Fire water curtain spray device

The dynamic angle adjustment of the water curtain nozzles is achieved by a motor-driven rotation system, which solves the problems of fire extinguishing blind spots and water waste in existing devices, and improves fire extinguishing efficiency and device reliability.

CN224292396UActive Publication Date: 2026-05-29ANHUI QUANSHUN FIRE ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI QUANSHUN FIRE ENG CO LTD
Filing Date
2025-04-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing fire water curtain sprinkler systems cannot dynamically adjust the spray angle according to the direction of fire spread, resulting in blind spots in fire suppression, reduced fire suppression efficiency, and water mist may spray into non-fire areas, causing waste of water resources and prolonging fire suppression time.

Method used

The rotating system, driven by an electric motor, uses a combination of lead screws, gears, and racks to achieve vertical and horizontal rotation of the water curtain nozzles, precisely covering the flame area. An auxiliary wheel ensures smooth rotation and prevents jamming.

Benefits of technology

It improves fire extinguishing efficiency, reduces blind spots, shortens fire response time, reduces fire losses, extends equipment lifespan, and improves motor operating efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides fire water curtain spraying device, including mounting panel, be rotated and be connected with rotating cylinder through bearing on the mounting panel, the inside rotation of rotating cylinder is connected with the lead screw through bearing, the inside screw connection of lead screw in rotating cylinder has movable cylinder, the bottom fixed mounting of movable cylinder has connecting plate, the bottom fixed mounting of connecting plate has two -way rack plate, the bottom of rotating cylinder is equipped with the through -slot, the bottom fixed mounting of rotating cylinder has installation shell. Through starting motor, make two rotating boards all through fixed plate drive multiple water curtain shower nozzles rotate up and down, two fixed plates drive multiple groups of shower nozzles rotate up and down, multiple water curtain shower nozzles can rotate in the vertical direction, can cover greater fire extinguishing area, reduce fire extinguishing blind area, improve overall fire extinguishing efficiency, can also adjust the injection direction in real time according to the fire, accurate cover flame area, enhance fire extinguishing effect, shorten fire extinguishing response time, reduce fire loss.
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Description

Technical Field

[0001] This utility model relates to a fire-fighting water curtain spray device. Background Technology

[0002] A water curtain system, also known as a water curtain fire suppression system, is an automatic sprinkler system primarily used for fire suppression, cooling, and isolation. It consists of water curtain nozzles, deluge alarm valve assemblies or temperature-sensing deluge valves, water supply and distribution pipes, control valves, and water flow alarm devices. Water curtain systems are mainly used in areas requiring water curtain protection or fire isolation, such as between fire zones or equipment in a company, to prevent the spread of fire, block radiant heat generated by a fire, and guide and dilute leaked flammable, explosive, and harmful gases and liquids.

[0003] Existing fire sprinkler systems typically involve fixing multiple water curtain nozzles in a suitable area at a fixed angle, meaning they can only spray the designated area. This prevents dynamic adjustment of the spray angle based on the direction of fire spread, potentially leading to blind spots, reduced firefighting efficiency, and the possibility of the fire spreading in multiple directions, further impacting the firefighting effect. Additionally, the water mist can be sprayed into non-fire areas, wasting water resources and failing to accurately cover the flames, potentially prolonging firefighting time and increasing fire damage. Utility Model Content

