JPH06185230A - Water jet-scraping car - Google Patents

Abstract

PURPOSE:To effectively and precisely wash and scrape a wall without impairing the peripheral enviponment, by injecting a high pressure water from jet nozzles arranged to be rotatable in a casing fitted on a lifter to be inclined. CONSTITUTION:A water-supply car 23, a high pressure water generator car 22, a scraping washing car 1, and a waste water vacuum collecting car 20 are transferred to the site. Next, the scraping width is set by adjusting the angle against the progressing direction of the casing 4 of the scraping and washing car 1. A base lifter 3 is raised up to a specified height and the respective length of a plurality of support legs 5, 5 are adjusted and the slant of the casing 4 is made parallel with that of the concrete wall 21 to press the opening 11 of the casing 4 to the concrete wall 21. Then a hydraulic motors 13, 13 are driven to rotate injecting nozzles 9 and jet the high pressure water from the front opening to wash a specified wall. The washed water drain are collected to the casing 4 and recovered from the outlet 18 at the bottom into the vacuum car through vacuum hoses 19, 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vehicle for washing concrete structure walls of tunnels and subways, ceiling walls of buildings, etc. with high-pressure water or for shaving surface layers.

[0002]

2. Description of the Related Art Conventional washing and shaving work on concrete walls of tunnels and subways is performed by an operator who rides on an elevating work platform mounted on a vehicle body and manually operates an elongated high-pressure water jet nozzle to apply high-pressure water to the wall surface. I was working by ejecting it. However, with this conventional work method, it is not easy to operate the slender high-pressure water jet nozzle at a high place, and the sprinkling water / fog droplets / steam / spraying debris on the concrete wall of the fountain Since the work is performed in flowing water, the work is performed in an extremely bad working environment, and the workability is poor and the work cannot be performed accurately.

[0003]

DISCLOSURE OF THE INVENTION The present invention solves these problems of the prior art, and makes it possible to perform a cleaning / shaving operation unattended, and to reduce the pollution of the outer environment, and to provide a cleaning / shaving vehicle with good workability. To provide.

[0004]

Means for Solving the Problems The gist of the present invention, which has solved the above problems, is as follows: 1) A casing having an open upper surface is tiltably attached to a lifting platform mounted on a vehicle body, and a high-pressure water fountain nozzle is installed in the casing. A scrubbing work vehicle characterized by being rotatably mounted and having a drain port connected to a drain hose on the bottom surface of the casing 2) There is a pair of fountain nozzles in the casing, and the casing is rotatably mounted. It is located in the cleaning work vehicle.

[0005]

In the present invention, the casing is brought into close contact with the surface of the wall surface to be worked by moving to the work site by car, and then raising and lowering and tilting the lifting table. Next, while the fountain nozzle is rotated in this casing, high-pressure water is jetted from the nozzle opening to scrape or wash the wall surface with the high-pressure fountain. By moving the car in this state, it is possible to scrape and wash the wall surface into strips.
Splashing water on the wall surface of high pressure fountain, accompanying steam, flakes,
Water droplets and the like are contained in the casing and discharged from the drain port, so that the outer environment is not polluted. If the casing is rotatable and a pair of fountain nozzles are provided, the width 1 of the strip to be scraped and washed can be changed by adjusting the inclination of the casing with respect to the traveling of the vehicle.

[0006]

EXAMPLES Hereinafter, examples will be described based on the present invention.
The present embodiment is an example of a shaving work vehicle that grinds the surface of a concrete wall of a tunnel or subway by 10 to 15 mm in order to repair the deteriorated surface. 1 is a side view of the embodiment, FIG. 2 is a rear view of the embodiment, FIG. 3 is an enlarged side view showing a main part of the embodiment, FIG. 4 is an explanatory view showing a rotating mechanism of a fountain nozzle, and FIG. FIG. 7 is a plan view, FIG. 6 is an explanatory diagram showing a tunnel shaving work state, and FIG. 7 is an explanatory diagram showing a relationship between the rotation of the casing and the shaving width.

In the figure, 1 is a shaving work vehicle of this embodiment, 2 is a vehicle body, 3 is a hydraulically operated lift, 4 is a box-shaped casing,
Reference numeral 5 denotes an extendable support leg for supporting the casing, a hollow pipe pin-connected to the arm 6 of the casing 4, a screw rod inserted into the hollow pipe and having a lower end attached to the rotary table 7, and the screw. It consists of a height adjustment handle that is screwed to the rod and is rotatably attached to the lower end of the hollow pipe. 6 is an arm connecting the support leg and the casing 4, 7 is a rotary table having the support leg 5 standing upright, 8 is a rotary shaft of the rotary table, 9 is a fountain nozzle, and 10 is the fountain nozzle. , Rotary shaft with high pressure water passage inside,
Reference numeral 11 is an opening of the casing 4, 12 is a free wheel attached to the casing 4, 13 is a hydraulic motor for rotating the fountain nozzle 9, and 14 is a driving force of the hydraulic motor.
Gears that transmit power to the rotary shaft 10, swivels that feed high-pressure water to the rotary shaft 10, 16 high-pressure water hoses, 17 hydraulic hoses, 1
Reference numeral 8 is a drainage port provided on the bottom surface of the casing 4, 19 is a drainage hose, 20 is a drainage recovery vacuum truck, 21 is a concrete wall of a tunnel, 22 is a high-pressure water generation truck, and 23 is a water truck.

