JP3101263U

JP3101263U - Fire protection tank lid

Info

Publication number: JP3101263U
Application number: JP2003272074U
Authority: JP
Inventors: 武彦松波
Original assignee: 成輝工業株式会社
Priority date: 2003-10-28
Filing date: 2003-10-28
Publication date: 2004-06-10
Anticipated expiration: 2009-10-28

Abstract

【課題】上方が開放された蓋のない防火水槽に対して、防火水槽の上方からの作業だけで蓋を着脱可能に設置することが可能な防火水槽蓋を提供する。
【解決手段】周壁３によって囲まれる上面開口部を有する防火水槽２に対し、両端が防火水槽２の上面開口部の上方に架け渡される横架部材１０と、上面開口部を覆う部材である複数の板材１１を有し、複数の板材１１を横架部材１０の長手方向に沿って並設してなる覆い部４０と、並設された複数の板材１１同士の接合部分に対して設けられ、覆い部４０上方からの作業により複数の板材１１同士を連結させることが可能な第一連結部材と、複数の板材１１に含まれる少なくとも一枚の部材である孔付板材１２と、孔付板材１２に装着される蓋体１５とを具備する。
【選択図】図１ PROBLEM TO BE SOLVED: To provide a fire protection water tank lid that can be detachably installed in a fire protection water tank having an open top without a lid only by working from above the fire protection water tank.
SOLUTION: A horizontal member 10 whose both ends are bridged over an upper surface opening of the fire protection water tank 2 with respect to a fire protection water tank 2 having an upper surface opening surrounded by a peripheral wall 3, and a plurality of members which cover the upper surface opening. And a covering portion 40 in which the plurality of plate members 11 are juxtaposed along the longitudinal direction of the horizontal member 10 and a joint portion between the plurality of juxtaposed plate members 11, A first connecting member capable of connecting the plurality of plate members 11 by an operation from above the cover portion 40, a perforated plate member 12, which is at least one member included in the plurality of plate members 11, and a perforated plate member 12; And a lid 15 attached to the device.
[Selection diagram] Fig. 1

Description

本考案は、防火水槽蓋に関するものであり、特に、上方が開放された防火水槽に対して、上方からの作業によって着脱可能に取付けることができ、施工または改修の際にかかる手間を軽減することが可能な防火水槽蓋に関するものである。 The present invention relates to a fire prevention water tank lid, and in particular, can be detachably attached to a fire prevention water tank having an open upper side by work from above, thereby reducing the time required for construction or repair. The present invention relates to a fire prevention water tank lid that can be used.

防火水槽には、上方が開放された形状のものがある。このように上方が開放されていることで、例えば、火事等の緊急事態が起きた場合には、この開放された部分から水を吸引することにより、消火活動を行なうことができるものである。また、危険防止のために周囲を網状のフェンス等を用いて囲い、防火水槽へ近づけないようにしたものがある。けれども、防火水槽の上方は依然開放されたままである。 Some fire prevention water tanks are open at the top. By opening the upper part in this way, for example, when an emergency such as a fire occurs, the fire extinguishing activity can be performed by sucking water from the opened part. In some cases, the surrounding area is surrounded by a net-like fence or the like to prevent danger, so that the fireproof water tank is not approached. However, the upper part of the fire tank is still open.

また、防火水槽の上方が開放されているため、この部分から日光が進入することによって、水中に藻を発生させてしまうことがある。水中内に藻が繁殖してしまうと、例えば、火事が発生した場合に、消防車がホースを使って消火活動をするために、防火水槽内の水を吸引しようとしても、藻がホースへの吸引動作の邪魔をして消火活動に影響を及ぼしてしまうことがある。 In addition, since the upper part of the fire prevention water tank is open, algae may be generated in the water when sunlight enters from this part. If algae proliferate in the water, for example, in the event of a fire, even if a fire engine tries to use the hose to extinguish the fire, even if the algae tries to suck water in the fire protection tank, It may interfere with the suction operation and affect fire fighting activities.

また、消防車等による消火活動を円滑に行うために、防火水槽の多くは道路脇に設置されている。しかし、道路から近いことで、例えば、人によって道路脇に捨てられたごみ等が防火水槽内に入り込む場合がある。これにより、さらに防火水槽内の水質状態を悪化させている。 In addition, many fire prevention tanks are installed on the side of the road to facilitate fire fighting by fire engines. However, because of being close to the road, for example, garbage or the like discarded by a person on the side of the road may enter the fire prevention water tank. Thereby, the water quality in the fire prevention water tank is further deteriorated.

そこで、上方が開放されている防火水槽に対して、蓋を設置することが行なわれている。図５（ａ）は、防火水槽１０２の上端に取付けられた防火水槽蓋１０１の平面図であり、図５（ｂ）は、防火水槽１０２のＸ−Ｘ断面図である。詳しくは、防火水槽１０２の底部１０３に下端を当接するようにして鉛直支柱１１０が列設されており、この鉛直支柱１１０の上端は梁１１２を支持している。また、鉛直支柱１１０と直交し、防火水槽１０２の内壁１０４の、対向する夫々の辺にわたって水平支柱１１１が設けられている。この水平支柱１１１は、支柱クランプ１１３によって鉛直支柱１１０と連結されている。防火水槽１０２の周壁１０５の上面１０６には縁枠１２０が設けられており、この縁枠１２０に対して、梁１１２と直交する方向に蓋板１２１が並設されている。この蓋板１２１が複数並設されることで蓋体１２２となる。この複数並設されている蓋板１２１は、ボルト及びナットからなる締結具１１４によって蓋板１２１同士が固定されており、さらに、蓋板クランプ１１５によって、蓋板１２１の長手方向の両端部は縁枠１２０に連結されている。また、マンホール１３０にはマンホール蓋１３２が設けられており、マンホール１３０を支持するためのマンホール梁１３１がマンホール１３０を囲むように矩形状に設けられている。 Therefore, a lid is installed on a fire prevention water tank whose upper part is open. FIG. 5A is a plan view of the fire protection water tank lid 101 attached to the upper end of the fire protection water tank 102, and FIG. 5B is a cross-sectional view of the fire protection water tank 102 taken along line XX. More specifically, vertical columns 110 are arranged in a row so that the lower ends thereof abut on the bottom 103 of the fire prevention water tank 102, and the upper ends of the vertical columns 110 support the beams 112. In addition, a horizontal support 111 is provided orthogonally to the vertical support 110 and on each of opposing sides of the inner wall 104 of the fire prevention water tank 102. The horizontal column 111 is connected to the vertical column 110 by a column clamp 113. An edge frame 120 is provided on the upper surface 106 of the peripheral wall 105 of the fire protection water tank 102, and a lid plate 121 is arranged on the edge frame 120 in a direction orthogonal to the beam 112. A lid 122 is formed by arranging a plurality of the lid plates 121 in parallel. The plurality of lid plates 121 arranged side by side are fixed to each other by fasteners 114 composed of bolts and nuts, and further, both ends in the longitudinal direction of the lid plate 121 are edged by lid plate clamps 115. It is connected to the frame 120. The manhole 130 is provided with a manhole cover 132, and a manhole beam 131 for supporting the manhole 130 is provided in a rectangular shape so as to surround the manhole 130.

