A cleaning machine

Abstract

The present application relates to a kind of cleaning machines, the inside of machine body has cleaning cavity, cleaning cavity has the end water outlet mechanism for washing tableware, and the bottom of the cleaning cavity also has residue collection area, pump water mechanism is used to pump water in cleaning cavity into end water outlet mechanism, wherein the power output end of driver is drivingly connected with the power output end of pump water mechanism, the water inlet end of injection channel is in fluid communication with flow guide channel, and the water outlet end is located in residue collection area, cleaning water is pumped into end water outlet mechanism by pump water mechanism, the washing of tableware is realized, in addition to realizing the supply to end water outlet mechanism, pump water mechanism can also simultaneously realize the water supply to injection channel using the same flow guide channel according to the characteristics of pump water, since the water outlet end of injection channel is located in residue collection area, the jet of its water flow can realize the washing of residue collection area, so as to avoid residue to remain in cleaning cavity.

Description

Technical Field

[0001] This invention relates to the field of kitchen cleaning equipment, specifically a cleaning machine. Background Technology

[0002] Kitchen cleaning machines are common kitchen cleaning equipment, and their emergence has greatly reduced the labor intensity of kitchen work. Existing kitchen cleaning machines usually have a pump structure inside the machine body. The pump structure is used to pump water to the end water outlet parts such as the spray arms, thereby filling the entire cleaning chamber of the machine with cleaning water.

[0003] For example, the applicant's earlier Chinese invention patent application, CN201410848627.2, disclosed "An Open-Type Water Pump and Its Application". In this open-type water pump, the lower part of the impeller is an open structure exposed outside the casing, while the upper part of the impeller is located in the casing and closed at the top. The end cap helps to avoid the formation of vortices between the upper end of the impeller and the top wall of the accommodating cavity, reducing energy loss, increasing the work done on the fluid, thereby increasing the water flow rate of the spray arm and thus improving the cleaning effect.

[0004] While the aforementioned water pumps achieved good results, centrifugal pump systems with blades are affected by differences in the motor's operating parameters. Furthermore, the dynamic and static interference between the blades and the localized areas of the volute during blade rotation inevitably leads to higher noise levels. Additionally, the decrease in liquid density after foaming reduces the output capacity and the head of the spray arm, which is detrimental to dishwashing. Moreover, the existing pump structure only supplies water to the final outlet section and lacks strong integration with the sludge collection module, thus failing to clean the sludge collection area. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a cleaning machine that can rinse the slag collection area while pumping water, in light of the current state of the prior art.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine that enhances the rinsing force of water flow by using a pulse water supply method, in view of the current state of the prior art.

[0007] The third technical problem to be solved by the present invention is to provide a cleaning machine that avoids leaving rinsing dead corners in the residue collection area, in light of the current state of the prior art.

[0008] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: a cleaning machine, comprising:

[0009] The machine body has a cleaning chamber inside, which has a water outlet mechanism for rinsing tableware, and the bottom of the cleaning chamber also has a residue collection area.

[0010] The water pumping mechanism, located inside the machine body, is used to pump water from the cleaning chamber to the end water outlet mechanism. It has a flow guide channel inside, with the inlet end of the flow guide channel in fluid communication with the cleaning chamber and the outlet end in fluid communication with the end water outlet mechanism.

[0011] The driver, whose power output end is connected to the power output end of the pumping mechanism;

[0012] The spray channel has its inlet end in fluid communication with the guide channel, and its outlet end located in the residue collection area.

[0013] The residue collection area can be formed in different ways. Preferably, the bottom of the cleaning chamber has a recessed drain groove that forms the residue collection area. The pump mechanism is arranged below the drain groove and has an upwardly extending water guide pipe that extends into the residue collection area. The water guide pipe has the spray channel inside.

[0014] To ensure smooth water flow during the supply of cleaning water, preferably, the pumping mechanism also has a valve body, the valve body is hollow to form a valve cavity, the lower end of the water guide pipe extends into the valve cavity, the valve body is also provided with an inlet channel and an outlet channel, the inlet channel is connected to the outlet channel through the valve cavity, thereby forming the flow guiding channel.

