washing machine

Abstract

To provide a washing machine capable of improving the maintainability of a washing pump.SOLUTION: In a dishwasher 100, a washing pump 5 has a water absorption part 50, a supply part 51 and a connection part 52. The connection part 52 presents a flat shape in which a width size is larger than a height size in a cross section orthogonal to an extension direction of a flow channel in which wash water flows from the water absorption part 50 to the supply part 51. At least parts of the water absorption part 50 and the connection part 52 are positioned below a washing tank 20 in a connection state that the washing tank 20 and the water absorption part 50 are connected to each other. The water absorption part 50 is disposed detachably from the washing tank 20. The washing pump 5 can move in a front-back direction in a state that the water absorption part 50 is removed from the washing tank 20.SELECTED DRAWING: Figure 15

Description

[Technical Field]

[0001] The present invention relates to a washing machine. [Background technology]

[0002] Patent Document 1 discloses a washer that includes a washing tank that stores washing water for washing objects to be washed, a rinsing tank that stores rinsing water for rinsing the objects to be washed, a washing pump that sprays the washing water stored in the washing tank from a washing jet hole into a washing chamber, a rinsing pump that sprays the rinsing water stored in the rinsing tank from a rinsing jet hole into the washing chamber, and a machine room in which the washing tank, rinsing tank, washing pump, and rinsing pump are arranged. In this washer, the washing pump is arranged below the washing tank. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-57844 Summary of the Invention [Problem to be solved by the invention]

[0004] In a cleaning machine, it is desirable to increase the opening height of the door that opens and closes the cleaning chamber without changing the height dimension of the cleaning machine body. In this case, the space in the machine room in the vertical direction is reduced. In a configuration in which the cleaning pump is located below the cleaning tank, as in conventional cleaning machines, space in the vertical direction is inevitably required, making it difficult to realize a configuration in which the opening height of the door that opens and closes the cleaning chamber is increased without changing the height dimension of the cleaning machine body. Therefore, when attempting to locate the cleaning pump in the limited space in the machine room, it may be necessary to locate the cleaning pump at the rear of the machine room (toward the back of the maintenance position). This configuration makes it difficult to maintain the cleaning pump.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a washing machine that can improve the ease of maintenance of the washing pump. [Means for solving the problem]

[0006] The washing machine according to the present invention is a washing machine for washing objects housed in a washing chamber, and comprises a washing tank for storing washing water for washing the objects, a washing pump for spraying the washing water stored in the washing tank from washing jet holes into the washing chamber, a rinsing pump for spraying the rinsing water for rinsing the objects from the rinsing jet holes into the washing chamber, and a machine room located below the washing chamber, which forms a space extending in a first direction and a second direction perpendicular to the first direction when viewed vertically, and in which the washing tank, washing pump and rinsing pump are disposed, and the washing pump has a water intake section connected to the bottom of the washing tank for absorbing washing water from the washing tank, a supply section for supplying washing water to the washing jet holes, and a water intake section and a supply section connected to the water intake section. and a connecting portion in which the water intake portion, supply portion and connecting portion are integrally formed, and the connecting portion has a flat shape in which the width dimension is greater than the height dimension in a cross section perpendicular to the extension direction of the flow path in which cleaning water flows from the water intake portion to the supply portion, the cleaning tank extends with the first direction as its longitudinal direction, and at least a portion of the water intake portion and the connecting portion are located below the cleaning tank in a connected state in which the cleaning tank and the water intake portion are connected, and the supply portion is arranged to be aligned in the second direction with respect to the cleaning tank in the connected state, the water intake portion is detachably formed with respect to the cleaning tank, and the cleaning pump is movable in the first direction when the water intake portion is detached from the cleaning tank.

[0007] In a cleaning machine according to the present invention, the connection portion of the wash pump has a flat shape in which the width dimension is greater than the height dimension. This allows at least a portion of the connection portion to be positioned below the wash tank when the water intake unit is connected to the lower part of the wash tank, without requiring additional space in the height direction of the machine room. The wash tank also extends longitudinally in the first direction, and the supply unit, when connected, is arranged alongside the wash tank in the second direction. In this configuration, the water intake unit is detachably attached to the wash tank, and the wash pump is movable in the first direction when the water intake unit is detached from the wash tank. Therefore, in the cleaning machine, when performing maintenance on the wash pump, the water intake unit can be removed from the wash tank, allowing the wash pump to be pulled out without the supply unit coming into contact with the wash tank. As described above, the wash pump in a cleaning machine is easier to maintain.

[0008] In the washer according to the present invention, the machine chamber may be provided with a cover on one side in the first direction that opens the space to the outside of the machine chamber. In this configuration, the cover on one side of the machine chamber in the first direction can be removed to open the machine chamber, and the wash pump can be removed or installed through the open portion.

[0009] The washer according to the present invention may include a rinsing tank for storing rinsing water, the rinsing pump being disposed on one side of the rinsing tank in a first direction and in line with the rinsing tank in the first direction, and the supply unit being disposed between the washer tank and the rinsing tank in the second direction. In this configuration, the washer pump is disposed on the other side of the first direction (the side opposite to the side on which the cover is provided). In this way, even if the washer pump is disposed at the back of the portion opened for maintenance, the washer pump can be removed for maintenance because it is movable in the first direction.

[0010] In the cleaning machine according to the present invention, the cleaning jet holes include a first cleaning jet hole that sprays cleaning water into the cleaning chamber from above and a second cleaning jet hole that sprays cleaning water into the cleaning chamber from below. The supply section of the cleaning pump includes a first supply section that supplies cleaning water to the first cleaning jet hole and a second supply section that supplies cleaning water to the second cleaning jet hole. The supply section includes a first pipe connecting the first cleaning jet hole to the first supply section and a second pipe connecting the second cleaning jet hole to the second supply section. The tip of the second supply section may extend vertically, and the base end of the second supply section may be integrally formed with a portion of the connecting section. The second cleaning jet hole, located below the cleaning chamber, and the second supply section of the cleaning pump, located below the cleaning chamber, are positioned close to each other in the vertical direction. Therefore, the tip of the second supply section must be extended vertically and raised. This configuration may apply a load to the tip, which may result in water leakage. Therefore, the base end of the second supply section is integrally formed with a portion of the connecting section. This increases the strength of the second supply section, thereby preventing water leakage.

[0011] The cleaning machine according to the present invention may include a fastener that is attached to the second supply unit and the second piping to fasten the second piping to the second supply unit and that is detached from the second supply unit and the second piping to release the fastening of the second piping to the second supply unit, and the fastener is detachable in a first direction relative to the second supply unit and the second piping. In this configuration, the second piping can be fastened to the second supply unit and released from the fastening of the second piping to the second supply unit by attaching and detaching the fastener in the first direction. In this way, the fastener can be attached and detached by operating the fastener in the first direction, which is the same as the movement direction of the cleaning pump, thereby improving maintainability.

