Atomizing nozzle structure of fire extinguisher

Abstract

The atomizing nozzle structure is characterized in that a nozzle body comprises a shell, a plurality of fire extinguishing agent output holes are formed in one side of the inner wall of the shell, the fire extinguishing agent output holes are annularly arranged around the central axis of the shell at equal intervals, one end of each fire extinguishing agent output hole extends to the surface of the shell, and the other end of each fire extinguishing agent output hole extends to the surface of the shell. A ratchet wheel is further rotationally connected to the surface of the shell and located on the inner side of each fire extinguishing agent output hole, a blocking piece is fixedly connected to the position, close to each fire extinguishing agent output hole, of the outer side wall of the ratchet wheel, a plurality of blocking pieces are fixed to the outer side of the ratchet wheel, and the blocking pieces are driven to partially shield the fire extinguishing agent output holes by adjusting the angle of the ratchet wheel; and the effect of adjusting the size of the output port of the fire extinguisher is achieved through the shielding area of the blocking piece on the fire extinguishing agent output hole, and the universality of the fire extinguisher nozzle is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher technology, specifically to a fire extinguisher atomizing nozzle structure. Background Technology

[0002] A fire extinguisher is a common fire-fighting device. It is compact and portable, and is mainly used to extinguish small fires in their initial stages. It uses internal pressure to spray extinguishing agent in the form of mist, foam or other forms. The extinguishing agent can quickly cover the fire source, reduce the temperature of the fire source, isolate oxygen or disrupt the combustion chain, thereby effectively controlling and extinguishing the fire, preventing the fire from spreading, and protecting people's lives and property.

[0003] In existing fire extinguishers, nozzles are typically connected to the output end to control the direction and angle of the extinguishing agent spray. However, most nozzles on the market cannot be adjusted at the outlet. Smaller nozzles are not suitable for scenarios that require rapid coverage of a large area, while larger nozzles are not suitable for scenarios that require fine spraying or penetrating deep into the fire source. Therefore, a fire extinguisher atomizing nozzle structure is proposed to solve the above problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is as follows: Most nozzles on the market cannot adjust the outlet.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A fire extinguisher atomizing nozzle structure includes a nozzle body, and a locking mechanism is provided on the outer side of the nozzle body;

[0007] The nozzle body includes a shell, and a plurality of extinguishing agent output holes are provided on one side of the inner wall of the shell, and each of the extinguishing agent output holes is arranged in a ring at equal intervals around the central axis of the shell;

[0008] Each of the fire extinguishing agent outlet holes has one end extending to the surface of the outer shell. A ratchet is rotatably connected to the surface of the outer shell and to the inside of each fire extinguishing agent outlet hole. A baffle is fixedly connected to the outer side wall of the ratchet near each fire extinguishing agent outlet hole.

[0009] As a further embodiment of this utility model: a pawl is rotatably connected to the surface of the outer shell and to one end of the ratchet, a torsion spring is fixedly connected to the pawl at the pivot, the other end of the torsion spring is fixedly connected to the outer shell, and one end of the outer wall of the pawl abuts against the inner side of the ratchet.

[0010] As a further embodiment of this utility model: the locking mechanism includes a movable plate, the side of which is slidably connected to the middle of the outer shell, a pull ring is fixedly connected to the side of the movable plate away from the outer shell, and a spring is fixedly connected to the middle of the other side of the movable plate, the end of which is also fixedly connected to the inner wall of the outer shell.

[0011] As a further embodiment of this utility model: a limiting block is also fixedly connected to one end of the side wall of the movable plate near the pawl, and the end side of the limiting block abuts against both sides of the outer wall of the pawl.

[0012] As a further embodiment of this utility model: a threaded head is fixedly installed on the side of the outer shell away from the movable plate, and a partition plate is also embedded and fixed on the inner wall of the outer shell near the threaded head. A plurality of extinguishing agent breaking holes are opened on the surface of the partition plate, and each of the extinguishing agent breaking holes is arranged in a ring at equal intervals around the middle of the partition plate.

[0013] As a further embodiment of this utility model: an isolation ring is fixedly connected to the middle of the inner wall of the outer shell, and an extinguishing agent breaking chamber is provided on the inner wall of the outer shell between the isolation ring and each extinguishing agent output hole.