[0015] The water flow for rinsing can be continuous. To further address the second technical problem mentioned above, preferably, the technical solution adopted in this invention is as follows: the pumping mechanism also has a piston for pumping cleaning water. This piston is movably arranged within the valve chamber, and both the inlet and outlet water channels are located on the side of the valve body so that the flow direction of the fluid in the spray channel intersects with the flow direction of the fluid in the guide channel. Furthermore, a first guide hole is provided on the side wall of the guide pipe for the piston to pump water from the guide channel to the spray channel. By installing a piston within the valve chamber, the reciprocating movement of the piston allows the entire pumping mechanism to output a pulsed water flow. Since the pumping mechanism itself can simultaneously supply water to the end outlet mechanism and the spray channel, the pulsed water flow, in addition to cleaning tableware, also enhances the rinsing of residue in the residue collection area. Under the same water conditions, the impact force generated by intermittent pulses is far greater than that of continuous water supply, resulting in a better rinsing effect.

[0016] To avoid interference between the sprayed water flow and the main cleaning water in the main channel, preferably, there are at least two first guide holes, arranged opposite each other and spaced apart on both sides of the circumference of the guide pipe, and both extending through the wall thickness of the guide pipe, thus ensuring unobstructed flow in the direction of fluid flow within the guide channel. This special inlet design allows the guide pipe to output rinsing water to the residue collection area without affecting the flow of the original water path within the guide channel. Furthermore, under the pulse rinsing method, the water outlets from the two channels create a relative vacuum state within the valve chamber for a very short time, generating a siphon effect and increasing the impact force of the next water flow. This provides benefits for both rinsing tableware and rinsing the residue collection area.

[0017] To further ensure the smooth flow, preferably, one of the first guide holes is arranged opposite to the outlet end of the inlet channel, and one of the remaining first guide holes is arranged opposite to the inlet end of the outlet channel.

[0018] To facilitate the reciprocating movement of the piston by the actuator, preferably, one end of the piston in the direction of movement is exposed outside the valve cavity, and the output end of the actuator is arranged adjacent to the valve body and drivenly connected to the piston.

[0019] Specifically, the valve body extends vertically and has a guide hole at its bottom for the lower end of the piston to pass through. The output shaft of the driver is provided with a cam, and the outer edge of the cam abuts against the lower end of the piston, thereby intermittently acting on the piston.

[0020] The actuator can drive the piston to reciprocate in various ways. Preferably, the lower end of the piston is provided with a transmission wheel, the rotation axis of which extends in the same direction as the cam, and the outer edge of the cam contacts and abuts against the outer edge of the transmission wheel.

[0021] Specifically, the piston has two downwardly extending connecting seats at its bottom, the two connecting seats being arranged opposite each other and spaced apart, and the transmission wheel being rotatably constrained between the two connecting seats by a rotating shaft passing through the two connecting seats.

[0022] To facilitate the reset of the piston, preferably, a first elastic element is also provided in the valve cavity. The first elastic element acts on the piston so that the piston always has a downward tendency.

[0023] The spray channel can be formed in different ways. Preferably, a water distribution seat is provided inside the water guide pipe. The upper end of the water distribution seat extends above the water guide pipe. The interior of the water distribution seat is hollow to form the spray channel. The upper end of the water distribution seat has a spray port that communicates with the spray channel. A second guide hole that communicates with the first guide hole is opened on the side wall of the water distribution seat.

[0024] To ensure a relatively uniform water flow, preferably, there are at least two spray nozzles, each of which is located on the side of the upper end of the water distribution seat and is spaced apart around the circumference of the water distribution seat.

[0025] To further solve the third technical problem mentioned above, the technical solution adopted by the present invention is as follows: the water distribution seat extends along the length of the water guide pipe and is arranged to rotate relative to the water guide pipe about its own axis.

[0026] There are various structures for achieving the deflection of the water distribution seat. Preferably, the water guide pipe also has a stop structure for driving the deflection of the water distribution seat. The stop structure has a rotating inner core, at least two first stop grooves, and at least two second stop grooves with a height difference from the first stop grooves. Furthermore, each of the first stop grooves and each of the second stop grooves is staggered in the circumferential direction of the water guide pipe. The rotating inner core has at least two positioning teeth. The rotating inner core is arranged to be able to move along the axial direction of the water guide pipe so that each positioning tooth moves alternately into the first stop groove and the second stop groove, thereby driving the rotating inner core to rotate. Through the design of the gear structure, the rotating inner core can convert its axial movement relative to the water guide pipe into the jumping of its positioning teeth between the first and second gear slots. After the positioning teeth disengage from the previous first gear slot, they can automatically jump to the adjacent second gear slot under the action of axial force. After disengaging from the second gear slot, they can also automatically jump to the next first gear slot under the action of axial force. Therefore, while the entire rotating inner core is moving axially back and forth, it can rotate slightly in the jumping direction of the positioning teeth, so that the entire water distribution seat rotates around its own axis by the same amount. In this way, the above-mentioned spray nozzle can achieve more uniform spraying of cleaning water and avoid leaving spray dead corners in the residue collection area.

