JP2018057470A - Fire-fighting/self-defence spray joint and joint set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire-fighting/self-defence spray joint and joint set capable of easily performing a switching operation in a self-defence spray direction and further easily performing an on/off operation of the spray.SOLUTION: The fire-fighting/self-defence spray joint includes: a joint duct 100 having a main stream passage 110 of fluid and a branch passage 120 in a radial direction; a rotary frame 200 that includes an intermediate storage part 210 around the periphery of the joint duct 100 to be covered thereby, consists of an annular body that is mounted so as to freely rotate in the circumferential direction, and has a guide passage 220 extending from the intermediate storage part to the annular body outer peripheral side; and a nozzle spray device 300 with an opening/closing mechanism that is a part of the outer peripheral surface of the rotary frame 200, communicably connected to the guide passage 220, and can spray radially outward from the nozzle. The distribution fluid from the branch passage 120 is guided from the intermediate storage part 210 to the guide passage 220 and sprayed from the nozzle spray device 300 so as to perform the self-defence spray outward the distribution passage diameter intersecting with the main stream direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a firefighting self-defense spray joint and a joint set attached to a firefighting nozzle.

  When firefighters perform fire extinguishing activities on the ground, such as fires, fire extinguishing activities are carried out while forming a water film called self-defense spray as well as water discharge for fire suppression and fire spread prevention. This self-defense spray not only protects firefighters who operate firefighting nozzles, but also protects those who blame in the event of a fire by spraying fire-fighting water radially from the firefighting nozzles to form a water film. And firefighters can safely perform fire fighting activities.

  For example, in Patent Document 1, when the grip portion of a fire-fighting nozzle is moved rearward in the axial direction with respect to the nozzle outer tube portion, the self-defense water discharge passage is communicated with the outside, and one of the pressure-extinguishing water flowing through the flow passage. A fire-fighting nozzle configured to discharge water in a direction orthogonal to the axial direction of the fire-fighting nozzle through a self-defense water discharge nozzle is disclosed.

JP2015-157030A

It is desirable that the flow rate and spray direction of self-defense spray can be controlled according to the situation of the fire extinguishing site.
However, the conventional fire-fighting nozzle has a problem that the self-defense spray operation is troublesome and the self-defense spray direction cannot be switched or is difficult.
The present invention has been made in view of such circumstances, and it is possible to easily perform the switching operation of the self-defense spray direction, and further to perform the spray on / off operation easily. The purpose is to provide a set.

  In order to solve the above problems, the spray joint for firefighting self-defense according to the present invention has the following configuration. That is, the fire-fighting self-defense spray joint according to the present invention covers a joint pipe having a main flow passage for the fluid and having a branch passage in the radial direction, and an intermediate reservoir around the joint pipe. A rotating frame having a guiding path extending from the intermediate storage portion to the outer periphery of the annular body, and a part of the outer peripheral surface of the rotating frame. A nozzle sprayer with an opening / closing mechanism, which is connected to the guide path and can spray the nozzle radially outward, and guides the fluid flowing from the branch path from the intermediate storage section to the guide path. By spraying from the sprayer, self-defense spraying is performed to the outside of the flow passage diameter intersecting with the main distribution direction.

  According to the above configuration, since the rotating frame having the nozzle sprayer that sprays the fluid radially outward is mounted so as to be freely rotatable in the circumferential direction, just by changing the rotation phase of the rotating frame, the face direction spraying, Switching operation of the self-defense spray direction such as the foot direction spray can be easily performed. Further, since the nozzle sprayer with an opening / closing mechanism is projected in the circumferential direction of the outer peripheral surface of the rotating frame, the self-defense spray can be easily turned on / off.

  Further, in the fire joint self-defense spray joint described above or below, a plurality of the nozzle sprayers are provided at different phase positions of the rotary frame, and any two of the plurality of nozzle sprayers are grounded to make a nozzle sprayer. It is preferable to arrange so that the whole can stand on its own.

