JPH0455149Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The clip grout injector of this invention is used to inject durable adhesive into areas where building structures have cracked due to deterioration over time. It is related to vessels.

Prior Art Reinforced concrete walls develop cracks over time due to ground subsidence and rusting of the reinforcing bars. As a result, epoxy resin was injected into the cracks to repair or prevent rain leaks. The reason why epoxy resin had to be injected into the cracks in the exterior walls of reinforced concrete buildings had to be repeatedly injected with additional resin every few years. It was determined that the debris had been washed away after being washed away. For this reason, it became necessary to adapt the viscosity of the resin to be injected depending on the width of the crack, and to establish a method for controlling the amount of resin injected. (Architectural Technology 1985.1 No.401) As a resin injector on the market, a metal mounting washer is glued to the injection hole, one end of the bellows filled with resin is attached to this metal mounting washer, and the other end of the bellows is attached to the metal mounting washer. There are some that inject resin by pressing with a pressure spring, but in some cases the resin is injected into the bellows by about 20%.
There is a problem that resin remains.

In addition, if the viscosity of the resin does not match the crack width and the viscosity is too low, there is a problem that it will flow down before it hardens and create a cavity. However, there is a problem in that it is not possible to adjust the injection port or the force of the pressing spring. Furthermore, the expensive metal mounting base has the problem that the drilled holes must be cleaned after each use.

Problems to be Solved by the Invention The clip grout injector of the invention has the above-mentioned problems such as the inability to adjust the pressure of the injection port and the pressure spring depending on the viscosity of the injection resin, and the fact that a large amount of The aim is to create a syringe that solves problems such as residual resin, time-consuming processing after use since the syringe is used in large quantities, and the cost of disposable parts. be.

Means for Solving the Problems The clip grout syringe of the present invention has engaging parts on both sides, and the deformable container adhesive syringe has a punctureable sealing film 7 in the middle thereof. A pouring spout 5 into which a blind lid 6 fits is provided, and a pouring seat 8 has a mounting portion 9 for attaching and supporting the injector by fitting the spout 5 into the concrete crack surface during use, and the sealing film is placed in the center of the mounting portion. Injection pipe 12 that breaks through
are provided on the side opposite to the mounting surface, and the pressing pieces 16 act in the direction approaching the pressing pieces 16 fitted into the engaging portions on both sides of the deformable containers 3, 3' to press the adhesive. An essential configuration is a structure in which a mounting portion 17 is provided to which the elastic member 18 is attached.

First Embodiment An embodiment of the present invention will be described below based on the drawings. The syringe 1 is a bellows 3 whose both ends are sealed with concave portions 2 which also serve as engagement portions.
A spout 5 with a male thread 5a carved on the outside is provided in the middle part 4, and after the bellows 3 is filled with the adhesive a prepared before use,
The blind lid 6 is fitted. The blind lid 6 has a sealing film 7 that can be pierced by an injection tube to be described later. The bellows 3 is made of plastic, preferably a polyethylene bellows, but is not necessarily limited to this, and other materials having the same effect can also be used.

Furthermore, if the sealing film 7 is a plastic film such as a soft rubber-based plastic film, the entire clip grouting syringe of the present invention can be disposed of at once as plastic waste, and the cost can be reduced. There is. Further, this sealing film may be a soft metal film.

The injection seat 8 to which the injector 1 is attached is to be attached to the concrete surface of the cracked part of the concrete where the adhesive a is to be injected, and has an attachment part 9 to be attached to the concrete surface, and an attachment part 9 on the opposite side 11 to the attachment surface 10. 9 has a female thread 8a and an injection pipe 1 in the center thereof.
2 is bored, and this injection pipe 12 is connected to the spout 5.
When the bellows 3 is attached to the injection seat 8, the adhesive a breaks through the sealing film 7 and flows out from inside the bellows 3. A tapered hole 13 whose diameter becomes smaller toward the distal end is bored in the injection tube 12, and the outer shape of the injection tube 12 is formed, for example, in a two-stage shape, and when the viscosity of the adhesive a is high, the taper hole 13 becomes smaller in diameter. The portion 14 can be broken off. If the tapered hole 13 is broken off from the stepped portion 14, the diameter of the tapered hole 13 becomes larger, and even the highly viscous adhesive a can be extruded and injected with less resistance.

