A fire sprinkler head structure that is easy to clean

By introducing a filter disc, auger, and regulating mechanism into the fire sprinkler head, self-cleaning is achieved without interrupting the water flow, solving the inconvenience of having to cut off the water flow for cleaning in the existing technology, and improving the convenience and safety of the fire sprinkler head.

CN224269986UActive Publication Date: 2026-05-26JIANGSU FUMANXI INTELLIGENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU FUMANXI INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-04-15
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing fire sprinkler head structures that are easy to clean require the water flow to be cut off and the sprinkler head to be removed during cleaning, which makes cleaning inconvenient and reduces safety.

Method used

A fire sprinkler head structure including a filter disc, blades, auger, filter box, and adjustment mechanism was designed. The blades and auger are rotated by water flow, and impurities enter the filter box. After the water flow stops, the impurities and residual water flow enter the filter box, realizing self-cleaning. The adjustment mechanism adjusts the water flow size and switches through gear and rack meshing, and the observation hood monitors the water flow status.

Benefits of technology

It enables self-cleaning without interrupting the water flow, improving the convenience and practicality of the device and ensuring rapid response to fires and maintenance without having to shut off the water flow.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of fire protection equipment technology and discloses a fire sprinkler head structure that is easy to clean. It includes a water pipe, a filter disc fixedly connected to the lower inner part of the water pipe, a paddle rotatably connected to the bottom of the filter disc, and an auger fixedly connected to the top of the paddle through the filter disc. One-way valves are connected to the bottom of both sides of the water pipe, and discharge pipes are connected to the top of both sides of the water pipe. Filter boxes are fixedly connected to the left and right sides of the outer wall of the water pipe, and a sealing door is provided on the outside of the filter box. A hinge is fixedly connected to the outside of the sealing door. In this utility model, impurities flowing through the water are filtered by the filter disc. The water flow drives the paddle and auger to rotate, and the auger discharges the impurities into the filter box in the opposite direction of the water flow. After the water flow stops, the impurities at the bottom and the remaining water flow are discharged into the filter box through the one-way valves, enabling self-cleaning without interrupting the water flow.
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Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to a fire sprinkler head structure that is easy to clean. Background Technology

[0002] Fire sprinkler heads are a type of intelligent water spraying device in fire sprinkler systems. They can automatically start spraying water according to temperature changes at the fire scene to achieve the purpose of fire extinguishing. They are widely used in various buildings. In order to facilitate the cleaning of sprinkler heads and maintain their fire-fighting effect, a fire sprinkler head structure that is easy to clean is required.

[0003] The fire sprinkler head structure is designed for easy cleaning. Through special design, the sprinkler head is easy to disassemble, which facilitates thorough cleaning of the internal structure, ensures the normal operation of the fire protection system and water spraying efficiency, improves fire safety performance, and reduces maintenance difficulty and time.

[0004] Currently available fire sprinkler head structures that are easy to clean require shutting off the water supply and disassembling the sprinkler head before cleaning the inside. This cleaning method, which requires shutting off the water supply to prevent overflow, makes it difficult to react quickly in case of fire while cleaning the sprinkler head. Furthermore, this method of cleaning after disassembly makes it difficult to clean the sprinkler head quickly, thus reducing the convenience of the device. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a fire sprinkler head structure that is easy to clean, aiming to improve the problem that the existing sprinkler head requires cutting off the water flow and disassembling it for cleaning, which leads to cumbersome cleaning and reduced safety.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fire sprinkler head structure that is easy to clean, comprising a water pipe, a filter disc fixedly connected to the lower inner side of the water pipe, a paddle rotatably connected to the bottom of the filter disc, the top of the paddle penetrating the filter disc and fixedly connected to an auger, one-way valves connected to the bottom of both sides of the water pipe, discharge pipes connected to the top of both sides of the water pipe, filter boxes fixedly connected to the left and right sides of the outer wall of the water pipe, a sealing door provided on the outside of the filter box, a hinge fixedly connected to the outside of the sealing door, the sealing door being rotatably connected to the filter box through the hinge, an installation groove provided on the top of the water pipe, connecting frames fixedly connected to the left and right sides of the bottom of the water pipe, a glass body fixedly connected to the bottom inner side of the connecting frame, a water distribution plate fixedly connected to the bottom of the connecting frame, and an adjustment mechanism provided on the outside of the water pipe, the adjustment mechanism being used to adjust and switch the water flow intensity.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism includes an observation cover, which is fixedly connected to the top front side of the water pipe. A threaded rod is rotatably connected to the bottom inner side of the observation cover, and a rack is threadedly connected to the outer side of the threaded rod. A circular gear is rotatably connected to the inner side of the observation cover, and the circular gear meshes with the rack. A bevel gear is fixedly connected to the rear side of the circular gear through the water pipe. A perforated disc is fixedly connected to the top inner side of the water pipe, and a beveled gear is rotatably connected to the top of the perforated disc, meshing with the bevel gear.

