A portable refrigeration spray intelligent cooling device

Abstract

This invention belongs to the field of spray cooling technology, specifically a portable intelligent cooling spray device, comprising a handheld housing; a motor is installed inside the air inlet of the handheld housing; fan blades are fixedly connected to the output end of the motor; a spiral tube is installed inside the handheld housing; a flow divider is installed inside the air outlet of the handheld housing; multiple atomizing nozzles are fixedly connected around the outer ring of the flow divider; a water pump is fixedly connected to the bottom center of the handheld housing; a water bottle is installed on the bottom center of the handheld housing; the motor drives the fan blades to rotate and generate airflow, while the water pump draws water from the water bottle and delivers it to the spiral tube to cool the airflow, creating a low-temperature airflow. The water is sprayed from the multiple atomizing nozzles to form a water mist, which mixes with the low-temperature airflow and is then sprayed out from the air outlet of the handheld housing; the water mist and low-temperature airflow coat the surface of the patient, effectively reducing the patient's core body temperature.

Description

Technical Field

[0001] This invention belongs to the field of spray cooling technology, specifically a portable intelligent cooling spray device. Background Technology

[0002] Heatstroke is the most severe form of heat illness, in which the patient's core body temperature can rapidly rise to above 40°C, accompanied by central nervous system dysfunction and multiple organ failure. Its pathogenesis is closely related to heat accumulation, systemic inflammatory response, and coagulation dysfunction in hot and humid environments. The core of clinical treatment is rapid cooling, with the goal of lowering the core body temperature to below 39°C within 30 minutes to reduce the risk of organ damage. However, the inability to provide timely cooling to patients often greatly increases the mortality rate.

[0003] Existing methods for reducing fever mainly include: external physical cooling: using ice water immersion, cold water immersion, cold water sponging, fanning to cool down, etc.; internal cooling technology: such as blood purification therapy, which has a high cooling rate; and drug-assisted: fluid replacement therapy.

[0004] Existing effective methods for rapidly cooling down heatstroke patients all require certain conditions, such as ice water, cooling pools, and blood purification devices. Simple cooling methods often fail to meet the cooling requirements. When heatstroke occurs, the conditions for effective cooling are often not available on-site, and professional personnel are required to perform the procedure. This causes heatstroke patients to miss the optimal time for cooling treatment, leading to a worsening of their condition or even death.

[0005] Therefore, the present invention provides a portable intelligent cooling spray device. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A portable intelligent cooling spray device according to this invention includes a handheld housing; a motor is installed inside the air inlet of the handheld housing; a fan blade is fixedly connected to the output end of the motor; a spiral tube is installed inside the handheld housing; a flow divider is installed inside the air outlet of the handheld housing; multiple atomizing nozzles are fixedly connected around the outer ring of the flow divider; a water pump is fixedly connected to the bottom center of the handheld housing; a water bottle is installed on the bottom center of the handheld housing; the water inlet of the water pump is connected to the interior of the water bottle; the water outlet of the water pump is connected to the other end of the spiral tube; a three-way valve is fixedly connected to one end of the flow divider near the handheld housing; the two ports of the three-way valve are respectively connected to the interior of the flow divider and the end of the spiral tube; the other end of the three-way valve is connected to the water bottle.

[0008] Preferably, a heat-insulating shell is fixedly attached to the bottom center of the handheld housing; a heat dissipation vent is provided on the side of the heat-insulating shell near the water bottle; a semiconductor cooling chip is fixedly attached inside the heat-insulating shell; the hot end of the semiconductor cooling chip faces the heat dissipation vent of the heat-insulating shell; a serpentine tube is provided inside the heat-insulating shell; the cold end of the semiconductor cooling chip faces the serpentine tube; and the two ends of the serpentine tube are respectively connected to the water outlet of the water pump and the end of the spiral tube via flexible hoses.

[0009] Preferably, a heat sink is fixedly connected inside the heat dissipation vent of the heat insulation shell; the heat sink is in contact with the hot end of the semiconductor cooling chip.

[0010] Preferably, a connector is fixedly attached to the bottom center of the handheld housing; a connection port is fixedly attached to the top center of the connector, and the top of the connection port is connected to the water inlet of the water pump via a flexible hose; a suction tube is sleeved on the bottom of the connection port of the connector; a connecting ring is rotatably installed on the outer ring of the water bottle mouth; and the inner ring of the connecting ring is threadedly connected to the bottom outer ring of the connector.

