Novel spray nozzle

Abstract

The utility model relates to the technical field of fire-fighting sprayers, in particular to a novel water mist sprayer which comprises a main body, and a low-pressure water mist assembly is arranged at the top of the main body. The motor is used for driving the bevel gear to be meshed with the first fluted disc, so that the staggered holes and the adjusting holes are automatically staggered to discharge water flow, the water flow discharge form is automatically controlled, various spray heads are matched with the water mist type spray head, the flow coefficient is small, the water consumption is small, and water resources are saved; the low-pressure pump and the low-pressure gas cylinder are used for discharging low-pressure water mist to the spray head, complex pipelines are not needed, the working pressure of the device is low, the diameter of mist drops is relatively large, the fire extinguishing efficiency of extinguishing solid fire is effectively improved, the use cost is reduced, the application range of a water mist system is enlarged, the spray head releases the low-pressure water mist, and total-flooding type low-pressure water mist can be formed.

Description

Technical Field

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

[0002] Sprinklers are widely used in the field of fire protection. All kinds of fixed sprinkler fire extinguishing devices use sprinkler water as the standard configuration of fire extinguishing devices. Fire sprinkler heads are used in fire sprinkler systems. When a fire occurs, water is sprayed through the sprinkler splash plate to extinguish the fire. They are divided into pendent sprinkler heads, upright sprinkler heads, ordinary sprinkler heads, side wall sprinkler heads, etc.

[0003] Authorization announcement number CN208319765U discloses a fire-fighting water mist nozzle. This patented technology has a simple and reasonable structural design of the fire-fighting water mist nozzle and good atomization performance. It can atomize the fire-fighting water (liquid) and spray it on the area where fire extinguishing is required under low pressure (0.3Mpa~2.0Mpa). The purpose of quickly extinguishing the flame is achieved through the oxygen isolation and cooling effect of dense water mist. The fire-fighting time is shortened and the fire-fighting effect is good. At the same time, the diameter of the sprayed water droplets is small, which can greatly reduce water consumption. The invention relates to a water mist type nozzle which is easy to install and use, and can meet the requirements of water spraying volume and atomization in different places by adjusting the structural dimensions of the nozzle body and the flower core. The water mist type nozzle has broad application prospects. However, the current application of fine water mist in the field of fire protection is mainly based on fixed fine water mist fire extinguishing systems and mobile fine water mist fire extinguishing devices, which require the fine water mist fire extinguishing devices to be equipped with high-pressure driving devices such as high-pressure pumps or high-pressure gas cylinders, and the pipelines are high-pressure pipelines, which greatly increases the use cost of the fine water mist fire extinguishing devices. At the same time, due to the small size of water droplets atomized by the high-pressure fine water mist nozzle, the efficiency of extinguishing solid fires is low. Therefore, a new type of water mist nozzle is needed to improve the above problems. Utility Model Content

[0004] In order to solve the problem that the current application of fine water mist in the field of fire protection is mainly based on fixed fine water mist fire extinguishing systems and mobile fine water mist fire extinguishing devices in the existing solutions, the fine water mist fire extinguishing device is required to be equipped with a high-pressure driving device such as a high-pressure pump or a high-pressure gas cylinder, and the pipeline is a high-pressure pipeline, which greatly increases the use cost of the fine water mist fire extinguishing device. At the same time, due to the small size of water droplets after atomization by the high-pressure fine water mist nozzle, the efficiency of extinguishing solid fires is low. The purpose of the utility model is to provide a new type of water mist nozzle to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A novel water mist nozzle comprises a main body, the top of which is provided with a low-pressure water mist assembly;

[0007] The main body comprises a containing cavity, a device bin is fixedly connected to the side of the containing cavity, a motor is installed inside the device bin, an actuator is fixedly connected to the side of the motor, a bevel gear is fixedly connected to the output end of the motor, a first toothed disc is meshedly connected to the side of the bevel gear, a spraying hole is opened inside the first toothed disc, and a second toothed disc is provided in the containing cavity, and a dislocation hole is opened inside the first toothed disc;

[0008] The low-pressure water mist assembly comprises an input pipe, and a low-pressure pump and a low-pressure gas cylinder are fixedly connected to the side of the input pipe.

[0009] As a preferred solution of the utility model, an adjustment hole is opened inside the second toothed disc, and a plurality of the offset holes and the adjustment holes are provided.

