Electric quantity supplementing device of law enforcement instrument and law enforcement instrument

Abstract

The utility model relates to an electric quantity supplementing device of a law enforcement instrument and the law enforcement instrument, and the electric quantity supplementing device of the law enforcement instrument comprises a mobile power supply which comprises an electric energy output port; the mobile power supply protection shell comprises a first shell body and a second shell body, the first shell body and the second shell body are closed to form a containing cavity to wrap a mobile power supply, the top of the first shell body is provided with a first elastic contact structure, and the top of the second shell body is provided with a second elastic contact structure. The first elastic contact structure and the second elastic contact structure are symmetrically arranged, both the first elastic contact structure and the second elastic contact structure are electrically connected with the electric energy output port, and both the first elastic contact structure and the second elastic contact structure are adsorbed with the electric contact, so that the mobile power supply provides electric power support for the law enforcement instrument. Through cooperative use of the electric quantity supplementing device and the law enforcement instrument, timely supply of electric quantity of the law enforcement instrument is realized, integrity of law enforcement records is guaranteed, influence of external environment is reduced through the mobile power supply protection shell, and applicability of the electric quantity supplementing device is improved.

Description

Technical Field

[0001] This utility model relates to the field of law enforcement recorder technology, and in particular to a power replenishment device for law enforcement recorders and a law enforcement recorder. Background Technology

[0002] With the widespread application of body-worn cameras in various law enforcement fields such as public security, traffic, and urban management, they are playing an increasingly important role in ensuring fairness in law enforcement, recording the law enforcement process, and providing evidence. However, existing body-worn cameras generally suffer from limited battery capacity, making it difficult to operate continuously during long-term law enforcement activities, thus affecting the integrity and effectiveness of the law enforcement records. In addition, existing body-worn cameras mostly use wired charging, which is inconvenient to operate and easily affected by external environmental factors such as rain and dust during law enforcement, reducing the safety and reliability of the charging process.

[0003] In response to the aforementioned problems, various power replenishment devices, such as portable power banks, have emerged on the market. However, most of these devices suffer from issues such as unstable connections, complex operation, and poor adaptability. For example, some devices use traditional plug-and-play connections, which are unstable and prone to detachment during law enforcement. Others are complex to operate, requiring manual connection and disconnection of the power supply, which affects law enforcement efficiency. Still others lack dustproof and waterproof designs, making them unsuitable for outdoor law enforcement environments. Utility Model Content

[0004] This utility model provides a power replenishment device for law enforcement recorders and a law enforcement recorder, aiming to solve at least one of the technical problems existing in the prior art.

[0005] The technical solution of this utility model is a power replenishment device for a law enforcement recorder. The law enforcement recorder has electrical contacts at its bottom, and the power replenishment device includes:

[0006] Portable power bank, including power output port;

[0007] A protective casing for a portable power bank includes a first casing and a second casing. The first casing and the second casing are closed to form a receiving cavity to enclose the portable power bank. A first elastic contact structure is provided on the top of the first casing, and a second elastic contact structure is provided on the top of the second casing. The first elastic contact structure and the second elastic contact structure are symmetrically arranged. Both the first elastic contact structure and the second elastic contact structure are electrically connected to the power output port. Both the first elastic contact structure and the second elastic contact structure are attracted to the electrical contacts so that the portable power bank provides power support to the law enforcement device.

[0008] According to some embodiments of this utility model, the protective shell of the power bank is provided with a first buckle and a second buckle on both sides, the first buckle is used to connect with the first card interface of the law enforcement device, and the second buckle is used to connect with the second card interface of the law enforcement device.

[0009] According to some embodiments of the present invention, the first buckle is fixedly connected to one side of the power bank protective shell, and the second buckle is movably connected to the other side of the power bank protective shell.

[0010] According to some embodiments of the present invention, the second buckle is provided with an elastic button, which is used to make the second buckle spring open when it is pressed externally.

[0011] According to some embodiments of this utility model, the bottom of the law enforcement device is provided with a magnetic attraction area, and the top of the protective shell of the mobile power supply is provided with a magnetic attraction structure, and the positions of the magnetic attraction area and the magnetic attraction structure correspond.

[0012] According to some embodiments of this utility model, the protective shell of the mobile power supply is further provided with a first arc-shaped positioning structure and a second arc-shaped positioning structure on both sides, and the first arc-shaped positioning structure and the second arc-shaped positioning structure are matched with the shapes of the two sides of the bottom of the law enforcement device.

