JPS599853Y2 - Truck mixer sewage storage device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a sewage storage device for accommodating sewage during chute washing of a truck mixer.

Generally, fresh concrete is discharged from a truck mixer using a chute, but since fresh concrete has low fluidity, some of the fresh concrete remains inside the chute after the discharge operation is completed.

Conventionally, in order to remove the fresh concrete remaining in this chute, a bucket was placed at the tip of the chute and the chute was washed with water, and the waste water collected in the bucket was manually poured from the hopper into the drum. Treatment of such wastewater is troublesome, and since the hopper is located at a high location, it is dangerous and time-consuming, and the efficiency of round-trip transport using truck mixers is reduced.

In addition, when returning to the ready-mixed concrete production plant and putting the next ready-mixed concrete into the drum, it is easy to do so without discarding the sewage that was in the drum. This is not desirable in order to obtain fresh concrete, and it is better not to mix sewage into the next ready-mixed concrete.

This idea was proposed in view of the above circumstances, and it makes it possible for truck mixers to easily and efficiently complete chute washing work without the need to treat wastewater from chute washing at the ready-mixed concrete pouring site. The purpose is to obtain a sewage storage device.

An embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a drum for storing fresh concrete, which is rotatably supported by front and rear frames 2 and 3, and is rotationally driven by a hydraulic motor 4.

Further, 5 is a hopper and 6 is a movable seat.

A vertical shaft 8 is provided at the bottom of the chute body 7 of this movable chute 6.
The upper end is pivotally connected to a shaft 9, one end of a telescopic rod 10 is pivotally connected near the tip of the chute body 7, and the lower end of the vertical shaft 8 and the other end of the telescopic rod 10 are connected by a pin 11. has been done.

In this embodiment, the vertical shaft 8 includes a cylindrical portion 8a, a disk portion 8b fixed to the upper end surface of the cylindrical portion 8a, and a diagonal member 8C fixed on the disk portion 8b. It is shaped.

And on the rear frame 3 there is a bracket 1 that extends backwards.
2 is fixed, and this racket 12 has a vertical guide tube 12a fixed to its tip, and this guide tube 12a.
flange 12b fixed to the upper end of a.

The cylindrical portion 8a of the vertical shaft 8 is connected to the guide tube 12.
At the same time, the disc portion 8b of the vertical shaft 8 is supported in contact with the flange 12b, and the chute body 7 can thus rotate around the cylindrical portion 8a of the vertical shaft 8.
As shown by the two-dot chain line in Fig. 2,
The tip of the chute body 7 can rise higher than the upper part of the chute.

Further, a sewage storage container 14 is removably installed on the chassis 13 behind the rear frame 3, and this sewage storage container 1
4 and the bottom surface of the upper part of the chute body 7, both ends of a hose 15 are connected to each other.

Next, the work when washing the chute with water will be explained.

The discharge of ready-mixed concrete is normally carried out with the tip of the chute body 7 facing backwards with respect to the truck mixer, but after completion of discharge, it is rotated around the vertical shaft 8, turned sideways as shown in Fig. 2, and then The chute body 7 is rotated around the point 9, and its tip is raised high as shown by the two-dot chain line.

Then, water is flowed from the tip side to wash away the fresh concrete in the chute, and the wastewater flows into the wastewater storage container 14 through the hose 15.

The vehicle then travels as it is to a conchnaut manufacturing plant, where the sewage storage container 14 is removed and the sewage is disposed of.

Note that the above chute cleaning work is performed with the tip of the chute body raised, that is, when the truck mixer is running, so make sure to use a chute that can be operated from the driver's seat to pour water into the chute. If a water washing device is provided, the chute can be washed while the vehicle is running, further saving time.

As explained above, in the present invention, a sewage storage container is provided on the vehicle chassis, and this sewage storage container is connected to the bottom of the upper part of the chute body with a hose. There is no need for troublesome work such as pouring water from a hopper into a drum, and there is no need to treat wastewater at the pouring site, making it possible to easily and efficiently complete chute washing.

Since one end of the hose is connected to the top of the chute body, there is no need to remove this hose even when discharging fresh concrete, and the hose can be attached at all times, and it can be removed each time when cleaning the chute. It does not require complicated work such as

Furthermore, since the hose is attached to the top of the chute body and the top of the chute body has a short movement distance when the chute rotates, the connecting position N of the wastewater storage container and the hose to the chute (i.e., the top of the chute body ) can be shortened, and the margin for accommodating the hose chute movement is small, so a short hose is sufficient.

In addition, unlike in the past, the quality of the ready-mixed concrete does not deteriorate due to sewage being mixed with the ready-mixed concrete to be transported next.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 1 is a side view of a track mixer, and FIG. 2 is a rear view of the track mixer. 6...Movable chute, 7...Chute body, 13...Vehicle chassis, 14...Sewage storage container, 15...Hose.

Claims (1)

[Scope of utility model registration request] In a truck mixer equipped with a movable chute that can rotate the chute body and raise its tip higher than the top of the chute body, a sewage storage container is provided on the chassis, and one end of the hose is connected to the bottom of the top of the chute body. A sewage storage device for a truck mixer, characterized in that the other end is connected to the sewage storage container.