JP3820675B2

JP3820675B2 - Repair material injection tool for injecting repair material into cracks in concrete structures

Info

Publication number: JP3820675B2
Application number: JP11193797A
Authority: JP
Inventors: 順郎篠原; 勝吉今泉
Original assignee: ダイヤ技研株式会社; 勝吉今泉; 株式会社光▲とく▼技建
Priority date: 1997-03-07
Filing date: 1997-04-14
Publication date: 2006-09-13
Anticipated expiration: 2017-04-14
Also published as: JPH10306594A

Description

【０００１】
【発明の属する技術分野】
本発明は、コンクリート構造物に生じたひび割れに樹脂等の補修材を注入するための補修材注入具に関している。
【０００２】
【従来の技術】
コンクリート構造物に生じたひび割れに樹脂等の補修材を注入するための補修材注入具は、一例として特開平６−４２１９５号発明が知られている。この発明は、図８に示すように補修材の注入口２０を弾性シート１２に設けているので、補修材の注入時に弾性シート１２の変形に伴って注入口２０の向きが変ってしまい補修材の注入作業がしにくいという問題があり、又、弾性シート１２に注入口２０を取り付ける構造なので製造コストが高くなるといった問題があった。
【０００３】
本願発明者は上記の問題点を解決するため特開平９−３２３０８号発明を提案した。図９は、この発明の構造を示しており、補修材の注入部を台座１の周縁部に設け、この注入部と弾性シート９の下面とを台座１に設けた注入路２で連通させることによって弾性シート９から補修材の注入口を除去したものである。これにより補修材の注入作業が容易になり、又、弾性シートをそのまま組み込んでいるので製造が容易となる等の利点がある。
【０００４】
しかしながら、図９に示す構造では台座１に補修材の注入路２を設けているので、台座製造のための金型が複雑になって必ずしもコストダウンにならない等、欠点とは云えないまでも新たな問題となっている。
【０００５】
又、上記２つの従来例を含め、この種の注入具で円盤状の台座を使用するものにあっては、コンクリート表面への接地面積が大きいため、注入作業終了後にコンクリート表面に残る台座の貼り跡の清掃作業に手間取るという問題がある。このため、コンクリート表面に貼着する台座はできるだけ小さい方が望ましいことになる。
【０００６】
【発明が解決しようとする課題】
本発明が解決しようとする課題は、補修材を収容する弾性部材に補修材の注入口など他の部品を取り付けることなく、しかもコンクリート表面に貼着する台座の接地面積を従来よりも小さくした補修材注入具を提供しようとするものである。
【０００７】
又、本発明が解決しようとするもう１つの課題は、補修材を収容した弾性筒体の外側に被着して弾性筒体の破裂などの事故を防止するようにした補修材注入具を提供しようとするものである。
【０００８】
さらに本発明が解決しようとする他の課題は、樹脂の注入中にひび割れ部に塗布したパテシールの不完全部分から樹脂が漏出したときに樹脂の注入を中断することができる補修材注入具を提供しようとするものである。
【０００９】
【課題を解決するための手段】
本発明において課題を解決するための手段は、筒体に通孔を設けた筒状体を有する注入容器と、先端部が閉塞状態に設けられ管体に注出口が設けられた注入管を有する蓋部材とからなり、該蓋部材を上記注入管に注出口を閉塞状態となるようにチューブを装着して上記注入容器の筒状体内にねじ結合し、該筒状体の外周部に通孔を覆いかつ両端部を当該筒状体に固定して弾性筒体を装着したことを特徴とするものであり、又、注入容器は、筒状体の底部にフランジ状の台座が形成されたものであることを特徴としている。なお、弾性筒体は、両端部が締め具によって注入容器の筒状体に固定されているものであり、この他、組み立てた注入具の外側にカバー、好ましくは透明資材によるカバーが被着されたものであることを特徴としている。
【００１０】
又、他の解決手段は、蓋部材に筒状体の通孔を開閉する胴部又は弁体を設け、樹脂の注出量を制御できるようにしたことを特徴としている。
【００１１】
【発明の実施の形態】
図１から４が第１実施例を示しており、１は注入容器で筒状体２と該筒状体２の下端部に形成されたフランジ形状の台座３とから構成されている。４は蓋部材で、蓋体５と該蓋体５の下端部に軸方向に延びる注入管６により構成されている。注入管６は上記蓋体５に注入口６ａが開口しており、先端部が閉塞状態に形成されると共に先端部近傍に注出口７が設けられている。一方、注入管６の基端部近傍には外側に向って環状に張り出した膨出部８が形成されている。
【００１２】
上記注入容器１の筒状体２の上端開口部には雌ねじ部２ａが設けられ、又、蓋部材４の蓋体５の下端部には雄ねじ部５ａが設けられ、蓋部材４は注入管６を筒状体２の方から筒状体２内に差し込み、雄ねじ部５ａと雌ねじ部２ａとをねじ結合する。なお、蓋体５は周縁にローレットを形成するか又は平面角型に形成して回転しやすくしている。
【００１３】
９は注入管６に装着したゴム等のチューブであり、基端部を上記膨出部８に装着し、先端部は注入管６の先端部から突出する長さを有しており、常に当該注入管６に開孔した注出口７を閉塞状態に保持している。１０は筒状体２の外周面に装着したシリコーンゴム、その他の弾性資材による弾性筒体であって、両端部を締め具１１によって当該筒状体２に固定されているものである。
【００１４】
１２は注入容器１の筒状体２の壁面に設けた補修材の通孔であり、実施例では台座３に近い位置に開口されているが、開口位置は特に限定されない。
【００１５】
２０は弾性筒体１０の破裂などの事故を防止するためのカバーを示している。カバー２０は注入具全体の外側に被着するものであって、筒状に形成されたカバー主体２１は天板２２は有するが底板がなく開放されており、天板２２に差込み孔２３が開口されている。なお、カバー主体２１はコンクリート構造物３０に貼着した注入容器１に被せるものなので、直径が台座３の直径よりも大きく、又、組み立てられた状態で蓋部材４が収納できる高さに形成されており、カバー２０を被せたときに、カバー主体２１と補修材収容前の弾性筒体１０との間に充分な隙間が形成されることが必要である。
【００１６】
第１実施例は上記の構成であり、まず、注入具を組み立てるには、蓋部材４の注入管６にチューブ９を装着したのち注入管６を筒状体２内に差し込み、雄ねじ部５ａを筒状体２の雌ねじ部２ａにねじ結合する。又、筒状体２の外周部には弾性筒体１０を装着する。なお、弾性筒体１０は締め具１１によって両端部を固定しておく。
【００１７】
次に、注入具をコンクリート構造物３０のひび割れ部３１に貼着する。注入容器１の台座３に形成されている注入口３ａをコンクリート構造物３０のひび割れ部３１に当接して台座３を接着固定し、固定された注入具にカバー２０を被せる。次いで、天板２２の差込み孔２３を介して蓋体５に開口した注入口６ａから注入管６内へ樹脂を注入する。樹脂は注入管６の注出口７からチューブ９を押し拡げて筒状体２内に圧入され、さらに通孔１２を通って筒状体２の外側に排出し、弾性筒体１０を膨張させて該弾性筒体１０と筒状体２の外周部との間に収容される。
