Firefighting apparatus and method of use

Abstract

The present application relates to the technical field of emergency rescue equipment, in particular to a fire-fighting alarm-grabbing device and its use method. The present application aims to solve the problems of existing snake-catching devices, such as difficult positioning at night and simple mechanical clamping that easily causes the snake to resist and leads to the failure of catching. The device comprises a connecting frame, a shell, a connecting rod, a rhombus shell, a grabbing assembly, a dual-light fusion night vision module and a miniature spraying device. The operator holds the device with both hands close to the snake body, uses the dual-light fusion night vision system to accurately position the target, and starts the miniature spraying device to spray the snake body with tranquilizing or repelling agents through the control switch. Then, the operator pulls the hand-pulling block with one hand to drive the clamping rod to close and clamp the snake body to fix the target, releases the hand-pulling block after transferring the target to a safe area, and automatically opens the clamping rod to complete the release under the action of the return spring. The present application has the functions of dual-light accurate detection, non-contact spraying of tranquilizing agents and remote safe grabbing, and is suitable for firefighters to quickly and safely capture and transfer snakes in complex environments.

Description

Technical Field

[0001] This invention relates to the field of emergency rescue equipment technology, specifically to a grabbing device for firefighters and its usage method. Background Technology

[0002] In fire and emergency rescue operations, various unexpected situations are frequently encountered, among which snakes invading residential areas, offices, or public areas are common occurrences. Due to the characteristics of snakes, such as their suddenness, rapid attack speed, and unknown venom, ordinary people and even some rescuers often lack professional handling methods when faced with such situations. Blindly trying to catch them with bare hands can easily lead to bites, injuries, or poisoning accidents. Therefore, it is particularly important to develop a specialized catching device that can safely and efficiently capture and transfer snakes.

[0003] Existing snake-catching tools mainly include traditional snake-catching tongs, long-handled nets, and robotic arms; however, these existing technologies have the following significant drawbacks in practical applications: 1. Traditional snake-catching tongs or long-handled nets mainly rely on manual visual positioning. In complex scenarios such as nighttime, dimly lit corners, or dense vegetation, rescuers have difficulty quickly identifying the exact location and posture of snakes. This forces operators to get close to the target to see it clearly, greatly increasing the time exposed to unknown dangers and thus significantly increasing the risk of being suddenly attacked by snakes.

[0004] 2. Most existing grasping devices are simple mechanical clamping structures, lacking "pre-treatment" functions, resulting in high risk and low efficiency in the grasping process. Most devices cannot intervene in any way before contacting the snake (such as spraying sedatives, lubricants, or repellents). Once the grippers close, the frightened snake will struggle violently, twist, and even spray venom. This violent resistance can easily lead to grip failure (snake slipping) and may also cause injury to the operator due to the snake's counterattack. At the same time, the complicated operation process prolongs the rescue time and cannot meet the needs of rapid response.

[0005] In conclusion, developing a fire-fighting grappling device that integrates night vision detection, non-contact pre-processing, and reliable mechanical grasping to solve the problems of difficult nighttime positioning and high grasping risks is a technical challenge that urgently needs to be addressed in the current fire and rescue field. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a grabbing device for fire emergency response and its usage method. It has advantages such as accurate dual-light fusion detection and positioning in night / low-light environments, non-contact snake pretreatment (spraying sedative / lubricant), and highly reliable mechanical clamping. It solves the problems of traditional equipment's difficulty in quickly detecting targets in dark environments, leading to high exposure risks for rescue personnel, and simple mechanical clamping easily causing violent resistance from the snake, resulting in grabbing failure or personnel injury.