[0011] Preferably, the top of the connector has an annular cavity; the annular cavity is fitted around the outer ring of the connector's connection port; a return port communicating with the annular cavity is fixedly connected to one side of the top of the connector; one end of the three-way valve is connected to the return port via a flexible hose.

[0012] Preferably, a fixed cone is provided inside the air inlet of the handheld housing; the tip of the fixed cone faces the middle of the handheld housing; a movable cone is provided at the other end of the fixed cone; the motor is fixedly installed inside the fixed cone; a connecting shaft is fixedly connected to the output shaft of the motor; the other end of the connecting shaft is bolted to the fan blade; the connecting shaft rotatably passes through the movable cone.

[0013] Preferably, the outer ring of the movable cone is fixed with multiple guide vanes; the movable cone and the connecting shaft are locked together by multiple screws.

[0014] Preferably, a convex ring is fixedly connected to the outer ring of the movable cone near the fixed cone; a rotating ring is slidably installed on the outer ring of the convex ring; and the rotating ring is fixedly connected to the fixed cone by a plurality of screws.

[0015] Preferably, the bottom surface of the insulation shell is provided with a U-shaped frame; a fixing screw is rotatably installed on one side of the U-shaped frame; and a slot matching the fixing screw is opened on the other side of the U-shaped frame.

[0016] Preferably, a universal ball joint is provided between the U-shaped frame and the bottom surface of the insulation shell.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The portable cooling spray intelligent cooling device of the present invention comprises a motor, fan blades, a spiral tube, a distributor head, atomizing nozzles, a water pump, and a water bottle. The motor drives the fan blades to rotate and form an airflow. Simultaneously, the water pump draws clean water from the water bottle and delivers it to the spiral tube to cool the airflow and form a low-temperature airflow. Then, the clean water is delivered along the spiral tube to the distributor head and sprayed out from multiple atomizing nozzles to form a water mist. The water mist mixes with the low-temperature airflow and is sprayed out from the air outlet of the handheld casing. The water mist and the low-temperature airflow cool the patient's body by covering the patient's surface, effectively reducing the patient's core body temperature.

[0019] 2. The portable cooling spray intelligent cooling device of the present invention comprises an insulating shell, a semiconductor cooling chip, and a serpentine tube. After the water pump draws clean water from the water bottle, the clean water is transported into the serpentine tube. At the same time, the semiconductor cooling chip is powered on, and the cold end of the semiconductor cooling chip absorbs heat, causing the temperature of the serpentine tube to drop, which in turn lowers the temperature of the clean water inside, forming low-temperature water. By freezing and cooling the clean water, the temperature of the water mist and airflow is further reduced, thereby more effectively lowering the patient's core body temperature. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a diagram showing the internal structure of the handheld housing in this invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the present invention with the handheld casing removed;

[0024] Figure 4 This is a three-dimensional structural diagram of the fixed cone and the movable cone in this invention;

[0025] Figure 5 This is a cross-sectional view of the fixed cone and the movable cone in this invention;

[0026] Figure 6 This is a diagram showing the internal structure of the insulation shell in this invention;

[0027] Figure 7 This is a cross-sectional view of the connector in this invention;

[0028] Figure 8 This is a three-dimensional structural diagram of the U-shaped frame in this invention;

