Automatic spraying device for building fire protection

Abstract

The invention relates to the technical field of building fire protection, and discloses a building fire protection automatic spraying device which comprises a mounting ring and an assembling mechanism, a plurality of connecting plates are fixedly connected to the inner side of the mounting ring, a mounting base is fixedly connected to one ends of the connecting plates, and a connecting pipe is fixedly connected to the interior of the mounting base; a water outlet hole is formed in the bottom of the connecting pipe, a spraying mechanism is arranged on the outer side of the mounting base, the spraying mechanism comprises a dustproof shell, an annular limiting groove is formed in the inner side of the dustproof shell, and two arc-shaped limiting strips are fixedly connected to the outer side of the mounting base. A temperature sensing part in the device can accurately respond to fire behaviors, a water stop plug is timely triggered to be opened, water flow impacts an impeller to drive a dustproof shell to rotate, meanwhile, a foam block floats upwards to open water spraying holes, the water flow is evenly sprayed, the coverage area is enlarged, a fire source is rapidly extinguished, fire losses are effectively reduced, and building fire safety is comprehensively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of building fire protection, in particular to an automatic sprinkler device for building fire protection. Background Art

[0002] Fire safety is crucial in modern construction. As key fire prevention and control equipment, automatic fire sprinklers are widely used in various building spaces. As buildings continue to expand in size and become increasingly complex, higher requirements are placed on sprinkler reliability, fire extinguishing efficiency, and ease of installation and maintenance. Their primary function is to automatically sense temperature changes when a fire occurs and promptly initiate water spraying to control the spread of fire and minimize fire damage.

[0003] Currently, traditional building fire sprinkler systems often use fusible alloy or glass bulb nozzles as temperature sensors. When the ambient temperature reaches a set point, the fusible alloy melts or the glass bulb ruptures, releasing the nozzle seal and releasing pressurized water from the pipe network to extinguish the fire. For installation and connection, threaded connections are typically used to connect the sprinkler system to the fire hose. This simple mechanical structure and connection method can, to a certain extent, meet basic firefighting needs.

[0004] However, existing sprinkler devices have many problems in practical applications. In some large commercial complexes or industrial plants, due to the large space and complex environment, the spraying coverage of traditional sprinkler devices is limited, and the water flow is dispersed into water mist, which is directly evaporated by high temperature in the air, making it difficult to quickly and effectively extinguish large-scale fires, causing the fire to spread in a short period of time. In terms of installation and maintenance, threaded connections are exposed to a humid fire-fighting environment for a long time, and are prone to rust. This not only increases the difficulty of disassembly and maintenance, but also causes water leakage due to sealing failure, affecting the normal operation of the fire-fighting system. Therefore, the present invention provides an automatic building fire-fighting sprinkler device to address the shortcomings of the prior art. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an automatic fire sprinkler device for buildings, which solves the problems mentioned in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A building fire automatic sprinkler device, including a mounting ring and an assembly mechanism, a plurality of connecting plates are fixedly connected to the inner side of the mounting ring, one end of the plurality of connecting plates is fixedly connected to a mounting seat, a connecting pipe is fixedly connected to the inside of the mounting seat, a water outlet is provided at the bottom of the connecting pipe, a spray mechanism is provided on the outside of the mounting seat, the spray mechanism includes a dustproof shell, an annular limit groove is provided on the inner side of the dustproof shell, two arc-shaped limit strips are fixedly connected to the outer side of the mounting seat, and the outer side of the arc-shaped limit strip is engaged with the inner side of the annular limit groove.

[0007] Preferably, the bottom of the mounting seat is fixedly connected to two fixing rods, the bottom ends of the two fixing rods are fixedly connected to fixing rings, the inner side of the fixing rings is rotatably connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to an impeller, and the bottom of the rotating shaft is fixedly connected to the inner bottom wall of the dustproof shell.

[0008] Preferably, a plurality of watering holes are opened inside the dustproof shell, and a plurality of groups of guide shells are fixedly connected to the inner wall of the dustproof shell, with each group of guide shells having two guide shells.

[0009] Preferably, a guide groove is provided inside the guide shell, a plurality of foam blocks are slidably connected to the inner wall of the dustproof shell, and the outer sides of the foam blocks are slidably connected to the inner sides of the two guide grooves.