【００１８】
説明の都合上、ひび割れ部３１は誇張して図示されているが、実際のひび割れ部は文字通り筋状の割れ目状態である。又、注入具からひび割れ部３１内に注入した樹脂がコンクリート構造物３０の表面に漏出するのを防止するため、図７に示すようにコンクリート構造物３０の表面に注入具を取り付けた後にひび割れ部３１に沿って３０〜５０ミリメートルの幅、厚さ２〜３ミリメートルのパテシール３２を塗布する。
【００１９】
弾性筒体１０内に注入された樹脂は、弾性筒体１０の復元力によって通孔１２から注入口３ａを経てコンクリート構造物のひび割れ部３１内に充填される。なお、注入管６の注出口７はチューブ９によって閉塞されているので樹脂が蓋体５に逆流することはない。
【００２０】
図２に示すように、樹脂で膨らんだ弾性筒体１０からはひび割れ部３１に対してゆっくりした速度で樹脂を充填して行くが、弾性筒体１０に樹脂を供給する間にコンクリート構造物３０の表面に塗布したパテシールが不完全であったりして当該ひび割れ部の表面から樹脂が漏れ出したときは弾性筒体１０への樹脂の供給を中止する。この時、蓋部材４を外して注入容器１内の樹脂を取り除くなどをして弾性筒体１０からひび割れ部３１に樹脂が圧入されないようにする。
【００２１】
第１実施例のうち、図１〜３はカバー２０を注入具全体に被せる構造を示しているが、図４の実施例ではカバー１２０は注入容器１と蓋部材４との間に組み込む構造を示している。ここでは、カバー１２０は注入容器１の筒状体２に被せ、蓋部材４の注入管６は天板１２２の差込み孔１２３を介して筒状体２内に挿入し、注入容器１と蓋部材４をねじ結合してカバー１２０を固定する。
【００２２】
これにより、例えば注入具が貼着されるコンクリート構造物の面が垂直であったりした場合でも、カバー１２０は注入具から脱落したりすることがない。但し、カバー２０，１２０を使用しないで注入具を注入容器１と蓋部材４とによって構成することができることは勿論である。
【００２３】
図５は第２実施例を示している。第２実施例では蓋部材２０４に蓋体２０５の下端部に設ける雄ねじ部２０５ａに隣接して胴部２０５ｂが形成されており、又、注入容器２０１の筒状体２０２に設ける通孔２１２は上端部に形成した雌ねじ部２０２ａの近傍に設けている。
【００２４】
注入具は、蓋部材２０４の蓋体２０５が筒状体２０２から突出しておりかつ上記胴部２０５ｂが通孔２１２よりも上方に位置していて当該通孔２１２が開放状態となるように組み立てる（図５Ａ）。樹脂の注入中にひび割れ部から樹脂が漏出する場合は、注入容器２０１への注入作業を直ちに中止して蓋体２０５を回転して蓋部材２０４を押し下げ、胴部２０５ｂによって通孔２１２を閉塞する（図５Ｂ）。これにより弾性筒体１０に収容された樹脂が注入口２０３ａからひび割れ部に圧入されるのを阻止することができる。
【００２５】
図６は第３実施例を示している。第３実施例では注入管３０６の下端部に通孔１２を開閉する弁体３１３を設けている。弁体３１３は筒状体２の内径と概略同一の直径を有する円盤状のものであり、壁部３１４と孔部３１５とが９０度の位相で交互に形成されており、頂部に設けられた芯棒３１６を注入管３０６の先端部に当該注入管３０６と一体となるように圧入固定する。なお、芯棒３１６をねじ軸とし、注入管３０６の先端部に雌ねじを形成して両者をねじ結合することもある。
【００２６】
注入容器１は第１実施例のものと同じでよい。又、弁体３１３を注入管３０６に固定する前に注入管３０６にはチューブ９を取り付けておく。樹脂を注入容器１へ注入するときは、筒状体２の通孔１２と弁体３１３の孔部３１５とを一致させて通孔１２が開放されているように組み立てる（図６Ａ）。樹脂が漏れ出した場合は、蓋部材３０４を回転して弁体３１３の壁部３１４によって通孔１２を閉塞する（図６Ｂ）。
【００２７】
第２実施例及び第３実施例ではカバーを省略して説明したが、図示したようにカバーを使用しない場合は勿論であるが、第１実施例で説明したカバー２０，１２０を使用することができる。
【００２８】
実施例において注入具はプラスチックで成形され、台座の直径は約３センチメートル、注入具全体の高さは約５センチメートルとした。又、締め具については特定しないが、俗に云う地獄締めと称する治具を使用している。なお、カバー２０は補修材の注入状態または膨らんだ弾性筒体１０を監視できるように透明樹脂で形成されることが望ましい。
【００２９】
この他、注入具はコンクリート構造物３０のひび割れ部３１に沿って取り付けるが、ひび割れが長く延びている場合は注入具を３０〜４０センチメートルの間隔で設置するとよい。
【００３０】
【発明の効果】
本発明は、補修材を収容する弾性部材に注入口等の他の部品を取り付けることなく、しかも全体の構造が円筒状に構成されているので、樹脂注入時の樹脂の流れがよく、コンクリート構造物のひび割れ部に対して樹脂を確実に充填することができるものである。
【００３１】
又、注入容器と蓋部材とは着脱自在にねじ結合されているので、樹脂の注入時に注入具内部の点検を要する時、又は何らかの原因で弾性筒体が破裂する危険がある時は、蓋部材を外して容器内部の点検をしたり危険を解消したりすることができる。
【００３２】
この他、注入具にはカバーを被せているので、カバーを透明資材で形成した場合は、樹脂を収容する際の弾性筒体の膨らみ状況を監視でき、注入過多並びにひび割れ部への充填時における弾性筒体の破裂事故を防止することができる。
【００３３】
又、本発明は、蓋部材に筒状体の通孔部を開閉する胴部又は弁体を設けたものであるから、樹脂の注入中にひび割れ部に塗布したパテシールの不完全部分から樹脂が漏出した場合は、樹脂の注入を中断することができ、このためコンクリート構造物の表面に樹脂が流れ出るのを防止することができるものである。
【図面の簡単な説明】
【図１】第１実施例を示す全体の断面図。
【図２】第１実施例の使用状態を示す断面図。
【図３】第１実施例の構成部品の斜視図。
【図４】他の第１実施例を示す断面図。
【図５】第２実施例を示す断面図。
【図６】第３実施例を示す断面図。
【図７】注入具をコンクリート構造物に貼り付けた状態を示す正面図。
【図８】従来技術を示す断面図。
【図９】他の従来技術を示す断面図。
【符号の説明】
１注入容器
２筒状体
３台座
４蓋部材
５蓋体
６注入管
７注出口
８膨出部
９チューブ
１０弾性筒体
１１締め具
１２通孔
２０カバー
２１カバー主体
２２天板
２３差込み孔
３０コンクリート構造物
３１ひび割れ部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a repair material injecting tool for injecting a repair material such as resin into a crack generated in a concrete structure.
[0002]
[Prior art]
