Cleaning machine

Abstract

The invention belongs to the technical field of kitchen electric appliances, and discloses a cleaning machine which comprises an inner container, a protective cover, a hot air assembly, a blocking piece and a connecting piece, the protective cover is installed on the inner wall of the inner container, and an air outlet and a first air inlet are formed in the protective cover; the hot air assembly comprises a heater and a fan, and the heater is located on a flowing path of airflow generated by the fan; a second air inlet is formed in the blocking piece, the blocking piece can rotate around the axis of the blocking piece, the connecting piece is located between the blocking piece and an impeller of the draught fan and can rotate along with the draught fan, a speed adjusting gap for containing a damping medium is reserved in the connecting position between the connecting piece and one of the blocking piece and the draught fan, and the blocking piece rotates relative to the protective cover and the impeller. By means of the technical scheme, the second air inlet and the first air inlet can be switched between the communication state and the staggered disconnection state, impeller gust air draft and air outlet can be achieved, compared with continuous air draft and air outlet, the air flowing path in the installation space is more complex, temperature rise of air in the installation space is facilitated, and the drying efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a cleaning machine. Background Art

[0002] A washing machine with a washing function, such as a dishwasher or a washing and disinfecting machine, mainly washes dishes automatically to free the user's hands, thereby improving the user's quality of life. A common washing machine usually includes an inner tank and a drying device, wherein a washing cavity for accommodating dishes is formed in the inner tank, and the drying device is used to blow hot air into the washing cavity, using the hot air to quickly dry the washed dishes, so that the user can use the dishes more conveniently.

[0003] In the related art, the drying device of the washing machine includes a fan and a heater. The fan draws the air in the washing chamber to the location of the heater, and then sends the air back to the washing chamber. However, since the air flows at a high speed when the fan is in operation, the air flows back into the washing chamber before being fully heated by the heater, resulting in an unsatisfactory drying effect. It takes a long time to complete the drying of the dishes, and the user experience is not good.

[0004] Therefore, there is an urgent need to provide a cleaning machine that can improve air-drying efficiency to solve the above problems. Summary of the invention

[0005] The purpose of the present application is to solve or at least alleviate part or all of the above problems. To this end, the purpose of the present application is to provide a cleaning machine, wherein the cleaning machine can be a dishwasher or a washing and disinfecting machine.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] The present application provides a cleaning machine, comprising:

[0008] An inner tank having a cleaning cavity;

[0009] A protective cover is located in the cleaning cavity and is buckled on the inner wall of the inner tank to enclose an installation space with the inner wall of the inner tank, the protective cover is provided with an air outlet connecting the installation space and the cleaning cavity, and the protective cover is provided with a first air inlet on an end wall opposite to the inner wall of the inner tank;

[0010] A hot air component, comprising a heater and a fan, wherein the fan is arranged in the inner container and has a driving shaft and an impeller coaxially connected to the driving shaft at its power output end, wherein the driving shaft and the impeller are arranged to be able to rotate synchronously relative to the inner container, wherein the driving shaft passes through the inner container and is located in the installation space, wherein the heater and the impeller are both located in the installation space, and wherein the heater is located on the flow path of the airflow;

[0011] A baffle plate is in a disc shape, and a second air inlet is formed on the baffle plate. The baffle plate can be rotatably arranged around its own axis so that the second air inlet is correspondingly connected to the first air inlet, or the second air inlet is staggered with the first air inlet;

[0012] A connecting member is located between the baffle and the impeller of the fan and can rotate with the fan. The connecting member and the baffle have the same rotation axis, and the first end of the connecting member is fixedly connected to one of the baffle and the fan, and the second end of the connecting member is movably constrained to the other of the baffle and the fan and leaves a speed regulating gap for accommodating the damping medium. When the impeller is in a rotating state, the baffle, the protective cover and the impeller all rotate relative to each other.

