Drying air duct and drawer type washing equipment

Abstract

The invention provides a drying air duct and drawer type washing equipment, the drying air duct is used for surrounding a drum opening of a washing drum, an air duct inlet and an air duct outlet are formed in the drying air duct, and the air duct inlet and the air duct outlet are both used for communicating the drying air duct with the washing drum; a water retaining structure is arranged at the position, close to the air duct outlet, of the drying air duct and used for preventing washing water in the washing drum from entering the drying air duct through the air duct outlet when the drawer type washing equipment runs a washing program; the device is suitable for drawer type washing equipment and can prevent water flow from flowing backwards into a drying air duct. When the drawer type washing equipment runs a drying program, drying airflow in the drying air duct can enter the washing cylinder through the air duct outlet; the flow of drying airflow is not affected, and the drying efficiency is guaranteed; the structure is simple, and the requirement for the height of the washing cylinder is low; the problems that in the prior art, a balancing ring is used for blocking water flow from flowing backwards along the inner wall face of a washing cylinder to enter a drying air channel, the structure is complex and is not suitable for drawer type washing machines are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of washing, and in particular relates to a drying air duct and a drawer-type washing device. Background Art

[0002] In order to meet the needs of users for washing shoes, shoe washing machines are developed; a brush is often provided in the washing drum, and the brush is controlled to rotate so as to contact the surface of the shoes, thereby achieving the purpose of washing the shoes; a drying duct is provided at the mouth of the washing drum, and the drying duct and the washing drum are connected to form a circulation loop, and the drying air flow flows in the circulation loop, thereby achieving the purpose of drying the shoes; but since the height of the shoe washing machine is generally low, water may splash under the action of centrifugal force during the rotation of the washing drum, and then easily flow back into the drying duct along the inner wall of the washing drum, causing the drying fan to short-circuit and be damaged; it has been suggested that a balance ring be provided at the mouth of the washing drum, and a plurality of water retaining plates be provided at the lower end of the balance ring to prevent the water flow from climbing; but its structure is complicated, and the height requirement for the washing drum is high, so it is not suitable for drawer-type washing machines and has a greater impact on the capacity of the drawer-type washing machines. Summary of the invention

[0003] In view of this, the present invention provides a drying duct and a drawer-type washing device to solve the problems in the prior art of using a balance ring to block water from flowing back along the inner wall of the washing drum into the drying duct, such as complex structure, high requirements on the height of the washing drum, and unsuitability for drawer-type washing devices.

[0004] The present invention provides a drying air duct for a drawer-type washing device, the drawer-type washing device comprising a washing drum; the drying air duct is used to be arranged around the drum mouth of the washing drum, and the drying air duct is formed with an air duct inlet and an air duct outlet, and the air duct inlet and the air duct outlet are both used to connect the drying air duct and the washing drum;

[0005] The drying air duct is provided with a water retaining structure near the air duct outlet, and the water retaining structure is used to prevent the washing water in the washing drum from entering the drying air duct through the air duct outlet when the drawer-type washing device runs a washing program.

[0006] Further optionally, the drying air duct includes a main air outlet section and multiple air outlet branch sections, the main air outlet section is an arc-shaped structure, and the multiple air outlet branch sections are arranged at circumferential intervals along the main air outlet section; one end of each of the air outlet branch sections is connected to the main air outlet section, and the other end of each of the air outlet branch sections extends toward the axis of the main air outlet section; an air duct outlet is formed at the other end of each of the air outlet branch sections, and the air duct outlet is used to face the lower end of the axis of the washing drum; the air outlet branch sections are formed with the water retaining structure.

[0007] Further optionally, the water retaining structure includes a water retaining upper wall, and the water retaining upper wall includes a plurality of water retaining upper wall sections sequentially connected from outside to inside along the radial direction of the air outlet main section; the water retaining upper wall section located on the radial inner side of the air outlet main section is a first water retaining upper wall section, the first water retaining upper wall section is inclined from top to bottom, and the upper end of the first water retaining upper wall section is arranged away from the axis of the air outlet main section, and the lower end of the first water retaining upper wall section is arranged close to the axis of the air outlet main section;

[0008] The inclination angle of the first water retaining upper wall section relative to the vertical plane is α, and α satisfies: 0<α<45°.

[0009] Further optionally, the water-retaining upper wall section located radially outside the main air outlet section is a second water-retaining upper wall section, the second water-retaining upper wall section extends in a horizontal direction, and the second water-retaining upper wall section and the first water-retaining upper wall section are connected by a third water-retaining upper wall section; along the radial direction of the main air outlet section, the third water-retaining upper wall section has an arc-shaped structure.

