Supercharged indoor fire hydrant

Abstract

The utility model discloses a supercharged indoor fire hydrant, and relates to the technical field of fire hydrants. Comprising a control unit and a fire hydrant body, a three-way valve is connected to a pipe body of a water inlet pipe at the bottom of the fire hydrant body and comprises a top valve pipe, a side valve pipe and a bottom valve pipe, and the bottom valve pipe is fixedly communicated with a municipal pipe network. The three-way valve, the first electromagnetic valve, the second electromagnetic valve, the booster water pump and the communicating pipe are arranged, multi-channel connection between a municipal pipe network and the fire hydrant body is achieved through the three-way valve, when pressurization is not needed, the second electromagnetic valve can be closed, the first electromagnetic valve can be opened, and water flow directly enters the fire hydrant body through the top valve pipe; when emergency situations such as fire disasters and needing high-pressure water flow occur, the first electromagnetic valve is closed, the second electromagnetic valve is opened, the booster water pump is started, the water flow is pressurized, and then the high-pressure water flow is conveyed to the fire hose through the water outlet pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to fire hydrant technical field, concretely is a kind of pressurized indoor fire hydrant. BACKGROUND

[0002] Fire hydrant is a kind of fixed fire-fighting facilities, and it is divided into indoor fire hydrant and outdoor fire hydrant, and indoor fire hydrant is usually installed on the fire pipe in building, to provide fire water when fire occurs.

[0003] Chinese utility model patent, authorized announcement No.CN221130842U discloses a kind of pressurized indoor fire hydrant.It includes hydrant body, hydrant cover, valve stem nut, valve stem, hand wheel, sealing valve, sealing seat ring, pipe tooth interface, pressurizing sleeve, flow guide baffle and pressurizing regulating device.It reaches to the pressurization of output water flow, improves the use effect and practicality of fire hydrant, while reducing the effect of pressure loss in water flow delivery process.

[0004] Prior art is to change the shape of relevant components in hydrant body to achieve the pressurization effect of output water, however, in practical application, fire hydrant is generally connected with fire hose for use, so that, although the local flow rate of hydrant output port increases, due to the frictional resistance of fire hose itself and long-distance delivery and other factors, pressure will rapidly attenuate after water flow enters fire hose, so that water pressure and flow rate reaching fire source often difficult to meet the demand of efficient fire extinguishing. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of pressurized indoor fire hydrant to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of pressurized indoor fire hydrant, including control unit and fire hydrant body, the pipe body of water inlet pipe in the bottom of fire hydrant body is connected with three-way valve, three-way valve includes top valve pipe, side valve pipe and bottom valve pipe, bottom valve pipe is fixedly communicated with municipal pipe network;

[0007] the pipe body of top valve pipe and side valve pipe is respectively connected with first solenoid valve and second solenoid valve, and pressure boosting assembly is arranged between side valve pipe and fire hydrant body side water outlet pipe.

[0008] Preferably, the pressure boosting assembly includes communication pipe, and the two sides of the communication pipe are fixedly communicated with the side valve pipe and the water outlet pipe respectively.

[0009] The pipe body of communication pipe is connected with pressurized water pump.

[0010] Preferably, the side wall of water outlet of water outlet pipe is fixed with pressure sensor electrically connected with control unit.

[0011] Preferably, a placing plate is fixed on the pipe body of the water inlet pipe, and the booster water pump is installed on the placing plate.

[0012] Preferably, a buffer is arranged in the water outlet pipe.

[0013] Preferably, the buffer comprises two mounting plates fixed on the bottom wall of the water outlet pipe, a connecting shaft is fixed between the mounting plates, and a rotating plate is movably connected to the shaft body of the connecting shaft.

[0014] A torsional spring is fixed between the mounting plate and the side plate of the rotating plate.

[0015] Preferably, the bottom of the rotating plate is provided with a connecting plate, a spherical convex is formed in the middle of the connecting plate, a mouth-shaped pressing plate is arranged on the outer side of the connecting plate, and the rotating plate, the connecting plate and the mouth-shaped pressing plate are fixed through a plurality of bolts.

