Bulletproof and impact-resistant fire rescue device
By installing deployable rotating and expansion frames on the fire rescue device, combined with water evaporation and rapid discharge mechanisms, the problems of device swaying and insufficient coverage during high-intensity tasks are solved, achieving higher protective effectiveness and operational stability.
Patent Information
- Application Number
- CN202511621580.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-01-02
AI Technical Summary
Existing fire rescue equipment is prone to shaking, tilting, or slipping during high-intensity rescue missions, making it difficult to maintain a protective posture, reducing protective effectiveness, and increasing the risk of injury to workers.
A bulletproof and impact-resistant fire rescue device was designed. By setting an expandable first rotating frame and an extension frame on the fire shield, and using ball wheels, rotating rods and gear mechanisms, a support structure and an extension structure are formed, which enhances the structural rigidity and coverage. The device also achieves water evaporation and heat absorption and rapid discharge through sliding pipes and drainage racks, thereby adjusting the weight and protective performance.
It effectively disperses external impact forces, enhances structural rigidity, expands coverage, reduces temperature, improves impact resistance and mobility, reduces the risk of injury, and enhances the stability and effectiveness of rescue devices.
Smart Images
Figure CN121243682A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of emergency rescue device technology, specifically a bulletproof and impact-resistant fire rescue device. Background Technology
[0002] Fire rescue equipment is a multi-functional protective gear designed specifically for firefighters, emergency rescue personnel, and special operations personnel. It integrates bulletproof, impact-resistant, high-temperature resistant, heat-insulating, and rescue assistance functions. It is mainly used in fire, explosion, collapse, and other extremely dangerous environments, aiming to provide comprehensive personal protection for workers and assist in completing critical rescue missions.
[0003] In practical applications, especially when performing high-intensity rescue missions, rescue devices mainly rely on operators holding the handles of the device for support. When encountering external impact forces, the shield is prone to swaying, tilting, or even slipping out of the hands, making it difficult to maintain the protective posture, significantly reducing the device's protective effectiveness, weakening its ability to continuously protect the operator, and thus increasing the risk of injury during operations.
[0004] Therefore, this invention proposes a bulletproof and impact-resistant fire rescue device to compensate for and improve the shortcomings of the prior art. Summary of the Invention
[0005] In view of the deficiencies of the existing technology, the present invention provides a bulletproof and impact-resistant fire rescue device that can effectively solve the above-mentioned technical problems.
[0006] The technical implementation of this invention is as follows: a bulletproof and impact-resistant fire rescue device, comprising a fire shield, a handle symmetrically and fixedly connected to one side of the fire shield, a plurality of first ball wheels rotatably connected to the lower surface of the fire shield in an arc shape, a connecting pipe penetrating one side of the middle of the fire shield, a water outlet pipe penetrating the other side of the middle of the fire shield, an observation window fixedly connected to the upper surface of the fire shield, and a second rotating rod rotatably connected to both ends of one side of the fire shield. A first rotating frame is symmetrically and fixedly connected to the outer surface of the bottom end of the second rotating rod, and a plurality of second ball wheels are rotatably connected to the bottom end of each of the first rotating frames in an arc shape. A flipping component is symmetrically and rotatably connected to the side of the first rotating frame that is close to each other. A plurality of torsion springs are fixedly sleeved on the inner side of the flipping component that is far away from each other, and the other ends of the torsion springs are fixedly connected to the side of the first rotating frame that is close to each other. When the first rotating frame swings to both sides, it can form a support structure with the sides of the fire shield, thus effectively dispersing the external impact force when facing an impact.
