Automatic fire-fighting water spraying device with variable spraying modes

Abstract

The invention relates to the technical field of fire-fighting equipment, in particular to an automatic fire-fighting water spraying device with variable spraying modes, which comprises the following structures: a bearing shell is fixedly arranged on an external bearing mechanism; the output pipe is rotatably arranged at the bottom of the bearing shell; the hollow shaft is movably inserted into an inner cavity of the bearing shell, and the bottom end of an inner side pipe body of the hollow shaft is movably connected with the output pipe in an inserted mode. An interlayer cavity of the hollow shaft is communicated with an inner cavity of the bearing shell and external water supply equipment; a plurality of flow guide notches are formed in the bottom end of the inner side pipe body; the atomization module is arranged on the bearing shell and used for atomizing the water solution; the bearing body is fixedly arranged on the output pipe in a sleeving manner and is connected with the atomization module; the driving module is arranged on the bearing shell, connected with the hollow shaft and used for controlling the hollow shaft to stretch out, draw back and rotate. According to the device, the bearing body is rotationally arranged on the bottom wall of the inner cavity of the bearing shell, so that the bearing body is uniformly stressed when blocking the atomization module, the problem that the atomization module is easily damaged when being impacted by water flow is effectively relieved, and the defects in the prior art are overcome.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting equipment, and in particular to an automatic fire-fighting water spraying device with a variable spraying mode. Background Art

[0002] During the firefighting process, firefighters need to frequently switch water spraying modes when facing different fire conditions and fire sources. Commonly used fire extinguishing devices generally only have one type of nozzle. To meet this demand, Chinese invention patent CN119280742B discloses an automatic tracking and positioning jet fire extinguishing device. The device is equipped with a nozzle assembly that integrates different types of nozzle pipes and a switching assembly at the front end of the jet pipe. During operation, the target nozzle pipe is selected by the switching assembly and connected to the jet pipe, so that water flows through the designated nozzle pipe and is ejected, thereby realizing flexible conversion of the spraying mode.

[0003] However, during the shutdown process, the device needs to close the spray pipe to prevent the water flow from impacting the nozzle pipe that has not yet been installed, which seriously restricts the fire extinguishing efficiency of the device. Summary of the Invention

[0004] To address the technical problem in the prior art of needing to cut off the water flow when switching the sprinkler mode, an embodiment of the present invention provides an automatic fire sprinkler device with a variable spray mode, comprising: A carrying shell, fixedly arranged on an external carrying mechanism; An output tube is rotatably mounted on the bottom of the carrier shell. The inner cavity of the output tube is shaped like a prism, and the top port of the output tube is connected to the inner cavity of the carrier shell. The hollow shaft is movably inserted into the inner cavity of the bearing shell, and the bottom end of the inner tube body of the hollow shaft is movably plugged into the output tube. The bottom end of the inner tube body matches the shape of the inner cavity of the output tube and is used to drive the output tube to rotate; The cavity between the outer tube body and the inner tube body of the hollow shaft is a sandwich cavity, which connects the inner cavity of the bearing shell with the external water supply equipment for transmitting aqueous solution; A plurality of guide notches are provided at the bottom end of the inner tube body. When the depth of the bottom end of the inner tube body inserted into the inner cavity of the output tube is less than the length of the guide notches, the guide notches connect the output tube with the inner cavity of the carrying shell. an atomizing module, disposed on the carrying housing and used for atomizing the aqueous solution; The carrier is fixedly mounted on the output tube, the outer contour of the carrier is cylindrical, the lower end surface of the carrier abuts against the bottom wall of the inner cavity of the carrier shell, and the carrier is connected to the atomization module; The driving module is arranged on the bearing shell and is connected to the hollow shaft to control the extension and rotation of the hollow shaft.

[0005] Furthermore, the atomization module includes: A plurality of guide channels are provided on the circumferential side wall of the carrier body. The guide channels are spirally arranged along the axial direction of the carrier body. Ports at both ends of the guide channels are exposed to the end faces of both ends of the carrier body respectively, and are used to transmit aqueous solution; A plurality of baffles are fixedly arranged on the circumferential inner wall of the bearing shell, with the bottom of the baffles abutting against the top end surface of the bearing body, and the positions of the baffles correspond one-to-one with the top ports of the plurality of diversion channels, and are used to close the top ports of the diversion channels; The elastic sleeve is movably mounted on the carrier, the circumferential inner wall of the elastic sleeve is tightly fitted with the circumferential outer wall of the carrier, the elastic sleeve is fixedly connected to the inner wall of the carrier shell, and the elastic sleeve is an elastic tubular member; The atomizing hood is detachably mounted on the bottom of the carrying shell. The atomizing hood is trumpet-shaped, with the top end of the atomizing hood with a larger diameter abutting against the bottom surface of the carrying shell, and the bottom end of the output tube plugging into the bottom end of the atomizing hood with a smaller diameter. A plurality of water outlets are provided at the bottom of the carrying shell, any one of which is connected to the inner cavity of the carrying shell and the atomizing cover, and the positions of the plurality of water outlets and the bottom ports of the plurality of diversion channels correspond one to one to transmit the aqueous solution; A plurality of atomizing ports are opened at the bottom port of the atomizing cover, and the plurality of atomizing ports are evenly distributed on the circumferential outer side of the bottom port of the output pipe for atomizing the aqueous solution.