出願人は、本願出願時において以上の従来技術が記載されている文献として以下のものを知見している。
特開２００２−４３５１号公報 At the time of filing the present application, the applicant has found the following documents describing the above-mentioned prior art.
JP-A-2002-4351

しかし、上記の特許文献１の場合、防火水槽１０２の周壁１０５の上面１０６に蓋体１２２を設けるには、まず、防火水槽１０２の内側に作業者が入って防火水槽１０２の底部１０３に鉛直支柱１１０を設置しなければならない。このため、防火水槽１０２の内部から水を排出して空の状態にしなければ鉛直支柱１１０を設置することはできなかった。さらに、蓋体１２２は複数の蓋板１２１を並設して構成されるものであり、この蓋板１２１は下側に屈曲した部分をボルト及びナットからなる締結具１１４によって連結する構造になっている。このため、防火水槽１０２の周壁１０５の上面１０６に蓋体１２２を設置するためには、複数の蓋板１２１を防火水槽１０２の周壁１０５の上面１０６に並設した後で、防火水槽１０２の内側から、夫々の蓋板１２１を固定するためのボルト及びナットからなる締結具１１４と、夫々の蓋板１２１を縁枠１２０に固定するための蓋板クランプ１１５とを用いて作業者が連結しなければならなかった。このように、防火水槽１０２に蓋体１２２を設置するためには大変な手間と労力を要するものであった。 However, in the case of Patent Document 1 described above, in order to provide the lid 122 on the upper surface 106 of the peripheral wall 105 of the fire protection water tank 102, first, an operator enters the inside of the fire protection water tank 102, and a vertical support is provided on the bottom 103 of the fire protection water tank 102. 110 must be installed. For this reason, the vertical strut 110 could not be installed unless water was discharged from the inside of the fire prevention water tank 102 to make it empty. Further, the lid 122 is configured by arranging a plurality of lid plates 121 side by side, and the lid plate 121 has a structure in which parts bent downward are connected by fasteners 114 composed of bolts and nuts. I have. Therefore, in order to install the lid 122 on the upper surface 106 of the peripheral wall 105 of the fire protection water tank 102, the plurality of cover plates 121 are arranged side by side on the upper surface 106 of the peripheral wall 105 of the fire protection water tank 102, Therefore, the worker must connect using fasteners 114 composed of bolts and nuts for fixing the respective lid plates 121 and lid plate clamps 115 for fixing the respective lid plates 121 to the frame 120. I had to. As described above, installing the lid 122 in the fire prevention water tank 102 requires a great deal of labor and labor.

そこで本考案は、上方が開放された蓋のない防火水槽に対して、上方からの作業だけで蓋を着脱可能に取付けることが可能な防火水槽蓋を提供するものである。 In view of the above, the present invention provides a fire prevention water tank lid in which a lid can be detachably attached to a fire water tank having an open top without a lid only by working from above.

本考案にかかる防火水槽蓋は、周壁によって囲まれる上面開口部を有する防火水槽に対し、両端が前記周壁の上面に載置され、前記上面開口部の上方に架け渡される横架部材と、前記上面開口部を覆う部材であって、前記横架部材の長手方向に対して略垂直に配設され、一端側が前記横架部材に支持されるとともに他端側が前記周壁の上面に支持される複数の板材を有し、前記複数の板材を前記横架部材の長手方向に沿って並設してなる覆い部と、並設された前記複数の板材同士の接合部分に対して設けられ、前記覆い部上方からの作業により前記複数の板材同士を連結させることが可能な第一連結部材と、前記複数の板材に含まれる少なくとも一枚の部材であって、消火用ホースを前記防火水槽内に挿入可能な大きさの貫通孔が穿設された孔付板材と、前記貫通孔を塞ぐ蓋体とを具備するものである。 The fire prevention water tank lid according to the present invention, for a fire prevention water tank having an upper surface opening surrounded by a peripheral wall, both ends are placed on the upper surface of the peripheral wall, and a transverse member that is bridged over the upper surface opening, A member that covers an upper surface opening, and is disposed substantially perpendicularly to the longitudinal direction of the horizontal member, one end of which is supported by the horizontal member and the other end of which is supported by the upper surface of the peripheral wall. And a cover portion in which the plurality of plate members are juxtaposed along a longitudinal direction of the horizontal member, and a cover portion provided for a joint portion between the plurality of juxtaposed plate members. A first connecting member capable of connecting the plurality of plate members to each other by an operation from above, and at least one member included in the plurality of plate members, wherein a fire extinguishing hose is inserted into the fire prevention water tank. A through hole of the largest possible size was drilled And biasing the plate member is for and a lid for closing said through-hole.

ここで、「貫通孔」としては、少なくとも消火用ホースが挿入可能な大きさであればよく、貫通孔の大きさは特に限定されるものではない。例えば、消火用ホースの直径と略同じ大きさの採水口程度の大きさとしてもよい。この場合には、人が防火水槽に転落しなくなる。また、防火水槽の内部に人が入れる程度の大きさのマンホールであってもよい。この場合には、防火水槽蓋を取付けたまま防火水槽の内側に作業者が入れることから、防火水槽の内側の掃除、または点検が容易になる。 Here, the “through hole” is not particularly limited as long as it is at least a size into which a fire extinguishing hose can be inserted. For example, the size may be about the same as the water intake that is approximately the same as the diameter of the fire hose. In this case, the person does not fall into the fire prevention water tank. Further, a manhole having a size enough for a person to enter the inside of the fire prevention water tank may be used. In this case, since the worker puts the inside of the fire prevention water tank with the fire prevention water tank lid attached, cleaning or inspection of the inside of the fire prevention water tank becomes easy.

また、「横架部材」としては、複数の板材を支持し、さらに、防火水槽蓋の上に少なくとも一人の作業者が乗った場合でも耐えることができる程度のものであればよい。具体的には、アルミニウム、鉄、合金等の金属の鋼材から構成される横架部材が例示される。 Further, the “horizontal member” may be any material that supports a plurality of plate members and can withstand even when at least one worker rides on the fire prevention water tank lid. Specifically, a horizontal member composed of a steel material of a metal such as aluminum, iron, and an alloy is exemplified.

