High-precision fire-fighting spray head with built-in backflow prevention device

Abstract

The utility model relates to the technical field of fire-fighting spray heads, and discloses a high-precision fire-fighting spray head with a built-in anti-backflow device, which comprises a disc top, the bottom of the disc top is fixedly connected with a fixed frame, the inside of the fixed frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a bent handle, and the bent handle is fixedly connected with the anti-backflow device. A water pump is rotationally connected into the bent handle, and angle adjusting assemblies are arranged on the two sides of the fixing frame. The angle adjusting assembly comprises an L-shaped rod and a supporting column, one end of the L-shaped rod is fixedly connected to the outer wall of the fixing frame, and the supporting column is rotationally connected to the interior of the L-shaped rod. According to the utility model, the output end of the motor drives the bent handle to rotate, and meanwhile, the water pump rotates to drive the hollow frame and the supporting rod to rotate in the L-shaped rod, so that the effect of performing rotary spraying on the spraying head is achieved, the problem that when a fire disaster occurs, the fixed spraying head is difficult to extinguish a larger area is solved, and the applicability of the fire-fighting spraying head is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire sprinkler head technology, and in particular to a high-precision fire sprinkler head with a built-in anti-backflow device. Background Technology

[0002] As a vital facility for protecting people's lives and property, the performance of fire protection systems directly affects the effectiveness of fire extinguishing during disasters. Fire sprinkler systems, as the most common automatic fire extinguishing equipment, are widely used in various buildings. High-precision fire sprinkler heads play a crucial role in ensuring the uniformity and coverage of the extinguishing agent spray. However, in actual use, fixed sprinkler heads often face limitations in effectively covering large areas, especially when fires spread rapidly. The extinguishing effect of traditional sprinkler heads is relatively limited. During fire supervision and inspection, the selection of fire sprinkler heads is particularly important. To ensure fire extinguishing effectiveness and prevent backflow of water, anti-backflow sprinkler heads are widely used. This design can effectively prevent water from flowing back from the fire scene and contaminating the water supply system or other equipment during sprinkler head damage or maintenance, thereby improving the overall safety and reliability of the system. The anti-backflow design not only complies with fire safety regulations but also ensures the long-term stable operation of the sprinkler system.

[0003] Existing fire sprinkler heads typically consist of a fixed sprinkler head, pipe connection devices, and components such as springs and valves. The spray direction and water flow rate of the sprinkler head are usually controlled by fixed angle and flow control devices. Most existing sprinkler heads use water pressure to drive the spray, and their water flow direction is mostly fixed, with the water flow controlled by opening and closing valves.

[0004] A significant problem with existing fire sprinkler technology is that fixed sprinklers cannot effectively extinguish fires over larger areas. Because traditional sprinklers are usually fixed in one position and have limited spray angle and range, when a fire occurs, especially when the fire spreads, the fire extinguishing effect of the sprinkler cannot meet the needs of large-area fire extinguishing. This not only leads to low fire extinguishing efficiency but also increases the risk of fire spread. To address this issue, a high-precision fire sprinkler head with a built-in anti-backflow device is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-precision fire sprinkler head with a built-in anti-backflow device, which aims to improve the problem that fixed sprinklers are difficult to extinguish fires over larger areas when a fire occurs.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-precision fire sprinkler head with a built-in anti-backflow device, including a disc top, a fixed frame fixedly connected to the bottom of the disc top, a motor fixedly connected inside the fixed frame, a bending handle fixedly connected to the output end of the motor, a water pump rotatably connected inside the bending handle, and angle adjustment components provided on both sides of the fixed frame.

[0007] The angle adjustment assembly includes an L-shaped rod and a support column. One end of the L-shaped rod is fixedly connected to the outer wall of the fixed frame, and the support column is rotatably connected inside the L-shaped rod. An adjustment assembly is provided inside the support column. A guide pipe is fixedly connected to the output end of the water pump. A nozzle is provided at the bottom of the guide pipe, and a quick-release assembly is provided inside the guide pipe.

[0008] As a further description of the above technical solution:

[0009] The adjustment component includes a hollow frame, the outer wall of which is rotatably connected to one end of the support column.

[0010] As a further description of the above technical solution:

[0011] A support rod is rotatably connected inside the hollow frame, and one end of the support rod is rotatably connected to the outer wall of the water pump.

[0012] As a further description of the above technical solution:

[0013] The quick-release assembly includes a sliding sleeve, which is slidably connected to the outer wall of the guide tube.

[0014] As a further description of the above technical solution:

[0015] The guide tube is equipped with a retaining bead, which is slidably connected inside the guide tube.

