Flow-controllable shower nozzle for fire fighting

Abstract

The utility model discloses a flow-controllable deluge nozzle for fire fighting, which comprises a threaded pipe, the lower part of the threaded pipe is communicated with an electromagnetic valve, the tail end of the electromagnetic valve is communicated with a spraying pipe through a second sealing bearing, and the outer wall of the spraying pipe is communicated with nozzles of different models and water spraying ranges. And a flow control mechanism is mounted in the spraying pipe. The utility model relates to the technical field of fire fighting, through the cooperation of the first telescopic rod, the baffle and the spraying pipe, after open fire is extinguished, the baffle is driven by the first telescopic rod to block the water inlet of the large-flow nozzle, only the small-flow nozzle is kept to spray water outwards, fire reburning is prevented, water sources can be saved, and the fire extinguishing efficiency is improved. The problems that in the using process of an existing shower nozzle, the water spraying amount cannot be controlled according to the fire situation, a large amount of water is still sprayed after open fire is extinguished, and important articles in warehouses and offices are secondarily damaged are solved, and the shower nozzle can be repeatedly used.

Description

Technical Field

[0001] This utility model relates to the field of fire sprinkler technology, specifically a controllable flow rain sprinkler head for fire fighting. Background Technology

[0002] Deluge nozzles are a crucial component of fire safety protection, serving both fire detection and extinguishing functions.

[0003] Most existing deluge nozzles are disposable. In the event of a fire, they use a glass bulb to press a temperature-sensitive liquid to automatically spray water.

[0004] Existing deluge sprinklers cannot control the amount of water sprayed according to the size of the fire, resulting in a large amount of water continuing to spray even after the open flame has been extinguished, causing secondary damage to important items in warehouses and offices. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a controllable flow deluge sprinkler head for fire fighting, which solves the problem that existing deluge sprinklers cannot control the water volume according to the size of the fire, resulting in a large amount of water continuing to spray even after the open flame has been extinguished, causing secondary damage to important items in warehouses and offices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a controllable flow rain shower head for fire protection, comprising a threaded pipe, a solenoid valve connected to the lower part of the threaded pipe, a flexible hose connected to the end of the solenoid valve, a water inlet pipe connected to the lower part of the flexible hose, and a flow control mechanism connected to the end of the water inlet pipe. The flow control mechanism comprises a first sealed bearing, a shower pipe, a stopper, and a first telescopic rod. The shower pipe is rotatably connected to the water inlet pipe via the first sealed bearing. A first telescopic rod is provided below the shower pipe, the output end of the first telescopic rod extends into the interior of the shower pipe, and a stopper is fixedly connected to the output end of the first telescopic rod. The outer wall of the stopper is fitted against the inner wall of the shower pipe.

[0007] Preferably, an installation plate is fixedly connected to the outer wall of the water inlet pipe, an installation bracket is fixedly connected to the bottom of the outer wall of the installation plate, a second sealing bearing is fixedly connected to the end of the installation bracket, an installation block is rotatably connected to the inner wall of the second sealing bearing, a waterproof shell is fixedly connected to the top of the installation block, and the bottom of the inner wall of the waterproof shell is fixedly connected to the bottom of the first telescopic rod.

[0008] Preferably, the outer wall of the spray pipe is connected to a first straight nozzle and a first curved nozzle, which are arranged in a ring at equal intervals. A second straight nozzle is disposed below the first straight nozzle, and a third straight nozzle is disposed below the second straight nozzle. Both the second and third straight nozzles are connected to the outer wall of the spray pipe. A second curved nozzle is disposed below the first curved nozzle, and a third curved nozzle is disposed below the second curved nozzle. Both the second and third curved nozzles are connected to the outer wall of the spray pipe. The outer walls of the first, second, third, first, second, and third straight nozzles, as well as the first, second, and third curved nozzles, are provided with multiple nozzles.

[0009] Preferably, a sensor is fixedly connected to the bottom of the mounting block, and a waterproof cover is provided around the outer wall of the sensor, which is fixedly connected to the bottom of the mounting block.

[0010] Preferably, a fixing plate is fixedly connected to the outer wall of the solenoid valve, and a second telescopic rod is rotatably connected to both sides of the bottom of the fixing plate. The output ends of the two second telescopic rods are rotatably connected to the top of the mounting plate through pins.

