Explosion-proof lead-acid storage battery power supply device for coal mine local ventilator

Abstract

The explosion-proof lead-acid storage battery power supply device comprises a box body, the upper surface of the box body is open, a plurality of insulating plates are arranged in the box body in the length direction and the width direction of the box body, and installation cavities are defined by the adjacent insulating plates in the length direction and the width direction. A lead-acid storage battery is placed in the mounting cavity; two upper covers are symmetrically arranged on the upper surface of the box body, long connecting rods and short connecting rods are movably arranged between the side faces of the upper covers in the width direction and the side faces of the box body in the width direction, and one ends of the long connecting rods and the short connecting rods are rotationally connected with the upper covers. According to the utility model, the lead-acid storage batteries are installed in the box body, when power is supplied to the outside, the lead-acid storage batteries are isolated from external methane, the safety is higher, in the power supply process, when the methane concentration is increased, the positive electrode plug pin connector and the negative electrode plug pin connector continue to keep the output state, the whole control process is more intelligent, and the device can be popularized and used in underground operation of a coal mine.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine ventilators, in particular to an explosion-proof lead-acid battery power supply device for a local ventilator in a coal mine. Background Art

[0002] During the coal mining process, gas is generated, and fans are needed to blow the gas out to prevent gas from accumulating and causing excessive concentration to cause explosions and other serious accidents. Fans need to be driven by AC or DC power. During use, the fans are generally placed at the location where gas gathers, which requires the battery power supply to be able to move flexibly with the location of the fan. The working power supply of the fan is generally 220 volts, and the existing lead-acid batteries need to be connected in series to output the working voltage required by the fan; and if the series connection points between multiple lead-acid batteries are in contact with the air, during the power-on process, the gas in the air will directly explode and cause a major accident; and before the fan works, the coal miners have no way of knowing the gas concentration at the gas gathering location. If multiple lead-acid batteries are rashly connected in series to power the fan, there will undoubtedly be a very large safety hazard.

[0003] In view of the above situation, the present utility model is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide an explosion-proof lead-acid battery power supply device for a local ventilator in a coal mine, so as to solve the problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions.

[0006] The utility model provides an explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine, comprising a box body, the upper surface of the box body is open, a plurality of insulating plates are arranged inside the box body along the length direction and the width direction of the box body, and an installation cavity is formed between adjacent insulating plates in the length direction and the width direction, and a lead-acid battery is placed in the installation cavity;

[0007] Two upper covers are symmetrically arranged on the upper surface of the box body, and a long connecting rod and a short connecting rod are movably arranged between the side surfaces of the upper covers in the width direction and the side surfaces of the box body in the width direction, one end of the long connecting rod and the short connecting rod are both rotatably connected to the upper covers, and the other ends of the long connecting rod and the short connecting rod are both rotatably connected to the box body, and a middle seam connecting plate is arranged in the middle of the upper surface of the box body, and the middle seam connecting plate is parallel to the length direction of the box body, and the long connecting rod is located between the short connecting rod and the middle seam connecting plate;

[0008] An industrial control liquid crystal display screen and a methane concentration sensor are arranged on the front side of the box body, and the signal of the methane concentration sensor is connected to the industrial control liquid crystal display screen.

[0009] Preferably, an explosion-proof control box is also provided in the box body, the positive and negative lead wires of the lead-acid battery are located in the explosion-proof control box, the outer side of the explosion-proof control box is provided with terminals, the positive and negative lead wires of the lead-acid battery are connected to the terminals through wires, and a positive plug connector and a negative plug connector are also provided on the front of the box body, and the two terminals are respectively connected to the positive plug connector and the negative plug connector through wires.

[0010] Preferably, it also includes a box wiring port cover plate, which is detachably mounted on the front side of the box by bolts, and the positive electrode plug connector and the negative electrode plug connector are mounted on the box wiring port cover plate.

[0011] Preferably, a relay is provided on the wire between the positive and negative lead wires of the lead-acid battery and the terminal, and the industrial control LCD screen controls the connection relay.

[0012] Preferably, a plurality of handles are evenly arranged on the upper surface of the upper cover at equal intervals along the length direction of the upper cover, and the handles are arranged in two rows, and the two rows of handles are symmetrically distributed with the center seam plate as the center axis.

[0013] Preferably, the left and right sides of the box body are symmetrically provided with hanging rings.

