JPS5826450B2 - sand pile creation equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sand pile construction device for constructing sand piles in soft ground in order to improve the soft ground.

There have been various types of sand pile construction equipment for creating sand piles in soft ground, but one of them has a double pipe structure consisting of an outer casing and an inner casing, and is capable of creating high-quality sand piles. There is a sand pile creation device that can be used.

This sand pile construction device includes a hollow outer casing, an exciter disposed above the outer casing so that it can be raised and lowered via an air spring, and an upper end fixed to the exciter. an inner casing whose lower part is suspended in the outer casing; the air spring is filled with pressurized air to integrally fix the exciter and the outer casing; The outer casing (including the inner casing) penetrates into the ground due to the vertical vibration of the casing.

Then, the pressurized air in the air spring is gradually released and the edge between the exciter and the outer casing is cut to prevent the vibration of the exciter from being transmitted to the outer casing. The sand in the outer casing is compacted by moving only the inner casing up and down using the vibration of the exciter to prevent the ground from being agitated by the vibrations transmitted to the surrounding ground.
Next, the air spring is again filled with pressurized air to propagate the vibrations of the exciter to the outer casing, and the outer casing is pulled out, and the above-mentioned operations are repeated to create a sand pile in the ground.

However, since the above-mentioned sand pile construction apparatus uses a vibrator, a shock absorber is required.

In addition, in order to cut the edge between the outer casing and the inner casing to prevent vibrations from being transmitted to the ground around the outer casing, we temporarily stopped pulling out the outer casing, and then moved only the inner casing up and down to remove the outer casing. It is necessary to compact the sand, which has the disadvantage of poor work efficiency.

The present invention aims to provide a sand pile construction device that improves the above-mentioned drawbacks.

Hereinafter, six examples of the embodiments of the sand pile construction apparatus according to the present invention will be described with reference to the accompanying drawings.

1 to 11 show a first embodiment of the sand pile building apparatus of the present invention.

In this embodiment, the sand pile construction device of the present invention has an upper frame 1
00 and the lower pedestal 1, and its upper and lower pedestals 100 and 1
Guide struts 10 and 11 whose upper and lower ends are fixed between them, and a mounting base 1 which is attached to the guide struts io and 1i so as to be movable up and down.
2, interposed between the lower pedestal 1 and the mounting base 12,
A push-up air spring (hereinafter simply referred to as an upper air spring) serves as a means for pushing up the mounting base 12 over a long stroke.

) 4, and a pressing air spring (hereinafter simply referred to as a lower air spring) interposed between the upper frame 100 and the mounting base 12, and serving as means for pressing down the mounting base or the monitor.

) 400, two drive motors 3 mounted on the mounting base 12, and the upper ends of these two drive motors 3 are linked via a reducer 3o, and the lower part of the upper end is connected to the mounting base 12 and A hollow rotary vertical drive shaft 31 with a square cross section that is inserted into the lower frame 1 and hangs down, a sand discharge port 20 is provided at the lower end, and an earth auger 21 is attached, and the upper end is attached to the rotary vertical drive shaft 31. A hollow outer casing 2 is fitted onto the outside and is rotatably supported on the pedestal 1 via a fixed casing 8, which will be described later.
A rotational force transmitting means 5 is interposed between the upper end and the rotating vertical drive shaft 31 and transmits only the rotational force of the rotating vertical driving shaft 31 to the outer casing 2, and the upper end is mounted on the mounting base 12. At the same time, the vertical drive shaft 3 rotates the lower part from its upper end.
an inner casing 7 which is inserted into the outer casing 1 and the outer casing 2 and is equipped with an air hammer 6 at its lower end to compact the sand in the outer casing 2 and discharge the compacted sand from the outer casing 2; 2, and a fixed casing 8 provided with a hopper 8o for a sand inlet and supply port for injecting and supplying sand between the outer casing 2 and the inner casing 7.

The guide columns 10 and 11 consist of four large-diameter guide pipes 10 and four small-diameter guide pipes 11, two of each, a total of four guide pipes, and the upper and lower ends are connected to the upper frame 100 and the lower The air springs 4 and 400 are fixed to the frame 1 so that the vertical expansion and contraction strokes of the air springs 4 and 400 are sufficiently long.

