Integrated lighting tear gas defense device and linkage control method

Abstract

This invention discloses an integrated illuminated tear gas defense device and its linkage control method, belonging to the technical field of police non-lethal defense equipment and civilian emergency self-defense equipment. The device includes an integrated flat cylindrical shell, a highly directional lighting module, a dual-compartment independent storage module, a dual-position physical interlock control component, a spray execution module, a high-rate battery, a control chip, status indicator lights, and a front-end window-breaking device. The control component includes a left-right toggle switch and a rear push-button switch, which can stably switch between the left position for lighting duty and the right position for defensive combat, achieving functional interlocking. The lighting module is centrally located, with its light output axis coaxial with the tear gas spray holes on both sides, automatically remaining constantly lit in defensive mode to form an aiming reference; the indicator lights are constantly lit in green for lighting mode and constantly lit in red for tear gas mode, automatically activating standby after 1 minute of inactivity. This invention can be operated entirely with a single thumb, with zero risk of accidental touch, requiring no professional training for accurate use, and combining lighting, optical suppression, precise defense, and emergency obstacle breaching functions, adapting to the emergency response needs of multiple scenarios in police combat and civilian self-defense.

Description

Technical Field

[0001] This invention belongs to the technical field of police non-lethal defensive equipment and civilian emergency self-defense equipment. Specifically, it relates to a flat-cylinder portable integrated lighting and tear gas defense device and its linkage control method that integrates lighting, non-lethal optical suppression, high-pressure tear gas spray, and emergency obstacle breaching and escape. Background Technology

[0002] In frontline police duties, roadside checks, on-site order control, and civilian emergency self-defense scenarios, traditional defensive equipment generally employs a separate configuration of a flashlight and tear gas sprayer. Currently, grassroots police officers generally lack sufficient training and operational knowledge of the equipment. In emergency situations and instances of unlawful attack, users need to complete multiple steps, including equipment switching, grip adjustment, and aiming, resulting in a cumbersome chain of actions. The switch from a single-officer flashlight to a single-officer tear gas sprayer involves a significant time lag of 1-3 seconds, often leaving insufficient time to react in emergencies, easily missing the optimal opportunity for response and self-rescue, and significantly increasing the risk to personal safety.

[0003] Regarding aiming methods, existing single-officer tear gas sprayers generally lack any aiming device. The spray direction relies entirely on the user's training and combat experience. Even with professional training, spray deviation and missing the target are still prone to occur in tense and chaotic combat scenarios, and the hit rate drops significantly when facing moving targets. Although some gun-type tear gas sprayers are equipped with red and green laser dots as aiming references, the diameter of the laser aiming dots is only a few millimeters, making them extremely difficult to identify in bright daylight and easily obscured in light pollution at night. They are also easily lost under combat stress, resulting in a very poor margin for error and making them extremely unfriendly to users with no prior experience. At the same time, the existing aiming structure only has a single aiming function and cannot provide optical deterrence and non-lethal suppression of the target before spraying, resulting in limited tactical control methods.

[0004] In the civilian market, vulnerable groups such as the elderly, children, and women face a higher risk of being harmed when traveling alone at night or in remote environments. However, existing defensive equipment demands extremely high levels of operational skills, psychological resilience, and training from users. Under intense stress and panic, these vulnerable groups are almost unable to perform complex operations or achieve precise aiming, resulting in extremely limited practical effectiveness of the equipment. Furthermore, existing equipment generally employs a single-button trigger mechanism without independent safety locks or functional interlocks, making it prone to accidental triggering during daily use, potentially causing injury to themselves or innocent bystanders. Its limited functionality also means it generally lacks emergency obstacle-breaking capabilities, making it unsuitable for extreme scenarios such as being trapped in a vehicle or escaping a fire. The industry has long lacked an integrated solution that combines professional law enforcement standards, easy civilian operation, and multi-scenario emergency response capabilities. Summary of the Invention

