JPH0821781A - Pressure resistance-testing apparatus for fire hose - Google Patents

Abstract

PURPOSE:To effectively test pressure resistances of a plurality of fire hoses while saving water, by setting a water-feeding/pressuring device which can be connected to the side of one end of the fire hose, etc. CONSTITUTION:An opening/closing device 2a at the one end of a fire hose 1 is connected to a metal cap at the front end of a water-feeding/pressuring device A. At the same time, a water feed hose 8 is connected to a valve 11. The opening/closing device 2a and valves 11, 7 are opened to feed water into the hose 1 from a fire hydrant 6. Then, an opening/closing device 2b and the valve 11 are closed and, the hose 8 is detached from the valve 11. Subsequently, the pressuring device A is driven and a valve 10 is opened. Water is supplied into the hose 1 until a predetermined pressure is achieved by the pressuring device A. During the time, the pressure is measured with a pressure gauge 3. Pressure resistances are tested in this manner. Then, for testing a second hose, a relay hose 4 is connected to the opening/closing devices 2b, 2b of the first and second hoses. Water in the first hose 1 is sent into the second hose, when pressure resistances are tested by the pressuring device A. The same procedure is carried out afterwards. Pressure, resistances are thus tested sequentially while water is saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure test device for a fire hose which can effectively perform a pressure test on a plurality of fire hoses, one by one.

[0002]

2. Description of the Related Art Conventionally, as can be seen in Japanese Utility Model Laid-Open No. 57-77939, air which can be opened and closed by operating a pressure gauge and a valve in a hollow tube having a hose connecting fitting at one end and a closed end. A hose pressure resistance tester provided with a pipe is known.

[0003]

However, when using such a tester to perform a pressure resistance test on a plurality of long fire hoses, each having a length of 25 m, a large amount of water in each hose is thrown away. Therefore, a large amount of water is needed and wasted. Moreover, for example, on the rooftop of a building, the wastewater treatment will be hindered, and if the water pressure of the fire hydrant is low, the test cannot be performed. The fire hydrant presents a problem that it is not possible to carry out a pressure resistance test for each fire hose that has a different pressure resistance value.

[0004]

SUMMARY OF THE INVENTION The present invention solves such a problem as a problem and makes it possible to effectively test the pressure resistance performance of a plurality of fire hoses. A water pressurizer that can be connected, both switches that can open and close both ends of the fire hose, a pressure gauge that can measure the water pressure inside the fire hose, and both ends can be attached to and detached from one end of each fire hose. It consists of a relay hose that can be connected.

Another object of the present invention is to enable effective water supply from the inside of a fire hose that has been tested to the fire hose to be tested next. It is a combination of water extrusion devices that can move the water in the fire hose to the other end while moving it to the other end.

[0006]

[Action] Therefore, it is possible to attach switches to both ends of the fire hose, and to connect one switch to the water supply press and the water source such as a fire hydrant or fire pump, and to vent the other switch. To supply water from the water source into the fire hose, close the other switch when air is removed, remove the water source when the fire hose is full, and add water while measuring with a pressure gauge. When the water is fed into the fire hose by the pressure machine until the pressure reaches a predetermined value, the first pressure resistance test can be performed first.

Next, when performing the second test, 1
While closing one switch of the first one, connect the tip of the water pressurizer that is removed from this switch to one switch of the second one, and connect both ends of the relay hose to the other switch of the first and second switches. Connect each one and open both switches, and operate the second one switch so that air can be vented, and while operating the first fire hose, the water in the hose can be drained into the second fire hose. After sending it in, 2
Close the other switch of the second one and open the other switch of the second one fully, and while measuring with the pressure gauge, send water into the second fire hose until the pressure reaches the specified pressure with the water pressure press and perform the second pressure resistance test. Then, the pressure resistance test can be sequentially performed on the third and fourth wires while saving water by operating in the same manner.

[0008] Further, when a water push-out device that can move water in the fire-fighting hose to the other end side while moving along the fire-fighting hose from one end side to the other end side is combined, , The water in the tested fire hose can be effectively sent to the fire hose to be tested next with good workability.

