Multifunctional directional broadcast with self-cleaning function

Abstract

The utility model discloses a multifunctional directional broadcast with a self-cleaning function, which comprises a shell, and a mesh plate is arranged on the front side of the shell; the directional sound production integrated board is mounted in the shell; the mesh cloth is arranged between the mesh plate and the directional sound production integrated plate; the cleaning devices are arranged on the two sides of the screen cloth and used for periodically knocking the screen cloth to shake off dust accumulated on the screen cloth. Through the structure, the screen cloth is knocked periodically, so that the screen cloth vibrates, dust on the screen cloth can be shaken off, the dust is prevented from being accumulated on the screen cloth, and effective transmission of sound is guaranteed.

Description

Technical Field

[0001] This utility model relates to a directional generator, and in particular to a multifunctional directional broadcast with a self-cleaning function. Background Technology

[0002] Multifunctional directional broadcasting systems, as efficient audible warning devices, are widely used on roads due to their noise reduction capabilities. However, a current problem is that these systems are frequently exposed outdoors, especially along dusty roadsides, causing a large accumulation of dust on the mesh. This hardened dust severely impairs the effective propagation of sound. Therefore, designing a multifunctional directional broadcasting system with a timed cleaning mechanism is essential. Utility Model Content

[0003] The purpose of this invention is to provide a multi-functional directional broadcast system with a self-cleaning function, so as to regularly clean the mesh panel of the multi-functional directional broadcast system and ensure that the multi-functional directional broadcast system can effectively generate directional sound alarms for a long time.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A multi-functional directional broadcast with self-cleaning function, including

[0006] A housing, wherein a perforated plate is provided on the front side of the housing;

[0007] A directional sound-generating integrated board is installed in the housing;

[0008] The mesh fabric is laid between the perforated plate and the directional sound-generating integrated plate;

[0009] A cleaning device, housed within the housing, applies periodic taps to the mesh fabric to shake off accumulated dust.

[0010] Preferably, the cleaning device includes two sets of parallel guide rails arranged on both sides of the housing. Each guide rail set includes two guide rails, which are respectively arranged on the inner side of the perforated plate and the directional sound-generating integrated plate, and the two guide rails are parallel and opposite to each other. Conveyor belts are slidably arranged in each of the two guide rail sets, and the conveyor belts pass through the mesh fabric. A drive mechanism is provided on the directional sound-generating integrated plate, and the drive mechanism is connected to the two conveyor belts to drive the conveyor belts to move in the guide rail sets. A rotating shaft A is rotatably mounted between the two conveyor belts. The rotating shaft A is located between the directional sound-generating integrated plate and the mesh fabric. Several hammers are distributed on the rotating shaft A. Gears A are provided at both ends of the rotating shaft A. A rack extending along the direction of movement of the conveyor belt is provided on the directional sound-generating integrated plate, and the gears A mesh with the rack.

[0011] Preferably, the hammers on the rotating shaft A are staggered.

[0012] Preferably, a scraper is also provided between the perforated plate and the mesh fabric, with both ends of the scraper fixedly connected to two conveyor belts respectively, and the blade of the scraper is set in contact with the inner surface of the perforated plate; a discharge port is provided at the lower part of the housing between the perforated plate and the mesh fabric.

[0013] Preferably, the side of the scraper facing the mesh is also provided with a brush, which lightly rests against the mesh.

[0014] Preferably, the drive mechanism includes two rotatable shafts B disposed in the housing, each shaft B having a gear B at both ends, the gear B meshing with the conveyor belt, and one of the shafts B being driven by a motor reducer.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This solution uses a cleaning device to periodically tap the mesh fabric, causing it to vibrate periodically and shaking off the dust. This prevents dust from hardening and clogging the mesh, ensuring the effective propagation of directional sound. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention along direction AA;

[0019] Figure 3 This is a cross-sectional view of the present invention along the BB direction;

[0020] Figure 4 This is a cross-sectional view of the present invention along the CC direction;

[0021] Figure 5 This is a schematic diagram of the structure of this utility model after the shell is removed.

