A cleaning machine

Abstract

The present invention relates to a cleaning machine, comprising a cleaning box, which has a cleaning chamber inside; a spray arm, which is rotatably arranged at a position adjacent to the bottom of the cleaning chamber, and has a main flow channel inside, and the spray arm has a water spray hole connected to the main flow channel; a movable body, which is at least partially located above the spray arm, and has a secondary flow channel inside, and has a water outlet hole connected to the secondary flow channel; the movable body has a first state fixed relative to the spray arm and a second state rotating relative to the spray arm, when the movable body is in the first state, the secondary flow channel is in fluid communication with the main flow channel and is located downstream of the main flow channel, and when the movable body is in the second state, the secondary flow channel and the main flow channel are not connected to each other. In this way, when the movable body is in the first state, the entire area above the spray arm is fully covered and cleaned; when the movable body is in the second state, the movable body stirs the water flow to form turbulence, thereby improving the cleaning effect.

Description

Technical Field

[0001] The invention belongs to the field of household appliances, and in particular relates to a cleaning machine. Background Art

[0002] A cleaning machine is a device that sprays cold or hot water onto dishes to remove dirt adhered to the dishes or fruits and vegetables and clean the dishes or fruits and vegetables. Existing spray cleaning machines generally achieve spraying in all directions by rotating a sprayer.

[0003] The current cleaning machine, such as the Chinese invention patent application "A Fruit and Vegetable Cleaning Machine" previously applied by the applicant, whose patent application number is CN201810936883.5 (application publication number is CN110833345A), discloses a fruit and vegetable cleaning machine, including a box body, a spray arm and a cleaning basket, the interior of the box body is hollow to form a washing chamber, the spray arm can be rotatably arranged in the washing chamber and has a first water outlet, the cleaning basket can be detachably placed in the washing chamber, and also includes a stirring member rotatably arranged in the cleaning basket, the stirring member has a stirring arm extending from the middle to both sides, and the stirring arm has an opening for fruits and vegetables to pass through. The above-mentioned cleaning machine is used for cleaning fruits and vegetables. When the stirring member rotates, the stirring arm can stir the fruits and vegetables in the cleaning basket, so that the fruits and vegetables remain dynamic during the cleaning process, while increasing the turbulence of the water flow. Although the water flow is turbulent, the degree of turbulence is limited because the stirring arm and the spray arm rotate simultaneously. In addition, if dishes are washed, the stirring arm occupies a larger space, and the dish storage space is small, so the dishes cannot be washed.

[0004] Therefore, it is necessary to further improve the existing cleaning machine. Summary of the invention

[0005] The first technical problem to be solved by the present invention is to provide a cleaning machine with improved cleaning capability for objects to be cleaned in view of the current status of the above-mentioned prior art.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine which can enhance the cleaning ability of fruits and vegetables by stirring the water flow.

[0007] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: a cleaning machine, comprising:

[0008] a cleaning box having a washing chamber therein;

[0009] A spray arm is rotatably disposed at a position near the bottom of the washing chamber, and has a main flow channel inside. The spray arm has a water spray hole connected to the main flow channel;

[0010] A movable body, at least partially located on the spray arm, having a secondary flow channel inside and a water outlet hole connected to the secondary flow channel;

[0011] It is characterized in that: the movable body has a first state in which it is fixed relative to the spray arm and a second state in which it rotates relative to the spray arm. When the movable body is in the first state, the secondary flow channel is connected to the fluid of the main flow channel and is located downstream of the main flow channel. When the movable body is in the second state, the secondary flow channel is not connected to the main flow channel.

[0012] There are various structural forms of the movable body, but preferably, the movable body includes a main body and a protrusion arranged at the bottom of the main body and extending downward, and an annular wall is extended upward from the top surface adjacent to the center outside the top wall plate of the spray arm, and the protrusion is located in the inner cavity of the annular wall, and the protrusion has a water outlet connected to the secondary flow channel, and when the movable body is in the first state, the water outlet is connected to the main flow channel fluid.

[0013] The water outlet can be set on the side wall of the protrusion, or at an eccentric position at the bottom of the protrusion, but preferably, the water outlet is opened on the side wall of the protrusion, and the side wall of the annular wall is provided with a through hole connected to its inner cavity, and the through hole is connected to the main channel of the spray arm through a water pipe. When the movable body is in the first state, the water outlet and the through hole are arranged correspondingly and connected.

