A nozzle for a kitchen fire extinguishing apparatus

Abstract

The utility model discloses a kind of spray heads for kitchen fire extinguishing equipment belong to kitchen fire extinguishing field, including threaded connector and thermosensitive glass rod, the lower surface of threaded connector is fixedly installed with connecting rod, the outer surface of fixed sleeve is fixedly installed with diffusion plate, the lower surface of threaded connector is provided with a first diffusion mechanism, the lower surface of diffusion plate is provided with secondary diffusion mechanism;Through the cooperation of above each device, by setting first diffusion mechanism, secondary diffusion mechanism and diffusion plate, the three diffusion functions of spray head are realized, the fire extinguishing agent sprayed by spray head can be diffused at different heights, so that spray head can be sprayed at different areas, improve the comprehensiveness of spray head spray area, so as to ensure the fire extinguishing efficiency of kitchen fire extinguishing device, by beating plate to beat fire extinguishing agent, further improve the atomization effect of fire extinguishing agent, so as to improve the fire extinguishing effect of kitchen fire extinguishing device.

Description

Technical Field

[0001] This utility model relates to the field of kitchen fire extinguishing technology, specifically a nozzle for kitchen fire extinguishing equipment. Background Technology

[0002] Kitchen fire extinguishing equipment is a specialized fire protection system designed to address the fire risk in high-humidity and high-temperature environments. It mainly consists of extinguishing agent storage containers, propellant gas containers, pipelines, nozzles, valves, detection components, and control devices, and can automatically detect fires and extinguish them.

[0003] The sprinkler head for kitchen fire extinguishing equipment is the core water spraying device of the kitchen fire sprinkler system. It achieves initial fire control through automatic water spraying. The device consists of a sprinkler, a heat-sensitive glass bulb, a water pipe plug, and other components. The heat-sensitive glass bulb is filled with kerosene or ether solution, and different colors correspond to specific operating temperatures.

[0004] However, most sprinklers currently available only have one water sprayer, which limits the overall spraying area of ​​the sprinkler. Since the water sprayer sprays the extinguishing agent outwards from itself, the extinguishing agent cannot reach the bottom of the water sprayer, thus limiting the spraying position of the sprinkler and affecting the fire extinguishing effect of the fire extinguishing equipment.

[0005] Therefore, this utility model provides a nozzle for a kitchen fire extinguishing device to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a nozzle for a kitchen fire extinguishing device, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A nozzle for a kitchen fire extinguishing device includes a threaded connector and a heat-sensitive glass rod. The threaded connector has a through hole inside. A fixing rod is fixedly installed on the lower surface of the threaded connector. A fixing sleeve is fixedly installed at one end of the fixing rod. A diffuser plate is fixedly installed on the outer surface of the fixing sleeve. A primary diffuser mechanism is provided on the lower surface of the threaded connector. A secondary diffuser mechanism is provided on the lower surface of the diffuser plate.

[0011] The primary diffusion mechanism includes a plug, the outer surface of which is fitted with the inner wall of the slot of the threaded connector. The plug has a through-hole drainage groove inside, which is shaped like a truncated cone to increase the flow velocity of the extinguishing agent in the drainage groove, thereby increasing the impact velocity of the extinguishing agent.

[0012] As a preferred technical solution of this application, a slider is fixedly installed on the lower surface of the plug, the slider is located below the threaded connector, and support rods are symmetrically fixedly installed on the lower surface of the threaded connector.

[0013] As a preferred technical solution of this application, a groove is provided on the side wall of the support rod, and the inner wall of the groove is slidably connected to the outer surface of the slider, which limits the stroke of the plug and thus limits the height of the plug.

[0014] As a preferred technical solution of this application, the secondary diffusion mechanism includes a rotating rod, a positioning sleeve is rotatably mounted on the outer surface of the rotating rod, a connecting rod is fixedly mounted on the outer surface of the positioning sleeve, and one end of the connecting rod is fixedly connected to the lower surface of the diffusion plate.

[0015] As a preferred technical solution of this application, one end of the rotating rod extends into the interior of the fixed sleeve, and a swirl vane is fixedly installed on the outer surface of the rotating rod. The swirl vane is located inside the fixed sleeve and has a certain tilt angle. Its function is to tangentially divert the high-pressure extinguishing agent flowing in, so that it generates high-speed rotational motion.

[0016] As a preferred technical solution of this application, a diversion plate is fixedly installed at the other end of the rotating rod. A plurality of holes are provided on the inner wall of the diversion plate, and a plurality of striking plates are fixedly installed on the upper surface of the diversion plate to strike the extinguishing agent impacting the diversion plate, thereby increasing the atomization effect of the extinguishing agent.

[0017] As a preferred technical solution of this application, a sealing plate is fixedly installed at one end of the thermal glass rod. The outer surface of the sealing plate is in contact with the inner wall of the drainage groove. Part of the sealing plate supports the plug. The thermal glass rod is prior art, so it will not be described in detail.