[0005] This invention addresses the technical shortcomings of existing technologies, such as lagging switching of separate equipment, lack of linkage between gear functions, significant defects in the aiming system, poor anti-accidental touch capability, high operating threshold, and limited scene adaptability. It provides an integrated lighting tear gas defense device and linkage control method. Through a dual-gear physical interlock structure, it achieves complete separation of working conditions. Relying on gear linkage, it realizes adaptive switching of light and automatic generation of coaxial planar aiming reference. Combined with intuitive gear status indicator lights and a front-end emergency obstacle breaching structure, it simplifies the operation logic, lowers the usage threshold, improves equipment safety and adaptability to all scenarios, and takes into account both police law enforcement professionalism and civilian self-defense versatility.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An integrated illuminated tear gas defense device includes an integrated flat cylindrical shell, an illumination module, a spray execution module, a reservoir module, control components, a high-rate battery, and a control chip; The integrated flat cylindrical shell has a highly directional lighting module centrally located at the front end, and tear gas spray holes are symmetrically arranged on the left and right sides of the lighting module. Integrated window breaking devices are symmetrically arranged at the corners of the front end of the shell. The control components include a gear shifting paddle and a tail push switch. The gear shifting paddle is located on the side of the housing and is a left-right physical toggle structure. It can only be stably switched between the left limit first position corresponding to the lighting duty mode and the right limit second position corresponding to the defense combat mode, forming a dual-position functional interlock. The top of the housing is equipped with a status indicator light, which is electrically connected to the control chip. In the lighting duty mode, the green light is always on, and in the defense combat mode, the red light is always on. After 1 minute of inactivity, the light will automatically turn off and enter standby mode. The housing has independent left and right tear gas canisters inside, each pre-filled with tear gas agent and connected to the front tear gas spray nozzles. The housing also has a high-rate battery and a control chip arranged in sections to provide power and logic control for the device. When the gear shifting paddle is in the first position, the injection execution module is mechanically locked by hardware, and the injection function is completely disabled. The tail push switch is electrically connected to the lighting module and is used to control the lighting status. When the gear shift lever is in the second position, the spray execution module is unlocked, and the lighting module is automatically kept on through gear linkage control, forming a visual aiming reference coaxial with the tear gas spray axis. The tail push switch is controlled and associated with the spray execution module to drive the tear gas to be sprayed out from the tear gas spray hole.

[0007] Furthermore, the housing surface next to the gear shift lever is marked with lighting mode and tear gas mode respectively, so as to intuitively distinguish the working mode corresponding to the gear shift.

[0008] Furthermore, in the first workstation, the tail push switch realizes lighting control by recognizing different pressing strokes: a light press of the switch realizes multi-level brightness cycle switching of the lighting module from low brightness to medium brightness to high brightness, and a hard press of the switch triggers a high-frequency high-brightness strobe mode for non-lethal optical suppression.

[0009] Furthermore, in the second station, the planar aiming spot formed by the constantly lit illumination module has a diameter of 25-35cm within an effective range of 5-7 meters. The area covered by the spot perfectly matches the area to which the tear gas is sprayed, achieving precise aiming without training, allowing for "point-and-shoot" accuracy.

[0010] Furthermore, the window breaking device is made of tungsten steel or hard alloy with a hardness of not less than HRC55 and a tapered protrusion structure at the edge, which can withstand an impact load of not less than 1000N, and is used for glass breaking and escape in emergency scenarios.

[0011] Furthermore, the layout of the gear shift paddle and the rear push-button switch is adapted to allow the same thumb to complete the entire process of gear shifting and pressing when holding the device with one hand. There is a clear physical positional interval between the shifting and pressing actions, and the injection can only be triggered after completing the shifting-shifting-pressing action sequence, thus eliminating the risk of accidental touch from the perspective of operation logic.

[0012] Furthermore, the integrated flat cylindrical shell has a lightweight structure, made of aviation aluminum alloy or high-strength engineering plastic, with a protection level of not less than IP54 and an overall weight of ≤200g, making it suitable for portable storage and wearing by single police officers.

[0013] A linkage control method for an integrated lighting tear gas defense device, applied to the integrated lighting tear gas defense device according to any one of claims 1-7, includes the following steps: S1, Illumination and Optical Suppression Mode: Hold the device with one hand and move the gear shift lever to the left to the first position of the left limit with your thumb. The spray function is mechanically locked by the hardware, and the status indicator light is always green. Move your thumb to the rear to press the switch. Press the switch lightly to cycle through the illumination brightness. Press the switch hard to trigger a high-frequency strobe, performing regular ambient lighting and non-lethal optical deterrence suppression. S2, Coaxial Aiming Defense Spray Mode: Move the gear shift lever to the right to the second right limit position with your thumb to unlock the spray function. The status indicator light will stay on red, and the lighting module will automatically stay on to form a coaxial visual aiming spot. Move your thumb to the tail and press the switch. Pressing the switch will drive the tear gas spray holes on both sides to spray tear gas synchronously, achieving precise strikes in the area covered by the light spot, which is the strike zone. S3, Emergency Obstacle Breaking and Escape Mode: Hold the device and use the window breaking device at the front of the shell to break the glass and escape in emergency scenarios.

[0014] Furthermore, all operations of the device are completed independently by holding the device with the same thumb in one hand. The entire process is purely physical and mechanical, enabling blind operation and adapting to rapid response in sudden emergency scenarios.

