Fire-fighting safety fire extinguishing spraying device for public facility building

Abstract

The invention provides a public facility building fire-fighting safety fire extinguishing spraying device which comprises an adjusting assembly which drives all spraying assemblies and cleaning assemblies assembled on all the spraying assemblies to integrally and horizontally move linearly in the front-back direction so as to synchronously adjust the positions of all spraying heads on all the spraying assemblies; the number of the spraying assemblies is multiple, each spraying assembly drives a spraying rotating shaft horizontally arranged in the left-right direction to rotate around the axis through a spraying motor, all the spraying heads suspended by the spraying rotating shaft are driven to swing leftwards or rightwards together, and therefore the spraying angles of all the spraying heads are adjusted; each spraying assembly is provided with one cleaning assembly, a vertically-arranged cleaning rotating shaft is driven by a cleaning motor to rotate around the axis, a cleaning brush coaxially assembled on the cleaning rotating shaft is driven to rotate together, and bristles of the cleaning brush are always right opposite to and keep making contact with the inner surface of a water outlet, provided with fine and dense spraying holes, of a spraying head. The spraying angle is flexible and adjustable, the coverage range can be wider, and the fire extinguishing effect is better.

Description

Technical Field

[0001] This invention relates to a fire protection facility, and more specifically to a fire-fighting sprinkler system for public buildings. Background Technology

[0002] Fires in public facilities and buildings can easily cause significant casualties and property damage. Existing fire sprinkler systems have some shortcomings: limited spray patterns, limited coverage area, and slow response times result in poor fire suppression effectiveness. This is because some sprinkler heads have fixed spray angles or small coverage areas, creating blind spots during a fire. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes a fire-fighting sprinkler system for public facilities buildings, featuring a flexible and adjustable spray angle that allows for wider coverage and better fire-fighting effect.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A fire-fighting sprinkler system for public facilities buildings, comprising: The adjustment component drives each spray assembly and the cleaning components assembled on each spray assembly to move horizontally in a straight line along the front and back direction, so as to synchronously adjust the position of each nozzle on each spray assembly. The spray assembly is provided in multiple sets. Each set of spray assemblies is driven by a spray motor to rotate a horizontally arranged spray shaft around an axis, causing each nozzle suspended by the spray shaft to swing to the left or right to adjust the spray angle of each nozzle. The cleaning components, each set of spray components is configured with one set, which is driven by a cleaning motor to rotate a vertically arranged cleaning shaft around the axis, driving the cleaning brush coaxially assembled on the cleaning shaft to rotate together. The bristles of the cleaning brush are always facing and in contact with the inner surface of the water outlet with fine spray holes of the spray head.

[0005] The structural features of this invention also lie in: The adjustment assembly includes a screw, a pair of slide rods, an adjustment frame, and an adjustment motor. The screw is horizontally arranged in the front-to-back direction and rotatably suspended from the interior ceiling of the public facility building, with one end coaxially connected to the motor shaft of the adjustment motor. The pair of slide rods are symmetrically arranged on the left and right side walls of the public facility building, and are horizontally arranged in the front-to-back direction. The left and right ends of the adjustment frame are slidably mounted on the pair of slide rods, and the top of the adjustment frame is fitted onto the screw with a threaded connection. The adjustment assembly drives the screw to rotate around its axis through the adjustment motor. Through the threaded connection between the screw and the top of the adjustment frame, and through the sliding connection between the pair of slide rods and the adjustment frame, the adjustment frame is moved linearly in the front-to-back direction under the guidance of the pair of slide rods. Each spray assembly is spaced apart in the left-to-right direction and suspended on the adjustment frame, moving synchronously with the adjustment frame.

[0006] The spray assembly includes a spray frame, a spray motor, a spray shaft, a first telescopic hose, a tube, and a nozzle. The spray frame is suspended at the bottom of the adjusting frame. The spray shaft extends horizontally in the left-right direction and is rotatably mounted on the spray frame. One end of the shaft is coaxially connected to the motor shaft of the spray motor. The tube forms a cylindrical hollow cavity, which is arranged radially along the spray shaft. One end of the tube is closed and fixed to the outer peripheral wall of the spray shaft, while the other end is connected to and communicates with the water inlet side of the DC nozzle. The water inlet of the first telescopic hose is connected to a first water pipe for receiving external water, and its outlet is connected to the peripheral wall of the tube and communicates with the cylindrical hollow cavity. The outlet side of the DC nozzle is a water outlet with multiple evenly and densely arranged spray holes. The inner surface of the outlet remains in contact with the bristles of the cleaning brush.