[0013] When the baffle rotates to the point where the second air inlet on it is staggered with the first air inlet on the protective cover, even if the impeller of the fan rotates, the air in the inner tank cannot enter the installation space, or only a small amount of air enters the installation space. At this time, the heat generated by the heater will accumulate in the installation space, causing the air temperature in the installation space to rise rapidly in a short period of time, until the baffle rotates to the point where the second air inlet on it is connected to the first air inlet on the protective cover. The impeller of the fan rotates to allow the air in the inner tank to enter the installation space from the first air inlet through the second air inlet, and the high-temperature air in the installation space flows back from the air outlet to the inner tank to air-dry the tableware. Based on this principle, when the heater is heated for the same time, compared with the technical solution without the baffle, this solution can obtain dry air with a higher temperature, thereby improving the drying efficiency of the drying device.

[0014] As an optional solution of the cleaning machine, the fan has a connecting end protruding from the impeller and extending toward the first air inlet, and the first end of the connecting member is fixedly connected to the connecting end.

[0015] As an optional solution of the cleaning machine, the driving shaft is passed through the impeller, and the end of the driving shaft protrudes from the surface of the windward side of the impeller to form the connecting end.

[0016] As an optional solution of the cleaning machine, the connecting member is a sleeve, a limiting hole is provided on the end surface of the first end of the sleeve, a threaded portion is provided in the limiting hole, and a threaded section adapted to the threaded portion is provided at the end of the drive shaft. The connecting member is a sleeve, and the sleeve can be threadedly connected to the threaded section of the drive shaft through the threaded portion inside the sleeve, thereby realizing a detachable fixed connection between the two, and the connection method is simple, effective, and easy to operate.

[0017] As an optional solution for the cleaning machine, the baffle has an axial hole for the second end of the sleeve to pass through, and the circumference of the axial hole extends toward the impeller to form a shaft seat, and the inner diameter of the shaft seat is larger than the outer diameter of the sleeve, so that a gap is left between the sleeve and the shaft seat to form the speed regulation gap.

[0018] As an optional solution of the cleaning machine, the shaft sleeve has a rib extending in its radial direction in the circumferential direction, and the rib abuts against the end face of the shaft seat.

[0019] As an optional solution for the cleaning machine, the protective cover is provided with a plurality of the first air inlets, and the baffle is provided with a plurality of the second air inlets, and the arrangement of the plurality of the first air inlets is the same as the arrangement of the plurality of the second air inlets, and each of the second air inlets has the same shape and size as the corresponding first air inlet, so that the plurality of the first air inlets are connected to the plurality of the second air inlets in a one-to-one correspondence, or the plurality of the first air inlets are staggered with the plurality of the second air inlets. When the baffle rotates relative to the protective cover, the second air inlets on the baffle are sometimes connected to the first air inlet of the protective cover, and sometimes disconnected from the first air inlet of the protective cover in a staggered manner, so that the air volume of the impeller becomes larger or smaller regularly. When the air volume becomes smaller, the temperature of the heating tube rises higher, and when the air volume becomes larger, the temperature of the wind brought out will be higher.

[0020] As an optional solution of the cleaning machine, each of the first air inlets and each of the second air inlets is in a fan shape, and the center of each of the fan shapes is located on the rotation axis of the baffle.

[0021] As an optional solution of the cleaning machine, a plurality of first air inlets arranged at intervals along the radial direction of the fan-shaped air inlet form a first air inlet group, and the protective cover is provided with a plurality of first air inlet groups arranged along the circumferential direction of the baffle;

[0022] A plurality of second air inlets arranged at intervals along the radial direction of the fan-shaped air inlet form a group of second air inlet groups, and the baffle is provided with a plurality of second air inlet groups arranged along the circumferential direction of the baffle. The fan-shaped radius of the plurality of first air inlets in the same group of first air inlet groups gradually increases from the center of the fan-shaped air inlet to the periphery. The fan-shaped radius of the plurality of second air inlets in the same group of second air inlet groups gradually increases from the center of the fan-shaped air inlet to the periphery.

[0023] As an optional solution for the cleaning machine, the first air inlets in two adjacent groups of the first air inlet groups are staggered in the radial direction of the fan shape; and the second air inlets in two adjacent groups of the second air inlet groups are staggered in the radial direction of the fan shape.

