Dish washing machine

Abstract

The utility model relates to a dish-washing machine which comprises a box body, a washing cavity is formed in the box body, and an air passing opening communicated with the washing cavity is formed in the side wall of the box body; the air inlet assembly comprises an air inlet pipe, an air inlet and an air outlet which are communicated with the interior of the air inlet pipe are formed in the air inlet pipe, the air inlet pipe is arranged on the side wall of the box body, the area of the air outlet is smaller than that of the air passing opening, the air inlet pipe comprises a first pipe body and a second pipe body, the first pipe body is fixed relative to the box body, the air inlet is formed in the first pipe body, and the second pipe body is fixed relative to the box body. The air outlet is formed in the second pipe body, the second pipe body can move relative to the first pipe body, the second pipe body shields the air passing opening all the time, and the air outlet is communicated with the air passing opening all the time. Therefore, the position of the air outlet can be moved, the flowing path of the airflow is flexible and variable, and the coverage area of the airflow is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dish-washing machine. BACKGROUND

[0002] The dish-washing machine has been applied more and more commonly in the kitchen at present, and there is a large amount of water vapor in the washing cavity of the dish-washing machine after the tableware is cleaned. In order to dry the tableware and prevent bacteria from breeding, a drying assembly for heating the airflow in the washing cavity is further arranged on the outer side wall of the box body. Hot airflow is input into the washing cavity through the drying assembly to dry the tableware.

[0003] A cleaning machine is disclosed in Chinese Utility Model Patent No. CN202320953636.2 (Publication No. CN220344366U), which includes an air inlet pipeline, a heating element, and a second airflow driving member. The air inlet pipeline 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 body. Along 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 pipeline, and the second airflow driving member is used to drive the outside airflow into the second air outlet through the air inlet pipeline. In this embodiment, the second airflow driving member is a second fan. The air outlet hole of the second fan faces the second air inlet of the air inlet pipeline, and the air inlet hole 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 pipeline and located on the airflow flow path from the second air inlet to the second air outlet. After the airflow entering the air inlet pipeline 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 pipeline is basically fixedly installed on the box body by a nut. The position and area of the air inlet are fixed and cannot be changed. 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 technical problem to be solved by the utility model is to provide a dish-washing machine that can make the airflow entering the washing cavity have a large coverage area.

[0007] The technical solution adopted by the utility model to solve the above technical problem is as follows: a dish-washing machine, which comprises

[0008] A box body has a washing cavity inside. A wind passage is arranged on the side wall of the box body and is in communication with the washing cavity.

[0009] An air inlet assembly comprises

[0010] The air inlet pipe is provided with an air inlet and an air outlet, and the air inlet pipe is arranged on the side wall of the box body, and the air outlet and the air passage are in communication;

[0011] The area of the air outlet is smaller than that of the air passage, the air inlet pipe comprises a first pipe body and a second pipe body, the first pipe body is fixed relative to the box body, the air inlet is arranged on the first pipe body, the air outlet is arranged on the second pipe body, the second pipe body is movable relative to the first pipe body, and the second pipe body always covers the air passage, and the air outlet is always in communication with the air passage.

[0012] The second pipe body can move or rotate relative to the first pipe body in multiple directions, preferably, the air passage extends vertically, and the second pipe body can move up and down relative to the first pipe body.

[0013] In order to enable the second pipe body to move up and down relative to the first pipe body and to be in fluid communication therebetween at all times, a part of the first pipe body downstream of the air inlet at least partially extends vertically to form a vertical part, and the second pipe body is inserted and fitted with the vertical part.

[0014] In order to guide the movement track of the second pipe body, a vertically extending sliding groove is arranged on the second pipe body, a guide column is arranged on the side wall of the box body and inserted into the sliding groove, and the sliding groove and the guide column can relatively displace vertically.

[0015] The second pipe body can be manually driven to move up and down, but it is laborious and inconvenient, so the dishwasher further comprises a driving mechanism for driving the second pipe body to move up and down, and the driving mechanism is drivingly connected with the second pipe body.

[0016] The driving mechanism can have various structural forms, such as a push rod motor, or the second pipe body is provided with a vertically extending rack, and the driving mechanism comprises a driving member and a first gear connected with the driving member in a driving manner, and the first gear directly or indirectly engages with the rack.

[0017] In the above scheme, the direction of the airflow along the second pipe body is referred to as the length direction of the second pipe body, the second pipe body is provided with side plates on both sides in the width direction thereof, the side plates are provided with vertically extending sliding grooves, the side wall of the box body is provided with guide columns inserted into the sliding grooves, and the sliding grooves and the guide columns can relatively displace vertically, and the side wall of one of the side plates is provided with a tooth portion to form the rack, and this structure is compact.