[0010] Further optionally, the water retaining structure also includes a water retaining lower wall, the water retaining lower wall includes a plurality of water retaining lower wall sections sequentially connected from outside to inside along the radial direction of the air outlet main section; the water retaining lower wall section located on the radial inner side of the air outlet main section is a first water retaining lower wall section, the first water retaining lower wall section is inclined from top to bottom, and the upper end of the first water retaining lower wall section is arranged away from the axis of the air outlet main section, and the lower end of the first water retaining lower wall section is arranged close to the axis of the air outlet main section;

[0011] The inclination angle of the first water retaining lower wall section relative to the horizontal plane is β, and β satisfies: β≤90°; preferably, 10°≤β≤30°.

[0012] Further optionally, the water retaining lower wall section located radially outside the air outlet main section is a second water retaining lower wall section, the second water retaining lower wall section is inclined from top to bottom, and the upper end of the second water retaining lower wall section is arranged away from the axis of the air outlet main section, and the lower end of the second water retaining lower wall section is arranged close to the axis of the air outlet main section;

[0013] The inclination angle of the second water retaining lower wall section relative to the horizontal plane is γ, and γ satisfies: γ≤90° and γ≥β; preferably, 10°≤γ≤30°.

[0014] Further optionally, the first water retaining lower wall section and the second water retaining lower wall section are connected via a third water retaining lower wall section, the third water retaining lower wall section is arranged obliquely from top to bottom, and the upper end of the third water retaining lower wall section is arranged away from the axis of the air outlet main section, and the lower end of the third water retaining lower wall section is arranged close to the axis of the air outlet main section;

[0015] The inclination angle of the third water retaining lower wall section relative to the horizontal plane is θ, and θ satisfies: θ≤60°, and θ>β, θ>γ.

[0016] Further optionally, the water retaining structure further comprises a water retaining lower wall, and the water retaining lower wall comprises a water retaining lower wall outer section and a water retaining lower wall inner section sequentially arranged from outside to inside along the radial direction of the air outlet main section;

[0017] The upper end of the inner section of the lower water retaining wall and the lower end of the outer section of the lower water retaining wall are rotatably connected via a rotating shaft, and the inner section of the lower water retaining wall can rotate relative to the outer section of the lower water retaining wall, and the inner section of the lower water retaining wall includes a first state and a second state; when the inner section of the lower water retaining wall is in the first state, the lower end of the inner section of the lower water retaining wall and the lower end of the first upper water retaining wall section are abutted together, and the air duct outlet is closed; when the inner section of the lower water retaining wall is in the second state, the lower end of the inner section of the lower water retaining wall and the lower end of the first upper water retaining wall section are separated, the air duct outlet is opened, and the inclination angle of the inner section of the lower water retaining wall relative to the horizontal plane is adjustable;

[0018] When the drawer-type washing device runs a washing program, under the action of washing water, the inner section of the lower water retaining wall is in the first state, and the washing water in the washing tub cannot enter the drying air duct through the air duct outlet;

[0019] When the drawer-type washing device runs a drying program, under the action of the drying airflow, the inner section of the lower water retaining wall is in the second state, and the drying airflow in the drying air duct can enter the washing drum through the air duct outlet.

[0020] Further optionally, the water retaining structure further comprises a water retaining lower wall, and the water retaining lower wall comprises a water retaining lower wall outer section and a water retaining lower wall inner section sequentially arranged from outside to inside along the radial direction of the air outlet main section;

[0021] The upper end of the inner section of the lower water retaining wall and the lower end of the outer section of the lower water retaining wall are rotatably connected via a rotating shaft, the inner section of the lower water retaining wall can rotate relative to the outer section of the lower water retaining wall, and the inner section of the lower water retaining wall includes a first state and a second state; an elastic member is provided between the inner section of the lower water retaining wall and the outer section of the lower water retaining wall;

[0022] Under the action of the elastic member, the inner section of the lower water retaining wall is in the first state; when the drawer-type washing device runs a washing program, the washing water in the washing tub cannot enter the drying air duct through the air duct outlet;

[0023] When the drawer-type washing device runs a drying program, under the action of the drying airflow, the inner section of the lower water retaining wall is in the second state, and the drying airflow in the drying air duct can enter the washing drum through the air duct outlet.

