Air inlet assembly for cleaning machine and cleaning machine

Abstract

The utility model relates to an air inlet assembly for a cleaning machine and the cleaning machine, the air inlet assembly comprises an air inlet pipe, an air duct is arranged in the air inlet pipe, and the air inlet pipe is provided with an air inlet and a through hole which are communicated with the air duct; the fan is used for driving airflow to flow from the air inlet to the through hole; the rotating drum is inserted into the through hole, the rotating drum can rotate around the axis of the rotating drum, an area defined by the rotating drum is an air outlet used for being communicated with a washing cavity of the cleaning machine, the direction, perpendicular to the axial direction, of the air outlet is called the radial direction, and the air outlet is sequentially divided into a plurality of air guide channels in the radial direction; the extending direction of the air guide channel inclines relative to the axial direction of the rotary drum, and the airflow coverage area is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the cleaning machine that can clean tableware and / or fruits and vegetables, and particularly relates to an air inlet assembly for a cleaning machine and the cleaning machine. BACKGROUND

[0002] The cleaning machine, such as a dishwasher, is increasingly common in kitchens. After cleaning tableware, there is a large amount of water vapor in the washing cavity of the dishwasher. In order to dry the tableware and prevent the growth of bacteria, a drying assembly for heating the airflow in the washing cavity is arranged on the outer side wall of the box. The drying assembly inputs hot airflow into the washing cavity to dry the tableware.

[0003] For example, a Chinese utility model patent with the patent number CN202320953636.2 (publication number CN220344366U) discloses a cleaning machine. The drying assembly includes an air inlet pipe, a heating element, and a second airflow driving member. The air inlet pipe has a second air inlet and a second air outlet. The second air inlet is in fluid communication with the outside world, and the second air outlet is in fluid communication with a second air inlet hole on the box. In the flow direction of the airflow, the second air outlet is located downstream of the second air inlet. The second airflow driving member is installed on the air inlet pipe. The second airflow driving member is used to drive the airflow from the outside world through the air inlet pipe to the second air outlet. In this embodiment, the second airflow driving member is a second fan. The air outlet of the second fan faces the second air inlet of the air inlet pipe. The air inlet of the second fan is in fluid communication with the outside world.

[0004] The heating element can be a PTC heating element installed in the air inlet pipe and located on the airflow flow path from the second air inlet to the second air outlet. After the airflow entering the air inlet pipe is heated into hot airflow by the heating element, the hot airflow enters the washing cavity to dry the tableware.

[0005] The current air inlet pipe is basically fixedly installed on the box by a nut. The position and area of the air inlet are fixed. When air is inhaled, the airflow enters the cavity in a single direction as previously set. The single air inlet direction cannot quickly spread to all directions. The coverage area is small, and part of the hot air is blocked back. The temperature field and flow field inside the cavity are unevenly distributed, which affects the drying effect. UTILITY MODEL CONTENTS

[0006] The first technical problem to be solved by the utility model is to provide an air inlet assembly for a cleaning machine that can increase the coverage area of the airflow entering the washing cavity in view of the current status of the prior art.

[0007] The second technical problem to be solved by the utility model is to provide a cleaning machine applying the above-mentioned air inlet assembly in view of the current status of the prior art.

[0008] The utility model discloses a technical scheme for solving the first technical problem is as follows: a kind of air inlet assembly for cleaning machine, including

[0009] Air inlet pipe, its inside has air duct, air inlet and through-hole are equipped on the air inlet pipe and are communicated with air duct;

[0010] Fan, for driving airflow to flow from air inlet to through-hole;

[0011] It is characterized by further comprising

[0012] Rotary drum, plug-in is in through-hole, the rotary drum can rotate around its axis, the area surrounded by the rotary drum is the air outlet for being communicated with the washing cavity of cleaning machine, the direction perpendicular to its axial direction of air outlet is called radial direction, the air outlet is sequentially separated into multiple air guide channels along its radial direction, the extension direction of the air guide channel is inclined relative to the axial direction of rotary drum.

[0013] In order to separate multiple air guide channels in the air outlet, and the guide channel is inclined relative to the rotary drum, multiple guide vanes are fixedly arranged in the rotary drum along the radial direction of the rotary drum, and the multiple guide vanes separate the air outlet into multiple air guide channels along the radial direction, and the guide vanes are inclined relative to the axial direction of the rotary drum.

[0014] Preferably, the guide vanes are inclined relative to the axial direction of the rotary drum at an angle of 0° to 80°, so that the area of airflow diffusion is large when the rotary drum rotates.

[0015] In order to make the rotary drum rotate, preferably, the air inlet assembly further comprises a driving mechanism connected to the rotary drum.

