A public address device which is easy to install

Abstract

The utility model relates to the field of electronic information discloses a public broadcasting device convenient to installation, including bottom plate and public broadcasting body, both sides of bottom plate all are fixedly connected with shell, the one side of two shell bottom is equipped with two strip grooves, the top of two shell inner wall is inserted with the plug -in block, two plug -in blocks are fixedly connected respectively in the both sides of public broadcasting body bottom, the inner wall of plug -in block is equipped with the slot, both sides of shell inner wall bottom all are connected with the clamping piece of sliding, the middle part of shell inner wall bottom is fixedly connected with fixed block, both sides of fixed block all are fixedly connected with spring no.

Description

Technical Field

[0001] This utility model relates to the field of electronic information, and in particular to a public address device that is easy to install. Background Technology

[0002] A public address system is a system that transmits voice, music, or instructions to a specific area via wired or wireless transmission. It typically consists of audio source equipment, signal processing equipment, transmission lines, and loudspeakers. It is used for daily information broadcasting and also serves as an emergency warning system in case of emergencies. It is a crucial infrastructure for ensuring smooth information flow and safety management in public areas and is widely used in public services, security, transportation, and many other fields.

[0003] However, existing public address systems have limitations. First, they are often installed using fasteners such as bolts, requiring tools for installation and disassembly, which slows down the installation process and is inconvenient. Second, they lack efficient heat dissipation structures, preventing them from cooling down quickly when the temperature is too high, leading to sound degradation and accelerated aging of core components. Therefore, a public address system that is easy to install is proposed to solve these problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a public address device that is easy to install, aiming to improve the problems of existing public address devices lacking a quick installation structure and an efficient heat dissipation structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a public address device that is easy to install, comprising a base plate and a public address body. Both sides of the base plate are fixedly connected to outer shells. Two strip-shaped grooves are formed on one side of the bottom of the two outer shells. Insert blocks are inserted into the top of the inner walls of the two outer shells. The two insert blocks are respectively fixedly connected to both sides of the bottom end of the public address body. Slots are formed in the inner walls of the insert blocks. Clips are slidably connected to both sides of the bottom end of the inner walls of the outer shells. A fixing block is fixedly connected to the middle of the bottom end of the inner walls of the outer shells. Springs are fixedly connected to both sides of the fixing blocks. Lifting springs are fixedly connected to both sides of the top of the base plate. A groove is formed on one side of the surface of the base plate. A horizontal plate is provided on the inner wall of the groove. An air diffuser shell is fixedly installed on the front side of the horizontal plate. A fan is fixedly installed in the middle of the horizontal plate. Multiple air outlets are formed on the front of the air diffuser shell. A handle is fixedly connected to one side of the clips.

[0006] As a further description of the above technical solution:

[0007] A sleeve is fixedly connected to the middle of the top of the air-expanding shell, a second spring is fixedly connected to the inner wall of the sleeve, a hook is fixedly connected to one end of the second spring, and a limiter is fixedly connected to the top of the public address system.

[0008] As a further description of the above technical solution:

[0009] The hook engages with the inner wall of the limiting member, and the hook slides on the inner wall of the housing.

[0010] As a further description of the above technical solution:

[0011] One end of the spring is fixedly connected to the card, and the top of the card engages with the inner wall of the slot.

[0012] As a further description of the above technical solution:

[0013] The handle slides on the inner wall of the strip groove, and the top of the clip is a slope.

[0014] As a further description of the above technical solution:

[0015] The back of the public address system is fixedly equipped with heat sinks, and multiple air outlets are evenly distributed in a matrix on the surface of the air diffuser shell.

[0016] As a further description of the above technical solution:

[0017] The bottom of the air-expanding shell is located inside the groove, and one side of the horizontal plate and one side of the air-expanding shell respectively abut against the two sides of the inner wall of the groove.

[0018] As a further description of the above technical solution:

[0019] The bottom end of the lifting spring is fixedly connected to the top end of the base plate, and the top end of the lifting spring abuts against the public address system.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when the operator needs to install the public address system, the plug at the bottom of the system is inserted into the outer shell, and the clip inside the outer shell is engaged in the slot, which can fix the public address system on the base plate, realizing the quick installation of the system. When disassembling, simply squeeze the two handles to move them relative to each other, so that the clips can be disengaged from the slots and the lock can be released, which improves the operator's disassembly and assembly speed and is more convenient.

[0022] 2. In this utility model, when the operator needs to enhance the heat dissipation effect of the public address system, the fan at the back of the system is turned on. At this time, the airflow will be evenly blown onto the system and the heat sink on the back through the air outlet, which improves the heat dissipation efficiency of the public address system and prevents the sound from deteriorating and the core components from aging due to excessive temperature. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a public address system that is easy to install, as proposed in this utility model.

