JPH0360964B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a repair method for snow removal nozzles buried in paved surfaces such as paved roads.

[Conventional technology]

Previously, as a repair method for this type of snow removal nozzle, there was no known method of completely replacing the old snow removal nozzle by scraping the buried concrete on the snow removal nozzle, removing the entire old snow removal nozzle, installing a new snow removal nozzle in its place, and fixing the surrounding area with concrete. It is being

[Problem to be solved by the invention]

The total replacement method described in the above-mentioned conventional technology causes large noise and vibration when breaking the concrete, requires a long curing time for the concrete to harden, and also requires traffic control during curing. In particular, repairs carried out in winter are not only inconvenient because concrete is difficult to solidify in cold temperatures, but also the curing time and traffic control time are extended, and due to snow on the roadside, the road width will be stretched for a long time during construction. There were deficiencies such as the fact that the area was narrow and the level of danger was high.

An object of the present invention is to provide a method for repairing a snow removal nozzle that fully eliminates the above-mentioned defects.

[Means to solve the problem]

In order to achieve the above object, the repair method for the snow removal nozzle of the present invention includes the steps of cutting the center part of the top wall of the nozzle body of the existing snow removal nozzle into a circle using an end mill, and cutting the area surrounded by the circular cutting. and a process of removing built-in items such as old valves, a boring process and a tap hole cutting process to fit the new built-in items such as valves, which are carried out in the space created by the removal, and a process of removing built-in items such as new valves in the space. This process includes a step of loading the material into a suitable state using the tapped holes described above, and a finishing step of cutting it to the same height as the road surface.

[Embodiments] and [Operations] Next, embodiments of the present invention will be described with reference to the drawings.First, the two front corners and the rear of the magnetic metal plate base plate 1 with the hand handle 1' will be described. A screw hole (not shown) is provided in the center that passes through the top and bottom, and the landing leg screw rod 2 is inserted into both the front screw holes and the rear screw hole.
2' and 3 are screwed in with their upper and lower ends protruding both above and below the base plate 1, and a handle 4 is detachably attached to the upper ends of these landing leg threaded rods 2, 2', 3. Conveyance floats 5 on both sides of the rear edge of the base 1,
5' constitutes a frame 6, and is equipped with a saddle 9 with a locking screw 8 so as to be movable in the front and back direction via a wheel 7 placed horizontally on the platform 1. Turntable 11 with 10
A machine base 12 is mounted on the rotary base 11, and a slide head 1 that slides up and down by a handle 13 and a rack mechanism (not shown) is mounted on the front surface of the machine base 12.
4, an electric drill main body 17 is mounted downwardly on the slide head 14 via a mounting bracket 15 and mounting screws 16, 16', and a shank holder 19 is provided at the lower end of the main shaft 18 of the electric drill main body 17, respectively.
An end mill 21 for cutting the top wall having blades 20, 20' on the outer periphery and bottom of the cylinder, a drill 22 for drilling a pilot hole, a tap 23, and an end mill 24 for boring are optionally replaced and attached to the shank holder 19. A slide gauge 26 for measuring the amount of vertical movement of the slide head 14 is installed next to the slide head 14 on the machine stand 12 so as to be movable up and down, and a weight body 27 with a handle 26 is provided separately from this.
A construction machine 28 is constructed in which a weight body 27 is placed on a base plate 6 and used.

Separately from this, a lid body 33 is constructed, which is donut-shaped, has an O-ring 31 fitted to its outer circumferential surface, and has new slanted water holes 32 opened at both upper and lower ends at appropriate locations. 33 on the inner peripheral surface
A tube body having a female thread 34 carved therein, a first male thread 35 and a second male thread 36 on the outer periphery of both upper and lower ends, and a third female thread 37 on the inner periphery of the upper end. 38 to the second female screw 34 and the first male screw 3
A fixed hole 39 for water introduction is provided at an intermediate height of the tube body 38 to communicate with the tube body 5 by screwing, and a cylindrical hole 39 having a closed upper surface and an open lower surface is provided. A third male screw 41 is carved on the outer peripheral surface of the upper half, and a driver groove 4 is formed on the upper surface.
This water control piece 43 is inserted into the pipe body 38 from above to form a third water control piece 43.
By screwing together the female screw 37 and the third male screw 41 and opening a movable water guide hole 44 with both ends opening inward and outward in the peripheral wall of the water control piece 43, a new built-in valve etc. 45 is constructed. .

In this way, the construction machine 28 and built-in items such as the new valve are brought to the site, the construction machine 28 is placed on the road surface where the existing snow removal nozzle 47 is buried, the weight body 27 is placed on it, and the handle 4 is then turned. While changing clothes, turn the landing leg threaded rods 2, 2', and 3, and then
After adjusting the horizontal orientation of the base plate 1, set screw 8
Loosening the rotation stop screw 10 and rotating the rotary table 11; tightening the rotation stop screw 10; tightening the movement set screw 8; 17
Align the center of the shank holder 19 with the center of the existing snow removal nozzle 47 by adjusting the height of the
The end mill 21 for cutting the ceiling wall is attached to the shank holder 19, and the electric drill body 17 is lowered using the handle 13 to check whether the bottom blade 20' of the end mill 21 for cutting the ceiling wall hits a predetermined location of the existing snow removal nozzle 47. At this time, if the bottom blade 20' of the end mill 21 for cutting the top wall
If it does not hit the existing snow removal nozzle 47 accurately, the position of the saddle 9, the direction of the rotary table 11, and the position of the base plate 1 are corrected, so that the end mill 21 for cutting the ceiling wall is accurately positioned. After that, check that the movement set screw 8 and rotation set screw 10 are tightened.