[0007] More preferably, the outer surface of the second rotating rod is fixedly connected to a connecting frame, the upper surface of the first rotating frame is rotatably connected to a first rotating rod, the ends of the connecting frames that are close to each other are rotatably connected to the outer surface of the first rotating rod, the top of the first rotating rod is fixedly connected to a first rotating frame, and one side of the fire shield is symmetrically rotatably connected to a second rotating frame. The ends of the first rotating frames that are close to each other are slidably connected to the top of the second rotating frame on the side that is far apart from each other. When the first rotating frame slides on the surface of the second rotating frame to the side that is far apart from each other, a triangular support is formed between the first rotating frame, the second rotating frame and the first rotating frame, which significantly improves the rigidity and impact resistance of the first rotating frame after it is deployed.
[0008] More preferably, the fire shield has symmetrically sliding expansion frames inside, and each expansion frame has a first rack fixedly connected to its bottom. When the expansion frame is moved to both sides by the first rack, the width of the fire shield can be expanded from the normal state to the maximum state, thereby better covering the operator's torso, shoulders and flanks.
[0009] More preferably, the fire shield is symmetrically fixedly connected to protective shells on both sides, and a third rotating rod is rotatably connected to the inner side of each protective shell. A first gear is fixedly connected to the top of each third rotating rod, and the outer surface of the first gear meshes with one side of the first rack. A rotating wheel is fixedly connected to the bottom of each second rotating rod, and a belt is connected between the outer surface of the rotating wheel and the bottom of the third rotating rod. When the first rotating frame swings, the first rack can automatically drive the expansion frame to unfold.
[0010] More preferably, a sliding pipe is slidably connected between the inner side of the connecting pipe and the outlet pipe. The outer surface of the sliding pipe has multiple square holes that are circumferentially open. A sliding frame is slidably connected to the inner side of the connecting pipe. One side of the top of the sliding frame is fixedly connected to one end of the sliding pipe. When the sliding pipe slides, excess water can be guided into the fire shield through the square holes on the surface of the sliding pipe, so that the water can evaporate and absorb heat inside the fire shield, effectively reducing the surface temperature of the fire shield and improving its fire resistance.
[0011] More preferably, the two ends of one side of the sliding frame are symmetrically fixedly connected with second racks, and the top of the second rotating frame is fixedly connected with a second gear. The outer surfaces of the second gears mesh with the sides of the second racks that are close to each other. When the inner sides of the second gears and the second racks mesh, the sliding tube can move automatically.
[0012] More preferably, the bottom end of the second rotating frame is fixedly connected to a threaded pipe, and a drain rack is slidably connected to the inner side of the bottom of the fire shield. The outer surface of the drain rack has multiple directional grooves that are circularly opened through it. A guide is fixedly connected to the outer surface of the bottom of the drain rack. The two ends of the top of the guide are slidably connected between the outer surfaces of the threaded pipe. The outer surfaces of the threaded pipe and the two ends of the top of the guide are squeezed together. When the drain rack moves downward to reset, the water inside the fire shield will be discharged through the square hole on the outer surface of the drain rack, thereby greatly reducing the overall weight of the fire shield and improving mobility and evacuation speed.
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] 1. When the first rotating frame unfolds to both sides, it can form a support structure with the two sides of the fire shield. Therefore, it can effectively disperse the external impact force when facing an impact, reduce the bending deformation and vibration transmission of the fire shield when subjected to force, and enhance the overall structural rigidity and impact resistance of the fire shield. When the first rotating frame swings, it will drive the first rotating frame to swing synchronously, thereby forming a triangular support for the first rotating frame, which significantly improves the rigidity and impact resistance of the first rotating frame after it is unfolded.
[0015] 2. When the first rotating frame is unfolded, the expansion frame will slide synchronously to both sides, allowing the width of the fire shield to expand from the conventional state to the maximum state. This better covers the operator's torso, shoulders, and flanks, effectively preventing lateral flying debris and blast shock waves from intruding from the edges, significantly improving the protection of vital parts, reducing the risk of injury, and allowing the operator to unfold and retract the expansion frame according to actual needs, thus adapting to the needs of different tasks.