[0009]

1 to 4 show a first embodiment of the present invention, in which a valve-type switch 2a or 2b is attached to each end of a long fire hose 1 having a length of 25 m. Both ends of the short relay hose 4 can be attached to and detached from the other end side switches 2b and 2b of the fire hoses 1 and 1, and a water supply hose 8 is provided from a valve 7 attached to a drain of a fire hydrant 6 having a valve handle 5 on the upper portion. At the tip of the hose 9 extending from the water supply pressurizer A, one end can be attached to and detached from the switch 2a through a valve 10 and the other end can be attached to and detached from the tip of the water supply hose 8. The water supply pressurizer A includes a moving wheel 13, a handle 14, a stand 15, and a water tank 1.
6, an engine (or a motor) 17, a pump unit 18, a pressure gauge 3, a pressure adjusting handle 19, a take-up reel 20, and the like. The pump unit 18 uses the pressure adjusting handle 19 to partially cover the water tank 16. The water pressure is adjusted while circulating water so that the pressure gauge 3 can measure a water pressure of, for example, 20 kg for a pressure resistance test of the fire hose 1. A fire pump may be used instead of the fire hydrant 6.

FIG. 9 shows an example of the water push-out device B, which has a handle 21 and moving wheels 22 and can be moved by a fire truck 1 on a trolley. The rollers 23a and 23b are mounted on a shaft so that the moving wheel 22 and the roller 23a can be driven by a motor 24 on the table, and the roller 23a is tensioned by a spring 25.
By means of this, elastic pressure is applied to the lower roller 23b side.

FIG. 10 shows two examples of the water extrusion device B,
A roller 23b is mounted on a machine frame portion that can be moved by both moving wheels 22 while holding the grip portion 21a, and a roller 23a is provided above the roller 23b to elastically urge the lower roller 23b side by a tension spring 25. 11 shows three examples of the water push-out device B, and as shown in the figure, on a dolly which can be moved by each moving wheel 22 while holding the handle 21. Roller 23 on which the fire hose 1 can be placed and rotated
It is configured by b being suspended.

Therefore, first, the first fire hose 1
In the case of performing the pressure resistance test, the switch 2a on one end side of the fire hose 1 is connected to the mouthpiece 12 at the tip of the water supply pressurizer A, and the water supply hose is connected to the valve 11 of the mouthpiece 12 as shown in FIG. Even if the water pressure is lower than that of the fire hydrant 6, by connecting the tip end side of 8 and operating the other switch 2b so that air can be vented and closing the valve 10 and opening the switch 2a and the valves 11 and 7. Water can be sent into the fire hose 1, and the switch 2b is closed when the air is removed, and the switch 2a and the valve 1 are also closed.
1 is closed to remove the water supply hose 8 from the valve 11, and then the water supply pressurizer A is operated to open the switch 2a and the valve 10. While measuring with the pressure gauge 3, the water supply pressurizer A measures a predetermined amount of, for example, 20 kg. Water can be fed into the fire hose 1 until pressure is reached, and the first pressure resistance test can be performed first.

Next, in the case of conducting the second test, as shown in FIG. 2, the first switch 2a is closed and the mouthpiece 12 removed from the switch 2a is replaced with the second switch 2a. Connected, and the first and second switches 2
b and 2b, connect both ends of the relay hose 4, respectively,
The valve 10 is closed and the switch 2a and the valve 1 are closed.
1 is operated so that air can be vented, and when the first and second switches 2b, 2b are opened, the water in the first fire hose 1 is relayed by operating the first fire hose 1. 4 can be sent into the second fire hose 1, but if a water pushing device B as shown in FIGS. 9, 10 and 11 is used, as shown in FIG. Water can be sent by moving both rollers 23a and 23b from one end side to the other end side as shown by arrow a.

In this way, when the first water is sent out to the second water and air is removed, as shown in FIG. 4, the second switch 2b is closed, the valve 11 is closed, and the switch 2a and the valve are closed. When 10 is fully opened, while measuring with the pressure gauge 3, the water feeding pressurizer A measures 20 k
Water can be fed into the second fire hose 1 until a predetermined pressure of g is reached and a second pressure resistance test can be performed. It is possible to perform a pressure resistance test.