Although the mounting base 12 is omitted in the drawing, a through hole through which the guide columns 10 and 11 can be inserted is provided.

As shown in FIGS. 5 to 8, the upper air spring 4 is
It is a so-called triple type, and includes two circular end plates 41, an appropriate number of circular intermediate plates 42 having a diameter slightly smaller than the diameter of the end plates 41, and an elastic material such as rubber. The bellows 43 and the cushion ring 430 are provided in an appropriate number, for example, three bellows 43 and a cushion ring 430.

An engaging claw 410 that closely engages the end of the bellows 43 is protruded in an annular shape on one surface of the end plate 41, and a mounting hole 411 is appropriately provided at a location outside the engaging claw 410 of the end plate 41. establish.

Engagement claws 420 that closely engage the ends of the bellows 43 are protruded on both sides of the intermediate plate 42 in an annular shape having the same diameter as the engagement claws 410 of the end plate 41, and the engagement claws of the intermediate plate 42. 42
A through hole 421 for air circulation is provided in the center inside the 0,
On the other hand, four sets of guide arms 44 are provided at the outer peripheral end of the intermediate plate 42.

This guide arm 44 includes a substantially rectangular fixed plate 440 fixed to the outer peripheral end of the intermediate plate 42 and a substantially triangular sliding plate 44.
, a semi-annular guide member 442 fixed to the slide plate 441, a fixing bolt 443 and a nut 444.
The fixing bolt 443 is attached to the fixing plate 440.
Two through-holes 445 are provided in the slide plate 441 through which the fixing bolts 443 can be inserted, and elongated holes 446 through which the fixing bolts 443 can be inserted correspond to the through-holes 445 in the fixing plate 440. The fixing bolts 443 and nuts 444 are tightened in the through holes 445 of the fixing plate 440 and the elongated holes 446 of the slide plate 441, and the slide plate 4
41 is attached to the fixed plate 440 so as to be slightly slidable in the radial direction of the intermediate plate 42.

Then, the two end plates 41 are placed facing each other with an appropriate gap between them with the engaging claws 410 inside, and the two intermediate plates 42 are disposed between the two end plates 41, and Board 4
2 and the end plate 41 and between the intermediate plate 42 and the intermediate plate 42, and the two ends of the bellows 43 are engaged with the engaging claws 410 of the end plate 41 and the intermediate plate 42. Claw 4
20 or the engaging claws 420 of the intermediate plate 42 and the engaging claws 420 of the intermediate plate 42, respectively, and a cushion ring 430 is fitted into the valley of the bellows 43, and the lower end plate 41
A through hole 412 for air circulation is provided in the center.

Although the lower air spring 400 is not illustrated and described, it is a single-ring type in which one bellows is interposed between the two end plates of the above-mentioned earth air spring 4.

Two soil air springs 4 thus formed are interposed between the mounting base 12 and the lower pedestal 1, and both upper and lower end plates 4 of the soil air springs 4 are installed.
1 to the mounting base 12 and the lower mount 1, respectively, and the guide member 442 of the earth air spring 4 to the guide struts 10 and 1.
A branch pipe (not shown) from an air circulation pipe (not shown) is connected to the through hole 412 for air circulation in the lower end plate 41 of the soil air spring 4.

Further, the lower air spring 400 is interposed between the mounting base 12 and the upper frame 100, and a branch pipe from the air distribution pipe is connected to the lower air spring 400.

An air hose or the like (not shown) from a compressor (not shown) is connected to an air inlet and an air outlet provided in this air distribution pipe via a solenoid valve or the like (not shown).

By switching this solenoid valve etc., air from the compressor is alternately pressed into and out of the soil air spring 4 and the lower air spring 400, so that the soil air spring 4 and the lower air spring 400 alternately expand and contract. Said mounting base 1
2 is configured to rise and fall between the upper pedestal 100 and the lower pedestal 1.