[0018] As a preferred technical solution of this application, the other end of the thermal glass rod extends into the interior of the fixed sleeve, and the other end of the thermal glass rod contacts one end of the rotating rod but the two are not connected.

[0019] (III) Beneficial Effects

[0020] By setting up a primary diffusion mechanism, a secondary diffusion mechanism, and a diffusion plate, the nozzle achieves a three-stage diffusion function, enabling the extinguishing agent sprayed from the nozzle to diffuse at different heights. This allows the nozzle to spray over different areas, improving the comprehensiveness of the spray area and ensuring the extinguishing efficiency of the kitchen fire extinguishing system. Furthermore, by using a tapping plate to tap the extinguishing agent, the atomization effect of the extinguishing agent is further improved, thereby enhancing the extinguishing effect of the kitchen fire extinguishing system. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a nozzle for a kitchen fire extinguishing device;

[0022] Figure 2 This is an exploded view of a nozzle for a kitchen fire extinguishing system.

[0023] Figure 3 A schematic diagram of the cross-sectional structure of a nozzle for a kitchen fire extinguishing device;

[0024] Figure 4 This is an exploded structural diagram of the threaded connector and the heat-sensitive glass rod in a nozzle of a kitchen fire extinguishing device.

[0025] Figure 5 For a type of sprinkler head for kitchen fire extinguishing equipment Figure 4 A magnified structural diagram of point A in the middle.

[0026] In the picture:

[0027] 1. Threaded connector; 2. Fixing rod; 3. Fixing sleeve; 4. Diffuser plate; 5. Primary diffusion mechanism; 51. Plug; 52. Drainage channel; 53. Support rod; 54. Slide groove; 55. Sliding block; 6. Thermosensitive glass rod; 7. Secondary diffusion mechanism; 71. Rotating rod; 72. Positioning sleeve; 73. Connecting rod; 74. Swirl blade; 75. Diverter plate; 76. Beating plate; 8. Sealing plate. Detailed Implementation

[0028] 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.

[0029] This utility model provides a nozzle for a kitchen fire extinguishing device, such as... Figures 1-5 As shown, the nozzle for a kitchen fire extinguishing device includes a threaded connector 1 and a heat-sensitive glass rod 6. The threaded connector 1 has a through hole inside. A fixing rod 2 is fixedly installed on the lower surface of the threaded connector 1. A fixing sleeve 3 is fixedly installed at one end of the fixing rod 2. A diffuser plate 4 is fixedly installed on the outer surface of the fixing sleeve 3. A primary diffuser mechanism 5 is provided on the lower surface of the threaded connector 1. A secondary diffuser mechanism 7 is provided on the lower surface of the diffuser plate 4.

[0030] The primary diffusion mechanism 5 includes a plug 51, the outer surface of which is fitted with the inner wall of the slot of the threaded connector 1, and a through drainage groove 52 is provided inside the plug 51, which is shaped like a truncated cone.

[0031] A slider 55 is fixedly installed on the lower surface of the plug 51. The slider 55 is located below the threaded connector 1. Support rods 53 are symmetrically fixedly installed on the lower surface of the threaded connector 1.

[0032] A groove 54 is provided on the side wall of the support rod 53, and the inner wall of the groove 54 is slidably connected to the outer surface of the slider 55.

[0033] Specifically, by setting up a primary diffusion mechanism 5, the extinguishing agent discharged from the threaded connector 1 is diffused in all directions, increasing the spray area of ​​the extinguishing agent. After the kitchen catches fire, as the flame temperature rises, when the flame temperature reaches the highest temperature of the heat-sensitive glass rod 6, the heat-sensitive glass rod 6 will shatter. At this time, after the plug 51 loses the support of the heat-sensitive glass rod 6, under the impact of the extinguishing agent, the plug 51 will move downwards from the threaded connector 1 through the slider 55 under the limit of the sliding groove 54 on the support rod 53. At this time, the extinguishing agent will diffuse in all directions from the plug 51 after impacting the threaded connector 1. Some of the extinguishing agent will also impact the diffuser plate 4 through the drain trough 52. After being blocked by the diffuser plate 4, the extinguishing agent will also diffuse, thereby achieving spraying at different height positions of the nozzle, thereby increasing the spray area of ​​the nozzle.

[0034] The secondary diffusion mechanism 7 includes a rotating rod 71, a positioning sleeve 72 is rotatably mounted on the outer surface of the rotating rod 71, a connecting rod 73 is fixedly mounted on the outer surface of the positioning sleeve 72, and one end of the connecting rod 73 is fixedly connected to the lower surface of the diffusion plate 4.

[0035] One end of the rotating rod 71 extends into the interior of the fixed sleeve 3, and a swirl vane 74 is fixedly installed on the outer surface of the rotating rod 71. The swirl vane 74 is located inside the fixed sleeve 3.

