Suspension type superfine dry powder automatic fire extinguishing device
By combining a rotating mechanism with a temperature-sensing glass bulb nozzle assembly, the problem of low extinguishing efficiency caused by fixed nozzles in suspended ultra-fine dry powder fire extinguishers is solved, achieving a wider range and faster extinguishing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI YUTAI FIRE TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-15
AI Technical Summary
The nozzles of existing suspended ultra-fine dry powder fire extinguishers are fixed, which means they can only spray towards one end. They cannot be extinguished properly when the fire is far away from the fire source, thus reducing the fire extinguishing efficiency.
A suspended ultrafine dry powder automatic fire extinguishing device was designed. Through the combination of a rotating mechanism and a temperature-sensing glass bulb nozzle assembly, the impeller and conical teeth are driven by the internal pressure of the cylinder to rotate the nozzle and expand the spray range.
It increases the spray range and distance of dry powder, enhances the speed and effectiveness of extinguishing fire sources, and avoids the reduced fire extinguishing effect caused by fixed spraying.
Smart Images

Figure CN224235968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of powder fire extinguisher technology, specifically a suspended ultrafine dry powder automatic fire extinguishing device. Background Technology
[0002] Suspended ultrafine dry powder fire extinguishers are a type of efficient and automated fire extinguishing equipment. They are installed in a suspended manner and use ultrafine dry powder extinguishing agent to quickly extinguish initial fires. They are suitable for fire protection in various locations.
[0003] The nozzles of existing suspended ultra-fine dry powder fire extinguishers are usually designed to be fixed. As a result, when the suspended ultra-fine dry powder fire extinguisher is triggered, it can only spray towards one end, which affects the fire extinguishing effect and prevents the fire at the far end from being extinguished properly, thus reducing the efficiency of the suspended ultra-fine dry powder fire extinguisher. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a suspended ultrafine dry powder automatic fire extinguishing device, which solves the technical problem that the fire can only be sprayed towards one end, thus affecting the fire extinguishing effect and preventing the fire at the far end from being extinguished properly, thereby reducing the efficiency of the suspended ultrafine dry powder fire extinguisher.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a suspended ultrafine dry powder automatic fire extinguishing device, comprising: a cylinder and a temperature-sensing glass bulb nozzle assembly, wherein the temperature-sensing glass bulb nozzle assembly is mounted directly below the cylinder, the bottom of the cylinder is connected to a hollow tube, the inner cavity of the hollow tube is equipped with a rotating mechanism, the rotating mechanism includes an impeller, the back of the impeller is connected to a horizontal shaft, the back of the horizontal shaft is connected to a second conical tooth, the bottom of the hollow tube is connected to a hollow column, the inner cavity of the hollow column is equipped with a spherical bearing, the inner cavity of the spherical bearing is connected to the outside of the temperature-sensing glass bulb nozzle assembly, the outside of the temperature-sensing glass bulb nozzle assembly is sleeved with a first conical tooth, the first conical tooth and the second conical tooth meshing and connecting, and nozzles are connected to both sides of the bottom of the temperature-sensing glass bulb nozzle assembly.
[0008] Preferably, a pressure indicator is fitted to the outside of the hollow column, and a protective cover is fitted to the outside of the pressure indicator, so that the pressure indicator can facilitate the staff to view the pressure data inside the device.
[0009] Preferably, the hollow tube has secondary tubes connected to both outer sides, the two secondary tubes are staggered, and the two secondary tubes are respectively connected to the hollow column and the cylinder, which facilitates the flow of pressure and dry powder.
[0010] Preferably, the impeller is evenly distributed with fan blades on its outer surface, and the fan blades are located directly below the top secondary tube of the hollow tube, and the fan blades can be driven by the flowing rice.
[0011] Preferably, a sealed bearing is sleeved on the outside of the horizontal shaft, and the sealed bearing is connected to the hollow tube. The sealed bearing improves the sealing performance between the horizontal shaft and the hollow tube.
