Washing device

Abstract

To provide a washing device capable of easily and appropriately recovering garbage washed away from an object to be washed.SOLUTION: A washing device 1 includes a first washing part 11 for washing an object P to be washed with washing water and a recovery part 30 disposed at the first washing part 11. The recovery part 30 includes a filter 31 for recovering garbage washed away from the object to be washed by washing, which includes a through-hole 33 through which the washing water can pass. The filter 31 is provided with a groove part 34 recessed downward in a vertical direction in an installation posture of the washing device 1, in a portion of the filter 31. A groove bottom 35 of the groove part 34 is provided with a suction port 36 for sucking garbage.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a cleaning device including a cleaning section that cleans an object to be cleaned with cleaning water, and a recovery section that is provided in the cleaning section. [Background technology]

[0002] Conventionally, washing devices have been proposed that wash tableware such as plates and trays and cooking utensils such as hotel pans (hereinafter collectively referred to as "objects to be washed") while transporting them. For example, one conventional washing device arranges objects to be washed after use in cooking or the like in a line on a conveyor extending in the transport direction, and washes the objects by spraying washing water or steam toward the objects while continuously transporting them together with the conveyor (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-80160 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, some conventional washing devices circulate the washing water used in the washing section and reuse it as washing water. For this reason, conventional washing devices are equipped with a filter (such as a so-called strainer) to remove garbage such as leftover food washed off the objects from the washing water used for washing. The filter is generally provided with through holes such as punch holes, and plays a role similar to a so-called sieve, passing the washing water through the through holes and collecting garbage on the filter.

[0005] However, in the conventional washing device, when the garbage such as leftover food washed off the object is fine such as ground sesame or hijiki, if the opening area of ​​the through hole is increased to prioritize good circulation of the washing water, the garbage passes through the through hole and cannot be properly removed. Also, if the opening area of ​​the through hole is reduced to the extent that ground sesame or hijiki cannot pass through, clogging is likely to occur, and the washing water overflows instead of returning to the washing tank, making it impossible to circulate properly. In other words, the conventional washing device has room for improvement in terms of maintaining proper circulation of the washing water, collecting garbage such as leftover food washed off the object, and the accuracy of collecting the garbage.

[0006] The present invention has been made in consideration of the above-mentioned circumstances, and its object is to provide a cleaning device that can easily and properly collect dirt washed away from an object to be cleaned. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the cleaning device according to the present invention is characterized by the following [1] to [6]. [1] A cleaning device comprising a cleaning section for cleaning an object to be cleaned with cleaning water and a recovery section provided in the cleaning section, The recovery section includes: Collecting dirt washed away from the object by the cleaning; a filter having through holes through which the cleaning water can pass; The filter comprises: A groove portion recessed downward in a vertical direction in an installation posture of the cleaning device is provided in a part of the filter, A suction port for sucking the dust is provided at the bottom of the groove. It is a cleaning device. [2] In the cleaning apparatus described in [1] above, The cleaning unit includes: The cleaning apparatus further includes a cleaning tank capable of collecting and storing the cleaning water that has passed through the through hole, The suction port is The cleaning device is disposed so as to be submerged in the cleaning water stored in the cleaning tank. It is a cleaning device. [3] In the cleaning apparatus according to the above [1] or [2], The groove portion is a bottom surface of the groove bottom is made of a plate-like member that does not allow the cleaning water to pass through, The bottom surface is provided with the suction port. It is a cleaning device. [4] In the cleaning apparatus according to any one of the above [1] to [3], The recovery section includes: a collection basket that collects the dust sucked through the suction port; and a discharge mechanism for sucking the garbage into the collection basket. It is a cleaning device. [5] In the cleaning apparatus according to any one of the above [1] to [4], The filter comprises: The groove has a mesh structure except for the bottom surface of the groove. It is a cleaning device. [6] In the cleaning apparatus according to any one of the above [1] to [5], The object to be cleaned is cleaned in the plurality of cleaning units while being conveyed in a conveying direction; The recovery section includes: The cleaning unit is provided in the first cleaning unit among the plurality of cleaning units. It is a cleaning device.

[0008] According to the washing device having the above-mentioned configuration [1], the collecting section collects the garbage (so-called food scraps, etc.) washed away from the object to be washed by the washing section, and has a filter provided with a through-hole through which the washing water can pass. A groove section that is recessed vertically downward in the installation posture of the washing device is provided in a part of the filter. As a result, the washing water generates two types of flows at the places other than the groove section of the filter: a flow that passes through the through-hole, and a flow that does not pass through the through-hole and heads toward the groove section on the filter plane. The flow of washing water toward the groove section plays a role of carrying (collecting) the garbage washed away from the object to be washed from the places other than the groove section of the filter to the groove section. The garbage collected in the groove section is sucked from a suction port provided at the bottom of the groove section. As a result, the washing device having this configuration can easily and properly collect garbage on the filter, and can maintain smooth circulation without the washing water overflowing due to clogging of the filter.