[0016] In order to facilitate the setting of the driving mechanism, the air inlet pipe is provided with a receiving cavity adjacent to the air duct, and the driving mechanism is arranged in the receiving cavity, so that the driving mechanism is hidden in the air inlet pipe, and the structure is compact, simple and beautiful.

[0017] The driving mechanism can have various structural forms, preferably, along the flow direction of the airflow, the two ends of the rotary drum are respectively referred to as upstream end and downstream end, the upstream end of the rotary drum is provided with a ring gear along its circumferential direction, the driving mechanism comprises a driving member and a first gear, the driving member and the first gear are drivingly connected, the ring gear and the first gear are directly engaged or indirectly engaged through an intermediate gear, and the first gear or the intermediate gear directly engaged with the ring gear partially penetrates the receiving cavity and extends into the air duct. The driving mechanism adopts gear transmission form, and the structure is compact and occupies small space.

[0018] In order to prevent the rotary drum from being taken out of the through hole, the central part of the rotary drum is provided with a mounting shaft extending along the axial direction thereof, the rotary drum and the mounting shaft are connected through a connecting rib, a mounting seat for rotatably mounting the mounting shaft is arranged in the air duct, and the mounting shaft rotates around the axial line thereof, and the cooperation between the mounting seat and the mounting shaft can make the rotary drum rotate and will not be taken out of the through hole.

[0019] In order to make the rotary drum rotate smoothly, a slot is arranged on the mounting seat and faces the through hole, a bearing is arranged in the slot, the bearing can rotate around the axial line of the slot but is fixed relative to the axial direction of the slot, and the mounting shaft is arranged in the bearing.

[0020] In order to fix the mounting seat, the bearing and the mounting shaft relative to the axial direction, the end face of the bearing facing the slot is referred to as a first end face, the end face of the bearing opposite to the first end face is referred to as a second end face, the mounting seat is provided with a first clamping leg capable of clamping the first end face of the bearing, and the mounting shaft is provided with a second clamping leg capable of clamping the second end face.

[0021] The utility model discloses a washing machine which solves the second technical problem, and the washing machine comprises a box body, an air inlet assembly, an air inlet pipe and a rotary drum.

[0022] In order to mount the air inlet assembly on the box body, the air inlet assembly further comprises a mounting sleeve, the mounting sleeve comprises a nut and a pressing part formed by extending radially outward from the end of the nut, a flange is formed around the through hole on the air inlet pipe, the nut is located between the flange and the rotary drum, a thread part capable of being screwed with the nut is arranged on the inner circumferential wall of the flange, the flange and the rotary drum partially penetrate the side wall of the box body, and the side wall of the box body is pressed between the pressing part and the air inlet pipe.

[0023] Compared with the prior art, the utility model has the advantages that: the utility model discloses a rotary drum, and the air outlet is divided into a plurality of air guide channels, the air guide channels are inclined relative to the axial direction of the rotary drum, air flow is guided to flow out by the air guide channels when the rotary drum rotates, the air speed and flow in the axial direction and the radial direction of the rotary drum are met, the coverage area of the air flow is large, the drying dead angle is reduced, the problem that the air flow direction is single and cannot quickly spread to all directions is solved, and the uniformity of the temperature field and the flow field in the washing cavity is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The utility model discloses a structure schematic view of an embodiment;

[0025] Figure 2 The utility model discloses another structure schematic view of an embodiment; Figure 1

[0026] Figure 3 The utility model discloses another structure schematic view of an embodiment;​Figure 2 A schematic diagram of the air intake assembly;

[0027] Figure 4 for Figure 3 A partial sectional view;

[0028] Figure 5 for Figure 3 A sectional view;

[0029] Figure 6 for Figure 5 A schematic diagram of the rotating drum in the diagram. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] like Figures 1 to 6 As shown, the cleaning machine of this preferred embodiment includes a housing 1 and an air inlet assembly A. The housing 1 has a washing chamber 11 inside. The air inlet assembly A includes an air inlet pipe 2, a fan 3, a rotating drum 4, a guide vane 41, and a drive mechanism.

[0032] The air inlet duct 2 has an air channel 21, and the air inlet duct 2 is provided with an air inlet 22 and a through hole 23 connected to the air channel 21. The fan 3 is used to drive the airflow from the air inlet 22 to the through hole 23. The fan 3 can adopt an existing structural form. The air inlet of the fan 3 is connected to the outside, and the air outlet of the fan 3 is connected to the air inlet 22. In this embodiment, there are two through holes 12 arranged vertically, and airflow is introduced into the washing chamber 11 from both holes, further making the flow field in the washing chamber 11 uniform.