[0010] Preferably, a water stopper is provided inside the dustproof housing, the outer side of the water stopper contacts the inner side of the water outlet, and a thermosensitive glass column is provided on the top of the rotating shaft, the top of the thermosensitive glass column contacts the inner side of the water stopper.

[0011] Preferably, the assembly mechanism is located on the top of the mounting seat, and the assembly mechanism includes a sleeve and two combination columns. Two L-shaped combination slots are provided inside the sleeve, and an arc groove is provided on the inner side of the L-shaped combination slot.

[0012] Preferably, one end of the two combined columns is fixedly connected to the outer side of the connecting pipe, and the outer side of the combined column is slidably connected to the inner side of the L-shaped combined slot.

[0013] Preferably, the outer side of the sleeve is threadedly connected to two lifting columns, and the outer sides of the lifting columns are in contact with the outer sides of the combined columns.

[0014] Preferably, an assembly groove is provided on the inner side of the sleeve, the inner side of the assembly groove is slidably connected to the outer side of the connecting pipe, and an annular mounting groove is provided on the inner side of the assembly groove and the top of the connecting pipe.

[0015] Preferably, a sealing ring is provided inside the assembly groove, and the outer side of the sealing ring is in contact with the inner sides of the two annular mounting grooves.

[0016] The present invention provides an automatic fire sprinkler system for buildings. It has the following beneficial effects:

[0017] 1. The present invention can accurately respond to fire conditions through the temperature sensing components in the device, triggering the water stop plug to open in time. The water flow impacts the impeller to drive the dustproof shell to rotate. At the same time, the foam block floats up to open the sprinkler hole, so that the water flow is sprayed evenly and the coverage area is expanded, quickly extinguishing the fire source, effectively reducing fire losses, and comprehensively ensuring building fire safety.

[0018] 2. The present invention innovates in the connection structure. The connecting pipe and the sleeve adopt an installation method in which a combination column is inserted into the L-shaped slot and extruded with a lifting column. Compared with the traditional threaded connection, it is not only more convenient to install, but also can enhance the sealing effect through the inclined extrusion of the lifting column, avoiding problems such as loose connection and leakage due to rust, improving the connection stability and sealing performance of the device, and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 A top view of the present invention;

[0021] Figure 3 Schematic diagram of the internal structure of the dustproof housing of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the guide housing of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the assembly mechanism of the present invention;

[0024] Figure 6 Schematic diagram of the internal structure of the sleeve of the present invention.

[0025] Among them, 1. Mounting ring; 2. Connecting plate; 3. Mounting seat; 4. Connecting pipe; 5. Water outlet; 6. Spraying mechanism; 601. Dustproof shell; 602. Fixing rod; 603. Fixing collar; 604. Rotating shaft; 605. Impeller; 606. Arc-shaped limit strip; 607. Annular limit groove; 608. Sprinkling hole; 609. Guide shell; 610. Guide groove; 611. Foam block; 7. Assembly mechanism; 701. Sleeve; 702. Combination column; 703. L-shaped combination slot hole; 704. Arc-shaped slot; 705. Lifting column; 706. Assembly groove; 707. Annular mounting groove; 708. Sealing ring; 8. Water stop plug; 9. Thermosensitive glass column. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Please see the attached Figure 1 -Attached Figure 6An embodiment of the present invention provides an automatic building fire sprinkler system, comprising a mounting ring 1 and an assembly mechanism 7. Multiple connecting plates 2 are fixedly connected to the inner side of the mounting ring 1, each of which is fixedly connected to a mounting base 3 at one end. During installation, the sleeve 701 is first precisely aligned with the fire hose within the building, and then the mounting ring 1 is securely fastened to the designated location on the indoor ceiling using bolts. A connecting pipe 4 is fixedly connected to the inner side of the mounting base 3, with a water outlet 5 formed at the bottom. A sprinkler mechanism 6 is provided on the outer side of the mounting base 3.

