A nozzle structure and fire extinguishing device
By fixing a guide tube to the nozzle position and rotating the adjusting component inside it, the problem of the nozzle orientation being unable to be adjusted is solved, enabling flexible adjustment and improving the fire extinguishing effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI JIANDUN FIRE TECH CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-29
AI Technical Summary
In confined spaces, the nozzle orientation of thermal aerosol fire extinguishing devices cannot be adjusted, affecting the fire extinguishing effect. In existing technologies, directional nozzles may not be able to be installed or are not feasible.
A guide tube is fixed at the nozzle position, and an inclined channel is set inside the guide tube. The orientation of the channel can be adjusted by rotating the adjusting component, so as to achieve flexible adjustment of the nozzle orientation.
It enables flexible adjustment of the nozzle orientation to meet the needs of different spatial arrangements and improves the fire extinguishing effect of the fire extinguishing device.
Smart Images

Figure CN224292394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguishing device technology, and in particular to a nozzle structure and a fire extinguishing device. Background Technology
[0002] Thermal aerosol fire extinguishing devices are widely used due to their high extinguishing efficiency, small size, and environmental friendliness. These devices use electricity and / or heat to provide the aerosol generator inside the device with a certain starting energy, causing the aerosol generator to burn layer by layer, thus allowing the device to stably and uniformly release the aerosol extinguishing agent.
[0003] Thermal aerosol fire suppression systems are often used in confined spaces, allowing them to fully utilize their small size advantage. However, in application scenarios such as energy storage cabinets, automotive engine compartments, and battery packs, the internal space layout often varies significantly due to differences in design philosophies and technologies among different manufacturers. These different spatial arrangements may prevent the nozzles of the fire suppression system from reaching their ideal positions, thus affecting its fire suppression effectiveness.
[0004] Our current approach to this issue involves adjusting the discharge piping as disclosed in CN219700919U. However, in extremely confined spaces, directional sprinklers may not be feasible for installation. Some aerosol fire extinguishing systems may also not be suitable for installing directional sprinklers. Utility Model Content
[0005] The purpose of this utility model is to provide a nozzle structure, which can meet the needs of different nozzle orientations by fixing a guide tube at the position of the nozzle on the housing. The guide tube has an inclined channel.
[0006] Another objective of this invention is to provide a fire extinguishing device employing this nozzle structure.
[0007] To achieve the above objectives, this utility model provides a nozzle structure, including a housing, on which at least one nozzle is provided, and a guide tube is fixedly connected to the housing at the position corresponding to the nozzle, the guide tube having an inclined channel inside.
[0008] The guide tube has a tapered tube structure, with the small end of the tapered tube structure connected and fixed to the nozzle. An adjusting component is rotatably installed inside the guide tube, and the orientation of the channel can be adjusted by rotating the adjusting component.
[0009] The adjusting component includes a frustum, the outer peripheral wall of which is adapted to the inner wall of the guide tube. The frustum is fitted into the guide tube. One side of the frustum has an inclined surface, which forms the channel with the guide tube. A limiting platform is provided at the top of the frustum, and a limiting flange is provided at the lower edge of the limiting platform. The housing has an annular groove located outside the nozzle, and the limiting flange is fitted into the annular groove.
[0010] The bottom outer wall of the frustum is provided with a protrusion, and the upper edge of the protrusion is provided with an upwardly extending baffle. A groove is formed between the baffle and the frustum, and the groove is engaged with the end of the guide tube away from the housing.
[0011] The adjusting component includes a frustum portion, the outer peripheral wall of which is adapted to the inner wall of the guide tube. The frustum portion is fitted into the guide tube. An axially penetrating oblique hole is provided on the frustum portion, forming the channel. A limiting platform is provided on the top of the frustum portion, and the limiting platform is fitted into the housing.
[0012] The lower edge of the limiting platform is provided with a limiting flange, and the housing is provided with an annular groove on the outside of the nozzle, and the limiting flange is fitted into the annular groove.
[0013] The bottom outer wall of the frustum portion is provided with a protrusion, which abuts against the end of the guide tube away from the housing.
[0014] The upper edge of the protrusion is provided with an upwardly extending baffle, and a groove is formed between the baffle and the frustum portion. The groove is engaged with the end of the guide tube away from the housing.
[0015] The adjusting component is provided with at least two adjusting holes.
[0016] A fire extinguishing device employing the aforementioned nozzle structure.
[0017] Compared with the prior art, this utility model has the following technical effects:
[0018] 1. This utility model fixes a guide tube to the position of the nozzle on the housing, and the guide tube is provided with an inclined channel to meet the requirements of the nozzle orientation.
[0019] 2. This utility model fixes a guide tube to the position of the nozzle on the housing, and rotates and installs an adjusting component inside the guide tube. The adjusting component is provided with an inclined channel. By rotating the adjusting component, the nozzle orientation can be flexibly adjusted, thereby adjusting the orientation of the channel as needed to meet the nozzle orientation requirements. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0021] Figure 1 This is a schematic diagram of the structure of the fire extinguishing device of this utility model.
