Radio with indicator light

Abstract

The utility model relates to radio technology field especially is with indicating lamp's radio, including radio body, the radio body includes casing, circuit board, station knob and station indication subassembly, the inside of casing is provided with accommodation cavity, the inside of accommodation cavity is equipped with first positioning pin and second positioning pin, circuit board is provided with first locating hole and second locating hole, first locating hole and second locating hole are inserted with first positioning pin and second positioning pin respectively and are inserted with cooperation to realize the preposition of circuit board, station knob is connected with circuit board electricity, and is located in one side of casing, station indication subassembly is connected with circuit board electricity, and it includes scale card, indicating pointer, indicating lamp and transmission module, the utility model provides a kind of radio with indicating lamp, satisfies the demand of user to assembly efficiency, operating convenience, use stability.

Description

Technical Field

[0001] This utility model relates to the field of radio technology, and in particular to a radio with an indicator light. Background Technology

[0002] A radio is an electronic device that uses electromagnetic waves to receive radio broadcast signals and convert them into audible sound signals. Its core function is to receive broadcast programs at different frequencies.

[0003] Existing radios suffer from several pain points in structural design and functional implementation: First, circuit board assembly lacks effective pre-positioning, often relying on screws or simple clips for fixing. This requires repeated alignment of holes during assembly, resulting in low efficiency and susceptibility to component damage due to misalignment. Over time, vibrations can cause loosening, leading to poor circuit contact and tuning failure. Second, the tuning indicator system is inadequate. Exposed scale cards are susceptible to contamination and wear, and exposed indicator lights provide diffused light, resulting in poor visibility in bright light, making it difficult for users to determine tuning status and current frequency. Third, the battery compartment cover design is unreasonable, with some... Some devices use screws for assembly and disassembly requiring tools, while others use overly tight snap-fit ​​mechanisms that are prone to damage. Furthermore, the fit between the cover and battery compartment is often loose or fails to close properly. Fourth, functional components are scattered; the power button, volume knob, and band switching knob are all independent, requiring frequent switching and making the process cumbersome. Fifth, portability and signal reception are insufficient; most lack a lanyard, making outdoor carrying inconvenient, and the antennas are mostly fixed, taking up space and being easily damaged. Sixth, the tuning transmission mechanism has low precision, often using a single gear drive without a guiding structure, causing the indicator pointer to easily deviate, resulting in a mismatch between the tuning frequency and the indicated position. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a radio with an indicator light to meet users' needs for assembly efficiency, ease of operation, and stability of use.

[0005] The present invention adopts the following technical solution: A radio with an indicator light includes a radio body, which comprises a housing, a circuit board, a tuning knob, and a tuning indicator assembly. The housing has an inner cavity containing a first positioning pin and a second positioning pin. The circuit board has a first positioning hole and a second positioning hole, which respectively engage with the first positioning pin and the second positioning pin to achieve pre-positioning of the circuit board. The tuning knob is electrically connected to the circuit board and is located on one side of the housing. The tuning indicator assembly is electrically connected to the circuit board and includes a scale card, an indicator pointer, an indicator light, and a transmission module. The scale card displays frequency markings. The indicator pointer is movably positioned in front of the scale card to indicate the current frequency. The indicator light displays the tuning status. The transmission module moves the indicator pointer in front of the scale card.

[0006] A further improvement to the above technical solution is that a battery compartment for accommodating a power supply battery is provided on the rear side of the housing, and the battery compartment is detachably connected to a rear cover plate; a lanyard hole is provided on one side edge of the housing, and a telescopic antenna is provided above the lanyard hole, and the telescopic antenna is stored in the top of the housing.

[0007] A further improvement to the above technical solution is that an upper slot is provided on the inner top of the battery compartment, and connecting slots are provided at both ends of the upper slot. An abutment protrusion is provided on the rear side of the connecting slot; and lower slots are provided on both sides of the bottom of the battery compartment.

