Mining intrinsic safety type acousto-optic annunciator

Abstract

The utility model discloses a mining intrinsic safety type acousto-optic annunciator, a loudspeaker is arranged in an acousto-optic annunciator main body, a sound hole is arranged outside the acousto-optic annunciator main body opposite to the loudspeaker, an adjusting structure comprises a central turntable, a baffle plate and a sound amplification cavity, and the baffle plate and the sound amplification cavity are respectively arranged at two sides of the central turntable; the central turntable is rotatably arranged beside the sound hole; the driving structure is arranged in the acousto-optic annunciator main body and is connected with the central turntable through the transmission structure; a current inductor is arranged on a power supply line of the loudspeaker, a controller is arranged in the acousto-optic annunciator body, and the current inductor and the driving structure are connected with the controller. According to the utility model, through rotation of the adjusting structure, when the loudspeaker works, the sound amplification cavity can be rotated to the sound hole to enhance sound transmission, and when the loudspeaker does not work, the baffle can be rotated to the sound hole to shield the sound hole, so that dust is prevented from being accumulated at the sound hole, and effective transmission of signals in emergency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sound and light signal devices, in particular to an intrinsically safe sound and light signal device for mining. Background Art

[0002] The mine-use intrinsically safe sound and light signal device is a security device specially used in coal mine environments. It combines sound and light alarm methods to improve the warning effect and ensure that information can be noticed in time under various environmental conditions.

[0003] In the related art, the design of intrinsically safe sound and light signal devices for mining usually includes a horn and an alarm, usually visually and audibly to improve the warning effect.

[0004] However, in the complex mining environment, the sound transmission effect of the speaker is generally affected by the noisy noise in the mine. In addition, due to the large amount of coal powder in the mine, a lot of dust will accumulate in the sound holes of the speaker, which will not only affect the sound quality of the speaker, but also make the alarm sound unclear, affecting the effective transmission of signals in emergency situations. Long-term accumulation may also cause damage to the speaker and shorten the service life of the equipment. Summary of the invention

[0005] The utility model aims to solve one of the technical problems in the above-mentioned technology at least to a certain extent.

[0006] To achieve the above-mentioned object, the first aspect of the utility model proposes a mining intrinsically safe sound and light signal device, wherein a speaker is built into the sound and light signal device body, and a sound hole is opened outside the sound and light signal device body opposite to the speaker, and the utility model is characterized in that it includes an adjustment structure, a driving structure and a transmission structure, wherein the adjustment structure is rotatably arranged at the sound hole, and the adjustment structure includes a central turntable, a baffle and a sound amplification cavity, wherein the baffle and the sound amplification cavity are respectively arranged on both sides of the central turntable; the central turntable is rotatably arranged on the sound and light signal device body and is located next to the sound hole; the baffle and the sound amplification cavity are both provided with brushes on one side close to the sound and light signal device body; the driving structure is arranged in the sound and light signal device body and is connected to the central turntable through the transmission structure; a current sensor is arranged on the power supply line of the speaker, a controller is arranged in the sound and light signal device body, and the current sensor and the driving structure are respectively connected to the controller.

[0007] In addition, the intrinsically safe sound and light signal device for mining proposed in the utility model may also have the following additional technical features:

[0008] As a further description of the above technical solution: the adjustment structure includes a first state and a second state, wherein in the first state, the baffle blocks the sound hole, and in the second state, the sound amplification cavity is located at the sound hole.

[0009] As a further description of the above technical solution: the sound amplification cavity is in a trumpet shape, with openings at both ends, and the sound amplification cavity expands circumferentially from one side close to the body of the sound and light signal device to the other side.

[0010] As a further description of the above technical solution: the transmission structure includes a driving gear and a driven gear, wherein the driving gear is arranged at the output end of the driving structure, the driven gear is coaxially arranged with the center turntable, and the driving gear is meshed and connected with the driven gear.

[0011] As a further description of the above technical solution: a mounting frame is arranged inside the main body of the sound and light signal device, and the driving structure is arranged on the mounting frame.

[0012] As a further description of the above technical solution: an alarm is also arranged on the main body of the sound and light signal device.

[0013] As a further description of the above technical solution: a microphone is also arranged inside the main body of the sound and light signal device, and a call button is arranged outside the main body of the sound and light signal device, and the call button is connected to the microphone.