[0027] To ensure smooth axial movement of the rotating inner core relative to the water guide pipe, thereby performing rotational actions at the corresponding positions, preferably, each of the positioning teeth is spaced apart on the outer peripheral wall of the rotating inner core, and the inner wall of the water guide pipe is provided with at least two guide ribs in the circumferential direction. Each guide rib extends along the axis of the water guide pipe, and a guide groove for axial movement of the rotating inner core is formed between two adjacent guide ribs. The first stop groove is opened on the upper end face of the corresponding guide rib.

[0028] Specifically, the gear position structure also includes a gear position seat, which is arranged near the lower end of the water guide pipe, and each of the second gear position grooves is spaced apart on the periphery of the upper end of the gear position seat. Furthermore, the upper end of the gear position seat is located below the upper end of each of the guide ribs, so that the second gear position grooves and the first gear position grooves form a height difference.

[0029] To ensure that the positioning teeth of the rotating inner core can automatically slide into the corresponding first and second stop slots, preferably, each first stop slot end face has a first guide slope for guiding the positioning teeth into the adjacent second stop slot, and the end face of the second stop slot has a second guide slope for guiding the positioning teeth into the adjacent first stop slot. The second guide slope and the adjacent first guide slope have a height difference, and each first guide slope and each second guide slope are arranged downward along the rotation direction of the rotating inner core, thereby forming the same rotation direction as a whole. The lower end of the stop seat abuts against the piston, thereby linking with the piston. The rotating inner core is rotatably constrained on the stop seat, thereby reciprocating relative to the axial direction of the water guide pipe under the movement action of the stop seat. The second elastic element acts on the water distribution seat, so that the water distribution seat, the rotating inner core and the stop seat always have a downward movement tendency.

[0030] To ensure the reset of the rotating inner core after axial movement, preferably, the outer wall of the water distribution seat has a flange extending radially outward, and the second elastic element is sleeved on the water distribution seat, with its two ends abutting against the flange and the inner side of the top of the water guide pipe, respectively.

[0031] To prevent the water guide pipe from slipping and disengaging from the piston, preferably, the upper end of the piston has a limiting groove, and the lower end of the stop seat has a guide post extending below the water guide pipe. The guide post is constrained within the limiting groove and abuts against the bottom wall of the limiting groove, thereby causing the stop seat to drive the rotating inner core to move axially relative to the water guide pipe.

[0032] The first elastic element can be arranged in different ways. Preferably, the first elastic element is arranged around the water pipe, and its lower end is limited in the limiting groove, while its upper end abuts against the inner wall of the valve cavity.

[0033] Preferably, the end water outlet mechanism includes at least a spray arm, which is arranged to rotate relative to the cleaning chamber and extends vertically along its rotation axis. The spray arm has at least two spray holes, and the water outlet channel is in fluid communication with each of the spray holes.

[0034] Specifically, the valve body has a vertically extending water outlet seat with its upper end extending into the cleaning chamber, and the spray arm is rotatably constrained on the water outlet seat.

[0035] To prevent backflow of cleaning water, preferably, the inlet channel is provided with a first one-way valve that allows fluid to flow from the inlet channel into the valve chamber only, and the outlet channel is provided with a second one-way valve that allows liquid to flow from the valve chamber into the outlet channel only.

[0036] To facilitate the collection of food scraps, preferably, the drain trough is covered with a drain plate at its opening, and a scrap collection basket is provided on the drain plate, with the water outlet of the spray channel arranged adjacent to the scrap collection basket.

