen; 13. a battery charging port; 14. a USB interface; 15. a test line interface region; 151. a ground electrode interface; 1511. a fixed block; 1512. A slot; 1513. positioning a groove; 15131. clamping a plate; 15132. a limiting groove; 1514. inserting a block; 152. A voltage pole interface; 153. a current pole interface; 16. a key area; 161. a keyboard module; 162. a functional gear knob; 17. monitoring software; 171. a power supply control module; 172. an A/D conversion module; 173. a single chip microcomputer; 174. a storage module; 175. an alarm module; 2. a ground member; 21. a simple test line; 211. testing the short joint of the wire; 212. a safety crocodile clip; 22. and a ground rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-3, a digital ground resistance tester comprises a resistance tester body 1 and a ground piece 2, the ground piece 2 is installed on one side of the resistance tester body 1, the resistance tester body 1 comprises a housing 11, an LCD display 12, a battery charging port 13, a USB interface 14, a testing interface area 15, a key area 16 and monitoring software 17, the LCD display 12 is installed on the upper surface of the housing 11, the battery charging port 13 is installed on one side of the LCD display 12, the USB interface 14 is installed on the lower side of the battery charging port 13, the testing interface area 15 is installed on the other side of the LCD display 12, the key area 16 is installed on the lower side of the LCD display 12, the monitoring software 17 is installed in the inner cavity of the housing 11, the ground resistance tester is specially designed and manufactured for measuring ground resistance on site, the LCD display 12 is backlit with a white screen and is indicated by a bar graph, at a glance, the simple test line 21 is flexibly connected with the test line interface area 15, the ground rod 22 is installed at one end of the simple test line 21, the test line interface area 15 comprises a ground electrode interface 151, a voltage electrode interface 152 and a current electrode interface 153, the upper surface of the test line interface area 15 is provided with the ground electrode interface 151, the lower side of the ground electrode interface 151 is provided with the voltage electrode interface 152, the lower side of the voltage electrode interface 152 is provided with the current electrode interface 153, the ground electrode interface 151 comprises a fixed block 1511, a slot 1512, a positioning groove 1513 and an insertion block 1514, the upper side of the ground electrode interface 151 is provided with the fixed block 1511, the fixed block 1511 can fix the simple test line 21 after being connected with the test line interface area 15, and errors caused by incomplete insertion of the simple test line 21 into the test line interface area 15 or poor contact can be avoided, the measurement of the on-site low-value ground resistance is more accurate, so that the measurement accuracy is higher, the upper side surface of the fixed block 1511 is provided with a slot 1512, the front side surface of the fixed block 1511 is provided with a positioning groove 1513, the insertion block 1514 penetrates through the fixed block 1511 through the slot 1512, the positioning groove 1513 comprises a clamping plate 15131 and a limiting groove 15132, and the clamping plate 15131 penetrates through the positioning groove 1513; the upper end surface of the clamping plate 15131 is provided with a limiting groove 15132, the insertion block 1514 is in through connection with the limiting groove 15132 through the slot 1512, after the test wire short joint 211 is connected, a person inserts the clamping plate 15131 into the inner side of the positioning groove 1513 so that the test wire short joint 211 can be clamped, the insertion block 15132 is inserted into the rear limiting groove 15132 and the slot 1512 to limit and fix the test wire short joint through the insertion block 1514, the test wire short joint is convenient to fix and convenient to disassemble and assemble, the key area 16 comprises a keyboard module 161 and a function gear knob 162, one side of the surface of the key area 16 is provided with the keyboard module 161, one side of the keyboard module 161 is provided with the function gear knob 162, the monitoring software 17 comprises a power control module 171, an A/D conversion module 172, a single chip microcomputer 173, a storage module 174 and an alarm module 175, the power control module 171 is arranged at the lower side of the inner cavity of the shell 11 and the key area 16, A/D conversion module 172 is installed to power control module 171's upside, singlechip 173 is installed to one side of AD conversion module 172, storage module 174 is installed with the upside of AD conversion module 172 to one side of singlechip 173, alarm module 175 is installed to storage module 174's upside, simple and easy test wire 21 includes test wire short connector 211 and safe alligator clip 212, test wire short connector 211 is installed with the inboard of test wire interface district 15 to the one end of simple and easy test wire 21, safe alligator clip 212 is installed to the other end of simple and easy test wire 21.

Referring to fig. 4, a digital ground resistance tester, when a person detects a required value, the value can be input to the inner side of the ground resistance tester through a keyboard module 161, the input value can enter a single chip microcomputer 173 through a power control module 171 and an a/D conversion module 172, the single chip microcomputer 173 can flow the input value into a storage module 174 for storage, when the person needs to inquire, the parameter when the person needs to inquire and store is input, the value can be displayed through an LCD display screen 12, when the person cannot inquire the value or the inside is full, an alarm module 175 can send an alarm to remind the person, and the person can conveniently store and inquire the value.

