Combined mining flame-proof selective earth leakage protection device

Abstract

The utility model discloses a combined mining flame-proof selective earth leakage protection device, which comprises an explosion-proof box, a support shell arranged in the explosion-proof box, and at least four support blocks fixedly arranged on one side of the support shell, a rotating rod is rotatably arranged on one side of the support block, and the rotating rod is rotatably arranged on the other side of the support shell. The outer side of the rotating rod is fixedly connected with a supporting connecting plate, one side of the supporting connecting plate is fixedly connected with an anti-skid cushion block, the anti-skid cushion block is connected with a clamping frame in a clamping mode, and the clamping frame is fixedly connected with the supporting shell; the height of the whole device during use can be increased, and the stability of the device during operation is ensured under the anti-skid and simultaneous effects of the four anti-skid cushion blocks, so that the supporting shell can be fixedly supported and used according to the actual ground condition during use; the stability and reliability of the device are ensured when the zero-sequence current is accessed for detection, and whether the detected part leaks electricity or not is detected in time.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to a combined flameproof selective leakage protection device for mining. Background Art

[0002] The power supply network in a mine is generally an IT system, which is powered by a transformer connected to the main feed switch, then to the busbar and then to the sub-feed switch. There are only three live wires, no neutral wire and no ground wire.

[0003] In the mine power supply network, any branch of the multiple power supply lines may leak electricity, so it is necessary to detect the circuit. The main devices used are insulation monitoring devices, digital line protection devices and selective leakage protection devices. When the above devices are placed and used, additional support structures need to be installed to improve the moisture resistance of the device, which affects the safety and efficiency during use. In actual use, these devices may encounter problems such as false touch, false alarm and poor anti-interference ability. They cannot detect the zero-sequence current generated when detecting line leakage under each main feed switch, which affects the stability of the device when detecting the line and the accuracy of the results.

[0004] Therefore, we provide a combined mining flameproof selective leakage protection device. Utility Model Content

[0005] The purpose of the utility model is to provide a combined flameproof selective leakage protection device for mining in view of the above-mentioned technical problems, so as to achieve the effect of combined rapid and accurate detection of line leakage.

[0006] In view of this, the utility model provides a combined explosion-proof selective leakage protection device for mining, including an explosion-proof box and a supporting shell installed inside the explosion-proof box, and a supporting block fixedly arranged on one side of the supporting shell, wherein there are at least four supporting blocks, a rotating rod is rotatably arranged on one side of the supporting block, a supporting connecting plate is fixedly connected to the outer side of the rotating rod, an anti-slip pad is fixedly connected to one side of the supporting connecting plate, the anti-slip pad is clamped and connected to a clamping frame, and the clamping frame is fixedly connected to the supporting shell.

[0007] Preferably, a display panel is fixedly connected to one side of the supporting shell, and a plurality of line display lights are fixedly connected to one side of the display panel.

[0008] Preferably, connecting frames are fixedly connected to corresponding two sides of the supporting shell, the display panel is located between the two connecting frames, and the display panel and the supporting shell are both plugged with a plurality of fastening bolts.

[0009] Preferably, a connection support plate is fixedly connected to one side of the support shell, and a signal connection plate and a line detection connection plate are fixedly connected to one side of the connection support plate.

[0010] Preferably, a serial port and an Ethernet connection port are provided on one side of the signal connection board, and there are at least two Ethernet connection ports.

[0011] Preferably, an indicator light is fixedly provided on one side of the Ethernet connection port, and the indicator light is fixedly connected to the signal connection board.

[0012] Preferably, one side of the line detection connection plate is fixedly connected with a line connection port, and there are a plurality of line connection ports.

[0013] Compared with the prior art, the utility model provides a combined flameproof selective leakage protection device for mining, which has the following beneficial effects:

[0014] 1. The utility model, through the connection between the support connecting plate and the support block and the length of the support connecting plate itself, moves the four anti-skid pads to directly contact the ground, which can increase the height of the overall device when in use, and ensure the stability of the device during operation under the anti-skid and simultaneous action of the four anti-skid pads themselves, so that the support shell can be fixed and supported according to the actual ground conditions during use, ensuring the stability and reliability of the device when connected to the zero-sequence current for detection, and timely detecting whether the detected component is leaking.

[0015] 2. The utility model forms a combined device by arranging a supporting shell, an explosion-proof box, a communication manager, and a serial port to network port module inside and outside the device, thereby improving the stability and safety of the device during operation.

