JPS5854616B2 - Two-component filling gun - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a two-component adhesive filler used in the injection method for repairing and strengthening cracks in concrete structures and floating parts of mortar, tiles, etc. It concerns a filling gun.

Traditionally, when repairing cracks in concrete structures or floating parts of mortar or tiles, etc., it was necessary to remove the whole part and then re-cover it with new concrete, mortar, tiles, etc., but recently, strong and durable With the development of a certain adhesive, a method has become available that allows for easy repair by filling cracks and floating areas with it.
Tools for filling repaired areas with these adhesives have not yet been developed, and conventional tools such as grease guns that can fill narrow areas with high-viscosity adhesives are being used. This tool is not designed to be suitable for this method, but is made to store and dispense a single liquid, so if you want to use it for something like a two-part adhesive, you need to mix the two parts in advance. It had to be a single liquid, and it had to be stored and discharged.

However, when you mix the two components of a two-component adhesive, the main component and the curing agent, it begins to harden immediately, and depending on the type of adhesive, the usable time is very short, and it hardens in the gun during work, making it difficult to use. It is not possible to mix and prepare a large amount of adhesive at once, and the work must be frequently interrupted to prepare the adhesive, resulting in a decrease in work efficiency.

Also, after use, it is almost impossible to disassemble and clean this gun, and only simple cleaning is possible - the adhesive hardened and adhered when used on the second floor, making it impossible to reuse, so it had to be discarded. This was extremely uneconomical and led to an increase in construction costs.

The present invention was made in view of these points, and the main agent and curing agent of a two-component adhesive are stored separately and mixed at the discharge nozzle to fill the repaired area. Easy to put on and take off, cleaning after use,
It is designed to be easily replaceable or disposable.

To explain an embodiment of the present invention based on the drawings, the main body 1 has two cylinders 2, 2' for liquid A, liquid B, etc. in parallel.
are formed integrally, and a plunger 3, 3' that can slide in a liquid-tight manner is inserted into each, with the rear end protruding from the cylinder 2, 2', and the two plungers 3, 3' are mutually moved so that they move simultaneously. The ends of the cylinders 2, 2', which are connected by pins 4, etc., are provided with separate discharge holes 5,
5' is formed.

Support columns 6, 6' are placed above and below these cylinders 2, 2'.
are provided, and one end of each of the protruding arms 8, 8' of the cylinder receivers 1, 7' is rotatably supported by shafts 9, 9' on the support columns 6, 6', and the protruding arms 8, 8' are Links io, io' rotatably attached to the other end and the plungers 3, 3
' is rotatably connected to the connecting pin 4, and the protruding arm 8
, 8' are formed with cylinder receiving lids 11 and 11', and storage cylinders 1 for A liquid, B liquid, etc. are formed on these cylinder receiving lids 11 and 11', respectively.
2, 12' are removably fixed.

In addition, inside these storage cylinders 12, 12', there are pistons 13, 13' that slide fluid-tightly with gaskets, etc., springs 14, 14' that press these pistons 13, 13', and a handle at the rear end. , piston 13 only when pulled.
13' and springs 14, 14', and a piston rod 15 formed so as not to engage when pressed.
, 15' are provided.

Furthermore, a flow path is provided between each of the cylinders 2, 2' and the cylinder receivers 7, 7' by means of hoses 16, 16', etc., so that the contents of the storage cylinders 12, 12' can flow.

Then, a nozzle 18 integrated with the mixing section 11 is removably inserted into the discharge holes 5, 5' of the cylinders 2, 2'.

The two liquids A and B are formed so as to come into contact for the first time in this mixing section 1T, and a generally known static mixer or the like is used for the mixing section 17.

Next, this operation will be explained. First, the storage tube 12 is removed from the tube receiving lid 11, and the main agent, curing agent, etc. are loaded into each tube.

In other words, there are two methods: inserting a cartridge or packed product into the storage tube 12 by pulling the piston rod 15 so that the piston 13 is retracted deep into the storage tube 12; After the piston rod 15 is inserted and the piston rod 15 is pulled to suck it into the storage cylinder 12, the storage cylinder 12 is attached and fixed to the cylinder receiving cover 12, and the piston rod 14 is pushed into the storage cylinder 12.

Then, the main agent or hardening agent in the storage tube 12 is released into the spring 1.
4 is sent to the cylinder 2 through the hose 16.

Here, when holding both the storage tubes 12A and 12B with both hands and operating them to open and close each other using the shaft 9 as a fulcrum, the link 10
Both plungers 3 connected to the cylinder 2 reciprocate within the cylinder 2.

Then, when the plunger 3 retreats from the cylinder 2, the pressure inside the cylinder 2 decreases due to the action of the check valve.

At this time, since it communicates with the storage cylinder 12, the contents inside the storage cylinder 12 are transferred to the cylinder 2 with the help of the spring 14, etc.
When the plunger 3 moves forward, the check valve is pushed open and the two liquids are simultaneously pushed out through the discharge hole 5 into the mixing section 17, mixed in the mixing section 1γ, and then discharged through the nozzle 18 to the repaired area. be done.

Here, if the diameters of both plungers 3 and 3' are the same, it will be 1:1.
If the diameter is set to 1:2, the mixing ratio becomes 1:2, and so on.

In addition, if the storage tube 12 is made of Shumei material, the remaining amount can be seen at a glance, and if an injection device such as a grease nipple is attached to the tube holder T, the storage tube 12 can be used without removing it from the tube holder 7. It is also possible to inject the main agent, curing agent, etc. using a pump, etc.

Since the present invention is configured as described above, the main agent, curing agent, etc. are stored separately and mixed immediately before discharge, and then discharged.
This mixing part and the discharge nozzle are configured to be detachable from the main body, so even if the adhesive hardens, by replacing only this mixture and the discharge nozzle, the others can be reused even if they are fine. Since it does not harden and become unusable, it is extremely useful in improving work efficiency and reducing construction costs.

[Brief explanation of drawings]

FIG. 1 is a side view of the upper part of the present invention with the mixing nozzle section omitted, FIG. 2 is a front view with the mixing nozzle section omitted, and FIG. 3 is a sectional view of the mixing nozzle section. 1...Body, 2...Cylinder, 3...
...Plunger, 4...Shaft, 5...
・Discharge hole, 6... Support column, 7... Tube receiver, 10... Link, 12... Storage tube, 13... - Piston, 14...Spring, 16...Hose, 17...Mixing part, 18...Nozzle.

Claims (1)

[Claims] 1. Two cylinders are formed in the main body, a plunger that slides liquid-tightly is inserted into each cylinder so that the rear end protrudes from the cylinder, and support columns are provided projecting above and below the cylinders of the main body, and this A cylindrical body is rotatably supported on a support column, and the other end of the link whose one end is rotatably supported on each cylindrical body and the rear ends of the two plungers are connected to a single shaft. a hose that is rotatably supported on a shaft, and a storage cylinder having a built-in piston pressed by a spring is removably attached to each of the cylinder tube bodies, and each of the storage cylinders and the two cylinders are communicated with each other; is provided between the cylindrical pipe body and each cylinder, and a mixing part having a nozzle at the tip is detachably attached to the discharge hole of the cylinder via each check valve. filling gun.