Nozzle for heptafluoropropane fire extinguishing device

Abstract

The utility model discloses a nozzle for a heptafluoropropane fire extinguishing device, and relates to the technical field of heptafluoropropane. The spraying head comprises a spraying head body, a second spraying opening is formed in one side of the spraying head body, a plurality of first spraying openings are formed in the circumferential side of the spraying head body, a shielding groove is formed in the circumferential inner wall of the spraying head body and communicated with the first spraying openings, and a plurality of shielding grooves are slidably connected to one side wall of the shielding groove. And one side of each shielding groove is fixedly connected with a rotating pipe, the opening size of the first spraying opening is adjusted, the spraying amount of the heptafluoropropane fire extinguishing device is adjusted, and waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heptafluoropropane, and particularly relates to a nozzle for a heptafluoropropane fire extinguishing device. Background Art

[0002] Heptafluoropropane (HFC-227ea / FM200) is a clean gas chemical fire extinguishing agent that mainly extinguishes fires chemically and has a physical fire extinguishing effect. It belongs to polyfluorinated alkanes, and its molecular formula is C3HF7; it is colorless, odorless, low-toxic, non-conductive, does not pollute the protected object, and will not damage property and precision facilities.

[0003] When a heptafluoropropane fire extinguisher is in use, the flow rate of the nozzle is generally fixed. When extinguishing a fire in a small area, a large amount of gas is ejected from the nozzle for fire extinguishing. However, in fact, for a small-area fire, a large amount of heptafluoropropane does not need to be wasted.

[0004] It should be noted that the above content belongs to the technical cognition scope of the inventor and does not necessarily constitute the prior art. Content of the Utility Model

[0005] In order to solve the above problems, the purpose of the utility model is to provide a nozzle for a heptafluoropropane fire extinguishing device.

[0006] To achieve the above purpose, the utility model provides a nozzle for a heptafluoropropane fire extinguishing device, which includes a nozzle body. A second ejection port is opened on one side of the nozzle body, and a plurality of first ejection ports are opened on the circumferential side of the nozzle body. A shielding groove is opened on the circumferential inner wall of the nozzle body, and the shielding groove communicates with the plurality of first ejection ports. A plurality of shielding plates are slidably connected to one side wall of the shielding groove, and a rotating pipe is fixedly connected to one side of the plurality of shielding plates.

[0007] In one example, a plurality of first connecting plates are fixedly connected to the circumferential inner wall of the rotating pipe. An installation ring is fixedly connected to one side of the plurality of first connecting plates. A first thread groove is opened on the circumferential inner wall of the installation ring, and a screw rod is threadedly connected in the first thread groove. A plug is fixedly connected to one side of the screw rod.

[0008] In one example, a rotating frame is fixedly connected to one side of the rotating pipe, and the rotating frame is rotatably connected to one side of the nozzle body.

[0009] In one example, a circular block is fixedly connected to the other side of the screw rod, and a second connecting plate is fixedly connected to the circumferential side of the circular block.

[0010] In one example, a limiting groove is opened on the circumferential inner wall of the nozzle body, and a limiting ring is fixedly connected to the circumferential side of the rotating pipe. The limiting ring is rotatably connected in the limiting groove.

[0011] In one example, a rotating ring is fixedly connected to the circumferential side of a plurality of the second connecting plates. A sealing airbag is arranged on one side of the rotating ring, and the sealing airbag is fixedly connected to one side of a rotating frame.

[0012] In one example, a connecting pipe is rotatably connected to one side of the rotating ring. A second thread groove is threadedly connected to the circumferential side of the connecting pipe. A first sealing ring and a second sealing ring are respectively fixedly connected to the circumferential sides of the nozzle body and the sealing airbag.

[0013] The nozzle for a heptafluoropropane fire extinguishing device proposed by the present utility model can bring the following beneficial effects:

[0014] 1. The nozzle body, the first injection port, the shielding groove, the shielding plate and the rotating pipe are provided. By rotating the rotating pipe, the rotating pipe drives the shielding plate to rotate. The shielding plate rotates in the shielding groove, and the shielding plate can shield the notch of the first injection port, thereby adjusting the opening size at the first injection port, adjusting the spraying amount of the heptafluoropropane fire extinguishing device, and reducing waste.