[0007] The tube is also provided with multiple atomizing nozzles on one end for connection with the DC nozzle. The multiple atomizing nozzles are distributed at equal intervals along the circumference and surround the DC nozzle. The water inlet of the atomizing nozzle is connected to the inner cavity of the tube.

[0008] The first water pipe is embedded in the water pipe groove reserved on the adjustment frame.

[0009] It is also equipped with a second telescopic hose and a second water pipe that are connected. The inlet of the second telescopic hose is connected to the first water pipe, and the outlet is connected to the inlet of the second water pipe. The second water pipe hangs downward through the second telescopic hose, with the outlet at the lower end. A switch valve is provided on the second water pipe.

[0010] The cleaning assembly includes a cleaning motor, a cleaning shaft, a cleaning brush, and blades. The cleaning shaft is rotatably and coaxially suspended in the cylindrical hollow cavity of the tube. Its top end is coaxially connected to the motor shaft of the cleaning motor, which is fixed to the closed end of the tube. The cleaning brush is suspended at its bottom end. The handle of the cleaning brush extends horizontally in the cavity of the DC nozzle and has a centrally located connection hole. It is coaxially fitted onto the bottom end of the cleaning shaft through the connection hole. The bristle side of the cleaning brush handle faces the ground and is in contact with the inner surface of the DC nozzle's outlet. The upper part of the cleaning shaft has multiple blades that are equidistantly distributed around the axis. The blades are spaced apart along the axial direction of the cleaning shaft from the closed end of the tube.

[0011] The cleaning motor is equipped with a waterproof cover.

[0012] Compared with existing technologies, the beneficial effects of this invention are reflected in: First, by adjusting the components, the position of each spray component can be adjusted synchronously in the front and back direction. Each nozzle of each spray component can swing to the left or right together, so as to make the spray coverage area of ​​the device wider. On the other hand, the device can be adjusted to the specific location of the fire source to achieve more precise fire extinguishing, better fire extinguishing effect, and better adapt to the fire extinguishing needs of various complex building space structures. Secondly, each spray assembly is equipped with a cleaning component, which enables the spray assembly to have a self-cleaning function for the nozzles, preventing the spray function of the device from being affected by blockage and ensuring the fire extinguishing effect of the device. Third, in addition to the various spray components, the device is also equipped with a second telescopic hose and a second water pipe. The outlet of the second water pipe is used as another spray method besides the DC nozzle and each atomizing nozzle, further enriching the spray function of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the adjustment component; Figure 3 This is a structural diagram of the adjustment component from another perspective; Figure 4 This is a schematic diagram of the spray system assembly; Figure 5 This is a schematic diagram of the cleaning components inside the spray system.

[0014] In the picture: 1. Adjustment assembly; 11. Screw; 12. Slide rod; 13. Adjustment frame; 131. Water pipe trough; 14. Adjustment motor; 2. Spray assembly; 21. Spray frame; 22. Spray motor; 23. Spray shaft; 24. First telescopic hose; 25. Tube; 26. DC nozzle; 261. Spray hole; 27. Atomizing nozzle; 28. First water pipe; 31 Cleaning shaft; 32 Cleaning brush; 321 Connecting hole; 33 Blade; 34 Cleaning motor; 35 Waterproof cover; 41 Second flexible hose; 42 Second water pipe; 43 Switch valve; 51 Interior ceiling; 52 Wall panel; 521 Mounting groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Please refer to Figures 1 to 5 The fire sprinkler system for public facility buildings in this embodiment includes: Adjustment component 1 drives each spray component 2 and the cleaning components assembled on each spray component 2 to move horizontally in a straight line along the front and back direction, so as to synchronously adjust the position of each nozzle on each spray component 2. The spray assembly 2 is provided in multiple groups. Each spray assembly 2 is driven by the spray motor 22 to rotate the spray shaft 23 arranged horizontally in the left and right directions around the axis, which causes each nozzle suspended by the spray shaft 23 to swing to the left or right to adjust the spray angle of each nozzle. The cleaning components are configured in one set for each spray assembly 2. The vertically arranged cleaning shaft 31 is driven by the cleaning motor 34 to rotate around the axis, which drives the cleaning brush 32 coaxially assembled on the cleaning shaft 31 to rotate together. The bristles of the cleaning brush 32 are always facing and in contact with the inner surface of the water outlet with fine spray holes 261 of the spray head.