[0016] 3. The utility model has a fast zero-sequence current collection speed, a sampling rate of 25.6K, 512 sampling points per cycle, and a cycle of 20 milliseconds. The collected signal is not distorted, and all engineering interference signals are filtered out, ensuring the accuracy of the specific branch of the leakage alarm, and the accuracy rate can reach 95%.

[0017] 4. In the utility model, the zero-sequence current waveforms of the first 2 cycles and the last 3 cycles at the time of the fault can be stored in the device, the fault recording can be extracted by software for accident analysis, and the fault alarm information can be uploaded to the background or mobile phone via the network cable.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall front view structure of a combined flameproof selective leakage protection device for mining proposed by the utility model;

[0020] Figure 2This is a rear view structural schematic diagram of a combined flameproof selective leakage protection device for mining proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of a combined flameproof selective leakage protection device for mining proposed by the utility model;

[0022] Figure 4 This is a schematic diagram of the anti-slip pad structure of a combined flameproof selective leakage protection device for mining proposed by the utility model;

[0023] Figure 5 The utility model is a front structural schematic diagram of a combined flameproof selective leakage protection device for mining.

[0024] In the figure: 1. Support shell; 101. Explosion-proof box; 2. Support block; 3. Rotating rod; 4. Support connecting plate; 5. Anti-skid pad; 6. Snap-on frame; 7. Display board; 8. Line display light; 9. Connecting frame; 10. Fastening bolt; 11. Connecting support plate; 12. Signal connecting plate; 13. Line detection connecting plate; 14. Serial port; 15. Ethernet connecting port; 16. Indicator light; 17. Line connecting port. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Example 1

[0028] A combined flameproof selective leakage protection device for mining, such as Figure 1-Figure 5As shown, it includes an explosion-proof box 101 and a support shell 1 installed inside the explosion-proof box 101, and a support block 2 fixedly arranged on one side of the support shell 1, there are at least four support blocks 2, a rotating rod 3 is rotatably arranged on one side of the support block 2, a support connecting plate 4 is fixedly connected to the outer side of the rotating rod 3, a non-slip pad 5 is fixedly connected to one side of the support connecting plate 4, the non-slip pad 5 is clamped and connected to a clamping frame 6, and the clamping frame 6 is fixedly connected to the support shell 1. When the device is running, by placing the support shell 1 on the ground under the support of multiple support blocks 2, multiple support blocks 2 and the clamping frame 6 will contact the ground at the same time, providing a certain height support for the support shell 1, so as to avoid direct contact with the ground. The four anti-skid pads 5 are connected to the ground by the support rod 3, and the four anti-skid pads 5 are moved to directly contact the ground, so as to increase the height of the support shell 1 when in use, and ensure the stability of the device during operation under the anti-skid and simultaneous action of the four anti-skid pads 5. Therefore, the support shell 1 can be fixedly supported and used according to the actual ground conditions during use, so as to ensure the stability and reliability of the device when connected to the zero-sequence current for detection, and timely detect whether the detected component is leaking.

[0029] like Figure 1-Figure 5 As shown, a display panel 7 is fixedly connected to one side of the supporting shell 1, and a plurality of line display lights 8 are fixedly connected to one side of the display panel 7. Connecting frames 9 are fixedly connected to the corresponding two sides of the supporting shell 1. The display panel 7 is located between the two connecting frames 9. The display panel 7 and the supporting shell 1 are both plugged with a plurality of fastening bolts 10. Through the connection of a plurality of fastening bolts 10, the connection between the display panel 7 and the supporting shell 1 and other components is stable. Under the support of the connecting frames 9 on both sides, the stability of the connection of the device as a whole is guaranteed when it is used, and the multi-directional stability is improved. At the same time, through the indication of a plurality of line display lights 8 on one side of the display panel 7, it can be ensured that the device can judge the faulty line according to the actual situation, thereby improving the efficiency of the maintenance system.

[0030] like Figure 1-Figure 5 As shown, a connecting support plate 11 is fixedly connected to one side of the supporting shell 1, and a signal connecting plate 12 and a line detection connecting plate 13 are fixedly connected to one side of the connecting support plate 11. By setting the signal connecting plate 12 and the line detection connecting plate 13 on one side of the supporting shell 1, data transmission and connection methods of multiple lines can be provided for the device during operation, thereby ensuring the stability and reliability of the device during operation.

