Real-time monitoring device for grounding resistance of underground equipment in coal industry

Abstract

The utility model relates to the field of grounding resistance monitoring technology, and discloses a real-time monitoring device for grounding resistance of underground equipment in the coal industry, including a base, a monitoring box is fixedly connected to the upper surface of the base, a resistance monitoring device is fixedly installed inside the monitoring box, a through hole is opened on the upper surface of the monitoring box, a filter screen is fixedly connected to the inner wall of the through hole, an adjustment box is symmetrically fixedly connected to the upper surface of the monitoring box, a sliding groove is opened on the side surface of the adjustment box, a sliding rod is fixedly connected to the inner wall of the sliding groove, a sliding block is slidably connected to the surface of the sliding rod, a sliding plate is fixedly connected between the sliding blocks, a cleaning brush is fixedly connected to the lower surface of the sliding plate, and a fixing rod is fixedly connected to the upper surface of the sliding plate. The filtering process of impurities and dust is realized, so that the filter screen is kept clean, and impurities and dust can be prevented from entering the interior of the monitoring box, which is convenient for the staff to use.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding resistance monitoring, in particular to a real-time monitoring device for grounding resistance of underground equipment in the coal industry. Background Art

[0002] Grounding is an important measure to ensure the normal operation of electrical equipment and avoid accidents of electric shock. Grounding resistance is an important parameter to measure whether the grounding state is good or not, and its size directly determines the degree of contact between the electrical device and the earth. Therefore, there are strict regulations and clear requirements for the resistance value and test cycle of various types of grounding resistance, such as protective grounding, working grounding, lightning protection grounding, etc., to ensure personal safety and equipment stability.

[0003] The utility model document with patent application number CN202123440159.X, this application relates to a ground resistance monitoring device, including a measuring box, a measuring line, a connecting line, a probe and an auxiliary charging device, wherein the measuring box includes a box body, a detection device, a communication module and a battery, the detection device, the communication module and the battery are all installed in the box body and electrically connected to an external power supply, the communication module is electrically connected to the detection device, and is suitable for transmitting the data signal detected by the detection device to the control system, the connecting line connects the detection device and the embedded probe, one end of the measuring line is connected to the detection device, and the other end is connected to the connection body to be tested, the auxiliary charging device is electrically connected to the battery, and the battery is electrically connected to the detection device and the communication module. By setting a communication module electrically connected to the detection device in the box body, and electrically connecting the auxiliary charging device to the measuring box, the ground resistance monitoring device of the disclosed embodiment can perform real-time data monitoring and remote inspection of electrical equipment, greatly reducing work pressure and improving work efficiency.

[0004] The above application document proposes a ground resistance monitoring device. In the coal industry, there will be impurities and dust in the surrounding environment, which will affect the monitoring device and make the monitored data inaccurate. The above device cannot solve this problem. Based on this, further improvements are needed for the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a real-time monitoring device for grounding resistance of underground equipment in the coal industry to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a real-time monitoring device for grounding resistance of underground equipment in the coal industry, comprising a base, a lower surface of the base is fixedly connected with four universal wheels, the upper surface of the base is fixedly connected with a monitoring box, the interior of the monitoring box is fixedly installed with a resistance monitoring device, the upper surface of the monitoring box is provided with a through hole, the inner wall of the through hole is fixedly connected with a filter screen, the lower surface of the filter screen corresponds to the interior of the monitoring box, the upper surface of the monitoring box is symmetrically fixedly connected with an adjustment box, the side surface of the adjustment box is provided with a sliding groove, the inner wall of the sliding groove is fixedly connected with a sliding rod, the surface of the sliding rod is slidably connected with a sliding block, a sliding plate is fixedly connected between the sliding blocks, a cleaning brush is fixedly connected to the lower surface of the sliding plate, the cleaning brush contacts the upper surface of the filter screen, the upper surface of the sliding plate is fixedly connected with a fixed rod, and the sliding plate is driven to move horizontally by the fixed rod.

[0007] In a preferred embodiment of the present invention, the front and back surfaces of the base are fixedly connected with fixing plates, a threaded hole is provided on the surface of the fixing plate, a threaded rod is threadedly connected to the inner wall of the threaded hole, the top end of the threaded rod is fixedly connected with a rotating disk, and the bottom end of the threaded rod is fixedly connected with a bottom plate, and the threaded rod can be driven to rotate by the rotating disk.

[0008] In a preferred embodiment of the utility model, a connecting wire is fixedly connected to the side surface of the resistance monitoring device, a through hole is opened on the side surface of the monitoring box, the connecting wire is slidably connected to the inner wall of the through hole, and a detection needle is fixedly connected to one end of the connecting wire.

