JP2601529Y2 - Mixer car wash water recovery device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing water collecting device for a mixer truck, which collects the washing water when washing fresh concrete adhering to a flow guide or a chute in a concrete mixer truck.

[0002]

2. Description of the Related Art In a concrete mixer truck, a part of the fresh concrete adheres to a flow guide or a chute in a portion where the fresh concrete flows after the fresh concrete is discharged. The ready-mixed concrete starts to solidify quickly and needs to be rinsed with water.

[0003] The water from which the ready-mixed concrete has been washed out as described above is a pollution problem if it flows directly on the road or at a construction site, and it is obligatory to collect it because it is unsanitary.

For this reason, conventionally, a bucket is attached under a chute, and after the water having washed the chute is collected in the bucket, the bucket is returned to a mixing drum or discarded to a predetermined external sink. I have.

[0005]

However, the method of collecting washing water using a bucket as described above has the following problems.

[0006] 1) Since the bucket is mounted under the chute, the bucket hinders the operation of discharging the ready-mixed concrete, resulting in poor workability.

2) Since the bucket projects outward, there is a risk that the bucket may hit an operator or the bucket may collide with another object when the mixer car itself runs backward.

[0008] 3) If the vehicle is run with washing water stored in a bucket, there is a risk that the washing water will jump out of the outlet of the bucket.

4) When the water is discarded from the bucket, the bucket is removed and transported to a predetermined place, so that the weight is heavy and the operation is troublesome and difficult.

[0010] Therefore, an object of the present invention is to prevent the container for washing water collection from obstructing the discharge of ready-mixed concrete, prevent the container from projecting and colliding with workers or other objects, and prevent the container from running inside. It is an object of the present invention to provide a mixer vehicle washing water recovery device that can prevent water from jumping out and can easily perform drainage work from a container.

[0011]

Means for Solving the Problems In order to achieve the above object, the means of the present invention comprises a cover fixed at an arbitrary distance below the lowermost stepping plate, and a cover fixed below the cover. The tank comprises a rotatable tank-type water recovery container, a guide pipe for water guide connected to the water recovery container, and a hopper connected to the upper end of the guide pipe and facing the chute. The water recovery container is composed of a plate-shaped lid and a pair of brackets suspended on both sides of the lid, and the water recovery container has a vertical surface, side surfaces on both sides of the vertical surface, a horizontal top surface and a bottom surface, and a side opposite to the vertical surface. The upper surface is provided with an opening formed closer to the vertical surface than the center, and the curved surface is formed in a semicircular shape from substantially the center of the upper surface toward the bottom surface. And the upper side of the horizontal lid is The opening is opposed to the lower surface of the horizontal lid, and the both sides are rotatably pivotally attached to the bracket at a position eccentric to the vertical side from the center of gravity of the water recovery container. In addition, the lower end of the guide pipe penetrates the horizontal lid and is opposed to the opening.

In this case, a bearing is provided on the side surface of the lifting step plate, and the middle of an L-shaped guide pipe is inserted into the bearing so as to be rotatable in the horizontal direction, and the hopper is brought close to the chute while rotating the guide pipe. Or it is preferable to move to a remote position.

[0013]

The washing water that has washed the chute is collected from the hopper through the guide pipe into the water collection container through the opening. When the washing water is introduced into the water collecting container, the water collecting container rotates by an arbitrary angle while being supported at a pivot point with the bracket by the weight of the washing water, and at this time, the entrance of the opening is a horizontal lid portion of the cover. Close to the side and sealed by this.

When the water recovery container is manually rotated at the disposal place in the opposite direction to the above, the opening is separated from the horizontal lid, and the water inside can be discharged.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The washing water recovery apparatus shown in the embodiment of FIG. 1 has a water recovery container 1 having a wide and long opening 4 on its upper surface, a cover 2, a guide pipe 3 for guiding water, and a guide pipe 3
And a hopper 6 which is coupled to the upper end of the hopper 6 and faces the chute 5.

