Initial fire suppression device

Abstract

The utility model discloses an initial fire extinguishing device, and belongs to the technical field of fire-fighting instruments. The utility model aims to provide an initial fire extinguishing tool which has an obvious fire extinguishing effect at the initial stage of a fire, is convenient to use and is particularly suitable for families and small places. According to the technical scheme, the front end of a box body is open, a box cover is connected to the box body, a water hose is contained in the box body, one end of the water hose is communicated with the water outlet end of a water inlet pipe, the other end of the water hose is communicated with the water inlet end of a water gun, and the water inlet pipe and the water gun are installed on the outer sides of the two opposite side walls of the box body respectively. The water outlet end of the water inlet pipe and the water inlet end of the water gun extend into the box body and are communicated with the water hose. And a manual valve switch is mounted on the water inlet pipe. A stop valve is installed on the water inlet pipe, a valve rod of the stop valve extends into the box body, the water hose is tightly contained in the box body after being folded in sequence from top to bottom, and the water hose is tightly pressed on the valve rod of the stop valve to enable the stop valve to be closed. Aiming at an initial fire disaster, the fire extinguishing device can conveniently, rapidly and continuously spray water to extinguish the fire disaster.

Description

Technical Field

[0001] The utility model discloses an initial fire extinguishing device, which belongs to the technical field of fire fighting equipment. Background Art

[0002] With the increasing use of fire and electricity in modern homes and small spaces, fires are becoming increasingly frequent and damaging. Once an indoor fire breaks out, it's easy for people present to panic, lack proper firefighting equipment, or fail to extinguish the initial flames in a timely manner. These factors can ultimately lead to significant loss of life and property, and potentially fatalities.

[0003] A large number of households do not have fire extinguishers. The reasons for this are, firstly, a lack of safety awareness; secondly, the fact that ordinary dry powder fire extinguishers can degrade over time due to caking or insufficient pressure, requiring regular inspections, which people find cumbersome or forgetful. Furthermore, they are difficult to store, require complex usage, and are inconvenient. However, from a safety perspective, having a fire extinguisher in the home is essential. Once a fire breaks out, swatting or running water from the tap won't quickly, effectively, or consistently extinguish the fire, potentially causing it to spread and cause economic losses and casualties.

[0004] There are many fire safety hazards in the "nine small" places, such as primary schools or kindergartens, small hospitals, small shops, small restaurants, small hotels, small singing and dancing entertainment venues, small Internet cafes, small beauty and bathing places, and small production and processing enterprises. In addition, some places with a large number of people will cause heavy casualties once a fire occurs. These places also need a device that is easy to use, fast and sustainable in discharging water to extinguish fires. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an initial fire extinguishing device, which has a good fire extinguishing effect in the early stage of fire and is easy to use and operate, and is suitable for use in homes or other small places.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: an initial fire extinguishing device, comprising a box body, a box cover, a water inlet pipe, a water gun and a water hose. The front end of the box body is open, the box cover is connected to the box body, and a water hose is stored inside the box body. One end of the water hose is connected to the water outlet end of the water inlet pipe, and the other end is connected to the water inlet end of the water gun.

[0007] Furthermore, the water inlet pipe and the water gun are respectively installed on the outside of two opposite side walls of the box body, and the water outlet end of the water inlet pipe and the water inlet end of the water gun are both extended into the box body and communicated with the water hose.

[0008] Furthermore, a manual valve switch for controlling the water flow is installed on the water inlet pipe.

[0009] Furthermore, a stop valve for controlling water flow is installed on the water inlet pipe, the valve stem of the stop valve extends into the interior of the box, the water hose is folded up and down in sequence and tightly stored in the box, and the water hose is pressed tightly against the valve stem of the stop valve to close the stop valve.

[0010] Furthermore, the stop valve includes a valve body, a valve cover, a valve stem, a valve disc and a compression spring. The valve cover is connected to the top opening of the valve body, the lower end of the valve stem passes through the valve cover and is connected to the valve disc, and a compression spring is arranged between the flange at the top of the valve stem and the valve cover.

[0011] Furthermore, the water gun includes a gun body and a handle, the handle passes through a through hole on the box body and is tightly pressed on the water hose, and the handle faces the valve stem of the stop valve.

[0012] Furthermore, the water gun is detachably connected to the side wall of the box.

[0013] Furthermore, the water gun is a multifunctional fire-fighting water gun.

[0014] Furthermore, a booster pump is installed on the water inlet pipe.