[0037] Compared with the prior art, the advantages of the present invention are as follows: the cleaning machine pumps the cleaning water to the end water outlet mechanism through the water pumping mechanism, thereby rinsing the tableware. In addition to supplying water to the end water outlet mechanism, the water pumping mechanism can also supply water to the spray channel simultaneously through the same guide channel according to the characteristics of the pumped water. Since the water outlet of the spray channel is located in the residue collection area, the spray of water can rinse the residue collection area, thereby preventing residue from remaining in the cleaning chamber. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the overall structure of the cleaning machine in an embodiment of the present invention;

[0039] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0040] Figure 3 for Figure 1 A schematic diagram with some structures omitted;

[0041] Figure 4 for Figure 1 A sectional view from the first angle;

[0042] Figure 5 for Figure 1 A sectional view from a second angle;

[0043] Figure 6 This is a cross-sectional view of the overall structure of the pulse generation module in an embodiment of the present invention;

[0044] Figure 7 for Figure 6 A cross-sectional view from another angle;

[0045] Figure 8 This is a schematic diagram of the fluid flow direction within the guide channel in an embodiment of the present invention;

[0046] Figure 9 This is an overall schematic diagram of the valve body in an embodiment of the present invention;

[0047] Figure 10 This is a schematic diagram of the water pipe in an embodiment of the present invention. Detailed Implementation

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0049] like Figures 1 to 10The image shows a preferred embodiment of the present invention. In this embodiment, the washing machine includes a body 1, a water pumping mechanism 3, a driver 32, and a spray channel 40. The body 1 has a washing chamber 10 inside, and the washing chamber 10 has a terminal water outlet mechanism 2 for rinsing tableware. In this embodiment, the terminal water outlet mechanism 2 includes at least a spray arm 21, which is arranged to rotate relative to the washing chamber 10 and extends vertically along its rotation axis. The spray arm 21 has at least two spray holes, and the water outlet end of the water pumping mechanism 3 is in fluid communication with each spray hole. Of course, the terminal water outlet mechanism 2 may also include different rinsing structures such as a middle spray system and a top spray system, which can be selectively added according to different types and models of washing machines during actual production.

[0050] In this embodiment, the cleaning chamber 10 also has a residue collection area at its bottom. Specifically, the bottom of the cleaning chamber 10 has a recessed drain groove 11, which forms a residue collection area. Of course, in order to prevent residue leakage and ensure that the entire residue collection area has a residue-collecting function, the drain groove 11 is covered with a drain plate 12 at its opening, and a residue collection basket 13 is provided on the drain plate 12.

[0051] In this embodiment, the water flow of the entire cleaning machine is provided by the water pumping mechanism 3. The water pumping mechanism 3 is located inside the machine body 1 and has a guide channel 30 inside. The water pumped by the water pumping mechanism 3 has two output water paths. One water path is output to the end water outlet mechanism 2 to rinse the tableware in the cleaning chamber 10. That is, the water inlet end of the guide channel 30 is in fluid communication with the cleaning chamber 10 and the water outlet end is in fluid communication with the end water outlet mechanism 2. The other path is output to the spray channel 40 for rinsing the residue collection area. The water inlet end of the spray channel 40 is in fluid communication with the guide channel 30 and the water outlet end is located in the residue collection area and is arranged adjacent to the residue collection basket 13, thereby rinsing the residue collection area.

[0052] The pumping mechanism 3 in this embodiment also has a valve body 33, which is hollow inside to form a valve cavity 3c. The lower end of the water guide pipe 4 extends into the valve cavity 3c. The valve body 33 is also provided with an inlet channel 3a and an outlet channel 3b. The inlet channel 3a is connected to the outlet channel 3b through the valve cavity 3c, thereby forming a flow guide channel 30. A first one-way valve 36 is provided in the inlet channel 3a, allowing fluid to flow from the inlet channel 3a into the valve cavity 3c. A second one-way valve 37 is provided in the outlet channel 3b, allowing liquid to flow unidirectionally from the valve cavity 3c into the outlet channel 3b. The valve body 33 also has a vertically extending outlet seat 35 with its upper end extending into the cleaning chamber 10. The spray arm 21 of the end water outlet mechanism 2 is rotatably constrained on the outlet seat 35.