[0008] A further improvement to the above technical solution is that battery pressure plates are symmetrically provided on the inner side of the rear cover plate, and the battery pressure plates are used to press against the power supply battery; a snap-fit ​​barb is provided at the top center of the rear cover plate, and the snap-fit ​​barb engages with the upper slot; L-shaped connecting pieces are provided on both sides of the snap-fit ​​barb, and a rotating shaft is provided at the top of the L-shaped connecting piece, one end of the rotating shaft extends to the outside and abuts against the abutment boss, so that the rear cover plate can rotate around the rotating shaft; snap-fit ​​protrusions are provided on both sides of the bottom of the rear cover plate, and the snap-fit ​​protrusions engage with the lower slot.

[0009] A further improvement to the above technical solution is that the rear cover plate is provided with a pressing part with anti-slip texture below the snap hook. The pressing part is used for the user to press and operate, so as to cause the snap hook to disengage from the upper slot.

[0010] A further improvement to the above technical solution is that a front cover is provided on one side of the housing, an indicator window is provided on one side of the front cover, and a transparent cover plate is embedded on the rear side of the indicator window. The transparent cover plate is located in front of the scale card. A light guide is provided on the top of the transparent cover plate. The light guide abuts against the indicator light and is used to guide the light of the indicator light to the outside.

[0011] A further improvement to the above technical solution is that a band switching push button is provided on the top of the housing, and the band switching push button is electrically connected to the circuit board to realize the band switching function of the radio.

[0012] A further improvement to the above technical solution is that a speaker grille is provided on one side of the front cover, and a speaker is installed on the rear side of the speaker grille, and the speaker is electrically connected to the circuit board.

[0013] A further improvement to the above technical solution is that a volume adjustment potentiometer is provided below the tuning knob. The volume adjustment potentiometer is electrically connected to the circuit board and is used to adjust the playback volume of the radio and realize power on / off control. Below the volume adjustment potentiometer is a headphone jack, which is electrically connected to the circuit board and is used to connect external headphones to output audio signals.

[0014] A further improvement to the above technical solution is that the transmission module includes a drive motor, a first rotating wheel, and several second rotating wheels; the drive motor is electrically connected to the circuit board and is used to drive the first rotating wheel to rotate; the first rotating wheel and the second rotating wheels are in transmission cooperation to drive each second rotating wheel to move together and drive the indicator pointer to move along the slide rail in front of the scale card to realize the frequency indication function.

[0015] The beneficial effects of this utility model are as follows: This utility model achieves multi-dimensional optimization through the coordinated design of all components: In terms of structure and assembly, the housing cavity provides a closed installation space; the pre-positioning of the positioning pin and positioning hole reduces the difficulty of circuit board assembly; the battery compartment slot and rear cover snap-fit ​​structure, and the cooperation between the rotating shaft and the abutment boss ensure stable opening and closing of the rear cover; the overall structure is compact and assembly is efficient. In terms of ease of operation, the integrated volume control potentiometer (including power on / off), intuitive tuning knob, and band switching push button simplify the operation process; the anti-slip textured pressing part reduces the difficulty of opening the rear cover; and the tuning indicator component, light guide, and transparent cover work together to allow the frequency... With clearly visible tuning status, even beginners can quickly get started. Regarding power supply and maintenance, a removable back cover and flexible battery holder facilitate battery replacement and ensure stable power supply. A transparent cover and speaker grille reduce component maintenance frequency and extend lifespan. For adaptability, a lanyard hole enhances portability, a retractable antenna optimizes signal reception, and a headphone jack supports private listening, catering to diverse scenarios such as outdoor, indoor, private, and public environments. In terms of functional precision, the rotary drive and slide rail guidance of the transmission module ensure accurate pointer movement, the precise setting of the band switching knob prevents accidental operation, and the speaker and speaker grille work together to guarantee sound quality. Overall, this radio balances structural stability, ease of operation, scene adaptability, and functional precision, significantly improving the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the radio with indicator light according to this utility model; Figure 2 for Figure 1 An exploded view of a radio with indicator lights; Figure 3 for Figure 1 A schematic diagram of the circuit board and tuning indicator assembly of a radio with indicator lights; Figure 4 for Figure 1 A structural diagram of a radio with indicator lights from another angle; Figure 5 for Figure 1 A schematic diagram of the battery compartment of a radio with indicator lights; Figure 6 for Figure 1 A schematic diagram of the structure of the back cover of a radio with indicator lights; Figure 7 for Figure 1 A schematic diagram of the casing and back cover of a radio with indicator lights.

