KR101471372B1 - Vehicle for washing garbage container - Google Patents

Abstract

The present invention relates to a food garbage container washing vehicle. According to the present invention, washing water that is contaminated by washing a food garbage container is filtered for re-use. The present invention includes a vehicle that is provided with a washing chamber for food garbage container washing; multiple nozzles that are disposed in the washing chamber to inject water into the food garbage container put into the washing chamber; a water tank that is disposed in the vehicle and stores the water to be supplied to the nozzles; a first pump that pushes the water stored in the water tank out for supply to the nozzles; a valve that controls the water pushed out by the first pump and distributes the water to the multiple nozzles; a primary filter unit that receives and stores the washing water discharged from the washing chamber and includes at least one filter for removing foreign matters in the washing water; a second pump that transports the washing water stored in the primary filter unit to the water tank; a secondary filter unit that removes foreign matters in the washing water which is transported by the second pump; a screen that is disposed in a lower end portion of the washing chamber so as to filter food residue falling with the washing water during washing of the food garbage container; at least one air blow pipe that is disposed to be positioned in a lower portion of the screen and blows air at a high pressure toward the screen so as to separate food residue remaining in the screen from the screen; and air supply means for supplying high-pressure air to the air blow pipe.

Description

Vehicle for washing garbage container}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a garbage container washing machine for washing food garbage containers used for temporarily storing food garbage, and more particularly to a food garbage container washing machine for washing food garbage containers, The present invention relates to a food waste container washing car having a filtration system that can be used again for cleaning of a food waste container.

To prevent environmental pollution caused by food waste generated in homes and restaurants, it collects food waste generated in homes and restaurants, recycles the collected food waste through appropriate processes for composting, fertilizing, feeding, and fueling. A method of re-producing it as a resource is being used.

In order to recycle the food waste, the food waste is collected separately from other general waste. For this purpose, a food waste container is provided for each specific area so that nearby residents can throw the food waste into the food waste container , The collector collects the food waste collected in the food garbage container collectively and transfers it to the treatment plant.

On the other hand, in the case of the food garbage container provided in each area, continuous management is required as it is easily contaminated by exposure to moisture and odor contained in the food garbage.

Therefore, in an organization that manages food waste containers provided in each district, the food waste containers are periodically cleaned using a food waste container washing machine for washing food garbage containers.

An example of the above-mentioned garbage container cleaning car is disclosed in Japanese Patent Application Laid-Open No. 10-2001-0082423.

The food garbage container cleaning car disclosed in the above-mentioned invention comprises a water tank, a pump, a cleaning device composed of a nozzle and a brush, and a lift for transferring the food garbage container to the inside of the loading box in a loading box provided behind the driver's seat of the vehicle .

The conventional garbage container washing machine constructed as described above injects water at high pressure into a food garbage container carried to the inside of the loading box by a lift and cleans the food garbage container by using a brush.

On the other hand, it is used to clean food garbage containers, and the polluted water is stored in a separate sewage storage tank and then discharged.

As a result, the conventional garbage container washing machine having the above-described structure has a disadvantage in that the working time is determined according to the amount of water stored in the water tank, resulting in poor working efficiency.

In other words, since the use of water is essential for washing food garbage containers, if the water in the water tank is exhausted, the washing operation can be stopped, and the water garbage container washing operation can be resumed Likewise, even if the sewage storage tank is full of sewage, the washing operation can be resumed only after discharging the sewage to a specific place.

In order to replenish the water in the water tank or to discharge the wastewater stored in the waste water storage tank to a specific place, movement of the garbage container washing car is required, resulting in a problem of waste of vehicle fuel and time.

Open Patent Publication No. 10-2001-0082423 (published on August 30, 2001)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a food garbage container washing car used for cleaning food garbage containers,

It is another object of the present invention to provide a food waste container washing car which is capable of preventing circulation of washing water by preventing clogging of a flow path due to food waste.

