Fire-fighting water mist nozzle

Abstract

The utility model relates to the technical field of fire-fighting sprayers, in particular to a fire-fighting water mist sprayer which comprises a frame, a water splashing disc, a fastening screw, a water inlet pipe, a sealing element, an actuating mechanism and a thermosensitive element, the water splashing disc, the fastening screw and the water inlet pipe are all arranged on the frame, and the actuating mechanism and the thermosensitive element form a triangular supporting structure. The triangular supporting structure is arranged between the water splashing disc and the water inlet pipe, and the sealing element is arranged at the water outlet end of the water inlet pipe through the triangular supporting structure. The water disturbing disc is movably arranged between the water splashing disc and the water inlet pipe through a fastening screw; the water disturbing disc is composed of a plurality of water disturbing plates, and the water disturbing plates are distributed around the axis of the fastening screw. And at least part of the upper end part of the water disturbing plate is of an inclined surface structure. By adopting the fire extinguishing nozzle, the spraying area of the nozzle can be increased, and the fire extinguishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire sprinkler heads, in particular to a fire sprinkler head. Background Art

[0002] Fire water mist nozzle is a nozzle that controls the fire at the fire scene by spraying. Its working principle is to use a high-pressure pump or gas to push water flow, spray water mist from the nozzle, and push the water mist to the area where the fire needs to be extinguished through compressed air or gas. The water mist forms an atomized area through the nozzle, which effectively controls the fire, reduces the temperature, and can prevent the spread of smoke and harmful gases. However, the spraying area of ​​existing fire sprinklers is limited, resulting in the need to install more fire sprinklers to complete the coverage of the spraying area. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a fire water mist nozzle, which can increase the spraying area of ​​the nozzle and improve the fire extinguishing efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-fighting water mist nozzle, comprising a frame, a water splash plate, a fastening screw, a water inlet pipe, a sealing element, an actuating mechanism, and a thermistor. The water splash plate, the fastening screw, and the water inlet pipe are all arranged on the frame, the actuating mechanism and the thermistor form a triangular support structure, the triangular support structure is arranged between the water splash plate and the water inlet pipe, and the sealing element is arranged at the water outlet end of the water inlet pipe through the triangular support structure, the nozzle also includes a water spoiler plate; the water spoiler plate is movably arranged between the water splash plate and the water inlet pipe through the fastening screw; the water spoiler plate is composed of a plurality of water spoiler plates, and the plurality of water spoiler plates are distributed around the axis of the fastening screw; the upper end portion of the water spoiler plate is at least partially in an inclined structure.

[0005] Preferably, the water spoiler plate further comprises a rotating drum; a plurality of water spoiler plates are fixedly arranged on the outer circumference of the rotating drum around the axis of the rotating drum; and the rotating drum is movably sleeved on the screw rod of the fastening screw.

[0006] Preferably, the fastening screws include a main screw and a secondary screw; the splash plate is fixed to the frame by the main screw; the screw rod of the secondary screw is fixedly connected to the screw rod of the main screw; and the rotating cylinder is sleeved on the screw rod of the secondary screw.

[0007] Preferably, the inner diameter of the rotating drum is matched with the outer diameter of the screw rod of the auxiliary screw; and the outer diameter of the screw rod of the main screw is larger than the outer diameter of the screw rod of the auxiliary screw.

[0008] Preferably, the screw rod of the auxiliary screw is connected to the screw rod of the main screw through a thread.

[0009] Preferably, the screw rod of the auxiliary screw and the screw rod of the main screw are fixed by welding.

[0010] Preferably, the radius of the water disturbance plate is not greater than the radius of the water splash plate.

[0011] Preferably, there are two water spoiler plates; the two water spoiler plates are evenly distributed around the axis of the rotating drum.

[0012] Preferably, the outer diameter of the rotating drum is the same as the outer diameter of the main screw.

[0013] Compared with the prior art, the beneficial effect of the utility model is that a rotatable water spoiler plate is arranged between the water inlet pipe and the water splash plate, so that when water flows through the water inlet pipe and is sprayed toward the water spoiler plate and the water splash plate, the rotating water spoiler plate can not only shear the water flow, but also throw the water outward, so that the spraying area of ​​the nozzle is greatly increased, and the use of the nozzle can effectively control the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the longitudinal cross section of the nozzle of the utility model;

[0015] Figure 2 This is a bottom view of the nozzle of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection between the fastening screw and the water-disturbing plate of the utility model;

[0017] Figure 4 It is a schematic structural diagram of the water disturbance plate of the utility model.