[0024] The beneficial effects of this application are:

[0025] The cleaning machine provided by the present application comprises an inner tank, a protective cover, a hot air component, a baffle and a connecting piece. The protective cover is installed on the inner wall of the inner tank, and is provided with an air outlet and a first air inlet; the hot air component comprises a heater and a fan, and the heater is located on the flow path of the airflow generated by the fan; a second air inlet is provided on the baffle, and the baffle is rotatable around its own axis. The connecting piece is located between the baffle and the impeller of the fan and can rotate with the fan. A speed regulating gap for accommodating a damping medium is reserved at the connection portion between the connecting piece and one of the baffle and the fan. The baffle, the protective cover and the impeller all rotate relative to each other, so that the second air inlet and the first air inlet can be switched between the connected and dislocated states, so that the impeller can realize gusts of air extraction and air discharge. Compared with continuous extraction and air discharge, the air flow path in the installation space will be more complicated, which is beneficial to the heating of the air in the installation space and can improve the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the partial structure of the cleaning machine provided in the embodiment of the present application.

[0028] Figure 2 A schematic diagram of an exploded view of a drying device provided in an embodiment of the present application is shown.

[0029] Figure 3 A partial cross-sectional schematic diagram of a drying device provided in an embodiment of the present application is shown.

[0030] Figure 4 Shows Figure 3 A partial enlarged view of the drying device.

[0031] Figure 5 A schematic diagram of an exploded view of a drying device provided in an embodiment of the present application is shown.

[0032] Figure 6 A schematic diagram of an exploded view of a blocking piece and a protective cover provided in an embodiment of the present application is shown.

[0033] Reference numerals:

[0034] 1. Inner liner;

[0035] 2. Protective cover; 21. Air outlet; 22. First air inlet; 220. First air inlet group;

[0036] 3. hot air assembly; 31. heater; 32. fan; 321. impeller; 322. drive shaft; 3220. connection end; 323. motor; 33. mounting frame;

[0037] 4. baffle; 41. second air inlet; 410. second air inlet group; 42. shaft hole; 43. shaft seat;

[0038] 5. Connecting piece; 51. Positioning hole; 52. Threaded part; 53. Retaining edge;

[0039] 6. Limiting piece;

[0040] 7. Sealing ring. DETAILED DESCRIPTION

[0041] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0042] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0043] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0044] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0045] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0046] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0047] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0048] Figure 1 It is a schematic diagram of the partial structure of the cleaning machine provided in the embodiment of the present application. Figure 2 The figure shows an exploded schematic diagram of the drying device provided in the embodiment of the present application. Figure 1 to Figure 2 As shown, the cleaning machine provided in the present application includes a box body, an inner tank 1 and a door body (not shown in the figure), the inner tank 1 is installed in the box body, the inner tank 1 has an opening for taking and placing tableware, the door body can be rotatably connected to the side of the opening to open and close the opening, and the door body can close the inner tank 1 to form a cleaning chamber to accommodate tableware when the opening is closed.

[0049] The cleaning machine also includes a washing device, which is used to clean the dishes in the cleaning chamber. The washing device can be selected from the washing device in a conventional cleaning machine, which will not be described in detail here. In addition, the cleaning machine also includes a protective cover and a drying device, the protective cover 2 is located in the cleaning chamber and is buckled on the inner wall of the inner tank 1 to enclose with the inner wall of the inner tank 1 to form an installation space, the protective cover 2 is provided with an air outlet 21 connecting the installation space and the cleaning chamber, and the protective cover 2 is provided with a first air inlet 22 on the end wall opposite to the inner wall of the inner tank 1; part of the drying device is installed in the installation space, and is used to draw the air in the cleaning chamber into the installation space, heat it, and then return the hot air to the cleaning chamber, so as to dry the cleaned dishes, reduce bacterial growth, and improve the safety of the product.

[0050] Figure 3 A partial cross-sectional schematic diagram of a drying device provided in an embodiment of the present application is shown. Figure 4 Shows Figure 3 A partial enlarged view of the drying device. Figure 5 The figure shows an exploded schematic diagram of the drying device provided in the embodiment of the present application. Figures 3 to 5 Combined with Figure 2 As shown, the drying device includes a hot air component 3, which includes a heater 31 and a fan 32. The fan 32 is arranged in the inner tank 1 and has a drive shaft 322 and an impeller 321 coaxially connected to the drive shaft 322 at its power output end. The drive shaft 322 and the impeller 321 are arranged to rotate synchronously relative to the inner tank 1. The drive shaft 322 passes through the inner tank 1 and is located in the installation space. The heater 31 and the impeller 321 are both located in the installation space, and the heater 31 is located on the flow path of the airflow. When the drying device is working, the impeller 321 of the fan 32 rotates to draw the air in the inner tank 1 from the first air inlet 22 into the installation space. The heater 31 heats the air and then flows back to the inner tank 1 from the air outlet 21. The hot air can be used to air-dry the tableware.