As an example of a repair material injection tool for injecting a repair material such as a resin into a crack generated in a concrete structure, Japanese Patent Laid-Open No. Hei 6-42195 is known. In the present invention, since the repair material injection port 20 is provided in the elastic sheet 12 as shown in FIG. 8, the direction of the injection port 20 is changed along with the deformation of the elastic sheet 12 when the repair material is injected. There is a problem that it is difficult to perform the injection operation, and the structure in which the injection port 20 is attached to the elastic sheet 12 causes a problem that the manufacturing cost increases.
[0003]
The present inventor has proposed the invention of Japanese Patent Laid-Open No. 9-32308 in order to solve the above problems. FIG. 9 shows the structure of the present invention, in which an injection portion for repair material is provided at the peripheral portion of the pedestal 1, and the injection portion and the lower surface of the elastic sheet 9 are communicated with an injection path 2 provided in the pedestal 1. Thus, the repair material injection port is removed from the elastic sheet 9. This makes it easy to inject the repair material, and has an advantage of facilitating manufacture because the elastic sheet is incorporated as it is.
[0004]
However, in the structure shown in FIG. 9, since the injection path 2 for the repair material is provided in the pedestal 1, the mold for manufacturing the pedestal becomes complicated and does not necessarily reduce the cost. Has become a serious problem.
[0005]
In addition, in this type of injection tool that uses a disk-shaped pedestal, including the above two conventional examples, since the ground contact area to the concrete surface is large, the pedestal remaining on the concrete surface after the pouring operation is pasted. There is a problem that it takes time to clean the traces. For this reason, it is desirable that the pedestal adhered to the concrete surface be as small as possible.
[0006]
[Problems to be solved by the invention]
The problem to be solved by the present invention is to repair an elastic member that accommodates the repair material without attaching other parts such as a repair material injection port, and to make the grounding area of the base attached to the concrete surface smaller than before. It is intended to provide a material injection tool.
[0007]
Further, another problem to be solved by the present invention is to provide a repair material injection tool that is attached to the outside of an elastic cylinder containing a repair material to prevent an accident such as rupture of the elastic cylinder. It is something to try.
[0008]
Furthermore, another problem to be solved by the present invention is to provide a repair material injection tool capable of interrupting resin injection when resin leaks from an incomplete part of a putty seal applied to a cracked part during resin injection. It is something to try.
[0009]
[Means for Solving the Problems]
Means for solving the problems in the present invention include an injection container having a cylindrical body with a through hole provided in the cylindrical body, and an injection pipe having a distal end portion provided in a closed state and a spout provided in the tubular body. A lid member, the tube is attached to the injection tube so that the spout is closed, and is screwed into the cylindrical body of the injection container, and a through hole is formed in the outer peripheral portion of the cylindrical