[0036] A diverter plate 75 is fixedly installed at the other end of the rotating rod 71. Several holes are provided on the inner wall of the diverter plate 75, and several beaters 76 are fixedly installed on the upper surface of the diverter plate 75.

[0037] A sealing plate 8 is fixedly installed at one end of the thermal glass rod 6. The outer surface of the sealing plate 8 is in contact with the inner wall of the drainage groove 52, and part of the sealing plate 8 provides support for the plug 51.

[0038] The other end of the thermal glass rod 6 extends into the interior of the fixed sleeve 3, and the other end of the thermal glass rod 6 contacts one end of the rotating rod 71 but the two are not connected.

[0039] Specifically, by setting a two-stage diffusion mechanism 7, the extinguishing agent is diffused three times, thereby achieving multi-stage spraying from the nozzle and ensuring the extinguishing effect on flames at different locations. After some of the extinguishing agent comes into contact with the diffuser plate 4, some of the extinguishing agent will impact the fixed sleeve 3. At this time, after impacting the swirl vane 74, the extinguishing agent will pass through the interior of the fixed sleeve 3. When passing through the swirl vane 74, the extinguishing agent will be tangentially diverted, thereby driving the extinguishing agent and the rotating rod 71 to swirl. The rotation accelerates the extinguishing agent. After the extinguishing agent impacts the diversion plate 75, the diversion plate 75 is rotated by the rotating rod 71. At this time, the striking plate 76 on the diversion plate 75 will strike the extinguishing agent, increasing the spray area of ​​the extinguishing agent. At the same time, a small part of the extinguishing agent flows through the holes to the bottom of the diversion plate 75 to extinguish the flame below the diversion plate 75. This realizes the three-stage spray of the nozzle, so that different areas can be sprayed according to different heights, thereby ensuring the comprehensiveness of the nozzle spray.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nozzle for a kitchen fire extinguishing device, comprising a threaded connector (1) and a heat-sensitive glass rod (6), characterized in that: The threaded connector (1) has a through hole inside. A fixing rod (2) is fixedly installed on the lower surface of the threaded connector (1). A fixing sleeve (3) is fixedly installed at one end of the fixing rod (2). A diffuser plate (4) is fixedly installed on the outer surface of the fixing sleeve (3). A primary diffuser mechanism (5) is provided on the lower surface of the threaded connector (1). A secondary diffuser mechanism (7) is provided on the lower surface of the diffuser plate (4). The primary diffusion mechanism (5) includes a plug (51), the outer surface of which is fitted with the inner wall of the slot of the threaded connector (1), and the interior of the plug (51) is provided with a through drainage groove (52), which is shaped like a truncated cone.

2. The nozzle for a kitchen fire extinguishing device according to claim 1, characterized in that: A slider (55) is fixedly installed on the lower surface of the plug (51). The slider (55) is located below the threaded connector (1). Support rods (53) are symmetrically fixedly installed on the lower surface of the threaded connector (1).

3. A nozzle for a kitchen fire extinguishing device according to claim 2, characterized in that: The support rod (53) has a groove (54) on its side wall, and the inner wall of the groove (54) is slidably connected to the outer surface of the slider (55).

4. A nozzle for a kitchen fire extinguishing device according to claim 3, characterized in that: The secondary diffusion mechanism (7) includes a rotating rod (71), a positioning sleeve (72) is rotatably mounted on the outer surface of the rotating rod (71), a connecting rod (73) is fixedly mounted on the outer surface of the positioning sleeve (72), and one end of the connecting rod (73) is fixedly connected to the lower surface of the diffusion plate (4).

5. A nozzle for a kitchen fire extinguishing device according to claim 4, characterized in that: One end of the rotating rod (71) extends into the interior of the fixed sleeve (3), and a swirl blade (74) is fixedly installed on the outer surface of the rotating rod (71), with the swirl blade (74) located inside the fixed sleeve (3).

6. A nozzle for a kitchen fire extinguishing device according to claim 5, characterized in that: A diverter plate (75) is fixedly installed at the other end of the rotating rod (71). A plurality of holes are provided on the inner wall of the diverter plate (75), and a plurality of tapping plates (76) are fixedly installed on the upper surface of the diverter plate (75).

7. A nozzle for a kitchen fire extinguishing device according to claim 1, characterized in that: A sealing plate (8) is fixedly installed at one end of the thermal glass rod (6). The outer surface of the sealing plate (8) is in contact with the inner wall of the drainage groove (52). Part of the sealing plate (8) supports the plug (51).

8. A nozzle for a kitchen fire extinguishing device according to claim 1, characterized in that: The other end of the thermal glass rod (6) extends into the interior of the fixed sleeve (3), and the other end of the thermal glass rod (6) contacts one end of the rotating rod (71) but the two are not connected.

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