[0014] According to the mining intrinsically safe sound and light signal device of the utility model, by adjusting the rotation of the structure, when the speaker is working, the sound amplification cavity can be rotated to the sound hole to enhance the propagation of sound, and when the speaker is not working, the baffle can be rotated to the sound hole to cover the sound hole to avoid dust accumulation at the sound hole, thereby ensuring the effective transmission of signals in emergency situations.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a mining intrinsically safe sound and light signal device according to an embodiment of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a mining intrinsically safe sound and light signal device according to another embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of a mining intrinsically safe sound and light signal device according to an embodiment of the utility model;

[0020] Figure 4It is a schematic diagram of the connection between the adjustment structure and the driving structure according to one embodiment of the utility model;

[0021] As shown in the figure:

[0022] 100, the main body of the sound and light signal device; 101, the sound hole; 102, the alarm; 200, the adjustment structure; 210, the central turntable; 220, the baffle; 230, the sound amplification cavity; 300, the driving structure; 301, the mounting frame; 400, the transmission structure; 410, the driving gear; 420, the driven gear. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The intrinsically safe sound and light signal device for mining according to an embodiment of the utility model will be described below in conjunction with the accompanying drawings.

[0025] like Figures 1 to 3 As shown, the intrinsically safe sound and light signal device for mining of the embodiment of the utility model has a main body 100 with a speaker built in it, and a sound hole 101 is opened outside the main body 100 of the sound and light signal device opposite to the speaker, and includes an adjustment structure 200, a driving structure 300 and a transmission structure 400.

[0026] The adjustment structure 200 is rotatably disposed at the sound hole 101 , and the adjustment structure 200 includes a central turntable 210 , a baffle 220 and a sound amplification cavity 230 .

[0027] The baffle 220 and the sound amplifying cavity 230 are respectively arranged on both sides of the central turntable 210. The central turntable 210 is rotatably arranged on the sound and light signal device body 100 and is located next to the sound hole 101. The baffle 220 and the sound amplifying cavity 230 are both provided with a brush 201 on one side close to the sound and light signal device body 100.

[0028] It can be understood that the brush fits against the outer wall of the sound and light signal device body 100, and when the baffle 220 or the sound amplification cavity 230 rotates, the corresponding brush scrapes the sound and light signal device body 100 to remove dust on the sound and light signal device body 100 and the sound hole 101 to avoid dust accumulation.

[0029] To clearly explain the above embodiment, in one embodiment of the present invention, the adjustment structure 200 includes a first state and a second state, wherein in the first state, as Figure 1 As shown, the baffle 220 blocks the sound hole 101. In the second state, as shown in FIG. Figure 2As shown, the sound amplification cavity 230 is located at the sound hole 101 .

[0030] It should be noted that there are multiple sound holes 101, and the multiple sound holes 101 are arranged in a circle, then the baffle 220 and the sound amplification cavity 230 are matched with the multiple sound holes 101 respectively, that is, in the first state, the baffle 220 rotates to the sound hole 101, and the baffle 220 can completely cover the multiple sound holes 101, and in the second state, when the sound amplification cavity 230 rotates to the multiple sound holes 101, the sound amplification cavity 230 covers the multiple sound holes 101.

[0031] The driving structure 300 is disposed in the main body 100 of the sound and light signal device, and is connected to the central turntable 210 through the transmission structure 400 .

[0032] As a possible situation, the driving structure 300 may be a mining intrinsically safe motor to ensure the safe use of the entire device.

[0033] A current sensor is provided on the power supply line of the speaker, a controller is provided in the main body 100 of the sound and light signal device, and the current sensor and the driving structure 300 are respectively connected to the controller.

[0034] It should be noted that the current sensor can detect the current of the speaker power supply line to determine whether the speaker is in a working state, so as to control the driving structure 300 through the controller so that the adjustment structure 200 can be in the first state or the second state.

[0035] Specifically, when the relevant staff installs the entire device in the mine, if the speaker is working, the current at the power supply line of the speaker changes, the current sensor transmits the current signal to the controller, and the controller controls the driving structure 300 to work, so that the transmission structure 400 can drive the adjustment structure 200 to rotate, that is, the center turntable 210 rotates, and rotates the sound amplification cavity 230 to the sound hole 101, that is, the second state, thereby enhancing the sound transmitted from the sound hole 101 to compensate for the situation that the speaker sound is too small in the noisy environment under the mine.

[0036] When the speaker is not in operation, the current sensor does not detect obvious current changes, and transmits a signal to the controller, which controls the driving structure 300 to work, so that the adjustment structure 200 rotates to the first state, that is, the baffle 220 rotates to the sound hole 101 to cover the sound hole 101, so as to avoid dust accumulation in the sound hole 101 when the speaker is not in operation.