[0009] As a further description of the above technical solution:

[0010] Positioning blocks are fixedly connected to both the front and rear sides of the filter box, and positioning holes are provided on the outer side of the positioning blocks.

[0011] As a further description of the above technical solution:

[0012] The filter box is fixedly connected to the front and rear sides of the top, and the sealing door is rotatably connected to the front and rear sides of the top, and the locking blocks engage with the locking blocks.

[0013] As a further description of the above technical solution:

[0014] The water pipe has handles on both the front and back sides of its bottom outer wall, and screws are threaded onto the left and right sides of the outer wall of each handle. The handles are threaded onto the water pipe via the screws.

[0015] As a further description of the above technical solution:

[0016] A positioning frame is connected to the middle of the front side of the water pipe, and an observation window is fixedly connected to the inner side of the positioning frame.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the connecting frame is fixedly connected to the front and rear sides of the frame, and the top of the bracket is fixedly connected to the water pipe.

[0019] As a further description of the above technical solution:

[0020] The observation cover has knobs rotatably connected to both the left and right sides of its outer wall. The knobs pass through the observation cover and are fixedly connected to the threaded rod.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the water pipe and the inlet pipe are connected by the mounting groove at the top of the water pipe. When a fire occurs, the high temperature causes the glass body to break, exposing the bottom of the water pipe to drain water, which is then dispersed and extinguished by the water distribution plate. Impurities in the water flow are filtered by the filter disc. The water flow drives the paddle and auger to rotate. The auger reverses the water flow and discharges the impurities into the filter box. After the water flow stops, the impurities at the bottom and the remaining water flow are discharged into the filter box through the one-way valve. Finally, the impurities are discharged from the bottom and collected. It can self-clean without cutting off the water flow, thereby improving the convenience of the device.

[0023] 2. In this utility model, the rack is moved by rotating the threaded rod. The rack drives the circular gear and the bevel gear to rotate synchronously through meshing, which in turn drives the bevel gear to rotate on the perforated disk. The bevel gear and the holes of the perforated disk intersect or overlap, adjusting the water flow and switching on / off, controlling the flow rate, and closing the anti-spraying device during maintenance. The observation cover can observe the position of the rack, determine the rotation angle of the bevel gear, adjust the water flow and perform on / off operations, and monitor the water flow status at the same time, thereby improving the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of a fire sprinkler head structure that is easy to clean, as proposed in this utility model.

[0025] Figure 2 This is a front view of a fire sprinkler head structure that is easy to clean, as proposed in this utility model.

[0026] Figure 3 This is a partial structural exploded view of a fire sprinkler head structure that is easy to clean, as proposed in this utility model.

[0027] Figure 4 A disassembled diagram of the water pipe structure of a fire sprinkler head structure that is easy to clean, as proposed in this utility model;

[0028] Figure 5 This is a partial structural diagram of the adjustment mechanism of a fire sprinkler head structure that is easy to clean, as proposed in this utility model.