[0004] This invention addresses the technical problems encountered during use, such as the fixed installation of multiple water curtain nozzles in a suitable area with fixed angles, resulting in spraying only a fixed area without the ability to dynamically adjust the spray angle according to the direction of fire spread. This can lead to blind spots in fire suppression, reduced fire suppression efficiency, and the possibility of fire spreading in multiple directions, affecting the fire suppression effect. Furthermore, water mist can be sprayed into non-fire areas, causing water waste and failing to accurately cover the flame area, potentially prolonging fire suppression time and increasing fire losses. Therefore, this invention provides a fire-fighting water curtain sprinkler device.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a fire-fighting water curtain sprinkler device, including a mounting plate. A rotating cylinder is rotatably connected to the mounting plate via bearings. A lead screw is rotatably connected to the inside of the rotating cylinder via bearings. A movable cylinder is threadedly connected to the lead screw inside the rotating cylinder. A connecting plate is fixedly installed at the bottom end of the movable cylinder. A bidirectional rack plate is fixedly installed at the bottom end of the connecting plate. A through groove is opened at the bottom end of the rotating cylinder. A mounting shell is fixedly installed at the bottom end of the rotating cylinder. The mounting shell communicates with the rotating cylinder through the through groove. Two rotating rods are rotatably connected to the inside of the mounting shell via bearings. Gears are fixedly installed on the two rotating rods. Both gears are meshed with the bidirectional rack plate.

[0007] In this technical solution, a fixed housing is fixedly installed on the mounting plate, a motor is fixedly installed on the fixed housing, and the output shaft of the motor extends into the interior of the fixed housing and is fixedly installed with a main pulley and a pinion.

[0008] In this technical solution, one end of the lead screw extends into the interior of the fixed housing and is rotatably connected to the interior of the fixed housing via a bearing. The lead screw is fixedly installed inside the fixed housing with a pulley, and the main pulley is connected to the pulley via a belt.

[0009] In this technical solution, one end of the rotating cylinder extends into the interior of the fixed shell and is fitted with a large gear, which meshes with a small gear.

[0010] In this technical solution, a plurality of auxiliary wheels are fixedly installed at the bottom end of the large gear, and the plurality of auxiliary wheels abut against the mounting plate.

[0011] In this technical solution, both ends of the two rotating rods extend to the outer end of the mounting shell and are fixedly mounted with rotating plates. Both ends of the mounting shell are provided with fixing plates, and one end of each of the two mounting plates is fixedly mounted to the same fixing plate.

[0012] In this technical solution, water distribution plates are fixedly installed on both fixed plates, and multiple water curtain nozzles are connected to both water distribution plates at equal intervals. Water supply pipes are connected to both water distribution plates, and both water supply pipes are connected to an external water supply system.

[0013] In this technical solution, two guide rods are fixedly installed inside the rotating cylinder, and two guide blocks are fixedly installed on the movable cylinder. The guide blocks are slidably connected to the guide rods.

[0014] In this technical solution, a connecting shell is fixedly installed at the bottom of the mounting shell, and the bidirectional rack plate can extend into the interior of the connecting shell.

[0015] In this technical solution, the mounting plate is provided with a plurality of bolts that are evenly distributed.

[0016] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0017] The positive and progressive effects of this utility model are as follows:

[0018] The aforementioned fire water curtain sprinkler system, by starting the motor, causes two rotating plates to drive multiple water curtain nozzles to rotate up and down through the fixed plates. The two fixed plates drive multiple sets of nozzles to rotate up and down. The multiple water curtain nozzles can rotate vertically, covering a larger fire extinguishing area, reducing fire extinguishing blind spots, improving overall fire extinguishing efficiency, and can also adjust the spray direction in real time according to the fire situation to accurately cover the flame area, enhance the fire extinguishing effect, shorten the fire extinguishing response time, and reduce fire losses.

[0019] By starting the motor, both fixed plates drive multiple water curtain nozzles to rotate. The multiple water curtain nozzles can rotate horizontally, allowing the water curtain nozzles to flexibly adjust the spray direction, expand the water curtain coverage area, effectively eliminate fire extinguishing blind spots, quickly adjust the nozzle angle, accurately cover the flame area, and form a dense water curtain to enhance the fire extinguishing effect.

[0020] By setting up auxiliary wheels, the water curtain nozzles can be made more stable when rotating horizontally, avoiding jamming or shaking. At the same time, the load on the rotating cylinder is evenly distributed, avoiding local stress concentration, extending the service life of the device, reducing the rotational resistance of the rotating cylinder, thereby reducing the load on the motor, improving the motor's operating efficiency, and extending the motor's life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the internal front view of the present invention.