[0015] Furthermore, the box is hung or embedded in the wall, and the water inlet pipe is connected to the tap water pipe or to the indoor fire hydrant pipe network.

[0016] The initial fire refers to the initial stage when the fire has just occurred. The characteristics of the fire at this stage are that the burning area of ​​the burning material is small, the flame is not high, the radiant heat is not strong, and the fire develops relatively slowly. It is the best time to extinguish the fire.

[0017] Compared with the prior art, the present invention has the following beneficial effects.

[0018] 1. When the utility model needs to extinguish a fire, you only need to open the manual valve switch, drag the water gun to the fire point, and continuously spray water to extinguish the fire. It has a simple structure and is easy to use and operate. It can be operated quickly without professional training and drills. The fool-proof operation method allows anyone with mobility to quickly take fire-fighting actions, which can effectively prevent small fires from killing people.

[0019] 2. The utility model is equipped with a manual valve switch and a stop valve dual switch, which reduces the probability of accidental water spraying while being easy to use and has high safety.

[0020] 3. The water hose in the utility model is folded and stored in the box in an upper and lower order. During the dragging process, it can be quickly stretched in order without looping or twisting to affect the use.

[0021] 4. The utility model can be wall-mounted or embedded, and does not require occupying the ground, special storage or regular maintenance, saving space and money.

[0022] In short, the present invention is specially developed for initial fires and is particularly suitable for use in homes or other small places. In the initial stage of a fire, once a fire is discovered, the person opens the manual valve switch and then pulls out the water gun. The box cover automatically falls off as the water gun is pulled out, and the water hose in the box quickly spreads out along the direction of the person's running under the dragging force of the water gun. The stop valve quickly opens automatically when it loses pressure, and the booster pump switch can be linked with the stop valve to start the booster pump, thereby increasing the water pressure in the water inlet pipe. The water flows along the water hose and is ejected through the nozzle of the water gun. The water gun can spray out direct current jets, blooming jets and mist jets. The person can choose different jets to deal with different fires, which can quickly and conveniently put out fires and effectively avoid the expansion of property losses and deaths from small fires. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a structural diagram of Example 1 of the present utility model.

[0025] Figure 2 This is a schematic diagram of the appearance of the first embodiment of the present invention.

[0026] Figure 3 It is a structural diagram of the stop valve in the utility model.

[0027] Figure 4 This is a structural diagram of the second embodiment of the present utility model.

[0028] In the figure: 1 is a box body, 2 is a box cover, 3 is a water inlet pipe, 4 is a water gun, 41 is a gun body, 42 is a handle, 5 is a water hose, 6 is a manual valve switch, 7 is a stop valve, 71 is a valve body, 72 is a valve cover, 73 is a valve stem, 74 is a valve disc, 75 is a compression spring, and 8 is a booster pump. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0031] The present utility model provides the following embodiments.

[0032] Example 1

[0033] like Figure 1 、 Figure 2 As shown, the initial fire extinguishing device of the present invention includes a box body 1, a box cover 2, a water inlet pipe 3, a water gun 4 and a water hose 5. The front end of the box body 1 is open, the box cover 2 is connected to the box body 1, and a water hose 5 is stored inside the box body 1. One end of the water hose 5 is connected to the water outlet end of the water inlet pipe 3, and the other end is connected to the water inlet end of the water gun 4.

[0034] The water inlet pipe 3 and the water gun 4 are respectively installed on the outside of two opposite side walls of the box body 1. The water outlet end of the water inlet pipe 3 and the water inlet end of the water gun 4 both extend into the box body 1 and are connected with the water hose 5.

[0035] In the above structure, the box cover 2 is snap-connected to the box body 1. When in use, you only need to pull the water gun 4 with a little force to destroy the snap-connection between the box cover 2 and the box body 1, so that the box cover 2 falls off. A spring can be added to assist the box cover 2 in falling off.

[0036] The water inlet pipe 3 is provided with a manual valve switch 6 for controlling the water flow.

[0037] The manual valve switch 6 is a ball valve.

[0038] The water inlet pipe 3 is equipped with a shut-off valve 7 for controlling water flow. The shut-off valve 7 is mounted vertically, and its stem 73 extends into the interior of the housing 1. The water hose 5 is folded vertically and tightly stored within the housing 1. The hose 5 presses against the stem 73 of the shut-off valve 7, closing the shut-off valve 7. The folded and tightly arranged hose 5 within the housing 1 ensures that it presses against the stem 73 of the shut-off valve 7, maintaining the shut-off valve 7 closed. Furthermore, the hose 5 folds vertically within the housing 1, allowing it to be rapidly extended in sequence with the water gun 4 during use. During this process, the hose 5 does not loop or twist, which would otherwise affect the speed of use.