[0015] Compared with the prior art, the technical solution provided by this invention has the following significant advantages: 1. A brand-new operating paradigm of "coaxial beam aiming" has been established, completely solving the industry's aiming pain points. It abandons the traditional aimless, purely manual estimation and low-forgiveness point laser aiming, automatically generating a beam aiming pattern through gear shifting. Within a range of 5-7 meters, the beam diameter is 25-35cm, matching the key striking area of ​​the human face. It maintains high visibility in any lighting environment, achieving "the area within the light is the striking surface." Even users with no prior experience can operate accurately without professional training, fundamentally solving the problems of difficult aiming and low hit rate.

[0016] 2. Zero accidental activation risk is achieved through both structural and operational logic, significantly enhancing safety. A dual-position interlocking structure locks the spray module in lighting mode, completely eliminating the risk of accidental spraying during duty. All operations are completed with the same thumb held in one hand; there is a clear physical shifting action between shifting and pressing, requiring a "shift-shift-press" sequence to trigger spraying. The physical shifting mechanism is clear, with a high tolerance for error and a near-zero failure rate, eliminating the possibility of accidental activation from the operational logic.

[0017] 3. Integrated design completely eliminates equipment switching time lag. Integrating lighting, optical suppression, tear gas spray, and emergency obstacle breaching into one unit, it replaces the traditional separate flashlight and sprayer combination. Police officers do not need to switch equipment by hand. In emergency scenarios, the entire process can be completed with just a series of thumb movements, greatly shortening the emergency response action chain and gaining critical window time for handling emergencies.

[0018] 4. Intuitive power level status indicators for quick identification in stressful scenarios. The top status indicator light shows a solid green light for illumination mode and a solid red light for tear gas mode, allowing users to quickly and intuitively determine the device's operating status. This ensures easy judgment of usage status under normal conditions, avoiding misjudgment of the power level. Furthermore, the device automatically shuts off after one minute of inactivity, reducing energy consumption and extending battery life.

[0019] 5. Expand non-lethal optical suppression capabilities and enrich tactical control layers. In addition to conventional illumination and aiming, non-lethal optical deterrence can be achieved through high-frequency strobe, allowing for preemptive intervention before conflict escalation. This establishes a tiered tactical process of "warning and deterrence first, followed by media disposal," filling the gap in existing equipment that only has a single spray function and lacks preemptive tactical control means.

[0020] 6. Extremely simple operation logic, suitable for all users. Emergency response operations are simplified to three intuitive steps, requiring no professional training or muscle memory. This perfectly addresses the current situation of insufficient training for grassroots police officers, while also meeting the self-defense needs of vulnerable groups such as the elderly and women who lack professional training. This significantly improves the equipment's practical applicability and feasibility for widespread civilian use.

[0021] 7. Multi-scenario and all-condition adaptability, expanding the practical boundaries of equipment. The newly added high-hardness emergency obstacle-breaking structure can cope with extreme scenarios such as being trapped in a vehicle or escaping from a fire. At the same time, it is adapted to various scenarios such as roadside inspections, nighttime inspections, confined space disposal, and civilian nighttime self-defense, realizing the integration of defense, lighting, and escape functions, and comprehensively filling the technical gap in integrated and linked defense devices in the industry. Attached Figure Description

[0022] Figure 1 is a front structural schematic diagram of the integrated lighting tear gas defense device of the present invention; Figure 2 is an isometric structural schematic diagram of the integrated lighting tear gas defense device of the present invention; Figure 3 is a schematic diagram of the side structure and gear shifting direction of the integrated lighting tear gas defense device of the present invention; Figure 4 is a schematic diagram of the front end face structure of the integrated lighting tear gas defense device of the present invention; Figure 5 is a schematic diagram of the one-handed gear switching operation in the lighting duty mode of the present invention; Figure 6 is a schematic diagram of the lighting function control operation of the lighting duty mode of the present invention; Figure 7 is a schematic diagram of the principle of gear position recognition and accidental touch prevention of the device of the present invention; Figure 8 is a schematic diagram of the one-handed grip operation in the defensive combat mode of the present invention; Figure 9 is a schematic diagram of the internal anatomical structure of the integrated lighting tear gas defense device of the present invention. Detailed Implementation

