Multi-person intercom device with anti-interference function
By designing anti-signal interference components and protective heat dissipation components in multi-person walkie-talkies, the problems of call clarity and connection stability under electromagnetic interference and noise are solved, and efficient signal filtering and environmentally adaptable heat dissipation are achieved.
Patent Information
- Application Number
- CN202520642625.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-08
AI Technical Summary
Multi-person walkie-talkies are affected by electromagnetic interference and noise during communication, resulting in reduced call clarity and unstable connection between the filter and the connector.
An anti-signal interference component was designed, comprising a filter, a pressing plate, a connecting plate, and a helical spring. This enhances the connection stability between the filter and the connector and is equipped with a protective heat dissipation component to adapt to different environments. The ventilation or isolation of the filter is adjusted through a sealing plate and a heat dissipation window.
It effectively filters out noise, improves signal reception and transmission, ensures call clarity, and maintains stable connection and heat dissipation performance of the filter in different environments.
Smart Images

Figure CN223978647U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of intercom device technology, and more specifically, to a multi-person intercom device with anti-interference function. Background Technology
[0002] Multi-user walkie-talkies are devices that enable real-time voice communication between multiple users. In numerous industries and scenarios, such as security, logistics, and outdoor activities, multi-user walkie-talkies are essential communication tools for rapid and convenient information transmission and collaborative work. However, with the increasing complexity of the electromagnetic environment, walkie-talkies face severe challenges in resisting interference during communication.
[0003] In multi-person walkie-talkie communication, the received and transmitted signals are often mixed with a large amount of noise. This noise comes from a variety of sources, including electromagnetic interference from the surrounding environment and thermal noise generated by the walkie-talkie's own circuitry. The presence of noise severely masks the effective signal, making it difficult for the receiver to accurately identify and understand the information conveyed by the sender, resulting in a significant reduction in call clarity. Furthermore, filters, as key components in anti-interference systems, are designed to remove noise from the signal and improve signal quality. However, in actual installation and use, the connection between the filter and the connector is often at risk of loosening. To address these problems, this device was invented. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-person intercom device with anti-interference function to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a multi-person walkie-talkie, a clamp fixedly mounted on the walkie-talkie, a signal receiving hole opened on the lower end face of the walkie-talkie, an anti-signal interference component provided on one side of the signal receiving hole, the anti-signal interference component including a receiving groove opened on the walkie-talkie, the receiving groove being located on one side of the signal receiving hole, a plug socket fixedly mounted in the receiving groove, a filter inserted into the plug socket, and a pressing plate above the filter.
[0006] Furthermore, two first connecting plates are rotatably disposed on the upper end surface of the pressing plate, and a second connecting plate is rotatably disposed on one end of each of the first connecting plates, and one end of the second connecting plate is rotatably connected to the bottom end of the inner side of the receiving groove.
[0007] Furthermore, the first connecting plate and the second connecting plate are connected in a V-shape, and a helical spring is fixedly connected between the first connecting plate and the second connecting plate. A protective heat dissipation component is provided on one side of the filter.
[0008] Furthermore, the protective heat dissipation assembly includes a composite plate bolted to the receiving groove, a heat dissipation window fixedly provided on the composite plate, an installation groove provided on the composite plate, the heat dissipation window located in the installation groove, a sealing plate slidably provided in the installation groove, and an insert plate fixedly provided at the top of the sealing plate.
[0009] Furthermore, an insertion port is provided at the top of the inner side of the mounting groove, the insertion plate is inserted into the insertion port, a receiving cavity is provided on the composite plate, a positioning rod is provided on the composite plate, and one end of the positioning rod passes through the receiving cavity and is inserted into the insertion plate in the insertion port.
[0010] Furthermore, a fixing ring is fixedly installed on the positioning rod, the fixing ring is located inside the receiving cavity, a compression spring is fixedly installed on the fixing ring, one end of the compression spring is fixedly connected to the inner wall of the receiving cavity, and a pull block is fixedly installed on the positioning rod.
[0011] Furthermore, the multi-person walkie-talkie is equipped with multiple control buttons and a speaker is fixedly installed on it.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, the filter in the anti-signal interference component can effectively filter out noise in the received and transmitted signals of multi-person walkie-talkies, significantly improving the signal reception and transmission effect, and making the communication between multi-person walkie-talkies clearer; the setting of the pressing plate, the second connecting plate, the first connecting plate and the helical spring can press the installed filter, improve the stability of the connection between the filter and the plug-in, and avoid the separation of the two from affecting the clarity of the communication.
[0014] 2. This utility model is equipped with a protective heat dissipation component, which enables the multi-person walkie-talkie to adapt to different environments: in dark and humid environments, the sealing plate is lowered by pulling the positioning rod to seal the heat dissipation window, isolating the filter from the external environment and preventing moisture from affecting the equipment; in high-temperature and dry environments, the sealing plate is pulled up to open the heat dissipation window, allowing the filter to ventilate and dissipate heat from the external environment through the heat dissipation window. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0016] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a second-view schematic diagram of the overall structure of the present invention.
[0018] Figure 3 The exploded view provided by this utility model is a first-person perspective.
