Tunnel emergency frequency modulation broadcasting device

Abstract

The utility model discloses a tunnel emergency frequency modulation broadcasting device, which comprises a tunnel frequency modulation broadcasting installation assembly, and the tunnel frequency modulation broadcasting installation assembly comprises a broadcasting installation frame, a circular installation hole formed in the surface of the broadcasting installation frame, and a broadcasting loudspeaker clamped into the circular installation hole. The sealing assembly comprises an annular frame arranged on the side face of the broadcast installation frame, an annular opening formed in the middle of the annular frame, an annular piece fixed to the outer side wall of the annular frame and a threaded frame fixed to the outer side of the circular installation hole. According to the utility model, through mutual cooperation of the tunnel frequency modulation broadcast installation assembly and the sealing assembly, during use, a broadcast loudspeaker can be limited and locked through simple single rotation, and a three-layer sealing structure and a multiple sealing structure are formed at the same time, so that moisture is prevented from entering, emergency frequency modulation broadcast faults are prevented, and the service life of the broadcast loudspeaker is prolonged. Therefore, the use cost is reduced, the disassembly difficulty of the multiple closed structures is reduced, and regular maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel emergency broadcasting, in particular to a tunnel emergency frequency modulation broadcasting device. Background Art

[0002] The tunnel emergency FM broadcasting is located in the tunnel. Since the tunnel is relatively closed and narrow, the humidity in the tunnel is relatively high. When the humidity in the tunnel is high in rainy weather, the humid air can easily corrode the line concentration end of the emergency FM broadcasting, which can easily lead to line failure, thus affecting the emergency use of the emergency FM broadcasting. In the prior art, a protective frame is generally used to block the line concentration end of the tunnel emergency FM broadcasting. Although such a structural design has a certain sealing effect, humid air can easily enter the protective frame through the distributed holes. In the long run, the tunnel emergency FM broadcasting device is prone to failure. If multiple sealings are used, the operation steps are more, which not only has high use costs, but is also relatively cumbersome for regular maintenance and disassembly. Utility Model Content

[0003] Therefore, the purpose of the utility model is to provide a tunnel emergency FM broadcasting device. Through the mutual cooperation of the tunnel FM broadcasting installation component and the closing component, when in use, the broadcasting speaker can be limited and locked by a simple single rotation, and a three-layer sealing structure can be formed at the same time. The multiple sealing structures prevent moisture from entering and prevent emergency FM broadcasting failures. This not only reduces the cost of use, but also reduces the difficulty of disassembling the multiple closing structures, making regular maintenance convenient.

[0004] To solve the above technical problems, according to one aspect of the utility model, the utility model provides the following technical solution: a tunnel emergency FM broadcasting device, comprising:

[0005] A tunnel FM broadcast installation assembly, the tunnel FM broadcast installation assembly comprising a broadcast installation frame, a circular installation hole provided on the surface of the broadcast installation frame, and a broadcast speaker inserted into the circular installation hole;

[0006] A closed component, the closed component includes an annular frame arranged on the side of the broadcast mounting frame, an annular opening formed in the middle position of the annular frame, an annular sheet fixed to the outer wall of the annular frame, a threaded frame fixed to the outside of the circular mounting hole, a first annular groove opened on the outer surface of the broadcast mounting frame, a second annular groove located outside the first annular groove, a notch opened on the bottom surface of the annular sheet, an internal thread opened on the inner side of the notch, and a first annular protrusion and a second annular protrusion fixed to the bottom surface of the annular sheet.

[0007] As a preferred solution of a tunnel emergency FM broadcasting device described in the utility model, the tunnel FM broadcasting installation assembly also includes a Z-shaped fixing frame fixed on both side walls of the broadcasting installation frame and a circular hole opened on the surface of the Z-shaped fixing frame.

[0008] As a preferred solution of the tunnel emergency FM broadcasting device described in the utility model, the first annular protrusion and the second annular protrusion are respectively fitted with the first annular groove and the second annular groove, and rubber pads are placed in the first annular groove and the second annular groove.

[0009] As a preferred solution of the tunnel emergency FM broadcasting device described in the utility model, there are three circular mounting holes, and the three circular mounting holes are distributed at equal intervals;

[0010] Wherein, each circular mounting hole is provided with a corresponding broadcast speaker.

[0011] As a preferred solution of a tunnel emergency FM broadcasting device described in the utility model, it also includes a centralized covering component, which includes a rear baffle plate arranged on the back side of the broadcast mounting frame, through holes opened at the four corners of the rear baffle plate, a third annular protrusion fixed on the surface of the rear baffle plate, and a fourth annular protrusion located on the inner side of the third annular protrusion.