[0031] Example 2

[0032] A combined flameproof selective leakage protection device for mining, such as Figure 1-Figure 5As shown, a serial port 14 and an Ethernet connection port 15 are provided on one side of the signal connection board 12, and there are at least two Ethernet connection ports 15. An indicator light 16 is fixedly provided on one side of the Ethernet connection port 15, and the indicator light 16 is fixedly connected to the signal connection board 12. Through the serial port 14 provided on one side of the signal connection board 12, two-way communication can be achieved, and telephone lines can be used, thereby greatly reducing costs. With the support of the two Ethernet connection ports 15, the stability of the network data connection is guaranteed, and the alarm information is transmitted to the on-duty computer or mobile phone through the network cable to communicate with the background computer or mobile phone public account. At the same time, the alarm and normal operation status can be observed in time under the display of the two indicator lights 16, thereby ensuring the overall stability of the device when working.

[0033] like Figure 1-Figure 5 As shown, a line connection port 17 is fixedly connected to one side of the line detection connection plate 13, and there are several line connection ports 17. By connecting multiple line connection ports 17 on one side of the serial port 14 to the outer line, it is ensured that the device can detect the outer line in time, and with the support of multiple line connection ports 17, the device can effectively detect multiple lines at the same time.

[0034] Working principle: by placing the support shell 1 on the ground with the support of multiple support blocks 2, multiple support blocks 2 and the clamping frame 6 will contact the ground at the same time, providing a certain height support for the support shell 1 to avoid direct contact with the ground, thereby achieving the effect of moisture-proofing and fixed support for the support shell 1, and at the same time, the anti-slip pad 5 is used to rotate under the support of the rotating rod 3, and the four anti-slip pads 5 are moved to directly contact the ground through the connection between the support connecting plate 4 and the support block 2 and the length of the support connecting plate 4 itself, which can increase the height of the overall device when in use, and ensure the stability of the device during operation under the anti-slip and simultaneous action of the four anti-slip pads 5 themselves, so that the support shell 1 can be fixedly supported and used according to the actual ground conditions during use, ensuring the stability and reliability of the device when connected to the zero-sequence current for detection, and timely detecting whether the detected component is leaking.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined flameproof selective leakage protection device for mining, comprising an explosion-proof box (101), a supporting shell (1) installed inside the explosion-proof box (101), and a supporting block (2) fixedly arranged on one side of the supporting shell (1), characterized in that: There are at least four support blocks (2), one side of the support block (2) is rotatably provided with a rotating rod (3), the outer side of the rotating rod (3) is fixedly connected to a support connecting plate (4), one side of the support connecting plate (4) is fixedly connected to an anti-skid pad (5), the anti-skid pad (5) is clamped and connected to a clamping frame (6), and the clamping frame (6) is fixedly connected to the support shell (1).

2. A combined flameproof selective leakage protection device for mining according to claim 1, characterized in that: A display panel (7) is fixedly connected to one side of the supporting shell (1), and a plurality of line display lights (8) are fixedly connected to one side of the display panel (7).

3. A combined flameproof selective leakage protection device for mining according to claim 2, characterized in that: The supporting shell (1) is fixedly connected with connecting frames (9) on two corresponding sides, the display panel (7) is located between the two connecting frames (9), and the display panel (7) and the supporting shell (1) are both plugged with a plurality of fastening bolts (10).

4. A combined flameproof selective leakage protection device for mining according to claim 1, characterized in that: A connection support plate (11) is fixedly connected to one side of the support shell (1), and a signal connection plate (12) and a line detection connection plate (13) are fixedly connected to one side of the connection support plate (11).

5. A combined flameproof selective leakage protection device for mining according to claim 4, characterized in that: A serial port (14) and an Ethernet connection port (15) are provided on one side of the signal connection board (12), and there are at least two Ethernet connection ports (15).

6. A combined flameproof selective leakage protection device for mining according to claim 5, characterized in that: An indicator light (16) is fixedly arranged on one side of the Ethernet connection port (15), and the indicator light (16) is fixedly connected to the signal connection board (12).

7. A combined flameproof selective leakage protection device for mining according to claim 4, characterized in that: One side of the line detection connection plate (13) is fixedly connected with a line connection port (17), and there are a plurality of line connection ports (17).

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