[0006] Furthermore, the atomization module also includes: An assembly hole is provided on the circumferential side wall of the bearing shell, and the assembly hole is located between the plurality of baffles and the top wall of the inner cavity of the bearing shell; A plug, which can be detachably assembled in the assembly hole and is used to seal the assembly hole; A plurality of balls are movably arranged in a plurality of guide channels, and the outer surfaces of the balls are evenly provided with friction patterns; The pressure plate is fixedly arranged on the circumferential side wall of the inner tube body, and is arranged radially along the hollow shaft. The width of the guide gap between the pressure plate and the bottom port of the outer tube body of the hollow shaft is greater than zero.

[0007] Furthermore, the radial cross-section of the inner cavity of the guide channel is C-shaped. When the ball is located in the inner cavity of the guide channel, the ball protrudes from the circumferential side wall surface of the carrier.

[0008] Furthermore, the driver module includes: The air supply assembly is arranged on the hollow shaft, and the top end of the inner tube body adopts a closed design. The air supply assembly connects the inner cavity of the inner tube body with the external air supply equipment for transmitting compressed air; Several electric telescopic rods are fixedly mounted on the bearing housing, and the execution ends of the electric telescopic rods are connected to the air supply assembly to drive the hollow shaft to extend and retract along the axial direction of the output pipe; The rotating assembly is arranged on the carrying mechanism and is connected to the hollow shaft for driving the hollow shaft to rotate.

[0009] Furthermore, the air supply assembly comprises: The assembly convex groove is fixedly arranged on the circumferential side wall of the outer tube body, and the central axis of the assembly convex groove is collinear with the central axis of the hollow shaft; A plurality of connecting tubes are fixedly arranged on the hollow shaft, one end of the connecting tube is connected to the inner cavity of the inner tube body, and the other end of the connecting tube is connected to the inner cavity of the assembly convex groove; The closing member is sleeved on the assembly convex groove, the closing member is rotatably connected to the assembly convex groove, the closing member is fixedly connected to the execution ends of the plurality of electric telescopic rods, and a closed cavity is formed between the closing member and the assembly convex groove; A plurality of vent connectors are fixedly mounted on the closure member, and the air outlet end of any vent connector is connected to the inner cavity of the assembly convex groove; Several high-pressure air pipes are respectively arranged on several ventilation joints. Any high-pressure air pipe is connected to the corresponding ventilation joint and the air supply equipment. The high-pressure air pipe is a hose for transmitting compressed air.

[0010] Furthermore, the rotating assembly comprises: The driven pulley is movably sleeved on the middle and upper part of the outer tube body, the driven pulley is rotatably connected to the bearing shell, the inner cavity of the driven pulley is prismatic in shape, and the inner cavity of the driven pulley matches the shape of the middle and upper part of the outer tube body, and is used to drive the hollow shaft to rotate; A driving pulley is rotatably mounted on the supporting mechanism; The transmission belt is mounted on the driving pulley and the driven pulley to drive the driving pulley and the driven pulley to rotate synchronously; The driving motor is fixedly arranged on the bearing mechanism, and the output shaft of the driving motor is connected to the driving pulley for driving the driving pulley to rotate.

[0011] Furthermore, the device also comprises: A rotary joint is provided at the top end of the hollow shaft, and an output end of the rotary joint is communicated with the interlayer cavity; The connecting hose is arranged on the rotary joint, and the connecting hose is connected with the input end of the rotary joint and the water supply equipment for transmitting the aqueous solution.

[0012] Furthermore, the device also comprises: A sprinkler plate is fixedly arranged in the bottom port of the output pipe, and the sprinkler plate matches the shape of the bottom port of the output pipe; A plurality of watering holes are provided at the bottom of the watering plate, and any one of the watering holes is communicated with the inner cavity of the output pipe.