Next, operate the handle 13 to insert the bottom blade 20' of the top wall cutting end mill 21 into the existing snow removal nozzle 4.
Lightly touch the upper surface of the ceiling wall 48 of 7, and while it is in contact, move the slide gauge 25 up and down to align its zero point with the reference point (not shown), and then return the handle 13. Then, the bottom blade 20' of the end mill 21 is separated from the top wall 48 of the existing snow removal nozzle 47, and in this separated state, the electric drill body 17 is rotated, and the handle 13 is operated to lower the end mill 21. Then, the center part of the ceiling wall 48 of the existing snow removal nozzle 47 is cut into a circular shape with the old water sprinkling hole 49 remaining. Whether or not this cutting has been made sufficiently is confirmed by checking the amount of descent of the slide head 14 on the scale of the slide gauge 25, which has been set to zero, by means of determining whether the depth of the cut has reached a predetermined depth.

After that, the electric drill body 17 is stopped and returned to the upper position, the end mill 21 for cutting the ceiling wall is removed from the shank holder 19, and the part 50 surrounded by the circular cut and the built-in parts 51 such as the old valve are removed using special pliers. leave

Furthermore, a pilot hole drilling drill 22 is attached to the shank holder 19, and the pilot hole drilling drill 22 is rotated and lowered to open the case 5 of the existing snow removal nozzle 47.
A pilot hole 53 is bored in the bottom surface of step 2.

Next, a first female thread 54 is cut into the prepared hole 53 using the tap 23. Tap 23 for this installation work.
is rotated using a wrench 55 with a built-in ratchet wheel (not shown) that can be turned with one hand, and a short round bar pin 56 pre-installed on the wrench 55 is attached to the shank holder 1.
9 so that it can rotate freely and prevent the head from wobbling.

After that, tap 23 from the shank holder 19.
and wrench 55, and remove the relevant shank holder 1.
A boring end mill 24 is attached to the hole 9, and the boring end mill 24 is used to cut out the top wall and other parts of the existing snow melting nozzle 47 including the old water sprinkling hole 49.

In this way, the processing for the existing snow removal nozzle 47 is completed.

Next, the new valve and other built-in components 4 are placed in the space 57 formed by removing the old valve and other built-in components 51.
5 is inserted and the second male screw 36 is screwed into the first female screw 54, and as a result of the screwing, the outer peripheral surface of the lid body 33 and the incisal edge surface 58 of the hole formed by cutting with the boring end mill 24 are connected. and the opposite surfaces are made airtight with an O-ring 31, and then the upper surface of the case 52 of the existing snow removal nozzle 47 and the upper surface of the new built-in valve etc. 45 are polished to the same height with a sander. The construction work will then be completed.

Note that the drilling of the pilot hole 53 with the pilot hole drilling drill 22, the carving of the first female screw 54 with the tap 23, and the cutting of the top wall, etc., with the boring end mill 24 do not have to be in the order described above. .

〔Effect of the invention〕

The snow removal nozzle repair method of the present invention does not require scraping the buried concrete around the old snow removal nozzle, and greatly solves the above-mentioned problems such as noise, vibration, time, and danger. .

[Brief explanation of drawings]

FIG. 1 is a flowchart of an embodiment of the present invention, FIG. 2 is a front view showing a construction machine used for carrying out the present invention, FIG. 3 is a plan view, and FIG. 4 is a side view. 1... Base plate, 1'... Hand handle, 2, 2',
3...Threaded rod for landing leg, 4...Handle, 5,
5'... Float, 6... Frame, 7... Handle, 8...
Movement locking screw, 9...saddle, 10...rotation locking screw, 11...turntable, 12...machine base, 13...
Handle, 14...Slide head, 15...Mounting bracket, 16, 16'...Mounting screw, 17...Electric drill body, 18...Main shaft, 19...Shank holder, 20, 20'...Blade, 21... ...End mill, 22...Drill, 23...Tap, 24...
End mill, 25...Slide gauge, 26...
Handle, 27... weight body, 28... construction machine,
31...O-ring, 32...New water hole, 33...
Lid body, 34... second female screw, 35... first male screw, 36... second male screw, 37... third female screw,
38...Pipe body, 39...Fixed hole, 41...Third male screw, 42...Driver groove, 43...Water control piece, 44...Movable hole, 45...Built-in new valve,
47...Existing snow removal nozzle, 48...Ceiling wall, 49...
... Old watering hole, 50 ... Part, 51 ... Old valve built-in part, 52 ... Case, 53 ... Pilot hole, 54 ...
First female screw, 55... wrench, 56... round bar pin, 57... space, 58... incisal surface, 59... old cap, 60... new cap.

Claims (1)

[Claims] 1 The process of cutting the central part of the top wall of the nozzle body of the existing snow removal nozzle into a circle using an end mill, the process of removing the part surrounded by the circular cut and the built-in contents such as the old bubble, and the removal A boring process and a tap hole cutting process to fit built-in items such as new valves to be performed in the space formed by
A method for repairing a snow removal nozzle, comprising a step of loading a built-in item such as a new valve into the space using the tap hole in a suitable state, and a finishing step of cutting it to the same height as the road surface.