この防火水槽蓋によれば、横架部材は防火水槽の上面開口部に対して掛け渡され、さらに、横架部材に複数の板材の一端が支持されて、複数の板材の他端側が周壁の上面に支持される格好で配設されている。つまり、複数の板材よって防火水槽の上面開口部が覆われることになる。また、並設された複数の板材の接合部分には第一連結部材が備えられている。これによれば、接合する板材同士が第一連結部材によって連結されることで、上方からの作業によって取付けることができる。また、複数の板材のうち、少なくとも一枚は、消火用ホースを防火水槽内に挿入可能な大きさの貫通孔が穿設されている。これによれば、連結された複数の板材を分解することなく、防火水槽の内側へ消火用ホースを挿入することができる。また、貫通孔を塞ぐための蓋体が備えられている。これによれば、消火用ホースを防火水槽の内側に挿入しないときには、貫通孔を塞ぐことにより、例えば、防火水槽内にごみが入り込まなくなる。 According to this fire prevention water tank lid, the horizontal member is hung over the upper surface opening of the fire prevention water tank, and one end of a plurality of plate members is supported by the horizontal member, and the other end side of the plurality of plate members is a peripheral wall. It is arranged in the style supported on the upper surface. That is, the upper surface opening of the fire prevention water tank is covered with the plurality of plate members. Further, a first connecting member is provided at a joining portion of the plurality of plate materials arranged in parallel. According to this, since the plate materials to be joined are connected by the first connecting member, they can be attached by work from above. In addition, at least one of the plurality of plate members has a through-hole large enough to allow a fire-extinguishing hose to be inserted into the fire-resistant water tank. According to this, the fire extinguishing hose can be inserted inside the fire prevention water tank without disassembling the plurality of connected plate members. Further, a lid for closing the through hole is provided. According to this, when the fire extinguishing hose is not inserted inside the fire prevention water tank, the through hole is closed, so that, for example, dust does not enter the fire prevention water tank.

さらに、本考案にかかる防火水槽蓋において、「前記第一連結部材は、前記複数の板材同士の接合部分に沿って配設される長尺形状の部材であり、前記第一連結部材の上面に、一方の板材の底面が溶着された溶着領域と、他方の板材の底面に当接し前記複数の板材の上方から螺着されるボルトによって締結される締結領域とが設けられている」構成とすることができる。 Further, in the fire prevention water tank lid according to the present invention, "the first connecting member is a long member arranged along a joining portion of the plurality of plate members, and the upper surface of the first connecting member And a fastening region where the bottom surface of one plate material is welded and a fastening region which abuts against the bottom surface of the other plate material and is fastened by bolts screwed from above the plurality of plate materials. " be able to.

この防火水槽蓋によれば、第一連結部材の上面は機能的に区分けされており、その一方には溶着領域が設けられ、この部分が板材の一辺側に溶着されている。これによれば、板材の一方側に第一連結部材が溶着されることによって、その板材に対して一体的に構成されることから、組付ける際に防火水槽の中に第一連結部材が落下することはなく、また、組付け作業が簡略される。さらに、第一連結部材の他方には締結領域が設けられている。これによれば、板材に対して一体的に溶着された第一連結部材は、複数の板材が防火水槽の上面開口部に対して並設されることで、接合する板材の底面と当接することから、上方からのボルトによる締結作業だけで夫々の板材を連結することができる。また、第一連結部材が複数の板材の下面に設けられることで、板材の上面には突出しないことから作業者が躓くことがない。 According to this fire prevention water tank lid, the upper surface of the first connecting member is functionally divided, and a welding region is provided on one of the upper surfaces, and this portion is welded to one side of the plate material. According to this, since the first connecting member is welded to one side of the plate, the first connecting member is integrally formed with the plate, so that the first connecting member falls into the fire prevention water tank at the time of assembly. And the assembling work is simplified. Further, a fastening area is provided on the other of the first connecting members. According to this, the first connecting member integrally welded to the plate material is in contact with the bottom surface of the plate material to be joined by the plurality of plate materials being arranged in parallel with the upper surface opening of the fire prevention water tank. Therefore, the respective plate members can be connected only by the fastening operation using bolts from above. Further, since the first connecting member is provided on the lower surface of the plurality of plate members, the first connecting member does not protrude from the upper surface of the plate members, so that the operator does not trip.

さらに、本考案にかかる防火水槽蓋において、「前記覆い部は、少なくとも一辺端部が下方に屈曲し、さらに内側方向に略直角に屈曲して前記周壁の上面に対して当接されている当接部と、他辺端部付近から垂下され、前記周壁の上面よりも下方に延出されている延出部とを有する」構成とすることができる。 Further, in the fire prevention water tank lid according to the present invention, it is preferable that at least one side edge of the covering portion bends downward, and further bends at a substantially right angle inward to contact the upper surface of the peripheral wall. A contact portion and an extending portion that is suspended from the vicinity of the other side end and extends below the upper surface of the peripheral wall ”.

この防火水槽蓋によれば、覆い部には、周壁の上面よりも下方に延出されている延出部が設けられている。これによれば、例えば、外側方から防火水槽蓋に対して衝撃が加わった場合でも、延出部が周壁と当接することによって水平方向の移動を抑制することができる。また、覆い部の少なくとも一辺端部には当接部が備えられている。これによれば、現場で適宜、防火水槽蓋の形状を合わせることができる。つまり、加工精度が低くても、容易に設置することができるので、加工にかかるコストを削減することができる。 According to this fire prevention water tank lid, the cover portion is provided with an extension portion extending below the upper surface of the peripheral wall. According to this, for example, even when an impact is applied to the fire prevention water tank lid from the outside, the horizontal movement can be suppressed by the extension part coming into contact with the peripheral wall. Further, a contact portion is provided on at least one side end of the cover portion. According to this, the shape of the fire prevention water tank lid can be appropriately adjusted on site. In other words, even if the processing accuracy is low, it can be easily installed, so that the cost for processing can be reduced.

さらに、本考案にかかる防火水槽蓋において、「前記延出部に対して、側方から取付け可能な部材であって、互いに接合する板材同士を連結させる第二連結部材を備える」構成とすることができる。 Furthermore, in the fire prevention water tank lid according to the present invention, it is configured to “provide a member that can be attached to the extension portion from the side and that includes a second connection member that connects the plate members to be joined to each other”. Can be.

この防火水槽蓋によれば、並設され、接合する板材の延出部に対して側方から第二連結部材が連結されている。これによれば、並設され、互いに接合する板材同士が強固に連結されるので、複数の板材の、横架部材の長手方向への移動防止が確実になる。また、複数の板材が並設された後から容易に連結することができる。また、防火水槽から複数の板材を取外す場合であっても、簡単に取外すことができる。 According to this fire prevention water tank lid, the second connecting member is connected from the side to the extension of the plate material to be joined and joined. According to this, the plate members that are arranged and joined to each other are firmly connected to each other, so that the plurality of plate members can be reliably prevented from moving in the longitudinal direction of the transverse member. Further, the connection can be easily performed after the plurality of plate members are arranged in parallel. Further, even when a plurality of plate members are removed from the fire prevention water tank, they can be easily removed.

