CN215263726U

CN215263726U - Device is examined to ground resistance tester point

Info

Publication number: CN215263726U
Application number: CN202120967885.8U
Authority: CN
Inventors: 黄海能; 王吴玲
Original assignee: Anhui Zhonglian Power Construction Co ltd
Current assignee: Anhui Zhonglian Power Construction Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-21
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a device is examined to ground resistance tester point, including device case and the support frame of setting in the device bottom of the case portion, the utility model relates to a ground resistance detects technical field. This ground resistance tester point inspection device, closed knife switch, zero the pointer of ampere meter, disconnection knife switch, take out the conducting rod, insert ground probe in the detection ring, closed knife switch, observe the ampere meter pointer, judge whether ground probe's resistance is normal, thereby judge whether there is impurity on ground probe surface, if ground probe's resistance is abnormal, insert clean water tank with ground probe, the surface of clean ground probe of actuating motor drive cleaning rod, then take out clean probe and wipe futilely, carry out resistance test once more, if resistance is abnormal probably, long-time use makes ground probe damage, thereby can in time change, and then make ground resistance tester can normal use.

Description

Device is examined to ground resistance tester point

Technical Field

The utility model relates to an earth resistance detects technical field, specifically is a device is examined to earth resistance tester point.

Background

The earth resistance tester, measure the earth resistance and instrument of the soil resistivity of the earthing device of the electrical equipment, the earth resistance of the grounding body is the soil resistance from grounding body to zero potential, generally adopt the compensation method to measure, the earth resistance tester based on compensation principle is called "potentiometer type earth resistance tester", the error range is generally + -5%, in addition, there is earth resistance tester of the current ratio meter type, the error range is generally + -10%, the earth resistance tester belongs to the safety regulation tester, use extensively in the enterprise production activity, the normal function performance, reliability performance and accuracy degree of the present earth resistance tester, people often rely on the measurement calibration and daily spot check work to guarantee.

Before using the ground resistance tester, tools and all instrument accessories used during measurement need to be prepared completely, instruments and ground probes, especially the ground probes, need to be cleaned up of dirt and rust stains affecting the conductivity of the surfaces of the instruments and the ground probes, but some stains affecting the ground probes are difficult to observe and judge, and after long-time use, naked eyes cannot judge whether the resistance of the probes is qualified, so that the use of the ground resistance tester is affected.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a device is examined to ground resistance tester point has solved the unable qualified problem of resistance that judges the probe of naked eye.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a point inspection device of a ground resistance tester comprises a device box and a support frame arranged at the bottom of the device box, wherein the back of an inner cavity of the device box is fixedly connected with a direct-current storage battery through a fixing frame, the back of the inner cavity of the device box is fixedly connected with a knife switch above the direct-current storage battery, the back of the inner cavity of the device box is fixedly connected with an ammeter above the knife switch, the left side and the right side of the top of the device box are both fixedly connected with a detection ring through the fixing frame, the front of the detection ring is fixedly connected with a fixture block, the inner surface of the fixture block is provided with a conductive rod, the left side and the right side of the device box are both fixedly connected with a cleaning water tank, the bottom of the cleaning water tank is rotatably connected with a linkage rod through a rotating frame, the top end of the linkage rod penetrates through the cleaning water tank and is rotatably connected with the cleaning rod, and the bottom of the device box is fixedly connected with a motor, one end of the output shaft of the motor is in transmission connection with the bottom end of the linkage rod through a conveyor belt.

Preferably, the inner surface of the detection ring is fixedly connected with four chucking springs, and the four chucking springs are uniformly distributed on the inner surface of the detection ring.

Preferably, one end of the clamping spring is fixedly connected with an arc-shaped block.

Preferably, a threaded rod penetrates through a corner at the top of the cleaning water tank and is rotatably connected with the corner, and the bottom end of the threaded rod is rotatably connected with the bottom of the inner cavity of the cleaning water tank through a rotating block.

Preferably, the outer surface of the threaded rod is in threaded connection with a lifting plate matched with the cleaning water tank, a through hole is formed in the middle of the lifting plate, and the inner surface of the through hole is in close contact with the outer surface of the cleaning rod.

Preferably, the top of the cleaning water tank is provided with an insertion hole.

