JP5166788B2 - Grout injection device for sleeve - Google Patents

Description

The present invention relates to an apparatus for injecting a grout material into a sleeve that can be easily installed on each floor of a building used as a means for connecting reinforcing bars.

  In recent years, a sleeve is often used as a means for firmly connecting reinforcing bars. In the sleeve, reinforcing bars are arranged in a loosely fitted state, and a grout material is injected into the inner space to integrate the reinforcing bars. It has become. PCa has been remarkably progressed due to the shortening of the construction period and the stability of construction. As a result, there are many reinforcing bars that are integrated using sleeves in various parts including the connection of PCa members on the same floor, and the grout The amount of material used has increased to several times that of the prior art.

  At that time, the grout material is stirred and mixed using a large-capacity mixer which is heavy in weight, and the grout material is moved to an upper floor where the grout material is necessary, or is mixed and stirred with a small-capacity hand mixer. The fact was that they depended on the means of the human sea by a large number of contractors who stuff them in cans and buckets and transport them to the grout location by human power.

  However, moving to the upper floors using the large-capacity mixer, which is heavy in weight, requires moving by crane and disassembling and assembling the equipment. However, it is necessary to reinforce the place to place heavy objects on the upper floor of a building that has not yet obtained sufficient strength in a state where a concentrated load is applied. If a small-capacity hand mixer is used, grout There was a problem that it was difficult to secure a labor force when the amount of wood used increased.

JP 2006-348468 A

The present invention is to solve the above drawbacks, even small hand mixer capacity, the hand mixer to prepare dispersed few cars double, discharge hose, by using a reservoir and injection hose, must It is possible to obtain a grout material with a capacity of Moreover, the grout material injection | pouring apparatus which enabled quick injection | pouring of the grout material to the sleeve used as a construction location rapidly without interruption in the state which has optimal viscosity is provided.

10L to 30L small capacity hand mixer that stirs grout material in grout material injection device that can be easily moved to the upper floor for injecting grout material into sleeves that connect rebars used as structural materials of buildings A grout material supply device comprising a frame and a frame that can disperse and arrange a plurality of containers to be arranged in parallel, and a stirring means for stirring the grout material in the hand mixer is detachably fixed to a frame standing on the frame A locking device, a primary storage tank having a primary pressure pump connected to the plurality of containers by a primary discharge hose, and the primary storage tank and the secondary discharge hose. a secondary reservoir having a second order pressure pump coupled, one end and the other end is connected to the said secondary reservoir is equipped with an injection device for injecting grout into the sleeve to the tip Note Wherein the grout injection apparatus to become more sleeve and hose.

Also it features grout injection device into the sleeve provided with a control device for adjusting the closing and injection force and injection amount for injecting grout into the sleeve to the injection device of the injection hose tip.

Further, the a plurality of primary discharge hose that matches the number of hand mixer to the primary pressure pump capable and a branch plate provided for mounting a plurality of said primary discharge which branches attached to the branch plate hose, characterized by grout injection apparatus into sleeves can select one of the hand mixer by switching of that.

Further, the switching of the plurality of primary discharge hoses is characterized by a grout material injection device into the sleeve which is performed manually or by an automatic device for sensing the amount of grout material in the hand mixer .

  In place of the conventional large-capacity large mixer, multiple small-capacity hand mixers are prepared, and by using the discharge hose, storage tank, and injection hose, the grout material obtained by stirring can be used in containers such as cans and buckets. It was possible to eliminate the work of packing and transporting to the construction site. In addition, it has become possible to efficiently systemize the grout material injection into the sleeve.

  In addition, when using a large mixer, moving to the upper floor requires moving by crane and disassembling and assembling the equipment, which requires a lot of work each time it is moved. It was necessary to reinforce the place to place the heavy load on the upper floor of the building that was not obtained in a state where a concentrated load was applied, but this was solved by using a small-capacity hand mixer It became possible.

  In addition, during and after use, a large amount of grout material adhered to the inner wall of the large mixer, which was difficult due to hindering stirring and cleaning, etc. It became easier.

  Embodiments will be described below with reference to the drawings.

FIG. 1 shows an outline of an apparatus for injecting a grout material into a sleeve according to the present invention.

  A plurality of hand mixers 1 (hereinafter referred to as “hand mixer 1” including the container 1a and the stirring means 1b) having a small capacity of about 10L to 30L are prepared at a construction site where the grout material injection into the sleeve is required. The required number will be decided according to the scale of construction. The hand mixer 1 is connected to a primary pumping pump 3 via a primary discharge hose 2. The grout material of the primary storage tank 4 serving as a hopper or a storage container (hereinafter collectively referred to as a storage tank) serving as a hopper or a tank that temporarily stores or passes by the force of the primary pump 3 is It is discharged to the secondary storage tank 7 by the secondary pumping pump 6 force through the secondary discharge hose 5, and the discharge force and the discharge amount are controlled by the secondary pumping pump 6 from the secondary storage tank 7. The sleeve 10 is injected through the injection hose 8 and the injection device 9 at the tip thereof.

  Each of the hand mixers 1 is small, has a capacity of about 10 L to 30 L, and is light in weight. Therefore, the hand mixer 1 can be easily moved to the upper floor where the grout material is injected.

