Flow-adjustable fire sprinkler

Abstract

The utility model relates to the technical field of fire fighting, and provides a flow-adjustable fire sprinkler which saves water sources and avoids damage to light and thin articles, and comprises a connecting pipe and a flow guide block, one end of the flow guide block is arranged at one end of the connecting pipe and communicated with the connecting pipe, and a nozzle communicated with the flow guide block is arranged at the other end of the flow guide block. The flow guide block comprises an elastic inner pipe and a twisting outer ring, the elastic inner pipe is arranged at one end of the connecting pipe and communicated with the connecting pipe, the twisting outer ring is arranged on the elastic inner pipe and arranged outside the elastic inner pipe, and an elastic hard piece is arranged between the inner wall of the twisting outer ring and the outer wall of the elastic inner pipe. The twisting outer ring is twisted clockwise, so that the inner wall of the twisting outer ring extrudes the elastic hard sheet, and the elastic hard sheet vertically extrudes the elastic inner tube to shrink the elastic inner tube.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting, in particular to an adjustable flow type fire fighting nozzle. Background Art

[0002] A fire sprinkler is a nozzle device used for drainage at the end of a fire pipe. When a fire occurs, water flows through the fire pipe and sprays out from the fire sprinkler, spraying water over a wide area at the fire site, thereby reducing the fire or extinguishing the fire. At the same time, the fire scene can be quickly cooled down. Existing fire sprinklers can be quickly installed on fire pipes such as fire hoses or fixed fire pipes, and use water pressure to spray a large range of water or fire extinguishing agents, which can quickly extinguish weaker fires. They are widely used in various industrial sites or residential corridors, greatly improving the fire prevention capabilities of the above scenarios and greatly improving the survival probability of workers or residents in the event of a fire.

[0003] Although the above-mentioned prior art can solve the corresponding technical problems, it still has certain defects: the existing fire sprinkler is directly connected to the fire pipes such as the fire water valve, and the high-pressure water in the fire pipe will be directly sprayed outward quickly. If the fire point is small, the high-pressure water can be quickly sprayed outward to extinguish the fire point, but it is easy to cause a large amount of water waste. At the same time, if the burning object is a relatively thin and easily damaged sheet such as paper or thin cloth, the high-flow high-pressure water is directly sprayed to easily cause large-area penetration and damage to the object, which greatly increases the loss. Utility Model Content

[0004] The utility model aims to provide an adjustable flow fire sprinkler which can save water and avoid damaging light and thin objects in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable flow type fire sprinkler, comprising a connecting pipe and a guide block with one end arranged at one end of the connecting pipe and connected with the connecting pipe, the other end of the guide block is provided with a nozzle connected with the guide block, the guide block comprises an elastic inner tube arranged at one end of the connecting pipe and connected with the connecting pipe, and a twisting outer ring arranged on the elastic inner tube and outside the elastic inner tube, an elastic hard sheet is provided between the inner wall of the twisting outer ring and the outer wall of the elastic inner tube, when the flow rate needs to be reduced, the twisting outer ring is twisted clockwise so that the inner wall of the twisting outer ring squeezes the elastic hard sheet, so that the elastic hard sheet stands upright and squeezes the elastic inner tube to shrink it.

[0006] A further improvement is that a plurality of anti-slip bumps are provided on the outer wall of the twisting outer ring.

[0007] A further improvement is that the nozzle is a conical tube structure.

[0008] A further improvement is that the elastic inner tube includes a deformation tube arranged at one end of the connecting tube and connected to the connecting tube, and a pressure plate arranged on the outer wall of the deformation tube and fixedly connected to the end of the elastic hard plate.

[0009] A further improvement is that the outer wall of the deformation tube is also provided with a plurality of arc-shaped bending grooves.

[0010] A further improvement is that an elastic sheet is embedded in the inner wall of the arc-shaped bending groove.

[0011] A further improvement is that an elastic gasket is also provided on the inner wall of the deformation tube.