[0014] The main body has various structural forms, which may be a strip structure or a disc shape, but preferably, the main body is disc-shaped, and the secondary flow channel is formed in the hollow interior of the main body, and the convex part is arranged near the center of the main body.

[0015] In order to drive the movable body to rotate when the movable body is in the second state, an impeller that rotates under the impelling force of the water flow is relatively fixed at the bottom of the protruding member, and the rotation axis of the impeller extends vertically. When the movable body is in the second state, the water outlet and the through-port are staggered and not connected to each other, and the impeller is located at the through-port, downstream of the through-port along the water flow path. In this way, the water flow flowing out of the through-port continuously impacts the blades of the impeller, thereby driving the impeller to rotate. Since the impeller and the movable body are relatively fixed, the movable body rotates with the impeller at this time.

[0016] In order to achieve the stirring of the water flow, the top wall plate of the main body has an extension piece extending upward, and the interior of the extension piece has a water guiding channel which is not connected with the secondary flow channel and is connected with the inner fluid of the annular wall, and the extension piece is provided with a driving hole connected with the water guiding channel for driving the movable body to rotate, when the movable body is in the first state, the water guiding channel and the through-port are not connected with each other, and when the movable body is in the second state, the water guiding channel is connected with the through-port fluid.

[0017] In order to achieve fluid connectivity between the water guiding channel and the through-port, a cavity is formed in the interior of the convex part, and the bottom of the extending part has a water inlet at a position corresponding to the cavity. The periphery of the water inlet extends downward to form a water flow channel that partially passes through the cavity and is connected to the inner cavity of the annular wall. When the movable body is in the second state, the water flow channel is fluidly connected to the through-port.

[0018] The technical solution adopted by the present invention to solve the second technical problem is: the top of the extension member has a toggle member extending upward. In this way, when the movable body is in the second state, the toggle member stirs the water flow and generates a small vortex in the central area of ​​the spray arm, driving the water flow around the movable body to form a water flow rotating in one direction, thereby improving the cleaning ability of fruits and vegetables.

[0019] The extension piece can be arranged horizontally or vertically, but from the perspective of the stirring range, preferably, the extension piece extends horizontally, and the two side walls of the extension piece along the direction intersecting the length direction of the extension piece are respectively the first side wall and the second side wall, the driving hole is opened on the first side wall, the toggle piece extends along the length direction of the extension piece, and includes an intermediate piece arranged at a central position near the top surface of the extension piece and a first toggle piece and a second toggle piece located on both sides of the intermediate piece, the first toggle piece extends upward from the top edge of the first side wall, the second toggle piece extends upward from the top edge of the second side wall, and the intermediate piece has a smooth transition with the first toggle piece and the second toggle piece.

[0020] In order to spray water around the extension part so that the extension part drives the water around the extension part to form a vortex during rotation and then form more turbulence, the extension part is arranged at a position near the center of the main part and extends laterally. There are multiple water outlets, which are opened in the area of ​​the main part except the extension part.

[0021] The two states of the movable body can be achieved by up and down movement and rotation, or by rotation only. However, in order to simultaneously meet the needs of washing fruits, vegetables and dishes, preferably, the movable body is arranged to be able to move up and down relative to the annular wall and rotate around its own axis, and the height of the movable body in the first state is lower than the height of the movable body in the second state.

[0022] There are many ways to switch the first state and the second state of the movable body, but preferably, the bottom of the convex part of the movable body is provided with a convex part extending laterally, the inner side wall of the annular wall adjacent to the bottom has a limiting groove with an opening facing downward for the convex part to slide in the circumferential direction, and also includes an elastic part acting on the movable body so that the movable body always has an upward movement tendency, when the movable body is in the first state, the convex part is located in the limiting groove, and when the movable body is in the second state, the convex part is separated from the limiting groove and located above the limiting groove. In this way, when it is necessary to put the movable body in the first state, the movable body is pressed down and rotated so that the convex part of the movable body is located in the limiting groove; when it is necessary to put the movable body in the second state, the movable body is pressed down and rotated in the opposite direction so that the convex part slides out of the limiting groove and is located above the limiting groove under the action of the elastic part, so that the limiting of the movable body is separated, and the movable body can rotate relative to the annular wall.

