Mining communication annunciator with explosion-proof shell

Abstract

The utility model discloses a mining communication annunciator with an explosion-proof shell, which comprises a communication annunciator body, an annunciator loudspeaker is fixedly mounted on the bottom surface of the communication annunciator body, and a loudspeaker protection dustproof assembly is mounted on the outer side of the annunciator loudspeaker. The loudspeaker protection and dust prevention assembly comprises a butt joint groove formed in the outer side surface of the annunciator loudspeaker. According to the mining communication annunciator with the explosion-proof shell, three groups of butt joint seats at the bottom of a shielding sheet are respectively inserted into three groups of butt joint grooves formed in the surface of an annunciator loudspeaker, so that the shielding sheet can be quickly positioned and mounted on the annunciator loudspeaker, and the annunciator loudspeaker can be protected; when the situations of rock falling, equipment collision and the like possibly exist in the mine environment, large solid particles can be effectively prevented from directly impacting the annunciator loudspeaker through the arrangement of the shielding piece and the protective dustproof piece, and fragile parts such as a vibrating diaphragm and a coil of the annunciator loudspeaker are protected against damage.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mining equipment, concretely to a mine communication signal device with explosion -proof housing. BACKGROUND

[0002] The working principle of the mine communication signal device is as follows: I, signal transmitting part: voice input and processing: the user inputs voice signal through microphone and other equipment; the internal audio processing circuit amplifies, filters and processes the voice signal, removes noise and interference, and improves the quality of the signal; encoding and modulation: the processed voice signal is sent to the encoding module for digital encoding, converting the analog voice signal into a digital signal for more efficient transmission and processing; the encoded signal is loaded onto a high-frequency carrier signal through the modulation module using a specific modulation method (such as frequency modulation, amplitude modulation, etc.); this way, the signal can be transmitted within a specific frequency range and has better anti-interference ability; II, signal receiving part: antenna reception: the antenna receives signals from the transmitting end and converts electromagnetic waves into electrical signals; filtering and amplification: the received signal is first filtered to remove unwanted frequency components and interference signals; then it is amplified by a low-noise amplifier to increase the signal strength for subsequent processing.

[0003] Dust is likely to accumulate in the speaker opening on the outer side of the mine communication signal device: dust can block the speaker opening and hinder the propagation of sound; especially in emergency situations, when clear instructions or alarms are needed, reduced volume may delay response time and increase safety risks; accumulated dust can change the acoustic characteristics of the speaker, causing sound distortion; the originally clear voice may become unclear and difficult to distinguish the specific content, affecting the accuracy of communication. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a mine communication signal device with explosion -proof housing to solve the defect that dust is likely to accumulate in the speaker opening on the outer side of the mine communication signal device mentioned in the background art.

[0005] To achieve the above-mentioned purpose, a mine communication signal device with explosion -proof housing is provided, which comprises a communication signal device body, a signal device speaker is fixedly installed on the bottom surface of the communication signal device body, and a speaker protection dustproof assembly is installed on the outer side of the signal device speaker, the speaker protection dustproof assembly comprises a butt joint groove opened on the outer surface of the signal device speaker, a butt joint seat is installed on the upper side of the butt joint groove, a shielding piece is fixedly installed on the top of the butt joint seat, a protective dustproof piece is covered on the surface of the shielding piece, a front speaker piece is fixedly installed on the front end of the protective dustproof piece, the shielding piece is arranged in a "C" shape, and a front speaker opening is opened on the front part of the shielding piece.

[0006] Preferably, the signal speaker is uniformly provided with a plurality of groups of speaker holes arranged at equal intervals, and the axial section of the signal speaker and the shielding piece is a concentric circle structure.

[0007] Preferably, the shielding piece is a cylindrical structure made of plastic material, and a positioning groove is formed in the inner side of the top of the shielding piece, and a protective dustproof piece is mounted on the positioning groove; three groups of butt joints are uniformly mounted on the bottom of the shielding piece, and three groups of butt grooves are uniformly formed on the surface of the signal speaker, the size of the butt grooves and the butt joints is matched, and the three groups of butt joints are respectively inserted into the three groups of butt grooves, and the shielding piece is positioned and mounted on the signal speaker through the three groups of butt grooves and the butt joints.