According to an aspect of the present invention, there is provided a vehicle including a washing chamber for washing a food garbage container; A plurality of nozzles installed in the washing chamber to spray water into the food garbage container charged in the washing chamber; A water tank installed in the vehicle for storing water to be supplied to the nozzle; A first pump for pressurizing and discharging water stored in the water tank and supplying the water to the nozzle; A valve for distributing and controlling the water discharged from the first pump to a plurality of nozzles; A primary filter unit including at least one filtering filter for receiving and storing washing water discharged from the washing chamber, and removing foreign matter from the washing water; A second pump for transferring the wash water stored in the first filter unit to the water tank; A secondary filter unit for removing foreign substances in the washing water conveyed by the second pump; A screen installed at a lower end of the washing chamber to filter food waste falling together with the washing water in the washing process of the food garbage container; At least one air injection pipe installed at a lower portion of the screen and spraying air at a high pressure toward the screen to separate foreign matter remaining on the screen from the screen; And air supply means for supplying high-pressure air to the air injection pipe.

Meanwhile, in the garbage container washing machine, the primary filter unit may include a waste water storage tank for receiving and storing washing water discharged from the washing chamber; A plurality of filtration filters provided in the sewage storage tank so as to have a structure spaced apart from each other by a predetermined distance so as to remove foreign substances in the waste water and sequentially filter foreign particles having a large particle size from the inflow side of the wash water; And a first level sensor for generating a signal for driving the second pump when the level of the wash water flowing into the wastewater storage tank reaches a predetermined level.

delete

Meanwhile, in the food waste container washing machine, the screens may be configured to have a plurality of bars arranged in parallel with each other with a predetermined interval, and each of the bars may have an inverted triangular cross-sectional structure .

When the water level of the washing water reaches a predetermined level due to an increase in the level of the washing chamber due to the clogging of the screen, the water garbage container washing car, which is installed on the pipe connecting the air supplying means and the air injection pipe, And a second level sensor installed in the washing chamber to generate a signal to open the washing chamber.

In the meantime, in the food waste container washing machine, the air injection pipe is installed in the cleaning chamber so as to have a rotatable structure, and a plurality of nozzle holes formed in the air injection pipe so as to be parallel to the second line not passing through the center of the air injection pipe. And a plurality of protrusions protruding from the outer surface of the air injection tube to flow the washing water against the washing water during rotation of the air injection tube.

Meanwhile, in the garbage can cleaner, the secondary filter unit may include a plurality of water filters.

According to the present invention having the above-described features, it is possible to prevent the washing operation from being stopped due to the water exhaustion of the water tank, since the contaminated washing water is used for filtering the food waste container, It is possible to increase the working efficiency of the cleaning work of the food garbage container and to prevent waste of fuel and time since movement for supplementing water is not required in the process of washing the food garbage container.

In addition, when the screen or the discharge port is clogged by the food wastage, it is sensed using the second level sensor, and the second level sensor The air blast pipe injects high-pressure air to the screen and the discharge port based on the signal to automatically block the screen and the discharge port. Accordingly, it is possible to prevent the cleaning operation from being delayed There is an effect.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural view of a food garbage container washing car according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view showing only a substantial part of a garbage container cleaning car according to the present invention,
3 is a detailed view of the primary filter unit according to the present invention,
4 is a cross-sectional view of a washing chamber showing a structure in which a screen is installed in a washing chamber,
FIG. 5 is a perspective view showing the installation structure of the screen and the air injection pipe according to the present invention,
6 is a cross-sectional view illustrating a state in which a screen and an air injection tube according to the present invention are installed,
FIG. 7 is a sectional view showing another installation structure of the air injection tube according to the present invention,
8 is a cross-sectional view of the air injection tube shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a structural view of a garbage container washing car according to a preferred embodiment of the present invention, and FIG. 2 is a schematic view showing only a main part of a garbage container washing car according to the present invention.

The garbage container washing car according to the present invention is characterized in that the water used for washing the food garbage container 10 is filtered to be used again for cleaning the food garbage container. The car 100, the nozzle 110, A water tank 120, a first pump 130, a valve 140, a first filter unit 150, a second pump 160, and a second filter unit 170.

