Portable multi-module integrated law enforcement recorder

Abstract

The utility model relates to law enforcement recorder technical field, and disclose a kind of portable multi-module integrated law enforcement recorder, to solve the contradiction of existing equipment portability and expansibility, the problem of low dismounting efficiency.It includes portable backplate and law enforcement recorder, both are detachably connected through quick release structure containing parallel slide rail, U-shaped slot and buckle;Portable backplate back side is equipped with U-shaped fixed shoulder clamp and nylon bandage, realize multi-scene fixation;Law enforcement recorder surface distributes wide-angle lens, sound-light component, screen and button area, lower half area is equipped with module assembly, module interface has magnetic attraction ring and brass contact, can quickly install signal transmission, NFC card reading, laser ranging and other expansion modules, the utility model realizes lightweight carrying and multifunctional integration, module dismounting does not need tool, adapt to public security, traffic and other law enforcement scene, improve law enforcement efficiency and equipment applicability.

Description

Technical Field

[0001] This utility model relates to the field of law enforcement recorder technology, specifically a portable multi-module integrated law enforcement recorder. Background Technology

[0002] The core business objective of law enforcement recorder R&D and manufacturing companies is to provide law enforcement agencies such as public security, traffic, and urban management with law enforcement equipment that is adaptable to actual combat scenarios, easy to operate, and lightweight. Existing law enforcement recorder products have several core pain points and cannot meet the actual needs of law enforcement agencies. The specific pain points are as follows:

[0003] The demand for equipment in law enforcement scenarios exhibits a "dynamic change" characteristic: daily patrols require lightweight and portable equipment to avoid physical strain from prolonged wear; scenarios such as document verification and accident scene measurement require equipment with extended functions such as identity recognition and distance measurement, eliminating the need to carry multiple dedicated devices. However, existing law enforcement recorders have significant limitations: one type is the all-in-one multi-functional model, which generally weighs over 500g after integrating multiple functions, and prolonged wear can easily cause shoulder and back fatigue for law enforcement officers, failing to meet the requirements for lightweight patrols; the other type is the single-function portable model, which, although weighing less than 300g, only has basic video recording and photo taking functions. When facing scenarios such as identity verification and on-site distance measurement, additional dedicated equipment is required, which not only increases the carrying burden but may also delay the timing of evidence collection due to equipment switching.

[0004] Although some law enforcement recorders are labeled with "expandable module" functions, the actual structural design has obvious defects: the modules are mostly fixed by screws, and the disassembly and assembly process requires tools. A single operation usually takes more than 1 minute, which cannot meet the "rapid response" requirements in law enforcement scenarios.

[0005] In summary, to address the pain points of law enforcement agencies in practical use, we propose a portable multi-module integrated law enforcement recorder. This not only achieves lightweighting of law enforcement equipment, making it easy to carry and use, but also enables multi-functional integration through the quick replacement of different modules, enhancing the versatility of the law enforcement recorder and driving its development towards a direction more suited to practical needs. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a portable multi-module integrated law enforcement recorder, which solves the aforementioned problems.

[0007] To achieve the aforementioned objectives, this utility model provides the following technical solution: a portable multi-module integrated law enforcement recorder, comprising a portable back panel and a law enforcement recorder, wherein the portable back panel and the law enforcement recorder are detachably connected together via a quick-release structure. The portable back panel is generally rectangular, and a U-shaped shoulder clip is fixedly installed on the upper half of the back side of the portable back panel. Nylon straps are fixedly installed on both sides of the lower half of the portable back panel, and Velcro fasteners are fixedly installed at the ends of the nylon straps. The surface of the law enforcement recorder, from top to bottom, includes a wide-angle lens, an audio-visual component, a screen, and a button area. The audio-visual component includes a siren and a dual-flash light. The dual-flash light is installed on the top of the law enforcement recorder, and the siren is installed on one side of the law enforcement recorder. A battery is fixedly installed inside the portable back panel. The feature is that it further includes:

[0008] The module component is located in the lower half of the law enforcement recorder. The module component includes a module interface, a waterproof plug, and a transmission port. Two sets of module interfaces are equidistantly provided on the bottom of the law enforcement recorder, and a removable waterproof plug is snapped on each of the module interfaces on the bottom of the law enforcement recorder. A transmission port for signal transmission is also provided on the side of the law enforcement recorder.

