Fire hydrant device
By integrating a non-protruding red indicator light, the fire hydrant device enhances fire detection coverage by preventing blind spots, ensuring the fire detector's monitoring area is not compromised.
Patent Information
- Application Number
- JP2024000662
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2025-07-17
AI Technical Summary
The existing fire hydrant devices in tunnels have a red indicator light that protrudes, creating a blind spot where the fire detector cannot monitor for fires, thus reducing the effective sensing area.
The fire hydrant device incorporates a red indicator light that does not protrude from the front panel, allowing the fire detector to maintain its monitoring area without interference.
This design ensures that the fire detector can effectively monitor the entire area without blind spots, ensuring comprehensive fire detection without narrowing the monitoring area.
Smart Images
Figure 2025106995000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a fire hydrant device equipped with a fire detector.
Background Art
[0002] In tunnels on motor vehicle exclusive roads such as highways, fire hydrant devices and the like are installed to deal with tunnel fires. The fire hydrant device houses a fire hydrant and a hose, and also includes an emergency transmitter with a button for reporting a fire and a fire detector. The fire detector detects the radiation of a fire occurring in the tunnel to detect the fire. And a red indicator light is provided on the fire hydrant device so that the location of the fire hydrant can be easily seen.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] The fire detector provided in the fire hydrant device has a sensing area along the extending direction of the tunnel. On the other hand, the red indicator light protrudes from the surface of the fire hydrant device. Therefore, the area hidden by the red indicator light as seen from the fire detector cannot be monitored for fire. In Patent Document 1, in order not to narrow the monitoring area, the fire detector is arranged on the side opposite to the red indicator light with the storage part of the fire hose interposed therebetween.
[0005] However, even if the fire detector and the red indicator light are arranged far apart, an insensitive area that is in the shadow of the red indicator light remains. An object of the present invention is to install a red indicator light without narrowing the monitoring area of the fire detector provided in the fire hydrant device.
Means for Solving the Problems
[0006] In one embodiment of the present invention, a fire hydrant device includes a box-shaped housing, a front panel on the front surface of the housing, a fire hose stored in a hose storage portion within the housing, a red indicator light that does not protrude with respect to the front panel, and a fire detector provided on the front panel.
Advantages of the Invention
[0007] According to the present invention, a red indicator light can be installed without narrowing the monitoring area of the fire detector provided in the fire hydrant device.
Brief Description of the Drawings
[0008]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Modes for Carrying Out the Invention
[0009] First, a conventional fire hydrant device will be described. FIG. 1 shows a front view of a fire hydrant device 7 provided in a tunnel. The fire hydrant device 7 is installed at a plurality of locations on the inner wall along the tunnel.
[0010] The conventional fire hydrant device 7 has a front panel 72 on the front surface of a box-shaped housing 71. Three doors, namely a maintenance door 721 that opens upward by a hinge, a fire hydrant door 722 that opens downward, and a fire extinguisher door 723 that opens laterally, are also panels provided on the front surface of the housing 71 and are the front panel 72. The maintenance door 721 is provided with a hinge (not shown) at the upper part, and its lower end moves forward and upward to open. The fire hydrant door 722 is provided with a hinge (not shown) at the lower part, is a front-tilting type, and its upper end moves forward and downward to tilt forward and open. The fire extinguisher door 723 is provided with a hinge (not shown) at the side part, and its right end moves forward and leftward to open. Inside the housing 71, a fire hose (not shown) and a fire hydrant valve (not shown) are stored in the hose storage part inside the fire hydrant door 722. Also, a fire extinguisher (not shown) is stored in the fire extinguisher storage part inside the fire extinguisher door 723. In FIG. 1, a fire detector 74 is provided on the right side of the maintenance door 721, and a red indicator lamp 73 is provided at a location on the front panel 72 that is not a door.
[0011] The red indicator lamp 73 and the fire detector 74 have a shape protruding from the front panel 72. The fire detector 74 is provided with infrared sensors at two locations on the left and right, and senses infrared rays generated by a fire. However, since the red indicator lamp 73 protrudes from the front panel 72, a dead zone D indicated by hatching in FIG. 1 occurs in the fire detector 74. In FIG. 1, a tangent line connecting the outer periphery of the red indicator lamp 73 from the infrared sensors of the fire detector 74 is shown by a dotted line. On the front surface of the fire hydrant device 7, the hatching shown inside the dotted line is the dead zone D. Since it is in the shadow of the red indicator lamp 73 as seen from the fire detector 74, the fire detector 74 cannot sense the infrared rays from a fire in the dead zone D.