[0037] In one embodiment of the present invention, Figure 4As shown, the transmission structure 400 includes a driving gear 410 and a driven gear 420 , wherein the driving gear 410 is arranged at the output end of the driving structure 300 , the driven gear 420 is coaxially arranged with the central rotating disk 210 , and the driving gear 410 and the driven gear 420 are meshed and connected.

[0038] In addition, a mounting frame 301 is disposed in the main body 100 of the sound and light signal device, and the driving structure 300 is disposed on the mounting frame 301 .

[0039] It should be noted that when the controller controls the driving structure 300, the driving structure 300 drives the active gear 410 to rotate, so that the driven gear 420 meshing therewith rotates, thereby causing the center turntable 210 to rotate, thereby realizing the switching of the adjustment structure 200 between the first state and the second state.

[0040] In one embodiment of the present invention, an alarm 102 is also provided on the main body 100 of the sound and light signal device.

[0041] As a possible scenario, the alarm 102 is a signal light, and a lens is provided on the outer ring to enhance the alarm effect of the alarm.

[0042] In addition, a microphone is provided inside the sound and light signal device body 100, and a call button is provided outside the sound and light signal device body 100. The call button is connected to the microphone, and relevant staff can conduct real-time intercom by pressing the call button.

[0043] In summary, according to the mining intrinsically safe sound and light signal device of the embodiment of the utility model, by adjusting the rotation of the structure 200, when the speaker is working, the sound amplification cavity 230 can be rotated to the sound hole 101 to enhance the propagation of sound, and when the speaker is not working, the baffle 220 can be rotated to the sound hole 101 to block the sound hole 101, thereby avoiding dust accumulation at the sound hole 101 and ensuring the effective transmission of signals in emergency situations.

[0044] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0046] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A mine-use intrinsically safe sound and light signal device, wherein a speaker is built into the sound and light signal device body (100), and a sound hole (101) is provided outside the sound and light signal device body (100) directly facing the speaker, characterized in that: It comprises an adjustment structure (200), a driving structure (300) and a transmission structure (400), wherein: The adjustment structure (200) is rotatably arranged at the sound hole (101), and the adjustment structure (200) comprises a central turntable (210), a baffle (220) and a sound amplification cavity (230), wherein: The baffle (220) and the sound amplification cavity (230) are respectively arranged on two sides of the central turntable (210); The central rotating disk (210) is rotatably arranged on the sound and light signal device body (100) and is located beside the sound hole (101); A brush (201) is provided on one side of the baffle (220) and the sound amplification cavity (230) close to the sound and light signal device body (100); The driving structure (300) is arranged in the sound and light signal device body (100), and is connected to the central rotating disk (210) through the transmission structure (400); A current sensor is arranged on the power supply line of the speaker, a controller is arranged in the main body (100) of the sound and light signal device, and the current sensor and the driving structure (300) are respectively connected to the controller.

2. According to the mine intrinsically safe sound and light signal device described in claim 1, it is characterized in that: The adjustment structure (200) comprises a first state and a second state, wherein in the first state, the baffle (220) blocks the sound hole (101), and in the second state, the sound amplification cavity (230) is located at the sound hole (101).

3. According to the mine intrinsically safe sound and light signal device described in claim 1, it is characterized in that: The sound amplification cavity (230) is in the shape of a trumpet mouth, with both ends of the sound amplification cavity (230) open, and the sound amplification cavity (230) expands circumferentially from one side close to the sound and light signal device body (100) to the other side.

4. According to the mine intrinsically safe sound and light signal device described in claim 1, it is characterized in that: The transmission structure (400) comprises a driving gear (410) and a driven gear (420), wherein the driving gear (410) is arranged at the output end of the driving structure (300), the driven gear (420) is coaxially arranged with the central rotating disk (210), and the driving gear (410) and the driven gear (420) are meshed and connected.

5. According to the mine intrinsically safe sound and light signal device described in claim 1, it is characterized in that: A mounting frame (301) is arranged inside the sound and light signal device body (100), and the driving structure (300) is arranged on the mounting frame (301).

6. The intrinsically safe sound and light signal device for mining according to claim 1, characterized in that: The sound and light signal device body (100) is also provided with an alarm (102).

7. The intrinsically safe sound and light signal device for mining according to claim 1, characterized in that: A microphone is also arranged inside the sound and light signal device body (100), and a call button is arranged outside the sound and light signal device body (100), and the call button is connected to the microphone.

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