[0039] like Figure 3 As shown, the stop valve 7 includes a valve body 71, a valve cover 72, a valve stem 73, a valve disc 74, and a compression spring 75. The valve cover 72 is connected to the top opening of the valve body 71. The lower end of the valve stem 73 passes through the valve cover 72 and is connected to the valve disc 74. A compression spring 75 is provided between the flange at the top of the valve stem 73 and the valve cover 72. When it is necessary to extinguish a fire, the water hose 5 is pulled out, the valve stem 73 of the stop valve 7 pops up, and the stop valve 7 is opened.

[0040] The installation direction of the stop valve 7 is low inlet and high outlet.

[0041] The opening and closing of the stop valve 7 is controlled by the loosening and tightening of the valve stem 73 by the water hose 5, thereby realizing the continuous closing of the stop valve 7 when idle and the automatic opening of the stop valve 7 when in use.

[0042] In the utility model, the manual valve switch 6 and the stop valve 7 are provided with dual switches, which can prevent the manual valve switch 6 from being opened by mistake or from spraying water by mistake after failure, and can also prevent the water hose 5 from being pulled out by mistake after spraying water by mistake, and has good safety.

[0043] The water gun 4 includes a gun body 41 and a handle 42. The handle 42 passes through the through hole on the box body 1 and is pressed against the water hose 5, and the handle 42 is directly opposite the valve stem 73 of the stop valve 7. The handle 42 presses the water hose 5, which plays an auxiliary pressing role on the valve stem 73 of the stop valve 7, so that the stop valve 7 is better kept in the closed state.

[0044] The water gun 4 is detachably connected to the side wall of the box body 1 .

[0045] Described water gun 4 is a multifunctional fire-fighting water gun. It can spray direct current jet, blooming jet, mist jet etc., has good maneuverability, and is highly adaptable to the fire scene.

[0046] The box body 1 is hung or embedded on the wall, and the water inlet pipe 3 is connected to the tap water pipe.

[0047] The utility model can also be appropriately enlarged so that the water inlet pipe 3 is connected to the indoor fire hydrant network, replacing the existing indoor fire hydrant. Compared with the existing indoor fire hydrant, the operation is faster and more efficient. In this case, the diameter of the hose 5 is preferably 65mm, the water gun 4 is selected to be a correspondingly larger model, and the stop valve 7 can also serve as the start switch of the indoor fire hydrant pump.

[0048] The utility model does not distinguish between left and right, and the positions of the water inlet pipe 3 and the water gun 4 can be swapped without affecting the use.

[0049] When the utility model is used for fire fighting inside a home, the diameter of the hose 5 can be similar to the diameter of the household water pipe, which is more effective, and the water gun 4 can be selected to be a smaller model. The length of the hose 5 can be 8-20m, and can be made into different specifications according to the size of the indoor area.

[0050] Example 2

[0051] like Figure 4 As shown, when the water pressure in the home is insufficient or to achieve a better fire extinguishing effect, a booster pump 8 can be installed on the water inlet pipe 3 to ensure the flow rate and jet length at the nozzle of the water gun 4. The booster pump 8 can be linked with the stop valve 7. When the stop valve 7 automatically opens, the booster pump 8 is controlled to start, which is more convenient to use.

[0052] The other structures are the same as those in the first embodiment.

[0053] The utility model is particularly suitable for household fires and its method of use is as follows.

[0054] After a fire breaks out, the perpetrator quickly reaches the location of the utility model, opens the manual valve switch 6 with one hand, and grabs the water gun 4 with the other hand, pulling it out and slightly rotating it. This pries open the box cover 2, then drags the hose 5 out of the box 1. Holding the water gun 4, the perpetrator advances toward the fire area. The hose 5 unfurls in the direction of the perpetrator's running. The shutoff valve 7 automatically opens upon loss of pressure, activating the booster pump 8. Water is rapidly injected into the hose 5 and ejected through the water gun 4 to extinguish the fire. The water gun 4 can select a direct stream, a blooming stream, or a spray jet, depending on the type of fire. After the fire is extinguished, the perpetrator returns to close the manual valve switch 6. This utility model is extremely easy to operate, practically foolproof, and ensures a fast and effective response to fire detection.

