A combination fire sprinkler

Abstract

The utility model discloses a combined fire sprinkler relates to fire sprinkler technical field, including outer joint, and the outer joint top is equipped with the valve body, and the valve body is integrally formed with the outer joint, and the valve body top is equipped with the sprinkler and the splash cover in proper order respectively, wherein the splash cover is integrally formed with the sprinkler, and the bottom of sprinkler has the connector, and the top of valve body is opened to the radially inner threaded connection mouth of adaptation between the connector, and the threaded connection mouth top edge recessed and fills the sealing washer, and the connector is connected with the valve body through the threaded cooperation, and the side and the top center position of sprinkler all are equipped with the nozzle, and the nozzle is through to the sprinkler cavity, and the application is through the nozzle and the splash cover double design and directs the water flow to different directions and forms parabolic water distribution form, improves the water flow dispersion rate, reduces the water amount reflection to the ceiling, thereby strengthens the effective coverage water amount of actual reaching ground fire source, and effectively improves the fire extinguishing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fire sprinkler technology, and in particular to a combined fire sprinkler. Background Technology

[0002] Fire sprinklers, also known as fire sprinkler heads, are used in fire sprinkler systems. When a fire occurs, water is sprayed out through the sprinkler head's splash plate to extinguish the fire. They are divided into pendant sprinklers, upright sprinklers, ordinary sprinklers, and sidewall sprinklers. Among them, upright sprinklers are suitable for large spaces such as factories and warehouses with a clearance height of 8-12m. They can reduce interference from the frequent operation of large machinery and mobile equipment (such as forklifts) and reduce the risk of mechanical collisions.

[0003] Experiments revealed that, compared to pendant sprinklers, traditional upright sprinklers have a longer water flow path, resulting in an increase of approximately 10%-15% in the working pressure loss of the water pipe system. In addition, about 15%-20% of the water flows directly to the ceiling, while the rest is dispersed unevenly through the traditionally designed splash plate, resulting in a relatively smaller effective amount of water reaching the fire source on the ground, thus affecting the fire extinguishing efficiency. Utility Model Content

[0004] Therefore, in order to solve the above problems and shortcomings, this utility model provides a combined fire sprinkler head, including an external connector, a valve body at the top of the external connector, and the valve body and the external connector are integrally formed. The top of the valve body is provided with a sprinkler head and a splash cover in sequence, wherein the splash cover and the sprinkler head are integrally formed. The bottom end of the sprinkler head has a connector, and a threaded connection port adapted to the connector is opened inward along the top radial direction of the valve body. The top edge of the threaded connection port is concave and filled with a sealing gasket, and the connector head and the valve body are connected by a threaded engagement. Nozzles are opened on the side and the top center of the sprinkler head, and the nozzles penetrate into the sprinkler head cavity.

[0005] Furthermore, the splash cover also includes a splashing assembly and a support pole, the support pole being arranged vertically and symmetrically, and the splashing assembly being embedded and connected to the center of the top of the support pole.

[0006] Furthermore, the water-splashing assembly consists of an outer ring, an inner ring, a water-repellent blade, and a parasol disc. The outer ring is higher than the inner ring and is concentrically positioned with the inner ring. The water-repellent blades are arranged in a circular array around the inner ring and connect the outer ring to the inner ring. The parasol disc is vertically connected to the center of the outer ring.

[0007] Furthermore, the nozzles are evenly distributed on the side of the nozzle head, and each nozzle consists of a circular nozzle and four angular nozzles arranged in a ring around the circular nozzle.

[0008] Furthermore, the inner opening of the angular nozzle is a right-angled triangle with a longer hypotenuse, and the diameter of the circular nozzle is 2 to 4 millimeters.

[0009] Furthermore, the valve body has a certain taper and a pressure testing port is installed on its side.

[0010] Furthermore, the umbrella disc is inverted and has irregular serrations on the edges.

[0011] The beneficial effects of this utility model can be specifically analyzed as follows:

[0012] Advantage 1: This application is an automatic fire sprinkler head controlled by an electromagnetic valve. After the external electromagnetic valve is opened, water enters the valve body, is pressurized, and then released through the nozzles on the sprinkler head. The nozzles guide the water flow in different directions and form a parabolic spray pattern, which improves the water flow dispersion rate and allows most of the water to cover the fire source downwards, reducing the amount of water reflected to the ceiling. This increases the effective amount of water actually reaching the fire source on the ground, thereby improving the fire extinguishing efficiency.

