High-altitude fire-fighting spray manifold filter
By designing a high-altitude fire sprinkler manifold filter, the problem of fire sprinkler head blockage is solved by using a filter plate and a reset spring structure, thus achieving stable operation and sealing of the fire protection system and preventing impurities from entering the nozzles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2026-04-14
AI Technical Summary
The problem of fire sprinkler heads clogging in fire sprinkler systems affects firefighting efforts.
A high-altitude fire sprinkler manifold filter was designed, including a connector, an outer filter cylinder, an inner filter cylinder, a return spring, and a hydraulic plate. The filter plate intercepts impurities, and the return spring and guide key block structure prevent misalignment, ensuring filtration effect and sealing performance.
It effectively prevents fire sprinkler head blockage, ensures the normal operation of the fire protection system, and is stable, reliable, and has a good sealing effect.
Smart Images

Figure CN121846750A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of filter technology, specifically a high-altitude fire sprinkler manifold filter. Background Technology
[0002] A fire sprinkler system is a widely used fixed fire-fighting facility characterized by its low cost and high extinguishing efficiency. Depending on its function, it can be divided into manual and automatic control types. The system is equipped with an alarm device that automatically sounds an alarm in the event of a fire. Automatic fire sprinkler systems can also automatically spray water and work in sync with other fire-fighting facilities, thus effectively controlling and extinguishing initial fires. They play a crucial role in fire control. In fire sprinkler systems, water is sprayed through nozzles. To ensure water pressure, the nozzles are usually designed with fine orifices. However, over time, impurities in the water can accumulate at the nozzles, causing blockages and hindering fire-fighting operations. Summary of the Invention
[0003] This invention provides a high-altitude fire sprinkler manifold filter that overcomes the shortcomings of the prior art and can effectively solve the problem of easy clogging of fire sprinkler heads in existing fire sprinkler systems.
[0004] The technical solution of the present invention is achieved through the following measures: A high-altitude fire sprinkler manifold filter includes a connector, an outer filter cylinder, an inner filter cylinder, a return spring, and a hydraulic plate. A connector with its left end located to the left is fixedly installed on the inner side of the left end of the outer filter cylinder. A limiting ring platform is provided on the inner side of the right end of the outer filter cylinder. A filter inner cylinder is provided on the inner side of the left part of the outer filter cylinder corresponding to the position between the connector and the limiting ring platform. An installation ring groove is provided on the outer side of the right end of the inner filter cylinder. A return spring with its right end located to the right of the inner filter cylinder is installed in the installation ring groove. The right end of the return spring abuts against the left side of the limiting ring platform. A hydraulic plate is fixedly installed on the inner side of the left end of the inner filter cylinder. A filter plate with a left-high and right-low orientation is provided on the inner side of the left part of the inner filter cylinder. A supporting inclined ring platform is provided on the inner side of the inner filter cylinder corresponding to the right side of the filter plate. The filter plate and the supporting inclined ring platform are fixedly installed together. A drain hole is provided on the lower side of the inner filter cylinder corresponding to the lower left position of the filter plate. A drain hole is provided on the lower side of the outer filter cylinder corresponding to the position of the drain hole.
[0005] The following are further optimizations and / or improvements to the above-mentioned technical solution: The filter plate can be provided with several filter hole groups at intervals, each group of filter holes including several filter holes arranged at intervals and distributed in an arc shape.
[0006] The aforementioned filter plate can be tilted at an angle between itself and the horizontal plane, with the tilt angle ranging from 50° to 70°.
[0007] The tilt angle mentioned above can be 60°.
[0008] The aforementioned hydraulic plate may include an installation ring, connecting ribs, and a distribution plate. An installation ring is fixedly installed on the inner side of the left end of the filter inner cylinder. A distribution plate is provided inside the installation ring. At least two connecting ribs are fixedly installed between the outer side of the distribution plate and the inner side of the installation ring.
[0009] The above may also include guide key blocks. At least one guide key block is provided on the outer side of the filter inner cylinder at circumferential intervals corresponding to the position on the left side of the mounting ring groove. A guide key groove is provided on the inner side of the filter outer cylinder corresponding to the position of each guide key block. The right end of the guide key groove is located on the right side of the filter inner cylinder.