Embodiment
[0012] In the fire hydrant device 1 of the first embodiment, a red indicator lamp 13 whose cross-section is shown in FIG. 2 is used. The red indicator lamp 13 is attached to the front panel 12 of the fire hydrant device 1. In FIG. 2, the left side is the front side of the fire hydrant device 1. A display panel 132 is provided on the front side of the main body 131, and a diffusion plate 133 is provided on the back side of the display panel 132. Further, a space is provided on the back side thereof, and two light-emitting element substrates 134 are arranged obliquely with respect to the display panel 132 and the diffusion plate 133. Wiring 136 from the connection terminal 135 is connected to the light-emitting element substrate 134.
[0013] When current is applied from the connection terminal 135, the red LEDs on the light-emitting element substrate 134 emit light, and the light is diffused by the diffusion plate 133. Then, red light emission is sent out through the display panel 132 colored red and outward. As shown in FIG. 2, in the red indicator lamp 13 of the first embodiment, the display panel 132 does not protrude from the front panel 12, and the red indicator lamp 13 is a flat type provided flush with the front panel 12.
[0014] FIG. 3 shows a front view of the fire hydrant device 1 equipped with the red indicator lamp 13 of the first embodiment. The fire hydrant device 1 of the first embodiment has a front panel 12 on the front of a box-shaped housing 11. Three doors, a maintenance door 121 that opens upward by a hinge, a fire hydrant door 122 that opens downward, and a fire extinguisher door 123 that opens laterally, are also panels provided on the front of the housing 11 and are the front panel 12. The maintenance door 121 is provided with a hinge (not shown) at the upper part, and the lower end moves forward and upward to open. The fire hydrant door 122 is provided with a hinge (not shown) at the lower part, is a forward-tilting type, and the upper end moves forward and downward to tilt forward and open. The fire extinguisher door 123 is provided with a hinge (not shown) at the side part, and the right end moves forward and leftward to open. Inside the housing 11, a fire hose (not shown) and a fire hydrant valve (not shown) are stored in the hose storage part inside the fire hydrant door 122. Also, a fire extinguisher (not shown) is stored in the fire extinguisher storage part inside the fire extinguisher door 123. In the fire hydrant device 1 of FIG. 3, similar to the conventional fire hydrant device 7 shown in FIG. 1, a fire detector 14 is provided on the right side of the maintenance door 121, and a red indicator lamp 13 is provided at a place on the front panel 12 that is not a door.
[0015] In Example 1, the fire detector 14 has a shape protruding from the maintenance door 121. However, as shown in FIG. 2, the red indicator lamp 13 does not protrude from the front panel 12. In FIG. 3, a tangent line connecting the outer periphery of the red indicator lamp 13 from the infrared sensor of the fire detector 14 is indicated by a dotted line. The fire detector 14 senses infrared rays generated by a fire. However, since the red indicator lamp 13 does not protrude from the front panel 12, as shown in FIG. 3, a non-sensitive region D indicated by hatching in FIG. 1 does not occur in the fire detector 14.
Example
[0016] In the fire hydrant device 1 of Example 1 shown in FIG. 3, the red indicator lamp 13 may have another structure. FIG. 4 shows a cross-sectional view in the vicinity of the red indicator lamp 2 of Example 2 attached in place of the red indicator lamp 13 in the fire hydrant device 1 of Example 1.
[0017] The red indicator lamp 2 is attached to the front panel 12 in place of the red indicator lamp 13 in the fire hydrant device 1 of Example 1 shown in FIG. 3. In FIG. 4, the left side is the front side of the fire hydrant device 1. A front plate 22 is provided on the front side of the main body 21. At the center of the front plate 22, a button (not shown) of an emergency transmitter for notifying a fire by pressing is provided. The front plate 22 is arranged deeper than the front panel 12, and an annular light guide ring 23 is provided therebetween.
[0018] The light guide ring 23 is a light guide colored red, and the inner side of the ring is a tapered surface 23a inclined with respect to the front surface of the front panel 12 and is recessed. Then, the tapered surface 23a of the red indicator lamp 2 can be visually recognized from the front or obliquely forward. A plurality of light emitting elements 24, which are red LEDs, are embedded in the light guide ring 23, and the light emitting elements 24 emit light by current from the connection terminal 25. The light from the light emitting elements 24 is transmitted through the inside of the light guide ring 23, and red light is emitted from the tapered surface 23a.