[0007] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a grabbing device for fire emergency response, comprising a connecting frame, a housing, a connecting rod, and a rhomboid shell, wherein the housing is fixedly installed at one end of the connecting frame, the connecting rod is fixedly installed at one end of the housing, and the rhomboid shell is fixedly installed at one end of the connecting rod; It also includes a gripping assembly, which includes a rotating shaft installed inside the rhomboid shell. A groove is formed on the top surface of the rhomboid shell. Two connecting rods are rotatably mounted on the surface of the rotating shaft. One end of each of the two connecting rods is rotatably mounted with a clamping rod extending to the outside of the rhomboid shell. The intersection of the two clamping rods is connected by a pin. Multiple protruding teeth are installed on the ends of the two clamping rods away from the rhomboid shell. An extension rod is installed inside the rhomboid shell. The extension rod passes through the connecting rod and extends into the interior of the shell. A pull block is movably installed inside the connecting frame. The top of the pull block extends into the interior of the shell and a guide rod is fixedly installed at one end. The other end is fixedly connected to the extension rod. A limit plate is fixedly installed inside the shell. A return spring is sleeved on the surface of the guide rod. It also includes a night vision integrated module, which includes an uncooled infrared focal plane detector and a visible light low-light night vision lens fixedly installed on the top surface of the rhomboid shell and near the clamping rod. A dual-light fusion processing chip is fixedly installed inside the shell.

[0008] Preferably, it also includes a micro spraying device, which includes a folding plate fixedly installed between two clamping rods, a pump body fixedly installed on the inner top wall of the housing, a fixing plate fixedly installed inside the housing, a storage cylinder threadedly connected to the groove inside the fixing plate, a suction pipe extending into the storage cylinder fixedly installed at the liquid inlet of the pump body, and multiple spraying nozzles opened on the surface of the folding plate near the end with protruding teeth.

[0009] Preferably, the limiting plate has a through hole adapted to the guide rod, and one end of the guide rod extends through the through hole to the outside of the limiting plate. One end of the reset spring is fixedly connected to the surface of the limiting plate, and the other end is fixedly connected to one end of the pull block. The rotating shaft is slidably connected to the slide groove.

[0010] Preferably, the surface of the housing is provided with a movable groove, and the pull block is slidably connected to the movable groove. A U-shaped frame is installed on the surface of the rotating shaft, and the rotating shaft is movably installed inside the U-shaped frame. One end of the extension rod is fixedly connected to the surface of the U-shaped frame.

[0011] Preferably, the connecting rod, the rhomboid shell, and the two clamping rods are all provided with an installation cavity, and a delivery pipe is fixedly installed inside the installation cavity. One end of the delivery pipe is fixedly connected to the liquid outlet of the pump body, and the other end is connected to the spray nozzle.

[0012] Preferably, a storage battery is fixedly installed inside the housing, and a control switch is fixedly installed on the surface of the housing. The control switch is electrically connected to an uncooled infrared focal plane detector, a visible light low-light night vision lens, and a pump body.

[0013] Preferably, the uncooled infrared focal plane detector and the visible light low-light night vision lens are both fixedly installed on the same horizontal plane on the top of the rhomboid shell, and the uncooled infrared focal plane detector and the visible light low-light night vision lens are arranged side by side. The top surface of the rhomboid shell has through holes adapted to the uncooled infrared focal plane detector and the visible light low-light night vision lens. The outer edges of the uncooled infrared focal plane detector and the visible light low-light night vision lens are respectively embedded in the through holes and are flush with the top surface of the rhomboid shell.

[0014] Preferably, both sets of protruding teeth are a number of rigid columns arranged in an array, and the bottom ends of both sets of rigid columns are fixedly embedded in the end face of the clamping rod away from the rhomboid shell; both sets of rigid columns protrude outward along the extension direction of the clamping rod, and the top surfaces of both sets of rigid columns form a chamfered transition surface with the outer side wall of the clamping rod.