[0009] According to the cleaning device having the configuration of [2] above, the suction port is arranged so as to be submerged in the cleaning water stored in a cleaning tank capable of collecting and storing the cleaning water that has passed through the through-hole of the collection section. As a result, the cleaning device of this configuration smoothly discharges the cleaning water that has flowed into the groove and the dirt that has collected in the groove from the suction port while mixing it with the cleaning water in the groove, so that dirt is less likely to remain in the groove.

[0010] According to the cleaning device having the above-mentioned configuration [3], the bottom surface of the groove where the suction port is provided is made of a plate-like member that does not allow cleaning water to pass through. This allows the cleaning device of this configuration to reliably direct the dirt collected in the groove to the suction port. In other words, the cleaning device of this configuration allows the dirt collected in the groove to be sucked through the suction port without being trapped in the groove.

[0011] The cleaning device of the configuration [4] above is equipped with a collection basket that collects the dirt sucked in from the suction port. For example, if the collection basket is arranged outside the housing of the cleaning device, it becomes easy to dispose of the collected dirt. Furthermore, the cleaning device of this configuration is equipped with a discharge mechanism that discharges the dirt into the collection basket. For example, if a device that generates negative pressure is used as the discharge mechanism, negative pressure can be generated by utilizing the water flow and water pressure of the cleaning water passing through the piping, without having to provide a pump dedicated to discharge (see Figure 2). In this way, the cleaning device of this configuration can collect dirt easily and efficiently.

[0012] According to the cleaning device of the above-mentioned configuration [5], the filter has a mesh structure that defines through holes in other places except the bottom surface of the groove bottom. However, if the cleaning device does not have a mesh structure (i.e., the through holes are punched holes), if the garbage washed away from the object to be cleaned is fine, such as ground sesame or hijiki, the opening area of ​​the through holes is larger than the garbage, and the garbage passes through the through holes and cannot be properly removed. On the other hand, if the cleaning device simply has a mesh structure, it can collect the fine (small) garbage as described above, but there is a risk of the garbage clogging the through holes. However, in the cleaning device of this configuration, as described above, by providing the grooves in the filter, a flow of cleaning water toward the grooves is generated, and the fine garbage can be mixed into the flow of cleaning water toward the grooves. As a result, the cleaning device of this configuration can easily collect garbage without clogging the through holes.

[0013] According to the washing device having the configuration of [6] above, washing is performed in a plurality of washing sections while conveying the object to be washed in the conveying direction. The recovery section is provided in the first washing section of the plurality of washing sections. Here, in the above-mentioned conventional washing device, the washing water used in washing is recovered and circulated to be reused as washing water. In such a conventional washing device, if dirt is mixed in the recovered washing water, the washing water mixed with dirt will be used in the subsequent washing, and there is a risk that the expected effect of the washing device will not be obtained. However, the washing device of this configuration can properly recover dirt in the first stage washing, so that it is possible to suppress contamination of not only the first stage but also the next stage washing water (such as contamination of the washing water with dirt) and even contamination of the washing tank (such as contamination of the washing tank with dirt). Note that the first washing section refers to the washing section arranged most upstream in the conveying direction. Effect of the Invention

[0014] Thus, according to the present invention, a cleaning device can be provided that can easily and properly collect dirt washed away from an object to be cleaned.

[0015] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following description of the preferred embodiment of the present invention (hereinafter, referred to as "embodiment") with reference to the accompanying drawings. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a schematic side view showing the internal structure of a cleaning device according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic enlarged view of the first cleaning unit shown in FIG. [Diagram 3] FIG. 3 is a schematic plan view of the first cleaning unit shown in FIG. [Figure 4] FIG. 4 is a schematic cross-sectional view of the first cleaning unit shown in FIG. [Diagram 5] FIG. 5 is a perspective view of the filter shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] <Embodiment> A cleaning device 1 according to an embodiment of the present invention will be described below with reference to the drawings. As shown in Fig. 1, the cleaning device 1 is a device that cleans an object P with cleaning water while conveying the object P on a conveyor 20 (conveying section).

[0018] <Overall configuration of cleaning device 1> The washing apparatus 1 includes a first washing section 11 for roughly washing the object P, a second washing section 12 for washing the object P washed in the first washing section 11, and a third washing section 13 for rinsing the object P washed in the second washing section 12. The first washing section 11, the second washing section 12, and the third washing section 13 are arranged in this order from an entrance 2 of the washing apparatus 1 along a conveying direction (see arrow Y1 in FIG. 1) in which the object P is conveyed by the conveyor 20. The object P to be washed by the washing apparatus 1 may be tableware such as plates and trays, or cooking utensils such as hotel pans.