[0029] In the diagram: 1. Handheld housing; 2. Motor; 3. Fan blade; 4. Spiral tube; 5. Diverter head; 6. Atomizing nozzle; 7. Water pump; 8. Water bottle; 9. Insulation shell; 10. Semiconductor cooling chip; 11. Serpentine tube; 12. Heat sink; 13. Connector; 14. Water suction pipe; 15. Connecting ring; 16. Three-way valve; 17. Annular cavity; 18. Fixed cone; 19. Movable cone; 20. Connecting shaft; 21. Support column; 22. Guide vane; 23. Rotating ring; 24. U-shaped frame; 25. Fixing screw; 26. Slot; 27. Universal ball joint. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figures 1 to 5 As shown in the figure, a portable cooling spray intelligent cooling device according to an embodiment of the present invention includes a handheld housing 1; a motor 2 is installed inside the air inlet of the handheld housing 1; a fan blade 3 is fixedly connected to the output end of the motor 2; a spiral tube 4 is installed inside the handheld housing 1; a flow divider 5 is installed inside the air outlet of the handheld housing 1; multiple atomizing nozzles 6 are fixedly connected around the outer ring of the flow divider 5; one end of the spiral tube 4 is connected to the flow divider 5; a water pump 7 is fixedly connected to the bottom middle part of the handheld housing 1; a water bottle 8 is installed on the bottom middle part of the handheld housing 1; the water inlet of the water pump 7 is connected to the interior of the water bottle 8; the water outlet of the water pump 7 is connected to the other end of the spiral tube 4; a three-way valve 16 is fixedly connected to one end of the flow divider 5 near the handheld housing 1; the two ports of the three-way valve 16 are respectively connected to the interior of the flow divider 5 and the end of the spiral tube 4; the other end of the three-way valve 16 is connected to the water bottle 8;

[0032] Specifically, the handheld housing 1 has a gun-shaped structure. A filter screen is fixedly connected inside the air inlet of the handheld housing 1. The bottom of the motor 2 is fixedly connected to the inner wall of the handheld housing 1 via a bracket. An inner cavity is opened inside the handle of the handheld housing 1, and a lithium battery is placed inside the cavity to provide power to the motor 2 and the water pump 7. A cover is provided on the side of the handle of the handheld housing 1 for replacing the lithium battery. A trigger-type switch is provided on the handle of the handheld housing 1, and the switch on the handle has three modes: off, low temperature air, and low temperature water mist air. This controls the switching of the motor 2, water pump 7, and three-way valve 16. The side of the diverter head 5 is fixedly installed to the inner wall of the handheld housing 1 via a bracket, so that the diverter head 5 is located in the middle of the air outlet of the handheld housing 1. An isolation cavity is opened on the bottom side of the middle of the handheld housing 1, and the water pump 7 is fixedly installed on the bottom surface inside the isolation cavity. The water bottle 8 is filled with clean water. The three-way valve 16 has three ports, and each pair can be switched between open and closed. The switching of the three-way valve 16 is controlled by the switch on the handle of the handheld housing 1.

[0033] When it is necessary to spray low-temperature water mist, switch the switch on the handle of the handheld housing 1 to the low-temperature water mist mode. At this time, the three-way valve 16 opens the connection between the spiral tube 4 and the distributor head 5, and closes the connection with the return port of the connector 13, so that low-temperature water enters the distributor head 5 and is then sprayed out by the atomizing nozzle 6 to form low-temperature water mist, thus blowing out low-temperature water mist.

[0034] When only low-temperature air needs to be emitted, the switch on the handle of housing 1 is switched to the low-temperature air setting. At this time, the three-way valve 16 closes the connection between the spiral tube 4 and the diverter head 5, while simultaneously opening the connection between the spiral tube 4 and the return port of connector 13. This allows the low-temperature water in the spiral tube 4 to cool the airflow. After passing through the three-way valve 16, the low-temperature water flows back into the annular cavity 17 of connector 13 and then back into the water bottle 8, thus only low-temperature air is emitted. The selection of two modes facilitates the choice during actual use, improves the applicability of the cooling device, and effectively reduces the use of clean water, saving water.

[0035] When a patient experiences heatstroke or other conditions requiring immediate cooling, the operator points the air outlet of the handheld housing 1 towards the patient, presses the switch to turn on the motor 2 and water pump 7. The motor 2 drives the fan blades 3 to rotate, drawing in outside air from the air inlet of the handheld housing 1 to form an airflow, which then blows along the inside of the handheld housing 1 towards the air outlet. Simultaneously, the water pump 7 extracts water from the water bottle 8 and delivers it to the spiral tube 4. The water flows along the spiral tube 4, ensuring full contact between the airflow inside the handheld housing 1 and the spiral tube 4, thus cooling the airflow to a low temperature. The water then flows along the spiral tube 4 to the distributor head 5, and is sprayed from multiple atomizing nozzles 6 to form a water mist. This water mist mixes with the low-temperature airflow and is then sprayed out from the air outlet of the handheld housing 1. The water mist and low-temperature airflow effectively cool the patient's body temperature by covering the patient's surface. Furthermore, this cooling device is handheld, making it easy to carry and use.

