Preset type extending fire extinguishing rod

Abstract

The utility model discloses a preset type extension fire extinguishing rod which comprises a nozzle, a connecting cylinder, an extension cylinder and an ejection cylinder, the axes of the connecting cylinder, the extension cylinder and the ejection cylinder coincide, and the calibers of the connecting cylinder, the extension cylinder and the ejection cylinder are sequentially reduced; one end of the connecting cylinder is connected with the nozzle, the inner wall of the other end of the connecting cylinder is in sliding connection with one end of the extending cylinder, the inner wall of the other end of the extending cylinder is connected with one end of the ejection cylinder in a sleeved mode, the other end of the ejection cylinder is sealed, and multiple sets of spraying holes are formed in the side walls of the connecting cylinder, the extending cylinder and the ejection cylinder. When the fire extinguisher is used, the fire extinguishing agent can be ejected out of the ejection cylinder, the fire extinguishing agent is ejected from the side walls of the connecting cylinder, the extension cylinder and the ejection cylinder, an original single-point fire extinguisher ejection mode is changed into a multi-point fire extinguishing agent ejection mode from the side walls, the ejection periphery is enlarged, the ejection area is enlarged, fire can be extinguished more efficiently, and the occupied space is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to a pre-set extended fire extinguishing rod. Background Art

[0002] The fire-fighting device using a fire-detecting tube is a type of temperature-sensitive self-starting fire-fighting device that has just been developed at home and abroad in recent years. It is a simple, low-cost and highly reliable independent automatic fire detection / extinguishing system. This type of fire-fighting device uses a flexible and bendable fire-detecting tube as a fire detection and alarm component. At the same time, this fire-detecting tube can also serve as a pipeline for conveying and spraying fire extinguishing agents. The flexible fire-detecting tube can be easily arranged to the nearest point of each potential fire source. Once a fire occurs, the fire-detecting tube will rupture due to heat and immediately release the fire extinguishing agent to extinguish the fire. The fire-detecting tube has a certain length and is often used in distribution cabinets, substations, machine rooms, charging piles, power grids and other spaces. These spaces have many circuit components and are mostly layered structures. The existing fire extinguisher nozzle is only for single-point spraying, and the spraying area is insufficient, and the fire cannot be controlled in time. If the length of the fire-extinguishing tube is lengthened, the space occupied by the fire-fighting device will be increased. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a pre-set extendable fire extinguishing rod.

[0004] The utility model provides a pre-set extension fire extinguishing rod, comprising a nozzle, a connecting tube and an ejecting tube, wherein the axis of the connecting tube and the axis of the ejecting tube are coincident, and the diameters are successively reduced;

[0005] One end of the connecting tube is detachably connected to the nozzle, and the inner wall of the other end is slidably connected to the outer wall of one end of the ejecting tube, and the other end of the ejecting tube is sealed;

[0006] The side walls of the connecting tube and the ejecting tube are both provided with a plurality of spray holes.

[0007] Preferably, it also includes an extension tube, which is located between the connecting tube and the ejecting tube, and the outer wall of one end of the extension tube is slidably connected to the inner wall of the connecting tube, and the inner wall of the other end of the extension tube is slidably connected to the outer wall of the ejecting tube, and the side wall of the extension tube is provided with multiple groups of spray holes.

[0008] Preferably, the extension tubes are provided with at least two groups and their diameters decrease successively, the inner wall of the extension tube with a larger diameter in two adjacent groups of extension tubes is slidably connected to the outer wall of the extension tube with a smaller diameter, the outer wall of the extension tube with the largest diameter is slidably connected to the inner wall of the connecting tube, the inner wall of the extension tube with the smallest diameter is slidably connected to the outer wall of the ejection tube, and the side walls of each group of the extension tubes are provided with multiple groups of spray holes.

[0009] Preferably, the spray holes on the connecting tube and the spray holes on the extending tube are staggered, and the spray holes on the extending tube and the spray holes on the ejecting tube are staggered;

[0010] When multiple groups of extension tubes are provided, the spray holes on two adjacent groups of extension tubes are staggeredly distributed.

[0011] Preferably, the connecting tube, the extending tube and the ejecting tube have the same length, the ejecting tube can be retracted into the extending tube, and the extending tube can be retracted into the connecting tube.

[0012] Preferably, the connecting tube is threadably connected to the nozzle via a thread.

[0013] Preferably, the inner walls of the connecting tube and the extending tube are both provided with guide grooves, the outer walls of the extending tube and the ejecting tube are both connected with keys, the guide groove of the connecting tube is engaged with the key of the extending tube, and the guide groove of the extending tube is engaged with the key of the ejecting tube.

[0014] Preferably, the tails of the extension tube and the ejection tube are both connected with rubber rings.