[0019] The conveyor 20 is a device that transports the object P from an entrance 2 of the cleaning device 1, where the object P is carried in, toward an exit 3 from which the object P is carried out. The cleaning device 1 is formed with a transport path 4 that cleans the object P loaded from the entrance 2 provided in the outer wall of the housing (not shown) of the cleaning device 1, and transports the cleaned object P until it is discharged from the exit 3 provided in the outer wall of the housing of the cleaning device 1. The transport path 4 is a path that passes the object P continuously from the first cleaning section 11 to the third cleaning section 13 described above.

[0020] The conveyor 20 includes a chain belt 21 that moves from the entrance 2 to the exit 3 of the cleaning device 1 (specifically, the conveying passage 4) while carrying the object P to be cleaned, and a driven roller 22 around which the chain belt 21 is wound, and a driving roller 23. The driving roller 23 is connected to a driving motor (not shown) via a driving belt (not shown).

[0021] With this configuration, when the drive motor is driven, the drive roller 23 rotates via the drive belt, and the chain belt 21 wrapped around the drive roller 23 moves in the conveying passage 4 while rotating the driven roller 22. This allows the objects P to be cleaned placed on the chain belt 21 to be transported in the conveying passage 4 from the first cleaning section 11 to the third cleaning section 13. The objects P to be cleaned may be washed using a dish basket.

[0022] The first washing section 11 is a section for roughly washing the object P to be washed, which is transported by the conveyor 20 from the entrance 2 of the washing device 1, in order to wash away garbage R, such as leftover food, adhering to the object P with washing water. The first washing section 11 is equipped with a washing nozzle 61 for spraying washing water onto the object P to be washed, which is transported by the conveyor 20.

[0023] In this embodiment, the cleaning device 1 is provided with one first cleaning section 11, but a plurality of first cleaning sections 11 may be provided along the conveying direction of the conveyor 20.

[0024] The cleaning nozzle 61 may be composed of, for example, an upper cleaning nozzle and a lower cleaning nozzle which spray cleaning water from above and below the object P. In this case, the upper cleaning nozzle is disposed above the transport area in which the object P is transported, and is arranged so as to spray cleaning water downward toward the object P. On the other hand, the lower cleaning nozzle is disposed below the transport area in which the object P moves, and is arranged so as to spray cleaning water upward toward the object P. In this embodiment, cleaning water is sprayed in a curtain shape from the nozzle (not shown) of the cleaning nozzle 61.

[0025] The first cleaning section 11 further includes a cleaning tank 38 that collects the cleaning water discharged from the cleaning nozzle 61 and stores the collected cleaning water. In the cleaning device 1 according to this embodiment, the first cleaning section 11 is provided with a collection section 30 that collects the cleaning water discharged from the cleaning nozzle 61 and dirt R washed away from the object P. The collection section 30 includes a filter 31 below the cleaning nozzle 61 that collects the dirt R washed away from the object P.

[0026] When supplying cleaning water (water) to the cleaning tank 38 at the start of cleaning, the cleaning water (water) may be supplied to the first cleaning section 11, for example, from the cleaning tank 47 of the third cleaning section 13 described below via the cleaning tank 47 of the second cleaning section 12, or tap water may be supplied to each cleaning tank 47.

[0027] In this embodiment, the first cleaning section 11 is equipped with a suction-type device for collecting the dirt R, which will be described below. Specifically, as shown in Figs. 1 to 2 and 4, a filter 31 (so-called strainer) is disposed between the cleaning nozzle 61 and the cleaning tank 38. The filter 31 is attached to the cleaning tank 38 so as to close the upper opening of the cleaning tank 38.

[0028] As shown in Fig. 5, the filter 31 is provided with a groove 34 in which a part of the flat body 32 is recessed downward. The groove 34 has a bottom surface 35a made of a plate-shaped member at a groove bottom 35. The bottom surface 35a of the groove bottom 35 is provided with a suction port 36 for sucking in the dirt R washed away from the object P to be cleaned. The suction port 36 is disposed so as to be submerged in the cleaning water stored in the cleaning tank 38. In other words, the groove 34 is submerged in the cleaning water.

[0029] As shown in FIG. 4, the water level WS of the cleaning water in the groove 34 is equal to the water level WS of the cleaning tank 38. The water level WS in the groove 34 is preferably a height at which the discharge mechanism 42 can generate negative pressure to suck the dirt R through the suction port 36, as described below. For example, if the water level WS is too high, the dirt R collected in the groove 34 flows and spreads to a position away from the suction port 36 (a position where the suction force does not reach), where it stagnates or floats, making it difficult to properly collect the dirt R. On the other hand, if the water level WS is too low, the cleaning water around the suction port 36 may be sucked up, making it difficult to stably apply the negative pressure generated by the discharge mechanism 42 to the suction port 36. This makes it difficult to stably (continuously) suck the dirt R through the suction port 36. For this reason, the water level WS in the groove 34 is appropriately set so that the dirt R can be sucked.