さらに、本考案にかかる防火水槽蓋において、「前記覆い部の表面には、全体にわたって形成された複数の突起を有し、前記突起によって靴底及び前記覆い部の摩擦係数を増加させる滑り止め防止手段が設けられている」構成とすることができる。 Further, in the fire prevention water tank lid according to the present invention, "the surface of the covering portion has a plurality of projections formed throughout, and the projections increase the coefficient of friction of the shoe sole and the covering portion. Means is provided ".

ここで、「靴底」とは、覆い部の上に乗る人の靴底であり、火事などの消火活動をする人や、防火水槽蓋を設置する人、防火水槽の保守及び点検をする人の靴底が例示される。 Here, the "sole" is the sole of the person who rides on the cover, who extinguishes fires, installs a fire tank cover, and maintains and checks the fire tank. Is illustrated.

この防火水槽蓋によれば、覆い部の表面に突起を設けることで、突起部分と靴底との間の摩擦力が大きくなるので、覆い部の上に乗る人が滑るのを防止することができる。 According to this fire prevention water tank lid, by providing the projection on the surface of the cover, the frictional force between the protrusion and the sole increases, so that a person riding on the cover can be prevented from slipping. it can.

さらに、本考案にかかる防火水槽蓋において、「前記覆い部は、前記横架部材を中心として線対称に形成され、前記横架部材側に向かって高くなる山形形状を呈する」構成とすることができる。 Further, in the fire prevention water tank lid according to the present invention, it may be configured such that "the covering portion is formed symmetrically with respect to the horizontal member and exhibits a chevron shape which becomes higher toward the horizontal member side". it can.

この防火水槽蓋によれば、覆い部が横架部材を中心に山形形状を呈している。つまり、横架部材の上面側を頂辺として下り傾斜して設けられている。これによれば、例えば、雨が降った場合、下り傾斜している覆い部表面に従って、雨が速やかに流れ出されることにより、覆い部表面に水が溜まらないので覆い部表面が錆びなくなる。また、覆い部表面に水が溜まらないことから、苔が発生しないので、覆い部表面の摩擦係数の減少を抑制することができる。 According to this fire prevention water tank lid, the covering portion has a mountain shape centering on the horizontal member. That is, it is provided to be inclined downward with the upper surface side of the horizontal member being the top side. According to this, for example, when it rains, the rain quickly flows out according to the surface of the covering portion which is inclined downward, so that water does not accumulate on the surface of the covering portion, so that the surface of the covering portion does not rust. Further, since water does not accumulate on the surface of the covering portion, no moss is generated, so that a decrease in the coefficient of friction of the surface of the covering portion can be suppressed.

本考案によれば、上方が開放されている防火水槽に対して、上方からの作業によって防火水槽蓋を着脱可能に取付けることができるので、面倒な防火水槽内の水抜き作業や、防火水槽の内側からの取付け作業をしなくても、防火水槽に蓋を取付けることができる。従って、設置・施工にかかる手間と労力が抑制される。 According to the present invention, since the fire protection water tank lid can be detachably attached to the fire protection water tank whose upper part is open by the work from above, it is troublesome to drain the water in the fire protection water tank and to install the fire protection water tank. The lid can be attached to the fire prevention water tank without the need for installation work from the inside. Therefore, the labor and labor required for installation and construction are reduced.

以下、本考案の実施形態である防火水槽蓋１について、図１乃至図４に基づき説明する。図１は、防火水槽蓋１の全体構成を示す斜視図であり、図２は防火水槽蓋１の一部を分解した状態を示す分解斜視図であり、図３は防火水槽蓋１の構成を示す平面図であり、図４は防火水槽蓋１のＡ−Ａ断面図である。 Hereinafter, a fire prevention water tank lid 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view showing the entire configuration of the fire prevention water tank cover 1, FIG. 2 is an exploded perspective view showing a state where a part of the fire prevention water tank cover 1 is disassembled, and FIG. FIG. 4 is a sectional view taken along the line AA of the fire prevention water tank lid 1.

本考案の防火水槽蓋１は、主に、Ｈ鋼から構成された横架部材１０と、複数の板材１１と、複数の板材１１を連結する、角パイプから構成された第一連結部材１４とを備えている。 The fire prevention water tank lid 1 of the present invention mainly includes a horizontal member 10 made of H steel, a plurality of plate members 11, and a first connecting member 14 formed of a square pipe connecting the plurality of plate members 11. It has.

横架部材１０は、図１乃至図４に示すように、長尺形状を呈しており、防火水槽２の周壁３の上面４に両端部を当接して略中央に架け渡されている。また、図２に示すように、横架部材１０の下面には、防火水槽２の内壁（図示しない）と当接する係止具４１が設けられている。この係止具４１は、横架部材１０が防火水槽２内へ落下しないように取付けられている。 As shown in FIGS. 1 to 4, the horizontal member 10 has an elongated shape, and is bridged substantially at the center with both ends in contact with the upper surface 4 of the peripheral wall 3 of the fire prevention water tank 2. In addition, as shown in FIG. 2, a locking tool 41 that is in contact with an inner wall (not shown) of the fire protection water tank 2 is provided on a lower surface of the horizontal member 10. The locking member 41 is attached so that the horizontal member 10 does not fall into the fire protection water tank 2.

