CN215116519U

CN215116519U - Multi-functional large-scale ground net ground resistance tester

Info

Publication number: CN215116519U
Application number: CN202121522984.1U
Authority: CN
Inventors: 毕青春; 毕健
Original assignee: YANGZHOU HUADIAN ELECTRICAL CO Ltd
Current assignee: YANGZHOU HUADIAN ELECTRICAL CO Ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-10
Anticipated expiration: 2031-07-06

Abstract

The utility model discloses a multifunctional large-scale ground screen ground resistance tester, which comprises a test box internally provided with a storage bin and a test device movably arranged in the storage bin, wherein the test device comprises a circuit board with a plurality of fixing devices detachably arranged on the upper end surface in an equidistance manner and a rectangular lug arranged between two sides of the circuit board, the fixing devices comprise a bearing box with a placing groove arranged on the top and two clamping blocks symmetrically and movably arranged in the placing groove, the two clamping blocks are fixedly provided with a second spring on the opposite sides, two opposite vertical inner walls of the storage bin are both provided with a groove between two sides, a plurality of round shafts passing through the rectangular lug are fixedly arranged in the groove in an equidistance manner, a third spring is sleeved on the outer edge surface of the round shaft, and the multifunctional large-scale ground screen ground resistance tester has reasonable structure and is convenient for fixedly detecting resistance, and can avoid the circuit board collision to damage when carrying the removal, the practicality is strong.

Description

Multi-functional large-scale ground net ground resistance tester

Technical Field

The utility model belongs to the technical field of resistance tester, concretely relates to multi-functional large-scale earth mat 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. The device is suitable for measuring the grounding resistance of various devices and the resistance value of a low-resistance conductor in departments of electric power, post and telecommunications, railways, communication, mines and the like; the meter can also measure the soil resistivity and the ground voltage.

At present when using resistance tester, need artifical support resistance, make its switch-on circuit test, can artifical support though can realize the comparatively swift detection to resistance, the workman is tired easily under the work for a long time, lead to resistance can't realize better intercommunication with the circuit, leak hunting appears easily, the condition of false retrieval, and current tester is carrying the removal in-process, inside circuit board exposes outside, easily lead to damaging with the casing collision of tester, and then lead to the circuit to break down, influence the degree of accuracy of resistance test.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multi-functional large-scale earth mat ground resistance tester to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a multifunctional large-scale ground screen ground resistance tester comprises a test box internally provided with a storage bin and a test device movably arranged in the storage bin;

the testing device comprises a circuit board with a plurality of fixing devices arranged on the upper end face in an equidistant and detachable mode and rectangular bumps constructed on two sides of the circuit board in the middle, each fixing device comprises a bearing box with a placing groove formed in the top and two clamping blocks symmetrically and movably arranged in the placing groove, and second springs are fixedly arranged on the opposite faces of the two clamping blocks;

put two relative vertical inner walls in thing storehouse and all seted up the recess between two parties, equidistance fixed mounting has many round axles that pass the rectangle lug in the recess, the cover is equipped with the third spring on the outer fringe face of round axle.

Preferably, the bottom of the placing groove is provided with a matching groove for fixedly mounting the sliding column in the middle, the outer edge surface of the sliding column is symmetrically and slidably provided with two sliding blocks, and the upper end surfaces of the two sliding blocks are fixedly connected with the bottoms of the two clamping blocks respectively.

Preferably, the bottom of the two sides of the bearing box is provided with a fixing plate, the two sides of the bearing box are provided with wiring pipes used for connecting the detection circuit inside the circuit board, and the fixing part used for detachably connecting the fixing device and the circuit board is arranged in the fixing plate.

Preferably, the below symmetry activity of circuit board is provided with two holding down plates, and the equal equidistance fixed mounting in position of circuit board terminal surface towards two holding down plates has the compression leg that many bottoms passed the holding down plate, the compression leg passes and can dismantle on the one end outer fringe face of holding down plate and be provided with the spacing ring, and the cover is equipped with the first spring of butt holding down plate and circuit board on the outer fringe face of compression leg.

Preferably, the upper end face of the test box is hinged to a box cover through a hinge, and a protection plate is bonded to one face, facing the test box, of the box cover.

Preferably, a groove body which is communicated with the storage bin and is used for movably arranging the storage box is formed in one side of the test box, arc-shaped positioning blocks are constructed on two sides of the storage box, and magnetic plates are arranged on the arc-shaped surfaces of the positioning blocks.