[0014] Preferably, an emergency stop button is also provided on the front of the box, and the emergency stop button circuit is connected to the wires between the terminal and the positive plug connector and the negative plug connector.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] Multiple lead-acid batteries are installed in the box. When supplying power to the outside, they are isolated from external methane, which is safer. When in use, the entire device can be moved to the location of the ventilator. The methane concentration sensor can detect the methane concentration in the environment in real time. The industrial control LCD display can perform self-test. When the methane concentration is too high and exceeds the safety standard, the relay is disconnected, and the positive and negative plug connectors have no output; when the industrial control LCD display is turned on for self-test, when the methane concentration is within the safe range, the positive and negative plug connectors have output. The power cord of the ventilator can be connected to the positive and negative plug connectors. During the power supply process, when the methane concentration rises, the positive and negative plug connectors continue to maintain the output state. The entire control process is relatively intelligent and can be promoted for use in underground coal mine operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the box body of the utility model;

[0018] Figure 2 It is a top view of the box body of the utility model;

[0019] Figure 3 It is a left side view of the box body of the utility model;

[0020] Figure 4 It is a front view of the box body of the utility model.

[0021] In the figure: 1. Box body; 2. Methane concentration sensor; 3. Upper cover; 31. Handle; 4. Long connecting rod; 5. Short connecting rod; 6. Positive plug connector; 7. Negative plug connector; 8. Lead-acid battery; 9. Insulating plate; 10. Center seam plate; 11. Box body wiring port cover; 12. LCD display; 13. Emergency stop button; 14. Explosion-proof control box; 15. Terminal block. DETAILED DESCRIPTION

[0022] 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.

[0023] 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.

[0024] like Figure 1-4 As shown, an explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine comprises a box body 1, the upper surface of the box body 1 is open, a plurality of insulating plates 9 are arranged inside the box body 1 along the length direction and the width direction of the box body 1, and an installation cavity is formed between adjacent insulating plates 9 in the length direction and the width direction, and a lead-acid battery 8 is placed in the installation cavity;

[0025] The insulating plate 9 separates the lead-acid battery 8, which is beneficial to the heat dissipation of the lead-acid battery 8 and makes the lead-acid battery 8 safer.

[0026] Two upper covers 3 are symmetrically arranged on the upper surface of the box body 1, and a long connecting rod 4 and a short connecting rod 5 are movably arranged between the side surfaces in the width direction of the upper covers 3 and the side surfaces in the width direction of the box body 1, one end of the long connecting rod 4 and the short connecting rod 5 are both rotatably connected to the upper covers 3, and the other ends of the long connecting rod 5 and the short connecting rod 5 are both rotatably connected to the box body 1, and the two upper covers 3 can be rotated and opened through the long connecting rod 4 and the short connecting rod 5, and a middle seam connecting plate 10 is arranged in the middle of the upper surface of the box body 1, and the middle seam connecting plate 10 is parallel to the length direction of the box body 1, and the long connecting rod 4 is located between the short connecting rod 5 and the middle seam connecting plate 10;

[0027] When the two upper covers 3 are closed, the edges of the two upper covers 3 are located below the middle seam connecting plate 10 , and the middle seam connecting plate 10 covers the gap between the two upper covers 3 .

[0028] An industrial control LCD screen 12 and a methane concentration sensor 2 are provided on the front of the box 1. The signal of the methane concentration sensor 2 is connected to the industrial control LCD screen 12. When the methane concentration sensor 2 detects that the methane concentration in the environment is too high, the industrial control LCD screen 12 controls the lead-acid battery 8 to be unable to supply power to the positive plug connector 6 and the negative plug connector 7.

[0029] An explosion-proof control box 14 is also provided in the box body 1. The positive and negative lead wires of the lead-acid battery 8 are located in the explosion-proof control box 14. The outer side of the explosion-proof control box 14 is provided with a terminal 15. The positive and negative lead wires of the lead-acid battery 8 are connected to the terminal 15 through a wire. A positive plug connector 6 and a negative plug connector 7 are also provided on the front of the box body 1. The two terminals 15 are connected to the positive plug connector 6 and the negative plug connector 7 through wires, that is, the positive and negative lead wires of the lead-acid battery 8 are connected to the positive plug connector 6 and the negative plug connector 7, respectively.

[0030] It also includes a box wiring port cover 11, which is detachably mounted on the front of the box 1 by bolts, and the positive plug connector 6 and the negative plug connector 7 are mounted on the box wiring port cover 11. By removing the box wiring port cover 11, it is convenient to inspect the positive plug connector 6 and the negative plug connector 7.

[0031] A relay is provided on the wire between the positive and negative lead wires of the lead-acid battery 8 and the terminal 15, and the industrial control LCD display 12 controls the connection relay, that is, when the methane concentration sensor 2 detects that the methane concentration in the environment is too high, the industrial control LCD display 12 controls the relay to be in an open circuit state.

