An assembled automatic rotating sprinkler head

Abstract

The present invention discloses an assembled automatic rotating sprinkler head, comprising a water inlet pipe connected to a fire water pipeline, a guide cover fixed on the water inlet pipe, a guide impeller fixed on the water inlet pipe through a bearing and located below the guide cover, a porous spray head connected to the water inlet pipe through a thread, and a jet nozzle arranged at the lower part of the guide cover, a guide port opened on the water inlet pipe and connected to the internal channel of the water inlet pipe, and a guide pipe for connecting the guide port and the jet nozzle. The present invention provides a jet nozzle and a guide impeller, and water flow ejected through the jet nozzle generates an impact force on the guide impeller, prompting the guide impeller to rotate. The high-speed rotation of the guide impeller breaks up and atomizes the water flow ejected from the jet nozzle and the water flow ejected from the porous spray head, and then forms a solid conical spray through the guide cover, which greatly improves the atomization radius of the water mist, increases the radius of fire extinguishing, improves its fire extinguishing efficiency, and ensures the safety of people's lives and property.

Description

Technical Field

[0001] The invention relates to the technical field of fire fighting equipment, and in particular to an assembled automatic rotating sprinkler head. Background Art

[0002] A sprinkler is a water spraying device that can spray water in the designed water spraying shape and flow rate under working conditions, and is an important part of the fire extinguishing system. Due to its own structural limitations or differences in use, the existing ordinary fire sprinkler usually has poor water distribution performance, and the atomization angle is generally less than 150°. When used in high-clearance places such as stadiums, warehouses, and shopping malls, it is often difficult to meet the needs of fire extinguishing. Most of the existing rotary sprinklers use the hydraulic circulation and aerodynamic principles to rotate and distribute large water droplets, forming less water mist. When used in traffic tunnel fire extinguishing and building structure protection cooling, it is often difficult to meet the needs of fire extinguishing or structure protection cooling. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an assembled automatic rotating sprinkler head which can maintain large water droplets under relatively low working pressure and have a larger protection area. Under relatively high pressure, the droplet diameter is greatly reduced to form a spray, which can be used for fire extinguishing and protective cooling in high clearance places, traffic tunnels, building structures, etc., to ensure the safety of people's lives and property.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] An assembled automatic rotating sprinkler head comprises a water inlet pipe connected to a fire water pipeline, a flow guide cover fixed on the water inlet pipe, a flow guide impeller fixed on the water inlet pipe through a bearing and located below the flow guide cover, a porous spray head connected to the water inlet pipe through a thread, and a jet nozzle arranged at the lower part of the flow guide cover, a flow guide port opened on the water inlet pipe and connected to the internal channel of the water inlet pipe, and a flow guide pipe for connecting the flow guide port and the jet nozzle.

[0006] Furthermore, the water inlet pipe has a multi-layer cone structure with multi-layer variable-diameter channels inside, and from bottom to top, the first-layer cone is connected to the porous spray head, the second-layer cone is connected to the guide impeller through a bearing, the third-layer cone is used to prevent the guide impeller and the bearing from moving upward, and the fourth-layer cone is connected to the guide cover; the guide port is opened on the outer wall of the fourth-layer cone.

[0007] Furthermore, the air deflector is a conical structure with an arc surface, and its edges are bent and contracted to form a baffle.

[0008] Furthermore, a plurality of air deflector connecting threaded holes for connecting the air deflector are evenly distributed on the fourth-layer truncated cone; a first through hole that can pass through the third-layer truncated cone is opened at the center position of the air deflector, and a plurality of second through holes matching the air deflector connecting threaded holes are opened on the air deflector, and screws pass through the second through holes and cooperate with the air deflector connecting threaded holes to fix the air deflector on the fourth-layer truncated cone.

[0009] Furthermore, the guide impeller comprises a collar connected to the second-layer truncated cone, and a plurality of bent guide blades evenly distributed around the collar; wherein the collar has a bearing embedded therein and is fixed to the second-layer truncated cone via the bearing.

[0010] Furthermore, the porous spray head is in the shape of a hollow sphere, and a plurality of evenly distributed water spray holes are provided on the surface of the hollow sphere.

[0011] Preferably, the diameters of all the water spray holes are equal.

[0012] In another preferred embodiment, the diameters of the water spray holes decrease from top to bottom.

[0013] Furthermore, the porous spray head is provided with a boss for preventing the guide impeller and the bearing from moving downward.

[0014] Furthermore, the flow guide pipe is a stainless steel pipe or a high-pressure resistant hose.