[0051] In order to improve the drying efficiency of the drying device, the drying device also includes a baffle 4 and a connecting member 5. The baffle 4 is disc-shaped, and a second air inlet 41 is opened on the baffle 4. The baffle 4 can be rotatably arranged around its own axis so that the second air inlet 41 is correspondingly connected to the first air inlet 22, or the second air inlet 41 is staggered with the first air inlet 22; the connecting member 5 is located between the baffle 4 and the impeller 321 of the fan 32 and can rotate with the fan 32. The connecting member 5 and the baffle 4 have the same rotation axis, and the first end of the connecting member 5 is fixedly connected to one of the baffle 4 and the fan 32, and the second end thereof is movably constrained to the other of the baffle 4 and the fan 32 and leaves a speed regulating gap for accommodating the damping medium, so that when the impeller 321 is in a rotating state, the baffle 4 and the protective cover 2 and the impeller 321 all rotate relative to each other.

[0052] When the baffle 4 rotates to the second air inlet 41 on it and is staggered with the first air inlet 22 on the protective cover 2, even if the impeller 321 of the fan 32 rotates, the air in the inner tank 1 cannot enter the installation space, or only a small amount of air enters the installation space (considering the gap between the baffle 4 and the protective cover 2). At this time, the heat generated by the heater 31 will be accumulated in the installation space, causing the air temperature in the installation space to rise rapidly in a short time, until the baffle 4 rotates to the second air inlet 41 on it and is connected to the first air inlet 22 on the protective cover 2. The impeller 321 of the fan 32 rotates to enable the air in the inner tank 1 to enter the installation space from the first air inlet 22 through the second air inlet 41, and the high-temperature air in the installation space flows back from the air outlet 21 to the inner tank 1 to air-dry the tableware. Based on this principle, when the heater 31 heats for the same time, compared with the technical solution without the baffle 4, this solution can obtain dry air with a higher temperature, thereby improving the drying efficiency of the drying device.

[0053] It should be emphasized that the present application is based on the differential rotation requirement between the baffle 4 and the impeller 321, so that a gap is left at the connection between the connector 5 and the fan 32 and one of the baffles 4, and a damping medium is placed in the gap. Only with the cooperation of the damping medium can the differential rotation effect be achieved.

[0054] In one embodiment, the fan 32 has a connecting end 3220 protruding from the impeller 321 and extending toward the first air inlet 22, and the first end of the connecting member 5 is fixedly connected to the connecting end 3220. At this time, the second end of the connecting member 5 is connected to the baffle 4, and a speed regulating gap for accommodating the damping medium is left between the two. On the one hand, since the connecting member 5 is fixedly connected to the connecting end 3220 of the fan 32, the connecting member 5 rotates synchronously with the fan 32; on the other hand, since the connecting member 5 and the baffle 4 are floatingly connected through the damping medium, although the baffle 4 can rotate with the connecting member 5 under the action of the damping medium, the rotation speed of the baffle 4 is not exactly the same as that of the connecting member 5. In other words, the rotation speed of the baffle 4 is not exactly the same as that of the impeller 321 of the fan 32, thereby realizing the differential rotation between the baffle 4 and the impeller 321 of the fan 32.

[0055] In this embodiment, the second end of the connecting member 5 has a circular cylinder, and the baffle 4 has an axial hole for the circular cylinder to pass through, and a gap is left between the axial hole and the circular cylinder to form the above-mentioned speed regulating gap, so that the baffle 4 can rotate relative to the connecting member 5. Further, a damping medium such as lubricating oil is injected into the speed regulating gap between the axial hole and the circular cylinder, and under the low friction force of the damping medium, the baffle 4 can rotate under the rotation of the connecting member 5, but the rotation speed of the baffle 4 is much lower than the rotation speed of the connecting member 5.