[0018] If the second pipe body directly contacts with the side wall of the box, the box is easy to be abraded, and the box is also easy to be vibrated when the second pipe body moves up and down. Therefore, the fixing plate is arranged on the box, the through hole corresponding to the air passing opening is arranged on the fixing plate, and the second pipe body is located outside the fixing plate and can move up and down relative to the fixing plate. The fixing plate separates the box and the second pipe body, and can reduce the vibration and abrasion of the box.

[0019] Preferably, the outer side of the fixing plate is provided with the pressing plate connected with the fixing plate, and the second pipe body is movably arranged between the fixing plate and the pressing plate.

[0020] Because the second pipe body needs to move up and down, a gap is necessarily formed between the second pipe body and the fixing plate and the pressing plate. In order to prevent the second pipe body from being abutted against the fixing plate or the pressing plate when moving, the spring acting on the second pipe body is further arranged, one end of the spring is abutted against the second pipe body, and the other end of the spring is abutted against the fixing plate or the pressing plate. The spring plays a correcting role, and prevents the second pipe body from being abutted against the fixing plate or the pressing plate.

[0021] In order to prevent air leakage between the second pipe body and the box, the side wall of the box is provided with a ring-shaped flange around the air passing opening, and the sealing ring is arranged on the flange. The sealing ring comprises the annular body arranged on the flange and the fin arranged on the annular body and extending towards the second pipe body. The fin is always abutted against the second pipe body, and the fixing plate is abutted against the annular body.

[0022] In order to prevent air leakage between the second pipe body and the box, the side wall of the box is provided with a ring-shaped flange around the air passing opening, and the sealing ring is arranged on the flange. The sealing ring is always in sealing contact with the second pipe body.

[0023] Compared with the prior art, the utility model has the advantages that: the utility model discloses the air inlet pipe is designed in two parts, the second pipe body can move relative to the first pipe body, the position of the air outlet can also be moved, the path of the airflow is flexible and variable, the coverage area of the airflow is increased, the airflow can be quickly diffused in all directions, the uniformity of the temperature field and the flow field in the box is improved, and the air inlet amount at any position in the moving path can be selected according to the functional requirements, the air inlet amount at the position is strengthened, and the drying of the specific area is strengthened. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structure schematic view of another direction of the utility model embodiment (the second pipe body is at the upper limit position);

[0025] Figure 2 It is a structure schematic view of another direction of the utility model embodiment (the second pipe body is at the upper limit position); Figure 1

[0026] Figure 3 It is a structure schematic view of another direction of the utility model embodiment (the second pipe body is at the upper limit position); Figure 1 It is a structure schematic view of another direction of the utility model embodiment (the second pipe body is at the upper limit position);​

[0027] Figure 4 is an enlarged view of A of Figure 3 ;

[0028] Figure 5 is a partial lateral cross-sectional view of Figure 1 ;

[0029] Figure 6 is an exploded schematic view of Figure 1 without the cabinet;

[0030] Figure 7 is a schematic view of the structure of Figure 1 without the cabinet (the second tube is in the lower limit position). DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in connection with the drawings.

[0032] As shown in Figures 1 to 7 , the dishwasher of the preferred embodiment is used for cleaning tableware, which can be dishes, cutlery, pots and the like, and the dishwasher comprises a cabinet 1, an air inlet assembly and a driving mechanism. In the drawings of the present embodiment, the cabinet 1 is only partially shown, and the partial cabinet 1 can adopt an existing structure.

[0033] As shown in Figure 1 , 2 , the cabinet 1 has a washing cavity 11 inside, and the side wall of the cabinet 1 is provided with an air passing opening 12 in communication with the washing cavity 11.

[0034] The air inlet assembly comprises a fan 8, an air inlet pipe 2 and a heating element, the air inlet pipe 2 is arranged on the side wall of the cabinet 1, and the air inlet pipe 2 is provided with an air inlet opening 21 and an air outlet opening 22 in communication with the inside thereof.

[0035] The air inlet pipe 2 comprises a first tube 23 and a second tube 24, the first tube 23 is fixed relative to the cabinet 1, the air inlet opening 21 is arranged on the first tube 23, the air outlet opening 22 is arranged on the second tube 24, the second tube 24 can move relative to the first tube 23, and the second tube 24 always shields the air passing opening 12, the air outlet opening 22 is always in communication with the air passing opening 12, and the area of the air outlet opening 22 is smaller than that of the air passing opening 12.