[0024] Figure 2 This is a rear view schematic diagram of a public address device that is easy to install according to the present invention;

[0025] Figure 3 This is a schematic diagram of the base plate of a public address system that is easy to install, as proposed in this utility model.

[0026] Figure 4 This is a schematic diagram of the exploded structure at the fan of a public address device that is easy to install, as proposed in this utility model.

[0027] Figure 5 This is a partial cross-sectional structural diagram of the clip of a public address device that is easy to install, as proposed in this utility model.

[0028] Figure 6 This is a schematic diagram of the exploded structure at the hook of a public address device that is easy to install, as proposed in this utility model.

[0029] Legend:

[0030] 1. Public address system body; 2. Base plate; 3. Outer shell; 4. Horizontal plate; 5. Cover; 6. Insert block; 7. Groove; 8. Slot; 9. Expansion shell; 10. Clip; 11. Spring 1; 12. Fixing block; 13. Handle; 14. Limiting component; 15. Hook; 16. Air outlet; 17. Fan; 18. Spring 2; 19. Lifting spring; 20. Heat sink; 21. Strip groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-6This utility model provides an embodiment of a public address system that is easy to install. It includes a base plate 2 and a public address system body 1. The base plate 2 provides a supporting foundation for the entire system, enhancing its stability. Both sides of the base plate 2 are fixedly connected to outer shells 3, which protect the internal connecting components. Two strip grooves 21 are formed on one side of the bottom of the two outer shells 3, guiding the sliding of handles 13. Inserts 6 are inserted into the top of the inner walls of the two outer shells 3, fixing the position of the public address system body 1. The two inserts 6 are fixedly connected to both sides of the bottom of the public address system body 1, allowing part of its weight to be transferred to the base plate 2, improving the stability of the system. Slots 8 are formed in the inner walls of the inserts 6. Clips 10 are slidably connected to both sides of the bottom of the inner walls of the outer shells 3. The shape of the inner walls of the slots 8 matches the top of the clips 10, serving as clips. The locking mechanism of component 10 provides a robust docking structure. A fixing block 12 is fixedly connected to the middle of the bottom of the inner wall of the outer shell 3. Springs 11 are fixedly connected to both sides of the fixing block 12. The fixing block 12 provides mounting points for the springs 11. Lifting springs 19 are provided on both sides of the top of the base plate 2. The lifting springs 19 can apply an upward supporting force to the public address system 1. The elasticity of the lifting springs 19 can assist in the disassembly of the system. A groove 7 is provided on one side of the surface of the base plate 2. A horizontal plate 4 is provided on the inner wall of the groove 7. An air expansion shell 9 is fixedly installed on the front side of the horizontal plate 4. A fan 17 is fixedly installed in the middle of the horizontal plate 4. The groove 7 provides installation space for the air expansion shell 9 and the horizontal plate 4. Multiple air outlets 16 are provided on the front of the air expansion shell 9. The air outlets 16 can blow the airflow of the fan 17 evenly, expanding the heat dissipation range and improving the heat dissipation effect. A handle 13 is fixedly connected to one side of the locking component 10. The handle 13 facilitates the operator to move the locking component 10.

[0033] Reference Figure 1 , Figure 4 and Figure 6 A sleeve 5 is fixedly connected to the middle of the top of the expansion shell 9. The sleeve 5 provides installation space for the second spring 18 and the hook 15, ensuring the stability of the engagement structure. The second spring 18 is fixedly connected to the inner wall of the sleeve 5. The hook 15 is fixedly connected to one end of the second spring 18. The top of the public address body 1 is fixedly connected to the limiting member 14. When the hook 15 engages with the limiting member 14, the expansion shell 9 can be fixed to the public address body 1.

[0034] Reference Figure 1 , Figure 4 and Figure 6 The hook 15 engages with the inner wall of the limiting member 14, fixing the public address body 1 to the ventilation shell 9. The hook 15 slides on the inner wall of the shell 5, and the shell 5 can guide the sliding of the hook 15.

[0035] Reference Figure 5One end of the spring 11 is fixedly connected to the clip 10, and the top of the clip 10 is engaged with the inner wall of the slot 8, which can make the insert 6 firmly connected to the outer shell 3 and prevent the insert 6 from moving up and down inside the outer shell 3.

[0036] Reference Figure 1 and Figure 5 The handle 13 slides on the inner wall of the strip groove 21, thereby ensuring the accurate movement direction of the clip 10. The top of the clip 10 is a slope. The slope design allows the clip 10 to automatically retract and lock into the slot 8 when the insert block 6 is inserted into the outer shell 3, which improves the installation efficiency.

[0037] Reference Figure 2 and Figure 3 A heat sink 20 is fixedly installed on the back of the public address system 1. The heat sink 20 has good thermal conductivity and can accelerate the dissipation of heat from the public address system 1. Multiple air outlets 16 are evenly distributed in a matrix on the surface of the air diffuser shell 9. The matrix-distributed air outlets 16 can make the airflow blow evenly towards the public address system 1 from multiple directions, thereby improving its heat dissipation effect.