[0015] The present invention has an ingenious concept, a simple structure and reliable technology. When the water pressure is low (0.1-0.2MPa), most of the water flows through the water inlet pipe and the multi-hole spray head to spray out, forming droplets with larger diameters to spray out from the water spray holes of the multi-hole spray head. The droplets with larger diameters directly act on the fire position, thereby increasing the coverage area of ​​the fire point and reducing the fire extinguishing time. When the water pressure is high (0.5-0.8MPa), the water flows into the water inlet pipe and sprays out through the multi-hole spray head. At the same time, the water flows through the guide pipe. Diversion, the water flow coming out of the diversion port is sprayed out through the jet nozzle. The high-speed water flow produces an impact force on the guide impeller, prompting the guide impeller to rotate. The high-speed rotation of the guide impeller breaks up the water flow sprayed from the jet nozzle and the water flow sprayed from the porous spray head into atomization, and then passes through the diversion of the guide cover to form a solid conical spray. The atomization angle can reach 180°. When used in high-clearance places, traffic tunnels, building structures, etc., it greatly improves its fire extinguishing and protective cooling effects to ensure the safety of people's lives and property. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2It is a cross-sectional schematic diagram of the present invention.

[0018] Figure 3 It is a bottom view schematic diagram of the present invention.

[0019] Figure 4 It is a schematic diagram of the water inlet pipe structure of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the air guide cover of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the porous spray head of the present invention.

[0022] The names corresponding to the reference numerals are:

[0023] 1-water inlet pipe, 2-flow guide cover, 3-flow guide impeller, 4-porous spray head, 5-jet nozzle, 6-flow guide port, 7-flow guide pipe, 8-bearing, 9-first layer frustum, 10-second layer frustum, 11-third layer frustum, 12-fourth layer frustum, 13-first through hole, 14-second through hole, 15-flow guide blade, 16-water spray hole, 17-boss, 18-blocking platform, 19-ring. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The embodiments of the present invention include but are not limited to the following embodiments.

[0025] like Figures 1 to 6 As shown:

[0026] An assembled automatic rotating sprinkler comprises a water inlet pipe 1 connected to a fire water pipeline, a flow guide cover 2 fixed on the water inlet pipe 1, a flow guide impeller 3 fixed to the water inlet pipe 1 through a bearing 8 and located below the flow guide cover 2, a porous spray head 4 connected to the water inlet pipe 1 through a thread, and a jet nozzle 5 arranged at the lower part of the flow guide cover 2, a flow guide port 6 opened on the water inlet pipe 1 and connected to the internal channel of the water inlet pipe 1, and a flow guide pipe 7 for connecting the flow guide port 6 and the jet nozzle 5.

[0027] In this embodiment, the water inlet pipe 1 is arranged into a multi-layer cone structure, with a variable diameter channel in the middle for water flow, which are, from bottom to top, the first cone 9, the second cone 10, the third cone 11 and the fourth cone 12; wherein, the outer wall of the first cone 9 is an external thread, and the porous spray head is provided with an internal threaded tube, and the first cone 9 is connected to the internal threaded tube of the porous spray head by a threaded connection, and the porous spray head 4 is in the shape of a hollow sphere, and a plurality of evenly distributed water spray holes 16 are opened on the surface of the hollow sphere. The water spray holes 16 can be arranged in a variety of ways, and there are two preferred ways: the first way is to arrange all the water spray holes into a structure with exactly the same aperture size, so that they are evenly distributed on the surface of the sphere; the second way is to arrange the water spray holes 16 into a multi-layer surrounding structure, and from top to bottom, the aperture sizes of the water spray holes in different layers decrease successively, and the aperture sizes of the water spray holes in the same layer are the same.

[0028] The second-layer truncated cone 10 is used to connect the guide impeller 3. The guide impeller 3 is composed of a sleeve 19 connected to the second-layer truncated cone 10 and a plurality of bent guide blades 15 evenly distributed around the sleeve; wherein the sleeve has a bearing 8 embedded therein, and the bearing 8 is fixedly sleeved on the second-layer truncated cone. The guide impeller can rotate freely around the second-layer truncated cone through the connection of the bearing. The third-layer truncated cone 11 is used to prevent the guide impeller 3 and the bearing 8 from moving upward. At the same time, in order to prevent the guide impeller 3 and the bearing 8 from moving downward, a boss 17 is arranged on the porous spray head 4. The outer edge diameter of the boss 17 is larger than the diameter of the second-layer truncated cone, thereby limiting the guide impeller 3 and the bearing 8 and preventing them from moving downward.

