An embedded structure of a multi-sensor fire-fighting emergency navigation device
By installing an infrared detector and millimeter-wave radar inside the fire helmet and using a stepper motor to achieve rotation, the problems of inconvenience and blind spots of existing equipment are solved, enabling all-round detection and convenient use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI FIRE RES INST OF MEM
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-31
AI Technical Summary
Existing infrared imaging equipment and millimeter-wave radar have inconveniences in the field of firefighting. Handheld devices occupy both hands, are easily damaged when installed, have a fixed field of view and cannot detect in all directions, have blind spots, and lack an integrated helmet design.
By installing an infrared detector and millimeter-wave radar inside the fire helmet, and using a stepper motor to drive the equipment to rotate, an integrated design is achieved. A precision snap-fit structure ensures stable installation and quick disassembly of the equipment.
It achieves stable installation of the equipment, frees up hands, avoids damage, and can cover the fire scene in all directions, improving scanning efficiency. It also solves the problems of single field of view and blind spots of traditional devices, and improves ease of use.
Smart Images

Figure CN224572287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection technology, and more specifically, to an embedding structure for a multi-sensor fire emergency navigation device. Background Technology
[0002] In the field of firefighting, infrared imaging equipment and millimeter-wave radar are key technologies for dealing with dense smoke environments in fire scenes. Infrared imaging equipment, based on the thermal radiation characteristics of objects, converts infrared signals into visual images through photoelectric detectors. It can identify temperature differences in dense smoke, assisting firefighters in locating fire sources, searching for trapped personnel, and determining escape routes. Studies show that using this equipment in hot smoke environments can shorten search and rescue time by 80%. Millimeter-wave radar operates in the millimeter-wave frequency band, combining the advantages of microwave and photoelectric radar. It can stably detect target distance, speed, and other information in high-temperature smoke. Its small size and strong anti-interference capabilities allow it to accurately count the number and location of people indoors. Intelligent monitoring systems based on this technology can transmit data such as personnel trajectories and fire location in real time to terminals through radar detection combined with smoke and temperature sensing, providing precise information support for rescue operations.
[0003] Existing infrared imaging equipment is mostly handheld, which requires both hands to use, or is installed too high and is easily damaged by collision. It also has parallax with the human eye, which affects observation. Millimeter-wave radar often lacks helmet-integrated design, making it inconvenient to use. Moreover, most devices have a fixed viewing angle and cannot achieve 180-degree rotation detection, making it difficult to cover all directions of complex fire scenes and resulting in a large number of detection blind spots. Utility Model Content
[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of this utility model provide an embedded structure for a multi-sensor fire emergency navigation device. This structure allows for the integration of a helmet with millimeter-wave and infrared devices through a quick snap-fit design. Furthermore, by rotating the two symmetrical modules, detection can be performed in different directions during rotation, thus solving the problems existing in the prior art.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an embedded structure for a multi-sensor fire emergency navigation device, including a fire helmet, a snap-fit panel is snapped into the inside of the fire helmet, an adjusting cylinder is fixedly installed on the side of the snap-fit panel, an infrared detector head is movably installed on the top of the snap-fit panel, stepper motors are symmetrically arranged on the adjusting cylinder, the top of the stepper motors is fixedly connected to the bottom of the fire helmet, and a millimeter-wave radar is movably installed on the bottom of the snap-fit panel.
[0006] The fire helmet has symmetrical snap-fit cavities on both sides, and each snap-fit cavity has a limiting side opening on both sides. A snap-fit groove is formed between the symmetrical snap-fit cavities, and each snap-fit groove has a symmetrical side opening and an internal opening on both sides.
