KR20000021955A - Washer of transporting pipe of concrete pump car - Google Patents

Abstract

PURPOSE: A washer is provided to improve a washing efficiency through the reduction of a labor force by washing as venting the concrete remaining inside after finishing a construction of concrete. CONSTITUTION: A rod(6a) of a first cylinder(6) for working and a through hole(10,11) for supplying an air pressure to a piston(6b) are formed to be communicated with each other to an axial direction. While washing concrete remaining in a swing pipe(4) and a transporting pipe, a member(12) for delivering a pressure for supplying a specific pressure to the through hole(10,11) is established to be installed and taken off so a ball(SB) of a sponge positioned at an entrance of the swing pipe(4) as to be moved to the swing pipe(4) and to the inside of the transportation pipe with a high speed by inputting through an entrance of the first cylinder(6) for working. Herein, one end of the member(12) for delivering the pressure is connected to a water pump for venting a specific water pressure or to an air compressor for venting a specific air pressure, and the other end of the member(12) is connected to the through hole(10) for supplying the air pressure in a washing chamber(9) to be communicated. When washing in the washing chamber, a specific value of the air pressure vented from the air compressor moves the ball(SB) through the through hole(10,11) along the swing pipe(4) and the inside of the transporting pipe at a high speed. And the residual concrete is vented outside through the end of the transporting pipe.

Description

Transport pipe cleaning device for concrete pump car

The present invention relates to a transport pipe cleaning device for a concrete pump car, and more specifically, to transport the remaining concrete (waste concrete) remaining in the transport pipe and the swing pipe after finishing the concrete pouring work. A transport pipe cleaning apparatus for a concrete pump car that can be discharged through a pipe end.

As shown in Figure 2, the pumping device of a typical concrete pump car, the concrete is supplied from the ready-mixed concrete, etc., the agitator blade (2) that is installed rotatably inside to prevent the solidification and separation of concrete during operation (AGITATOR) Hopper 1 having a blade, a first cylinder 6 for work axially connected to the first hydraulic cylinder 5 and interlocked when the first hydraulic cylinder 5 is driven, and the aforementioned first hydraulic cylinder 5. The second hydraulic cylinder (7) axially connected to the second hydraulic cylinder (7), which is formed to operate alternately with the second cylinder (8) and the swing cylinder (3) for operation when the second hydraulic cylinder (7) is driven. It is formed so as to selectively communicate with the aforementioned first and second cylinders (6, 8) for work, and has a swing pipe (4) connected to allow the concrete to be discharged to the working place through the transport pipe.

Reference numeral 9 is a washing chamber (WASHING CHAMBER) formed to wash the interior of the first cylinder (6) and the second working cylinder (8) for work after the concrete pouring work.

Therefore, in the case of washing the residual concrete remaining inside the transport pipe (not shown) connected to the swing pipe 4 described above after finishing the predetermined pouring operation using the pumping device as described above, the swing pipe After separating the transport pipe from (4), insert the ball of sponge into the transport pipe inlet side and use the water pressure discharged from the high pressure water pump or the air pressure of the predetermined pressure discharged from the air compressor. By moving the ball at high speed, the residual concrete is discharged from the pipe to be cleaned.

However, after the concrete is poured, the concrete remains in the swing pipe 4 to separate the swing pipe 4 from the above-described transport pipe and then separately wash the inside of the swing pipe 4. The workability is poor.

Therefore, an object of the present invention, by washing the residual concrete remaining in the transport pipe and the swing pipe connected to the swing pipe when the residual concrete remaining in the transport pipe and the swing pipe after finishing the concrete pouring operation by washing It is to provide a transport pipe cleaning device for concrete pump cars, which improves workability by shortening work man-hours and enhances product competitiveness.

1 is an excerpt of the main portion of the transport pipe cleaning device of the concrete pump car according to an embodiment of the present invention,

2 is an excerpt of an essential part of a pumping device of a conventional concrete pump car.

* Explanation of symbols used in the main part of the drawing

1: hopper

2: agitator blade

3: swing cylinder

4: swingpipe

5: 1st hydraulic cylinder

6: first cylinder for work

6a: loading

6b: piston

7: 2nd hydraulic cylinder

8: second cylinder for operation

9: washing chamber

10,11: through hole

12: member for pressure transmission

SB: Ball

The object of the present invention described above is a hopper which is supplied with concrete, a working cylinder which is axially connected to a plurality of hydraulic cylinders installed to operate alternately, and which is interlocked when the hydraulic cylinder is driven, and is selectively selected to the working cylinder when driving a swing cylinder. A transport pipe cleaning apparatus for a concrete pump car having a swing pipe connected to communicate with the device, comprising: a through hole formed in axial communication with a rod and a piston of the working cylinder; A pressure transmission member having one end connected to the pressure supply source and the other end detachably connected to communicate with the through hole to supply a predetermined pressure to the through hole when washing residual concrete remaining in the swing pipe and the transport pipe; When the swing pipe and the inside of the transport pipe is washed inside the working cylinder, it is moved along the inside of the swing pipe and the transport pipe by a predetermined pressure supplied to the through-hole through the pressure transfer member from the pressure supply source It is achieved by providing a transport pipe cleaning device for a concrete pump car characterized in that it further comprises a washing ball to be washed.

