Anti-blocking auxiliary equipment for fire extinguishing device pipeline

By using anti-clogging and pressure-reducing components, the problem of filter and pipe blockage in fire extinguishing devices is solved, ensuring smooth flow of extinguishing agent and improving the operating efficiency and safety of the device.

CN224236172UActive Publication Date: 2026-05-15ANHUI LIANDA SAFETY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI LIANDA SAFETY TECH CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing fire extinguishing systems, filters and pipes are prone to clogging, which leads to poor flow of extinguishing agents, increases maintenance costs and safety hazards, and improper pressure control may cause system damage.

Method used

The design incorporates anti-clogging and pressure-reducing components. The anti-clogging component uses a motor-driven gear to drive a scraper to clean impurities from the filter screen and the inner wall of the pipe. The pressure-reducing component uses an elastic loading component to regulate the pipe pressure and prevent overload.

Benefits of technology

It effectively prevents filter and pipe blockage, ensures smooth flow of extinguishing agent, improves operational efficiency and reliability, and provides additional safety assurance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses anti-blocking auxiliary equipment for a fire extinguishing device pipeline, which comprises a filter and a pipeline, and a filter screen is fixedly arranged on one side of the filter; the anti-blocking assembly comprises a shell installed between the pipeline and the filter. The gear is driven by the motor to rotate, the gear ring and the gear are in meshed transmission connection, so that the motor drives the arc-shaped scrapers on the two sides to rotate synchronously through the gear ring after being driven, the cleaning brush is fixed at the end of the arc-shaped scraper close to one side of a filter screen of the filter and can be tightly attached to the surface of the filter screen, and the cleaning brush can clean the surface of the filter screen along with rotation of the scrapers. Meanwhile, the inner wall of a pipeline connected in the filter can be cleaned, the cleaning brush continuously brushes away impurities on the filter screen to prevent the filter screen from being blocked, and the arc-shaped scraping plate on the other side is attached to the inner wall of the pipeline and scrapes away sediments on the pipe wall along with rotation, so that the pipe wall is prevented from being blocked, smooth flowing of a fire extinguishing agent is ensured, and the fire extinguishing effect is improved. And the operation efficiency and reliability of the fire extinguishing device are improved.
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Description

Technical Field

[0001] This utility model relates to the field of fire protection equipment technology, and in particular to an auxiliary device for preventing blockage in the pipeline of a fire extinguishing device. Background Technology

[0002] A fire extinguishing system is a specialized device for suppressing fires. It inhibits combustion by spraying extinguishing agents (such as water, foam, dry powder, or gas), lowers the temperature of the fire, and isolates the air, thereby effectively controlling and extinguishing the fire source and protecting lives and property. This system typically includes components such as a storage tank, pump, valves, nozzles, and piping, and can be equipped with automatic detection, alarm, and control systems as needed to achieve rapid, accurate, and efficient fire suppression operations.

[0003] In existing fire extinguishing systems, filters are typically installed on pipelines to remove impurities and ensure the cleanliness of the extinguishing agent and the normal operation of the system. However, this design has revealed several problems in practical applications: First, after prolonged use, the filters, lacking an effective cleaning structure, easily absorb and accumulate large amounts of impurities, leading to filter blockage, which in turn affects the filtration effect and increases the pressure within the pipeline. Second, the pipes connected to the filters are also prone to absorbing impurities, and the deposits on the pipe walls gradually accumulate over time, forming a stubborn blockage layer that severely hinders the smooth flow of the extinguishing agent and may even cause the entire fire extinguishing system to fail. Furthermore, during the delivery of extinguishing materials, improper pressure control or overload operation can cause pressure overload in the pipeline, further exacerbating the risk of blockage and potentially damaging the pipeline system, increasing maintenance costs and safety hazards. Utility Model Content

[0004] One objective of this invention is to provide an auxiliary device for preventing blockage in fire extinguishing system pipelines. This invention addresses the issues raised in the background where filters, after prolonged use, lack an effective filter cleaning structure, leading to the easy adsorption and accumulation of impurities on the internal filter screen, resulting in filter blockage, which in turn affects filtration efficiency and increases pipeline pressure. Secondly, the pipes connecting to the filter are also prone to adsorbing impurities; deposits on the pipe walls gradually accumulate over time, forming a stubborn blockage layer that severely hinders the smooth flow of extinguishing agent and may even cause the entire fire extinguishing system to fail. Furthermore, during the delivery of extinguishing materials, improper pressure control or overload operation can cause pressure overload in the pipeline, further exacerbating the risk of blockage and potentially damaging the pipeline system, increasing maintenance costs and safety hazards.