[0011] Beneficial effects

[0012] This utility model provides a controllable flow deluge sprinkler head for fire fighting. It has the following advantages: Through the cooperation of a first telescopic rod, a baffle, and a spray pipe, this controllable flow deluge sprinkler head, after the open flame has been extinguished, uses the first telescopic rod to drive the baffle to block the inlet of the high-flow sprinkler head, allowing only the low-flow sprinkler head to spray water outwards. This solves the problem of existing deluge sprinklers being unable to control the water volume according to the size of the fire, resulting in excessive water spraying even after the open flame has been extinguished, causing secondary damage to important items in warehouses and offices.

[0013] With the cooperation of the second telescopic rod, hose and fixing plate, the second telescopic rod drives the nozzle to rotate to both sides. According to the temperature signal fed back by the sensor, the nozzle is rotated to the direction of higher temperature, so that the water flow can extinguish open flames as much as possible and improve fire extinguishing efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Structural diagram of the middle baffle, spray pipe and mounting bracket;

[0016] Figure 3 for Figure 1 A schematic diagram of the structure of the first direct-drive nozzle, spray pipe, and spray outlet;

[0017] Figure 4 for Figure 1A schematic diagram of the structure of the first telescopic rod, the second sealed bearing, and the sensor.

[0018] In the diagram: 1. Threaded pipe; 2. Solenoid valve; 3. Water inlet pipe; 4. Spray pipe; 5. First straight nozzle; 6. Second straight nozzle; 7. Third straight nozzle; 8. First curved nozzle; 9. Second curved nozzle; 10. Third curved nozzle; 11. Nozzle; 12. Mounting plate; 13. Mounting bracket; 14. Second sealed bearing; 15. Mounting block; 16. Waterproof shell; 17. First telescopic rod; 18. Plug; 19. Sensor; 20. Waterproof cover; 21. First sealed bearing; 22. Second telescopic rod; 23. Hose; 24. Fixing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Existing fire sprinkler heads cannot control the water volume according to the size of the fire, resulting in a large amount of water continuing to spray even after the open flame has been extinguished, causing secondary damage to important items in warehouses and offices.

[0021] In view of this, this embodiment provides a novel controllable flow deluge sprinkler head for fire fighting. Through the cooperation of the first telescopic rod, the baffle, and the sprinkler pipe, after the open flame has been extinguished, the first telescopic rod drives the baffle to block the water inlet of the high-flow sprinkler head, leaving only the low-flow sprinkler head to spray water outward. This solves the problem that existing deluge sprinklers cannot control the water volume according to the size of the fire during use, resulting in a large amount of water still being sprayed after the open flame has been extinguished, causing secondary damage to important items in warehouses and offices.

[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0023] Example 1: By Figure 1-4It is known that a controllable flow rain shower head for fire protection includes a threaded pipe 1, a solenoid valve 2 connected to the lower part of the threaded pipe 1, a flexible hose 23 connected to the end of the solenoid valve 2, a water inlet pipe 3 connected to the lower part of the flexible hose 23, and a flow control mechanism connected to the end of the water inlet pipe 3. The flow control mechanism includes a first sealed bearing 21, a spray pipe 4, a stopper 18, and a first telescopic rod 17. The spray pipe 4 is rotatably connected to the water inlet pipe 3 through the first sealed bearing 21. The first telescopic rod 17 is provided below the spray pipe 4. The output end of the first telescopic rod 17 extends into the interior of the spray pipe 4, and the output end of the first telescopic rod 17 is fixedly connected to the stopper 18. The outer wall of the stopper 18 is attached to the inner wall of the spray pipe 4.

[0024] In the specific implementation process, it is worth noting that the thread on the outer wall of the threaded pipe 1 is the part where the sprinkler head connects to the fire water pipe. The model of the solenoid valve 2 is not limited, as long as it meets the actual use requirements. The solenoid valve 2 can control whether the water source is connected to the inside of the sprinkler head, so that the water source can be shut off when the lower mechanism is repaired and disassembled. After the sprinkler head is installed, when a fire occurs, the high-pressure water in the fire water pipe enters the sprinkler pipe 4 and quickly fills all the sprinklers, and sprays out in a wide range through the nozzle 11 to extinguish the fire in time. When the open flame is extinguished, the first telescopic rod 17 drives the stopper 18 to move upward and block the water inlet of the upper sprinkler head in turn. According to the ambient temperature fed back by the sensor 19, one or two rows of sprinklers are selected to keep spraying water to prevent the fire from reigniting. The sensor 19 transmits the signal to the external controller, and the controller controls the solenoid valve 2 to adjust and control the water inlet, thereby controlling the water pressure sprayed by the sprinkler pipe 4.

