Coal mine underground broadcast terminal

Abstract

The utility model relates to the technical field of audio playing equipment, and discloses a coal mine underground broadcasting terminal, which comprises a case, a front cover movably mounted on the front side of the case, a demodulator fixedly mounted in the front cover, an audio playing port arranged on the front cover below the demodulator, an interphone movably mounted on one side of the case, and a wireless communication module fixedly mounted on the interphone. The demodulator and the interphone are electrically connected with the main control board in the case through connecting wires respectively, a mounting beam is fixedly mounted in the case, a loudspeaker is fixedly mounted on the front side of the mounting beam, the loudspeaker is also electrically connected with the main control board in the case through a connecting wire, and a sealing mechanism is arranged on the mounting beam located on one side of the loudspeaker. The audio playing port is formed in the front side of the machine box, sound emitted by the loudspeaker can be transmitted into the mine through the audio playing port, the sealing mechanism is further arranged in the machine box and composed of an installation base, a motor, a supporting rod, a sealing plate and the like, and when audios are played, the audio playing port can be opened through the sealing plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to audio frequency playing equipment technical field, especially in coal mine underground broadcast terminal. BACKGROUND

[0002] The mine broadcast terminal is a broadcast equipment used in underground working environment such as coal mine, and the broadcast terminal usually has a specific IP address, supports remote management and control, and the ground management center can remotely control and manage each terminal, realizes partition or combined broadcast, and ensures that different broadcast contents are played in different areas.

[0003] When the mine broadcast terminal is used in the mine, the sound hole is arranged in the front side of the installation position of the loudspeaker to make the sound emitted by the loudspeaker pass through the cabinet and be transmitted to the mine, but since the working environment in the mine such as coal mine is relatively poor, a large amount of dust will enter the cabinet, so that the heat dissipation of the equipment in the cabinet is abnormal, and the dust screen is arranged at the sound hole position of the cabinet of part of the mine broadcast terminal, although the dust screen can prevent the dust in the mine from entering the cabinet to a certain extent, but since the air in the mine is relatively humid, the dust will accumulate on the dust screen, so that the dust screen is blocked, and then the sound penetration rate is reduced, which affects the normal playing of the mine broadcast terminal. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a coal mine underground broadcast terminal, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that

[0006] A coal mine underground broadcast terminal, comprising a cabinet, a front cover movably installed on the front side of the cabinet, a moderator fixedly installed in the front cover, an audio playing port arranged in the front cover below the moderator, a walkie-talkie movably installed on one side of the cabinet, and the moderator and the walkie-talkie are electrically connected with a main control board in the cabinet through connecting lines, a mounting beam fixedly installed in the cabinet, a loudspeaker fixedly installed on the front side of the mounting beam, and the loudspeaker is also electrically connected with the main control board in the cabinet through the connecting line, a sealing mechanism arranged on one side of the mounting beam, the sealing mechanism comprising a mounting seat, a motor, a supporting rod and a sealing plate, the sealing plate being movably installed on the top of the supporting rod, the supporting rod being movably installed on the front side of the mounting seat, the motor being fixedly installed on one side of the mounting seat, and the mounting seat being fixedly installed on the front side of the mounting beam.

[0007] As a further preferred scheme of the utility model, the rear side of the mounting base is fixedly installed with a side plate, the front side of the mounting base is provided with a first connecting groove, and the side plate is fixedly installed on the front side of the mounting beam.

[0008] As a further preferred scheme of the utility model, the side of the mounting base is fixedly installed with a rack, the side of the motor is fixedly installed on the side of the rack, and the output end of the motor is fixedly installed with a driving gear through the rack.

[0009] Therefore, the motor and the driving gear can provide a power source for the rotation of the supporting rod.

[0010] As a further preferred scheme of the utility model, the top of the supporting rod is provided with a second connecting groove, a third fixing shaft is fixedly installed in the second connecting groove, and the third fixing shaft in the second connecting groove is sleeved with a torsional spring.

[0011] As a further preferred scheme of the utility model, the bottom of the supporting rod is fixedly installed with a connecting rod, the bottom of the connecting rod is fixedly installed with a first fixing shaft, the bottom of the connecting rod is rotatably installed in the first connecting groove through the first fixing shaft, the side of the first fixing shaft is further fixedly installed with a second fixing shaft, a driven gear is fixedly installed on the second fixing shaft, and the driven gear is meshedly connected with the driving gear.

[0012] Therefore, the supporting rod is rotatably installed on the front side of the mounting base through the connecting rod and the first fixing shaft, and the driven gear is meshedly connected with the driving gear, so that the sealing plate can be opened and closed in the audio playing port by the supporting rod.