body In which both ends are fixed to the cylindrical body and an elastic cylindrical body is mounted, and the injection container has a flange-shaped pedestal formed at the bottom of the cylindrical body It is characterized by being. The elastic cylinder has both ends fixed to the cylindrical body of the injection container with fasteners. In addition, a cover, preferably a cover made of a transparent material, is attached to the outside of the assembled injection tool. It is characterized by that.
[0010]
Another solution is characterized in that the lid member is provided with a body portion or a valve body for opening and closing the through hole of the cylindrical body so that the amount of the resin dispensed can be controlled.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show a first embodiment. Reference numeral 1 denotes an injection container, which is composed of a cylindrical body 2 and a flange-shaped base 3 formed at the lower end of the cylindrical body 2. Reference numeral 4 denotes a lid member, which includes a lid body 5 and an injection pipe 6 extending in the axial direction at the lower end of the lid body 5. The injection pipe 6 has an opening 6a opened in the lid 5, the tip is formed in a closed state, and a spout 7 is provided in the vicinity of the tip. On the other hand, in the vicinity of the base end portion of the injection tube 6, a bulging portion 8 projecting in an annular shape toward the outside is formed.
[0012]
A female screw part 2 a is provided at the upper end opening of the cylindrical body 2 of the injection container 1, and a male screw part 5 a is provided at the lower end part of the lid 5 of the lid member 4. Is inserted into the cylindrical body 2 from the cylindrical body 2, and the male screw portion 5a and the female screw portion 2a are screwed together. In addition, the cover body 5 forms a knurl in the periphery or it forms in a plane square shape, and makes it easy to rotate.
[0013]
9 is a tube made of rubber or the like attached to the injection tube 6, the base end is attached to the bulging portion 8, and the distal end has a length protruding from the distal end of the injection tube 6. The spout 7 opened in the injection tube 6 is kept closed. Reference numeral 10 denotes an elastic cylinder made of silicone rubber or other elastic material attached to the outer peripheral surface of the cylindrical body 2, and both ends thereof are fixed to the cylindrical body 2 by fasteners 11.
[0014]
Reference numeral 12 denotes a through hole for a repair material provided on the wall surface of the cylindrical body 2 of the injection container 1 and is opened at a position close to the pedestal 3 in the embodiment, but the opening position is not particularly limited.
[0015]
Reference numeral 20 denotes a cover for preventing accidents such as rupture of the elastic cylinder 10. The cover 20 is attached to the outside of the entire injection tool. The cover main body 21 formed in a cylindrical shape has a top plate 22 but is open without a bottom plate, and an insertion hole 23 is opened in the top plate 22. Has been. Since the cover main body 21 is placed on the injection container 1 adhered to the concrete structure 30, the diameter is larger than the diameter of the pedestal 3, and the cover member 21 is formed at a height that allows the lid member 4 to be stored in the assembled state. When the cover 20 is put on, a sufficient gap needs to be formed between the cover main body 21 and the elastic cylinder 10 before the repair material is accommodated.