複数の板材１１は、図１乃至図４に示すように、板状の鋼板によって形成されており、表面には縞模様の突起２５が設けられている。この突起２５が本考案の滑り止め防止手段に相当する。尚、図１乃至図３に示す突起２５は、複数の板材１１の表面全体に形成されているが、図面では便宜上一部のみ形成したものを示している。複数の板材１１は、横架部材１０の長手方向に対して略垂直に配設されており、一端側を横架部材１０の上面において固定され、他端側を防火水槽２の周壁３の上面４において支持されている。詳しくは、横架部材１０に固定される複数の板材１１の一端側にはボルト１６を通すための貫通孔５０が開けてあり、また、横架部材１０の上面にはボルト１６を螺着するための螺着孔５１が設けられている。この複数の板材１１を防火水槽２の上面開口部５に並設することで覆い部４０が形成されている。また、複数の板材１１には、後述する、第一連結部材１４を連結するための貫通孔５３が設けられている。横架部材１０の両端部に配置されている板材１１には、板材側部１８が取付けられており、この板材側部１８の下面端部は内側に屈曲している。また、図示しないが、複数の板材１１の裏面側には、長手方向の略中央付近に補強材が設けられている。また、防火水槽２の上面開口部５に対して並設されている複数の板材１１は、横架部材１０と当接する一端側部分が、防火水槽２の周壁３の上面４と当接する他端側部分よりも上方に位置している。換言すると、複数の板材１１は、横架部材１０と当接する一端側部分を頂辺２６として防火水槽２の周壁３の上面４に向かって下り傾斜している。例えば、図４に示すように、上下方向に対して高低差hがあり、複数の板材１１は横架部材１０に向かって高くなる山形形状を呈している。この高低差ｈは約１度の勾配になっている。 As shown in FIGS. 1 to 4, the plurality of plate members 11 are formed of a plate-like steel plate, and are provided with striped protrusions 25 on the surface. The projection 25 corresponds to the anti-slip means of the present invention. Although the projections 25 shown in FIGS. 1 to 3 are formed on the entire surface of the plurality of plate members 11, only a part thereof is shown in the drawings for convenience. The plurality of plate members 11 are disposed substantially perpendicular to the longitudinal direction of the horizontal member 10, one end is fixed on the upper surface of the horizontal member 10, and the other end is the upper surface of the peripheral wall 3 of the fire prevention water tank 2. 4 supported. More specifically, a through hole 50 for passing a bolt 16 is formed at one end of the plurality of plate members 11 fixed to the horizontal member 10, and the bolt 16 is screwed to the upper surface of the horizontal member 10. Screw hole 51 is provided. The cover part 40 is formed by arranging the plurality of plate members 11 in parallel with the upper surface opening 5 of the fire prevention water tank 2. Further, the plurality of plate members 11 are provided with through holes 53 for connecting the first connecting members 14 described later. A plate material side portion 18 is attached to the plate material 11 disposed at both ends of the horizontal member 10, and a lower surface end of the plate material side portion 18 is bent inward. Although not shown, a reinforcing material is provided on the back surface side of the plurality of plate members 11 near the center in the longitudinal direction. The plurality of plate members 11 arranged side by side with respect to the upper surface opening 5 of the fire protection water tub 2 have one end portion in contact with the horizontal member 10 and the other end in contact with the upper surface 4 of the peripheral wall 3 of the fire protection water tub 2. It is located above the side part. In other words, the plurality of plate members 11 are inclined downward toward the upper surface 4 of the peripheral wall 3 of the fire prevention water tank 2 with the one end portion in contact with the horizontal member 10 as the top side 26. For example, as shown in FIG. 4, there is a height difference h in the vertical direction, and the plurality of plate members 11 have a chevron shape that becomes higher toward the horizontal member 10. The height difference h has a gradient of about 1 degree.

孔付板材１２は、複数の板材１１に含まれる一枚であり、上下方向に貫通したマンホール１３が設けられている。ここで、マンホール１３が本考案の貫通孔に相当する。このマンホール１３は、作業者が防火水槽２の内側に入って作業するために使用したり、火事等の消火活動を行う場合に、水を吸引するためのホース挿入口として使用する。また、通常、マンホール１３を塞いでおくためにマンホール１３と略同程度の大きさの蓋体１５が設けられている。蓋体１５の表面には、中心部分が円形で、中心部分から細長く伸びた縦長形状の持上げ孔３０が二箇所設けられている。この持上げ孔３０は、蓋体１５を持上げるためのものであり、別途用いられる棒（図示しない）が挿入される部分である。詳しく説明すると、棒の先端部分には、持上げ孔３０の縦長形状部分よりも僅かに小さい突起が形成されており、この棒の先端部分を持上げ孔３０に挿入し、棒を周方向に約９０度回転させることで突起が蓋体３０の裏面と当接する状態になる。この当接した状態から棒を引き上げると、蓋体３０の裏面に当接していた棒が蓋体３０の裏面を係止するので、蓋体３0が持上げられ、マンホール１３が開放される。 The perforated plate 12 is a single plate included in the plurality of plates 11, and is provided with a manhole 13 penetrating vertically. Here, the manhole 13 corresponds to the through hole of the present invention. The manhole 13 is used by a worker to enter the inside of the fire prevention water tank 2 for work, or used as a hose insertion port for sucking water when performing a fire extinguishing activity such as a fire. Further, usually, a cover 15 having substantially the same size as the manhole 13 is provided in order to close the manhole 13. On the surface of the lid 15, two vertically elongated lifting holes 30 having a circular central portion and extending elongated from the central portion are provided. The lifting hole 30 is for lifting the lid 15 and is a portion into which a separately used rod (not shown) is inserted. More specifically, a projection slightly smaller than the vertically long portion of the lifting hole 30 is formed at the tip of the rod, and the tip of the rod is inserted into the lifting hole 30 to move the rod approximately 90 degrees in the circumferential direction. By rotating the projections by degrees, the projections come into contact with the back surface of the lid 30. When the rod is pulled up from this contact state, the rod that has contacted the back surface of the lid 30 locks the back surface of the lid 30, so that the lid 30 is lifted and the manhole 13 is opened.

第一連結部材１４は、図２及び図４に示すように、長尺形状を呈しており、横架部材１０に対して略垂直に設けられている。この第一連結部材１４の上面は、夫々の板材１１の下面と当接する部分である。詳しく説明すると、一方は溶接によって複数の板材１１の下面に固着された部分２０を有している。この固着された部分２０が本考案の溶着領域に相当する。また他方は、隣接する複数の板材１１の下面と当接し、ボルト１６を螺着するための螺着孔３１が設けられている。この螺着孔３１を備える他方の部分２１が本考案の締結領域に相当する。また、図２及び図４に示すように、横架部材１０の近傍に位置する第一連結部材１４の一端側は、横架部材１０のくびれた部分に溶接された補助支持部３４の上面に支持されている。つまり、第一連結部材１４は、補助支持部３４を介して横架部材１０に支持されている。 As shown in FIGS. 2 and 4, the first connection member 14 has an elongated shape, and is provided substantially perpendicular to the horizontal member 10. The upper surface of the first connecting member 14 is a portion that comes into contact with the lower surface of each plate 11. More specifically, one has a portion 20 fixed to the lower surfaces of the plurality of plate members 11 by welding. The fixed portion 20 corresponds to the welding area of the present invention. The other is provided with a screw hole 31 for contacting the lower surface of a plurality of adjacent plate members 11 and screwing the bolt 16. The other portion 21 provided with the screw hole 31 corresponds to the fastening region of the present invention. As shown in FIGS. 2 and 4, one end of the first connection member 14 located near the horizontal member 10 is provided on the upper surface of the auxiliary support portion 34 welded to a constricted portion of the horizontal member 10. Supported. That is, the first connection member 14 is supported by the horizontal member 10 via the auxiliary support portion 34.