[0024] Further optionally, the main air outlet sections are provided with two; the drying air duct further comprises an air inlet section, the air inlet section is connected between the two main air outlet sections; the air inlet section is formed with an air duct inlet, the air duct inlet is used to face the lower end of the axis of the washing drum;

[0025] A heating element is arranged in the air inlet section, and the heating element is used to heat the drying airflow flowing through; a drying fan is arranged on the air inlet side of the air duct inlet, and the drying fan is used to provide power to the drying airflow.

[0026] The present invention also provides a drawer-type washing device, comprising a washing drum and a drying duct as described above; a drum cover is provided at the drum opening of the washing drum, and the drum cover can open or close the drum opening of the washing drum; the drying duct is hidden between the drum cover and the drum opening of the washing drum.

[0027] Further optionally, the drawer-type washing device further comprises a box body and a drawer, the side wall of the box body is formed with a box body opening, the interior of the box body is formed with a box body cavity communicated with the box body opening; the drawer is push-pullably arranged in the box body cavity through the box body opening, and the drawer is formed with a drawer cavity;

[0028] The washing tub is rotatably disposed in the drawer cavity.

[0029] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0030] A water retaining structure is provided in the drying duct near the duct outlet; when the drawer-type washing device runs the washing program, the washing water in the washing drum cannot enter the drying duct through the duct outlet; when the drawer-type washing device runs the drying program, the drying air flow in the drying duct can enter the washing drum through the duct outlet; the structure is simple, the height requirement for the washing drum is low, it is suitable for drawer-type washing devices, and can prevent water from flowing back into the drying duct, and can avoid the problem of water flowing into the drying duct causing a short circuit of the drying fan; it solves the problems of the prior art using a balance ring to block water from flowing back into the drying duct along the inner wall of the washing drum, such as the complex structure, high requirement for the height of the washing drum, and unsuitability for drawer-type washing devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0032] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0033] Figure 1 This is a schematic diagram of the axial structure of a drying air duct embodiment provided by the present invention;

[0034] Figure 2a A schematic diagram of a top view of the drying air duct embodiment provided by the present invention;

[0035] Figure 2b for Figure 2a Sectional view at AA;

[0036] Figure 2c for Figure 2b Enlarged view of point B in the middle;

[0037] Figure 3 A schematic diagram of the assembly structure of a drying air duct, a washing drum and a drawer embodiment provided by the present invention;

[0038] Figure 4a This is a schematic diagram of the axial structure of an embodiment of a drawer-type washing machine (without a drum cover and a brush) provided by the present invention;

[0039] Figure 4b This is a schematic diagram of the axial structure of an embodiment of a drawer-type washing machine (with a drum cover and a brush) provided by the present invention;

[0040] Figure 4c A schematic cross-sectional view of an embodiment of a drawer-type washing device (with a drum cover and a brush) provided by the present invention;

[0041] Figure 5 A partial cross-sectional structural schematic diagram of an embodiment of a drawer-type washing machine provided by the present invention;

[0042] Figure 6 A schematic diagram of the structure of a bottom wall brush and a side wall brush provided by the present invention;

[0043] Figure 7a A schematic cross-sectional view of an embodiment of the drying air duct provided by the present invention when the inner section of the lower water retaining wall is in a first state;

[0044] Figure 7b A schematic cross-sectional structure diagram of an embodiment of the drying air duct provided by the present invention when the inner section of the lower water retaining wall is in the second state;

[0045] In the figure:

[0046] 11-box body; 111-box body cavity; 12-drawer; 121-drawer cavity;

[0047] 2-washing drum; 21-drum bottom wall; 22-drum side wall; 23-bottom wall through hole; 24-side wall through hole; 25-drum cover;

[0048] 31- bottom wall brush; 32- side wall brush; 33- brush holder; 34- brush cluster;

[0049] 4-drying air duct; 41-air inlet section; 42-main air outlet section; 43-air outlet branch section; 431-air duct outlet; 44-water retaining structure; 441-water retaining upper wall; 4411-first water retaining upper wall section; 4412-second water retaining upper wall section; 4413-third water retaining upper wall section; 442-water retaining lower wall; 4421-first water retaining lower wall section; 4422-second water retaining lower wall section; 4423-third water retaining lower wall section; 4424-outer section of the water retaining lower wall; 4425-inner section of the water retaining lower wall. DETAILED DESCRIPTION

[0050] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0052] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. 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 article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0054] In the existing shoe washing machine with drying function, since the height of the shoe washing machine is generally low, during the rotation of the washing drum, water flow may splash under the action of centrifugal force, and then easily flow back into the drying air duct along the inner wall of the washing drum, causing the drying fan to short-circuit and damage; someone proposed to set a balance ring at the drum mouth of the washing drum, and set a plurality of water retaining plates at the lower end of the balance ring to prevent the water flow from climbing; but its structure is complicated, and the height requirement of the washing drum is high, so it is not suitable for drawer-type washing machines, and has a great impact on the capacity of drawer-type washing machines;