[0016]
The first embodiment is configured as described above. First, in order to assemble the injection device, the tube 9 is attached to the injection tube 6 of the lid member 4, and then the injection tube 6 is inserted into the cylindrical body 2 and the male screw portion 5a is inserted. It is screwed to the female thread portion 2a of the cylindrical body 2. An elastic cylinder 10 is attached to the outer peripheral portion of the cylindrical body 2. Note that both ends of the elastic cylinder 10 are fixed by a fastener 11.
[0017]
Next, the injection tool is attached to the cracked portion 31 of the concrete structure 30. The injection port 3a formed in the pedestal 3 of the injection container 1 is brought into contact with the cracked portion 31 of the concrete structure 30 to adhere and fix the pedestal 3, and the cover 20 is put on the fixed injection tool. Next, the resin is injected into the injection tube 6 from the injection port 6 a opened in the lid 5 through the insertion hole 23 of the top plate 22. The resin expands the tube 9 from the spout 7 of the injection tube 6 and is press-fitted into the cylindrical body 2, and is further discharged through the through-hole 12 to the outside of the cylindrical body 2 to expand the elastic cylindrical body 10. It is accommodated between the elastic cylinder 10 and the outer peripheral part of the cylinder 2.
[0018]
For convenience of explanation, the cracked portion 31 is shown exaggeratedly, but the actual cracked portion is literally a streak-like crack. Further, in order to prevent the resin injected into the crack portion 31 from the injection tool from leaking to the surface of the concrete structure 30, the crack portion is attached after the injection tool is attached to the surface of the concrete structure 30 as shown in FIG. A putty seal 32 having a width of 30 to 50 millimeters and a thickness of 2 to 3 millimeters is applied along 31.
[0019]
The resin injected into the elastic cylinder 10 is filled into the crack portion 31 of the concrete structure through the injection hole 3a from the through hole 12 by the restoring force of the elastic cylinder 10. In addition, since the spout 7 of the injection tube 6 is closed by the tube 9, the resin does not flow back to the lid 5.
[0020]
As shown in FIG. 2, the elastic cylinder 10 swelled with the resin is filled with the resin at a slow speed with respect to the cracked portion 31, but the concrete structure 30 while the resin is supplied to the elastic cylinder 10. When the putty seal applied to the surface of the resin is incomplete and the resin leaks from the surface of the cracked portion, the supply of the resin to the elastic cylinder 10 is stopped. At this time, the lid member 4 is removed and the resin in the injection container 1 is removed to prevent the resin from being pressed into the cracked portion 31 from the elastic cylinder 10.
[0021]