The concrete mixer car has a flow guide and a chute 5 for discharging the ready-mixed concrete at the end of the mixing drum, and further has a step plate 7 on the side of the vehicle body on which the worker moves up and down.

The cover 2 is fixed to the lower side of the lowermost elevating step plate 7 via U-shaped brackets 8 and 8.

The cover 2 is formed in a U-shaped cross section by a horizontal plate-like lid 9 made of a horizontal plate, and brackets 10, 10 extending downward at both ends of the horizontal lid 9.

Below the cover 2, a tank-type water recovery container 1 is provided.
The water recovery container 1 includes a vertical surface a, side surfaces b and b on both sides of the vertical surface a, a horizontal upper surface d and a lower surface c, and a vertical surface a.
And a curved surface 11 on the opposite side to form a box shape. Further, the upper surface d is provided with an opening 4 formed closer to the vertical surface a than the center, and the curved surface 11 is formed in a semicircular shape from substantially the center of the upper surface d toward the bottom surface c. The upper surface d of the horizontal lid 9 is fixed to the lower surface of the elevating step plate 7, the opening 4 is opposed to the lower surface of the horizontal lid 9, and the side surfaces b, b are collected with water. At the position eccentric to the vertical plane a from the position of the center of gravity 13 of the container, the container is rotatably pivoted to the brackets 10, 10. Further, the lower end of the guide pipe 3 penetrates the horizontal lid 9 and faces the opening 4.

More specifically, both side surfaces b, b of the water recovery container 1 are rotatably connected to brackets 10, 10 via a shaft 12.

The pivot point is provided at a position eccentric from the center of gravity 13 of the water recovery container 1 to the rear side on the left side in FIG.

The opening 4 of the water recovery container 1 is formed slightly rearward on the left side in FIGS. 1 and 2 from the line of the center of gravity 13.

When washing water is introduced into the water collecting container 1 as described later, the weight of the washing water causes the water collecting container 1 to be supported on the shaft 12 and to rotate around the shaft 12 as shown in FIG. Rotates clockwise at.

For this reason, the upper part of the rear end of the water recovery container 1 abuts on the lower surface of the horizontal lid 9 of the cover 2, and the opening 4 is sealed by the horizontal lid 9. The overflow of the washing water is prevented.

The guide pipe 3 comprises an L-shaped pipe body 3a and a rectangular box-shaped pipe 3b rotatably connected to the pipe body 3a.

The box-shaped pipe may be a cylindrical pipe.

The box-shaped pipe 3b is connected to the horizontal lid 9 of the cover 2.
The lower outlet of the pipe is opened to the opening 4, and the lower end of the pipe body 3 a is rotatably inserted into the inlet 3 c while facing the opening 4.

A bearing 14 composed of a U-shaped bracket is fixed to the side surface of the step plate 7 for raising and lowering. The middle of the pipe main body 3a is rotatably inserted into a hole 15 of the bearing 14 and is supported. It is stopped at 16.

A hopper 6 is connected to the upper end of the pipe main body 3a, and the entrance of the hopper 6 is arranged to face the lower part of the chute 5.

When the washing water is to be recovered, the hopper 6 is disposed below the chute 5 as shown in FIG. 1, and the pipe body 3a is connected to the bearing 1 so as not to be in the way when not in use.
4 and is moved to a position inside the vehicle body as indicated by the dotted line.

When the fresh concrete adhering to the flow guide and the chute 5 is washed, the washing water is drained to the hopper 6 and further led to the opening 4 of the water collecting container 1 through the pipe body 3a and the box-shaped pipe 3b. And collected in the water collection container 1.

The opening 4 is long and wide, so that water leakage can be prevented, and washing can be easily performed when the inside of the container 1 is washed later.