[0023] In addition, a form in which a buckle and a slot cooperate with each other can also be adopted. For example, a guide groove extending in the up-down direction is opened on the spray arm, and a slot is provided at the bottom of the guide groove, and the movable body is provided with an elastic buckle connected to the slot, and an annular groove connected to the guide groove and extending in the circumferential direction is provided at the upper end of the guide groove. The elastic buckle can move along the annular groove. When the movable body needs to be fixed to the spray arm, it is only necessary to press the movable body down, and the fixation of the two is achieved through the cooperation of the elastic buckle and the slot. When the fixation of the two needs to be released, the elastic buckle is disengaged from the slot, and the movable body moves upward. When the movable body rotates relative to the spray arm, the elastic buckle moves along the annular groove.

[0024] There are many forms of forming the limit groove. The limit groove can be directly opened on the inner side wall of the annular wall, or a limit piece can be convexly provided on the inner side wall of the annular wall. However, preferably, the inner side wall of the annular wall is provided with a limit piece extending inwardly, and the limit piece includes a first limit strip, a second limit strip, a third limit strip and a fourth limit strip in sequence along the circumferential direction. The first limit strip and the third limit strip both extend along the circumferential direction. The second limit strip is formed by extending upward from the first end of the first limit strip. The first end of the third limit strip is connected to the upper end of the second limit strip, and the second end of the third limit strip extends downward to form the fourth limit strip. The second, third and fourth limit strips form the limit groove.

[0025] In order to limit the movable body from detaching from the annular wall, the outer peripheral wall of the protrusion extends laterally to form a flange, and the flange extends along the circumference of the protrusion. The peripheral edge of the open top of the annular wall extends inward to form a convex edge. When the movable body is in the second state, the top of the flange abuts against the bottom of the convex edge.

[0026] In order to achieve the disconnection between the water flow channel and the through-opening when the movable body is in the second state, the bottom opening of the water flow channel is located below the flange, the flange is located below the water outlet, and the outer peripheral wall of the flange is provided with a first sealing ring forming a sealing connection between the flange and the inner peripheral wall of the annular wall.

[0027] In order to achieve full coverage cleaning of the area above the spray arm, the water spray hole is located on the peripheral side of the water outlet hole, and the annular water spray area formed by the water spray hole when the spray arm rotates is located on the periphery of the water outlet hole.

[0028] Compared with the prior art, the advantages of the present invention are: the movable body of the cleaning machine can be fixed relative to the spray arm and can also rotate relative to the spray arm. When fixed relative to the spray arm, since the secondary flow channel of the movable body is fluidly connected with the main flow channel, the water flowing out of the main flow channel enters the secondary flow channel and is sprayed out through the water outlet, thereby fully covering and cleaning the entire area above the spray arm; when the movable body rotates relative to the spray arm, the secondary flow channel and the main flow channel are not connected to each other, and no water flows out. At this time, the movable body is equivalent to a driving wheel, which stirs the water flow above the spray arm, thereby forming turbulence above the spray arm, thereby improving the cleaning effect; in addition, the cleaning of fruits, vegetables and dishes can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic structural diagram of the cleaning machine with the movable body in the second state in this embodiment, with the door body removed;

[0030] Figure 2 for Figure 1 The cross-sectional view after removing the box body;

[0031] Figure 3 for Figure 1 A cross-sectional view from another angle after removing the box body;

[0032] Figure 4 It is a cross-sectional view of the cleaning machine with the movable body in the first state in this embodiment, with the door body removed;

[0033] Figure 5 for Figure 4 The enlarged structural diagram of the middle part I;

[0034] Figure 6 for Figure 4 The cross-sectional view after removing the box body;

[0035] Figure 7 is a cross-sectional view of a spray arm;

[0036] Figure 8 It is a schematic diagram of the structure of the moving body;

[0037] Fig. 9 for Figure 8 A schematic diagram of the structure from another angle;

[0038] Fig.10 for Figure 6 Schematic diagram of the enlarged structure of part II. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 10 As shown, the cleaning machine of this embodiment can be used to clean fruits and vegetables, as well as dishes, etc. The cleaning machine of this embodiment includes a cleaning box 1, a spray arm 2, a movable body 3, a water pump mechanism 6 and an elastic member.