The utility model discloses a technological effect and advantage: the multifunctional large-scale ground screen ground resistance tester can push the two clamping blocks towards opposite directions due to the arrangement of the fixing device, the detected resistor is placed in the placing groove, the two clamping blocks are loosened, the two clamping blocks are abutted to two sides of the resistor under the action of the elastic force of the second spring, the resistor is fixed, the resistor is connected with a detection circuit in the circuit board through the wiring tube, manual supporting of workers is not needed for detection, and the conditions of missing detection and error detection are avoided;

benefit from the setting of rectangle lug, recess, circle axle and third spring, when carrying the device and remove, when encountering with and rocking, the circuit board removes, and then makes the third spring receive the extrusion and produce deformation, and then cushions the circuit board, avoids the collision to lead to the damage of the inside detection circuitry of circuit board.

Drawings

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

FIG. 2 is a schematic structural diagram of the testing device of the present invention;

fig. 3 is a schematic structural view of the fixing device of the present invention;

fig. 4 is a schematic view of the internal structure of the fixing device of the present invention;

fig. 5 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

In the figure: 1. a test cartridge; 2. a storage bin; 3. a box cover; 4. a protection plate; 5. a storage box; 6. positioning blocks; 7. a magnetic plate; 8. a testing device; 801. a circuit board; 802. a rectangular bump; 803. a lower pressing plate; 804. pressing the column; 805. a first spring; 9. a fixing device; 901. a carrying box; 902. a placement groove; 903. a fixing plate; 904. a wire connecting pipe; 905. a clamping block; 906. a second spring; 907. a traveler; 908. a slider; 10. a groove; 11. a circular shaft; 12. and a third spring.

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.

In order to facilitate the fixed detection of the resistor, as shown in fig. 1-4, the multifunctional large-scale ground net ground resistance tester comprises a test box 1 with an internal storage bin 2 and a test device 8 movably arranged in the storage bin 2, wherein the test device 8 comprises a circuit board 801 with a plurality of fixing devices 9 detachably mounted on the upper end surface at equal intervals and a rectangular bump 802 centrally constructed on two sides of the circuit board 801, each fixing device 9 comprises a bearing box 901 with a top provided with a placement slot 902 and two clamping blocks 905 symmetrically and movably arranged in the placement slot 902, a second spring 906 is fixedly arranged on the opposite side of each clamping block 905, thanks to the arrangement of the fixing devices 9, the two clamping blocks 905 can be pushed towards opposite directions, the detected resistor is placed in the placement slot 902, the two clamping blocks 905 are loosened, two sides of the resistor are abutted 605 under the elastic force of the second spring 906, further, the resistor is fixed, the resistor is connected with a detection circuit in the circuit board 801 through the wiring tube 904, manual support of workers is not needed for detection, missing detection and error detection are avoided, a matching groove for fixedly mounting the sliding column 907 is formed in the center of the bottom of the placing groove 902, two sliding blocks 908 are symmetrically installed on the outer edge surface of the sliding column 907 in a sliding matching mode, the upper end surfaces of the two sliding blocks 908 are fixedly connected with the bottoms of the two clamping blocks 905 respectively (in specific implementation, when the clamping blocks 905 move, the sliding blocks 908 are driven to slide on the outer edge surface of the sliding column 907, movement of the clamping blocks 905 can be guided through matching of the sliding blocks 908 and the sliding columns 907), fixing plates 903 are formed at the bottoms of the two sides of the bearing box 901, wiring tubes 904 for connecting the detection circuit in the circuit board 801 are arranged on the two sides of the bearing box 901, fixing pieces for detachably connecting the fixing device 9 and the circuit board 801 are arranged in the fixing plates 903 (in specific implementation, the mounting can be selected for use but not limited to and select for use the bolt), 1 up end of test box articulates through the hinge has lid 3, and 3 one sides bonds towards test box 1 of lid is provided with guard plate 4 (during the concrete implementation, guard plate 4 can be made by flexible material, like plastic board etc.).

In order to avoid the collision damage of the circuit board 801 during carrying and moving, as shown in fig. 1, fig. 2 and fig. 5, a groove 10 is formed in the center of two opposite vertical inner walls of the storage bin 2, a plurality of circular shafts 11 penetrating through rectangular bumps 802 are fixedly installed in the groove 10 at equal intervals, a third spring 12 is sleeved on the outer edge surface of each circular shaft 11, by virtue of the arrangement of the rectangular bumps 802, the groove 10, the circular shafts 11 and the third spring 12, when the device is carried and moved and is shaken, the circuit board 801 moves, so that the third spring 12 is extruded to deform, further the circuit board 801 is buffered, the damage of a detection circuit in the circuit board 801 caused by collision is avoided, two lower pressing plates 803 are symmetrically and movably arranged below the circuit board 801, and a plurality of pressing columns 804 with the bottom ends penetrating through the lower pressing plates 803 are fixedly installed at equal intervals on the positions of the lower end surfaces of the circuit board 801 facing the two lower pressing plates 803, a limiting ring is detachably arranged on the outer edge surface of one end of the pressing column 804 penetrating through the lower pressing plate 803, a first spring 805 which is abutted against the lower pressing plate 803 and the circuit board 801 is sleeved on the outer edge surface of the pressing column 804 (in specific implementation, when the circuit board 801 shakes up and down, the lower pressing plate 803 is abutted against the accommodating box 5, the circuit board 801 continuously moves down to cause the first spring 805 to deform under pressure, and further buffer can be provided for the circuit board 801), one side of the test box 1 is provided with a groove body which is communicated with the storage box 2 and is used for movably arranging the accommodating box 5, two sides of the accommodating box 5 are respectively provided with an arc-shaped positioning block 6, the arc-shaped surface of the positioning block 6 is provided with a magnetic plate 7 (in specific implementation, a magnetic sheet which is arranged by being magnetically matched with the magnetic plate 7 is arranged inside the groove body),

