Mining electric leakage test device

Abstract

The utility model discloses a mining electric leakage test device, which comprises a shell and an opening and closing mechanism, the bottom side of the shell is fixedly provided with two mounting frames which are symmetrical left and right, the mounting frames are of an L-shaped structure, the horizontal ends of the mounting frames are provided with mounting holes, a first conductor is fixedly arranged in the middle of the bottom side of the shell in a penetrating mode, the bottom end of the first conductor is fixedly provided with a first binding post, and the first binding post is connected with terminal equipment through a wire. According to the mining electric leakage test device, the mounting frame is arranged on the bottom side of the shell, and the mounting hole is formed in the mounting frame, so that the mining electric leakage test device can be conveniently mounted on the terminal equipment, opening and closing operation of electric leakage of the terminal equipment is directly controlled by the mining electric leakage test device, and the situation that opening and closing are not started due to the distance problem between the terminal equipment and a superior switch is avoided; and moreover, the controller is arranged to automatically control the opening and closing operation, so that the trouble of manual operation is avoided, and the safety is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of mining leakage current testing technology, and in particular relates to a mining leakage current testing device. Background Technology

[0002] The mining leakage current testing device is a special device used to detect leakage current in mining electrical equipment. Its main functions are to ensure personnel safety, prevent electrical fires, ensure normal equipment operation, and meet safety regulations.

[0003] A search revealed a patent with application number 202321039910.1, which discloses a mine explosion-proof leakage current testing system. This patent can conduct simulated leakage current protection tests on the load side terminals of mobile substations and feeder switches, as well as on the load side terminals of magnetic starters (such as the wiring cavity of motors), to verify the reliability of leakage current protection devices in underground electrical equipment. While the tests can be performed by a single professional electrician, making them more convenient and safer, this method still requires manual operation, which is cumbersome. Furthermore, in reality, there is often a distance between the terminal equipment and its upstream switch, ranging from hundreds to thousands of meters. This distance is crucial for the switch's leakage current protection. Any connection problems or other connection quality issues can lead to the upstream switch receiving the signal slowly and failing to trip within the specified time when leakage occurs, or even failing to activate protection without receiving a leakage signal, directly causing a disaster and resulting in low safety. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a mining leakage current testing device. By setting a mounting bracket on the bottom side of the casing and opening mounting holes on the mounting bracket, it is easy to install the device on the terminal equipment. The opening and closing operation of the terminal equipment leakage current is directly controlled by the device, avoiding the situation where the opening and closing of the circuit breaker fails due to the distance between the terminal equipment and its upstream switch. The response is faster, and the opening and closing operation can be automatically controlled by a controller, avoiding the trouble of manual operation and effectively improving safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A leakage current testing device for mining includes a housing and a switching mechanism. Two symmetrical mounting brackets, each L-shaped, are fixed to the bottom side of the housing. Each bracket has a mounting hole at its horizontal end. A first conductor is fixed through the center of the bottom side of the housing, with a first terminal fixed to its bottom end. The first terminal is connected to a terminal device via a wire. A second terminal is fixed to the upper end of the first conductor. A second conductor is fixed through the center of the upper side of the housing, with a third terminal fixed to its upper end. The bottom end of the second conductor contacts the second terminal via the switching mechanism. The switching mechanism includes a first fixed seat, a second fixed seat, a hydraulic cylinder, and a gate body. The first fixed seat is located on the upper side of the inner cavity of the housing. The gate body is movably connected to the bottom end of the second conductor. A second fixed base is provided on the right side. The first and second fixed bases are movably connected by a hydraulic cylinder. The gate body is in contact with the second terminal. A processor and a controller are respectively provided inside the housing. The input end of the processor is connected to the terminal equipment through a wire, and the output end of the processor is connected to the input end of the controller through a wire. The output end of the controller is connected to the input end of the hydraulic cylinder through a wire. By setting a mounting bracket on the bottom side of the housing and opening mounting holes on the mounting bracket, it is easy to install this device on the terminal equipment. The opening and closing operation of the terminal equipment in case of leakage is directly controlled by this device, avoiding the situation where the opening and closing is not started due to the distance between the terminal equipment and its upstream switch. The response is faster, and the opening and closing operation can be automatically controlled by the controller, avoiding the trouble of manual operation and effectively improving safety.

[0007] Furthermore, a display screen is provided on the right side of the housing, and an alarm and a buzzer are respectively provided on the upper right side of the housing. The output terminal of the controller is connected to the input terminals of the display screen, the alarm, and the buzzer respectively. The leakage signal is processed by the processor and then sent to the controller. The controller then controls the alarm and the buzzer to work and displays the leakage location on the display screen to remind the staff.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a mounting bracket on the bottom side of the housing and opening mounting holes on the mounting bracket, it is convenient to install this device on the terminal equipment. The opening and closing operation of the terminal equipment leakage is directly controlled by this device, avoiding the situation where the opening and closing is not started due to the distance between the terminal equipment and its upstream switch. The response is faster, and the opening and closing operation can be automatically controlled by setting a controller, avoiding the trouble of manual operation and effectively improving safety. The leakage signal is processed by the processor and then sent to the controller. The controller then controls the alarm and buzzer to work and displays the leakage location on the display screen, which is convenient for reminding the staff. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] In the diagram: 1. Outer casing, 2. Mounting bracket, 3. Mounting hole, 4. First conductor, 5. First terminal block, 6. Second terminal block, 7. Second conductor, 8. Third terminal block, 9. Opening and closing mechanism, 91. First fixed seat, 92. Second fixed seat, 93. Hydraulic cylinder, 94. Gate body, 10. Processor, 11. Controller, 12. Display screen, 13. Alarm, 14. Buzzer. Detailed Implementation