[0022] Reference numerals: 1. Housing; 11. Mesh plate; 12. Discharge port; 2. Directional sound-generating integrated plate; 3. Mesh fabric; 4. Cleaning device; 41. Guide rail assembly; 411. Guide rail; 42. Conveyor belt; 43. Drive mechanism; 431. Shaft B; 432. Gear B; 433. Motor reducer; 44. Shaft A; 45. Striking hammer; 46. Rack; 47. Scraper; 48. Brush; 49. Gear A. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] like Figures 1-5 The multi-functional directional broadcast system shown includes a housing 1, the front side of which is a perforated mesh plate 11 with a porous structure. A directional sound-emitting integrated plate 2 is installed inside the housing. The multi-functional directional broadcast system emits directional sound to the outside through this directional sound-emitting integrated plate 2. Simultaneously, to prevent external dust from entering the speaker on the directional sound-emitting integrated plate 2, a mesh fabric 3 is stretched between the perforated plate 11 and the directional sound-emitting integrated plate 2 to block external dust.

[0027] It is important to know that since this solution is typically used along roadsides, vehicles kick up dust that falls onto the mesh when they pass by. When the humidity in the air is high, the dust that falls onto the mesh will harden and clog the mesh, affecting the outward propagation of directional sound waves.

[0028] To this end, a cleaning device 4 is also installed on the shell to apply a periodic tap to the mesh fabric, thereby shaking off the dust that has not hardened and ensuring the cleanliness of the mesh fabric.

[0029] In this design, the cleaning device 4 includes two sets of guide rails 41, which are arranged parallel to each other on both sides of the housing. It should be noted that each guide rail set consists of two guide rails 411, which are respectively fixed to the perforated plate 11 and the directional sound-generating integrated plate 2, and are arranged parallel to each other. A conveyor belt 42 is installed within the guide rail set 41. This conveyor belt is a toothed belt, and while being guided and constrained by the guide grooves on the guide rails, it can also run along the guide grooves. In this design, the conveyor belt 42 passes through the mesh fabric 3. Furthermore, a drive mechanism 43 is installed on the directional sound-generating integrated plate 2. This drive mechanism is connected to the two conveyor belts 42 to drive their forward and reverse rotation. Figure 5 As shown, a rotating shaft A44 is rotatably mounted between the two conveyor belts 42. After being connected to the two conveyor belts, the shaft A can move synchronously with them. Several striking hammers 45 are mounted on the shaft A. These hammers strike the mesh fabric regularly as the shaft A rotates, causing the mesh fabric to vibrate. It should be noted that, to ensure the shaft A not only moves with the conveyor belts but also rotates synchronously when the conveyor belts 42 move in both directions, a head rack 46 is also mounted on the directional sound-generating integrated plate 2. This rack extends along the running direction of the conveyor belts and meshes with gears A49 located at both ends of the shaft A44. When the shaft A moves vertically due to the movement of the conveyor belts, relative movement occurs between gear A and the rack. The rack drives gear A to rotate, thereby causing the striking hammers on the shaft A to strike the mesh fabric regularly.

[0030] It's important to know that, in order to increase the striking frequency, the hammers on shaft A are staggered. That is, the hammers in adjacent rotations are offset at a certain angle. This increases the number of hammers striking the mesh at staggered intervals when the shaft rotates once.

[0031] It should also be noted that a scraper 47 is provided between the perforated plate and the mesh fabric. Both ends of the scraper are fixedly connected to two conveyor belts so that it can move up and down with the conveyor belts. The blade of the scraper is attached to the inner surface of the perforated plate 11 to remove dust adhering to the inner surface of the perforated plate as the scraper moves up and down. Preferably, the blade of the scraper can be made of elastic silicone to prevent damage to the perforated plate. To discharge the hanging dust and dust shaken off the mesh fabric, a discharge port 12 is provided in the lower part of the housing 1 between the perforated plate and the mesh fabric.

[0032] As a preferred embodiment, based on the above scheme, a brush 48 is also provided on the side of the scraper 47 facing the mesh fabric 3. The brush is pressed against the mesh fabric with relatively light pressure. When the scraper moves up and down under the drive of the conveyor belt, the brush also brushes the outer surface of the mesh fabric to further remove dust from the mesh fabric.