[0012] In the cleaning machine according to the present invention, the bottom of the machine chamber may be provided with one or more mounting sections protruding above the bottom at a position where the supply section will be located in the connected state. The mounting section may have a mounting surface on which the supply section is mounted and an inclined surface that guides the cleaning pump from the bottom to the mounting surface when the cleaning pump moves in the first direction and is placed on the mounting surface. In this configuration, when the cleaning pump is moved in the first direction to connect the cleaning tank and the water intake section, the supply section rides up on the mounting surface via the inclined surface of the mounting section. As a result, when the supply section rides up on the mounting section, the water intake section also rises in height. Therefore, when the cleaning tank and the water intake section are connected, the supply section does not float, which prevents stress from being applied to the connection between the cleaning tank and the water intake section. This prevents cleaning water from leaking from the connection between the cleaning tank and the water intake section.

[0013] A washing machine according to the present invention includes a pump guard disposed at the drain outlet of a washing tank to prevent foreign matter from entering the washing pump from the washing tank, and the drain outlet of the washing tank is provided with a fixing part having a first surface to which the suction part is connected and a second surface opposite the first surface on which the pump guard is disposed, and the pump guard and the suction part may be fixed to the fixing part by the same fixing member. In this configuration, the suction part is disposed on the first surface and the pump guard is disposed on the second surface, and the fixing member is attached to fix the pump guard and the suction part to the fixing part. Therefore, compared to when the pump guard and the suction part are each fixed to the fixing part by separate fixing members, the pump guard and the suction part can be easily assembled to the fixing part.

[0014] The cleaning machine according to the present invention may include a supply device that supplies detergent to the wash water, and the upper surface of the connection part may be flat and form a mounting base for the supply device. In this configuration, the upper surface of the connection part of the wash pump forms the mounting base for the supply device, so there is no need to provide a separate base for attaching the supply device. This reduces the number of parts.

[0015] In the washer according to the present invention, the wash pump has a drainage path portion that constitutes part of a drainage path that discharges wash water discharged from the wash tank to the outside, and the drainage path portion may be integral with at least a part of the water intake portion, the supply portion, and the connection portion. In this configuration, since the drainage path portion is integral with the water intake portion, the supply portion, and the connection portion in the wash pump, the number of parts can be reduced, thereby improving assembly ease.

[0016] The washing machine according to the present invention includes a rinsing tank for storing rinsing water, and the washing pump has a supply path portion that constitutes a part of the supply path that supplies rinsing water to the rinsing tank, and the supply path portion may be in contact with at least a part of the drainage path portion. In this configuration, since the supply path portion is in contact with at least a part of the drainage path portion, heat exchange occurs between the water flowing in the supply path portion and the wash water flowing in the drainage path portion, and the water flowing in the supply path portion can be heated by the wash water flowing in the drainage path portion. [Effects of the Invention]

[0017] According to the present invention, the maintainability of the wash pump can be improved. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of a dishwasher according to one embodiment. [Figure 2] FIG. 2 is a diagram showing a schematic configuration of the dishwasher. [Figure 3] FIG. 3 is a perspective view of the wash pump. [Figure 4] FIG. 4 is a partial cross-sectional view of the wash pump. [Figure 5] FIG. 5 is a perspective view showing the cross-sectional configuration of the washing tank and the water intake part of the washing pump in a connected state. [Figure 6] FIG. 6 is a perspective view showing a state in which the washing pump and the lower washing pipe are connected. [Figure 7] FIG. 7 is a diagram showing a cross-sectional configuration of a state in which the second supply unit and the lower cleaning pipe are connected by a connecting member. [Figure 8] 8(a), 8(b) and 8(c) are diagrams showing the fixture. [Figure 9] FIG. 9 is a plan view showing the configuration inside the machine room. [Figure 10] FIG. 10 is a partially cutaway perspective view showing the configuration inside the machine room. [Figure 11] FIG. 11 is a plan view showing the configuration inside the machine room with the wash pump removed. [Figure 12] FIG. 12 is a perspective view showing a state in which the washing pump is positioned by the stopper. [Figure 13] FIG. 13 is a perspective view showing the configuration inside the machine room. [Figure 14] FIG. 14 is a perspective view showing the configuration inside the machine room with the power supply box removed. [Figure 15] FIG. 15 is a perspective view showing the state in which the washing pump, the rinsing tank, the rinsing pump, the lower washing pipe and the rinsing pipe have been removed. [Figure 16] FIG. 16 is a diagram showing a washing pump according to a modified example. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, a dishwasher (washing machine) 100 according to one embodiment will be described with reference to the drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicated explanations will be omitted. For ease of explanation, a front-rear direction (first direction), a left-right direction (second direction), and an up-down direction are respectively defined in FIG.

[0020] As shown in Fig. 1, a dishwasher 100 according to one embodiment is an under-counter dishwasher having a door 15 provided on the front of a washing chamber 1B. As shown in Figs. 1 and 2, the dishwasher 100 includes a main body 1, a door 15, a washing tank 20, an upper nozzle 3, a lower nozzle 4, a washing pump 5, a rinsing tank 6, a rinsing pump 7, a detergent supply pump (detergent supply device) 8, a rinse agent supply pump 9, and a controller 10.

[0021] The main body 1 is formed to include a frame (not shown), a stainless steel exterior panel 11, and an interior panel 2. The exterior panel 11 has a pair of side panels 11A, 11A that form the left and right sides, an upper panel 11B, an upper front panel 11C, a lower front panel (cover) 11D, and a rear panel 11E. At least the lower front panel 11D is easily detachable from the frame. Legs 12 are attached to the four corners of the lower part of the main body 1. An operating unit 13 for operating various operations of the dishwasher 100 is provided on the upper front panel 11C.

[0022] The operation unit 13 is a section where the operation mode and various settings are input. In this embodiment, the operation unit 13 is configured with a liquid crystal display screen and tempered glass (electrostatic switch) covering it. The operator can perform various operations by touching the tempered glass covering the liquid crystal display screen. The operation unit 13 may be configured with various buttons and a touch panel, or may be configured with a remote control, operation terminal, etc. that is separate from the main body 1.

[0023] A machine chamber 1A is formed in the lower region of the main body 1, accommodating a washing tank 20, a washing pump 5, a rinsing tank 6, a rinsing pump 7, a detergent supply pump 8, and a rinse aid supply pump 9. A washing chamber 1B is formed in the upper region of the main body 1, accommodating a rack on which dishes (items to be washed) D and the like are set. The washing chamber 1B is a space above the washing tank 20 and is constituted by interior panels 2. The interior panels 2 mainly include a pair of side panels 2A, 2A, an upper panel 2B, and a rear panel (not shown). Rack rails 23 that support the rack are formed on the inner surfaces of the pair of side panels 2A, 2A. An opening 1C is formed in the main body 1, through which the rack on which dishes D and the like are set is inserted and removed from the washing chamber 1B. The rack rails 23 may be formed integrally with the side panels 2A, 2A by extrusion processing, or may be formed by attaching another member to the inner surfaces of the side panels 2A, 2A.