[0028] The spray mechanism 6 includes a dustproof housing 601, the inner side of which is provided with an annular limiting groove 607. Two arcuate limiting bars 606 are fixedly connected to the outer side of the mounting base 3. The outer sides of the arcuate limiting bars 606 engage with the inner sides of the annular limiting groove 607, ensuring that the dustproof housing 601 can flexibly rotate relative to the mounting base 3. Two fixing rods 602 are fixedly connected to the bottom of the mounting base 3. A fixing collar 603 is fixedly connected to the bottom ends of the two fixing rods 602. A rotating shaft 604 is rotatably connected to the inner side of the fixing collar 603. An impeller 605 is fixedly connected to the outer side of the rotating shaft 604. The bottom of the rotating shaft 604 is fixedly connected to the inner bottom wall of the dustproof housing 601. The interior of the dustproof housing 601 is provided with multiple watering holes 608. Multiple sets of guide shells 609 are fixedly connected to the inner wall of the dustproof housing 601. Each set of guide shells 609 contains two guide shells. Each guide shell 609 has guide grooves 610 formed within it. Multiple foam blocks 611 are slidably connected to the inner wall of the dustproof housing 601. The outer sides of the foam blocks 611 slide in contact with the inner sides of the two guide grooves 610. A water stopper 8 is installed inside the dustproof housing 601. The outer side of the water stopper 8 contacts the inner side of the water outlet 5. A thermosensitive glass column 9 is installed on the top of the rotating shaft 604. The top of the thermosensitive glass column 9 contacts the inner side of the water stopper 8.

[0029] The thermosensitive glass column 9 can be selected from a variety of thermosensitive specifications to suit the temperature environment and fire protection requirements of different places. When a fire occurs indoors and the ambient temperature reaches the preset operating temperature of the thermosensitive glass column 9, the special liquid inside it expands rapidly due to the heat, causing the outer glass shell to break. At this time, the water stopper 8 loses its support and is forcefully opened by the water flow rushing down from the connecting pipe 4. The water flow impacts the impeller 605, driving the dustproof shell 601 to rotate synchronously. At the same time, the foam block 611 floats up along the guide groove 610 under the buoyancy of the water, opens the water sprinkling hole 608 channel, and the water flows out from the water sprinkling hole 608 evenly and expands the coverage area. In non-fire periods, the dustproof shell 601 effectively prevents dust from entering.

[0030] The assembly mechanism 7 is located at the top of the mounting base 3 and includes a sleeve 701 and two assembly columns 702. The sleeve 701 has two L-shaped assembly slots 703 formed inside, and an arcuate groove 704 formed inside the L-shaped assembly slots 703. One end of the two assembly columns 702 is fixedly connected to the outside of the connecting tube 4, and the outer sides of the assembly columns 702 are slidably connected to the inner sides of the L-shaped assembly slots 703. The outer side of the sleeve 701 is threadedly connected to two lifting columns 705, and the outer sides of the lifting columns 705 contact the outer sides of the assembly columns 702. The sleeve 701 has an assembly groove 706 formed inside, and the inner side of the assembly groove 706 is slidably connected to the outer side of the connecting tube 4. The inner side of the assembly groove 706 and the top of the connecting tube 4 are both provided with an annular mounting groove 707. A sealing ring 708 is provided inside the assembly groove 706, and the outer side of the sealing ring 708 is in contact with the inner sides of the two annular mounting grooves 707.

[0031] When connecting the connecting tube 4 to the sleeve 701, first insert the assembly column 702 into the inner side of the L-shaped assembly slot 703, and then rotate the lifting column 705. Because the middle part of the lifting column 705 is designed as a cone, as it is screwed into the sleeve 701, the inclined surface of the cone squeezes the assembly column 702 and moves it toward the arc groove 704, improving the fit between the annular mounting groove 707 and the sealing ring 708, enhancing the sealing performance, and avoiding the corrosion problem of traditional threaded connections.

[0032] Specifically, during installation, construction workers first precisely align sleeve 701 with the building's fire hose. They rotate sleeve 701 to perfectly align with the hose's threads, ensuring a leak-proof connection. This step allows water from the hose to flow smoothly into connecting pipe 4, paving the way for subsequent sprinkler firefighting. Construction workers then securely bolt mounting ring 1 to the designated location on the indoor ceiling. By evenly tightening multiple bolts, they ensure the entire system is securely installed, capable of withstanding water impact and daily vibrations.