[0012] A further improvement is that a plurality of arc-shaped pressure grooves are provided on the inner wall of the deformation tube.

[0013] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: the utility model can twist the outer ring, thereby causing the elastic hard sheet to be twisted and upright at the same time, and then push the elastic inner tube inward, causing the deformed tube to shrink, thereby reducing the flow rate of water flowing through it. When extinguishing a fire point with a smaller fire, it can not only effectively ensure the fire extinguishing effect, but also save water resources. Moreover, if the burning object is a thin sheet-like object, a smaller water pressure can be generated through a lower flow rate to reduce the damage to the burning object, thereby effectively reducing the loss caused by the fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the nozzle of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the front cross section of the guide block of the utility model;

[0017] Figure 3 It is a structural schematic diagram of a front view cross section of the elastic inner tube of the utility model. DETAILED DESCRIPTION

[0018] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0019] See also Figure 1-3As shown, the technical solution adopted in this specific embodiment is: an adjustable flow type fire sprinkler, including a connecting pipe 1 and a guide block 2 with one end arranged at one end of the connecting pipe 1 and connected to the connecting pipe 1, the other end of the guide block 2 is provided with a nozzle 3 connected to the guide block 2, the guide block 2 includes an elastic inner tube 22 arranged at one end of the connecting pipe 1 and connected to the connecting pipe 1, and a twisting outer ring 21 arranged on the elastic inner tube 22 and outside the elastic inner tube 22, the elastic inner tube 22 includes a deformation tube 221 arranged at one end of the connecting pipe 1 and connected to the connecting pipe 1, and a pressure plate 224 arranged on the outer wall of the deformation tube 221 and fixedly connected to the end of the elastic hard plate 23, an elastic hard plate 23 is provided between the inner wall of the twisting outer ring 21 and the outer wall of the elastic inner tube 22, when the flow rate needs to be reduced, the twisting outer ring 21 is twisted clockwise to make the inner wall of the twisting outer ring 21 squeeze the elastic hard plate 23, so that the elastic hard plate 23 stands upright and squeezes the elastic inner tube 22 When in use, the connecting pipe 1 is connected to the fire-fighting pipe, so that the water flow can enter the guide block 2 through the connecting pipe 1, and the water flow can be sprayed out from the nozzle 3 in the specified direction by manually holding the guide block 2 to extinguish the fire. When the flow rate needs to be adjusted, the twisting outer ring 21 is twisted clockwise at this time, so that the twisting outer ring 21 and the elastic hard sheet 23 can be twisted with each other, and then the elastic hard sheet 23 is pressed inwardly under the action of the torque, and then the pressure sheet 224 is transmitted to the deformable tube 221 to make it shrink and deform inward, thereby making the inner cavity space through which the water flow can pass smaller, thereby reducing the flow rate. When extinguishing a fire point with a smaller fire, it can not only effectively ensure the fire extinguishing effect, but also save water resources. Moreover, if the burning object is a thin sheet, it can also reduce the damage to the burning object through a lower flow rate to generate a smaller water pressure, thereby effectively reducing the loss caused by the fire.

[0020] The outer wall of the twisting outer ring 21 is provided with a plurality of anti-slip bumps 24, and in this embodiment, twenty-four are provided, which is beneficial to increase the friction between the hand and the twisting, thereby making the twisting force transmission smoother and preventing slipping;

[0021] The nozzle 3 is a conical tube structure, which is conducive to concentrating the water flow so that the water flow can be sprayed farther;

[0022] The outer wall of the deformation tube 221 is also provided with a plurality of arc-shaped bending grooves 225. In this embodiment, six arc-shaped bending grooves 225 are provided, which is conducive to making the deformation tube 221 twist and deform faster and requiring less force for deformation.