[0013] According to some embodiments of the present invention, the first arc-shaped positioning structure is disposed on the inner side of the first buckle and fits against the first buckle, and the second arc-shaped positioning structure is disposed on the inner side of the second buckle and fits against the second buckle.

[0014] This utility model embodiment also provides a law enforcement recorder, including the power replenishment device described in the above embodiment, and the law enforcement recorder further includes:

[0015] The law enforcement recorder body is attached to the first elastic contact structure and the second elastic contact structure of the mobile power supply protective shell through electrical contacts provided at the bottom, so that the law enforcement recorder body and the power replenishment device are electrically connected.

[0016] The device includes a support frame, and an installation structure is provided between the device body and the support frame to allow for detachable connection between the support frame and the device body.

[0017] According to some embodiments of the present invention, the mounting structure includes a mounting housing disposed on the body of the law enforcement recorder and a snap-fit ​​component disposed on the wearing bracket.

[0018] According to some embodiments of the present invention, the snap-fit ​​component includes an adjustment structure for adjusting the position and orientation of the wearing bracket.

[0019] The power replenishment device and the law enforcement recorder provided by this utility model have at least one of the following advantages or beneficial effects: the first and second shells of the power supply protective shell form a cavity after being closed, which is used to wrap the power supply, prevent the power supply from being affected by the external environment during use, improve the durability and safety of the power replenishment device, and also achieve dustproof and waterproof functions for the power supply, so that the power replenishment device can be used even in rainy weather, thus improving the applicability of the power replenishment device.

[0020] Both the first and second elastic contact structures are magnetically attached to the electrical contacts at the bottom of the law enforcement recorder, achieving physical connection and power transmission. This magnetic attachment ensures the stability of the electrical connection. The portable power supply provides power to the recorder through its output port, thus replenishing its battery. Therefore, when the recorder's battery is low, by attaching the power replenishment device to the recorder, it can be promptly recharged, ensuring the integrity of the law enforcement record. The elastic contact structure connects to the recorder's electrical contacts via magnetic attachment, making operation simple and enabling rapid power transmission.

[0021] Furthermore, additional aspects and advantages of the present invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a law enforcement recorder provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of a power replenishment device provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection between a law enforcement recorder and a power replenishment device according to an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of another law enforcement device provided in an embodiment of the present invention.

[0026] The above figures include the following reference numerals: 100, electrical contact; 200, first housing; 300, second housing; 210, first elastic contact structure; 310, second elastic contact structure; 410, first latch; 420, second latch; 421, elastic button; 110, first card interface; 120, second card interface; 510, first arc-shaped positioning structure; 520, second arc-shaped positioning structure; 700, law enforcement device body; 800, wearing bracket; 710, mounting housing; 810, snap-fit ​​component; 811, adjustment structure. Detailed Implementation

[0027] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0028] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," "right," "top," and "bottom" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0029] Furthermore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and not for limiting the scope of the invention. The term "and / or" as used herein includes any combination of one or more of the associated listed items.

[0030] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish elements of the same type from one another. For example, without departing from the scope of this disclosure, a first element may also be referred to as a second element, and similarly, a second element may also be referred to as a first element.

[0031] Reference Figures 1 to 4 The power replenishment device and the law enforcement recorder provided in this embodiment of the utility model enable timely power supply to the law enforcement recorder by working together, ensuring the integrity of the law enforcement record. The protective shell of the power bank provides dustproof and waterproof protection for the power bank, reducing the impact of the external environment and enabling the power replenishment device to be used even in rainy weather, thus improving the applicability of the power replenishment device.

[0032] Reference Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the structure of a law enforcement recorder provided in an embodiment of the present invention. The bottom of the law enforcement recorder is provided with electrical contacts 100. Figure 2This is a schematic diagram of a power replenishment device provided in an embodiment of the present invention. The power replenishment device includes a portable power source (not shown) and a protective shell for the portable power source. The portable power source includes a power output port. The protective shell for the portable power source includes a first shell 200 and a second shell 300. The first shell 200 and the second shell 300 are closed to form a receiving cavity to enclose the portable power source. A first elastic contact structure 210 is provided on the top of the first shell 200, and a second elastic contact structure 310 is provided on the top of the second shell 300. The first elastic contact structure 210 and the second elastic contact structure 310 are symmetrically arranged. Both the first elastic contact structure 210 and the second elastic contact structure 310 are electrically connected to the power output port. Both the first elastic contact structure 210 and the second elastic contact structure 310 are attracted to the electrical contact 100 so that the portable power source provides power support for the law enforcement device.