[0005] A fire extinguishing device pipeline anti-clogging auxiliary device according to an embodiment of the present utility model includes:

[0006] Filter and pipe, wherein a filter screen is fixedly installed on one side of the filter;

[0007] The anti-clogging component includes a housing installed between a pipe and a filter. The housing is rotatably provided with a toothed ring. A gear is meshed with the outer side of the toothed ring. The gear is fixedly installed at the output end of a motor. Arc-shaped scrapers are symmetrically fixed at both ends inside the toothed ring. A cleaning brush is fixedly installed at the end of the arc-shaped scraper near the filter.

[0008] The pressure-reducing assembly includes a delivery pipe installed at the other end of a pipeline via a flange, a pressure-reducing chamber bolted to the top of the delivery pipe, an elastic loading assembly for pressure release installed inside the pressure-reducing chamber, and an adjustment assembly for manual pressure release installed on the outside of the delivery pipe.

[0009] Preferably, the filter, pipe and housing are connected by a flange.

[0010] Preferably, the swivel ring is fixedly disposed on both sides of the toothed ring.

[0011] Preferably, the arc-shaped scrapers at both ends are arranged perpendicularly in the X and Y directions, and the arc-shaped scraper on the right side is attached to the inner wall of the pipe.

[0012] Preferably, the cleaning brush is attached to the surface of the filter screen.

[0013] Preferably, the motor is fixedly mounted on the outside of the housing.

[0014] Preferably, the elastic loading component includes a spring, a backflush plate is fixedly disposed at the bottom of the spring, a push rod is fixedly disposed at the bottom of the backflush plate and movably connected inside the delivery pipe, and a valve body for sealing the delivery pipe is fixedly disposed at the bottom of the push rod.

[0015] Preferably, the adjusting assembly includes an adjusting chamber located inside the conveying pipe, a plug is movably disposed at the upper end of the adjusting chamber, and a hand-tightening component with a threaded connection located inside the conveying pipe is rotatably disposed at the top of the plug.

[0016] The beneficial effects of this utility model are:

[0017] This invention effectively avoids clogging caused by the accumulation of impurities on the filter screen and the inner wall of the pipe through the anti-clogging component. During fire extinguishing, the gear rotates under the drive of the motor. Since the gear ring and the gear are meshed, the motor drives the arc-shaped scrapers on both sides to rotate synchronously through the gear ring. The end of the arc-shaped scraper near the filter screen is fixed with a cleaning brush, which can closely adhere to the surface of the filter screen. As the scraper rotates, it can also clean the inner wall of the pipe connected in the filter. The cleaning brush continuously removes impurities on the filter screen to prevent clogging. On the other hand, the arc-shaped scraper adheres to the inner wall of the pipe and scrapes off the deposits on the pipe wall as it rotates, preventing pipe wall blockage. This ensures the smooth flow of the extinguishing agent and improves the operating efficiency and reliability of the fire extinguishing device.

[0018] This invention effectively avoids the risk of blockage caused by improper pressure control or overload operation through the pressure-reducing component. By installing a delivery pipe and a pressure-reducing chamber at the other end of the pipeline, and setting an elastic loading component inside the pressure-reducing chamber, effective monitoring and regulation of the pipeline pressure are achieved. When the pipeline pressure exceeds the set value, the spring in the elastic loading component is compressed, pushing the backflushing plate and push rod upward, causing the valve to open the delivery port of the delivery pipe, thereby releasing the excessive pressure and preventing pipeline overload. In addition, the hand-tightening component in the adjustment component allows manual adjustment of the plug position, enabling manual pressure release and providing additional safety assurance, ensuring the stable operation of the fire extinguishing device under high pressure. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a three-dimensional structural diagram of one side of the anti-blocking auxiliary equipment for the fire extinguishing device pipeline proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the shell structure of an auxiliary device for preventing pipe blockage in a fire extinguishing system, as proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the explosion structure of the anti-blocking component of the fire extinguishing device pipeline anti-blocking auxiliary equipment proposed in this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of a pressure-reducing component for an auxiliary device for preventing blockage in the pipeline of a fire extinguishing system, as proposed in this utility model.