[0016] 3. When the sliding tube slides forward, water can be transported to the interior of the fire shield through the square holes on the surface of the sliding tube. This allows the water to evaporate and absorb heat inside the fire shield, effectively reducing the surface temperature of the fire shield and improving its fire resistance. Furthermore, the water flow into the fire shield increases its overall weight and improves its impact resistance. When the threaded tube is reset and rotated, it causes the drain rack to slide downward. At this time, the water inside the fire shield can be quickly discharged through the square holes on the surface of the drain rack, thereby significantly reducing the overall weight of the fire shield and improving its mobility and evacuation speed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0018] Figure 2 This is a structural diagram of the present invention in use.
[0019] Figure 3 This is a cross-sectional view of the internal structure of the present invention.
[0020] The components in the attached diagram are labeled as follows: 1-Fire shield, 11-Handle, 12-First ball wheel, 13-Connecting pipe, 14-Water outlet pipe, 15-Observation window, 2-First rotating frame, 21-First rotating rod, 211-Second rotating frame, 22-Second rotating rod, 23-Connecting frame, 24-Flipping component, 25-First rotating frame, 251-Second ball wheel, 26-Torsion spring, 3-Expansion frame, 31-First rack, 32-Protective shell, 33-Belt, 331-Rotating wheel, 34-First gear, 35-Third rotating rod, 4-Sliding frame, 41-Second rack, 42-Second gear, 43-Threaded pipe, 44-Guide component, 45-Sliding pipe, 46-Drainage frame. 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] Next, we will combine the appendix Figures 1-3 A specific embodiment of the present invention will be described in detail below.
[0023] A bulletproof and impact-resistant fire rescue device includes a fire shield 1. Handles 11 are symmetrically and fixedly connected to the front side of the fire shield 1 for picking up the fire shield 1. Multiple first ball wheels 12 are rotatably connected to the bottom of the fire shield 1 in an arc shape, assisting the fire shield 1 in sliding. A connecting pipe 13 is continuously connected to the front side of the fire shield 1, and a water outlet pipe 14 is continuously connected to the rear side of the fire shield 1. The connecting pipe 13 and the water outlet pipe 14 are used to transport water. An observation window 15 is fixedly connected to the upper surface of the fire shield 1 for observing the rear side of the fire shield 1.
[0024] As described in the background art, in practical applications, especially when performing high-intensity rescue missions, the rescue device mainly relies on the operator's hands to hold the handle 11 of the device for support. When encountering external impact, the shield is prone to swaying, tilting, or even slipping out of the hands, which makes it difficult to maintain the protective posture, significantly reduces the protective effectiveness of the device, weakens its ability to continuously protect the operator, and thus increases the risk of injury during the operation.
[0025] Reference Appendix Figure 1To address the issue of the shield swaying under external impact, this embodiment employs the following technical solution: Both ends of the front side of the fire shield 1 are rotatably connected to second rotating rods 22. The outer surface of the bottom of the second rotating rods 22 is symmetrically and fixedly connected to first rotating frames 25, which provide external support for the fire shield 1. The bottom of each first rotating frame 25 is rotatably connected to multiple second ball wheels 251 in an arc shape. The first rotating frame 25 drives the second ball wheels 251 to slide synchronously. A flipping component 24 is symmetrically rotatably connected to one end of each first rotating frame 25 that is close to the other. Multiple torsion springs 26 are fixedly connected inside the flipping component 24 on the side furthest from each other. The ends of the torsion springs 26 that are close to each other are fixedly connected to the ends of the first rotating frame 25 that are close to each other. The torsion springs 26 drive the flipping component 24 to reset and move.
