An easy-to-install megaphone

Abstract

This utility model discloses an easy-to-install megaphone, specifically relating to the field of megaphone technology. It includes a square plate with a speaker fixed to one side wall and a mounting bracket fixed to the other side wall. A spring telescopic rod is installed on the inner wall of the mounting bracket, and a top block is fixed to the end of the spring telescopic rod. A mounting plate is fixed to the inner wall of the mounting bracket. Multiple anti-slip grooves are formed on the surface of the mounting plate. By moving the top block backward, the spring telescopic rod retracts, and the mounting body is placed between the top block and the mounting plate. Then, the movement of the top block stops, and the spring telescopic rod automatically extends, causing the surface of the top block to contact the mounting body and push it against the surface of the mounting plate, thus completing the fixation. This design can accommodate mounting bodies of different shapes, reducing the risk of the megaphone falling and being damaged due to incompatible mounting components.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker technology, and more specifically, to a loudspeaker that is easy to install. Background Technology

[0002] A loudspeaker is an electronic device that amplifies and outputs audio signals. Its core function is to enhance sound loudness and expand the range of sound transmission through a built-in power amplifier circuit. It typically consists of a microphone, audio amplifier, speaker, and power supply, and can amplify weak signals such as speech and music for playback. Based on application, loudspeakers are categorized into educational loudspeakers, professional stage loudspeakers, and public address loudspeakers; especially in noisy environments or large spaces, they can make sound clearer, cover a wider area, and improve information transmission efficiency.

[0003] Existing publication number CN210745557U discloses an easy-to-install teaching megaphone, including a base and a megaphone body. Four support columns are fixedly installed at the bottom of the base. First springs are fixedly installed on both the left and right sides of the base. Sliding plates are fixedly installed on opposite sides of the two first springs. Pullers are fixedly installed on the top and bottom of the sliding plates. A locking plate is fixedly installed on the side of the sliding plate away from the first springs. A first pull rod is fixedly installed on the top of the locking plate. A sliding block is fixedly installed at the top of the first pull rod. A second pull rod is fixedly installed on the top of the sliding block. This easy-to-install teaching megaphone simplifies the installation process, avoids the megaphone tipping over due to vibration, prevents damage to the megaphone, and allows teachers to conduct classroom teaching effectively, thereby improving the quality of teaching. The inventors discovered the following problems with the existing technology during the development of this utility model:

[0004] Existing loudspeakers can only be installed on fixtures of the same shape. When installing on fixtures of different shapes, the installation is unstable due to the incompatibility of the fixing components, which may cause the loudspeaker to fall and be damaged.

[0005] Therefore, a loudspeaker that is easy to install is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an easy-to-install loudspeaker to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-install megaphone, comprising a square plate, a speaker fixedly connected to one side wall of the square plate; a fixing frame fixedly connected to the other side wall of the square plate; a spring telescopic rod installed on the inner side wall of the fixing frame; a top block fixedly connected to the end of the spring telescopic rod; a fixing plate fixedly connected to the inner side wall of the fixing frame; and multiple anti-slip grooves formed on the surface of the fixing plate.

[0008] Preferably, the top block has a cavity inside; multiple elastic components are fixedly connected inside the top block; a limiting post is fixedly connected to the end of each elastic component; the limiting post and the top block are in a sliding relationship.

[0009] Preferably, a plurality of rubber rings are fixedly attached to the surface of the top block; the rubber rings are wrapped around the outer wall of the limiting post.

[0010] Preferably, the ends of the plurality of limiting posts are provided with gaskets; the gaskets are fixedly connected to the limiting posts.

[0011] Preferably, an elastic cloth is fixedly connected to the inner side wall of the fixing frame; the end of the elastic cloth is fixedly connected to the top block; and the elastic cloth is wrapped around the surface of the spring telescopic rod.

[0012] Preferably, a handrail is fixed to the side wall of the top block; the handrail is located near the middle of the side wall of the top block.

[0013] Preferably, a waterproof cover is fixed to the side wall of the square plate; the square plate is located in the middle of the waterproof cover.

[0014] Preferably, a filter screen is installed at the end of the waterproof cover, and the surface of the filter screen has multiple square holes.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared with existing technologies, this easy-to-install megaphone works by moving the top block backward, at which point the spring telescopic rod retracts, and then placing the fixing body in the middle of the top block and the fixing plate. After stopping the movement of the top block, the spring telescopic rod automatically extends, and the surface of the top block contacts the fixing body, pushing the fixing body onto the surface of the fixing plate to complete the fixation. This setting can accommodate fixing bodies of different shapes and can reduce the possibility of the megaphone falling and being damaged due to incompatible fixing components.