[0010] The left end of the aforementioned connector can be fixedly installed together with the fire sprinkler manifold, and the outer side of the right end of the connector is fixedly installed together with the inner side of the left end of the filter outer cylinder through a threaded connection. The right end of the filter outer cylinder can be fixedly installed together with the fire nozzle. The hydraulic plate is fixedly installed on the inner side of the left end of the filter inner cylinder through a threaded connection, and the filter plate is fixedly installed on the left side of the support inclined ring platform through a bolt connection.
[0011] This invention features a reasonable and compact structure, and is easy to use. By incorporating a filter plate, impurities are intercepted within the inner filter cylinder. A hydraulic plate reduces the flow area of the fluid within the inner filter cylinder, facilitating its movement to the right under fluid impact. A reset spring allows the inner filter cylinder to move to the left, enabling communication between the inner and outer drain holes. Guide blocks and keyways prevent circumferential rotation of the inner and outer filter cylinders, thus avoiding circumferential misalignment between the inner and outer drain holes. This invention offers stability, reliability, and excellent sealing. Attached Figure Description
[0012] Appendix Figure 1 These are schematic diagrams of the main cross-sectional structure of embodiments 1 to 7 of the present invention.
[0013] Appendix Figure 2 For the appendix Figure 1 A three-dimensional structural diagram of the outer cylinder of the middle filter.
[0014] Appendix Figure 3 For the appendix Figure 1 A three-dimensional structural diagram of the inner filter cylinder.
[0015] Appendix Figure 4 For the appendix Figure 1 A three-dimensional structural diagram of the filter plate.
[0016] Appendix Figure 5 For the appendix Figure 1 A three-dimensional structural diagram of the hydraulic plate.
[0017] The codes in the attached diagram are as follows: 1 is the connector, 2 is the outer filter cylinder, 3 is the inner filter cylinder, 4 is the return spring, 5 is the mounting ring, 6 is the connecting rib, 7 is the distribution plate, 8 is the guide key block, 9 is the guide keyway, 10 is the filter hole, 11 is the limiting ring platform, 12 is the mounting ring groove, 13 is the supporting inclined ring platform, 14 is the inner drain hole, 15 is the outer drain hole, 16 is the filter plate, and α is the tilt angle. Detailed Implementation
[0018] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.
[0019] In this invention, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.
[0020] The present invention will be further described below with reference to embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2As shown in Figures 3, 4, and 5, the high-altitude fire sprinkler manifold filter includes a connector 1, an outer filter cylinder 2, an inner filter cylinder 3, a return spring 4, and a hydraulic plate. The connector 1, with its left end located to the left, is fixedly installed on the inner side of the left end of the outer filter cylinder 2. A limiting ring platform 11 is provided on the inner side of the right end of the outer filter cylinder 2. The inner filter cylinder 3 is located on the inner side of the left part of the outer filter cylinder 2, corresponding to the position between the connector 1 and the limiting ring platform 11. An installation ring groove 12 is provided on the outer side of the right end of the inner filter cylinder 3. A return spring, with its right end located to the right of the inner filter cylinder 3, is installed in the installation ring groove 12. Spring 4, the right end of the return spring 4 abuts against the left side of the limiting ring platform 11; a hydraulic plate is fixedly installed on the inner side of the left end of the filter inner cylinder 3, and a filter plate 16 with a left-high and right-low orientation is provided on the inner side of the left part of the filter inner cylinder 3. A supporting inclined ring platform 13 is provided on the inner side of the filter inner cylinder 3 corresponding to the right side of the filter plate 16. The filter plate 16 and the supporting inclined ring platform 13 are fixedly installed together. A sewage discharge inner hole 14 is provided on the lower side of the filter inner cylinder 3 corresponding to the lower left position of the filter plate 16. A sewage discharge outer hole 15 is provided on the lower side of the filter outer cylinder 2 corresponding to the position of the sewage discharge inner hole 14. During use, the left end of connector 1 is connected to the existing fire sprinkler manifold, and the right end of filter outer cylinder 2 is connected to the existing fire nozzle. When the fluid enters the filter outer cylinder 2 from the fire sprinkler manifold, the fluid impact force pushes the hydraulic plate and filter inner cylinder 3 and exerts pressure on the return spring 4, causing the filter inner cylinder 3 to move to the right relative to the filter outer cylinder 2. This causes the drain inner hole 14 and drain outer hole 15 to be misaligned. Solid particles in the fluid, rust and other impurities caused by pipe corrosion are intercepted by the filter plate 16 in the filter inner cylinder 3, thereby purifying or filtering the fluid and preventing impurities from flowing out from the right end of the filter outer cylinder 2 into the fire nozzle and blocking it. After the fire sprinkler manifold is closed, the filter inner cylinder 3 moves to the left under the action of the return spring 4 until the left end of the filter inner cylinder 3 abuts against the right end of connector 1. At this time, the drain inner hole 14 and drain outer hole 15 are connected, and the impurities intercepted by the filter plate 16 are discharged from the filter inner cylinder 3.