[0012] As a preferred solution of a tunnel emergency FM broadcasting device described in the utility model, the centralized covering component also includes a third annular groove opened on the back of the broadcasting installation frame, a fourth annular groove located on the inner side of the third annular groove and a circular opening opened on the back of the broadcasting installation frame.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] 1. The utility model cooperates with the tunnel FM broadcast installation component and the closing component to achieve the limit locking of the broadcast speaker through a simple single rotation when in use, and simultaneously forms a three-layer sealing structure. The multiple sealing structures prevent moisture from entering and prevent emergency FM broadcast failures. This not only reduces the cost of use, but also reduces the difficulty of disassembling the multiple closing structures, making regular maintenance convenient.

[0015] 2. Based on the beneficial effect 1, by setting up a centralized covering component, it is convenient to directly expose the centralized end of the line of the broadcast speaker when maintaining several distributed broadcast speakers at the same time, without disassembling the closed structure of the broadcast speaker one by one, thereby further improving the maintenance efficiency;

[0016] During specific use, the user inserts the radio speaker into the circular mounting hole, and the user takes the annular frame and makes the annular frame fit with the radio speaker. At this time, the user rotates the annular frame, and the threaded frame and the internal thread are connected to each other. During the progressive advancement of the annular frame thread, the notch directly contacts the radio speaker, and the radio speaker is directly locked in the circular mounting hole. At this time, the first annular protrusion and the second annular protrusion are directly inserted into the first annular groove and the second annular groove, and the first annular protrusion and the second annular protrusion are pressed against the rubber pads located in the first annular groove and the second annular groove, thus forming two seals, and a three-sealing structure can be formed by cooperating with the threaded frame to prevent moisture from entering, and the seal can be locked by rotating the annular frame. No extra operation is required, and it is convenient to use and easy to disassemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a structural diagram of the enclosed component of the utility model from a first perspective;

[0020] Figure 3 This is a structural diagram of the closed component of the utility model from a second perspective.

[0021] In the figure: 11, broadcast installation frame; 12, circular installation hole; 13, Z-shaped fixing frame; 14, circular hole; 15, broadcast speaker; 21, annular frame; 22, annular opening; 23, annular sheet; 24, threaded frame; 25, first annular groove; 26, second annular groove; 27, internal thread; 28, first annular protrusion; 29, second annular protrusion; 211, notch; 31, rear baffle; 32, through hole; 33, third annular protrusion; 34, fourth annular protrusion; 35, third annular groove; 36, fourth annular groove; 37, circular opening. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides a tunnel emergency FM broadcasting device. Through the mutual cooperation of the tunnel FM broadcasting installation component and the closing component, when in use, the broadcasting speaker can be limited and locked by a simple single rotation, and a three-layer sealing structure is formed at the same time. The multiple sealing structures prevent moisture from entering and prevent emergency FM broadcasting failures. This not only reduces the cost of use, but also reduces the difficulty of disassembling the multiple closing structures, making regular maintenance convenient.

[0027] Example 1

[0028] Figure 1 , Figure 2 , Figure 3 The figure shows the overall structure of an embodiment of a tunnel emergency FM broadcasting device of the utility model. Figure 1 , Figure 2 , Figure 3 The main structure of this implementation method includes: a tunnel FM broadcast installation component and a closing component.

[0029] The tunnel FM radio installation assembly is used to be installed in a tunnel. Specifically, the tunnel FM radio installation assembly includes a set radio installation frame 11, a circular installation hole 12 opened on the surface of the radio installation frame 11, and a radio speaker 15 inserted into the circular installation hole 12. The tunnel FM radio installation assembly also includes a Z-shaped fixing frame 13 fixed on the two side walls of the radio installation frame 11 and a circular hole 14 opened on the surface of the Z-shaped fixing frame 13.

[0030] During specific use, the user fits the Z-shaped fixing frame 13 into the tunnel and tightens it by inserting expansion bolts through the circular holes 14, and the broadcasting loudspeaker 15 can be used in an emergency.

[0031] The closing component is used in conjunction with the tunnel FM broadcast installation component. Specifically, the closing component includes an annular frame 21 arranged on the side of the broadcast installation frame 11, an annular opening 22 formed in the middle of the annular frame 21, an annular sheet 23 fixed to the outer wall of the annular frame 21, a threaded frame 24 fixed to the outer side of the circular installation hole 12, a first annular groove 25 provided on the outer surface of the broadcast installation frame 11, a second annular groove 26 located outside the first annular groove 25, a notch 211 provided on the bottom surface of the annular sheet 23, an internal thread 27 provided on the inner side of the notch 211, and a first annular protrusion 28 and a second annular protrusion 29 fixed to the bottom surface of the annular sheet 23;

