Water discharge device

The water-discharging device with a reel and wheel system simplifies hose deployment and enables unmanned water discharge, addressing the challenges of manual hose handling and manned water spraying in fire scenarios, particularly in tunnels.

JP7758695B2Active Publication Date: 2025-10-22NOHMI BOSAI LTD
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Patent Information

Application Number
JP2023028181
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2023-02-27
Publication Date
2025-10-22
Estimated Expiration
2043-02-27

AI Technical Summary

Technical Problem

Existing fire hydrant systems require manual hose deployment and filling, increasing workload with distance, and may necessitate manned water spraying, especially in challenging environments like tunnels, where unmanned water discharge is desirable to prevent secondary disasters.

Method used

A water-discharging device with a reel and wheels that allows easy hose deployment and unmanned operation, featuring a nozzle adjustably attached to a wheel portion, an arm for fixing, and a slide mechanism to stabilize the device, enabling unmanned water discharge in desired directions.

Benefits of technology

Facilitates easy hose deployment and allows unmanned water discharge, reducing operator workload and enabling continuous, directed water spraying even in hazardous conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a water discharge device capable of easily performing hose extension work and performing unmanned water discharge as needed.SOLUTION: A water discharge device includes a water discharge device body and a hose. The water discharge device body includes a winding frame, and a nozzle attached to the winding frame. The winding frame includes a first wheel part and a second wheel part opposed to each other, and a connection part for connecting the first wheel part and the second wheel part together. The nozzle is attached to the first wheel part, and the hose is wound around the connection part between the first wheel part and the second wheel part. One end of the hose is connected to the nozzle while the other end of the hose can be connected to a fire hydrant. In the state that the other end of the hose is connected to the fire hydrant, water is supplied from the fire hydrant to the nozzle through the hose so that water can be discharged from the nozzle.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to a water discharge device applied to a fire hydrant. [Background technology]

[0002] Even when a single person is performing firefighting activities, there is a fire hydrant device that allows the operator holding the nozzle to quickly start moving toward the destination when the hose is empty, and then switch the hydrant valve to the open state and discharge water (see, for example, Patent Document 1).

[0003] In particular, Patent Document 1 discloses a fire hydrant device that can adjust the water discharge pressure by pressing a fire hydrant valve open button provided on a fire extinguishing nozzle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-064373 Summary of the Invention [Problem to be solved by the invention]

[0005] In Patent Document 1, an operator can transport the hose to the vicinity of the fire source when it is empty and not filled with water. However, even if the hose is empty, the operator must bring (carry) the hose stored in the hydrant to the location of the fire source and deploy it. Therefore, the workload of deploying the hose increases as the distance from the hydrant to the location of the fire source increases.

[0006] Furthermore, depending on the location or circumstances of the fire, such as a fire in a tunnel, it may be desirable to perform unmanned water spraying in a fixed direction after the start of water spraying in order to prevent secondary disasters.

[0007] The present invention has been made to solve the above problems, and aims to provide a water-discharging device that allows for easy hose deployment and can discharge water unmanned as needed. [Means for solving the problem]

[0008] The water-discharging device according to the present disclosure comprises a water-discharging device main body and a hose, the water-discharging device main body having a reel and a nozzle attached to the reel, the reel having first and second wheel portions facing each other and a connecting portion connecting the first and second wheel portions, the nozzle attached to the first wheel portion, the hose having one end, the other end, and an unfolding portion connecting the one end and the other end, the unfolding portion being stored between the first and second wheel portions while being wound around the connecting portion, one end of the hose connected to the nozzle, the other end of the hose being connectable to a fire hydrant, when the other end of the hose is connected to the hydrant, the unfolding portion stored while wound around the connecting portion can be unfolded by rotating the reel, and water can be discharged from the nozzle by supplying water from the hydrant through the hose to the nozzle. The water discharge device further includes an arm attached to a setting wheel portion, which is at least one of the first wheel portion and the second wheel portion, and the arm has a grip portion formed at the end thereof, and is provided with a slide mechanism that can adjust the length so that the grip portion acts as a stopper to contact the floor or ground when fixing the water discharge device body at a desired position. It is something. [Effects of the Invention]