[0021] The above-mentioned high-altitude fire sprinkler manifold filter can be further optimized and / or improved according to actual needs: Example 2: As shown in the attached document Figure 1 , 4 As shown, the filter plate 16 has several sets of filter holes 10 spaced vertically, and each set of filter holes 10 includes several filter holes 10 spaced back-to-back and distributed in an arc shape. This arrangement allows for better filtration during use. The mesh size of the filter plate 16 is configured according to process requirements.
[0022] Example 3: As shown in the attached document Figure 1As shown, the angle between the filter plate 16 and the horizontal plane is an inclination angle α, which is between 50° and 70°. During use, this setting satisfies the need for better filtration and facilitates the discharge of impurities intercepted by the filter plate 16 from the inner filter cylinder 3 through the open drain hole 14 and the drain hole 15.
[0023] Example 4: As shown in the appendix Figure 1 As shown, the tilt angle α is 60°. This setting allows for better filtration during use.
[0024] Example 5: As shown in the attached document Figure 1 , 5 As shown, the hydraulic plate includes a mounting ring 5, connecting ribs 6, and a distribution plate 7. The mounting ring 5 is fixedly installed on the inner left side of the filter inner cylinder 3. The distribution plate 7 is located inside the mounting ring 5, and at least two connecting ribs 6 are fixedly installed between the outer side of the distribution plate 7 and the inner side of the mounting ring 5. During use, this design reduces the flow area of the fluid inside the filter inner cylinder 3, thus facilitating the movement of the filter inner cylinder 3 to the right under fluid impact.
[0025] Example 6: As shown in the appendix Figure 1 , 2 As shown in Figure 3, the filter also includes guide key blocks 8. At least one guide key block 8 is provided circumferentially at intervals on the outer side of the filter inner cylinder 3 corresponding to the position to the left of the mounting annular groove 12. A guide keyway 9 is provided on the inner side of the filter outer cylinder 2 corresponding to each guide key block 8 position, with the right end of the guide keyway 9 located to the right of the filter inner cylinder 3. During use, the guide key blocks 8 and guide keyways 9 prevent circumferential rotation of the filter inner cylinder 3 and the filter outer cylinder 2, thereby avoiding circumferential misalignment between the drain inner hole 14 and the drain outer hole 15.
[0026] Example 7: As attached Figure 1 As shown, the left end of connector 1 can be fixedly installed with the fire sprinkler manifold, and the outer right end of connector 1 is fixedly installed with the inner left end of the outer filter cylinder 2 via a threaded connection. The right end of the outer filter cylinder 2 can be fixedly installed with the fire nozzle. The hydraulic plate is fixedly installed with the inner left end of the inner filter cylinder 3 via a threaded connection, and the filter plate 16 is fixedly installed with bolts on the left side of the supporting inclined ring platform 13. This arrangement facilitates the assembly and disassembly of the various components during use.
[0027] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.