[0024] The door section 15 is disposed outside the opening section 1C. The door section 15 is provided so as to be able to open and close the opening section 1C, and when the door section 15 is opened, the cleaning chamber 1B is exposed to the outside of the main body section 1. The door section 15 is provided so as to be rotatable about a shaft extending in the left-right direction at the lower end of the door section 15 as the rotation axis. An operator can open the cleaning chamber 1B by pushing down a handle 15A provided at the upper end of the door section 15 toward himself.

[0025] The washing tank 20 is provided below the washing chamber 1B. The washing tank 20 stores washing water used to wash the tableware D and the like stored in the washing chamber 1B. The washing water is water sprayed into the washing chamber 1B during the washing process. The washing tank 20 separates the machine chamber 1A from the washing chamber 1B, and has a water receiving section that receives and guides the water sprayed from the upper nozzle 3 and the lower nozzle 4 and that falls after washing or rinsing the tableware D to the storage section, and a storage section that stores the washing water supplied to the upper nozzle 3 and the lower nozzle 4 by the washing pump 5. In this embodiment, the washing tank 20 refers to the storage section unless otherwise specified. The washing tank 20 is provided with a washing water detection section 24, a washing water heater 25A, and a washing water temperature sensor 25B.

[0026] Flush water detection unit 24 detects the level of flush water stored in flush tank 20. Flush water detection unit 24 is, for example, a switch that turns ON when the water level in flush tank 20 exceeds constant water level H1 and turns OFF when the water level is equal to or lower than constant water level H1. The detection results by flush water detection unit 24 are acquired by controller 10. If flush pump 5, which will be described in detail later, sucks in air while it is running, so-called air entrapment occurs and flush water cannot be sprayed from upper nozzle 3 and lower nozzle 4. In one embodiment, the operation of flush pump 5 is stopped when flush water detection unit 24 turns OFF during operation, thereby preventing the flush pump 5 from sucking in air.

[0027] Wash water heater 25A heats the wash water stored in washing tank 20 to improve sterilization and washing capabilities. Wash water temperature sensor 25B detects the temperature of the wash water stored in washing tank 20. The detection results from wash water temperature sensor 25B are acquired by controller 10. The ON / OFF of wash water heater 25A is controlled by controller 10. For example, wash water heater 25A is controlled by controller 10 so as to maintain the wash water at a predetermined temperature based on the water temperature detected by wash water temperature sensor 25B.

[0028] A circular through-hole (drain port) 20b is formed in the bottom 20a of the cleaning tank 20. The through-hole 20b is a circular plate-shaped member with multiple elongated holes formed through it in the thickness direction, and is covered by a pump guard 26 that prevents foreign matter from entering the cleaning pump 5. The through-hole 20b is connected to the cleaning pump 5. A water intake section 50 of the cleaning pump 5, which will be described later, is formed with a connection hole 50a that is connected to the through-hole 20b, and a drain hole 50b that is connected to a drain pipe 28 that discharges water to the outside of the main body 1.

[0029] The flush tank 20 is provided with an overflow pipe 27 that extends vertically. Overflow pipe 27 allows water that exceeds a predetermined water level in the flush tank 20 to flow in from its upper end and drain it outside the flush tank 20, thereby regulating the level of flush water stored in the flush tank 20. The lower end of overflow pipe 27 passes through insertion hole 26a (see Figure 5) of pump guard 26 that has been burred to cover through-hole 20b, and is removably inserted into drain hole 50b formed in water intake section 50. By removing the lower end of overflow pipe 27 from drain hole 50b, flush water stored in the flush tank 20 can be drained via through-hole 20b and drain hole 50b.

[0030] The upper nozzle 3 is provided above the cleaning chamber 1B. The upper nozzle 3 is rotatably mounted on an upper support member 21A provided above the cleaning chamber 1B. The upper nozzle 3 has a main body 30 extending radially from a base end, which is the center of rotation of the rotation axis of the upper nozzle 3, to a tip end. The main body 30 is integrally formed with a cleaning jet hole (first cleaning jet hole) 31 for spraying cleaning water stored in the cleaning tank 20, a cleaning flow path 32 extending from the rotation center to the cleaning jet hole 31 and through which the cleaning water flows, a rinsing jet hole 33 for spraying rinsing water stored in the rinsing tank 6, and a rinsing flow path 34 extending from the rotation center to the rinsing jet hole 33 and through which the rinsing water flows. The upper nozzle 3 rotates when the flow of cleaning water generated in the cleaning flow path 32 or the flow of rinsing water generated in the rinsing flow path 34 is converted into rotational force. To the upper nozzle 3, an upper cleaning pipe (first pipe) 58 that supplies cleaning water to the cleaning flow path 32 and an upper rinsing pipe 78 that supplies rinsing water to the rinsing flow path 34 are connected.

[0031] The lower nozzle 4 is provided below the cleaning chamber 1B. The lower nozzle 4 is rotatably mounted on a lower support member 21B provided below the cleaning chamber 1B. The lower nozzle 4 has a main body 40 extending radially from a base end, which is the center of rotation of the rotation axis of the lower nozzle 4, to a tip end. The main body 40 is integrally formed with a cleaning jet hole (second cleaning jet hole) 41 for spraying cleaning water stored in the cleaning tank 20, a cleaning flow path 42 extending from the rotation center to the cleaning jet hole 41 and through which the cleaning water flows, a rinsing jet hole 43 for spraying rinsing water stored in the rinsing tank 6, and a rinsing flow path 44 extending from the rotation center to the rinsing jet hole 43 and through which the rinsing water flows. The lower nozzle 4 rotates when the flow of cleaning water generated in the cleaning flow path 42 or the flow of rinsing water generated in the rinsing flow path 44 is converted into rotational force. The lower nozzle 4 is connected to a lower cleaning pipe (second pipe) 59 that supplies cleaning water to the cleaning flow path 42 and a lower rinsing pipe 79 that supplies rinsing water to the rinsing flow path 44 .

[0032] The dishes D arranged on the dish rack are sprayed with washing water by the upper nozzle 3 and the lower nozzle 4 in the washing process, and are sprayed with rinsing water by the upper nozzle 3 and the lower nozzle 4 in the rinsing process.

[0033] The wash pump 5 is arranged in the machine room 1A. The wash pump 5 sends out wash water stored in the wash tank 20 to the wash chamber 1B which contains dishes D etc. The wash pump 5 takes in wash water from the wash tank 20 and sends it out to the upper nozzle 3 and the lower nozzle 4. An upper wash piping 58 is connected to a first discharge port of the wash pump 5. The upper wash piping 58 is connected to the upper nozzle 3. A lower wash piping 59 is connected to a second discharge port of the wash pump 5. The lower wash piping 59 is connected to the lower nozzle 4.