[0010] As a preferred solution of the utility model, the bottom of the second toothed disc is fixedly connected to a chassis, and a spraying hole is opened inside the chassis, and a plurality of spraying holes are opened.

[0011] As a preferred solution of the utility model, water mist holes and fine holes are provided at the bottom of the accommodating cavity, and a plurality of the water mist holes and fine holes are provided.

[0012] As a preferred solution of the utility model, a connection bin is fixedly connected inside the accommodating cavity, and a built-in ring is fixedly connected inside the connection bin.

[0013] As a preferred solution of the utility model, a rubber sealing ring is arranged at the bottom of the built-in ring, and a filter screen is arranged inside the rubber sealing ring.

[0014] As a preferred solution of the utility model, a connecting disc sleeve is provided on the top of the input pipe, and a delivery pipe is fixedly connected to the top of the connecting disc sleeve.

[0015] As a preferred solution of the utility model, an external pipe is fixedly connected to the side of the delivery pipe, and an overflow bin is fixedly connected to the side of the external pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In the utility model, the motor is used to drive the bevel gear and the first toothed disc to mesh, so that the offset holes and the adjustment holes are automatically offset to discharge water, so as to automatically control the water discharge form. A variety of nozzles are matched with water mist nozzles to have a small flow coefficient, small water consumption, and save water resources.

[0018] 2. In the utility model, low-pressure water mist is discharged from the nozzle by utilizing a low-pressure pump and a low-pressure gas cylinder. No complicated piping is required, the working pressure of the device is low pressure, and the diameter of the droplets is relatively large, which effectively improves the fire extinguishing efficiency of solid fire, reduces the cost of use, and expands the application scope of the fine water mist system. The nozzle releases low-pressure water mist to form a fully submerged low-pressure water mist. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the internal structure of the accommodating cavity of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the low-pressure water mist assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the orifice plate assembly of the utility model.

[0023] In the figure: 1. main body; 101. accommodating chamber; 102. device compartment; 103. actuator; 104. motor; 105. bevel gear; 106. first toothed disc; 107. filter screen; 108. rubber sealing ring; 109. built-in ring; 110. connecting compartment; 111. offset hole; 112. second toothed disc; 113. adjustment hole; 114. chassis; 115. spray hole; 116. water mist hole; 117. fine hole; 2. low-pressure water mist assembly; 201. input pipe; 202. low-pressure pump; 203. low-pressure gas cylinder; 204. connecting disc sleeve; 205. delivery pipe; 206. external pipe; 207. overflow compartment. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] Example: See Figure 1-Figure 4 A novel water mist nozzle is shown, with a main body 1, and a low-pressure water mist assembly 2 is arranged on the top of the main body 1;

[0026] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the main body 1 includes a receiving chamber 101, a device chamber 102 is fixedly connected to the side of the receiving chamber 101, a motor 104 is installed inside the device chamber 102, an actuator 103 is fixedly connected to the side of the motor 104, a bevel gear 105 is fixedly connected to the output end of the motor 104, a first toothed disc 106 is meshedly connected to the side of the bevel gear 105, a spray hole 115 is opened inside the first toothed disc 106, and the receiving chamber 101 is provided with a second toothed disc 112, and the first toothed disc 112 is fixedly connected to the output end of the motor 104. An offset hole 111 is provided inside 106, and the low-pressure water mist assembly 2 includes an input pipe 201, and a low-pressure pump 202 and a low-pressure gas cylinder 203 are fixedly connected to the side of the input pipe 201. The motor 104 drives the bevel gear 105 and the first toothed disc 106 to engage, so that the offset hole 111 and the adjustment hole 113 are automatically offset to discharge water, so as to automatically control the water discharge form. A variety of nozzles are combined with water mist nozzles to have a small flow coefficient, low water consumption, and save water resources.

[0027] Among them, an adjustment hole 113 is opened inside the second toothed disc 112, and a plurality of offset holes 111 and adjustment holes 113 are provided. The bottom of the second toothed disc 112 is fixedly connected to a chassis 114, and a spray hole 115 is opened inside the chassis 114, and a plurality of spray holes 115 are opened. A water mist hole 116 and a fine hole 117 are opened at the bottom of the accommodating chamber 101, and a plurality of water mist holes 116 and fine holes 117 are opened. A low-pressure pump 202 and a low-pressure gas cylinder 203 are used to discharge low-pressure water mist from the nozzle, and no complicated pipelines are required. The working pressure of the device is low pressure, and the droplet diameter is relatively large, which effectively improves the fire extinguishing efficiency of solid fire, reduces the use cost, and expands the application scope of the fine water mist system. The nozzle releases low-pressure water mist to form a fully submerged low-pressure water mist.