[0053] Of course, the water pumping mechanism 3 can adopt different structures to achieve the water supply function, such as using a traditional impeller for continuous water supply. However, for a cleaning machine, the water flow requires a certain impact force during rinsing. The impact force of the water flow is small during continuous water supply, and it is easy to generate bubbles. If the cleaning time is short, the cleaning effect is not ideal. Moreover, since the water pumping mechanism 3 also needs to supply water to the spray channel 40, the requirement for water flow impact force is even higher. Therefore, the water pumping mechanism 3 in this embodiment adopts a pulse-type water supply method, and its power output end is driven by the driver 32. Specifically, the above-mentioned water pumping mechanism 3 also has a piston 31 for pumping cleaning water. The piston 31 is movably arranged in the valve chamber 3c, and the inlet channel 3a and the outlet channel 3b are both arranged on the side of the valve body 33 so that the flow direction of the fluid in the spray channel 40 intersects the flow direction of the fluid in the guide channel 30. The side wall of the guide pipe 4 is provided with a first guide hole 4b for the piston 31 to pump the water in the guide channel 30 to the spray channel 40. By installing a piston in the valve chamber, the reciprocating movement of the piston can be utilized to output a pulsed water flow from the entire pumping mechanism 3. Since the pumping mechanism 3 can simultaneously supply water to the end water outlet mechanism and the spray channel 40, the pulsed water flow not only cleans the tableware but also enhances the rinsing of residue in the residue collection area. Under the same water circuit environment, the impact force generated by the intermittent pulse is much higher than that of the continuous water supply, thus achieving a better rinsing effect.

[0054] In this embodiment, there are at least two first guide holes 4b, arranged opposite to each other and spaced apart on both sides of the circumference of the water guide pipe 4, and both extending through the wall thickness of the water guide pipe 4, thus connecting in the flow direction of the fluid within the guide channel 30. One of the first guide holes 4b is arranged opposite to the outlet end of the inlet channel 3a, and one of the remaining first guide holes 4b is arranged opposite to the inlet end of the outlet channel 3b. This special inlet design ensures that while the water guide pipe outputs rinsing water to the residue collection area, it does not affect the flow of the original water path within the guide channel. Furthermore, under the pulse rinsing method, a relative vacuum state forms within the valve chamber during a very short time, creating a negative pressure and generating a siphon effect, thereby increasing the impact force of the next water flow. This provides benefits for both rinsing tableware and rinsing the residue collection area.

[0055] In this embodiment, one end of the piston 31 in its moving direction protrudes outside the valve cavity 3c. The output end of the actuator 32 is arranged adjacent to the valve body 33 and is drivenly connected to the piston 31. Specifically, the valve body 33 extends vertically, and its bottom has a guide hole 34 for the lower end of the piston 31 to pass through. The output shaft of the actuator 32 is provided with a cam 321, the outer edge of which abuts against the lower end of the piston 31, thereby intermittently acting on the piston 31. A transmission wheel 311 is provided at the lower end of the piston 31. The rotation axis of the transmission wheel 311 extends in the same direction as the cam 321, and the outer edge of the cam 321 contacts and abuts against the outer edge of the transmission wheel 311. Further, the bottom of the piston 31 has two downwardly extending connecting seats 312, which are arranged opposite each other and spaced apart. The transmission wheel 311 is rotatably constrained between the two connecting seats 312 by a rotating shaft passing through the two connecting seats 312. Of course, in order to ensure the piston 31 returns to its original position after moving, a first elastic element 46 is also provided in the valve cavity 3c. The first elastic element 46 acts on the piston 31 so that the piston 31 always has a downward tendency.

[0056] In this embodiment, a water distribution seat 41 is provided inside the water guide pipe 4. The upper end of the water distribution seat 41 extends above the water guide pipe 4, and its interior is hollow to form a spray channel 40. The upper end of the water distribution seat 41 has a spray port 4a communicating with the spray channel 40, and a second guide hole 4c communicating with the first guide hole 4b is opened on the side wall of the water distribution seat 41. There are at least two spray ports 4a, and each spray port 4a is opened on the side of the upper end of the water distribution seat 41 and is arranged at intervals in the circumferential direction of the water distribution seat 41.