[0033] The rotating cylinder 4 is inserted into the through hole 23. The rotating cylinder 4 can be installed in both through holes 23 or only in one of the through holes 23.

[0034] The rotating drum 4 can rotate around its axis. The area enclosed by the rotating drum 4 serves as the air outlet for communication with the washing chamber 11 of the washing machine. The direction perpendicular to the axis of the air outlet is called the radial direction. The air outlet is divided into multiple air guide channels 42 along its radial direction. The extension direction of the air guide channels 42 is inclined relative to the axis of the rotating drum 4. In this way, when the rotating drum 4 rotates, the airflow is guided out by the air guide channels 42, which simultaneously satisfies the wind speed and flow rate of the rotating drum 4 in both the axial and radial directions. This results in a large airflow coverage area, reduces drying dead zones, solves the problem of the single direction of the incoming airflow, and prevents it from spreading rapidly in all directions, thus improving the uniformity of the temperature field and flow field inside the washing chamber 11.

[0035] In order to separate multiple air guide channels 42 in the air outlet, and the guide channel is inclined relative to the rotating drum 4, multiple guide vanes 41 are fixed in the rotating drum 4 and arranged in the radial direction of the rotating drum 4. The multiple guide vanes 41 separate the air outlet into multiple air guide channels 42 in the radial direction, and the guide vanes 41 are arranged inclined relative to the axial direction of the rotating drum 4. The inclination angle α of the guide vanes 41 relative to the axial direction of the rotating drum 4 is between 0° and 120°, preferably between 0° and 80°, so that the rotating drum 4 can diffuse the airflow over a large area. The inclination angle of all guide vanes 41 relative to the axial direction of the rotating drum 4 can be the same or different.

[0036] The driving mechanism is drivingly connected to the rotating drum 4 for driving the rotating drum 4 to rotate. As shown in Figure 4 The driving mechanism is provided in the accommodating cavity 25 adjacent to the air duct 21.

[0037] In the flow direction of the airflow, the two ends of the rotating drum 4 are respectively referred to as the upstream end and the downstream end. The upstream end of the rotating drum 4 is provided with a ring gear 43 along the circumferential direction thereof. The driving mechanism includes a driving member 51 and a first gear 52. The driving member 51 and the first gear 52 are drivingly connected. The driving member 51 can adopt an existing gear motor. The output shaft of the gear motor can be engaged with the first gear 52. The ring gear 43 and the first gear 52 are directly engaged or indirectly engaged through an intermediate gear. The first gear 52 directly engaged with the ring gear 43 or the intermediate gear partially penetrates the accommodating cavity 25 and extends into the air duct 21.

[0038] When the cleaning machine enters the drying stage, the fan 3 works, and at the same time the driving member 51 controls the first gear 52 to rotate, driving the ring gear 43 to rotate, i.e. the rotating drum 4 rotates. In this embodiment, the transmission ratio of the gear motor, the first gear 52 and the ring gear 43 is 6:1:1. The rotating speed of the rotating drum 4 is set to 30-40 rpm / min. According to the transmission ratio, the rotating speed of the gear motor is 120-160 rpm / min. The guide vane 41 has an included angle of 0-120°. At this time, the effect is best. The airflow is quickly diffused to all directions through the guide vane 41, and the axial and radial wind speed and flow rate are met at the same time. The uniformity of the temperature field and the flow field inside the washing cavity 11 is improved, and the drying effect is improved.

[0039] The central part of the rotating drum 4 is provided with a mounting shaft 44 extending along the axial direction thereof, and the rotating drum 4 is connected with the mounting shaft 44 through a connecting rib, which is a local part of the partial guide vane 41 in the embodiment. The air duct 21 is provided with a mounting seat 26 for rotatably mounting the mounting shaft 44 thereon. The mounting shaft 44 rotates around the axis thereof. The mounting seat 26 is provided with a slot 231 with a slot opening facing the through hole 23. The slot 231 is provided with a bearing 6, which can rotate around the axis of the slot 231 but is fixed in the axial direction relative to the slot 231. The mounting shaft 44 is arranged in the bearing 6. The bearing 6 adopts the existing structure, and the cooperation among the bearing 6, the slot 231 and the mounting shaft 44 is the prior art, which will not be described herein again. The arrangement of the bearing 6 makes the rotating of the mounting shaft 44 smooth.

[0040] In order to axially fix the mounting seat 26, the bearing 6 and the mounting shaft 44, the end face of the bearing 6 facing the slot opening of the slot 231 is referred to as a first end face, and the end face of the bearing 6 opposite to the first end face is referred to as a second end face. The mounting seat 26 is provided with a first clamping leg 232 capable of clamping the first end face of the bearing 6. The mounting shaft 44 is provided with a second clamping leg 441 capable of clamping the second end face. The first clamping leg 232 and the second clamping leg 441 cooperatively form a limiting structure for limiting the axial position of the mounting shaft 44.