[0041] The above-mentioned cleaning box 1 comprises a box body 11 with an open top and a door body (not shown) covering the top opening of the box body. When the door body closes the top opening of the box body 11, the box body 11 and the door body enclose to form a washing chamber 10.

[0042] like Figures 1 to 4 As shown, a guide seat 13 is provided at the bottom of the washing chamber 10, and the spray arm 2 can be rotatably arranged on the guide seat 13, and the inside of the spray arm 2 has a main flow channel 20. The top wall plate of the spray arm 2 has a water spray hole 201 connected to the main flow channel 20, and water flows upward through the water spray hole 201. The aforementioned spray arm 2 is in a straight shape as a whole, and can also be in an S shape, or other shapes. The main flow channel 20 includes a water collection chamber 20a located in the center and a branch channel 20b arranged at intervals on both sides of the water collection chamber 20a along the length direction of the spray arm 2, and the water collection chamber 20a is connected to the branch channel 20b on both sides. The bottom wall plate of the aforementioned spray arm 2 has a water inlet channel 202 connected to the water collection chamber 20a near the center, and the water pump mechanism 6 is used to pump the water at the bottom of the washing chamber 10 through the internal flow channel of the guide seat 13 and the water inlet channel 202 to the water collection chamber 20a of the spray arm 2. The pump mechanism in this embodiment adopts the pump mechanism in the patent previously applied by the applicant, and will not be described in detail in this embodiment. In addition, an annular wall 21 is formed extending upward from the top surface near the center of the top wall plate of the spray arm 2, and the inner area surrounded by the annular wall 21 is its inner cavity 210, and the side wall of the annular wall 21 is provided with a through hole 211 connected to the inner cavity 210, and the through hole 211 is connected to the branch channel 20b of the main channel 20 of the spray arm 2 through the water conduit 4, see Figure 2 and Figure 3 shown.

[0043] like Figure 1 , Figure 2 and Figures 4 to 8As shown, the movable body 3 is located on the spray arm 2, and the movable body 3 includes a main body 31 and a protruding member 32. The protruding member 32 is arranged at a position near the center of the bottom of the main body 31, extends downward, and is partially located in the inner cavity 210 of the annular wall 21. Figure 5 As shown, the inner hollow of the protrusion 32 forms a cavity 320, and the side wall of the protrusion 32 is provided with a water outlet 321. The main body 31 of this embodiment is disc-shaped, and the inner hollow of the main body 31 forms a secondary flow channel 310, and the water outlet 321 is in fluid communication with the secondary flow channel 310 through the cavity 320. In addition, the outer peripheral wall of the protrusion 32 extends laterally to form a flange 323, and the flange 323 extends along the circumference of the protrusion 32, and the peripheral edge of the open top of the annular wall 21 extends inward to form a convex edge 213 that limits the protrusion 32 from escaping upward from the annular wall 21.

[0044] like Figure 1 , Figure 2 and Figures 4 to 8 As shown, the top wall plate of the main body 31 has an extension member 34 extending upward, the extension member 34 extends laterally (i.e., extends along the diameter of the disk) and is arranged at a position near the center of the main body 31, such as Figure 8 As shown, the two side walls of the extension member 34 along the direction intersecting the length direction of the extension member 34 are respectively the first side wall 34a and the second side wall 34b. The interior of the aforementioned extension member 34 has a water channel 340 which is not connected with the secondary flow channel 310, and the water channel 340 is in fluid communication with the inner cavity 210 of the ring wall 21. In order to achieve the communication between the water channel 340 and the inner cavity 210, the bottom of the extension member 34 has a water inlet 342, which is arranged at a position corresponding to the cavity 320, and the circumference of the water inlet 342 extends downward to form a water flow channel 343 which partially passes through the cavity 320 downward and is connected with the inner cavity 210 of the ring wall 21, and the bottom of the water flow channel 343 is open and connected with the inner cavity of the ring wall 21. The top wall plate of the aforementioned main body 31 has a water outlet 3101 connected with the secondary flow channel 310, and water flows upward through the water outlet 3101. In this embodiment, there are multiple water outlet holes 3101, which are located around the extension member 34, that is, they are opened on the area of ​​the main body 31 other than the extension member 34. In this embodiment, the water spray hole 201 is located around the water outlet hole 3101, and the annular water spray area formed by the water spray hole 201 when rotating with the spray arm 2 is located outside the water outlet hole 3101, and the water spray hole 201 is set at the position corresponding to the branch channel 20b.