According to a preferred embodiment, the pressure transmission member is detachably connected to communicate with the through hole in the washing chamber formed to wash the working cylinder.

According to a preferred embodiment, the pressure supply source uses air pressure by an air compressor or water pressure by a water pump.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which is not intended to limit the technical scope of the present invention.

The concrete is supplied from the ready-mixed concrete, and the hopper 1 having an agitator blade 2 that is rotatably mounted therein to prevent solidification and separation of concrete during operation, and to the first hydraulic cylinder 5 in the axial direction. In the axial direction to the first hydraulic cylinder (6) for working and connected to the first hydraulic cylinder (5) and the second hydraulic cylinder (7) installed to be driven alternately with the first hydraulic cylinder (5). The second cylinder 8 for work linked to the second hydraulic cylinder 7 and interlocked with the swing cylinder 3 so as to discharge the concrete in the hopper 1 to the work place. The swing pipe 4 connected to the first and second cylinders 6 and 8 selectively communicates with it, and the washing chamber formed to wash the interior of the above-described working first and second cylinders 6 and 8 ( 9) is applied in the same manner as shown in FIG. Since a detailed description thereof is omitted, and that overlap the numeral was the same title.

Therefore, according to a preferred embodiment of the present invention, as shown in Figure 1, through holes 10 and 11 for supplying air pressure to the rod 6a and the piston 6b of the above-described working first cylinder 6 ) Is formed in axial communication (at this time, a through hole for supplying air pressure is also formed in the rod and piston of the second cylinder 8 for work), and the residual concrete remaining inside the swing pipe 4 and the transport pipe (not shown) When washing, it is introduced through the inlet side of the first working cylinder 6 to move the ball SB of the sponge located at the inlet side of the swing pipe 4 to move the swing pipe 4 and the inside of the transport pipe at high speed. A pressure transmission member 12 for supplying a predetermined pressure to the through holes 10 and 11 is detachably installed.

At this time, one end of the pressure transmission member 12 is connected to an air compressor for discharging air pressure of a predetermined pressure or a water pump for discharging a water pressure of a predetermined pressure, and the other end of the pressure transmission member 12 is the washing chamber 9. It is detachably connected to communicate with the air pressure supply through-hole 10 in the interior of the.

Referring to the method of using a transport pipe cleaning device for a concrete pump car according to an embodiment of the present invention configured as described above are as follows.

In the case of washing the remaining concrete remaining in the transport pipe not shown in communication with the swing pipe 4 after finishing the concrete pouring work, the first hydraulic cylinder (5) described above work for interlocking driving With the piston 6b of the cylinder 6 contracted so as to be located inside the washing chamber 9, the ball SB of the sponge is inserted into the inlet side of the first working cylinder 6 (imaginary in FIG. 1). The ball SB is positioned at the inlet side of the swing pipe 4 due to the expansion of the working first cylinder 6 which is interlocked when the first hydraulic cylinder 5 is extended.

At this time, an air compressor or the like is provided in the through hole 10 formed in the rod 6a so as to communicate with the through hole 11 formed in the piston 6b of the working first cylinder 6 in the washing chamber 9. As the pressure transmission member 12 connected to the air pressure source is engaged, air pressure of a predetermined pressure discharged from the air compressor passes through the through holes 10 and 11 to move the ball SB to the swing pipe 4. And high velocity along the inside of the pipeline. Because of this, the residual concrete remaining in these in the state in which the swing pipe 4 and the transport pipe are connected is discharged to the outside through the transport pipe end by the high speed movement of the ball (SB), so that it can be washed.

Then, when the operation for discharging the remaining concrete remaining in the swing pipe 4 and the transport pipe is finished, the above-described pressure transfer member 12 for working inside the washing chamber 9, the first cylinder (6) By separating from the rod 6a, it is possible to perform the original function of the working first cylinder 6.

As described above, according to a preferred embodiment, when the residual concrete remaining in the transport pipe and the swing pipe after washing the concrete pouring operation to discharge the residual concrete remaining in these inside the transport pipe connected to the swing pipe By doing so, the workmanship can be improved by shortening the labor time, and the competitiveness of the equipment can be improved.

Claims (3)

A hopper receiving concrete, a working cylinder axially connected to a plurality of hydraulic cylinders installed to operate alternately, a working cylinder interlocked when the hydraulic cylinder is driven, and a swing pipe connected to selectively communicate with the working cylinder when the swing cylinder is driven. In the transport pipe cleaning apparatus for a concrete pump car provided: A through-hole formed in axial communication with the rod and the piston of the working cylinder; A pressure transmission member having one end connected to the pressure supply source and the other end detachably connected to communicate with the through hole to supply a predetermined pressure to the through hole when washing residual concrete remaining in the swing pipe and the transport pipe; And When the swing pipe and the inside of the transport pipe is washed inside the working cylinder, it is moved along the inside of the swing pipe and the transport pipe by a predetermined pressure supplied to the through-hole through the pressure transfer member from the pressure supply source Transport pipe cleaning device for a concrete pump car, characterized in that further comprising a washing ball to be washed. The apparatus of claim 1, wherein the pressure transmission member is detachably connected to communicate with the through hole in a washing chamber formed to wash the working cylinder. The apparatus of claim 1, wherein the pressure supply source uses air pressure by an air compressor or water pressure by a water pump.