  The hand mixer 1 is moved to the upper floor as described above, and distributedly installed on the gantry 11. The grout material is stirred in the container 1a of the hand mixer 1 by the stirring means 1b. The stirring means 1b can be moved, and can be manually stirred, or can be automatically stirred by being fixedly locked to the frame 12 erected from the mount 11. In the initial stage of stirring the grout material, the grout material in the container 1a is uniformly stirred manually, and when the fluidity is obtained to some extent, the stirring means 1b is fixedly locked to the frame 12 described above. In addition, the grout material can be automatically stirred. Further, the stirring time can be easily controlled by a control means attached to the stirring means 1b.

  In an appropriate number of hand mixers 1 that are dispersedly installed on the gantry, water such as SSM (SS mortar), SSM120N (SS mortar 120N), etc., which is a grout material in a bag, is charged, as described above. The stirring means 1b is fixedly locked to the frame 12 of the gantry so as to be stirred automatically for 30 seconds by hand, and then kneaded for 1 minute 30 seconds. Grout material is about 25kg per bag, and about 4L of water is added to it. The tip of the primary discharge hose 2 is inserted into one of the plurality of hand mixers 1, and the other end is connected to the primary pressure feed pump 3 side. The grout material stirred and mixed by the hand mixer 1 is discharged from the primary discharge hose 2 to the primary storage tank 4. When the previously selected hand mixer 1 becomes empty, the primary discharge hose 2 is sequentially transferred to the next hand mixer 1 prepared in advance.

  The pump used for the primary pumping pump 3 may be small, and the grout material is discharged from the hand mixer 1 by the primary pumping pump 3 and temporarily stored in or passed through the primary storage tank 4. It will be. Air is mixed into the grout material stored in the storage tank 4 by this discharge process.

  A secondary discharge hose 5 is connected to the primary storage tank 4 of the primary pumping pump 3, and the grout material mixed with air is discharged to the secondary storage tank 7 by the force of the secondary pumping pump 6. When the air is removed, the air is removed and transferred to the secondary storage tank 7.

  As a discharge force from the secondary storage tank 7, a secondary pump 6 having a capacity capable of injecting a grout material into the sleeve 10 located at a height of about 50 m in the horizontal direction and about 3 m in the vertical direction. Is appropriate.

  The grout material is injected from the injection hose 8 and the injection device 9 at the tip of the other end side through the injection port of the sleeve 10 by the pressure of the secondary pump 6 and the reinforcing bars are firmly connected.

  One end side of the primary discharge hose 2 is inserted into the hand mixer 1, and the other end side is connected to the primary pressure feed pump 3, but the primary pressure feed pump 3 leads to the primary storage tank 4. A branch board 13 is provided immediately before the injection port, and several primary discharge hoses 2, 2 ′, 2 ′ are connected to the branch board 13, and one end side of each is connected to another hand mixer 1. Then, a branch path is formed. The one shown in FIG. 2 is connected to three primary discharge hoses 2, 2 ′, 2 ′ that form a three-branch path.

  With the above configuration, it is possible to select one of the primary discharge hoses 2, 2 ', 2' connected to the branch board 13, and when one of the hand mixers 1 becomes empty, By switching to the hand mixer 1, grout material can be obtained continuously. The switching may be performed manually by a handle operation or the like, or may be performed by automatic means for sensing the amount of grout material in the hand mixer 1.

  The grout material discharged from the secondary storage tank 7 by the discharge force of the secondary pumping pump 6 is injected from the injection port of the sleeve 10 by using the injection device 9 at the tip thereof from the injection hose 8. However, the injection device 9 can control the injection input or the injection amount and the start and stop of the injection.

  As described above, the adjustment of the injection amount of the grout material into the sleeve 10 and the temporary stop of the discharge when moving to the other sleeve 10 can be easily controlled at hand.

The schematic of the grout material injection | pouring apparatus to the sleeve of this invention. The top view which shows the state which connected the some primary discharge hose to the branch board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hand mixer 2 1st discharge hose 3 1st pumping pump 4 1st storage tank 5 2nd discharge hose 6 2nd pumping pump 7 2nd storage tank 8 injection hose 9 injection device 10 sleeve 11 mount 12 Frame 13 switchboard

Claims (4)

10L to 30L small capacity hand mixer that stirs grout material in grout material injection device that can be easily moved to the upper floor for injecting grout material into sleeves that connect rebars used as structural materials of buildings A grouting material supply device comprising a gantry and a frame that can disperse and arrange a plurality of containers to be arranged in parallel, and a stirring means for agitating the grouting material in the hand mixer are detachably fixed to a frame standing on the gantry. A locking device, a primary storage tank having a primary pressure pump connected to the plurality of containers by a primary discharge hose, and the primary storage tank and the secondary discharge hose. a secondary reservoir having a second order pressure pump coupled, one end and the other end is connected to the said secondary reservoir is equipped with an injection device for injecting grout into the sleeve to the tip Note Grout injection device into the sleeve, characterized in that the more the hose. Grout injection device into the sleeve of claim 1, characterized in that a control device for opening and closing and adjustment of the injection force and injection amount of the grout into the sleeve to the injection device of the injection hose tip for injection . A branch board is provided that allows a plurality of primary discharge hoses corresponding to the number of hand mixers to be attached to the primary pumping pump, and the plurality of primary discharge hoses that are branch-attached to the branch board are: its grout injection device into the sleeve according to claim 1 or 2, characterized in that a selectable one of the hand mixer by switching the. 4. The grout material injection device for a sleeve according to claim 3 , wherein switching of the plurality of primary discharge hoses is performed manually or by an automatic device for sensing the amount of grout material in the hand mixer .

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