Moisture-proof early warning device for electric cabinet of coal mining machine

Abstract

The utility model discloses a moisture-proof early warning device for an electric control box of a coal mining machine, which belongs to the technical field of electric control boxes and comprises a box body, and a humidity sensor is mounted in the box body. The moisture-proof mechanism comprises ventilation windows, the two ventilation windows are installed on the two sides of the box body in a one-to-one correspondence mode, an exhaust fan set is installed on the side, close to the interior of the box body, of each ventilation window, the exhaust fan set comprises two working ends, one working end points to the adjacent ventilation window, and the other working end points to the interior of the box body. According to the utility model, the moisture-proof mechanism is arranged, and two exhaust fan groups in the moisture-proof mechanism work, so that in the process of replacing high-humidity air in the box body with external air, on one hand, the air entering the box body is dehumidified through a water-absorbing cotton strip on one side, and on the other hand, the water-absorbing cotton strip on the other side is extruded and drained; therefore, the water absorption effect of the water absorption cotton strips is kept in the forward and reverse ventilation working process of the two exhaust fan sets.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric control box technical field especially relates to coal winning machine electric control box dampproof early warning device. BACKGROUND

[0002] Coal winning machine is in the process of excavating and mining underground coal mine, usually needs to equip electric control box for coal winning machine and other large -scale machinery, through electric control box controls, measures, signal, protection and adjustment to various electric equipment. But in the underground coal mine, electric control box is in the environment of rather dark and humid, its inside can easily appear to be damped, thereby influence electric control box inside electrical component's working state, even make it damage, influence electric control box's normal work.

[0003] In prior art, adopt exhaust fan to draw the outside air through detachable water absorbing cotton into electric control box, and discharge outside, in this kind of mode, cannot keep the water absorbing effect of water absorbing cotton in the ventilation process, reduces dampproof dehumidification effect, and needs staff to frequently replace water absorbing cotton, increases the work burden of staff. UTILITY MODEL CONTENTS

[0004] The utility model discloses a coal winning machine electric control box dampproof early warning device to solve the problem that the water absorbing effect of water absorbing cotton cannot be kept in the ventilation process in the traditional technology, the dampproof dehumidification effect is reduced, and the staff needs to frequently replace the water absorbing cotton, which increases the work burden of the staff.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The coal winning machine electric control box dampproof early warning device includes:

[0007] The box body is internally installed with a humidity sensor.

[0008] The dampproof mechanism includes ventilation windows, two ventilation windows are one-to-one correspondingly installed on both sides of the box body, an exhaust fan group is installed on the side close to the inside of the box body, the exhaust fan group includes two working ends, one working end points to the adjacent ventilation window, and the other working end points to the inside of the box body, water absorbing cotton strips are fixedly connected in the ventilation windows, a plurality of separation strips are slidingly connected, a plurality of return springs are fixedly connected between the plurality of separation strips and the ventilation windows, the bottoms of the plurality of separation strips are one-to-one correspondingly abutted on the tops of the plurality of water absorbing cotton strips, wing plates are fixedly connected on the side close to the exhaust fan group of the separation strips, the wing plates are in an inclined state, and the end close to the exhaust fan group is inclined upward, outer net frames are fixedly connected outside the ventilation windows, and drainage grooves are communicated at the bottoms.

[0009] The alarm is installed in the box body, the controller is installed in the box body, and the controller is electrically connected with the humidity sensor, the exhaust fan group and the alarm.

[0010] Preferably, the exhaust fan group is composed of multiple bidirectional ventilation fans, and the two exhaust fan groups work in the same air inlet direction.

[0011] Preferably, multiple sliding grooves are arranged on the two sides of the ventilation window, and the two ends of the multiple partition strips are slidably connected in the multiple sliding grooves.

[0012] Preferably, a groove is arranged on the top of the wing plate, and drainage grooves are arranged on the two sides of the ventilation window.

[0013] Preferably, the bottom of the drainage groove is communicated with a drain pipe, one end of the drain pipe away from the drainage groove is sealed and penetrates the box body, and the drain pipe is communicated with the outside.

[0014] Preferably, the controller is used for receiving signals of the humidity sensor and controlling working states of the exhaust fan group, the drain valve and the alarm.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1、The utility model discloses a moisture-proof mechanism is arranged, and two exhaust fan groups in the moisture-proof mechanism work.