[0056] It can be understood that the connecting end 3220 can be directly formed on the side of the impeller 321 facing the baffle 4 (i.e., the surface on the windward side of the impeller 321), or it can be formed by the driving shaft 322 of the fan 32 passing through the surface on the windward side of the impeller 321. Either way, the above effect can be achieved.

[0057] In this embodiment, the drive shaft 322 is disposed on the impeller 321, and its end protrudes from the surface of the windward side of the impeller 321 to form a connection end 3220. This design method can ensure that the connecting member 5 and the impeller 321 rotate synchronously on the one hand, and on the other hand, the structure of the impeller 321 does not need to be greatly modified, which can reduce the processing and design cost of the impeller 321.

[0058] In other words, the driving shaft 322 of the fan 32 drives the impeller 321 and the connecting member 5 to rotate synchronously, and the baffle 4 rotates differentially relative to the connecting member 5. Under the low friction of the lubricating oil between the baffle 4 and the connecting member 5, the rotation speed of the baffle 4 is much lower than the rotation speed of the impeller 321. Since the second air inlet 41 of the baffle 4 and the first air inlet 22 of the protective cover 2 can switch between the connected and dislocated states under the rotation of the baffle 4, the impeller 321 can realize gusts of wind extraction and air discharge, that is, the air intake and air outlet under the action of the impeller 321 regularly increase and decrease. Compared with continuous extraction and air discharge, the air flow path in the installation space will be more complicated, which is more conducive to the heating of the air in the installation space, thereby improving the drying efficiency of the drying device.

[0059] In order to install the fan 32 on the outer wall of the inner tank 1, the drying device also includes a mounting frame 33, and the motor 323 of the fan 32 is fixed on the mounting frame 33 and located outside the inner tank 1, and the mounting frame 33 is fixedly connected to the inner tank 1. In addition, a sealing member is provided between the mounting frame 33 and the inner tank 1, which can support the mounting frame 33 and absorb the vibration of the mounting frame 33 caused by the operation of the fan 32 on the one hand; on the other hand, since the driving shaft 322 of the fan 32 passes through the inner tank 1, that is, the inner tank 1 has a through hole for the driving shaft 322 of the fan 32 to pass through, the sealing member improves the sealing of the connection position between the driving shaft 322 and the inner tank 1, and prevents the water in the inner tank 1 from flowing out of the inner tank 1 from the through hole to the motor 323 of the fan 32.

[0060] The end of the driving shaft 322 has a non-circular cylinder, and the impeller 321 has a through hole that matches the non-circular cylinder, so that the impeller 321 can rotate synchronously with the driving shaft 322 .

[0061] The drying device further includes a limiting piece 6, which is sleeved outside the non-circular cylinder and abuts against other parts of the driving shaft 322. During assembly, the limiting piece 6 is first sleeved outside the non-circular cylinder of the driving shaft 322, and then the impeller 321 is sleeved outside the non-circular main body of the driving shaft 322, and finally the connecting member 5 is fixedly connected to the non-circular cylinder, so that the impeller 321 is limitedly installed between the limiting piece 6 and the connecting member 5. Furthermore, in order to limit the limiting piece 6, the outer surface of the non-circular cylinder also has a slot, and the limiting piece 6 is clamped in the slot.

[0062] The connecting member 5 is a sleeve, and a limiting hole 51 is provided on the end surface of the first end of the sleeve, and a threaded portion 52 is provided in the limiting hole 51. The end of the driving shaft 322 has a threaded section adapted to the threaded portion 52. The connecting member 5 is a sleeve, and the sleeve can be threadedly connected with the threaded section of the driving shaft 322 through the threaded portion 52 inside the sleeve, thereby realizing a detachable fixed connection between the two. The connection method is simple, effective, and easy to operate.

[0063] Furthermore, one end of the sleeve adjacent to the impeller 321 has a regular polygonal prism structure, such as a regular hexagonal prism structure, which can be easily matched with the regular hexagonal prism structure using a wrench to connect the sleeve to the end of the drive shaft 322 .