[0034] The rinsing tank 6 is disposed in the machine chamber 1A. The rinsing tank 6 stores rinsing water used for rinsing dishes D and the like. The rinsing water is water that is sprayed into the washing chamber 1B during the initial hot water supply process and the rinsing process. Water is supplied to the rinsing tank 6 from an external water source via a water supply pipe 60. A strainer 60A is provided in the water supply pipe 60. A valve 60B is provided downstream of the strainer 60A in the water supply pipe 60.

[0035] The rinsing tank 6 is provided with a rinsing water detection unit 62, an overflow unit 63, a rinsing water heater 64A, and a rinsing water temperature sensor 64B.

[0036] The rinsing water detection unit 62 is a switch that detects whether the water stored in the rinsing tank 6 is at a constant water level H2. The detection result of the rinsing water detection unit 62 is acquired by the controller 10. The valve 60B is controlled by the controller 10. For example, the controller 10 opens and closes the valve in conjunction with the detection of the constant water level H2 by the rinsing water detection unit 62, and controls the valve 60B so as to maintain a constant level of rinsing water stored in the rinsing tank 6.

[0037] The overflow section 63 discharges water that exceeds the full water level in the rinsing tank 6. The rinsing tank 6 is a sealed tank, and exceeds the full water level, for example, when the valve 60B experiences a closing abnormality. The rinsing water heater 64A heats the rinsing water stored in the rinsing tank 6 to improve sterilization and rinsing capabilities. The rinsing water temperature sensor 64B detects the temperature of the rinsing water. The detection result from the rinsing water temperature sensor 64B is acquired by the controller 10. The ON / OFF of the rinsing water heater 64A is controlled by the controller 10. For example, the rinsing water heater 64A is controlled by the controller 10 to maintain the rinsing water at a predetermined temperature based on the water temperature detected by the rinsing water temperature sensor 64B.

[0038] The rinsing pump 7 sends out rinsing water stored in the rinsing tank 6 to the washing chamber 1B that contains tableware D, etc. The rinsing pump 7 takes in rinsing water from the rinsing tank 6 and sends it out to the upper nozzle 3 and the lower nozzle 4. An upper rinsing pipe 78 and a lower rinsing pipe 79 are connected to the discharge port of the rinsing pump 7 via a rinsing pipe 77. The upper rinsing pipe 78 is connected to the upper nozzle 3. The lower rinsing pipe 79 is connected to the lower nozzle 4.

[0039] The detergent supply pump 8 is disposed in the machine room 1A. The detergent supply pump 8 supplies the detergent stored in the detergent tank 8A to the cleaning chamber 1B via piping 8B. The detergent discharged into the cleaning chamber 1B flows into the cleaning tank 20 and mixes with the cleaning water. The rinse agent supply pump 9 is disposed in the machine room 1A. The rinse agent supply pump 9 supplies the rinse agent stored in the rinse agent tank 9A to the rinsing piping 77 via piping 9B. The rinse agent supplied to the rinsing piping 77 is mixed with the rinsing water and supplied to the cleaning chamber 1B via the upper nozzle 3 and the lower nozzle 4.

[0040] The controller 10 is disposed between the upper panel 11B of the main body 1 and the upper panel 2B that constitutes the washing chamber 1B. The controller 10 controls the overall operation of the dishwasher 100. The controller 10 is a computer system or processor implemented in an integrated circuit. The controller 10 is composed of a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), an input / output interface, etc. Various programs and data are stored in the ROM.

[0041] Next, the washing pump 5 will be described in detail. As shown in Figures 3 and 4, the washing pump 5 has a water intake section 50, a supply section 51, and a connection section 52. In the washing pump 5, the water intake section 50, the supply section 51, and the connection section 52 are integrally molded from resin.

[0042] The water intake section 50 absorbs cleaning water from the cleaning tank 20. The water intake section 50 is connected to the bottom of the cleaning tank 20. The water intake section 50 is detachably attached to the cleaning tank 20. The water intake section 50 includes a fixed section 53 in which the above-mentioned connection hole 50a is provided, and a bottom section 54 in which the above-mentioned drainage hole 50b is provided. The fixed section 53 is provided with a plurality of threaded holes 53a that threadably engage with bolts B, which will be described later.

[0043] As shown in FIG. 5, a fixing portion 20c is provided on the bottom 20a of the cleaning tank 20. The fixing portion 20c has a through-hole 20b. The fixing portion 20c has a first surface S1 to which the water intake portion 50 is connected and a second surface S2 located opposite the first surface S1 and on which the pump guard 26 is disposed. The pump guard 26 and the water intake portion 50 are fixed to the fixing portion 20c with the same bolt (fixing member) B. The bolt B is inserted from the pump guard 26 side and threadedly engages with a threaded hole 53a provided in a fixed portion 53 of the water intake portion 50 via the fixing portion 20c. This fixes the pump guard 26 and the water intake portion 50 to the cleaning tank 20. A seal member may be disposed between the fixing portion 20c and the fixed portion 53 of the water intake portion 50.

[0044] The supply unit 51 supplies cleaning water to the cleaning jet holes 31 of the upper nozzle 3 and the cleaning jet holes 41 of the lower nozzle 4. A pump mechanism (not shown), such as an impeller, for delivering cleaning water is provided inside the supply unit 51. As shown in FIGS. 3 and 4, the supply unit 51 has a first supply unit 51A that supplies cleaning water to the cleaning jet holes 31 of the upper nozzle 3, and a second supply unit 51B that supplies cleaning water to the cleaning jet holes 41 of the lower nozzle 4. In the supply unit 51, the flow path for cleaning water is partitioned (divided) into two within the supply unit 51 so that cleaning water is supplied from both the first supply unit 51A and the second supply unit 51B.

[0045] An upper cleaning pipe 58 is connected to the first supply unit 51A. The upper cleaning pipe 58 is detachably provided to the first supply unit 51A. A lower cleaning pipe 59 is connected to the second supply unit 51B. The lower cleaning pipe 59 is detachably provided to the second supply unit 51B. The first supply unit 51A is arranged below the supply unit 51. The first supply unit 51A extends horizontally toward the cleaning tank 20. A portion of the first supply unit 51A is located below the cleaning tank 20. The upper cleaning pipe 58 connected to the first supply unit 51A extends in the left-right direction below the cleaning tank 20, rises on the left side of the machine room 1A and extends in the up-down direction.

[0046] The second supply unit 51B includes a tip end 51Ba and a base end 51Bb. The tip end 51Ba extends vertically. The lower cleaning pipe 59 is connected to the tip end 51Ba. The base end 51Bb is integrally formed with a part of the connection unit 52. The base end 51Bb is arranged in parallel with the connection unit 52.