[0017] 2、The utility model discloses a wing plate is arranged on one end of the exhaust fan group, and the wing plate is inclined upward. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structure schematic view of the utility model;

[0019] Figure 2 It is a structure schematic view of the utility model in vertical section state;

[0020] Figure 3 It is a structure schematic view of the utility model in another direction vertical section state;

[0021] Figure 4 It is a structure schematic view of the position where the part of the partition strip ends.

[0022] In the figure: 1 box, 2 humidity sensor, 3 ventilation window, 4 exhaust fan group, 5 water absorbing cotton strip, 6 partition strip, 7 sliding groove, 8 reset spring, 9 wing plate, 10 recess, 11 outer net frame, 12 drainage groove, 13 drainage groove, 14 drain pipe, 15 drain valve, 16 alarm. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0024] Referring to Figures 1-4 , the moisture-proof early warning device of the electric control box of the coal mining machine comprises:

[0025] The box 1 is internally provided with a humidity sensor 2.

[0026] The moisture-proof mechanism comprises ventilation windows 3, two ventilation windows 3 are correspondingly installed on the two sides of the box 1, the ventilation windows 3 are internally provided with an exhaust fan group 4 close to one side of the box 1, the exhaust fan group 4 comprises two working ends, one working end is directed to the adjacent ventilation window 3, and the other working end is directed to the inside of the box 1, the ventilation windows 3 are fixedly connected with water absorbing cotton strips 5, and a plurality of partition strips 6 are slidingly connected, a plurality of reset springs 8 are fixedly connected between the plurality of partition strips 6 and the ventilation windows 3, the bottom of the plurality of reset springs 8 is correspondingly abutted on the top of the plurality of water absorbing cotton strips 5, the partition strips 6 are fixedly connected with wing plates 9 close to one side of the exhaust fan group 4, the wing plates 9 are in an inclined state, and one end of the wing plates 9 close to the exhaust fan group 4 is inclined upward, the outer side of the ventilation windows 3 is fixedly connected with an outer net frame 11, and the bottom of the outer net frame 11 is communicated with a drainage groove 13.

[0027] The water absorbing cotton strip 5 comprises a hard base and a soft water absorbing cotton, the hard base is fixed on the ventilation window 3, and the soft water absorbing cotton is fixed on the bottom of the hard base, so that the soft water absorbing cotton can be conveniently compressed from bottom to top.

[0028] The alarm 16 is installed in the box 1, and a controller is installed in the box 1 and electrically connected with the humidity sensor 2, the exhaust fan group 4 and the alarm 16.

[0029] The exhaust fan group 4 is composed of multiple bidirectional ventilation fans, and two exhaust fan groups 4 work in the same air inlet direction.

[0030] Multiple sliding grooves 7 are formed in the two sides of the ventilation window 3, and multiple partition strips 6 are slidably connected in the multiple sliding grooves 7 in a one-to-one manner, and a reset spring 8 is fixedly connected to the top of the sliding groove 7 away from one end of the partition strip 6.

[0031] A groove 10 is formed in the top of the wing plate 9, and a drainage groove 12 is formed in the two sides of the ventilation window 3, the top of the drainage groove 12 is communicated with the groove 10, the middle part is communicated with the multiple sliding grooves 7, and the bottom is communicated with a drainage groove 13.

[0032] The drainage groove 13 is communicated with a drainage pipe 14, the drainage pipe 14 is sealed and penetrates the box 1 away from the drainage groove 13 and is communicated with the outside, and a drainage valve 15 is installed on the drainage pipe 14, the drainage valve 15 is an electromagnetic valve and is electrically connected with the controller.

[0033] The controller is used for receiving the signal of the humidity sensor 2 and controlling the working state of the exhaust fan group 4, the drainage valve 15 and the alarm 16.

[0034] The operation principle of the utility model will be described as follows:

[0035] When working, the electric control equipment in the box 1 assists the work of the coal mining machine, is located in the underground coal mine, and the box 1 is easily damp;

[0036] The humidity sensor 2 works in real time, and the humidity in the box 1 is monitored, when the humidity in the box 1 reaches the upper limit threshold, the controller receives the signal of the humidity sensor 2, and controls two exhaust fan groups 4 to work.