[0036] In some embodiments, such as Figures 1 to 6 As shown, a heat-insulating shell 9 is fixedly attached to the bottom center of the handheld housing 1; a heat dissipation vent is provided on the side of the heat-insulating shell 9 near the water bottle 8; a semiconductor cooling chip 10 is fixedly attached inside the heat-insulating shell 9; the hot end of the semiconductor cooling chip 10 faces the heat dissipation vent of the heat-insulating shell 9; a serpentine tube 11 is provided inside the heat-insulating shell 9; the cold end of the semiconductor cooling chip 10 faces the serpentine tube 11; the two ends of the serpentine tube 11 are respectively connected to the water outlet of the water pump 7 and the end of the spiral tube 4 through flexible hoses.

[0037] Specifically, a convex ring is fixedly connected to the middle of the inner cavity of the heat insulation shell 9, and the semiconductor cooling chip 10 is fixedly connected to the convex ring of the inner cavity of the heat insulation shell 9 by screws. The inner wall of the heat insulation shell 9 is attached with heat insulation aluminum foil.

[0038] During use, the water pump 7 draws clean water from the water bottle 8 and delivers it into the serpentine tube 11. Simultaneously, the thermoelectric cooler 10 is energized, and its cold end absorbs heat, causing the temperature of the serpentine tube 11 to drop, which in turn lowers the temperature of the clean water inside, creating low-temperature water. Furthermore, the heat-insulating aluminum foil effectively prevents heat loss from the insulation shell 9, thus ensuring a low-temperature environment at the serpentine tube 11. The hot end of the thermoelectric cooler 10 releases heat, which dissipates through the heat dissipation vents of the insulation shell 9. By freezing and cooling the clean water, the temperature of the water mist and airflow is further reduced, thereby more effectively lowering the patient's core body temperature.

[0039] In some embodiments, such as Figure 6 As shown, a heat sink 12 is fixedly connected inside the heat dissipation vent of the heat insulation shell 9; the heat sink 12 is in contact with the hot end of the semiconductor cooling chip 10;

[0040] Specifically, the side of the heat sink 12 closest to the thermoelectric cooler 10 is flat, while the side of the heat sink 12 away from the thermoelectric cooler 10 has a plurality of uniformly arranged blades; the outer ring of the heat sink 12 is fixed to the inner wall of the insulation shell 9 by screws.

[0041] The heat released from the hot end of the thermoelectric cooler 10 is effectively conducted to the heat sink 12, and then dissipated into the surrounding air through the heat sink 12, which effectively improves the heat dissipation effect of the thermoelectric cooler 10, thereby improving the cooling effect of the thermoelectric cooler 10.

[0042] In some embodiments, such as Figure 2 , Figure 3 and Figure 7 As shown, a connector 13 is fixedly connected to the bottom center of the handheld housing 1; a connection port is fixedly connected to the top center of the connector 13, and the top of the connection port is connected to the water inlet of the water pump 7 via a flexible hose; a suction tube 14 is sleeved on the bottom of the connection port of the connector 13; a connecting ring 15 is rotatably installed on the outer ring of the bottle mouth of the water bottle 8; the inner ring of the connecting ring 15 is threadedly connected to the bottom outer ring of the connector 13.

[0043] Specifically, the connector 13 penetrates the bottom wall of the isolation cavity at the bottom of the handheld housing 1, and the connector 13 is fixedly connected to the bottom wall of the handheld housing 1; an annular groove is provided on the bottom inner wall of the connector 13, and the outer wall of the bottle mouth of the water bottle 8 matches the inner wall of the annular groove; an external thread is provided on the bottom outer wall of the connector 13, and an internal thread is provided on the inner wall of the connecting ring 15.

[0044] When installing water bottle 8, insert the water suction tube 14 into the inside of water bottle 8, align the bottle mouth of water bottle 8 with the inner ring at the bottom of connector 13, rotate connecting ring 15, and the inner thread of connecting ring 15 engages with the outer thread of the outer ring at the bottom of connector 13, so that connecting ring 15 and connector 13 are threadedly fixed, and the bottle mouth of water bottle 8 is inserted into the annular groove at the bottom of connector 13. This eliminates the need to rotate water bottle 8 during installation, thus avoiding the water bottle 8 from obstructing and colliding with the insulation shell 9 when rotating water bottle 8, thereby increasing the volume of water bottle 8 and ensuring water storage capacity.