  According to the above configuration, a plurality of nozzle sprayers are provided at different phase positions of the rotary frame, and any two of the plurality of nozzle sprayers are arranged so as to be grounded, so that the fire-fighting nozzle is stably grounded. Etc. can be mounted. For this reason, even if the fire-fighting nozzle is placed on the ground or the like with the water discharged, the fire-fighting nozzle will not be violated, and the fire-fighting nozzle can be safely placed.

  Further, in any one of the firefighting self-defense spray joints, the nozzle sprayer includes a substantially columnar nozzle body capable of ejecting the fluid from the tip, and a rotation attached coaxially to a peripheral portion of the nozzle body. And an opening / closing mechanism including an operation unit.

  According to said structure, the on / off operation of self-defense spray can be easily performed by opening and closing the opening / closing mechanism which consists of a rotation operation part.

  In addition, the joint set according to the present invention is detachable from a joint pipe, a rotary frame that covers the joint pipe and has a plurality of radial connection holes, and any one of the connection holes of the rotary frame. A nozzle sprayer to be mounted and a nozzle sprayer plug to be detachably mounted on the rotating frame.

  According to the above configuration, the rotary frame that is covered with the joint pipe and has a plurality of radial connection holes, the nozzle sprayer that is detachably attached to any connection hole of the rotary frame, and the rotary frame Since the nozzle sprayer plug is detachably mounted, the switching operation of the self-defense spray direction can be easily performed. Moreover, the self-defense spray of an unnecessary direction can be suppressed by mounting | wearing a connection hole with a nozzle sprayer plug.

  According to the spray joint and joint set for fire fighting self-defense of the present invention, the switching operation of the self-defense spray direction can be easily performed, and further the spray on / off operation can be easily performed.

It is a side view which shows the structure of the self-defense spray joint for fire fighters in embodiment of this invention. It is a front view which shows the structure of the self-defense spray joint for fire fighters in embodiment of this invention. It is a partial sectional view showing composition of a self-defense spray joint for fire fighting in an embodiment of the invention. It is sectional drawing which shows the structure of the nozzle sprayer in embodiment of this invention. It is a front view which shows the example which attached the nozzle sprayer plug to the self defense spray joint for fire fighting in embodiment of this invention. It is sectional drawing which shows the example of attachment of the nozzle sprayer in other embodiment of this invention. It is a side view which shows the example of attachment of the nozzle sprayer in other embodiment of this invention.

<Embodiment>
Hereinafter, with reference to FIGS. 1-4, the structure of the self-defense spray joint 1 for firefighting in embodiment of this invention is demonstrated. In the following description, the numeral string described after the configuration name is a reference symbol for understanding with reference to the corresponding configuration of the embodiment of the drawings, and thereby the configuration itself is limited to the illustrated one or has significance. It is not limited.
FIG. 1 is a side view showing a configuration of a firefighting self-defense spray joint 1 according to an embodiment of the present invention. FIG. 2 is a front view showing the configuration of the firefighting self-defense spray joint 1 according to the embodiment of the present invention. FIG. 3 is a partial cross-sectional view showing the configuration of the firefighting self-defense spray joint 1 according to the embodiment of the present invention. FIG. 4 is a cross-sectional view showing the configuration of the nozzle sprayer 300 in the embodiment of the present invention.

  The firefighting self-defense spray joint 1 according to the first embodiment of the present invention is attached to a firefighting nozzle 2 as shown in FIG. 1 and is called self-defense spray when a firefighter performs a fire extinguishing activity at a site such as a fire. Used to form a water film. By performing self-defense spraying using the self-defense spray joint 1 for fire fighting, it is possible to protect not only firefighters who operate the nozzle 2 for fire fighting but also those who blame in the event of a fire.

As shown in FIGS. 1 to 3, the firefighting self-defense spray joint 1 includes a joint pipe line 100, a rotary frame 200, and a nozzle sprayer 300. The joint pipe line 100 is connected to the fire-fighting nozzle 2,
It has a main flow path 110 for a fire-extinguishing fluid (for example, water) supplied to the fire-fighting nozzle 2 and a branch path 120 in the radial direction.