[0055] After the utility model is used, it needs to be replaced as a whole. The used utility model needs to be inspected, repaired and restored by professionals. The water hose 5 is folded up and down and stored in the box. After storage, it is necessary to ensure that the valve stem 73 of the stop valve 7 is pressed down to keep the stop valve 7 closed so that it can be used for future use.

[0056] The following calculation is performed when the utility model is used for indoor fire extinguishing. This calculation is only a simple example calculation and does not limit the utility model. The specific data involved, such as the flow rate at the faucet, the inner diameter of the water hose 5 and the reduction value of the flow rate, the influence of the water gun nozzle on the flow rate, etc., will vary according to actual conditions.

[0057] 1. The flow rate at a household faucet is affected by water pressure and faucet model. The flow rate is generally between 0.2-0.6 liters / second. 0.2 liters / second, 0.4 liters / second, and 0.6 liters / second are used for calculation respectively.

[0058] 2. The water hose 5 is a high-quality lined water hose with an inner diameter d1 of 20 mm and a length of 8-20 m.

[0059] A 20-meter water hose 5 will increase a certain amount of resistance, resulting in a decrease in flow, but the impact on flow will not be particularly large. Generally speaking, a 20-meter water pipe will cause a 10%-20% decrease in flow.

[0060] When the utility model is used in a household, the length of the water hose 5 generally does not exceed 20 meters. Calculated based on a 15% flow rate reduction, after 0.2 liters / second, 0.4 liters / second, and 0.6 liters / second are reduced by 15% respectively, the flow rate Q at the water outlet of the water hose 5 corresponds to: 0.18 liters / second, 0.36 liters / second, and 0.54 liters / second.

[0061] According to firefighting theory, in the early stage of a fire, 0.12-0.2L / s of water is needed to extinguish the flames per square meter. In the early stage of a fire in a home or small place, the fire load is small, the combustion speed is slow, and the radiation spread is slow. In this way, the water consumption at the fire scene is 0.12L / s / m 2 Therefore, using 0.18 / 0.12 and 0.54 / 0.12, we can know that the utility model can be used to extinguish the burning area of ​​1.5m in the home. 2 -4.5m 2 flame.

[0062] 3. The flow velocity v1 at the outlet of hose 5 can be calculated by the following formula:

[0063]

[0064] Among them, Q is the flow rate at the outlet of hose 5, which has three conditions: 0.18 L / s, 0.36 L / s, and 0.54 L / s;

[0065] d1 is the inner diameter of the water hose 5, which is 20 mm;

[0066] Calculation shows that the flow velocity v1 at the outlet of water hose 5 is: 0.57m / s, 1.14m / s, 1.71m / s.

[0067] 4. Calculate the diameter of the nozzle of the water gun 4.

[0068] During the fire-fighting process, there are certain requirements for the range of the water gun 4, and the safety distance of the personnel must be guaranteed. However, under the condition of a certain flow rate, the longer the range, the smaller the diameter of the water gun nozzle must be. If the diameter of the water gun nozzle is too small, it will have a greater impact on the flow rate and water pressure. Therefore, it is necessary to achieve a balance between the range and the diameter of the water gun nozzle. The diameter of the water gun nozzle is calculated based on the two cases of range requirements of 10m and 5m. In the calculation process, it is assumed that the flow at the outlet of the water hose 5 is the flow at the water gun nozzle.

[0069] In fire hose or fire hose applications, the relationship between flow velocity at the nozzle and vertical range can be described by the following equation:

[0070] v2 2 =2gh

[0071] The conversion is:

[0072]

[0073] Among them, v2 is the flow velocity at the nozzle of the water gun;

[0074] g is the acceleration due to gravity;

[0075] h is the vertical range;

[0076] When h is 10m, the flow velocity at the nozzle of the water gun is calculated to be v2 = 14m / s;

[0077] When h is 5m, the flow velocity at the nozzle of the water gun is calculated to be v2 = 9.9m / s;

[0078] The flow rate can be described by the following formula

[0079] Q=Sv

[0080] Where: Q is the flow rate;

[0081] S is the cross-sectional area of ​​the flow;

[0082] v is the flow velocity;

[0083] The relationship between the flow velocity v2 at the nozzle of the water gun and the diameter d2 of the water gun nozzle can be described by the following formula:

[0084]

[0085] Combined formula Can export:

[0086] v1 / v2=(d2 / d1) 2

[0087] It can be concluded that the water gun nozzle diameter d2 can be calculated by the following formula:

[0088] d2 2 =(v1 / v2)d1 2 ;

[0089] Among them, v1 is the flow velocity at the outlet of water hose 5, which has three cases: 0.57m / s, 1.14m / s, and 1.71m / s;

[0090] d1 is the inner diameter of the water hose 5, which is 20 mm;

[0091] (1) When the required range is 10m, the calculation shows that:

[0092] When the flow velocity v1 at the outlet of the water hose 5 is 0.57m / s, 1.14m / s, and 1.71m / s respectively, the water gun nozzle diameter d2 is 4.03mm, 5.71mm, and 6.99mm correspondingly.