[0023] Figure 3 This is a top view of the internal structure of the fixed shell of this utility model.

[0024] Explanation of reference numerals in the attached figures

[0025] 1. Mounting plate; 2. Bolt; 3. Pinion; 4. Main pulley; 5. Motor; 6. Fixed housing; 7. Belt; 8. Driven pulley; 9. Lead screw; 10. Guide rod; 11. Large gear; 12. Auxiliary wheel; 13. Guide block; 14. Movable cylinder; 15. Water curtain nozzle; 16. Water distribution plate; 17. Rotating plate; 18. Fixed plate; 19. Rotating rod; 20. Mounting housing; 21. Double-sided rack plate; 22. Connecting housing; 23. Gear; 24. Water supply pipe; 25. Through groove; 26. Connecting plate; 27. Rotating cylinder. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated components, elements, or parts to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0030] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two components, elements, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] like Figure 1-3 As shown, the fire-fighting water curtain sprinkler device includes a mounting plate 1. A rotating cylinder 27 is rotatably connected to the mounting plate 1 via bearings. A lead screw 9 is rotatably connected to the inside of the rotating cylinder 27 via bearings. A movable cylinder 14 is threadedly connected to the inside of the rotating cylinder 27 via the lead screw 9. A connecting plate 26 is fixedly installed at the bottom end of the movable cylinder 14. A double-sided rack plate 21 is fixedly installed at the bottom end of the connecting plate 26. A through groove 25 is opened at the bottom end of the rotating cylinder 27. A mounting shell 20 is fixedly installed at the bottom end of the rotating cylinder 27. The mounting shell 20 communicates with the rotating cylinder 27 through the through groove 25. Two rotating rods 19 are rotatably connected to the inside of the mounting shell 20 via bearings. Gears 23 are fixedly installed on the two rotating rods 19. Both gears 23 are meshed with the double-sided rack plate 21.

[0033] In this technical solution, a fixed housing 6 is fixedly installed on the mounting plate 1, and a motor 5 is fixedly installed on the fixed housing 6. The output shaft of the motor 5 extends into the interior of the fixed housing 6 and a main pulley 4 and a pinion 3 are fixedly installed thereon.

[0034] In this technical solution, one end of the lead screw 9 extends into the interior of the fixed housing 6 and is rotatably connected to the interior of the fixed housing 6 through a bearing. The lead screw 9 is fixedly installed inside the fixed housing 6 with a pulley 8, and the main pulley 4 is rotatably connected to the pulley 8 through a belt 7.

[0035] In this technical solution, one end of the rotating cylinder 27 extends into the interior of the fixed shell 6 and is fitted with a large gear 11, which meshes with the small gear 3.

[0036] In this technical solution, a plurality of auxiliary wheels 12 are fixedly installed at the bottom end of the large gear 11, and the plurality of auxiliary wheels 12 are all connected to the mounting plate 1.

[0037] In this technical solution, both ends of the two rotating rods 19 extend to the outer end of the mounting shell 20 and are fixedly mounted with rotating plates 17. Both ends of the mounting shell 20 are provided with fixing plates 18, and one end of the two mounting plates 1 is fixedly mounted to the same fixing plate 18.

[0038] In this technical solution, water distribution plates 16 are fixedly installed on both of the fixed plates 18, and multiple water curtain nozzles 15 are connected to both of the two water distribution plates 16 at equal intervals. Water supply pipes 24 are connected to both of the two water distribution plates 16, and both of the water supply pipes 24 are connected to an external water supply system.

[0039] In this technical solution, two guide rods 10 are fixedly installed inside the rotating cylinder 27, and two guide blocks 13 are fixedly installed on the movable cylinder 14. The guide blocks 13 are slidably connected to the guide rods 10.

[0040] In this technical solution, a connecting shell 22 is fixedly installed at the bottom end of the mounting shell 20, and the double-sided rack plate 21 can extend into the interior of the connecting shell 22.

[0041] In this technical solution, the mounting plate 1 is provided with a plurality of bolts 2 distributed at equal intervals.