[0019] Figure 4 The exploded view provided by this utility model is a second perspective.
[0020] Figure 5 Exploded view of the protective heat dissipation component provided by this utility model;
[0021] Figure 6 A cross-sectional view of the composite plate provided by this utility model;
[0022] Figure 7 The schematic diagram of the multi-person walkie-talkie provided by this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Multi-person walkie-talkie; 21. Receiving slot; 22. Plug-in socket; 23. Filter; 24. Press plate; 25. Second connecting plate; 26. First connecting plate; 27. Helical spring; 3. Signal receiving hole; 4. Protective heat dissipation assembly; 41. Composite plate; 42. Heat dissipation window; 43. Mounting slot; 44. Sealing plate; 47. Insert plate; 49. Socket; 410. Receiving cavity; 411. Positioning rod; 412. Fixing ring; 413. Compression spring; 414. Hand lever; 5. Clamping plate; 6. Control keys; 7. Speaker. Detailed Implementation
[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. 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 protection scope of this utility model.
[0026] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] See attached document Figures 1-4This embodiment of a multi-person walkie-talkie device with anti-interference function includes: a multi-person walkie-talkie 1, a clamp 5 fixedly mounted on the multi-person walkie-talkie 1, a signal receiving hole 3 opened on the lower end face of the multi-person walkie-talkie 1, an anti-signal interference component disposed on one side of the signal receiving hole 3, the anti-signal interference component including a receiving groove 21 opened on the multi-person walkie-talkie 1, the receiving groove 21 being located on one side of the signal receiving hole 3, a plug-in seat 22 fixedly mounted in the receiving groove 21, a filter 23 inserted into the plug-in seat 22, and a pressing plate 24 disposed above the filter 23.
[0028] The upper surface of the pressing plate 24 is rotatably provided with two first connecting plates 26, and one end of each first connecting plate 26 is rotatably provided with a second connecting plate 25. One end of the second connecting plate 25 is rotatably connected to the bottom of the inner side of the receiving groove 21.
[0029] The first connecting plate 26 and the second connecting plate 25 are connected in a V-shape, and a helical spring 27 is fixedly connected between the first connecting plate 26 and the second connecting plate 25. A protective heat dissipation component 4 is provided on one side of the filter 23.
[0030] The anti-interference component not only filters out noise in the received and transmitted signals of the multi-person walkie-talkie 1, thus improving its signal reception and transmission performance and making communication between the walkie-talkies clearer, but also, the combination of the pressing plate 24, the second connecting plate 25, the first connecting plate 26, and the coil spring 27 allows for pressing the installed filter 23. This improves the stability of the connection between the filter 23 and the connector 22, preventing the filter 23 from separating from the connector 22 during use and affecting the clarity of the communication. Since the coil spring 27 is elastic, its use alone could cause the pressing plate 24 to wobble under pressure. The connection between the pressing plate 24 and the first connecting plate 26 and the second connecting plate 25, which are connected in a V-shape, prevents the pressing plate 24 from wobbling under pressure.
[0031] See attached document Figure 5 and Figure 6 The protective heat dissipation component 4 includes a composite plate 41 bolted to the receiving groove 21. A heat dissipation window 42 is fixedly provided on the composite plate 41. An installation groove 43 is provided on the composite plate 41. The heat dissipation window 42 is located in the installation groove 43. A sealing plate 44 is slidably provided in the installation groove 43. An insert plate 47 is fixedly provided at the top of the sealing plate 44.
[0032] The mounting groove 43 has an insertion port 49 at its inner top, and the insertion plate 47 is inserted into the insertion port 49. The composite plate 41 has a receiving cavity 410, and a positioning rod 411 is provided on the composite plate 41. One end of the positioning rod 411 passes through the receiving cavity 410 and is inserted into the insertion plate 47 in the insertion port 49.
[0033] A fixing ring 412 is fixedly installed on the positioning rod 411. The fixing ring 412 is located inside the receiving cavity 410. A compression spring 413 is fixedly installed on the fixing ring 412. One end of the compression spring 413 is fixedly connected to the inner wall of the receiving cavity 410. A pull block 414 is fixedly installed on the positioning rod 411.
[0034] By setting up the protective heat dissipation component 4, not only can the use of the multi-person walkie-talkie 1 be avoided due to the dark and humid environment, but the multi-person walkie-talkie 1 can also ventilate and dissipate heat from the filter 23 in dry and high-temperature environments.
[0035] See attached document Figure 1 and Figure 3 The multi-person walkie-talkie 1 is equipped with multiple control keys 6, and a speaker 7 is fixedly installed on the multi-person walkie-talkie 1.
[0036] See attached document Figure 7 The multi-person walkie-talkie 1 includes a voice receiving and transmitting element, a communication element, a power supply element, a broadband spread spectrum element, a device connection element, and a security element. The voice receiving and transmitting element transmits received voice data to the voice receiving and transmitting elements of other multi-person walkie-talkies 1 via the communication element. The power supply element uses a lithium battery, the communication element uses a 4G / 5G communication baseband, and the broadband spread spectrum element can adjust the signal frequency over distance, thus increasing the signal transmission distance of the multi-person walkie-talkie 1. The device connection element can connect to devices such as mobile phones and Bluetooth wireless microphones, enabling data interaction, audio pickup and playback, and device control. The security element uses CSS spread spectrum anti-interference technology to ensure that calls are not interfered with by other frequency bands and to prevent crosstalk and eavesdropping.