[0019] As shown in FIG. 4, the red indicator lamp 2 of Example 2 does not protrude from the front panel 12. Further, in the red indicator lamp 2 of Example 2, the front panel 22 forming the front surface and the light guide ring 23 are recessed from the front panel 12. And the tapered surface 23a of the light guide ring 23 can be clearly seen not only from the front but also from an oblique direction.
Example
[0020] Next, FIG. 5 shows a front view of the fire hydrant device 3 of Example 3. The fire hydrant device 3 of Example 3 has a front panel 32 on the front surface of the box-shaped housing 31. Three doors, a maintenance door 321 that opens upward by a hinge, a fire hydrant door 322 that opens downward, and a fire extinguisher door 323 that opens laterally, are also panels provided on the front surface of the housing 31 and are the front panel 32. The maintenance door 321 is provided with a hinge (not shown) at the upper part, and the lower end moves forward and upward to open. The fire hydrant door 322 is provided with a hinge (not shown) at the lower part, is a front-tilting type, and the upper end moves forward and downward to tilt forward and open. The fire extinguisher door 323 is provided with a hinge (not shown) at the side part, and the right end moves forward and leftward to open. Inside the housing 31, a fire hose (not shown) and a fire hydrant valve (not shown) are stored in the hose storage part inside the fire hydrant door 322. Also, a fire extinguisher (not shown) is stored in the fire extinguisher storage part inside the fire extinguisher door 323. In the fire hydrant device 3 of FIG. 5, a fire detector 34 is provided on the right side of the maintenance door 321, and a red indicator lamp 33 is provided on the fire extinguisher door 323. The red indicator lamp 33 is the same as the red indicator lamp 13 of Example 1 whose cross-section is shown in FIG. 2.
[0021] In Example 3, the fire detector 34 has a shape protruding from the maintenance door 321, but as shown in FIG. 2, the red indicator lamp 33 does not protrude from the fire extinguisher door 323. In FIG. 5, a tangent line connecting the outer periphery of the red indicator lamp 33 from the infrared sensor of the fire detector 34 is shown by a dotted line. The fire detector 34 senses infrared rays generated by a fire, but since the red indicator lamp 33 does not protrude from the front panel 32, as shown in FIG. 5, there is no insensitive region D as shown by the hatching in FIG. 1 in the fire detector 34.
Example
[0022] Next, the front view of the fire hydrant device 4 of Example 4 is shown with reference to FIGS. 6 and 7. The fire hydrant device 4 of Example 4 has a front panel 42 on the front surface of a box-shaped housing 41. Three doors, namely a maintenance door 421 that opens upward by a hinge, a fire hydrant door 422 that opens downward, and a fire extinguisher door 423 that opens laterally, are also panels provided on the front surface of the housing 41 and are the front panel 42. The maintenance door 421 is provided with a hinge (not shown) at the upper part, and its lower end moves forward and upward to open. The fire hydrant door 422 is provided with a hinge (not shown) at the lower part, is a forward-tilting type, and its upper end moves forward and downward to tilt forward and open. The fire extinguisher door 423 is provided with a hinge (not shown) at the side part, and its right end moves forward and leftward to open. Inside the housing 41, in the hose storage part inside the fire hydrant door 422, a fire hose 45 (see FIG. 7) and a fire hydrant valve (not shown) are stored. Also, a fire extinguisher (not shown) is stored in the fire extinguisher storage part inside the fire extinguisher door 423. In the fire hydrant device 4 of FIG. 6, a fire detector 44 is provided on the right side of the maintenance door 421, and a red indicator light 43 is provided on the fire hydrant door 422.
[0023] In Example 4, the fire detector 44 has a shape protruding from the maintenance door 421. However, as shown in the cross-section of FIG. 2, the red indicator light 43 does not protrude from the fire hydrant door 422. In FIG. 6, a tangent line connecting the outer periphery of the red indicator light 43 from the infrared sensor of the fire detector 44 is shown as a dotted line. The fire detector 44 senses the infrared rays generated by a fire. However, since the red indicator light 43 does not protrude from the fire hydrant door 422, as shown in FIG. 6, there is no insensitive region D as shown by the diagonal lines in FIG. 1 in the fire detector 44.