[0009] In a preferred embodiment of the present invention, a limiting groove is provided on the side surface of the base, and a limiting rod is fixedly connected to the inner wall of the limiting groove, and two limiting blocks are slidably connected to the surface of the limiting rod, and the limiting block is slidably connected to the inner wall of the limiting groove, and the side surface of the limiting block is fixedly connected to a limiting splint, and the limiting splint is slidably connected to the side surface of the base, and a V-shaped rubber pad is fixedly connected to the back of the limiting splint, and a fixing block is fixedly connected to the side surface of the limiting splint, and a threaded hole is provided on the surface of the fixing block, and a first bolt is threadedly connected to the inner wall of the threaded hole, and a nut is threadedly connected to the surface of the first bolt, and the two limiting splints can be fixed by the first bolt.

[0010] In a preferred embodiment of the present invention, a wireless transmitter is fixedly installed on the upper surface of the resistance monitoring device, a conductive wire is fixedly connected to the side surface of the resistance monitoring device, an indicator light is fixedly connected to the side surface of the monitoring box, and the output end of the conductive wire is connected to the indicator light.

[0011] In a preferred embodiment of the utility model, a protective plate is rotatably connected to the front surface of the monitoring box, a handle is fixedly connected to the front surface of the protective plate, a connecting plate is fixedly connected to the side surface of the protective plate, a threaded groove is provided on the front surface of the monitoring box, a threaded hole is provided on the front surface of the connecting plate, a second bolt is threadedly connected to the inner wall of the threaded groove and the threaded hole, and the protective plate can be fixedly connected to the front surface of the monitoring box by the second bolt.

[0012] Beneficial Effects

[0013] The utility model provides a real-time monitoring device for grounding resistance of underground equipment in the coal industry, which has the following beneficial effects:

[0014] 1. The real-time monitoring device for the grounding resistance of underground equipment in the coal industry, by setting a filter plate and a cleaning brush, uses the filter plate to filter impurities and dust in the surrounding environment, so that the impurities and dust remain on the upper surface of the filter plate, and uses a fixed rod to drive the sliding plate to slide horizontally, and then the cleaning brush cleans the upper surface of the filter plate, and cleans the impurities and dust on the upper surface of the filter plate, thereby filtering the impurities and dust, keeping the filter plate clean, preventing impurities and dust from entering the interior of the monitoring box, and facilitating the use of the staff.

[0015] 2. The real-time monitoring device for grounding resistance of underground equipment in the coal industry monitors the grounding resistance by setting indicator lights and threaded rods. When a certain threshold is reached, the resistance monitoring device transmits the signal to the inside of the indicator light through a conduction line, so that the indicator light lights up and transmits a signal to the staff. The threaded rod is driven to rotate by a rotating disk, so that the bottom plate is squeezed and then in contact with the ground. The device is stabilized to prevent the device from shifting and shaking, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of the utility model from a first stereoscopic viewing angle;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model in a front section;

[0018] Figure 3 It is a schematic diagram of the structure of the utility model from the side;

[0019] Figure 4 It is a structural schematic diagram of the second stereoscopic viewing angle of the utility model.

[0020] In the figure: 1. base; 2. monitoring box; 3. resistance monitoring device; 4. filter screen; 5. adjustment box; 6. sliding rod; 7. sliding block; 8. sliding plate; 9. cleaning brush; 10. fixing rod; 11. fixing plate; 12. threaded rod; 13. rotating disk; 14. bottom plate; 15. connecting wire; 16. detection needle; 17. limit rod; 18. limit block; 19. limit clamp; 20. V-shaped rubber pad; 21. fixing block; 22. first bolt; 23. nut; 24. wireless transmitter; 25. transmission line; 26. indicator light; 27. protective plate; 28. connecting plate; 29. ​​second bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a real-time monitoring device for grounding resistance of underground equipment in the coal industry, comprising a base 1, the lower surface of the base 1 is fixedly connected with four universal wheels, the upper surface of the base 1 is fixedly connected with a monitoring box 2, the interior of the monitoring box 2 is fixedly installed with a resistance monitoring device 3, the upper surface of the monitoring box 2 is provided with a through hole, the inner wall of the through hole is fixedly connected with a filter screen plate 4, the lower surface of the filter screen plate 4 corresponds to the interior of the monitoring box 2, the upper surface of the monitoring box 2 is symmetrically fixedly connected with an adjustment box 5, the side surface of the adjustment box 5 is provided with a sliding groove, the inner wall of the sliding groove is fixedly connected with a sliding rod 6, the surface of the sliding rod 6 is slidably connected with a sliding block 7, and the sliding blocks 7 are fixedly connected between them. A sliding plate 8 is provided, and a cleaning brush 9 is fixedly connected to the lower surface of the sliding plate 8. The cleaning brush 9 contacts the upper surface of the filter mesh plate 4. A fixing rod 10 is fixedly connected to the upper surface of the sliding plate 8. The filter mesh plate 4 is used to filter impurities and dust in the surrounding environment, so that the impurities and dust remain on the upper surface of the filter mesh plate 4. The fixing rod 10 is used to drive the sliding plate 8 to slide horizontally, and then the cleaning brush 9 cleans the upper surface of the filter mesh plate 4. The impurities and dust on the upper surface of the filter mesh plate 4 are cleaned, thereby filtering the impurities and dust, keeping the filter mesh plate 4 clean, preventing impurities and dust from entering the interior of the monitoring box 2, and facilitating the use of the staff.