[0028] In this embodiment, refer to Figure 1 , Figure 2 and Figure 3 As shown, a connecting bin 110 is fixedly connected to the interior of the accommodating chamber 101, an internal ring 109 is fixedly connected to the interior of the connecting bin 110, a rubber sealing ring 108 is arranged at the bottom of the internal ring 109, a filter screen 107 is arranged inside the rubber sealing ring 108, a connecting disc sleeve 204 is arranged on the top of the input pipe 201, a delivery pipe 205 is fixedly connected to the top of the connecting disc sleeve 204, an external pipe 206 is fixedly connected to the side of the delivery pipe 205, an overflow bin 207 is fixedly connected to the side of the external pipe 206, the overflow bin 207 can prevent the accommodating chamber 101 from bursting due to excessive water pressure, the rubber sealing ring 108 has excellent sealing performance, can effectively prevent the leakage of liquid, gas and dust, it can fill the tiny defects of the sealing surface to ensure that the sealing effect is more reliable, the rubber sealing ring 108 has good elasticity and deformation ability, can adapt to sealing surfaces of different shapes and sizes, thereby ensuring the tightness and stability of the seal.

[0029] In the present scheme, a new type of water mist nozzle enters water from the delivery pipe 205 when in use, and the excess water can flow into the overflow bin 207 through the external pipe 206 to prevent the water pressure from being too high and bursting the accommodating chamber 101. After that, the low-pressure pump 202 and the low-pressure gas cylinder 203 work together to form low-pressure water mist into the flowing water. During this period, the actuator 103 can also be used to control the drive of the motor 104 to make the bevel gear 105 and the first toothed disc 106 mesh, so that the offset hole 111 and the adjustment hole 113 are offset and adjusted, so as to control the water flow or water mist to flow out from any suitable hole of the spray hole 115, the water mist hole 116 and the fine hole 117.

[0030] 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 novel water mist nozzle, comprising a main body (1), characterized in that: A low-pressure water mist assembly (2) is provided on the top of the main body (1); The main body (1) comprises a containing chamber (101), a device chamber (102) is fixedly connected to the side of the containing chamber (101), a motor (104) is installed inside the device chamber (102), an actuator (103) is fixedly connected to the side of the motor (104), an output end of the motor (104) is fixedly connected to a bevel gear (105), a side of the bevel gear (105) is meshingly connected to a first toothed disc (106), a spraying hole (115) is provided inside the first toothed disc (106), and a second toothed disc (112) is provided inside the first toothed disc (106); The low-pressure water mist assembly (2) comprises an input pipe (201), and a low-pressure pump (202) and a low-pressure gas cylinder (203) are fixedly connected to the side of the input pipe (201).

2. A novel water mist nozzle according to claim 1, characterized in that: An adjustment hole (113) is provided inside the second toothed disc (112), and a plurality of the offset holes (111) and the adjustment holes (113) are provided.

3. A novel water mist nozzle according to claim 1, characterized in that: The bottom of the second toothed disc (112) is fixedly connected to a base plate (114), and a spraying hole (115) is provided inside the base plate (114), and a plurality of the spraying holes (115) are provided.

4. A novel water mist nozzle according to claim 1, characterized in that: The bottom of the accommodating cavity (101) is provided with a water mist hole (116) and a fine hole (117), and a plurality of the water mist holes (116) and the fine hole (117) are provided.

5. The novel water mist nozzle according to claim 1 is characterized in that: A connection chamber (110) is fixedly connected inside the accommodating cavity (101), and a built-in ring (109) is fixedly connected inside the connection chamber (110).

6. A new type of water mist nozzle according to claim 5, characterized in that: A rubber sealing ring (108) is arranged at the bottom of the built-in ring (109), and a filter screen (107) is arranged inside the rubber sealing ring (108).

7. A novel water mist nozzle according to claim 1, characterized in that: A connection disc sleeve (204) is provided at the top of the input pipe (201), and a delivery pipe (205) is fixedly connected to the top of the connection disc sleeve (204).

8. A new type of water mist nozzle according to claim 7, characterized in that: An external pipe (206) is fixedly connected to the side of the delivery pipe (205), and an overflow bin (207) is fixedly connected to the side of the external pipe (206).

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