The vehicle 100 includes a plurality of wheels, an engine for generating power for rotating the wheels, a power transmission device for transmitting the power generated by the engine to the wheels, A known truck having a space capable of mounting a food washing equipment at the rear of the driver's seat can be used. Such a truck is already widely used, and a detailed description of the detailed structure of the vehicle The description will be omitted.

In the meantime, the vehicle 100 according to the present invention further includes a washing chamber 101 for washing the food garbage container. The washing chamber 101 receives the food garbage container from the operator, The food garbage container is transferred to the inside of the washing chamber 101 by a lift, and the washing operation is performed while the food garbage container is fixed by a lift .

Meanwhile, since the lift is a well-known technique that has already been applied to the conventional garbage container cleaning car as well as the garbage collection container, the illustration and explanation of the lift will be omitted.

The nozzle 110 injects water into the food waste container 10 introduced into the cleaning chamber 101 to perform the cleaning operation of the food waste container 101. The nozzle 110 can spray water evenly inside and outside the food waste container 101 And a plurality of nozzles 110 are installed in the cleaning chamber 101 in a distributed manner.

The water tank 120 is a tank for storing water required for cleaning the food garbage container, and is installed in a structure fixed to the vehicle 100.

The first pump 130 pressurizes the water stored in the water tank 120 and supplies the water to the nozzle 110. The first pump 130 is configured to operate by receiving power generated from a vehicle 100 engine from a known power take-off (PTO), or to transmit power generated by a separate engine or motor And can be configured to operate.

The valve 140 distributes and controls the water discharged from the first pump 130 to the plurality of nozzles 110 to distribute the water discharged from the first pump 130 to the entire nozzles 110, Or some nozzles 110, and such valve 140 may comprise a known solenoidal directional valve.

The primary filter unit 150 receives the washing water discharged from the washing chamber 101 and filters the washing water to temporarily hold the washing water discharged from the washing chamber 101 to induce sedimentation of the food wastes contained in the washing water .

Fig. 3 shows a detailed view of the primary filter unit according to the present invention.

The primary filter unit 150 is composed of a waste water storage tank 151, a filtration filter 152 and a first water level sensor 153.

The wastewater storage tank 151 is installed in a structure fixed to the vehicle 100 and is connected to the washing chamber 101 through a pipe to receive and discharge the washing water discharged from the washing chamber 101.

The filtration filter 152 is composed of a plurality of filtration filters for filtering the food waste contained in the washing water flowing into the wastewater storage tank 151 and the plurality of the filtration filters 152 are disposed inside the wastewater storage tank 151 And has a structure spaced apart by a predetermined distance.

The plurality of filtration filters 152 are configured to have different sizes of pores to sequentially filter large particles from the inflow side of the washing water. For example, the plurality of filtration filters 152 may be disposed at a position closest to the washing water flowing into the wastewater storage tank 151 And a filter having a smaller air gap as the distance from the inflow side of the washing water is larger.

The filtering filter 152 may be a mesh type filter formed by twisting the fine lines in a net shape or a filter using a filter net such as a nonwoven fabric.

The first level sensor 153 senses the level of the wash water flowing into the wastewater storage tank 151 and generates a signal for discharging the wash water when the level of the wash water reaches a preset level.

The first level sensor 153 may include a first level sensor 1531 and a second level sensor 1532. The first level sensor 1531 is installed at an inner upper end of the wastewater storage tank 151 to generate a signal for operation of the second pump 160 when the wash water reaches a preset upper limit level, The water level sensor 1532 is installed at an inner lower end of the wastewater storage tank 151 to generate a signal for stopping the second pump 160 when the wash water reaches a predetermined lower water level.

The second pump 160 transfers the washing water stored in the first filter unit 150 to the water tank 120.

The second pump 160 may be configured to operate by receiving power generated from a vehicle engine from a known power take-off (PTO) as in the case of the first pump 130, And can be configured to operate by receiving the generated power.

The secondary filter unit 170 further removes foreign substances in the washing water transferred to the water tank 120 by the operation of the second pump 160 so that a plurality of water filters can be connected in series As shown in FIG.

