JP2560568Y2 - Garbage suction truck - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage suction truck for sucking and transporting garbage stored in a garbage storage container, for example.

[0002]

2. Description of the Related Art Conventionally, this kind of garbage suction truck is equipped with a suction device and a refuse storage tank for storing refuse sucked by the suction device, and is connected to the refuse storage tank by suction by the suction device. The garbage was stored in the garbage storage tank from the garbage suction pipe.

[0003] A discharge plate is slidably provided back and forth in the dust storage tank, and when the dust in the dust storage tank is full or a certain amount of dust is accumulated, a dust suction operation is temporarily performed. After stopping, the dust in the dust storage tank was compressed by sliding the discharge plate back and forth. Further, when discharging dust, the discharge plate is slid to the rear of the dust storage tank to discharge the dust from the rear end of the dust storage tank.

[0004]

However, in the above conventional apparatus, when compressing dust, the dust suction operation is first stopped, and after the compression is completed, the suction operation is started again. The reason is that during the dust suction operation,
When the discharge plate is slid rearward to compress dust, when the discharge plate reaches behind the inlet, the dust sucked from the inlet through the suction pipe is stored in front of the discharge plate. For this reason, the dust cannot be compressed by sliding the discharge plate backward while continuing the dust suction.

Therefore, in the conventional method in which the dust suction operation is stopped when the dust is compressed, the suction operation takes a long time due to the stop time, the collection efficiency is low, and the dust is compressed when a certain amount of dust is accumulated. In this case, there is a problem in that the suction stop and the restart are repeated many times, and the operation of the operator becomes complicated.

[0006]

Means for Solving the Problems The garbage suction truck of the present invention is:
A dust storage tank mounted on a vehicle frame, an openable / closable door that can be tilted upward to open and close a rear opening of the dust storage tank, and a suction pipe connected to a top front part of the dust storage tank;
Pushing means provided at the front of the garbage storage tank and for pushing the garbage sucked into the front of the garbage storage tank through the suction pipe to the rear of the garbage storage tank, and being capable of being housed in the opening / closing door. A preloading plate slidable in the front and rear directions in the dust storage tank by driving means interposed between the door and the opening / closing door, and a suction device for reducing the pressure of the dust storage tank are provided.

[0007]

When dust is sucked, the dust transported through the suction pipe is pushed to the rear of the dust container by the pushing means. At this time, the preloading plate is located at the front part of the refuse storage tank at the initial stage of refuse storage, and the refuse pushed by the pressing means is appropriately moved between the pressing means and the preloading plate by the action of the preloading plate. It is housed while compressed.

[0008]

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

First, before describing the dust suction vehicle of the present invention, the configuration of the entire dust suction transport system for sucking and transporting dust by the dust suction vehicle will be described.

FIG. 1 is a block diagram schematically showing a dust suction / transport system.

In FIG. 1, reference numeral 1 denotes a garbage storage container installed on a basement floor of an apartment house or the like. This garbage storage container 1
The lower end of the chute 2 is connected to the upper part of
One end of a connection pipe 3 is connected to a lower portion of the trash storage container 1. The other end of the connection pipe 3 is extended to a docking station 5 installed at an appropriate place on the ground, and is detachably attached to a suction pipe 30 provided in a garbage storage tank 20 of a garbage suction car C by an appropriate coupling. It has been done.

Reference numeral V1 in the drawing denotes an on-off valve provided at the lower end of the chute 2, V2 denotes an on-off valve provided at one end of the connecting pipe 3, and V3 introduces outside air into the dust container 1. This is an on-off valve provided in the introduction pipe 4.

As shown in FIG. 2, the dust suction truck C has a suction device 10 and a dust storage tank 20 for storing dust sucked by the suction device 10.

The suction device 10 has a suction passage 11 having one end connected to the dust container tank 20 and the other end open to the atmosphere.
And a water task rubber 12 provided in the suction passage 11.
And a blower 13 provided in the suction passage 11 closer to the atmosphere than the water scrubber 12, and a muffler 15 provided in the suction passage 11 closer to the atmosphere than the blower 13.

As shown in FIG. 3, the dust storage tank 20 is provided so as to be tiltable about a rear hinge 20a by a dump cylinder 21 interposed between the bottom of the dust storage tank 20 and the vehicle body frame. .

At the front of the refuse storage tank 20, there is provided pushing means 40 for pushing the refuse transported through the suction pipe 30 backward.

The pushing means 40 comprises a swinging pushing plate 41 and a rotatable rotating plate 43.

The pushing plate 41 is configured to be swingable about a pivot 42 by a swing cylinder (not shown). The rotating plate 43 is rotatable about a pivot 44 by a driving device such as a hydraulic motor (not shown). Then, by rotating the push plate 41 in accordance with the rotation of the rotary plate 43, the dust transported through the suction pipe 30 is crushed and compressed by the rotary plate 43, and then the dust storage tank 20 is pressed by the push plate 41. Push backwards.

An opening / closing door 22 is provided at the rear opening of the garbage storage tank 20 by an opening / closing cylinder 23.
2a is provided so as to be tiltable rearward, and the rear opening of the dust storage tank 20 is configured to be freely openable and closable by the tilting of the opening / closing door 22.