[0023] The integrated illuminated tear gas defense device proposed in this invention includes an integrated flat cylindrical shell 1, a highly directional lighting module 2 that combines illumination aiming and optical suppression functions, a high-pressure jet execution module, a dual-compartment independent storage module, a dual-gear physical interlock control component, a high-rate battery 12, a control chip 13, a status indicator light 7, and a front-end integrated window-breaking device 4. The integrated flat cylindrical shell 1 has a highly directional lighting module 2 centrally located at its front end. Tear gas spray nozzles 3 are symmetrically arranged on the left and right sides of the lighting module 2. Integrated window-breaking devices 4 are symmetrically arranged at the corners of the front end of the shell 1. The control components include a gear shift lever 5 and a rear push-button switch 6. The gear shift lever 5 is located on the side of the shell 1 and is a left-right physical toggle structure, capable of stable switching only between the left limit position (first position) corresponding to the lighting duty mode and the right limit position (second position) corresponding to the defensive combat mode, forming a dual-position interlock. A status indicator light 7 is located on the top of the shell 1 and is electrically connected to the control chip 13. In the lighting duty mode, the green light is constantly on; in the defensive combat mode, the red light is constantly on. After one minute of inactivity, the light automatically turns off and enters standby mode. The shell 1 has two independent tear gas cartridge compartments 10, each pre-filled with tear gas 11, which corresponds to and communicates with the front tear gas spray nozzles 3. High-rate batteries 12 are partitioned inside the shell 1. Together with control chip 13, it provides power and logic control for the device; When the gear shift lever 5 is in the first position, the spraying execution module is mechanically locked, and the spraying function is completely disabled. The tail push switch 6 is electrically connected to the lighting module 2 to control the lighting status. When the gear shift lever 5 is in the second position, the spraying execution module is unlocked, and the lighting module 2 is automatically kept on through gear linkage control, forming a visual aiming reference coaxial with the spray axis of the tear gas 11. The tail push switch 6 is controlled and connected to the spraying execution module to drive the tear gas 11 to be sprayed from the tear gas spray hole 3.

[0024] Furthermore, on the surface of the housing 1 next to the gear shift lever 5, there are respectively set illumination gear markings 8 and tear gas gear markings 9 to intuitively distinguish the working modes corresponding to gear shifting, so that users can quickly identify the gear even in blind operation.

[0025] Furthermore, in the first workstation, the tail-end push switch 6 realizes lighting control by recognizing different pressing strokes: a light press of the switch realizes the multi-level brightness cycle switching of the lighting module 2 from low brightness to medium brightness to high brightness, and a hard press of the switch triggers a high-frequency high-brightness strobe mode for non-lethal optical suppression, which can form a pre-emptive deterrent before the conflict escalates and reduce the intensity of confrontation.

[0026] Furthermore, in the second workstation, the planar aiming spot formed by the constantly lit illumination module 2 has a diameter of 25-35cm within an effective range of 5-7 meters. The area covered by the spot perfectly matches the spraying area of ​​the tear gas 11, achieving precise aiming without training, allowing even novice users to operate accurately without professional training.

[0027] Furthermore, the window breaking device 4 is made of tungsten steel or hard alloy with a hardness of not less than HRC55 and a tapered protrusion structure on the edge, which can withstand an impact load of not less than 1000N. It is used for glass breaking and escape in emergency scenarios to deal with extreme scenarios such as being trapped in a vehicle or escaping from a fire.

[0028] Furthermore, the layout of the gear shift paddle 5 and the rear push-button switch 6 is adapted to allow the same thumb to complete the entire process of gear shifting and pressing triggering when holding the device with one hand. There is a clear physical positional interval between the shifting action and the pressing action. The injection can only be triggered after completing the action sequence of "shifting gear - shifting - pressing". This eliminates the risk of accidental touch from the perspective of operation logic. The structure of the physical shifting gear is clear, with a high fault tolerance rate and an error rate of almost 0.

[0029] Furthermore, the integrated flat cylindrical shell 1 is a lightweight structure made of aviation aluminum alloy or high-strength engineering plastic, with a matte anti-slip surface, a protection level of not less than IP54, and an overall weight of ≤200g. It is suitable for portable storage and wearing as a single police equipment and can cope with harsh outdoor environments such as rain, humidity, and dust.

[0030] The present invention also provides a linkage control method for an integrated lighting tear gas defense device, applied to the above-mentioned device, comprising the following steps: S1, Illumination and Optical Suppression Mode: With one hand holding the device, the thumb moves the gear shift lever 5 to the left to the first position of the left limit, the spray function is mechanically locked by hardware, and the status indicator 7 is always green; the thumb moves to the rear to press the switch 6, the light press of the switch cycles through the illumination brightness, the hard press of the switch triggers the high-frequency strobe, and performs normal ambient lighting and non-lethal optical deterrence suppression. S2, Coaxial Aiming Defense Spray Mode: Move the gear shift lever 5 to the right to the second right limit position with your thumb. The spray function is unlocked, the status indicator 7 is constantly red, and the lighting module 2 is automatically constantly lit to form a coaxial visual aiming spot. Move your thumb to the tail to press the switch 6. Pressing the switch will drive the tear gas spray holes 3 on both sides to spray tear gas 11 simultaneously, achieving precise strikes in the area covered by the light spot, which is the strike zone. S3, Emergency Obstacle Breaking and Escape Mode: Hold the device and use the window breaking device 4 at the front end of the housing 1 to impact the glass, thus completing the glass obstacle breaking and emergency escape in emergency scenarios.