[0015] A method for using a grabbing device for fire emergency response includes the following steps: S1: Hold the housing with both hands, extending the housing, connecting rod and diamond-shaped shell in a straight line, and move the entire device to the vicinity of the snake; S2: Use an uncooled infrared focal plane detector and a visible light low-light night vision lens to acquire the image signal in front, and transmit the signal to the dual light fusion processing chip for display. While keeping the clamping rod in the open state, adjust the grip angle so that the diamond shell is aligned with the snake body. S3: The control switch starts the pump body. Liquid is drawn from the storage cylinder through the suction pipe, enters the installation cavity through the delivery pipe, and is finally sprayed onto the surface of the snake body through the spray nozzle on the folding plate. S4: After spraying is completed, pull the lever inward with one hand to drive the guide rod to slide in the through hole of the limit plate, compress the reset spring, and at the same time push the U-shaped frame to move along the slide groove through the extension rod, drive the rotating shaft to rotate, drive the two connecting rods to rotate around the pin shaft, so that the two clamping rods move closer to each other until the protruding teeth are embedded in the surface of the snake body. S5: Keep the lever in place, continue to hold the shell and move the device to move the snake away from its original position; S6: After transferring the snake to the designated area, release the pull block. Under the elastic force of the return spring, the guide rod drives the extension rod to retract, the U-shaped frame resets, and the rotating shaft rotates in the opposite direction, causing the two clamping rods to open and release the snake.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides a grabbing device for fire emergency response and its method of use, which has the following beneficial effects: 1. This invention utilizes a dual-light fusion detection system consisting of an uncooled infrared focal plane detector and a visible light low-light night vision lens. This system can acquire infrared thermal imaging signals and visible light images of the surrounding environment in real time, and display them after processing by a dual-light fusion processing chip. This structure allows rescuers to accurately locate the snake's position and posture without relying on their naked eyes to search for targets in complex environments such as darkness, dim lighting, or dense vegetation. This effectively avoids situations where rescuers are forced to approach dangerous sources due to poor visibility, thus significantly reducing the risk of rescuers being attacked by snakes when responding to calls at night and solving the problem of difficult nighttime positioning with traditional equipment.

[0017] 2. This invention integrates a micro-spray device with a folding-type spray structure. Before the mechanical clamping action is performed, the pump body can precisely spray liquid (such as sedative, lubricant, or repellent) in the storage cylinder onto the snake's surface through the delivery pipe. This non-contact pretreatment method can calm, lubricate, or repel the snake before it struggles, effectively suppressing its violent resistance and preventing it from slipping or spraying venom. At the same time, the array of raised teeth on the surface of the clamping rod further enhances the gripping friction, ensuring a stable grip even when the snake is struggling. This solves the technical problem that simple mechanical clamping can easily lead to gripping failure and personnel injury.

[0018] 3. This invention constructs a stable lever transmission mechanism through the precise mechanical linkage between the pull block, guide rod, extension rod, U-shaped frame, rotating shaft, connecting rod, pin, and clamping rod. When the operator pulls the pull block, the power is transmitted to the U-shaped frame via the extension rod, which in turn pushes the connecting rod to rotate around the rotating shaft, causing the clamping rod to close quickly. After release, the return spring automatically returns to its original position, causing the clamping rod to open. This ingenious structural design transforms manual operation into reliable mechanical gripping force, and the overall layout is compact, making it easy for firefighters to hold and move with one or two hands. It realizes integrated continuous operation of detection, pre-processing, and gripping, greatly improving the efficiency and safety of firefighters in responding to snake intrusion incidents. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural view of the grabbing device for fire emergency response according to the present invention; Figure 2 This is a bottom-view perspective view of the structure of the grabbing device for fire emergency response according to the present invention; Figure 3 This is a partial sectional perspective view of the grabbing device for fire emergency response of the present invention; Figure 4 This is a cross-sectional view of the structure of the fire-fighting and grabbing device of the present invention; Figure 5 This is a top view of the structure of the fire-fighting and grabbing device of the present invention; Figure 6 This is a front view of the structure of the fire-fighting and grabbing device of the present invention; Figure 7 For the present invention Figure 4 Enlarged view of the structure at point A in the middle.