[0022] Figure 2 This is a partial structural diagram of the guide tube fixed to the nozzle on the shell of this utility model.
[0023] Figure 3 This is a bottom view structural diagram of the guide tube fixed to the nozzle on the shell of this utility model.
[0024] Figure 4 for Figure 2 A schematic diagram of the structure of section AA in the middle.
[0025] Figure 5 for Figure 4 Enlarged structural diagram at point B.
[0026] Figure 6 This is a three-dimensional structural diagram of the first type of adjusting component installed inside the guide tube of this utility model.
[0027] Figure 7 This is a front view schematic diagram of the structure in which the first type of adjusting component is installed inside the guide tube of this utility model.
[0028] Figure 8 for Figure 7 A schematic diagram of the structure of the CC section.
[0029] Figure 9 This is a three-dimensional structural diagram of the first type of adjusting component of this utility model.
[0030] Figure 10 This is a schematic diagram of the structure of the guide tube of this utility model with the second type of adjusting component installed inside.
[0031] Figure 11 This is a front view schematic diagram of the structure in which a second type of adjusting component is installed inside the guide tube of this utility model.
[0032] Figure 12 for Figure 11 A schematic diagram of the structure of the DD section.
[0033] Figure 13 This is a three-dimensional structural diagram of the second type of adjusting component of this utility model.
[0034] Figure 14 This is a schematic diagram of the inclined tubular structure of the guide tube of this utility model.
[0035] Figure label:
[0036] 10 housing, 11 nozzle, 12 guide tube, 13 annular groove;
[0037] Adjusting component 20, frustum 21, inclined surface 22, limiting platform 23, limiting flange 24, protrusion 25, stop 26, slot 27, adjusting hole 28, inclined hole 29.
[0038] Channel 30. Detailed Implementation
[0039] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0040] Example 1:
[0041] See Figure 1 , 14 A nozzle structure includes a housing 10, on which at least one nozzle 11 is provided, and a guide tube 12 is fixedly connected to the housing 10 at the position corresponding to the nozzle 11, and the guide tube 12 has an inclined channel 30 inside.
[0042] By fixing a guide tube 12 to the housing 10 at the position corresponding to the nozzle 11, and the guide tube 12 having an inclined channel 30, the needs of different nozzle orientations can be met.
[0043] In this embodiment, see Figure 14 The guide tube 12 is a round tube, which is fixedly connected to the housing 10 at an angle. The guide tube 12 can be welded to the housing 10 or it can be integrally formed with the housing 10.
[0044] Example 2:
[0045] See Figure 2 , 3 4. The guide tube 12 has a tapered tube structure, with the small end of the tapered tube structure connected and fixed to the nozzle 11. An adjusting member 20 is rotatably installed inside the guide tube 12, and the orientation of the channel 30 can be adjusted by rotating the adjusting member 20. The adjusting member 20 can be made of silicone or high-temperature resistant rubber.
[0046] In this embodiment, see Figure 4 , 56, 7, 8, 9. The adjusting component 20 includes a frustum 21. The outer peripheral wall of the frustum 21 is adapted to the inner wall of the guide tube 12. The frustum 21 is fitted into the guide tube 12. A slope 22 is provided on one side of the frustum 21, forming a channel 30 between the slope 22 and the guide tube 12. A limiting platform 23 is provided at the top of the frustum 21, and a limiting flange 24 is provided on the lower edge of the limiting platform 23. An annular groove 13 is provided on the outer side of the nozzle 11 of the housing 10, and the limiting flange 24 is fitted into the annular groove 13. With the above structure, the adjusting component 20 is fitted into the guide tube 12 to prevent the adjusting component 20 from falling out.
[0047] Furthermore, the bottom outer wall of the frustum portion 21 is provided with a protrusion 25, and the upper edge of the protrusion 25 is provided with an upwardly extending baffle 26. A groove 27 is formed between the baffle 26 and the frustum portion 21. The groove 27 is engaged with the end of the guide tube 12 away from the housing 10, which further improves the stability of the adjustment component 20 during installation.
[0048] In this embodiment, the orientation of the channel 30 can be adjusted by rotating the adjusting member 20.
[0049] Example 3:
[0050] In this embodiment, see Figure 10 , 11 12, 13, The adjusting component 20 includes a frustum 21. The outer peripheral wall of the frustum 21 is adapted to the inner wall of the guide tube 12. The frustum 21 is fitted inside the guide tube 12. An axially penetrating oblique hole is provided on the frustum 21, forming a channel 30. A limiting platform 23 is provided on the top of the frustum 21, and the limiting platform 23 is fitted onto the housing 10.
[0051] In this embodiment, the guide tube 12 can be a circular tube structure with a uniform diameter, such as... Figure 3 , 4 The cone-shaped tube structure shown.
[0052] Furthermore, a limiting flange 24 is provided on the lower edge of the limiting platform 23, and an annular groove 13 is provided on the outer side of the nozzle 11 of the housing 10. The limiting flange 24 is engaged in the annular groove 13, which further improves the stability of the adjustment component 20 during installation and prevents the adjustment component 20 from being squeezed and deformed during transportation. When the top of the adjustment component 20 is subjected to a thrust, the top of the adjustment component 20 is not easily deformed because the limiting flange 24 is engaged in the annular groove 13.
