JP2793465B2 - Garbage suction transport 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 garbage storage container storing garbage, in which the pressure inside the garbage storage container is reduced, and then secondary air is introduced into the garbage storage container. And a garbage suction transport device.

[0002]

2. Description of the Related Art Conventionally, as this kind of garbage suction and transport device, a garbage suction vehicle is connected to a garbage storage container installed in an apartment house or the like via a garbage transport pipe, and a discharge gate of the garbage storage container is opened. After reducing the pressure of the trash storage container to a predetermined negative pressure value by a suction device of a trash suction vehicle, by introducing secondary air through the secondary valve into the negatively-charged trash storage container, The refuse in the refuse storage container is suction-transported to the refuse storage tank of the refuse suction truck via the refuse transport pipe.

[0003] In the above-described dust suction transportation, a dust compression operation of compressing dust by a discharge plate provided in the dust storage tank when a predetermined amount of dust is stored in the dust storage tank of the dust suction truck. , The garbage is efficiently stored in the garbage storage tank.

[0004]

In the prior art, there has been a demand for efficiently performing a dust compressing operation at the time of dust suction and transportation to achieve smooth dust suction and transport.

In the present invention, attention is paid to the fact that the backwashing operation is performed when the pressure difference between the inside of the garbage storage tank and the suction device side exceeds a certain level during the dust suction transportation, and this backwashing operation is performed. It is an object of the present invention to provide a dust suction / transport device that sets the timing of a dust compression operation based on the dust and smoothly stores the dust in a dust storage tank.

[0006]

According to the present invention, there is provided a garbage storage device for storing garbage, a garbage storage tank mounted on a garbage suction truck and having a discharge plate therein, and a garbage storage tank. A suction pipe connected to and detachable from a docking station connected to a discharge port of the trash storage container through a trash transport pipe, a suction device for reducing the pressure of the trash storage tank and the trash storage container, and the suction pipe. In addition to controlling the operation, when the garbage storage tank and the garbage storage container reach a predetermined negative pressure value, secondary air is introduced into the garbage storage container, and the garbage in the garbage storage container is suction-transported to the garbage storage tank. In the dust suction and transport device provided with a control device, the control device, during the dust suction and transport, when the difference between the pressure in the dust storage tank and the pressure on the suction device side is more than a certain, A backwash operation is performed to remove dust present around the connection between the suction pipe and the dust storage tank, and when the backwash operation is set twice consecutively, the second backwash operation ends. After that, the dust compression operation is performed by the discharge plate, and the discharge plate compresses the dust in the dust storage tank.

[0007]

When the difference between the pressure in the dust storage tank and the pressure on the suction device side is equal to or greater than a predetermined value during the dust suction transport, the control device removes dust present around the connection between the suction pipe and the dust storage tank. When the backwashing operation is set twice in succession, and the second backwashing operation is completed, the dust removal operation is performed by the discharge plate, and the backwash operation is performed by the discharge plate. By compressing the refuse in the refuse storage tank, the transition to the refuse compression operation is automatically and smoothly performed according to the situation during the refuse suction transport.

[0008]

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

FIG. 1 shows a schematic overall configuration of a dust suction / transport device according to the present invention.

The garbage suction transport device temporarily stores garbage discharged from home in a garbage storage container (hereinafter referred to as a vessel) Tm, and stores the stored garbage by a suction device 30 provided in a garbage suction truck C. It is configured to be accommodated in the dust container 40 of the suction truck C.

In the vessel Tm, an opening 11 is formed on the top surface, and the lower end of a chute Am vertically arranged over each floor of the building is connected to the opening 11. The chute Am is provided with an input port Bm at a required floor.

The opening 11 is provided with a closing gate Im for opening and closing the opening 11, and the closing gate Im is opened and closed by the expansion and contraction of the air cylinder 12. Also,
A detector (not shown) such as a limit switch for detecting opening and closing of the closing gate Im is provided near the closing gate Im.

A discharge port 13 is formed at a lower portion of the side wall of the vessel Tm. The discharge port 13 is connected to a garbage transport pipe 15 via a connecting member 14 formed in a funnel shape. The trash transport pipe 15 near the discharge port 13 is provided with a discharge gate Em for opening and closing the trash transport pipe 15, and the discharge gate Em is opened and closed by the expansion and contraction of the air cylinder 16. A detector (not shown) such as a limit switch for detecting opening and closing of the discharge gate Em is provided near the discharge gate Em.

