Compressed air foam fire extinguishing device

Abstract

The utility model relates to the technical field of compressed air foam fire extinguishing devices, in particular to a compressed air foam fire extinguishing device which comprises a foam fire extinguishing pipe, a foam fire extinguishing nozzle is fixedly mounted at the end of the foam fire extinguishing pipe, and a fireproof circular ring pipe is movably arranged at the end of the foam fire extinguishing pipe. A fixed rotating plate is fixedly mounted on the fireproof circular ring pipe, a mounting circular ring is movably mounted on the foam fire extinguishing pipe, and the fixed rotating plate is hinged to the mounting circular ring. The end head of the foam fire extinguishing pipe can be lengthened through the movable fireproof circular ring pipe, so that the foam fire extinguishing pipe has a farther spraying distance, the fireproof circular ring pipe has fireproof performance, the foam fire extinguishing nozzle can be protected, the fireproof circular ring pipe can be opened, and the foam fire extinguishing nozzle can be prevented from being damaged. And therefore, the fireproof circular ring pipe has a clamping function, comburent can be pushed aside for flame retardance in use, the fire extinguishing efficiency of equipment is improved, and finally, the fireproof circular ring pipe can be folded.

Description

Technical Field

[0001] The utility model relates to the technical field of compressed air foam fire extinguishing devices, in particular to a compressed air foam fire extinguishing device. Background Art

[0002] The fire extinguishing principle of foam fire extinguisher is to use the large amount of foam it sprays. These foams can adhere to the combustibles, isolate the combustibles from the air, and at the same time reduce the temperature and destroy the combustion conditions, thereby achieving the purpose of extinguishing the fire. Existing foam fire extinguishers often need to be used by hand. During use, the distance of the spraying end cannot be adjusted, so when the fire is large, people cannot get close and it is difficult to effectively extinguish the fire. In addition, due to the poor permeability of foam fire extinguishers, the inside of the burning object may still be burning after the open flame is extinguished, and it is difficult for foam fire extinguishers to extinguish the fire inside the object, thereby reducing the efficiency of fire extinguishing. For this reason, we propose a compressed air foam fire extinguishing device to solve the above problems. Utility Model Content

[0003] The purpose of the utility model is to provide a compressed air foam fire extinguishing device to solve the problem in the background art that it is difficult to approach a large open flame and difficult to prevent internal combustion of the burning material.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a compressed air foam fire extinguishing device, comprising a foam fire extinguishing pipe, a foam fire extinguishing nozzle fixedly installed at the end of the foam fire extinguishing pipe, a fireproof circular ring pipe movably provided at the end of the foam fire extinguishing pipe, a fixed rotating plate fixedly installed on the fireproof circular ring pipe, a mounting ring movably installed on the foam fire extinguishing pipe, and the fixed rotating plate hinged on the mounting ring.

[0005] Preferably, a hinged rod is hinged at the rotating shaft of the fixed rotating plate, the hinged rod is hinged on the movable ring, and the movable ring is movably sleeved on the foam fire extinguishing pipe.

[0006] Preferably, pull blocks are fixedly installed on the left and right sides of the movable ring, and the outer sides of the pull blocks protrude to the left.

[0007] Preferably, movable grooves are provided on the upper and lower sides of the mounting ring, movable rods are fixedly installed on the upper and lower sides of the movable ring, the movable rods are movably inserted in the movable grooves, a spring is sleeved on the movable rods, and the spring is against the inner side of the movable groove.

[0008] Preferably, a sliding limit groove is provided on the foam fire extinguishing pipe, an elastic limit block is fixedly installed at the end of the sliding limit groove, a sliding limit block is fixedly installed on the inner side of the mounting ring, the sliding limit block slides on the sliding limit groove, and the sliding limit block is engaged with the elastic limit block.

[0009] Preferably, triangular grooves are arranged in an array at the ends of the fireproof circular tubes on the upper side, and triangular blocks are fixedly installed in an array at the ends of the fireproof circular tubes on the lower side, and the triangular blocks are engaged in the triangular grooves.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can extend the end of the foam fire extinguishing pipe by means of the movable fireproof ring pipe, thereby making the foam fire extinguishing pipe have a longer spraying distance, and the fireproof ring pipe has fireproof performance, so it can also protect the foam fire extinguishing nozzle, the fireproof ring pipe can be opened, so that the fireproof ring pipe has a clamping function, so when in use, the burning material can be pushed away to retard the interior, thereby increasing the efficiency of the equipment when extinguishing the fire, and finally the fireproof ring pipe can be folded up, and will not affect the normal use of the equipment when not in use, thereby increasing the adaptability of the equipment when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 It is a schematic front view of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the structural separation of the present utility model;

[0014] Figure 3 This is a schematic diagram of the structure separation of the installation ring of the utility model;

[0015] Figure 4 This is a schematic diagram of the structural separation of the fireproof circular ring pipe of the present invention.