[0016] Preferably, the angle formed by the rotating plate and the water outlet pipe is 30-40 degrees.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The booster indoor fire hydrant is provided with a three-way valve, a first electromagnetic valve, a second electromagnetic valve, a booster water pump and a communication pipe, the municipal pipe network and the fire hydrant body are connected through the three-way valve, when boosting is not needed, the second electromagnetic valve can be closed and the first electromagnetic valve can be opened, so that water flows directly through the top valve pipe and enters the fire hydrant body, daily low-pressure water use or simple fire-fighting demand is met, and when an emergency such as fire occurs and high-pressure water flow is needed, the first electromagnetic valve is closed, the second electromagnetic valve is opened and the booster water pump is started, so that water flow is pressurized, then the high-pressure water flow is transported to the fire hose through the water outlet pipe, the water flow reaching the fire source has enough water pressure and impact force, and the fire extinguishing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a half sectional view of the valve body of the utility model;

[0021] Figure 3 It is an axial view of the buffer of the utility model.

[0022] In the drawing: 1, fire hydrant body; 101, water inlet pipe; 102, water outlet pipe; 2, three-way valve; 201, top valve pipe; 202, side valve pipe; 3, communication pipe; 4, booster water pump; 5, pressure sensor; 6, buffer; 601, rotating plate; 602, spherical convex; 603, mouth-shaped pressing plate; 604, torsional spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0024] As shown in Figures 1-3 The utility model provides a kind of technical scheme: a pressurized indoor fire hydrant, including control unit and fire hydrant body 1, three-way valve 2 is connected on the pipe body of water inlet pipe 101 of fire hydrant body 1 bottom, wherein, three-way valve 2 includes top valve pipe 201, side valve pipe 202 and bottom valve pipe, bottom valve pipe is fixedly communicated with municipal pipe network, first solenoid valve and second solenoid valve are respectively connected with control unit electric connection on the pipe body of top valve pipe 201 and side valve pipe 202, and pressurizing assembly is arranged between side valve pipe 202 and fire hydrant body 1 side water outlet pipe 102.

[0025] As shown in Figure 1 Pressurizing assembly includes communication pipe 3, and the two sides of communication pipe 3 are fixedly communicated with side valve pipe 202 and water outlet pipe 102 respectively, pressurized water pump 4 is connected on the pipe body of communication pipe 3, and pressure sensor 5 electrically connected with control unit is fixed on the side wall of water outlet of water outlet pipe 102, in addition, placing plate is fixed on the pipe body of water inlet pipe 101, and pressurized water pump 4 is installed on placing plate, this installation mode not only improves the placing stability of pressurized water pump 4, but also is convenient for its later maintenance and maintenance, when not needing to use pressurizing function, for example, daily fire drill or low water pressure demand scene, control unit can control second solenoid valve to close, and first solenoid valve opens, and water flow is directly entered into fire hydrant body 1 inside through top valve pipe 201, to realize conventional water supply mode, improve the use flexibility of fire hydrant.

[0026] As shown in Figure 2 And Figure 3As shown, if the water pressure in the municipal pipeline is normal, the water will quickly enter the fire hose after the user opens the hydrant. Since the fire hose is curved in the initial state, the water resistance is large when the water passes through the fire hose, which increases the water pressure in the outlet pipe 102. Thus, when the water supply starts, the water will impact the fire hose. The high water pressure will cause the tail of the fire hose to swing greatly, making it difficult for the firefighters to hold the fire gun connected to the end of the fire hose. To reduce the swing, facilitate use and increase the rescue time, a buffer 6 is arranged in the outlet pipe 102. The buffer 6 includes two mounting plates fixed to the bottom wall of the outlet pipe 102, and a rotating plate 601 arranged between the two mounting plates. In addition, a torsional spring 604 is fixed between the mounting plates and the side plates of the rotating plate 601. In the initial state (when the water supply is not started), the angle between the rotating plate 601 and the outlet pipe 102 is 30-40 degrees, and the preferred angle is 35 degrees. A connecting plate is arranged at the bottom of the rotating plate 601, and a spherical convex 602 is formed in the middle of the connecting plate. The spherical convex 602 is preferably a rubber airbag made of rubber material. A mouth-shaped pressing plate 603 is arranged outside the connecting plate, and the rotating plate 601, the connecting plate and the mouth-shaped pressing plate 603 are fixed by a plurality of bolts. Thus, when the water passes through the fire hose, the water resistance is large, which increases the water pressure in the outlet pipe 102. Due to the high water flow rate and high water pressure of the outlet pipe 102, the water impacts the rotating plate 601 which is inclined upward. At this time, the torsional spring 604 is subjected to a torsional force, and the rotating plate 601 rotates clockwise around the connecting shaft connecting the rotating plate 601. Under the joint action of the spherical convex 602 and the torsional spring 604, the water pressure is buffered, the water speed in the fire hose is reduced, the impact force of the water on the fire hose is reduced, and the swing of the tail of the fire hose is reduced.