[0012] Preferably, the top of the cylinder is equipped with a lifting ring, and the outside of the lifting ring is fitted with an anti-slip pad, so that the cylinder can be suspended easily.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, this utility model provides a suspended ultrafine dry powder automatic fire extinguishing device, which has the following beneficial effects:
[0015] This suspended ultra-fine dry powder automatic fire extinguishing device increases the spray pressure of the nozzles on both sides of the bottom of the heat-sensing glass bulb nozzle assembly by reducing the number of nozzles at the bottom of the assembly. This increases the spray range and distance of the dry powder, thereby improving the speed and effectiveness of extinguishing the fire. At the same time, the pressure inside the cylinder drives the impeller and the second conical tooth to rotate the first conical tooth and the heat-sensing glass bulb nozzle assembly, thus increasing the spray range of the assembly and preventing the dry powder from being sprayed when the assembly is stationary, which would reduce the extinguishing effect on the fire. Attached Figure Description
[0016] Figure 1 This is a front view of the present utility model;
[0017] Figure 2 This is a partial sectional view of the hollow column of this utility model;
[0018] Figure 3 This is a partial cross-sectional view of the hollow tube of this utility model.
[0019] In the diagram: 1. Cylinder; 11. Lifting ring; 2. Hollow tube; 21. Secondary tube; 3. Hollow column; 31. Spherical bearing; 32. First conical tooth; 4. Temperature-sensing glass bulb nozzle assembly; 41. Pressure indicator; 5. Rotating mechanism; 51. Impeller; 52. Second conical tooth; 53. Horizontal shaft. Detailed Implementation
[0020] 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.
[0021] This utility model provides a technical solution, please refer to Figure 1 , Figure 2 and Figure 3 A suspended ultrafine dry powder automatic fire extinguishing device includes: a cylinder 1 and a heat-sensing glass bulb nozzle assembly 4. The heat-sensing glass bulb nozzle assembly 4 is mounted directly below the cylinder 1. A hollow tube 2 is connected to the bottom of the cylinder 1. A rotating mechanism 5 is mounted inside the hollow tube 2. The rotating mechanism 5 includes an impeller 51, which is connected to the hollow tube 2 via a bearing with a seat. A horizontal shaft 53 is connected to the back of the impeller 51, and a second conical tooth 52 is connected to the back of the horizontal shaft 53. A hollow column 3 is connected to the bottom of the hollow tube 2. A spherical bearing 31 is mounted inside the hollow column 3. The inner cavity of the spherical bearing 31 is connected to the outside of the heat-sensing glass bulb nozzle assembly 4. A first conical tooth 32 is sleeved on the outside of the heat-sensing glass bulb nozzle assembly 4. The first conical tooth 32 meshes with the second conical tooth 52. Nozzles are connected to both sides of the bottom of the heat-sensing glass bulb nozzle assembly 4.
[0022] The cylinder 1, the heat-sensing glass bulb nozzle assembly 4, and the pressure indicator 41 are combined to form a common suspended ultra-fine dry powder automatic fire extinguishing device in the prior art. The cylinder 1 stores dry powder and nitrogen inside, the hollow tube 2 allows the dry powder and nitrogen to flow, the hollow column 3 can support the heat-sensing glass bulb nozzle assembly 4, and the heat-sensing glass bulb nozzle assembly 4 can rotate in the inner cavity of the hollow column 3 via the spherical bearing 31. The heat-sensing glass bulb nozzle assembly 4 includes a tube body, inside which a heat-sensing glass bulb is assembled. The impeller 51 can rotate via the flow of nitrogen and dry powder, the second conical tooth 52 can drive the first conical tooth 32 to rotate, and the horizontal shaft 53 can drive the second conical tooth 52 to rotate.
[0023] The hollow column 3 is equipped with a pressure indicator 41, which is covered with a protective sleeve. The pressure indicator 41 allows the staff to view the pressure data inside the device. The hollow tube 2 has auxiliary tubes 21 connected to both sides of its exterior. The two auxiliary tubes 21 are designed to be staggered and are connected to the hollow column 3 and the cylinder 1 respectively. The auxiliary tubes 21 facilitate the flow of pressure and dry powder.
[0024] The impeller 51 has blades evenly distributed on its exterior, and the blades are located directly below the top secondary pipe 21 of the hollow tube 2. The blades can be driven by the flowing rice. The top of the cylinder 1 is equipped with a lifting ring 11, and an anti-slip pad is fitted on the outside of the lifting ring 11. The lifting ring 11 facilitates the suspension of the cylinder 1. A sealed bearing is fitted on the outside of the horizontal shaft 53. The sealed bearing is connected to the hollow tube 2 and improves the sealing between the horizontal shaft 53 and the hollow tube 2.
