KR102566138B1 - Automatic injection device for cement stabilizer - Google Patents

Abstract

The present invention relates to an automatic cement hardening agent injection device capable of remotely controlling the supply of cement hardening agent and automatically opening and closing the outlet by forward and reverse rotation of the head, wherein an auger device is installed in the crawler crane , The main rod is vertically coupled to the auger device, and the lower head and the upper head that rotate and spray the cement hardening agent are coupled vertically at intervals to the main rod, and the auger device has a length by a plurality of fixing parts A moving discharge pipe capable of adjusting is fixed, and a hose on one side for supplying cement solidifying agent by being branched into two is connected to the main rod communicating with the lower and upper heads, and the hose on the other side is connected to the moving discharge pipe. In the moving discharge pipe, a solenoid valve configured to be remotely opened and closed by an operator of a crawler crane is installed, and the upper head is composed of a first screw bit and a second screw bit, and inside the second screw bit A plurality of discharge pipes communicating with the main rod are formed, and a ball valve opened and closed by forward and reverse rotation of the upper head is installed in the discharge pipe.
Therefore, the present invention supplies the cement hardening agent sprayed from the lower head, the upper head, and the moving discharge pipe with one hose, so that a remote worker supplying the cement hardening agent can conveniently manage it, thereby reducing the working time. there is In addition, by branching one hose and spraying cement hardening agent in a 3-way structure, sufficient supply can be maintained even if one nozzle is clogged, and the supply of cement hardening agent can be conveniently controlled by remotely controlling the opening and closing of the moving discharge pipe. can be adjusted accordingly. In addition, there is an advantage in that the spraying of the cement solidifying agent can be automatically adjusted by using a ball valve that is opened and closed by normal and reverse rotation of the upper head.

Description

Automatic injection device for cement stabilizer}

The present invention relates to an injection device installed in a ground excavation device for forming a hole in the ground below an auger device and injecting a cement hardening agent, and more particularly, the supply of the cement hardening agent can be remotely controlled, and the head It relates to an automatic cement solidifying agent injection device capable of automatically opening and closing the outlet by forward and reverse rotation.

In general, the method of constructing a vertical barrier wall using columnar piles in a column type for improving or reinforcing soft ground to reinforce the foundation of various concrete structures or excavate underground is a method of placing piles in the ground and excavating the ground There is a method of constructing a pile by doing so, and the method of placing the pile on the ground has a problem in that vibration, noise and dust are generated because the pile is installed by hitting the pile with a heavy body.

Therefore, the latter method is widely used in recent years, and the latter method is constructed by drilling to a predetermined depth in an auger method and then injecting and filling the cement solidifying agent during drawing.

A ground excavation device is used to improve soft ground or wet tidal flats or to build a water barrier continuous wall in the ground, and the above ground excavation device includes a crawler crane operating on the ground and A leader attached to a support arm formed at the tip and erected vertically high on the ground, an auger machine installed in a suspended state on the wire rope at the top of the leader and operating for lifting, A rotator mounted on the lower side of the auger device to receive power from the auger device, and 1 to 5 output shafts formed on the lower side of the rotator, each has a spiral screw for discharging the excavated soil to the ground. A multiaxial ground excavation rod installed in a structure in which the excavation rods formed with the excavation rods formed with the agitation rod and the auger head excavating the excavation rod and the agitation blades for agitating the excavated soil are vertically connected in multi-stage. are equipped

The above-described multi-axis ground excavation rod is composed of a connection rod connected to the upper part, a stirring rod connected to the middle part, and an excavation rod connected to the lower part. In each center, one passage for supplying cement paste is formed.

The above-described ground excavation apparatus of the prior art includes an auger head that is assembled at the lower end of an excavation rod connected to a lower portion of the cement pool injected through a supply passage formed at the center of the ground excavation rod to excavate the ground when excavating the ground. By discharging through the auger head, the cement paste discharged from the auger head is agitated and mixed with the soil excavated by the auger head to improve soft ground or build a continuous water barrier in the ground.