[0041] As shown in FIG. 1, Figure 5 The air inlet pipe 2 is arranged on the outer wall surface of the cabinet 1. The air inlet assembly A further comprises a mounting sleeve 7, which comprises a nut 71 and a pressing portion 72 extending radially outward from the end of the nut 71. The air inlet pipe 2 is provided with a flange 24 around the periphery of the through hole 23. The nut 71 is located between the flange 24 and the rotating drum 4. The inner peripheral wall of the flange 24 is provided with a ring-shaped threaded portion capable of being screwed with the nut 71. The flange 24 and the rotating drum 4 partially pass through the side wall of the cabinet 1. The side wall of the cabinet 1 is pressed between the pressing portion 72 and the air inlet pipe 2 to position the air inlet assembly A on the cabinet 1.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation. Since the embodiments disclosed in the present application can be arranged in different directions, these terms indicating the direction are only for illustration and should not be regarded as limitation. For example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. An air inlet assembly for a cleaning machine, comprising an air inlet pipe (2) having an air channel (21) therein, the air inlet pipe (2) being provided with an air inlet opening (22) and a through hole (23) in communication with the air channel (21); a fan (3) for driving air flow from the air inlet opening (22) to the through hole (23); characterized in that further comprising a rotating drum (4) inserted into the through hole (23), the rotating drum (4) being rotatable about its axis, the rotating drum (4) defining an air outlet opening for communication with a washing chamber (11) of the cleaning machine, a direction perpendicular to the axial direction of the air outlet opening being referred to as a radial direction, the air outlet opening being divided into a plurality of air guide channels (42) in sequence along the radial direction, the air guide channels (42) being inclined relative to the axial direction of the rotating drum (4).

2. The air intake assembly of claim 1, wherein: The rotating drum (4) is provided with a plurality of guide vanes (41) arranged in sequence along the radial direction of the rotating drum (4), the plurality of guide vanes (41) dividing the air outlet opening into a plurality of air guide channels (42) along the radial direction, and the guide vanes (41) being arranged obliquely relative to the axial direction of the rotating drum (4).

3. The air intake assembly of claim 2, wherein: The guide vanes (41) are obliquely arranged relative to the axial direction of the rotating drum (4) at an angle between 0° and 120°.

4. The air intake assembly of claim 1, wherein: Further comprising a driving mechanism connected to the rotating drum (4) for driving.

5. The air intake assembly of claim 4, wherein: The air inlet pipe (2) is provided with a receiving cavity (25) adjacent to the air channel (21), and the driving mechanism is arranged in the receiving cavity (25).

6. The air intake assembly of claim 5, wherein: In the direction of air flow, the two ends of the rotating drum (4) are referred to as an upstream end and a downstream end, respectively, and the upstream end of the rotating drum (4) is provided with a ring of gear rings (43) along its circumferential direction, the driving mechanism comprising a driving member (51) and a first gear (52), the driving member (51) and the first gear (52) being drivingly connected, the gear rings (43) and the first gear (52) being directly engaged or indirectly engaged through an intermediate gear, the first gear (52) directly engaged with the gear rings (43) or the intermediate gear partially penetrating the receiving cavity (25) and extending into the air channel (21).

7. The air intake assembly of any of claims 1-6, wherein: The central part of the rotating drum (4) is provided with a mounting shaft (44) extending along its axial direction, the rotating drum (4) and the mounting shaft (44) being connected through a connecting rib, the air channel (21) is provided with a mounting seat (26) for rotatably mounting the mounting shaft (44) thereon, and the mounting shaft (44) is rotatable about its axis.

8. The air intake assembly of claim 7, wherein: The mounting seat (26) is provided with a slot (231) with its opening facing the through hole (23), the slot (231) is provided with a bearing (6), the bearing (6) is rotatable about the axis of the slot (231) but fixed relative to the axial direction of the slot (231), and the mounting shaft (44) is arranged in the bearing (6).

9. The air intake assembly of claim 8, wherein: The end surface of the bearing (6) facing the opening of the slot (231) is referred to as a first end surface, and the end surface of the bearing (6) opposite to the first end surface is referred to as a second end surface, the mounting seat (26) is provided with a first locking leg (232) capable of locking the first end surface of the bearing (6), and the mounting shaft (44) is provided with a second locking leg (441) capable of locking the second end surface.

10. A cleaning machine characterized by, The air inlet assembly (A) and the box (1) are provided with the air inlet pipe (2) on the outer wall surface of the box (1), and the rotating drum (4) partially extends into the box (1).

Images