Portable key buzzer

Abstract

The utility model discloses a portable key buzzer, which comprises a shell, a power supply, keys and a buzzer, and is characterized in that the power supply, the keys and the buzzer are electrically connected; the shell is in a cuboid shape, and the power source is installed in the shell. Main bodies of the keys and the buzzer are both mounted in the shell, and the keys and the buzzer penetrate through preset through holes in the top surface of the shell to extend to the outer end; a plurality of interfaces are arranged on one side surface of the shell and are used for being connected with external keys or short-wave radio stations; the power supply is used for supplying power to the buzzer; and the buzzer is used for producing a corresponding Morse code sound when a user presses the key or an externally accessed key.

Description

Technical Field

[0001] This utility model relates to the field of code training equipment technology, and in particular to a portable key buzzer. Background Technology

[0002] Due to its special significance, some people still need to learn Morse code and practice sending messages in it. Currently, a commonly used Morse code training device is the JX-5 Morse code trainer. However, this device is expensive, heavy, and requires an external 220V AC power supply, making it inconvenient to use in different environments. Furthermore, because Morse code is difficult to memorize, and beginners often struggle to control the key press duration and time intervals when sending messages, leading to errors and resulting in low learning efficiency. Utility Model Content

[0003] To address the problems mentioned in the background section, the present invention provides the following technical solution: a portable key buzzer, comprising a housing, a power supply, a button, and a buzzer, wherein the power supply, the button, and the buzzer are electrically connected.

[0004] The outer casing is rectangular in shape, and the power supply is installed inside the outer casing;

[0005] The main bodies of the button and the buzzer are both installed inside the housing, and the button and the buzzer extend to the outside through a pre-set through hole on the top surface of the housing.

[0006] The outer casing has several interfaces on one side for connecting to an external key or shortwave radio.

[0007] The power supply is used to power the buzzer;

[0008] The buzzer is used to produce a corresponding Morse code tone when the user presses a button or an externally connected key.

[0009] In some embodiments, a volume adjustment knob located next to the buzzer is also included for adjusting the volume of the buzzer.

[0010] In some embodiments, the interface uses a 6.5mm two-pin socket for use with a two-pin audio cable to enable connection to an external key or shortwave radio.

[0011] In some embodiments, the power source is a 9V rechargeable lithium battery, and a Type-C charging port is also provided on the other side of the housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the portable key buzzer provided by this utility model has a simple structure, is small and portable; has a long service life and is easy to maintain; is easy to operate and can be used immediately; does not require an external power supply and can be used at fixed stations, and is also very suitable for use by mobile stations during field training; has Morse code sound playback function, and does not require wiring when producing sound, and can be used directly, which is conducive to improving the learning efficiency of Morse code. Attached Figure Description

[0013] Figure 1 A schematic diagram of the portable key buzzer provided by this utility model;

[0014] Figure 2 A schematic diagram showing the connection between the portable key buzzer provided by this utility model and an external key;

[0015] Figure 3 A schematic diagram of the circuit principle of the portable key buzzer provided by this utility model.

[0016] Explanation of icon numbers:

[0017] 1. Outer casing; 2. Buttons; 3. Buzzer; 4. Interface; 5. Adjustment knob; 6. Switch; 7. Two-core audio cable; 8. Power supply. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with the accompanying drawings and specific embodiments, further explains how this utility model is implemented.

[0019] Reference Figure 1 and Figure 2 As shown, this utility model provides a portable key buzzer, including a housing 1, a power supply 8, a button 2, and a buzzer 3, which are electrically connected. The housing 1 is rectangular in shape, and the power supply 8 is installed inside the housing 1. The main bodies of the button 2 and the buzzer 3 are both installed inside the housing 1, and the button 2 and the buzzer 3 extend to the outside through a pre-set through hole on the top surface of the housing 1. A number of interfaces 4 are provided on one side of the housing 1 for connecting to an external key 6 or a shortwave radio. The power supply 8 is used to power the buzzer 3. The buzzer 3 is used to produce the corresponding Morse code tone when the user presses the button 2 or the externally connected key 6.

[0020] Preferably, a volume adjustment knob 5 located next to the buzzer 3 is also included for adjusting the volume of the buzzer 3. With this configuration, the portable key buzzer has Morse code tone playback function and the volume is adjustable.

[0021] In one specific embodiment, interface 4 uses a 6.5mm two-pin socket for use with a two-pin audio cable 7, thereby enabling connection to an external key 6 or shortwave radio. In the illustrated embodiment, there are three interfaces 4.

[0022] The power supply 8 can use a 9V rechargeable lithium battery. On the other side of the casing 1, there is a corresponding Type-C charging port and a corresponding charging cable.

[0023] In addition, the buzzer 3 can be an existing active electronic buzzer; the rectangular shell 1 is 10cm long, 10cm wide, and 6cm high, and its weight is less than 300g.

[0024] The circuit principle of this portable key buzzer is as follows: Figure 3 As shown, the power supply 8, buzzer 3, and adjustment knob 5 are connected in series, while button 2 and multiple interfaces 4 are connected in parallel to the main circuit. Its principle is simple, its structure is concise, and its cost is low.

[0025] The portable key buzzer provided by this utility model can be connected to an external key 6 and a shortwave radio simultaneously via a two-core audio cable 7 to achieve constant amplitude radio transmission. When transmitting Morse code messages, the audio is played back in real time, which allows the radio operator to monitor the transmission quality and the working status of the contacts of the key 6 and the audio cable in real time, thereby reducing the error rate of transmission. In an emergency, the external key 6 can be disconnected, and constant amplitude radio transmission can be achieved directly through the built-in button 2.

[0026] In addition, this portable key buzzer can also be used for offline simulation without being connected to a shortwave radio. During simulation, training can be conducted directly using the built-in button 2 in conjunction with the buzzer 3. Alternatively, several external keys 6 can be connected for network training, which facilitates the organization of training for beginners, familiarizes them with Morse code tones, and improves training efficiency.

[0027] In summary, the portable key buzzer provided by this utility model has a simple structure, is compact and portable, has a long service life, is easy to maintain, is easy to operate and can be used immediately upon plugging in; it does not require an external power supply and can be used at fixed stations, and is also very suitable for use by mobile stations during field training; it has a Morse code sound playback function, and can be used directly without wiring when sounding, which is beneficial to improving the learning efficiency of Morse code.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portable electric key buzzer, characterized by comprising: It comprises a shell (1), a power supply (8), a button (2) and a buzzer (3), and the power supply (8), the button (2) and the buzzer (3) are electrically connected; The shell (1) is in the shape of a cuboid, and the power supply (8) is installed inside the shell (1); The main body of the button (2) and the buzzer (3) are both installed inside the shell (1), and the button (2) and the buzzer (3) extend to the outside through the through holes preset on the top surface of the shell (1); One side of the shell (1) is provided with a plurality of interfaces (4) for connecting with external keys (6) or short wave radios; The power supply (8) is used for supplying power to the buzzer (3); The buzzer (3) is used for producing corresponding Morse code sounds when the user presses the button (2) or the externally connected key (6).

2. The portable key buzzer of claim 1, wherein It also comprises a volume adjusting knob (5) beside the buzzer (3) for adjusting the volume of the buzzer (3).

3. The portable key buzzer of claim 1, wherein The interface (4) adopts a large two-core socket of 6.5mm for cooperating with a two-core audio line (7), so as to realize the connection with the external key (6) or the short wave radio.

4. The portable key buzzer of claim 1, wherein The power supply (8) adopts a 9V rechargeable lithium battery, and a Type-c charging interface is also arranged on the other side of the shell (1).

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