Recently, a ground excavation device and a cement solidifying agent injection device for forming holes of different diameters on the upper and lower sides using two heads spaced vertically have been provided. As shown in FIG. 1, these devices are crawler cranes. The main rod (1) is vertically installed in the auger device of the crawler crane, and the lower head (2) for drilling the ground is rotatably coupled to the lower side of the main rod (1), and the main rod ( The upper head 3 is rotatably coupled to the upper end of 1).

The lower head 2 first forms a hole in the ground, and the upper end of the hole formed by the upper head 3 forms a hole larger than the diameter of the lower head 2 by the lower head 2. do.

At this time, the cement hardening agent supplied to the inside of the main rod 1 through an external hose is sprayed into the hole through a nozzle formed in the lower head 2, and the cement solidifying agent supplied to the upper head 3 through another hose. The topical agent is sprayed at the upper end of the aperture.

However, this conventional cement hardening agent injection device connects each hose for supplying the cement hardening agent to the lower head 2 and the upper head 3, and the operator communicates with the operator of the crawler crane at a distance to Since the hose must be opened and closed, the work process is very inconvenient, and there is a problem in that a lot of work time is required.

The present invention is to solve the above problems, an automatic cement hardening agent injection device improved so that the operator of the crawler crane can conveniently control the supply amount of the cement hardening agent by remotely controlling the opening and closing of the moving discharge pipe configured with the addition. is aimed at providing

In addition, another object of the present invention is to provide an automatic cement solidifying agent injection device configured to automatically open and close the discharge pipe by forward and reverse rotation of the head, so that the work is more easily improved.

In the automatic cement hardening agent injection device according to the present invention, an auger device is installed in the crawler crane, a main rod is vertically coupled to the auger device, and a lower head and an upper head rotating and spraying the cement hardening agent are connected to the main rod. The auger device is coupled at intervals up and down, and a moving discharge pipe whose length can be adjusted by a plurality of fixing parts is fixed to the auger device, and the hoses on one side for supplying the cement solidifying agent by branching into two are the lower head and the upper head It is connected to the main rod communicating with, and the hose on the other side is connected to the moving discharge pipe, and a solenoid valve configured to be remotely opened and closed by the operator of the crawler crane is installed in the moving discharge pipe, and the upper head is It consists of a first screw bit and a second screw bit, and a plurality of discharge pipes communicating with the main rod are formed inside the second screw bit, and a ball valve opened and closed by forward and reverse rotation of the upper head is formed in the discharge pipe. characterized by being installed.

According to the automatic cement hardening agent injection device according to the present invention, by supplying the cement hardening agent sprayed from the lower head, the upper head, and the moving discharge pipe with one hose, a remote worker supplying the cement hardening agent can conveniently manage it. It has the effect of shortening the working time.

In addition, by branching one hose and spraying cement hardening agent in a 3-way structure, sufficient supply can be maintained even if one nozzle is clogged, and the supply of cement hardening agent can be conveniently controlled by remotely controlling the opening and closing of the moving discharge pipe. can be adjusted accordingly.

In addition, there is an advantage in that the spraying of the cement solidifying agent can be automatically adjusted by using a ball valve that is opened and closed by normal and reverse rotation of the upper head.

1 is a front view of a conventional ground excavation device and a cement solidifying agent injection device
Figure 2 is a ground excavation device installed with an automatic cement hardening agent injection device of the present invention
Figure 3 is a front view of the automatic cement solidifying agent injection device according to the present invention
Figure 4 is a partial enlarged view of the automatic cement hardening agent injection device according to the present invention
Figure 5 is a partially enlarged view showing the inside of the second screw bit according to the present invention
Figure 6 is a planar cross-sectional view of a rotating member and a rotating guide according to the present invention
7 is an operation diagram of a rotating member and a rotating guide according to the present invention;

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the automatic cement hardening agent injection device of the present invention is installed on a crawler crane to form a hole in the ground and at the same time inject the cement hardening agent into the hole. The lower head 20 for forming perforations by rotation is coupled to the lower side, and the upper end of the main rod 10 is formed larger than the diameter of the lower head 20 to form a large diameter perforation at the upper end of the perforation. The upper head 30 is coupled.