[0057] To further ensure uniform rinsing of the entire residue collection area and avoid leaving any rinsing dead corners, the aforementioned water distribution seat 41 extends along the length of the water guide pipe 4 and is arranged to rotate relative to the water guide pipe 4 about its own axis. The water guide pipe 4 also has a stop structure 400 for driving the water distribution seat 41 to deflect. The stop structure 400 has a rotating inner core 42, at least two first stop grooves 401, and at least two second stop grooves 402 with a height difference from the first stop grooves 401. The first stop grooves 401 and the second stop grooves 402 are staggered in the circumferential direction of the water guide pipe 4. The rotating inner core 42 has at least two positioning teeth 403 and is arranged to move axially along the water guide pipe 4, so that the positioning teeth 403 alternately move into the first stop grooves 401 and the second stop grooves 402, thereby driving the rotating inner core 42 to rotate. Through the design of the gear structure, the rotating inner core can convert its axial movement relative to the water guide pipe into the jumping of its positioning teeth between the first and second gear slots. After the positioning teeth disengage from the previous first gear slot, they can automatically jump to the adjacent second gear slot under the action of axial force. After disengaging from the second gear slot, they can also automatically jump to the next first gear slot under the action of axial force. Therefore, while the entire rotating inner core is moving axially back and forth, it can rotate slightly in the jumping direction of the positioning teeth, so that the entire water distribution seat rotates around its own axis by the same amount. In this way, the above-mentioned spray nozzle can achieve more uniform spraying of cleaning water and avoid leaving spray dead corners in the residue collection area.

[0058] To ensure smooth axial movement of the rotating inner core relative to the water guide pipe, thereby performing rotational actions at the corresponding positions, specifically, the aforementioned positioning teeth 403 are spaced apart on the outer peripheral wall of the rotating inner core 42. The inner wall of the water guide pipe 4 has at least two guide ribs 43 arranged circumferentially, each guide rib 43 extending along the axis of the water guide pipe 4, and a guide groove 44 is formed between adjacent guide ribs 43 to allow axial movement of the rotating inner core 42. A first stop groove 401 is formed on the upper end face of the corresponding guide rib 43. The stop structure 400 in this embodiment also includes a stop seat 45, which is arranged adjacent to the lower end of the water guide pipe 4. Second stop grooves 402 are spaced apart on the upper periphery of the stop seat 45, and the upper end of the stop seat 45 is located below the upper end of each guide rib 43, so that a height difference is formed between the second stop groove 402 and the first stop groove 401. Of course, to facilitate the positioning tooth 403 switching between the first stop groove 401 and the second stop groove 402, each of the first stop grooves 401 has a corresponding first guide slope 404 on its end face for guiding the positioning tooth 403 into the adjacent second stop groove 402, and the end face of the second stop groove 402 has a second guide slope 405 for guiding the positioning tooth 403 into the adjacent first stop groove 401, and the second guide slope 405 has a height difference with the adjacent first guide slope 404, and each of the first guide slopes 405... 04 and each of the second guide slopes 405 are arranged downwards along the rotation direction of the rotating inner core 42, thus forming the same rotation direction as a whole. The lower end of the stop seat 45 abuts against the piston 31, thus linking with the piston 31. The rotating inner core 42 is rotatably constrained on the stop seat 45, thus reciprocating relative to the axial direction of the water guide pipe 4 under the movement of the stop seat 45. The second elastic element 406 acts on the water distribution seat 41, so that the water distribution seat 41, the rotating inner core 42 and the stop seat 45 always have a downward tendency.

[0059] To facilitate the repositioning of the water distribution seat 41 after movement, the outer wall of the water distribution seat 41 in this embodiment has a flange 411 extending radially outward. The second elastic member 406 is sleeved on the water distribution seat 41, and its two ends abut against the flange 411 and the inner side of the top end of the water guide pipe 4, respectively. Specifically, the upper end of the piston member 31 has a limiting groove 313, and the lower end of the stop seat 45 has a guide post 451 extending below the water guide pipe 4. The guide post 451 is constrained in the limiting groove 313 and abuts against the bottom wall of the limiting groove 313, thereby causing the stop seat 45 to drive the rotating inner core 42 to move axially relative to the water guide pipe 4. In addition, the first elastic member 46 is arranged around the water guide pipe 4, and its lower end is limited in the limiting groove 313, while its upper end abuts against the inner wall of the valve cavity 3c.

