Wearable emergency respiratory protective mask for forest firemen

Abstract

The utility model relates to the technical field of forest fire control, in particular to a wearable emergency respiratory protective mask for forest firemen, which is characterized in that tooth chain belts are fixedly arranged on the left side and the right side in a strip-shaped opening formed in the rear side of a full face mask respectively, the two tooth chain belts are matched and meshed with each other, and self-locking zipper heads are movably arranged on the two tooth chain belts; the connecting blocks are fixedly arranged on the left side and the right side of the full face mask respectively, connecting columns are fixedly arranged in the connecting blocks, pull ropes are fixedly arranged on the pull heads, the connecting blocks movably sleeve the pull ropes, the pull ropes movably abut against the connecting columns, and the fixing shell is fixedly arranged at the bottom of the mounting frame. Protective shells are fixedly arranged at the positions, located on the left side and the right side of the fixing shell, of the bottom of the mounting frame, the end of the pull rope penetrates through the protective shells and then is provided with an adjusting mechanism connected with the fixing shell, the wearing opening can be enlarged, convenient tightening can be achieved, wearing is more convenient, and therefore the fire rescue efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to forest fire fighting technical field, concretely relates to a kind of forest firemen wear formula emergency breathing protective face guard. BACKGROUND

[0002] Forest firemen are often threatened by high temperature, thick smoke and toxic gas when fighting fire, and the wearing convenience and sealing property of breathing protective equipment directly affect rescue efficiency and personnel safety. Currently, the wearing opening of fire breathing protective face guard on the market is generally small, and it needs to be forced open by hand during wearing process. In order to make wearing more fit, it is also necessary to manually adjust tightening components such as tightening rope, so that the breathing filter assembly can be fitted to the mouth and nose of the firefighter, making the wearing process not convenient. Therefore, there is an urgent need for a kind of forest firemen wear formula emergency breathing protective face guard. UTILITY MODEL CONTENT

[0003] The utility model aims at the defects and deficiencies of prior art, and provides a kind of forest firemen wear formula emergency breathing protective face guard with reasonable design to solve the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: it contains overall cover, mounting bracket and smoke filter, the front side opening of overall cover is provided with mounting bracket, and smoke filter is fixedly arranged on mounting bracket;

[0005] It also contains:

[0006] The toothed belt is two, respectively fixedly arranged in the left and right sides of the strip-shaped opening in the rear side of overall cover, and the two toothed belts are matched and engaged, and self-locking zipper heads are movably arranged on the two toothed belts;

[0007] The connecting block is two, respectively fixedly arranged on the left and right sides of overall cover, connecting column is fixedly arranged in connecting block, pull rope is fixedly arranged on pull head, connecting block is movably sleeved on pull rope, and pull rope is movably abutted on connecting column;

[0008] The fixed shell is fixedly arranged on the bottom of mounting bracket, and protective shell is fixedly arranged on the left and right sides of fixed shell, the end of pull rope is provided with adjusting mechanism connected with fixed shell after passing through protective shell.

[0009] Further, the adjusting mechanism contains:

[0010] The rotating column is rotatably arranged in the fixed shell through bearing, the end of pull rope is fixedly connected with rotating column, two partitions are rotatably sleeved on rotating column through bearing, and the partitions are fixedly arranged in fixed shell;

[0011] The coil spring is fixedly sleeved on the rotating column between two partitions, and one end of the coil spring is fixedly connected with the inner wall of the fixed shell.

[0012] The polygonal rod is movably inserted on the rotating column, a spring connected with the polygonal rod is fixedly arranged in the rotating column, a rotating plate is fixedly arranged at the lower end of the polygonal rod, an adjusting handle is movably inserted at the bottom of the fixed shell, and the adjusting handle is fixedly connected with the rotating plate.

[0013] The trapezoidal blocks are arranged on the bottom of the rotating plate and the inner bottom wall of the fixed shell.

[0014] Further, a sealing strip is fixedly arranged on the inner wall of the rear side of the comprehensive cover at one side of the strip-shaped opening, and the side wall of the sealing strip is connected with the inner wall of the comprehensive cover through a magic tape at the other side of the strip-shaped opening.