[0009] Preferably, a strong magnet is embedded inside the fixed shoulder clip, and a metal block for adsorption is fixedly installed inside the back panel of the portable back panel at the position corresponding to the strong magnet, and an anti-slip pad for preventing slippage is fixedly installed on the inner wall of the fixed shoulder clip.

[0010] Preferably, the quick-release structure includes parallel slide rails, U-shaped slots, and buckles. Two sets of parallel slide rails are fixedly installed on the front of the portable back panel, and a U-shaped slot for insertion into the law enforcement recorder is fixedly installed on the bottom of the portable back panel corresponding to the parallel slide rails. Buckles are also fixedly installed on the portable back panel by springs, and matching locking blocks are fixedly installed on the back side of the law enforcement recorder at positions corresponding to the parallel slide rails and U-shaped slots.

[0011] Preferably, the buckle is hemispherical in shape, and an unlocking component is slidably installed on one side of the portable back panel corresponding to the buckle position, with one end of the unlocking component extending to the outside of the portable back panel.

[0012] Preferably, the module interface has a magnetic ring for magnetic fixation fixed inside, and a plurality of brass contacts are equidistantly installed on the inner ring of the magnetic ring. The module interface installs the expansion module through the cooperation between the magnetic ring and the brass contacts.

[0013] Preferably, the expansion module includes a signal transmission module, an NFC card reader module, and a laser ranging module.

[0014] Compared with the prior art, this utility model provides a portable multi-module integrated law enforcement recorder, which has the following beneficial effects:

[0015] 1. This portable multi-module integrated law enforcement recorder features a two-in-one structure design combining a portable back panel and a law enforcement recorder. With a U-shaped fixed shoulder clip on the back of the portable back panel and nylon straps on both sides, it can be adapted to various carrying scenarios such as shoulder patches, armbands, and belts. At the same time, the overall weight is reasonably controlled, which avoids the heavy burden of integrated multi-functional models and solves the carrying limitations of single-function portable models, thus meeting the dual needs of lightweight carrying and multi-scenario fixation.

[0016] 2. This portable multi-module integrated law enforcement recorder, relying on the quick-release structure and unlocking mechanism, allows law enforcement officers to detach and assemble the recorder and portable back panel in just one second without the need for tools, simply by pressing the unlocking mechanism with one hand. Furthermore, the module interface is equipped with a magnetic ring and brass contacts, allowing expansion modules to be quickly installed through magnetic attraction and conductivity. Compared to traditional screw fixing methods, this significantly shortens the module assembly and disassembly time, meeting the needs of rapid response in law enforcement scenarios.

[0017] 3. This portable multi-module integrated law enforcement recorder can be equipped with different expansion modules as needed through two sets of module interfaces at the bottom and a side transmission port, realizing diverse functions such as basic video recording, identity verification, distance measurement, and signal transmission. There is no need to carry multiple dedicated devices. At the same time, the module interfaces are equipped with removable waterproof plugs to ensure protection performance when not in use. This not only solves the problem of single or redundant functions of traditional devices, but also improves the applicability and durability of the device in complex law enforcement environments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of one side of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the portable back panel structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixed shoulder clip structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the quick-release structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the back structure of the law enforcement recorder of this utility model;

[0024] Figure 7 This is a schematic diagram of the modular component structure of this utility model.

[0025] In the image: 1. Portable back panel; 2. Law enforcement recorder; 3. Fixed shoulder clip; 4. Nylon strap; 5. Wide-angle lens; 6. Audio-visual components; 7. Screen; 8. Button area; 9. Module interface; 10. Waterproof plug; 11. Transmission port; 12. Strong magnet; 13. Anti-slip pad; 14. Parallel slide rail; 15. U-shaped slot; 16. Buckle; 17. Unlocking device; 18. Magnetic ring; 19. Brass contact. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-7 A portable multi-module integrated law enforcement recorder includes a portable back panel 1 and a law enforcement recorder 2. The portable back panel 1 and the law enforcement recorder 2 are detachably connected together via a quick-release structure. The portable back panel 1 is rectangular in shape, and a U-shaped shoulder clip 3 is fixedly installed on the upper half of the back side of the portable back panel 1. Nylon straps 4 are fixedly installed on both sides of the lower half of the portable back panel 1, and Velcro fasteners are fixedly installed at the ends of the nylon straps 4. The surface of the law enforcement recorder 2 has a wide-angle lens 5, an audio-visual component 6, a screen 7, and a button area 8 arranged from top to bottom. The audio-visual component 6 includes a siren and a hazard light. The hazard light is installed on the top of the law enforcement recorder 2, and the siren is installed on one side of the law enforcement recorder 2. A battery is fixedly installed inside the portable back panel 1. The device further includes:

[0028] The module component is located in the lower half of the law enforcement recorder 2. The module component includes a module interface 9, a waterproof plug 10, and a transmission port 11. Two sets of module interfaces 9 are equidistantly provided on the bottom of the law enforcement recorder 2, and a removable waterproof plug 10 is snapped on the bottom of the law enforcement recorder 2 at the position corresponding to the module interface 9. A transmission port 11 for signal transmission is also provided on the side of the law enforcement recorder 2.