[0016] As a further description of the above technical solution:

[0017] A spring is fitted on the outer wall of the guide tube. One end of the spring is fixedly connected to the outer wall of the guide tube, and the other end of the spring is fixedly connected to the inner wall of the sliding sleeve.

[0018] As a further description of the above technical solution:

[0019] The nozzle is slidably connected inside the guide tube, and the outer wall of the nozzle engages with the outer wall of the retaining bead.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the motor output drives the bent handle to rotate, causing the water pump to rotate. At the same time, the rotation of the water pump drives the hollow frame and support rod to rotate inside the L-shaped rod, and the support rod rotates inside the hollow frame, thereby achieving the effect of rotating the sprinkler head to spray. This solves the problem that fixed sprinklers are difficult to extinguish fires in larger areas when a fire occurs, and improves the applicability of fire sprinklers.

[0022] 2. In this utility model, the sliding sleeve slides on the outer wall of the guide pipe. When the sliding sleeve slides, it compresses the spring, causing the sliding sleeve to separate from the locking state of the locking ball. Then, the nozzle squeezes the locking ball, thereby achieving the effect of quickly replacing the fire sprinkler head. This solves the problem that the sprinkler head cannot be removed when it is blocked or damaged, and improves the service life of the fire sprinkler head. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a high-precision fire sprinkler head with a built-in anti-backflow device proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the guide pipe structure of a high-precision fire sprinkler head with a built-in anti-backflow device proposed in this utility model;

[0025] Figure 3 This is a cross-sectional structural diagram of the sliding sleeve of a high-precision fire sprinkler head with a built-in anti-backflow device proposed in this utility model.

[0026] Legend:

[0027] 1. Disc top; 2. Fixed frame; 3. Motor; 4. L-shaped rod; 5. Bending handle; 6. Water pump; 7. Support column; 8. Hollow frame; 9. Support rod; 10. Guide pipe; 11. Sliding sleeve; 12. Nozzle; 13. Spring; 14. Clamping ball. Detailed Implementation

[0028] 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.

[0029] Reference Figure 1 - Figure 3An embodiment of this utility model is provided: a high-precision fire sprinkler head with a built-in anti-backflow device, including a disc top 1, a fixed frame 2 fixedly connected to the bottom of the disc top 1, a motor 3 fixedly connected inside the fixed frame 2, a curved handle 5 fixedly connected to the output end of the motor 3, a water pump 6 rotatably connected inside the curved handle 5, and angle adjustment components provided on both sides of the fixed frame 2.

[0030] The angle adjustment assembly includes an L-shaped rod 4 and a support column 7. One end of the L-shaped rod 4 is fixedly connected to the outer wall of the fixed frame 2, and the support column 7 is rotatably connected inside the L-shaped rod 4. An adjustment assembly is installed inside the support column 7, which can adjust the angle of the support column 7, allowing the spray angle of the entire sprinkler head to be precisely adjusted as needed, providing a more flexible usage method. A guide pipe 10 is fixedly connected to the output end of the water pump 6, and a nozzle 12 is installed at the bottom of the guide pipe 10. A quick-release assembly is installed inside the guide pipe 10, which can quickly disassemble and install the guide pipe 10 and the nozzle 12, facilitating maintenance and replacement, while preventing water backflow and improving the overall efficiency of the fire sprinkler head. This design, through the built-in anti-backflow device, can effectively avoid the safety hazards caused by water backflow, ensuring the accuracy and stability of the water flow during each spray. The anti-backflow sprinkler head 12 complies with the "Code for Design of Automatic Sprinkler Systems" (GB50084) standard and can be subject to fire supervision and inspection.

[0031] Reference Figure 1 - Figure 3The adjusting assembly includes a hollow frame 8, the outer wall of which is rotatably connected to one end of a support column 7. A support rod 9 is rotatably connected inside the hollow frame 8, with one end of the support rod 9 rotatably connected to the outer wall of a water pump 6. The rotatable connection of the hollow frame 8 and the movement of the support rod 9 allow the adjusting assembly to flexibly adjust its position, thereby achieving precise control of the water flow direction and ensuring stable and uniform water flow distribution. The connection to the outer wall of the water pump 6 provides a power source, ensuring the normal operation of the structure. The quick-release assembly includes a sliding sleeve 11, which is slidably connected to the outer wall of a guide pipe 10. A retaining bead 14 is provided inside the tube 10. The retaining bead 14 is slidably connected inside the guide tube 10. The sliding connection between the retaining bead 14 and the guide tube 10 allows the retaining bead 14 to be easily adjusted or locked inside the guide tube 10 when needed, thereby ensuring the efficiency of quick disassembly. The connection between the sliding sleeve 11 and the guide tube 10 ensures the stability of the component and also facilitates quick disassembly and maintenance. A spring 13 is sleeved on the outer wall of the guide tube 10. One end of the spring 13 is fixedly connected to the outer wall of the guide tube 10, and the other end of the spring 13 is fixedly connected to the inner wall of the sliding sleeve 11. Spring 13 provides a restoring force, ensuring that the sliding sleeve 11 can maintain a predetermined relative position during use, preventing excessive movement or loosening of the sliding sleeve 11, and increasing the stability and reliability of the component. The nozzle 12 is slidably connected inside the guide tube 10, and the outer wall of the nozzle 12 engages with the outer wall of the retaining bead 14. The engagement design of the nozzle 12 and the retaining bead 14 ensures that the nozzle 12 can maintain a stable connection during operation, avoiding loosening or positional displacement of the nozzle 12 due to external factors, thereby improving the uniformity and accuracy of the spraying effect.

