Deflector insertion mechanism, fire extinguishing system equipped with the deflector insertion mechanism

Abstract

To provide a deflector insertion mechanism for inserting a deflector into a water discharge track so as not to form a gap between the deflector and a tip of a water discharge nozzle, and a fire extinguisher including the deflector insertion mechanism.SOLUTION: A deflector insertion mechanism 1 comprises: a cylinder mechanism 19 whose one end side is attached to a fire extinguisher 5 so as to be lifted up and down and whose other side includes a rod 31 capable of moving forward and backward; a deflector holding member 21 including a stationary part 37 to be fixed to a deflector 3, and an arm part 39 protruding upward from the stationary part 37 and including an upper end side rotationally attached to a tip part of a cylinder rod 31, and causing the cylinder rod 31 to hold the deflector 3; and a guide member 23 provided to straddle both a water discharge nozzle 7 of the fire extinguisher 5 and the deflector 3, and when the rod 31 extends, guiding the deflector 3 in such a manner that the back surface 43 of the deflector 3 faces an outlet 10 and is brought into close contact therewith.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a deflector inserting mechanism that inserts a deflector for changing a water discharge distance or the like into a water discharge trajectory of a water discharge nozzle, and a fire extinguishing apparatus provided with the deflector inserting mechanism. [Background Art]

[0002] Regarding a deflector inserting mechanism that inserts a deflector for changing a water discharge distance or the like into a water discharge trajectory of a water discharge nozzle, for example, the driving mechanism applied to the fire extinguishing apparatus of Patent Document 1 can be mentioned. The driving mechanism of Patent Document 1 moves a deflector having a U-shaped cross section from above a water discharge nozzle so as to draw a circular trajectory and inserts the deflector into the water discharge trajectory. [Prior Art Documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Unexamined Patent Application Publication No. 2019-170652 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] When the deflector is moved to draw a circular trajectory and inserted into the water discharge trajectory as in the driving mechanism disclosed in Patent Document 1, a gap is formed between the tip end of the water discharge nozzle and the deflector. For this reason, in Patent Document 1, in order to prevent water from being sprayed laterally through the gap, side wall portions are provided so as to cover the collision surface portion from both sides. However, when there is a gap between the tip end of the water discharge nozzle and the collision surface of the deflector, there has been a problem that water discharge control by the deflector cannot be accurately performed as intended.

[0005] The present invention was made to solve the above problems, and aims to provide a deflector insertion mechanism for inserting a deflector into the water discharge trajectory so as not to create a gap between the deflector and the tip of the water discharge nozzle, and a fire extinguishing device equipped with the deflector insertion mechanism. [Means for solving the problem]

[0006] (1) The deflector insertion mechanism according to the present invention inserts a deflector that controls the water discharge distance and range into the water discharge trajectory of a fire extinguishing system, A cylinder mechanism having one end attached to the fire extinguishing device so as to be able to be tilted up and down, and the other end having a rod that can move back and forth, A deflector holding member having a fixing portion fixed to the deflector and an arm portion that protrudes upward from the fixing portion and whose upper end is rotatably attached to the tip of the cylinder rod, the deflector holding member holding the deflector on the cylinder rod, The fire extinguishing device is characterized by comprising a guide member that spans both the water discharge nozzle and the deflector, and guides the deflector so that when the rod extends, the back surface of the deflector faces directly and in close contact with the water discharge port.

[0007] (2) Furthermore, in the case described in (1) above, the guide member is characterized by having a guide plate in which a guide groove is formed and a protruding guide portion that protrudes from the side surface of the deflector and is movably inserted into the guide groove.

[0008] (3) Furthermore, in the device described in (1) above, the guide member is characterized in that one end is rotatably attached to the water discharge nozzle and the other end is rotatably attached to the side surface of the deflector.

[0009] (4) Furthermore, the fire extinguishing system according to the present invention identifies the location of the fire source with a fire detection sensor and discharges water from a water nozzle towards the fire source via a deflector, The invention is characterized by being equipped with a deflector insertion mechanism as described in any of (1) to (3) above. [Effects of the Invention]

[0010] According to the deflector insertion mechanism of the present invention, the deflector can be moved so that the back of the deflector is positioned without any gap between it and the discharge port, allowing almost all of the fire extinguishing water to be injected into the inside of the deflector. As a result, it becomes possible to accurately control and direct the intended water discharge from the long-range discharge port and the medium-to-short-range discharge port formed in the deflector. [Brief explanation of the drawing]