[0008] Preferably, the size of the protective dustproof piece and the positioning groove is matched, and the protective dustproof piece is clamped in the positioning groove.

[0009] Preferably, a plurality of groups of openings are uniformly formed on the surface of the protective dustproof piece, and a plurality of groups of openings are uniformly formed on the surface of the front speaker piece at the end of the protective dustproof piece, the front speaker piece is arranged in an arc shape, and the size of the front speaker piece and the front speaker port is matched, and the front speaker piece is clamped in the front speaker port.

[0010] Preferably, five groups of insertion holes are uniformly formed on the surface of the protective dustproof piece, and five groups of threaded holes are uniformly formed on the surface of the positioning groove, the size of the threaded holes and the fixing bolts is matched, and the fixing bolts are screwed into the threaded holes formed in the positioning groove through the insertion holes.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The three groups of butt joints at the bottom of the shielding piece are respectively inserted into the three groups of butt grooves formed on the surface of the signal speaker, the shielding piece can be quickly positioned and mounted on the signal speaker, and the signal speaker can be protected; when rocks fall, equipment collides and the like may occur in the mine environment, the shielding piece and the protective dustproof piece can effectively block the direct impact of large solid particles on the signal speaker, and protect the fragile parts such as the diaphragm and the coil of the signal speaker from being damaged.

[0013] 2. Although the shielding piece and the protective dustproof piece cannot completely prevent dust from entering, the protective dustproof piece can block most of the large particles of dust and reduce the accumulation of dust at the speaker opening; this helps to keep the speaker clean and reduces the risk of affecting sound propagation and equipment performance due to excessive dust.

[0014] 3. The utility model discloses a handheld shielding piece, which is detachable from the loudspeaker protection and dustproof assembly on the signal loudspeaker, facilitating quick cleaning of dust adhered to the inner wall of the opening of the loudspeaker protection and dustproof assembly. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the structure of the utility model;

[0016] Figure 2 It is a bottom view of the structure of the utility model;

[0017] Figure 3 It is a top view of the structure of the utility model;

[0018] Figure 4 It is a schematic view of the loudspeaker protection and dustproof assembly;

[0019] Figure 5 It is Figure 4 a sectional view.

[0020] Reference signs in the drawing: 1, communication signaler body; 2, signal loudspeaker; 3, loudspeaker protection and dustproof assembly; 31, docking groove; 32, docking seat; 33, shielding piece; 331, positioning groove; 34, front loudspeaker opening; 35, front loudspeaker piece; 36, protection and dustproof piece; 37, opening; 38, fixing bolt; 39, insertion hole. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-5 , the utility model provides a mine communication signaler with explosion -proof housing, including communication signaler body 1, the bottom surface fixed mounting of communication signaler body 1 has signal loudspeaker 2, and the outside installation of signal loudspeaker 2 has loudspeaker protection and dustproof assembly 3, loudspeaker protection and dustproof assembly 3 includes the docking groove 31 of setting in the outside surface of signal loudspeaker 2, and the upper side installation of docking groove 31 has docking seat 32, simultaneously, the top fixed mounting of docking seat 32 has shielding piece 33, and the surface of shielding piece 33 is covered with protection and dustproof piece 36, and the front end of protection and dustproof piece 36 is fixedly installed with front loudspeaker piece 35, shielding piece 33 is " C " shape setting, and the front of shielding piece 33 is set with front loudspeaker opening 34.

[0022] As can be known from the above, during use, when the loudspeaker protection and dustproof assembly 3 is installed, the dustproof sheet 36 is clamped on the top inner wall of the shielding sheet 33, the fixing bolt 38 is screwed in the screw hole provided in the positioning groove 331, and the dustproof sheet 36 is positioned and installed on the shielding sheet 33; the shielding sheet 33 is inserted into the three groups of docking grooves 31 provided on the surface of the signal loudspeaker 2, the shielding sheet 33 is quickly positioned and installed on the signal loudspeaker 2, and the dustproof sheet 36 covers the outside of the surface of the signal loudspeaker 2; the signal loudspeaker 2 is protected; when the rock falls or the equipment collides in the mine environment, the shielding sheet 33 and the dustproof sheet 36 can effectively block the large solid particles from directly impacting the signal loudspeaker 2, and protect the fragile parts such as the diaphragm and the coil of the signal loudspeaker 2 from being damaged; the service life of the loudspeaker is prolonged, and the communication failure caused by physical damage is reduced.