[0047] 6, the second supply unit 51B and the lower cleaning pipe 59 are connected by a connecting member 55. The connecting member 55 is a cylindrical member. As shown in FIG. 7, the connecting member 55 is connected to the tip portion 51Ba of the second supply unit 51B and to the end portion of the lower cleaning pipe 59.

[0048] A fixing device 56 is detachably provided on the connecting member 55. Specifically, the fixing device 56 is detachably provided on the connecting member 55 in the front-to-rear direction. The fixing device 56 fixes the lower cleaning piping 59 to the second supply unit 51B when attached to the connecting member 55. The fixing device 56 releases the fixation of the lower cleaning piping 59 to the second supply unit 51B when removed from the connecting member 55.

[0049] As shown in Figures 8(a), 8(b), and 8(c), the fixing device 56 has a gripping portion 56a and engaging portions 56b and 56c. As shown in Figure 8(c), the fixing device 56 is L-shaped. The gripping portion 56a is a portion that is gripped (held) by an operator. The gripping portion 56a is a plate-like member that extends in one direction. The engaging portions 56b and 56c are provided at the longitudinal ends of the gripping portion 56a. The engaging portions 56b and 56c are plate-like members. The engaging portions 56b and 56c are approximately perpendicular to the gripping portion 56a. The engaging portions 56b and 56c extend from the ends of the gripping portion 56a. The engaging portions 56b and 56c extend parallel to each other. As shown in FIG. 8(b), the engagement portions 56b and 56c are provided with curved recesses 56d and 56e.

[0050] The fixture 56 is provided so as to be attachable to the upper side of the connecting member 55. The connecting member 55 is provided with a pair of attachment portions 55a to which the engaging portions 56b, 56c of the fixture 56 are attached. A groove 59a is provided on the side of the lower cleaning piping 59 at a position corresponding to the attachment portions 55a. The engaging portions 56b, 56c of the fixture 56 engage with the groove 59a of the lower cleaning piping 59 when the fixture 56 is attached to the attachment portions 55a of the connecting member 55. At this time, the recesses 56d, 56e of the engaging portions 56b, 56c abut against the lower cleaning piping 59. As a result, the engaging portions 56b, 56c of the fixture 56 are positioned across the attachment portions 55a of the connecting member 55 and the groove 59a of the lower cleaning piping 59, so that the connecting member 55 does not come off the lower cleaning piping 59. When the fixing member 56 is removed from the connecting member 55, it becomes possible to pull the connecting member 55 upward relative to the second supply portion 51B.

[0051] 3 and 4, the connection part 52 connects the water intake part 50 and the supply part 51. The connection part 52 has a flat shape in which the width dimension is greater than the height dimension in a cross section perpendicular to the extension direction of the flow path through which the cleaning water flows from the water intake part 50 to the supply part 51. As shown in FIG. 4, the bottom surface 52a of the connection part 52, which forms the flow path for the cleaning water, is an inclined surface that slopes upward from the water intake part 50 to the supply part 51. In other words, the bottom surface 52a is an inclined surface that slopes downward from the supply part 51 to the water intake part 50. As a result, when the wash pump 5 is not operating, the cleaning water flows from the supply part 51 side to the water intake part 50 side.

[0052] The upper surface 52b of the connecting portion 52 is flat. The upper surface 52b forms a mounting base for the detergent supply pump 8. That is, the detergent supply pump 8 is disposed on the upper surface 52b of the connecting portion 52. The upper surface 52b is provided with a threaded hole 52c that threadably engages with a screw N that fixes the detergent supply pump 8 to the connecting portion 52.

[0053] The machine chamber 1A forms a space extending in the front-to-rear and left-to-right directions when viewed vertically. As shown in FIG. 9, in the machine chamber 1A, the rinsing tank 6 is located on the right side in the left-to-right direction. In the machine chamber 1A, the cleaning tank 20 is located on the left side in the left-to-right direction. The cleaning tank 20 extends with the front-to-rear direction as its longitudinal direction. The rinsing pump 7 is located on the front side (one side) of the rinsing tank 6 in the front-to-rear direction and in line with the rinsing tank 6 in the front-to-rear direction. The supply unit 51 of the cleaning pump 5 is located between the cleaning tank 20 and the rinsing tank 6 in the left-to-right direction.

[0054] As shown in FIG. 10, in the cleaning pump 5, the water intake section 50 and at least a portion of the connection section 52 are located below the cleaning tank 20 when the cleaning tank 20 and the water intake section 50 are connected. A space is formed between the cleaning tank 20 and the bottom 1D of the machine room 1A in which the water intake section 50 and the connection section 52 can be arranged. The cleaning pump 5 is movable in the front-to-rear direction when the water intake section 50 is detached from the cleaning tank 20. The cleaning pump 5 can slide on the top surface of the bottom 1D of the machine room 1A.

[0055] As shown in FIG. 11 , a plurality of mounting portions 1E are provided on the bottom 1D of the machine room 1A. In this embodiment, five mounting portions 1E are provided. The mounting portions 1E are arranged at positions where the supply unit 51 of the cleaning pump 5 is arranged when the cleaning pump 5 is connected to the cleaning tank 20. The mounting portions 1E protrude upward from the bottom 1D. The mounting portions 1E have a truncated cone shape. The mounting portion 1E is composed of a mounting surface 1Ea and an inclined surface 1Eb. The mounting surface 1Ea has a circular shape when viewed vertically. The inclined surface 1Eb guides the cleaning pump 5 from the bottom to the mounting surface 1Ea when the cleaning pump 5 moves back and forth and is placed on the mounting surface 1Ea.

[0056] As shown in Figures 9 and 12, a stopper 1F is provided at the rear end of the machine chamber 1A. The stopper 1F determines the position of the wash pump 5. The stopper 1F abuts against the supply portion 51 of the wash pump 5. When the wash pump 5 moves rearward, the stopper 1F abuts against the supply portion 51 of the wash pump 5, thereby determining the position of the wash pump 5 in the front-to-rear direction.

[0057] Next, a method for removing the washing pump 5 when performing maintenance on the washing pump 5 will be described.

[0058] As shown in FIG. 13, first, the lower front panel 11D (see FIG. 1) is removed to open the space of the machine chamber 1A. Next, as shown in FIG. 14, the power supply box 1G equipped with the power switch SW is removed from the machine chamber 1A. Next, the rinsing pipe 77 is removed from the rinsing pump 7 and removed from the machine chamber 1A. Also, the lower rinsing pipe 79 is removed and removed from the machine chamber 1A. Next, the rinsing pump 7 is released from the bottom 1D of the machine chamber 1A, and the rinsing pump 7 is disconnected from the rinsing tank 6. Then, the rinsing pump 7 is removed from the machine chamber 1A, and then the rinsing tank 6 is removed from the machine chamber 1A.