Meanwhile, as is well known, the water filter has a structure in which a filter member is installed in a filter housing having an inlet and an outlet, so that water flowing into the filter housing is filtered during the passage through the filter member, As the filter member, a precipitation filter, a carbon filter, and a membrane filter are mainly used.

The secondary filter unit 170 configured as described above is provided with the washing water filtered by the primary filter unit 150 to remove minute foreign substances and bacteria contained in the washing water.

In the cleaned food garbage container having the above-described structure, the screen 180 for filtering the garbage of relatively large size, which is separated from the garbage container during the washing process of the garbage container, from the inside of the washing room 101, (101).

Fig. 4 is a sectional view of a washing chamber showing a structure in which a screen is installed in a washing chamber, Fig. 5 is a perspective view showing the installation structure of a screen and an air injection tube according to the present invention, And shows a cross-sectional view showing a state where the jetting tube is installed.

The screen 180 is installed at a lower portion of the washing chamber 101 so as to block the food wastes falling from the food waste container from flowing into the discharge port 101a formed at the lower end of the washing chamber 101, ) Are arranged so as to have a parallel structure spaced apart from each other by a predetermined distance.

According to this screen 180, food waste having a relatively large particle size among the food waste falling from the food waste container can not pass between the bar 181 constituting the screen 180 and the bar 181, It is possible to prevent the large food waste from flowing into the discharge port 101a to close the flow path or prevent the performance of the primary filter unit 150 from flowing into the primary filter unit 150 .

On the other hand, as the cleaning operation of the food garbage container is progressed, the amount of garbage is increased on the screen 180, and eventually the space (bar space) of the screen 180 is blocked by the food waste, And in this case, the cleaning operation is temporarily stopped, and the operator is required to remove the food waste accumulated on the screen 180, which makes the operation possible.

The screen 180 is installed at the lower end of the washing chamber 101 and the air spraying tube 190 for spraying the air to the screen 180 is additionally provided so that the screen 180 can be easily removed .

More specifically, the air injection pipe 190 is installed inside the washing chamber 101 so as to be positioned below the screen 180, and preferably has a structure perpendicular to the bar 181 constituting the screen 180 In the lower portion of the screen 180.

The air injection pipe 190 is composed of one or more nozzles and has a plurality of nozzle holes 191 for injecting air.

The nozzle hole 191 includes a plurality of first nozzle holes 191a formed at the upper end of the air injection pipe 190 so as to inject air toward the screen 180, And a plurality of second nozzle holes 191b formed at the lower end of the air injection pipe 190.

The air injection pipe 190 is connected to the air supply means 192 and receives the compressed air and injects high pressure air. The high pressure air injected from the air injection pipe 190 is supplied to the cleaning chamber 101 And the air bubbles formed by the air injected from the air spraying pipe 190 float between the bar 191 and the bar 191 so that the bar 191 and the bar 191 are separated from each other, Thereby separating the food waste from the screen 180.

Meanwhile, the air supply means 192 may be constituted by an air tank in which air is compressed and stored at a predetermined pressure. The air supply means 192 constituted by the air tank is connected to a compressor (not shown) Compressed air is supplied to maintain a predetermined pressure.

A solenoid valve 193 is provided in the pipe connecting the air injection pipe 190 and the air supply unit 192 to supply air to the air injection pipe 190 only when necessary.

In order to solve the clogging of the screen 180 by spraying the high-pressure air to the screen 180 using the air spraying tube 190, the clogging of the screen 180 is automatically detected, So that air can be injected into the air.

To this end, a second level sensor 194 is further installed in the washing chamber 101.

When the level of the washing water in the washing chamber 101 rises and reaches the position where the second water level sensor 194 is installed due to clogging of the screen 180 or the discharge port 101a, The second level sensor 194 is configured to generate a signal for opening a solenoid valve 140 provided in a pipe connecting the supply means 192 and the air injection pipe 190. The second level sensor 194 may be a known level sensor, Sensor, and it is preferable that the second level sensor 194 is constituted by an index sensor in consideration of the fact that the inside of the cleaning chamber 101 is easily contaminated.