[0029] Legend:

[0030] 1. Water pipe; 2. Adjustment mechanism; 201. Observation cover; 202. Circular gear; 203. Threaded rod; 204. Rack; 205. Bevel gear; 206. Bevel gear disc; 207. Perforated disc; 3. Glass body; 4. Connecting frame; 5. Water distribution plate; 6. Filter disc; 7. Paddle; 8. Screw; 9. Discharge pipe; 10. One-way valve; 11. Mounting groove; 12. Filter box; 13. Sealing door; 14. Hinge; 15. Positioning frame; 16. Observation window; 17. Handle; 18. Screw; 19. Positioning block; 20. Positioning hole; 21. Knob; 22. Locking block; 23. Locking groove block; 24. Bracket. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a fire sprinkler head structure that is easy to clean, including a water pipe 1. A filter disc 6 is fixedly connected to the lower inner side of the water pipe 1. A blade 7 is rotatably connected to the bottom of the filter disc 6. The top of the blade 7 passes through the filter disc 6 and is fixedly connected to an auger 8. The flow of water can drive the blade 7 and the auger 8 to rotate. One-way valves 10 are connected to the bottom of both sides of the water pipe 1, and discharge pipes 9 are connected to the top of both sides of the water pipe 1. As the auger 8 rotates, impurities can be sent into a filter box 12 through the discharge pipes 9. As the water flows, some water and impurities can be sent into the filter box 12 through the one-way valves 10. Filter boxes 12 are fixedly connected to the left and right sides of the outer wall of the water pipe 1. A filter box 12 is provided on the outer side of the filter box 12. A sealing door 13 is fixedly connected to a hinge 14 on its outer side. The sealing door 13 is rotatably connected to the filter box 12 through the hinge 14. Opening and closing the sealing door 13 through the hinge 14 facilitates cleaning of the filter box 12. A mounting groove 11 is provided on the top of the water pipe 1, which facilitates fixing the water pipe 1. A connecting frame 4 is fixedly connected to the bottom left and right sides of the water pipe 1. A glass body 3 is fixedly connected to the bottom inner side of the connecting frame 4. When the glass body 3 breaks, the bottom of the water pipe 1 can be opened to spray water. A water distribution plate 5 is fixedly connected to the bottom of the connecting frame 4. The water distribution plate 5 can evenly disperse the discharged water flow. An adjustment mechanism 2 is provided on the outer side of the water pipe 1. The adjustment mechanism 2 is used to adjust the water flow intensity and switch it on and off.

[0033] Specifically, to connect water pipe 1 to the water pump, the installation groove 11 at the top of water pipe 1 is used for installation. Then, water will flow smoothly into the interior of water pipe 1. In the event of a fire, the high temperature will cause the glass body 3 to rupture, exposing the bottom of water pipe 1. Water can then be discharged from water pipe 1 and dispersed through the water distribution plate 5 to achieve the fire extinguishing effect. At the same time, during the flow of water, impurities will be effectively filtered and intercepted by the filter disc 6. As the water continues to flow, it will drive the paddle 7 and the auger 8 to rotate together. The rotation of the auger 8 can push the impurities against the direction of water flow and finally discharge them from the discharge pipe 9 into the filter box 12. When the water flow stops, the impurities and remaining water at the bottom of water pipe 1 will enter the filter box 12 through the one-way valve 10. The water entering the filter box 12 will be discharged from the bottom, and all impurities will be collected in the filter box 12. Afterward, the sealing door 13 can be opened through the hinge 14 to facilitate cleaning of the filter box 12.

[0034] Reference Figure 2 , Figure 4 and Figure 5 The adjusting mechanism 2 includes an observation cover 201, which is fixedly connected to the top front side of the water pipe 1. A threaded rod 203 is rotatably connected to the bottom inner side of the observation cover 201, and a rack 204 is threadedly connected to the outer side of the threaded rod 203. When the threaded rod 203 rotates along the observation cover 201, it can drive the rack 204 to move left and right through the threaded connection. A circular gear 202 is rotatably connected to the inner side of the observation cover 201, and the circular gear 202 meshes with the rack 204. Through the meshing connection, the rack 204 can move left and right. When moving, it drives the circular gear 202 to rotate. The rear side of the circular gear 202 passes through the water pipe 1 and is fixedly connected to the bevel gear 205. As the circular gear 202 rotates, it can synchronously drive the bevel gear 205 to rotate. The top of the inner side of the water pipe 1 is fixedly connected to the perforated disk 207. The top of the perforated disk 207 is rotatably connected to the bevel gear 206. The bevel gear 206 meshes with the bevel gear 205. Rotating the bevel gear 205 can drive the bevel gear 206 to rotate along the perforated disk 207 through the meshing connection.