[0014] As a further embodiment of this utility model: the inner wall of the isolation ring is hollowed out in the middle, and the inner diameter of the isolation ring gradually decreases in the direction away from the partition.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model sets a ratchet at the front end of the nozzle body, and fixes multiple baffles on the outside of the ratchet. By adjusting the angle of the ratchet, the baffles are driven to partially block the fire extinguishing agent output hole. By adjusting the area of ​​the baffle blocking the fire extinguishing agent output hole, the size of the fire extinguisher output port can be adjusted, thereby improving the universality of the fire extinguisher nozzle.

[0017] (2) A baffle with extinguishing agent breakage holes is installed inside the nozzle. When the extinguishing agent is introduced into the nozzle, it is broken once through the extinguishing agent breakage holes. After passing through the inner side of the isolation ring, the extinguishing agent impacts the extinguishing agent breakage chamber for secondary breakage and aggregation. Multiple breakages cause the extinguishing agent particles or droplets to break and refine, dispersing them into smaller units, increasing the contact area between the extinguishing agent and the fire source, and also improving the uniformity of the extinguishing agent coverage on the fire source surface. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2This is a schematic diagram of the internal structure of the outer shell in this utility model;

[0021] Figure 3 This is a side view of the overall structure of the device in this utility model;

[0022] Figure 4 This is a schematic diagram of the overall structure of the ratchet in this utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of the partition plate of this utility model.

[0024] In the diagram: 1. Nozzle body; 101. Outer shell; 102. Threaded head; 103. Partition plate; 104. Extinguishing agent breakage hole; 105. Isolation ring; 106. Extinguishing agent breakage chamber; 107. Extinguishing agent output hole; 108. Pawl; 109. Torsion spring; 110. Ratchet; 111. Baffle plate; 2. Locking mechanism; 201. Movable plate; 202. Pull ring; 203. Limit block; 204. Spring. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-5 As shown, a fire extinguisher atomizing nozzle structure includes a nozzle body 1, with a locking mechanism 2 disposed on the outer side of the nozzle body 1; the nozzle body 1 includes a housing 101, with a plurality of extinguishing agent output holes 107 opened on one side of the inner wall of the housing 101, and each extinguishing agent output hole 107 is arranged in a ring at equal intervals around the central axis of the housing 101; wherein, one end of each extinguishing agent output hole 107 extends to the surface of the housing 101, and a ratchet 110 is rotatably connected to the surface of the housing 101 and located inside each extinguishing agent output hole 107, and a baffle 111 is fixedly connected to the outer wall of the ratchet 110 near each extinguishing agent output hole 107, such as Figure 1 As shown, when the ratchet 110 drives the baffle 111 to rotate, the baffle 111 moves to the port of the extinguishing agent outlet 107 and blocks it;

[0027] A pawl 108 is rotatably connected to the surface of the housing 101 and to one end inside the ratchet 110. A torsion spring 109 is fixedly connected to the pawl 108 at the pivot point. The other end of the torsion spring 109 is fixedly connected to the housing 101. One end of the outer wall of the pawl 108 abuts against the inner side of the ratchet 110. Figure 1As shown, when the ratchet 110 rotates, the inner side pushes the pawl 108 to rotate, and the torsion spring 109 drives the pawl 108 to reset after rotation;

[0028] The locking mechanism 2 includes a movable plate 201, the side of which is slidably connected to the middle of the outer casing 101. A pull ring 202 is fixedly connected to the side of the movable plate 201 away from the outer casing 101, and a spring 204 is fixedly connected to the middle of the other side of the movable plate 201. The end of the spring 204 is also fixedly connected to the inner wall of the outer casing 101. Figure 2 As shown, spring 204 pulls movable plate 201 closer to outer shell 101;

[0029] A limiting block 203 is also fixedly connected to one end of the side wall of the movable plate 201 near the pawl 108. The end side of the limiting block 203 abuts against both sides of the outer wall of the pawl 108. Figure 1 As shown, the limiting block 203 abuts against the side of the pawl 108, so that the pawl 108 cannot rotate;

[0030] A threaded head 102 is fixedly installed on the side of the outer casing 101 away from the movable plate 201. A partition plate 103 is also embedded and fixed on the inner wall of the outer casing 101 near the threaded head 102. Several extinguishing agent breakage holes 104 are formed on the surface of the partition plate 103, and each extinguishing agent breakage hole 104 is arranged in a ring at equal intervals around the center of the partition plate 103. An isolation ring 105 is fixedly connected to the center of the inner wall of the outer casing 101. An extinguishing agent breakage chamber 106 is formed on the inner wall of the outer casing 101 between the isolation ring 105 and each extinguishing agent outlet hole 107. The center of the inner wall of the isolation ring 105 is hollowed out, and the inner diameter of the isolation ring 105 gradually decreases in the direction away from the partition plate 103. Figure 2 As shown, the extinguishing agent can enter the extinguishing agent breaking chamber 106 through the hollowed-out middle of the isolation ring 105.