[0017] The numbers on the map are: 10. Radio body; 11. Tuning knob; 12. Volume control potentiometer; 13. Headphone jack; 20. Housing; 21. Receiving cavity; 22. First positioning pin; 23. Second positioning pin; 24. Power supply battery; 25. Hanging lanyard hole; 26. Telescopic antenna; 27. Band switching push button; 30. Circuit board; 31. First positioning hole; 32. Second positioning hole; 40. Tuning station indicator assembly; 41. Scale card; 42. Indicator pointer; 43. Indicator light; 50. Transmission module; 51. Drive motor; 52. First rotating wheel; 53. Second rotating wheel; 54. Slide rail; 60. Battery compartment; 61. Upper slot; 62. Connecting slot; 63. Abutting boss; 64. Lower slot; 70. Rear cover; 71. Battery clamping plate; 72. Snap-fit ​​hook; 73. L-shaped connecting piece; 74. Rotating shaft; 75. Snap-fit ​​protrusion; 76. Pressing part; 77. Anti-slip texture; 80. Front cover; 81. Indicator window; 82. Transparent cover; 83. Light guide; 84. Speaker grille; 85. Speaker. Detailed Implementation

[0018] 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.

[0019] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] like Figures 1 to 7The image shows an embodiment of the present invention, relating to a radio with an indicator light, comprising a radio body 10, the radio body 10 including a housing 20, a circuit board 30, a tuning knob 11, and a tuning indicator assembly 40; the housing 20 has an inner cavity 21, and the cavity 21 has a first positioning pin 22 and a second positioning pin 23; the circuit board 30 has a first positioning hole 31 and a second positioning hole 32, which are respectively engaged with the first positioning pin 22 and the second positioning pin 23. To achieve the pre-positioning of the circuit board 30; the tuning knob 11 is electrically connected to the circuit board 30 and is located on one side of the housing 20; the tuning indicator assembly 40 is electrically connected to the circuit board 30, and includes a scale card 41, an indicator pointer 42, an indicator light 43, and a transmission module 50; the scale card 41 is used to display the frequency scale; the indicator pointer 42 is movably disposed in front of the scale card 41 to indicate the current frequency; the indicator light 43 is used to display the working status of the tuning station; the transmission module 50 is used to drive the indicator pointer 42 to move in front of the scale card 41. Specifically, the housing 20 of the radio body 10 provides a closed and suitable installation space for the circuit board 30, tuning knob 11, and tuning indicator assembly 40 through the inner accommodating cavity 21, preventing external impurities from intruding and affecting the internal components; the first positioning pin 22 and the second positioning pin 23 in the accommodating cavity 21 are inserted and engaged with the first positioning hole 31 and the second positioning hole 32 of the circuit board 30 to achieve pre-positioning, eliminating the need for repeated alignment of the holes, greatly reducing the assembly difficulty of the circuit board 30, improving production efficiency, and preventing component collision damage caused by positional misalignment during assembly; the tuning knob 11 is electrically connected to the circuit board 30 and is located on one side of the housing 20. The system is ergonomically designed for easy tuning, allowing users to rotate the tuning station with ease. The tuning indicator component 40 features a scale card 41 that clearly displays the frequency scale, providing users with an intuitive frequency reference. The indicator pointer 42 is positioned in front of the scale card 41 and can follow the tuning action in real time, providing feedback on the current frequency. The indicator light 43 dynamically displays the tuning status (e.g., light on during tuning, light off upon completion), helping users judge the progress of the operation. The transmission module 50 provides stable power to the indicator pointer 42, driving its precise movement and ensuring synchronization between the tuning action and the frequency indication, preventing tuning misalignment and allowing users to quickly and accurately complete the tuning process, thus lowering the barrier to entry.