[0020] In the diagram: 1. Connecting frame; 2. Housing; 3. Connecting rod; 4. Rhomboid shell; 5. Gripping assembly; 51. Rotating shaft; 52. Slide groove; 53. Connecting rod; 54. Pin; 55. Clamping rod; 56. Raised tooth; 57. Extension rod; 58. Hand pull block; 59. Guide rod; 50. Limiting plate; 500. Return spring; 6. Night vision integrated module; 61. Uncooled infrared focal plane detector; 62. Visible light low-light night vision lens; 63. Dual-light fusion processing chip; 7. Miniature spray device; 71. Origami board; 72. Pump body; 73. Fixing plate; 74. Storage cylinder; 75. Suction pipe; 76. Spray nozzle; 8. Storage battery; 9. Control switch. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-7 As shown, a grabbing device for fire emergency response includes a connecting frame 1, a housing 2, a connecting rod 3, and a rhomboid shell 4. The housing 2 is fixedly installed at one end of the connecting frame 1, the connecting rod 3 is fixedly installed at one end of the housing 2, and the rhomboid shell 4 is fixedly installed at one end of the connecting rod 3.

[0023] like Figures 1-7 As shown, the core transmission mechanism of the gripping component 5 is constructed in the linkage between the rhomboid shell 4 and the housing 2: the rotating shaft 51 is installed inside the rhomboid shell 4 and can slide in the top slide groove 52. Its surface is connected to the extension rod 57 through the U-shaped frame. The extension rod 57 extends through the connecting rod 3 into the housing 2 and is fixedly connected to the pull block 58 movably installed in the connecting frame 1. The top of the pull block 58 is provided with a guide rod 59, which passes through the through hole of the limiting plate 50 inside the housing 2 and has a return spring sleeved on its surface. 500, forming a "pull-push" bidirectional transmission path; at the mechanical clamping end, two connecting rods 53 are hinged to the rotating shaft 51, and their outer ends are respectively connected to the clamping rods 55 extending to the outside of the rhomboid shell 4. The intersection of the two clamping rods is pivoted through the pin 54, and the ends are equipped with array-type protruding teeth 56, thus forming a rigid gripping system driven by the hand pull block 58, transmitting power to the rotating shaft 51 through the extension rod 57 and the U-shaped frame, and finally driving the connecting rods 53 to rotate around the pin 54 to realize the opening and closing of the clamping rods 55.

[0024] In this embodiment, when a firefighter pulls the hand-operated block 58 inward within the movable slot, the guide rod 59 overcomes the elastic force of the return spring 500, pushing the extension rod 57 and the U-shaped frame to move along the slide groove 52. This forces the rotating shaft 51 to shift or rotate, thereby driving the connecting rod 53 to rotate around the pin shaft 54, causing the two clamping rods 55 to close quickly and firmly engage the snake body using the protruding teeth 56. After releasing the hand, the return spring 500 releases its elastic potential energy, automatically returning the hand-operated block 58, extension rod 57, and rotating shaft 51 to their original positions, causing the clamping rods to open. This operation not only enables precise long-distance grabbing that can be completed with one hand, effectively avoiding the risk of rescuers coming into close contact with the toxic source, but also ensures rapid reset of the equipment after each operation through the spring reset mechanism, significantly improving the response speed and ease of operation during emergency response.

[0025] like Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the night vision integrated module 6 adopts an integrated and compact design. Its core components, the uncooled infrared focal plane detector 61 and the visible light low-light night vision lens 62, are fixedly mounted side by side on the same horizontal plane on the top of the rhomboid shell 4, and their positions are close to the front working area of ​​the clamping rod 55. In order to adapt to the complex field environment and prevent damage from foreign objects, a precision through hole is opened on the top surface of the rhomboid shell 4, into which the outer edges of the two detection elements are embedded, so that their top surfaces are completely flush with the surface of the rhomboid shell 4, forming a streamlined protective structure without protrusions. In the signal transmission path, the raw image data generated by the two detection elements are directly transmitted to the dual-light fusion processing chip 63 fixed in the inner cavity of the shell 2 through the internal circuit. The chip performs algorithmic fusion and enhancement processing on the infrared thermal imaging data and the visible light low-light data in real time, and finally outputs a clear, high-contrast synthetic image for the operator to view.