In the first embodiment, FIGS. 1 to 3 show a structure in which the cover 20 is put on the entire injection tool, but in the embodiment of FIG. 4, the cover 120 has a structure to be incorporated between the injection container 1 and the lid member 4. Show. Here, the cover 120 is placed on the cylindrical body 2 of the injection container 1, and the injection tube 6 of the lid member 4 is inserted into the cylindrical body 2 through the insertion hole 123 of the top plate 122, and the injection container 1 and the lid member are inserted. The cover 120 is fixed by screwing 4.
[0022]
Thereby, for example, even when the surface of the concrete structure to which the injection tool is attached is vertical, the cover 120 does not fall off the injection tool. However, it goes without saying that the injection tool can be constituted by the injection container 1 and the lid member 4 without using the covers 20 and 120.
[0023]
FIG. 5 shows a second embodiment. In the second embodiment, the lid member 204 is formed with a body portion 205b adjacent to the male screw portion 205a provided at the lower end portion of the lid body 205, and the through hole 212 provided in the cylindrical body 202 of the injection container 201 has an upper end. It is provided in the vicinity of the female screw portion 202a formed in the portion.
[0024]
The injection tool is assembled so that the lid body 205 of the lid member 204 protrudes from the cylindrical body 202 and the body portion 205b is positioned above the through hole 212 so that the through hole 212 is in an open state ( FIG. 5A). If the resin leaks from the cracked portion during the injection of the resin, the injection operation into the injection container 201 is immediately stopped, the lid 205 is rotated and the lid member 204 is pushed down, and the through hole 212 is closed by the trunk portion 205b. (FIG. 5B). As a result, it is possible to prevent the resin contained in the elastic cylinder 10 from being pressed into the cracked portion from the injection port 203a.
[0025]
FIG. 6 shows a third embodiment. In the third embodiment, a valve body 313 for opening and closing the through hole 12 is provided at the lower end portion of the injection pipe 306. The valve body 313 has a disk shape having a diameter substantially the same as the inner diameter of the cylindrical body 2, and the wall portions 314 and the hole portions 315 are alternately formed at a phase of 90 degrees, and provided at the top portion. The core rod 316 is press-fitted and fixed to the tip of the injection tube 306 so as to be integrated with the injection tube 306. In some cases, the core rod 316 is used as a screw shaft, and a female screw is formed at the tip of the injection tube 306 to couple them together.
[0026]
The injection container 1 may be the same as that of the first embodiment. Before the valve body 313 is fixed to the injection tube 306, the tube 9 is attached to the injection tube 306. When injecting the resin into the injection container 1, the through hole 12 of the cylindrical body 2 and the hole portion 315 of the valve body 313 are aligned so that the through hole 12 is opened (FIG. 6A). When the resin leaks, the lid member 304 is rotated to close the through hole 12 by the wall portion 314 of the valve body 313 (FIG. 6B).
[0027]