[0011] [Figure 1] This is a perspective view of a fire extinguishing device equipped with a deflector insertion mechanism according to Embodiment 1. [Figure 2] This is a side view (part 1) of a fire extinguishing device equipped with a deflector insertion mechanism according to Embodiment 1. [Figure 3] This is a perspective view of the deflector according to Embodiment 1, as seen from the front. [Figure 4] This is a perspective view of the deflector according to Embodiment 1, as seen from the rear side. [Figure 5] Figure 5(a) is a front view of the deflector according to Embodiment 1, and Figure 5(b) is a cross-sectional view taken along arrow AA. [Figure 6] This is a side view (part 2) of a fire extinguishing device equipped with a deflector insertion mechanism according to Embodiment 1. [Figure 7] This is a side view (part 3) of a fire extinguishing device equipped with a deflector insertion mechanism according to Embodiment 1. [Figure 8] This is a cross-sectional view of a fire extinguishing device equipped with a deflector insertion mechanism according to Embodiment 1. [Figure 9] This is a perspective view of a fire extinguishing device equipped with a deflector insertion mechanism according to Embodiment 2. [Figure 10] This is a side view (part 1) of a fire extinguishing device equipped with a deflector insertion mechanism according to Embodiment 2. [Figure 11]It is a side view (Part 2) of a fire extinguishing apparatus provided with a deflector insertion mechanism according to Embodiment 2. [Figure 12] It is a side view (Part 3) of a fire extinguishing apparatus provided with a deflector insertion mechanism according to Embodiment 2. Mode for Carrying Out the Invention

[0012] Embodiment 1 A deflector insertion mechanism 1 according to an embodiment of the present invention inserts a deflector 3, which controls a water discharge distance and a range, into the water discharge trajectory of a fire extinguishing apparatus 5. The fire extinguishing apparatus 5 and the deflector insertion mechanism 1 will be described with reference to FIGS. 1 to 7.

[0013] <Fire Extinguishing Apparatus> The fire extinguishing apparatus 5 includes a water discharge nozzle 7 and a turning mechanism 9 that turns the water discharge nozzle 7. The turning angle and stop position of the water discharge nozzle 7 are adjusted by controlling a turning motor based on information from an encoder (not shown).

[0014] <Deflector> The deflector 3 is disposed on the water discharge trajectory of the water discharge nozzle 7 to change the water discharge distance, range and the like. Although the shape and the like of the deflector 3 are not particularly limited, the deflector 3 of the present embodiment has a hollow box-shaped interior as shown in FIGS. 3 to 5 (see FIG. 5(b)), and includes: a water injection port 11 (see FIG. 4) to which the water discharge port 10 of the water discharge nozzle 7 is closely attached for water injection; a distant water discharge port 13 (see FIGS. 3 and 5) which has an opening area smaller than that of the water injection port 11, communicates with the water injection port 11, and discharges injected fire extinguishing water to a distant place; and a plurality of slits 15 (see FIGS. 3 and 5) serving as medium and short distance water discharge ports that are provided on a wall surface below a water injection position and discharge injected fire extinguishing water to medium and short distances, and a back opening 17.

[0015] In the deflector 3 described above, part of the fire extinguishing water injected from the water injection port 11 is discharged toward a distant place from the distant water discharge port 13. In addition, the remaining firefighting water is discharged from the slits 15 and the rear opening 17 to medium and short distances. Specifically, water is discharged downwards, including directly below, from the slits 15 formed on the lower surface of the deflector 3, and water is discharged further to the rear than directly below from the rear opening 17. Thus, according to the deflector 3 of this embodiment, water can be discharged at long distances, medium distances, and short distances (including directly below and behind).

[0016] <Deflector insertion mechanism> As shown in Figures 1 and 2, the deflector insertion mechanism 1 comprises a cylinder mechanism 19, a deflector holding member 21 (see Figures 3 to 5), and a guide member 23.

[0017] Cylinder mechanism The cylinder mechanism 19 includes a drive mechanism 25 for extending and retracting the rod 31, a support part 27 for supporting the cylinder mechanism 19 on the fire extinguishing device 5 so that it can be tilted up and down, a cylinder part 29, and a rod 31. The drive mechanism 25 is composed of a motor (not shown) and other components, and extends and retracts the rod 31. The support section 27 consists of a support shaft 33 perpendicular to the cylinder axis and a bearing section 35 that rotatably supports the support shaft 33. By being supported and rotating on the support shaft 33, the entire cylinder mechanism 19 moves up and down. The cylinder section 29 is the part in which the rod 31 is housed. The rod 31 extends and retracts from the cylinder portion 29. Figure 1 shows the rod 31 in its most retracted state, and Figure 2 shows the rod 31 in its most extended state.