[0009] According to the present disclosure, a water-discharging device can be obtained that can easily perform hose deployment work and can discharge water unmanned as needed. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is an explanatory diagram showing the overall configuration of a water-discharging device according to a first embodiment of the present disclosure. [Figure 2] 1 is an explanatory diagram showing a specific configuration of a water-discharging device main body and a hose in a water-discharging device according to a first embodiment of the present disclosure. FIG. [Figure 3] 1 is an explanatory diagram showing a state in which a water-discharging device according to a first embodiment of the present disclosure is fixedly installed near a fire source. [Figure 4] 3 is an explanatory diagram showing a specific configuration of the water-discharging device main body and the hose, which is different from that shown in FIG. 2, in the water-discharging device according to the first embodiment of the present disclosure. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, preferred embodiments of the water-discharging device of the present disclosure will be described with reference to the drawings. The water-discharging device disclosed herein has the technical feature that the hose stored between the first wheel unit and the second wheel unit in a wound state around the connecting part can be easily deployed by transporting it while rotating the wheels, and when performing firefighting work, the nozzle attached to the first wheel unit can be adjusted to the desired angle to discharge water.

[0012] Embodiment 1 1 is an explanatory diagram showing the overall configuration of a water-discharging device according to a first embodiment of the present disclosure. The water-discharging device according to the first embodiment is configured to include a water-discharging device main body 100 and a hose 200. The water-discharging device main body 100 has a reel 110 and a nozzle 120 attached to the reel 110.

[0013] One end of hose 200 is connected to nozzle 120, and the other end can be connected to fire hydrant valve 301 inside fire hydrant 300. Hose 200 is stored in a state wound around reel 110, and is configured to be deployed by rotating reel 110, allowing the hose to be deployed to the location of the fire source.

[0014] The water-discharging device main body 100 equipped with the water-discharging device main body 100 and the hose 200 can normally be configured to be housed in the housing of the fire hydrant 300 with the other end of the hose 200 connected to the hydrant valve 301. Alternatively, the water-discharging device main body 100 equipped with the water-discharging device main body 100 and the hose 200 may be installed outside the fire hydrant 300, and the other end of the hose 200 may be connectable to the hydrant valve 301 as needed.

[0015] 2 is an explanatory diagram showing a specific configuration of the water-discharging apparatus main body 100 and the hose 200 in the water-discharging apparatus according to the first embodiment of the present disclosure. The reel 110 has a first wheel portion 111 and a second wheel portion 112 that face each other, and a connecting portion 113 that connects the first wheel portion 111 and the second wheel portion 112 to each other. The first wheel portion 111 and the second wheel portion 112 are the same size.

[0016] The hose 200 is composed of one end 201, the other end 202, and an unfolding portion 203. The nozzle 120 is attached to the first wheel portion 111 and connected to the one end 201 of the hose 200. Meanwhile, the other end 202 of the hose 200 is connectable to a fire hydrant valve 301 inside the fire hydrant 300.

[0017] Furthermore, the unfolding portion 203 of the hose 200 is wound around the connecting portion 113 between the first wheel portion 111 and the second wheel portion 112. In Figure 2, an example of the order in which the unfolding portions 203 are wound around the connecting portion 113 is shown by assigning numbers 1 to 31 in order from the side closest to the one end 201.

[0018] Here, the sizes of the hose 200 and the wheels, that is, the first wheel portion 111 and the second wheel portion 112 (in the following description, the two wheels will be collectively referred to as wheels), will be explained. The hose 200 used is approximately 20 m long, and the size of the wheels is determined so that when the hose 200 is wound around the connecting portion 113, the entire hose 200 fits within the outer diameter of the wheels. The wheels are also sized to fit within the housing of the fire hydrant 300.