Although the second embodiment and the third embodiment have been described with the cover omitted, the cover 20 or 120 described in the first embodiment can be used, as a matter of course, as illustrated. it can.
[0028]
In the examples, the injection tool was made of plastic, the pedestal diameter was about 3 centimeters, and the overall height of the injection tool was about 5 centimeters. Moreover, although it does not specify about a fastener, the jig | tool called the hell tightening so-called is used. The cover 20 is preferably formed of a transparent resin so that the repair material can be injected or the expanded elastic cylinder 10 can be monitored.
[0029]
In addition, although an injection tool is attached along the crack part 31 of the concrete structure 30, when a crack is extended long, it is good to install an injection tool at the interval of 30-40 centimeters.
[0030]
【The invention's effect】
In the present invention, since the entire structure is configured in a cylindrical shape without attaching other parts such as an injection port to the elastic member that accommodates the repair material, the resin flow at the time of resin injection is good, and the concrete structure The resin can be reliably filled in the cracked portion of the object.
[0031]
Also, since the injection container and the lid member are detachably screwed together, the lid member should be used when the inside of the injection tool needs to be inspected at the time of resin injection or when there is a risk of the elastic cylinder bursting for some reason. The inside of the container can be inspected and the danger eliminated.
[0032]
In addition, since the injection tool is covered with a cover, when the cover is formed of a transparent material, the swelling state of the elastic cylinder when the resin is accommodated can be monitored. A rupture accident of the elastic cylinder can be prevented.
[0033]
In the present invention, the lid member is provided with a body portion or a valve body for opening and closing the through-hole portion of the cylindrical body, so that the resin is introduced from the incomplete portion of the putty seal applied to the cracked portion during the resin injection. In the case of leakage, the injection of the resin can be interrupted, so that the resin can be prevented from flowing out to the surface of the concrete structure.
[Brief description of the drawings]
FIG. 1 is an overall cross-sectional view showing a first embodiment.
FIG. 2 is a cross-sectional view showing a usage state of the first embodiment.
FIG. 3 is a perspective view of components of the first embodiment.
FIG. 4 is a cross-sectional view showing another first embodiment.
FIG. 5 is a sectional view showing a second embodiment.
FIG. 6 is a sectional view showing a third embodiment.
FIG. 7 is a front view showing a state where an injection tool is attached to a concrete structure.
FIG. 8 is a cross-sectional view showing a conventional technique.
FIG. 9 is a cross-sectional view showing another conventional technique.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Injection container 2 Cylindrical body 3 Base 4 Lid member 5 Lid body 6 Injection pipe 7 Outlet 8 Swelling part 9 Tube 10 Elastic cylinder 11 Fastener 12 Through-hole 20 Cover 21 Cover main body 22 Top plate 23 Insertion hole 30 Concrete Structure 31 Cracked part