[0042] In use, all electrical components mentioned in this application are externally connected to a power supply and control switch. The device is fixed in a suitable area using multiple bolts 2, ensuring a tight connection between the mounting plate 1 and the wall or supporting structure, preventing loosening or detachment during operation. This also facilitates disassembly, simplifying future maintenance or component replacement and reducing maintenance costs. The two water pipes 24 are connected to an external water supply system. The motor 5 is started, and its output shaft rotates, driving the main pulley 4 and pinion 3. The main pulley 4 drives the driven pulley 8 via belt 7, which in turn drives the lead screw 9. With the cooperation of the two guide rods 10, the movable cylinder 14 moves up and down along the surface of the lead screw 9, causing the connecting plate 26 to rotate. The double-sided rack plate 21 moves up and down, causing both rack plates 21 to drive two gears 23 to rotate. The two gears 23 drive two rotating plates 17 to rotate via rotating rod 19. The two rotating plates 17 drive multiple water curtain nozzles 15 to rotate up and down via fixed plates 18. The two fixed plates 18 drive multiple sets of water curtain nozzles 15 to rotate up and down. The multiple water curtain nozzles 15 can rotate vertically, which can cover a larger fire extinguishing area, reduce fire extinguishing blind spots, improve overall fire extinguishing efficiency, and can also adjust the spray direction in real time according to the fire situation to accurately cover the flame area, enhance the fire extinguishing effect, shorten the fire extinguishing response time, and reduce fire losses. In addition, when one set of water curtain nozzles 15 fails, the other set can continue to work to ensure system reliability.

[0043] Simultaneously, the small gear 3 drives the large gear 11 to rotate, the large gear 11 drives the rotating cylinder 27 to rotate, and the rotating cylinder 27 drives the mounting shell 20 and the connecting shell 22 to rotate, so that both fixed plates 18 drive multiple water curtain nozzles 15 to rotate horizontally. The multiple water curtain nozzles 15 can rotate in the horizontal direction, allowing the water curtain nozzles 15 to flexibly adjust the spray direction, expand the water curtain coverage area, effectively eliminate fire extinguishing blind spots, quickly adjust the nozzle angle, accurately cover the flame area, improve fire extinguishing efficiency, and form a dense water curtain to enhance the fire extinguishing effect.

[0044] The auxiliary wheel 12 can effectively ensure that the water curtain nozzle 15 rotates more smoothly when rotating horizontally, avoiding jamming or shaking. At the same time, it distributes the load of the rotating cylinder 27 evenly, avoids local stress concentration, extends the service life of the device, reduces the rotational resistance of the rotating cylinder 27, thereby reducing the load on the motor 5, improving the motor operating efficiency, and extending the motor life.

[0045] The advantages of this application are:

[0046] 1. By starting the motor 5, both rotating plates 17 drive multiple water curtain nozzles 15 to rotate up and down through the fixed plate 18. The two fixed plates 18 drive multiple sets of water curtain nozzles 15 to rotate up and down. The multiple water curtain nozzles 15 can rotate vertically, which can cover a larger fire extinguishing area, reduce fire extinguishing blind spots, improve overall fire extinguishing efficiency, and can also adjust the spray direction in real time according to the fire situation to accurately cover the flame area, enhance the fire extinguishing effect, shorten the fire extinguishing response time, and reduce fire losses.

[0047] 2. By starting the motor 5, both fixed plates 18 drive multiple water curtain nozzles 15 to rotate. The multiple water curtain nozzles 15 can rotate in the horizontal direction, allowing the water curtain nozzles 15 to flexibly adjust the spray direction, expand the water curtain coverage area, effectively eliminate fire extinguishing blind spots, quickly adjust the nozzle angle, accurately cover the flame area, and form a dense water curtain to enhance the fire extinguishing effect.