the working principle is as follows: when the multifunctional large-scale ground screen ground resistance tester is used, the two clamping blocks 905 can be pushed towards opposite directions, the detected resistor is placed in the placing groove 902, the two clamping blocks 905 are loosened, the two 605 are abutted against the two sides of the resistor under the action of the elastic force of the second spring 906, the resistor is fixed, the resistor is communicated with a detection circuit in the circuit board 801 through the wiring pipe 904, the resistor is detected, when the multifunctional large-scale ground screen ground resistance tester moves with shaking, the circuit board 801 moves, the third spring 12 is extruded to deform, the circuit board 801 is buffered, the damage of the detection circuit in the circuit board 801 caused by collision is avoided, the multifunctional large-scale ground screen ground resistance tester has a reasonable structure, the resistor is convenient to be fixedly detected, and the circuit board can be prevented from being collided and damaged when the multifunctional large-scale ground screen ground resistance tester is carried and moved, the practicability is strong.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A multifunctional large-scale ground screen ground resistance tester comprises a test box (1) internally provided with a storage bin (2) and a test device (8) movably arranged in the storage bin (2);

the method is characterized in that: the testing device (8) comprises a circuit board (801) with a plurality of fixing devices (9) arranged on the upper end face in an equidistant and detachable mode and rectangular convex blocks (802) which are centrally constructed on two sides of the circuit board (801), each fixing device (9) comprises a bearing box (901) with a placing groove (902) formed in the top and two clamping blocks (905) symmetrically and movably arranged in the placing groove (902), and second springs (906) are fixedly arranged on the opposite sides of the two clamping blocks (905);

put two relative vertical inner walls in thing storehouse (2) and all offered recess (10) between two parties, equidistance fixed mounting has many circle axle (11) of passing rectangle lug (802) in recess (10), the cover is equipped with third spring (12) on the outer fringe face of circle axle (11).

2. The multifunctional large-scale grounding grid grounding resistance tester as claimed in claim 1, wherein: the bottom of the placing groove (902) is provided with a matching groove for fixedly mounting a sliding column (907) in the middle, two sliding blocks (908) are symmetrically installed on the outer edge surface of the sliding column (907) in a sliding matching mode, and the upper end surfaces of the two sliding blocks (908) are fixedly connected with the bottoms of the two clamping blocks (905) respectively.

3. The multifunctional large-scale grounding grid grounding resistance tester as claimed in claim 2, wherein: fixing plates (903) are respectively constructed at the bottoms of the two sides of the bearing box (901), wiring pipes (904) used for connecting detection circuits inside the circuit board (801) are respectively arranged on the two sides of the bearing box (901), and fixing pieces used for detachably connecting the fixing device (9) and the circuit board (801) are arranged in the fixing plates (903).

4. The multifunctional large-scale grounding grid grounding resistance tester as claimed in claim 1, wherein: the below symmetry activity of circuit board (801) is provided with two holding down plates (803), and the equal equidistance fixed mounting in position of circuit board (801) lower terminal surface towards two holding down plates (803) has many bottoms to pass compression leg (804) of holding down plate (803), compression leg (804) are passed and are dismantled on the one end outer fringe face of holding down plate (803) and be provided with the spacing ring, and the cover is equipped with first spring (805) of butt holding down plate (803) and circuit board (801) on the outer fringe face of compression leg (804).

5. The multifunctional large-scale grounding grid grounding resistance tester as claimed in claim 1, wherein: the test box is characterized in that the upper end face of the test box (1) is hinged to a box cover (3) through a hinge, and a protection plate (4) is bonded to one face, facing the test box (1), of the box cover (3).

6. The multifunctional large-scale grounding grid grounding resistance tester as claimed in claim 1, wherein: the test box is characterized in that a groove body which is communicated with a storage bin (2) and is movably arranged on one side of the test box (1) is formed, a storage box (5) is movably arranged on the groove body, arc-shaped positioning blocks (6) are constructed on two sides of the storage box (5), and magnetic plates (7) are arranged on arc-shaped surfaces of the positioning blocks (6).