JPS6389050U

JPS6389050U -

Info

Publication number: JPS6389050U
Application number: JP18461786U
Authority: JP
Priority date: 1986-11-29
Filing date: 1986-11-29
Publication date: 1988-06-09

Description

[Brief explanation of drawings]

第１図は本考案装置の全体を示す概略説明図、
第２図及び第３図はその構成部材であるグラウト
材注入ノズルと水または界面活性剤溶液を圧入す
る注入ノズルの他の実施例を示す図面、第４図は
カプラーへのグラウト材の注入状態を示す概略図
、第５図は注入ノズルの悪い配置例を示す図、第
６図は第２表の実験状態の説明図である。１はグラウト材注入用ノズル、３はカプラー、
４は注入孔、８は注入ノズル、９はエアーコンプ
レツサー、１０はエアー配管、１１はエアーデポ
ジツトタンク、１２は二段シリンダー装置、１４
は高圧側シリンダー機構、１６はタンク、１７は
出力側シリンダー室、２０は逆止弁機構。 FIG. 1 is a schematic explanatory diagram showing the entire device of the present invention;
Figures 2 and 3 are drawings showing other embodiments of the grout injection nozzle and the injection nozzle for pressurizing water or surfactant solution, which are its constituent members, and Figure 4 shows the state of grout injection into the coupler. FIG. 5 is a diagram showing an example of bad arrangement of injection nozzles, and FIG. 6 is an explanatory diagram of the experimental conditions shown in Table 2. 1 is a grout injection nozzle, 3 is a coupler,
4 is an injection hole, 8 is an injection nozzle, 9 is an air compressor, 10 is an air pipe, 11 is an air deposit tank, 12 is a two-stage cylinder device, 14
1 is a high pressure side cylinder mechanism, 16 is a tank, 17 is an output side cylinder chamber, and 20 is a check valve mechanism.

Claims

[Scope of Claim for Utility Model Registration] (1) A grout injection nozzle for press-filling cement-based grout between the screw threads through an injection hole formed in a coupler constituting a threaded reinforcing bar coupler joint, and water or a surfactant as well. It is integrally equipped with an injection nozzle for pressurizing the solution, and prevents pressure drop when water or surfactant solution is pressurized by the injection nozzle in the middle of the air piping that supplies compressed air to these two nozzles from an air compressor. At the same time, an air deposit tank that instantly activates the two-stage cylinder device described later and switches the flow path, and a two-stage cylinder device with different cross-sectional areas to increase the pressure of the water or surfactant solution are also installed. A grout injection device characterized in that the output side cylinder chamber of the high pressure side cylinder mechanism of the two-stage cylinder device is communicated with a water or surfactant solution tank via a check valve mechanism. (2) The grout injection device according to claim 1, wherein both the nozzles are arranged in parallel with a required interval so as not to interfere with each other during use. (3) The injection of grout according to claim 1 of the registered utility model claim, characterized in that the injection nozzle is integrally fitted on the outside of a grout injection nozzle so as to be concentric with the nozzle. Device. (4) The grout material according to claim 1 of the utility model registration, characterized in that both the nozzles are arranged close to each other in parallel, and the injection nozzle is movable in a retractable manner relative to the grout injection nozzle. injection device.