A secondary air inlet 20 is formed below the side wall of the vessel Tm. This secondary air inlet 2
0 is connected to one end of the introduction pipe 21.
Is arranged so that outside air can be supplied into the vessel Tm. The introduction pipe 21 is provided with a secondary valve Vm for opening and closing the introduction pipe 21, and the secondary valve Vm is opened and closed by expansion and contraction of the air cylinder 22. A detector (not shown) such as a limit switch for detecting opening and closing of the secondary valve Vm is provided near the secondary valve Vm.

The garbage transport pipe 15 extends to the docking station 60, and is detachably connected to a suction pipe 50 extending from the garbage suction truck C by a coupling 61.

The air cylinders 12, 16,
Reference numeral 22 denotes an air hose (not shown) connected to an air source (not shown) including a compressor tank and the like provided on the dust suction truck C via the docking station 60. Note that the air source may be provided on the vessel Tm side.

FIG. 2 shows the configuration of the dust suction vehicle.

The dust suction vehicle C has a suction device 30 and a dust storage tank 40 for storing dust sucked by the suction device 30.

As shown in FIG. 3, the suction device 30 includes a suction passage 31 having one end connected to the dust container tank 40 and the other end open to the atmosphere, and a water scrubber 32 provided in the suction passage 31. A blower 33 provided in the suction passage 31 closer to the atmosphere than the war task rubber 32, and a muffler 35 provided in the suction passage 31 closer to the atmosphere than the blower 33.

The blower 33 is operated in accordance with the engine speed by driving the engine of the dust suction vehicle C. The dust storage tank 40 is operated by the operation of the blower 33.
And the vessel Tm is made to have a negative pressure.

An open pipe 39 having an open end is connected to the suction passage 31 from the water scrubber 32 to the dust storage tank 40 via an atmosphere release valve 34.

The war task rubber 32 and the blower 33
Is provided with a pressure sensor 36 for detecting a negative pressure value by the blower 33.

Further, the blower 33 in the suction passage 31
A suction pipe and a discharge side are connected to a bypass pipe 37 via a blower unload valve 38. By controlling the opening and closing of the blower unload valve 38, a negative pressure value is maintained at a predetermined level during suction transportation described later. Have been like.

As shown in FIG. 2, the suction tube 50 has a base end connected to an inlet 45 formed at the top and front of the refuse storage tank 40, and is provided rotatably about a vertical axis. A swivel tube 51, a flexible tube 52 connected to the swivel tube 51, a tilt tube 53 connected to the flexible tube 52 and provided to be tiltable up and down, and a horizontal direction connected to the tilt tube 53 and connected to the tilt tube 53 Telescopic tube 55 which is telescopically movable, a flexible tube 56 connected to the telescopic tube 55, and a distal end 5 connected to the flexible tube 56
7

The suction tube 50 thus configured moves the dust suction truck C to the docking station 60 and stops during the dust suction transportation, so that the swivel pipe 51 swings, the up-and-down pipe 53 moves up and down. The distal end 57 of the suction pipe 50 can be easily connected to the docking station 60 by the expansion and contraction of the expansion and contraction pipe 55, so that the waste storage tank 40 and the vessel T can be connected via the waste transport pipe 15.
and m.

The refuse storage tank 40 is configured to be openable and closable by an opening / closing door 41 whose rear end opening opens rearward with the upper end edge as a center. The opening / closing door 41 has the suction tube 50
The supporting member 41a for supporting the front end portion 57 is provided.

A discharge plate 42 is slidably disposed in the dust storage tank 40 in the front-rear direction.

The discharge plate 42 has two points with a front dust suction position X1 indicated by a solid line in FIG. 2 by a telescopic cylinder 43 connected between the front surface of the discharge plate 42 and the front wall 40a of the dust storage tank 40. It can slide between the discharge position X2 at the rear indicated by the chain line.

