Multifunctional fire-proof suit hood

Abstract

The utility model discloses a multifunctional fire-proof suit head cover which comprises a shell, an observation window is arranged on the shell, two rotating grooves are formed in the outer wall of the shell, rotating discs are arranged in the rotating grooves, outer extrusion grooves are formed in the rotating discs, outer positioning blocks are arranged in the outer extrusion grooves through outer elastic mechanisms, outer positioning holes are formed in the outer wall of the shell, and the outer positioning holes are communicated with the rotating discs. Two mounting holes are formed in the rotating disc, air holes corresponding to the mounting holes are formed in the inner wall of the shell, and mounting pipes are arranged in the mounting holes through sealing mechanisms. Two protective nets are arranged in each mounting groove, and when one protective net is blocked, the other protective net can be quickly switched to work. By means of the design, the reliability of the hood in a complex fire environment is greatly improved, it is ensured that when the protective net is blocked, good air inlet and outlet functions can still be continuously kept, normal breathing of a user is ensured, and smooth rescue work is not affected.

Description

Technical Field

[0001] This utility model relates to the field of protective equipment technology, specifically a multifunctional fire-resistant suit hood. Background Technology

[0002] As a core component of fire-resistant suits, the fire-resistant hood plays a crucial role in protecting the user's head and neck from flame burns and high-temperature scalds in scenarios such as fire rescue and high-temperature industrial operations.

[0003] Currently, most fire-resistant suit hoods on the market use a single protective mesh within their vents, without a backup mesh. In actual use, this mesh is highly susceptible to blockage when exposed to high-temperature smoke, molten particles, or other foreign objects at a fire scene. Once blocked, the hood's air intake and exhaust functions are directly affected. In critical, life-or-death situations like fire rescue, impaired airflow can obstruct breathing, hindering normal physiological metabolism and severely interfering with rescue efforts, posing a significant threat to the user's life and potentially causing the entire rescue mission to fail. Therefore, a multi-functional fire-resistant suit hood is urgently needed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a multifunctional fire-resistant suit hood to solve the problem mentioned in the background art that most fire-resistant suit hoods have a single protective net inside the air vents, which is not equipped with a spare protective net.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional fire-resistant hood, comprising an outer shell, an observation window on the outer shell, two rotating grooves on the outer wall of the outer shell, a turntable within the rotating grooves, an outer compression groove on the turntable, an outer positioning block within the outer compression groove via an outer elastic mechanism, an outer positioning hole on the outer wall of the outer shell, two mounting holes on the turntable, air holes corresponding to the mounting holes on the inner wall of the outer shell, a mounting tube within the mounting hole via a sealing mechanism, a valve within the mounting tube, a mounting groove on the inner wall of the mounting hole, a top ring within the mounting groove via an inner elastic mechanism, a protective net on the mounting tube, a first disassembly block and a second disassembly block respectively on the mounting tube and the protective net, a disassembly port on the turntable, and the first disassembly block and the second disassembly block connected by a connecting mechanism.

[0006] Preferably, the external elastic mechanism includes an external spring disposed in the external extrusion groove, and the two ends of the external spring are respectively connected to the outer wall of the external positioning block and the inner wall of the external extrusion groove.

[0007] Preferably, the sealing mechanism includes a sealing ring disposed on the outer wall of the mounting tube, and the inner wall of the mounting hole is provided with a sealing groove.

[0008] Preferably, the internal elastic mechanism includes multiple internal springs disposed in the mounting groove, with both ends of the multiple internal springs connected to the inner wall of the mounting groove and the outer wall of the top ring, respectively.

[0009] Preferably, the connecting mechanism includes an inner positioning block installed on the first disassembly block, and the second disassembly block is provided with a through hole.

[0010] Preferably, each turntable has two disassembly / assembly ports and two inner positioning holes, and the two disassembly / assembly ports and inner positioning holes are circumferentially evenly spaced.

[0011] Preferably, both valves are one-way valves, one of which is an inlet one-way valve and the other is an outlet one-way valve.

[0012] Preferably, the outer extrusion groove is a regular hexagonal groove, and the outer positioning block is a regular hexagonal prism.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. Each mounting slot is equipped with two protective nets. If one net becomes blocked, the user can quickly switch to the other. This design greatly improves the reliability of the helmet in complex fire environments, ensuring that even when the protective net becomes blocked, it can still maintain good air intake and exhaust functions, guaranteeing the user's normal breathing and not affecting the smooth progress of rescue work.