[0015] 2. The first connecting plate, the mounting ring, the first thread groove, the screw rod and the plug are provided. By rotating the screw rod, the screw rod is threadedly connected to the first thread groove, and the screw rod moves towards the second injection port. The screw rod drives the plug to move until the plug can reach the notch of the second injection port. At this time, the plug can block the opening of the second injection port, and it is possible to choose to spray from the second injection port or from the first injection port, with stronger pertinence. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is a three-dimensional view of the present utility model;

[0018] Figure 2 is a three-dimensional sectional view of the present utility model;

[0019] Figure 3 is the present utility model Figure 2 is a partial enlarged view of part A in

[0020] In the figure, 1 is the nozzle body; 2 is the first ejection orifice; 3 is the second ejection orifice; 4 is the first sealing ring; 5 is the second sealing ring; 6 is the rotating frame; 7 is the rotating pipe; 8 is the sealing airbag; 9 is the connecting pipe; 10 is the first connecting plate; 11 is the mounting ring; 12 is the first thread groove; 13 is the plug; 14 is the limiting groove; 15 is the limiting ring; 16 is the circular block; 17 is the second connecting plate; 18 is the second thread groove; 19 is the shielding plate; 20 is the screw; 21 is the shielding groove; 22 is the rotating ring. Detailed implementation mode

[0021] In order to more clearly illustrate the overall concept of the present invention, the following will be described in detail by way of examples in conjunction with the accompanying drawings of the specification.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0023] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0024] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one solution", "some solutions", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the solution or example are included in at least one solution or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same solution or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more solutions or examples.

[0026] As Figures 1 to 3 shown, an embodiment of the present utility model provides a nozzle for a heptafluoropropane fire extinguishing device, which includes a nozzle body 1. A second ejection port 3 is provided on one side of the nozzle body 1. A plurality of first ejection ports 2 are provided on the circumferential side of the nozzle body 1. A shielding groove 21 is provided on the circumferential inner wall of the nozzle body 1, and the shielding groove 21 communicates with the plurality of first ejection ports 2. A plurality of shielding plates 19 are slidably connected to one side wall of the shielding groove 21, and a rotating tube 7 is fixedly connected to one side of the plurality of shielding plates 19.

[0027] Specifically, when it is necessary to adjust the ejection amount, rotate the rotating tube 7. The rotating tube 7 drives the shielding plate 19 to rotate. The shielding plate 19 rotates in the shielding groove 21. The shielding plate 19 can shield the notch of the first ejection port 2, thereby adjusting the opening size at the first ejection port 2 and adjusting the ejection amount of the heptafluoropropane fire extinguishing device.

[0028] A plurality of first connecting plates 10 are fixedly connected to the circumferential inner wall of the rotating tube 7. An installation ring 11 is fixedly connected to one side of the plurality of first connecting plates 10. A first thread groove 12 is provided on the circumferential inner wall of the installation ring 11. A screw rod 20 is threadedly connected in the first thread groove 12. A plug 13 is fixedly connected to one side of the screw rod 20.

[0029] Specifically, rotate the screw rod 20. The screw rod 20 is threadedly connected with the first thread groove 12. The screw rod 20 moves towards the second ejection port 3. The screw rod 20 drives the plug 13 to move until the plug 13 can reach the notch of the second ejection port 3. At this time, the plug 13 can block the opening of the second ejection port 3. It is possible to choose to eject from the second ejection port 3 or from the first ejection port 2, with stronger pertinence.

[0030] A rotating frame 6 is fixedly connected to one side of the rotating tube 7. The rotating frame 6 is rotatably connected to one side of the nozzle body 1.

[0031] Specifically, the rotating frame 6 can facilitate the user to rotate the rotating tube 7.

[0032] On the other side of the screw rod 20, there is a circular block 16 fixedly connected, and on the circumferential side of the circular block 16, there is a second connecting plate 17 fixedly connected.

[0033] Specifically, the second connecting plate 17 and the circular block 16 can drive the screw rod 20 to rotate.

[0034] On the circumferential inner wall of the nozzle body 1, there is a limiting groove 14 provided, and on the circumferential side of the rotating pipe 7, there is a limiting ring 15 fixedly connected. The limiting ring 15 is rotationally connected in the limiting groove 14.

[0035] Specifically, the limiting ring 15 rotates along with the rotating pipe 7. The limiting ring 15 rotates in the limiting groove 14, which can improve the rotational stability of the rotating pipe 7.

[0036] On the circumferential side of multiple second connecting plates 17, there is a rotating ring 22 fixedly connected. On one side of the rotating ring 22, there is a sealing airbag 8 provided, and the sealing airbag 8 is fixedly connected to one side of the rotating frame 6.