[0013] An automatic fire sprinkler device with a variable spraying pattern according to an embodiment of the present invention has the following beneficial effects: 1. This device rotates to set an output tube at the bottom of the carrier shell, and fixes a carrier on the output tube, so that the carrier is rotated to be set on the bottom wall of the inner cavity of the carrier shell, and part of the structure of the atomization module is set on the carrier body. The atomization module is blocked or turned on by controlling the rotation of the carrier body to realize the switching of the spray mode of this device, so that the force on the carrier body is more uniform in the process of blocking the atomization module, effectively improving the problem that the carrier body is easily damaged by the impact of water flow, and realizing the switching of the spray mode without cutting off the water flow, avoiding adverse effects on the fire extinguishing efficiency of this device, and solving the defects existing in the prior art.

[0014] 2. This device opens a plurality of spirally arranged guide channels on the circumferential side wall of the carrier, so that the aqueous solution transmitted through the guide channel can be tangentially injected into the inner cavity of the atomizing hood, making it easier for it to spread on the circumferential side wall surface of the inner cavity of the atomizing hood under the action of centrifugal force to form a continuous liquid film, thereby enhancing the atomization effect of the aqueous solution output through the atomizing port; and when cleaning impurities attached to the inner surface of the guide channel, the user can control the rotation of the carrier, utilize the guide channel and the elastic sleeve to cooperate to drive the ball bearing to move along the guide channel, thereby removing impurities attached to the inner surface of the guide channel.

[0015] 3. This device achieves atomization of the aqueous solution by arranging an atomizing hood at the bottom of the carrying shell. When cleaning impurities attached to the inner wall surface of the diversion channel, it can also be used to temporarily collect balls rolling down through the bottom port of the diversion channel, thereby realizing the multi-purpose use of the atomizing hood and enhancing the convenience of use of the device.

[0016] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an assembly diagram according to an embodiment of the present invention; Figure 2 is a cross-sectional view according to an embodiment of the present invention (rotating components are hidden); Figure 3 for Figure 2 A partial enlarged schematic diagram of area A in the middle; Figure 4 Schematic diagram of the assembly of an atomization module according to an embodiment of the present invention.

[0018] Description of reference numerals: 1-carrying body, 2-output pipe, 3-hollow shaft, 31-inner tube body, 311-flow guide notch, 32-outer tube body, 33-sandwich cavity, 34-reinforcement rib, 41-flow guide channel, 42-baffle, 43-elastic sleeve, 44-atomizing cover, 45-atomizing port, 46-plug, 47-pressing plate, 5-carrying body, 611-assembly protrusion, 612-connecting pipe, 613-closure, 614-venting joint, 62-electric telescopic rod, 7-rotating joint, 8-sprinkler plate, 81-sprinkler hole, 9-carrying mechanism. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0020] The foregoing and other technical aspects, features, and benefits of the present invention will be more clearly understood in the following detailed description of the embodiments, which is accompanied by reference to the accompanying drawings. Directional terms such as up, down, left, right, front, and back, used in the following embodiments, are merely references to the accompanying drawings. Therefore, the directional terms used are for illustrative purposes only and are not intended to limit the present invention. Furthermore, identical reference numerals throughout the embodiments denote identical elements.

[0021] First, combine Figures 1 to 4 An automatic fire sprinkler device with a variable spraying pattern according to an embodiment of the present invention is described, which is used for fire fighting and has a wide range of application scenarios.

[0022] Specifically, if Figure 1 、 2As shown, an automatic fire-fighting water sprinkler with a variable spraying mode according to an embodiment of the present invention comprises: a carrying shell 1, an output pipe 2, a hollow shaft 3, a carrying body 5, an atomizing module and a driving module; the carrying shell 1 is fixedly arranged on an external carrying mechanism 9; the output pipe 2 is rotatably arranged at the bottom of the carrying shell 1, the inner cavity shape of the output pipe 2 is a prism, and the top port of the output pipe 2 is connected with the inner cavity of the carrying shell 1; the hollow shaft 3 passes through the inner cavity top wall of the carrying shell 1 and is movably inserted into the inner cavity of the carrying shell 1, and a sealing mechanism is provided at the connection between the hollow shaft 3 and the inner cavity top wall of the carrying shell 1, the bottom end of the inner tube body 31 of the hollow shaft 3 is movably plugged into the output pipe 2, and the bottom end of the inner tube body 31 matches the inner cavity shape of the output pipe 2, which is used to drive the output pipe 2 to rotate; the cavity between the outer tube body 32 and the inner tube body 31 of the hollow shaft 3 is an interlayer cavity 33, and the interlayer cavity 33 connects the inner cavity of the carrying shell 1 with the external water supply equipment, which is used to To transmit the aqueous solution, preferably, in this embodiment, a plurality of reinforcing ribs 34 are provided in the interlayer cavity 33, and any one of the reinforcing ribs 34 is fixedly connected to the outer tube body 32 and the inner tube body 31, so as to fix the outer tube body 32 and the inner tube body 31 into one; a plurality of guide notches 311 are provided at the bottom end of the inner tube body 31, and when the depth of the bottom end of the inner tube body 31 inserted into the inner cavity of the output tube 2 is less than the length of the guide notch, the guide notch 311 connects the output tube 2 with the inner cavity of the carrying shell 1; the atomization module is provided on the carrying shell 1 for atomizing the aqueous solution; the carrying body 5 is fixedly sleeved on the output tube 2, and the lower end face of the carrying body 5 abuts against the bottom wall of the inner cavity of the carrying shell 1, the outer contour of the carrying body 5 is cylindrical, the central axis of the carrying body 5 is collinear with the central axis of the output tube 2, and the carrying body 5 is connected to the atomization module; the driving module is provided on the carrying shell 1, and the driving module is connected to the hollow shaft 3 for controlling the extension and rotation of the hollow shaft 3.

