An on-line monitoring device for downhole grounding resistance

Abstract

The utility model discloses an underground grounding resistance on -line monitoring equipment belongs to grounding resistance monitoring technical field, is installed with transmission to frame, transmission one end is connected with drive arrangement, and the other end of transmission is connected with removal wheel, drives removal wheel through drive arrangement, transmission and drives, is installed with chassis on the frame, and the front end of frame and chassis is equipped with the connecting frame, and grounding resistance tester installs on the chassis, and the chassis height is elevated through frame and removal wheel, and then elevates the ground clearance of grounding resistance tester, the lower end of chassis is provided with a plurality of waist hole. The combination use of plug -in rod and drill bit improves the equipment stability, and can fix the equipment under the changeable environment. The drill bit can be adjusted to the best position to be firmly fixed, ensuring the reliability and safety of the underground monitoring work. The connecting type ferrule provides a stable path for the grounding resistance tester wire, avoids the wire confusion damage, and ensures stable connection. This enhances the equipment performance and operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of grounding resistance monitoring technology, and in particular to an online monitoring device for underground grounding resistance. Background Technology

[0002] The underground grounding resistance online monitoring equipment is a device specifically designed and manufactured for online monitoring of the connection status of grounding leads, loop grounding resistance, and metal loop connection resistance. This equipment typically employs precise measurement methods, such as the three-wire or two-wire method, to test the grounding resistance. By detecting the resistance and voltage at the grounding point online, the equipment can monitor the health of the grounding status in real time, thereby effectively avoiding the adverse effects caused by grounding faults such as loose connections and sudden changes in resistance.

[0003] Current online grounding resistance monitoring equipment for underground applications faces challenges in terms of transportation. Common methods include trolley transport and manual transport. While manual transport is flexible, it is labor-intensive, especially in the complex underground environment, where the process is cumbersome and time-consuming. Trolley transport, while reducing manpower, requires the equipment to be securely fixed to the vehicle to prevent damage or measurement errors due to shaking during transport. Furthermore, the limited space underground restricts trolley operation, increasing the difficulty and complexity of transportation. Utility Model Content

[0004] The main objective of this invention is to provide an online monitoring device for underground grounding resistance, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An online monitoring device for underground grounding resistance includes a chassis, a grounding resistance tester, and a control panel, wherein the control panel is located on the end face of the grounding resistance tester; A transmission device is installed on the frame, and one end of the transmission device is connected to a drive device. The other end of the transmission device is connected to a movable wheel. The movable wheel is driven by the drive device and the transmission device. A chassis is installed on the frame. A connecting frame is provided at the front end of the frame and the chassis. The ground resistance tester is installed on the chassis. The chassis height is raised by the frame and the movable wheel, thereby raising the ground resistance tester's height above the ground. The chassis has multiple waist holes at its lower end. The wires of the grounding resistance tester pass through the waist holes and connect to the underground grounding resistance detection terminal to realize the detection operation. One of the waist holes has a rod inserted into it, and a fastener is fitted on the rod to fix it to the chassis. The lower end of the rod has a drill bit, and multiple connecting collars are connected to the side wall of the rod. The wires of the grounding resistance tester are laid along the rod and the connecting collars, and the mobile vehicle is fixed by the rod and the drill bit.

[0006] In a further preferred embodiment of this application, the connecting frame includes an upper base tube, a lower telescopic rod, and a connector. The lower telescopic rod is inserted into an opening in the upper base tube, and the connectors are located at the upper and lower ends of the upper base tube and the lower telescopic rod, respectively. The connecting frame is connected to the vehicle frame and the chassis through the connectors. In a further preferred embodiment of this application, multiple waist holes are equidistantly distributed on the chassis, and the waist holes extend to the lower end of the grounding resistance tester. Bolts are inserted into the waist holes to fix the grounding resistance tester on the chassis, and the grounding resistance tester dissipates heat through the waist holes. In a further preferred embodiment of this application, the insertion rod and the drill bit are designed as an integral unit, the rod end of the insertion rod is threaded, the fastener is a double nut structure or a nut and anti-slip washer structure, the fastener is sleeved on the threaded part of the insertion rod, and the extension length of the insertion rod and the drill bit can be adjusted by the fastener; In a further preferred embodiment of this application, the insertion rod slides along the waist hole to adjust the position of the drill bit, and the side wall of the insertion rod is provided with multiple screw holes, which are equidistantly distributed on the insertion rod. In a further preferred embodiment of this application, the connecting collar includes an open collar and a bolt. The bolt is placed on the open collar and is integrally designed with the open collar. The bolt is inserted into the threaded hole of the insert rod. The surface of the open collar is connected with an anti-slip rubber sleeve by an adhesive.

[0007] Compared with the prior art, the present invention has the following beneficial effects: The grounding resistance tester connects to the grounding resistance detection terminal underground through the waist hole of the chassis, realizing accurate measurement of grounding resistance and ensuring the accuracy of monitoring data. It can also be moved quickly underground by a mobile vehicle, facilitating multi-point detection underground.