防火水槽２の周壁３の上面４に当接する複数の板材１１の一辺側には、防火水槽２の外縁部分６から下方に屈曲して延出している延出部２２が設けられている。また、他辺側には、防火水槽２の外縁部分６から下方に屈曲して、さらに、防火水槽２の周壁３の上面４と当接している部分で内側方向に略直角に屈曲している当接部２３が設けられている。 On one side of the plurality of plate members 11 abutting on the upper surface 4 of the peripheral wall 3 of the fire protection water tank 2, there is provided an extension portion 22 that bends downward from the outer edge portion 6 of the fire protection water tank 2 and extends. On the other side, it is bent downward from the outer edge portion 6 of the fire protection water tub 2 and further bent inward at a substantially right angle at a portion in contact with the upper surface 4 of the peripheral wall 3 of the fire protection water tub 2. A contact portion 23 is provided.

延出部２２の外側面には、接合する複数の板材１１同士を互いに連結する連結金具１７が設けられている。詳しく説明すると、連結金具１７の一方は、溶接によって互いに接合する板材１１の延出部２２に固着され、他方はボルト１６を締結するための長孔３２が設けられている。この長孔３２にボルト１６を挿通して、延出部２２の外側面に設けられた螺着孔５２に固定することで、互いに接合する板材１１同士の連結を補強する。ここで、連結金具１７が本考案の第二連結金具に相当する。また図４に示すように、延出部２２の内側面に溶接され、防火水槽２の周壁３の上面４と当接して板材１１を支持する支持金具３３が設けられている。 On an outer side surface of the extension portion 22, a connection fitting 17 for connecting the plurality of plate materials 11 to be connected to each other is provided. More specifically, one of the connecting members 17 is fixed to the extending portion 22 of the plate member 11 joined to each other by welding, and the other is provided with an elongated hole 32 for fastening the bolt 16. The bolts 16 are inserted through the elongated holes 32 and are fixed to the screw holes 52 provided on the outer surface of the extension portion 22, thereby reinforcing the connection between the plate members 11 to be joined to each other. Here, the connecting fitting 17 corresponds to the second connecting fitting of the present invention. In addition, as shown in FIG. 4, a support bracket 33 that is welded to the inner surface of the extension portion 22 and that contacts the upper surface 4 of the peripheral wall 3 of the fire prevention water tank 2 to support the plate 11 is provided.

次に、防火水槽蓋１の組付方法について説明する。最初に、防火水槽２の上面開口部５の対向する辺に対して横架部材１０を架け渡す。次に、一端側に第一連結部材１４が取付けられている夫々の板材１１を、横架部材１０と略垂直に複数の板材１１を接合するように順次並設して、防火水槽２の上面開口部５を覆っていく。この防火水槽２の上面を覆う複数の板材１１のうち、少なくとも一枚はマンホール１３を備えた孔付板材１２によって構成されている。この孔付板材１２は複数の板材１１と同様の外周形状であることから、複数の板材１１の代わりに孔付板材１２を取付けることができる。次に、設置する複数の板材１１として、延出部２２を備えた複数の板材１１から先に設置していく。詳しくは、複数の板材１１の延出部２２を周壁３の外縁部分６に当接するように設置して、さらに、複数の板材１１を並設してから、当接部２３を備える複数の板材１１を、防火水槽２の周壁３の上面４に当接部２３が当接するように設置する。この当接部２３は、水平方向に平坦な面を有していることから、防火水槽２の外縁部分６の寸法が多少違っている場合であっても、現場で調節することで設置ができる。そして、接合する板材１１同士を連結するために、上方から作業者が貫通孔５３にボルト１６を挿通して、第一連結部材１４の螺着孔３１に締結する。また、貫通孔５０にボルト１６を挿通して、横架部材１０の螺着孔５１に締結する。同様に、複数の板材１１の側面に設けられている連結金具１７の長孔３２にボルト１６を挿通して、複数の板材１１の螺着孔５２に締結することで、接合する複数の板材１１同士が連結される。 Next, a method of assembling the fireproof water tank lid 1 will be described. First, the horizontal member 10 is laid over the opposite side of the upper surface opening 5 of the fire prevention water tank 2. Next, the respective plate members 11 to which the first connecting member 14 is attached at one end side are sequentially arranged side by side so as to join the plurality of plate members 11 substantially vertically to the transverse member 10, and the upper surface of the fireproof water tank 2 is arranged. The opening 5 is covered. At least one of the plurality of plate members 11 covering the upper surface of the fire prevention water tank 2 is configured by a plate member 12 with holes having manholes 13. Since the perforated plate 12 has the same outer peripheral shape as the plurality of plates 11, the perforated plate 12 can be attached instead of the plurality of plates 11. Next, as the plurality of plate members 11 to be installed, the plurality of plate members 11 having the extension portions 22 are installed first. More specifically, the plurality of plate members 11 are provided so that the extending portions 22 of the plurality of plate members 11 are in contact with the outer edge portion 6 of the peripheral wall 3, and the plurality of plate members 11 are arranged side by side, and then the plurality of plate members 11 is installed so that the contact portion 23 contacts the upper surface 4 of the peripheral wall 3 of the fire prevention water tank 2. Since the abutment portion 23 has a flat surface in the horizontal direction, even if the dimension of the outer edge portion 6 of the fire protection water tank 2 is slightly different, it can be installed by adjusting it on site. . Then, in order to connect the plate members 11 to be joined, an operator inserts the bolt 16 into the through hole 53 from above and fastens the bolt 16 to the screw hole 31 of the first connecting member 14. The bolt 16 is inserted through the through hole 50 and fastened to the screw hole 51 of the horizontal member 10. Similarly, the bolts 16 are inserted into the long holes 32 of the connection fittings 17 provided on the side surfaces of the plurality of plate members 11 and fastened to the screw holes 52 of the plurality of plate members 11, thereby joining the plurality of plate members 11 to be joined. Are connected to each other.