[0023] As a preferred embodiment, a plurality of loudspeaker holes are evenly provided on the signal loudspeaker 2, and the axial section of the signal loudspeaker 2 and the shielding sheet 33 is a concentric circle structure.

[0024] As a preferred embodiment, the shielding sheet 33 is a cylindrical structure made of plastic material, the top inner side of the shielding sheet 33 is provided with a positioning groove 331, the dustproof sheet 36 is installed on the positioning groove 331, the bottom of the shielding sheet 33 is uniformly provided with three groups of docking seats 32, the surface of the signal loudspeaker 2 is uniformly provided with three groups of docking grooves 31, the size of the docking groove 31 and the docking seat 32 is matched, and the three groups of docking seats 32 are respectively inserted into the three groups of docking grooves 31, so that the shielding sheet 33 is positioned and installed on the signal loudspeaker 2 through the three groups of docking grooves 31 and the docking seats 32.

[0025] As a preferred embodiment, the size of the dustproof sheet 36 and the positioning groove 331 is matched, the dustproof sheet 36 is clamped in the positioning groove 331, and the dustproof sheet 36 is a circular structure made of plastic material.

[0026] As a preferred embodiment, a plurality of openings 37 are evenly provided on the surface of the dustproof sheet 36, a plurality of openings 37 are evenly provided on the surface of the front loudspeaker sheet 35 at the end of the dustproof sheet 36, the front loudspeaker sheet 35 is arranged in an arc shape, the size of the front loudspeaker sheet 35 and the front loudspeaker port 34 is matched, and the front loudspeaker sheet 35 is clamped in the front loudspeaker port 34.

[0027] As can be seen from the above, in use, although the arrangement of the shielding piece 33 and the protective dustproof piece 36 cannot completely prevent dust from entering, the protective dustproof piece 36 can block most of the larger particles of dust, reducing the accumulation of dust at the speaker opening; this helps to keep the speaker clean, reducing the risk of excessive dust affecting sound propagation and device performance; at the same time, the shielding piece 33 can be held by hand, and the entire speaker protective dustproof assembly 3 can be detached from the annunciator speaker 2, facilitating quick cleaning of the dust adhering to the inner wall of the opening 37 on the speaker protective dustproof assembly 3.

[0028] As a preferred embodiment, five groups of through holes 39 are uniformly arranged on the surface of the protective dustproof piece 36, and five groups of threaded holes are uniformly arranged on the surface of the positioning groove 331, the size of the threaded holes is matched with that of the fixing bolts 38, and the fixing bolts 38 are screwed into the threaded holes arranged in the positioning groove 331 through the through holes 39.

[0029] Working principle: when the speaker protective dustproof assembly 3 is installed, the protective dustproof piece 36 is clamped on the top inner wall of the shielding piece 33, the fixing bolts 38 are screwed into the threaded holes arranged in the positioning groove 331 through the through holes 39, and the dustproof piece 36 is positioned and installed on the shielding piece 33; at this time, the shielding piece 33 is held by hand, and the three groups of butt joints 32 at the bottom of the shielding piece 33 are respectively inserted into the three groups of butt joints 31 arranged on the surface of the annunciator speaker 2, the shielding piece 33 is quickly positioned and installed on the annunciator speaker 2, and the protective dustproof piece 36 covers the outside of the surface of the annunciator speaker 2; the annunciator speaker 2 can be protected; when there are situations such as rock falling and equipment collision in the mine environment, the arrangement of the shielding piece 33 and the protective dustproof piece 36 can effectively block the direct impact of larger solid particles on the annunciator speaker 2, protecting the fragile parts such as the diaphragm and coil of the annunciator speaker 2 from being damaged; prolonging the service life of the speaker and reducing communication failures caused by physical damage; although the arrangement of the shielding piece 33 and the protective dustproof piece 36 cannot completely prevent dust from entering, the protective dustproof piece 36 can block most of the larger particles of dust, reducing the accumulation of dust at the speaker opening; this helps to keep the speaker clean, reducing the risk of excessive dust affecting sound propagation and device performance; at the same time, the shielding piece 33 can be held by hand, and the entire speaker protective dustproof assembly 3 can be detached from the annunciator speaker 2, facilitating quick cleaning of the dust adhering to the inner wall of the opening 37 on the speaker protective dustproof assembly 3;