Advantageous effects

The utility model provides a device is examined to ground resistance tester point. Compared with the prior art, the method has the following beneficial effects:

(1) the earth resistance tester point inspection device is matched with the arrangement of a device box, a support frame, a direct current storage battery, a knife switch, an ammeter, a detection ring, a clamping block, a conductive rod, a cleaning water tank, a linkage rod, a cleaning rod and a motor, the knife switch is closed, a pointer of the ammeter is zeroed, the knife switch is disconnected, the conductive rod is taken out, then an earth probe is inserted into the detection ring, the knife switch is closed, the pointer of the ammeter is observed, whether the resistance of the earth probe is normal or not is judged, whether dirt impurities which are not cleaned exist on the surface of the earth probe or not can be accurately judged, if the resistance of the earth probe is abnormal, the earth probe is inserted into the cleaning water tank, the motor is started to drive the linkage rod to rotate the cleaning rod, so that the surface of the earth probe is cleaned, the cleaning probe is taken out and wiped, resistance testing is carried out again, if the resistance is abnormal, the grounding probe can be damaged by long-time use, so that the grounding probe can be replaced in time, and the grounding resistance tester can be normally used.

(2) This ground resistance tester point examines device, there is the lifter plate with clean water tank looks adaptation through the surface threaded connection at the threaded rod, the through-hole has been seted up at the middle part of lifter plate, the internal surface of through-hole and the surface in close contact with of clean pole, it rises to rotate the threaded rod and drive the lifter plate, the lifter plate rises the internal surface extrusion clean pole that makes the through-hole, thereby make the rotation range of clean pole reduce, and then make the ground probe that the clean pole can clean not equidimension specification, and then increased the suitability of device.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the structural connection of the detecting ring, the clamping spring and the arc-shaped block of the present invention;

fig. 4 is the structure connection schematic diagram of the threaded rod, the lifting plate and the through hole of the present invention.

In the figure: 1. a device case; 2. a support frame; 3. a direct current storage battery; 4. a knife switch; 5. an ammeter; 6. a detection ring; 7. a clamping block; 8. a conductive rod; 9. cleaning the water tank; 10. a linkage rod; 11. a cleaning rod; 12. an electric motor; 13. a chucking spring; 14. an arc-shaped block; 15. a threaded rod; 16. a lifting plate; 17. a through hole; 18. and inserting the hole.

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. 1-4, the present invention provides a technical solution: a point inspection device of a ground resistance tester comprises a device box 1 and a support frame 2 arranged at the bottom of the device box 1, wherein the back of the inner cavity of the device box 1 is fixedly connected with a direct current storage battery 3 through a fixing frame, the back of the inner cavity of the device box 1 is fixedly connected with a knife switch 4 above the direct current storage battery 3, the back of the inner cavity of the device box 1 is fixedly connected with an ammeter 5 above the knife switch 4, the left side and the right side of the top of the device box 1 are fixedly connected with a detection ring 6 through the fixing frame, the direct current storage battery 3, the knife switch 4, the ammeter 5 and the detection ring 6 are electrically connected through a lead, the front of the detection ring 6 is fixedly connected with a clamping block 7, the inner surface of the clamping block 7 is provided with a conductive rod 8, the left side and the right side of the device box 1 are fixedly connected with a cleaning water tank 9, the bottom of the cleaning water tank 9 is rotatably connected with a linkage rod 10 through a rotating frame, the top end of a linkage rod 10 penetrates through a cleaning water tank 9 and is rotatably connected with a cleaning rod 11, bristles are fixedly connected to the outer surface of the cleaning rod 11, a motor 12 is fixedly connected to the bottom of a device box 1, the motor 12 is electrically connected with an external power supply and is controlled by a control switch, one end of an output shaft of the motor 12 is in transmission connection with the bottom end of the linkage rod 10 through a conveyor belt, a knife switch 4 is closed, a pointer of an ammeter 5 is zeroed, the knife switch 4 is disconnected, a conductive rod 8 is taken out, then an earthing probe is inserted into a detection ring 6, the knife switch 4 is closed, the pointer of the ammeter 5 is observed, whether the resistance of the earthing probe is normal or not is judged, and therefore whether dirt impurities which are not cleaned exist on the surface of the earthing probe or not can be accurately judged, if the resistance of the earthing probe is abnormal, the earthing probe is inserted into the cleaning water tank 9, the motor 12 is started to drive the linkage rod 10 to rotate the cleaning rod, therefore, the surface of the grounding probe is cleaned, then the cleaning probe is taken out and wiped dry, resistance testing is carried out again, if the resistance is abnormal, the grounding probe can be damaged by long-time use, and therefore the grounding probe can be replaced in time, and the grounding resistance tester can be used normally.