In order to smoothly separate the food waste from the screen 180 by the flow of bubbles or washing water generated by the air spraying pipe 190, the respective bars 181 constituting the screen 180, Is configured to have an inverted triangular cross-sectional structure of an upper light beam.

In the case of the screen 180 composed of the bar 181 having the inverted triangular cross-sectional structure, a space having a triangular cross section is formed between the bar 181 and the bar 181, When the inflow or the flow of the washing water flows, the physical force due to the bubbles and the washing water is increased, so that the food waste can be removed more smoothly.

FIG. 7 is a sectional view showing another installation structure of the air injection tube according to the present invention, and FIG. 8 is a sectional view of the air injection tube shown in FIG.

The air injection pipe 190 is configured to rotate so as to more actively induce the flow of the washing water to the washing chamber 101 to more smoothly remove the food waste remaining on the screen 180 and the discharge port 101a .

More specifically, both ends of the air injection pipe 190 are coupled to the cleaning chamber 101, and the air injection pipe 190 is coupled to the cleaning chamber 101 via the bearing B, .

A plurality of first nozzle holes 191a and a plurality of second nozzle holes 191b are formed in the upper and lower ends of the air injection tube 190, respectively, and each of the first nozzle holes 191a and the second nozzle holes 191a 191b are formed so as to be parallel to the circumferential line L not passing through the center of the air injection pipe 190. The cutting line L is a straight line intersecting the circle formed by the cross section of the air injection pipe 190 but having two intersecting points and not passing through the center point of the circle formed by the cross section of the air injection pipe 190.

According to this structure, the first nozzle hole 191a and the second nozzle hole 191b are formed so as to be inclined obliquely toward the center of the air injection tube 190, and the first nozzle hole 191a and the second nozzle hole 191b The air spraying tube 190 is rotated by the repulsive force generated in the process of injecting air at a high pressure through the second nozzle hole 191b.

In order to allow the rotating air spraying pipe 190 to more effectively circulate the washing water, a plurality of projections (not shown) are formed on the outer surface of the air spraying tube 190, (Not shown).

The process of cleaning the food garbage container using the food garbage container cleaning car according to the present invention will be described.

The food garbage container is moved to a place where the food garbage container is provided, and the food garbage container is introduced into the inside of the washing chamber 101. As described above, when the operator inserts the food garbage container into the inside of the washing chamber 101 manually or when the vehicle 100 is provided with a lift, the food garbage container is moved to the inside of the washing chamber 101 So that it is injected into the inside.

When the introduction of the food garbage container is completed, the first pump 130 is operated to supply the water in the water tank 120 to the nozzle 110, whereby the high-pressure water is supplied to the food waste container through the nozzle 110 And the cleaning operation of the food garbage container is performed.

In the washing process of the food garbage container, the washing water and the food waste used for washing the food garbage container fall to the bottom of the washing chamber 101. At this time, the food garbage of a relatively large particle can not pass through the screen 180 The remaining food waste and the washing water are introduced into the waste water storage tank 151 through the discharge port 101a formed at the lower end of the washing chamber 101. [

When the level of the washing water in the washing chamber 101 reaches the second level sensor 194 due to the clogging of the screen 180 or the discharge port 101a formed at the lower end of the washing chamber 101, A signal is generated from the solenoid valve 194 and the solenoid valve 140 is opened so that high pressure air is injected from the air injection pipe 190.

Bubbles are generated by the air injected from the air injecting tube 190, and the air is injected from the air injecting tube 190 into the bar 181 of the screen 180 So that the food waste sandwiched between the bars 181 is separated from the screen 180. Further, each bar 181 constituting the screen 180 is constituted by an inverted triangular cross-sectional structure, which increases the physical force generated by the flow of bubbles or washing water, so that the food waste can be more effectively .