[0036] The heating element is arranged in the first tube 23, and the heating element can adopt an existing PTC heating element. The air inlet hole of the fan 8 is in communication with the outside, and the air outlet hole of the fan 8 is in communication with the air inlet opening 21, so that the air inlet opening 21 is in communication with the outside. The fan 8 sucks the outside airflow into the air inlet pipe 2, which is heated by the heating element and then flows into the washing cavity 11 of the cabinet 1 to dry the tableware.

[0037] In this embodiment, the air passage 12 extends vertically, and the second tube 24 can move up and down relative to the first tube 23. In the flow direction of the air flow, the part of the first tube 23 downstream of the air inlet 21 at least partially extends vertically to form a vertical part 25, and the second tube 24 is inserted and fitted with the vertical part 25. The air outlet end of the vertical part 25 is provided with a sealing ring 251 in sealing contact with the second tube 24, so as to prevent air leakage between the first tube 23 and the second tube 24.

[0038] The air outlet 22 is inserted with a flow guide ring 9, which is located in the air passage 12 and can abut the upper end or the lower end of the air passage 12, so as to limit the up and down movement stroke of the second tube 24.

[0039] The direction of the air flow along the second tube 24 is referred to as the length direction of the second tube 24, and the second tube 24 is provided with a side plate 26 on both sides in the width direction thereof. The side plate 26 is provided with a vertical sliding groove 261, and the side wall of the box body 1 is provided with a guide column 3 inserted in the sliding groove 261. The sliding groove 261 and the guide column 3 can relatively displace vertically, so as to guide the movement track of the second tube 24.

[0040] The driving mechanism is drivingly connected with the second tube 24, and is used for driving the second tube 24 to move up and down. The second tube 24 is provided with a vertical rack 262. In this embodiment, the side wall of one of the side plates 26 is provided with a tooth part to form the rack 262. The driving mechanism includes a driving member 4 and a first gear 41 drivingly connected with the driving member 4. The first gear 41 directly or indirectly engages with the rack 262. In this embodiment, the driving member 4 is a gear motor, i.e. an electric motor with a gear. The transmission ratio of the gear motor and the first gear 41 is 6:1.

[0041] If the second tube 24 directly contacts the side wall of the box body 1, the box body 1 is prone to be abraded, and when the second tube 24 moves up and down, the box body 1 can also be vibrated. Therefore, the box body 1 is provided with a fixing plate 5 and a pressing plate 6. The fixing plate 5 is provided with a through hole 51 corresponding to the air passage 12. The second tube 24 is located outside the fixing plate 5 and can move up and down relative to the fixing plate 5. The fixing plate 5 separates the box body 1 and the second tube 24, so as to reduce the vibration and abrasion of the box body 1. The outer side of the fixing plate 5 is provided with the pressing plate 6 connected therewith. The second tube 24 is movably located between the fixing plate 5 and the pressing plate 6. The pressing plate 6 limits the second tube 24.

[0042] Because the second pipe body 24 needs to move up and down, therefore, there must be a gap between the second pipe body 24 and the fixed plate 5 and the pressing plate 6, in order to prevent the second pipe body 24 from being hard interfered with or abutting against the fixed plate 5 or the pressing plate 6 when moving, the dishwasher further comprises a spring 7 acting on the second pipe body 24, one end of the spring 7 abutting against the second pipe body 24 and the other end abutting against the fixed plate 5 or the pressing plate 6, the spring 7 plays a correcting role, preventing the second pipe body 24 from being hard interfered with or abutting against the fixed plate 5 or the pressing plate 6.

[0043] A side wall of the box body 1 is provided with a flange 13 around the air passage 12, the flange 13 is provided with a sealing ring 14, the sealing ring 14 comprises an annular body 141 mounted on the flange 13 and a fin 142 extending from the annular body 141 and towards the second pipe body 24, the fixed plate 5 abutting against the annular body 141 plays a fixing role on the sealing ring 14, the fin 142 always abutting against the second pipe body 24 prevents air leakage between the second pipe body 24 and the box body 1.

[0044] The working process of the dishwasher of the embodiment is as follows:

[0045] In the drying stage, the drying assembly introduces hot air flow into the washing cavity 11, and the driving member 4 drives the first gear 41 to rotate, the rack 262 moves up and down at a speed of 50-200mm / min, driving the second pipe body 24 to move up and down, and stopping at any position in the moving path to strengthen the air inlet amount at this position and strengthen the drying of the specific area, the scheme of the embodiment can also improve the uniformity of the temperature field and flow field inside the washing cavity 11 and improve the drying effect.