[0023] Further, if Figure 1 、 24, the atomization module includes: a number of guide channels 41, a number of baffles 42, an elastic sleeve 43, an atomization cover 44, a number of water outlets (not shown in the figure) and a number of atomization ports 45; a number of guide channels 41 are opened on the circumferential side wall of the carrier 5, and the guide channels 41 are spirally arranged along the axial direction of the carrier 5. The ports at both ends of the guide channels 41 are respectively exposed to the end faces at both ends of the carrier 5 for transmitting aqueous solution; a number of baffles 42 are fixedly arranged on the circumferential inner wall of the carrier shell 1, and the bottom of the baffle 42 abuts against the top end face of the carrier 5. The positions of the baffles 42 and the top ports of the guide channels 41 correspond one to one to close the top ports of the guide channels 41; the elastic sleeve 43 is movably sleeved on the carrier 5, and the circumferential inner wall of the elastic sleeve 43 abuts against the circumferential inner wall of the carrier 5 It fits tightly against the outer wall, and the elastic sleeve 43 is fixedly connected to the inner wall of the carrying shell 1. The elastic sleeve 43 is an elastic tubular part; the atomizing hood 44 can be detachably assembled at the bottom of the carrying shell 1. The atomizing hood 44 is trumpet-shaped, and the top port with a larger diameter of the atomizing hood 44 abuts against the bottom surface of the carrying shell 1, and the bottom port of the output pipe 2 is plugged into the bottom port with a smaller diameter of the atomizing hood 44; several water outlets are opened at the bottom of the carrying shell 1, and any water outlet connects the inner cavity of the carrying shell 1 and the atomizing hood 44. The positions of the several water outlets and the bottom ports of the several guide channels 41 correspond one to one, and are used to transmit aqueous solutions; several atomizing ports 45 are opened at the bottom port of the atomizing hood 44, and the several atomizing ports 45 are evenly distributed on the circumferential outside of the bottom port of the output pipe 2, and are used to atomize aqueous solutions.

[0024] Further, if Figure 1 、 2 4, the atomization module further includes: an assembly hole (not shown in the figure), a plug 46, a plurality of balls (not shown in the figure) and a pressure plate 47; the assembly hole is opened on the circumferential side wall of the carrying shell 1, and the assembly hole is located between the plurality of baffles 42 and the top wall of the inner cavity of the carrying shell 1; the plug 46 is detachably assembled in the assembly hole to seal the assembly hole; a plurality of balls are movably arranged in a plurality of guide channels 41, and the outer surface of the balls is uniformly provided with a friction pattern (not shown in the figure); the pressure plate 47 is fixedly arranged on the circumferential side wall of the inner tube body 31, and the pressure plate 47 is arranged along the radial direction of the hollow shaft 3, and the width of the guide gap (not shown in the figure) between the pressure plate 47 and the bottom port of the outer tube body 32 of the hollow shaft 3 is greater than zero.

[0025] Further, if Figure 1 、 2 As shown in Figures 4 and 5, the radial cross-section of the inner cavity of the guide channel 41 is C-shaped. When the ball is located in the inner cavity of the guide channel 41, the ball protrudes from the circumferential side wall surface of the carrier 5.

[0026] Further, if Figure 1 、2 4, the driving module includes: an air supply assembly, a plurality of electric telescopic rods 62 and a rotating assembly; the air supply assembly is arranged on the hollow shaft 3, and the top end of the inner tube body 31 adopts a closed design. The air supply assembly connects the inner cavity of the inner tube body 31 with the external air supply equipment for transmitting compressed air; a plurality of electric telescopic rods 62 are fixedly arranged on the bearing shell 1, and the execution ends of the plurality of electric telescopic rods 62 are connected to the air supply assembly for driving the hollow shaft 3 to extend and retract along the axial direction of the output pipe 2; the rotating assembly is arranged on the bearing mechanism 9, and the rotating assembly is connected to the hollow shaft 3 for driving the hollow shaft 3 to rotate.