[0033] In some embodiments of this utility model, the electrical contact 100 at the bottom of the law enforcement device is used to receive power input from an external power source. The portable power supply includes a power output port for providing power to the law enforcement device. The protective shell of the portable power supply includes a first shell 200 and a second shell 300. When the first shell 200 and the second shell 300 are closed, they form a receiving cavity for enclosing the portable power supply. The first elastic contact structure 210 and the second elastic contact structure 310 are symmetrically arranged and are both electrically connected to the power output port to ensure power transmission. The first elastic contact structure 210 and the second elastic contact structure 310 are both adsorbed onto the electrical contact 100 at the bottom of the law enforcement device to achieve physical connection and power transmission. The adsorption effect is tightly combined with the electrical contact 100 of the law enforcement device to ensure the stability of the electrical connection. The portable power supply provides power support to the law enforcement device through the power output port, thereby achieving power replenishment.

[0034] When law enforcement recorders are in use, insufficient battery power may affect their operation. The detachable power replenishment device provided in this embodiment can quickly provide power to the recorder, ensuring the continuity of law enforcement work. When the recorder has sufficient power, there is no need to attach the power replenishment device to it, reducing the recorder's weight and improving the user experience for law enforcement officers. (Refer to...) Figure 3 As shown, Figure 3This is a schematic diagram illustrating the connection between a law enforcement recorder and a power replenishment device according to an embodiment of this utility model. When the law enforcement recorder's battery is low, the power replenishment device is magnetically attached to it for use. This allows for timely power replenishment when the recorder is used outdoors, ensuring the integrity of the law enforcement record. The elastic contact structure connects to the law enforcement recorder's electrical contacts 100 via magnetic attachment, simplifying operation and enabling rapid power transfer. The power bank's protective casing prevents the power bank from being affected by the external environment during use, improving the durability and safety of the power replenishment device. It also provides dust and water protection, allowing the power replenishment device to be used even in rainy weather, thus enhancing its applicability.

[0035] In some embodiments of this utility model, a first buckle 410 and a second buckle 420 are respectively provided on both sides of the protective shell of the power bank. The first buckle 410 is used to connect with the first card interface 110 of the law enforcement device, and the second buckle 420 is used to connect with the second card interface 120 of the law enforcement device.

[0036] Reference Figure 1 and Figure 2 As shown, the first latch 410 is used to connect to the first card interface 110 of the law enforcement recorder, and the second latch 420 is used to connect to the second card interface 120 of the law enforcement recorder. The latch design makes connecting and disconnecting the power replenishment device from the law enforcement recorder more convenient and quick; the operation can be completed simply by inserting or removing the latch. Furthermore, the connection between the first latch 410 of the power bank's protective housing and the first card interface 110 of the law enforcement recorder, and the connection between the second latch 420 of the power bank's protective housing and the second card interface 120 of the law enforcement recorder, provides a stable and reliable mechanical connection method, effectively preventing the power replenishment device from becoming loose due to vibration or movement during law enforcement.

[0037] The first latch 410 and the second latch 420 may wear or be damaged during frequent use, affecting the stability of the connection. Therefore, this embodiment of the invention considers using materials with high stability to manufacture the first latch 410 and the second latch 420, and adds elastic design to the latches to improve their durability. To prevent the first latch 410 and the second latch 420 of the power bank protective shell from being improperly connected to the first card interface 110 and the second card interface 120 of the law enforcement recorder due to misoperation in emergency situations, obvious alignment marks or locking mechanisms can be designed on the first latch 410, the second latch 420, and the first card interface 110 and the second card interface 120 to ensure the reliability of the connection.

[0038] In some embodiments of this utility model, the first buckle 410 is fixedly connected to one side of the power bank protective shell, and the second buckle 420 is movably connected to the other side of the power bank protective shell.

[0039] The first clip 410 is fixedly connected to one side of the power bank's protective housing, providing a stable connection base and ensuring that the power replenishment device will not easily loosen during use. The second clip 420 is movably connected to the other side of the power bank's protective housing, making connection and disassembly more convenient and flexible. Users can quickly adjust the position of the second clip 420 as needed to ensure that the power replenishment device is firmly fixed to the law enforcement device. The combination of the fixed and movable clips provides double protection, ensuring a stable connection even during vibration or movement during law enforcement. Furthermore, the second clip 420 can be designed to rotate to accommodate connection requirements at different angles. The second clip 420 can be made of elastic material or a spring structure, providing a certain degree of elastic deformation capability to prevent damage to the second clip 420 during connection of the power replenishment device and the law enforcement device, thus extending the lifespan of the power replenishment device.

