JPS597972Y2 - Mold material for forming injection port - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mold material for forming a repair fluid inlet when repairing a crack in a structure such as concrete or stone by filling it with a repair fluid.

Generally, when filling a repair liquid into a crack, adhesive tape is pasted across the crack, the crack is sealed with an appropriate sealant, and then the tape is peeled off to form an injection port. A commonly used method is to press a repair fluid filling nozzle with a rubber opening at its tip into pressure contact with the injection port to fill the crack with repair fluid.

In this method, the tip of a thin nozzle must be pressed onto a narrow crack, but it is not possible to visually confirm whether the crack and the liquid flow opening of the nozzle are aligned during pressure contact. , it was a matter of the worker's intuition.

Therefore, the liquid flow port often becomes misaligned, and
If you start press-fitting the repair liquid in this state, only the liquid pressure will rise, and the repair liquid that leaked from between the nozzle and the opening or between the opening and the concrete surface will adhere to the entrance of the crack and harden. However, this resulted in incomplete repair results.

In order to correct these shortcomings in the conventional construction method, the present invention provides a mold material for forming an injection port such that the liquid flow port of the nozzle is reliably located above the crack when filling the repair liquid. As shown in the drawings, the outer shape of the mold 1 is shaped to be approximately the same as the shape of the elastic abutment 14 provided at the tip of the nozzle 12, and the outer periphery of the mold 1 is provided with a The two opposing notches 2 and 3 are shaped to form an inlet-shaped precept material.

When forming the injection port for the repair liquid using this mold material 1,
First, as shown in FIG. 3, it is customary to place the cracks at appropriate intervals on the crack 10 (at intervals equal to the depth of the crack).

) Temporarily glue the mold material 1. At this time, if the notches 2 and 3 facing each other are positioned on the crack 10, the notches 2 and 3 are facing each other on the center line l of the molded material 1, so the crack 10 is placed on the crack 10. It will pass through the center of

After placing the molding materials 1, 1 on the crack 10, a seal 11 is formed on the exposed crack 10 with a sealant made of resin or inorganic material, and when the sealing material 11 is hardened, the molding material 1, When the mold material 1 is peeled off, an injection port having substantially the same shape as the mold material 1 is formed with the crack 10 passing through the center.

Next, the elastic abutment 14 provided at the tip of the nozzle 12 connected to a repair liquid filling machine (not shown) is pressed into contact with the injection port, and the injection port is formed of a profile 1 having approximately the same shape as the elastic abutment 14. For this purpose, as shown in FIGS. 4 and 5, the resilient abutment 14 is positioned at the inlet and its center can be easily positioned over the center of the inlet, ie, over the crack 10.

Moreover, uneven coating of the sealant, shrinkage of the sealant when it hardens, and slight peeling of the seal 11 that occurs when the mold material 1 is peeled off occur, causing the elastic abutment 14 and the seal 11 to peel off, as shown in FIG. Although there is a slight gap 16 between the mold material 1 and
Since the seal 11 is in a protruding state on the crack 10 corresponding to the notches 2 and 3, the crack 10 is not exposed between the elastic abutment 14 and the seal 11.

When the repair liquid filling machine is operated to start injecting the repair liquid, the repair liquid is smoothly injected into the crack 10 through the liquid flow port 13 of the nozzle and the through hole 15 of the elastic abutment that communicates with the liquid flow port 13. It is.

As described above, by using the profile according to the present invention, it is possible to form an injection port that can reliably position the elastic through-hole provided at the tip of the nozzle on the crack, and also to press the nozzle into contact. Cracks can be completely sealed.

Therefore, the repair liquid is reliably injected into the crack, and there is no need to worry about incomplete injection due to retention of the solution at the entrance of the crack and hardening.

In the above example, a circular shape is shown because the shape of the elastic material provided at the tip of the nozzle is generally circular. Good (see Figure 6).

Further, the notch is used to form a state in which the seal protrudes above the crack, and its shape is not limited.

Furthermore, although the above embodiment shows two notches facing each other, as shown in FIG.
It is also possible to form cutout portions that face each other on a plurality of center lines lZIII.

In this case, there is an advantage that one notch can be used even if one of the notches is damaged by a sealant or the like.

In each of the above embodiments, the face plate is used as the shape material, but as shown in FIG. 8, the frame 21 may be used as the shape material, and as shown in FIG. 9, the center of the face plate A hole 22 may be bored in the section to form a mold material.

In this case, the crack can be visually recognized within the mold material when temporarily bonding the mold material onto the crack.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Figure 1 is a plan view of the mold material, Figure 2 is a perspective view of the mold material, Figure 3 is a plan view of the mold material temporarily attached to the crack, and Figure 4 is a plan view of the mold material temporarily attached to the crack. FIG. 5 is a plan view of the nozzle in press-contact state, FIG. 5 is a sectional view taken along ■-■ in FIG. 4, and FIGS. 6, 7, 8, and 9 are plan views of mold materials in other embodiments be. 1... Shape material, 2, 3... Notch part.

Claims (1)

[Scope of utility model registration request] The outer shape is substantially the same as the shape of the elastic tip provided at the tip of the nozzle, and at least two notches are formed on the outer periphery of the nozzle, facing each other on the center line. Inlet type precept material.