[0026] In this embodiment, the uncooled infrared focal plane detector 61 can penetrate darkness, smoke, or vegetation obstruction to accurately capture the heat characteristics emitted by the snake to lock the target location, while the visible light low-light night vision lens 62 provides high-resolution environmental details and texture information; the dual-light fusion processing chip 63 superimposes and fuses the two signals to generate an image that has both thermal imaging positioning capabilities and clear visual details; even in completely dark nights, dense fog, or hidden corners overgrown with weeds, rescuers can find and accurately identify snakes in the first instance, completely eliminating the risk of blind exploration and misjudgment caused by obstructed vision.

[0027] like Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the micro spray device 7 constructs a concealed fluid delivery system: the storage cylinder 74 is embedded in the groove of the fixing plate 73 inside the housing 2 by means of threaded engagement, serving as a liquid storage unit; the pump body 72 is fixed to the inner top wall of the housing 2, and its inlet is inserted into the bottom of the storage cylinder 74 through the suction pipe 75 to draw liquid; the outlet of the pump body 72 is connected to the delivery pipe that passes through the connecting rod 3, the rhomboid shell 4 and the internal mounting cavity of the two clamping rods 55, and the delivery pipe extends along the axis of the device, eventually connecting to the origami plate 71 located between the two clamping rods 55 and near the front end of the protruding tooth 56; the origami plate 71 has multiple spray nozzles 76 on its surface.

[0028] In this embodiment, the pressure generated by the pump body 72 is used to pressurize and deliver the agent (such as sedative, lubricant, or repellent) in the storage cylinder 74 to the origami plate 71 through the delivery pipe, and form a fan-shaped or dotted mist through the spray nozzle 76 to cover the target area of ​​the snake. This achieves a seamless connection between "non-contact pretreatment" and "mechanical grasping": before the clamping rod 55 closes and bites the snake, the unfolding characteristics of the origami plate 71 are used to evenly spray the agent on the snake's body, effectively suppressing the snake's violent struggle, twisting and venom spraying reaction, thereby greatly reducing the risk of slippage due to snake resistance and the probability of personnel injury; at the same time, the fully enclosed pipeline design (installation cavity and delivery pipe) avoids the leakage of the agent from corroding the equipment or polluting the operating environment, ensuring the efficiency and safety of fire-fighting operations.

[0029] In this embodiment, the battery 8, as the core power source, is securely installed at the bottom of the inner cavity or at the center of gravity of the housing 2, providing a continuous and stable power supply to the entire device through internal wiring. The control switch 9 is integrated into a handheld area on the outer surface of the housing 2 for easy operation. Its internal circuits are electrically connected to the uncooled infrared focal plane detector 61, the visible light low-light night vision lens 62, and the pump body 72 in the micro spray device. The control switch 9 not only has a power on / off function, but can also be designed as a multi-position or linkage switch, which can independently or simultaneously trigger the start of the night vision imaging system, the data acquisition of the dual-light fusion processing chip 63, and the liquid spraying action of the pump body 72, thereby realizing centralized one-button control of the entire process of detection, display, spraying, and subsequent mechanical grasping.

[0030] A method for using a grabbing device for fire emergency response includes the following steps: S1: Hold the housing 2 with both hands, so that the housing 2, connecting rod 3 and diamond-shaped housing 4 extend in a straight line, and move the entire device to the vicinity of the snake; S2: Use the uncooled infrared focal plane detector 61 and the visible light low-light night vision lens 62 to obtain the image signal in front, and transmit the signal to the dual light fusion processing chip 63 for display. While keeping the clamping rod 55 in the open state, adjust the gripping angle so that the rhomboid shell 4 is aligned with the snake body. S3: Control switch 9 starts pump body 72. Liquid is drawn from storage cylinder 74 through suction pipe 75, enters installation cavity through delivery pipe, and is finally sprayed onto snake body surface through spray nozzle 76 on folding plate 71. S4: After spraying is completed, pull the lever block 58 inward with one hand to drive the guide rod 59 to slide in the through hole of the limiting plate 50, compress the reset spring 500, and at the same time push the U-shaped frame along the slide groove 52 through the extension rod 57, drive the rotating shaft 51 to rotate, drive the two connecting rods 53 to rotate around the pin shaft 54, so that the two clamping rods 55 are close to each other until the protruding teeth 56 are embedded in the snake body surface; S5: Keep the lever 58 in place, continue to hold the shell 2 and move the device to move the snake away from its original position; S6: After transferring the snake body to the designated area, release the pull block 58. Under the elastic force of the return spring 500, the guide rod 59 drives the extension rod 57 to retract, the U-shaped frame resets, and the rotating shaft 51 rotates in the opposite direction, causing the two clamping rods 55 to open and release the snake body.