[0059] Next, the bolt B (see FIG. 5) inside the cleaning tank 20 is removed to disconnect the cleaning tank 20 from the water intake section 50 of the cleaning pump 5. Next, the fastener 56 is pulled forward and removed from the connecting member 55. This makes it possible to remove the lower cleaning piping 59 from the second supply section 51B of the cleaning pump 5. Specifically, the connecting member 55 is lifted (slid) upward to release the lower cleaning piping 59 from the second supply section 51B. Next, the connection between the first supply section 51A of the cleaning pump 5 and the upper cleaning piping 58 is released. Specifically, the cleaning pump 5 is slid to the right (toward the space where the rinsing tank 6 is located) to pull the first supply section 51A out from below the cleaning tank 20 and remove the upper cleaning piping 58 from the first supply section 51A. Then, the cleaning pump 5 is slid forward in the front-to-rear direction. This allows the cleaning pump 5 to be removed from the machine room 1A, as shown in FIG. 15.

[0060] Next, a method for attaching the wash pump 5 will be described.

[0061] To attach the cleaning pump 5 to the machine room 1A, place the cleaning pump 5 on the bottom 1D of the machine room 1A and move it rearward in the front-to-rear direction until it abuts against the stopper 1F. This positions the cleaning pump 5 in the front-to-rear direction. Next, slide the cleaning pump 5 to the left to connect the upper cleaning piping 58 to the first supply unit 51A. The supply unit 51 of the cleaning pump 5 rides up onto the mounting unit 1E and is placed on the mounting surface 1Ea. The water intake unit 50 of the cleaning pump 5 is also connected to the cleaning tank 20. Specifically, the water intake unit 50 is placed on the first surface S1, and the pump guard 26 is placed on the second surface S2. Then, bolts B are attached to secure the pump guard 26 and the water intake unit 50 to the fixing unit 20c. At this time, the water intake unit 50 floats up, and the height position of the bottom of the water intake unit 50 and the height position of the bottom of the supply unit 51 placed on the mounting surface 1Ea become the same.

[0062] Next, the rinsing tank 6 is installed, and the rinsing pump 7 is installed. Next, the lower cleaning pipe 59 is connected to the second supply unit 51B. Specifically, the connecting member 55 is slid downward to insert the connecting member 55 into the second supply unit 51B, connecting the second supply unit 51B and the lower cleaning pipe 59. Then, the fixing device 56 is attached to the connecting member 55. Next, the rinsing pipe 77 and the lower rinsing pipe 79 are attached, and the rinsing pipe 77 is connected to the rinsing pump 7. Next, the power supply box 1G is attached. Finally, the lower front panel 11D (see FIG. 1) is attached.

[0063] Next, the effects of the dishwasher 100 of this embodiment will be described. In the dishwasher 100 of the above embodiment, the connection portion 52 of the wash pump 5 has a flat shape in which the width dimension is greater than the height dimension. As a result, in a configuration in which the water intake portion 50 is connected to the lower portion of the wash tank 20, at least a portion of the connection portion 52 can be positioned below the wash tank 20 without requiring space in the height direction of the space in the machine chamber 1A. Furthermore, the wash tank 20 extends longitudinally in the front-to-rear direction, and the supply portion 51 is arranged side by side with the wash tank 20 in the left-to-right direction when connected. In this configuration, the water intake portion 50 is detachably provided to the wash tank 20, and the wash pump 5 can be moved in the front-to-rear direction when the water intake portion 50 is removed from the wash tank 20. Therefore, in the dishwasher 100, when maintenance of the wash pump 5 is performed, the water intake portion 50 can be removed from the wash tank 20, and the wash pump 5 can be pulled out without the supply portion 51 coming into contact with the wash tank 20. As described above, in dishwasher 100, the ease of maintenance of wash pump 5 can be improved.

[0064] In the dishwasher 100 according to this embodiment, the machine chamber 1A is provided with a lower front panel 11D at the front in the front-to-rear direction, which opens the space to the outside of the machine chamber 1A. In this configuration, the lower front panel 11D provided at the front in the front-to-rear direction of the machine chamber 1A is removed to open the machine chamber 1A, and the wash pump 5 can be removed or installed through the opened area.

[0065] In the dishwasher 100 according to this embodiment, the rinsing pump 7 is arranged in front of the rinsing tank 6 in the front-to-rear direction and in line with the rinsing tank 6 in the front-to-rear direction. The supply section 51 of the washing pump 5 is arranged left-to-right between the washing tank 20 and the rinsing tank 6. In this configuration, the washing pump 5 is arranged on the rear side in the front-to-rear direction (opposite the front side where the lower front panel 11D is provided). Even in this configuration where the washing pump 5 is arranged on the far side of the portion opened for maintenance, the washing pump 5 can be moved in the front-to-rear direction, so the washing pump 5 can be removed for maintenance.

[0066] In the dishwasher 100 according to this embodiment, the tip 51Ba of the second supply portion 51B of the wash pump 5 extends vertically. The base 51Bb of the second supply portion 51B is integrally formed with a portion of the connecting portion 52. The wash jet holes 41 of the lower nozzle 4, which are located below the wash chamber 1B, and the second supply portion 51B of the wash pump 5, which is located below the wash chamber 1B, are positioned close to each other in the height direction. Therefore, the tip 51Ba of the second supply portion 51B must extend vertically and be raised. With this configuration, a load is applied to the tip 51Ba, which may result in water leakage. Therefore, the base 51Bb of the second supply portion 51B is integrally formed with a portion of the connecting portion 52. This increases the strength of the second supply portion 51B, thereby reducing water leakage.

[0067] The dishwasher 100 according to this embodiment includes a fixture 56 that is attached to the second supply unit 51B and the lower flushing pipe 59 of the wash pump 5 to secure the lower flushing pipe 59 to the second supply unit 51B, and that is detached from the second supply unit 51B and the lower flushing pipe 59 to release the fixation of the lower flushing pipe 59 to the second supply unit 51B. The fixture 56 is detachable in the front-to-rear direction relative to the second supply unit 51B and the lower flushing pipe 59. With this configuration, the fixation of the lower flushing pipe 59 to the second supply unit 51B and the release of the fixation of the lower flushing pipe 59 to the second supply unit 51B can be achieved by attaching and detaching the fixture 56 in the front-to-rear direction. In this way, the fixture 56 can be attached and detached by operating the fixture 56 in the front-to-rear direction, which is the same as the movement direction of the wash pump 5, thereby improving maintainability.