[0033] Finally, it should be noted that the drive mechanism 43 used in this solution includes two rotatable shafts B431 mounted in the housing 1, which are arranged parallel to each other at both ends of the guide rail. At both ends of the shafts B are coaxially mounted gears B432, which mesh with the conveyor belt. One of the shafts B is also connected to a small motor reducer 433 mounted on the directional sound-generating integrated plate 2. The rotation of the motor reducer drives the rotation of the shafts B, thereby driving the conveyor belt.

[0034] Working principle: When the multi-functional directional broadcast is used, the cleaning device 4 installed in the housing 1 of the multi-functional directional broadcast works periodically to clean the dust on the mesh 3 and the perforated plate 11.

[0035] Specifically, the motor reducer 433 in the cleaning device can rotate periodically in both directions. As the motor reducer rotates in both directions, the conveyor belt 42 is also driven to move in both directions, which in turn drives the rotating shaft A and the scraper 47 on the conveyor belt to move up and down. During the up-and-down movement, the scraper removes dust from the inner surface of the mesh plate, while the brush on the back of the scraper sweeps away dust from the outer surface of the mesh. It should be noted that during the up-and-down movement of the rotating shaft A, the gears A at both ends move relative to the rack, and the rack drives the rotating shaft A to rotate. As the rotating shaft A rotates, the striking hammer on the rotating shaft A strikes the mesh regularly. The vibration caused by this striking dislodges dust from the mesh, preventing dust from hardening and clogging the mesh. Through this structure, the smooth transmission of multi-functional directional broadcast sound is effectively ensured.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional directional broadcasting system with self-cleaning function, characterized in that: include A housing (1), wherein a perforated plate (11) is provided on the front side of the housing (1); A directional sound-generating integrated board (2) is installed in the housing (1); The mesh fabric (3) is laid between the perforated plate (11) and the directional sound-generating integrated plate (2); A cleaning device (4) is installed in the housing (1) to periodically tap the mesh (3) to shake off the dust accumulated on the mesh (3).

2. A multi-functional directional broadcasting system with self-cleaning function as described in claim 1, characterized in that: The cleaning device (4) includes two sets of parallel guide rails (41) arranged on both sides of the housing (1). Each guide rail (41) includes two guide rails (411), which are respectively arranged on the inner side of the mesh plate (11) and the directional sound-emitting integrated plate (2). The two guide rails (411) are parallel and opposite to each other. Conveyor belts (42) are slidably installed in each of the two sets of guide rails (41). The conveyor belts (42) pass through the mesh fabric (3). A drive mechanism (43) is provided on the directional sound-emitting integrated plate (2). The drive mechanism (43) is connected to the two guide rails (411) respectively. The conveyor belt (42) is driven to move in the guide rail group (41). A rotating shaft A (44) is rotatably mounted between the two conveyor belts (42). The rotating shaft A (44) is located between the directional sound-generating integrated plate (2) and the mesh (3). Several hammers (45) are distributed on the rotating shaft A (44). Gears A (49) are provided at both ends of the rotating shaft A (44). A rack (46) extending along the movement direction of the conveyor belt (42) is provided on the directional sound-generating integrated plate (2). The gears A (49) mesh with the rack (46).

3. A multifunctional directional broadcasting system with self-cleaning function as described in claim 2, characterized in that: The hammers (45) on the rotating shaft A (44) are misaligned.

4. A multi-functional directional broadcasting system with self-cleaning function as described in claim 3, characterized in that: A scraper (47) is also provided between the perforated plate (11) and the mesh (3). The two ends of the scraper (47) are fixedly connected to two conveyor belts (42) respectively. The blade of the scraper (47) is set in contact with the inner surface of the perforated plate (11). A discharge port (12) is opened at the lower part of the housing (1) between the perforated plate (11) and the mesh (3).

5. A multifunctional directional broadcasting system with self-cleaning function as described in claim 4, characterized in that: The scraper (47) is also provided with a brush (48) on the side facing the mesh (3), and the brush (48) lightly touches the mesh (3).

6. A multi-functional directional broadcasting system with self-cleaning function as described in claim 5, characterized in that: The drive mechanism (43) includes two rotatable shafts B (431) disposed in the housing (1). Gears B (432) are respectively disposed at both ends of the shafts B (431). The gears B (432) mesh with the conveyor belt (42). One of the shafts B (431) drives the motor reducer (433).

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