[0029] The air deflector 2 is fixed on the fourth-layer cone 12. Specifically, the air deflector 2 is a conical structure with an arc surface, and is bent and contracted around its edges to form a baffle 18. At the same time, a first through hole 13 is opened at the center position of the air deflector 2. The diameter of the first through hole 13 is slightly larger than the diameter of the third-layer cone 11, and the third-layer cone 11 can just pass through the first through hole 13; a plurality of evenly distributed air deflector connecting threaded holes are arranged on the end face of the fourth-layer cone, and a second through hole 14 matching the air deflector connecting threaded hole is opened on the air deflector 2. The screw passes through the second through hole 14 and cooperates with the air deflector 2 connecting threaded hole to fix the air deflector 2 on the fourth-layer cone 12.

[0030] The flow guide port 6 is also provided on the outer wall of the fourth-layer truncated cone 12. The flow guide pipe is made of a stainless steel pipe or a high-pressure hose, and the flow guide port 6 is connected to the jet nozzle 5 through a quick connector. At the same time, in order to facilitate the clamping of the fourth-layer truncated cone and the installation of the rotating nozzle, a concave platform is provided on the fourth-layer truncated cone. The external clamp realizes the clamping of the fourth truncated cone by clamping the concave platform, so as to conveniently and quickly connect the fourth truncated cone to the fire water pipeline.

[0031] The above embodiment is only one of the preferred implementation modes of the present invention and should not be used to limit the protection scope of the present invention. Any changes or modifications that are made to the main design concept and spirit of the present invention and have no substantive significance, and the technical problems they solve are still consistent with the present invention, should be included in the protection scope of the present invention.

Claims

1. An assembled automatic rotating sprinkler head, characterized in that: It comprises a water inlet pipe (1) connected to a fire water pipeline, a flow guide cover (2) fixed on the water inlet pipe (1), a flow guide impeller (3) fixed on the water inlet pipe (1) via a bearing (8) and located below the flow guide cover (2), a multi-hole spray head (4) connected to the water inlet pipe (1) via a thread, and a jet nozzle (5) arranged at the bottom of the flow guide cover (2), a flow guide port (6) opened on the water inlet pipe (1) and connected to the internal channel of the water inlet pipe (1), and a flow guide pipe (7) used to connect the flow guide port (6) and the jet nozzle (5); The water inlet pipe (1) is in the form of a multi-layered truncated cone structure, wherein a multi-layered variable-diameter channel is provided inside the water inlet pipe. From bottom to top, the first-layer truncated cone (9) is connected to the porous spray head (4), the second-layer truncated cone (10) is connected to the guide impeller (3) via a bearing (8), the third-layer truncated cone (11) is used to prevent the guide impeller (3) and the bearing (8) from moving upward, and the fourth-layer truncated cone (12) is connected to the guide cover (2); the guide port (6) is provided on the outer wall of the fourth-layer truncated cone (12); the guide cover (2) is in the form of a conical structure with an arc surface, and is bent and contracted on all sides at its edge to form a stopper (18); The fourth-layer truncated cone (12) is evenly distributed with a plurality of shroud connection threaded holes for connecting the shroud (2); a first through hole (13) capable of passing through the third-layer truncated cone (11) is provided at the center of the shroud (2); the shroud (2) is provided with a plurality of second through holes (14) matching the connection threaded holes of the shroud (2); screws pass through the second through holes (14) and cooperate with the connection threaded holes of the shroud (2) so that the shroud (2) is fixedly connected to the fourth-layer truncated cone (12); The guide impeller (3) comprises a collar (19) connected to the second-layer truncated cone (10), and a plurality of bent guide vanes (15) evenly distributed around the collar; wherein the collar has a bearing (8) embedded therein and is fixed to the second-layer truncated cone (10) via the bearing (8); The porous spray head (4) is in the shape of a hollow sphere, and a plurality of evenly distributed water spray holes (16) are provided on the surface of the hollow sphere.

2. The assembled automatic rotating sprinkler according to claim 1, characterized in that: The apertures of all the water spray holes (16) are equal.

3. The assembled automatic rotating sprinkler according to claim 1, characterized in that: The diameters of the water spray holes (16) decrease from top to bottom.

4. The assembled automatic rotating sprinkler according to claim 1, characterized in that: The porous spray head (4) is provided with a boss (17) for preventing the guide impeller (3) and the bearing (8) from moving downward.

5. The assembled automatic rotating sprinkler according to claim 1, characterized in that: The flow guide pipe (7) is a stainless steel pipe or a high-pressure resistant hose.

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