[0018] In the figure: 1 frame, 2 splash plate, 3 fastening screws, 4 water inlet pipe, 5 water spoiler plate, 6 sealing element, 7 first support rod, 8 second support rod, 9 first connecting plate, 10 second connecting plate, 31 main screw, 32 auxiliary screw, 51 rotating drum, 52 water spoiler plate. DETAILED DESCRIPTION

[0019] The following describes the specific implementation of the utility model in detail in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand how to practice the utility model. Although the utility model is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative, rather than limiting the scope of the utility model.

[0020] Specific embodiment 1: Please refer to Figure 1-4A fire water mist nozzle comprises: a frame 1, a splash plate 2, a fastening screw 3, a water inlet pipe 4, a water disturbance plate 5, a sealing element 6, an action mechanism and a thermal element, wherein the water inlet pipe 4 is arranged at the top of the frame 1, the splash plate 2 and the water disturbance plate 5 are arranged at the lower end of the frame 1 through the fastening screw 3, and the splash plate 2 and the water disturbance plate 5 are both located at the corresponding position on the lower side of the water inlet pipe 4. It can also be understood that the water inlet pipe 4 is coaxial with the splash plate 2, the water disturbance plate 5 and the fastening screw 3. At the same time, the water disturbance plate 5 is located on the upper side of the splash plate 2, and the water disturbance plate 5 is rotatably connected to the fastening screw 3. When in use, the water inlet pipe 4 is connected to the municipal water pipe, and water is sprayed from the water inlet pipe 4 to the splash plate 2, the water disturbance plate 5 and the fastening screw 3 to be atomized and dispersed after impact; further, the action mechanism and the thermal element form a stable triangular support structure, and the sealing element 6 is arranged at the lower end of the water inlet pipe 4 through the triangular support structure to close the water outlet end of the water inlet pipe 4.

[0021] Furthermore, the fastening screw 3 is composed of a main screw 31 and a secondary screw 32. The screw rod of the main screw 31 passes through the splash plate 2 and is fixedly connected with the screw rod of the secondary screw 32. In the present embodiment, the screw rod of the main screw 31 and the screw rod of the secondary screw 32 are connected by threads. During implementation, a blind hole is opened at the axis of the screw rod of the main screw 31, and an internal thread is opened in the blind hole. The screw rod of the secondary screw 32 is opened with an external thread. During connection, the screw rod of the secondary screw 32 extends into the blind hole, and the internal thread cooperates with the external thread to fix the main screw 31 and the secondary screw 32 together. In other embodiments, during assembly, the main screw 31 and the secondary screw 32 may also be plugged in or welded.

[0022] The water spoiler plate 5 is a propeller-like structure consisting of a rotating drum 51 and two water spoiler plates 52. The two water spoiler plates 52 are fixedly arranged on the outer periphery of the rotating drum 51, and the two water spoiler plates 52 are symmetrically distributed around the axis of the rotating drum 51. After assembly, the rotating drum 51 is movably sleeved on the screw of the auxiliary screw 32, and the rotating drum 51 is slidably connected to the main screw 31. It should be noted that the inner diameter of the rotating drum 52 is adapted to the outer diameter of the screw of the auxiliary screw 32; the outer diameter of the screw of the main screw 31 is larger than the outer diameter of the screw of the auxiliary screw 32; the outer diameter of the rotating drum 52 is the same as the outer diameter of the screw of the main screw 31, so as to improve the smoothness after assembly;

[0023] In order to disturb the water flow, the water spoiler 52 is generally fan-shaped and at least part of the upper end of the water spoiler 52 is an inclined structure, that is, the inclined surface of the upper end of the water spoiler 52 needs to face the water outlet of the water inlet pipe 4. After the water flows through the water inlet pipe 4 and is sprayed toward the water spoiler 52, the upper end surface of the water spoiler 52 is unevenly stressed due to the impact of the water flow, and the water spoiler 52 rotates around the axis. The rotating water spoiler 52 can not only shear the water flow, but also throw the water out, thereby greatly increasing the spraying area of ​​the nozzle.

[0024] Furthermore, in this embodiment, the water splash plate 2 plays a major role in spraying in the nozzle, and the water disturbance plate 5 plays an auxiliary role. Therefore, the radius of the water disturbance plate 5 needs to be smaller than the radius of the water splash plate 2.