[0016] In the figure: 1. Foam fire extinguishing pipe; 2. Foam fire extinguishing nozzle; 3. Fireproof ring pipe; 4. Fixed rotating plate; 5. Mounting ring; 6. Articulated rod; 7. Movable ring; 8. Pull block; 9. Movable groove; 10. Movable rod; 11. Spring; 12. Sliding limit groove; 13. Elastic limit block; 14. Sliding limit block; 15. Triangular groove; 16. Triangular block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-4 The utility model provides an embodiment: a compressed air foam fire extinguishing device, comprising a foam fire extinguishing pipe 1, a foam fire extinguishing nozzle 2 is fixedly installed at the end of the foam fire extinguishing pipe 1, a fireproof ring pipe 3 is movably provided at the end of the foam fire extinguishing pipe 1, a fixed rotating plate 4 is fixedly installed on the fireproof ring pipe 3, a mounting ring 5 is movably installed on the foam fire extinguishing pipe 1, and the fixed rotating plate 4 is hinged on the mounting ring 5. The device can extend and protect the foam fire extinguishing pipe 1 through the fireproof ring pipe 3. The fireproof ring pipe 3 also has a clamping function, so that when in use, the burning material can be pushed away to retard the interior, thereby increasing the efficiency of the equipment when extinguishing fires;

[0019] Furthermore, a hinged rod 6 is hinged at the rotating shaft of the fixed rotating plate 4, and the hinged rod 6 is hinged on the movable ring 7. The movable ring 7 is movably sleeved on the foam fire extinguishing pipe 1. This structure allows the user to open and close the fireproof ring pipe 3 by pushing the movable ring 7, thereby increasing the convenience of using the equipment.

[0020] Furthermore, pull blocks 8 are fixedly installed on the left and right sides of the movable ring 7, and the outer sides of the pull blocks 8 protrude to the left. This structure allows the movable ring 7 to be moved conveniently and will not fall out of the hand easily.

[0021] Furthermore, movable grooves 9 are provided on the upper and lower sides of the mounting ring 5, and movable rods 10 are fixedly installed on the upper and lower sides of the movable ring 7. The movable rod 10 is movably inserted into the movable groove 9. A spring 11 is sleeved on the movable rod 10, and the spring 11 is against the inner side of the movable groove 9. This structure enables the fireproof circular tube 3 to be in a normally closed state under the action of the spring 11, thereby increasing the stability of the equipment during use, and the fireproof circular tube 3 can have the ability to clamp, which increases the convenience of the equipment during use.

[0022] Furthermore, a sliding limit groove 12 is provided on the foam fire extinguishing pipe 1, and an elastic limit block 13 is fixedly installed at the end of the sliding limit groove 12. A sliding limit block 14 is fixedly installed on the inner side of the mounting ring 5. The sliding limit block 14 slides on the sliding limit groove 12, and the sliding limit block 14 is engaged with the elastic limit block 13. This structure allows the fireproof circular ring pipe 3 to shrink, so that the fireproof circular ring pipe 3 does not affect the normal use of the foam fire extinguishing pipe 1, thereby increasing the stability and adaptability of the equipment during use.

[0023] Furthermore, a triangular groove 15 is provided in an array at the end of the upper fireproof circular tube 3, and a triangular block 16 is fixedly installed in an array at the end of the lower fireproof circular tube 3. The triangular block 16 is engaged in the triangular groove 15. This structure enables the fireproof circular tube 3 to have a more stable clamping ability during the clamping process, further increasing the stability of the equipment during use.

[0024] Working principle: When in use, the mounting ring 5 needs to be rotated so that the sliding limit block 14 slides in the sliding limit groove 12, and the sliding limit block 14 is engaged with the elastic limit block 13 on the left for limiting. Then, the fireproof annular tube 3 can extend the range of the foam fire extinguishing tube 1. When the fireproof annular tube 3 needs to be opened to pry apart or clamp the burning material, the pull block 8 is manually pulled. At this time, the pull block 8 drives the movable annular ring 7 to move, and drives the fixed rotating plate 4 to rotate through the hinged rod 6 so that the fireproof annular tube 3 is opened, so that the fireproof annular tube 3 can clamp the burning material. To restore, directly release the pull block 8, and the pull block 8 will return the movable annular ring 7 to its original position under the rebound of the spring 11. The above is the entire working principle of the present utility model.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A compressed air foam fire extinguishing device, comprising a foam fire extinguishing pipe (1), the end of which is fixedly mounted with a foam fire extinguishing nozzle (2), characterized in that: A fireproof annular tube (3) is movably provided at the end of the foam fire extinguishing tube (1), a fixed rotating plate (4) is fixedly installed on the fireproof annular tube (3), and a mounting annular ring (5) is movably installed on the foam fire extinguishing tube (1), and the fixed rotating plate (4) is hinged on the mounting annular ring (5).

2. A compressed air foam fire extinguishing device according to claim 1, characterized in that: A hinged rod (6) is hinged at the rotating shaft of the fixed rotating plate (4), the hinged rod (6) is hinged on a movable ring (7), and the movable ring (7) is movably sleeved on the foam fire extinguishing pipe (1).

3. A compressed air foam fire extinguishing device according to claim 2, characterized in that: Pull blocks (8) are fixedly mounted on the left and right sides of the movable ring (7), and the outer sides of the pull blocks (8) protrude to the left.

4. A compressed air foam fire extinguishing device according to claim 2, characterized in that: The upper and lower sides of the mounting ring (5) are both provided with movable grooves (9), and the upper and lower sides of the movable ring (7) are fixedly provided with movable rods (10), and the movable rods (10) are movably inserted into the movable grooves (9). A spring (11) is sleeved on the movable rod (10), and the spring (11) abuts against the inner side of the movable groove (9).

5. A compressed air foam fire extinguishing device according to claim 1, characterized in that: The foam fire extinguishing pipe (1) is provided with a sliding limit groove (12), an elastic limit block (13) is fixedly installed at the end of the sliding limit groove (12), and a sliding limit block (14) is fixedly installed on the inner side of the mounting ring (5), the sliding limit block (14) slides on the sliding limit groove (12), and the sliding limit block (14) is engaged with the elastic limit block (13).

6. A compressed air foam fire extinguishing device according to claim 1, characterized in that: The ends of the fireproof circular tube (3) on the upper side are provided with triangular grooves (15) in array, and the ends of the fireproof circular tube (3) on the lower side are fixedly provided with triangular blocks (16) in array, and the triangular blocks (16) are engaged in the triangular grooves (15).

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