[0055] The present invention creatively provides a drying air duct for a drawer-type washing device. The drying air duct is used to be arranged around the drum mouth of a washing drum and is formed with an air duct inlet and an air duct outlet. The drying air duct is provided with a water retaining structure near the air duct outlet. When the drawer-type washing device runs a washing program, the washing water in the washing drum cannot enter the drying air duct through the air duct outlet. When the drawer-type washing device runs a drying program, the drying air flow in the drying air duct can enter the washing drum through the air duct outlet. The structure is simple and the height requirement for the washing drum is low. The drying air duct is suitable for the drawer-type washing device and can prevent water from flowing back into the drying air duct.

[0056] Example 1

[0057] like Figure 1 to Figure 2c As shown, the present embodiment proposes a drying duct 4, which is used for a drawer-type washing device, especially for a drawer-type washing device with a drying function, and is preferably used for a drawer-type shoe washing machine; the drawer-type washing device comprises a washing drum 2 and a drum cover 25, the drum cover 25 is arranged at the drum mouth of the washing drum 2, and the drum cover 25 can open or close the drum mouth of the washing drum 2; the drying duct 4 is used to be arranged around the drum mouth of the washing drum 2, and the drying duct 4 is hidden between the drum cover 25 and the drum mouth of the washing drum 2; the drying duct 4 is formed with an air duct inlet and an air duct outlet 431, and the air duct inlet and the air duct outlet 431 are both used to connect the drying duct 4 and the washing drum 2; specifically, the air duct inlet is used to face the drum bottom of the washing drum 2, and the air duct outlet 431 is used to face the lower end of the axis of the washing drum 2;

[0058] The drying duct 4 is provided with a water retaining structure 44 near the duct outlet 431. When the drawer-type washing device runs a washing program, the washing water in the washing drum 2 cannot enter the drying duct 4 through the duct outlet 431; when the drawer-type washing device runs a drying program, the drying airflow in the drying duct 4 can enter the washing drum 2 through the duct outlet 431, which does not affect the output of the drying airflow in the drying duct 4, thereby ensuring the drying efficiency; the structure is simple, and the height requirement for the washing drum 2 is low, which is suitable for drawer-type washing devices, and can prevent water from flowing back into the drying duct 4, and can avoid the problem of water flowing into the drying duct 4 causing a short circuit in the drying fan; the problem that the balance ring is used in the prior art to prevent water from flowing back into the drying duct 4 along the inner wall of the washing drum 2 is complex in structure, has a high height requirement for the washing drum 2, and is not suitable for drawer-type washing devices.

[0059] Example 2

[0060] On the basis of Example 1, this embodiment proposes that the drying air duct 4 includes an air outlet main section 42 and a plurality of air outlet branch sections 43, the air outlet main section 42 is an arc-shaped structure, and the plurality of air outlet branch sections 43 are arranged at intervals along the circumference of the air outlet main section 42; one end of each air outlet branch section 43 is connected to the air outlet main section 42, and the other end of each air outlet branch section 43 extends toward the axis of the air outlet main section 42; an air duct outlet 431 is formed at the other end of each air outlet branch section 43; the drying airflow in the air outlet main section 42 enters the plurality of air outlet branch sections 43, and then enters the washing drum 2 through the corresponding air duct outlets 431, so as to dry the shoes in the washing drum 2; preferably, the air outlet main section 42 and the washing drum 2 are coaxially arranged, and the air outlet branch sections 43 extend along the radial direction of the air outlet main section 42;

[0061] The air outlet branch section 43 is formed with a water retaining structure 44; the water retaining structure 44 satisfies: when the drawer-type washing device runs a washing program, the washing water in the washing drum 2 cannot enter the air outlet branch section 43 through the air duct outlet 431; when the drawer-type washing device runs a drying program, the drying airflow in the air outlet branch section 43 can enter the washing drum 2 through the air duct outlet 431.