[0053] See Figure 13 The bottom outer wall of the frustum portion 21 is provided with a protrusion 25, which abuts against the end of the guide tube 12 away from the housing 10.
[0054] Furthermore, the upper edge of the protrusion 25 is provided with an upwardly extending flange 26, and a groove 27 is formed between the flange 26 and the frustum portion 21. The groove 27 is engaged with the end of the guide tube 12 away from the housing 10. The above structure improves the stability of the adjustment member 20 during installation.
[0055] See Figure 13 The adjusting member 20 is provided with at least two adjusting holes 28, so that the adjusting member 20 can be rotated and adjusted by a tool with a tweezer-like structure. During adjustment, the two tips of the tweezer-like tool are inserted into the adjusting holes 28, and the tool is rotated to adjust the adjusting member 20.
[0056] See Figure 9 Two adjustment holes 28 can be set on the inclined surface 22. See also Figure 9 Two adjustment holes 28 can be set on the top of the adjustment component 20.
[0057] Example 4:
[0058] Based on Example 1, Example 2, or Example 3, see [link to example]. Figure 1 A fire extinguishing device employing a nozzle structure.
[0059] Specifically, the fire extinguishing device can be the fire extinguishing device in the prior art CN219700919U, with the structure of this application replacing the discharge pipe structure.
[0060] The method of use or principle of this utility model:
[0061] See Figure 6 , 10 A guide tube 12 is fixedly connected to the housing 10 at the position corresponding to the nozzle 11. An adjusting component 20 is rotatably installed inside the guide tube 12. The adjusting component 20 can be made of silicone or high-temperature resistant rubber, and has a certain degree of elasticity. It can not only be locked inside the guide tube 12, but also be easily rotated and adjusted. The adjusting component 20 is provided with an inclined channel 30. By rotating the adjusting component 20, the orientation of the channel 30 can be adjusted as needed to meet the requirements of the nozzle orientation.
Claims
1. A nozzle structure, comprising a housing (10), wherein at least one nozzle (11) is provided on the housing (10), characterized in that: The housing (10) has a guide tube (12) fixed at the position corresponding to the nozzle (11), and the guide tube (12) has an inclined channel (30).
2. The nozzle structure according to claim 1, characterized in that: The guide tube (12) is a tapered tube structure. The small end of the tapered tube structure is connected and fixed to the nozzle (11). An adjusting component (20) is rotatably installed inside the guide tube (12). By rotating the adjusting component (20), the orientation of the channel (30) can be adjusted.
3. The nozzle structure according to claim 2, characterized in that: The adjusting component (20) includes a frustum (21), the outer peripheral wall of the frustum (21) is adapted to the inner wall of the guide tube (12), the frustum (21) is fitted in the guide tube (12), a slope (22) is provided on one side of the frustum (21), the channel (30) is formed between the slope (22) and the guide tube (12), a limiting platform (23) is provided on the top of the frustum (21), a limiting flange (24) is provided on the lower edge of the limiting platform (23), and an annular groove (13) is provided on the outer side of the nozzle (11) of the housing (10), and the limiting flange (24) is fitted in the annular groove (13).
4. The nozzle structure according to claim 3, characterized in that: The bottom outer wall of the frustum portion (21) is provided with a protrusion (25), and the upper edge of the protrusion (25) is provided with an upwardly extending baffle (26). A groove (27) is formed between the baffle (26) and the frustum portion (21). The groove (27) is engaged with the end of the guide tube (12) away from the housing (10).
5. The nozzle structure according to claim 2, characterized in that: The adjusting component (20) includes a frustum (21), the outer peripheral wall of the frustum (21) is adapted to the inner wall of the guide tube (12), the frustum (21) is fitted inside the guide tube (12), the frustum (21) is provided with an axially penetrating oblique hole (29), the oblique hole (29) forms the channel (30), and a limiting platform (23) is provided at the top of the frustum (21), the limiting platform (23) is fitted on the housing (10).
6. The nozzle structure according to claim 5, characterized in that: The lower edge of the limiting platform (23) is provided with a limiting flange (24), and the housing (10) is provided with an annular groove (13) on the outside of the nozzle (11), and the limiting flange (24) is fitted into the annular groove (13).
7. The nozzle structure according to claim 5, characterized in that: The bottom outer wall of the frustum portion (21) is provided with a protrusion (25), which abuts against the end of the guide tube (12) away from the housing (10).
8. The nozzle structure according to claim 7, characterized in that: The upper edge of the protrusion (25) is provided with an upwardly extending baffle (26), and a groove (27) is formed between the baffle (26) and the frustum (21). The groove (27) is engaged with the end of the guide tube (12) away from the housing (10).
9. A nozzle structure according to claim 2, characterized in that: The adjusting member (20) is provided with at least two adjusting holes (28).
10. A fire extinguishing device, characterized in that: The nozzle structure described in any one of claims 1-9 is adopted.