The lower head 20 and the upper head 30 form perforations by rotation and at the same time spray the cement solidifying agent supplied from the main rod 10 to the inside of the perforations through a plurality of nozzles formed on the outer circumferential surface. In the present invention, the moving discharge pipe 80 is additionally installed on the upper side of the upper head 30 so that the cement solidifying agent can be sprayed in a 3-way structure.

As shown in FIG. 3, the upper head 30 includes a first screw bit 31 coupled to the upper side and a second screw formed smaller than the diameter of the first screw bit 31 and coupled to the lower side at intervals. It is composed of a bit 32, and a flexible moving discharge pipe 80 is coupled to the auger device 90 installed in the crawler crane.

The moving discharge pipe 80 is fixed to the auger device 90 by a plurality of fixing parts 81, and by manipulating the fixing part 81, the length of the moving discharge pipe 80 heading downward can be adjusted arbitrarily. By being configured so that the moving discharge pipe 80 can be freely selected according to the situation.

In addition, since a solenoid valve 82 is installed in the moving discharge pipe 80, the operator of the crawler crane automatically operates the opening and closing of the moving discharge pipe 80 without the need to communicate with an outside worker, thereby increasing the cement solidifying agent. You can decide whether or not to spray.

Cement solidifying agent is supplied by one hose (not shown) from a supply device installed remotely, and is branched into two through a branch pipe, so that one hose is connected to the main rod 10, and the other hose is a moving discharge pipe. It is connected to (80).

Therefore, the present invention has the advantage that the work is easier and the work time can be shortened because the worker supplying the cement hardening agent from a distance opens and closes only one hose by communication with the operator of the crawler crane.

In addition, since the cement hardening agent can be sprayed at the same time in three places, the lower head 20, the upper head 30, and the moving discharge pipe 80, a sufficient amount of cement hardening agent can be supplied even if one nozzle is clogged. As a result, the work proceeds more smoothly, and the supply amount of the cement hardening agent can be arbitrarily adjusted by remote control of the moving discharge pipe 80.

The cement hardening agent supplied to the main rod 10 is injected from the lower side of the perforation through the lower head 20, and as shown in FIG. 4, the second screw bit 32 of the upper head 30 of the perforation sprayed from above

A plurality of discharge pipes 33 communicating with the inside of the main rod 10 are formed on the inside of the second screw bit 32, a ball valve 40 is installed in the discharge pipe 33, and the ball valve 40 is installed. The opening and closing plate 70 is coupled to the valve 40 by the rotation guide 60 to open and close the valve.

The lower side of the rotation guide 60 is connected to the ball valve 40, and the upper side of the rotation guide 60 protrudes to the upper side of the second screw bit 32, and the opening and closing plate 70 is coupled to the outer circumferential surface. The opening/closing plate 70 can be rotated 180° by forward rotation of the upper head 30 to open the ball valve 40 and returned by reverse rotation of the upper head 30 to close the ball valve 40. It is composed so that

As shown in FIG. 5, the ball valve 40 has a valve shaft 41 coupled to the lower side of the rotating member 50, and a shaft protrusion formed on the lower side of the rotating guide 60 on the upper side of the rotating member 50. When the opening and closing plate 70 and the rotation guide 60 rotate because 61 is coupled, the rotation member 50 and the ball valve 40 rotate simultaneously.

As shown in FIG. 6, a guide groove 51 forming an angle of 90 ° is formed on the upper side of the rotating member 50, and a guide block formed on the lower side of the rotation guide 60 inside the guide groove 51 ( 62) is inserted and adhered to the inner surface of one side.