[0025] Furthermore, an installation plate 12 is fixedly connected to the outer wall of the water inlet pipe 3, and an installation bracket 13 is fixedly connected to the bottom of the outer wall of the installation plate 12. A second sealing bearing 14 is fixedly connected to the end of the installation bracket 13. An installation block 15 is rotatably connected to the inner wall of the second sealing bearing 14, and a waterproof shell 16 is fixedly connected to the top of the installation block 15. The bottom of the inner wall of the waterproof shell 16 is fixedly connected to the bottom of the first telescopic rod 17.

[0026] In the specific implementation process, it is worth noting that the mounting plate 12 and the mounting bracket 13 are the fixing components of this nozzle, the mounting block 15 is the fixing component of the first telescopic rod 17, and the waterproof shell 16 can prevent water from entering the first telescopic rod 17 and ensure its normal operation.

[0027] Furthermore, the outer wall of the spray pipe 4 is connected to a first straight nozzle 5 and a first curved nozzle 8, and the first straight nozzle 5 and the first curved nozzle 8 are arranged in a ring at equal intervals. A second straight nozzle 6 is arranged below the first straight nozzle 5, and a third straight nozzle 7 is arranged below the second straight nozzle 6. Both the second straight nozzle 6 and the third straight nozzle 7 are connected to the outer wall of the spray pipe 4. A second curved nozzle 9 is arranged below the first curved nozzle 8, and a third curved nozzle 10 is arranged below the second curved nozzle 9. Both the second curved nozzle 9 and the third curved nozzle 10 are connected to the outer wall of the spray pipe 4. Multiple nozzles 11 are opened on the outer walls of the first straight nozzle 5, the second straight nozzle 6, the third straight nozzle 7, the first curved nozzle 8, the second curved nozzle 9, and the third curved nozzle 10.

[0028] In the specific implementation process, it is worth noting that the straight nozzle and the curved nozzle are the water spraying components of this embodiment. Through the cooperation of the second sealing bearing 14 and the first sealing bearing 21, when the curved water pipe sprays water outward, the reaction force of the water flow is used to make the spray pipe 4 rotate, so that the water spraying effect is better and the fire extinguishing efficiency is higher. The lengths of the three rows of water spray pipes are different, increasing from top to bottom, and the spraying range also increases accordingly.

[0029] Specifically, when using this fire-fighting controllable flow rain sprinkler head, in the event of a fire, high-pressure water from the fire hose enters the sprinkler pipe 4 and quickly fills all the sprinklers, then sprays out over a wide area through the nozzle 11 to extinguish the fire in time. When the open flame is extinguished, the first telescopic rod 17 drives the stopper 18 to move upward, and selects the number of sprinklers to be retained according to the ambient temperature to prevent the fire from reigniting. The model and type of the first telescopic rod 17 are not limited, as long as they meet the actual use requirements. The first telescopic rod 17 needs to be connected to an external control system.

[0030] Example 2: From Figure 1-4 It can be seen that a sensor 19 is fixedly connected to the bottom of the mounting block 15, and a waterproof cover 20 is provided around the outer wall of the sensor 19. The waterproof cover 20 is fixedly connected to the bottom of the mounting block 15.

[0031] In the specific implementation process, it is worth noting that the sensor 19 can be an infrared sensor, the waterproof cover 20 prevents water from getting on the surface of the sensor 19 and affecting its sensitivity, and the sensor 19 needs to be connected to an external control system to work.

[0032] Furthermore, a fixing plate 24 is fixedly connected to the outer wall of the solenoid valve 2, and a second telescopic rod 22 is rotatably connected to both sides of the bottom of the fixing plate 24. The output ends of the two second telescopic rods 22 are rotatably connected to the top of the outer wall of the mounting plate 12 through pins.

[0033] In the specific implementation process, it is worth noting that the model and type of the second telescopic rod 22 are not limited as long as they meet the actual use requirements. When the nozzle is working, the two second telescopic rods 22 connected to the bottom of the fixing plate 24 will reciprocate and extend in sequence, so that the nozzle can swing left and right, further increasing the spraying range. When the two ends of the second telescopic rod 22 are connected, a pin shaft and a bracket-type structure can be used for rotational connection.