[0015] In the utility model, a pre-installed extended fire extinguishing rod is proposed, and the nozzle is pre-installed at a designated position, and the fire detection tube of the fire extinguisher detects the fire situation. When a fire occurs, the fire detection tube is detonated, the valve is opened, and the fire extinguishing agent can be sprayed from the storage bottle of the fire extinguisher through the nozzle;

[0016] When a fire does not occur, the pre-installed connecting tube, extension tube and ejector tube are retracted and will not take up too much space. When a fire occurs, the fire extinguishing agent will push the ejector tube out, the ejector tube will extend out of the extension tube, the extension tube will extend out of the connecting tube, and then the fire extinguishing agent will be sprayed out from the side walls of the connecting tube, extension tube and ejector tube.

[0017] The original single-point spraying method of fire extinguishing has been changed to multi-point spraying of fire extinguishing agent from the side wall, extending into the interior of the layered circuit components, increasing the spray periphery, expanding the spray area, and being able to extinguish fire more efficiently.

[0018] The telescopic extension tube and the ejection tube can further expand the spraying range and reduce the occupied space.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model during installation.

[0021] Figure 2 It is a structural schematic diagram of the utility model.

[0022] Figure 3 It is a schematic diagram of the structure of the utility model when it is contracted.

[0023] Figure 4 It is a structural schematic diagram of the ejector tube in the utility model.

[0024] Figure 5 It is a side view of the extension tube in the utility model.

[0025] Explanation of the numbers in the figure: 1. connecting tube; 2. ejector tube; 3. extension tube; 4. nozzle; 5. key; 6. guide groove; 7. spray hole; 8. rubber ring. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] like Figure 1-Figure 5 A pre-set extension fire extinguishing rod shown includes a nozzle 4, a connecting tube 1 and an ejector tube 2, wherein the axis of the connecting tube 1 and the axis of the ejector tube 2 coincide with each other, and the diameters decrease successively;

[0028] One end of the connecting tube 1 is detachably connected to the nozzle 4, and the inner wall of the other end is slidably connected to the outer wall of one end of the ejecting tube 2, and the other end of the ejecting tube 2 is sealed;

[0029] The side walls of the connecting tube 1 and the ejecting tube 2 are both provided with a plurality of spray holes 7 .

[0030] Preferably, it also includes an extension tube 3, which is located between the connecting tube 1 and the ejecting tube 2, and the outer wall of one end of the extension tube 3 is slidably connected to the inner wall of the connecting tube 1, and the inner wall of the other end of the extension tube 3 is slidably connected to the outer wall of the ejecting tube 2, and the side wall of the extension tube 3 is provided with multiple groups of spray holes 7.

[0031] Preferably, the extension tube 3 is provided with at least two groups and the diameters decrease successively, the inner wall of the extension tube 3 with a larger diameter in two adjacent groups of extension tubes 3 is slidably connected to the outer wall of the extension tube 3 with a smaller diameter, the outer wall of the extension tube 3 with the largest diameter is slidably connected to the inner wall of the connecting tube 1, and the inner wall of the extension tube 3 with the smallest diameter is slidably connected to the outer wall of the ejection tube 2, and the side wall of each group of the extension tube 3 is provided with multiple groups of spray holes 7.

[0032] Preferably, the spray holes 7 on the connecting tube 1 and the spray holes 7 on the extension tube 3 are staggered, and the spray holes 7 on the extension tube 3 and the spray holes 7 on the ejection tube 2 are staggered;

[0033] When multiple groups of extension tubes 3 are provided, the spray holes 7 on two adjacent groups of extension tubes 3 are staggeredly distributed.

[0034] In some layered circuit structures, when a fire occurs, it is difficult for the fire extinguishing agent sprayed at a single point to cover the entire area, and the fire extinguishing efficiency is low.

[0035] The present application pre-installs the nozzle 4 at a designated position, and the fire detection tube of the fire extinguisher detects the fire. When a fire occurs, the fire detection tube is detonated, the valve is opened, and the fire extinguishing agent can be sprayed from the storage bottle of the fire extinguisher through the nozzle 4;

[0036] When a fire does not occur, the preset connecting tube 1, extension tube 3 and ejector tube 2 are retracted and will not take up too much space. When a fire occurs, the fire extinguishing agent will push out the ejector tube 2, the ejector tube 2 will extend out of the extension tube 3, the extension tube 3 will extend out of the connecting tube 1, and then the fire extinguishing agent will be sprayed out from the side walls of the connecting tube 1, extension tube 3 and ejector tube 2.

[0037] The original single-point spraying method of the fire extinguisher has been changed to multi-point spraying of the fire extinguishing agent from the side wall, which increases the spray periphery and the spraying area, and can extinguish fires more efficiently.