When the second scuba bit 32 of the upper head 30 is rotated forward to form a hole, the opening and closing plate 70 is rotated counterclockwise by the pressure of the cement hardening agent and soil, and accordingly, FIG. 7 As shown in, the shaft protrusion 61 and the guide block 62 integrally formed on the rotation guide 60 rotate in the direction of the arrow.

The rotation guide 60 and the opening and closing plate 70 are idle when the guide block 62 rotates in the guide groove 51 formed at 90 °, so that the rotation member 50 remains stationary. When the guide block 62 is further rotated by 90 ° while being in close contact with the inner surface of the other side of the rotating member 50, the rotating block and the ball valve 40 are rotated by 90 ° and the discharge pipe 33 is opened.

When the upper head 30 is rotated in reverse and taken out from the hole, the opening/closing plate 70 is returned by the pressure of the cement hardening agent and the sand, so that the rotating member 50 and the ball valve 40 rotate to their original state and discharge pipe (33) is sealed.

The automatic cement hardening agent injection device of the present invention configured as described above supplies the cement hardening agent sprayed from the lower head 20 and the upper head 30 and the moving discharge pipe 80 to one hose, thereby supplying the cement hardening agent. Remote workers can conveniently manage it, which has the effect of reducing working time.

In addition, by branching one hose and spraying the cement hardening agent in a 3-way structure, it is possible to maintain a sufficient supply even if one nozzle is clogged, and by remotely controlling the opening and closing of the moving discharge pipe 80, the cement hardening agent The amount of supply can be conveniently adjusted.

In addition, by using the ball valve 40 that is opened and closed by forward and reverse rotation of the upper head 30, there is an advantage in that the injection of the cement solidifying agent can be automatically adjusted.

10: main rod 20: lower head
30: upper head 31: first screw bit
32: second screw bit 33: discharge pipe
40: ball valve 41: valve shaft
50: rotating member 51: guide groove
60: rotation guide 61: shaft projection
62: guide block 70: opening and closing plate
80: moving discharge pipe 81: fixed part
82: solenoid valve 90: auger device

Claims (4)

An auger device 90 is installed in the crawler crane, a main rod 10 is vertically coupled to the auger device 90, and a lower head 20 that rotates and sprays a cement solidifying agent to the main rod 10 And the upper head 30 is coupled at intervals up and down, and a moving discharge pipe 80 whose length can be adjusted by a plurality of fixing parts 81 is fixed to the auger device 90, and is branched into two The hose on one side for supplying the cement hardening agent is connected to the main rod 10 communicating with the lower head 20 and the upper head 30, and the hose on the other side is connected to the moving discharge pipe 80, A solenoid valve 82 configured to be remotely opened and closed by the operator of the crawler crane is installed in the moving discharge pipe 80,
The upper head 30 is composed of a first screw bit 31 and a second screw bit 32, and inside the second screw bit 32, a plurality of discharge pipes communicating with the main rod 10 ( 33) is formed, and a ball valve 40 opened and closed by forward and reverse rotation of the upper head 30 is installed in the discharge pipe 33. According to claim 1,
The valve shaft 41 formed in the ball valve 40 is fixed to the lower side of the rotating member 50, and the shaft protrusion 61 of the rotating guide 60 protrudes to the outside on the upper side of the rotating member 50. The outer circumferential surface of the rotation guide 60 is rotated by the pressure of the cement solidifying agent and soil during normal and reverse rotation of the upper head 30 to rotate and rotate the rotation member 50 and the ball valve 40. Cement solidifying agent automatic injection device, characterized in that the opening and closing plate 70 to return is coupled. According to claim 2,
A guide groove 51 is formed in the rotating member 50, a guide block 62 formed on the lower side of the rotation guide 60 is inserted into the guide groove 51, and the guide block 62 is a guide groove. When rotating in (51), it is idle, and when rotating in close contact with the inner surface of the guide groove (51), the rotating member (50) and the ball valve (40) are rotated. Device. delete

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