[0045] In some embodiments, such as Figure 2 , Figure 3 and Figure 7 As shown, the top of the connector 13 has an annular cavity 17; the annular cavity 17 is fitted around the outer ring of the connection port of the connector 13; a return port communicating with the annular cavity 17 is fixedly connected to one side of the top of the connector 13; one end of the three-way valve 16 is connected to the return port through a hose.

[0046] Specifically, the annular cavity 17 is located on the outer ring of the water suction tube 14, and the bottom of the annular cavity 17 and the outer wall of the water suction tube 14 form a channel for entering the water bottle 8. Through the annular cavity 17, in conjunction with the water suction tube 14, the water flowing back into the water bottle 8 is separated from the water pumped out by the water pump 7, thus avoiding mutual interference.

[0047] In some embodiments, such as Figures 2 to 5 As shown, a fixed cone 18 is provided inside the air inlet of the handheld housing 1; the tip of the fixed cone 18 faces the middle of the handheld housing 1; a movable cone 19 is provided at the other end of the fixed cone 18; the motor 2 is fixedly installed inside the fixed cone 18; a connecting shaft 20 is fixedly connected to the output shaft of the motor 2; the other end of the connecting shaft 20 is bolted to the fan blade 3; the connecting shaft 20 rotatably passes through the movable cone 19.

[0048] Specifically, both the fixed cone 18 and the movable cone 19 are hollow conical cylindrical structures. The bottom outer wall of the fixed cone 18 is fixed to the bottom inner wall of the handheld housing 1 by a bracket. The outer ring of the tip of the movable cone 19 is rotatably mounted with a support column 21. The top of the support column 21 is cylindrical, and the bottom is a support column fixed to the bottom inner wall of the handheld housing 1.

[0049] By enclosing the motor 2 with the fixed cone 18 and the movable cone 19, the motor 2 can be effectively prevented from being damaged by moisture due to water mist. At the same time, the fixed cone 18 and the movable cone 19 can effectively guide the intake air, reduce the obstruction of airflow, and ensure the strength of airflow.

[0050] Furthermore, such as Figures 2 to 5 As shown, a plurality of guide vanes 22 are fixedly arranged around the outer ring of the movable cone 19; the movable cone 19 and the connecting shaft 20 are locked and fixed together by a plurality of screws;

[0051] Specifically, the outer ring of the movable cone 19 is provided with multiple countersunk threaded holes. Screws are threaded into the countersunk threaded holes, and the movable cone 19 and the connecting shaft 20 are locked and fixed by the multiple screws pressing against the connecting shaft 20.

[0052] Motor 2 drives connecting shaft 20 to rotate, which in turn drives fan blade 3 to rotate, drawing in outside air to form an airflow. At the same time, it drives movable cone 19 to rotate, which in turn drives guide vane 22 to rotate, causing the airflow to rotate. This rotating airflow then comes into contact with spiral tube 4, thereby improving the contact effect between the airflow and spiral tube 4 and enhancing the cooling effect of the airflow. Furthermore, the rotating airflow, upon contact with water mist, improves the mixing effect with the water mist.

[0053] Furthermore, such as Figures 2 to 5As shown, a convex ring is fixedly connected to the outer ring of the movable cone 19 near the fixed cone 18; a rotating ring 23 is slidably installed on the outer ring of the convex ring; the rotating ring 23 is fixedly connected to the fixed cone 18 by a plurality of screws.

[0054] The rotating ring 23 is fixed and locked to the fixed cone 18. At the same time, the rotating ring 23 rotates and engages with the convex ring on the outer ring of the movable cone 19. This not only ensures the tightness of the connection between the movable cone 19 and the fixed cone 18 and improves the protection of the motor 2, but also improves the rotational stability of the movable cone 19.

[0055] In some embodiments, such as Figure 1 , Figure 2 and Figure 8 As shown, a U-shaped frame 24 is provided on the bottom surface of the heat insulation shell 9; a fixing screw 25 is rotatably installed on one side of the U-shaped frame 24; and a slot 26 matching the fixing screw 25 is provided on the other side of the U-shaped frame 24.