[0038] The deployment of the extension tube 3 and the ejection tube 2 can further expand the spraying range.

[0039] The staggered spray holes 7 can achieve a sealing effect and ensure the pressure, making it easier for the fire extinguishing agent to flush open the ejection tube 2 and facilitate the extension of the ejection tube 2 and the extension tube 3.

[0040] Preferably, the connecting tube 1 , the extending tube 3 and the ejecting tube 2 are of the same length, the ejecting tube 2 can be retracted into the extending tube 3 , and the extending tube 3 can be retracted into the connecting tube 1 .

[0041] Preferably, the connecting tube 1 is threadably connected to the nozzle 4 via threads, so that the connecting tube 1 can be easily installed.

[0042] Preferably, the inner walls of the connecting tube 1 and the extending tube 3 are both provided with guide grooves 6, the outer walls of the extending tube 3 and the outer walls of the ejecting tube 2 are both connected with keys 5, the guide groove 6 of the connecting tube 1 is engaged with the key 5 of the extending tube 3, and the guide groove 6 of the extending tube 3 is engaged with the key 5 of the ejecting tube 2.

[0043] Preferably, the tails of the extension tube 3 and the ejection tube 2 are both connected with rubber rings 8 .

[0044] The guide groove 6 can limit the key 5 and play a guiding function, and the rubber ring 8 can enhance the sealing effect to prevent the fire extinguishing agent from leaking out of the gap.

[0045] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a 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. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-installed extendable fire extinguishing rod, comprising a nozzle (4), characterized in that: It also comprises a connecting tube (1) and an ejecting tube (2), wherein the axis of the connecting tube (1) and the axis of the ejecting tube (2) are coincident, and the diameters of the connecting tube (1) and the ejecting tube (2) decrease successively; One end of the connecting tube (1) is detachably connected to the nozzle (4), and the inner wall of the other end is slidably connected to the outer wall of one end of the ejection tube (2), and the other end of the ejection tube (2) is sealed; The side walls of the connecting tube (1) and the ejecting tube (2) are both provided with a plurality of groups of spray holes (7).

2. A pre-installed extendable fire extinguishing rod according to claim 1, characterized in that: It also includes an extension tube (3), the extension tube (3) being located between the connecting tube (1) and the ejecting tube (2), the outer wall of one end of the extension tube (3) being slidably connected to the inner wall of the connecting tube (1), and the inner wall of the other end of the extension tube (3) being slidably connected to the outer wall of the ejecting tube (2), and the side wall of the extension tube (3) being provided with a plurality of groups of spray holes (7).

3. A pre-installed extendable fire extinguishing rod according to claim 2, characterized in that: The extension tubes (3) are provided with at least two groups and their diameters decrease successively. The inner wall of the extension tube (3) with a larger diameter in two adjacent groups of extension tubes (3) is slidably connected to the outer wall of the extension tube (3) with a smaller diameter, the outer wall of the extension tube (3) with the largest diameter is slidably connected to the inner wall of the connecting tube (1), and the inner wall of the extension tube (3) with the smallest diameter is slidably connected to the outer wall of the ejection tube (2). The side wall of each group of the extension tubes (3) is provided with a plurality of groups of spray holes (7).

4. A pre-installed extendable fire extinguishing rod according to claim 3, characterized in that: The spray holes (7) on the connecting tube (1) and the spray holes (7) on the extension tube (3) are arranged in a staggered manner, and the spray holes (7) on the extension tube (3) and the spray holes (7) on the ejection tube (2) are arranged in a staggered manner; When multiple groups of extension tubes (3) are provided, the spray holes (7) on two adjacent groups of extension tubes (3) are staggeredly distributed.

5. The pre-installed extendable fire extinguishing rod according to claim 1, characterized in that: The connecting tube (1), the extending tube (3) and the ejecting tube (2) are of the same length; the ejecting tube (2) can be retracted into the extending tube (3), and the extending tube (3) can be retracted into the connecting tube (1).

6. The pre-installed extendable fire extinguishing rod according to claim 1, characterized in that: The connecting tube (1) is threadably connected to the nozzle (4) via a thread.

7. The pre-installed extendable fire extinguishing rod according to claim 1, characterized in that: The inner walls of the connecting tube (1) and the extension tube (3) are both provided with guide grooves (6), and the outer walls of the extension tube (3) and the outer walls of the ejection tube (2) are both connected with latches (5). The guide groove (6) of the connecting tube (1) is latched with the latches (5) of the extension tube (3), and the guide groove (6) of the extension tube (3) is latched with the latches (5) of the ejection tube (2).

8. The pre-installed extendable fire extinguishing rod according to claim 2, characterized in that: The tails of the extension tube (3) and the ejection tube (2) are both connected with rubber rings (8).

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