Meanwhile, the washing water flowing into the wastewater storage tank 151 stays in the wastewater storage tank 151 until the second pump 160 is driven. At this time, the food waste contained in the washing water is discharged to the bottom of the wastewater storage tank 151 And is further filtered by the filtration filter 152 installed in the waste water storage tank 151. [

On the other hand, as the washing operation of the food garbage container continues, the washing water level in the waste water storage tank 151 rises, and the water level of the washing water reaches the first level sensor 1531 A signal is generated in the first level sensor 1531 and the second pump 160 is driven by the signal to return the washing water in the waste water storage tank 151 to the water tank 120. [

The washing water is returned to the water tank 120 through the wastewater storage tank 151. The washing water passes through the second filter unit 170 composed of a plurality of water filters and the second filter unit 170 is included in the washing water. Thereby removing foreign substances and germs from the fine particles.

As described above, the food waste container washing car according to the present invention is characterized in that the washing water used for washing the food garbage container is filtered and returned to the water tank 120, and the washing water returned to the water tank 120 is returned to the food waste container So that the efficiency of the cleaning operation of the efficiency of operation of the food waste container washing car can be improved.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

Description of the Related Art
100: vehicle 101: washing chamber
110: nozzle 120: water tank
130: first pump 140: valve
150: Primary filter unit 151: Wastewater storage tank
152: Filtration filter 153: First level sensor
160: Second pump 170: Secondary filter unit
180: Screen 181: Bar
190: air jet 191: nozzle jet
192 air supply means 193 valve
194: second level sensor 195: protrusion

Claims (7)

A vehicle (100) having a washing chamber (101) in which a cleaning operation of a food garbage container is performed;
A plurality of nozzles 110 installed in the washing chamber 101 for spraying water into the food waste container introduced into the washing chamber 101;
A water tank (120) installed in the vehicle (100) and storing water to be supplied to the nozzle (110);
A first pump (130) for pressurizing and discharging the water stored in the water tank (120) and supplying the water to the nozzle (110);
A valve 140 for distributing and controlling the water discharged from the first pump 130 to a plurality of nozzles 110;
A primary filter unit (150) including at least one filtering filter (152) for receiving and storing washing water discharged from the washing chamber (101) and removing foreign substances in the washing water;
A second pump 160 for transferring the washing water stored in the primary filter unit 150 to the water tank 120;
A secondary filter unit (170) for removing foreign substances in the washing water conveyed by the second pump (160);
A screen (180) installed at a lower end of the washing chamber (101) to filter the food waste falling together with the washing water in the washing process of the food waste container;
And one or more air injection pipes 190 disposed at a lower portion of the screen 180 for spraying air toward the screen 180 at a high pressure to separate the food waste remaining on the screen 180 from the screen 180 ); And
And air supply means (192) for supplying high-pressure air to the air injection pipe (190). The filter unit according to claim 1, wherein the primary filter unit (150)
A wastewater storage tank 151 for receiving and storing washing water discharged from the washing chamber 101;
A plurality of pores having different sizes of pores are disposed in the wastewater storage tank 151 so as to have a structure spaced apart from each other by a predetermined distance to remove contaminants in the wastewater, A filter (152); And
And a first level sensor (153) for generating a signal for driving the second pump (160) when the level of the wash water flowing into the wastewater storage tank (151) reaches a preset level Food waste container washing car. delete The method according to claim 1,
The screen 180 is composed of a plurality of bars 181 arranged so as to have a parallel structure spaced apart from each other by a predetermined distance, and each of the bars 181 has an inverted triangular cross- Food waste container washing car. The method according to claim 1,
When the water level of the washing water reaches a preset position due to an increase in the water level of the washing chamber 101 due to the clogging of the screen 180, the water level on the pipe connecting the air supplying means 192 and the air injecting pipe 190 And a second water level sensor (194) installed in the washing chamber (101) to generate a signal to open the valve (193) installed. The method according to claim 1,
The air injection pipe 190 is installed in the cleaning chamber 101 so as to have a rotatable structure,
A plurality of nozzle holes 191 formed in the air injection pipe 190 so as to be parallel to a circumferential line L not passing through the center of the air injection pipe 190; And
And a plurality of protrusions (195) formed in a structure protruding from the outer surface of the air injection pipe (190) so as to flow the washing water against the washing water during rotation of the air injection pipe (190) Washing car. The method according to claim 1,
Wherein the secondary filter unit (170) comprises a plurality of water filters.

Images