JP3908680B2 - Fire hydrant equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an open / close lever of a fire hydrant valve of a fire hydrant device.
[Prior art]
In order to open and close the fire hydrant valve of a conventional fire hydrant device, the pivot of the valve body of the fire hydrant valve which is a ball valve or a butterfly valve, that is, the tip of the open / close lever fixed at right angles to the valve shaft is the handle part. This is done by grasping the handle and rotating the open / close lever 90 degrees (see, for example, Patent Document 1). The valve shaft at this time is also the rotation shaft of the opening / closing lever.
[0003]
A conventional opening / closing lever is shown in FIGS. When a fire hydrant door (not shown) is opened, a fire hydrant valve opening / closing lever that faces the opening provided with the fire hydrant door and is parallel to the opening (a plane formed by) appears. For example, as shown in FIG. 5, an open / close lever 122 perpendicular to the horizontal valve shaft C6 of the fire hydrant valve 120 connected to the vertical water supply pipe 3 is disposed in parallel and horizontally with the opening in the valve-closed position. It had been. Further, as shown in FIG. 6, the open / close lever 222 that is connected to the horizontal water supply pipe 3 parallel to the opening and is placed horizontally and perpendicular to the vertical valve shaft C7 of the valve body 221 is in the valve-closed position. It was arranged parallel to the opening and horizontally. Further, as shown in FIG. 7, the open / close lever 322 of the fire hydrant valve 320 of the horizontal valve shaft C8 connected to the vertical water supply pipe is vertically arranged at the valve-closed position.
[0004]
In order to open these open / close levers 122, 222, and 322, the open / close lever 122 is rotated 90 degrees clockwise A1 downward and the open / close lever 122a is pointed directly downward (FIG. 5). The open / close lever 222 rotates 90 degrees counterclockwise A2 toward the front to the position of the horizontal open / close lever 222a with the tip facing forward (FIG. 6), and the open / close lever 322 rotates 90 degrees clockwise A3. It was made to move (FIG. 7) to the position of the opening / closing lever 322a with its tip turned horizontally to the right.
[0005]
Further, in the conventional example shown in Patent Document 2, the open / close lever perpendicular to the horizontal valve shaft of the fire hydrant valve connected to the vertical water supply pipe is parallel and perpendicular to the opening of the fire hydrant door in the valve closed position. Had been placed. Here, the valve shaft was parallel to the opening and was horizontal, and the open / close lever was upright on the right side of the hydrant valve.
[0006]
Further, in the conventional example shown in Patent Document 3, an open / close lever that is connected to a horizontal water supply pipe that is perpendicular to the opening of the fire hydrant door and is perpendicular to the horizontal valve shaft of the valve body is in the closed position. As viewed from the front of the fire hydrant device, it was inclined at an angle of 45 degrees to the rear. Here, the valve shaft is parallel to the opening. Next, in another situation, after using the fire hydrant device, after the pump is stopped and the water supply is stopped, the fire hydrant valve remains open and the fire hydrant remains open. The door was sometimes closed. Therefore, as in the conventional example (for example, see Patent Document 4), when the fire hydrant valve is open, a part of the link connected to the fire hydrant valve protrudes from the inner edge of the door to close the fire hydrant door. There was a device to prevent the fire hydrant door from closing.
[0007]
[Patent Document 1]
Japanese Utility Model Publication No. 5-28356
[Patent Document 2]
Japanese Utility Model Publication No. 55-28286 [0009]
[Patent Document 3]
Japanese Utility Model Publication No. 54-131398 [0010]
[Patent Document 4]
Japanese Utility Model Publication No. 7-31797 [0011]
[Problems to be solved by the invention]
In the conventional example, most people handle the fire hydrant device for the first time, and the operator must make a judgment in a short time by looking at the operation explanation plate of the illustration with the fire hydrant door open. Even if the direction of rotation of the open / close lever in the closed state was instructed, if it was in a hurry and different from the momentary assumption of the operator, there was a situation that it took extra time to change it. . Or even if it is not changed, there may be a problem with respect to good operability that it is difficult to operate.
[0012]
For example, in FIG. 7, when the vertical opening / closing lever 322 is gripped with the thumb of the right hand up, it is difficult to apply force to the right rotation, so the thumb of the right hand may be changed downward.
[0013]
Even when the rotation instruction (not shown) is followed, when the open / close lever is disposed horizontally or vertically, the right-hand operation and the left-hand operation have different operability. For example, in the example of FIG. 5, it is easy for a person with a right hand operation, and in the examples of FIGS. 6 and 7, it is easy for a person with a left hand operation. Even in the prior art of Patent Document 2, it is easy for the right hand to operate this open / close lever, but the left hand is difficult to operate when the fire hydrant valve grips the open / close lever.