[0026] When the operator uses the fire shield 1 and faces a large impact, the operator can use their feet to push the first rotating frame 25 on both sides to make it swing forward. At this time, the first rotating frame 25 will drive the second ball wheel 251 to swing synchronously to the unfolded state, thereby assisting the fire shield 1 to slide. At the same time, when the first rotating frame 25 swings to both sides, it can form a support structure with the two sides of the fire shield 1, effectively dispersing the external impact force, reducing the bending deformation and vibration transmission of the fire shield 1 under force, and significantly enhancing the overall structural rigidity and impact resistance of the fire shield 1.
[0027] When the first rotating frames 25 on both sides drive the flipping parts 24 to swing synchronously, the outer surface of one flipping part 24 is pressed against the outer surface of the other flipping part 24, causing the flipping part 24 to swing. When the flipping part 24 swings, it will rotate the torsion spring 26 to the stored state. As the first rotating frame 25 continues to drive the flipping part 24 to swing, the outer surface of the flipping part 24 is released from the pressure, and the torsion spring 26 in the stored state drives the flipping part 24 to rotate back to the initial position. Through the mutual pressing and reset between the flipping parts 24, the collision of the first rotating frames 25 on both sides during the swinging and unfolding process is effectively avoided, thereby improving the smoothness and stability of the unfolding action.
[0028] When the fire shield 1 needs to be restored to its initial state, the operator only needs to apply a reverse pushing force to the first rotating frame 25 to make it swing back to reset. During this process, the first rotating frame 25 will drive the second ball wheel 251 and the flipping part 24 to swing back to reset synchronously. The flipping part 24 will still squeeze each other during the reset swing, so as to avoid the first rotating frame 25 from getting stuck due to squeezing on the side that is close to each other, making the whole reset process smooth and reliable.
[0029] The outer surface of the top of the second rotating rod 22 is fixedly connected to a connecting frame 23. The upper surface of the first rotating frame 25 is rotatably connected to a first rotating rod 21. The first rotating frame 25 is used to drive the first rotating rod 21 to swing synchronously. The ends of the connecting frames 23 that are close to each other are rotatably connected to the outer surface of the first rotating rod 21. The connecting frame 23 is used to pull the first rotating rod 21. The front side of the fire shield 1 is symmetrically rotatably connected to a second rotating frame 211. The top of the first rotating rod 21 is symmetrically rotatably connected to a first rotating frame 2. The ends of the first rotating frames 2 that are close to each other are slidably connected to the outer surface of the top of the second rotating frame 211.
[0030] When the first rotating frame 25 swings out, it not only drives the first rotating rod 21 to swing synchronously, but also drives the connecting frame 23 to swing synchronously through the synchronous rotation of the second rotating rod 22. During the swinging process, the connecting frame 23 pulls the first rotating rod 21, causing the first rotating rod 21 to further drive the first rotating frame 2 to move synchronously. As the first rotating frame 2 slides, its inner side gradually separates from the outer surface of the top of the second rotating frame 211. Through the sliding cooperation between the first rotating frame 2 and the second rotating frame 211, a stable triangular support structure is formed between the first rotating frame 2, the second rotating frame 211 and the first rotating frame 25 during the unfolding process, thereby significantly improving the structural rigidity and impact resistance of the first rotating frame 25 after unfolding.
[0031] When the first rotating frame 2 needs to be folded up, the operator only needs to swing the first rotating frame 25 back to its original position. At this time, the first rotating frame 25 applies a squeezing force to the ends of the first rotating frame 2 that are far apart through the first rotating rod 21, causing the first rotating frame 2 to slide towards the side that is close to each other. As a result, the inner side of the first rotating frame 2 gradually covers the outer surface of the top of the second rotating frame 211, realizing the storage cooperation between the first rotating frame 2 and the second rotating frame 211.
[0032] When the fire shield 1 is in use and faces the spread of the blast impact, it can only protect the front, while the shoulders and sides of the torso are completely exposed, making it difficult to cover the whole body, thus increasing the probability of injury to rescuers.