[0045] like Figure 2 , Figure 5 , Figure 6 and Fig.10As shown, the movable body 3 is arranged to be able to move up and down relative to the annular wall 21, which can be manually driven or actively driven. The bottom of the protruding piece 32 of the movable body 3 is provided with a convex portion 322 extending laterally, and the inner side wall of the annular wall 21 is provided with a limit groove 2120 with an opening facing downward at a position adjacent to the bottom. There are many ways to form the limit groove. In this embodiment, the following methods are adopted: Figure 7 and Fig.10 As shown, the inner side wall of the annular wall 21 is provided with a limiting piece 212 extending inwardly, and the limiting piece 212 includes a first limiting strip 2121, a second limiting strip 2122, a third limiting strip 2123 and a fourth limiting strip 2124 in sequence along the circumferential direction. The first limiting strip 2121 and the third limiting strip 2123 both extend along the circumferential direction. The second limiting strip 2122 is formed by extending upward from the first end of the first limiting strip 2121. The first end of the third limiting strip 2123 is connected to the upper end of the second limiting strip 2122, and the second end of the third limiting strip 2123 extends downward to form a fourth limiting strip 2124. The second limiting strip 2122, the third limiting strip 2123 and the fourth limiting strip form the above-mentioned limiting groove 2120. The above-mentioned first limiting strip 2121 has a certain guiding effect on the protrusion 322.

[0046] The elastic member acts on the movable body 3 so that the movable body 3 always has a tendency to move upward. The elastic member of this embodiment is a spring 7. In order to install the spring 7, the bottom of the protrusion 32 is concave upward near the center to form a concave cavity. The water flow channel 343 is partially located in the concave cavity. The upper end of the spring 7 is located in the concave cavity and is sleeved on the periphery of the water flow channel 343. The lower end of the spring 7 is in contact with the top wall plate of the spray arm 2. The top surface of the top wall plate of the spray arm 2 extends upward to form a guide column 22. The lower end of the guide column 22 is located in the inner cavity 210 of the ring wall 21, and the upper end of the guide column 22 is located in the water flow channel 343. A gap for water to pass through is left between the outer peripheral wall of the guide column 22 and the water flow channel 343. The movable body 3 in this embodiment has a first state relatively fixed with the spray arm 2 and a second state rotating relative to the spray arm 2. When the movable body 3 is pressed downward to the lowest position, the movable body 3 is rotated so that the movable body 3 slides into the limiting groove 2120 along the first limiting strip 2121, so that the movable body 3 is in the first state. Therefore, when the movable body 3 is in the first state, the protrusion 322 is located in the limiting groove 2120. At this time, Figure 5As shown, the water outlet 321 is arranged correspondingly and connected to the through-port 211. Thus, when the water outlet 321 is connected to the through-port 211, the secondary flow channel 310 is connected to the primary flow channel 20 through the cavity 320 and the water conduit 4. Along the water flow path, the secondary flow channel 310 is located downstream of the primary flow channel 20. However, when the movable body 3 is in the first state, the water conduit 340 is not connected to the through-port 211. In order to achieve that the water conduit 340 is not connected to the through-port 211, as shown in FIG. Figure 5 As shown, the flange 323 of the protruding member 32 is located below the water outlet 321, and a first sealing ring 8 is sleeved on the flange 323 to form a sealed connection between the protruding member 32 and the inner peripheral wall of the annular wall 21. The first sealing ring 8 prevents water from flowing downward and flowing into the water flow channel 343. A second sealing ring 9 is embedded in the inner peripheral wall of the protruding edge of the annular wall 21 to prevent water entering the inner cavity of the annular wall from flowing upward.