[0018] 《Deflector holding member》 As shown in Figure 3, the deflector holding member 21 comprises a fixing portion 37 fixed to the upper surface of the deflector 3 and a pair of left and right arm portions 39 protruding upward from the fixing portion 37, with an axial hole 40 provided at the upper end of each arm portion 39. A pivot shaft 41 is provided at the tip of the rod 31, protruding in a direction perpendicular to the rod axis. The axial hole 40 of the arm portion 39 is rotatably inserted into the pivot shaft 41, thereby rotatably holding the deflector 3 at the tip of the rod. The fixing part 37 may be separate from or integrated with the deflector 3.

[0019] Guide component The guide member 23 is provided so as to straddle both the water discharge nozzle 7 and the deflector 3 of the fire extinguishing device 5, and guides the deflector 3 so that when the rod 31 extends, the back portion 43 of the deflector 3 faces directly in close contact with the water discharge port 10. The guide member 23 comprises a guide plate 47 (see Figures 1 and 2) with a guide groove 45 formed therein, and a protruding guide portion 49 that protrudes from the side of the deflector 3 and is inserted into the guide groove 45. The protruding guide portion 49 is provided with a roller 51 to facilitate smooth movement within the guide groove 45.

[0020] The guide plate 47 consists of a pair of rectangular plates that are positioned to sandwich the water discharge nozzle 7 from both sides. The guide groove 45, when the guide plate 47 is attached to the water discharge nozzle 7, has a portion A that extends diagonally downward, a portion B that bends downward following this, and a portion C that extends further downward.

[0021] The operation of the fire extinguishing device 5 equipped with the deflector insertion mechanism 1 described above will be explained. When the location of the fire source is identified by a fire detection sensor (not shown), the swivel mechanism 9 is activated and the water discharge nozzle 7 swivels toward the fire source. In the initial state, the deflector 3 does not cover the water outlet 10 of the water nozzle 7, as shown in Figure 2. This is the state for spraying water to the furthest distance (farthest-range water spraying), and water is sprayed in this state when the identified fire source is far away. In this case, for example, the water spraying range is 60m to 30m in front of the water nozzle 7.

[0022] On the other hand, when the identified fire source is a little further away, the deflector insertion mechanism 1 is driven to bring the deflector 3 into close contact with the water outlet 10 of the water nozzle 7, as shown in Figure 1. The movement of the deflector 3 at this time will be explained based on Figures 6 to 8. When the rod 31 extends slightly from the state shown in Figure 1, the protruding guide portion 49 moves along the guide groove 45, and consequently the deflector 3 rotates downward, and the cylinder mechanism 19 also rotates so that its tip points downward (see Figure 6).

[0023] As the rod 31 extends further, the protruding guide portion 49 moves downward along the guide groove 45, and consequently the deflector 3 rotates further so that the rear portion 43 comes into close contact with the water outlet 10 of the water nozzle 7. At this time, the discharge port 10 is located at the water inlet 11 of the deflector 3 (see Figure 8). When water is discharged in this state, there is no gap between the tip of the water discharge nozzle 7 and the deflector 3, so almost all of the fire extinguishing water is guided into the deflector 3. Some of it is discharged over long distances from the long-distance discharge port 13, and the remaining fire extinguishing water that has been injected into the deflector 3 is discharged from the slit 15 and the rear opening 17, which are the medium-to-short-range discharge ports. In this case, the water discharge range is within 30m from the water discharge nozzle 7, including the area behind the nozzle 7.

[0024] To move the deflector 3 away from the water outlet 10, the rod 31 can be retracted, which is the reverse of the above operation and returns the state to that shown in Figure 1.

[0025] As described above, according to this embodiment, the deflector 3 moves and comes into close contact with the water outlet 10 of the water nozzle 7, so there is no gap between the deflector 3 and the water nozzle 7, and almost all of the fire extinguishing water can be guided into the inside of the deflector 3. For this reason, it becomes possible to precisely control the water discharge from the long-range water outlet 13 and the medium-to-short-range water outlet formed in the deflector 3. Although the above example shows a water discharge range of 60m or less, the water discharge range is also affected by the installation height of the fire extinguishing device 5, so it should be set as appropriate and is not limited to this.

[0026] [Embodiment 2] In Embodiment 1, the guide member 23 constituting the deflector insertion mechanism 1 was composed of a guide plate 47 and a protruding guide portion 49, but in this embodiment, this guide member 23 is composed of a link mechanism 53. The guide member 23 of Embodiment 2 will be described below with reference to Figures 9 to 12, but the same reference numerals will be used for parts that are the same as those in Embodiment 1, and their descriptions will be omitted.