The discharge plate 42 is provided at the base end of the suction tube 50,
It is composed of a chute portion 42a for guiding dust sucked into the dust storage tank 40 through the inlet 45 in combination with inertia force by suction, and a dust compression portion 42b. The chute section 42
By arranging the discharge plate 42 at a position where “a” is continuous with the base end of the suction pipe 50 via the introduction port 45, that is, at the dust suction position X 1, the dust sucked through the suction pipe 50 is removed by the chute 42 a. It is designed to fly behind the trash storage tank 40.

The introduction port 4 of the refuse storage tank 40
In the vicinity of 5, a suction port 46 is formed as shown in FIG. The suction port 46 communicates with the suction passage 31 through suction ports 47 and 48 formed at the front of the dust container 40, respectively. The suction ports 46, 47 and 48 are operated by the blower 33. Then, the air in the vessel Tm is sucked through the inlet 45, the suction pipe 50, and the dust transport pipe 15, whereby the pressure in the vessel Tm and the dust storage tank 40 is reduced.

The suction port 46 is provided with a filter 49 such as a punching metal so that dust sucked into the dust container tank 40 during suction does not enter the suction passage 31 through the suction port 46. .

Reference numeral 40b in FIG. 4 denotes a cover for forming a suction passage on the dust storage tank 40 side between the suction port 46 and the suction passage 31.

A control device 70 is provided in the dust suction vehicle C.

The control device 70 receives an operation signal from each operation switch provided in an operation device (not shown) and receives detection signals from the detectors and the pressure sensor 36 provided in the vessel Tm (not shown). It is input via a signal cable, and based on these detection signals and the like, controls the opening / closing of the input gate Im, the discharge gate Em, and the secondary valve Vm of the vessel Tm, and sequentially transfers the debris in the vessel Tm to the debris storage tank 40. It is configured to transport by suction.

In the control device 70, a detection signal from a pressure sensor 71 for detecting the pressure in the dust container tank 40 is input.
When the pressure difference from the detection signal from the sensor becomes equal to or more than a predetermined value, it is determined that dust is accumulated around the suction port 46, and the backwashing operation is performed.

The backwashing operation is performed by reducing the pressure of the trash container 40 and then opening the air release valve 34 to allow the outside air from the open pipe 39 to pass through the suction ports 48, 47, and 46 to store the trash. The suction port 46 is introduced into the tank 40.
The paper, tape, etc. attached to the filter 49 are peeled off, dusts around the suction port 46 are removed, and if dusts are accumulated in the suction pipe 50, the dusts are returned to the docking station 60 side. Operation.

The controller 70 performs a dust compression operation when the backwash operation is performed twice consecutively during the dust suction and transport.

The dust compression operation is an operation of sliding the discharge plate 42 from the position X1 to the rear of the dust storage tank 40 to move the dust in the dust storage tank 40 rearward on the front surface of the discharge plate 42 and compressing the same. When performing this dust compression operation,
Since the backwashing operation is performed prior to this, there is no dust in the suction pipe 50, and when the discharge plate 42 moves backward, the dust falls from the suction pipe 50 and the dust is deposited on the back surface of the discharge plate 42. Never turn.

Next, the operation of the dust suction / transport apparatus configured as described above during dust suction / transport will be described with reference to FIG.

In carrying out the dust suction transportation, first, the dust suction truck C is brought to the docking station 60 and stopped, and then the distal end portion 57 of the suction pipe 50 is moved to the docking station via the control device 70 by an operation switch. Connect to 60.

In steps S1 and S2, the air release valve 34 and the blower unload valve 38 are closed, and the discharge gate Em and the input gate Im are closed. At this time, the secondary valve is closed. Thereafter, the blower 33 is operated to reduce the pressure in the vessel Tm and the inside of the dust storage chamber 40 to a predetermined negative pressure value.

Next, if the predetermined negative pressure value is reached in step S3, it is determined in step S4 whether or not the backwash flag is set. If the backwash flag is set, the process proceeds to step S9, and If the washing flag has not been set, the process proceeds to step S5, and normal dust suction and transport is started.