[0008] The combined use of the insertion rod and drill bit not only enhances the stability of the equipment but also enables its secure fixation in various environments. The sliding design of the insertion rod along the borehole allows the drill bit to be adjusted to the optimal position for a stable fixation. This design enables the equipment to operate stably in complex and variable downhole environments, improving the reliability and safety of monitoring operations.

[0009] The connecting collar design provides a stable laying path for the grounding resistance tester's conductors. Laying the conductors along the insertion rod and connecting collar not only avoids conductor tangling and damage but also ensures a stable connection between the conductors and the grounding resistance tester. This design improves the overall performance and ease of operation of the equipment. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a diagram showing the overall structure of the present invention; Figure 4 The diagram shows the chassis, grounding resistance tester, insertion rod, drill rod, and connecting collar of this utility model.

[0011] In the diagram: 1. Frame; 2. Transmission device; 3. Drive device; 4. Transfer wheel; 5. Connecting frame; 6. Chassis; 7. Waist hole; 8. Grounding resistance tester; 9. Control panel; 10. Insert rod; 11. Fastener; 12. Drill bit; 13. Connecting collar. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0013] like Figure 1 - Figure 4 As shown, an online monitoring device for underground grounding resistance includes a chassis 1, a grounding resistance tester 8, and a control panel 9 as its core components. The control panel 9 is installed at one end of the grounding resistance tester 8, facilitating real-time monitoring and operation by the operator.

[0014] The frame 1 integrates the transmission device 2, one end of which is connected to the drive device 3, and the other end is connected to the moving wheels 4. Through the coordinated operation of the drive device 3 and the transmission device 2, the moving wheels 4 can be effectively driven, thereby realizing the overall movement of the equipment. The frame 1 is also equipped with a chassis 6, and the front ends of the frame 1 and the chassis 6 are connected by a connecting frame 5. The ground resistance tester 8 is stably mounted on the chassis 6. Through the cooperation of the frame 1 and the moving wheels 4, the height of the chassis 6 can be adjusted, thereby increasing the ground clearance of the ground resistance tester 8 to adapt to diverse monitoring environments.

[0015] The lower end of the chassis 6 is specially designed with multiple slots 7. These slots 7 allow the wires of the grounding resistance tester 8 to pass through and connect to the grounding resistance detection terminal downhole, thereby enabling accurate measurement of the downhole grounding resistance. To enhance the stability and functionality of the equipment, a rod 10 is inserted into one of the slots 7. A fastener 11 is fitted onto the rod 10, which securely fixes the rod 10 to the chassis 6. A drill bit 12 is provided at the lower end of the rod 10 for securing the entire mobile vehicle when necessary. In addition, multiple connecting collars 13 are connected to the side wall of the rod 10. The wires of the grounding resistance tester 8 are laid along the rod 10 and the connecting collars 13. The stable fixation of the mobile vehicle is achieved through the cooperation of the rod 10 and the drill bit 12.

[0016] The connecting frame 5 consists of an upper base tube, a lower telescopic rod, and connectors. The lower telescopic rod is inserted into the opening in the upper base tube, and the connectors are located at the upper and lower ends of the upper base tube and the lower telescopic rod, respectively. The connecting frame 5 is connected to the vehicle frame 1 and the chassis 6 through the connectors, ensuring the structural stability and ease of operation of the equipment.

[0017] To improve the heat dissipation performance of the equipment, multiple slots 7 are equidistantly distributed on the chassis 6, extending to the lower end of the grounding resistance tester 8. By inserting bolts into the slots 7, the grounding resistance tester 8 can be firmly fixed to the chassis 6, and the design of the slots 7 also helps to dissipate heat from the grounding resistance tester 8.

[0018] The insertion rod 10 and the drill bit 12 are integrated into one piece. The end of the insertion rod 10 is threaded, and the fastener 11 adopts a double nut structure or a combination of nut and anti-slip washer. The fastener 11 is fitted onto the threaded part of the insertion rod 10, and the extension length of the insertion rod 10 and the drill bit 12 can be adjusted by the fastener 11 to adapt to different working environments and needs.

[0019] The insertion rod 10 can slide along the waist hole 7 to adjust the position of the drill bit 12 for optimal fixation. Multiple screw holes are provided on the side wall of the insertion rod 10, equidistantly distributed to facilitate further adjustment and fixation of the equipment.

[0020] The connecting collar 13 consists of an open collar and a bolt. The bolt is installed on the open collar, which is integrally designed with the open collar, and is inserted into the threaded hole of the insert rod 10. The surface of the open collar is bonded with an anti-slip rubber sleeve by adhesive, which not only enhances the strength of the connection but also improves operational safety.