Claims
1. A high-altitude fire sprinkler manifold filter, characterized in that... The filter includes a connector, an outer filter cylinder, an inner filter cylinder, a return spring, and a hydraulic plate. A connector is fixedly installed on the inner left side of the outer filter cylinder, with its left end to the left of the outer filter cylinder. A limiting ring is located on the inner right side of the outer filter cylinder. The inner filter cylinder is located on the inner left side of the outer filter cylinder, corresponding to the position between the connector and the limiting ring. An installation ring groove is located on the outer right side of the inner filter cylinder, and a return spring with its right end to the right of the inner filter cylinder is installed in the installation ring groove. The right end of the return spring abuts against the left side of the limiting ring. A hydraulic plate is fixedly installed on the inner left side of the inner filter cylinder. A filter plate with a left-high, right-low orientation is located on the inner left side of the inner filter cylinder. A supporting inclined ring is located on the inner side of the inner filter cylinder, corresponding to the right side of the filter plate. The filter plate and the supporting inclined ring are fixedly installed together. A drain hole is located on the lower left side of the inner filter cylinder, corresponding to the position of the drain hole. A drain outlet is located on the lower side of the outer filter cylinder, corresponding to the position of the drain hole.
2. The high-altitude fire sprinkler manifold filter according to claim 1, characterized in that... The filter plate has several filter hole groups spaced vertically, and each filter hole group includes several filter holes arranged in an arc shape with front and back spacing.
3. The high-altitude fire sprinkler manifold filter according to claim 1 or 2, characterized in that... The angle between the filter plate and the horizontal plane is an inclination angle, which is between 50° and 70°.
4. The high-altitude fire sprinkler manifold filter according to claim 3, characterized in that... The tilt angle is 60°.
5. The high-altitude fire sprinkler manifold filter according to claim 1, 2, or 4, characterized in that... The hydraulic plate includes a mounting ring, connecting ribs, and a distribution plate. The mounting ring is fixedly installed on the inner side of the left end of the filter inner cylinder. The distribution plate is provided inside the mounting ring. At least two connecting ribs are fixedly installed between the outer side of the distribution plate and the inner side of the mounting ring.
6. The high-altitude fire sprinkler manifold filter according to claim 3, characterized in that... The hydraulic plate includes a mounting ring, connecting ribs, and a distribution plate. The mounting ring is fixedly installed on the inner side of the left end of the filter inner cylinder. The distribution plate is provided inside the mounting ring. At least two connecting ribs are fixedly installed between the outer side of the distribution plate and the inner side of the mounting ring.
7. The high-altitude fire sprinkler manifold filter according to claim 1, 2, 4, or 6, characterized in that... It also includes guide key blocks. At least one guide key block is provided on the outer side of the filter inner cylinder at circumferential intervals corresponding to the position on the left side of the mounting ring groove. A guide key groove is provided on the inner side of the filter outer cylinder corresponding to the position of each guide key block. The right end of the guide key groove is located on the right side of the filter inner cylinder.
8. The high-altitude fire sprinkler manifold filter according to claim 3, characterized in that... It also includes guide key blocks. At least one guide key block is provided on the outer side of the filter inner cylinder at circumferential intervals corresponding to the position on the left side of the mounting ring groove. A guide key groove is provided on the inner side of the filter outer cylinder corresponding to the position of each guide key block. The right end of the guide key groove is located on the right side of the filter inner cylinder.
9. The high-altitude fire sprinkler manifold filter according to claim 5, characterized in that... It also includes guide key blocks. At least one guide key block is provided on the outer side of the filter inner cylinder at circumferential intervals corresponding to the position on the left side of the mounting ring groove. A guide key groove is provided on the inner side of the filter outer cylinder corresponding to the position of each guide key block. The right end of the guide key groove is located on the right side of the filter inner cylinder.
10. The high-altitude fire sprinkler manifold filter according to claim 1, 2, 4, 6, 8, or 9, characterized in that... The left end of the connector can be fixedly installed with the fire sprinkler manifold, and the outer side of the right end of the connector is fixedly installed with the inner side of the left end of the filter outer cylinder through a threaded connection. The right end of the filter outer cylinder can be fixedly installed with the fire nozzle. The hydraulic plate is fixedly installed with the inner side of the left end of the filter inner cylinder through a threaded connection, and the filter plate is fixedly installed with the left side of the supporting inclined ring platform through bolt connection.