JPH076000Y2 - Water jet hose - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention is installed near the tip of a pile in order to reduce the resistance to press-fitting of a pile when press-fitting various types of resistance such as a burnishing plate and H-shaped steel resistance into the ground. The present invention relates to a water jet hose having a jet nozzle for ejecting water.

[0002]

2. Description of the Related Art Conventionally, when various types of piles such as U-shaped, Z-shaped, and H-shaped steel sheet piles are press-fitted into relatively hard ground, the pile press-fitting resistance is reduced to facilitate press-fitting. Attach a water jet hose and press the pile while ejecting pressure water from the jet nozzle at the tip. In this way, when the piles are press-fitted by using the anti-press fitting machine and water jet together, at the site where there is an obstacle such as a bridge at the top, the piles with the specified length cannot be used and are cut to a workable length. Stakes sequentially,
Join and work.

In this case, if a pipe made of steel is used along the portion of the pile, the pipe must be joined in the same manner as the pile, and water supply must be stopped at the time of joining. Therefore, the pipe made of steel has flexibility. I am using a water jet hose.

As shown in FIG. 5, this water jet hose has a tip fitting 2 provided with a jet nozzle 1 at the tip.
And a rear end fitting 3 is attached to the rear end thereof. The front end fitting 2 has a fixed band attachment portion 4 formed at the front end thereof, and a locking portion 5 of a pulling wire rope 8 formed at the rear end thereof. The fixing band 6 is locked to the fixing band attachment portion 4 and both ends of the fixing band 6 are welded to attach the tip fitting 2 to the anti-7. In addition,
The welding strength of the fixing band is such that it does not fall off when the pile is pressed. Attach the tip of the pull-out wire rope 8 to the locking part 5,
The middle portion is fixed by a mounting wire 10 along with the high pressure hose 9.

At the time of press-fitting the pile, as shown in FIG. 1, the anti-7 is grasped by the chuck 12 of the press-fitting pattern 11 and pressure water is supplied from the jet hose 13, and the chuck 12 is lowered while jetting the pressure water from the jet nozzle 1. Press the pile 7 into the ground. When the press-fitting of the pile is completed, the jet hose 13 needs to be pulled out and collected, so the pulling wire rope 8 is pulled, the welded portion of the fixing band 6 is cut, and the jet hose 13 is removed from the pile 7 and collected on the ground.

[0006]

In the conventional jet hose 13 in which the pulling wire rope 8 is attached to the engaging portion 5 of the tip fitting 2, when the jet hose is pulled out,
After pulling out the wire rope 8 for pulling out, the welding part of the fixing band 6 is cut, and since the high-pressure hose 9 has flexibility, the tip fitting 2 becomes slanted as shown in FIG. It was difficult to pull out the jet hose 13 because it was damaged by hitting the flange portion 14 or the frictional resistance due to the ground or stones increased. Moreover, since the pulling wire rope 8 is fixed by the attaching wire 10 along with the high pressure hose 9,
It was difficult to wind the reel (not shown).

For this reason, if a thick wire rope for pulling out is used to forcibly pull an inclined jet nozzle, the nozzle portion may be damaged and become unusable. Also,
There is also a method of cutting the welded part by pulling only the jet hose without using the pulling wire rope, but the hose currently commonly used cannot withstand the tensile strength. The present invention solves the above problems, prevents the tip fitting from tilting when the jet hose is pulled out, and reduces the resistance of the wire rope for pulling out during press fitting and the resistance when pulling up the hose, thus handling the hose. It is intended to provide a water jet hose that facilitates.

[0008]

In order to achieve the above-mentioned object, the present invention is a water comprising a tip metal fitting having a jet nozzle at the tip and a mounting portion formed on the outer periphery, a high pressure hose, and a rear metal fitting. In the jet hose, a penetrating wire rope is passed through the inside of the high-pressure hose, and its tip is locked to the internal tip of the tip fitting, and its rear end is locked to the inner rear end of the rear fitting, The special feature is that the pull-out means is locked to the locking portion formed on the rear portion of the outer periphery of the rear end fitting.

[0009]

[Operation] When the water jet hose is recovered after the resistance is press-fitted by the pile press-fitting machine, the wire rope for pulling out is pulled to cut off the welded portion with the pile of the tip fitting. Further, although it is collected by the pulling-out means, a tensile force is transmitted from the engaging portion of the rear end fitting to the tip fitting through the penetrating wire rope, and the water jet hose is collected without tilting the tip fitting and the jet nozzle.