[0014]
In order to operate this open / close lever in the prior art such as Patent Document 3, some grips are attached along the open / close lever that covers the tip of the open / close lever. Grasp the handle and pull it forward. I was operating. There is no difference in operation depending on the choice of left and right hands, but since the open / close lever is placed at a distance to the side of the nozzle (right side in Fig. 1), even if you want to take the nozzle and go to the left side, It was necessary to move to the right once to operate the open / close lever.
[0016]
As an object of the present invention, there is a conventional technique (see Patent Document 4) that prevents the fire hydrant door from being closed while the opening / closing lever is open, but the structure thereof is complicated.
[0017]
As a simple configuration, for example, a configuration in which the vertical opening / closing lever is tilted by 90 degrees toward the front and the tip of the opening / closing lever protrudes to a position that prevents the fire hydrant door from closing is conceivable. However, in this configuration, when the valve is closed, the vertical opening / closing lever must be provided in the immediate vicinity of the left or right of the fire hydrant valve connected to the vertical water supply pipe. Therefore, this configuration cannot be adopted.
[0020]
[Means for Solving the Problems]
In the present invention, at least when the hydrant valve is fully opened, the handle portion interferes with the hydrant door at the closed position so that the hydrant door is not closed with the open / close lever of the hydrant valve being opened. To achieve the goal .
[0021]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a transparent front view showing the inside through. FIG. 2 is an enlarged perspective view of the main part of FIG. 1, in which (a) shows a state during warning and (b) shows a state during use.
[0022]
1 is a fire hydrant device, 2 is a fire hydrant valve provided in the fire hydrant device 1, 3 is a water supply pipe connected to the fire hydrant valve 2 and provided in the fire hydrant device 1, and 4 is a terminal at the end of the water supply pipe 3. Fire hydrant hose to which the parts are connected, 5 is a nozzle connected to the tip of the hydrant hose 4, 6 is a pressure regulating valve connected to the water supply pipe 3 on the secondary side of the hydrant valve 2, and 7 is a pressure regulating valve 6. A maintenance valve 10 connected to the water supply pipe 3 on the secondary side is a housing of the fire hydrant apparatus 1, and the fire hydrant valve 2 is disposed in the housing 10. 10a is an opening formed on the front surface of the housing 10, 11 is a fire hydrant door provided in the opening, 12 is a hose housing side wall for housing the fire hydrant hose 4, and 13 is a nozzle 5 that holds the nozzle 5 in a detachable manner. It is a nozzle holder provided on the hose housing side wall 12.
[0023]
21 is a valve main body of the fire hydrant valve 2, 22 is an opening / closing lever of the fire hydrant valve 2, C is a horizontal rotation shaft of the opening / closing lever 22, that is, a valve shaft (center axis), and 23 is on the distal end side of the opening / closing lever 22. A shaft portion provided parallel to the rotation axis C, a roller 24 as a grip portion loosely fitted to the shaft portion 23 so as not to drop off, and H a shaft (center axis) of the shaft portion 23 and the roller 24 It is. The pivot axis C and the axis H are parallel to the opening 10a (a plane formed by).
[0024]
FIG. 2 is a perspective view showing the fire hydrant valve 2. FIG. 2 (a) shows a state in which the open / close lever 22 is vertically raised, and the fire hydrant valve 2 is in a closed state, that is, in a warning state, and FIG. The open / close lever 22 is in a position in front of the pivot axis C (on the side of the handler), and the fire hydrant valve 2 is shown in a fully open state, that is, in use.
[0025]
Therefore, as shown in FIG. 2, the height position of the roller 24, which is the handle portion, is a position that is lower when fully open than when the fire hydrant valve 2 is closed. Further, the front and rear positions of the roller 24 are the front positions when fully open rather than when the fire hydrant valve 2 is closed.
[0026]
Next, the operation of the first embodiment will be described.
When a fire breaks out, a person on site rushes to open the hydrant door 11, take out the nozzle 5, hold the roller 24 with one hand and pull it down. At this time, since the roller 24 is horizontal and parallel to the opening 10a, that is, facing the front, there is no difference in gripping the roller 24 with either the right hand or the left hand, and when opening the fire hydrant valve 2, the roller 24 is Since it moves horizontally from top to bottom, there is no difference in operability with either the right hand or the left hand, so a fire hydrant device with excellent emergency response can be obtained. In addition, the roller 24 should just be provided so that it may become substantially horizontal and may become substantially parallel with respect to the surface of the opening part 10a, when a field person, ie, an operator, sees the roller 24 from the front.