[0017] In practice, the corresponding structural features of the fire sprinkler system also include: The adjustment assembly 1 includes a screw 11, a pair of slide rods 12, an adjustment frame 13, and an adjustment motor 14. The screw 11 is horizontally arranged in the front-to-back direction and rotatably suspended around its axis on the indoor ceiling 51 of the public facility building, with one end of the screw 11 coaxially connected to the motor shaft of the adjustment motor 14. The pair of slide rods 12 are symmetrically arranged on the left and right side wall panels 52 of the public facility building, and are horizontally arranged in the front-to-back direction. The left and right ends of the adjustment frame 13 are slidably mounted on the pair of slide rods 12, and the top of the adjustment frame 13 is fitted onto the screw 11 and threadedly engaged with the screw 11. The adjustment assembly 1 drives the screw 11 to rotate around its axis through the adjustment motor 14. Through the threaded engagement between the screw 11 and the top of the adjustment frame 13, and through the sliding engagement between the pair of slide rods 12 and the adjustment frame 13, the adjustment frame 13 is driven to move linearly in the front-to-back direction under the guidance of the pair of slide rods 12. Each spray assembly 2 is spaced apart in the left-to-right direction and is suspended on the adjustment frame 13, moving synchronously with the adjustment frame 13. A mounting groove 521 is provided on the wall panel 52 for mounting the slide bar 12.

[0018] The spray assembly 2 includes a spray frame 21, a spray motor 22, a spray shaft 23, a first telescopic hose 24, a tube 25, and spray heads. It is suspended from the bottom of the adjusting frame 13 via the spray frame 21. The spray shaft 23 extends horizontally in the left-right direction and is rotatably mounted on the spray frame 21. One end of the shaft is coaxially connected to the motor shaft of the spray motor 22. A cylindrical hollow cavity is formed inside the tube 25, arranged radially along the spray shaft 23. One end of the tube 25... The side cylinder is closed and fixed to the outer peripheral wall of the spray shaft 23. The other side cylinder is connected to and communicates with the water inlet side of the DC nozzle 26. The water inlet of the first telescopic hose 24 is connected to the first water pipe 28 for receiving external water. The water outlet is connected to the peripheral wall of the tube 25 and communicates with the cylindrical hollow inner cavity. The water outlet of the DC nozzle 26 is a water outlet with multiple evenly and densely arranged spray holes 261. The inner surface of the water outlet is always in contact with the bristles of the cleaning brush 32. The spray frame 21 has a pipe hole through which the first telescopic hose 24 passes. Based on this embodiment, by configuring an angle sensor for the spray motor 22 and connecting the angle sensor to the fire control system, the fire control system can control the spray motor 22 to rotate to the required angle and lock it at the current angle, so that each nozzle is adjusted to the required spray angle and held, thus accurately spraying the fire-fighting area.

[0019] The tube 25, on one end connected to the direct current nozzle 26, is also equipped with multiple atomizing nozzles 27. These atomizing nozzles 27 are evenly spaced along the circumference and surround the direct current nozzle 26. The inlets of the atomizing nozzles 27 are connected to the inner cavity of the tube 25. The direct current nozzle 26 can be used for long-distance spraying or fire extinguishing scenarios requiring high impact force to strike the base of the flames. The atomizing nozzles 27 can be used to create a water curtain or for fire extinguishing scenarios requiring uniform dispersion of water droplets. They are suitable for extinguishing initial or lightly hazardous fires. The water mist produced can quickly reduce the ambient temperature, isolate air, and improve fire extinguishing efficiency and effectiveness.

[0020] Based on this embodiment, a further design can be made to use a solenoid valve to switch whether the atomizing nozzle 27 is used or not, in order to adapt to different types of fires such as ground flow fires or three-dimensional fires. For example, the tube can be designed as a double-layered tube. The lower end of the inner tube is connected to the DC nozzle 26, and the bottom end of the outer tube is provided with multiple atomizing nozzles 27. The peripheral wall of the outer tube has a second hole reserved at the connection point with each atomizing nozzle 27 for communication with the inlet side of the atomizing nozzle 27. The outer tube can reciprocate around the axis relative to the inner tube under the action of the solenoid valve. The inner tube has multiple first holes reserved corresponding to the positions of the second holes on the outer tube. By reciprocating the outer tube, the second holes on the outer tube are aligned one by one with the first holes on the inner tube, so that the water flow in the inner tube can enter the atomizing nozzles 27, or the second holes on the outer tube are blocked by the peripheral wall of the inner tube, so that the water inlet side of the atomizing nozzle 27 is blocked, thereby realizing the opening / closing of the atomizing nozzle.