[0033] As a key temperature sensing component, the thermosensitive glass column 9 can be selected from a variety of thermosensitive specifications to suit the temperature environment and fire protection requirements of different places. For example, in places with high ambient temperatures such as high-temperature workshops, thermosensitive glass columns 9 with higher operating temperatures will be selected; while in ordinary office areas, specifications with standard operating temperatures will be selected. When a fire occurs indoors, the ambient temperature rises sharply, reaching the preset operating temperature of the thermosensitive glass column 9, and the special liquid inside it will expand rapidly due to the heat, and the strong expansion force will cause the outer glass shell to rupture instantly. At this time, the water stopper 8 that was originally blocked at the water outlet 5 will be forcibly flushed open by the water flow rushing down from the connecting pipe 4 due to the loss of support from the thermosensitive glass column 9, and the water flow will be able to flow down. This process is rapid and reliable, ensuring that the sprinkler device can be started in time at the critical moment of a fire.

[0034] As the water falls, it directly impacts impeller 605. Because impeller 605 is rotatably connected to fixed collar 603 via shaft 604, and the bottom of shaft 604 is fixed to the inner bottom wall of dustproof housing 601, the impact of the water flow causes impeller 605 to begin rotating at high speed, driving the connected dustproof housing 601 to rotate synchronously. Simultaneously, foam block 611 within dustproof housing 601, driven by the buoyancy of the water, slowly rises along guide groove 610 defined within guide shell 609. Once foam block 611 reaches a certain position, the previously blocked watering holes 608 are opened, allowing water to flow evenly from these holes. Because dustproof housing 601 continuously rotates, the water flow not only sprays evenly but also expands its coverage area as it rotates, significantly improving firefighting efficiency and effectiveness. During non-fire periods, the dustproof housing 601 tightly wraps the internal structure, effectively preventing dust and other impurities from entering, reducing erosion and damage to internal components, and extending the service life of the device.

[0035] The connection design between the connecting pipe 4 and the sleeve 701 is unique, using the method of inserting the combination column 702 into the inner side of the L-shaped combination slot 703. In the early stage of installation, the construction workers will accurately align the combination column 702 with the vertical part of the L-shaped combination slot 703 and slide it to the bottom. Then, they will rotate the connecting pipe 4 so that the combination column 702 will slide along the horizontal part of the L-shaped combination slot 703, and preliminarily complete the assembly of the connecting pipe 4 and the sleeve 701. Subsequently, the construction workers will rotate the lifting column 705 so that it is gradually screwed into the interior of the sleeve 701. Since the middle part of the lifting column 705 is a frustum design, as it is continuously screwed in, the inclined surface of the frustum will gradually squeeze the combination column 702, prompting the combination column 702 to move toward the arc groove 704. In this process, the fit between the annular mounting groove 707 and the sealing ring 708 is continuously improved, and the sealing performance is significantly enhanced. Compared with traditional threaded connections, this installation method is not only more convenient and efficient to operate, but also effectively avoids thread corrosion problems caused by long-term use, humid environment and other factors, ensuring the stability and sealing of the connection, so that the sprinkler device can always maintain a reliable working state during long-term use.