The outer casing 2 includes a large-diameter first pipe member 22 into which the rotational vertical drive shaft 31 is fitted, a large-diameter second pipe member 23 that penetrates into the soft ground, and the first pipe member 22 and the second pipe member 22. Pipe member 2
3 through a rib 28, and the first pipe member 22
and a third pipe member 24 having a diameter slightly smaller than the diameter of the second pipe member 23, and a sand inlet 29 is provided between the lower end of the third pipe member 24 and the upper end of the second pipe member 23, and A sand discharge port 20 is provided on the lower end surface of the second pipe member 23, and an opening/closing shoe 25 is provided on the sand discharge port 20, and the opening/closing shoe 25 is closed when the outer casing 2 is driven to prevent dirt from entering the outer casing 2.
The outer casing 2 is opened and opened when the outer casing 2 is pulled out and is installed so as to be openable and closable by a hinge mechanism 26 so as not to interfere with the sand pile's precepts.

A framework 27 covering the opening/closing shoe 25 is fixed to the lower end of the second pipe member 23, and an earth auger 2 is attached to the lower surface of the framework 27.
1 will be provided.

The rotating vertical drive shaft 31 whose upper end is linked to the drive motor 3
has its lower end hanging down to the lower end of the first pipe section 22 of the outer casing 2.

As shown in FIGS. 3 and 4, the rotational force transmitting means 5 is provided on the inner circumferential side of the first tube member 22 of the outer casing 2 in the direction of the central axis of the outer casing 2 and with a rotating vertical drive shaft 31. 900 at the central angle facing the 4 outer surface of
There are four guide plates 50 fixed in each direction (in the cross direction) and two guide plates 50 on the four outer surfaces of the rotating vertical drive shaft 31, for a total of eight guide plates on the upper and lower sides.
The guide plate 50 is fitted between the two guide rollers 51.

Note that the center axis of the guide roller 51 and the outer casing 2
The central axis of the (rotating vertical drive shaft 31) is made orthogonal.

By configuring as described above, the rotating vertical drive shaft 31
When the is moved up and down, the guide roller 51 of the rotating vertical drive shaft 31
rotates along the guide plate 50 of the outer casing 2, so only the rotating vertical drive shaft 31 moves up and down, and the outer casing 2 does not move up and down.

Further, when the rotational vertical drive shaft 31 rotates, a total of eight guide rollers 51 (two pairs of the rotational vertical drive shaft 31) are engaged with the four guide plates 50 of the outer casing 2 from both sides. Since the outer casing 2 is aligned, the outer casing 2 rotates as the rotational vertical drive shaft 31 rotates.

The inner casing 7 has a jet nozzle 71 fixed to its lower end, and a jet air supply pipe 72 fixed thereto, and the upper end of the jet air supply pipe 72 is connected to a swivel joint or the like, and the lower end is connected to the jet nozzle 71. An air hose (not shown) from a compressor (not shown) is connected to a swivel joint or the like so that air is injected from the jet nozzle 41.

As shown in FIGS. 9 and 10, the air hammer 6 includes a head 60 fixed to the lower end of the inner casing 7, and an upper flange connected to the flange of the head 60 by bolts 61.
A cylinder 62 fixed by, etc., a piston 63 slidably housed in the cylinder 62, and the piston 63
The head 60 is provided with an air supply port 600 and a bifurcated air supply passage 601, and the cylinder 62 is connected to the air supply passage 601 of the head 60. Air supply path 621
Two air outlet ports 622 are provided in the axial direction of the cylinder 62, two air outlet ports 622 are provided in each of four locations below the air supply path 621, eight in total, and an air insertion port is provided in the piston 63. A first air chamber 66 is provided between the outer circumferential side of the piston 63 and the inner circumferential side of the cylinder 62 and communicates with the air supply path 621 of the cylinder 62. Insertion port 6
A second air chamber 67 communicating with the air chamber 30 is provided.

The lower end of an air feeding vibro 8 passed through the inner casing 7 is connected to the supply port 600 of the head 60, and an air hose or the like (not shown) from a compressor (not shown) is connected to the upper end of the air feeding vibro 8. When air is supplied through the air supply vibro 8, the hammer 65 moves up and down.

That is, when air is supplied through the air supply vibro 8, the air is supplied to the supply port 600, the supply path 601, 621, . The piston 6 is press-fitted into the second air chamber 67 through the insertion port 630.
3 is pressed down, and the hammer 65 descends accordingly.