[0027] Further, if Figures 1-3 As shown, the air supply assembly includes: an assembly convex groove 611, a plurality of connecting pipes 612, a closing piece 613, a plurality of ventilation joints 614 and a plurality of high-pressure air pipes (not shown in the figure); the assembly convex groove 611 is fixedly arranged on the circumferential side wall of the outer tube body 32, and the central axis of the assembly convex groove 611 is collinear with the central axis of the hollow shaft 3; a plurality of connecting pipes 612 are fixedly arranged on the hollow shaft 3, one end of the connecting pipe 612 is connected to the inner cavity of the inner tube body 31, and the other end of the connecting pipe 612 is connected to the inner cavity of the assembly convex groove 611; the closing piece 613 is sleeved on the assembly convex groove 611, and the closing piece 613 is rotatably connected to the assembly convex groove 611. A sealing mechanism is provided at the rotating connection between the closure member 613 and the assembly groove 611, and a closed cavity is formed between the closure member 613 and the assembly groove 611. The closure member 613 is fixedly connected to the execution ends of several electric telescopic rods 62, so that the electric telescopic rods 62 can drive the hollow shaft to extend and retract along the axial direction of the output pipe 2; several vent joints 614 are fixedly provided on the closure member 613, and the air outlet end of any vent joint 614 is connected to the inner cavity of the assembly groove 611; several high-pressure air pipes are respectively provided on several vent joints 614, and any high-pressure air pipe is connected to the corresponding vent joint 614 and the air supply equipment. The high-pressure air pipe is a hose for transmitting compressed air.

[0028] Further, if Figure 1 、 2As shown, the rotating assembly includes: a driven pulley (not shown in the figure), a driving pulley (not shown in the figure), a transmission belt (not shown in the figure) and a driving motor (not shown in the figure); the driven pulley is movably sleeved on the middle and upper part of the outer tube body 32, and the driven pulley is rotatably connected to the bearing shell 1. The outer contour of the middle and upper part of the outer tube body 32 is a prism, and the inner cavity shape of the driven pulley is a prism matching the shape of the middle and upper part of the outer tube body 32, so as to ensure that the driven pulley can drive the hollow shaft 3 to rotate circumferentially without restricting the axial telescopic displacement of the hollow shaft 3; The driving pulley is rotatably arranged on the supporting mechanism 9; the transmission belt is mounted on the driving pulley and the driven pulley to drive the driving pulley and the driven pulley to rotate synchronously; the driving motor is fixedly arranged on the supporting mechanism 9, and the output shaft of the driving motor is connected to the driving pulley to drive the driving pulley to rotate. Preferably, in this embodiment, the driving pulley and the driven pulley both use synchronous pulleys, and the transmission belt preferably uses a synchronous belt to ensure transmission accuracy; the driving motor preferably uses a reduction motor composed of a servo motor and a reducer to achieve precise control of the rotation angle of the supporting body.

[0029] Further, if Figure 1 、 2 As shown, the device further includes: a rotary joint 7 and a connecting hose (not shown in the figure); the rotary joint 7 is arranged at the top end of the hollow shaft 3, and the output end of the rotary joint 7 is connected to the interlayer cavity 33; the connecting hose is arranged on the rotary joint 7, and the connecting hose is connected to the input end of the rotary joint 7 and the water supply equipment for transmitting the aqueous solution.

[0030] Further, if Figure 1 、 2 4, the device further comprises: a sprinkler plate 8 and a plurality of sprinkler holes 81; the sprinkler plate 8 is fixedly arranged in the bottom port of the output pipe 2, and the shape of the sprinkler plate 8 matches the shape of the bottom port of the output pipe 2; a plurality of sprinkler holes 81 are opened at the bottom of the sprinkler plate 8, and any sprinkler hole 81 is connected to the inner cavity of the output pipe 2.

[0031] When the device is in the first spraying mode, the bottom end of the inner tube body 31 is not fully inserted into the inner cavity of the output tube 2, the guide gap 311 is in a state of connecting the inner cavity of the output tube 2 and the inner cavity of the supporting shell 1, and the guide channel 41 is blocked and closed by the baffle 42. The water supply equipment inputs the aqueous solution into the interlayer cavity 33 of the hollow shaft 3 through the connecting hose and the rotary joint, so that the aqueous solution flows out through the guide gap into the inner cavity of the supporting shell 1, and then flows into the inner cavity of the output tube 2 through the guide gap 311, and finally sprays out through the sprinkler hole 81 opened on the sprinkler plate 8.