[0024] In FIG. 7, a front view of the fire hydrant door 422 of the fire hydrant device 4 of Example 4 shown in FIG. 6 in an open state is shown. The fire hydrant door 422 is provided with (not shown), is a forward-tilting type, and its upper end moves forward and downward to tilt forward and open. FIG. 7 shows the fire hydrant door 422 of FIG. 6 opened by pulling the upper part forward, and the fire hydrant door 422 has fallen forward under the fire hydrant device 4. And in the housing 41, in the hose storage part at the back, the fire hose 45 is stored. The fire hose 45 can be taken out from the hose storage part during fire extinguishing.
[0025] In FIG. 6, at the upper end of the fire hydrant door 422, the plate forming the front surface of the fire hydrant door 422 is folded back rearward to obtain strength so that the door does not warp. The red indicator light 43 shown by a dotted line in FIG. 7 is hidden in a thickened portion formed by the folding back of the plate provided at the end of the fire hydrant door 422. Since the red indicator light 43 is a flat type provided flush with the fire hydrant door 422 which is the front panel 42, it does not protrude downward in FIG. 7 when the fire hydrant door 422 is opened. Therefore, when the fire hydrant door 422 is opened, the red indicator light 43 is less likely to collide with other members and is of a structure that is not easily damaged.
Example
[0026] Fig. 8 shows a front view of the fire hydrant device 5 of Example 5. The fire hydrant device 5 of Example 5 has a front panel 52 on the front surface of a box-shaped housing 51. Three doors, namely a maintenance door 521 that opens upward by a hinge, a fire hydrant door 522 that opens downward, and a fire extinguisher door 523 that opens laterally, are also panels provided on the front surface of the housing 51 and are the front panel 52. The maintenance door 521 is provided with a hinge (not shown) at the upper part, and the lower end moves forward and upward to open. The fire hydrant door 522 is provided with a hinge (not shown) at the lower part, is a front-tilting type, and the upper end moves forward and downward to tilt forward and open. The fire extinguisher door 523 is provided with a hinge (not shown) at the side part, and the right end moves forward and leftward to open. Inside the housing 51, a fire hose (not shown) and a fire hydrant valve (not shown) are stored in the hose storage part inside the fire hydrant door 522. Also, a fire extinguisher (not shown) is stored in the fire extinguisher storage part inside the fire extinguisher door 523. In the fire hydrant device 5 of Fig. 8, a fire detector 54 and a red indicator light 53 located above the fire detector 54 are provided on the right side of the maintenance door 521. The red indicator light 53 is the same as the red indicator light 13 of Example 1 whose cross-section is shown in Fig. 2.
[0027] In Example 5, the fire detector 54 has a shape protruding from the maintenance door 521, but as shown in Fig. 2, the red indicator light 53 does not protrude from the maintenance door 521. In Fig. 8, a tangent line connecting the outer periphery of the red indicator light 53 from the infrared sensor of the fire detector 54 is shown by a dotted line. The fire detector 54 senses the infrared rays generated by a fire, but the red indicator light 53 does not protrude from the front panel 52. Therefore, as shown in Fig. 8, an insensitive region D as shown by the hatching in Fig. 1 does not occur in the fire detector 54 even though the red indicator light 53 and the fire detector 54 are close to each other.
Example
[0028] Fig. 9 shows a front view of the fire hydrant device 6 of Example 6. The fire hydrant device 6 of Example 6 has a front panel 62 on the front surface of a box-shaped housing 61. Three doors, a maintenance door 621 that opens upward by a hinge, a fire hydrant door 622 that opens downward, and a fire extinguisher door 623 that opens laterally, are also panels provided on the front surface of the housing 61 and are the front panel 62. The maintenance door 621 is provided with a hinge (not shown) at the upper part, and the lower end moves forward and upward to open. The fire hydrant door 622 is provided with a hinge (not shown) at the lower part, is a front-tilting type, and the upper end moves forward and downward to tilt forward and open. The fire extinguisher door 623 is provided with a hinge (not shown) at the side part, and the right end moves forward and leftward to open. Inside the housing 61, a fire hose (not shown) and a fire hydrant valve (not shown) are stored in the hose storage part inside the fire hydrant door 622. Also, a fire extinguisher (not shown) is stored in the fire extinguisher storage part inside the fire extinguisher door 623. In the fire hydrant device 6 of Example 6 shown in Fig. 9, a fire detector 64 is provided on the front panel 62 between the maintenance door 621 and the fire extinguisher door 623, and a red indicator light 63 is provided on the fire extinguisher door 623 near it. The red indicator light 63 is the same as the red indicator light 13 of Example 1 whose cross-section is shown in Fig. 2.