The piston 63 descends, and the first air chamber 66 and second air chamber 67
When the second air chamber 67 and the discharge port 622 are closed and communicate with each other through the insertion port 630, the air in the second air chamber 67 is discharged to the outside through the insertion port 630 and the discharge port 622. , the air that is continuously supplied via the air supply vibro 8 passes through the supply port 600 and the supply paths 601 and 621 to the first
The piston 63 is pushed up by being press-fitted into the air 66, and the hammer 65 rises accordingly.

Thereafter, the above-described action is repeated to move the hammer 65 up and down independently of the up and down movement of the inner casing 7 by the air spring 4.

The fixed casing 8 includes a first tube member 81 whose upper end is fixed to the lower surface of the pedestal 1, and a second tube member 82 for supporting the outer casing 2 whose upper end is fixed to the lower end of the first tube member 81.
The upper end is fixed to the lower end of the second pipe member 82, and the hopper 8
0, and a fourth tube member 84 whose upper end is fixed to the lower end of the third tube member 83, and a guide roller is provided on the inner peripheral side of the second tube member 82. 8
5 are provided in upper and lower two stages every 600 at the central angle, and on the other hand, a brim-shaped guide plate 86 is fixedly fixed in the upper and lower sides on the outer peripheral side of the first pipe member 22 of the outer casing 2, and the lower surface of the guide plate 86 on this By engaging the upper and lower two stages of guide rollers 85 with the upper surface of the lower guide plate 86, the outer casing 2 can be rotatably supported on the lower pedestal 1 via the fixed casing 8.

Note that the center axis of the guide roller 85 and the center axis of the outer casing 2 (fixed casing 8) are perpendicular to each other.

Next, the third tube member 83 and the fourth tube member 84 fit the small-diameter third tube member 24 of the outer casing 2 , and the fourth tube member 84 rotates the second tube member 23 of the outer casing 2 . Support freely and prevent sand from leaking.

The sand pile building apparatus of the present invention in this embodiment has the above-mentioned configuration.Next, the sand pile building operation will be explained with reference to FIG. 11.

(a) First, the sand pile construction device of the present invention is suspended from a leader via a wire rope, a banger, a sheave, etc. (not shown in the drawing), and is positioned at a predetermined position on the soft ground G to be improved.

Next, the drive motor 3 is driven to cause the outer casing 2 and the inner casing 7 to penetrate into the ground G to a required depth.

That is, when the drive motor 3 is rotated in the forward direction, the rotational force in the forward direction is transmitted to the rotating vertical drive shaft 3 via the reducer 30.
1, and is further transmitted to the outer casing 2 from this rotating vertical drive shaft 31, so that the outer casing 2 rotates in the forward direction,
As the outer casing 2 rotates, the earth auger 21 rotates in the forward direction, and the rotation of the earth auger 21 allows the outer casing 2 and the inner casing 7 to penetrate into the ground G.

At this time, since the outer casing 2 and the inner casing 7 are penetrated into the ground G by the rotation of the earth auger 21, the inner and outer casings can be penetrated faster than when the casing is penetrated by a vibro (exciter). , and can be penetrated with almost no noise and vibration, and there is no need for a shock absorber.

Furthermore, since the opening/closing shoe 25 is closed when the inner and outer casings penetrate, there is no risk of dirt entering the outer casing 2.

(b) After penetrating the outer casing 2 and inner casing 7 to the required depth by the operation in (a) above, the drive motor 3 is stopped and the sand is poured from the hopper 80 into the outer casing 2.
Throw it inside.

That is, sand introduced from the hopper 80 enters the fixed casing 8, enters the outer casing 2 through the sand inlet 29 of the outer casing 2, and descends between the outer casing 2 and the inner casing 7.

Note that since the diameter of the third pipe member 24 of the outer casing 2 at the sand inlet 29 is smaller than the diameter of the second pipe member 23, sand can enter easily.

(C) j (d) Then, the soil air spring 4 and the lower air spring 400 are actuated alternately to move the inner casing 7 up and down to compact the sand in the outer casing 2.

That is, by moving the mounting base 12 up and down by alternately pressing air into and out of the soil air spring 4 and the bottom air spring 400, the rotary vertical drive shaft 31 moves up and down, but the rotational force transmission means 5 moves the air out of the air spring 400. Casing 2 does not move up or down.