[0068] In the dishwasher 100 according to this embodiment, the bottom 1D of the machine chamber 1A is provided with a plurality of mounting sections 1E that protrude above the bottom 1D at positions where the supply sections 51 will be located when the wash pump 5 and the wash tank 20 are connected. The mounting sections 1E have a mounting surface 1Ea on which the supply sections 51 are placed, and an inclined surface 1Eb that guides the wash pump 5 from the bottom 1D to the mounting surface 1Ea when the wash pump 5 moves in the front-to-rear direction and is placed on the mounting surface 1Ea. With this configuration, when the wash pump 5 is moved in the front-to-rear direction to connect the wash tank 20 and the water intake section 50, the supply sections 51 ride up onto the mounting surface 1Ea via the inclined surface 1Eb of the mounting sections 1E. As a result, when the supply sections 51 ride up onto the mounting sections 1E, the height of the water intake section 50 also increases. Therefore, when the cleaning tank 20 and the water absorption section 50 are connected, the supply section 51 does not float, which prevents stress from being applied to the connection section between the cleaning tank 20 and the water absorption section 50. Therefore, it is possible to prevent cleaning water from leaking from the connection section between the cleaning tank 20 and the water absorption section 50.

[0069] The dishwasher 100 according to this embodiment includes a pump guard 26 disposed in the through-hole 20b of the wash tank 20 to prevent foreign matter from entering the wash pump 5. The wash tank 20 is provided with a fixing portion 20c having a first surface S1 to which the water intake portion 50 is connected and a second surface S2 opposite the first surface S1 on which the pump guard 26 is disposed. The pump guard 26 and the water intake portion 50 are fixed to the fixing portion 20c with the same bolt B. In this configuration, the water intake portion 50 is disposed on the first surface S1 and the pump guard 26 is disposed on the second surface S2, and the bolt B is attached to fix the pump guard 26 and the water intake portion 50 to the fixing portion 20c. This improves the ease of assembly of the pump guard 26 and the water intake portion 50 to the fixing portion 20c compared to when the pump guard 26 and the water intake portion 50 are each fixed to the fixing portion 20c with separate fixing members.

[0070] The dishwasher 100 according to this embodiment is equipped with a detergent supply pump 8 that supplies detergent to the wash water. The top surface 52b of the connection part 52 of the wash pump 5 is flat, and the top surface 52b forms a mounting base for the detergent supply pump 8 supply device. In this configuration, the top surface 52b of the connection part 52 of the wash pump 5 forms the mounting base for the detergent supply pump 8, so there is no need to provide a separate base for attaching the detergent supply pump 8. This reduces the number of parts. Furthermore, the space above the connection part 52 of the wash pump 5 can be used effectively.

[0071] In dishwasher 100 according to this embodiment, drain hole 50b is provided in bottom portion 54 of suction section 50 of wash pump 5. At connection section 52 of wash pump 5, bottom surface 52a, which forms the flow path for wash water, is an inclined surface that slopes upward from suction section 50 toward supply section 51. As a result, when overflow pipe 27 for draining wash water is removed while wash pump 5 is not operating, wash water flows from supply section 51 toward suction section 50 and is discharged from drain hole 50b. This prevents wash water from remaining in wash pump 5.

[0072] In the dishwasher 100 according to this embodiment, a stopper 1F is provided at the rear end of the machine chamber 1A. The stopper 1F determines the position of the wash pump 5. When the wash pump 5 moves rearward, the stopper 1F comes into contact with the supply portion 51 of the wash pump 5, thereby determining the position of the wash pump 5 in the front-to-rear direction. This configuration makes it easy to position the wash pump 5.

[0073] In the dishwasher 100 according to this embodiment, the pump guard 26 is a circular, plate-shaped member with multiple elongated holes formed therethrough in the thickness direction. By making the pump guard 26 flat in this way, the distance between the pump guard 26 and the bottom portion 54 of the water intake portion 50 of the wash pump 5 can be shortened. Therefore, even if a large foreign object (such as a chopstick) enters the insertion hole 26a of the pump guard 26 when the overflow pipe 27 is removed, the short distance (narrow width) between the underside of the pump guard 26 and the bottom portion 54 of the water intake portion 50 makes it difficult for the foreign object to be sucked into the wash pump 5. This prevents the foreign object from flowing into the wash pump 5.

[0074] In dishwasher 100 according to this embodiment, pump guard 26 has insertion hole 26a, into which overflow pipe 27 is inserted, burred. As a result, when overflow pipe 27 is inserted into pump guard 26, overflow pipe 27 can be guided by burred insertion hole 26a. Furthermore, burring insertion hole 26a of pump guard 26 shortens the distance between pump guard 26 and bottom portion 54 of water intake section 50 of wash pump 5. Therefore, when overflow pipe 27 is removed from pump guard 26, foreign matter can be further prevented from entering wash pump 5.

[0075] Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0076] In the above embodiment, an example was described in which dishwasher 100 includes overflow pipe 27, and when overflow pipe 27 is removed from drain hole 50b of wash pump 5, wash water stored in wash tank 20 is discharged through through hole 20b and drain hole 50b. However, dishwasher 100 does not necessarily have to include overflow pipe 27. In this configuration, as shown in FIG. 16, wash pump 5 may have drain path section 57A that forms part of the drain path that discharges wash water discharged from wash tank 20 to the outside. Drain path section 57A is provided integrally with at least a portion of water intake section 50, supply section 51, and connection section 52. In the example shown in FIG. 16, drain path section 57A is integrally molded from resin with water intake section 50, supply section 51, and connection section 52.

[0077] The drainage path 57A is connected to the water intake section 50. Cleaning water flows into the drainage path 57A from the water intake section 50, flows in the direction shown by the arrow, and is discharged from the supply section 51 side. In the example shown in FIG. 16, the cleaning water is discharged in the same direction as the first supply section 51A. In this configuration, the drainage path 57A is provided integrally with the water intake section 50, the supply section 51, and the connection section 52 in the cleaning pump, thereby reducing the number of parts. This improves ease of assembly.

[0078] The wash pump 5 may also have a supply path portion 57B that constitutes a part of the supply path that supplies rinsing water to the rinsing tank 6. The supply path portion 57B is in contact with at least a part of the drainage path portion 57A. In the example shown in FIG. 16 , the supply path portion 57B is provided along the side of the drainage path portion 57A. The supply path portion 57B is integrally molded with the drainage path portion 57A using resin. Water is supplied to one end of the supply path portion 57B from an external water source. The other end of the supply path portion 57B is connected to the rinsing tank 6 via a pipe. Water flows through the supply path portion 57B in the direction indicated by the arrow, supplying water to the rinsing tank 6. At the part where the supply path portion 57B and the drainage path portion 57A are in contact, heat exchange occurs between the water flowing through the supply path portion 57B and the wash water flowing through the drainage path portion 57A. In this way, since the supply path section 57B is in contact with at least a portion of the drainage path section 57A, heat exchange occurs between the water flowing through the supply path section 57B and the cleaning water flowing through the drainage path section 57A, and the cleaning water flowing through the drainage path section 57A can heat the water flowing through the supply path section 57B.