[0032] When the device switches from the first spraying mode to the second spraying mode, the electric telescopic rod 62 drives the hollow shaft 3 to move a certain distance along the axial direction of the output pipe 2, and the guide notch 311 is completely inserted into the inner cavity of the output pipe 2. At the same time, the driving motor drives the active pulley to rotate a certain angle, and then uses the transmission belt to drive the driven pulley and the hollow shaft 3 to rotate a certain angle synchronously. During the rotation process, the hollow shaft 3 drives the carrier 5 to rotate a certain angle, and finally the top port of the guide channel 41 opened on the carrier 5 is aligned with the gap between the baffles 42, and the bottom port of the guide channel 41 is aligned with the water outlet, so that the guide channel 41 connects the inner cavity of the carrier shell 1 with the inner cavity of the atomizing cover 44, so that the water solution stored in the inner cavity of the carrier shell 1 The liquid is injected tangentially into the truncated cone-shaped inner cavity of the atomizing hood 44 through the guide channel 41; then, the aqueous solution injected into the inner cavity of the atomizing hood 44 rotates along the circumference of the atomizing hood 44, and spreads on the circumferential inner wall surface of the atomizing hood 44 under the action of centrifugal force to form a continuous liquid film, and finally is sprayed out through the atomizing port 45 under the action of pressure and atomized; at the same time, the air supply equipment injects compressed air into the inner cavity of the assembly groove 611 through the high-pressure air pipe and the vent joint 614, and then the compressed air enters the inner cavity of the inner tube body 31 through the connecting pipe 612, and finally is sprayed out through the sprinkler hole 81 opened on the sprinkler plate 8, so as to utilize the compressed air to increase the axial momentum of the small droplets of the aqueous solution sprayed out through the atomizing port 45 in atomization, drive them to spray toward the fire source, and enhance their wind resistance.

[0033] When cleaning the impurities accumulated in the guide channel 41, the user can open the assembly hole by removing the plug 46, and then throw a ball into the inner cavity of the carrier shell 1 through the assembly hole, so that it rolls along the gap between the baffles 42 to the top port of the guide channel 41, and then the rotating assembly drives the hollow shaft 3 to drive the carrier 5 to rotate a certain angle, so that the top port of the next guide channel 41 is aligned with the assembly hole, and the user throws the second ball into the inner cavity of the carrier shell 1 through the assembly hole until a ball is thrown into the top port position of each guide channel 41. In the process of the user throwing the ball into the inner cavity of the carrier shell 1, the bottom surface of the pressure plate 47 is The distance between the surface and the top surface of the baffle 42 is not greater than the diameter of the ball and not less than the radius of the ball, so that the pressure plate 47 is used to limit the ball; then the electric telescopic rod 62 drives the hollow shaft 3 to move downward, and the hollow shaft 3 drives the pressure plate 47 to press the ball into the inner cavity of the guide channel 41. At the same time, the rotating component drives the carrier 5 to rotate again, so that the ball is pushed by the guide channel 41 and moves toward the bottom port of the guide channel 41 along the guide channel 41. In this process, the ball rotates under the action of the friction between it and the inner annular surface of the elastic sleeve 43, and the scale and other impurities attached to the inner surface of the guide channel 41 are worn away. To prevent excessive accumulation of impurities from clogging the inner surface of the guide channel 41; after the balls move to the bottom port of the guide channel 41, as the carrier 5 rotates further, the balls roll down through the water outlet into the cavity between the output pipe 2 and the atomizing cover 44. When the user removes the atomizing cover 44, after the bottom end of the output pipe 2 is separated from the bottom port of the atomizing cover 44, the balls flow out through the bottom port of the atomizing cover 44, making it convenient for the user to collect the balls; compared to removing the carrier 5 from the carrier shell 1 and cleaning the guide channel 41 opened on the carrier 5, this solution only requires removing the plug 46 and throwing multiple balls into the carrier shell 1 through the assembly hole. The hollow shaft is then used to drive the pressure plate to press multiple balls into several guide channels 41 respectively. By controlling the rotation of the carrier and utilizing the friction between the balls and the elastic sleeve 43, the balls are driven by the guide channel 41 and rotate along the guide displacement of the guide channel 41, thereby removing impurities attached to the inner wall of the guide channel 41, and finally the balls will fall into the cavity between the atomizing hood 44 and the output pipe 2 through the bottom port of the guide channel 41. The atomizing hood 44 temporarily stores the balls, and the user can recycle the balls by removing the atomizing hood 44. The cleaning operation is more convenient, saving the labor cost of cleaning and maintenance of the device. Above, refer to Figures 1 to 4 An automatic fire sprinkler system with a variable spraying pattern according to an embodiment of the present invention is described, which has the following beneficial effects: 1. The device is configured by rotatably setting an output tube 2 at the bottom of the carrier shell 1 and fixing a carrier body 5 on the output tube 2, thereby rotatably setting the carrier body 5 on the bottom wall of the inner cavity of the carrier shell 1, and setting part of the structure of the atomization module on the carrier body 5. The atomization module is blocked or turned on by controlling the rotation of the carrier body 5 to realize the switching of the spraying mode of the device, so that the force on the carrier body 5 is more uniform in the process of blocking the atomization module, effectively improving the problem that the carrier body 5 is easily damaged by the impact of water flow, realizing the switching of the spraying mode without cutting off the water flow, avoiding adverse effects on the fire extinguishing efficiency of the device, and solving the defects in the prior art.