[0064] In order to facilitate the floating connection between the baffle 4 and the shaft sleeve, the baffle 4 has an axial hole 42 through which the second end of the shaft sleeve can pass, and the circumference of the axial hole 42 extends toward the impeller 321 to form a shaft seat 43. The inner diameter of the shaft seat 43 is larger than the outer diameter of the shaft sleeve, so that a gap is left between the shaft sleeve and the shaft seat 43 to form a speed regulating gap. It can be understood that by injecting a damping medium, such as lubricating oil with a certain viscosity, into the speed regulating gap, differential rotation between the baffle 4 and the shaft sleeve can be achieved.

[0065] In this embodiment, the shaft sleeve has a rib 53 extending in its radial direction in the circumferential direction, and the rib 53 abuts against the end surface of the shaft seat 43 to locate the axial position of the shaft sleeve.

[0066] Figure 6 FIG. 2 shows an exploded schematic diagram of the baffle 4 and the protective cover 2 provided in an embodiment of the present application. Figure 6As shown, the protective cover 2 is provided with a plurality of first air inlets 22, and the baffle 4 is provided with a plurality of second air inlets 41. The arrangement of the plurality of first air inlets 22 is the same as that of the plurality of second air inlets 41, and each second air inlet 41 has the same shape and size as the corresponding first air inlet 22, so that the plurality of first air inlets 22 are connected with the plurality of second air inlets 41 one by one, or the plurality of first air inlets 22 are staggered with the plurality of second air inlets 41. With such an arrangement, when the baffle 4 rotates relative to the protective cover 2, the second air inlets 41 on the baffle 4 are sometimes connected with the corresponding first air inlet 22 of the protective cover 2, and sometimes disconnected from the first air inlet 22 of the protective cover 2 by staggering, so that the air volume of the impeller 321 is regularly increased or decreased. When the air volume is decreased, the temperature of the heating tube will rise higher, and when the air volume is increased, the temperature of the wind brought out will be higher.

[0067] In this embodiment, the shapes of the first air inlets 22 and the second air inlets 41 are all fan-shaped, and the center of each fan-shaped circle is located on the rotation axis of the baffle 4. Such a configuration not only facilitates the processing and forming of the first air inlets 22 and the second air inlets 41, but also facilitates the corresponding matching of the second air inlets 41 with the first air inlets 22 while increasing the number of the first air inlets 22 and the second air inlets 41, so as to achieve the above-mentioned air inlet effect of sometimes connected and sometimes disconnected.

[0068] A plurality of first air inlets 22 arranged at intervals along the radial direction of the fan form a first air inlet group 220, and a plurality of first air inlet groups 220 arranged along the circumferential direction of the baffle 4 are provided on the protective cover 2; a plurality of second air inlets 41 arranged at intervals along the radial direction of the fan form a second air inlet group 410, and a plurality of second air inlet groups 410 arranged along the circumferential direction of the baffle 4 are provided on the baffle 4. It should be noted that the fan radius of the plurality of first air inlets 22 in the same group of first air inlet groups 220 gradually increases from the center of the fan to the periphery. Similarly, the fan radius of the plurality of second air inlets 41 in the same group of second air inlet groups 410 gradually increases from the center of the fan to the periphery.

[0069] Furthermore, the first air inlets 22 in two adjacent groups of first air inlet groups 220 are staggered in the radial direction of the fan; the second air inlets 41 in two adjacent groups of second air inlet groups 410 are staggered in the radial direction of the fan. With such an arrangement, while increasing the number of the first air inlets 22 and the second air inlets 41, the switching efficiency between the second air inlets 41 and the first air inlets 22 in the two states of connection and staggered disconnection is improved, and further, while realizing gust exhaust and air discharge, the overall air intake and air discharge of the drying device can be increased, thereby improving the drying efficiency of the drying device.