The opening / closing door 22 is provided with a preload plate 25 that can be accommodated in the opening / closing door 22. A cylinder 26 is continuously provided between the preload plate 25 and the opening / closing door 22. The cylinder 26 is extended in a state where the opening / closing door 22 closes a rear opening of the dust container 20, and thereby the preload plate 2 is extended.
5 is configured to be slidable in the refuse storage tank 20.

For example, a telescopic cylinder is used as the cylinder 26, and a hydraulic circuit (not shown) is configured so that the cylinder 26 contracts when a certain pressure is applied in the contracting direction. That is, when the pressing force for pressing the preload plate 25 rearward due to the compressive force of the dust pushed in by the pressing means 40 acts more than a certain amount, the cylinder 26 contracts, thereby moving the preload plate 25 rearward.

The suction pipe 30 is connected to the top surface of the dust storage tank 20 above the pushing means 40 and is provided so as to be rotatable around a vertical axis. Flexible tube 32, a tilting tube 33 connected to the flexible tube 32 and provided to be tiltable up and down, and a telescopic tube 35 connected to the tilting tube 33 and capable of expanding and contracting in the horizontal direction.
And a flexible tube 36 connected to the telescopic tube 35, and a distal end 37 connected to the flexible tube 36. Reference numeral 38 denotes a support member for supporting the distal end portion 37.

When a dust suction operation is performed by the dust suction truck C having the above-described structure, the dust suction truck C is brought to the docking station 5 and stopped. The entire pipe 30 is turned to the side of the vehicle, and the tilting pipe 33 is tilted and the telescopic pipe 35 is rotated.
The distal end 37 of the suction pipe 30 is connected to the docking station 5 by the expansion and contraction of the dust pipe, whereby the dust storage tank 20 and the dust storage container 1 are communicated via the connection pipe 3 and the suction pipe 30. Then, after closing the on-off valves V1 and V3 and opening the on-off valve V2, the blower 13 is operated to make the trash storage container 1, the connection pipe 3, the suction pipe 30, and the trash storage tank 20 into a negative pressure. By opening the valve V3 and introducing the outside air into the refuse storage container 1 from the introduction pipe 4, the refuse in the refuse storage container 1 is suction-transported to the trash storage tank 20.

Here, during the operation of sucking the dust into the dust storage tank 20 by the dust suction truck C, the dust transported through the suction pipe 30 is crushed by the rotary plate 43 and compressed. After that, the trash container 20 is pushed backward by the pushing plate 41. At this time, the preload plate 25
In the initial stage of dust storage, the dust is located at the front of the dust storage tank 20, and the dust pushed by the pushing means 40 is accommodated between the pushing means 40 and the preload plate 25.

When the pressing force for pushing the preload plate 25 rearward by the compressing force of the dust pushed into the space by the pushing means 40 acts more than a certain level, the force is reduced to a position where the acting force becomes less than the certain level. The cylinder 26 is retracted, and accordingly, the preload plate 25 moves backward by the retracted amount. As described above, the preloading plate 25 gradually moves rearward in accordance with the pushing of the dust by the pushing means 40, and as a result, the dust is stored in the dust storage tank 20 with a certain compression force, thereby efficiently compressing the dust. Can be.

That is, the dust is stored while being compressed in the dust storage tank 20 while the dust suction operation is continued.

When discharging the trash stored in the trash storage tank 20, first, the suction pipe 30 is operated to evacuate the opening / closing door 22 to the side of the trash storage tank 20. Thereafter, the preload plate 25 is housed in the opening / closing door 22, and in this state, the opening / closing door 22 is moved to the upper hinge 2 by the opening / closing cylinder 23.
The dust storage tank 20 is tilted upward around the center 2a to open the rear opening of the dust storage tank 20, and then the dust storage tank 20 is tilted about the rear hinge 20a by the dump cylinder 21 (see FIG. 3). Debris in 20 is discharged from the rear opening.

It should be noted that the dust suction truck of the present invention is not limited to sucking dust stored in the dust storage container 1, but can also suck dust directly from the tip of the suction pipe 30, for example.

[0029]

As described above, according to the present invention, the dust sucked into the front part of the dust storage tank via the suction pipe by the pushing means is pushed to the rear of the dust storage tank. When compressing dust, there is no need to stop the dust suction operation, the dust can be stored while compressing the dust while the smooth dust suction operation is continued, and the collection efficiency can be improved, The work operation is simple, and the dust can be efficiently compressed.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a dust suction transportation system using a dust suction vehicle according to the present invention.

FIG. 2 is a side view showing a configuration of the dust suction vehicle of the present invention.

FIG. 3 is a side view showing a state when dust is discharged by the dust suction vehicle of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Suction apparatus 20 Dust storage tank 22 Opening / closing door 25 Preload plate 26 Cylinder (drive means) 30 Suction pipe 40 Pushing means C Dust suction vehicle

Claims (1)

(57) [Scope of request for utility model registration] 1. A garbage storage tank mounted on a vehicle frame,
An opening / closing door that can be tilted upward to open and close the rear opening of the garbage storage tank, a suction pipe connected to a front part of the top of the garbage storage tank, and a suction pipe provided at a front part in the garbage storage tank. Pushing means for pushing the dust sucked into the front part of the dust container tank rearward in the dust tank, and driving means capable of being housed in the door and interposed between the door and the dust means. A dust suction truck comprising: a preload plate slidable in a front-rear direction in a storage tank; and a suction device for reducing the pressure of the dust storage tank.