[0015] Further, a cape is fixedly arranged at the bottom of the comprehensive cover, and a reflective strip is arranged on the cape.

[0016] Further, a high-temperature-resistant silica gel ring is fixedly arranged on the inner wall of the comprehensive cover, and the high-temperature-resistant silica gel ring is arranged at the outer ring position of the front opening.

[0017] Further, a rotating sleeve is movably sleeved on the connecting column through a bearing, and the pull rope is movably arranged on the rotating sleeve.

[0018] Compared with the prior art, the forest firefighter wearing type emergency breathing protective mask has the advantages that the wearing opening can be enlarged, the tightening is convenient, the wearing is more convenient, and the fire rescue efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the utility model.

[0020] Figure 2 is an exploded view of the comprehensive cover, the toothed belt, the self-locking zipper head, the connecting block, the connecting column, the sealing strip, the high-temperature-resistant silica gel ring and the rotating sleeve in the utility model.

[0021] Figure 3 is an exploded view of the fixed shell, the protective shell and the adjusting mechanism in the utility model.

[0022] Figure 4 is Figure 3 is an enlarged view of A in

[0023] MARKS IN THE DRAWINGS:

[0024] 1. Full face mask; 2. Mounting bracket; 3. Smoke filter; 4. Toothed chain strap; 5. Self-locking zipper head; 6. Connecting block; 7. Connecting post; 8. Pull cord; 9. Fixing shell; 10. Protective shell; 11. Adjustment mechanism; 11. Rotating post; 11-1. Partition; 11-2. Coil spring; 11-3. Polygonal rod; 11-4. Spring; 11-5. Rotating plate; 11-6. Adjustment handle; 11-7. Trapezoidal block; 11-8. Sealing tape; 12. Shawl; 13. Reflective strip; 14. High-temperature resistant silicone ring; 15. Rotating sleeve; 16. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] like Figures 1-4 As shown, this specific embodiment adopts the following technical solution: It includes a full-face mask 1, a mounting frame 2, and a smoke filter 3. The mounting frame 2 is provided at the front opening of the full-face mask 1, and the smoke filter 3 is fixedly installed on the mounting frame 2. A shawl 13 is fixedly installed at the bottom of the full-face mask 1, and a reflective strip 14 is provided on the shawl 13. The shawl 13 can protect the neck and shoulders of firefighters and prevent the fire from spreading too much. The reflective properties of the reflective strip 14 can make firefighters wearing breathing protective masks more visible at night, thereby effectively improving teamwork. A high-temperature resistant silicone ring 15 is fixedly installed on the inner wall of the full-face mask 1, and the high-temperature resistant silicone ring 15 is located at the outer ring position of the front opening. The high-temperature resistant silicone ring 15 can fit the mouth and nose of the firefighter, improving the sealing while also providing good wearing comfort.

[0027] It also includes:

[0028] Two toothed chain straps 4 are fixedly installed on the left and right sides of the strip opening on the rear side of the full-face mask 1, and the two toothed chain straps 4 are engaged with each other. Self-locking zipper heads 5 are movably installed on the two toothed chain straps 4. The strip opening can be enlarged to allow the bottom wearing opening of the full-face mask 1 to be enclosed. The toothed chain straps 4 are sealed toothed chains, and the strip opening can be closed by cooperating with the self-locking zipper heads 5. A sealing strip 12 is fixedly installed on the inner wall of the rear side of the full-face mask 1 at one side of the strip opening. The side wall of the sealing strip 12 is connected to the inner wall of the full-face mask 1 by Velcro at the other side of the strip opening. The sealing strip 12 can further improve the sealing of the strip opening of the full-face mask 1 and prevent dense smoke from entering the full-face mask 1 through the strip opening.