このように、上記の防火水槽蓋１によれば、上方が開放されている防火水槽２に対して、一方に第一連結部材１４を備える複数の板材１１を並設することで、上方からの作業によって防火水槽蓋１を現場で調節して取付けることができることから、設置、施工にかかる手間と労力が抑制される。さらに、複数の板材１１を並設することによってなる覆い部４０の一辺端部が当接部２３を備えることで、現場において、適宜防火水槽蓋１の形状を、防火水槽２の周壁３の上面４に合わせることができる。また、他辺端部が延出部２２を備えることで、防火水槽２の周壁３と当接していることから、防火水槽蓋１の水平方向の移動を抑制することができる。さらに、接合する板材１１の延出部２２に対して側面から第二連結部材１７が連結されていることによって、並設され、互いに接合する板材１１同士が強固に連結されるので、複数の板材１１の、横架部材１０の長手方向への移動防止が確実になる。また、複数の板材１１が並設された後からでも容易に連結することができる。また、防火水槽２から複数の板材１１を取外す場合であっても簡単に取外すことができる。さらに、複数の板材１１の表面に複数の突起２５を有することで、防火水槽蓋１の上に作業者が乗った場合でも、滑るのを防止することができる。さらに、防火水槽蓋１が山形形状を呈していることから、雨が降った場合でも、防火水槽蓋１の表面から、雨が速やかに流れ出されることができる。また、延出部２２の内側面に溶接され、防火水槽２の周壁３の上面４に当接する支持金具３３を設けることで、延出部２２の奏する効果を確実に発揮させることができる。さらに、延出部２２を備える複数の板材１１を、当接部２３を備える複数の板材１１と同様の高さに維持することができる。また、横架部材１０の近傍に位置する第一連結部材１４の一端側が、補助支持具３４によって支持されることで、板材１１にかかる負担が軽減されることになる。また、横架部材１０の下面に係止具４１が設けられることで、横架部材１０を防火水槽２の周壁３の上面４に取付けるときには、横架部材１０が防火水槽２内へ落下することを防止することができる。 As described above, according to the fire protection water tank lid 1 described above, the plurality of plate members 11 including the first connecting members 14 are arranged side by side with respect to the fire protection water tank 2 whose upper side is open, so Since the fire prevention water tank lid 1 can be adjusted and attached on site by work, the labor and labor involved in installation and construction can be reduced. Furthermore, by providing the abutting portion 23 at one end of the cover 40 formed by arranging the plurality of plate members 11 side by side, the shape of the fire prevention water tank lid 1 can be appropriately changed at the site by the upper surface of the peripheral wall 3 of the fire prevention water tank 2. 4 can be adjusted. In addition, since the other side end portion is provided with the extension portion 22 and is in contact with the peripheral wall 3 of the fire prevention water tank 2, the horizontal movement of the fire prevention water tank cover 1 can be suppressed. Furthermore, since the second connecting members 17 are connected from the side surfaces to the extending portions 22 of the plate materials 11 to be joined, the plate materials 11 which are juxtaposed and joined to each other are strongly connected to each other. 11 can be reliably prevented from moving in the longitudinal direction of the horizontal member 10. Further, the connection can be easily performed even after the plurality of plate members 11 are juxtaposed. In addition, even when the plurality of plate members 11 are removed from the fire prevention water tank 2, they can be easily removed. Furthermore, since the plurality of projections 25 are provided on the surface of the plurality of plate members 11, even when an operator gets on the fire prevention water tank lid 1, slippage can be prevented. Furthermore, since the fire prevention water tank lid 1 has a mountain shape, rain can quickly flow out of the surface of the fire prevention water tank lid 1 even when it rains. In addition, by providing the support bracket 33 which is welded to the inner side surface of the extension portion 22 and abuts on the upper surface 4 of the peripheral wall 3 of the fire prevention water tank 2, the effect of the extension portion 22 can be reliably exerted. Further, the plurality of plate members 11 including the extending portions 22 can be maintained at the same height as the plurality of plate members 11 including the contact portions 23. In addition, since the one end side of the first connecting member 14 located near the horizontal member 10 is supported by the auxiliary support 34, the load on the plate 11 is reduced. In addition, since the locking member 41 is provided on the lower surface of the horizontal member 10, when the horizontal member 10 is attached to the upper surface 4 of the peripheral wall 3 of the fire protection water tank 2, the horizontal member 10 falls into the fire protection water tank 2. Can be prevented.

以上、本考案について好適な実施形態を挙げて説明したが、本考案はこの実施形態に限定されるものではなく、以下に示すように、本考案の要旨を逸脱しない範囲において、種々の改良及び設計の変更が可能である。 As described above, the present invention has been described with reference to the preferred embodiment. However, the present invention is not limited to this embodiment, and various improvements and modifications can be made without departing from the gist of the present invention as described below. Design changes are possible.

本実施形態では、複数の板材１１の一辺端部が下方に延出する延出部２２を備えたものを示したが、全ての辺に延出部２２を設けた複数の板材１１を用いて防火水槽蓋１を形成してもよい。これによれば、防火水槽蓋１の水平方向の移動をより確実に抑制することができる。 In the present embodiment, an example in which one side end of the plurality of plate members 11 has the extension portion 22 extending downward is shown, but the plurality of plate members 11 having the extension portions 22 provided on all sides are used. A fireproof water tank lid 1 may be formed. According to this, the horizontal movement of the fire prevention water tank lid 1 can be suppressed more reliably.

本実施形態では、複数の板材１１の一辺端部が、下方に屈曲し、さらに内側方向に略直角に屈曲して当接されている当接部２３を備えたものを示したが、全ての辺に対して当接部２３を備えた複数の板材１１を形成してもよい。これによれば、現場において、より簡単に調整して設置することができる。 In the present embodiment, one end of one side of the plurality of plate members 11 is provided with the contact portion 23 which is bent downward and further bent inward at a substantially right angle to be abutted. A plurality of plate members 11 provided with contact portions 23 on the sides may be formed. According to this, adjustment and installation can be performed more easily on site.

本実施形態では、８枚の複数の板材１１によって防火水槽２を覆うものを示したが、８枚以上の複数の板材１１によって防火水槽２を覆ってもよい。これによれば、上面開口部５のより大きな防火水槽２に対しても本考案の防火水槽蓋１を設置することができる。また、８枚よりも少ない複数の板材１１によって防火水槽蓋１を形成する場合であっても、本考案と同様に防火水槽蓋１を設置することができる。 In the present embodiment, the fire prevention water tub 2 is covered with eight plate materials 11, but the fire prevention water tub 2 may be covered with eight or more plate materials 11. According to this, the fire protection water tank lid 1 of the present invention can be installed even in the fire protection water tank 2 having a larger upper surface opening 5. Further, even when the fire water tank cover 1 is formed by a plurality of plate members 11 less than eight, the fire water tank cover 1 can be installed similarly to the present invention.

本実施形態では、複数の板材１１に対して孔付板材１２を一枚備えるものを示したが、孔付板材１２を複数枚備えて設けてもよい。これによれば、例えば、火事などの消火活動の際には、マンホール１５から防火水槽２の内部に多くの消火用ホースを挿入することができる。 In the present embodiment, one plate member 12 with holes is provided for a plurality of plate members 11, but a plurality of plate members 12 with holes may be provided and provided. According to this, for example, when extinguishing a fire or the like, many fire extinguishing hoses can be inserted from the manhole 15 into the inside of the fire prevention water tank 2.