[0060] The term "fluid connectivity" as used in this invention refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. This third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

[0061] Furthermore, the specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine, comprising: The body (1) has a cleaning chamber (10) inside, the cleaning chamber (10) has a water outlet mechanism (2) for rinsing tableware, and the bottom of the cleaning chamber (10) also has a residue collection area. The water pumping mechanism (3) is located inside the body (1) and is used to pump water from the cleaning chamber (10) to the end water outlet mechanism (2). It has a guide channel (30) inside, the water inlet of the guide channel (30) is in fluid communication with the cleaning chamber (10), and the water outlet is in fluid communication with the end water outlet mechanism (2). The driver (32) is driven to the power output end of the pump mechanism (3); Its characteristic is that it further includes: The spray channel (40) has its inlet end in fluid communication with the guide channel (30) and its outlet end located in the residue collection area; The bottom of the cleaning chamber (10) has a recessed drain groove (11) that forms the residue collection area. The pump mechanism (3) is arranged below the drain groove (11) and has a water guide pipe (4) that extends upward to enter the residue collection area. The water guide pipe (4) has the spray channel (40) inside. The pumping mechanism (3) also has a valve body (33), which is hollow inside to form a valve cavity (3c). The lower end of the water guide pipe (4) extends into the valve cavity (3c). The valve body (33) is also provided with an inlet channel (3a) and an outlet channel (3b). The inlet channel (3a) is connected to the outlet channel (3b) through the valve cavity (3c), thereby forming the flow channel (30). The pumping mechanism (3) also has a piston (31) for pumping cleaning water. The piston (31) is movably arranged in the valve chamber (3c). The inlet channel (3a) and outlet channel (3b) are both located on the side of the valve body (33) so that the flow direction of the fluid in the spray channel (40) intersects with the flow direction of the fluid in the guide channel (30). The side wall of the guide pipe (4) is provided with a first guide hole (4b) for the piston (31) to pump the water in the guide channel (30) to the spray channel (40). There are at least two first guide holes (4b), which are arranged opposite to each other and spaced apart on both sides of the circumference of the water pipe (4) and both are arranged through the wall thickness direction of the water pipe (4), so as to pass through the flow direction of the fluid in the guide channel (30).

2. The cleaning machine according to claim 1, characterized in that: One of the first guide holes (4b) is arranged opposite to the outlet end of the inlet channel (3a), and one of the remaining first guide holes (4b) is arranged opposite to the inlet end of the outlet channel (3b).

3. The cleaning machine according to claim 2, characterized in that: One end of the piston (31) in the direction of movement is exposed outside the valve chamber (3c), and the output end of the actuator (32) is arranged adjacent to the valve body (33) and drivenly connected to the piston (31).

4. The cleaning machine according to claim 3, characterized in that: The valve body (33) extends vertically, and a guide hole (34) is provided at its bottom for the lower end of the piston (31) to pass through. The output shaft of the driver (32) is provided with a cam (321). The outer edge of the cam (321) abuts against the lower end of the piston (31), thereby intermittently acting on the piston (31).

5. The cleaning machine according to claim 4, characterized in that: The lower end of the piston (31) is provided with a transmission wheel (311), the rotation axis of which extends in the same direction as the cam (321), and the outer edge of the cam (321) contacts and abuts against the outer edge of the transmission wheel (311).

6. The cleaning machine according to claim 5, characterized in that: The piston (31) has two downwardly extending connecting seats (312) at its bottom. The two connecting seats (312) are arranged opposite to each other and spaced apart. The transmission wheel (311) is rotatably constrained between the two connecting seats (312) by a rotating shaft passing through the two connecting seats (312).

7. The cleaning machine according to claim 6, characterized in that: The valve chamber (3c) is also provided with a first elastic element (46), which acts on the piston element (31) so that the piston element (31) always has a downward tendency.

8. The cleaning machine according to claim 7, characterized in that: A water distribution seat (41) is provided inside the water guide pipe (4). The upper end of the water distribution seat (41) extends above the water guide pipe (4). The interior of the water distribution seat (41) is hollow to form the spray channel (40). The upper end of the water distribution seat (41) has a spray port (4a) that communicates with the spray channel (40). A second guide hole (4c) that communicates with the first guide hole (4b) is opened on the side wall of the water distribution seat (41).

9. The cleaning machine according to claim 8, characterized in that: There are at least two spray nozzles (4a), each of which is located on the side of the upper end of the water distribution seat (41) and is arranged at intervals around the circumference of the water distribution seat (41).

10. The cleaning machine according to claim 9, characterized in that: The water distribution seat (41) extends along the length of the water guide pipe (4) and is arranged to rotate relative to the water guide pipe (4) about its own axis.