[0013] As a further preferred scheme of the utility model, the rear side of the sealing plate is fixedly installed with two connecting seats, and the sealing plate is rotatably installed on the third fixing shaft through the two connecting seats.

[0014] Therefore, the sealing plate can be installed in the audio playing port when not in use, so as to prevent external dust from entering the case.

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

[0016] The utility model relates to a coal mine underground broadcast terminal, audio frequency play mouth is set up at the front side of the case, can make the sound of loudspeaker pass through audio frequency play mouth and deliver to the mine, and still set up sealing mechanism in the case, and sealing mechanism is by mounting seat, motor, support rod, sealing plate and so on component composition, can open audio frequency play mouth through sealing plate when playing audio, when not using, can make sealing plate wear in audio frequency play mouth and play the sealing effect, prevent dust from entering the case, can guarantee each time use, and the audio of loudspeaker can effectively deliver to each area in the mine. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the main body structure schematic drawing of the utility model;

[0018] Figure 2 It is sealing mechanism installation structure schematic drawing of the utility model;

[0019] Figure 3 It is sealing mechanism split structure schematic drawing of the utility model;

[0020] Figure 4 It is Figure 3 The enlarged view of A in the middle.

[0021] In the drawing: 1, case;2, front cover;3, adjuster;4, audio frequency play mouth;5, interphone;6, mounting beam;7, sealing mechanism;8, mounting seat;9, motor;10, support rod;11, sealing plate;12, side plate;13, first connecting groove;14, rack;15, driving gear;16, connecting rod;17, first fixed shaft;18, second fixed shaft;19, driven gear;20, second connecting groove;21, third fixed shaft;22, connecting seat;23, torsion spring;24, loudspeaker. DETAILED DESCRIPTION

[0022] In order to make the technical means, creation features, achieve purposes and effects of the utility model easy to understand, the following further elaborates the utility model in combination with specific implementation manners.

[0023] For example, Figures 1-4The utility model provides a kind of coal mine underground broadcast terminal, including case 1, front cover 2 is movably installed in the front side of case 1, reconciler 3 is fixedly installed in front cover 2, audio play opening 4 is opened in the front cover 2 of the position below reconciler 3, intercom 5 is movably installed in the side of case 1, and reconciler 3 and intercom 5 are electrically connected with main control board in case 1 respectively by connecting line, mounting beam 6 is fixedly installed in case 1, loudspeaker 24 is fixedly installed in the front side of mounting beam 6, loudspeaker 24 is also electrically connected with main control board in case 1 by connecting line, sealing mechanism 7 is provided in the mounting beam 6 of loudspeaker 24 side, sealing mechanism 7 includes mounting seat 8, motor 9, support rod 10 and sealing plate 11, sealing plate 11 is movably installed at the top of support rod 10, support rod 10 is movably installed at the front side of mounting seat 8, motor 9 is fixedly installed at the side of mounting seat 8, and mounting seat 8 is fixedly installed at the front side of mounting beam 6.

[0024] Side plate 12 is fixedly installed at the rear side of mounting seat 8, first connecting groove 13 is opened in the front side of mounting seat 8, side plate 12 is fixedly installed at the front side of mounting beam 6, rack 14 is fixedly installed at the side of mounting seat 8, motor 9 is fixedly installed at the side of rack 14, and the output end of motor 9 passes through rack 14 and is fixedly installed with driving gear 15, based on this, the rotation of support rod 10 can be powered by the setting of motor 9 and driving gear 15, second connecting groove 20 is opened at the top of support rod 10, third fixed shaft 21 is fixedly installed in second connecting groove 20, torsion spring 23 is sleeved on third fixed shaft 21 in second connecting groove 20, connecting rod 16 is fixedly installed at the bottom of support rod 10, first fixed shaft 17 is fixedly installed at the bottom of connecting rod 16, connecting rod 16 is rotatably installed in first connecting groove 13 by first fixed shaft 17 at the bottom, and second fixed shaft 18 is also fixedly installed at the side of first fixed shaft 17, driven gear 19 is fixedly installed on second fixed shaft 18, driven gear 19 is engagedly connected with driving gear 15, based on this, support rod 10 is rotatably installed at the front side of mounting seat 8 by connecting rod 16 and first fixed shaft 17, and driven gear 19 is engagedly connected with driving gear 15, support rod 10 can drive sealing plate 11 to open and close in audio play opening 4, two connecting seats 22 are fixedly installed at the rear side of sealing plate 11, sealing plate 11 is rotatably installed on third fixed shaft 21 by two connecting seats 22, based on this, by the cooperation of mounting seat 8, motor 9, support rod 10 and other components, sealing plate 11 can be installed in audio play opening 4 when not in use, to prevent external dust from entering case 1.