[0029] Connecting blocks 6 are fixedly arranged on the left and right sides of the full cover 1, connecting columns 7 are fixedly arranged in the connecting blocks 6, pull ropes 8 are fixedly arranged on the puller, the connecting blocks 6 are movably sleeved on the pull ropes 8, rotating sleeves 16 are rotatably sleeved on the connecting columns 7, the pull ropes 8 are movably arranged on the rotating sleeves 16, and the rotating sleeves 16 can reduce the abrasion of the pull ropes 8 and prolong the service life of the pull ropes 8;

[0030] The fixed shell 9 is fixedly arranged at the bottom of the mounting frame 2, the protective shells 10 are fixedly arranged on the left and right sides of the bottom of the mounting frame 2, and the ends of the pull ropes 8 are provided with adjusting mechanisms 11 connected with the fixed shell 9 after penetrating through the protective shells 10;

[0031] The adjusting mechanism 11 comprises:

[0032] A rotating column 11-1 is rotatably arranged in the fixed shell 9, the ends of the pull ropes 8 are fixedly connected with the rotating column 11-1, two partitions 11-2 are rotatably sleeved on the rotating column 11-1, and the partitions 11-2 are fixedly arranged in the fixed shell 9;

[0033] A coil spring 11-3 is fixedly sleeved on the rotating column 11-1 between the two partitions 11-2, and one end of the coil spring 11-3 is fixedly connected with the inner wall of the fixed shell 9;

[0034] A polygonal rod 11-4 is movably inserted on the rotating column 11-1, a spring 11-5 connected with the polygonal rod 11-4 is fixedly arranged in the rotating column 11-1, a rotating plate 11-6 is fixedly arranged at the lower end of the polygonal rod 11-4, an adjusting handle 11-7 is movably inserted at the bottom of the fixed shell 9, and the adjusting handle 11-7 is fixedly connected with the rotating plate 11-6;

[0035] A plurality of trapezoidal blocks 11-8 are equally distributed on the bottom of the rotating plate 11-6 and the inner bottom wall of the fixed shell 9, the trapezoidal blocks 11-8 on the rotating plate 11-6 and the fixed shell 9 are movably arranged in cooperation, the cooperation of the adjusting handle 11-7, the rotating plate 11-6, the polygonal rod 11-4 and the rotating column 11-1 can realize the winding of the pull rope 8, the cooperation of the spring 11-5, the coil spring 11-3 and the trapezoidal blocks 11-8 can realize the one-way restriction of the rotation of the rotating column 11-1, and the reverse rotation of the rotating column 11-1 can be avoided to prevent the pull rope 8 from being loose in the winding state.

[0036] In use, the self-locking zipper head 5 can be pulled to the upper end of the toothed chain belt 4 in the idle state, the strip-shaped opening is opened to expand the wearing opening at the bottom of the comprehensive cover 1, the adjusting handle 11-7 is rotated according to the body shape of the firefighter, the adjusting handle 11-7 drives the rotating plate 11-6 to rotate, the downward pushing force of the spring 11-5 on the polygonal rod 11-4 and the rotating plate 11-6 and the cooperation of the trapezoidal block 11-8 can realize the one-way rotation locking of the adjusting handle 11-7 and the rotating plate 11-6, the rotating plate 11-6 drives the rotating column 11-1 to rotate through the polygonal rod 11-4, the pulling rope 8 can be wound on the rotating column 11-1, and the usable length of the pulling rope 8 can be controlled.

[0037] When the forest fire occurs, the comprehensive cover 1 can be directly worn on the head, the self-locking zipper head 5 is pulled downward, the two toothed chain belts 4 are used to seal the strip-shaped opening, the self-locking zipper head 5 can also pull the pulling rope 8 to the rear lower side, the pulling rope 8 slides on the connecting column 7, the mounting frame 2 and the smoke filter 3 are close to the mouth and nose of the firefighter through the rotating column 11-1 and the fixed shell 9, and the high-temperature-resistant silica gel ring 15 is in contact with the face of the firefighter to complete wearing.

[0038] Compared with the prior art, the utility model has the advantages that:

[0039] Through the cooperation of the toothed chain belt 4, the self-locking zipper head 5, the connecting block 6, the connecting column 7 and the pulling rope 8, the size of the wearing opening at the bottom of the comprehensive cover 1 can be expanded, and the mounting frame 2 and the smoke filter 3 can be close to the mouth and nose of the firefighter after wearing.