[0013] Advantage 2: This application can effectively reduce the amount of water directly hitting the ceiling to less than 5% by adding a nozzle and a splash cover to places without ceilings, such as factories and warehouses, thereby reducing the water requirements at the top. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall design of the combined fire sprinkler head of this utility model;

[0015] Figure 2 This is a utility model Figure 1 A partial diagram showing the explosion;

[0016] Figure 3 This is a utility model Figure 2 Sectional view AA along direction A;

[0017] Figure 4 This is a utility model Figure 2 Bottom view of the central splash assembly;

[0018] Reference numerals: 1. Water pipe interface; 2. Valve body; 201. Sealing gasket; 3. Spray head; 301. Nozzle; 302. Connector; 321. Circular nozzle; 322. Angular nozzle; 4. Splash cover; 401. Splash assembly; 411. Outer ring; 412. Inner ring; 413. Water-blocking blade; 414. Umbrella disc; 402. Frame pole; 5. Pressure test port. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Throughout the invention, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] It should be understood that ordinal numbers and directional descriptions, such as "first," "second," "third," "upper," "lower," "left," and "right," are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Therefore, they should not be construed as limitations on this utility model.

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Please refer to the attached drawings. Figure 1-4 As shown, this application provides a combined fire sprinkler head, including an external connector 1. The top of the external connector 1 is provided with a valve body 2, and the valve body 2 and the external connector 1 are integrally formed. The top of the valve body 2 is provided with a sprinkler head 3 and a splash cover 4, wherein the splash cover 4 and the sprinkler head 3 are integrally formed. The bottom end of the sprinkler head 3 has a connector 302. A threaded connection port adapted to the connector 302 is opened radially inward along the top of the valve body 2. The top edge of the threaded connection port is recessed and filled with a sealing gasket 201. The connector 302 and the valve body 2 are connected by a threaded engagement. The sides and the top center of the sprinkler head 3 are provided with nozzles 301, and the nozzles 301 penetrate into the cavity of the sprinkler head 3. The external connector 1 is connected to the fire water network through a solenoid valve. The solenoid valve is integrated into the fire control system and its opening and closing are automatically controlled by the fire control system. Unlike the above implementation, multiple sets of external connectors 1 can also be connected to a section of the fire water network, and then the section of the pipeline can be connected through a solenoid valve.

[0022] Based on the above description, this application is an automatic fire sprinkler head controlled by an electromagnetic valve. The connector 302 connects the sprinkler head 3 and the valve body 2 through a threaded connection to form a combined structure. After the external electromagnetic valve is opened, water enters the valve body 2, pressurizes it, and then releases the water through the nozzle 301 on the sprinkler head 3. The nozzle 301 guides the water flow in different directions and forms a parabolic spray pattern, which improves the water flow dispersion rate and allows most of the water to cover the fire source downwards. The measured water mist coverage radius increases by 30%, and the water reflected to the ceiling is reduced, thereby increasing the effective amount of water actually reaching the fire source on the ground and improving the fire extinguishing efficiency.

[0023] Please refer to the following for details. Figure 2 and Figure 4As shown, the splash cover 4 also includes a splash assembly 401 and a support rod 402. The support rod 402 is arranged vertically and symmetrically, and the splash assembly 401 is embedded and connected to the center position of the top of the support rod 402. The splash assembly 401 is composed of an outer ring 411, an inner ring 412, a water-blocking blade 413 and a parasol plate 414. The outer ring 411 is higher than the inner ring 412 and is concentrically arranged with the inner ring 412. The water-blocking blade 413 is distributed in a ring array around the inner ring 412 and connects the outer ring 411 and the inner ring 412. The parasol plate 414 is vertically connected to the center position of the outer ring 411.

[0024] Based on the above embodiments, the center of the top of the splash cover 4 also has a nozzle 301 facing the bottom of the splash assembly 401. Since there are no flammable materials such as ceilings on the top of the fire scene (mainly for factories and warehouses in the background art), less water is required at the top. After the nozzle 301 on the splash cover 4 releases water, the water column that directly hits the splash assembly 401 passes through the inverted cone structure formed by the inner ring 412, the water-blocking blade 413 and the outer ring 411. First, the water column is broken to a certain extent. Then, the water-blocking blade 413 of the multi-prism structure divides and disperses the direction of the pressure water column around the splash assembly 401 to prevent concentration. Finally, the umbrella plate 414 changes the direction downward, so that the amount of water hitting the ceiling is effectively reduced to less than 5%.