[0022] like Figure 4 and Figure 5As shown, a battery compartment 60 for accommodating a power supply battery 24 is provided on the rear side of the housing 20, and a rear cover plate 70 is detachably connected to the battery compartment 60; a lanyard hole 25 is provided on one side edge of the housing 20, and a telescopic antenna 26 is provided above the lanyard hole 25, and the telescopic antenna 26 is stored in the top of the housing 20. Specifically, the battery compartment 60 is designed to accommodate the power supply battery 24, with internal space adapted to the size of standard batteries to ensure that the batteries are securely installed. The detachable rear cover 70 replaces the traditional screw-locking structure, allowing users to quickly install and remove it without tools, facilitating battery replacement and ensuring continuous power supply to the radio. The lanyard hole 25 on one side edge of the housing 20 supports lanyard installation, allowing users to hang the radio on their chest, backpack, or other locations, making it suitable for outdoor hiking, commuting, and other mobile scenarios, enhancing portability. The retractable antenna 26 above the lanyard hole 25 can extend outwards during use to increase the signal reception range and optimize the clarity of reception in weak signal environments. When not in use, it can be completely stored in the top of the housing 20, saving space and preventing damage to the antenna from collisions or pulling, thus combining practicality and protection.

[0023] like Figure 5 and Figure 7 As shown, the battery compartment 60 has an upper slot 61 at its inner top, and connecting slots 62 are respectively provided at both ends of the upper slot 61. The connecting slots 62 are provided with abutment protrusions 63 on the rear side of the battery compartment 60. The battery compartment 60 has lower slots 64 on both sides of its bottom. Specifically, the upper slot 61 provides a precise positioning slot for the snap-fit ​​hook 72 of the rear cover 70, ensuring the stability of the snap-fit ​​and preventing the top of the rear cover 70 from loosening; the connecting slots 62 at both ends of the upper slot 61 are adapted to the L-shaped connecting piece 73 of the rear cover 70, providing room for the connecting piece and avoiding structural interference when the rear cover 70 is opened and closed; the connecting slot 62 is located on the abutment protrusion 63 on the rear side of the battery compartment 60, which can form a stable support with the rotation shaft 74 of the rear cover 70, limiting the radial displacement of the rotation shaft 74 and ensuring that the rear cover 70 rotates smoothly around the shaft without jamming; the lower slots 64 on both sides of the bottom of the battery compartment 60 cooperate with the snap-fit ​​protrusion 75 of the rear cover 70, forming a double-fixed structure with the upper slot 61, avoiding the loosening of the bottom of the rear cover 70 caused by only the top snap-fit, and providing precise structural support for the sealing of the battery compartment 60 and the opening and closing of the rear cover 70, ensuring the cleanliness of the inside of the battery compartment 60 and preventing battery displacement.

[0024] like Figure 6As shown, battery pressure plates 71 are symmetrically arranged on the inner side of the rear cover plate 70, and the battery pressure plates 71 are used to press against the power supply battery 24; a snap-fit ​​hook 72 is provided at the top center of the rear cover plate 70, and the snap-fit ​​hook 72 is engaged with the upper slot 61; L-shaped connecting pieces 73 are provided on both sides of the snap-fit ​​hook 72, and a rotating shaft 74 is provided at the top of the L-shaped connecting piece 73. One end of the rotating shaft 74 extends to the outside and abuts against the abutment protrusion 63, so that the rear cover plate 70 can rotate around the rotating shaft 74; snap-fit ​​protrusions 75 are provided on both sides of the bottom of the rear cover plate 70, and the snap-fit ​​protrusions 75 are engaged with the lower slot 64. Specifically, the symmetrically arranged battery pressure plates 71 can tightly press against both ends of the power supply battery 24, preventing the battery from shifting during radio movement or vibration, and ensuring stable contact between the battery and the circuit contacts, preventing power interruption and sound quality stuttering due to poor contact; the snap-fit ​​hook 72 at the top center of the rear cover 70 engages with the slot 61 on the battery compartment 60, enabling quick fixation of the top of the rear cover 70; the L-shaped connecting pieces 73 on both sides of the snap-fit ​​hook 72 provide a stable mounting carrier for the rotating shaft 74, ensuring integrated linkage between the rotating shaft 74 and the connecting pieces; one end of the rotating shaft 74 extends to the outside and abuts against the abutment boss 63, forming a support structure between the shaft and the boss, ensuring the coaxiality of the rear cover 70 when rotating around the rotating shaft 74, and preventing skewing; the snap-fit ​​protrusions 75 on both sides of the bottom of the rear cover 70 engage with the slot 64 at the bottom of the battery compartment 60, forming a double fixation with the top snap-fit ​​hook 72, further enhancing the sealing of the rear cover 70 after closing, and preventing dust from entering from the gaps in the battery compartment 60.