[0007] The locking panel has locking pins fixedly installed on both bottom sides. A connecting block is fixedly connected to the middle of the locking panel. A rod A is fixedly installed at the bottom of the infrared detector. A bevel tooth A is fixedly installed at the bottom of the rod A. The middle circumference of the rod A is movably sleeved with the top of the connecting block. A rod C is movably sleeved at the bottom of the connecting block. A bevel tooth C is fixedly installed at the top of the rod C. The bottom of the bevel tooth C passes through the connecting block and is fixedly connected to the millimeter-wave radar. A bevel tooth E is meshed with the side of the bevel tooth C and the side of the bevel tooth A. A bevel tooth B is fixedly installed on the side of the bevel tooth E away from the bevel tooth C. A side plate is movably sleeved on the outer wall of the bevel tooth B. The top of the side plate is fixedly connected to the bottom of the side near the connecting block. A bevel tooth B is fixedly installed on the outer wall of the end of the rod B away from the bevel tooth E. A bevel tooth F is meshed with the bottom of the bevel tooth B. The bottom of the bevel tooth F is movably connected to the top of the stepper motor through a rod D.
[0008] The locking pin has a fixed connection port at its top, a storage cavity inside, and partition cavities on both sides of the bottom of the storage cavity. A piston A is movably sleeved inside the partition cavity. An outer cylinder is fixedly installed on the side of piston A away from the storage cavity. A rod F is fixedly installed inside the outer cylinder. A spring A is wound around the outer wall of rod F. A piston B is movably sleeved on the outer wall of rod F. A movable rod is fixedly installed on the side of piston B away from rod F. The interiors of piston B and movable rod are movably sleeved with the outer wall of rod F.
[0009] The adjusting cylinder has a piston C movably fitted inside, a rod G fixedly connected to the top of the piston C, a spring B movably fitted to the outer wall of the rod G, a handle fixedly connected to the top of the rod G through a threaded block, the bottom of the threaded block and the top of the adjusting cylinder fixedly connected, a sealing sleeve fitted to the threaded outer wall of the threaded block, and connecting pipes A and B fixedly connected to both sides of the bottom of the adjusting cylinder, with the interior of connecting pipes A and B fitting with the top of the connecting port.
[0010] The interior of the built-in port is adapted to the outer wall of the connecting block, the interior of the side port is adapted to the outer wall of the rod D, and the interior of the snap-fit pin is adapted to the interior of the snap-fit cavity.
[0011] The side plate has a moving cavity in the middle, and the interior of the moving cavity is movably connected to the outer wall of rod B.
[0012] The connecting block has connecting sleeves at both the top and bottom ends, and the inside of the connecting sleeves is movably connected to the outer walls of rod A and rod C.
[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0014] 1. In the above solution, the infrared detector and millimeter-wave radar are integrated and installed inside the fire helmet. The precise fit between the components at the bottom of the snap-fit panel achieves a stable and integrated installation, which avoids the risk of damage due to the high installation position and frees up the hands. Disassembly is facilitated by rotating and pulling specific components, making it easy to replace the equipment and ensuring normal use and maintenance of the equipment in complex environments.
[0015] 2. In the above scheme, this device drives the rod D and its related components through a stepper motor to achieve achievable rotation of the infrared detector head and millimeter-wave radar, and can stagger the rotation to fill blind spots, thereby enhancing scanning efficiency. It can cover all directions of complex fire scenes in all directions, effectively solving the problem of traditional devices having a single perspective and a large number of detection blind spots. At the same time, its structural design also makes it possible to integrate with helmets and other equipment, improving ease of use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall structure of the bottom of the snap-fit panel of this utility model;
[0018] Figure 3 This is a top view schematic diagram of the overall structure of the fire helmet of this utility model;
[0019] Figure 4 This is a schematic diagram of the two-dimensional internal structure of the card receiving pin of this utility model;
[0020] Figure 5 This is a schematic diagram of the overall internal structure of the regulating cylinder of this utility model.