[0035] Specifically, when the threaded rod 203 is rotated, the threaded rack 204 slides left and right accordingly. The movement of the rack 204, through meshing, drives the circular gear 202 to rotate and simultaneously transmits the rotation to the bevel gear 205. The bevel gear 205 then meshes and drives the bevel gear disk 206 to rotate on the perforated disk 207. As the holes on the bevel gear disk 206 and the perforated disk 207 intersect or alternate, the device can adjust and control the water flow rate, and realize the opening and closing function of the water flow, so as to avoid water spraying during maintenance. At this time, the position of the rack 204 can be clearly seen through the observation cover 201, thereby inferring the rotation angle of the bevel gear disk 206. Based on this, the water flow rate can be accurately adjusted, and it can be determined whether the water flow is currently in an open or closed state.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The filter box 12 is fixedly connected to the front and rear sides with positioning blocks 19, and positioning holes 20 are opened on the outer side of the positioning blocks 19; the top front and rear sides of the filter box 12 are fixedly connected to the slot blocks 23; the top front and rear sides of the sealing door 13 are rotatably connected to the locking blocks 22, and the locking blocks 22 and the slot blocks 23 are engaged; the bottom front and rear sides of the outer wall of the water pipe 1 are provided with handles 17, and the left and right sides of the outer wall of the handles 17 are threaded with screws 18, and the handles 17 are threaded to the water pipe 1 through the screws 18.

[0037] Specifically, by installing threaded parts in the positioning holes 20 on the positioning block 19, the device can be easily installed and fixed. By rotating the locking block 22 and engaging with the locking slot block 23, the sealing effect of the sealing door 13 can be improved. By installing the handle 17 with screws 18, the device can be held and stored by the handle 17.

[0038] Reference Figure 1 , Figure 3 and Figure 4 A positioning frame 15 is connected to the middle of the front side of the water pipe 1. An observation window 16 is fixedly connected to the inner side of the positioning frame 15. The operation of the water pipe 1 can be viewed through the observation window 16 to check whether it is blocked. The front and rear sides of the outer wall of the connecting frame 4 are fixedly connected to the brackets 24. The top of the brackets 24 is fixedly connected to the water pipe 1. The brackets 24 can improve the structural strength and stability of the device. The left and right sides of the outer wall of the observation cover 201 are rotatably connected to the knobs 21. The knobs 21 pass through the observation cover 201 and are fixedly connected to the threaded rod 203. Rotating the knobs 21 can synchronously drive the threaded rod 203 to rotate.

[0039] Specifically, the observation window 16 inside the positioning frame 15 allows for easy observation of the internal operation of the device; the bracket 24 enhances the firmness and stability of the fixation between the water pipe 1 and the connecting frame 4; and the rotating knob 21 facilitates the movement of the threaded rod 203.

[0040] Working principle: Before using the device, the water pipe 1 is connected to the water pump through the mounting groove 11 at the top of the water pipe 1. Then the water will flow into the water pipe 1. When a fire occurs, the high temperature will force the glass body 3 to break and expose the bottom of the water pipe 1, so that the water flow can be discharged from the water pipe 1 and dispersed by the water distribution plate 5 for fire extinguishing. At the same time, when the water flows, the impurities in it will be filtered and intercepted by the filter plate 6. Then, as the water flows, the blades 7 and the auger 8 will rotate. At this time, the rotation of the auger 8 can reverse the water flow and discharge the impurities from the discharge pipe 9 into the filter box 12. When the water flow stops, the impurities and the remaining water at the bottom of the water pipe 1 will be discharged into the filter box 12 through the one-way valve 10. The water flowing into the filter box 12 will be discharged from the bottom and all the impurities in the water flow will be collected in it. Then, the sealing door 13 can be opened by the hinge 14 for cleaning. It can perform self-cleaning when the water flow is flowing without cutting off the water flow.