[0037] The two exhaust fan groups 4 work, one exhaust fan group 4 draws the outside air into the box 1, and the other exhaust fan group 4 draws the air in the box 1 out and discharges it into the outside from the other side, in the process that the outside air enters the box 1, the outside air first passes through the water absorbing sponge strip 5 between the multiple partition strips 6 and is absorbed by the water absorbing sponge strip 5, so that the water in the air is effectively reduced when the air enters the box 1, at this time, the air passes through the water absorbing sponge strip 5 and enters the box 1 through the wing plate 9, so that the humidity in the box 1 is reduced when the air in the box 1 is replaced, and the electric control equipment in the box 1 is protected;

[0038] When the other group of exhaust fans 4 works, the air with high humidity in the box 1 is exhausted to the corresponding ventilation window 3, and first blows on the wing plate 9, and under the action of the upward component force of the wind along the wing plate 9, the wing plate 9 is moved upward to overcome the reset spring 8, the upward movement of the wing plate 9 forms a squeezing effect on the water absorbing cotton strip 5 above the wing plate 9, thereby exposing the ventilation port and improving the exhaust effect, and at the same time, the water in the water absorbing cotton strip 5 is squeezed out and flows into the groove 10 on the wing plate 9, and finally flows into the drainage groove 13 along the drainage groove 12, and the drainage valve 15 is controlled to be opened to drain the water;

[0039] The two groups of exhaust fans 4 can periodically change the ventilation direction under the control of the controller, so that the water absorbing cotton strips 5 in the two ventilation windows 3 are squeezed and drained, the water absorbing effect of the water absorbing cotton strips 5 is maintained, and the working period of the moisture-proof mechanism is improved.

[0040] During the working process of the moisture-proof mechanism, the humidity in the box 1 still exceeds the upper threshold value and remains for a certain period of time, at which time the controller controls the alarm 16 to work and issues an alarm to remind the staff.

[0041] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A moisture-proof early warning device for the electrical control box of a coal mining machine, characterized in that, include: Box (1), a humidity sensor (2) is installed inside the box (1); The moisture-proof mechanism includes ventilation windows (3), two ventilation windows (3) are installed one-to-one on both sides of the box body (1), and an exhaust fan group (4) is installed on the side of the ventilation window (3) near the inside of the box body (1). The exhaust fan group (4) includes two working ends, one working end pointing to the adjacent ventilation window (3) and the other working end pointing to the inside of the box body (1). A bottom compressible absorbent strip (5) is fixedly connected inside the ventilation window (3), and multiple partition strips (6) are slidably connected. Multiple reset springs (8) are fixedly connected between the multiple partition strips (6) and the ventilation window (3), and the bottom of each partition strip (6) abuts against the top of the multiple absorbent strips (5). A wing plate (9) is fixedly connected on the side of the partition strip (6) near the exhaust fan group (4). The wing plate (9) is in an inclined state, and the end near the exhaust fan group (4) is inclined upward. An outer mesh frame (11) is fixedly connected to the outside of the ventilation window (3), and a drainage groove (13) is connected to the bottom. An alarm (16) is installed inside a housing (1). A controller is installed inside the housing (1). The controller is electrically connected to the humidity sensor (2), the exhaust fan assembly (4), and the alarm (16).

2. The moisture-proof early warning device for the coal mining machine electrical control box according to claim 1, characterized in that, in: The exhaust fan group (4) consists of multiple fans capable of bidirectional ventilation, and the two exhaust fan groups (4) operate in the same air delivery direction.

3. The moisture-proof early warning device for the coal mining machine electrical control box according to claim 1, characterized in that, in: Multiple sliding grooves (7) are provided on both sides of the ventilation window (3). The two ends of the multiple partition strips (6) are slidably connected in the multiple sliding grooves (7). The end of the reset spring (8) away from the partition strip (6) is fixedly connected to the top of the sliding groove (7). The top of the sliding groove (7) is flush with the top of the corresponding absorbent strip (5).

4. The moisture-proof early warning device for the coal mining machine electrical control box according to claim 3, characterized in that, in: The top of the wing plate (9) is provided with a groove (10), and the ventilation window (3) is provided with a drainage groove (12) on both sides. The top of the drainage groove (12) is connected to the groove (10), the middle part is connected to multiple sliding grooves (7), and the bottom is connected to the drainage groove (13).

5. The moisture-proof early warning device for the coal mining machine electrical control box according to claim 1, characterized in that, in: The bottom of the drainage trough (13) is connected to a drainage pipe (14). The end of the drainage pipe (14) away from the drainage trough (13) is sealed and passes through the box body (1) and is connected to the outside. A drainage valve (15) is installed on the drainage pipe (14). The drainage valve (15) is a solenoid valve and is electrically connected to the controller.

6. The moisture-proof early warning device for the coal mining machine electrical control box according to claim 5, characterized in that, in: The controller is used to receive signals from the humidity sensor (2) and control the working status of the exhaust fan assembly (4), the drain valve (15) and the alarm (16).

Images