[0010]

Embodiments of the present invention will now be described with reference to the drawings. 2 to 4 are views showing an embodiment of the present invention. As shown in FIG. 2, a flexible high-pressure hose 9 is attached to a tip fitting 2 having a jet nozzle 1 attached to its tip, and a rear end portion of the high-pressure hose 9 has a locking portion for a wire rope 8 for pulling out. A rear end fitting 3 provided with 5 is attached. A penetrating wire rope 15 is attached to the inside of the high-pressure hose 9 formed in this way from the substantially inside of the tip of the tip fitting 2 to the inside of the high-pressure hose 9 and the rear end of the inside of the tail fitting 3.

The penetrating wire rope 15 is attached to the end fittings 2, 3 at the front and rear ends by the annular locking portions formed at both ends.
It is locked to a locking pin 16 provided on the. The tip fitting 2 has a fixing band 6 locked to the fixing band attachment portion 4, and both ends of the fixing band 6 are attached to the pile 7 by welding.

Next, the operation of this embodiment will be described. As shown in FIG. 2, the penetrating wire rope 1 is provided inside the front end fitting 2, the high pressure hose 9, and the rear end fitting 3 provided with the jet nozzle 1.
The pile 7 to which the jet hose 13 containing 5 is attached by the fixing band 6 is clamped by the chuck 12 of the anti-press fitting machine 11. When the chuck 12 is lowered and the pile 7 is press-fitted into the ground, pressure water is jetted from the jet nozzle 1 to advance the excavation while reducing the press-fitting resistance.

When press-fitting to a predetermined depth, the clamping of the anti-ring 7 is released, the chuck 12 is raised, and then the joint piles to be press-fitted in succession are clamped by the chuck 12 and positioned on the upper end of the previously press-fitted pile 7. Welding and press-fit continuously. In this case, the jet hose 13 is press-fitted with the pile while contacting the surface of the pile. In this way, the press-fitting of the pile having the predetermined length is completed.

Next, when the jet hose 13 is recovered, the pulling wire rope 8 attached to the rear end fitting 3 is pulled, and the pulling force is transmitted to the tip fitting 2 via the internally penetrating wire rope 15. The welding of the fixing band 6 is cut, and the jet hose 13 is removed from the pile 7. At this time, the jet hose 13 is the inner wire rope 15
Because it is integrated by the jet nozzle 1 at the tip
The (tip fitting 2) can be smoothly pulled up and collected without tilting.

[0015]

Since the present invention is constructed as described above,
When collecting the water jet hose, the tip fitting and the jet nozzle do not tilt, so there is no contact with the flanges on both sides of the pile to damage it, and it is economical to use repeatedly. Also, because there is little frictional resistance due to the ground or stones,
The water jet hose can be collected smoothly without being cut or damaged. Furthermore, since the wire rope is installed inside the high-pressure hose, the high-pressure hose does not become bulky, and the winding operation on the reel can be performed smoothly, improving work efficiency.

[Brief description of drawings]

FIG. 1 is a side view of a conventional water jet hose in which a pile is press-fitted and pulled out.

FIG. 2 is a front view of an embodiment of the present invention.

FIG. 3 is a perspective view showing an embodiment of a water jet hose mounting portion of the present invention.

FIG. 4 is a vertical cross-sectional view showing an embodiment of the penetrating wire rope attachment portion of the present invention.

FIG. 5 is a front view of a conventional water jet hose.

FIG. 6 is an explanatory view at the time of collecting a conventional water jet hose.

[Explanation of symbols]

 1 Jet Nozzle 2 Tip Metal Fitting 3 Rear End Fitting 5 Locking Part 6 Fixing Band 7 Pile 8 Wire Wire for Extraction 9 High Pressure Hose 13 Jet Hose 15 Penetrating Wire Rope 16 Locking Pin

Claims (1)

[Scope of utility model registration request] 1. A water jet hose comprising a front metal fitting having a jet nozzle at the tip and a mounting portion formed on the outer peripheral portion thereof, a high pressure hose, and a rear metal fitting, wherein a penetrating wire rope penetrates the inside of the high pressure hose. The leading end is locked to the inner front end of the front end metal fitting, and the rear end is locked to the inner rear end of the rear end metal fitting, and is pulled out to the locking portion formed on the outer peripheral rear portion of the rear end metal fitting. Water jet hose with a lock.