[0031] Furthermore, all operations of the method are independently completed by the same thumb holding the device with one hand, using pure physical mechanical control throughout, enabling blind operation and adapting to rapid response in sudden emergency scenarios.

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] As shown in Figures 1-9, the integrated lighting tear gas defense device of the present invention includes an integrated flat cylindrical shell 1 in the shape of a flat cylinder, a highly directional lighting module 2, a tear gas spray hole 3, a window breaking device 4, a gear shifting lever 5, a tail push switch 6, a status indicator light 7, a lighting gear mark 8, a tear gas gear mark 9, a tear gas cartridge 10, a tear gas agent 11, a high-rate battery 12, a control chip 13, and a spray execution module.

[0034] The integrated flat cylindrical shell 1 has a high-directional lighting module 2 (high-directional LED / lamp head) centrally located at the front end. Tear gas spray holes 3 are symmetrically arranged on the left and right sides of the lighting module 2. The left and right corners of the front end of the shell 1 are symmetrically integrated with an integrated window-breaking device 4. The side of the shell 1 is equipped with a gear shift lever 5. The surface of the shell next to the lever is respectively marked with lighting gear 8 and tear gas gear 9. The top of the shell 1 is equipped with a status indicator light 7, and the rear is equipped with a rear push-button switch 6. The interior of the shell 1 is divided into left and right independent tear gas cartridge compartments 10. The tear gas cartridge compartments 10 are pre-filled with tear gas 11, which are connected to the front tear gas spray holes 3 one by one. The shell 1 also contains a high-pressure spray execution module, a high-rate battery 12, and a control chip 13. Each module is independently partitioned and does not interfere with each other, ensuring the structural stability and operational reliability of the device for long-term use.

[0035] The device adopts a vertical, overhand grip. The flat, integrated cylindrical shell 1 fits naturally to the hand. When the user holds the device with one hand, the thumb naturally rests on the position of the gear shift lever 5. All operations of the device—including gear shifting and pressing to trigger—are completed independently by the same thumb without the need to switch hands, making it suitable for blind operation in emergency scenarios.

[0036] The gear shift lever 5 is a left-right physical toggle structure, locked into the limiting groove on the side of the housing 1. It can only stably stay in the first left limit position corresponding to the lighting duty mode and the second right limit position corresponding to the defensive combat mode, without intermediate transition positions, forming a stable position holding and functional separation. This achieves mutual exclusion and isolation of the lighting and spray functions under the two core operating conditions, avoiding safety risks caused by confusion of operating conditions. The gear shift lever 5 has a gear travel of 3-5mm, moderate switching damping, and extremely high blind operation recognition. Both left and right gears have physical positioning grooves to prevent accidental slippage during carrying or use. The physical toggle switching structure has clear gear positions, high fault tolerance, and an error rate of almost 0. The rear push switch 6 uses a spring-loaded silicone button with an actuation force of 5-8N. It has no delay in response when pressed and immediately resets when released.

[0037] As shown in Figures 5 and 6, when the user moves the gear shift lever 5 to the left to the first left limit position with their thumb, the device enters the lighting operation mode. In this state, the spraying execution module is mechanically locked by hardware, and the spraying function is completely disabled, structurally eliminating the risk of accidental spraying; the status indicator light 7 is constantly green, and automatically turns off after about 1 minute of inactivity, entering standby mode; the thumb moves from the gear shift lever 5 to the rear push switch 6, and a light press of the switch cycles through multiple brightness levels of the lighting module 2, from low to medium to high. A heavy press of the switch triggers a high-frequency, high-brightness strobe mode. In the high-frequency strobe mode, the lighting module 2 produces a strong, intermittent flashing light effect, which can temporarily visually interfere with and psychologically deter the target object, achieving non-lethal optical suppression. This serves as a preliminary tactical control measure before the use of the spraying medium, reducing the intensity of direct confrontation.

[0038] As shown in Figure 8, when the user moves the gear shift lever 5 to the right to the second right limit position with their thumb, the device enters the defensive combat mode. In this state, the locking structure is released, the spray execution module enters standby mode, and the spray function is unlocked; the status indicator 7 is constantly red, indicating that the tear gas function is activated, prompting the user that the device has entered combat mode; at the same time, the gear shifting action directly triggers the self-locking conduction of the lighting circuit through hardware mechanical linkage, the lighting module 2 automatically turns on and remains constantly lit, producing a planar lighting spot, which serves as the aiming point and remains constantly lit, the point of which is the attack range, achieving the aiming effect of "point and shoot".