[0030] Furthermore, the filter 31 has an inclined surface 37 formed to connect the surface of the main body 32 and the bottom surface 35a. The inclined surface 37 is an inner wall surface of the groove 34, and is inclined downward from the main body 32 toward the groove bottom 35.

[0031] The filter 31 has a mesh structure (i.e., a mesh processing is performed by weaving a plurality of metal wires) in other places except the bottom surface 35a, and the mesh structure defines through holes 33 through which cleaning water can pass. Specifically, the mesh part of the mesh structure plays the role of the through holes 33. The size of the opening area of ​​the through holes 33 is determined by the size of the mesh. The size of the mesh is preferably 20 to 50 wires per inch, and further preferably the wire diameter is 0.18 mm to 0.5 mm. However, the size of the mesh (i.e., the opening area of ​​the through holes 33) is not limited to this as long as it is a size that does not allow fine garbage R (i.e., vegetable scraps) such as ground sesame and hijiki to pass through the through holes 33.

[0032] The bottom surface 35a of the groove bottom 35 is made of a plate-like member that does not allow cleaning water to pass through. In other words, as described above, the filter 31 does not have a mesh structure (i.e., through holes 33) on the bottom surface 35a. This makes it easier to collect the dirt R washed away from the object P to be cleaned in the suction port 36 when collecting the dirt R, which will be described later. Note that the plate-like member is not limited to a flat surface.

[0033] In this embodiment, the cleaning tank 38 of the first cleaning section 11 may be provided with a heating device that heats the cleaning water to a certain set temperature.

[0034] Furthermore, in this embodiment, the first cleaning section 11 is equipped with a pressure pump 41 that pressure-feeds the cleaning water stored in the cleaning tank 38 to the cleaning nozzle 61. As a result, in the first cleaning section 11, the cleaning water is sprayed onto the object to be cleaned P, and the sprayed cleaning water is collected in the cleaning tank 38, and the collected cleaning water is sprayed again onto the object to be cleaned P, so that the cleaning water can be reused.

[0035] Furthermore, the recovery section 30 is provided with a discharge mechanism 42 that generates a negative pressure, a suction pipe 43 that sucks up the debris R collected in the groove portion 34, and a discharge pipe 44 that is disposed between a pipe 48 downstream of the pressure pump 41 and the discharge mechanism 42 and connected to both. The suction pipe 43 is disposed between the filter 31 and the discharge mechanism 42 and connected to both. A method of generating a negative pressure will be described later.

[0036] Furthermore, the collection unit 30 includes a collection basket 39a that collects the dirt R sucked through the suction port 36, outside the housing (not shown) of the cleaning device 1. The collection basket 39a has a mesh structure (through holes 33) similar to that of the filter 31, and the dirt R sucked through the filter 31 is discharged (discharged) together with cleaning water via a discharge mechanism 42. As shown in FIG. 2, the collection basket 39a is housed in a dirt collection tank 39 in which cleaning water is stored. In this embodiment, the dirt collection tank 39 is disposed outside the housing of the cleaning device 1, similar to the collection basket 39a.

[0037] Furthermore, the collection unit 30 is provided with an electrode-type or float-type detection unit 39b that detects the collected waste R. The detection unit 39b is arranged so as to be suspended downward from the inner surface of a lid portion 39c provided on the collection unit 30 toward the inside of the collection basket 39a. The detection unit 39b can detect the rise in the water level in the collection basket 39a or the accumulation of waste R at a predetermined height, and can be controlled to notify the replacement of the collection basket 39a before the waste R accumulates in the collection basket 39a and overflows. At that time, the pressure-feed pump 41 of the first cleaning unit 11 is controlled to be stopped, so that the replacement work of the collection basket 39a can be performed more safely.

[0038] Furthermore, the collection section 30 is provided with a discharge pipe 46 that discharges the sucked waste R into the collection basket 39a, and a return pipe 45 that sends the cleaning water stored in the waste collection tank 39 to the cleaning tank 38. The discharge pipe 46 is disposed between the collection basket 39a and the discharge mechanism 42, and the return pipe 45 is disposed between the cleaning tank 38 and the waste collection tank 39.

[0039] The second cleaning section 12 is a section that cleans the object P, which has been transported from the first cleaning section 11 by the conveyor 20, in order to wash away dirt adhering to the object P with cleaning water. Like the first cleaning section 11, the second cleaning section 12 is equipped with a cleaning nozzle 61 that sprays cleaning water onto the object P transported by the conveyor 20. These components are similar to those of the first cleaning section 11, and therefore a detailed description thereof will be omitted.