[0047] The movable body 3 is pressed downward and rotated. At this time, the protrusion 322 of the movable body 3 is separated from the limiting groove 2120 and moves along the first limiting strip 2121 in a direction away from the limiting groove 2120. When the protrusion 322 and the limiting member 212 are in a misaligned state, under the action of the spring 7, the movable body 3 moves upward until the top of its flange 323 abuts against the bottom of the flange 213. At this time, the movable body 3 is in the second state. For details, see Figure 2 As shown. When the movable body 3 is in the second state, the water outlet 321 and the through-port 211 are staggered and not connected to each other, so that the secondary flow channel 310 and the main flow channel 20 are not connected to each other. When the movable body 3 is in the second state, the water outlet 321 is connected to the water flow channel 343. When the movable body 3 is in the second state, in order to realize the rotation of the movable body 3 relative to the spray arm 2, an impeller 33 that rotates under the push of the water flow is relatively fixed at the bottom of the protrusion 32, and the rotation axis of the impeller 33 extends vertically. When the movable body 3 is in the second state, the impeller 33 is located at the through-port 211, along the water flow path, and is located downstream of the through-port 211. In this way, the water flow flowing out of the through-port 211 impacts the impeller 33, driving the impeller 33 to rotate. Since the impeller 33 and the movable body 3 are fixedly connected, at this time, the movable body 3 rotates with the impeller 33. In order to further accelerate the rotation of the movable body 3, the first side wall 34a of the extension member 34 is provided with a driving hole 341 connected to the water guiding channel 340 for driving the movable body 3 to rotate. The water outlet direction of the driving hole 341 is opposite to the rotation direction of the movable body 3, and the driving hole 341 and the impeller 33 make the movable body 3 rotate in the same rotation direction.

[0048] In addition, in order to further stir the water flow and generate a small vortex in the central area when the movable body 3 is in the second state, so as to drive the peripheral water flow to form a water flow rotating in one direction, the top of the extension member 34 is provided with a toggle member 35 extending upward. The toggle member 35 extends along the length direction of the extension member 34, and includes a middle piece 351 arranged at a central position near the top surface of the extension member 34 and a first toggle member 352 and a second toggle member 353 located on both sides of the middle piece 351. The first toggle member 352 extends upward from the top edge of the first side wall 34a, and the second toggle member 353 extends upward from the top edge of the second side wall 34b. The middle piece 351 and the first toggle member 352 and the second toggle member 353 have a smooth transition. The toggle member 35 in this embodiment is basically S-shaped.

[0049] Usually, a large amount of water is required when washing fruits and vegetables. Generally, when washing fruits and vegetables, the amount of water overflows the movable body 3, while when washing dishes, the amount of water does not overflow the movable body 3. The working process of the above-mentioned washing machine is as follows:

[0050] When it is necessary to wash the dishes, the movable body 3 is in the first state, and the movable body 3 is in a lower position. When the spray arm 2 rotates, the movable body 3 rotates with the spray arm 2. Since the secondary flow channel of the movable body 3 is connected to the main flow channel of the spray arm 2, at this time, the water spray hole 201 of the spray arm 2 sprays water upward, and the water outlet hole 3101 of the movable body 3 also sprays water upward, that is, the central area of ​​the washing chamber can also be washed, that is, the central area of ​​the spray arm 2 can discharge water, and more jets can be flushed in a short time, which can greatly shorten the time to clean the dishes, greatly improve the cleaning ability, and achieve fast cleaning.