  The rotary frame 200 is covered with an intermediate storage portion 210 around the joint pipe line 100, and is composed of an annular body that can be freely rotated in the circumferential direction, and extends from the intermediate storage portion 210 to the outer periphery side of the annular body. A guide path 220 is provided. As shown in FIG. 2, grooves 200 </ b> G are provided in the circumferential direction on both sides of the inner peripheral surface 200 </ b> B of the rotary frame 200. A sealing O-ring 230 is attached to the groove 200G to prevent water leakage from the gap between the joint conduit 100 and the rotary frame 200.

  In the central portion of the inner peripheral surface 200B of the rotary frame 200, a concave portion recessed outward is formed in the circumferential direction, and the intermediate storage portion 210 is formed by the concave portion and the outer peripheral surface 100A of the joint pipe line 100. Is formed. Further, the rotary frame 200 has a plurality of guide paths 220 at different phase positions in the circumferential direction.

  The nozzle sprayer 300 constitutes a part of the outer peripheral surface 200 </ b> A of the rotary frame 200 and is connected to a plurality of guide paths 220 included in the rotary frame 200. Here, any two nozzle sprayers 300 among the nozzle sprayers 300 connected in communication with the plurality of guide paths 220 are arranged to be grounded.

  The nozzle sprayer 300 includes a substantially columnar nozzle main body 310 that can eject a fluid from its tip, and an opening / closing mechanism 320 that includes a rotation operation unit that is coaxially and rotatably attached to a peripheral portion of the nozzle main body 310. The nozzle body 310 has a fluid passage 311 inside, and the passage 311 is connected to the guide passage 220 of the rotary frame 200 so that the fluid is sprayed to the outside of the firefighting self-defense spray joint 1 in the radial direction. Can do.

  Further, at least a part of the outer peripheral surface 310A of the nozzle body 310 is provided with a spiral groove 310G for rotating the opening / closing mechanism 320. Further, grooves 313 and 314 are provided in the head 312 and the outer peripheral surface 310A of the nozzle main body 310, and O-rings 315 and 316 for sealing are mounted, respectively.

  The opening / closing mechanism 320 is a cap-type rotation operation unit having a U-shaped cross section. In the opening / closing mechanism 320, a spiral groove 320G is provided on at least a part of the inner peripheral surface 320B to be fitted with the groove 310G provided on the outer peripheral surface 310A of the nozzle body 310. The opening / closing mechanism 320 can be rotated by the groove 310G provided on the outer peripheral surface 310A of the nozzle body 310 and the groove 320GG provided on the inner peripheral surface 320B of the opening / closing mechanism 320.

  When the opening / closing mechanism 320 is rotated clockwise as viewed from above, the opening / closing mechanism 320 is rotated by the groove 310G of the nozzle body 310 and the groove 320GG of the opening / closing mechanism 320 so that the nozzle body 310 is covered with the ground. 320 abuts on the O-ring 315 of the nozzle body 310, and self-defense spraying stops.

  The opening / closing mechanism 320 has a passage 322 for spraying a fluid on the head 321. The passage 322 has a plurality of fluid inlets 322A and one fluid outlet 322B. More specifically, the passages 322 are formed radially from one outlet 322B to a plurality of inlets 322A. For this reason, the fluids flowing in from the plurality of inlets 322A collide with each other at the outlets 322B, and the fluid is diffused and sprayed. The outer peripheral surface 320A of the opening / closing mechanism 320 is knurled to prevent slipping.

  FIG. 5 is a front view showing an example in which a nozzle sprayer plug 400 is attached to the rotating frame 200 of the firefighting self-defense spray joint 1 according to the embodiment of the present invention. In the above description, the nozzle sprayer 300 is connected in communication with the rotary frame 200. However, the nozzle sprayer plug 400 is connected to the guide path 220 of the rotary frame 200 in place of the nozzle sprayer 300 as shown in FIG. May be.