[0021] [Figure Labels]
[0022] 1. Fire helmet; 2. Snap-fit panel; 3. Adjustable cylinder; 4. Infrared detector head; 5. Stepper motor; 6. Millimeter-wave radar; 7. Rod A; 8. Bevel tooth A; 9. Snap-fit pin; 91. Connecting block; 10. Bevel tooth E; 11. Side plate; 12. Bevel tooth B; 13. Rod B; 14. Bevel tooth C; 15. Rod C; 151. Bevel tooth F; 16. Rod D; 18. Snap-fit groove; 19. Side opening; 20. 21. Internal port; 22. Snap-fit cavity; 23. Limiting side port; 24. Connection port; 25. Storage cavity; 26. Divider cavity; 27. Piston A; 28. Outer cylinder; 29. Rod F; 30. Spring A; 31. Piston B; 32. Movable rod; 33. Piston C; 34. Rod G; 35. Spring B; 36. Threaded block; 37. Handle; 38. Sealing sleeve; 39. Connecting pipe A; 310. Connecting pipe B. Detailed Implementation
[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0024] Example 1:
[0025] Please see Figure 1-5 An embedded structure for a multi-sensor fire emergency navigation device includes a fire helmet 1, a snap-fit panel 2 inside the fire helmet 1, an adjusting cylinder 3 fixedly installed on the side of the snap-fit panel 2, an infrared detector 4 movably installed on the top of the snap-fit panel 2, stepper motors 5 symmetrically arranged on the adjusting cylinder 3, the top of the stepper motors 5 being fixedly connected to the bottom of the fire helmet 1, and a millimeter-wave radar 6 movably installed on the bottom of the snap-fit panel 2.
[0026] Benefits: During operation, the snap-fit panel 2 is first installed inside the fire helmet 1. Then, the stepper motor 5 is started, causing the infrared detector 4 and millimeter-wave radar 6 to rotate. It should be noted that when the infrared detector 4 rotates to the left, the millimeter-wave radar 6, which is symmetrically arranged at the bottom, will rotate to the right. This avoids blind spots during detection and improves efficiency. When disassembly is required, the infrared detector 4 and millimeter-wave radar 6 can be quickly removed from the fire helmet 1 and replaced by removing the limit switch inside the adjusting cylinder 3, making installation and disassembly convenient.
[0027] Example 2:
[0028] Please see Figure 2Both sides of the snap-fit panel 2 are fixedly fitted with snap-fit pins 9 at the bottom. A connecting block 91 is fixedly connected to the middle of the snap-fit panel 2. A rod A7 is fixedly fitted to the bottom of the infrared detector head 4. A bevel tooth A8 is fixedly fitted to the bottom of the rod A7. The middle circumference of the rod A7 is movably sleeved with the top of the connecting block 91. A rod C15 is movably sleeved to the bottom of the connecting block 91. A bevel tooth C14 is fixedly fitted to the top of the rod C15. The bottom of the bevel tooth C14 passes through the connecting block 91 and is fixedly connected to the millimeter-wave radar 6. A bevel tooth E10 is engaged with the side of the bevel tooth C14 and the bevel tooth A8. A bevel tooth is fixedly fitted on the side of the bevel tooth E10 away from the bevel tooth C14. A bevel tooth B12 is movably fitted with a side plate 11 on its outer wall. The top of the side plate 11 is fixedly connected to the bottom of the side plate 11 near the connecting block 91. A bevel tooth B12 is fixedly installed on the outer wall of the end of the rod B13 away from the bevel tooth E10. A bevel tooth F151 is meshed with the bottom of the bevel tooth B12. The bottom of the bevel tooth F151 is movably connected to the top of the stepper motor 5 through the rod D16. A motion cavity is opened in the middle of the side plate 11. The interior of the motion cavity is movably fitted with the outer wall of the rod B13. A connecting sleeve is opened at both the top and bottom ends of the connecting block 91. The interior of the connecting sleeve is movably fitted with the outer walls of the rod A7 and the rod C15.