[0029] Furthermore, a strong magnet 12 is embedded inside the fixed shoulder clip 3, and a metal block for adsorption is fixedly installed inside the back plate of the portable back plate 1 at the position corresponding to the strong magnet 12. An anti-slip pad 13 for preventing slippage is fixedly installed on the inner wall of the fixed shoulder clip 3.

[0030] Furthermore, the quick-release structure includes parallel slide rails 14, U-shaped slots 15, and buckles 16. Two sets of parallel slide rails 14 are fixedly installed on the front of the portable back panel 1, and a U-shaped slot 15 for insertion into the law enforcement recorder 2 is fixedly installed on the bottom of the portable back panel 1 corresponding to the parallel slide rails 14. Buckles 16 are also fixedly installed on the portable back panel 1 by springs. And corresponding locking blocks are fixedly installed on the back side of the law enforcement recorder 2 at the positions of the parallel slide rails 14 and the U-shaped slots 15.

[0031] Furthermore, the buckle 16 is hemispherical in shape, and an unlocking component 17 is slidably installed on one side of the portable back panel 1 at the position corresponding to the buckle 16, with one end of the unlocking component 17 extending to the outside of the portable back panel 1.

[0032] Furthermore, a magnetic ring 18 for magnetic fixation is fixedly installed inside the module interface 9, and a number of brass contacts 19 are equidistantly installed on the inner ring of the magnetic ring 18. The module interface 9 installs the expansion module through the cooperation between the magnetic ring 18 and the brass contacts 19.

[0033] Furthermore, the expansion module includes a signal transmission module, an NFC card reader module, and a laser ranging module. Example

[0034] Example 1: The portable back panel 1 provides basic fixation and battery life support for the device. The internally fixed battery powers the law enforcement recorder 2 and its expansion module. The U-shaped shoulder clip 3 on the upper half of the back panel, through strong magnetic adsorption and cooperation with the inner anti-slip pad 13, securely clamps the device to the law enforcement officer's shoulder. The nylon straps 4 on both sides of the lower half of the back panel are secured to the arm via Velcro at the ends, achieving dual portability and fixation. The law enforcement recorder 2 is connected to the portable back panel 1 via a quick-release structure. Its back-side latch slides into the parallel slide rail 14 on the front of the portable back panel 1, and its bottom engages with the U-shaped slot 15. The hemispherical buckle 16 on the portable back panel 1, under the action of a spring, locks the latch to complete the fixation. The wide-angle lens 5 on the surface of the law enforcement recorder 2 is used for 1080... P / 4K recording; a sound and light component 6 consisting of dual flashlights on top and a horn on one side can trigger an alarm; a 2.0-inch screen 7 displays recording duration, module status, and remaining battery power; a button area 8 enables one-click recording and other operations; when the NFC card reader function is needed, remove the waterproof plug 10 from the module interface 9, and install the NFC card reader module by magnetic attraction ring 18 and conductive contact with brass contacts 19; the side transmission port 11 ensures stable data transmission. The beneficial effect of this embodiment is that the dual fixing structure is suitable for daily patrol scenarios, and the quick-release and magnetic module design enables rapid function switching, meeting the needs of law enforcement officers for lightweight carrying and basic law enforcement functions, and is suitable for routine law enforcement scenarios such as community visits and street patrols.