[0039] The light output axis of the highly directional illumination module 2 is coaxially aligned with the media spray axis of the dual tear gas spray nozzles 3. At a typical encounter distance of 5-7 meters, the area covered by the planar illumination spot, with a diameter of 25-35 cm, corresponds one-to-one with the area targeted by the tear gas 11 spray, forming a coaxial visual aiming reference. For users with no prior experience, simply seeing the light spot covering the target is enough to confirm the accurate attack position, eliminating the need for deliberate aiming and completely freeing them from reliance on professional training. In this state, moving the thumb from the gear shift lever 5 to the rear push-button switch 6 activates the spray execution module, causing the dual tear gas spray nozzles 3 to fire simultaneously. Two volleys of tear gas 11 are fired at once, with the planar illumination spot ensuring accurate aiming and the simultaneous firing guaranteeing a hit, significantly improving the hit rate in emergency situations.

[0040] The integrated flat cylindrical shell 1 contains two completely independent and unconnected tear gas canisters 10, each capable of being pre-loaded with different types of tear gas 11. It allows for the selection of either gel-type or mist-type spray media, enabling free combinations of dual-gel, dual-mist, or single-sided gel plus single-sided mist spray media. Gel-type spray media are primarily intended for police departments, offering excellent adhesion and flow properties. After adhering to the facial mucosa, it remains for a long time, continuously suppressing the target's behavior, with controllable diffusion and no secondary injuries. Mist-type spray media is the preferred choice for the civilian market, boasting high dispersibility and rapid diffusion, forming a regional aerosol coverage in a very short time to quickly curb the attacker's behavior and buy time for vulnerable groups to self-rescue and call for help.

[0041] The integrated flat cylindrical shell 1 is made of lightweight, high-strength, and corrosion-resistant aerospace aluminum alloy. It is a flat, elongated cylindrical shape, with a length of 140-160mm, a width of 30-40mm, a thickness of 18-25mm, and an overall weight of ≤200g. The surface has a matte, non-slip textured finish, with no sharp edges or protrusions. It is compatible with the standard quick-release holster on a police officer's belt and can also be easily placed in a jeans pocket or a small bag, meeting daily portability and storage needs. It adopts a buckle + ultrasonic welding sealing structure, achieving an IP54 protection rating, and can withstand harsh outdoor environments such as rain, humidity, and dust.

[0042] The high-directivity lighting module 2 uses high-power, high-directivity LED beads with a working voltage of 3.7V, a beam scattering angle of ≤8°, and a spot diameter that is stable at 25-35cm within a range of 5-7 meters, completely covering the spray attack area; the high-rate battery 12 is powered by one 18650 rechargeable lithium battery, providing enough power for 8 hours of continuous high-intensity lighting and more than 30 days of intermittent lighting. The battery compartment is equipped with anti-reverse connection springs and short-circuit protection structures to avoid safety hazards.

[0043] The integrated window breaker 4 is made of tungsten steel, with a non-slip surface on the protrusion and a tapered protrusion structure on the edge. It has a hardness of up to HRC58 and can withstand impact loads of more than 1200N. In an emergency, it can quickly shatter tempered glass in cars or ordinary building glass to achieve emergency escape.

[0044] The assembly process of this device strictly follows modular standards: first, the high-directional lighting module 2, tear gas spray nozzle 3, and window-breaking device 4 are fixed to the positioning groove of the integrated flat cylindrical shell 1 at the front end; then, the spray execution module, tear gas cartridge 10, high-rate battery 12, and control chip 13 are installed in sequence; after connecting the control circuit and status indicator light 7, the integrated flat cylindrical shell 1 is sealed by ultrasonic welding; finally, the gear shifting lever 5 and the tail push switch 6 are installed. The finished product must undergo multiple rigorous performance tests: 5-7 meter range spray accuracy test, continuous spray for 3 seconds without clogging test, 1.5 meter free drop without damage test, high and low temperature environment adaptability test from -10℃ to 50℃, 10,000 gear shifting without failure test, window-breaking device impact load test, lighting function reliability test, and indicator light function stability test, to ensure that the device can work stably, reliably, and efficiently in police combat enforcement, civilian emergency self-defense, and extreme escape scenarios.

[0045] The linkage control method described in this invention is implemented as follows: With the upright, forward-hand grip device, the thumb moves to the left to enter the first position (lighting duty mode), the spray function is hardware locked, the status indicator 7 is constantly green, the thumb moves to the tail and presses the switch 6, a light press cycles the dimming, a hard press triggers a strobe, used for duty, search, warning, and non-lethal optical suppression; the thumb moves to the right to enter the second position (defense combat mode), the status indicator 7 is constantly red, the lighting module 2 automatically stays on to form a planar aiming light spot, the spray function is unlocked, the thumb moves to the tail and presses the switch 6, pressing fires two rounds simultaneously, achieving aiming and spraying of the light spot; in emergency scenarios, the grip device uses the front window-breaking device 4 to quickly impact the glass to complete obstacle clearance and escape.