[0027]
As for the rotation direction of the opening / closing lever 22, whether to turn it upward or downward can be understood because the rotation axis C of the opening / closing lever 22 is visible even if the rotation direction indicator (not shown) is overlooked. Sometimes it is easier to lower it than to lift it.
[0028]
Thus, since the height position of the handle portion 24 is a position where the fully open state is lower than when the fire hydrant valve is fully closed, the operator recognizes a rotation direction indicator (not shown) with respect to the rotation direction of the handle portion 24 of the open / close lever 22. Even if it is not done, it is easier to put down the force and it is easier to select the operability.
[0029]
In addition, the roller 24 is illustrated in a cylindrical shape, but any shape, for example, a polygonal column shape, a grip shape with unevenness, or the like may be used.
[0030]
The roller 24 is loosely fitted to the shaft portion 23 so that the roller 24 is rotatable with respect to the shaft portion 23. However, the roller 24 may be fixed between the shaft portion 23 and the shaft portion 23. The roller 24 may not be provided only by 23.
[0031]
Next, a second embodiment of the present invention will be described with reference to FIG. 3. The same reference numerals as those in the first embodiment have the same names and functions just by replacing the fire hydrant valve 2 with a fire hydrant valve 40 in FIG.
[0032]
40 is a fire hydrant valve provided in the vertical water supply pipe 3, 41 is a valve main body of the fire hydrant valve 40, 42 is an opening / closing lever of the fire hydrant valve 40, and C 2 is a horizontal pivot shaft or valve shaft of the opening / closing lever 42 ( (Center axis) 44 is a round bar-like handle portion provided on the front end side of the opening / closing lever 42 and parallel to the rotation axis C2, and indicates the position when the hydrant valve 40 is closed, and 44a is the fully opened hydrant valve 40. The handle part at the position at the time of is shown. The rotating shaft C2 and the handle 44 are parallel to the opening 10a of the housing 10 of the fire hydrant apparatus 1. The handle portion 44 is provided on the side where the nozzle 5 is located with respect to the open / close lever 42, that is, on the nozzle holder side which is a nozzle installation portion.
[0033]
The open / close lever 42 rises vertically when the fire hydrant valve 40 is closed, and when the fire hydrant valve 40 is fully opened, the lever 42 is tilted forward (front) by 90 degrees, that is, horizontal. At this time, the handle portion 44 faces the opening 10a so that the handle portion 44 interferes at the closed position of the fire hydrant door 11 at least when the hydrant valve 40 is fully opened.
[0034]
Next, the operation of the second embodiment will be described.
A fire breaks out, and a person in the field rushes to open the fire hydrant door 11, take out the nozzle 5, hold the roller 44 with one hand and pull it down. At this time, since the roller 44 is horizontal and parallel to the opening 10a, there is no difference between the right and left hands in grasping the roller 44, and when opening the fire hydrant valve 40, the roller 44 is moved horizontally from above to below. . Therefore, there is no difference in operability due to the choice of the left and right hands. In addition, since the roller 44 is provided horizontally on the side where the nozzle holder is located with respect to the opening / closing lever 42, when the fire occurrence point is on the side opposite to the fire hydrant valve 40 side when viewed from the nozzle holder 13, that is, the nozzle installation portion Although it is necessary to approach the opposite side of the fire occurrence point, the horizontal distance is close by the length of the roller 44, the distance to the fire hydrant valve side becomes shorter, and the opening operation of the fire hydrant valve 40 is quicker. it can.
[0035]
When the pump (not shown) is stopped by the control panel after the fire extinguishing operation is finished, the water supply is stopped and the water stops, so that the water is drained from the fire hydrant hose 4 and the hose 4 is wound around the hose housing side wall 12 of the housing 10. Is attached to the nozzle holder 13. At this time, if the pump is stopped before the hydrant valve 40 is closed, the water stops, so if the hydrant valve 40 is forgotten to be closed and the hydrant door 11 is closed with the hydrant valve 40 fully open, the hydrant valve 40 is fully opened. Sometimes the handle portion 44 interferes or becomes a hindrance at the closed position of the hydrant door 11, so the hydrant door 11 cannot be closed, and the operator notices that the hydrant valve 40 is not closed at this time. When the hydrant valve 40 is closed, the handle portion 44 does not interfere with the hydrant door 11, so that the hydrant door 11 can be normally closed. Thus, there is obtained a fire hydrant device having a simple configuration that can prevent forgetting to close the fire hydrant valve and having no difference in operability depending on left and right hand selection.