本実施形態では、長方形状の防火水槽２に対して防火水槽蓋１を示したが、例えば三角形状をした防火水槽に対しても本考案を適用することができる。 In the present embodiment, the fire protection water tank cover 1 is shown for the rectangular fire protection water tank 2, but the present invention can be applied to, for example, a triangular fire protection water tank.

本実施形態では、第一連結部材１４として、角パイプから構成するものを示したが、平板から構成するものであってもよい。ただし、角パイプを用いることによって、平板よりも強度が高くなる。 In the present embodiment, the first connecting member 14 is constituted by a square pipe, but may be constituted by a flat plate. However, by using a square pipe, the strength becomes higher than that of a flat plate.

本実施形態では、複数の板材１１の表面全体に縞模様の突起２５を設けたものを示したが、円形、方形の突起を設けてもよい。つまり、防火水槽蓋１に乗る人が滑るのを防止するための突起があればよい。 In the present embodiment, the stripe-shaped protrusions 25 are provided on the entire surface of the plurality of plate members 11, but circular or square protrusions may be provided. In other words, it is only necessary that there be a projection for preventing a person riding on the fire prevention water tank lid 1 from slipping.

本実施形態では、１本の横架部材１０によって複数の板材１１を支持するものを示したが、より大きな防火水槽２に適用する場合には強度的に弱くなるので、複数本の横架部材１０を用いて防火水槽蓋１を構成してもよい。尚、この複数本の横架部材１０を備える場合には、一対の横架部材１０の間にも複数の板材が架け渡されることになる。 In the present embodiment, the one in which the plurality of plate members 11 are supported by one transverse member 10 has been described. However, when applied to a larger fire prevention water tank 2, the strength becomes weak. The fire protection water tank lid 1 may be constituted by using 10. In the case where the plurality of horizontal members 10 are provided, a plurality of plate members are also bridged between the pair of horizontal members 10.

本実施形態では、周壁３の上端部分が地面よりも突出した防火水槽に対して設置する場合を示したが、周壁３の上端部分が地面よりも下方に位置する防火水槽や、地面と略水平に位置する防火水槽であってもよい。このような防火水槽であっても、上方からの作業だけで容易に設置することができることから、手間と労力を抑制することができる。ところで、この場合、周壁が地面に埋設されるため、前記実施形態のように延出部を周壁の外面に当接させることはできない。そこで、この場合には、周壁の内面に当接する延出部を別部材で形成するようにすればよい。これによれば、防火水槽蓋の左右方向の動きを抑制することができる。 In this embodiment, the case where the upper end portion of the peripheral wall 3 is installed in the fire protection water tank protruding from the ground is shown. However, the upper end portion of the peripheral wall 3 is located below the ground, or substantially horizontal with the ground. May be a fire prevention water tank. Even such a fire prevention water tank can be easily installed only by work from above, so that labor and labor can be reduced. By the way, in this case, since the peripheral wall is buried in the ground, the extension cannot be brought into contact with the outer surface of the peripheral wall as in the above embodiment. Therefore, in this case, the extension portion that contacts the inner surface of the peripheral wall may be formed by a separate member. According to this, the movement of the fire prevention water tank lid in the left-right direction can be suppressed.

本考案の実施形態である防火水槽蓋を示す斜視図である。It is a perspective view showing a fire prevention water tank lid which is an embodiment of the present invention. 防火水槽蓋の一部を分解した状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which disassembled a part of fire prevention water tank lid. 防火水槽蓋を示す平面図である。It is a top view which shows a fire prevention water tank lid. 防火水槽蓋を示す断面図である。It is sectional drawing which shows a fire prevention water tank lid. 従来の他の防火水槽蓋を示す説明図である。It is explanatory drawing which shows the other conventional fire prevention water tank lid.

Explanation of reference numerals

１防火水槽蓋
２防火水槽
３周壁
４周壁の上面
５上面開口部
１０横架部材
１１板材
１２孔付板材
１３マンホール（貫通孔）
１４第一連結部材
１５蓋体
１６ボルト
１７連結金具（第二連結部材）
２０溶着領域
２１締結領域
２２延出部
２３当接部
２５突起（滑り止め防止手段）
４０覆い部 DESCRIPTION OF SYMBOLS 1 Fire prevention water tank cover 2 Fire prevention water tank 3 Peripheral wall 4 Upper surface of peripheral wall 5 Upper surface opening 10 Horizontal member 11 Plate material 12 Plate material with holes 13 Manhole (through hole)
14 First connection member 15 Lid 16 Bolt 17 Connection fitting (second connection member)
Reference Signs List 20 welding area 21 fastening area 22 extension part 23 contact part 25 projection (anti-slip means)
40 Cover

Claims

For a fire prevention water tank having an upper surface opening surrounded by the peripheral wall, both ends are placed on the upper surface of the peripheral wall, and a transverse member bridged over the upper surface opening,
A member that covers the upper surface opening, and is disposed substantially perpendicular to a longitudinal direction of the transverse member, and one end is supported by the transverse member and the other end is supported by an upper surface of the peripheral wall. A covering portion having a plurality of plate members, and the plurality of plate members arranged side by side along the longitudinal direction of the horizontal member,
A first connection member that is provided for a joint portion between the plurality of plate materials arranged in parallel and that can connect the plurality of plate materials by an operation from above the cover portion,
At least one member included in the plurality of plate members, a perforated plate member having a through hole of a size capable of inserting a fire extinguishing hose into the fire prevention water tank,
And a lid for closing the through hole.

The first connection member is a long member arranged along a joint between the plurality of plate members,
On the upper surface of the first connection member, a welding region where the bottom surface of one plate material is welded, and a fastening region where the bottom surface of the other plate material is in contact with the bottom surface and fastened by bolts screwed from above the plurality of plate materials. The fire prevention water tank lid according to claim 1, which is provided.

At least one side edge of the covering portion is bent downward, and further, a contact portion that is bent at substantially a right angle inward and is in contact with the upper surface of the peripheral wall,
The fire prevention water tank lid according to claim 1 or 2, further comprising an extension part hanging down from near the other end and extending below the upper surface of the peripheral wall.

The fire prevention water tank lid according to claim 3, further comprising a second connection member that is a member that can be attached to the extension portion from a side and connects the plate members to be joined to each other.

The surface of the cover portion has a plurality of protrusions formed over the entire surface, and the protrusions are provided with anti-slip means for increasing a coefficient of friction between the shoe sole and the cover portion. The fire prevention water tank lid according to any one of claims 1 to 4.

The said cover part is formed in line symmetry centering | focusing on the said horizontal member, and exhibits the chevron shape which becomes high toward the said horizontal member side, The Claim 1 characterized by the above-mentioned. The fire tank cover described.