[0021] The first water pipe 28 is embedded in the water pipe groove 131 reserved on the adjusting frame 13.

[0022] A second telescopic hose 41 and a second water pipe 42 are also connected. The inlet of the second telescopic hose 41 is connected to the first water pipe 28, and the outlet is connected to the inlet of the second water pipe 42. The second water pipe 42 hangs downward through the second telescopic hose 41, with the lower end being the outlet. A switch valve 43 is provided on the second water pipe 42. When the switch valve 43 is opened, the outlet of the second water pipe 42 also has a spraying function, becoming another spraying method in addition to the direct current nozzle 26 and each atomizing nozzle 27, thus enriching the spraying function of the device.

[0023] The cleaning assembly includes a cleaning motor 34, a cleaning shaft 31, a cleaning brush 32, and blades 33. The cleaning shaft 31 is rotatably and coaxially suspended in the cylindrical hollow cavity of the tube 25. Its top end is coaxially connected to the motor shaft of the cleaning motor 34, which is fixed on the closed side of the tube 25. The cleaning brush 32 is suspended at its bottom end. The handle of the cleaning brush 32 extends horizontally in the cavity of the DC nozzle 26 and has a centrally located connection hole 321. It is coaxially fitted onto the bottom end of the cleaning shaft 31 through the connection hole 321. The bristle side of the handle of the cleaning brush 32 faces the ground and is in contact with the inner surface of the outlet of the DC nozzle 26. The upper part of the cleaning shaft 31 has multiple blades 33 that are equidistantly distributed around the axis. The multiple blades 33 are left open along the axial direction of the cleaning shaft 31 from the closed side of the tube 25.

[0024] Cleaning motor 34 with external waterproof cover 35.

[0025] This device, by adjusting the position of the sprinkler assembly 2 and the spray angle of the nozzles, achieves a wider spray coverage range, better meeting the fire extinguishing needs of diverse spatial layouts in public facilities buildings. For example, shopping malls may have different shop layouts, and office buildings may have different office area divisions. It can also more effectively address the fire extinguishing needs of hard-to-reach areas such as narrow passageways or corners, allowing the device to better adapt to various complex building spatial structures. The following is an example of the adjustment method: 1. Synchronous adjustment of the positions of each spray component 2: The adjusting motor 14 drives the screw 11 to rotate around the axis. Through the threaded engagement between the top of the adjusting frame 13 and the screw 11, and through the sliding engagement between the left and right sides of the adjusting frame 13 and a pair of slide rods 12, the adjusting frame 13 and each set of spray components 2 suspended on the adjusting frame 13 are moved horizontally in the front-back direction, thereby realizing the synchronous adjustment of the front / back position of each set of spray components 2 in the horizontal plane. Second, synchronous adjustment of the spray angle of each nozzle in each spray assembly 2: The spray motor 22 drives the spray shaft 23 to rotate, which in turn causes the tubes 25 of each spray assembly 2 fixed on the spray shaft 23 to swing forward / backward around the axis of the spray shaft 23, thereby achieving synchronous adjustment of the spray angle of each nozzle.

[0026] In addition, this device is equipped with a cleaning component, which enables each spray assembly 2 to have a self-cleaning function. The working principle of the cleaning component is as follows: The cleaning motor 34 drives the cleaning shaft 31 to rotate, causing the blades 33 and the cleaning brush 32 to rotate together around the axis of the cleaning shaft 31. The blades 33 agitate the water in the tube 25, and the bristles of the rotating cleaning brush 32 clean the nozzles 261 of the DC nozzle 26, thereby improving the effect of clogging the nozzles 261.

[0027] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fire-fighting sprinkler system for public facilities buildings, characterized in that: include: The adjustment component drives each spray assembly and the cleaning components assembled on each spray assembly to move horizontally in a straight line along the front and back direction, so as to synchronously adjust the position of each nozzle on each spray assembly. The spray assembly is provided in multiple sets. Each set of spray assemblies is driven by a spray motor to rotate a horizontally arranged spray shaft around an axis, causing each nozzle suspended by the spray shaft to swing to the left or right to adjust the spray angle of each nozzle. The cleaning components, each set of spray components is configured with one set, which is driven by a cleaning motor to rotate a vertically arranged cleaning shaft around the axis, driving the cleaning brush coaxially assembled on the cleaning shaft to rotate together. The bristles of the cleaning brush are always facing and in contact with the inner surface of the water outlet with fine spray holes of the spray head.