This dust suction / transport operation is performed by opening the secondary valve Vm to introduce the introduction pipe 21 into the negative pressure vessel Tm.
Then, outside air is introduced from above, and the dust in the vessel Tm is sucked and transported to the dust storage tank 40. Then, at the time of this dust suction transportation, in step S6, the pressure in the dust storage tank 40 and the pressure of the suction device 30 are detected by the pressure sensors 36 and 71, and it is determined whether or not the pressure difference between them is equal to or more than a certain value. If it is more than a certain value, step S7
To set the backwash flag. Thereafter, the dust suction transportation is ended in step S8, and the process returns to step S3.

The backwash operation is performed in steps S9 and S10.
Resets the backwash flag with the air release valve 34
Is released, the above-described operation is performed. After this,
In step S11, a predetermined negative pressure value (for example, about 2000 mmA
If it falls to q), the process proceeds to step S12. Step S1
At 2, it is determined whether or not the backwash operation has been performed twice. If not, the air release valve 34 is closed at step S13 and the process returns to step S3.

If the backwash operation has been performed twice in step S12, the discharge plate 42 is set in step S14.
Performs the dust compression operation described above.

When the dust compressing operation is completed, it is determined in step S15 whether or not the dust compressing operation has been performed, for example, five times (this number is set as needed according to the capacity of the dust storing tank 40). If there is, it is determined that the dust storage tank 40 is full of dust, and the dust suction transport ends in step S16. If less than 5 times, step S
3 and the above-described operation is performed.

FIG. 6 shows an example of the flow described above. In this example, first, a backwashing operation is performed in AB, and when this backwashing operation is completed, a dust suction and transport operation is performed in BC. However, when the backwash flag is set during the dust suction and transport operation, the backwash operation is performed again at D to E after the dust suction and transport operation ends. As described above, after the backwashing operation is performed twice consecutively, the dust compression operation is performed at FG, and after the dust compression operation is completed, the operation is shifted to the dust suction and transport operation.

[0048]

As described above, according to the dust suction / transport device of the present invention, when the backwash operation is set twice consecutively, the control device terminates the second backwash operation. Then, by performing the dust compression operation by the discharge plate and compressing the dust in the dust storage tank by the discharge plate, the transition to the dust compression operation by the discharge plate at the time of the dust suction transportation is performed. This can be performed automatically and smoothly according to the situation at the time, so that the garbage can be efficiently stored in the garbage storage tank.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic overall configuration of a dust suction / transport device according to the present invention.

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

FIG. 3 is a block diagram illustrating a configuration of a suction device.

FIG. 4 is an enlarged cross-sectional view illustrating a suction passage on the dust storage tank side that communicates the suction device with the dust storage tank.

FIG. 5 is a flowchart illustrating an operation during dust suction transportation.

FIG. 6 is a diagram showing a change in a negative pressure value with respect to time during dust suction transportation.

[Explanation of symbols]

 15 Dust transport pipe 30 Suction device 36 Pressure sensor 40 Dust storage tank 42 Discharge plate 50 Suction pipe 60 Docking station 70 Control device 71 Pressure sensor C Dust suction vehicle Im Input gate Tm Vessel (dust storage container) Vm Secondary valve

Continuation of front page (56) References JP-A-3-232602 (JP, A) JP-A-5-254607 (JP, A) JP-A-1-271305 (JP, A) JP-A-5-82905 (JP) , U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65F 5/00 101 B65F 3/14 B65F 3/20

Claims (1)

(57) [Claims] 1. A garbage storage container for storing garbage, a garbage storage tank mounted on a garbage suction vehicle and having a discharge plate therein, and a garbage transport connected to the garbage storage tank and transporting garbage to an outlet of the garbage storage container. A suction pipe detachable from a docking station communicated via a pipe, a suction device for reducing the pressure of the dust storage tank and the dust storage container, and an operation control of the suction pipe; When the negative pressure is reached and a predetermined negative pressure value is reached, secondary air is introduced into the garbage storage container, and a control device that controls suction and transport of the garbage in the garbage storage container to the garbage storage tank. control equipment, during dust suction transportation, when the difference between the pressure of the pressure and the suction device side of the dust contained in the tank exceeds a specific, the connecting portion near said suction pipe and the waste storage tank It carries out the backwashing operation to remove the dust that,
If this backwashing operation is set twice consecutively ,
After the second backwash operation is completed, the dust
Performing compression operation dust suction transport device, characterized in that it is configured to compress the dust of the dust contained in the tank by the discharge plate.