A high-pressure nozzle cover for a carbon dioxide fire extinguishing system
By designing a combination of nozzle cover, connector, jet pipe, sealing component and expansion component, the problem of the inability of existing high-pressure nozzle cover to provide protection is solved, ensuring that the nozzle can work normally in emergency situations, expanding the range of fire extinguishing gas spray, and improving the reliability and durability of carbon dioxide fire extinguishing system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIUJIANG HAOHANG FIRE FIGHTING EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-03
AI Technical Summary
Existing high-pressure nozzle covers for carbon dioxide fire extinguishing systems are mainly decorative and cannot effectively protect the high-pressure nozzles. As a result, the nozzles are susceptible to aging and damage due to environmental factors and cannot function properly in emergency situations.
A high-pressure nozzle cover is designed, comprising a nozzle cover, a connector, an air jet pipe, a nozzle, a sealing component, and an expansion component. The connector connects to a high-pressure pipeline, and the sealing component and expansion component ensure the normal operation of the nozzle in emergency situations, prevent dust and moisture intrusion, and automatically open the nozzle at high temperatures.
It achieves effective sealing and protection of the nozzles, ensuring that the nozzles can work normally in emergency situations, expanding the range of fire extinguishing gas spray, and improving the reliability and durability of the system.
Smart Images
Figure CN224441998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of carbon dioxide fire extinguishing systems, and in particular to a high-pressure nozzle cover for a carbon dioxide fire extinguishing system. Background Technology
[0002] In carbon dioxide fire extinguishing systems, high-pressure nozzles are one of the key components. They are responsible for converting liquid carbon dioxide into fine particles and spraying them out to quickly reduce the temperature of the fire area and isolate oxygen.
[0003] However, the high-pressure nozzle covers used in existing carbon dioxide fire extinguishing systems are mostly decorative and cannot protect the high-pressure nozzles. The high-pressure nozzles are exposed to the external environment and are easily affected by environmental factors, leading to aging and damage, which in turn causes the nozzles to fail to work properly in emergency situations.
[0004] Therefore, a high-pressure nozzle cover for carbon dioxide fire extinguishing systems has now been developed that can seal and protect the nozzles, ensuring that they can function normally in emergency situations. Utility Model Content
[0005] To overcome the shortcomings of existing high-pressure nozzle covers for carbon dioxide fire extinguishing systems, which are mostly decorative and cannot protect the high-pressure nozzles, this utility model provides a high-pressure nozzle cover for carbon dioxide fire extinguishing systems that can seal and protect the nozzles, ensuring that the nozzles can work normally in emergency situations.
[0006] The technical solution is as follows: A high-pressure nozzle cover for a carbon dioxide fire extinguishing system includes a nozzle cover, a connector, an air jet pipe, a nozzle, a sealing component, and an expansion component. The upper part of the nozzle cover is connected to the connector, the lower side of the connector is connected to the air jet pipe, the lower side of the air jet pipe is connected to the nozzle, the nozzle is provided with a sealing component for sealing the air outlet, and the sealing component is provided with an expansion component for expanding the nozzle cover.
[0007] Preferably, the inner side of the connector is threaded.
[0008] Preferably, the nozzle cover is made of a flexible material.
[0009] Preferably, the sealing assembly includes a ferrule, a connecting plate, an elastic element, a heat-sensitive plate, a rotating plate, and a cover plate. The rotating plate is rotatably connected to the nozzle head, and the cover plate is connected to the lower side of the rotating plate. The rotating plate has a groove, and the ferrule is slidably connected to the rotating plate through the groove. Multiple connecting plates are connected to the upper part of the ferrule. The connecting plates on both the front and rear sides are connected to the connector with elastic elements. Initially, the elastic elements are in a stretched state. Heat-sensitive plates are connected to the lower left and right sides of the jet pipe, and the heat-sensitive plates are in contact with the ferrule.
[0010] Preferably, the elastic element is a spring.
[0011] Preferably, the expansion assembly includes a first connecting frame, a connecting rod, and a second connecting frame. The first connecting frame is connected to each connecting plate, and multiple second connecting frames are connected to the inside of the nozzle cover. Each second connecting frame is rotatably connected to an adjacent first connecting frame by a connecting rod.
[0012] Beneficial effects: This utility model connects the nozzle cover to the high-pressure pipeline of the carbon dioxide fire extinguishing system through a connector, so that the pipeline is connected to the jet pipe and the nozzle. At this time, the cover plate seals the nozzle, achieving the effect of sealing and protecting the nozzle, and ensuring that the nozzle can work normally in an emergency. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the nozzle cover of this utility model.
[0014] Figure 2 This is a three-dimensional structural cross-sectional view of the nozzle cover, connector, and other parts of this utility model.
[0015] Figure 3 This is a three-dimensional structural diagram of the rotating plate and other components of this utility model.
[0016] Figure 4 This is a three-dimensional structural diagram of the cover plate and other components of this utility model.
[0017] Figure 5 This is a three-dimensional structural diagram of the nozzle and other components of this utility model.