[0015] 2. By pressing the protective net and installation tube, the first and second disassembly blocks move and squeeze the top ring, disengaging the inner positioning block from the inner positioning hole. Rotating the protective net and installation tube until they align with the disassembly port allows for easy removal of the protective net and installation tube. This design facilitates cleaning and replacement of the protective net, as well as repair or replacement of valves and other components, significantly reducing maintenance time, improving the maintainability of the fire-resistant suit, and ensuring that the fire-resistant suit is always in good working order in emergency situations. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the turntable after vertical sectioning;

[0019] Figure 4 for Figure 3A schematic diagram of the structural method at point A;

[0020] Figure 5 for Figure 4 A schematic diagram of the structural method at point B.

[0021] In the diagram: 1. Outer shell; 2. Observation window; 3. Air vent; 4. Mounting slot; 5. Turntable; 6. External positioning hole; 7. External extrusion slot; 8. External positioning block; 9. External spring; 10. Mounting hole; 11. Mounting tube; 12. Valve; 13. Protective net; 14. Disassembly / assembly port; 15. Sealing ring; 16. Sealing groove; 17. Mounting slot; 18. Top ring; 19. Inner spring; 20. Inner positioning hole; 21. First disassembly / assembly block; 22. Second disassembly / assembly block; 23. Inner positioning block; 24. Perforation. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a multifunctional fire-resistant suit hood. The hood's basic frame is mainly composed of an outer shell 1, which is connected to the fire-resistant suit via a zipper (not shown in the figure, but can be referenced from existing technology). An observation window 2 is provided on the outer shell 1. The observation window 2 is made of a special high-temperature and impact-resistant material, providing the user with a clear view to accurately observe the surrounding situation in a fire environment.

[0024] The outer wall of the outer casing 1 has two rotating grooves 4, each containing a rotatable turntable 5. The turntable 5 has an outer extrusion groove 7, which is a regular hexagonal groove. A matching outer positioning block 8 is a regular hexagonal prism. The outer positioning block 8 is mounted within the outer extrusion groove 7 via an outer elastic mechanism, which includes an outer spring 9. Both ends of the outer spring 9 are tightly connected to the outer wall of the outer positioning block 8 and the inner wall of the outer extrusion groove 7, respectively. When the angle of the turntable 5 needs to be adjusted, the outer positioning block 8, under the action of the outer spring 9, can be positioned at different locations within the outer positioning hole 6 on the outer wall of the outer casing 1, thereby flexibly changing the orientation of other components on the turntable 5.

[0025] Two mounting holes 10 are provided on the turntable 5. Air vents 3 are provided on the inner wall of the outer casing 1 at positions corresponding to the mounting holes 10. An installation tube 11 is installed inside the mounting holes 10 via a sealing mechanism. The sealing mechanism consists of a sealing ring 15 installed on the outer wall of the installation tube 11 and a sealing groove 16 formed on the inner wall of the mounting hole 10, ensuring a tight seal between the installation tube 11 and the mounting hole 10. Valves 12 are installed inside the installation tube 11, and both valves 12 are one-way valves, one for air intake and the other for air exhaust, thereby precisely controlling the air intake and exhaust directions within the hood to ensure smooth and stable air circulation.

[0026] The mounting tube 11 is equipped with a protective net 13 to prevent foreign objects from entering the headgear through the mounting tube 11. A first disassembly block 21 on the mounting tube 11 and a second disassembly block 22 on the protective net 13 are connected by a connecting mechanism. The connecting mechanism includes an inner positioning block 23 mounted on the first disassembly block 21 and a through hole 24 on the second disassembly block 22. The connection is achieved by inserting the inner positioning block 23 into the through hole 24. Each turntable 5 has two disassembly ports 14 and two inner positioning holes 20, which are circumferentially evenly spaced, facilitating the disassembly and installation of the protective net 13 when needed, and making it easy to clean or replace the protective net 13.

[0027] The inner wall of the mounting hole 10 is provided with a mounting groove 17, and a top ring 18 is installed in the mounting groove 17 through an internal elastic mechanism. The internal elastic mechanism consists of multiple internal springs 19, with both ends of the multiple internal springs 19 connected to the inner wall of the mounting groove 17 and the outer wall of the top ring 18, respectively. Through the elastic action of the internal springs 19, the first disassembly block 21 and the second disassembly block 22 can be squeezed, so that the inner positioning block 23 passes through the through hole 24 and is located in the inner positioning hole 20.