[0041] Furthermore, by rotating the threaded rod 203, the rack 204 can be moved left and right through the threaded connection. As the rack 204 moves, it can drive the circular gear 202 to rotate through the meshing connection. The rotation of the circular gear 202 synchronously drives the bevel gear 205 to rotate, which in turn drives the bevel gear 206 to rotate along the perforated disk 207 through the meshing connection. By intersecting and alternating the holes on the bevel gear 206 and the perforated disk 207, the size and on / off state of the water flow of the device can be adjusted, thereby controlling the water flow rate and closing to prevent water spraying during maintenance. At this time, the position of the rack 204 can be observed through the observation cover 201 to observe the rotation angle of the bevel gear 206, adjust the water flow rate and open / close it, and determine the current water flow rate and whether it is closed.

[0042] 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 fire sprinkler head structure for ease of cleaning comprising a water pipe (1) characterised in that: A filter disc (6) is fixedly connected to the lower inner side of the water pipe (1). A paddle (7) is rotatably connected to the bottom of the filter disc (6). The top of the paddle (7) passes through the filter disc (6) and is fixedly connected to an auger (8). A one-way valve (10) is connected to the bottom of both the left and right sides of the water pipe (1). A discharge pipe (9) is connected to the top of both the left and right sides of the water pipe (1). A filter box (12) is fixedly connected to the left and right sides of the outer wall of the water pipe (1). A sealing door (13) is provided on the outside of the filter box (12). The outer side of the sealing door (13) is... A hinge (14) is fixedly connected to the side. The sealing door (13) is rotatably connected to the filter box (12) through the hinge (14). An installation groove (11) is provided on the top of the water pipe (1). A connecting frame (4) is fixedly connected to the left and right sides of the bottom of the water pipe (1). A glass body (3) is fixedly connected to the bottom of the inner side of the connecting frame (4). A water distribution plate (5) is fixedly connected to the bottom of the connecting frame (4). An adjustment mechanism (2) is provided on the outer side of the water pipe (1). The adjustment mechanism (2) is used to adjust the water flow intensity and switch it on and off.

2. A fire sprinkler head structure for ease of cleaning according to claim 1, wherein: The adjustment mechanism (2) includes an observation cover (201), which is fixedly connected to the top front side of the water pipe (1). A threaded rod (203) is rotatably connected to the bottom inner side of the observation cover (201). A rack (204) is threadedly connected to the outer side of the threaded rod (203). A circular gear (202) is rotatably connected to the inner side of the observation cover (201). The circular gear (202) meshes with the rack (204). A bevel gear (205) is fixedly connected to the rear side of the circular gear (202) through the water pipe (1). A perforated disc (207) is fixedly connected to the top inner side of the water pipe (1). A beveled gear disc (206) is rotatably connected to the top of the perforated disc (207). The beveled gear disc (206) meshes with the bevel gear (205).

3. A fire sprinkler head structure for ease of cleaning according to claim 1, wherein: The filter box (12) is fixedly connected to the front and rear sides with positioning blocks (19), and positioning holes (20) are opened on the outer side of the positioning blocks (19).

4. The easily cleanable fire sprinkler head structure of claim 1, wherein: The filter box (12) is fixedly connected to the front and rear sides of the top with a slot block (23), and the sealing door (13) is rotatably connected to the front and rear sides of the top with a slot block (22), and the slot block (22) engages with the slot block (23).

5. A fire sprinkler head structure for ease of cleaning according to claim 1, wherein: The water pipe (1) is provided with handles (17) on the front and back sides of the bottom of the outer wall. The handles (17) are threaded with screws (18) on the left and right sides of the outer wall. The handles (17) are threaded to the water pipe (1) through the screws (18).

6. A fire sprinkler head structure for ease of cleaning according to claim 1, wherein: The water pipe (1) has a positioning frame (15) connected to the middle of its front side, and an observation window (16) is fixedly connected to the inner side of the positioning frame (15).

7. A fire sprinkler head structure for ease of cleaning according to claim 1, wherein: The front and rear sides of the outer wall of the connecting frame (4) are fixedly connected with brackets (24), and the top of the brackets (24) is fixedly connected to the water pipe (1).

8. A fire sprinkler head structure for ease of cleaning according to claim 2, wherein: The observation cover (201) has knobs (21) rotatably connected to both the left and right sides of its outer wall. The knobs (21) pass through the observation cover (201) and are fixedly connected to the threaded rod (203).