In this embodiment, as shown in FIG. 6, a water supply truck 22, a high-pressure water generation vehicle 21, a shaving work vehicle 1 of this embodiment,
The waste water recovery vacuum vehicle 19 is moved to the site, the rotary table 7 of the shaving work vehicle 1 is rotated, the angle with respect to the progress of the casing 4 is adjusted, and the shaving width 1 is made appropriate. Next, the height of the lifting platform 3 is adjusted to the required height, the lengths of the plurality of support legs 5 are adjusted to the required length by rotating the adjustment handles, and the inclination of the casing 4 is adjusted to the surface of the concrete wall 21. The opening 11 of the casing 4 and the concrete wall 21 in parallel with each other, and in this state
Press casing 4 onto 1. After that, the hydraulic motor 1
When 3 is operated, the driving force rotates the rotating shaft 10 via the meshed gear 14, and the fountain nozzle 9 rotates.
The high-pressure water is generated by the high-pressure water generation vehicle 22, and the high-pressure water hose 16
Through the swivel 15 and the rotary shaft 10 and is jetted at a right angle toward the concrete wall 21 from the tip opening of the fountain nozzle 9, which rotates, and scrapes the deteriorated portion of the surface of the concrete wall 21 by about 10 to 15 mm. The fountain nozzle 9 has a rotating shaft 10
Since it is rotating around, cut it into a ring. When the shaving work vehicle 1 travels slowly in this state, the fountain nozzle 9 hangs within the width of its rotation diameter (see FIG. 7). Moreover, if the casing 4 to which the pair of fountain nozzles 9 are attached is inclined with respect to the progress, the width of the two fountain nozzles 9 can be adjusted to a large extent.

The high-pressure water in the casing 4 scatters on the concrete wall and is scattered / reflected in the form of water flow, water droplets, steam, and mist, but it is contained in the casing 4 and water / steam / water droplets are discharged from the drain port 18. The fog is vacuumed and the drain hose 19
The waste water is collected in the waste water collection vacuum vehicle 20 via the. When performing shaving work at different points on the concrete wall 21 of the tunnel, the height of the casing 4 and the inclination of the opening 11 can be adjusted by adjusting the height of the lifting platform 3 and the length of the support legs 5. Work in the same manner as described above according to the surface of.

[0010]

As described above, according to the present invention, the vertical height and the inclination of the casing provided inside the fountain nozzle are adjusted according to the inclination of the work wall surface, and the casing is pressed against the work wall surface and brought into close contact with the work wall surface. Since high-pressure water is ejected from the fountain nozzle to shave and wash the wall surface, high-pressure water splashes, water droplets, fog, and shavings are enclosed in the casing and work can be performed without polluting the outer environment. High-pressure water can be jetted unattended, and there is no need for workers to approach the wall surface.
The work burden on the operator is greatly reduced, and the work can be performed efficiently and accurately.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is a rear view of the embodiment.

FIG. 3 is an enlarged side view showing a main part of the embodiment.

FIG. 4 is an explanatory view showing a rotation mechanism of the fountain nozzle of the embodiment.

FIG. 5 is a plan view of the casing of the embodiment.

FIG. 6 is an explanatory view showing a tunnel shaving work state of the embodiment.

FIG. 7 is an explanatory diagram showing the relationship between the rotation of the casing and the cutting width of the example.

[Explanation of symbols]

 1 Shaving work vehicle 2 Vehicle body 3 Lifting table 4 Casing 5 Support leg 6 Arm 7 Rotary table 8 Rotating shaft 9 Fountain nozzle 10 Rotating shaft 11 Opening 12 Flexible wheel 13 Hydraulic motor 14 Gear 15 Swivel 16 High pressure water hose 17 Hydraulic hose 18 Drainage Mouth 19 Drain hose 20 Drain collection vacuum vehicle 21 Concrete wall 22 High pressure water generation vehicle 23 Water truck

Claims (2)

[Claims] 1. A casing having an open upper surface is tiltably mounted on a lifting table mounted on a vehicle body, a fountain nozzle for high-pressure water is rotatably mounted in the casing, and a drain port connected to a drain hose is provided on the bottom surface of the casing. Cleaning work vehicle characterized by the provision of a. 2. There is a pair of fountain nozzles in the casing,
Moreover, the cleaning work vehicle according to claim 1, wherein the casing is rotatably mounted.