[0029] Benefits: When the stepper motor 5 drives the rod D16 to rotate, the bevel tooth F151 fixedly connected to the top of the rod D16 will rotate. When the bevel tooth F151 rotates, the bevel tooth B12 meshing at the top will also rotate. The rod B13 and bevel tooth E10 fixedly connected to the bevel tooth B12 will both rotate. When the bevel tooth E10 rotates, the bevel tooth A8 meshing at the top and the bevel tooth C14 meshing at the bottom will rotate. When the bevel teeth A8 and C14 rotate, the rods C15 and A7 fixedly connected will drive the connected infrared detector 4 and millimeter-wave radar 6 to rotate. When the bevel tooth E10 moves forward, the rod A7 will rotate in the opposite direction and the bevel tooth C14 meshing at the bottom will rotate in the forward direction. When the bevel tooth E10 moves backward, the rod A7 will rotate in the forward direction and the bevel tooth C14 meshing at the bottom will rotate in the opposite direction. This allows the infrared detector 4 and the millimeter-wave radar 6 to rotate in staggered order to fill their respective blind spots, thereby enhancing scanning efficiency. Both the infrared detector 4 and the millimeter-wave radar 6 can rotate 180 degrees.
[0030] Example 3:
[0031] Please see Figure 3-5The fire helmet 1 has symmetrical locking cavities 21 on both sides. Each locking cavity 21 has a limiting side opening 22 on both sides. A locking groove 18 is formed between the symmetrical locking cavities 21. Each locking groove 18 has symmetrical side openings 19 and an internal opening 20 on both sides. A connecting port 23 is fixedly installed on the top of the locking pin 9. A storage cavity 24 is formed inside the locking pin 9. Partition cavities 25 are formed on both sides of the bottom of the storage cavity 24. A piston A26 is movably sleeved inside the partition cavities 25. An outer cylinder 27 is fixedly installed on the side of the piston A26 away from the storage cavity 24. A rod F29 is fixedly installed inside the outer cylinder 27. A spring A30 is wound around the outer wall of the rod F29. A piston B31 is movably sleeved on the outer wall of the rod F29. A movable rod 32 is fixedly installed on the side of the piston B31 away from the rod F29. The inner side of the movable rod 32 is movably sleeved with the outer wall of the rod F29. The inner side of the adjusting cylinder 3 is movably sleeved with the piston C33. The top of the piston C33 is fixedly connected with the rod G34. The outer wall of the rod G34 is movably sleeved with the spring B35. The top of the rod G34 passes through the threaded block 36 and is fixedly connected with the handle 37. The bottom of the threaded block 36 is fixedly connected with the top of the adjusting cylinder 3. The outer wall of the threaded block 36 is threadedly fitted with the sealing sleeve 38. The bottom sides of the adjusting cylinder 3 are fixedly connected with the connecting pipe A39 and the connecting pipe B310. The inner side of the connecting pipe A39 and the connecting pipe B310 is adapted to the top of the connecting port 23. The inner side of the internal port 20 is adapted to the outer wall of the connecting block 91. The inner side of the side port 19 is adapted to the outer wall of the rod D16. The inner side of the snap-fit pin 9 is adapted to the inner side of the snap-fit cavity 21.