[0034] 2. This device provides a plurality of spirally arranged guide channels 41 on the circumferential side wall of the carrier body 5, so that the aqueous solution transmitted through the guide channels 41 can be tangentially injected into the inner cavity of the atomizing hood 44, making it easier for the aqueous solution to spread on the circumferential side wall surface of the inner cavity of the atomizing hood 44 under the action of centrifugal force to form a continuous liquid film, thereby enhancing the atomization effect of the aqueous solution output through the atomizing port 45; and when cleaning impurities attached to the inner surface of the guide channel 41, the user can control the rotation of the carrier body 5, utilize the guide channel 41 and the elastic sleeve 43 to drive the ball bearing to rotate along the guide displacement of the guide channel 41 at the same time, thereby peeling off the impurities attached to the inner surface of the guide channel 41.

[0035] 3. This device achieves atomization of the aqueous solution by arranging an atomizing hood 44 at the bottom of the carrying shell 1. When cleaning impurities attached to the inner wall surface of the guide channel 41, it can also be used to temporarily collect balls rolling down through the bottom port of the guide channel 41, thereby achieving multiple uses of the atomizing hood 44 and enhancing the convenience of use of the device.

[0036] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0037] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. An automatic fire sprinkler with a variable spraying pattern, characterized in that: Include: A carrying shell, fixedly arranged on an external carrying mechanism; an output tube rotatably disposed at the bottom of the carrying shell, wherein the inner cavity of the output tube is shaped like a prism, and the top port of the output tube is in communication with the inner cavity of the carrying shell; A hollow shaft is movably inserted into the inner cavity of the carrying shell, the bottom end of the inner tube body of the hollow shaft is movably plugged into the output tube, and the bottom end of the inner tube body matches the shape of the inner cavity of the output tube, so as to drive the output tube to rotate; The cavity between the outer tube body and the inner tube body of the hollow shaft is a sandwich cavity, and the sandwich cavity communicates with the inner cavity of the bearing shell and the external water supply equipment for transmitting aqueous solution; A plurality of guide notches are provided at the bottom end of the inner tube body, and when the depth of the bottom end of the inner tube body inserted into the inner cavity of the output tube is less than the length of the guide notches, the guide notches connect the output tube with the inner cavity of the carrying shell; an atomizing module, disposed on the carrying housing and configured to atomize the aqueous solution; A carrier, fixedly sleeved on the output tube, the outer contour of the carrier is cylindrical, the lower end surface of the carrier abuts against the bottom wall of the inner cavity of the carrier shell, and the carrier is connected to the atomization module; A driving module is provided on the carrying shell, and the driving module is connected to the hollow shaft, and is used for controlling the extension and rotation of the hollow shaft.

2. An automatic fire sprinkler with a variable spraying pattern as claimed in claim 1, characterized in that: The atomization module comprises: A plurality of guide channels are provided on the circumferential side wall of the carrier, the guide channels are spirally arranged along the axial direction of the carrier, and ports at both ends of the guide channels are respectively exposed to the end surfaces at both ends of the carrier for transmitting the aqueous solution; a plurality of baffles fixedly disposed on the circumferential inner wall of the bearing shell, with the bottoms of the baffles abutting against the top end surface of the bearing body, the plurality of baffles corresponding one-to-one to the positions of the top ports of the plurality of diversion channels, and used to close the top ports of the diversion channels; An elastic sleeve, movably sleeved on the carrier, wherein the circumferential inner wall of the elastic sleeve is tightly fitted with the circumferential outer wall of the carrier, and the elastic sleeve is fixedly connected to the inner wall of the carrier shell, and the elastic sleeve is an elastic tubular member; The atomizing hood is detachably mounted on the bottom of the carrying shell. The atomizing hood is trumpet-shaped, with the top end of the atomizing hood with a larger diameter abutting against the bottom surface of the carrying shell, and the bottom end of the output tube plugging into the bottom end of the atomizing hood with a smaller diameter. A plurality of water outlets are provided at the bottom of the carrying shell, any one of the water outlets being in communication with the carrying shell and the inner cavity of the atomizing cover, and the plurality of water outlets corresponding to the positions of the bottom ports of the plurality of diversion channels in a one-to-one manner, for transmitting the aqueous solution; A plurality of atomization ports are opened at the bottom port of the atomization cover, and the plurality of atomization ports are evenly distributed on the circumferential outer side of the bottom port of the output pipe, and are used for atomizing the aqueous solution.