[0046] Typical handling scenario example 1: During routine patrols and checks, police officers may encounter unexpected situations. When checking the identification of suspicious individuals, the device is held upright with one hand, the thumb resting naturally on the gear shift lever 5. Initially, the gear shift lever 5 is in the first position on the left, and the device is in illumination mode. The spraying function is hardware locked, eliminating the risk of accidental spraying during routine checks. The status indicator light 7 remains constantly green. Move the thumb to the tail and press the switch 6, adjusting the brightness to a suitable level. Use the illumination to check the other party's identification and verify their identity.

[0047] When a person being questioned suddenly exhibits unusual behavior, the police officer, without switching hands or equipment, moves their thumb back to the gear shift lever 5 and quickly shifts it to the second position to the right. At the instant of gear shifting, the device automatically activates the lighting module 2, which remains constantly lit, and the area-shaped aiming spot is immediately projected onto the target area. The status indicator light 7 switches to a constant red light. When it is confirmed that action is necessary, the thumb moves from the gear shift lever 5 to the rear push-button switch 6 and is quickly pressed. Both tear gas spray nozzles 3 fire simultaneously, completing precise suppression. The entire procedure is performed with a single hand, using only the thumb, without any hand switching or equipment changes, ensuring a seamless and zero-risk operation.

[0048] Typical handling scenario example two: Traffic police encountered resistance from inside a vehicle during a nighttime nighttime patrol. During a nighttime roadside check for drunk driving, the initial position of the gear shift paddle 5 was in the first position on the left, the device was in lighting duty mode, the injection function was hardware locked, and the status indicator 7 was constantly green. The thumb moved to the rear and pressed the switch 6 to lightly switch the brightness, completing the routine verification of the vehicle's interior and the driver's documents.

[0049] When the driver refuses to cooperate and locks the doors and windows, the thumb moves back to the gear shift paddle 5 and quickly moves it to the second position to the right. At the moment of gear shift, the device automatically activates the lighting module 2, which remains constantly lit, and the planar aiming spot is immediately projected onto the target area. The status indicator 7 switches to a constant red light. Next, the window-breaking device 4 at the front end of the integrated flat cylindrical housing 1 physically breaks the window glass. After breaking the barrier, there is no need to re-aim; the thumb moves from the gear shift paddle 5 to the rear push-button switch 6, pressing it to trigger the simultaneous firing of the tear gas spray nozzles 3 on both sides.

[0050] The device is pre-loaded with a combination of single-sided gel and single-sided mist: the mist-type medium rapidly diffuses and spreads within the enclosed space of the vehicle, forming a regional aerosol coverage that strongly irritates the respiratory tract of the occupants, disrupting their physiological basis for sustained resistance; the gel-type medium, guided by the aiming of the planar light spot, precisely adheres to the driver's facial mucosa, exhibiting strong flowability and long retention time, thus obstructing their vision, providing continuous sensory stimulation, and rapidly causing them to lose their ability to resist. The mist-type full-area suppression and the gel's precise point control work together to achieve coordinated strikes, efficiently completing law enforcement operations.