FIGS. 5 to 7 show a second embodiment of the present invention, which is substantially the same as the first embodiment and is constructed in substantially the same manner as that of the first embodiment, but 9a is a simple water supply pressurizer having no pressure gauge. The hose extending further, and having the pressure gauge 3 and the valve 27 and supported by the stand 26, the gauge body 3a is configured to be attachable to and detachable from the other switch 2b of the fire hose 1, and As shown in FIG. 8, an air vent pipe 28 with a cock may be provided on the other side of the gauge body 3a.

Therefore, when the device is set as shown in FIG. 5 and operated in the same manner as in the above embodiment, a predetermined pressure of, for example, 20 kg is applied from the hose 9a while measuring with the pressure gauge 3 while the switch 2b is open. It is possible to carry out water pressure test until the first pressure test is performed. Then, when performing the second pressure test, the switch 2a of the second fire hose 1 is connected as shown in FIG. Base 12
, The gauge main body 3a is connected to the other switch 2b, and both ends of the relay hose 4 are connected to the first switch 2a and the valve 11, and as shown in FIG. If the water in the first fire hose 1 is sent out from the relay hose 4 into the second fire hose 1, while measuring with the pressure gauge 3, for example 2 from the hose 9a.
The second pressure resistance test can be performed by sending water until the pressure reaches a predetermined pressure of 0 kg, and the pressure resistance test can be sequentially performed on the third and fourth pressure lines in the same manner as described above while saving water.

[0017]

As described above, according to the present invention, the first fire hose (1) is supplied with water from the water source and the water pressure is applied to the first fire hose 20 while measuring with the pressure gauge (3).
It is possible to effectively carry out the pressure resistance test by sending water until the pressure reaches a predetermined pressure such as kg, 17 kg, 15 kg.
Water can be sent to the fire hose (1) from the first through the relay hose (4) from inside the tested fire hose (1), and the water feeding press (while measuring with the pressure gauge (3) From A), water can be sent until it reaches a predetermined pressure, and a pressure resistance test can be effectively performed, and the first fire hose (1) can be easily water-supplied even if the water pressure of the water source part has dropped. It is possible to save a large amount of water supplied to the first fire hose (1) in succession to the second fire hose (1) while saving water without requiring a large amount of water as in the past. Book Fire Hose (1)
The pressure resistance test can be effectively performed with good workability even if the pressure resistance value differs depending on the hose, and it has a feature that it can be suitably executed.

Further, a water pushing device (B) capable of pushing the water in the fire hose (1) to the other end while moving the fire hose (1) from one end side to the other end side.
When combined with each other, the water pushing device (B) can reliably and satisfactorily send the water in the tested fire hose (1) into the fire hose (1) to be tested next with good workability.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a main part of a first embodiment of the present invention.

FIG. 2 is an operation explanatory view shown in a part of FIG.

FIG. 3 is an operation explanatory view showing an operation state of FIG.

FIG. 4 is an operation explanatory view shown in a part of FIG.

FIG. 5 is an explanatory diagram showing a main part of a second embodiment of the present invention.

6 is an operation explanatory view shown in a part of FIG.

FIG. 7 is an operation explanatory view showing the operation state of FIG. 6;

FIG. 8 is a front view showing another example of a part of FIG.

FIG. 9 is a side view showing an example of a water extrusion device.

FIG. 10 is a perspective view showing two examples of a water pushing device.

FIG. 11 is a side view showing three examples of water extrusion devices.

[Explanation of symbols]

 1 Fire hose A Water pressurizer 2a, 2b Switch 3 Pressure gauge 4 Relay hose B Water extrusion device

Claims (2)

[Claims] 1. A water supply pressurizer (A) that can be connected to one end side of a fire hose (1) and both switches (2a) and (2) that can open and close both ends of the fire hose (1).
b), a pressure gauge (3) capable of measuring the water pressure in the fire hose (1), and a relay hose (4) capable of detachably connecting both ends to one end of both fire hoses (1) and (1). A pressure resistance tester for fire hose. 2. A combination of a water push-out device (B) capable of pushing water in the fire hose (1) to the other end while moving it from one end to the other end along the fire hose (1). The pressure resistance test apparatus for a fire hose according to claim 1.