[0027] As shown in Figures 9 and 10, the link mechanism 53 constituting the guide member 23 of this embodiment consists of a pair of short links 55, one end of which is rotatably attached to both sides of the leading edge of the water discharge nozzle 7 and the other end to both sides of the lower part of the deflector 3, and a pair of long links 57, one end of which is rotatably attached to both sides of the rear end of the water discharge nozzle 7 and the other end to both sides of the upper part of the deflector 3. The other end of the short link 55 is attached to the side of the deflector 3, closer to the rear, and the other end of the long link 57 is attached to the side of the deflector 3, closer to the front. Furthermore, although the water discharge nozzle 7 of this second embodiment differs in shape from that of the first embodiment in that it is fitted with a short link 55 and a long link 57, its function in terms of water discharge is exactly the same.

[0028] The operation of the deflector insertion mechanism 1 of this embodiment, configured as described above, will now be explained. When the deflector 3 is not covering the discharge port 10 of the water discharge nozzle 7, as shown in Figures 9 and 10, the rod 31 is most retracted, and both the short link 55 and the long link 57 are in a nearly upright position. As the rod 31 extends slightly from the state shown in Figures 9 and 10, the deflector 3 is pushed by the rod 31 and guided by the link mechanism 53 to rotate clockwise, and the cylinder mechanism 19 also rotates so that its tip points downward. In this way, as the rod 31 extends, a series of movements, including the downward movement of the tip of the cylinder mechanism 19 and the rotation of the short link 55 and long link 57 in the link mechanism 53, cause the back portion 43 of the deflector 3 to gradually change its orientation so that it faces the water outlet 10 of the water nozzle 7 directly.

[0029] As the rod 31 extends further, the deflector 3 moves toward the water outlet 10, as shown in Figure 12, and the rear portion 43 comes into close contact with the water nozzle 7 in a direct position. In this state, similar to Figure 8 of Embodiment 1, the water outlet 10 is located at the water inlet 11 of the deflector 3.

[0030] As described above, in this embodiment as well, similar to Embodiment 1, the deflector 3 can be moved from a state in which it does not cover the water outlet 10 to a state in which the back portion 43 of the deflector 3 is in close contact with the water outlet 10, thereby achieving the same effects as in Embodiment 1. [Explanation of symbols]

[0031] 1. Deflector insertion mechanism 3 Deflectors 5 Fire extinguishing equipment 7. Water nozzle 9. Swivel mechanism 10 Water outlet 11 Water inlet 13 Distance water outlet 15 slits 17 Rear opening 19 Cylinder mechanism 21 Deflector holding member 23 Guide member 25 Drive mechanism 27 Support part 29 Cylinder section 31 Rods 33 Support shaft 35 Bearing section 37 Fixed part 39 Arm 40 shaft holes 41. Rotary shaft 43 Rear part 45 Guide grooves 47 Guide Plate 49. Protruding guide section 51 Laura 53 Link Mechanism 55 Short Links 57 Long links

Claims

1. A deflector insertion mechanism for inserting a deflector, which controls the distance and range of water discharge, into the water discharge trajectory of a fire extinguishing system, A cylinder mechanism having one end attached to the fire extinguishing device so as to be able to be tilted up and down, and the other end having a rod that can move back and forth, A deflector holding member having a fixing portion fixed to the deflector and an arm portion that protrudes upward from the fixing portion and whose upper end is rotatably attached to the tip of the cylinder rod, the deflector holding member holding the deflector on the cylinder rod, A deflector insertion mechanism comprising: a guide member provided to straddle both the water discharge nozzle and the deflector of the fire extinguishing device, and which guides the deflector so that when the rod extends, the back surface of the deflector faces directly and in close contact with the water discharge port of the water discharge nozzle.

2. The deflector insertion mechanism according to claim 1, characterized in that the guide member has a guide plate in which a guide groove is formed, and a protruding guide portion that protrudes from the side surface of the deflector and is movably inserted into the guide groove.

3. The deflector insertion mechanism according to claim 1, characterized in that the guide member is a link mechanism in which one end is rotatably attached to the water discharge nozzle and the other end is rotatably attached to the side surface of the deflector.

4. A fire extinguishing system that identifies the location of the fire source using a fire detection sensor and discharges water from a water nozzle towards the fire source via a deflector, A fire extinguishing device characterized by comprising a deflector insertion mechanism according to any one of claims 1 to 3.

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