In summary, the following steps: the utility model provides a digital ground resistance tester, including resistance tester body 1 and ground connection piece 2, ground resistance tester specially designs and makes meticulously for the site measurement ground resistance, super large LCD display screen 12 white screen is shaded in a poor light, stick figure instruction, it is clear at a glance, realize storage and historical query function through monitoring software 17, make its practicality higher, the fixed block 1511 of installation can fix it after simple and easy test wire 21 is connected with test wire interface area 15, avoid because simple and easy test wire 21 inserts test wire interface area 15 or the error that contact failure causes completely, to the measurement of the low value ground resistance in the scene more accurate, make its measurement accuracy higher, after test wire short connector 211 connects, personnel insert cardboard 15131 the inboard of constant head tank 1513, make it can the chucking test wire short connector 211, insert back limit slot 15132 and slot 1512 to it, personnel can insert through insertion piece 1514 and carry out spacing fixed to it in the hole of spacing groove 15132 and slot 1512, make it be convenient for fix, and easy dismounting is convenient for personnel and adjusts the use.

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 digital ground resistance tester, includes resistance tester body (1) and ground connection spare (2), and one side at resistance tester body (1) is installed in ground connection spare (2), its characterized in that: the resistance tester body (1) comprises a shell (11), an LCD (liquid crystal display) screen (12), a battery charging port (13), a USB (universal serial bus) interface (14), a test line interface area (15), a key area (16) and monitoring software (17), wherein the LCD screen (12) is arranged on the upper side surface of the shell (11), the battery charging port (13) is arranged on one side of the LCD screen (12), the USB interface (14) is arranged on the lower side of the battery charging port (13), the test line interface area (15) is arranged on the other side of the LCD screen (12), the key area (16) is arranged on the lower side of the LCD screen (12), and the monitoring software (17) is arranged in an inner cavity of the shell (11);

the grounding piece (2) comprises a simple test line (21) and a grounding rod (22), the simple test line (21) is movably connected with the test line interface area (15), and one end of the simple test line (21) is provided with the grounding rod (22);

the testing line interface area (15) comprises a grounding electrode interface (151), a voltage electrode interface (152) and a current electrode interface (153), the grounding electrode interface (151) is arranged on the surface of the upper side of the testing line interface area (15), the voltage electrode interface (152) is arranged on the lower side of the grounding electrode interface (151), and the current electrode interface (153) is arranged on the lower side of the voltage electrode interface (152);

the grounding electrode interface (151) comprises a fixed block (1511), a slot (1512), a positioning groove (1513) and an insertion block (1514), the fixed block (1511) is installed on the upper side of the grounding electrode interface (151), the slot (1512) is formed in the upper side surface of the fixed block (1511), the positioning groove (1513) is formed in the front side surface of the fixed block (1511), and the insertion block (1514) penetrates through the fixed block (1511) through the slot (1512).

2. A digital ground resistance tester as claimed in claim 1, wherein: the positioning groove (1513) comprises a clamping plate (15131) and a limiting groove (15132), and the clamping plate (15131) penetrates through the positioning groove (1513); the upper end surface of the clamping plate (15131) is provided with a limiting groove (15132), and the insertion block (1514) is in through connection with the limiting groove (15132) through the slot (1512).

3. A digital ground resistance tester as claimed in claim 1, wherein: the button area (16) comprises a keyboard module (161) and a function gear knob (162), the keyboard module (161) is installed on one side of the surface of the button area (16), and the function gear knob (162) is installed on one side of the keyboard module (161).

4. A digital ground resistance tester as claimed in claim 1, wherein: monitoring software (17) include power control module (171), AD conversion module (172), singlechip (173), storage module (174) and alarm module (175), the lower side in the inner chamber of shell (11) and button district (16) is installed in power control module (171), AD conversion module (172) are installed to the upside of power control module (171), singlechip (173) are installed to one side of AD conversion module (172), storage module (174) are installed to one side of singlechip (173) and the upside of AD conversion module (172), alarm module (175) are installed to the upside of storage module (174).

5. A digital ground resistance tester as claimed in claim 1, wherein: simple and easy test wire (21) are including test wire short connector (211) and safe alligator clip (212), and test wire short connector (211) are installed to the one end of simple and easy test wire (21) and the inboard of test wire interface district (15), and safe alligator clip (212) are installed to the other end of simple and easy test wire (21).