[0051] When fruits and vegetables need to be washed, the movable body 3 is rotated to make the convex portion 322 of the movable body 3 disengage from the limiting groove 2120 and move upward under the action of the spring 7. At this time, the top of the flange 323 of the convex piece 32 abuts against the bottom of the convex edge 213 of the annular wall 21, so that the movable body 3 is in the second state, and the movable body 3 is in a higher position state (that is, the height of the movable body 3 when washing fruits and vegetables is higher than the height of the movable body 3 when washing dishes). During the rotation of the spray arm 2, when the water in the main flow channel of the spray arm 2 flows in through the water guide pipe 4, the through-port 211, and the water outlet, it will impact the impeller on the convex part 32, thereby driving the movable body 3 to rotate (such as clockwise rotation). This is the first drive of the movable body 3. At this time, the water flows into the secondary flow channel of the movable body through the inner cavity of the annular wall, and sprays the water upward through the water outlet hole; while another part of the water flows into the water guide channel 340 of the extension part through the water flow channel, and finally flows out through the driving hole. The water flow generates a reverse force, further pushing the movable body 3 to rotate clockwise. This is the second drive of the movable body 3. The superposition of the two drives generates a stronger driving force, which can force the movable body 3 to rotate faster than the spray arm 2, that is, the movable body 3 can rotate relative to the spray arm 2, and the movable body 3 is equivalent to a driving wheel. Since there is a large amount of water when washing fruits and vegetables, the toggle member 35 can stir the water flow to generate a small vortex in the central area, driving the water flow sprayed from the water outlet of the movable body 3 to rotate in the same direction, and cooperate with the small surge produced by the water ejected from the spray arm 2, it can ensure that the water flow during the entire fruit and vegetable washing is in effective vortex turbulence. Compared with the previous small surge produced by the water ejected from the spray arm 2, more turbulence is generated during the entire fruit and vegetable washing, and the effect is significantly improved. The fruits and vegetables will be cleaned more under the larger turbulence.

[0052] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0053] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A cleaning machine, comprising: A cleaning box (1) having a washing chamber (10) therein; A spray arm (2) is rotatably arranged at a position near the bottom of the washing chamber (10), and has a main flow channel (20) inside. The spray arm (2) has a water spray hole (201) connected to the main flow channel (20); A movable body (3), at least partially located on the spray arm (2), having a secondary flow channel (310) inside thereof, and having a water outlet hole (3101) connected to the secondary flow channel (310); Features: The movable body (3) has a first state in which it is fixed relative to the spray arm (2) and a second state in which it is rotated relative to the spray arm (2). When the movable body (3) is in the first state, the secondary flow channel (310) is fluidically connected to the main flow channel (20) and is located downstream of the main flow channel (20). When the movable body (3) is in the second state, the secondary flow channel (310) is not connected to the main flow channel (20).

2. The cleaning machine according to claim 1, characterized in that: The movable body (3) comprises a main body (31) and a protruding member (32) arranged at the bottom of the main body (31) and extending downwards. An annular wall (21) is formed by extending upwards from a position adjacent to the center of the top surface outside the top wall plate of the spray arm (2). The protruding member (32) is located in an inner cavity (210) of the annular wall (21), and the protruding member (32) has a water outlet (321) connected to the secondary flow channel (310). When the movable body (3) is in a first state, the water outlet (321) is in fluid communication with the main flow channel (20).

3. The cleaning machine according to claim 2, characterized in that: The water outlet (321) is provided on the side wall of the protruding part (32); the side wall of the annular wall (21) is provided with a through-port (211) connected to its inner cavity (210); the through-port (211) is connected to the main flow channel (20) of the spray arm (2) through a water conduit (4); when the movable body (3) is in the first state, the water outlet (321) and the through-port (211) are arranged correspondingly and are connected.

4. The cleaning machine according to claim 2, characterized in that: The main body (31) is in the shape of a disk, and the secondary flow channel (310) is formed in a hollow interior of the main body (31), and the protrusion (32) is arranged at a position near the center of the main body (31).

5. The cleaning machine according to claim 3, characterized in that: An impeller (33) is relatively fixed to the bottom of the protruding part (32) and rotates under the impetus of the water flow. The rotation axis of the impeller (33) extends vertically. When the movable body (3) is in the second state, the water outlet (321) and the through-port (211) are arranged in a staggered manner and are not connected to each other, and the impeller (33) is located at the through-port (211), downstream of the through-port (211) along the water flow path.

6. The cleaning machine according to claim 3, characterized in that: The top wall plate of the main body (31) has an extension piece (34) extending upward, and the interior of the extension piece (34) has a water guide channel (340) which is not connected to the secondary flow channel (310) and is fluidically connected to the inner cavity (210) of the annular wall (21), and the extension piece (34) is provided with a driving hole (341) which is connected to the water guide channel (340) and is used to drive the movable body (3) to rotate. When the movable body (3) is in a first state, the water guide channel (340) and the through-hole (211) are not connected to each other, and when the movable body (3) is in a second state, the water guide channel (340) and the through-hole (211) are fluidically connected.