[0040] Through the cooperation of the adjusting mechanism 11, the effective length of the pulling rope 8 can be adapted and adjusted according to the head and face size of the firefighter in advance when the breathing protective mask is idle.

[0041] The reflective characteristic of the reflective strip 14 can make the firefighter wearing the breathing protective mask more easily noticed at night, thereby effectively improving the team cooperation ability.

[0042] The rotation of the rotating sleeve 16 can reduce the abrasion of the pulling rope 8 and improve the service life of the pulling rope 8.

[0043] For those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, and equivalent replacement of part of the technical features, any modification, equivalent replacement, improvement and the like made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A forest firefighter wearing emergency breathing protective mask, comprising a full mask (1), a mounting frame (2) and a smoke filter (3), the front side of the full mask (1) is provided with the mounting frame (2), and the mounting frame (2) is fixedly provided with the smoke filter (3); characterized in that It also contains: The toothed belt (4) is two, which are fixedly arranged in the left and right sides of the strip-shaped opening in the rear side of the full mask (1), and the two toothed belts (4) are arranged in meshing cooperation, and the two toothed belts (4) are movably provided with self-locking zipper heads (5); The connecting block (6) is two, which are fixedly arranged on the left and right sides of the full mask (1), the connecting block (6) is fixedly provided with a connecting column (7) in the connecting block (6), the pull rope (8) is fixedly arranged on the pull head, the connecting block (6) is movably sleeved on the pull rope (8), and the pull rope (8) is movably arranged on the connecting column (7); The fixed shell (9) is fixedly arranged on the bottom of the mounting frame (2), the protective shell (10) is fixedly arranged on the left and right sides of the bottom of the mounting frame (2) located in the fixed shell (9), and the end of the pull rope (8) is provided with an adjusting mechanism (11) connected with the fixed shell (9) after penetrating through the protective shell (10).

2. A forest firefighter worn emergency breathing protective mask according to claim 1, characterized in that: The adjusting mechanism (11) contains: The rotating column (11-1) is rotatably arranged in the fixed shell (9) through a bearing, the end of the pull rope (8) is fixedly connected with the rotating column (11-1), two partitions (11-2) are rotatably sleeved on the rotating column (11-1) through a bearing, and the partitions (11-2) are fixedly arranged in the fixed shell (9); The coil spring (11-3) is fixedly sleeved on the rotating column (11-1) between the two partitions (11-2), and one end of the coil spring (11-3) is fixedly connected with the inner wall of the fixed shell (9); The polygonal rod (11-4) is movably inserted into the rotating column (11-1), the spring (11-5) connected with the polygonal rod (11-4) is fixedly arranged in the rotating column (11-1), the lower end of the polygonal rod (11-4) is fixedly provided with a rotating plate (11-6), the adjusting handle (11-7) is movably inserted into the bottom of the fixed shell (9), and the adjusting handle (11-7) is fixedly connected with the rotating plate (11-6); The trapezoidal blocks (11-8) are distributed on the bottom of the rotating plate (11-6) and the inner bottom wall of the fixed shell (9) at equal angles, and the trapezoidal blocks (11-8) on the rotating plate (11-6) and the fixed shell (9) are movably arranged in meshing cooperation.

3. A forest firefighter wearable emergency breathing protective mask according to claim 1, characterized in that: The sealing band (12) is fixedly arranged on one side of the inner wall of the rear side of the full mask (1), and the side wall of the sealing band (12) is connected with the inner wall of the full mask (1) through a magic tape.

4. A forest firefighter wearable emergency breathing protective mask according to claim 1, characterized in that: The bottom of the full mask (1) is fixedly provided with a cape (13), and the cape (13) is provided with a reflective strip (14).

5. A forest firefighter wearable emergency breathing protective mask according to claim 1, wherein: The inner wall of the comprehensive cover (1) is fixedly provided with a high-temperature-resistant silica gel ring (15), and the high-temperature-resistant silica gel ring (15) is arranged at the outer ring position of the front opening.

6. A forest firefighter wearable emergency breathing protective mask according to claim 1, wherein: A rotating sleeve (16) is rotatably sleeved on the connecting column (7) through a bearing, and the pull rope (8) is movably arranged on the rotating sleeve (16).

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