[0035] Example 2: The portable back panel 1 is clipped to the shoulder strap of the law enforcement uniform via the back-side fixing shoulder clip 3. The nylon strap 4 can be selectively fixed to the waist belt as needed to reduce arm constriction. When the law enforcement recorder 2 needs to be used alone, press the unlocking piece 17 on one side of the portable back panel 1 to drive the buckle 16 to compress the spring and release the lock. The law enforcement recorder 2 can then be pulled out along the parallel slide rail 14 for close-range photo taking and evidence collection. When handling traffic accident scenes, install the laser rangefinder module to the module interface 9, activate the rangefinder function through the button area 8, and display the measurement data in real time on the screen 7 and associate it with the recording. For example, when the network is interrupted, the law enforcement recorder 2 automatically stores the video in the built-in storage through the signal transmission module connected to the transmission port 11. After the network is restored, a pop-up window appears on the screen 7, and pressing the confirmation button triggers the retransmission. The waterproof plug 10 seals the interface when the module is not installed, ensuring IP68 waterproof performance. The beneficial effects of this embodiment are that the quick-release structure allows the device to be used independently, the offline storage and retransmission functions prevent data loss, the laser ranging module meets the requirements for accident liability determination, and it is suitable for complex scenarios such as traffic accident handling and outdoor law enforcement, improving law enforcement efficiency and evidence integrity.

[0036] Portable backplate 1, as the basic component for carrying and fixing the device, is rectangular in shape and made of high-strength material. It has a battery installed inside to power the whole device. The front has a quick-release structure to adapt to the law enforcement recorder 2, and the back provides a mounting base for fixing in multiple scenarios. It is the core carrier for realizing the lightweight carrying of the device.

[0037] The law enforcement recorder 2 is detachably connected to the portable back panel 1 via a quick-release structure. Functional components are distributed on its surface from top to bottom. It is the core component for law enforcement recording and function expansion. The lower half of the area is equipped with module components, and the side has a transmission port 11. Expansion modules can be installed as needed to meet diverse law enforcement needs.

[0038] The fixed shoulder clip 3 has a U-shaped structure and is fixedly installed on the upper half of the back side of the portable back panel 1. It has a strong magnet 12 embedded inside and an anti-slip pad 13 fixedly installed on the inner wall. The strong magnet 12 is attracted and cooperates with the corresponding metal block inside the portable back panel 1. The anti-slip pad 13 prevents slippage. It is mainly used to fix the device to the shoulder patch position of law enforcement officers.

[0039] The nylon strap 4 consists of two sets, which are fixedly installed on both sides of the lower half of the portable back panel 1. The ends of the straps are fixedly fitted with Velcro. By using the Velcro, the device can be fixed to the arms, belts, etc. of law enforcement officers, forming a multi-scenario fixation combination with the fixed shoulder clip 3.

[0040] Wide-angle lens 5 is located on the upper part of the surface of the law enforcement recorder 2. It has the ability to switch between 1080P and 4K recording and can capture a wider range of law enforcement scenes, providing clear and complete video recording of the law enforcement process. It is a key component for the device to realize the recording function.

[0041] The sound and light component 6 includes a horn and a double flashing light. The double flashing light is installed on the top of the law enforcement recorder 2, and the horn is installed on the side of the law enforcement recorder 2. It can emit sound and light warnings during law enforcement, which can serve as a deterrent and reminder, and is suitable for emergency law enforcement scenarios.

[0042] Screen 7 is a 2.0-inch non-touchscreen located in the center of the surface of the law enforcement recorder 2. It is used to display key information such as recording duration, current module status, and remaining battery power, so that law enforcement officers can obtain device operation data in real time and avoid information redundancy and interference.

[0043] Button area 8 is located on the lower part of the surface of the law enforcement recorder 2. It includes a power button, a recording button, a function switching button, and a confirmation button. It adopts a physical button design, supports operation while wearing gloves, and can realize operations such as powering on and off the device, starting recording with one button, and switching module functions, ensuring convenient law enforcement operation.

[0044] Module interface 9, there are two sets of module interfaces, which are equidistantly located at the bottom of the law enforcement recorder 2. A magnetic ring 18 is fixedly installed inside. Several brass contacts 19 are equidistantly installed on the inner ring of the magnetic ring 18. Through the adsorption and fixation of the magnetic ring 18 and the conductive contact of the brass contacts 19, the expansion module can be quickly installed and data can be transmitted.

[0045] Waterproof rubber plug 10 is a detachable structure that is snapped into place at the bottom of the law enforcement recorder 2 at the position corresponding to the module interface 9. When no expansion module is installed on the module interface 9, it serves to seal the interface and prevent water or dust from entering, thus ensuring the protective performance of the equipment.

[0046] The transmission port 11 is located on the side of the law enforcement recorder 2. It is mainly used for signal transmission and can be connected to a signal transmission module to realize the real-time transmission of law enforcement data. At the same time, in conjunction with the device's offline storage function, the data can be retransmitted after the network is restored to ensure the integrity of the evidence chain.