[0027] Working principle, in the initial state, the first electromagnetic valve on the top valve pipe 201 is in the open state and the second electromagnetic valve on the outlet pipe 102 is in the closed state. When in use, the user rotates the hand wheel on the hydrant body 1 to move the valve core in the hydrant body 1, so that the hydrant body 1 is in the open state. Water flows out of the outlet pipe 102. The pressure sensor 5 monitors the water pressure in the outlet pipe 102 in real time and transmits the data to the control unit. When the monitored water pressure is lower than the preset threshold value (such as 0.5 MPa), the control unit immediately controls the first electromagnetic valve to close and the second electromagnetic valve to open, and starts the booster pump 4 at the same time. The water in the municipal pipeline flows into the connecting pipe 3 through the side valve pipe 202 of the three-way valve 2, and enters the outlet pipe 102 after being pressurized by the booster pump 4, thereby achieving pressure boosting.

[0028] It should be noted that the structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described clearly in the technical principle of the design, and under the premise that the technical personnel in the field understand the principle of the above-mentioned utility model, the specific of the power mechanism, the power supply system and the control system can be clearly known, the control mode of the application file is automatically controlled through the control unit, and the control circuit of the control unit can be realized through simple programming of the technical personnel in the field; wherein the standard parts used can be purchased from the market, and can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, and the components known by the technical personnel in the field, the structure and principle thereof can be known by the technical personnel through the technical manual or through the conventional experimental method.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principle and spirit of the utility model, and the scope of the utility model is defined by the attached embodiments and their equivalents.

Claims

1. A pressurized indoor fire hydrant comprising a control unit and a hydrant body (1), characterized in that: The bottom water inlet pipe (101) of the fire hydrant body (1) is connected with a three-way valve (2), the three-way valve (2) comprises a top valve pipe (201), a side valve pipe (202) and a bottom valve pipe, and the bottom valve pipe is fixedly communicated with the municipal pipe network; The pipe body of the top valve pipe (201) and the side valve pipe (202) is respectively connected with a first electromagnetic valve and a second electromagnetic valve, and a booster assembly is arranged between the side valve pipe (202) and the side water outlet pipe (102) of the fire hydrant body (1).

2. A booster indoor fire hydrant according to claim 1, wherein: The booster assembly comprises a communication pipe (3), and the two sides of the communication pipe (3) are fixedly communicated with the side valve pipe (202) and the water outlet pipe (102) respectively. The pipe body of the communication pipe (3) is connected with a booster water pump (4).

3. A booster indoor fire hydrant according to claim 2, wherein: The side wall of the water outlet of the water outlet pipe (102) is fixedly provided with a pressure sensor (5) which is electrically connected with the control unit.

4. A booster indoor fire hydrant according to claim 3, wherein: The pipe body of the water inlet pipe (101) is fixedly provided with a placing plate, and the booster water pump (4) is installed on the placing plate.

5. A booster indoor fire hydrant according to claim 1, wherein: The water outlet pipe (102) is provided with a buffer (6).

6. A booster indoor fire hydrant according to claim 5, wherein: The buffer (6) comprises two mounting plates which are fixed to the bottom wall of the water outlet pipe (102), a connecting shaft is fixed between the mounting plates, and a rotating plate (601) is movably connected to the shaft body of the connecting shaft. A torsional spring (604) is fixed between the mounting plate and the side plate of the rotating plate (601).

7. A booster indoor fire hydrant according to claim 6 wherein: The bottom of the rotating plate (601) is provided with a connecting plate, the middle part of the connecting plate is formed with a spherical convex (602), the outer side of the connecting plate is provided with a mouth-shaped pressing plate (603), and the rotating plate (601), the connecting plate and the mouth-shaped pressing plate (603) are fixed through a plurality of bolts.

8. A booster indoor fire hydrant according to claim 7, wherein: The angle formed by the rotating plate (601) and the water outlet pipe (102) is 30-40 degrees.

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