[0046] In the description of the utility model, it is understood that the orientation or positional relationship indicated by 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" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to 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 disclosed embodiments of the utility model can be arranged in different directions, so these orientation indicating terms are only as an illustration and should not be regarded as a limitation, for example, "upper", "lower" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A dishwasher comprising a cabinet (1) having a washing cavity (11) inside, a through-air opening (12) being provided on a side wall of the cabinet (1) and communicating with the washing cavity (11); an air inlet assembly comprising an air inlet pipe (2) having an air inlet opening (21) and an air outlet opening (22) communicating with the inside of the air inlet pipe (2), the air inlet pipe (2) being arranged on the side wall of the cabinet (1), the air inlet opening (21) communicating with the outside, and the air outlet opening (22) communicating with the through-air opening (12) correspondingly; characterized in that the area of the air outlet opening (22) is smaller than that of the through-air opening (12), the air inlet pipe (2) comprises a first pipe body (23) and a second pipe body (24), the first pipe body (23) is fixed relative to the cabinet (1), the air inlet opening (21) is arranged on the first pipe body (23), the air outlet opening (22) is arranged on the second pipe body (24), the second pipe body (24) is movable relative to the first pipe body (23), and the second pipe body (24) always covers the through-air opening (12), and the air outlet opening (22) always communicates with the through-air opening (12).

2. The dishwasher according to claim 1, characterized in that: The through-air opening (12) extends vertically, and the second pipe body (24) is movable up and down relative to the first pipe body (23).

3. The warewash machine of claim 2, further comprising: In the flow direction of the air flow, the part of the first pipe body (23) downstream of the air inlet opening (21) extends vertically at least partially to form a vertical part (25), and the second pipe body (24) is inserted and fitted with the vertical part (25).

4. The warewash machine of claim 2, further comprising: A flow guide ring (9) is inserted and fitted in the air outlet opening (22), and the flow guide ring (9) is located in the through-air opening (12) and can abut against the upper end or the lower end of the through-air opening (12).

5. The warewash machine of claim 2, further comprising: A vertically extending sliding groove (261) is arranged on the second pipe body (24), a guide column (3) is arranged on the side wall of the cabinet (1) and inserted and fitted in the sliding groove (261), and the sliding groove (261) and the guide column (3) can produce relative displacement vertically.

6. The dishwasher according to any one of claims 1 to 4, characterized in that: A driving mechanism for driving the second pipe body (24) to move up and down is further provided, and the driving mechanism is drivingly connected with the second pipe body (24).

7. The warewash machine of claim 6, further comprising: A vertically extending rack (262) is arranged on the second pipe body (24), and the driving mechanism comprises a driving member (4) and a first gear (41) drivingly connected with the driving member (4), and the first gear (41) directly or indirectly meshes with the rack (262).

8. The warewash machine of claim 7, further comprising: The direction of the air flow along the second pipe body (24) is referred to as the length direction of the second pipe body (24), and side plates (26) are arranged on both sides of the second pipe body (24) in the width direction thereof, a vertically extending sliding groove (261) is arranged on the side plate (26), a guide column (3) is arranged on the side wall of the cabinet (1) and inserted and fitted in the sliding groove (261), the sliding groove (261) and the guide column (3) can produce relative displacement vertically, and a tooth portion is arranged on the side wall of one of the side plates (26) to form the rack (262).

9. The dishwasher according to any one of claims 1 to 5, characterized in that: The box (1) is provided with a fixed plate (5), the fixed plate (5) is provided with a through hole (51) corresponding to the air passage (12), and the second pipe body (24) is located outside the fixed plate (5) and can move up and down relative to the fixed plate (5). 10.The dish washer of claim 9, wherein: The outer side of the fixed plate (5) is provided with a pressing plate (6) connected thereto, and the second pipe body (24) is movably located between the fixed plate (5) and the pressing plate (6).

11. The warewash machine of claim 10, further comprising: A spring (7) acting on the second pipe body (24) is further included, one end of the spring (7) abuts against the second pipe body (24), and the other end abuts against the fixed plate (5) or the pressing plate (6).

12. The warewash machine of claim 9, further comprising: A turn-up (13) is arranged on the side wall of the box (1) around the air passage (12), a sealing ring (14) is arranged on the turn-up (13), the sealing ring (14) comprises an annular body (141) arranged on the turn-up (13) and a fin (142) arranged on the annular body (141) and extending towards the second pipe body (24), the fin (142) always abuts against the second pipe body (24), and the fixed plate (5) abuts against the annular body (141).

13. The dishwasher according to any one of claims 1 to 5, characterized in that: A turn-up (13) is arranged on the side wall of the box (1) around the air passage (12), a sealing ring (14) is arranged on the turn-up (13), and the sealing ring (14) always sealingly contacts the second pipe body (24).

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