Claims

An injection container (1) having a cylindrical body (2) formed in a cylindrical body and provided with a through hole (12) in the cylindrical body, and a spout ( 7) comprising a lid member (4) having an injection tube (6) provided with a tube (9) such that the lid member (4) is closed to the injection tube (6) and the spout (7) is closed. And is detachably fixed in the cylindrical body (2) of the injection container (1), covers the through hole (12) on the outer peripheral portion of the cylindrical body (2), and both ends are connected to the cylinder. A repair material injecting tool for injecting a repair material into a crack in a concrete structure, characterized in that the elastic cylinder (10) is attached to the cylindrical body (2).

The injection container (1) has a flange-shaped base (3) formed at the bottom of the cylindrical body (2), and injects the repair material into the cracks in the concrete structure according to claim 1. Repair material injection tool for.

2. The concrete structure according to claim 1, wherein a bulging portion (8) is formed on an outer side of the injection pipe (6), and a tube (9) is attached to the bulging portion (8). Repairing material injection tool for injecting repairing material into cracks.

The elastic cylinder (10) has both ends fixed to the cylinder (2) by fasteners (11), and the repair material is injected into the crack of the concrete structure according to claim 1 characterized by the above-mentioned. Repair material injection tool for.

The repair material injection tool for injecting a repair material into a crack in a concrete structure according to claim 1, wherein the injection container (1) and the lid member (4) are fixed by screw connection.

The body member (205b) is formed adjacent to the male thread part provided at the lower end of the cover body (205), and the body part (205b) is formed in the through hole ( 212. The repair material injecting tool for injecting a repair material into a crack in a concrete structure according to claim 1, wherein the repair material is injected at a position higher than 212).

A valve body in which a lid member (304) slides on an inner diameter portion of a cylindrical body (2) at a lower end portion of an injection pipe (306) and wall portions (314) and hole portions (315) are alternately formed. (313) is provided, and the valve body (313) is assembled at a height matching the through hole (12) of the cylindrical body (2). Repair material injection tool for injecting repair materials.

The valve body (313) is provided with a core rod (316) at the top, and the core rod (316) is press-fitted and fixed to the lower end portion of the injection pipe (306). Repair material injection tool for injecting repair material into cracks in concrete structures.

A cover (20) to be attached to the outside of the injection tool, wherein an insertion hole (23) is formed in a cylindrical cover main body (21) and a top plate (22) formed in the cover main body (21). The concrete according to claim 1, characterized in that a cover (20) provided is placed on the outside of the assembled pouring tool so that the insertion hole (23) and the opening of the pouring pipe (6) coincide. Repair material injection tool for injecting repair material into cracks in structures.

The cover (120) has a top plate (122) sandwiched between the cylindrical body (2) and the lid (5), and repair material for cracks in the concrete structure according to claim 9 Repair material injection tool for injecting.

The repair material injection tool for injecting a repair material into a crack of a concrete structure according to claim 9 or 10, wherein the cover (20, 120) is formed of a transparent material.