[0023] The inner wall of the arc-shaped bending groove 225 is also embedded with an elastic sheet 226, which is conducive to faster recovery and enhances the strength of the deformation tube 221 to avoid damage caused by internal pressure;

[0024] The inner wall of the deformation tube 221 is also provided with an elastic gasket 222, which is conducive to generating elastic force after being compressed, thereby making the deformation tube 221 recover faster;

[0025] The inner wall of the deformable tube 221 is provided with a plurality of arc-shaped pressure grooves 223. In this embodiment, eight arc-shaped pressure grooves 223 are provided, which is beneficial to increase the contact area generated when water flows through, thereby reducing the unit pressure, thereby reducing the force required to maintain a small flow rate and saving effort in use.

[0026] The working principle of the utility model: when the utility model is used, the connecting pipe 1 is connected to the fire-fighting pipe, so that the water flow can enter the guide block 2 through the connecting pipe 1, and the water flow can be sprayed out from the nozzle 3 in the specified direction by manually holding the guide block 2 to extinguish the fire. When the flow rate needs to be adjusted, the twisting outer ring 21 is twisted clockwise at this time, so that the twisting outer ring 21 and the elastic hard plate 23 can be twisted with each other, and then the elastic hard plate 23 is squeezed inwardly under the action of the torsion force. The pressure plate 224 provided on the outside of the deformation tube 221, and then the pressure plate 224 transmits the pressure to the deformation tube 221 to make it shrink and deform inward, thereby making the inner cavity space that the water flow can pass through smaller, thereby reducing the flow rate. When extinguishing a fire point with a smaller fire, it can not only effectively ensure the fire extinguishing effect, but also save water resources. Moreover, if the burning object is a thin sheet-like object, it can also reduce the damage to the burning object through a lower flow rate. The loss caused by the fire is effectively reduced.

[0027] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above functions of the utility model can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.

[0028] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. An adjustable flow type fire sprinkler, comprising a connecting pipe (1) and a guide block (2) one end of which is arranged at one end of the connecting pipe (1) and is connected to the connecting pipe (1), and the other end of the guide block (2) is provided with a nozzle (3) connected to the guide block (2), characterized in that: The guide block (2) comprises an elastic inner tube (22) arranged at one end of the connecting tube (1) and connected to the connecting tube (1), and a twisting outer ring (21) arranged on the elastic inner tube (22) and arranged outside the elastic inner tube (22). An elastic hard sheet (23) is arranged between the inner wall of the twisting outer ring (21) and the outer wall of the elastic inner tube (22). When it is necessary to reduce the flow rate, the twisting outer ring (21) is twisted clockwise so that the inner wall of the twisting outer ring (21) squeezes the elastic hard sheet (23), so that the elastic hard sheet (23) stands upright and squeezes the elastic inner tube (22) to shrink it.

2. The adjustable flow type fire sprinkler according to claim 1, characterized in that: A plurality of anti-slip bumps (24) are provided on the outer wall of the twisting outer ring (21).

3. The adjustable flow fire sprinkler according to claim 1, characterized in that: The nozzle (3) is a conical tube structure.

4. The adjustable flow type fire sprinkler according to claim 1, characterized in that: The elastic inner tube (22) comprises a deformation tube (221) arranged at one end of the connecting tube (1) and connected to the connecting tube (1), and a pressure plate (224) arranged on the outer wall of the deformation tube (221) and fixedly connected to the end of the elastic hard plate (23).

5. The adjustable flow fire sprinkler according to claim 4, characterized in that: The outer wall of the deformation tube (221) is also provided with a plurality of arc-shaped bending grooves (225).

6. The adjustable flow type fire sprinkler according to claim 5, characterized in that: An elastic sheet (226) is also embedded in the inner wall of the arc-shaped curved groove (225).

7. The adjustable flow fire sprinkler according to claim 4, characterized in that: An elastic gasket (222) is also provided on the inner wall of the deformation tube (221).

8. The adjustable flow type fire sprinkler according to claim 4, characterized in that: The inner wall of the deformation tube (221) is provided with a plurality of arc-shaped pressure grooves (223).

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