[0019] When the other end 202 of the hose 200 is connected to the fire hydrant valve 301, water is supplied from the fire hydrant valve 301 through the hose 200 to the nozzle 120, thereby enabling water to be discharged from the nozzle 120.

[0020] Nozzle 120 has a rotatable joint 121, which allows the angle of the nozzle to be adjusted relative to first wheel unit 111. Therefore, by adjusting the angle of nozzle 120 relative to first wheel unit 111 by the operator, the direction in which water is discharged from nozzle 120 can be adjusted to a desired direction.

[0021] More specifically, as shown in FIG. 3, when the flat surface 112a of the second wheel portion 112 is placed on the ground or floor, the rotatable joint 121 is configured so that the nozzle 120 can be freely rotated in the vertical direction relative to the fire source.

[0022] 2, an arm 130 is provided which is attached to the first wheel unit 111. The arm 130 can be attached to a set wheel unit which is at least one of the first wheel unit 111 and the second wheel unit 112.

[0023] The arm 130 extends from the central axis C of the setting wheel unit outward beyond the outer periphery of the setting wheel unit in the radial direction of the setting wheel unit. In other words, it has a length greater than the radius of the wheel. Furthermore, the arm 130 is connected to the setting wheel unit via a rotatable joint 131, and is rotatable relative to the setting wheel unit around the central axis C.

[0024] Therefore, the operator can easily unfold the hose 200 that is wound around and stored in the connecting part 113 by gripping the grip part 130a of the arm 130 and rolling the wheels to head towards the destination.

[0025] Furthermore, if the length of gripping portion 130a is increased or a slide mechanism capable of adjusting the length of gripping portion 130a is provided so that the end of gripping portion 130a is in contact with the floor surface when the wheel is placed on the floor, then when performing water discharge operations, gripping portion 130a can be grounded on the ground or the like as a stopper, thereby fixing water discharge device main body 100 in a desired position. Note that, because hose 200 may be deployed while pushing the wheel, arm 130 is not an essential component of the water discharge device according to the first embodiment.

[0026] The water-discharging device of this embodiment 1 is equipped with a first wheel unit 111 and a second wheel unit 112 arranged opposite each other, so that the operator can easily deploy the hose 200 by rotating the reel 110.

[0027] Note that Figure 2 illustrates an example in which the arm 130 is attached to the first wheel unit 111, and in this case, of the pair of side surfaces of the second wheel unit 112, the side surface opposite the first wheel unit can be made into a flat surface 112a.

[0028] As a result, by turning the main body 100 on its side and making the flat surface 112a of the second wheel section 112 the bottom surface, the water-discharging device main body 100 can be fixed in the desired position, and since the wheels are in contact with the floor surface or the like over a wide area, even if water is discharged from the nozzle 120, the water-discharging reaction force can prevent the main body 100 from moving.

[0029] Fig. 3 is an explanatory diagram showing a state in which the water-discharging device according to the first embodiment of the present disclosure is fixed and installed near a fire source. As shown in Fig. 3, the operator moves the reel 110 near the fire source while unfolding the hose 200, and then tilts the reel 110 at a desired position so that the flat surface 112a is the bottom, thereby fixing and installing the reel 110 in a position suitable for fire extinguishing.

[0030] Furthermore, with the reel 110 fixed in place, the operator can adjust the angle of the nozzle 120 relative to the first wheel section 111 using the rotatable joint 121, allowing the operator to continue unmanned water spraying at the fire source while pointing the nozzle 120 in the appropriate direction.

[0031] Fig. 4 is an explanatory diagram showing a specific configuration of the water-discharging device main body 100 and the hose 200 in the water-discharging device according to the first embodiment of the present disclosure, which is different from that shown in Fig. 2. Fig. 2 illustrates a case in which the nozzle 120 is disposed at a position different from the central axis C. In contrast, Fig. 4 illustrates a case in which the nozzle 120 is disposed on the central axis C. As shown in Fig. 4, it is also possible to dispose both the arm 130 and the nozzle 120 on the central axis C.