[0021] Start the drive unit 3, which works in conjunction with the transmission unit 2 to drive the moving wheels 4, moving the equipment to the location of the downhole environment to be monitored. Secure the entire mobile vehicle using the insertion rod 10 and drill bit 12. Insert the insertion rod 10 into the waist hole 7 of the chassis 6 and secure it with fasteners 11 (double nut structure or nut and anti-slip washer structure). Adjust the extension length of the insertion rod 10 to adapt to different working environments and requirements. Drill the drill bit 12 into the ground at the appropriate location to further secure the equipment. Pass the wire of the grounding resistance tester 8 through the waist hole 7 of the chassis 6 and connect it to the downhole grounding resistance detection terminal. Ensure that the wire is laid along the insertion rod 10 and the connecting collar 13 for a stable connection.

[0022] Operate the grounding resistance tester 8 on the control panel 9. Monitor the displayed data on the control panel 9 to ensure that the grounding resistance tester 8 is working properly and obtaining accurate monitoring results. Ensure good heat dissipation performance of the equipment, especially the grounding resistance tester 8. If necessary, further heat dissipation can be achieved through the waist hole 7. Make necessary adjustments to the equipment according to the actual monitoring environment and requirements, such as adjusting the length of the insertion rod 10 and the position of the moving wheels 4. Regularly check the tightness and working status of each component of the equipment to ensure the stability and safety of the equipment. After completing the monitoring task, loosen the fasteners 11 and pull out the insertion rod 10 and drill bit 12. Start the drive unit 3, which works in conjunction with the transmission unit 2 to drive the moving wheels 4, moving the equipment to a new monitoring position or returning it to its original position for maintenance and storage.

[0023] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An online monitoring device for underground grounding resistance, comprising a chassis (1), a grounding resistance tester (8), and a control panel (9), wherein the control panel (9) is located on the end face of the grounding resistance tester (8), characterized in that: A transmission device (2) is installed on the frame (1), and a drive device (3) is connected to one end of the transmission device (2). A movable wheel (4) is connected to the other end of the transmission device (2). The movable wheel (4) is driven by the drive device (3) and the transmission device (2). A chassis (6) is installed on the frame (1). A connecting frame (5) is provided at the front end of the frame (1) and the chassis (6). The ground resistance tester (8) is installed on the chassis (6). The height of the chassis (6) is raised by the frame (1) and the movable wheel (4), thereby raising the ground resistance tester (8) from the ground. The chassis (6) has multiple waist holes (7) at its lower end. The wires of the grounding resistance tester (8) pass through the waist holes (7) and connect to the underground grounding resistance detection terminal to realize the detection operation. One of the waist holes (7) has a rod (10) inserted into it, and a fastener (11) is fitted on the rod (10). The rod (10) is fixed to the chassis (6) by the fastener (11). The lower end of the rod (10) is provided with a drill bit (12), and multiple connecting collars (13) are connected to the side wall of the rod (10). The wire of the ground resistance tester (8) is laid along the rod (10) and the connecting collars (13), and the mobile vehicle is fixed by the rod (10) and the drill bit (12).

2. The underground grounding resistance online monitoring device according to claim 1, characterized in that: The connecting frame (5) includes an upper base tube, a lower telescopic rod and a connector. The lower telescopic rod is inserted into the opening of the upper base tube, and the connector is located at the upper and lower ends of the upper base tube and the lower telescopic rod, respectively. The connecting frame (5) is connected to the vehicle frame (1) and the chassis (6) through the connector.

3. The underground grounding resistance online monitoring device according to claim 2, characterized in that: Multiple waist holes (7) are evenly distributed on the chassis (6). The waist holes (7) extend to the lower end of the ground resistance tester (8). Bolts are inserted into the waist holes (7) to fix the ground resistance tester (8) on the chassis (6). The ground resistance tester (8) dissipates heat through the waist holes (7).

4. The underground grounding resistance online monitoring device according to claim 3, characterized in that: The insertion rod (10) and the drill bit (12) are designed as a single unit. The rod end of the insertion rod (10) is threaded. The fastener (11) is a double nut structure or a nut and anti-slip washer structure. The fastener (11) is fitted onto the threaded part of the insertion rod (10), and the extension length of the insertion rod (10) and the drill bit (12) can be adjusted through the fastener (11).

5. The underground grounding resistance online monitoring device according to claim 4, characterized in that: The insertion rod (10) slides along the waist hole (7) to adjust the position of the drill bit (12). The side wall of the insertion rod (10) is provided with multiple screw holes, which are equidistantly distributed on the insertion rod (10).

6. The underground grounding resistance online monitoring device according to claim 5, characterized in that: The connecting collar (13) includes an open collar and a bolt. The bolt is placed on the open collar. The bolt and the open collar are designed as a single unit and are inserted into the screw hole of the insert rod (10) by the bolt. The surface of the open collar is connected with an anti-slip rubber sleeve by an adhesive.

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