[0040] In some embodiments of this utility model, the second buckle 420 is provided with an elastic button 421, which is used to make the second buckle 420 spring open when it is pressed by the outside.

[0041] The main function of the elastic button 421 is to make the second buckle 420 spring up by pressing it externally. This design allows users to quickly disassemble or adjust the position of the second buckle 420 to ensure that the second buckle 420 cooperates with the first buckle 410 and is successfully connected to the first card interface 110 and the second card interface 120 of the law enforcement device, thereby realizing the mechanical connection between the power replenishment device and the law enforcement device.

[0042] The elastic button 421 adopts a cantilever beam structure, utilizing the elasticity of the plastic to achieve the button's pressing and releasing. When the elastic button is pressed, the power replenishment device can be connected to and disconnected from the law enforcement recorder. Furthermore, to improve the reliability of the elastic button 421, this embodiment also incorporates anti-shake measures, optimizing the length, width, and thickness of the elastic arm to achieve optimal elasticity. This prevents accidental triggering of the elastic button due to misoperation or vibration, ensuring a stable connection of the power replenishment device to the law enforcement recorder and preventing it from falling off during charging, thus improving the safety of the power replenishment device.

[0043] In some embodiments of this utility model, the bottom of the law enforcement device is provided with a magnetic attraction area (not shown in the figure), and the top of the protective shell of the power bank is provided with a magnetic attraction structure (not shown in the figure), with the magnetic attraction area and the magnetic attraction structure corresponding to each other.

[0044] In this invention, the first elastic contact structure 210 and the second elastic contact structure 310 are attracted to the electrical contact 100. However, in certain situations (such as when the law enforcement device is moving), the connection between the first elastic contact structure 210, the second elastic contact structure 310, and the electrical contact 100 may loosen. Therefore, in this embodiment, an additional fixing mechanism is added to further improve the stability of the connection. By setting a magnetic attraction area at the bottom of the law enforcement device and a magnetic attraction structure at the top of the power protection housing, the positions of the magnetic attraction area and the magnetic attraction structure correspond to each other, ensuring that they can be quickly and accurately attracted together during use. The magnetic attraction structure provides a stable connection, and even if the device encounters vibration or movement during law enforcement, it will not easily fall off. This improves the stability of the connection between the law enforcement device and the power replenishment device, ensuring that the power replenishment device effectively charges the law enforcement device, thereby ensuring the continuity of law enforcement records.

[0045] In one embodiment, the bottom of the law enforcement device is provided with a magnetic attraction area, which includes a first magnetic block and a second magnetic block. The first and second magnetic blocks are symmetrically arranged on both sides of the electrical contact. The top of the power bank's protective shell is provided with a magnetic attraction structure, which includes a first magnetic contact and a second magnetic contact. The position of the first magnetic contact corresponds perpendicularly to the position of the first magnetic block, and the position of the second magnetic contact corresponds perpendicularly to the position of the second magnetic block. The positions of the magnetic attraction area and the magnetic attraction structure correspond to each other, ensuring that they can be quickly and accurately attracted together during use. The magnetic attraction structure provides a stable connection.

[0046] In some embodiments of this utility model, a first arc-shaped positioning structure 510 and a second arc-shaped positioning structure 520 are also provided on both sides of the protective shell of the power bank. The first arc-shaped positioning structure 510 and the second arc-shaped positioning structure 520 are matched with the shapes of the two sides of the bottom of the law enforcement device.

[0047] The bottom of the law enforcement recorder has an arc-shaped structure on both sides. The first arc-shaped positioning structure 510 and the second arc-shaped positioning structure 520 are located on both sides of the power bank protective shell. They match the shape of the bottom sides of the law enforcement recorder and can provide additional positioning and fixing functions to ensure that the power bank protective shell and the bottom of the law enforcement recorder fit precisely and are installed on the law enforcement recorder accurately and stably, preventing displacement or falling off during use and enhancing the stability of the connection between the power replenishment device and the law enforcement recorder.

[0048] In some embodiments of this utility model, the first arc-shaped positioning structure 510 is disposed on the inner side of the first buckle 410 and fits against the first buckle 410, and the second arc-shaped positioning structure 520 is disposed on the inner side of the second buckle 420 and fits against the second buckle 420.