[0093] (2) When the required range is 5m, the calculation shows that:

[0094] When the flow velocity v1 at the outlet of the water hose 5 is 0.57m / s, 1.14m / s, and 1.71m / s respectively, the water gun nozzle diameter d2 is 4.8mm, 6.79mm, and 8.31mm correspondingly.

[0095] As can be seen from the above, if the flow rate at the tap is low, at 0.2 liters / second, the range requirement is 5 meters, and the nozzle diameter of the water gun is 4.8mm. If the flow rate at the tap is high, the range requirement can be greater than 5 meters, and the nozzle diameter of the water gun can be increased accordingly. The maximum nozzle diameter can be 8.31mm. In this case, the flow rate at the tap is required to reach 0.6 liters / second, and the range requirement is 5 meters.

[0096] 5. If you want a better fire extinguishing effect or increase the caliber of the water gun, you can install a booster pump 8 on the water inlet pipe 3. After installing the booster pump 8, the flow at the faucet will increase, and accordingly, the flow at the water outlet of the water hose 5 will also increase. According to the 0.12-0.2L / s of water required to extinguish each square meter of flame, the maximum applicable flame area can be calculated, and the value of the corresponding water gun nozzle caliber can also be calculated using the above process.

[0097] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. Initial fire extinguishing device, characterized by: The utility model comprises a box body (1), a box cover (2), a water inlet pipe (3), a water gun (4) and a water hose (5); the front end of the box body (1) is open, the box cover (2) is connected to the box body (1), and the box body (1) contains a water hose (5); one end of the water hose (5) is connected to the water outlet end of the water inlet pipe (3), and the other end is connected to the water inlet end of the water gun (4).

2. The initial fire extinguishing device according to claim 1, characterized in that: The water inlet pipe (3) and the water gun (4) are respectively installed on the outside of two opposite side walls of the box body (1), and the water outlet end of the water inlet pipe (3) and the water inlet end of the water gun (4) both extend into the box body (1) and communicate with the water hose (5).

3. The initial fire extinguishing device according to claim 1 or 2, characterized in that: The water inlet pipe (3) is provided with a manual valve switch (6) for controlling the water flow.

4. The initial fire extinguishing device according to claim 1 or 2, characterized in that: A stop valve (7) for controlling the water flow is installed on the water inlet pipe (3), and the valve stem (73) of the stop valve (7) extends into the interior of the box (1). The water hose (5) is folded up and down in sequence and then tightly stored in the box (1). The water hose (5) is pressed tightly against the valve stem (73) of the stop valve (7) to close the stop valve (7).

5. The initial fire extinguishing device according to claim 4, characterized in that: The stop valve (7) comprises a valve body (71), a valve cover (72), a valve stem (73), a valve disc (74) and a compression spring (75). The valve cover (72) is connected to the top opening of the valve body (71). The lower end of the valve stem (73) passes through the valve cover (72) and is connected to the valve disc (74). A compression spring (75) is provided between the flange at the top end of the valve stem (73) and the valve cover (72).

6. The initial fire extinguishing device according to claim 4, characterized in that: The water gun (4) comprises a gun body (41) and a handle (42). The handle (42) passes through a through hole on the box body (1) and is pressed tightly against the water hose (5). The handle (42) faces the valve stem (73) of the stop valve (7).

7. The initial fire extinguishing device according to claim 1 or 2, characterized in that: The water gun (4) is detachably connected to the side wall of the box (1).

8. The initial fire extinguishing device according to claim 1 or 2, characterized in that: The water gun (4) is a multifunctional fire-fighting water gun.

9. The initial fire extinguishing device according to claim 1 or 2, characterized in that: A booster pump (8) is installed on the water inlet pipe (3).

10. The initial fire extinguishing device according to claim 1 or 2, characterized in that: The box (1) is hung or embedded on a wall, and the water inlet pipe (3) is connected to a tap water pipe or to an indoor fire hydrant pipe network.

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