[0031] In summary, this fire-fighting emergency grabbing device and its usage method construct a stable support frame by setting up a connecting frame 1, a housing 2, and a connecting rod 3. The extension rod 57 driven by the pull block 58 drives the rotating shaft 51 to cooperate with the clamping rod 55 and the protruding teeth 56 to achieve remote and safe grabbing. Combined with an uncooled infrared focal plane detector 61 and a visible light low-light night vision lens 62, the night recognition capability is enhanced by a dual-light fusion processing chip 63. The device also relies on the origami-style plate 71 and the spray nozzle 76 in the micro spray device 7 to pre-spray the agent to suppress the snake's resistance. Finally, the device is powered by a storage battery 8 and the various components are centrally controlled by a control switch 9, realizing fully automated and highly safe operation from detection and sedation to capture and transfer.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grabbing device for fire emergency response, comprising a connecting frame (1), a housing (2), a connecting rod (3), and a rhomboid shell (4), characterized in that: The housing (2) is fixedly installed at one end of the connecting frame (1), the connecting rod (3) is fixedly installed at one end of the housing (2), and the rhomboid shell (4) is fixedly installed at one end of the connecting rod (3); It also includes a gripping assembly (5), which includes a rotating shaft (51) installed inside the rhomboid shell (4). A groove (52) is provided on the top surface of the rhomboid shell (4). Two connecting rods (53) are rotatably mounted on the surface of the rotating shaft (51). One end of each of the two connecting rods (53) is rotatably mounted with a clamping rod (55) extending to the outside of the rhomboid shell (4). The intersection of the two clamping rods (55) is connected by a pin (54). Multiple clamping rods (55) are mounted on the ends of the two clamping rods (55) away from the rhomboid shell (4). A protruding tooth (56), an extension rod (57) is installed inside the rhomboid shell (4), the extension rod (57) passes through the connecting rod (3) and extends into the interior of the shell (2), a pull block (58) is movably installed inside the connecting frame (1), the top of the pull block (58) extends into the interior of the shell (2) and a guide rod (59) is fixedly installed at one end, and the other end is fixedly connected to the extension rod (57), a limit plate (50) is fixedly installed inside the shell (2), and a return spring (500) is sleeved on the surface of the guide rod (59). It also includes a night vision integrated module (6), which includes an uncooled infrared focal plane detector (61) and a visible light low-light night vision lens (62) fixedly installed at one end of the top surface of the rhomboid shell (4) and near the clamping rod (55), and a dual-light fusion processing chip (63) fixedly installed inside the shell (2).

2. The grabbing device for fire emergency response according to claim 1, characterized in that: It also includes a micro spray device (7), which includes a folding plate (71) fixedly installed between two clamping rods (55), a pump body (72) fixedly installed on the inner top wall of the housing (2), a fixing plate (73) fixedly installed inside the housing (2), a storage cylinder (74) threadedly connected to the groove inside the fixing plate (73), a suction pipe (75) extending into the storage cylinder (74) fixedly installed at the liquid inlet of the pump body (72), and multiple spray nozzles (76) opened on the surface of the folding plate (71) and at one end near the protruding teeth (56).

3. The grabbing device for fire emergency response according to claim 1, characterized in that: The limiting plate (50) has a through hole that matches the guide rod (59) inside, and one end of the guide rod (59) extends through the through hole to the outside of the limiting plate (50). One end of the reset spring (500) is fixedly connected to the surface of the limiting plate (50), and the other end is fixedly connected to one end of the pull block (58). The rotating shaft (51) is slidably connected to the slide groove (52).

