JPH0316885Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is a device that is equipped with a conduit cleaning mechanism in a mechanical device that sprays a liquid for repairing or restoring road surfaces or the like.

(Prior Art) When paving for the purpose of repairing or restoring roads, prior to filling with asphalt, pretreatment is performed using an asphalt emulsion for prime coat, tack coat, etc. so that asphalt will effectively adhere. In such cases, it has traditionally been common to use buckets and brushes, but to be on the safe side, the use of spraying equipment is becoming mandatory. However, using large equipment is wasteful and does not work well, so the applicant devised a sprayer that met the above purpose.
I applied.

(Technical Problem) The present invention was made to prevent the liquid from solidifying after using the liquid sprayer as described above.The problem is to prevent the liquid from solidifying after using the liquid sprayer. The purpose is to make it possible to clean the roads.

(Technical Means) In order to achieve the above-mentioned problem, the present invention has a container body 2 which has a bottom portion 23 that curves downward in a protruding shape, can store liquid therein, and has pressure resistance, and an air container attached to the body. A supply source 1, an air pipe 3 for pressure-feeding air from the supply source to the upper part of the main body, and a bottom part 23 provided in order to discharge the liquid stored in the main body to the outside by the air pressure. A discharge port plug 14 that can be opened and closed communicates with the air piping 3 and the discharge port plug 14 via first and second switching valves 4 and 10, and a second
It is said to consist of a cleaning liquid tank 5 and a cleaning pipe line 9, which force-feed the cleaning liquid to the discharge port plug 14 through a switching valve 10, and a spray pipe line 8 connected to the discharge port plug 14 and having a spray nozzle 7 at its tip. The measures were taken.

(Function) The liquid sprayer according to this invention can spray the spraying liquid stored in the main body 2 of the pressure-resistant container from the nozzle 7 of the spraying pipe line 8 using compressed air supplied from the air supply source 1 through the air pipe 3. However, if asphalt emulsion is left undisturbed after being sprayed, it will adhere to pipes and nozzles and harden.
Since the emulsion is always in contact with the emulsion, the stopper will not become clogged unless all of the emulsion solidifies.
Even if the amount of liquid decreases, it can be smoothly discharged. The air pipe 3 also communicates with a cleaning liquid tank 5 through a first switching valve 4 interposed in the middle, and the cleaning liquid is supplied through a pipe line 9 through a discharge port plug 14 to a pipe line 8 and a nozzle 7 of the spraying system. can be washed.

(Example) To explain with the illustrated example, a hand-held bicycle air pump is attached to the side surface of a pressure-resistant container body 2 as an air supply source 1 with a fixture 11, and the air piping 3 on the discharge side is attached to the top surface of the body. Pressure inlet 1 provided
2 firmly and removably connected. Therefore, it is also possible to connect to an air compressor or compressed air cylinder powered by an on-board battery. In addition, use an air pump that comes with an air reservoir 1a, and since it is necessary to obtain compressed air of approximately 1 to 6 kg/ ^cm2 , use a high-pressure hose for the piping hose, and use an air pump to control the internal pressure of the main unit. This is indicated by the sear gauge 13.

The air piping 3 is provided with a first switching valve 4 in the middle, and the piping 6 from the port communicates with the cleaning liquid tank 5, and the compressed air supply destination can be switched between the main body 1 and the liquid tank 5 by operating the valve. It's becoming like that. The spray liquid stored in the main body is sprayed from the spray nozzle 7 through the spray pipe 8 from the bottom discharge port plug 14 of the main body 1. They are connected via a valve 10. 15
17 is the opening/closing valve provided in the discharge pipe 16, and the cleaning liquid tank 5.
18 is the injection lid of the main body 2, 19 is a member for attaching the cleaning liquid tank 5 to the main body 2, 20 is a wheel, 21
indicates a support, and 22 indicates a handle. Note that the bottom portion 23 of the main body 2 is formed in a concave shape, and the main purpose of this is to facilitate the supply of liquid to the discharge port plug 14 and to heat the sprayed liquid with a torch.

(Effects) Since the present invention is constructed and operates as described above, by using the air supply source 1 that can be found anywhere, such as a hand pump for bicycles, it is very easy to spray liquid into a relatively narrow area. It can be done economically, and at the same time, after the liquid spraying work is completed, by operating the first and second switching valves 4, 10 and, if necessary, the discharge port plug 14, the cleaning liquid is passed through the spraying pipe 8 and discharged from the nozzle 7. Therefore, even if the spraying liquid tends to harden or solidify, the remaining spraying liquid components in the pipes can be removed by cleaning or dissolving them with solvent, cleaning oil, detergent, or other cleaning liquid immediately after the spraying operation is completed. The main body connection part of the conduit has a discharge port plug 14 at the bottom part 23 which is curved in a downward protruding shape.
It has a remarkable practical effect because it communicates over an extremely short distance, and because it is located at the bottom, it is easy to guide the cleaning liquid, allowing for effective cleaning without clogging the pipes. be.

[Brief explanation of drawings]

The drawings show a liquid sprayer for repairing road surfaces, etc. according to the present invention, and FIG. 1 is a perspective view of the embodiment, and FIG. 2 is a side view. 1... Air supply source, 2... Pressurized air body,
3, 6... Piping, 4... First switching valve, 5... Cleaning liquid layer, 7... Nozzle, 8, 9... Piping, 10...
Second switching valve, 14...discharge port plug, 23...bottom.

Claims (1)

[Claims for Utility Model Registration] (1) A container body 2 having a bottom portion 23 that curves downward in a protruding shape, capable of storing liquid inside and having pressure resistance, and an air supply source 1 attached to the body. , an air pipe 3 for pressure-feeding air from the supply source to the upper part of the main body, and an openable and closable air pipe 3 provided in the bottom part 23 for discharging the liquid stored in the main body to the outside by the air pressure. Discharge port plug 1
4 communicates with the air pipe 3 and the discharge port plug 14 via first and second switching valves 4 and 10, and the discharge port plug 14 is connected to the air pipe 3 and the discharge port plug 14 through the second switching valve 10 by air pressure from the air supply source 1. Force the cleaning liquid to
A liquid sprayer with a cleaning function, comprising a cleaning liquid tank 5, a cleaning pipe line 9, and a spraying pipe line 8 connected to the discharge port plug 14 and having a spray nozzle 7 at its tip. (2) The liquid sprayer with a cleaning mechanism according to claim 1, wherein the air supply source 1 is a hand-operated bicycle air pump. (3) A liquid sprayer with a cleaning mechanism according to claim 1, which is a utility model and is provided with a second switching valve 10 at the connection between the spraying pipe 8 and the cleaning pipe 9.