[0032] As described above, according to embodiment 1, the hose stored in a manner that it is wound around the connecting part between the wheels consisting of the first wheel part and the second wheel part can be easily deployed by transporting it while rotating the wheels, and when performing firefighting work, unmanned water spraying can be continued in the desired direction by adjusting the angle of the nozzle attached to the first wheel part.

[0033] Furthermore, if an arm is provided, the operator can grasp the arm and head towards the destination, easily unfolding the hose stored and wound around the connecting part while approaching the fire source, and when performing water spraying operations, the arm can be used as a stopper to fix the water spraying device body in the desired position.

[0034] Furthermore, if the side surface of one of the wheel portions is configured as a flat surface, the water-discharging device body can be fixed in a desired position by using that flat surface as the bottom surface.

[0035] Therefore, the operator of the fire hydrant can deploy the hose 200 using the wheels to the vicinity of the fire source, then fix the water-discharging device body in the desired position and adjust the angle of the nozzle attached to the first wheel section, thereby allowing the operator to evacuate to a safe location and more reliably perform unmanned water discharge toward the fire source.

[0036] For example, in the case of a fire in a tunnel or a building, even if there is a risk of secondary disaster depending on the location or circumstances of the fire, after quickly moving toward the source of the fire, unmanned water spraying can be continued while keeping the nozzle pointed in the desired direction.

[0037] In this embodiment, the main body has been described as having two wheels, but the two wheels may be combined into one to form a single wheel. In this case, the wheel may be a donut-shaped drum-shaped wheel with a hollowed-out interior, and the hose may be stored inside the drum, and the hose may be deployed while the drum-shaped wheel is carried to the fire site. [Explanation of symbols]

[0038] 100 Water discharge device main body, 110 Reel, 111 First wheel portion, 112 Second wheel portion, 112a Flat surface, 113 Connecting portion, 120 Nozzle, 121 Rotatable joint, 130 Arm, 130a Holding portion, 131 Rotatable joint, 200 Hose, 201 One end portion, 202 Other end portion, 203 Deployment portion, 300 Fire hydrant, 301 Fire hydrant valve.

Claims

1. A water discharge device body; Hose and Equipped with The water discharge device body is A reel and a nozzle attached to the reel; It has The reel comprises: a first wheel portion and a second wheel portion facing each other; a connecting portion connecting the first wheel portion and the second wheel portion to each other; It has the nozzle is attached to the first wheel portion; the hose is configured with one end, the other end, and an unfolding portion connecting the one end and the other end, and is stored between the first wheel portion and the second wheel portion with the unfolding portion wound around the connecting portion, the one end of the hose is connected to the nozzle; The other end of the hose is connectable to a fire hydrant, In a state where the other end of the hose is connected to the fire hydrant, By rotating the reel, the deployment portion that is wound around and stored in the connecting portion can be deployed, Water can be discharged from the nozzle by supplying water from the fire hydrant through the hose to the nozzle, Further, an arm is attached to a setting wheel portion which is at least one of the first wheel portion and the second wheel portion, The arm A grip is formed at the end, A slide mechanism is provided that can adjust the length of the water discharge device body so that the gripping portion can be used as a stopper to contact the floor or ground when the water discharge device body is fixed at a desired position. Water spray device.

2. The size of the wheels of the first wheel portion and the second wheel portion is determined so that the entire hose fits within the outer diameter of the first wheel portion and the second wheel portion, and is sized to fit within the housing of the fire hydrant. The water-discharging device according to claim 1 .

3. The side of the pair of side surfaces of the second wheel section opposite to the first wheel section is flat, and water is discharged from the nozzle with the flat surface of the second wheel section placed on the floor or ground. The water-discharging device according to claim 1 or 2.

Citation Information

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