[0023] The front and back surfaces of the base 1 are fixedly connected with a fixing plate 11, a threaded hole is provided on the surface of the fixing plate 11, a threaded rod 12 is threadedly connected to the inner wall of the threaded hole, a rotating disk 13 is fixedly connected to the top of the threaded rod 12, a bottom end of the threaded rod 12 is fixedly connected to a bottom plate 14, a connecting wire 15 is fixedly connected to the side surface of the resistance monitoring device 3, a through hole is provided on the side surface of the monitoring box 2, the connecting wire 15 is slidably connected to the inner wall of the through hole, and a detection needle 16 is fixedly connected to one end of the connecting wire 15.

[0024] A limiting groove is provided on the side surface of the base 1, and a limiting rod 17 is fixedly connected to the inner wall of the limiting groove. Two limiting blocks 18 are slidably connected to the surface of the limiting rod 17. The limiting blocks 18 are slidably connected to the inner wall of the limiting groove. A limiting splint 19 is fixedly connected to the side surface of the limiting block 18. The limiting splint 19 is slidably connected to the side surface of the base 1. A V-shaped rubber pad 20 is fixedly connected to the back of the limiting splint 19. A fixing block 21 is fixedly connected to the side surface of the limiting splint 19. A threaded hole is provided on the surface of the fixing block 21. A first bolt 22 is threadedly connected to the inner wall of the threaded hole, and a nut 23 is threadedly connected to the surface of the first bolt 22.

[0025] A wireless transmitter 24 is fixedly installed on the upper surface of the resistance monitoring device 3, a conductive wire 25 is fixedly connected to the side surface of the resistance monitoring device 3, an indicator light 26 is fixedly connected to the side surface of the monitoring box 2, and the output end of the conductive wire 25 is connected to the indicator light 26. A protective plate 27 is rotatably connected to the front surface of the monitoring box 2, a handle is fixedly connected to the front surface of the protective plate 27, and a connecting plate 28 is fixedly connected to the side surface of the protective plate 27. A threaded groove is provided on the front surface of the monitoring box 2, and a threaded hole is provided on the front surface of the connecting plate 28. The threaded groove is threadedly connected to the inner wall of the threaded hole. The second bolt 29 can be used to fix the protective plate 27 to the front surface of the monitoring box 2. When the grounding resistance is monitored and a certain threshold is reached, the resistance monitoring device 3 transmits a signal to the inside of the indicator light 26 through the conductive line 25, so that the indicator light 26 lights up and transmits a signal to the staff. The rotating disk 13 is used to drive the threaded rod 12 to rotate, so that the bottom plate 14 is squeezed, and then the bottom plate 14 contacts the ground, and the device is stabilized to prevent the device from deflecting and shaking, thereby improving the stability of the device.