[0025] This scheme first involves installing the cylinder 1. When the temperature of the installation environment reaches the rated temperature of the heat-sensing glass bulb in the inner cavity of the heat-sensing glass bulb nozzle assembly 4, the heat-sensing glass bulb cylinder 1 is automatically activated. The dry powder inside the cylinder 1 flows through the hollow tube 2 and hollow column 3 under internal pressure, and is finally discharged through the heat-sensing glass bulb nozzle assembly 4. It is then sprayed out through the nozzles at both ends of the heat-sensing glass bulb nozzle assembly 4. At the same time, as the dry powder flows, it drives the impeller 51 to rotate, which in turn drives the second conical tooth 52 to rotate. Finally, the first conical tooth 32 drives the heat-sensing glass bulb nozzle assembly 4 to rotate, and the heat-sensing glass bulb nozzle assembly 4 extinguishes the fire source by rotating.
[0026] By reducing the number of nozzles at the bottom of the heat-sensing glass bulb nozzle assembly 4, the spray pressure of the nozzles on both sides of the bottom of the heat-sensing glass bulb nozzle assembly 4 is increased, thereby increasing the spray range and distance of the dry powder, improving the extinguishing speed and effect on the fire source. At the same time, the pressure inside the cylinder 1 is used to drive the impeller 51 and the second conical tooth 52 to drive the first conical tooth 32 and the heat-sensing glass bulb nozzle assembly 4 to rotate, thereby increasing the spray range of the heat-sensing glass bulb nozzle assembly 4 and avoiding the spraying of dry powder when the heat-sensing glass bulb nozzle assembly 4 is stationary, which would reduce the extinguishing effect on the fire source.
[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 process, method, article, or apparatus.
[0028] 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 suspended ultrafine dry powder automatic fire extinguishing device, comprising: The cylinder (1) and the temperature-sensing glass bulb nozzle assembly (4) are mounted directly below the cylinder (1). The cylinder (1) has a hollow tube (2) connected to its bottom. A rotating mechanism (5) is mounted inside the hollow tube (2). The rotating mechanism (5) includes an impeller (51). A horizontal shaft (53) is connected to the back of the impeller (51). A second conical tooth (52) is connected to the back of the horizontal shaft (53). The bottom of the hollow tube (2) is connected to a hollow column (3). The inner cavity of the hollow column (3) is equipped with a spherical bearing (31). The inner cavity of the spherical bearing (31) is connected to the outside of the temperature-sensing glass bulb nozzle assembly (4). The outside of the temperature-sensing glass bulb nozzle assembly (4) is fitted with a first conical tooth (32). The first conical tooth (32) is meshed with a second conical tooth (52). The bottom two sides of the temperature-sensing glass bulb nozzle assembly (4) are connected to nozzles.
2. The suspended ultrafine dry powder automatic fire extinguishing device according to claim 1, characterized in that: The hollow column (3) is fitted with a pressure indicator (41) on the outside, and the pressure indicator (41) is fitted with a protective sleeve on the outside.
3. The suspended ultrafine dry powder automatic fire extinguishing device according to claim 1, characterized in that: The hollow tube (2) has secondary tubes (21) connected to both sides of its exterior. The two secondary tubes (21) are designed to be staggered, and the two secondary tubes (21) are respectively connected to the hollow column (3) and the cylinder (1).
4. The suspended ultrafine dry powder automatic fire extinguishing device according to claim 3, characterized in that: The impeller (51) has fan blades evenly distributed on its exterior, and the fan blades are located directly below the top secondary tube (21) of the hollow tube (2).
5. The suspended ultrafine dry powder automatic fire extinguishing device according to claim 1, characterized in that: A sealed bearing is fitted around the outside of the horizontal shaft (53), and the sealed bearing is connected to the hollow tube (2).
6. The suspended ultrafine dry powder automatic fire extinguishing device according to claim 1, characterized in that: The top of the cylinder (1) is fitted with a lifting ring (11), and an anti-slip pad is sleeved on the outside of the lifting ring (11).