[0033] Reference Appendix Figures 1-2To address the issue of fire shield 1's inability to fully cover the body during use, this embodiment employs the following technical solution: An expansion frame 3 is symmetrically and slidably connected to the inner side of the fire shield 1. The expansion frame 3 is used to expand both sides of the fire shield 1. A first rack 31 is fixedly connected to the bottom of each expansion frame 3, and the first rack 31 is used to drive the expansion frame 3 to slide. Protective shells 32 are symmetrically and fixedly connected to both sides of the fire shield 1. A third rotating rod 35 is rotatably connected to the inner side of each protective shell 32. A first gear 34 is fixedly connected to the top of each third rotating rod 35, and the third rotating rod 35 is used to drive the first gear 34 to rotate. The outer surface of the first gear 34 meshes with the rear side of the first rack 31, and the first gear 34 is used to drive the first rack 31 to slide. A rotating wheel 331 is fixedly connected to the bottom end of each second rotating rod 22. A belt 33 is connected between the rotating wheel 331 and the bottom end of the third rotating rod 35, and the rotating wheel 331 is used to drive the third rotating rod 35 to rotate via the belt 33.
[0034] When the operator flips and unfolds the first rotating frame 25 to both sides, the first rotating frame 25 drives the rotating wheel 331 to rotate synchronously via the second rotating rod 22. The rotating wheel 331 drives the third rotating rod 35 to rotate synchronously via the belt 33. Since the diameter of the rotating wheel 331 is larger than the diameter of the third rotating rod 35, one rotation of the rotating wheel 331 can drive the third rotating rod 35 to rotate multiple times. As the third rotating rod 35 rotates inside the protective shell 32, it drives the first gear 34 to rotate synchronously. The first gear 34 and the first... The rear engagement of the rack 31 causes the first rack 31 to drive the expansion frame 3 to slide on the inside of the fire shield 1 to the side away from each other. The sliding expansion frame 3 can expand the width of the fire shield 1 from the normal state to the maximum state, thereby better covering the operator's torso, shoulders and flanks, effectively preventing lateral flying debris and blast shock waves from entering from the edges, significantly improving the protection of vital parts, reducing the risk of injury, and the operator can also unfold and store the expansion frame 3 according to actual needs, thereby adapting to the needs of different tasks.
[0035] When the operator resets and swings the first rotating frame 25, the first rotating frame 25 drives the rotating wheel 331 to rotate in the opposite direction through the second rotating rod 22. The rotating wheel 331 drives the third rotating rod 35 to rotate in the opposite direction synchronously through the belt 33. When the third rotating rod 35 rotates in the opposite direction, it drives the first gear 34 to rotate synchronously. At this time, the first gear 34 meshes with the rear side of the first rack 31, causing the first rack 31 to drive the expansion frame 3 to move towards the side that is closer to each other, so that the expansion frame 3 slides back into the fire shield 1, thereby making the fire shield 1 more flexible when in use.
[0036] When the fire shield 1 is used for fire rescue at a fire scene, it needs to be exposed to the high temperature of the fire scene for a long time, which makes the metal parts inside the fire shield 1 prone to deformation, affecting the structural integrity and thus reducing the protective performance.
[0037] Reference Appendix Figure 1 and Figure 3 To address the issue of reduced protective performance of the fire shield 1 after prolonged use in a fire, this embodiment employs the following technical solution: A sliding pipe 45 is slidably connected between the inner sides of the connecting pipe 13 and the outlet pipe 14. The outer surface of the sliding pipe 45 has multiple square grooves that are circularly circumferentially formed. The sliding pipe 45 is used to block and discharge water flow. A sliding frame 4 is slidably connected inside the connecting pipe 13. The rear end of the top of the sliding frame 4 is fixedly connected to the front end of the sliding pipe 45. The sliding frame 4 is used to drive the sliding pipe 45 to move back and forth. The two ends of the bottom rear side of the sliding frame 4 are symmetrically fixedly connected to a second rack 41. A second gear 42 is fixedly connected to the top of the second rotating frame 211. The second rotating frame 211 is used to drive the second gear 42 to rotate. The outer surface of the second gear 42 meshes with the side of the second rack 41 that is close to each other. The second gear 42 is used to drive the second rack 41 to slide back and forth.