[0051] Typical Scenario Example 3: This civilian nighttime emergency self-defense device is designed for solo nighttime use by women. It comes pre-loaded with a dual-mist diffusion medium. Initially in the first position, the spray function is locked, and the status indicator 7 is a solid green light. Illumination can be controlled via the rear push-button switch 6 for nighttime walking illumination. When faced with a tailgating or face-to-face attack, the user requires no complicated operation. Holding the device with one hand, the user quickly moves the shift lever 5 to the right to the second position. The device automatically illuminates, forming a planar aiming spot, and the status indicator 7 turns a solid red light. The user simply aims the spot at the attacker's upper body, moves their thumb to the rear push-button switch 6, and presses it to trigger the dual-mist spray, quickly covering the target area and temporarily stopping the attacker's assault. This provides crucial time for the user to escape danger and call for help or an alarm. No professional training is required; the user can quickly learn to use it in a stressful situation, effectively increasing the success rate of self-defense.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An integrated illuminated tear gas defense device, comprising an integrated flat cylindrical shell, an illumination module, a spray execution module, a reservoir module, control components, a high-rate battery, and a control chip, characterized in that: The integrated flat cylindrical shell has a highly directional lighting module centrally located at the front end, and tear gas spray holes are symmetrically arranged on the left and right sides of the lighting module. Integrated window breaking devices are symmetrically arranged at the corners of the front end of the shell. The control components include a gear shifting paddle and a tail push switch. The gear shifting paddle is located on the side of the housing and is a left-right physical toggle structure. It can only be stably switched between the left limit first position corresponding to the lighting duty mode and the right limit second position corresponding to the defense combat mode, forming a dual-position functional interlock. The top of the housing is equipped with a status indicator light, which is electrically connected to the control chip. In the lighting duty mode, the green light is always on, and in the defense combat mode, the red light is always on. After 1 minute of inactivity, the light will automatically turn off and enter standby mode. The housing has independent left and right tear gas canisters inside, each pre-filled with tear gas agent and connected to the front tear gas spray nozzles. The housing also has a high-rate battery and a control chip arranged in sections to provide power and logic control for the device. When the gear shifting paddle is in the first position, the injection execution module is mechanically locked by hardware, and the injection function is completely disabled. The tail push switch is electrically connected to the lighting module and is used to control the lighting status. When the gear shift lever is in the second position, the spray execution module is unlocked, and the lighting module is automatically kept on through gear linkage control, forming a visual aiming reference coaxial with the tear gas spray axis. The tail push switch is controlled and associated with the spray execution module to drive the tear gas to be sprayed out from the tear gas spray hole.

2. The integrated illuminated tear gas defense device according to claim 1, characterized in that, The housing surface next to the gear shift lever is marked with lighting mode and tear gas mode respectively, which can be used to intuitively distinguish the working mode corresponding to the gear shift.

3. The integrated illuminated tear gas defense device according to claim 1, characterized in that, In the first workstation, the tail push switch realizes lighting control by recognizing different pressing strokes: a light press of the switch realizes multi-level brightness cycle switching of the lighting module from low brightness to medium brightness to high brightness, and a hard press of the switch triggers a high-frequency high-brightness strobe mode for non-lethal optical suppression.

4. The integrated illuminated tear gas defense device according to claim 1, characterized in that, In the second station, the planar aiming spot formed by the constantly lit illumination module has a diameter of 25-35cm within an effective range of 5-7 meters. The area covered by the spot perfectly matches the area to be hit by the tear gas spray, achieving precise aiming without training by "pointing and hitting".

5. The integrated illuminated tear gas defense device according to claim 1, characterized in that, The window breaking device is made of tungsten steel or hard alloy with a hardness of not less than HRC55. It has a conical protrusion structure at the edge and can withstand an impact load of not less than 1000N. It is used for glass breaking and escape in emergency scenarios.

6. The integrated illuminated tear gas defense device according to claim 1, characterized in that, The layout of the gear shift paddle and the rear push-button switch is adapted to allow the same thumb to complete the entire process of gear shifting and pressing when holding the device with one hand. There is a clear physical interval between the shifting and pressing actions. The injection can only be triggered after the shifting-shifting-pressing action sequence is completed, thus eliminating the risk of accidental touch from the perspective of operation logic.

7. The integrated illuminated tear gas defense device according to claim 1, characterized in that, The integrated flat cylindrical shell is a lightweight structure made of aerospace aluminum alloy or high-strength engineering plastic, with a protection level of not less than IP54 and an overall weight of ≤200g, making it suitable for portable storage and wearing by single police officers.

8. A linkage control method for an integrated lighting tear gas defense device, characterized in that, The integrated illuminated tear gas defense device according to any one of claims 1-7 comprises the following steps: S1, Illumination and Optical Suppression Mode: Hold the device with one hand and move the gear shift lever to the left to the first position of the left limit with your thumb. The spray function is mechanically locked by the hardware, and the status indicator light is always green. Move your thumb to the rear to press the switch. Press the switch lightly to cycle through the illumination brightness. Press the switch hard to trigger a high-frequency strobe, performing regular ambient lighting and non-lethal optical deterrence suppression. S2, Coaxial Aiming Defense Spray Mode: Move the gear shift lever to the right to the second right limit position with your thumb to unlock the spray function. The status indicator light will stay on red, and the lighting module will automatically stay on to form a coaxial visual aiming spot. Move your thumb to the tail and press the switch. Pressing the switch will drive the tear gas spray holes on both sides to spray tear gas synchronously, achieving precise strikes in the area covered by the light spot, which is the strike zone. S3, Emergency Obstacle Breaking and Escape Mode: Hold the device and use the window breaking device at the front of the shell to break the glass and escape in emergency scenarios.

9. The linkage control method according to claim 8, characterized in that, All operations of the device are completed independently by holding the device with one thumb. The entire process is purely physical and mechanical, enabling blind operation and adapting to rapid response in sudden emergency scenarios.

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