[0049] The first arc-shaped positioning structure 510 is disposed on the inner side of the first buckle 410 and fits against the first buckle 410. The second arc-shaped positioning structure 520 is disposed on the inner side of the second buckle 420 and fits against the second buckle 420. This allows the first arc-shaped positioning structures 510 and 520 on both sides of the power bank protective shell and the arc-shaped structure at the bottom of the law enforcement device to work together to achieve precise positioning and fixation of the power bank protective shell and the law enforcement device. Then, the first buckle 410 of the power bank protective shell is connected to the first card interface 110 of the law enforcement device, and the second buckle 420 of the power bank protective shell is connected to the second card interface 120 of the law enforcement device, realizing the connection between the power replenishment device and the law enforcement device. Through the cooperation of the first arc-shaped positioning structure 510 and the first buckle 410 to connect with the law enforcement device, and the cooperation of the second arc-shaped positioning structure 520 and the second buckle 420 to connect with the law enforcement device, the power replenishment device can be firmly connected to the bottom of the law enforcement device, ensuring that the power replenishment device effectively charges the law enforcement device, thereby ensuring the continuity of law enforcement records.

[0050] This utility model embodiment also provides a law enforcement device, with reference to... Figure 4 As shown, Figure 4 This is a schematic diagram of another law enforcement recorder provided by an embodiment of the present invention. The law enforcement recorder includes the power replenishment device (not shown in the figure) of the above embodiment, as well as the law enforcement recorder body 700 and the wearing bracket 800. The law enforcement recorder body 700 is attracted to the first elastic contact structure 210 and the second elastic contact structure 310 of the mobile power supply protective shell through the electrical contact 100 provided at the bottom, so that the law enforcement recorder body 700 and the power replenishment device are electrically connected. An installation structure is provided between the law enforcement recorder body 700 and the wearing bracket 800 so that the wearing bracket 800 and the law enforcement recorder body 700 can be detachably connected.

[0051] The law enforcement recorder body 700 is magnetically connected to the power bank's protective shell via electrical contacts 100 at its bottom, which in turn attaches to the first elastic contact structure 210 and the second elastic contact structure 310, thus electrically connecting the law enforcement recorder body 700 and the power replenishment device. When the power of the law enforcement recorder body 700 is insufficient, the power replenishment device can be attached to the body for timely power replenishment during outdoor use, ensuring the integrity of law enforcement records. The elastic contact structure connects to the electrical contacts 100 of the law enforcement recorder via magnetic attachment, which is simple to operate and enables rapid power transmission. An installation structure is provided between the law enforcement recorder body 700 and the wearing bracket 800 for fixing and supporting the law enforcement recorder, facilitating its wear and use by law enforcement officers during operations. The wearing bracket 800 and the law enforcement recorder body 700 are detachably connected via the installation structure, increasing the flexibility and convenience of the law enforcement recorder and facilitating maintenance and replacement of the wearing bracket 800.

[0052] It should be noted that the wearing bracket 800 can be either a headband-type wearing bracket 800 or a neckband-type wearing bracket 800. Law enforcement officers record the law enforcement process by wearing the body camera on their head using the headband-type wearing bracket 800, or by wearing the body camera on their chest using the neckband-type wearing bracket 800. This improves the portability of the body camera and eliminates the need for law enforcement officers to manually hold the body camera to record, thus improving the user experience.

[0053] In some embodiments of this utility model, the mounting structure includes a mounting housing 710 disposed on the body of the law enforcement recorder 700 and a snap-fit ​​member 810 disposed on the wearing bracket 800.

[0054] An installation structure is provided between the law enforcement recorder body 700 and the wearing bracket 800 to allow for detachable connection between the wearing bracket 800 and the law enforcement recorder body 700. The installation structure includes a mounting housing 710 on the law enforcement recorder body 700 and a snap-fit ​​member 810 on the wearing bracket 800. The mounting housing 710 is designed to mate with the snap-fit ​​member 810 on the wearing bracket 800. The size of the mounting housing 710 is designed to match the shape and size of the snap-fit ​​member 810 to ensure a tight fit between the two. The mounting housing 710 and the snap-fit ​​member 810 enable quick disassembly and installation between the two, making the disassembly and installation between the law enforcement recorder body 700 and the wearing bracket 800 simple and quick, and facilitating maintenance and replacement.

[0055] In some embodiments of this utility model, the snap-fit ​​member 810 includes an adjustment structure 811 for adjusting the position and orientation of the wearing bracket 800.