2. The fire-fighting sprinkler system for public facilities buildings according to claim 1, characterized in that: The adjustment assembly includes a screw, a pair of slide rods, an adjustment frame, and an adjustment motor. The screw is horizontally arranged in the front-to-back direction and rotatably suspended from the interior ceiling of the public facility building, with one end coaxially connected to the motor shaft of the adjustment motor. The pair of slide rods are symmetrically arranged on the left and right side walls of the public facility building, and are horizontally arranged in the front-to-back direction. The left and right ends of the adjustment frame are slidably mounted on the pair of slide rods, and the top of the adjustment frame is fitted onto the screw with a threaded connection. The adjustment assembly drives the screw to rotate around its axis through the adjustment motor. Through the threaded connection between the screw and the top of the adjustment frame, and through the sliding connection between the pair of slide rods and the adjustment frame, the adjustment frame is moved linearly in the front-to-back direction under the guidance of the pair of slide rods. Each spray assembly is spaced apart in the left-to-right direction and suspended on the adjustment frame, moving synchronously with the adjustment frame.

3. The fire-fighting sprinkler system for public facilities buildings according to claim 2, characterized in that: The spray assembly includes a spray frame, a spray motor, a spray shaft, a first telescopic hose, a tube, and a nozzle. The spray frame is suspended at the bottom of the adjusting frame. The spray shaft extends horizontally in the left-right direction and is rotatably mounted on the spray frame. One end of the shaft is coaxially connected to the motor shaft of the spray motor. The tube forms a cylindrical hollow cavity, which is arranged radially along the spray shaft. One end of the tube is closed and fixed to the outer peripheral wall of the spray shaft, while the other end is connected to and communicates with the water inlet side of the DC nozzle. The water inlet of the first telescopic hose is connected to a first water pipe for receiving external water, and its outlet is connected to the peripheral wall of the tube and communicates with the cylindrical hollow cavity. The outlet side of the DC nozzle is a water outlet with multiple evenly and densely arranged spray holes. The inner surface of the outlet remains in contact with the bristles of the cleaning brush.

4. The fire-fighting sprinkler system for public facilities buildings according to claim 3, characterized in that: The tube is also provided with multiple atomizing nozzles on one end for connection with the DC nozzle. The multiple atomizing nozzles are distributed at equal intervals along the circumference and surround the DC nozzle. The water inlet of the atomizing nozzle is connected to the inner cavity of the tube.

5. The fire-fighting sprinkler system for public facilities buildings according to claim 3, characterized in that: The first water pipe is embedded in the water pipe groove reserved on the adjustment frame.

6. The fire-fighting sprinkler system for public facilities buildings according to claim 5, characterized in that: It is also equipped with a second telescopic hose and a second water pipe that are connected. The inlet of the second telescopic hose is connected to the first water pipe, and the outlet is connected to the inlet of the second water pipe. The second water pipe hangs downward through the second telescopic hose, with the outlet at the lower end. A switch valve is provided on the second water pipe.

7. The fire-fighting sprinkler system for public facilities buildings according to claim 3, characterized in that: The cleaning assembly includes a cleaning motor, a cleaning shaft, a cleaning brush, and blades. The cleaning shaft is rotatably and coaxially suspended in the cylindrical hollow cavity of the tube. Its top end is coaxially connected to the motor shaft of the cleaning motor, which is fixed to the closed end of the tube. The cleaning brush is suspended at its bottom end. The handle of the cleaning brush extends horizontally in the cavity of the DC nozzle and has a centrally located connection hole. It is coaxially fitted onto the bottom end of the cleaning shaft through the connection hole. The bristle side of the cleaning brush handle faces the ground and is in contact with the inner surface of the DC nozzle's outlet. The upper part of the cleaning shaft has multiple blades that are equidistantly distributed around the axis. The blades are spaced apart along the axial direction of the cleaning shaft from the closed end of the tube.

8. The fire-fighting sprinkler system for public facilities buildings according to claim 7, characterized in that: The cleaning motor is equipped with a waterproof cover.

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