JPS58498Y2 - Concrete mixer truck with wash sewage storage tank - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a concrete mixer truck equipped with an easy-to-carry cleaning sewage tank that accommodates cleaning sewage from the discharge chute of the concrete mixer truck and transports it to the base.

In general, in concrete mixer trucks, after the fresh concrete in the drum is discharged from the discharge chute at the pouring site, the fresh concrete adhering to the discharge chute is removed by washing with water before it is finished. There is a need.

Conventionally, the wastewater used to wash the discharge chute was either flushed away on the road or at the work site, or collected in a bucket, climbed up a step on the rear support of the concrete mixer truck, and was dumped into the drum from a hopper.

However, since environmental regulations have recently become more serious, it has become impossible to flush away the washed sewage on the roads or at work sites, and it has become more common to collect it in buckets and put it in drums to take home.

Carrying a bucket and loading it from the hopper into the drum was a dangerous and labor-intensive task as the bucket weighed over 20 KA and had to be climbed up narrow steps.

This idea was made in view of the above, and it provides an easy-to-carry washed sewage storage tank that can be stored on the rear side of the concrete mixer truck.
This makes it easy to store, take home, and dispose of washed wastewater.

This invention will be explained below with reference to the drawings.

The drawing shows an embodiment of this invention, in which 1 is a drum of a concrete mixer truck, 2 is a hollow concrete mixer, 3 is a discharge chute for fresh concrete discharged from the drum 1, 4 is a rear support, and 5 is a concrete mixer truck. mount, 6 is mount 5
A rear step protrudes and is fixed to the rear side of the rear step, and a leg break 6a is fixedly provided at the outer end of the rear step.

T is a pedestal provided on the upper surface of the step 6, which has a circular hole 7a in its center, and is formed into a storage portion into which the washed wastewater storage tank 10 can be fitted and stored.

Figures 3 to 5 are detailed views of the washed wastewater storage tank 10. The tank body 11 has a cylindrical upper half and a truncated conical shape that tapers downward. A circular 7-flange 12 having an opening at the bottom is welded and fixed thereto, and a flange plate 13 is welded and fixed to the upper end.

Several crosspieces 14 are fixed to the upper opening of the tank body 11 in the shape of a screen, and metal fittings 16.16 are attached to opposite sides of the upper end of the outer periphery of the tank body. Both ends of a semicircular handle 15 are bent and rotatably inserted and fixed into the hole.

A hinge 18 is attached to one end of the bottom circular flange 12 of the tank 11.
An opening/closing lid 19 having the same diameter is fixed via the opening/closing lid 19.

A connecting member 2 is provided on the lower surface of the opening/closing lid 19 opposite to the hinge 18.
A forked portion 23 formed at one end of the link 21 is fitted into the connecting member 20 and rotatably supported by the pin shaft 22, and the other end of the link 21 An eccentric roller 25 is fitted into the forked portion 24 and rotatably supported by the shaft 2T.

Lock handles 26, 26 are connected to pins 29 at both ends of the shaft 27.
, 29, and the eccentric roller 25 is also fixed to the shaft 21 with a pin 28. When the locking handle 26 is brought to the position shown by the two-dot chain line in FIG. The contour of the radial position faces the top surface of the bottom flange 12 of the tank body with a gap,
When the locking handle 26 is rotated to the position shown by the solid line, the outline of the minimum radius position of the biasing roller comes into contact with the upper surface of the bottom flange 12 and passes through the link 21 to the opening/closing lid 1.
9 is configured to press against an O-ring packing 30 provided on the lower surface of the bottom flange 12.

Reference numerals 31 and 32 denote baffle plates installed inside the tank body 11 so as to be inclined in opposite directions. Even if dirty water moves inside the tank, it is blocked by the baffle plates 31 and 32 and the tank opening is blocked. It is designed to prevent it from jumping out.

This invention has the above-mentioned configuration, and after discharge of fresh concrete from the drum 1 of the concrete mixer truck,
When washing the discharge chute 3 with water, a washed wastewater storage tank 10 stored in a pedestal T on the rear side of the mixer truck is taken out and suspended from the tip of the discharge chute 3 to receive wastewater.

(See Figure 1).

After washing with water, the sewage storage tank 10 still contains sewage.
from the drainage chute 3 and store it in the cradle 7 on the rear side of the concrete □ kisser truck.

The cleaning work of the discharge chute after discharging fresh concrete is completed with the above steps, and the concrete is ready! The J-Tomigisa vehicle returns to the base, but even if the vehicle shakes while traveling, baffle plates 31 and 32 are provided inside the sewage tank, so sewage will not spill out of the tank.

After returning to the base, stop the car at the designated location and open/close the lid 19 by removing the lock handle 26 at the bottom of the wastewater storage tank 10.
Open the tank and drain the waste water inside the tank.

As explained above, this invention is equipped with a wash sewage storage tank that is easy to carry and configured so that the bottom of the tank can be opened and closed, on the rear side of the mount of the concrete mixer truck. After the discharge chute has been washed, the wastewater is stored in the tank and taken back to the base, so there is no need to dump the washed wastewater onto the road or work site as in the past, or alternatively, it is possible to collect the washed wastewater in a bucket. This eliminates the dangerous work of climbing up the steps on the rear support of the mixer truck to dump wastewater from the hopper into the drum, and also allows the bottom of the wastewater storage tank to be easily opened and closed, so that it can be easily accessed after being brought back to the base. Easily drains sand, gravel, cement, etc. that have settled at the bottom of the sewage storage tank.

Furthermore, the sewage storage tank is stored at the step position on the rear side of the vehicle, and the upper surface of the tank opening is equipped with a crosspiece, so it can be used as a step when stored in a concrete mixer truck. It has its advantages.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a side view of a concrete mixer truck using a washed sewage storage tank according to the invention, and Fig. 2 shows a state in which the washed sewage storage tank is stored. A perspective view, FIG. 3 is a vertical sectional view of the washed wastewater storage tank, FIG. 4 is a same-day view, and FIG. 5 is a side view of the same. 10... Washing wastewater storage tank, 12...
・Bottom flange, 19...Opening/closing lid.

Claims (1)

[Scope of utility model registration request] A portable cleaning sewage storage tank is provided, which has a cage-like crosspiece on the upper surface of the opening of the tank body, has a baffle plate inside to prevent the sewage from swinging, and is configured so that the bottom of the tank can be opened and closed. A concrete mixer truck, characterized in that a storage part for storing the washed sewage water storage tank is provided on a frame, so that the container can be used as a step of the concrete mixer truck in a state where the washed sewage water storage tank is stored.