4. The grabbing device for fire emergency response according to claim 1, characterized in that: The surface of the housing (2) is provided with a movable groove, and the pull block (58) is slidably connected to the movable groove. The surface of the rotating shaft (51) is equipped with a U-shaped frame, and the rotating shaft (51) is movably installed inside the U-shaped frame. One end of the extension rod (57) is fixedly connected to the surface of the U-shaped frame.

5. A grabbing device for fire emergency response according to claim 2, characterized in that: The connecting rod (3), the rhomboid shell (4) and the two clamping rods (55) are all provided with an installation cavity, and a delivery pipe is fixedly installed inside the installation cavity. One end of the delivery pipe is fixedly connected to the liquid outlet of the pump body (72), and the other end is connected to the spray nozzle (76).

6. A grabbing device for fire emergency response according to claim 2, characterized in that: A battery (8) is fixedly installed inside the housing (2), and a control switch (9) is fixedly installed on the surface of the housing (2). The control switch (9) is electrically connected to an uncooled infrared focal plane detector (61), a visible light low-light night vision lens (62), and a pump body (72).

7. A grabbing device for fire emergency response according to claim 1, characterized in that: The uncooled infrared focal plane detector (61) and the visible light low-light night vision lens (62) are both fixedly installed on the same horizontal plane at the top of the rhomboid shell (4), and the uncooled infrared focal plane detector (61) and the visible light low-light night vision lens (62) are arranged side by side. The top surface of the rhomboid shell (4) is provided with through holes that are compatible with the uncooled infrared focal plane detector (61) and the visible light low-light night vision lens (62). The outer edges of the uncooled infrared focal plane detector (61) and the visible light low-light night vision lens (62) are respectively embedded in the through holes and are flush with the top surface of the rhomboid shell (4).

8. A grabbing device for fire emergency response according to claim 1, characterized in that: Both sets of protruding teeth (56) are a number of rigid columns arranged in an array. The bottom ends of both sets of rigid columns are fixedly embedded in the end face of the clamping rod (55) away from the rhomboid shell (4). Both sets of rigid columns protrude outward along the extension direction of the clamping rod (55), and the top surfaces of both sets of rigid columns form a chamfered transition surface with the outer side wall of the clamping rod (55).

9. A method of using a grabbing device for fire emergency response, based on the grabbing device for fire emergency response described in claims 1-8, characterized in that: Includes the following steps: S1: Hold the housing (2) with both hands, so that the housing (2), connecting rod (3) and rhomboid housing (4) extend in a straight line, and move the whole device to the vicinity of the snake; S2: Use an uncooled infrared focal plane detector (61) and a visible light low-light night vision lens (62) to obtain the image signal in front and transmit the signal to the dual light fusion processing chip (63) for display. While keeping the clamping rod (55) in the open state, adjust the gripping angle so that the rhomboid shell (4) is aligned with the snake body. S3: Control switch (9) starts pump body (72), liquid is sucked from storage cylinder (74) through suction pipe (75), enters installation cavity through delivery pipe, and is finally sprayed onto snake body surface through spray nozzle (76) on folding plate (71); S4: After spraying is completed, pull the handle (58) inward with one hand to drive the guide rod (59) to slide in the through hole of the limiting plate (50), compress the reset spring (500), and at the same time push the U-shaped frame along the slide groove (52) through the extension rod (57), drive the rotating shaft (51) to rotate, drive the two connecting rods (53) to rotate around the pin shaft (54), so that the two clamping rods (55) approach each other until the protruding teeth (56) are embedded in the snake body surface; S5: Keep the lever (58) in place, continue to hold the shell (2) and move the device to move the snake away from its original position; S6: After transferring the snake body to the designated area, release the pull block (58). Under the elastic force of the reset spring (500), the guide rod (59) drives the extension rod (57) to retract, the U-shaped frame resets, the rotating shaft (51) rotates in the opposite direction, causing the two clamping rods (55) to open and release the snake body.

Images