High altitude auxiliary device for ground resistance tester

Abstract

The utility model discloses a high-altitude auxiliary device for a ground resistance tester, comprising a base plate, both side walls of the base plate are provided with extension components, the extension components include two relatively arranged vertical plates and a rotating shaft movably arranged between the two vertical plates, the base plate is provided with a driving member for driving the two rotating shafts to synchronously rotate axially, an extension line is wound around the rotating shaft, the starting end of the extension line is a connecting end for connecting with a grounding cable of an external ground resistance tester, the end of the extension line is detachably connected with a grounding rod, and the base plate is provided with a fixing member for stably fixing the base plate on the external ground. The utility model solves the problem in the prior art that there is a lack of an auxiliary grounding device for grounding an auxiliary ground resistance measuring instrument grounding terminal so as to measure high-altitude grounding equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of ground resistance testers, in particular to a high-altitude auxiliary device for ground resistance testers. Background Art

[0002] A ground resistance meter, also called a ground resistance meter, is a ground resistance indicating instrument specially used to directly measure the ground resistance of various grounding devices. A ground resistance meter is a resistance measuring device used in power, post and telecommunications, railways, communications, mining and other departments to measure the ground resistance of various devices and the resistance value of low-resistance conductors; it can also measure soil resistivity and ground voltage. When testing the ground resistance, both sides need to be connected to the ground terminal and then tested. However, when working at height or inspecting and measuring grounding equipment at high altitude, it is impossible to find the grounding position. The prior art lacks an auxiliary grounding device for grounding the ground terminal of the auxiliary ground resistance meter so as to measure high-altitude grounding equipment. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a high-altitude auxiliary device for a ground resistance tester, in order to solve the problem in the prior art of lacking an auxiliary grounding device for grounding the grounding terminal of an auxiliary ground resistance measuring instrument so as to measure high-altitude grounding equipment.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a high-altitude auxiliary device for a ground resistance tester, including a base plate, and extension components are arranged on both side walls of the base plate, and the extension components include two relatively arranged vertical plates and a rotating shaft movably arranged between the two vertical plates. The base plate is provided with a driving member for driving the two rotating shafts to synchronously rotate axially, and an extension wire is wound around the rotating shaft. The starting end of the extension wire is a connecting end for connecting with a grounding cable of an external ground resistance tester, and the end of the extension wire is detachably connected to a grounding rod. The base plate is provided with a fixing member for stably fixing the base plate on the external ground.

[0005] The above technical solution is beneficial in that: the operator connects the connecting ends of the two extension cords to the two grounding cables of the external ground resistance tester respectively, and then the operator connects the grounding rod to the end of the extension cord and inserts the grounding rod on the external ground, and then the operator fixes the substrate through the fixing part to prevent the substrate from moving and causing the grounding rod to be separated from the ground or tilted, thereby preventing the detection result from being affected. After that, the operator can take the ground resistance tester to a high place or test the high-altitude grounding equipment. When the operator is at a high altitude, the extension cord is suspended in the air. At this time, the operator on the ground can start the driving part so that the driving part drives the two shafts to rotate axially synchronously, so that the extension cord rotates in the opposite direction of the shaft winding direction, that is, tighten the extension cord to prevent the extension cord from being too long when hanging and contacting other devices such as telephone poles on the road surface, and at the same time prevent external stress from affecting the extension cord and causing the substrate to shake or shift on the external ground, thereby preventing the grounding rod from being separated from the ground and causing the detection accuracy to be affected. In the above technology, when the extension cord needs to be pulled out, it is only necessary to start the driving part to drive the shaft to rotate in the same direction as the extension cord is wound in the shaft to release the extension cord.

[0006] The utility model is further configured as follows: counterweight blocks are provided at both ends of the base plate, the counterweight block located on the left side of the base plate is hollow and has a counterweight cavity, the counterweight block located on the right side of the base plate is hollow and has a linkage cavity, the starting ends of the two rotating shafts are matching ends for passing through their respective adjacent vertical plates to the linkage cavity, a driving motor is provided on the outer wall of the counterweight block located on the right side of the base plate, the output end of the driving motor passes through the linkage cavity and is located between the two starting ends of the rotating shafts, two transmission wheels are coaxially provided on the output end of the driving motor, matching wheels are provided on the matching ends of the two rotating shafts, the two matching wheels correspond one-to-one to the two transmission wheels, and a transmission belt is provided between the two matching wheels and their respective corresponding transmission wheels.

[0007] The benefit of adopting the above technical solution is that in the above technology, when the rotating shaft needs to rotate, the driving motor starts and drives the two transmission wheels to rotate synchronously along the axis direction of the output end, and the two transmission wheels are respectively driven by a transmission belt with their corresponding matching wheels, that is, when the transmission wheel rotates, the matching wheels are driven to rotate synchronously through the transmission belt, thereby realizing the synchronous rotation of the two rotating shafts, and then realizing the tightening and pulling out of the two extension lines.

[0008] The utility model is further configured that: the bottoms of the two counterweight blocks are both provided with a plurality of limiting cones for being inserted into the external ground.

[0009] The benefits of adopting the above technical solution are: the setting of the limit cone in the above technology is used to improve the stability of the counterweight block on special ground. For example, on soft soil or gravel roads, the limit cone is inserted into the ground to improve the stable placement of the counterweight block on the ground, and it is not easy to collapse when under stress, thereby improving the stability of the base plate, preventing the extension line from shaking due to the base plate shaking, and at the same time preventing the base plate shaking from causing the grounding rod to leave the ground and causing detection failure.