[0036] Working principle: First, the sleeve 701 is connected to the fire water pipe in the building, and the mounting ring 1 is installed on the indoor ceiling with bolts. When a fire occurs indoors and the temperature rises, the thermosensitive glass column 9 can select the appropriate thermosensitive specifications according to actual needs. When the ambient temperature rises to a certain temperature, the liquid inside the thermosensitive glass column 9 will expand rapidly, causing the outer glass shell to break. In this way, the water stopper 8 will be flushed open by the water flow rushing down from the water outlet 5, and then the water flow will impact the impeller 605, causing the impeller 605 to drive the dustproof shell 601 to rotate. At the same time, the foam block 611 will be affected by the buoyancy of the water and will float up along the guide groove 610, thereby opening the channel of the sprinkler hole 608. In this way, the water flow will be evenly distributed from multiple sprinkler holes 6 08 and rotates at the same time, which increases the coverage area while ensuring the spraying amount. In normal times, the dustproof shell 601 is used to prevent dust from affecting its internal structure. In addition, the installation between the connecting pipe 4 and the sleeve 701 adopts the design of the combination column 702 being stuck into the inner side of the L-shaped combination slot 703, and the middle part of the lifting column 705 adopts a frustum design. As it is screwed into the interior of the sleeve 701, its inclined surface will squeeze the combination column 702, causing it to move toward the position of the arc groove 704, thereby increasing the sealing degree between the annular installation groove 707 and the sealing ring 708, improving the sealing performance while adopting a more convenient installation method, while avoiding the rust phenomenon of traditional threaded connections.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic fire sprinkler device for a building, comprising a mounting ring (1) and an assembly mechanism (7), characterized in that: The inner side of the mounting ring (1) is fixedly connected to a plurality of connecting plates (2), one end of each of the plurality of connecting plates (2) is fixedly connected to a mounting seat (3), the interior of the mounting seat (3) is fixedly connected to a connecting pipe (4), the bottom of the connecting pipe (4) is provided with a water outlet (5), the outer side of the mounting seat (3) is provided with a spray mechanism (6), the spray mechanism (6) comprises a dustproof shell (601), the inner side of the dustproof shell (601) is provided with an annular limiting groove (607), the outer side of the mounting seat (3) is fixedly connected to two arc-shaped limiting strips (606), the outer side of the arc-shaped limiting strips (606) is engaged with the inner side of the annular limiting groove (607).

2. The automatic fire sprinkler system for buildings according to claim 1, characterized in that: The bottom of the mounting seat (3) is fixedly connected to two fixing rods (602), the bottom ends of the two fixing rods (602) are fixedly connected to fixing collars (603), the inner side of the fixing collars (603) is rotatably connected to a rotating shaft (604), the outer side of the rotating shaft (604) is fixedly connected to an impeller (605), and the bottom of the rotating shaft (604) is fixedly connected to the inner bottom wall of the dustproof housing (601).

3. The automatic fire sprinkler system for buildings according to claim 2, characterized in that: The interior of the dustproof housing (601) is provided with a plurality of water sprinkling holes (608), and the inner wall of the dustproof housing (601) is fixedly connected with a plurality of groups of guide shells (609), with each group of guide shells (609) having two members.

4. The automatic fire sprinkler system for buildings according to claim 3, characterized in that: A guide groove (610) is provided inside the guide shell (609), and a plurality of foam blocks (611) are slidably connected to the inner wall of the dustproof shell (601), and the outer sides of the foam blocks (611) are slidably connected to the inner sides of the two guide grooves (610).

5. The automatic building fire sprinkler system according to claim 4, characterized in that: A water stopper (8) is provided inside the dustproof housing (601), and the outer side of the water stopper (8) contacts the inner side of the water outlet hole (5). A heat-sensitive glass column (9) is provided on the top of the rotating shaft (604), and the top of the heat-sensitive glass column (9) contacts the inner side of the water stopper (8).

6. The automatic fire sprinkler system for buildings according to claim 1, characterized in that: The assembly mechanism (7) is located on the top of the mounting seat (3). The assembly mechanism (7) comprises a sleeve (701) and two combination columns (702). Two L-shaped combination slots (703) are provided inside the sleeve (701), and an arc-shaped slot (704) is provided inside the L-shaped combination slots (703).

7. The automatic fire sprinkler system for buildings according to claim 6, characterized in that: One end of the two combined columns (702) is fixedly connected to the outside of the connecting pipe (4), and the outside of the combined columns (702) is slidably connected to the inside of the L-shaped combined slot (703).

8. The automatic building fire sprinkler system according to claim 7, characterized in that: The outer side of the sleeve (701) is threadedly connected to two lifting columns (705), and the outer sides of the lifting columns (705) are in contact with the outer sides of the combined columns (702).

9. The automatic building fire sprinkler system according to claim 8, characterized in that: An assembly groove (706) is provided on the inner side of the sleeve (701), the inner side of the assembly groove (706) is slidably connected to the outer side of the connecting pipe (4), and an annular mounting groove (707) is provided on the inner side of the assembly groove (706) and the top of the connecting pipe (4).

10. The automatic building fire sprinkler system according to claim 9, characterized in that: A sealing ring (708) is provided inside the assembly groove (706), and the outer side of the sealing ring (708) is in contact with the inner sides of the two annular mounting grooves (707).

Images