[0032] Benefits: When the infrared detector 4 and millimeter-wave radar 6 are integrally embedded inside the fire helmet 1, the locking pins 9 and locking cavity 21, which are fixedly connected to both sides of the bottom of the locking panel 2, are first internally embedded. During the installation process, the outer wall of the movable rod 32 will fit against the outer wall of the locking cavity 21, causing the movable rod 32 to retract into the outer cylinder 27, allowing the locking pin 9 to smoothly enter the interior of the locking cavity 21. When the movable rod 32 retracts into the outer cylinder 27, the piston B31, which is fixedly connected to its outer wall, will press the spring A30 along the outer wall of the rod F29, causing the spring A30 to initially store force. When the movable rod 32 is aligned with the interior of the limiting side opening 22, the spring A30 rebounds and extends the movable rod 32 outward, so that it is integrally embedded inside the limiting side opening 22. This allows the connecting block 91, which is fixedly connected to the bottom of the locking panel 2, to be embedded inside the internal opening 20, thus achieving the integrated installation of the bottom of the locking panel 2 in the fire helmet. When disassembling the helmet 1, rotate the sealing sleeve 38 to remove it from the outer wall of the threaded block 36. Then, pull the handle 37 upwards. During the pulling process, the piston C33, which is fixedly connected to the bottom of the handle 37, moves upwards inside the adjusting cylinder 3, squeezing the spring B35 connected to the top to initially store force. At the same time, when the piston C33 moves upwards, a suction force is generated at the bottom, which draws out the gas in the locking pin 9 inside the connecting tube A39 and connecting tube B310, creating a negative pressure inside the storage chamber 24. This causes the piston A26 to move to one side of the storage chamber 24, and the outer cylinder 27 drives the movable rod 32 to retract into the interior of the partition 25. Then, pulling it upwards will remove the locking pin 9 from the inside of the locking cavity 21 for easy replacement. It should be noted that the connecting tube B310 and connecting tube A39 are of different sizes. This is to connect the locking pin 9 in different positions, which facilitates positioning and installation and improves usage efficiency.
[0033] The working process of this utility model is as follows:
[0034] When stepper motor 5 drives rod D16 to rotate, the meshing transmission between bevel gear F151 and components such as bevel gear B12, rod B13, and bevel gear E10 causes bevel gears A8 and C14, and their fixedly connected rods C15 and A7, to drive the infrared detector 4 and millimeter-wave radar 6 to rotate respectively. When bevel gear E10 moves back and forth, rod A7 and bevel gear C14 rotate in opposite directions, causing the infrared detector 4 and millimeter-wave radar 6 to rotate out of alignment, filling blind spots and improving scanning efficiency. Furthermore, the infrared detector 4 and millimeter-wave radar 6 can rotate 180 degrees. The entire assembly of the infrared detector 4 and millimeter-wave radar 6 is then installed onto the fire helmet 1. When installed internally, the movable rod 32 engages with the snap-fit cavity 21, and the spring A30 rebounds, allowing the snap-fit pin 9 and connecting block 91, which are fixedly connected to the bottom of the snap-fit panel 2, to be embedded into the snap-fit cavity 21 and the internal opening 20, respectively, thus completing the integrated installation. When disassembling, rotating the sealing sleeve 38 and pulling the handle 37 causes the piston C33 to move and generate suction, creating a negative pressure in the storage cavity 24, which in turn causes the movable rod 32 to retract, thereby pulling out the snap-fit pin 9 for easy replacement. In addition, the connecting pipes B310 and A39, due to their different sizes, can connect snap-fit pins 9 at different positions, serving as limiters and installation devices, thus improving efficiency.
[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0037] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A built-in structure of a multi-sensor fire emergency navigation device, comprising a fire helmet (1), characterized in that, The fire helmet (1) has a snap-fit panel (2) inside, and an adjustment cylinder (3) is fixedly installed on the side of the snap-fit panel (2). An infrared detector (4) is movably installed on the top of the snap-fit panel (2). A stepper motor (5) is symmetrically arranged on the adjustment cylinder (3). The top of the stepper motor (5) is fixedly connected to the bottom of the fire helmet (1). A millimeter-wave radar (6) is movably installed on the bottom of the snap-fit panel (2).
2. The flush mount structure for a multi-sensor fire protection emergency navigation apparatus according to claim 1, wherein The fire helmet (1) has symmetrical snap-fit cavities (21) on both sides. The snap-fit cavities (21) have limit side openings (22) on both sides. The symmetrical snap-fit cavities (21) have snap-fit grooves (18) between them. The snap-fit grooves (18) have symmetrical side openings (19) and internal openings (20) on both sides.