[0032] Working principle: When using the fire sprinkler head 12 for fire extinguishing, the output end of the starting motor 3 first drives the bending handle 5 to rotate. The bending handle 5 rotates in a circular motion, which in turn drives the water pump 6 and the sprinkler head 12 to rotate. During the rotation of the water pump 6, the support rod 9 is displaced. During the displacement of the support rod 9, the hollow frame 8 and the support column 7 rotate inside the L-shaped rod 4, which limits the movement of the water pump 6 and ensures the stability of the water pump 6 during rotation. This achieves the purpose of adjusting the angle of the fire sprinkler head. Then, the sliding sleeve 11 compresses the spring 13. When the sliding sleeve 11 slides, it separates the locking ball 14 from the inside of the sliding sleeve 11, allowing the locking ball 14 to slide inside the guide tube 10. Then, the nozzle 12 can slide inside the guide tube 10. The sliding of the nozzle 12 inside the guide tube 10 achieves the purpose of disassembling and installing the nozzle 12. Then, by releasing the sliding of the sliding sleeve 11, the spring 13 releases its elastic force, which pushes the locking ball 14 against the inner wall of the sliding sleeve 11, so that the locking ball 14 is locked inside the nozzle 12, thereby achieving the purpose of fixing the nozzle 12.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision fire-fighting spray head with built-in backflow-prevention device, comprising a disc top (1), characterized in that: The disc top (1) bottom fixedly connected with fixed frame (2), the fixed frame (2) inside fixedly connected with motor (3), the motor (3) output fixedly connected with curved handle (5), the curved handle (5) inside rotatably connected with water pump (6), the fixed frame (2) both sides are provided with angle adjusting assembly; The angle adjusting assembly includes L-shaped rod (4) and support column (7), one end of the L-shaped rod (4) is fixedly connected to the outer wall of the fixed frame (2), the support column (7) is rotatably connected inside the L-shaped rod (4), the support column (7) is provided with adjusting assembly inside, the water pump (6) output is fixedly connected with the flow guide pipe (10), the flow guide pipe (10) bottom is provided with spray head (12), the flow guide pipe (10) is provided with quick release assembly inside.

2. A high-precision fire-fighting spray head with a built-in backflow prevention device according to claim 1, characterized in that: The adjusting assembly includes hollow frame (8), the outer wall of the hollow frame (8) is rotatably connected to one end of the support column (7).

3. A high accuracy fire sprinkler head with a built-in backflow prevention device according to claim 2, wherein: The hollow frame (8) is rotatably connected with a support rod (9) inside, one end of the support rod (9) is rotatably connected to the outer wall of the water pump (6).

4. A high accuracy fire sprinkler head with a built-in backflow prevention device according to claim 1, wherein: The quick release assembly includes a sliding sleeve (11), the sliding sleeve (11) is slidingly connected to the outer wall of the flow guide pipe (10).

5. A high accuracy fire sprinkler head with a built-in backflow prevention device according to claim 4, wherein: The flow guide pipe (10) is provided with a clamping bead (14) inside, the clamping bead (14) is slidingly connected inside the flow guide pipe (10).

6. A high accuracy fire sprinkler head with a built-in backflow prevention device according to claim 5, wherein: The outer wall of the flow guide pipe (10) is provided with a spring (13), one end of the spring (13) is fixedly connected to the outer wall of the flow guide pipe (10), the other end of the spring (13) is fixedly connected to the inner wall of the sliding sleeve (11).

7. A high accuracy fire sprinkler head with built-in backflow prevention device as defined in claim 1, wherein: The spray head (12) is slidingly connected inside the flow guide pipe (10), the outer wall of the spray head (12) is engaged with the outer wall of the clamping bead (14).

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