[0056] The latching component 810 includes an adjustment structure 811 for adjusting the position and orientation of the wearing bracket 800. This design allows law enforcement officers to adjust the position and angle of the wearing bracket 800 according to the actual situation of the law enforcement process to adapt to different usage scenarios, ensuring the integrity and effectiveness of recording the law enforcement process. In one embodiment, the adjustment structure 811 includes multiple adjustment latches. When the mounting housing 710 of the law enforcement recorder body 700 is connected to different adjustment latches of the wearing bracket 800, the connection angle between the law enforcement recorder body 700 and the wearing bracket 800 is different, resulting in different recording angles for the law enforcement recorder, thus improving the comprehensiveness and applicability of the law enforcement recorder's recording.

[0057] The above description is merely a preferred embodiment of this utility model. This utility model is not limited to the above-described embodiments. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this disclosure, as long as they achieve the same technical effect, should be included within the scope of protection of this disclosure and fall under the protection scope of this utility model. Within the protection scope of this utility model, the technical solutions and / or implementation methods can have various modifications and variations.

Claims

1. A power supply device for a law enforcement instrument, characterized in that, The bottom of the law enforcement recorder is provided with an electrical contact (100), and the power replenishment device of the law enforcement recorder includes: Portable power bank, including power output port; The portable power bank protective casing includes a first casing (200) and a second casing (300). The first casing (200) and the second casing (300) are closed to form a receiving cavity to enclose the portable power bank. A first elastic contact structure (210) is provided on the top of the first casing (200), and a second elastic contact structure (310) is provided on the top of the second casing (300). The first elastic contact structure (210) and the second elastic contact structure (310) are symmetrically arranged. Both the first elastic contact structure (210) and the second elastic contact structure (310) are electrically connected to the power output port. Both the first elastic contact structure (210) and the second elastic contact structure (310) are attracted to the electrical contact (100) so that the portable power bank provides power support to the law enforcement device.

2. The power supply device of the law enforcement instrument according to claim 1, characterized in that, The protective shell of the power bank is provided with a first buckle (410) and a second buckle (420) on both sides respectively. The first buckle (410) is used to connect with the first card interface (110) of the law enforcement device, and the second buckle (420) is used to connect with the second card interface (120) of the law enforcement device.

3. The power supply device of the law enforcement instrument according to claim 2, characterized in that, The first buckle (410) is fixedly connected to one side of the power bank protective shell, and the second buckle (420) is movably connected to the other side of the power bank protective shell.

4. The power supply device of the law enforcement instrument according to claim 2, characterized in that, The second buckle (420) is provided with a spring button (421), which is used to make the second buckle (420) spring up when it is pressed by the outside.

5. The power supply device of the law enforcement instrument according to claim 1, characterized in that, The bottom of the law enforcement device is provided with a magnetic attraction area, and the top of the protective shell of the power bank is provided with a magnetic attraction structure. The positions of the magnetic attraction area and the magnetic attraction structure correspond.

6. The power replenishment device for the law enforcement recorder according to claim 2, characterized in that, The protective shell of the power bank is also provided with a first arc-shaped positioning structure (510) and a second arc-shaped positioning structure (520) on both sides, and the first arc-shaped positioning structure (510) and the second arc-shaped positioning structure (520) are matched with the shape of the two sides of the bottom of the law enforcement device.

7. The power supply device of the law enforcement instrument according to claim 6, characterized in that, The first arc-shaped positioning structure (510) is disposed on the inner side of the first buckle (410) and fits against the first buckle (410), and the second arc-shaped positioning structure (520) is disposed on the inner side of the second buckle (420) and fits against the second buckle (420).

8. A law enforcement instrument, characterized in that, The law enforcement device further includes the power replenishment device as described in any one of claims 1 to 7, and further includes: The law enforcement recorder body (700) is attached to the first elastic contact structure (210) and the second elastic contact structure (310) of the mobile power supply protective shell through the electrical contacts (100) provided at the bottom, so that the law enforcement recorder body (700) and the power replenishment device are electrically connected. A mounting bracket (800) is provided between the law enforcement recorder body (700) and the mounting bracket (800) so that the mounting bracket (800) and the law enforcement recorder body (700) can be detachably connected.

9. The law enforcement instrument of claim 8, wherein, The mounting structure includes a mounting housing (710) disposed on the body of the law enforcement device (700) and a snap-fit ​​component (810) disposed on the wearing bracket (800).

10. The law enforcement instrument of claim 9, wherein, The snap-fit ​​component (810) includes an adjustment structure (811) for adjusting the position and orientation of the wearing bracket (800).

Images