[0047] A strong magnet 12 is embedded inside the fixed shoulder clip 3 and attracts the metal block at the corresponding position inside the portable back plate 1, thereby enhancing the connection stability between the fixed shoulder clip 3 and the portable back plate 1, and thus improving the firmness of the device fixed on the shoulder strap, preventing it from loosening when running.

[0048] Anti-slip pad 13 is fixedly installed on the inner wall of fixed shoulder clip 3. It is made of anti-slip material. When fixed shoulder clip 3 is clipped on the shoulder, it increases the friction with clothing and prevents the equipment from slipping off due to shaking or collision during law enforcement, thus ensuring carrying stability.

[0049] Parallel slide rails 14, two sets in total, are fixedly installed on the front of the portable back panel 1 and are distributed in parallel. They provide sliding guide rails for the connection between the law enforcement recorder 2 and the portable back panel 1, ensuring that the law enforcement recorder 2 moves along a fixed path when it is disassembled and assembled, thus improving the smoothness of disassembly and assembly.

[0050] U-shaped slot 15 is fixedly installed at the bottom of the portable back panel 1 corresponding to the parallel slide rail 14 and is inserted into the locking block on the back of the law enforcement recorder 2. When the law enforcement recorder 2 is installed along the parallel slide rail 14, it plays an auxiliary positioning and bottom support role, enhancing the stability of the connection between the two.

[0051] The buckle 16 is fixedly installed on the portable back panel 1 by a spring. The buckle 16 is hemispherical in shape. When the law enforcement recorder 2 is installed on the portable back panel 1, the buckle 16 is locked into the corresponding slot on the back of the law enforcement recorder 2 by the action of the spring, so as to lock the two together and prevent the device from falling off accidentally.

[0052] The unlocking component 17 is slidably installed on one side of the portable back panel 1 at the position corresponding to the buckle 16, with one end extending to the outside of the portable back panel 1. Pressing the unlocking component 17 can drive the buckle 16 to compress the spring and disengage from the slot, thereby releasing the lock on the law enforcement recorder 2 and facilitating law enforcement officers to quickly disassemble the device.

[0053] The magnetic ring 18 is fixedly installed inside the module interface 9. It is made of strong magnetic material. When installing the expansion module, the magnetic force will quickly attract and position the expansion module, ensuring that the expansion module is accurately connected to the module interface 9 and simplifying the installation operation.

[0054] Brass contacts 19 are equidistantly mounted on the inner ring of the magnetic ring 18, and have good conductivity. After the expansion module is fixed by magnetic ring 18, the brass contacts 19 make contact with the corresponding contacts of the expansion module, realizing current transmission and data interaction between the device and the expansion module.