[0025] like Figure 4 As shown, the rear cover 70 has a pressing part 76 with anti-slip texture 77 below the snap hook 72. The pressing part 76 is used by the user to press and disengage the snap hook 72 from the upper slot 61. Specifically, the pressing part 76 below the snap hook 72 on the rear cover 70 is designed to meet the user's opening and closing habits. The user can directly press and engage the snap hook 72 without having to pull it. The anti-slip texture 77 on the surface of the pressing part 76 increases the friction between the finger and the pressing part 76, preventing slippage even if the hand is wet or sweaty. This ensures that the user can easily press and disengage the snap hook 72 from the upper slot 61, greatly simplifying the opening operation of the rear cover 70, solving the problems of traditional rear covers 70 being difficult to open and easily damaged, and improving the convenience of battery replacement.

[0026] like Figure 1 and Figure 2As shown, a front cover 80 is provided on one side of the housing 20, and an indicator window 81 is provided on one side of the front cover 80. A transparent cover plate 82 is embedded on the rear side of the indicator window 81. The transparent cover plate 82 is located in front of the scale card 41. A light guide 83 is provided on the top of the transparent cover plate 82. The light guide 83 abuts against the indicator light 43 and is used to guide the light of the indicator light 43 to the outside. Specifically, the front cover 80 can cover the front opening of the housing 20, protecting the internal circuit board 30 and tuning indicator assembly 40 from external impacts and scratches; the indicator window 81 of the front cover 80 provides a transparent view for the user to observe the scale card 41 and the indicator pointer 42, avoiding inconvenience caused by the front cover 80 obstructing the view; the transparent cover plate 82 embedded behind the indicator window 81 is made of a high light transmittance material, which not only does not affect the clarity of the frequency scale observation, but also isolates the scale card 41 from dust and oil stains, preventing scale wear; the light guide 83 at the top of the transparent cover plate 82 is made of a high light transmittance plastic material, which can efficiently guide the light of the indicator light 43 to the outside after being tightly abutted with the indicator light 43, so that even in a strong light environment, the user can clearly see the status of the indicator light 43, solving the problem of scattered light and poor visibility of traditional indicator lights 43.

[0027] like Figure 1 As shown, the top of the housing 20 is provided with a band switching push button 27, which is electrically connected to the circuit board 30 to realize the band switching function of the radio. Specifically, the band switching push button 27 is electrically connected to the circuit board 30, and the user can quickly switch between different bands such as AM and FM by pushing the push button. The operation is intuitive and simple, without the need to adjust complicated knobs or menus. The push button's travel is precisely designed, with each position corresponding to one band, avoiding the problems of ambiguous positions and accidental switching, meeting the user's needs to receive radio stations on different frequency bands, improving band switching efficiency, and is especially suitable for elderly users or outdoor users who have high requirements for ease of operation.

[0028] like Figure 2 As shown, a speaker grille 84 is provided on one side of the front cover 80, and a speaker 85 is installed on the rear side of the speaker grille 84. The speaker 85 is electrically connected to the circuit board 30. Specifically, the speaker grille 84 adopts a hollow design, which not only does not obstruct the transmission of audio signals output by the speaker 85, ensuring clear sound quality, but also effectively blocks dust, hair, and small particles from entering the speaker 85, avoiding sound quality distortion and component damage caused by foreign objects blocking the diaphragm of the speaker 85. The speaker 85 on the rear side of the speaker grille 84 is electrically connected to the circuit board 30, which can efficiently convert the audio signals received by the radio into sound. Its power is adapted to the internal space of the housing 20 to ensure clear sound and sufficient volume, meeting the user's daily indoor and outdoor listening needs.