[0037] Specifically, when the rotating ring 22 rotates, it will move. The sealing airbag 8 will be compressed as the rotating ring 22 moves. The sealing airbag 8 will fit the rotating ring 22. The side of the rotating ring 22 that is in contact with the sealing airbag 8 is rotationally connected to the sealing airbag 8. A connecting ring can be provided on one side of the sealing airbag 8, and the rotating ring 22 is rotationally connected to the connecting ring. Preferably, the moving distance of the rotating ring 22 is not large, so the sealing airbag 8 is sufficient for use.

[0038] On one side of the rotating ring 22, there is a connecting pipe 9 rotationally connected. On the circumferential side of the connecting pipe 9, there is a second thread groove 18 threadedly connected. On the circumferential sides of the nozzle body 1 and the sealing airbag 8, there are a first sealing ring 4 and a second sealing ring 5 fixedly connected respectively.

[0039] Specifically, the second thread groove 18 and the connecting pipe 9 can facilitate the connection with the spray pipe of the fire extinguisher. The first sealing ring 4 and the second sealing ring 5 can improve the sealing performance between the nozzle body 1 and the rotating frame 6, and between the sealing airbag 8 and the rotating ring 22.

[0040] Working principle: In the face of different fire intensities, rotate the rotating pipe 7. The rotating pipe 7 drives the baffle 19 to rotate. The baffle 19 rotates in the shielding groove 21. The baffle 19 can block the notch of the first spraying port 2, thereby adjusting the opening size at the first spraying port 2, adjusting the spraying amount of the heptafluoropropane fire extinguishing device, and reducing waste.

[0041] Each embodiment in this specification is described in a progressive manner. The same or similar parts among the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment.

[0042] The above are only the embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims

1. A nozzle for a heptafluoropropane fire extinguishing device, characterized in that: The invention comprises a nozzle body (1), a second injection port (3) is provided on one side of the nozzle body (1), a plurality of first injection ports (2) are provided on the circumferential side of the nozzle body (1), a shielding groove (21) is provided on the circumferential inner wall of the nozzle body (1), and the shielding groove (21) is connected to the plurality of first injection ports (2), a side wall of the shielding groove (21) is slidably connected to the plurality of shielding grooves (21), and a rotating tube (7) is fixedly connected to one side of the plurality of shielding grooves (21).

2. A nozzle for a heptafluoropropane fire extinguishing device according to claim 1, characterized in that: A plurality of first connecting plates (10) are fixedly connected to the circumferential inner wall of the rotating tube (7), a mounting ring (11) is fixedly connected to one side of the plurality of first connecting plates (10), a first thread groove (12) is provided on the circumferential inner wall of the mounting ring (11), a screw rod (20) is threadedly connected to the first thread groove (12), and a plug (13) is fixedly connected to one side of the screw rod (20).

3. A nozzle for a heptafluoropropane fire extinguishing device according to claim 1, characterized in that: A rotating frame (6) is fixedly connected to one side of the rotating tube (7), and the rotating frame (6) is rotatably connected to one side of the nozzle body (1).

4. A nozzle for a heptafluoropropane fire extinguishing device according to claim 2, characterized in that: A circular block (16) is fixedly connected to the other side of the screw rod (20), and a second connecting plate (17) is fixedly connected to the circumferential side of the circular block (16).

5. A nozzle for a heptafluoropropane fire extinguishing device according to claim 1, characterized in that: A limiting groove (14) is provided on the circumferential inner wall of the nozzle body (1), a limiting ring (15) is fixedly connected to the circumferential side of the rotating tube (7), and the limiting ring (15) is rotatably connected in the limiting groove (14).

6. A nozzle for a heptafluoropropane fire extinguishing device according to claim 4, characterized in that: A rotating ring (22) is fixedly connected to the circumferential side of the plurality of second connecting plates (17), a sealing airbag (8) is provided on one side of the rotating ring (22), and the sealing airbag (8) is fixedly connected to one side of the rotating frame (6).

7. A nozzle for a heptafluoropropane fire extinguishing device according to claim 6, characterized in that: A connecting tube (9) is rotatably connected to one side of the rotating ring (22), a second thread groove (18) is threadedly connected to the circumferential side of the connecting tube (9), and a first sealing ring (4) and a second sealing ring (5) are fixedly connected to the circumferential sides of the nozzle body (1) and the sealing airbag (8), respectively.

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