[0056] Specifically, a locking nut is threaded onto the fixing screw 25; both sides of the U-shaped bracket 24 are elastic.

[0057] When in use, when a patient needs to be transferred using a stretcher, the U-shaped frame 24 is clipped onto the crossbar of the stretcher, the fixing screw 25 is rotated to insert the fixing screw 25 into the slot 26, and the locking nut on the fixing screw 25 is tightened so that the two sides of the U-shaped frame 24 are close together, clamping and fixing the crossbar of the stretcher, thereby fixing the cooling device to the stretcher, which facilitates the transfer of the patient.

[0058] Furthermore, such as Figure 1 , Figure 2 and Figure 8 As shown, a universal ball joint 27 is provided between the U-shaped frame 24 and the bottom surface of the insulation shell 9;

[0059] Specifically, the universal ball joint 27 includes: a ball head rod, the outer ring of which is threaded, and the ball head rod is threaded to the bottom surface of the insulation shell 9; a star-shaped sleeve, the ball part of which is rotatably installed in the star-shaped sleeve, and the outer ring of the star-shaped sleeve is threaded with a nut, and the bottom of the star-shaped sleeve is fixedly connected to the top surface of the U-shaped frame 24.

[0060] When in use, after the cooling device is fixedly installed on the stretcher, rotate the handheld housing 1 to adjust its orientation, which will drive the ball head rod on the universal ball joint 27 to rotate. Then, rotate the nut on the universal ball joint 27 so that the nut presses against the star-shaped sleeve, clamping and fixing the ball head rod, thereby fixing the orientation of the cooling device.

[0061] Working principle: Fill water bottle 8 with clean water, insert water suction tube 14 into water bottle 8, align the bottle mouth of water bottle 8 with the bottom inner ring of connector 13, rotate connecting ring 15, and the internal thread of the inner ring of connecting ring 15 engages with the external thread of the bottom outer ring of connector 13, so that connecting ring 15 and connector 13 are threadedly fixed, and the bottle mouth of water bottle 8 is inserted into the ring groove at the bottom of connector 13, thus fixing and locking water bottle 8.

[0062] When it is necessary to spray low-temperature water mist, switch the switch on the handle of the handheld housing 1 to the low-temperature water mist mode. At this time, the three-way valve 16 opens the connection between the spiral tube 4 and the splitter head 5, and closes the connection with the return port of the connector 13. The motor 2 drives the connecting shaft 20 to rotate, which in turn drives the fan blades 3 to rotate, drawing in outside air to form an airflow. At the same time, it drives the movable cone 19 to rotate, which in turn drives the guide vanes 22 to rotate, causing the airflow to rotate and forming a rotating airflow.

[0063] Simultaneously, after the water pump 7 extracts the clean water from the water bottle 8, the clean water is transported into the serpentine tube 11. At the same time, the semiconductor cooling chip 10 is energized and operates. The cold end of the semiconductor cooling chip 10 absorbs heat, causing the temperature of the serpentine tube 11 to decrease, resulting in a decrease in the temperature of the clean water inside, forming low-temperature water. The low-temperature water flows along the inside of the spiral tube 4. At this time, the airflow inside the handheld housing 1 comes into full contact with the spiral tube 4, cooling the airflow to form a low-temperature airflow. Afterward, the clean water is transported along the spiral tube 4 to the distributor head 5, and then sprayed out from multiple atomizing nozzles 6 to form water mist. The water mist mixes with the low-temperature airflow and is sprayed out from the air outlet of the handheld housing 1. The water mist and low-temperature airflow cool the patient's surface, effectively reducing the patient's core body temperature. At the same time, the cooling device of this application is handheld, making it easy to carry and use.

[0064] When low-temperature air needs to be sprayed, the switch on the handle of housing 1 is switched to the low-temperature air setting. At this time, the three-way valve 16 closes the connection between the spiral tube 4 and the diverter head 5, and at the same time opens the connection between the spiral tube 4 and the return port of connector 13. This allows the low-temperature water in the spiral tube 4 to cool the airflow. After passing through the three-way valve 16, the low-temperature water flows back into the annular cavity 17 of connector 13 and then back into the water bottle 8, so that only low-temperature air is blown out.