[0040] The second cleaning section 12 is provided with a cleaning tank 47 below the cleaning nozzle 61 for collecting the cleaning water discharged from the cleaning nozzle 61 and storing the collected cleaning water. When cleaning water (water) is supplied to the cleaning tank 47 at the start of cleaning, for example, cleaning water (water) may be supplied from the cleaning tank 47 of the third cleaning section 13 described below to the cleaning tank 47 of the second cleaning section 12, or tap water may be supplied to the cleaning tank 47 of the third cleaning section 13.

[0041] In the washing tank 47, there are disposed a plurality of detergent supplying devices (not shown) for supplying detergent to the stored washing water, and a heating device (not shown) for heating the stored washing water by electricity, steam, etc. The number of detergent supplying devices provided in the washing tank 47 is at least the number according to the types of detergent and bleach used.

[0042] Furthermore, the cleaning tank 47 may be provided with a temperature measuring device (not shown) for measuring the temperature of the cleaning water stored therein, and a concentration measuring device (not shown) for measuring the concentration of the detergent contained in the cleaning water stored in the cleaning tank 47. Furthermore, a control device (control unit) for controlling the temperature of the cleaning water using these devices and the concentration of the detergent contained in the cleaning water may be provided. Furthermore, although the cleaning apparatus 1 is provided with one second cleaning section 12 in this embodiment, a plurality of second cleaning sections 12 may be provided along the conveying direction of the conveyor 20.

[0043] Furthermore, in this embodiment, the second cleaning section 12 is provided with a pressure pump 41 that pressure-feeds the cleaning water stored in the cleaning tank 47 to the cleaning nozzle 61. This allows the cleaning water to which detergent has been added to be sprayed onto the object P to be cleaned, and the sprayed cleaning water is collected in the cleaning tank 47, and the collected cleaning water can be sprayed onto the object P to be cleaned that is transported sequentially by the conveyor 20. In this embodiment, the pressure pump 41 is provided in the second cleaning section 12, and the pressure pump 41 and the cleaning nozzle 61 are connected via a connecting pipe so as to pressure-feed the cleaning water to the cleaning nozzle 61.

[0044] The third washing section 13 is a section for rinsing the object P after detergent washing, which is transported from the second washing section 12 by the conveyor 20, in order to wash away the detergent and the like adhering to the object P with rinsing water. Furthermore, the third washing section 13 is also a section for finish washing the object P in order to wash away the washing water adhering to the object P after rinsing with cleaning water, which is tap water.

[0045] The third cleaning section 13 is provided with a cleaning tank 47 below the cleaning nozzle 61 for collecting the cleaning water discharged from the cleaning nozzle 61 and storing the collected cleaning water. Furthermore, the third cleaning section 13 is provided with a pressure pump 41 for pressure-feeding the cleaning water stored in the cleaning tank 47 to the cleaning nozzle 61. The cleaning water collected in the cleaning tank 47 is reused.

[0046] A heating device (not shown) for heating the stored cleaning water and a temperature measuring device (not shown) for measuring the temperature of the stored cleaning water are disposed in the cleaning tank 47 of the third cleaning section 13. Furthermore, a control device (control unit) for controlling the temperature of the cleaning water using these devices may be provided. Furthermore, although one third cleaning section 13 is provided in the cleaning apparatus 1 in this embodiment, multiple third cleaning sections 13 may be provided along the conveying direction of the conveyor 20.

[0047] <Waste R collection method for cleaning device 1> In this embodiment, multiple stages of cleaning are performed while the object P is transported in the transport direction. Here, collection of dirt R in the first cleaning section 11 that performs the first stage of cleaning will be described. As shown in Fig. 4, cleaning water sprayed in a curtain shape from the cleaning nozzle 61 toward the object P is sprayed onto the object P and then flows down toward the collection section 30 (see arrow Y6 in Fig. 4).

[0048] The cleaning water flowing down toward the collection section 30 has two types of flows: one that passes through the through-holes 33 of the filter 31 and flows toward the cleaning tank 38 (see arrow Y8 in FIG. 4), and the other that passes over the main body 32 and flows toward the grooves 34 (see arrow Y4 in FIG. 4). The cleaning water flowing down toward the collection section 30 also contains garbage R, such as leftover food, that has been washed away from the objects P. In other words, since the filter 31 has a mesh structure in other places except for the bottom surface 35a (i.e., it is configured so that fine garbage R, such as ground sesame and hijiki seaweed, does not pass through the through-holes 33), the garbage R is collected from the main body 32 to the grooves 34 by the flow of cleaning water that flows toward the grooves 34.