Therefore, the ground G around the outer casing 2 is protected without being agitated.

On the other hand, the inner casing 7 moves up and down via the mounting base 12, and the sand in the outer casing 2 is compacted by the inner casing 7 and pushed out from the tip of the outer casing 2.

Further, when air is supplied to the air hammer 6 via the air supply vibro 8, the hammer 65 moves up and down independently of the up and down movement of the inner casing 7, and further rams the sand pushed out and compacted by the inner casing 7. Harden.

Then, depending on the amount of sand pushed out of the inner casing I, the earth auger 21 is reversely rotated via the drive motor 3 to gradually pull out the outer casing 2.

At this time, if the stroke length of the vertical movement of the inner casing 7 is large, the amount of sand extruded from the inner casing 7 will increase,
Therefore, the sand is well-flowed and sand piles can be created efficiently and quickly.

Furthermore, in the present invention, when the inner casing 7 is lowered, the lower air spring 400 operates to forcibly push the inner casing 7 down, so that the push-down blade of the inner casing 4 is simply a part of the mounting base 12 and drive motor 3. Quite a dog compared to its weight.

That is, the inner casing 7 is pushed down with a large force.

Therefore, tamping and extrusion of sand is good.

As described above, according to the present invention, there is no need to stop pulling out the outer casing 2, so that work efficiency can be significantly improved.

In addition, when air is injected from the jet nozzle 71, the sand is pushed out from the tip of the outer casing 2, and together with the pushing out and tamping of the inner casing 7 and the tamping of the air hammer 6, an even stronger sand pile is quickly formed. can be created.

Furthermore, since the opening/closing shoe 25 is open when the sand pile is being laid down, there is no risk of interfering with the construction of the sand pile.

Furthermore, since the upper air spring 4 has the guide member 442 engaged with the guide struts 10 and 11, the earth air spring 4 can expand and contract over a long stroke, but there is no possibility that it will deviate in a direction perpendicular to the direction of expansion and contraction. There is no danger.

Although omitted in the drawing, the lower air spring 4
Similarly to the above-mentioned soil air spring 4, the guide member is engaged with the guide column, and the spring 00 is configured so that it will not shift in the direction perpendicular to the direction of expansion and contraction even if the spring is expanded and contracted over a long stroke.

(e) Repeat the operations (C) and (d) above to create strong sand piles in the soft ground G.

Although the air spring 4 is used in the above-described embodiment, an air jack, a hydraulic jack, or a hydraulic cylinder may be used instead.

Further, although the rotating vertical drive shaft 31 has a square cross section, it may be circular or have another shape.

FIG. 12 is a partially cutaway front view showing a second embodiment of the sand pile building apparatus of the present invention.

The sand pile building device of the present invention in this embodiment omits the rotational force transmission means 5, and has two drive motors 3, 3 and a reducer 30 mounted on the lower frame 1, and this reducer 30.
The upper and lower ends of the guide column 11 are fixed between the guide column 11 and the upper frame 100, and the mounting frame 12 is attached to the guide column 11 so as to be movable up and down.
A single-type lower air spring 400 and an L-type soil air spring 4 are interposed between the two.

On the other hand, a fixed casing 8 provided with a hopper 80 is fixed to the lower surface of the lower pedestal 1, and the upper end of the small-diameter third pipe member 24 of the outer casing 2 is connected to the reducer 30.
The upper end of a large-diameter second pipe member 23 is connected to the lower end of the pipe member 24 so that a sand inlet 29 is formed by the rib 28, and the second pipe member 23 is connected to the inner peripheral side of the fixed casing 8 from a backing or the like. It is rotatably supported by a support portion 87.

In the figure, reference numeral 73 indicates a small wing for steadying the inner casing 7.

This embodiment provides the same effects as those of the first embodiment described above, and the structure is simplified since no rotational force transmitting means is required.

FIG. 13 is a partially cutaway front view showing a third embodiment of the sand pile building device of the present invention.