[0026] Working principle: First, the staff pushes the device to the designated location, uses the rotating disk 13 to drive the threaded rod 12 to rotate, so that the bottom plate 14 is squeezed, and then the bottom plate 14 contacts the ground, the device is stabilized, the detection needle 16 is inserted into the ground, and the two fixing blocks 21 are limited and fixed by the first bolt 22 and the nut 23, so that the limit clamp 19 and the V-shaped rubber pad 20 limit and fix the connecting line 15 to prevent the connecting line 15 from deviating and shaking. When monitoring the grounding resistance, when the resistance reaches a certain threshold, the resistance monitoring device 3 transmits the signal to the indicator light 2 through the transmission line 25 6, the indicator light 26 lights up to transmit a signal to the staff, and at the same time transmits the signal to the base station background through the wireless transmitter 24, which is convenient for the staff to use. The filter plate 4 is used to filter impurities and dust in the surrounding environment, so that the impurities and dust remain on the upper surface of the filter plate 4, and the fixed rod 10 is used to drive the sliding plate 8 to move horizontally, so that the sliding block 7 moves horizontally on the surface of the sliding rod 6, and then the cleaning brush 9 cleans the impurities and dust on the upper surface of the filter plate 4, so that the filter plate 4 remains clean, and impurities and dust can be prevented from entering the interior of the monitoring box 2, which is convenient for the staff to use.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A real-time monitoring device for grounding resistance of underground equipment in the coal industry, comprising a base (1), the lower surface of the base (1) being fixedly connected with four universal wheels, characterized in that: The upper surface of the base (1) is fixedly connected to a monitoring box (2), the interior of the monitoring box (2) is fixedly installed with a resistance monitoring device (3), the upper surface of the monitoring box (2) is provided with a through hole, the inner wall of the through hole is fixedly connected to a filter screen (4), the lower surface of the filter screen (4) corresponds to the interior of the monitoring box (2), the upper surface of the monitoring box (2) is symmetrically fixedly connected to an adjustment box (5), the side surface of the adjustment box (5) is provided with a sliding groove, the inner wall of the sliding groove is fixedly connected to a sliding rod (6), the surface of the sliding rod (6) is slidably connected to a sliding block (7), a sliding plate (8) is fixedly connected between the sliding blocks (7), the lower surface of the sliding plate (8) is fixedly connected to a cleaning brush (9), the cleaning brush (9) is in contact with the upper surface of the filter screen (4), and the upper surface of the sliding plate (8) is fixedly connected to a fixing rod (10).

2. The real-time monitoring device for grounding resistance of underground equipment in the coal industry according to claim 1 is characterized by: The front and back surfaces of the base (1) are both fixedly connected to a fixing plate (11), a threaded hole is provided on the surface of the fixing plate (11), a threaded rod (12) is threadedly connected to the inner wall of the threaded hole, a rotating disk (13) is fixedly connected to the top end of the threaded rod (12), and a bottom plate (14) is fixedly connected to the bottom end of the threaded rod (12).

3. The real-time monitoring device for grounding resistance of underground equipment in the coal industry according to claim 2 is characterized by: A connecting wire (15) is fixedly connected to the side surface of the resistance monitoring device (3), a through hole is provided on the side surface of the monitoring box (2), the connecting wire (15) is slidably connected to the inner wall of the through hole, and a detection needle (16) is fixedly connected to one end of the connecting wire (15).

4. The real-time monitoring device for grounding resistance of underground equipment in the coal industry according to claim 3 is characterized by: A limiting groove is provided on the side surface of the base (1); a limiting rod (17) is fixedly connected to the inner wall of the limiting groove; two limiting blocks (18) are slidably connected to the surface of the limiting rod (17); and the limiting blocks (18) are slidably connected to the inner wall of the limiting groove.

5. The real-time monitoring device for grounding resistance of underground equipment in the coal industry according to claim 4 is characterized by: The side surface of the limit block (18) is fixedly connected to a limit clamp (19), the limit clamp (19) is slidably connected to the side surface of the base (1), the back of the limit clamp (19) is fixedly connected to a V-shaped rubber pad (20), the side surface of the limit clamp (19) is fixedly connected to a fixing block (21), a threaded hole is provided on the surface of the fixing block (21), the inner wall of the threaded hole is threadedly connected to a first bolt (22), and the surface of the first bolt (22) is threadedly connected to a nut (23).

6. The real-time monitoring device for grounding resistance of underground equipment in the coal industry according to claim 5, characterized in that: A wireless transmitter (24) is fixedly mounted on the upper surface of the resistance monitoring device (3), a conductive wire (25) is fixedly connected to the side surface of the resistance monitoring device (3), an indicator light (26) is fixedly connected to the side surface of the monitoring box (2), and an output end of the conductive wire (25) is connected to the indicator light (26).

7. The real-time monitoring device for grounding resistance of underground equipment in the coal industry according to claim 6 is characterized by: A protective plate (27) is rotatably connected to the front surface of the monitoring box (2), a handle is fixedly connected to the front surface of the protective plate (27), and a connecting plate (28) is fixedly connected to the side surface of the protective plate (27).

8. The real-time monitoring device for grounding resistance of underground equipment in the coal industry according to claim 7, characterized in that: A threaded groove is provided on the front surface of the monitoring box (2), and a threaded hole is provided on the front surface of the connecting plate (28). A second bolt (29) is threadedly connected between the threaded groove and the inner wall of the threaded hole, and the protective plate (27) can be fixedly connected to the front surface of the monitoring box (2) by the second bolt (29).

Images