[0049] Here, the cleaning water flowing on the main body 32 may spread out and flow out of the collection section 30. For this reason, the collection section 30 is provided with a guide section 50 as shown in Fig. 3. The guide section 50 is integrally formed with a support section 51 extending from the upstream side to the downstream side (in the vertical direction of the paper) of the cleaning water flowing on the main body 32, and a fin 52 that guides the cleaning water flowing on the main body 32 to the groove section 34. As a result, even if the cleaning water flows out of the collection section 30, the guide section 50 guides it onto the main body 32 and, in particular, toward the groove section 34 (see arrow Y4 in Fig. 3).

[0050] As described above, even if the cleaning water contains debris R that has been washed away from the object P to be cleaned, the recovery section 30 can recover the debris R at c, separate the debris R from the cleaning water, and recover and store the cleaning water from which the debris R has been separated in the cleaning tank 38.

[0051] The waste R collected in the groove 34 is sucked from the suction port 36 by generating a negative pressure from the discharge mechanism 42. Specifically, the cleaning water is pumped from the pressure pump 41 toward the discharge piping 44, and when the cleaning water reaches the discharge mechanism 42, the discharge mechanism 42 generates a negative pressure in the suction pipe 43 by utilizing the water flow of the cleaning water pumped from the pressure pump 41. Here, as shown in FIG. 2, the opening of the end of the discharge piping 44 on the discharge mechanism 42 side is narrowed. This is to generate a stronger negative pressure by the effect of increasing the flow rate and reducing the pressure (Bernoulli's theorem). When the negative pressure is generated in this way, the cleaning water and the waste R that have flooded the groove 34 are sucked in at the same time. The sucked cleaning water and the waste R are merged with the cleaning water pumped from the pressure pump 41 in the discharge pipe 46 and discharged to the recovery basket 39a (see the arrow Y2 in FIG. 2). In this way, in this embodiment, the waste R is collected.

[0052] Furthermore, in this embodiment, the collection basket 39a is configured to be removable from the waste collection tank 39. That is, by removing the collection basket 39a from the waste collection tank 39, the collected waste R can be easily disposed of. When disposing of the waste R, the discharge of cleaning water and the waste R from the discharge pipe 46 to the collection basket 39a can be stopped by closing the valve 46a provided in the discharge pipe 46. In this manner, the collected waste R is disposed of in this embodiment.

[0053] Incidentally, in the waste collection tank 39 (collection basket 39a), cleaning water is discharged at the same time as the waste R is collected, so cleaning water is stored as the waste R is collected. At this time, if the collected waste R is rice, hijiki seaweed, or the like, it is sufficiently larger than the size of the mesh and settles in the collection basket 39a, so the pile height gradually increases from the bottom as it settles and accumulates. When the pile height becomes sufficiently high, the amount of cleaning water passing through the mesh from the collection basket 39a decreases, and the higher water level in the collection basket 39a or the accumulated rice or hijiki seaweed itself is detected by the detection unit 39b, and the collection basket 39a is replaced by an operator.

[0054] On the other hand, fine garbage such as ground sesame seeds floats with turbulence throughout the inside of the collection basket 39a due to the water flow from the discharge pipe 46 and the flow from the return pipe 45, and accumulates in various forms such as floating and piling up, or sticking to the mesh surface. As the amount of accumulated garbage increases, the amount of floating and piling up as well as the amount of garbage clogging the mesh surface increases, and the amount passing through the mesh of the collection basket 39a decreases. Then, the water level in the collection basket 39a gradually rises, which is detected by the detector 39b, and the operator replaces the collection basket 39a. By providing the detector 39b in this way, it is possible to prevent the garbage R containing the cleaning water from overflowing from the collection basket 39a.

[0055] In this embodiment, when the dishwashing by the washing device 1 is finished, a collection step may be provided for collecting the garbage R remaining in the pipes in the collection section 30 of the first washing section 11. In the collection step, the pressure pump 41 is driven and stopped multiple times, so that the garbage R remaining on the filter 31 and the garbage R remaining in the suction pipe 43 can be collected in the collection basket 39a. For example, the garbage R remaining on the filter 31 may be collected by repeatedly collecting the garbage R from the suction pipe 43 by an operator in the groove section 34, or by repeatedly collecting the garbage R from the suction pipe 43 by stopping the pressure pump 41. When the pressure pump 41 is stopped, the washing water remaining in the pipes 48 and the washing nozzle 61 returns to the washing tank 38, and the water level of the washing tank 38 rises. If the bottom surface of the filter 31 is set to be submerged at that time, the garbage R on the filter 31 floats due to the increased water level and is collected from the groove section 34 when the pressure pump is next started, so that the garbage R may be collected by repeating this action.

[0056] In this embodiment, a return pipe 45 is provided to reuse the cleaning water stored in the dirt collection tank 39. Specifically, since the cleaning tank 38 and the dirt collection tank 39 are connected by the return pipe 45, the water level WS of the cleaning tank 38 and the water level WS of the dirt collection tank 39 are kept at the same height (Pascal's principle).