[0036]
In the second embodiment, the fire hydrant valve 11 interferes with the hydrant door 11 when the hydrant valve 40 is fully opened. However, when the hydrant valve 40 is in a position that is not half-opened or closed, including the fully opened state. You may make it arrange | position the fire hydrant valve 40 close to the fire hydrant door so that it may interfere with the fire hydrant door 11.
[0037]
Next, Embodiment 3 of the present invention will be described with reference to FIG. 4. The same reference numerals as those in Embodiment 1 have the same names and functions just by replacing the fire hydrant valve 2 with the fire hydrant valve 50 in FIG.
[0038]
50 is a fire hydrant valve provided in the vertical water supply pipe 3, 51 is a valve body of the fire hydrant valve 50, 52 is an opening / closing lever of the fire hydrant valve 50, and C 3 is a horizontal pivot shaft or valve shaft ( (Center axis) 54 is a round bar-shaped handle (roller) provided on the front end side of the opening / closing lever 52 and parallel to the rotation axis C3, and indicates the position when the fire hydrant valve 50 is closed, and 54a is a fire hydrant. The handle part of the position when the valve 50 is fully opened is shown. The rotation axis C3 and the handle portion 54 are parallel to the opening 10a of the housing 10 of the fire hydrant apparatus 1.
[0039]
Z is a vertical line passing through the turning point of the opening / closing lever 52, L is an axis line (center line) when the opening / closing lever 52 is closed, La is an axis line (center line) when the opening / closing lever 52 is fully opened, and the axis L The angle of the axis La is 90 degrees. θ is the forward tilt angle of the axis L with respect to the vertical line Z, and θ can be greater than 0 degrees and less than 90 degrees, but for example, 30 degrees is selected.
[0040]
Next, the operation of the third embodiment will be described.
When a fire breaks out, a person in the field rushes to open the fire hydrant door 11, take out the nozzle 5, hold the roller 54 with one hand and pull it down. At this time, since the fire hydrant valve 50 is in the closed position and the open / close lever 52 is tilted forward, the roller 54 protrudes forward (on the side of the operator), so it is noticeable and easy to understand for a person who handles for the first time.
[0041]
Also, when the fire hydrant valve 50 is closed and the open / close lever 52 is tilted forward when the roller 54 is grasped and pulled down to the roller 54a, the change in the vertical position of the roller 54 is large but the front-rear direction. Therefore, the image of lowering the roller 54 is stronger than the image of rotating the roller 54 back and forth around the rotation axis C3. It is very easy to explain how to operate the roller 54 on the operation explanation plate, rather than explaining that it is rotating, so it is very easy to understand. It is easy to understand and operate even for those who do not know at all.
[0042]
If θ is less than 45 degrees, as shown in FIG. 4, the roller 54a when the hydrant valve 50 is fully opened is positioned in front of the roller 54 when the hydrant valve 50 is closed. The fire hydrant door 11 can be prevented from being closed by the roller 54a interfering with the fire hydrant door 11 at the time of closing, and the fire hydrant apparatus 1 having the function of preventing the fire hydrant valve from being forgotten to close as shown in the second embodiment is obtained.
[0046]
【The invention's effect】
At least when the hydrant valve is fully open, the handle interferes with the hydrant door closing position, so the hydrant door cannot be closed while the hydrant valve is open, so it is easy to prevent forgetting to close the hydrant valve. There exists an effect that the fire hydrant apparatus of a structure is obtained.
[Brief description of the drawings]
FIG. 1 is a perspective front view showing a first embodiment of the present invention.
2 is an enlarged perspective view of a main part of FIG. 1, in which (a) shows a state during warning and (b) shows a state during use.
FIG. 3 is an enlarged side view of a main part of a second embodiment of the present invention.
FIG. 4 is an enlarged side view of a main part of a third embodiment of the present invention.
FIG. 5 is a front view showing a conventional example.
FIG. 6 is a perspective view showing another conventional example.
FIG. 7 is a front view showing still another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fire hydrant apparatus 2 Fire hydrant valve 3 Water supply piping 4 Fire hydrant hose 5 Nozzle 10 Case 10a Opening part 11 Fire hydrant door 13 Nozzle holder 22 Opening lever 23 Shaft part 24 Roller 40 Fire hydrant valve 42 Opening / closing lever 44 Roller 50 C, C2, C3 Valve shaft H Axis Z, L Axis θ Forward tilt angle

Claims (1)

  A handle portion having an axis that is substantially horizontal and substantially parallel to the open portion surface is provided on the distal end side of the opening / closing lever of the fire hydrant valve disposed in the housing that forms the opening provided with the fire hydrant door, The fire hydrant apparatus is characterized in that the handle portion interferes at a closed position of the fire hydrant door at least when the fire hydrant valve is fully opened.

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