[0029] like Figure 1As shown, a volume adjustment potentiometer 12 is located below the tuning knob 11. The volume adjustment potentiometer 12 is electrically connected to the circuit board 30 and is used to adjust the radio's playback volume and control its power on / off. Below the volume adjustment potentiometer 12 is a headphone jack 13, which is also electrically connected to the circuit board 30 and is used to connect external headphones for audio signal output. Specifically, the volume adjustment potentiometer 12, electrically connected to the circuit board 30, integrates the dual functions of volume adjustment and power on / off control. Users can turn the potentiometer clockwise to turn on the radio and increase the volume, and counterclockwise to the lowest setting to turn it off, eliminating the need for a separate power button and simplifying the operation. The potentiometer has high resistance adjustment precision, enabling precise volume control and avoiding sudden volume changes, thus improving listening comfort. The headphone jack 13 below the volume adjustment potentiometer 12 uses a standard interface design, supporting most headphones on the market. Users can connect external headphones for private listening, avoiding disturbing others and expanding the radio's usage scenarios. Furthermore, the interface contact is stable, ensuring noise-free audio signal transmission.

[0030] like Figure 2 and Figure 3 As shown, the transmission module 50 includes a drive motor 51, a first rotating wheel 52, and several second rotating wheels 53; the drive motor 51 is electrically connected to the circuit board 30 and is used to drive the first rotating wheel 52 to rotate; the first rotating wheel 52 and the second rotating wheels 53 are in a transmission cooperation to drive each second rotating wheel 53 to move together and drive the indicator pointer 42 to move along the slide rail 54 in front of the scale card 41 to realize the frequency indication function. Specifically, the drive motor 51 is electrically connected to the circuit board 30 and can output stable power according to the operation signal of the tuning knob 11. The speed is controllable, avoiding pointer overshoot due to excessive power or pointer jamming due to insufficient power. The first rotating wheel 52 and several second rotating wheels 53 are connected by belts or other transmissions, which has high transmission efficiency and small error, and can realize precise power transmission, driving each second rotating wheel 53 to move synchronously. The indicator pointer 42 moves along the slide rail 54 in front of the scale card 41. The slide rail 54 provides a fixed movement trajectory for the pointer, restricts the lateral deviation of the pointer, and ensures that the pointer is always aligned with the scale line of the scale card 41. This solves the problem of inaccurate tuning caused by the lack of guidance and easy deviation of traditional pointers, allowing users to accurately correspond to the target frequency when tuning and improving tuning accuracy.

[0031] The working principle of this utility model is as follows: First, install the circuit board 30: Align the first positioning hole 31 and the second positioning hole 32 of the circuit board 30 with the first positioning pin 22 and the second positioning pin 23 in the accommodating cavity 21 of the housing 20, respectively, and complete the pre-positioning by insertion to ensure the accurate position of the circuit board 30. During operation, prepare for power supply: Open the rear cover 70 of the battery compartment 60 on the rear side of the housing 20, that is, press the anti-slip pressing part 76 of the rear cover 70 to disengage the snap hook 72 from the upper slot 61, and the rear cover 70 rotates around L The rotating shaft 74 at the top of the connecting piece abuts against the protrusion 63 of the battery compartment 60, enabling rotation to open the compartment. The power supply battery 24 is then placed into the battery compartment 60, and the battery pressure plate 71 presses against both ends of the battery to ensure stable contact. The rear cover 70 is then closed (the hook 72 engages with the upper slot 61, and the bottom protrusion 75 engages with the lower slot 64). In use, the user rotates the volume adjustment potentiometer 12 below the tuning knob 11. Turning it clockwise to a non-zero position turns on the power and adjusts the volume, while turning it counterclockwise to the lowest position turns off the power. When tuning, rotating the tuning knob 11 sends a signal to the circuit board 30, which then controls the drive motor 51 of the transmission module 50 to rotate. The motor drives the first rotating wheel 52 to rotate, and the first rotating wheel 52 meshes with several second rotating wheels 53 for transmission and linkage. The indicator pointer 42 moves along the slide rail 54 in front of the scale card 41, and the indicator light 43 is powered on. The light is guided out through the light guide 83 on the top of the transparent cover plate 82 behind the indicator window 81 of the front cover 80. The user can observe the scale and pointer through the transparent cover plate 82 to determine the current frequency. Pushing the band switching knob 27 on the top of the housing 20 can switch the radio band. If the signal needs to be enhanced, the telescopic antenna 26 on the top of the housing 20 can be pulled out (and stored back in the housing 20 when not in use). The audio signal is output through the speaker 85 on the back of the speaker grille 84 of the front cover 80. If you need to listen privately, plug the headphones into the headphone jack 13 below the volume adjustment potentiometer 12. When carrying outdoors, a lanyard can be installed through the lanyard hole 25 on the edge of the housing 20 to improve portability.