[0057] That is, cleaning water is discharged from the cleaning tank 38 to the garbage collection tank 39 in accordance with the collection of the garbage R, and the same amount of cleaning water as that discharged to the garbage collection tank 39 is sent from the garbage collection tank 39 to the cleaning tank 38 via the return pipe 45 (see arrow Y3 in FIG. 2 and arrow Y3 in FIG. 3). In this way, in this embodiment, the cleaning water stored in the garbage collection tank 39 is also reused.

[0058] <Actions and Effects> According to the cleaning device 1 of this embodiment, by providing the grooves 34 in the filter 31, the types of flow of cleaning water on the filter 31 (main body 32) can be increased. Specifically, in a conventional cleaning device, the flow of cleaning water was only a flow passing through the through holes 33 of the filter 31 toward the cleaning tank 38 (see arrow Y8 in FIG. 4). Therefore, the dirt R washed away from the object P to be cleaned remains on the main body 32. However, in this embodiment, by providing the grooves 34 in the main body 32, a flow of cleaning water toward the grooves 34 (see arrow Y4 in FIG. 4) can be generated. As a result, the dirt R can be collected in the grooves 34 from above the filter 31 (main body 32).

[0059] In addition, the filter 31 has an inclined surface 37 in the groove 34. This allows the flow of cleaning water toward the groove 34 to be properly generated, and allows the dirt R to be collected in the groove 34 more reliably.

[0060] Furthermore, according to the cleaning device 1 of this embodiment, the suction port 36 is disposed so as to be submerged in the cleaning water stored in the cleaning tank 38. As a result, the cleaning water flowing toward the groove 34 and the debris R collected in the groove 34 are mixed with the cleaning water in the groove 34 and smoothly discharged from the suction port 36, so that debris is less likely to remain in the groove 34.

[0061] Furthermore, in the cleaning device 1 according to this embodiment, the bottom surface 35a of the groove bottom 35 is made of a plate-like member that does not allow cleaning water to pass through. This allows the dirt R collected in the groove portion 34 to be properly collected in the suction port 36 when the dirt R is sucked.

[0062] Furthermore, the cleaning device 1 according to this embodiment is configured to suck up the dirt R collected in the groove portion 34 by the discharge mechanism 42 and discharge (discharge) the sucked dirt R into the collection basket 39a. This allows for easy and efficient collection of dirt despite the simple structure.

[0063] Furthermore, according to the cleaning device 1 of this embodiment, the filter 31 has a mesh structure that defines the through-holes 33 at locations other than the bottom surface 35a of the groove bottom 35. As a result, even if the debris R washed away from the object P is fine, such as ground sesame or hijiki seaweed, the debris R can be easily collected without clogging the through-holes 33 and without being mixed into the cleaning tank 38.

[0064] Furthermore, according to the cleaning device 1 of this embodiment, multiple stages of cleaning are performed while the object P to be cleaned is transported in the transport direction, and the first cleaning unit 11 performs the first stage of the multiple stages of cleaning. This allows the dirt R to be properly collected in the first stage of cleaning and prevents it from re-adhering to the object P to be cleaned, which not only suppresses contamination of the cleaning water in the cleaning tank 38 of the first cleaning unit 11 (such as dirt being mixed into the cleaning water) but also suppresses the dirt R from re-adhering to the object P to be cleaned and being carried to the second cleaning unit 12 or the third cleaning unit 13, which is the next stage, and the dirt R from being mixed into the cleaning tank 47 of the second cleaning unit 12 or the third cleaning unit and contaminating them.

[0065] <Other forms> The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, etc. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

[0066] For example, in this embodiment, the main body 32 and the groove 34 are integrally configured, but they may be configured separately. By configuring them separately, only the main body 32 of the filter 31 can be removed from the cleaning device 1 for easy cleaning, and the size of the mesh of the main body 32 (i.e., the opening area of ​​the through-holes 33) can be changed according to the expected amount of dirt R to be washed away. Note that the dirt R to be washed away is expected to be, for example, leftover food that may adhere to the object P to be washed depending on the menu of a meal or the like.

[0067] For example, in this embodiment, the main body portion 32 is configured to be parallel to the horizontal direction, but may be configured to be inclined toward the groove portion 34.

[0068] For example, in this embodiment, the function of the discharge mechanism 42 is to generate negative pressure to suck in the dirt R in the groove portion 34, but the function is not limited to this as long as the dirt R can be sucked in.

[0069] For example, in this embodiment, the guide portion 50 is provided in the recovery portion 30, but the guide portion 50 does not necessarily have to be provided.