[0034] Specifically, when a fire breaks out, high-pressure water from the fire hose enters the sprinkler pipe 4 and quickly fills all the nozzles, then sprays out over a wide area through the nozzles 11. The sprinkler pipe 4 rotates, and the second telescopic rod 22 drives the nozzles to swing, extinguishing the fire in time. When the open flame is extinguished, the first telescopic rod 17 drives the stopper 18 to move upward in sequence to block the water inlet of the upper nozzles. The solenoid valve 2 closes, and the first telescopic rod 17 resets. The stopper 18 moves with the first telescopic rod 17 to the designated position. Based on the ambient temperature fed back by the sensor 19, one or two rows of nozzles are selected to spray water to prevent the fire from reigniting. Various types of sensors can be installed according to actual usage needs to meet the requirements. In real life, fire protection facilities are equipped with safety control systems. Therefore, the telescopic rod, solenoid valve, and sensor used in this embodiment can all be electrically connected to the control device in the fire protection system.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

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

Claims

1. A controllable flow rain shower head for fire fighting, comprising a threaded pipe (1), characterized in that: A solenoid valve (2) is connected to the lower part of the threaded pipe (1), a hose (23) is connected to the end of the solenoid valve (2), a water inlet pipe (3) is connected to the lower part of the hose (23), and a flow control mechanism is connected to the end of the water inlet pipe (3). The flow control mechanism includes a first sealed bearing (21), a spray pipe (4), a baffle (18), and a first telescopic rod (17); The spray pipe (4) is rotatably connected to the water inlet pipe (3) via a first sealed bearing (21). A first telescopic rod (17) is provided below the spray pipe (4). The output end of the first telescopic rod (17) extends into the interior of the spray pipe (4), and a stopper (18) is fixedly connected to the output end of the first telescopic rod (17). The outer wall of the stopper (18) is attached to the inner wall of the spray pipe (4).

2. The fire-fighting controllable flow deluge sprinkler head according to claim 1, characterized in that: An installation plate (12) is fixedly connected to the outer wall of the water inlet pipe (3). An installation bracket (13) is fixedly connected to the bottom of the outer wall of the installation plate (12). A second sealing bearing (14) is fixedly connected to the end of the installation bracket (13). An installation block (15) is rotatably connected to the inner wall of the second sealing bearing (14). A waterproof shell (16) is fixedly connected to the top of the installation block (15). The bottom of the inner wall of the waterproof shell (16) is fixedly connected to the bottom of the first telescopic rod (17).

3. A controllable flow rain shower head for fire fighting according to claim 2, characterized in that: The outer wall of the spray pipe (4) is connected to a first straight nozzle (5) and a first curved nozzle (8), and the first straight nozzle (5) and the first curved nozzle (8) are arranged in a ring at equal intervals. A second straight nozzle (6) is provided below the first straight nozzle (5), and a third straight nozzle (7) is provided below the second straight nozzle (6). The second straight nozzle (6) and the third straight nozzle (7) are both connected to the outer wall of the spray pipe (4). A second curved nozzle (9) is provided below the first curved nozzle (8), and a third curved nozzle (10) is provided below the second curved nozzle (9). The second curved nozzle (9) and the third curved nozzle (10) are both connected to the outer wall of the spray pipe (4). The outer walls of the first straight nozzle (5), the second straight nozzle (6), the third straight nozzle (7), the first curved nozzle (8), the second curved nozzle (9), and the third curved nozzle (10) are all provided with multiple nozzles (11).

4. A controllable flow rain shower head for fire fighting according to claim 2, characterized in that: A sensor (19) is fixedly connected to the bottom of the mounting block (15). A waterproof cover (20) is provided around the outer wall of the sensor (19). The waterproof cover (20) is fixedly connected to the bottom of the mounting block (15).

5. A controllable flow rain shower head for fire fighting according to claim 1, characterized in that: The outer wall of the solenoid valve (2) is fixedly connected to a fixing plate (24), and the bottom sides of the fixing plate (24) are rotatably connected to second telescopic rods (22). The output ends of the two second telescopic rods (22) are rotatably connected to the top of the mounting plate (12) through pins.

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