Further, the inner surface of the detection ring 6 is fixedly connected with four chucking springs 13, and the number of the chucking springs 13 is four and is uniformly distributed on the inner surface of the detection ring 6.

Further, one end of the chucking spring 13 is fixedly connected with an arc-shaped block 14.

Furthermore, the corner at the top of the clean water tank 9 is penetrated and rotatably connected with a threaded rod 15, and the bottom end of the threaded rod 15 is rotatably connected with the bottom of the inner cavity of the clean water tank 9 through a rotating block.

Furthermore, the outer surface of the threaded rod 15 is in threaded connection with a lifting plate 16 matched with the cleaning water tank 9, a through hole 17 is formed in the middle of the lifting plate 16, and the inner surface of the through hole 17 is in close contact with the outer surface of the cleaning rod 11.

Further, the top of the cleaning water tank 9 is provided with an insertion hole 18.

And those not described in detail in this specification are well within the skill of those in the art.

When in use, the knife switch 4 is closed, the pointer of the ammeter 5 is zeroed, the knife switch 4 is disconnected, the conducting rod 8 is taken out, then the grounding probe is inserted into the detection ring 6, the grounding probe extrudes the arc-shaped block 14 to enable the clamping spring 13 to contract, then closing the knife switch 4, observing the pointer of the ammeter 5, judging whether the resistance of the grounding probe is normal, if the resistance of the ground probe is abnormal, the ground probe is inserted into the cleaning water tank 9 from the insertion hole 18, the screw rod 15 is rotated to drive the lifting plate 16 to ascend, the lifting plate 16 ascends to press the cleaning rod 11 by the inner surface of the through hole 17, thereby leading the outer surface of the cleaning rod 11 to be tightly contacted with the outer surface of the grounding probe, starting the motor 12 to drive the conveyor belt to lead the linkage rod 10 to lead the cleaning rod 11 to rotate, the surface of the ground probe is cleaned and then the cleaned probe is removed and wiped dry and a resistance test is performed again.

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 device is examined to ground resistance tester point, includes device case (1) and sets up support frame (2) in device case (1) bottom, its characterized in that: the device comprises a device box (1), a direct-current storage battery (3) is fixedly connected to the back of an inner cavity of the device box (1) through a fixing frame, a knife switch (4) is fixedly connected to the back of the inner cavity of the device box (1) and is positioned above the direct-current storage battery (3), an ammeter (5) is fixedly connected to the back of the inner cavity of the device box (1) and is positioned above the knife switch (4), detection rings (6) are fixedly connected to the left side and the right side of the top of the device box (1) through the fixing frame, clamping blocks (7) are fixedly connected to the front sides of the detection rings (6), conductive rods (8) are arranged on the inner surfaces of the clamping blocks (7), cleaning water tanks (9) are fixedly connected to the left side and the right side of the device box (1), linkage rods (10) are rotatably connected to the bottoms of the cleaning water tanks (9) through rotating frames, cleaning water tanks (9) are rotatably connected to the top ends of the linkage rods (10), the bottom of the device box (1) is fixedly connected with a motor (12), and one end of an output shaft of the motor (12) is in transmission connection with the bottom end of the linkage rod (10) through a conveyor belt.

2. The earth resistance tester point inspection device of claim 1, characterized in that: the inner surface of the detection ring (6) is fixedly connected with four chucking springs (13), and the number of the chucking springs (13) is four and is uniformly distributed on the inner surface of the detection ring (6).

3. The earth resistance tester point inspection device of claim 2, characterized in that: one end of the clamping spring (13) is fixedly connected with an arc-shaped block (14).

4. The earth resistance tester point inspection device of claim 1, characterized in that: the corner at clean water tank (9) top is run through and is rotated and be connected with threaded rod (15), the bottom of threaded rod (15) is passed through the turning block and is connected with the bottom rotation of clean water tank (9) inner chamber.

5. The earth resistance tester point inspection device of claim 4, characterized in that: the outer surface threaded connection of threaded rod (15) has lifter plate (16) with clean water tank (9) looks adaptation, through-hole (17) have been seted up in the middle part of lifter plate (16), the internal surface of through-hole (17) and the surface in close contact with of clean pole (11).

6. The earth resistance tester point inspection device of claim 1, characterized in that: the top of the cleaning water tank (9) is provided with an insertion hole (18).