  Instead of the opening / closing mechanism 320, the nozzle sprayer plug 400 is covered with a mekura lid 420 that is not formed with a passage for spraying fluid. For this reason, it can replace with the nozzle sprayer 300 and can suppress the self-defense spray of an unnecessary direction by mounting | wearing with the nozzle sprayer plug 400. FIG.

  As described above, the firefighting self-defense spray joint 1 according to the present embodiment includes the joint main line 100 having the fluid main flow passage 110 therein and the branch passage 120 in the radial direction, and the periphery of the joint pipe 100. A rotating frame 200 that is covered with an intermediate storage portion 210 and that has a guide path 220 that extends from the intermediate storage portion 210 to the outer periphery of the annular body. A nozzle sprayer 300 with an opening / closing mechanism 320 that is a part of the outer peripheral surface 200A of the rotary frame 200, is connected to the guide path 220, and can spray nozzles radially outward. And the self-defense spray can be performed to the outside of the flow passage diameter intersecting with the main flow direction by guiding the flow fluid from the branch passage 120 from the intermediate reservoir 210 to the guide passage 220 and spraying from the nozzle sprayer 300. .

  That is, according to the above configuration, since the rotary frame 200 having the nozzle sprayer 300 that sprays fluid radially outward is mounted so as to be freely rotatable in the circumferential direction, only the rotational phase of the rotary frame 200 is changed. Therefore, it is possible to easily perform the switching operation of the self-defense spray direction such as the face direction spray and the foot direction spray. Further, since the nozzle sprayer 300 with the opening / closing mechanism 320 protrudes in the circumferential direction of the outer peripheral surface 200A of the rotary frame 200, the self-defense spray can be easily turned on / off.

  In addition, a plurality of nozzle sprayers 300 of the firefighting self-defense spray joint 1 according to the present embodiment are provided at different phase positions of the rotary frame 200, and any two of the plurality of nozzle sprayers 300 are arranged to be grounded. obtain.

  According to said structure, the fire-fighting nozzle 2 can be mounted in the ground etc. in the stable state. For this reason, even if the fire-fighting nozzle 2 is placed on the ground or the like in a discharged state, the fire-fighting nozzle 2 is not exposed and can be safely placed on the ground or the like.

  In addition, the nozzle sprayer 300 of the firefighting self-defense spray joint 1 according to the present embodiment is attached to a substantially columnar nozzle body 310 capable of ejecting a fluid from the tip, and to the peripheral portion of the nozzle body 310 so as to be rotatable coaxially. And an opening / closing mechanism 320 including a rotating operation unit.

  According to said structure, the on-off operation of self-defense spray can be easily performed by opening and closing the opening-and-closing mechanism 320 which consists of a rotation operation part.

  Furthermore, when the nozzle sprayer plug 400 is mounted instead of the nozzle sprayer 300, self-defense spraying in unnecessary directions can be suppressed.

  Moreover, the joint set which comprises the spray joint 1 for fire-fighting self-defense which concerns on this Embodiment is the joint frame 100, the rotary frame 200 which is covered by the joint pipe 100, and has several radial connection holes, The nozzle sprayer 300 is detachably attached to any one of the connection holes of the rotary frame 200 and the nozzle sprayer plug 400 is detachably attached to the rotary frame 200.

  According to said structure, switching operation of the self-defense spray direction can be performed easily. In addition, by attaching the nozzle sprayer plug 400 to the connection hole, self-defense spray in an unnecessary direction can be suppressed.

<Other embodiments>
The present invention has been described above based on the embodiment. The embodiment is an exemplification, and various modifications, increases / decreases, and combinations may be added to the above-described embodiments without departing from the gist of the present invention.

  In the embodiment, as shown in FIG. 2, the example in which the two nozzle sprayers 300 are provided in the rotating frame 200 at a phase position different by about 45 degrees has been described. Thereby, since the two nozzle sprayers 300 are grounded, the fire-fighting nozzle 2 can be placed on the ground or the like in a stable state.