[0032] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A radio with an indicator light, characterized in that, The radio includes a main body, comprising a housing, a circuit board, a tuning knob, and a tuning indicator assembly. The housing has an inner cavity containing a first positioning pin and a second positioning pin. The circuit board has a first positioning hole and a second positioning hole, which respectively engage with the first and second positioning pins to achieve pre-positioning of the circuit board. The tuning knob is electrically connected to the circuit board and is located on one side of the housing. The tuning indicator assembly is electrically connected to the circuit board and includes a scale card, an indicator pointer, an indicator light, and a transmission module. The scale card displays frequency markings. The indicator pointer is movably positioned in front of the scale card to indicate the current frequency. The indicator light displays the tuning status. The transmission module moves the indicator pointer in front of the scale card.

2. The radio with indicator light according to claim 1, characterized in that, The rear side of the housing has a battery compartment for accommodating the power supply battery, and the battery compartment is detachably connected to a rear cover plate; a lanyard hole is provided on one side edge of the housing, and a telescopic antenna is provided above the lanyard hole, and the telescopic antenna is stored in the top of the housing.

3. The radio with indicator light according to claim 2, characterized in that, The battery compartment has an upper slot at its inner top, and connecting slots at both ends of the upper slot. The connecting slots have abutting protrusions on the rear side of the battery compartment. The battery compartment has lower slots on both sides of its bottom.

4. The radio with indicator light according to claim 2, characterized in that, The inner side of the rear cover plate is symmetrically provided with battery pressure plates, which are used to press against the power supply battery; the top center of the rear cover plate is provided with a snap-fit ​​hook, which engages with the upper slot; L-shaped connecting pieces are provided on both sides of the snap-fit ​​hook, and the top of the L-shaped connecting pieces is provided with a rotating shaft, one end of which extends to the outside and abuts against the abutment boss, so that the rear cover plate can rotate around the rotating shaft; snap-fit ​​protrusions are provided on both sides of the bottom of the rear cover plate, which engage with the lower slot.

5. The radio with indicator light according to claim 2, characterized in that, The rear cover plate has a pressing part with anti-slip texture below the snap hook. The pressing part is used for the user to press and operate to cause the snap hook to disengage from the upper slot.

6. The radio with indicator light according to claim 1, characterized in that, A front cover is provided on one side of the housing, and an indicator window is provided on one side of the front cover. A transparent cover plate is embedded on the rear side of the indicator window and is located in front of the scale card. A light guide is provided on the top of the transparent cover plate, and the light guide abuts against the indicator light to guide the light of the indicator light to the outside.

7. The radio with indicator light according to claim 1, characterized in that, The top of the housing is provided with a band switching push button, which is electrically connected to the circuit board to realize the band switching function of the radio.

8. The radio with indicator light according to claim 6, characterized in that, A speaker grille is provided on one side of the front cover, and a speaker is installed on the rear side of the speaker grille. The speaker is electrically connected to the circuit board.

9. The radio with indicator light according to claim 1, characterized in that, Below the tuning knob is a volume adjustment potentiometer, which is electrically connected to the circuit board and used to adjust the playback volume of the radio and control its power on / off. Below the volume adjustment potentiometer is a headphone jack, which is electrically connected to the circuit board and used to connect external headphones for audio signal output.

10. The radio with indicator light according to claim 1, characterized in that, The transmission module includes a drive motor, a first rotating wheel, and several second rotating wheels. The drive motor is electrically connected to the circuit board and is used to drive the first rotating wheel to rotate. The first rotating wheel and the second rotating wheels are in a transmission cooperation to drive each second rotating wheel to move together and drive the indicator pointer to move along the slide rail in front of the scale card to realize the frequency indication function.

Images