The structure of the sand pile making device of this embodiment is not much different from that of the second embodiment described above, except that the first pipe member 22 connected to the reducer 30 and the second pipe member 22 penetrating into the soft ground are used. The pipe member 23 is connected with the rib 28 so that a sand inlet 29 is formed, and the same effect as that of the second embodiment described above can be obtained.

FIG. 14 is a partially cutaway front view showing a fourth embodiment of the sand pile building apparatus of the present invention.

The sand pile building device of the present invention in this embodiment has an outer casing 2 fixed and an earth auger 21 inside the inner casing 7.
A rotating shaft 200 is inserted therethrough.

That is, the Monken 120 is attached to the guide columns 10 and 11 fixedly installed between the upper mount 100 and the lower mount 1 so as to be able to rise and fall, and the Monken 120, the upper mount 100 and the lower mount 1
A triple lower air spring 400 and a triple earth air spring 4 are interposed between the two drive motors 3 and the reducer 30 on the upper frame 100.

The upper end of a fixed casing 8 provided with two hoppers 80 is fixed to the lower surface of the lower pedestal 1, the upper end of the outer casing 2 is fixed to the lower end of this fixed casing 8, and the inner casing 7 is fixed to the lower surface of the Monken 120. While fixing the upper end, the inner casing 7 is inserted into the fixed casing 8 and the outer casing 2, and the upper end of the hollow rotating shaft 200 is fixed to the reducer 30.
is inserted into the inner casing T, and the air feeding vibro 8 is inserted into the rotating shaft 200 thereof.

Similar to the second and third embodiments described above, the sand pile making device of this embodiment does not require a rotational force transmission means, and if a monkey bars are provided on the upper surface of the lower pedestal 1,
An impact force of 0 is transmitted to the fixed casing 8 and the outer casing 2 via the lower frame 1, and penetration into the soft ground becomes faster.

Furthermore, when the Monken 120 and the inner casing 7 are lowered, the lower air spring 400 is activated and forcibly pushes down the Monken 120 and the inner casing 7, so that the Monken 120 and the inner casing 7 are lowered.
Sufficient action even if the weight is small (casing driving)
can be accomplished.

Fig. 15 and Fig. 16 show the fifth example of the sand pile making device of the present invention.
FIG. 2 is a partial front view and a plan view showing an embodiment of the invention.

The sand pile building device of the present invention in this embodiment has a fixed casing 8 provided with two hoppers 80 fixed on a reducer 30, and upper and lower frames 1 and 1 mounted on the fixed casing 8.
00, guide support 11. Attachment 12. A double-type upper and lower air spring 4 and 400 are installed, a through hole 32 is provided in the reducer 30, and the reducer 30 is connected to the outer casing 2, while an inner The upper end of the casing 7 is fixed, and the casing 7 is connected to the fixed casing 8 and the reducer 3.
It is inserted into the through hole 32 of No. 0 and the outer casing 2.

Similar to the second, third, and fourth embodiments described above, this embodiment does not require a rotational force transmission means, and moreover, the lower surface of the reducer 30 of the casing is in contact with the ground surface of the soft ground. The casing can be penetrated deeply, and there is no loss in the penetration length of the casing.

FIG. 17 is a partially cutaway front view showing a sixth embodiment of the sand pile building device of the present invention.

The sand pile construction device of this embodiment is for penetrating the casing into soft ground using a casing.

That is, the Monken 120 is mounted on the guide columns 10 and 11 fixed to the upper and lower frames 1 and 100 so as to be able to rise and lower, and between the Monken 120 and the upper and lower frames 1 and 100, several air springs 4 and 4 are installed as appropriate. A plurality of lower air springs 400 are installed as appropriate, a pipe member 88 for receiving a cable is fixed on the lower mount 1, and the outer casing 2 is fixed to the lower surface of the lower mount 1 via a flange pipe 89. , the upper end of the inner casing 7 is fixed to the Monken 120, and the inner casing 7 is attached to the Monken receiving pipe member 88 and the flange pipe 89.
and inserted into the outer casing 2.

In this embodiment, the casing is penetrated into the soft ground by the impact of the Monken Ken 120 by moving it up and down, so a drive motor, a speed reducer, an earth auger, etc. are not required.

Moreover, when the MONKEN 120 descends, the lower air spring 40
0 operates and forces Monken 120 down, so
Even if the weight of the Monken 120 is small, the casing driving action of the Monken 120 can be sufficiently performed.