Also, the outside of the injection tube 12 is tapered and the adhesive a
Since the injection tube 12 is made of plastic and is removable, if the injection tube 12 is made of plastic and can be cut out, the adhesive can be removed by cutting it out according to the scale or markings 15. It can accurately correspond to the viscosity of a. The distal end of the injection tube 12 can be replaced with one having a different hole diameter by means of a screw to accommodate different viscosity.

On the opposing inner sides of the pressing piece 16, the portions that fit into the concave portions 2 at both ends of the bellows 3 form convex portions 16a that fit and engage with the concave shapes, and on the opposite outside, a spring insertion portion 17 is provided. An arc-shaped pressing spring 18 that acts in the direction in which the pressing piece 16 approaches is fitted into this insertion portion 17 and pressed, thereby contracting the bellows 3 and pouring the adhesive a inside the bellows 3 from inside the bellows 3. Through the outlet 5 and injection pipe 12, squeezing force is applied toward the concrete crack. When the concave portion 2 of the bellows is pressed with the pressing piece 16 to the extent that the bottom of the concave portion 2 touches, the amount of adhesive remaining in the bellows can be reduced to about several cc. When pressing, the pressing spring 18 can be replaced or the strength of the spring can be changed depending on the viscosity of the injected resin.

Function When using the clip grout injector of the present invention, check for cracks in the concrete of the building structure, clean the base, and check the cracked parts except for the place where the injection seat 8 is installed. stop it. After that, the injection seat 8 is glued to the required location, and when the injection seat 8 is fixed, the thickness of the injection tube 12 is adjusted to suit the viscosity of the resin of adhesive a, and if necessary, a part of the injection tube 12 is cut out or Break off, female thread 8a of injection seat 8
At the same time, the male screw 5a of the spout 5 is screwed on, and the sealing film 7 of the blind lid 6 is broken through with the injection tube 12, and the syringe 1 is firmly attached so that the resin does not leak. After that, each end of the pressing spring 18 corresponding to the viscosity of the adhesive is inserted into the spring insertion part 17 of the pressing piece 16, and the convex part 16a of the pressing piece 16 is attached to the concave part 2 at both ends of the bellows 3. . The epoxy resin adhesive a is extruded from the spout of the bellows 3 by the force of the pressing spring 18, and the adhesive a permeates through the tapered hole 13 of the injection pipe 12 into the cracks in the concrete of the building structure. When the bellows 3 is compressed, the convex portion 16a of the pressing piece 16 hits the bottom of the concave portion 2, and most of the adhesive in the middle portion is also pushed out.

After this injection is completed, the adhesive is cured while waiting for it to harden. Once the curing is complete, finishing will be done and the construction will be completed.

The epoxy resin used in this case is for high viscosity.
1000-8000cps are used, usually 5000cps
For low viscosity, 1000 cps or less is used, usually 700 to 800 cps. After curing for 3 weeks, the crack model used in the experiment was cut and the infiltration situation was investigated. There was no leakage and the degree of encapsulation was good.

Second Embodiment Next, in another embodiment of the syringe 1, the same parts will be given the same reference numerals, the explanation will be omitted, and the different parts will be explained.

Instead of the bellows 3, the container is made of a deformable material such as polyethylene and is formed into a spherical shape 3', and the middle part 2
is provided with a spout 5 into which a blind lid 6 is fitted, and an engaging protrusion 3' is provided on a diametrical line symmetrical to the spout.
a, 3'a are provided. And the pressing piece 16
Holes 16b, 16b into which the engaging protrusions 3'a, 3'a are inserted are provided at the centers of opposing surfaces of the protrusions 16a, 16a, respectively.