[0038] The bottom of the fire shield 1 is slidably connected to a drain rack 46. The outer surface of the drain rack 46 has multiple square grooves that are circularly opened. The drain rack 46 is used to drain the water inside the fire shield 1. A guide member 44 is fixedly connected to the front side of the outer surface of the drain rack 46. The guide member 44 is used to drive the drain rack 46 to move up and down. The bottom end of the second rotating frame 211 is threadedly connected to a threaded pipe 43. The two sides of the top of the guide member 44 are squeezed and fitted with the outer surface of the threaded pipe 43. The threaded pipe 43 is used to drive the guide member 44 to move up and down.
[0039] When the fire shield 1 is used at the fire scene, the water pipe can be connected to the front of the connecting pipe 13. At this time, the water source passes through the inside of the sliding pipe 45 and sprays out from the rear end of the outlet pipe 14 to extinguish the fire. As the operator unfolds the first rotating frame 25, the second rotating frame 211 will drive the second gear 42 to rotate synchronously. When the second gear 42 rotates, its outer surface will mesh with the side of the second rack 41 that is close to each other, causing the second rack 41 to drive the sliding frame 4 to slide forward. When the sliding frame 4 slides forward, it will drive the sliding pipe 45 to slide synchronously. At this time, the square hole on the outer surface of the sliding pipe 45 is connected to the inside of the fire shield 1. When the water source flows out from the rear end of the outlet pipe 14, the excess water source will flow into the inside of the fire shield 1 through the square hole on the surface of the sliding pipe 45.
[0040] At the same time, when the second rotating frame 211 rotates, it will drive the threaded tube 43 to rotate synchronously. When the threaded tube 43 rotates, its outer surface will squeeze the two sides of the top of the guide member 44, causing the guide member 44 to drive the drain rack 46 to move upward. When the drain rack 46 moves upward on the inner side of the bottom of the fire shield 1, its outer surface can block the bottom of the fire shield 1, thereby preventing the water source inside the fire shield 1 from being discharged. When water is delivered to the inside of the fire shield 1, it can evaporate and absorb heat inside, effectively reducing the surface temperature of the fire shield 1 and improving the fire resistance performance. Furthermore, when the water flows into the inside of the fire shield 1, it can increase the overall weight of the fire shield 1 and improve its impact resistance.
[0041] When the fire shield 1 is no longer in use, the operator resets the first rotating frame 25 by swinging it back. The second rotating frame 211 will drive the second gear 42 to rotate in the opposite direction. When the second gear 42 rotates in the opposite direction, it will cause the second rack 41 to drive the sliding frame 4 to move backward. When the sliding frame 4 moves backward, it will drive the sliding tube 45 to move synchronously. At this time, the outer surface of the sliding tube 45 can seal the inside of the fire shield 1, preventing water from entering the inside of the fire shield 1.
[0042] In addition, when the second rotating frame 211 reverses, it will drive the threaded tube 43 to reverse synchronously. When the threaded tube 43 reverses, its outer surface will squeeze the two sides of the top of the guide member 44, causing the guide member 44 to drive the drain rack 46 to move downward. At this time, the square hole on the outer surface of the drain rack 46 is connected to the bottom of the fire shield 1, and the water inside the fire shield 1 will be quickly discharged through the square hole on the outer surface of the drain rack 46, thereby greatly reducing the overall weight of the fire shield 1 and improving mobility and evacuation speed.
[0043] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.