[0037] When in use, filter 23 is first activated. During use, filter 23 filters out noise from the signals transmitted and received by the multi-person walkie-talkie 1, thus reducing noise generation and improving call clarity. When the multi-person walkie-talkie 1 is in a dark and damp environment, pulling the positioning rod 411 via the pull block 414 pulls one end of the positioning rod 411 out of the insert plate 47. During this pulling process, the fixing ring 412 on the positioning rod 411 compresses the compression spring 413. At this time, the sealing plate 44 moves downwards under its own weight, sealing and blocking the heat dissipation window 42, thereby isolating the filter 23 from the external environment. If the multi-person walkie-talkie 1 is in a high-temperature and dry environment, pulling the sealing plate 44 upwards inserts the insert plate 47 into the socket 49, and inserts one end of the positioning rod 411 into the socket. On the insert plate 47 inside the socket 49, the filter 23 ventilates and dissipates heat from the external environment through the heat dissipation window 42. If the filter 23 needs to be replaced, first use a disassembly tool to remove the composite plate 41 from the receiving groove 21, then push up the pressing plate 24. The upward movement of the pressing plate 24 causes the included angle between the second connecting plate 25 and the first connecting plate 26 to gradually decrease, and the helical spring 27 between the second connecting plate 25 and the first connecting plate 26 is compressed. When the pressing plate 24 moves up to a suitable height, pull the filter 23 off the plug socket 22, and then insert the new filter 23 into the plug socket 22. Then release the upward-pushed pressing plate 24. The pressing plate 24 moves down under the action of the helical spring 27, the second connecting plate 25, and the first connecting plate 26, and presses the pressing plate 24 against the top of the filter 23. Finally, the composite plate 41 is connected to the receiving groove 21 with bolts.
[0038] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 multi-person talkback device having an anti-interference function, characterized by comprising: Include: Multi-person intercom (1), the clamping plate (5) is fixedly arranged on the multi-person intercom (1), the signal receiving hole (3) is arranged on the lower end surface of the multi-person intercom (1), the anti-signal interference assembly is arranged on one side of the signal receiving hole (3), the anti-signal interference assembly comprises a containing groove (21) arranged on the multi-person intercom (1), the containing groove (21) is located on one side of the signal receiving hole (3), a plug-in seat (22) is fixedly arranged in the containing groove (21), a filter (23) is inserted on the plug-in seat (22), and a pressing plate (24) is arranged above the filter (23).
2. The multi-person talkback apparatus with anti-interference function according to claim 1, characterized in that: The upper end surface of the pressing plate (24) is rotatably provided with two first connecting plates (26), one end of the first connecting plate (26) is rotatably provided with a second connecting plate (25), and one end of the second connecting plate (25) is rotatably connected with the inside bottom end of the containing groove (21).
3. The multi-person talkback apparatus with anti-interference function according to claim 2, characterized in that: The first connecting plate (26) and the second connecting plate (25) are connected in V shape, and a spiral spring (27) is fixedly connected between the first connecting plate (26) and the second connecting plate (25), and a protection and heat dissipation assembly (4) is arranged on one side of the filter (23).
4. The multi-person talkback apparatus having an anti-interference function according to claim 3, characterized in that: The protection and heat dissipation assembly (4) comprises a composite plate (41) connected in the containing groove (21) through bolts, a heat dissipation window (42) is fixedly arranged on the composite plate (41), an installation groove (43) is arranged on the composite plate (41), the heat dissipation window (42) is located in the installation groove (43), a sealing plate (44) is slidably arranged in the installation groove (43), and an insertion plate (47) is fixedly arranged on the top end of the sealing plate (44).
5. The multi-person talkback apparatus having an anti-interference function according to claim 4, characterized in that: A socket (49) is arranged on the inside top end of the installation groove (43), the insertion plate (47) is inserted into the socket (49), a containing cavity (410) is arranged on the composite plate (41), a positioning rod (411) is arranged on the composite plate (41), one end of the positioning rod (411) passes through the containing cavity (410) and is inserted into the insertion plate (47) in the socket (49).
6. The multi-person talkback apparatus having an anti-interference function according to claim 5, characterized in that: A fixed ring (412) is fixedly arranged on the positioning rod (411), the fixed ring (412) is located in the containing cavity (410), an extrusion spring (413) is fixedly arranged on the fixed ring (412), one end of the extrusion spring (413) is fixedly connected with the inner wall of the containing cavity (410), and a hand pulling block (414) is fixedly arranged on the positioning rod (411).
7. The multi-person talkback apparatus with anti-interference function according to claim 1, characterized in that: A plurality of control keys (6) are arranged on the multi-person intercom (1), and a loudspeaker (7) is fixedly arranged on the multi-person intercom (1).