In addition, in the above-mentioned embodiment, both the upper and lower frames 1 and 10
0 and the mounting base 12 include plate-shaped ones as well as trapezoidal ones.

In addition to the above-mentioned air springs, an air jack, a hydraulic jack, or a hydraulic cylinder may be used as the mounting base or the control lever pushing up means and the mounting board or control lever pressing means.

As is clear from the above embodiments, the sand pile building device of the present invention is capable of compacting and discharging the sand in the outer casing by moving the inner casing up and down using the mounting base or the push-up means and the mounting base or push-down means. Since the outer casing is pulled up while the outer casing is pulled up, it is possible to remove sand easily, and there is no need to stop pulling up the outer casing, resulting in good work efficiency.

In addition, since no exciter is used, the shock absorber
etc., and there are fewer problems with noise and vibration.

Moreover, when the inner casing is lowered, the mounting base or the push-down means for the monitor operates to forcibly lower the inner casing.
Furthermore, the sand comes out faster and better, thus improving work efficiency.

Note that, as a matter of course, the sand pile construction apparatus of the present invention is not limited to the above-mentioned embodiments.

[Brief explanation of the drawing]

FIGS. 1 to 11 show a first diagram of the sand pile making device according to the present invention.
Fig. 1 is a partially cutaway front view, Fig. 2 is a partially cutaway side view, Fig. 3 is a sectional view taken along line I-1 in Fig. 1, and Fig. 4 is a diagram showing the rotational force transmitting means. A partial front view, Figures 5 and 6 are cross-sectional views and plan views of the air spring, and Figure 7 is a partial front view of the air spring.
Figure 8 is an enlarged view of the ■ arrow in Figure 7, Figure 9 is a vertical sectional view of the air hammer, Figures 10 a and b are explanatory diagrams of the operating state of the air hammer, Figure 11 a, b. cyd and e are construction explanatory drawings. FIG. 12 is a partially cutaway front view showing a second embodiment of the sand pile building apparatus of the present invention. FIG. 13 is a partially cutaway front view showing a third embodiment of the sand pile building device of the present invention. FIG. 14 is a partially cutaway front view showing a fourth embodiment of the sand pile building apparatus of the present invention. Fig. 15 and Fig. 16 show the fifth example of the sand pile making device of the present invention.
FIG. 2 is a partial front view and a plan view showing an embodiment of the invention. FIG. 17 is a partially cutaway front view showing a sixth embodiment of the sand pile building apparatus of the present invention. 1...--Lower stand, 100...Upper stand, 1
0, 11... Guide column, 12... Mounting base, 120... Monkey, 2... Outer casing, 20... Sand spout. Exit, 4...
・Upper air spring (mounting base or Monken push-up means), 40
0...Lower air spring (mounting base or lower edge of Monken press), 7...Inner casing, 80...
hopper.

Claims (1)

[Scope of Claims] 1. An upper pedestal and a lower pedestal, a guide column fixed between the upper and lower pedestals, a mounting table or a monitor mounted on the guide column so that it can be raised and lowered, and the mounting table or monitor and the lower frame. A means for pushing up the mount or the monitor, which is interposed between the mount and the mount, and pushes up the mount or the monitor, and a means for pushing up the mount or the monitor, which is interposed between the mount or the monitor and the upper pedestal, and pushes down the mount or the monitor. A means for pressing down a mounting base or a monitor, a hollow outer casing suspended from the lower mount, an upper end of which is attached to the mounting base or a monitor, and a portion below the upper end is inserted into the outer casing; An inner casing for compacting sand in the casing and discharging the compacted sand from an outer casing, and a sand input supply port provided in the outer casing for supplying sand between the outer casing and the inner casing. A sand pile creation device characterized by: 2. Claim 1, characterized in that the push-up stroke length of the mounting base or the adjustable push-up means and the downward stroke length of the mounting base or the adjustable push-down means are increased to increase the stroke length of the vertical movement of the inner casing. The described sand pile creation device. 3. The sand pile building device according to claim 1 or 2, wherein the inner casing has an air hammer at its lower end that moves up and down independently of the up and down movement of the inner casing.