[0032] During specific use, the user inserts the broadcast speaker 15 into the circular mounting hole 12, and the user takes the annular frame 21 and makes the annular frame 21 fit with the broadcast speaker 15. At this time, the user rotates the annular frame 21, and the threaded frame 24 and the internal thread 27 are connected to each other. During the thread advancement of the annular frame 21, the notch 211 directly contacts the broadcast speaker 15, and the broadcast speaker 15 is directly locked in the circular mounting hole 12. At this time, the first annular protrusion 28 and the second annular protrusion 29 are directly inserted into the first annular groove 25 and the second annular groove 26, and the first annular protrusion 28 and the second annular protrusion 29 are pressed against the rubber pads located in the first annular groove 25 and the second annular groove 26, so that two seals are formed, and a three-seal structure can be formed by cooperating with the threaded frame 24 to prevent moisture from entering, and the seal can be locked by rotating the annular frame 21, without the need for unnecessary operations, which is convenient to use and easy to disassemble and maintain.

[0033] Example 2

[0034] Please refer to Figure 1 and Figure 3 By setting a centralized covering component, it is convenient to directly expose the centralized line ends of the broadcast speakers 15 when maintaining several distributed broadcast speakers 15 at the same time, without disassembling the closed structures of the broadcast speakers 15 one by one, thereby further improving the maintenance efficiency;

[0035] Specifically, it also includes a centralized covering component, which includes a rear baffle 31 arranged on the back side of the broadcast installation frame 11, through holes 32 opened at four corners of the rear baffle 31, a third annular protrusion 33 fixed on the surface of the rear baffle 31, and a fourth annular protrusion 34 located inside the third annular protrusion 33.

[0036] The centralized covering assembly further includes a third annular groove 35 provided on the back of the broadcast mounting frame 11, a fourth annular groove 36 located inside the third annular groove 35, and a circular opening 37 provided on the back of the broadcast mounting frame 11;

[0037] During actual use, the third annular protrusion 33 and the fourth annular protrusion 34 are respectively fitted with the third annular groove 35 and the fourth annular groove 36 to form a double-layer seal. When it is necessary to maintain several distributed broadcast speakers 15 at the same time, the user directly removes the rear baffle 31, so that the back of the entire broadcast installation frame 11 is exposed, which is convenient for centralized maintenance without the need to disassemble the annular frame 21 one by one.

[0038] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tunnel emergency FM broadcasting device, characterized in that: include: A tunnel FM broadcast installation component, the tunnel FM broadcast installation component comprising a broadcast installation frame (11), a circular installation hole (12) provided on the surface of the broadcast installation frame (11), and a broadcast speaker (15) inserted into the circular installation hole (12); A sealing component, the sealing component comprising an annular frame (21) arranged on the side of the broadcast installation frame (11), an annular opening (22) formed in the middle of the annular frame (21), an annular sheet (23) fixed to the outer wall of the annular frame (21), a threaded frame (24) fixed to the outside of the circular installation hole (12), a first annular groove (25) provided on the outer surface of the broadcast installation frame (11), a second annular groove (26) located outside the first annular groove (25), a notch (211) provided on the bottom surface of the annular sheet (23), an internal thread (27) provided on the inner side of the notch (211), a first annular protrusion (28) and a second annular protrusion (29) fixed to the bottom surface of the annular sheet (23).

2. A tunnel emergency FM broadcasting device according to claim 1, characterized in that: The tunnel FM broadcast installation assembly also includes a Z-shaped fixing frame (13) fixed to the two side walls of the broadcast installation frame (11) and a circular hole (14) opened on the surface of the Z-shaped fixing frame (13).

3. A tunnel emergency FM broadcasting device according to claim 2, characterized in that: The first annular protrusion (28) and the second annular protrusion (29) are respectively fitted with the first annular groove (25) and the second annular groove (26), and rubber pads are placed in the first annular groove (25) and the second annular groove (26).

4. A tunnel emergency FM broadcasting device according to claim 3, characterized in that: The circular mounting holes (12) are provided in three numbers, and the three circular mounting holes (12) are distributed at equal intervals; Wherein, a corresponding broadcasting speaker (15) is arranged at the position of each circular mounting hole (12).

5. A tunnel emergency FM broadcasting device according to claim 4, characterized in that: The invention also includes a centralized covering component, which includes a rear baffle (31) arranged on the back side of the broadcast installation frame (11), through holes (32) opened at four corners of the rear baffle (31), a third annular protrusion (33) fixed on the surface of the rear baffle (31), and a fourth annular protrusion (34) located on the inner side of the third annular protrusion (33).

6. A tunnel emergency FM broadcasting device according to claim 5, characterized in that: The centralized covering assembly further comprises a third annular groove (35) formed on the back of the broadcast installation frame (11), a fourth annular groove (36) located inside the third annular groove (35), and a circular opening (37) formed on the back of the broadcast installation frame (11).

Images