[0030] The outer shell of the communication signaler is made of high-strength metal material such as cast steel as the main body, has good mechanical strength, can bear certain external impact and pressure, and is not easy to be damaged in the mine environment; the high-strength cast steel has high hardness and toughness, can effectively resist collision and extrusion, and plays an important role in preventing the impact force generated by internal explosion from spreading outward.

[0031] The embodiments of the utility model are given for example and description, although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A mine communication signal device with an explosion-proof housing, comprising a communication signal device body (1), characterized in that: The bottom surface of the communication signal body (1) is fixedly installed with a signal speaker (2), and the outer side of the signal speaker (2) is installed with a speaker protection dustproof assembly (3), the speaker protection dustproof assembly (3) comprises a butt joint groove (31) opened on the outer side surface of the signal speaker (2), a butt joint seat (32) is installed on the upper side of the butt joint groove (31), a shielding piece (33) is fixedly installed on the top of the butt joint seat (32), the surface of the shielding piece (33) is covered with a protection dustproof piece (36), the front end of the protection dustproof piece (36) is fixedly installed with a front speaker piece (35), the shielding piece (33) is provided in a "C" shape, and a front speaker opening (34) is formed in the front part of the shielding piece (33).

2. A mine communication signal device with an explosion-proof housing according to claim 1, characterized in that: The signal speaker (2) is uniformly provided with a plurality of groups of speaker holes arranged at equal distances, and the axial section of the signal speaker (2) and the shielding piece (33) is a concentric circle structure.

3. A mine communication signal device with an explosion-proof housing according to claim 1, characterized in that: The shielding piece (33) is a cylindrical structure made of plastic material, a positioning groove (331) is formed in the inner side of the top of the shielding piece (33), and the protection dustproof piece (36) is installed on the positioning groove (331), three butt joint seats (32) are uniformly installed on the bottom of the shielding piece (33), three butt joint grooves (31) are uniformly formed on the surface of the signal speaker (2), the sizes of the butt joint grooves (31) and the butt joint seats (32) are matched, and the three butt joint seats (32) are respectively inserted into the three butt joint grooves (31), and the shielding piece (33) is positioned and installed on the signal speaker (2) through the three butt joint grooves (31) and the butt joint seats (32).

4. A mine communication signal device with an explosion-proof housing according to claim 3, characterized in that: The sizes of the protection dustproof piece (36) and the positioning groove (331) are matched, the bottom of the protection dustproof piece (36) is clamped in the positioning groove (331), and the protection dustproof piece (36) is a circular structure made of plastic material.

5. A mine communication signal device with an explosion-proof housing according to claim 4, characterized in that: A plurality of groups of openings (37) are uniformly formed on the surface of the protection dustproof piece (36), a plurality of groups of openings (37) are uniformly formed on the surface of the front speaker piece (35) at the end of the protection dustproof piece (36), the front speaker piece (35) is provided in an arc shape, the sizes of the front speaker piece (35) and the front speaker opening (34) are matched, and the front speaker piece (35) is clamped in the front speaker opening (34).

6. A mine communication signal device with an explosion-proof housing according to claim 4, characterized in that: Five groups of insertion holes (39) are uniformly formed on the surface of the protection dustproof piece (36), and five groups of threaded holes are uniformly formed on the surface of the positioning groove (331), the sizes of the threaded holes and the fixing bolts (38) are matched, and the fixing bolts (38) are screwed into the threaded holes formed in the positioning groove (331).

Images