[0079] <Other variations> In the above embodiment and modified example, the bottom surface 52a of the connection portion 52 of the wash pump 5 is an inclined surface. However, the bottom surface 52a does not have to be an inclined surface.

[0080] In the above embodiment and modified examples, the rack rail 23 is described as being formed integrally with the side panel 2A by extrusion processing, but the rack rail 23 may also be formed by attaching other components to the inner surface of the side panel 2A.

[0081] The above-described embodiments and variations can be applied not only to a dishwasher 100 having a door 15 on the front side of the main body 1, but also to dishwashers having a door that opens and closes vertically, for example.

[0082] In the above embodiment and modified example, the dishwasher 100 is described as being configured such that rinsing water is supplied to the upper nozzle 3 and the lower nozzle 4 from the rinsing tank 6 built into the machine chamber 1A of the main body 1, but the present invention is not limited to this. For example, the present invention may be applied to a dishwasher configured such that rinsing water is supplied to the upper nozzle 3 and the lower nozzle 4 from a gas booster or an electric booster that is provided outside the main body 1 of the dishwasher 100 and that heats water stored in the rinsing tank with a heating source such as gas or electricity.

[0083] The present invention may be realized by appropriately combining the above-described embodiments and other modified examples. [Explanation of symbols]

[0084] 1A...machine chamber, 1B...washing chamber, 1E...placing portion, 1Ea...placing surface, 1Eb...inclined surface, 5...washing pump, 6...rinsing tank, 7...rinsing pump, 20...washing tank, 20b...through hole (drain outlet), 20c...fixing portion, 26...pump guard, 31, 41...cleaning jet holes (first cleaning jet hole, second cleaning jet hole), 33, 43...rinsing jet holes, 50...water intake portion, 51...supply portion, 51A...first supply portion, 51B...second supply portion, 51Ba...tip portion, 51Bb...base end portion, 52...connection portion, 52b...upper surface, 56...fixing device, 57A...drainage path portion, 57B...supply path portion, 100...dishwasher (washing machine), B...bolt (fixing member), S1...first surface, S2...second surface.

Claims

1. A washing machine that washes objects housed in a washing chamber, a cleaning tank for storing cleaning water for cleaning the object to be cleaned; a cleaning pump that sprays the cleaning water stored in the cleaning tank from a cleaning spray hole into the cleaning chamber; a rinse pump that sprays rinse water for rinsing the object to be washed from a rinse spray hole into the cleaning chamber; a machine room that defines a space extending in a first direction and a second direction perpendicular to the first direction when viewed vertically, in which the cleaning tank, the cleaning pump, and the rinsing pump are disposed, and that is disposed below the cleaning chamber; The cleaning pump has a water intake section connected to the bottom of the cleaning tank to absorb the cleaning water in the cleaning tank, a supply section that supplies the cleaning water to the cleaning injection hole, and a connection section that connects the water intake section and the supply section, and the water intake section, the supply section, and the connection section are integrally provided, the connecting portion has a flat shape in which a width dimension is greater than a height dimension in a cross section perpendicular to an extension direction of a flow path through which the cleaning water flows from the water absorption portion to the supply portion, The cleaning tank extends with the first direction as a longitudinal direction, the water intake section and at least a part of the connection section are located below the cleaning tank in a connected state in which the cleaning tank and the water intake section are connected; the supply unit is arranged to be aligned with the cleaning tank in the second direction in the connected state, The water absorption section is detachably provided with respect to the cleaning tank, A washing machine, wherein the washing pump is movable in the first direction when the water intake part is detached from the washing tank.

2. The washing machine according to claim 1 , wherein the machine chamber is provided with a cover on one side in the first direction, the cover opening the space to the outside of the machine chamber.

3. a rinsing tank for storing the rinsing water; the rinse pump is disposed on the one side of the rinse tank in the first direction and in line with the rinse tank in the first direction; The washing machine according to claim 2 , wherein the supply unit is disposed between the washing tank and the rinsing tank in the second direction.

4. the cleaning jet holes include a first cleaning jet hole that jets the cleaning water into the cleaning chamber from an upper side of the cleaning chamber and a second cleaning jet hole that jets the cleaning water into the cleaning chamber from a lower side of the cleaning chamber, the supply unit of the cleaning pump includes a first supply unit that supplies the cleaning water to the first cleaning jet hole and a second supply unit that supplies the cleaning water to the second cleaning jet hole, a first pipe connecting the first cleaning injection hole and the first supply unit; a second pipe connecting the second cleaning injection hole and the second supply unit, a tip end of the second supply portion extends in the vertical direction, The cleaning machine according to any one of claims 1 to 3, wherein a base end of the second supply part is integrally formed with a part of the connection part.

5. a fixture that is attached to the second supply unit and the second piping to fix the second piping to the second supply unit, and that is detached from the second supply unit and the second piping to release the fixation of the second piping to the second supply unit, The cleaning machine according to claim 4 , wherein the fixing device is detachably attached to the second supply unit and the second pipe in the first direction.

6. one or more mounting portions are provided at a bottom of the machine chamber at positions where the supplying portion is disposed in the connected state, the mounting portions protruding above the bottom, A cleaning machine as described in any one of claims 1 to 5, wherein the mounting portion has a mounting surface on which the supply portion is mounted, and an inclined surface that guides the cleaning pump from the bottom to the mounting surface when the cleaning pump moves in the first direction and is mounted on the mounting surface.

7. a pump guard disposed at a drain outlet of the cleaning tank to prevent foreign matter from entering the cleaning pump from the cleaning tank; the drain port of the cleaning tank is provided with a fixing portion having a first surface to which the water intake portion is connected and a second surface located opposite the first surface and on which the pump guard is disposed; The washer according to any one of claims 1 to 6, wherein the pump guard and the water intake section are fixed to the fixing section by the same fixing member.

8. a supply device for supplying detergent to the cleaning water; The cleaning machine according to any one of claims 1 to 7, wherein an upper surface of the connecting portion is flat, and the upper surface forms a mounting base for the supply device.

9. The washing pump has a drainage path portion that constitutes a part of a drainage path that discharges the washing water discharged from the washing tank to the outside, The washer according to any one of claims 1 to 8, wherein the drainage path portion is provided integrally with at least a part of the water absorption portion, the supply portion, and the connection portion.

10. a rinsing tank for storing the rinsing water; the washing pump has a supply path portion that constitutes a part of a supply path that supplies the rinsing water to the rinsing tank, The washing machine according to claim 9 , wherein the supply path portion is in contact with at least a portion of the drain path portion.

11. A cleaning machine described in any one of claims 1 to 10, wherein the water absorption section is connected to the lower part of the cleaning tank by a fixing member provided within the cleaning tank.

Images