[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0012] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0013] See appendix Figure 1As shown, a mining leakage current testing device includes a housing 1 and a switching mechanism 9. Two symmetrical mounting brackets 2 are fixed to the bottom side of the housing 1. The mounting brackets 2 have an "L" shape structure, and each horizontal end of the mounting bracket 2 has a mounting hole 3. A first conductor 4 is fixed through the middle of the bottom side of the housing 1. A first terminal 5 is fixed to the bottom end of the first conductor 4 and connected to a terminal device via a wire. A second terminal 6 is fixed to the upper end of the first conductor 4. A second conductor 7 is fixed through the middle of the upper side of the housing 1. A third terminal 8 is fixed to the upper end of the second conductor 7. The bottom end of the second conductor 7 contacts the second terminal 6 via the switching mechanism 9. The switching mechanism 9 includes a first fixed seat 91, a second fixed seat 92, a hydraulic cylinder 93, and a gate body 94. The first fixed seat 91 is located on the upper side of the inner cavity of the housing 1. The gate body 94 is movably connected to the bottom end of the second conductor 7. The right side of the gate body 94... A second fixed base 92 is provided, and the first fixed base 91 and the second fixed base 92 are movably connected by a hydraulic cylinder 93. The gate body 94 is in contact with the second terminal 6. A processor 10 and a controller 11 are respectively provided inside the outer casing 1. The input end of the processor 10 is connected to the terminal equipment through a wire, and the output end of the processor 10 is connected to the input end of the controller 11 through a wire. The output end of the controller 11 is connected to the input end of the hydraulic cylinder 93 through a wire. By setting a mounting bracket 2 on the bottom side of the outer casing 1 and opening mounting holes 3 on the mounting bracket 2, it is easy to install this device on the terminal equipment. The opening and closing operation of the terminal equipment leakage is directly controlled by this device, avoiding the situation where the opening and closing is not started due to the distance between the terminal equipment and its upstream switch. The response is faster, and the opening and closing operation can be automatically controlled by the controller 11, avoiding the trouble of manual operation and effectively improving safety.

[0014] The right side of the outer casing 1 is equipped with a display screen 12, and the upper right side of the outer casing 1 is equipped with an alarm 13 and a buzzer 14. The output terminal of the controller 11 is connected to the input terminals of the display screen 12, the alarm 13 and the buzzer 14 respectively. The leakage signal is processed by the processor 10 and then sent to the controller 11. The controller 11 then controls the alarm 13 and the buzzer 14 to work and displays the leakage location on the display screen 12 to facilitate the reminder to the staff.

[0015] Working principle: By setting a mounting bracket 2 on the bottom side of the outer casing 1 and opening mounting holes 3 on the mounting bracket 2, it is easy to install this device on the terminal equipment. The opening and closing operation of the terminal equipment leakage is directly controlled by this device, avoiding the situation where the opening and closing is not started due to the distance between the terminal equipment and its upstream switch. The response is faster, and the opening and closing operation can be automatically controlled by the controller 11, avoiding the trouble of manual operation and effectively improving safety. The leakage signal is processed by the processor 10 and then sent to the controller 11. The controller 11 then controls the alarm 13 and the buzzer 14 to work and displays the leakage location on the display screen 12 for easy reminder to the staff.

[0016] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0017] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mining leakage current testing device, comprising a housing and a switching mechanism, characterized in that: Two symmetrical mounting brackets are fixed to the bottom side of the housing. The mounting brackets are L-shaped and each has a mounting hole at its horizontal end. A first conductor is fixed through the middle of the bottom side of the housing. A first terminal is fixed to the bottom end of the first conductor and connected to the terminal device via a wire. A second terminal is fixed to the upper end of the first conductor. A second conductor is fixed through the middle of the upper side of the housing and a third terminal is fixed to the upper end of the second conductor. The bottom end of the second conductor contacts the second terminal via an opening / closing mechanism. The opening / closing mechanism includes a first fixed seat, a second fixed seat, a hydraulic cylinder, and a gate body. The first fixed seat is located on the upper side of the inner cavity of the housing. The gate body is movably connected to the bottom end of the second conductor. A second fixed seat is located on the right side of the gate body. The first and second fixed seats are movably connected via a hydraulic cylinder. The gate body contacts the second terminal. A processor and a controller are respectively located inside the housing. The input end of the processor is connected to the terminal device via a wire. The output end of the processor is connected to the input end of the controller via a wire. The output end of the controller is connected to the input end of the hydraulic cylinder via a wire.

2. The mining leakage current testing device according to claim 1, characterized in that: The right side of the housing is equipped with a display screen, and the upper right side of the housing is equipped with an alarm and a buzzer. The output of the controller is connected to the input of the display screen, the alarm, and the buzzer.

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