[0048] 3. By setting the auxiliary wheel 12, the auxiliary wheel 12 can effectively ensure that the water curtain nozzle 15 rotates more smoothly when rotating horizontally, avoiding jamming or shaking. At the same time, it distributes the load of the rotating cylinder 27 evenly, avoids local stress concentration, extends the service life of the device, reduces the rotational resistance of the rotating cylinder 27, thereby reducing the load on the motor, improving the operating efficiency of the motor 5, and extending the motor life.

[0049] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A fire-fighting water curtain sprinkler system, comprising a mounting plate (1), characterized in that: A rotating cylinder (27) is rotatably connected to the mounting plate (1) via a bearing. A lead screw (9) is rotatably connected to the inside of the rotating cylinder (27) via a bearing. A movable cylinder (14) is threadedly connected to the inside of the rotating cylinder (27). A connecting plate (26) is fixedly installed at the bottom end of the movable cylinder (14). A double-sided rack plate (21) is fixedly installed at the bottom end of the connecting plate (26). A through groove (25) is opened at the bottom end of the rotating cylinder (27). A mounting shell (20) is fixedly installed at the bottom end of the rotating cylinder (27). The mounting shell (20) communicates with the rotating cylinder (27) through the through groove (25). Two rotating rods (19) are rotatably connected to the inside of the mounting shell (20) via a bearing. Gears (23) are fixedly installed on the two rotating rods (19). Both gears (23) are meshed with the double-sided rack plate (21).

2. The fire-fighting water curtain sprinkler device as described in claim 1, characterized in that: A fixed housing (6) is fixedly installed on the mounting plate (1), and a motor (5) is fixedly installed on the fixed housing (6). The output shaft of the motor (5) extends into the interior of the fixed housing (6) and a main pulley (4) and a pinion (3) are fixedly installed thereon.

3. The fire-fighting water curtain sprinkler device as described in claim 2, characterized in that: One end of the lead screw (9) extends into the interior of the fixed housing (6) and is rotatably connected to the interior of the fixed housing (6) via a bearing. The lead screw (9) is fixedly installed inside the fixed housing (6) with a pulley (8). The main pulley (4) is rotatably connected to the pulley (8) via a belt (7).

4. The fire-fighting water curtain sprinkler device as described in claim 1, characterized in that: One end of the rotating cylinder (27) extends into the interior of the fixed shell (6) and is fitted with a large gear (11), which meshes with the small gear (3).

5. The fire-fighting water curtain sprinkler device as described in claim 4, characterized in that: The bottom end of the large gear (11) is fixedly equipped with a plurality of auxiliary wheels (12) that are evenly distributed, and the plurality of auxiliary wheels (12) are all connected to the mounting plate (1).

6. The fire-fighting water curtain sprinkler device as described in claim 1, characterized in that: Both ends of the two rotating rods (19) extend to the outer end of the mounting shell (20) and are fixedly mounted with rotating plates (17). Both ends of the mounting shell (20) are provided with fixing plates (18), and one end of the two mounting plates (1) is fixedly mounted to the same fixing plate (18).

7. The fire-fighting water curtain sprinkler device as described in claim 6, characterized in that: Water distribution plates (16) are fixedly installed on both of the fixed plates (18). Multiple water curtain nozzles (15) are connected to both of the water distribution plates (16) at equal intervals. Water supply pipes (24) are connected to both of the water distribution plates (16). Both of the water supply pipes (24) are connected to the external water supply system.

8. The fire-fighting water curtain sprinkler device as described in claim 1, characterized in that: Two guide rods (10) are fixedly installed inside the rotating cylinder (27), and two guide blocks (13) are fixedly installed on the movable cylinder (14). The guide blocks (13) are slidably connected to the guide rods (10).

9. The fire-fighting water curtain sprinkler system as described in claim 1, characterized in that: The bottom end of the mounting shell (20) is fixedly installed with a connecting shell (22), and the double-sided rack plate (21) can extend into the interior of the connecting shell (22).

10. The fire-fighting water curtain sprinkler device as described in claim 1, characterized in that: The mounting plate (1) is provided with a plurality of bolts (2) that are evenly distributed.