3. The flush mount configuration of a multi-sensor fire protection emergency navigation apparatus according to claim 2, wherein, The bottom of both sides of the snap-fit panel (2) is fixedly installed with snap-fit pins (9). A connecting block (91) is fixedly connected to the middle of the snap-fit panel (2). A rod A (7) is fixedly installed at the bottom of the infrared detector head (4). A bevel tooth A (8) is fixedly installed at the bottom of the rod A (7). The middle circumference of the rod A (7) is movably sleeved with the top of the connecting block (91). A rod C (15) is movably sleeved at the bottom of the connecting block (91). A bevel tooth C (14) is fixedly installed at the top of the rod C (15). The bottom of the bevel tooth C (14) passes through the connecting block (91) and is fixedly connected to the millimeter-wave radar (6). (14) and the side of the bevel tooth A (8) are meshed with bevel tooth E (10). The side of the bevel tooth E (10) away from the bevel tooth C (14) is fixedly installed with bevel tooth B (12). The outer wall of the bevel tooth B (12) is movably sleeved with a side plate (11). The top of the side plate (11) and the bottom of the side near the connecting block (91) are fixedly connected. The outer wall of the end of the rod B (13) away from the bevel tooth E (10) is fixedly installed with bevel tooth B (12). The bottom of the bevel tooth B (12) is meshed with bevel tooth F (151). The bottom of the bevel tooth F (151) is movably connected to the top of the stepper motor (5) through rod D (16).
4. The flush mount structure for a multi-sensor fire protection emergency navigation apparatus according to claim 3, wherein The top of the snap-fit pin (9) is fixedly installed with a connection port (23). The snap-fit pin (9) has a storage cavity (24) inside. Both sides of the bottom of the storage cavity (24) are provided with partitions (25). A piston A (26) is movably sleeved inside the partition (25). An outer cylinder (27) is fixedly installed on the side of the piston A (26) away from the storage cavity (24). A rod F (29) is fixedly installed inside the outer cylinder (27). A spring A (30) is wound around the outer wall of the rod F (29). A piston B (31) is movably sleeved on the outer wall of the rod F (29). A movable rod (32) is fixedly installed on the side of the piston B (31) away from the rod F (29). The interiors of the piston B (31) and the movable rod (32) are movably sleeved with the outer wall of the rod F (29).
5. The flush mount structure for a multi-sensor fire protection emergency navigation apparatus according to claim 1, wherein The adjusting cylinder (3) is movably fitted with a piston C (33), and a rod G (34) is fixedly connected to the top of the piston C (33). A spring B (35) is movably fitted to the outer wall of the rod G (34). The top of the rod G (34) passes through a threaded block (36) and is fixedly connected with a handle (37). The bottom of the threaded block (36) is fixedly connected to the top of the adjusting cylinder (3). A sealing sleeve (38) is installed on the threaded outer wall of the threaded block (36). A connecting pipe A (39) and a connecting pipe B (310) are fixedly connected to both sides of the bottom of the adjusting cylinder (3). The interior of the connecting pipe A (39) and the connecting pipe B (310) are adapted to the top of the connecting port (23).
6. The flush mount configuration of a multi-sensor fire protection emergency navigation apparatus according to claim 3, wherein, The interior of the built-in port (20) is adapted to the outer wall of the connecting block (91), the interior of the side port (19) is adapted to the outer wall of the rod D (16), and the interior of the snap-fit pin (9) is adapted to the interior of the snap-fit cavity (21).
7. The flush mount configuration of a multi-sensor fire protection emergency navigation apparatus according to claim 3, wherein, The side plate (11) has a moving cavity in the middle, and the interior of the moving cavity is movably connected to the outer wall of the rod B (13).
8. The flush mount configuration of a multi-sensor fire protection emergency navigation apparatus according to claim 3, wherein, The connecting block (91) has connecting sleeves at both the top and bottom ends, and the inside of the connecting sleeves is movably connected to the outer wall of rod A (7) and rod C (15).