[0018] Reference numerals: 1_nozzle cover, 2_connector, 3_jet pipe, 4_clamp, 41_slide groove, 5_connecting plate, 6_spring, 7_first connecting frame, 8_connecting rod, 9_second connecting frame, 10_thermal plate, 11_rotating plate, 12_cover plate, 13_nozzle. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0020] A high-pressure nozzle shroud for a carbon dioxide fire extinguishing system, such as Figures 1-5 As shown, it includes a nozzle cover 1, a connector 2, an air jet pipe 3, a nozzle 13, a plugging assembly, and an expansion assembly. The upper part of the nozzle cover 1 is connected to the connector 2. The inner side of the connector 2 is threaded to facilitate the connection of a high-pressure nozzle. The nozzle cover 1 is made of elastic material to facilitate expansion. The lower side of the connector 2 is connected to the air jet pipe 3. The lower side of the air jet pipe 3 is connected to the nozzle 13. The nozzle 13 is provided with a plugging assembly, and the plugging assembly is provided with an expansion assembly.
[0021] like Figures 2-4As shown, the sealing assembly includes a ferrule 4, a connecting plate 5, an elastic element, a thermal plate 10, a rotating plate 11, and a cover plate 12. The rotating plate 11 is rotatably connected to the nozzle 13, and the cover plate 12 is connected to the lower side of the rotating plate 11. The rotating plate 11 has a sliding groove 41, and the ferrule 4 is slidably connected to the rotating plate 11 through the sliding groove 41. Four connecting plates 5 are connected to the upper part of the ferrule 4. The connecting plates 5 on both the front and rear sides are connected to the connector 2 with elastic elements. Initially, the elastic elements are in a stretched state. The elastic elements are springs 6. The thermal plates 10 are connected to the lower left and right sides of the jet pipe 3, and the thermal plates 10 are in contact with the ferrule 4.
[0022] like Figure 2 As shown, the expansion assembly includes a first connecting frame 7, a connecting rod 8, and a second connecting frame 9. The first connecting frame 7 is connected to each of the connecting plates 5. Four second connecting frames 9 are connected to the inside of the nozzle cover 1. Each of the second connecting frames 9 is rotatably connected to the connecting rod 8 between it and the adjacent first connecting frame 7.
[0023] When using this invention, the nozzle cover 1 is first connected to the high-pressure pipeline of the carbon dioxide fire extinguishing system via the connector 2, so that the high-pressure pipeline is connected to the jet pipe 3 and the nozzle 13. At this time, the cover plate 12 seals the nozzle 13 to prevent dust and moisture from entering. In the event of a fire, the temperature rises, causing the heat-sensitive plate 10 to melt. Subsequently, the spring 6 rebounds, causing the clamp 4 to move upward and push the rotating plate 11 to rotate, so that the cover plate 12 rotates and connects with the nozzle 13. Then, the fire extinguishing gas is sprayed out from the nozzle 13 to extinguish the surrounding fire. As the clamp 4 moves upward, it drives the connecting plate 5 and the first connecting frame 7 to move upward, so that the connecting rod 8 rotates and pushes the second connecting frame 9 outward, causing the nozzle cover 1 to open and expand the range of fire extinguishing gas spray. This effectively seals and protects the nozzle 13, ensuring that the nozzle 13 can work normally in an emergency.
[0024] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A high-pressure nozzle cover for a carbon dioxide fire extinguishing system, characterized in that, It includes a nozzle cover (1), a connector (2), an air jet pipe (3), a nozzle (13), a plugging assembly, and an expansion assembly. The nozzle cover (1) is connected to the upper part of the connector (2), the lower side of the connector (2) is connected to the air jet pipe (3), the lower side of the air jet pipe (3) is connected to the nozzle (13), the nozzle (13) is provided with a plugging assembly for plugging the air outlet, and the plugging assembly is provided with an expansion assembly for expanding the nozzle cover (1).
2. A high pressure nozzle shield for a carbon dioxide fire extinguishing system according to claim 1, characterized in that The connector (2) has threads on the inside.
3. A high pressure nozzle shield for carbon dioxide fire extinguishing systems according to claim 1, characterized in that The nozzle cover (1) is made of elastic material.
4. A high pressure nozzle shield for carbon dioxide fire extinguishing systems according to claim 1, characterized in that The sealing assembly includes a ferrule (4), a connecting plate (5), an elastic element, a heat-sensitive plate (10), a rotating plate (11), and a cover plate (12). The nozzle (13) is rotatably connected to the rotating plate (11), and the cover plate (12) is connected to the lower side of the rotating plate (11). The rotating plate (11) has a groove (41), and the ferrule (4) is slidably connected to the rotating plate (11) through the groove (41). Multiple connecting plates (5) are connected to the upper part of the ferrule (4). The connecting plates (5) on both the front and rear sides are connected to the connector (2) with an elastic element. Initially, the elastic element is in a stretched state. The lower left and right sides of the jet pipe (3) are connected to the heat-sensitive plates (10), and the heat-sensitive plates (10) are in contact with the ferrule (4).
5. A high pressure nozzle shield for a carbon dioxide fire extinguishing system according to claim 4, characterized in that The elastic element is a spring (6).
6. A high pressure nozzle shield for a carbon dioxide fire extinguishing system according to claim 4, wherein The expansion assembly includes a first connecting frame (7), a connecting rod (8), and a second connecting frame (9). The first connecting frame (7) is connected to the connecting plate (5), and multiple second connecting frames (9) are connected to the inside of the nozzle cover (1). Each second connecting frame (9) is rotatably connected to the adjacent first connecting frame (7) by a connecting rod (8).