Claims
1. A bulletproof and impact-resistant fire rescue device, comprising a fire shield (1), wherein a handle (11) is symmetrically and fixedly connected to one side of the fire shield (1), a plurality of first ball wheels (12) are rotatably connected to the lower surface of the fire shield (1) in an arc shape, a connecting pipe (13) is connected through one side of the middle of the fire shield (1), a water outlet pipe (14) is connected through the other side of the middle of the fire shield (1), and an observation window (15) is fixedly connected to the upper surface of the fire shield (1), characterized in that, The fire shield (1) has two ends of one side rotatably connected to a second rotating rod (22). The outer surface of the bottom end of the second rotating rod (22) is symmetrically fixedly connected to a first rotating frame (25). The bottom end of the first rotating frame (25) is rotatably connected to multiple second ball wheels (251) in an arc shape. The side of the first rotating frame (25) that is close to each other is symmetrically rotatably connected to a flipping part (24). The inner side of the flipping part (24) that is far away from each other is fixedly sleeved with multiple torsion springs (26). The other ends of the torsion springs (26) are fixedly connected to the side of the first rotating frame (25) that is close to each other.
2. The bulletproof and impact-resistant fire and rescue device according to claim 1, characterized in that, The outer surface of the second rotating rod (22) is fixedly connected to a connecting frame (23), the upper surface of the first rotating frame (25) is rotatably connected to a first rotating rod (21), the ends of the connecting frames (23) that are close to each other are rotatably connected to the outer surface of the first rotating rod (21), the top end of the first rotating rod (21) is fixedly connected to a first rotating frame (2), one side of the fire shield (1) is symmetrically rotatably connected to a second rotating frame (211), the ends of the first rotating frames (2) that are close to each other are slidably connected to the top side of the second rotating frame (211) that is far apart from each other.
3. The bulletproof and impact-resistant fire and rescue device according to claim 1, characterized in that, The fire shield (1) has an expansion frame (3) symmetrically slidably connected inside, and the bottom of the expansion frame (3) is fixedly connected with a first rack (31).
4. The bulletproof and impact-resistant fire and rescue device according to claim 3, characterized in that, The fire shield (1) is symmetrically fixedly connected to protective shells (32) on both sides. The inner side of each protective shell (32) is rotatably connected to a third rotating rod (35). The top of each third rotating rod (35) is fixedly connected to a first gear (34). The outer surface of the first gear (34) meshes with one side of the first rack (31). The bottom end of each second rotating rod (22) is fixedly connected to a rotating wheel (331). A belt (33) is drivingly connected between the outer surface of the rotating wheel (331) and the bottom end of the third rotating rod (35).
5. The bulletproof and impact-resistant fire and rescue device according to claim 1, characterized in that, A sliding pipe (45) is slidably connected between the inner side of the connecting pipe (13) and the water outlet pipe (14). The outer surface of the sliding pipe (45) has multiple square holes that are circumferentially open. A sliding frame (4) is slidably connected to the inner side of the connecting pipe (13). One side of the top of the sliding frame (4) is fixedly connected to one end of the sliding pipe (45).
6. The bulletproof and impact-resistant fire and rescue device according to claim 5, characterized in that, The sliding frame (4) has two ends of a second rack (41) fixedly connected symmetrically on one side. The top of the second rotating frame (211) is fixedly connected with a second gear (42). The outer surfaces of the second gear (42) mesh with the sides of the second rack (41) that are close to each other.
7. The bulletproof and impact-resistant fire and rescue device according to claim 6, characterized in that, The bottom end of the second rotating frame (211) is fixedly connected to a threaded pipe (43). The inner side of the bottom of the fire shield (1) is slidably connected to a drain rack (46). The outer surface of the drain rack (46) is provided with multiple directional grooves in a ring. The outer surface of the bottom of the drain rack (46) is fixedly connected to a guide (44). The two ends of the top of the guide (44) are slidably connected between the outer surfaces of the threaded pipe (43). The outer surfaces of the threaded pipe (43) are squeezed together with the two ends of the top of the guide (44).