[0055] When using the device, the appropriate method can be selected based on the law enforcement scenario. During routine patrols, the U-shaped shoulder clip 3 on the back of the portable backplate 1 is clipped onto the shoulder straps of the law enforcement uniform. The strong magnet 12 adheres to the metal block inside the portable backplate 1, and the anti-slip pad 13 on the inner wall fits the clothing to prevent slippage. To relieve shoulder and neck strain, the nylon straps 4 on both sides of the lower half of the portable backplate 1 are wrapped around the arm or waist belt and secured with Velcro at the ends for double stability. When assembling the main unit and the backplate, align the locking block on the back of the law enforcement recorder 2 with the top opening of the parallel slide rail 14 on the front of the portable backplate 1 and push it downwards along the slide rail until the law enforcement recorder... The bottom of the device 2 is inserted into the U-shaped slot 15. The hemispherical buckle 16 on the portable back panel 1 automatically engages with the slot of the law enforcement recorder 2 under the action of the spring, and completes the locking. After assembly, the power status of the device can be confirmed through the screen 7. In terms of basic law enforcement function operation, press the power button on the button area 8 on the surface of the law enforcement recorder 2 to turn it on. After the screen 7 lights up, press the record button to start the recording function of the wide-angle lens 5. When an audible and visual warning is required, select the audible and visual component 6 through the function key to activate the top double flashing light or the side siren. The intensity of the 200-lumen bright light can be adjusted through the function key. The low-light mode is adapted to the lighting needs of nighttime law enforcement. During law enforcement, the screen 7 displays three core pieces of information in real time: the recording duration dynamically changing at the top, the current module connection status in the middle, and the remaining battery power at the bottom. When installing the expansion module and processing data, if the expansion function is needed, remove the waterproof plug 10 on the module interface 9 at the bottom of the law enforcement recorder 2, align the target expansion module with the module interface 9, and it will automatically be positioned by the adsorption force of the internal magnetic ring 18. The module contacts will then be in contact with the brass contacts 19 on the inner ring of the magnetic ring 18, and at this time, the dual flashlights on the top of the law enforcement recorder 2 will flash once. Screen 7 displays the module name to confirm successful installation. When installing the signal transmission module, connect it to the transmission port 11 on the side of the law enforcement recorder 2 to achieve 4G / Wi-Fi signal connection and GPS positioning. If the network is interrupted during law enforcement, the signal transmission module will automatically store the video data in the built-in 64GB storage. After the network is restored, a pop-up window on screen 7 will prompt "Offline file detected, do you want to re-transmit?" Press the confirmation button to trigger the re-transmission. The data is stably uploaded through the transmission port 11 without manual intervention. The data collected by the extension module is automatically associated with the current video file to ensure the continuity of the evidence chain.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable multi-module integrated law enforcement recorder, comprising a portable back panel (1) and a law enforcement recorder (2), wherein the portable back panel (1) and the law enforcement recorder (2) are detachably connected together by a quick-release structure, the portable back panel (1) is rectangular in shape, and a U-shaped fixed shoulder clip (3) is fixedly installed on the upper half of the back side of the portable back panel (1), and nylon straps (4) are fixedly installed on both sides of the lower half of the portable back panel (1), and Velcro fasteners are fixedly installed at the ends of the nylon straps (4), and a wide-angle lens (5), an audio-visual component (6), a screen (7), and a button area (8) are distributed from top to bottom on the surface of the law enforcement recorder (2), the audio-visual component (6) includes a horn and a double flashlight, the double flashlight is installed on the top of the law enforcement recorder (2), the horn is installed on one side of the law enforcement recorder (2), and a battery is fixedly installed inside the portable back panel (1), characterized in that: Also includes: The module component is located in the lower half of the law enforcement recorder (2). The module component includes a module interface (9), a waterproof rubber plug (10), and a transmission port (11). Two sets of module interfaces (9) are equidistantly provided on the bottom of the law enforcement recorder (2). A removable waterproof rubber plug (10) is snapped into place on the bottom of the law enforcement recorder (2) at the position corresponding to the module interface (9). A transmission port (11) for signal transmission is also provided on the side of the law enforcement recorder (2).

2. The portable multi-module integrated law enforcement recorder according to claim 1, characterized in that: The fixed shoulder clip (3) is internally fitted with a strong magnet (12), and a metal block for adsorption is fixedly installed inside the back plate of the portable back plate (1) at the position corresponding to the strong magnet (12), and an anti-slip pad (13) for preventing it from slipping is fixedly installed on the inner wall of the fixed shoulder clip (3).

3. A portable multi-module integrated law enforcement recorder according to claim 1, characterized in that: The quick-release structure includes a parallel slide rail (14), a U-shaped groove (15), and a buckle (16). Two sets of parallel slide rails (14) are fixedly installed on the front of the portable back panel (1), and a U-shaped groove (15) that is inserted into the law enforcement recorder (2) is fixedly installed on the bottom of the portable back panel (1) corresponding to the parallel slide rails (14). A buckle (16) is also fixedly installed on the portable back panel (1) by a spring. A matching locking block is fixedly installed on the back side of the law enforcement recorder (2) at the positions corresponding to the parallel slide rails (14) and the U-shaped groove (15).

4. A portable multi-module integrated law enforcement recorder according to claim 3, characterized in that: The buckle (16) is hemispherical in shape, and an unlocking component (17) is slidably installed on one side of the portable back panel (1) at the position corresponding to the buckle (16), and one end of the unlocking component (17) extends to the outside of the portable back panel (1).

5. A portable multi-module integrated law enforcement recorder according to claim 1, characterized in that: The module interface (9) is internally fixed with a magnetic ring (18) for magnetic fixation, and the inner ring of the magnetic ring (18) is equidistantly equipped with a number of brass contacts (19). The module interface (9) installs the expansion module through the cooperation between the magnetic ring (18) and the brass contacts (19).

6. A portable multi-module integrated law enforcement recorder according to claim 5, characterized in that: The expansion module includes a signal transmission module, an NFC card reader module, and a laser ranging module.

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