JPH01258767A - Method and device for underwater coating or crack filling - Google Patents

Abstract

PURPOSE:To easily perform underwater coating by fitting a nozzle to the outlet of a watertight vessel contg. underwater paint and by pressing the paint out of the vessel by a diver under water to coat an object. CONSTITUTION:Underwater paint or an underwater crack filler is charged into a flexible watertight vessel 1 made of plastics, etc. One end of the vessel 1 is a charge inlet 2 sealable with a zipper or the like and a nozzle 4 is fitted to the outlet 3 of the vessel 1. The vessel 1 contg. the paint or filler is brought to an object by a diver under water and the paint or filler is pressed out of the nozzle 4 of the vessel 1 to coat the object or to fill the cracks in the object. Thus, coating or crack filling work can easily be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to improvements in a method and apparatus for underwater painting or underwater crack injection of concrete structures, steel structures, etc.

(0) Conventional technology Underwater painting paints or injectants injected for crack repair in concrete structures, etc. are two-component underwater curing paints or injectants that contain epoxy resin as their main component and are extremely adhesive. is good. On the other hand, it easily gets on clothes and skin and gets dirty easily.

2) Since it is an α-mixing type, once it is mixed, it must be completely used up, and the viscosity is extremely high.

Traditionally, this two-dip type paint or filler (hereinafter referred to as paint, etc.) is mixed on land, the paint is placed in a container such as a bucket, and a diver uses a brush or spatula to paint or inject cracks underwater. Ta. (See Fig. 4) Alternatively, as shown in Fig. 5, the two heated paints, etc., are pumped to the object underwater, or as shown in Fig. 6, each liquid is pumped from land using two hoses. There was a method of pressure feeding and using a static mixer at the tip.

(c) Problems to be solved by the invention Underwater paints have a specific gravity of about 1.5, which means they are heavier than water and can be placed in a container such as a bucket for painting, etc.
The buoyancy of water is added, and when moving underwater, the external force of the water is also added, so it is much more likely to spill than in the air, and it will get on your clothes and skin! ! (It gets dirty easily after wearing it once, and there is a lot of waste.

In addition, when pumping paint or the like that has heated two liquids from land, high pressure is required due to the high viscosity, and the length of the hose cannot be increased. Furthermore, once fully cured, epoxy resin cannot be easily dissolved in solvents, so the resin in the hose is wasted after use, and cleaning is very time-consuming.

In addition, when using two hoses and a static mixer at the end as shown in Figure 6, the two hoses are heavy, making it difficult to work underwater, and a long hose is required if the distance is far. Due to its high viscosity, it cannot be pumped.

(D) Means for Solving the Problems The present invention involves mixing two-residue type paint, etc. on land, placing it in a watertight container, equipping the outlet of the container with a nozzle, bringing the container close to an object in the water, and placing it in a watertight container. This is an underwater painting or underwater crack injection method and apparatus in which a diver has a means for pushing out paint, etc. in a container, and the diver pushes out the paint, etc. underwater to paint an object or inject it into a crack.

(1) The diver brought a container filled with paint, etc. underwater near the object and operated it to push the paint, etc. out of the nozzle of the container, causing the object to be painted or cracked. Crack injection work can be done easily.

b) The embodiment is a flexible container bag made of plastic or the like, and the negative end has an opening (2) for storing paint, etc., and can be sealed with a zipper or the like. The other end gradually becomes thinner and pipe-shaped to make it easier to bulge out, and becomes the outlet (3).

A nozzle (4) is removably secured to the outlet (3). The nozzle (4) has a flat frontage so that it can paint over a wide area. The nozzle shape may be selected according to the work, and may be one with small holes.

FIG. 2 is an overall view showing another embodiment of the present invention, in which (5) is a pressure vessel, which is suspended in water near an object by a floating body (6), and paint, etc. (7) is placed in the vessel; An air hose (9) from a land-based air compressor (8) is connected to the top of the container (1). The lower part of the container (2) has a conical shape, and a cock (10) is connected to the lower end of the cock (10), and a flexible hose is connected to the distal end of the cock (+1) having a nozzle.

FIG. 3 is a detailed view of the container (5). (12) is a one-touch wide-mouth cap, and (13) is a rubber ball floating in paint, etc., which blocks the outlet and functions as a stop valve when paint, etc. is discharged.

(g) Effects Because of the structure described above, divers can freely and easily bring containers containing paint, etc., close to the object to be painted, etc., and in the case of plastic containers, divers can use their hands. By applying pressure from the outside, or in the case of the containers shown in Figures 2 and 3, the diver can easily discharge paint etc. from the nozzle and perform painting or crack injection work by operating the cock <lO>. There is almost no discharge pipe or it can be made short, maintenance is easy, there is little waste of paint, etc., the plastic container can be disposable, and maintenance and inspection of the device is easy. Additionally, paint is less likely to spill and stain clothing or skin. As described above, the present invention provides an easy-to-use underwater coating or crack injection device that is easy to maintain and inspect.

[Brief explanation of the drawing]

Fig. 2 is an overall view using a container according to another embodiment of the present invention, Fig. 3 is a view showing details of the container (5) in Fig. 2, and Fig. 4 is a diagram showing a conventional container such as a bucket. Figure 5 shows an example in which paint, etc. mixed from a conventional land-based pressure feeder is guided to an underwater object using a hose, and Figure 6 shows a conventional example in which each mixing liquid is conveyed from land using two hoses. This device uses a static mixer at the tip to mix and paint. (+)...Flexible container, (2)...Inlet, (3)...Outlet, (4)...Nozzle, (G)...・Container, (6)... Floating body, (7)...
...paint, etc., (9) ...air hose, (10)
...cock, (11) ...discharge pipe. Ai I Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1) A watertight container containing an underwater paint or an underwater crack injection agent, and a nozzle at the outlet of the container, and means for a diver to push out the paint or injection agent in the container underwater; Underwater painting or underwater crack injection method in which paint or filler is extruded and painted or injected onto the object. 2) A watertight container containing an underwater paint or an underwater crack injection agent and a nozzle at the outlet of the container, and a means for a diver to push out the paint or injection agent in the container underwater, so that a diver can apply the paint or injection agent underwater. An underwater painting or crack injection device designed to paint or inject cracks into the object to be extruded. 3) The underwater coating or underwater crack injection device according to claim 2, wherein the container is a flexible container, and a diver presses the container underwater to extrude and paint or inject the paint or injection agent. 4) The underwater container according to claim 2, wherein an air hose for supplying compressed air from land to press the paint or injection agent inside is connected to the upper part of the container, and a discharge pipe having a cock and a nozzle is attached to the outlet at the lower part. Paint or underwater crack injection equipment.