[0028] Working principle: The outer shell 1 is connected to the fireproof suit by a curtain. Relevant personnel can observe through the observation window 2 and can complete the air intake and exhaust through two air holes 3.

[0029] As shown in the figure, only one protective net 13 is in working condition in each rotating slot 4. If the current protective net 13 is blocked but still needs to work, the outer positioning block 8 can be pressed to compress the outer spring 9 and disengage it from the outer positioning hole 6. Then, the turntable 5 can be rotated (rotated 180 degrees) to allow the other protective net 13 to rotate out.

[0030] As shown in the figure, if the protective net 13 becomes severely clogged and needs to be cleaned or replaced, or if the valve 12 is damaged, it needs to be disassembled. Specifically: Press the protective net 13 and the mounting tube 11, so that both the protective net 13 and the mounting tube 11 are inserted into the mounting hole 10. At this time, the first disassembly block 21 and the second disassembly block 22 move and squeeze the top ring 18, so that it compresses the inner spring 19, and the inner positioning block 23 disengages from the inner positioning hole 20. Then rotate the protective net 13 and the mounting tube 11 (rotate 180 degrees) so that the first disassembly block 21 and the second disassembly block 22 are rotated to correspond with the disassembly port 14. At this time, the protective net 13 and the mounting tube 11 can be taken out directly. After taking them out, the protective net 13 and the mounting tube 11 can be separated. Finally, perform the corresponding operations on the above components.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multifunctional fire-resistant suit hood, comprising an outer shell (1), characterized in that: The outer casing (1) is provided with an observation window (2). The outer wall of the outer casing (1) is provided with two rotating grooves (4). A turntable (5) is provided in the rotating grooves (4). An outer extrusion groove (7) is provided on the turntable (5). An outer positioning block (8) is provided in the outer extrusion groove (7) through an outer elastic mechanism. An outer positioning hole (6) is provided on the outer wall of the outer casing (1). Two mounting holes (10) are provided on the turntable (5). An air hole (3) corresponding to the mounting hole (10) is provided on the inner wall of the outer casing (1). An installation hole (10) is provided in the mounting hole (10) through a sealing mechanism. The mounting tube (11) is equipped with a valve (12), the inner wall of the mounting hole (10) is equipped with a mounting groove (17), the mounting groove (17) is equipped with a top ring (18) through an internal elastic mechanism, the mounting tube (11) is equipped with a protective net (13), the mounting tube (11) and the protective net (13) are respectively equipped with a first disassembly block (21) and a second disassembly block (22), the turntable (5) is equipped with a disassembly port (14), and the first disassembly block (21) and the second disassembly block (22) are connected by a connecting mechanism.

2. The multifunctional fire-resistant suit hood according to claim 1, characterized in that: The external elastic mechanism includes an external spring (9) disposed in the external extrusion groove (7), and the two ends of the external spring (9) are respectively connected to the outer wall of the external positioning block (8) and the inner wall of the external extrusion groove (7).

3. The multifunctional fire-resistant suit hood according to claim 2, characterized in that: The sealing mechanism includes a sealing ring (15) disposed on the outer wall of the mounting tube (11), and a sealing groove (16) provided on the inner wall of the mounting hole (10).

4. The multifunctional fire-resistant suit hood according to claim 3, characterized in that: The internal elastic mechanism includes multiple internal springs (19) disposed in the mounting groove (17), with both ends of the multiple internal springs (19) connected to the inner wall of the mounting groove (17) and the outer wall of the top ring (18), respectively.

5. A multifunctional fire-resistant suit hood according to claim 4, characterized in that: The connecting mechanism includes an inner positioning block (23) installed on the first disassembly block (21), and a through hole (24) is provided on the second disassembly block (22).

6. A multifunctional fire-resistant suit hood according to claim 5, characterized in that: Each turntable (5) has two disassembly ports (14) and two inner positioning holes (20), and the two disassembly ports (14) and two inner positioning holes (20) are circumferentially evenly spaced.

7. A multifunctional fire-resistant suit hood according to claim 6, characterized in that: Both valves (12) are one-way valves, one of which is an inlet one-way valve and the other is an outlet one-way valve.

8. A multifunctional fire-resistant suit hood according to claim 7, characterized in that: The outer extrusion groove (7) is a regular hexagonal groove, and the outer positioning block (8) is a regular hexagonal prism.

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