3. An automatic fire sprinkler with a variable spraying pattern as claimed in claim 2, characterized in that: The atomization module further comprises: an assembly hole, which is formed on a circumferential side wall of the bearing shell, and is located between the plurality of baffles and the top wall of the inner cavity of the bearing shell; A plug, detachably assembled in the assembly hole, for sealing the assembly hole; A plurality of balls are movably arranged in the plurality of diversion channels, and the outer surfaces of the balls are uniformly provided with friction patterns; A pressure plate is fixedly arranged on the circumferential side wall of the inner tube body, the pressure plate is arranged along the radial direction of the hollow shaft, and the width of the guide gap between the pressure plate and the bottom port of the outer tube body of the hollow shaft is greater than zero.

4. An automatic fire sprinkler with a variable spraying pattern as claimed in claim 3, characterized in that: The radial cross-section of the inner cavity of the guide channel is C-shaped. When the balls are located in the inner cavity of the guide channel, the balls protrude from the circumferential side wall surface of the carrier.

5. The automatic fire sprinkler with a variable spraying pattern as claimed in claim 1, characterized in that: The driving module includes: An air supply assembly is provided on the hollow shaft, the top end of the inner tube body adopts a closed design, and the air supply assembly connects the inner cavity of the inner tube body with an external air supply device for transmitting compressed air; A plurality of electric telescopic rods are fixedly provided on the bearing housing, and the execution ends of the electric telescopic rods are connected to the air supply assembly, and are used to drive the hollow shaft to extend and retract along the axial direction of the output pipe; A rotating assembly is arranged on the supporting mechanism, and the rotating assembly is connected to the hollow shaft and is used for driving the hollow shaft to rotate.

6. An automatic fire sprinkler with a variable spraying pattern as claimed in claim 5, characterized in that: The air supply assembly comprises: An assembly convex groove is fixedly provided on the circumferential side wall of the outer tube body, and the central axis of the assembly convex groove is collinear with the central axis of the hollow shaft; A plurality of connecting tubes are fixedly arranged on the hollow shaft, one end of each connecting tube is communicated with the inner cavity of the inner tube body, and the other end of each connecting tube is communicated with the inner cavity of the assembly convex groove; a closing member, sleeved on the assembly convex groove, the closing member being rotatably connected to the assembly convex groove, the closing member being fixedly connected to the execution ends of the plurality of electric telescopic rods, and a closed cavity being formed between the closing member and the assembly convex groove; A plurality of vent connectors are fixedly arranged on the closure member, and the air outlet end of any of the vent connectors is communicated with the inner cavity of the assembly convex groove; A plurality of high-pressure air pipes are respectively arranged on the plurality of ventilation joints. Any one of the high-pressure air pipes is connected to the corresponding ventilation joint and the air supply equipment. The high-pressure air pipe is a hose for transmitting compressed air.

7. An automatic fire sprinkler with a variable spraying pattern as claimed in claim 5, characterized in that: The rotating assembly comprises: A driven pulley is movably sleeved on the middle and upper part of the outer tube body, the driven pulley is rotatably connected to the bearing shell, the inner cavity of the driven pulley is shaped like a prism, and the inner cavity of the driven pulley matches the shape of the middle and upper part of the outer tube body, and is used to drive the hollow shaft to rotate; a driving pulley, rotatably disposed on the supporting mechanism; A transmission belt is sleeved on the driving pulley and the driven pulley, and is used to drive the driving pulley and the driven pulley to rotate synchronously; The driving motor is fixedly arranged on the supporting mechanism, and the output shaft of the driving motor is connected to the driving pulley for driving the driving pulley to rotate.

8. An automatic fire sprinkler with a variable spraying pattern as claimed in claim 1, characterized in that: Also includes: A rotary joint is provided at the top end of the hollow shaft, and an output end of the rotary joint is communicated with the interlayer cavity; A connecting hose is provided on the rotary joint, and the connecting hose is connected to the input end of the rotary joint and the water supply device for transmitting the aqueous solution.

9. An automatic fire sprinkler with a variable spraying pattern as claimed in claim 1, characterized in that: Also includes: a sprinkler plate, fixedly disposed in the bottom port of the output pipe, wherein the sprinkler plate matches the shape of the bottom port of the output pipe; A plurality of watering holes are provided at the bottom of the watering plate, and any one of the watering holes is communicated with the inner cavity of the output pipe.

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