[0029] In Example 6, the fire detector 64 has a shape protruding from the front panel 62. However, as shown in Fig. 2, the red indicator light 63 does not protrude from the fire extinguisher door 623. In Fig. 9, a tangent line connecting the outer periphery of the red indicator light 63 from the infrared sensor of the fire detector 64 is shown by a dotted line. The fire detector 64 senses the infrared rays generated by a fire, but the red indicator light 63 does not protrude from the front panel 62. Therefore, as shown in Fig. 9, an insensitive region D as shown by the slashes in Fig. 1 does not occur in the fire detector 64 even though the red indicator light 63 and the fire detector 64 are close to each other.
[0030] When using a red indicator light that protrudes from the front panel, as in Embodiments 5 and 6, when the red indicator light is close to the fire detector, the insensitive region D of the fire detector becomes larger. However, by using a red indicator light that does not protrude from the front panel, even if the red indicator light and the fire detector are arranged close to each other, the insensitive region D will not occur, and a high degree of freedom can be given to the arrangement of the red indicator light and the fire detector in the fire hydrant device.
[0031] In the embodiment, the fire hydrant device provided in the tunnel has been described, but the above technology may also be used for fire hydrant devices installed in buildings, underground shopping streets, etc.
[0032] In the embodiment, the fire detector is attached to the front panel and protrudes forward, and the red indicator light has no part that protrudes in front of the front panel. However, a flat red indicator light may be provided by slightly protruding from the front panel within a range that does not affect the detection range of the fire detector. Also, in the embodiment, one fire detector and one red indicator light are provided. However, the number of fire detectors and red indicator lights provided in the fire hydrant device is not limited to this. For example, two red indicator lights may be provided in one fire hydrant device. In this case, a fire detector may be provided between the two horizontally arranged red indicator lights. Generally, the size of the red indicator light is smaller than the size of the fire detector, but it is not limited to this size, and a red indicator light that is larger than the fire detector and does not protrude from the front panel may be provided in the fire hydrant device.
[0033] In addition, the specific configuration is not limited to the embodiment, and design changes and the like within the scope not departing from the gist of the present invention are also included in the present invention. Also, the above-described embodiments and modification examples can be combined by diverting each other's technologies as long as there are no particular contradictions or problems in their purposes and configurations.
Explanation of Reference Signs
[0034] D Insensitive region, 1 Fire hydrant device, 11 housing, 12 front panel, 121 maintenance door, 122 fire hydrant door, 123 fire extinguisher door, 13 red indicator light, 131 main body, 132 display panel, 133 diffuser plate, 134 light-emitting element substrate, 135 connection terminal, 136 wiring, 14 fire detector, 2 Red indicator light, 21 main body, 22 front panel, 23 light guide ring, 23a tapered surface, 24 light-emitting element, 25 connection terminal, 3 Fire hydrant device, 31 housing, 32 front panel, 321 maintenance door, 322 fire hydrant door, 323 fire extinguisher door, 33 red indicator light, 34 fire detector, 4 Fire hydrant device, 41 housing, 42 front panel, 421 maintenance door, 422 fire hydrant door, 423 fire extinguisher door, 43 red indicator light, 44 fire detector, 45 fire hose, 5 Fire hydrant device, 51 housing, 52 front panel, 521 maintenance door, 522 fire hydrant door, 523 fire extinguisher door, 53 red indicator light, 54 fire detector, 6 Fire hydrant device, 61 housing, 62 front panel, 621 maintenance door, 622 fire hydrant door, 623 fire extinguisher door, 63 red indicator light, 64 fire detector, 7 Fire hydrant device, 71 housing, 72 front panel, 721 maintenance door, 722 fire hydrant door, 723 fire extinguisher door, 73 red indicator light, 74 fire detector
Claims
1. A box-shaped housing, A front panel on the front surface of the housing, A fire hose stored in a hose storage section within the housing, A red indicator light that does not protrude from the front panel, A fire detector provided on the front panel, A fire hydrant device characterized by comprising the above.
2. The fire hydrant device according to claim 1, wherein the red indicator light is provided on a door of the housing.
3. The fire hydrant device according to claim 2, wherein the door on which the red indicator light is provided is provided in the hose storage section, is a forward-tilting type, and opens downward.
4. The fire hydrant device according to claim 2, wherein the door on which the red indicator light is provided is provided in a fire extinguisher storage section for storing a fire extinguisher.
5. The fire hydrant device according to any one of claims 1 to 4, wherein the red indicator light is provided below the fire detector.
Citation Information
Patent Citations
Magnetic recording and reproducing device
JP1985095754A