[0024] In the diagram: 1. Filter; 2. Pipe; 3. Filter screen; 4. Anti-clogging component; 401. Housing; 402. Gear ring; 403. Rotary ring; 404. Arc-shaped scraper; 405. Cleaning brush; 406. Gear; 407. Motor; 5. Flange; 6. Pressure reducing component; 601. Delivery pipe; 602. Pressure reducing chamber; 603. Spring; 604. Backflush disc; 605. Push rod; 606. Valve body; 607. Adjustment chamber; 608. Plug; 609. Hand-tightening component. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] refer to Figure 1-4 A fire extinguishing system pipeline anti-clogging auxiliary device, comprising:

[0027] Filter 1 and pipe 2, with filter screen 3 fixedly installed on one side of filter 1;

[0028] The anti-clogging component 4 includes a housing 401 installed between the pipe 2 and the filter 1. A gear ring 402 is rotatably mounted on the housing 401 via a rotating ring 403. A gear 406 meshes with the outer side of the gear ring 402. The gear 406 is fixedly mounted at the output end of the motor 407. Arc-shaped scrapers 404 are symmetrically fixed at both ends inside the gear ring 402. A cleaning brush 405 is fixedly mounted at the end of the arc-shaped scraper 404 near the filter 1. During fire extinguishing, the gear rotates under the drive of the motor. Because the gear ring and the gear are meshed... The transmission is integrated, so after the motor drives it, it will drive the arc-shaped scrapers on both sides to rotate synchronously through the gear ring. The end of the arc-shaped scraper near the filter screen is fixed with a cleaning brush, which can closely adhere to the surface of the filter screen. As the scraper rotates, it can also clean the inner wall of the pipe connected in the filter. The cleaning brush continuously removes impurities from the filter screen to prevent the filter screen from clogging. Meanwhile, the arc-shaped scraper on the other side adheres to the inner wall of the pipe and scrapes off the deposits on the pipe wall as it rotates, avoiding pipe wall blockage and thus ensuring the smooth flow of the extinguishing agent.

[0029] The pressure-reducing assembly 6 includes a delivery pipe 601 installed at the other end of the pipeline 2 via a flange 5. A pressure-reducing chamber 602 is bolted to the top of the delivery pipe 601. An elastic loading assembly for pressure release is installed inside the pressure-reducing chamber 602. The elastic loading assembly includes a spring 603, a backflushing plate 604 fixedly mounted at the bottom of the spring 603, and a push rod 605 movably connected inside the delivery pipe 601 fixedly mounted at the bottom of the backflushing plate 604. A valve body 606 for sealing the delivery pipe 601 is fixedly mounted at the bottom of the push rod 605. A manual pressure-releasing adjustment assembly is installed on the outside of the delivery pipe 601. By installing the delivery pipe and pressure-reducing chamber at the other end of the pipeline, and by reducing pressure... An elastic loading component is installed inside the chamber to effectively monitor and regulate the pressure inside the pipeline. When the pressure inside the pipeline exceeds the set value, the spring in the elastic loading component is compressed, pushing the recoil plate and push rod upward, causing the valve to open the delivery port of the delivery pipe, thereby releasing the excessive pressure and preventing pipeline overload. The regulating component includes an regulating chamber 607 located inside the delivery pipe 601. A plug 608 is movably installed at the upper end of the regulating chamber 607. A hand-tightening component 609 with a threaded connection inside the delivery pipe 601 is rotatably installed on the top of the plug 608. The hand-tightening component in the regulating component can manually adjust the position of the plug to manually release the pressure, providing additional safety assurance.

[0030] Example 1: The filter 1, pipe 2 and housing 401 are connected by flange 5. The filter and pressure reducing assembly are connected by flange, which can be easily disassembled and maintained. The rotating ring 403 is fixed on both sides of the toothed ring 402, so that the toothed ring can rotate stably inside the housing.

[0031] Example 2: The arc-shaped scrapers 404 at both ends are vertically arranged in the X and Y directions. The arc-shaped scraper 404 on the right side is attached to the inner wall of the pipe 2, which can effectively improve the cleaning effect on the inner wall of the pipe. The cleaning brush 405 is attached to the surface of the filter screen 3, which can clean the impurities adsorbed on the filter screen. The motor 407 is fixedly set on the outside of the housing 401.