[0017] Compared with existing technologies, this easy-to-install megaphone uses limiting posts to limit the fixed body. During fixing, the top of the limiting post can first contact the fixed body. Since there are multiple limiting posts, the limiting post that touches the fixed body can retract backward, causing the elastic component to be squeezed and deformed to generate elastic potential energy. The limiting post that does not touch the fixed body does not move, thus limiting the fixed body. This setting can limit the fixed body and make it fit tightly against the fixing plate, further improving the stability of the device during fixing. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a schematic diagram of the limiting post of this utility model.

[0020] Figure 3 This is a schematic diagram showing the cooperation between the elastic component and the limiting post of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the elastic fabric of this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the waterproof cover of this utility model.

[0023] The attached diagram is labeled as follows: 1. Square plate; 11. Horn; 12. Fixing frame; 13. Spring telescopic rod; 14. Top block; 15. Fixing plate; 16. Anti-slip groove; 2. Cavity; 21. Elastic component; 22. Limiting post; 3. Rubber ring; 4. Gasket; 5. Elastic cloth; 6. Handrail; 7. Waterproof cover; 8. Filter screen; 81. Square hole. Detailed Implementation

[0024] 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. Example 1

[0025] As attached Figures 1 to 5 The amplifier shown is easy to install and includes a square plate 1. A speaker 11 is fixed to one side wall of the square plate 1. A fixing frame 12 is fixed to the other side wall of the square plate 1. A spring telescopic rod 13 is installed on the inner side wall of the fixing frame 12. A top block 14 is fixed to the end of the spring telescopic rod 13. A fixing plate 15 is fixed to the inner side wall of the fixing frame 12. A plurality of anti-slip grooves 16 are formed on the surface of the fixing plate 15.

[0026] When installing the device, first move the top block 14 backward, at which point the spring telescopic rod 13 retracts. Then, place the fixing body between the top block 14 and the fixing plate 15, and then stop moving the top block 14. At this time, the spring telescopic rod 13 automatically extends, and the surface of the top block 14 contacts the fixing body, pushing the fixing body onto the surface of the fixing plate 15 to complete the fixing. This setting can accommodate fixing bodies of different shapes and can reduce the possibility of the loudspeaker falling and being damaged due to incompatible fixing components. Example 2

[0027] Based on Example 1, the solution in Example 1 will be further described in detail below with reference to the specific working method, such as... Figures 1 to 5 As shown below, see details:

[0028] In a preferred embodiment, the top block 14 has a cavity 2 inside; multiple elastic components 21 are fixedly connected inside the top block 14; a limiting post 22 is fixedly connected to the end of the elastic component 21; the limiting post 22 and the top block 14 are in a sliding relationship; furthermore, when the top block 14 contacts the surface of the fixed body, the top of the limiting post 22 can contact the fixed body first. Since there are multiple limiting posts 22, the limiting post 22 that contacts the fixed body can retract backward, causing the elastic component 21 to be squeezed and deformed to generate elastic potential energy. The limiting post 22 that does not contact the fixed body will not move, thus limiting the fixed body. This setting can limit the fixed body, so that the fixed body fits tightly against the fixing plate 15, further improving the stability of the device when it is fixed.

[0029] In a preferred embodiment, a plurality of rubber rings 3 are fixedly attached to the surface of the top block 14; the rubber rings 3 wrap around the outer wall of the limiting post 22; furthermore, when the limiting post 22 extends or retracts, the rubber rings 3 adhere to the surface of the limiting post 22, which can reduce the occurrence of external dust and water stains being brought back to the middle of the cavity 2 by the limiting post 22, thus preventing rust in the middle of the cavity 2 and improving the service life of the equipment.

[0030] In a preferred embodiment, the ends of the multiple limiting posts 22 are provided with gaskets 4; the gaskets 4 are fixedly connected to the limiting posts 22; furthermore, this arrangement can reduce scratches and abrasions caused by friction when the limiting posts 22 fix the fixed body. At the same time, since the gaskets 4 are made of rubber, when the ends of the limiting posts 22 come into contact with the fixed body, the gaskets 4 are squeezed and deformed to further fit the surface of the fixed body, enhancing the stability during fixation.

[0031] In a preferred embodiment, an elastic cloth 5 is fixedly connected to the inner wall of the fixing frame 12; the end of the elastic cloth 5 is fixedly connected to the top block 14; the elastic cloth 5 is wrapped around the surface of the spring telescopic rod 13; furthermore, when the spring telescopic rod 13 extends or retracts, the elastic cloth 5 can automatically contract and extend. This setting can reduce the problem of external dust, water stains and other impurities entering the middle of the spring telescopic rod 13, causing the spring telescopic rod 13 to malfunction.

[0032] In a preferred embodiment, a handrail 6 is fixedly connected to the side wall of the top block 14; the handrail 6 is located near the middle of the side wall of the top block 14; furthermore, when the top block 14 is moved, the top block 14 can be moved by the handrail 6, and the handrail 6 improves the convenience of the device during installation.