7. The cleaning machine according to claim 6, characterized in that: The interior of the protruding member (32) is hollow to form a cavity (320); the bottom of the extending member (34) has a water inlet (342) at a position corresponding to the cavity (320); the periphery of the water inlet (342) extends downward to form a water flow channel (343) that partially passes through the cavity (320) and is connected to the inner cavity (210) of the annular wall (21); when the movable body (3) is in the second state, the water flow channel (343) is in fluid communication with the through-port (211).

8. The cleaning machine according to claim 6, characterized in that: The top of the extension piece (34) is provided with a toggle piece (35) extending upward.

9. The cleaning machine according to claim 8, characterized in that: The extension member (34) extends transversely, and the two side walls of the extension member (34) along the direction intersecting the length direction of the extension member (34) are respectively a first side wall (34a) and a second side wall (34b); the driving hole (341) is provided on the first side wall (34a); the toggle member (35) extends along the length direction of the extension member (34), and comprises an intermediate piece (351) arranged at a central position near the top surface of the extension member (34), and a first toggle member (352) and a second toggle member (353) located on both sides of the intermediate piece (351); the first toggle member (352) extends upward from the top edge of the first side wall (34a), and the second toggle member (353) extends upward from the top edge of the second side wall (34b); the intermediate piece (351) smoothly transitions with the first toggle member (352) and the second toggle member (353).

10. The cleaning machine according to claim 6, characterized in that: The extension piece (34) is arranged near the center of the main body (31) and extends transversely. There are a plurality of water outlet holes (3101) which are opened in the area of ​​the main body (31) other than the extension piece (34).

11. The cleaning machine according to claim 2, characterized in that: The movable body (3) is arranged to be able to move up and down relative to the annular wall (21) and to rotate around its own axis, and the height of the movable body (3) in the first state is lower than the height of the movable body (3) in the second state.

12. The cleaning machine according to claim 11, characterized in that: The bottom of the protruding part of the movable body (3) is provided with a laterally extending protrusion (322), and the inner side wall of the annular wall (21) adjacent to the bottom has a limiting groove (2120) with an opening facing downward for the protrusion (322) to slide circumferentially therein, and also includes an elastic member acting on the movable body (3) so that the movable body (3) always has an upward movement tendency. When the movable body (3) is in a first state, the protrusion (322) is located in the limiting groove (2120), and when the movable body (3) is in a second state, the protrusion (322) is separated from the limiting groove (2120) and is located above the limiting groove (2120).

13. The cleaning machine according to claim 12, characterized in that: The inner side wall of the annular wall (21) is provided with a limiting piece (212) extending inwardly, and the limiting piece (212) includes a first limiting strip (2121), a second limiting strip (2122), a third limiting strip (2123) and a fourth limiting strip (2124) in sequence along the circumferential direction, the first limiting strip (2121) and the third limiting strip (2123) both extend along the circumferential direction, the second limiting strip (2122) is formed by extending upward from the first end of the first limiting strip (2121), the first end of the third limiting strip (2123) is connected to the upper end of the second limiting strip (2122), and the second end of the third limiting strip (2123) extends downward to form the fourth limiting strip (2124), and the second, third and fourth limiting strips form the limiting groove (2120).

14. The cleaning machine according to claim 7, characterized in that: The outer peripheral wall of the protruding part (32) extends laterally to form a flange (323), and the flange (323) extends along the circumference of the protruding part (32). The peripheral edge of the open top of the annular wall (21) extends inward to form a convex edge (213). When the movable body (3) is in the second state, the top of the flange (323) abuts against the bottom of the convex edge (213).

15. The cleaning machine according to claim 14, characterized in that: The bottom opening of the water flow channel (343) is located below the flange (323), and the flange (323) is located below the water outlet (321). The outer peripheral wall of the flange (323) is sleeved with a first sealing ring (8) that forms a sealed connection between the flange (323) and the inner peripheral wall of the annular wall (21).

16. The cleaning machine according to any one of claims 1 to 15, characterized in that: The water spray hole (201) is located on the peripheral side of the water outlet hole (3101), and the annular water spray area formed by the water spray hole (201) when rotating with the spray arm (2) is located on the periphery of the water outlet hole (3101).

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