[0032] Working principle: During fire extinguishing, the anti-clogging component 4 drives the gear 406 to rotate via the motor 407. Due to the meshing transmission between the gear 406 and the gear ring 402, the gear ring 402 rotates within the housing 401 via the rotating ring 403, causing the arc-shaped scrapers 404 on both sides to rotate synchronously. A cleaning brush 405 is fixed to the end of the arc-shaped scraper 404 near the filter 1. The cleaning brush 405 closely adheres to the surface of the filter screen 3. As the scraper rotates, the cleaning brush 405 continuously removes impurities from the filter screen 3, preventing clogging. The other arc-shaped scraper 404 adheres to the inner wall of the pipe 2, scraping away deposits on the pipe wall as it rotates, preventing clogging and ensuring smooth flow of the extinguishing agent. Furthermore, the pressure-reducing component 6 is installed at the other end of the pipe 2 via the flange 5. The pressure-reducing chamber 602 contains an elastic loading component, including a spring 603, a backwash plate 604, a push rod 605, and a valve. When the pressure inside the pipeline exceeds the set value, the pressure acts on the backwash plate 604, compressing the spring 603 and pushing the push rod 605 and the valve body 606 upward, opening the delivery port of the delivery pipe 601, releasing the excessive pressure, and preventing pipeline overload. The hand-tightening part 609 in the adjustment assembly can manually adjust the position of the plug 608 to achieve manual pressure release and provide additional safety. The filter 1, pipeline 2 and housing 401 are connected by flange 5 for easy disassembly and maintenance. The rotating ring 403 is fixedly set on both sides of the toothed ring 402 to ensure stable rotation of the toothed ring 402. The arc-shaped scrapers 404 at both ends are set vertically in the X and Y directions. The arc-shaped scraper 404 on the right side is attached to the inner wall of the pipeline 2 to improve the cleaning effect. The cleaning brush 405 is attached to the surface of the filter screen 3 to effectively clean the impurities on the filter screen. The motor 407 is fixedly set on the outside of the housing 401 to ensure stable operation.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for preventing blockage in fire extinguishing equipment pipelines, characterized in that, include: A filter (1) and a pipe (2), wherein a filter screen (3) is fixedly installed on one side of the filter (1); The anti-clogging component (4) includes a housing (401) installed between the pipe (2) and the filter (1). The housing (401) is rotatably provided with a toothed ring (402) via a rotating ring (403). A gear (406) is meshed on the outside of the toothed ring (402). The gear (406) is fixedly installed at the output end of the motor (407). Arc-shaped scrapers (404) are symmetrically fixed at both ends inside the toothed ring (402). A cleaning brush (405) is fixedly installed at the end of the arc-shaped scraper (404) near the filter (1). The pressure-reducing assembly (6) includes a delivery pipe (601) installed at the other end of the pipe (2) via a flange (5), a pressure-reducing chamber (602) is bolted to the top of the delivery pipe (601), an elastic loading assembly for pressure release is installed inside the pressure-reducing chamber (602), and an adjustment assembly for manual pressure release is installed on the outside of the delivery pipe (601).

2. The fire extinguishing device pipeline anti-blocking auxiliary equipment according to claim 1, characterized in that, The filter (1), pipe (2) and housing (401) are connected by a flange (5).

3. The fire extinguishing device pipeline anti-blocking auxiliary equipment according to claim 1, characterized in that, The rotating ring (403) is fixedly disposed on both sides of the toothed ring (402).

4. The fire extinguishing device pipeline anti-blocking auxiliary equipment according to claim 1, characterized in that, The arc-shaped scrapers (404) at both ends are vertically arranged in the X and Y directions, and the arc-shaped scraper (404) on the right side is attached to the inner wall of the pipe (2).

5. The fire extinguishing device pipeline anti-blocking auxiliary equipment according to claim 1, characterized in that, The cleaning brush (405) is attached to the surface of the filter screen (3).

6. The fire extinguishing device pipeline anti-blocking auxiliary equipment according to claim 1, characterized in that, The motor (407) is fixedly mounted on the outside of the housing (401).

7. The fire extinguishing device pipeline anti-clogging auxiliary equipment according to claim 1, characterized in that, The elastic loading assembly includes a spring (603), a backflush plate (604) is fixedly disposed at the bottom of the spring (603), a push rod (605) is fixedly disposed at the bottom of the backflush plate (604) and movably connected inside the delivery pipe (601), and a valve body (606) for sealing the delivery pipe (601) is fixedly disposed at the bottom of the push rod (605).

8. The fire extinguishing device pipeline anti-blocking auxiliary equipment according to claim 1, characterized in that, The regulating assembly includes an regulating chamber (607) located inside the conveying pipe (601), and a plug (608) is movably provided at the upper end of the regulating chamber (607). A hand-tightening component (609) with a threaded connection located inside the conveying pipe (601) is rotatably provided at the top of the plug (608).