[0033] In a preferred embodiment, a waterproof cover 7 is fixed to the side wall of the square plate 1; the horn 11 is located in the middle of the waterproof cover 7; furthermore, the waterproof cover 7 can be installed on the outside of the horn 11. When the horn 11 is used outside, the waterproof cover 7 can block rainwater from reaching the outside of the horn 11, reducing the possibility of rainwater entering the inside of the horn 11 and causing the horn 11 to malfunction.

[0034] In a preferred embodiment, a filter screen 8 is installed at the end of the waterproof cover 7. The surface of the filter screen 8 has multiple square holes 81. Furthermore, the filter screen 8 can protect the speaker 11 by directly blocking dust, rainwater, and foreign objects from entering the speaker 11, thus preventing damage to the inside of the device. At the same time, when the speaker 11 plays, the sound is transmitted to the outside through the square holes 81 without affecting the performance of the speaker 11 itself.

[0035] In this embodiment, the horn 11 and the spring telescopic rod 13 are both commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, so we will not go into detail here.

[0036] The working process of this utility model is as follows: First, when installing the device, the top block 14 can be moved by the handle 6. At this time, the spring telescopic rod 13 retracts, and the elastic cloth 5 can automatically retract and extend. Then, the fixing body is placed in the middle of the top block 14 and the fixing plate 15. Then, the movement of the top block 14 is stopped. At this time, the spring telescopic rod 13 automatically extends, and the surface of the top block 14 contacts the fixing body, pushing the fixing body to the surface of the fixing plate 15. When the top block 14 contacts the surface of the fixing body, the top of the limiting post 22 can first contact the fixing body. Since there are multiple limiting posts 22, the limiting post 22 that touches the fixing body can retract backward. The pad on the surface of the limiting post 22 As the plate 4 is squeezed and deformed, it adheres further to the surface of the fixed body. At this time, when the limiting post 22 contracts, the rubber ring 3 adheres to the surface of the limiting post 22, scraping away the dust and water stains on the surface of the limiting post 22. At the same time, the elastic component 21 is squeezed and deformed to generate elastic potential energy. The limiting post 22 that does not contact the fixed body will not move, thus limiting and fixing the fixed body. Subsequently, the waterproof cover 7 can be installed on the outside of the speaker 11. When the speaker 11 is used outside, the waterproof cover 7 can block rainwater from reaching the outside of the speaker 11. The filter screen 8 can protect the speaker 11 by directly blocking dust, rainwater, and foreign objects from entering the speaker 11, thus avoiding damage to the inside of the equipment. The above is the working principle of this easy-to-install loudspeaker.

Claims

1. A loudspeaker for easy installation comprising a square panel (1), characterised in that: A horn (11) is fixed to one side wall of the square plate (1); a fixing frame (12) is fixed to the other side wall of the square plate (1); a spring telescopic rod (13) is installed on the inner side wall of the fixing frame (12); a top block (14) is fixed to the end of the spring telescopic rod (13); a fixing plate (15) is fixed to the inner side wall of the fixing frame (12); and multiple anti-slip grooves (16) are provided on the surface of the fixing plate (15).

2. A loudspeaker for easy installation according to claim 1, characterized in that: The top block (14) has a cavity (2) inside; multiple elastic components (21) are fixed inside the top block (14); a limiting post (22) is fixed at the end of the elastic component (21); the limiting post (22) and the top block (14) are in a sliding relationship.

3. A conveniently mountable loudspeaker according to claim 2, characterised in that: Multiple rubber rings (3) are fixed to the surface of the top block (14); the rubber rings (3) are wrapped around the outer wall of the limiting post (22).

4. A conveniently mountable loudspeaker according to claim 2, characterized in that: Each of the limiting posts (22) has a gasket (4) at its end; the gasket (4) is fixedly connected to the limiting post (22).

5. A conveniently mountable loudspeaker according to claim 1, characterized in that: An elastic cloth (5) is fixed to the inner wall of the fixing frame (12); the end of the elastic cloth (5) is fixed to the top block (14); the elastic cloth (5) is wrapped around the surface of the spring telescopic rod (13).

6. The easy-to-install megaphone according to claim 3, characterized in that: A handrail (6) is fixed to the side wall of the top block (14); the handrail (6) is located near the middle of the side wall of the top block (14).

7. A loudspeaker that is easy to install according to claim 1, characterized in that: A waterproof cover (7) is fixed to the side wall of the square plate (1); the square plate (1) is located in the middle of the waterproof cover (7).

8. A loudspeaker that is easy to install according to claim 7, characterized in that: The waterproof cover (7) is equipped with a filter screen (8) at its end. The surface of the filter screen (8) has multiple square holes (81).

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