[0010] The utility model is further configured that: a plurality of counterweight plates are arranged in the counterweight cavity.

[0011] The benefits of adopting the above technical solution are: the counterweight plate in the above technology is used to balance the weight of the two counterweight blocks. Since the counterweight block on the right is equipped with a motor, its overall weight is heavier. The weight at both ends of the base plate is balanced by the counterweight block, thereby improving the stability of the base plate on the external ground.

[0012] The utility model is further configured that: a limit strip is provided at the bottom of the base plate along its length direction, and the radial cross section of the limit strip is triangular.

[0013] The benefits of adopting the above technical solution are: the setting of the limit strip in the above technology is used to improve the stability of the substrate on special ground. For example, on soft soil or gravel roads, the limit strip is inserted into the ground to improve the stable placement of the substrate on the ground, and it is not easy to collapse when under stress, thereby improving the stability of the substrate, avoiding the shaking of the substrate and causing the extension line to shake, and at the same time avoiding the shaking of the substrate and causing the grounding rod to leave the ground, resulting in detection failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional view of the utility model;

[0015] Figure 2 A three-dimensional view of the bottom perspective of the present invention;

[0016] Figure 3 This is a three-dimensional view of the matching state of the driving motor and the rotating shaft in the utility model;

[0017] Figure 4 It is a simplified cross-sectional view of the counterweight block located on the left side of the base plate in the utility model;

[0018] Figure 5 It is a simplified view of the connection state between the end of the extension line and the ground rod in the utility model. DETAILED DESCRIPTION

[0019] The utility model provides a high-altitude auxiliary device for a ground resistance tester, comprising a base plate 1, both side walls of the base plate 1 are provided with extension components, the extension components include two oppositely arranged vertical plates 11 and a rotating shaft 2 movably arranged between the two vertical plates 11, the base plate 1 is provided with a driving member for driving the two rotating shafts 2 to synchronously rotate axially, an extension line 3 is wound around the rotating shaft 2, the starting end of the extension line 3 is a connecting end 31 for connecting with a grounding cable of an external ground resistance tester, the end of the extension line 3 is detachably connected with a grounding rod 32, the base plate 1 is provided with a fixing member for stably fixing the base plate 1 on the external ground, counterweight blocks 4 are provided at both ends of the base plate 1, the counterweight block 4 on the left side of the base plate 1 is hollow with a counterweight cavity 45, the counterweight block 4 on the right side of the base plate 1 is hollow with a linkage cavity, and the two The starting end of each rotating shaft 2 is a mating end for passing through the respective adjacent vertical plates 11 to the linkage cavity. A driving motor 5 is arranged on the outer wall of the counterweight block 4 located on the right side of the base plate 1. The output end of the driving motor 5 passes through the linkage cavity 41 and is located between the two starting ends of the rotating shafts 2. Two transmission wheels 51 are coaxially arranged on the output end of the driving motor 5. A mating wheel 21 is arranged on the mating ends of the two rotating shafts 2. The two mating wheels 21 correspond to the two transmission wheels 51 one by one, and a transmission belt 22 is transmitted between the two mating wheels 21 and the corresponding transmission wheels 51. A plurality of limiting cones 44 for being inserted into the external ground are arranged at the bottom of the two counterweight blocks 4. A plurality of counterweight plates 451 are arranged in the counterweight cavity 45. A limiting strip 12 is provided at the bottom of the base plate 1 along its length direction, and the radial cross-section of the limiting strip 12 is triangular.

[0020] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A high altitude auxiliary device for a ground resistance tester, characterized in that: It includes a base plate, and extension components are arranged on both side walls of the base plate. The extension components include two oppositely arranged vertical plates and a rotating shaft movably arranged between the two vertical plates. The base plate is provided with a driving member for driving the two rotating shafts to synchronously rotate axially. An extension line is wound around the rotating shaft. The starting end of the extension line is a connecting end for connecting with a grounding cable of an external ground resistance tester. The end of the extension line is detachably connected to a grounding rod. The base plate is provided with a fixing member for stably fixing the base plate on the external ground.

2. The high-altitude auxiliary device for a ground resistance tester according to claim 1, characterized in that: Counterweight blocks are provided at both ends of the base plate. The counterweight block located on the left side of the base plate is hollow and has a counterweight cavity, and the counterweight block located on the right side of the base plate is hollow and has a linkage cavity. The starting ends of the two rotating shafts are mating ends for passing through their respective adjacent vertical plates to the linkage cavity. A driving motor is provided on the outer wall of the counterweight block located on the right side of the base plate. The output end of the driving motor passes through the linkage cavity and is located between the two starting ends of the rotating shafts. Two transmission wheels are coaxially provided on the output end of the driving motor, and mating wheels are provided on the mating ends of the two rotating shafts. The two mating wheels correspond to the two transmission wheels one by one, and a transmission belt is provided between the two mating wheels and their corresponding transmission wheels.

3. The high-altitude auxiliary device for a ground resistance tester according to claim 2, characterized in that: The bottoms of the two counterweight blocks are each provided with a plurality of limiting cones for being inserted into the external ground.

4. The high-altitude auxiliary device for a ground resistance tester according to claim 2, characterized in that: A plurality of counterweight plates are arranged in the counterweight cavity.

5. The high-altitude auxiliary device for a ground resistance tester according to claim 1, characterized in that: The bottom of the base plate is provided with a limiting strip along its length direction, and the radial cross section of the limiting strip is triangular.

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