[0025] It should be noted that the utility model discloses a coal mine underground broadcast terminal, when playing audio through the loudspeaker 24, the main control board in the case 1 simultaneously starts the motor 9, then, the output end of the motor 9 drives the driving gear 15 to rotate, further makes the driving gear 15 and the motor 9 meshing connection and drives the motor 9 synchronous relative rotation, further makes the driven gear 19 through the second fixed shaft 18 and the first fixed shaft 17 drive connecting rod 16 to rotate, then, the support rod 10 rotates in the first connecting groove 13 with the first fixed shaft 17 as the axle, and makes the support rod 10 top through the third fixed shaft 21 and the connecting seat 22 drive sealing plate 11 to move out from the audio playing port 4 and place in the case 1, simultaneously, the sealing plate 11 top follows the support rod 10 and moves and contacts the adjuster 3 bottom in the case 1, thereby through the limiting of adjuster 3 makes the sealing plate 11 rotate on the third fixed shaft 21 with two connecting seats 22 as the axle and twists the torsion spring 23, can make the sealing plate 11 be inclined and expose the audio playing port 4, thereby makes the loudspeaker 24 emitted audio can be transmitted to the mine through the audio playing port 4, and when closing the audio playing port 4, only need to reverse the output end of the motor 9 and rotate, thereby cooperate driven gear 19, first fixed shaft 17 and support rod 10 drive sealing plate 11 reset and make sealing plate 11 angle reset through torsion spring 23 and reinsert into the audio playing port 4.

[0026] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A coal mine underground broadcast terminal, characterized by: The invention comprises a chassis (1), a front cover (2) is movably mounted on the front side of the chassis (1), a modem (3) is fixedly mounted in the front cover (2), an audio playback port (4) is provided on the front cover (2) below the modem (3), an intercom (5) is movably mounted on one side of the chassis (1), and the modem (3) and the intercom (5) are electrically connected to a main control board in the chassis (1) via connecting wires, a mounting beam (6) is fixedly mounted in the chassis (1), a speaker (24) is fixedly mounted on the front side of the mounting beam (6), and the speaker (24) is also electrically connected to the main control board in the chassis (1) through a connecting line. The mounting beam (6) located on one side of the speaker (24) is provided with a sealing mechanism (7). The sealing mechanism (7) includes a mounting seat (8), a motor (9), a support rod (10) and a sealing plate (11). The sealing plate (11) is movably mounted on the top of the support rod (10), and the support rod (10) is movably mounted on the front side of the mounting seat (8). The motor (9) is fixedly mounted on one side of the mounting seat (8), and the mounting seat (8) is fixedly mounted on the front side of the mounting beam (6).

2. The coal mine underground broadcast terminal according to claim 1, characterized in that: A side plate (12) is fixedly mounted on the rear side of the mounting seat (8), a first connecting groove (13) is provided on the front side of the mounting seat (8), and the side plate (12) is fixedly mounted on the front side of the mounting beam (6).

3. The coal mine underground broadcast terminal according to claim 2, characterized in that: One side of the mounting seat (8) is fixedly mounted on a frame (14), one side of the motor (9) is fixedly mounted on one side of the frame (14), and an output end of the motor (9) passes through the frame (14) and is fixedly mounted with a driving gear (15).

4. The coal mine underground broadcast terminal according to claim 3, characterized in that: A second connecting groove (20) is provided on the top of the support rod (10), a third fixed shaft (21) is fixedly installed in the second connecting groove (20), and the third fixed shaft (21) located in the second connecting groove (20) is sleeved with a torsion spring (23).

5. The underground coal mine broadcast terminal according to claim 4, characterized in that: A connecting rod (16) is fixedly installed at the bottom of the support rod (10), and a first fixed shaft (17) is fixedly installed at the bottom of the connecting rod (16). The bottom of the connecting rod (16) is rotatably installed in the first connecting groove (13) through the first fixed shaft (17), and a second fixed shaft (18) is fixedly installed on one side of the first fixed shaft (17). A driven gear (19) is fixedly installed on the second fixed shaft (18), and the driven gear (19) is meshed and connected with the driving gear (15).

6. The coal mine underground broadcast terminal according to claim 5, characterized in that: Two connecting seats (22) are fixedly mounted on the rear side of the sealing plate (11), and the sealing plate (11) is rotatably mounted on the third fixed shaft (21) via the two connecting seats (22).

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