[0032] The upper surface of the upper cover 3 is evenly and evenly provided with a plurality of handles 31 along the length direction of the upper cover 3. There are two rows of handles 31, and the two rows of handles 31 are symmetrically distributed with the center seam connecting plate 10 as the center axis. By holding the handle 31, the two upper covers 3 can be opened through the supporting and rotating action of the short connecting rod 5 and the long connecting rod 4.

[0033] The left and right sides of the box body 1 are symmetrically provided with lifting rings 16, through which the entire box body 1 can be lifted and moved to different positions.

[0034] An emergency stop button 13 is also provided on the front of the box body 1. The circuit of the emergency stop button 13 is connected to the wire between the terminal 15 and the positive plug connector 6 and the negative plug connector 7. When the emergency stop button 13 is pressed, the positive plug connector 6 and the negative plug connector 7 are in an open circuit state and cannot supply power to the outside world.

[0035] In summary: multiple lead-acid batteries 8 are installed in the box 1. When supplying power to the outside, they are isolated from external methane, which is safer. When in use, the entire device can be moved to the location of the ventilator. The methane concentration sensor 2 can detect the methane concentration in the environment in real time. The industrial control LCD display 12 can perform self-checking. When the methane concentration is too high and exceeds the safety standard, the relay is disconnected, and the positive plug connector 6 and the negative plug connector 7 have no output;

[0036] When the industrial control LCD display 12 is turned on for self-check and the methane concentration is within a safe range, the positive plug connector 6 and the negative plug connector 7 have outputs, and the power cord of the ventilator can be connected to the positive plug connector 6 and the negative plug connector 7. During the power supply process, when the methane concentration rises, the positive plug connector 6 and the negative plug connector 7 continue to maintain the output state.

[0037] 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. An explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine, characterized in that: The invention comprises a box body (1), wherein the upper surface of the box body (1) is open, and a plurality of insulating plates (9) are arranged inside the box body (1) along the length direction and the width direction of the box body (1), and an installation cavity is formed between adjacent insulating plates (9) in the length direction and the width direction, and a lead-acid storage battery (8) is placed in the installation cavity; Two upper covers (3) are symmetrically arranged on the upper surface of the box body (1); a long connecting rod (4) and a short connecting rod (5) are movably arranged between the side surfaces of the upper covers (3) in the width direction and the side surfaces of the box body (1) in the width direction; one end of the long connecting rod (4) and the short connecting rod (5) are both rotatably connected to the upper covers (3); the other ends of the long connecting rod (4) and the short connecting rod (5) are both rotatably connected to the box body (1); a center seam connecting plate (10) is arranged in the middle of the upper surface of the box body (1); the center seam connecting plate (10) is parallel to the length direction of the box body (1); and the long connecting rod (4) is located between the short connecting rod (5) and the center seam connecting plate (10); An industrial control liquid crystal display screen (12) and a methane concentration sensor (2) are arranged on the front of the box body (1), and a signal of the methane concentration sensor (2) is connected to the industrial control liquid crystal display screen (12).

2. The explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine according to claim 1, characterized in that: An explosion-proof control box (14) is also provided in the box body (1), the positive and negative lead wires of the lead-acid battery (8) are located in the explosion-proof control box (14), the outer side of the explosion-proof control box (14) is provided with a terminal (15), the positive and negative lead wires of the lead-acid battery (8) are connected to the terminal (15) through a wire, and a positive plug connector (6) and a negative plug connector (7) are also provided on the front of the box body (1), and the two terminal (15) are connected to the positive plug connector (6) and the negative plug connector (7) respectively through wires.

3. The explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine according to claim 2, characterized in that: It also comprises a box wiring port cover plate (11), the box wiring port cover plate (11) being detachably mounted on the front face of the box (1) by means of bolts, and the positive electrode plug connector (6) and the negative electrode plug connector (7) being mounted on the box wiring port cover plate (11).

4. The explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine according to claim 2, characterized in that: A relay is provided on the wire between the positive and negative lead wires of the lead-acid battery (8) and the terminal (15), and the industrial control liquid crystal display (12) controls the connection relay.

5. The explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine according to claim 1, characterized in that: The upper surface of the upper cover (3) is evenly and evenly provided with a plurality of handles (31) at equal intervals along the length direction of the upper cover (3), and the handles (31) are arranged in two rows, and the two rows of handles (31) are symmetrically distributed with the middle seam connecting plate (10) as the central axis.

6. The explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine according to claim 1, characterized in that: The left side and right side of the box body (1) are also symmetrically provided with hanging rings (16).

7. The explosion-proof lead-acid battery power supply device for a local ventilation fan in a coal mine according to claim 2, characterized in that: An emergency stop button (13) is also provided on the front of the box body (1), and the circuit of the emergency stop button (13) is connected to the wire between the terminal (15) and the positive plug connector (6) and the negative plug connector (7).

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