[0070] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A cleaning machine, characterized in that: include: An inner tank (1) having a cleaning cavity; A protective cover (2) is located in the cleaning chamber and is buckled on the inner wall of the inner container (1) so as to enclose an installation space with the inner wall of the inner container (1), the protective cover (2) is provided with an air outlet (21) connecting the installation space with the cleaning chamber, and the protective cover (2) is provided with a first air inlet (22) on an end wall opposite to the inner wall of the inner container (1); A hot air component (3), comprising a heater (31) and a fan (32), wherein the fan (32) is arranged on the inner container (1) and has a driving shaft (322) and an impeller (321) coaxially connected to the driving shaft (322) at its power output end, wherein the driving shaft (322) and the impeller (321) are arranged to be able to rotate synchronously relative to the inner container (1), the driving shaft (322) passes through the inner container (1) and is located in the installation space, the heater (31) and the impeller (321) are both located in the installation space, and the heater (31) is located on the flow path of the airflow; The baffle (4) is in a disc shape, and a second air inlet (41) is formed on the baffle (4). The baffle (4) can be rotatably arranged around its own axis so that the second air inlet (41) is correspondingly connected to the first air inlet (22), or the second air inlet (41) is staggered with the first air inlet (22); A connecting member (5) is located between the baffle (4) and the impeller (321) of the fan (32) and can rotate with the fan (32). The connecting member (5) and the baffle (4) have the same rotation axis, and a first end of the connecting member (5) is fixedly connected to one of the baffle (4) and the fan (32), and a second end of the connecting member (5) is movably constrained on the other of the baffle (4) and the fan (32) and leaves a speed regulating gap for accommodating a damping medium. When the impeller (321) is in a rotating state, the baffle (4), the protective cover (2) and the impeller (321) all rotate relative to each other.

2. The cleaning machine according to claim 1, characterized in that: The fan (32) has a connecting end (3220) protruding from the impeller (321) and extending in the direction of the first air inlet (22), and the first end of the connecting member (5) is fixedly connected to the connecting end (3220).

3. The cleaning machine according to claim 2, characterized in that: The driving shaft (322) is inserted into the impeller (321), and the end thereof protrudes from the surface of the windward side of the impeller (321) to form the connecting end (3220).

4. The cleaning machine according to claim 3, characterized in that: The connecting member (5) is a shaft sleeve, and a limiting hole (51) is provided on the end surface of the first end of the shaft sleeve. A threaded portion (52) is provided in the limiting hole (51), and a threaded section adapted to the threaded portion (52) is provided at the end of the driving shaft (322).

5. The cleaning machine according to claim 4, characterized in that: The baffle (4) has an axial hole (42) through which the second end of the shaft sleeve can pass, and the circumference of the axial hole (42) extends in the direction of the impeller (321) to form a shaft seat (43), and the inner diameter of the shaft seat (43) is larger than the outer diameter of the shaft sleeve, so that a space is left between the shaft sleeve and the shaft seat (43) to form the speed regulation gap.

6. The cleaning machine according to claim 5, characterized in that: The shaft sleeve has a rib (53) extending in its radial direction in the circumferential direction, and the rib (53) abuts against the end surface of the shaft seat (43).

7. The cleaning machine according to any one of claims 1 to 6, characterized in that: The protective cover (2) is provided with a plurality of the first air inlets (22), and the baffle (4) is provided with a plurality of the second air inlets (41). The arrangement of the plurality of the first air inlets (22) is the same as the arrangement of the plurality of the second air inlets (41), and each of the second air inlets (41) has the same shape and size as the corresponding first air inlet (22), so that the plurality of the first air inlets (22) are connected to the plurality of the second air inlets (41) in a one-to-one correspondence, or the plurality of the first air inlets (22) are staggered with the plurality of the second air inlets (41).

8. The cleaning machine according to claim 7, characterized in that: The shape of each of the first air inlets (22) and each of the second air inlets (41) is a sector, and the center of each of the sectors is located on the rotation axis of the baffle (4).

9. The cleaning machine according to claim 8, characterized in that: A plurality of first air inlets (22) arranged at intervals along the sector-shaped radial direction form a first air inlet group (220), and the protective cover (2) is provided with a plurality of first air inlet groups (220) arranged along the circumferential direction of the baffle (4); A plurality of second air inlets (41) arranged at intervals along the fan-shaped radial direction form a second air inlet group (410), and the baffle (4) is provided with a plurality of second air inlet groups (410) arranged along the circumferential direction of the baffle (4).

10. The cleaning machine according to claim 9, characterized in that: The first air inlets (22) in two adjacent groups of the first air inlet groups (220) are arranged in a staggered manner in the radial direction of the sector; The second air inlets (41) in two adjacent groups of the second air inlet groups (410) are arranged in a staggered manner in the radial direction of the sector.

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