[0025] The action mechanism includes a first support rod 7 and a second support rod 8, the lower end of the second support rod 8 is crimped with the fastening screw 3, the lower end of the first support rod 7 is crimped with the lower end of the second support rod 8, and the contact point between the second support rod 8 and the fastening screw 3 is not colinear with the contact point between the first support rod 7 and the second support rod 8; the upper end of the first support rod 7 is crimped with the sealing element 6; the upper end of the first support rod 7 and the upper end of the second support rod 8 are connected through a thermal element to maintain the stability of the triangular support structure;

[0026] The thermosensitive element includes a first connecting piece 9, a second connecting piece 10 and a fusible alloy, wherein the first connecting piece 9 and the second connecting piece 10 are fixedly connected as a whole by the fusible alloy, and the first connecting piece 9 is connected to the first support rod 7, and the second connecting piece 10 is connected to the second support rod 8. When a fire occurs, after the ambient temperature rises, the fusible alloy on the thermosensitive element melts, the triangular support structure composed of the first support rod 7, the second support rod 8 and the thermosensitive element is separated, the first support rod 7 is separated from the nozzle, the sealing element loses support and is separated under the action of water pressure, and water flows through the water inlet pipe 4 and is sprayed to the water spoiler 52 and the water splash plate. Due to the impact of the water flow, the upper end surface of the water spoiler 52 is unevenly stressed, and the water spoiler 52 rotates around the axis. The rotating water spoiler 52 can not only shear the water flow, but also throw the water outward, so that the spraying area of ​​the nozzle is greatly increased, and the use of the nozzle can effectively control the fire.

[0027] Through the technical solution, a rotatable water spoiler plate is arranged between the water inlet pipe and the water splash plate, so that when water flows through the water inlet pipe and is sprayed toward the water spoiler plate and the water splash plate, the rotating water spoiler plate can not only shear the water flow, but also throw the water outward, thereby greatly increasing the spraying area of ​​the nozzle, and using the nozzle can effectively control the fire.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire water mist nozzle, comprising a frame (1), a water splash plate (2), a fastening screw (3), a water inlet pipe (4), a sealing element (6), an operating mechanism, and a thermal element, wherein the water splash plate (2), the fastening screw (3), and the water inlet pipe (4) are all arranged on the frame (1), the operating mechanism and the thermal element form a triangular support structure, the triangular support structure is arranged between the water splash plate (2) and the water inlet pipe (4), and the sealing element (6) is arranged at the water outlet end of the water inlet pipe (4) through the triangular support structure, characterized in that: The nozzle further comprises a water disturbance disc (5); the water disturbance disc (5) is movably arranged between the water splash disc (2) and the water inlet pipe (4) via a fastening screw (3); the water disturbance disc (5) is composed of a plurality of water disturbance plates (52), and the plurality of water disturbance plates (52) are distributed around the axis of the fastening screw (3); and the upper end portion of the water disturbance plate (52) is at least partially in an inclined structure.

2. A fire water mist nozzle according to claim 1, characterized in that: The water-disturbing disc (5) further comprises a rotating drum (51); a plurality of water-disturbing plates (52) are fixedly arranged on the outer periphery of the rotating drum (51); and the rotating drum (51) is movably sleeved on the screw rod of the fastening screw (3).

3. A fire water mist nozzle according to claim 2, characterized in that: The fastening screw (3) comprises a main screw (31) and a secondary screw (32); the water splash plate (2) is fixed to the frame (1) via the main screw (31); the screw rod of the secondary screw (32) is fixedly connected to the screw rod of the main screw (31); and the rotating cylinder (51) is sleeved on the screw rod of the secondary screw (32).

4. A fire water mist nozzle according to claim 3, characterized in that: The inner diameter of the rotating cylinder (51) is matched to the outer diameter of the screw rod of the auxiliary screw (32); and the outer diameter of the screw rod of the main screw (31) is greater than the outer diameter of the screw rod of the auxiliary screw (32).

5. A fire water mist nozzle according to claim 3, characterized in that: The screw rod of the auxiliary screw (32) is connected to the screw rod of the main screw (31) via a thread.

6. A fire water mist nozzle according to claim 3, characterized in that: The screw rod of the auxiliary screw (32) and the screw rod of the main screw (31) are fixed by welding.

7. A fire water mist nozzle according to claim 1, characterized in that: The radius of the water disturbance plate (5) is no greater than the radius of the water splash plate (2).

8. A fire water mist nozzle according to claim 2, characterized in that: Two water spoiler plates (52) are provided; the two water spoiler plates (52) are evenly distributed around the axis of the rotating drum (51).

9. A fire water mist nozzle according to claim 4, characterized in that: The outer diameter of the rotating cylinder (51) is the same as the outer diameter of the screw rod of the main screw (31).

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