11. The cleaning machine according to claim 10, characterized in that: The water guide pipe (4) also has a stop structure (400) for driving the water distribution seat (41) to deflect. The stop structure (400) has a rotating inner core (42), at least two first stop grooves (401) and at least two second stop grooves (402) with a height difference from the first stop grooves (401). The first stop grooves (401) and the second stop grooves (402) are staggered in the circumferential direction of the water guide pipe (4). The rotating inner core (42) has at least two positioning teeth (403). The rotating inner core (42) is arranged to be able to move along the axial direction of the water guide pipe (4) so ​​that the positioning teeth (403) alternately move into the first stop grooves (401) and the second stop grooves (402), thereby driving the rotating inner core (42) to rotate.

12. The cleaning machine according to claim 11, characterized in that: Each of the positioning teeth (403) is spaced apart on the outer peripheral wall of the rotating inner core (42). The inner wall of the water guide pipe (4) is provided with at least two guide ribs (43) in the circumferential direction. Each of the guide ribs (43) extends along the axis of the water guide pipe (4), and a guide groove (44) for axial movement of the rotating inner core (42) is formed between two adjacent guide ribs (43). The first stop groove (401) is opened on the upper end face of the corresponding guide rib (43).

13. The cleaning machine according to claim 12, characterized in that: The stop structure (400) also includes a stop seat (45) arranged near the lower end of the water pipe (4), and each of the second stop grooves (402) is spaced apart on the periphery of the upper end of the stop seat (45). The upper end of the stop seat (45) is located below the upper end of each of the guide ribs (43) so that the second stop groove (402) and the first stop groove (401) form a height difference.

14. The cleaning machine according to claim 13, characterized in that: Each of the first stop grooves (401) has a corresponding first guide slope (404) on its end face for guiding the positioning tooth (403) into the adjacent second stop groove (402). The end face of the second stop groove (402) has a second guide slope (405) for guiding the positioning tooth (403) into the adjacent first stop groove (401). The second guide slope (405) and the adjacent first guide slope (404) have a height difference. Each of the first guide slopes (404) and each of the second guide slopes (405) are along the rotation. The inner core (42) is arranged to rotate downwards, thus forming the same rotation direction as a whole. The lower end of the stop seat (45) abuts against the piston (31), thus linking with the piston (31). The rotating inner core (42) is rotatably constrained on the stop seat (45), thus reciprocating relative to the water guide pipe (4) under the action of the movement of the stop seat (45). The second elastic element (406) acts on the water distribution seat (41) so that the water distribution seat (41), the rotating inner core (42) and the stop seat (45) always have a downward tendency.

15. The cleaning machine according to claim 14, characterized in that: The outer wall of the water distribution seat (41) has a flange (411) extending radially outward. The second elastic member (406) is sleeved on the water distribution seat (41), and its two ends abut against the flange (411) and the inner side of the top of the water guide pipe (4), respectively.

16. The cleaning machine according to claim 15, characterized in that: The piston (31) has a limiting groove (313) at its upper end, and the stop seat (45) has a guide post (451) extending below the water guide pipe (4) at its lower end. The guide post (451) is constrained in the limiting groove (313) and abuts against the bottom wall of the limiting groove (313), thereby causing the stop seat (45) to drive the rotating inner core (42) to move axially relative to the water guide pipe (4).

17. The cleaning machine according to claim 16, characterized in that: The first elastic element (46) is arranged around the water guide pipe (4), and its lower end is limited in the limiting groove (313), while its upper end abuts against the inner wall of the valve cavity (3c).

18. The cleaning machine according to claim 17, characterized in that: The end water outlet mechanism (2) includes at least a spray arm (21), which is arranged to rotate relative to the cleaning chamber (10) and its rotation axis extends vertically. The spray arm (21) has at least two spray holes, and the water outlet channel (3b) is in fluid communication with each of the spray holes.

19. The cleaning machine according to claim 18, characterized in that: The valve body (33) has a vertically extending water outlet seat (35) with its upper end extending into the cleaning chamber (10), and the spray arm (21) is rotatably constrained on the water outlet seat (35).

20. The cleaning machine according to claim 1, characterized in that: The inlet channel (3a) is provided with a first check valve (36) that allows fluid to flow from the inlet channel (3a) into the valve chamber (3c), and the outlet channel (3b) is provided with a second check valve (37) that allows liquid to flow from the valve chamber (3c) into the outlet channel (3b) in one direction only.

21. The cleaning machine according to claim 1, characterized in that: The drain trough (11) is covered with a drain plate (12) at its opening, and a slag collection basket (13) is provided on the drain plate (12). The water outlet of the spray channel (40) is arranged adjacent to the slag collection basket (13).

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