[0025] Please refer to the following for details. Figure 1-3 As shown, the nozzles 301 are evenly distributed on the side of the nozzle 3. The nozzle 301 consists of a circular nozzle 321 and four angular nozzles 322 arranged in a ring around the circular nozzle 321. The inner opening of the angular nozzles 322 is a right-angled triangle with a longer hypotenuse. The diameter of the circular nozzle 321 is 2 to 4 millimeters.

[0026] Based on the above embodiments, the nozzle 301 adopts a composite design, that is, an angular nozzle 322 is opened around the circular nozzle 321. The openings on the inner side of the angular nozzle 322 are arranged in a right-angled triangle around the circular nozzle 321. After the pressurized water column passes through the right-angled triangular opening, it forms an inclined water curtain or water mist, which is released around the nozzle 301. On the one hand, it increases the coverage of the water mist, and on the other hand, it can maintain effective water pressure and continuous water supply. Moreover, the design of multiple sets of nozzles 301 can continuously expand the water mist range and improve the water volume superposition, which can extinguish the fire in a shorter time.

[0027] It should be noted that the number of nozzles 301 on the side of the spray head 3 in this application can be determined according to customization, and the specific number depends on the actual installation site and the pressure of the water network.

[0028] like Figure 1-2As shown, the valve body 2 has a certain taper of about 3:5. After the valve body 2 cavity is filled with water, it is pressurized, and a pressure measuring port 5 is installed on its side, which can be opened to connect an external pressure gauge or other pressure detection device; the umbrella disc 414 is inverted and has irregular serrations on the edge, which is used to disperse and refine the water column.

[0029] In summary, this utility model of a combined fire sprinkler head is an automatic fire sprinkler head controlled by an electromagnetic valve. Through the dual design of the nozzle and the splash cover, the water flow is guided in different directions and forms a parabolic spray pattern, which improves the water flow dispersion rate and reduces the amount of water reflected to the ceiling, thereby enhancing the effective coverage of the actual ground fire source and effectively improving the fire extinguishing efficiency.

[0030] The above are merely embodiments of this utility model. Common knowledge such as specific structures and characteristics in the solutions are not described in detail here. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and they will not affect the implementation effect of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A combined fire sprinkler head, comprising an external connector (1), characterized in that: The top of the external connector (1) is provided with a valve body (2), and the valve body (2) and the external connector (1) are integrally formed. The top of the valve body (2) is provided with a nozzle (3) and a splash cover (4) in sequence. The splash cover (4) and the nozzle (3) are integrally formed. The bottom of the nozzle (3) has a connector (302). A threaded connection port that is compatible with the connector (302) is opened inward along the top radial direction of the valve body (2). The top edge of the threaded connection port is concave and filled with a sealing gasket (201). The connector (302) and the valve body (2) are connected by a threaded fit. The nozzle (301) is provided on the side and the top center of the nozzle (3). The nozzle (301) penetrates into the cavity of the nozzle (3).

2. The combined fire sprinkler head according to claim 1, characterized in that: The splash cover (4) also includes a splash assembly (401) and a support rod (402). The support rod (402) is arranged upright and symmetrically, and the splash assembly (401) is embedded and connected to the center position of the top of the support rod (402).

3. The combined fire sprinkler head according to claim 2, characterized in that: The water-splashing assembly (401) consists of an outer ring (411), an inner ring (412), a water-blocking blade (413), and a parasol disc (414). The outer ring (411) is higher than the inner ring (412) and is concentrically arranged with the inner ring (412). The water-blocking blade (413) is arranged in a ring array around the inner ring (412) and connects the outer ring (411) to the inner ring (412). The parasol disc (414) is vertically connected to the center of the outer ring (411).

4. The combined fire sprinkler head according to claim 1, characterized in that: The nozzles (301) are equidistantly distributed on the side of the nozzle (3). Each nozzle (301) consists of a circular nozzle (321) and four angular nozzles (322) arranged in a ring around the circular nozzle (321).

5. A combined fire sprinkler head according to claim 4, characterized in that: The inner opening of the angular nozzle (322) is a right-angled triangle, and the diameter of the circular nozzle (321) is 2 to 4 millimeters.

6. A combined fire sprinkler head according to claim 1, characterized in that: The valve body (2) has a certain taper and a pressure measuring port (5) is installed on its side.

7. A combined fire sprinkler head according to claim 3, characterized in that: The umbrella disc (414) is inverted and has irregular serrations on its edges.

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