[0031] The working principle of this utility model:

[0032] When adjusting the size of the extinguishing agent outlet 107, pull the ring 202 away from the outer casing 101. The movable plate 201 moves and drives the spring 204 to stretch. During this process, the limit block 203 and the pawl 108 are separated. At this time, the limit block 203 is unlocked and can be rotated. Then, rotate the ratchet 110 and drive the side baffle 111 to block the extinguishing agent outlet 107, thereby adjusting the actual size of the extinguishing agent outlet 107 port.

[0033] After the threaded head 102 is screwed and fixed to the fire extinguisher outlet, the extinguishing agent is discharged and passes through the extinguishing agent breakage hole 104 for single breakage. After impacting and passing through the inner side of the isolation ring 105, the extinguishing agent impacts the inside of the extinguishing agent breakage chamber 106 for secondary breakage and convergence. Multiple breakages cause the extinguishing agent particles or droplets to break and refine, dispersing them into smaller units. Finally, the broken extinguishing agent is sprayed out through the extinguishing agent outlet hole 107.

[0034] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An atomizing nozzle structure of a fire extinguisher, comprising a nozzle body (1), the outer side of the nozzle body (1) is provided with a locking mechanism (2); characterized in that the nozzle body (1) comprises an outer shell (101), a plurality of fire extinguishing agent output holes (107) are formed on one side of the inner wall of the outer shell (101), and each fire extinguishing agent output hole (107) is arranged in a ring shape around the central axis of the outer shell (101) at equal intervals; wherein one end of each fire extinguishing agent output hole (107) extends to the surface of the outer shell (101), and a ratchet wheel (110) is rotatably connected to the surface of the outer shell (101) and located inside each fire extinguishing agent output hole (107), and a baffle (111) is fixedly connected to the outer side wall of the ratchet wheel (110) near each fire extinguishing agent output hole (107).

2. The atomizing nozzle structure of a fire extinguisher according to claim 1, wherein a pawl (108) is rotatably connected to one end of the inner side of the ratchet wheel (110) on the surface of the outer shell (101), the pawl (108) is fixedly connected to the pivot with a torsional spring (109), the other end of the torsional spring (109) is fixedly connected with the outer shell (101), and the outer wall of one end of the pawl (108) abuts against the inner side of the ratchet wheel (110).

3. The atomizing nozzle structure of a fire extinguisher according to claim 2, wherein the locking mechanism (2) comprises a movable plate (201), the movable plate (201) is slidably connected to the middle part of the outer shell (101) on the side edge, a pull ring (202) is fixedly connected to the side of the movable plate (201) away from the outer shell (101), a spring (204) is fixedly connected to the middle part of the other side of the movable plate (201), and the end of the spring (204) is also fixedly connected to the inner wall of the outer shell (101).

4. The atomizing nozzle structure of a fire extinguisher according to claim 3, wherein a limiting block (203) is also fixedly connected to one end of the side wall of the movable plate (201) near the pawl (108), and the end of the limiting block (203) abuts against both sides of the outer wall of the pawl (108).

5. The atomizing nozzle structure of a fire extinguisher according to claim 4, wherein a threaded head (102) is fixedly installed on the side of the outer shell (101) away from the movable plate (201), a partition plate (103) is inlaidly fixed to one end of the inner wall of the outer shell (101) near the threaded head (102), a plurality of fire extinguishing agent breaking holes (104) are formed on the surface of the partition plate (103), and each fire extinguishing agent breaking hole (104) is arranged in a ring shape around the middle part of the partition plate (103) at equal intervals.

6. The atomizing nozzle structure of a fire extinguisher according to claim 5, wherein an isolation ring (105) is fixedly connected to the middle part of the inner wall of the outer shell (101), and a fire extinguishing agent breaking cavity (106) is formed between the isolation ring (105) and each fire extinguishing agent output hole (107) on the inner wall of the outer shell (101).

7. The atomizing nozzle structure of a fire extinguisher according to claim 6, wherein the middle part of the inner wall of the isolation ring (105) is hollow, and the inner diameter of the isolation ring (105) gradually decreases away from the partition plate (103).

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