  However, the number of nozzle sprayers 300 provided is not limited to two, and the phase position is not limited to 45 degrees. For example, as shown in FIG. 6A, the three nozzle sprayers 300 may be provided at phase positions different from each other by about 45 degrees and about 180 degrees, respectively. Further, as shown in FIG. 6B, the two nozzle sprayers 300 may be provided at a phase position that is different by about 180 degrees. Further, as shown in FIG. 6C, the three nozzle sprayers 300 may be provided at different phase positions of about 120 degrees and 240 degrees. Further, as shown in FIG. 6 (d), the three nozzle sprayers 300 may be provided at about 90 degrees and about 270 different phase positions.

  As shown in FIG. 6, by providing a plurality of nozzle sprayers 300 at different phase positions, self-defense spray can be performed at once in a plurality of directions such as face direction spray and foot direction spray. Further, the fire-fighting nozzle 2 can be placed or installed on the ground or the like in a stable and independent state.

In addition, as shown in FIG.
Each nozzle sprayer 300 may be provided at a different phase position via a straight connector 51 that communicates the flow path straightly or a vent connector 52 that communicates the flow path in a direction inclined in a predetermined inclination direction. . In FIG. 7, a bend connector 52 having a flow path inclined in a 45-degree tilt direction is provided at the tip of the upper guide path 220, and the flow is provided at the tip of the lower guide path 220, which is diagonally cross-sectional view. A straight connector 52 that extends the path straight is provided, and the nozzle sprayer 300 is provided at a symmetrical position in the cross-sectional radial direction by connecting the nozzle body 310 to the tip of each connector 51, 52. Thus, self-defense spraying in a predetermined direction can be performed by exchanging the connection tools 51 and 52. Further, the bend connector 52 may be one that maintains a constant inclination direction, or one that can change the inclination direction by adjustment.

DESCRIPTION OF SYMBOLS 1 Fire-fighting self-defense spray joint 2 Fire-fighting nozzle 100 Joint pipe line 110 Main flow path 120 Branching path 100A Outer peripheral surface 200 Rotating frame 210 Intermediate storage part 220 Guide path 230 O-ring 200B Inner peripheral surface 200G Groove 300 Nozzle sprayer 310 Nozzle body 311 Passage 312 Head 313, 314 Groove 315, 316 O-ring 310A Outer peripheral surface 310G Groove 320 Opening / closing mechanism 321 Head 322 Passage 322A Inlet 322B Outlet 320A Outer peripheral surface 320B Inner peripheral surface 320G Groove 400 Nozzle sprayer plug 420 Mekra lid

Claims (4)

A joint pipe having a main flow passage for the fluid and having a branch passage in the radial direction, and an intermediate storage portion around the joint pipe are provided so as to be freely rotatable in the circumferential direction. A rotary frame made of a ring and having a guide path extending from the intermediate storage portion to the outer periphery of the ring body, and a part of the outer peripheral surface of the rotary frame that is connected to the guide path and is radially outwardly connected to the nozzle A nozzle sprayer with an opening and closing mechanism capable of spraying,
A spray joint for firefighting self-defense, in which the fluid flowing from the branch passage is guided from the intermediate reservoir to the guide passage and sprayed from the nozzle sprayer to perform self-defense spraying outward of the flow passage diameter intersecting the main flow direction. . The nozzle sprayer
2. The fire joint self-defense spray joint according to claim 1, wherein a plurality of nozzle sprayers are provided at different phase positions of the rotating frame, and any two of the plurality of nozzle sprayers can be arranged to be grounded and self-supporting. The nozzle sprayer
3. A substantially columnar nozzle body capable of ejecting the fluid from a tip thereof, and an opening / closing mechanism comprising a rotation operation unit coaxially and rotatably attached to a peripheral part of the nozzle body. The spray joint for fire fighting self-defense as described. A joint pipe, a rotary frame that covers the joint pipe and has a plurality of radial connection holes, a nozzle sprayer that is removably attached to any one of the connection holes of the rotary frame, and the rotary frame A joint set consisting of a nozzle sprayer plug that is removably attached to

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