[0065] When a patient needs to be transferred using a stretcher, the U-shaped frame 24 is secured to the crossbar of the stretcher. The fixing screw 25 is rotated to engage with the slot 26. The locking nut on the fixing screw 25 is tightened, bringing the two sides of the U-shaped frame 24 closer together and clamping the crossbar of the stretcher. The orientation of the handheld housing 1 is adjusted by rotating the ball joint 27, which rotates the ball joint rod on the universal ball joint 27. Then, the nut on the universal ball joint 27 is rotated to press against the star-shaped sleeve, clamping the ball joint rod and fixing the orientation of the cooling device. This facilitates patient transfer and provides continuous cooling for the patient.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable intelligent cooling spray device, characterized in that: The device includes a handheld housing; a motor is installed inside the air inlet of the handheld housing; a fan blade is fixedly connected to the output end of the motor; a spiral tube is installed inside the handheld housing; a flow divider is installed inside the air outlet of the handheld housing; multiple atomizing nozzles are fixedly connected around the outer ring of the flow divider; a water pump is fixedly connected to the bottom center of the handheld housing; a water bottle is installed on the bottom center of the handheld housing; the water inlet of the water pump is connected to the interior of the water bottle; the water outlet of the water pump is connected to the other end of the spiral tube; a three-way valve is fixedly connected to one end of the flow divider near the handheld housing; the two ports of the three-way valve are respectively connected to the interior of the flow divider and the end of the spiral tube; the other end of the three-way valve is connected to the water bottle. A heat-insulating shell is fixed to the bottom middle part of the handheld housing; The heat insulation shell has a heat dissipation vent on the side near the water bottle; a semiconductor cooling chip is fixed inside the heat insulation shell; the hot end of the semiconductor cooling chip faces the heat dissipation vent of the heat insulation shell; a serpentine tube is provided inside the heat insulation shell; the cold end of the semiconductor cooling chip faces the serpentine tube; the two ends of the serpentine tube are respectively connected to the water outlet of the water pump and the end of the spiral tube through flexible hoses. A heat sink is fixed inside the heat dissipation vent of the insulation shell; the heat sink is in contact with the hot end of the semiconductor cooling chip.

2. The portable intelligent cooling spray device according to claim 1, characterized in that: A connector is fixedly attached to the bottom center of the handheld housing; a connection port is fixedly attached to the top center of the connector, and the top of the connection port is connected to the water inlet of the water pump via a flexible hose; a suction tube is sleeved on the bottom of the connection port of the connector; a connecting ring is rotatably installed on the outer ring of the water bottle mouth; the inner ring of the connecting ring is threadedly connected to the bottom outer ring of the connector.

3. The portable intelligent cooling spray device according to claim 2, characterized in that: The top of the connector has an annular cavity; the annular cavity is fitted around the outer ring of the connector's connection port; a return port communicating with the annular cavity is fixedly connected to one side of the top of the connector; one end of the three-way valve is connected to the return port via a flexible hose.

4. The portable intelligent cooling spray device according to claim 1, characterized in that: A fixed cone is provided inside the air inlet of the handheld housing; the tip of the fixed cone faces the middle of the handheld housing; a movable cone is provided at the other end of the fixed cone; the motor is fixedly installed inside the fixed cone; a connecting shaft is fixedly connected to the output shaft of the motor; the other end of the connecting shaft is bolted to the fan blade; the connecting shaft rotatably passes through the movable cone.

5. A portable intelligent cooling spray device according to claim 4, characterized in that: The outer ring of the movable cone is fixed with multiple guide vanes; the movable cone and the connecting shaft are locked together by multiple screws.

6. The portable intelligent cooling spray device according to claim 4, characterized in that: A convex ring is fixedly connected to the outer ring of the movable cone near the fixed cone; a rotating ring is slidably installed on the outer ring of the convex ring; the rotating ring is fixedly connected to the fixed cone by multiple screws.

7. The portable intelligent cooling spray device according to claim 1, characterized in that: The bottom surface of the insulation shell is provided with a U-shaped frame; a fixing screw is rotatably installed on one side of the U-shaped frame; and a slot matching the fixing screw is opened on the other side of the U-shaped frame.

8. A portable intelligent cooling spray device according to claim 7, characterized in that: A universal ball joint is provided between the U-shaped frame and the bottom surface of the insulation shell.

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