When the washing water is collected in the water collecting container 1,
With the weight of the washing water, the water recovery container 1 rotates clockwise at an arbitrary angle in FIG. 2 around the shaft 12, and at this time, the entrance of the opening 4 contacts the lower surface of the horizontal cover 9 contact,
Even if the mixer truck runs as it is, water in the water recovery container 1 does not flow out.

When the water in the water recovery container 1 is drained at the disposal place, the water recovery container 1 is manually rotated counterclockwise around the shaft 12 as shown by the dotted line, and the opening 4 is moved downward. Drain it towards.

FIG. 3 shows another embodiment of the present invention.

This is a modification of the guide pipe 3, which comprises a pipe body 3a and a bellows-type pipe 3d integrally connected to the pipe body 3a. The end of the bellows-type pipe 3 d is made to penetrate the step plate 7 and the cover 2, and is directly opened to the opening 4.

The pipe body 3a is rotatably supported by a bearing 14 via a support rod 3e. The operation and effect are the same as those of the embodiment of FIG.

[0039]

According to the present invention, the following effects are obtained.

A) Since the water recovery container is disposed below the elevating step plate via the cover, the water recovery container does not protrude to the outside, does not hinder the ascent and descent, and similarly, It does not become a hindrance during the draining operation and the recovery operation of the washing water, and it is prevented that the mixer vehicle collides with other objects even if the mixer vehicle runs backward.

B) When sewage such as washing water is collected in the water recovery container, the weight of the sewage causes the water recovery container to rotate about a pivot point with respect to the bracket, and the opening is formed on the horizontal lid of the cover. Since it is sealed, the water in the water recovery container is prevented from jumping out even while the mixer truck is running.

C) When the water in the water recovery container is to be discarded, the water recovery container can be simply rotated in the direction opposite to the rotation at the time of recovery at the disposal place, and it is not necessary to hold the water recovery container. The workability is improved.

D) Since the guide pipe is rotatably supported by the bearings, the guide pipe can be rotated when not in use and the hopper at the upper end thereof can be arranged at a position away from the chute. Sometimes it does not get in the way and can be prevented from colliding with other objects during running.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a washing water recovery device for a mixer truck according to an embodiment of the present invention.

FIG. 2 is a schematic longitudinal sectional front view of the washing water recovery device for the mixer truck of FIG. 1;

FIG. 3 is a schematic vertical front view of a washing water recovery device for a mixer truck according to another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water recovery container 2 Cover 3 Guide pipe 4 Opening 5 Chute 6 Hopper 7 Elevating step plate 9 Horizontal plate-shaped lid 10 Bracket 11 Curved surface 13 Center of gravity 14 Bearing a Vertical surface b Side surface c Bottom surface d Top surface

Claims (2)

(57) [Scope of request for utility model registration] 1. A cover fixed at an arbitrary interval below a lowermost stepping plate, a tank-type water recovery container rotatably disposed below the cover, and connected to the water recovery container. And a hopper coupled to the upper end of the guide pipe and facing the chute, wherein the cover is a horizontal plate-shaped lid and a pair of brackets suspended from both sides of the lid. The water recovery container is formed in a box shape with a vertical surface, side surfaces on both sides of the vertical surface, a horizontal upper surface and a bottom surface, and a curved surface opposite to the vertical surface. An opening formed near the vertical surface is provided, and the curved surface is formed in a semicircular shape from substantially the center of the upper surface toward the bottom surface. Fix it to the bottom side and place the opening above the horizontal lid At the position where the both side surfaces are eccentric to the vertical surface side from the center of gravity of the water recovery container and rotatably pivotally attached to the bracket, and the lower end of the guide pipe penetrates through the horizontal lid. A washing water recovery device for a mixer truck, wherein the cleaning water recovery device faces the opening. 2. A bearing is provided on a side surface of a lifting step plate, and an intermediate portion of an L-shaped guide pipe is inserted into the bearing so as to be rotatable in a horizontal direction. The washing water recovery device for a mixer truck according to claim 1, which is moved to a remote position.