[0038] Reference Figure 4 and Figure 5 The bottom of the air diffuser shell 9 is set inside the groove 7. The groove 7 can enhance the stability of the air diffuser shell 9 installation. One side of the horizontal plate 4 and one side of the air diffuser shell 9 respectively abut against the two sides of the inner wall of the groove 7, which can improve the stability of the structure at the horizontal plate 4 and the air diffuser shell 9, and at the same time increase the airflow guidance range.

[0039] Reference Figures 1-3 The bottom end of the lifting spring 19 is fixedly connected to the top end of the base plate 2, and the top end of the lifting spring 19 abuts against the public address body 1. When it is necessary to remove the public address body 1, the insert 6 can be disengaged from the outer shell 3 by simultaneously squeezing the handle 13 inward. At this time, the compression bag lifting spring 19 can push the public address body 1 upward for easy disassembly.

[0040] Working principle: When the operator installs the public address system 1 on the base plate 2, the insert 6 at the bottom of the public address system 1 is inserted into the inner wall of the outer shell 3. During the downward movement of the insert 6, it will press the inclined surface at the top of the clip 10, causing the two clips 10 to slide relative to each other. When the slot 8 on the inner wall of the insert 6 is aligned with the clip 10, the elastic force of the spring 11 will push the clip 10 to return to its original position, so that the top of the clip 10 is engaged in the slot 8, locking the insert 6 in the outer shell 3, thereby achieving a stable connection between the public address system 1 and the base plate 2. When disassembling, simply squeeze the two handles 13 to move them relative to each other, so that the clip 10 is disengaged from the slot 8, and the lock can be released. The operation is convenient.

[0041] By activating the fan 17, airflow is generated. After entering the air diffuser 9, the airflow is blown out through its air outlet 16. This airflow blows directly onto the public address system 1 and the heat sink 20 on its back. The heat sink 20 improves heat dissipation efficiency. Through the heat sink 20 and the fan 17, the heat dissipation speed of the public address system 1 can be accelerated, avoiding sound degradation and accelerated aging of core components due to excessive temperature.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A public address device for easy installation comprising a base plate (2) and a public address body (1), characterized in that: Both sides of the base plate (2) are fixedly connected to the outer shell (3). Two strip grooves (21) are opened on one side of the bottom of the two outer shells (3). Insert blocks (6) are inserted into the top of the inner wall of the two outer shells (3). The two insert blocks (6) are respectively fixedly connected to the two sides of the bottom end of the public broadcast body (1). The inner wall of the insert block (6) is provided with a slot (8). The two sides of the bottom end of the inner wall of the outer shell (3) are slidably connected to the clips (10). The middle of the bottom end of the inner wall of the outer shell (3) is fixedly connected to the fixing block (12). Springs (11) are fixedly connected to both sides of the fixed block (12), and lifting springs (19) are fixedly connected to both sides of the top of the base plate (2). A groove (7) is provided on one side of the surface of the base plate (2). A horizontal plate (4) is provided on the inner wall of the groove (7). An air expansion shell (9) is fixedly installed on the front side of the horizontal plate (4). A fan (17) is fixedly installed in the middle of the horizontal plate (4). Multiple air outlets (16) are provided on the front of the air expansion shell (9). A handle (13) is fixedly connected to one side of the clip (10).

2. A public address system according to claim 1, wherein: A sleeve (5) is fixedly connected to the middle of the top of the air-expanding shell (9), and a spring (18) is fixedly connected to the inner wall of the sleeve (5). A hook (15) is fixedly connected to one end of the spring (18), and a limiter (14) is fixedly connected to the top of the public broadcast body (1).

3. A public address system according to claim 2, wherein: The hook (15) engages with the inner wall of the limiting member (14) and slides on the inner wall of the housing (5).

4. The public address system of claim 1, wherein: One end of the spring (11) is fixedly connected to the card (10), and the top of the card (10) engages with the inner wall of the slot (8).

5. The easily installed public address system of claim 1, wherein: The handle (13) slides on the inner wall of the groove (21), and the top of the clip (10) is an inclined surface.

6. The easily installed public address system of claim 1, wherein: The public address system (1) has a heat sink (20) fixedly installed on its back, and multiple air outlets (16) are evenly distributed in a matrix on the surface of the air diffuser shell (9).

7. The easily installed public address system of claim 1, wherein: The bottom of the air-expanding shell (9) is located inside the groove (7), and one side of the horizontal plate (4) and one side of the air-expanding shell (9) abut against the two sides of the inner wall of the groove (7).

8. The easily installed public address system of claim 1, wherein: The bottom end of the lifting spring (19) is fixedly connected to the top end of the base plate (2), and the top end of the lifting spring (19) abuts against the public address body (1).

Images