[0070] Here, the features of the above-mentioned embodiments of the cleaning device according to the present invention will be briefly summarized and listed in the following [1] to [6]. [1] A cleaning device (1) including a cleaning section (first cleaning section 11) for cleaning an object to be cleaned (P) with cleaning water, and a recovery section (30) provided in the cleaning section, The collection section (30) Collecting the dirt (R) washed away from the object by the cleaning; a filter (31) having a through hole (33) through which the cleaning water can pass; The filter (31) is a groove portion (34) recessed downward in the vertical direction when the cleaning device (1) is in an installed position is provided in a part of the filter (31); A suction port (36) for sucking in the dirt is provided at the bottom (35) of the groove portion. Cleaning equipment (1). [2] In the cleaning device (1) described in the above [1], The cleaning unit includes: The washing machine further includes a washing tank (38) capable of collecting and storing the washing water that has passed through the through hole (33), The suction port (36) is The cleaning tank (38) is disposed so as to be submerged in the cleaning water stored therein. Cleaning equipment (1). [3] In the cleaning device (1) according to the above [1] or [2], The groove portion (34) is a bottom surface (35a) of the groove bottom (35) is formed of a plate-like member that does not allow the cleaning water to pass through, The bottom surface (35a) is provided with the suction port (36). Cleaning equipment (1). [4] In the cleaning device (1) according to any one of the items [1] to [3], The collection section (30) a collection basket (39a) for collecting the dust sucked through the suction port (36); and a discharge mechanism for sucking the debris into the collection basket (39a). Cleaning equipment (1). [5] In the cleaning device (1) according to any one of the items [1] to [4], The filter (31) is The groove bottom (35) has a mesh structure except for the bottom surface (35a). Cleaning equipment (1). [6] In the cleaning device (1) according to any one of the items [1] to [5], The object to be cleaned (P) is cleaned in the plurality of cleaning sections while being conveyed in a conveying direction; The collection section (30) The cleaning unit is provided in the first cleaning unit among the plurality of cleaning units. Cleaning equipment (1). [Explanation of symbols]

[0071] 1 Cleaning equipment 11 First cleaning section 12 Second cleaning section 13 3rd Cleaning Section 20 Conveyor 30 Collection Department 31 Filters 32 Main body 33 Through hole 34 Groove 35 Groove bottom 35a Bottom 36 Suction port 38 Cleaning tank 39 Collection tank 39a Recovery Cage 39b Detection unit 39c Lid 41 Pressure Pump 42 Discharge mechanism 50 Guide part 51 Support part 52 Finn 61 Cleaning nozzle P Item to be cleaned R Garbage

Claims

1. A washing device comprising: a washing section that washes an object to be washed with washing water; and a collecting section that is provided in the washing section and collects dirt washed away from the object to be washed by the washing water, The cleaning unit includes: a cleaning nozzle that sprays the cleaning water toward the object to be cleaned from above to below in a vertical direction in an installation posture of the cleaning device; a cleaning tank disposed below the cleaning nozzle and having an upward opening so as to be capable of collecting and storing the cleaning water sprayed from the cleaning nozzle; a pressure pump that pressure-feeds the cleaning water stored in the cleaning tank to the cleaning nozzle, The upper opening of the cleaning tank is The cleaning nozzle has a shape that spreads outward from a lower region of the cleaning nozzle in the vertical direction, The recovery section includes: a filter having through holes through which the cleaning water can pass; The filter comprises: a cleaning tank for closing the upper opening of the cleaning tank; A groove portion recessed downward in the vertical direction is provided in a part of a main body of the filter, A suction port for sucking the dust is provided at the bottom of the groove, The suction port is Located outside the lower region, Cleaning equipment.

2. 2. The cleaning apparatus according to claim 1, The groove portion is The cleaning water is guided toward the bottom of the groove by an inclined surface. At least a portion of the inclined surface is disposed inside the lower region; a bottom surface of the groove bottom is made of a plate-like member that does not allow the cleaning water to pass through, The bottom surface is provided with the suction port. Cleaning equipment.

3. 3. The cleaning apparatus according to claim 1, The suction port is The cleaning device is disposed so as to be submerged in the cleaning water stored in the cleaning tank. Cleaning equipment.

4. The cleaning apparatus according to any one of claims 1 to 3, The body portion of the filter is It is flat and configured to be parallel to the horizontal direction. Cleaning equipment.

5. The cleaning apparatus according to any one of claims 1 to 4, The filter comprises: The groove has a mesh structure except for the bottom surface of the groove. Cleaning equipment.

6. The cleaning apparatus according to any one of claims 1 to 5, The object to be cleaned is cleaned in the plurality of cleaning units while being conveyed in a conveying direction; The recovery section includes: The cleaning unit is provided in the first cleaning unit among the plurality of cleaning units. Cleaning equipment.

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