Function To use this clip grout syringe, fill the spherical shape 3' with adhesive resin of a predetermined viscosity and seal it with the blind lid 6, and screw it into the injection seat 8 glued to the crack surface. At the same time, the sealing film 7 is firmly attached to prevent the resin from leaking. Then, the pressing piece 16, which has a pressing spring 18 of a predetermined strength inserted into the spring insertion part 17, is brought into contact with the spherical shape 3' from both sides to engage the engaging protrusion 3'.
Insert a and 3'a into the holes 16b and 16b, respectively. Due to the force of the pressing spring 18, the spherical shape 3' is gradually crushed like crushing a ball, and the convex shape 1 of the pressing piece 16 is
Most of the adhesive in the midsection is also pushed out by 6a and 16a.

Effects The clip grout syringe of the present invention has a tapered hole provided in the center of the injection seat, and the inner diameter of the injection tube can be adjusted according to the viscosity of the adhesive, and the pressure of the pressure spring can also be adjusted. The pressure piece allows the container to be compressed to the extent that both sides touch, reducing the internal volume at the time of maximum contraction.For example, the amount of adhesive remaining on a container with a volume of about 46 c.c. is about the same as that of 3.35 cc. The amount is extremely small compared to commercially available products, and the injection hole and extrusion pressure match the resin viscosity to match the width of the crack, making it possible to fill the crack without voids.
In addition, the syringes used in large quantities can be disposed of as plastic waste all at once without the need for time and effort, and the cost of disposable parts can be reduced. Furthermore, since the pressing pieces are sandwiched and engaged from both sides of the container, the pressing pieces do not fall off and are easy to handle on site.This invention has many advantages, such as being easy to handle on site.The present invention will greatly contribute to the development of the industry. There is something.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the clip grout syringe of the present invention, with the blind lid and injection seat separated, and FIG. 2 is a view showing another embodiment of the syringe. 1...Syringe, 2...Concave portion of bellows, 3...
...bellows, 3'...spherical, 3a...engaging protrusion,
4...Midway, 5...Spout spout, 6...Blind lid, 7...
Sealing film, 8... Injection seat, 9... Mounting part, 12...
Injection pipe, 13...Tapered hole, 14...Stepped portion, 1
5... Scale, mark, 16... Pressing piece, 17... Spring insertion part, 18... Pressing spring, a... Adhesive.

Claims (1)

[Claims for Utility Model Registration] (1) An adhesive injector with a deformable container having engaging parts on both sides is provided with a spout in the middle thereof into which a blind lid having a punctureable sealing film is fitted. The pouring seat has a mounting part for attaching the pouring spout and attaching the injector to the supporting concrete crack surface during use, and an injection pipe that penetrates the sealing film is provided in the center of the mounting part on the side opposite to the mounting surface. , characterized in that each of the pressing pieces fitted into the engaging parts on both sides of the deformable container is provided with a mounting part for attaching an elastic member that acts in a direction in which the pressing pieces approach to push out the adhesive. A syringe for clip grouting. (2) The clip grout syringe according to claim 1, wherein the injection pipe is formed in a two-stage shape so that it can be broken off from the stepped part when the viscosity of the adhesive is high. (3) The clip grout injector according to claim 1, wherein the hole in the injection pipe is a tapered hole, and a mark indicating the hole diameter position corresponding to the viscosity of the adhesive is attached on the outside of the hole. (4) The clip grout syringe according to claim 1, wherein the injection pipe has a threaded tip so that it can be replaced with one having a different hole diameter. (5) The clip grout syringe according to claim 1, wherein the punctureable sealing film is a plastic film. (6) The clip grout syringe according to claim 1, wherein the punctureable sealing film is a metal film.