[0062] Further, the water retaining structure 44 includes a water retaining upper wall 441, and the water retaining upper wall 441 includes a plurality of water retaining upper wall sections connected in sequence from outside to inside along the radial direction of the air outlet main section 42; the water retaining upper wall section located on the radial inner side of the air outlet main section 42 is a first water retaining upper wall section 4411, and the first water retaining upper wall section 4411 is inclined from top to bottom, and the upper end of the first water retaining upper wall section 4411 is arranged away from the axis of the air outlet main section 42, and the lower end of the first water retaining upper wall section 4411 is arranged close to the axis of the air outlet main section 42;

[0063] The first water retaining upper wall section 4411 has an inclination angle α relative to the vertical plane, and α satisfies: 0<α<45°; so that the first water retaining upper wall section 4411 has a water retaining effect;

[0064] The water-retaining upper wall section located radially outside the main air outlet section 42 is the second water-retaining upper wall section 4412. The second water-retaining upper wall section 4412 extends in the horizontal direction. The second water-retaining upper wall section 4412 and the first water-retaining upper wall section 4411 are connected by the third water-retaining upper wall section 4413. Along the radial direction of the main air outlet section 42, the third water-retaining upper wall section 4413 has an arc-shaped structure.

[0065] The present embodiment further proposes that the water retaining structure 44 further includes a water retaining lower wall 442, and the water retaining lower wall 442 includes a plurality of water retaining lower wall sections sequentially connected from outside to inside along the radial direction of the air outlet main section 42; the water retaining lower wall section located on the radial inner side of the air outlet main section 42 is a first water retaining lower wall section 4421, and the first water retaining lower wall section 4421 is inclined from top to bottom, and the upper end of the first water retaining lower wall section 4421 is arranged away from the axis of the air outlet main section 42, and the lower end of the first water retaining lower wall section 4421 is arranged close to the axis of the air outlet main section 42;

[0066] The first water retaining lower wall section 4421 has an inclination angle β relative to the horizontal plane, and β satisfies: β≤90°; so that the first water retaining lower wall section 4421 has a water retaining effect; that is, when washing water splashes onto the first water retaining lower wall section 4421, the washing water can flow back due to the inclined setting of the first water retaining lower wall section 4421, thereby achieving a waterproof effect;

[0067] Preferably, 10°≤β≤30°;

[0068] The water retaining lower wall section located radially outward of the air outlet main section 42 is the second water retaining lower wall section 4422, which is inclined from top to bottom, and the upper end of the second water retaining lower wall section 4422 is arranged away from the axis of the air outlet main section 42, and the lower end of the second water retaining lower wall section 4422 is arranged close to the axis of the air outlet main section 42;

[0069] The second water retaining lower wall section 4422 has an inclination angle γ relative to the horizontal plane, and γ satisfies: γ≤90° and γ≥β; so that the second water retaining lower wall section 4422 has a water retaining effect; that is, when washing water splashes onto the second water retaining lower wall section 4422, due to the inclined setting of the second water retaining lower wall section 4422, the washing water can flow back, thereby achieving a waterproof effect;

[0070] Preferably, 10°≤γ≤30°.

[0071] Furthermore, the first water retaining lower wall section 4421 and the second water retaining lower wall section 4422 are connected by a third water retaining lower wall section 4423, and the third water retaining lower wall section 4423 is inclined from top to bottom, and the upper end of the third water retaining lower wall section 4423 is arranged away from the axis of the air outlet main section 42, and the lower end of the third water retaining lower wall section 4423 is arranged close to the axis of the air outlet main section 42;

[0072] The inclination angle of the third water retaining lower wall section 4423 relative to the horizontal plane is θ, and θ satisfies: θ≤60°, and θ>β, θ>γ;

[0073] The multiple water-retaining lower wall sections play a role in retaining water without affecting the air outlet.

[0074] In addition, two main air outlet sections 42 are provided, and the two main air outlet sections 42 are spaced apart in the circumferential direction of the washing drum; the drying air duct 4 further includes an air inlet section 41, and the air inlet section 41 is connected between the two main air outlet sections 42; the air inlet section 41 is formed with an air duct inlet, and the air duct inlet is used to face the lower end of the axis of the washing drum 2; specifically, the structures of the two main air outlet sections 42 may be the same or different; when the structures of the two main air outlet sections 42 are the same, the arc lengths of the two main air outlet sections 42 may be different;

[0075] A heating element is provided in the air inlet section 41, and the heating element is used to heat the drying airflow flowing through; a drying fan is provided on the air inlet side of the air duct inlet, and the drying fan is used to provide power to the drying airflow;

[0076] The washing drum 2, the drying fan, the air inlet section 41, one main air outlet section 42 and the corresponding air outlet branch section 43 can form a circulation loop, and the washing drum 2, the drying fan, the air inlet section 41, another main air outlet section 42 and the corresponding air outlet branch section 43 can form another circulation loop;

[0077] Under the action of the drying fan, the drying airflow can flow in two circulation loops. When the drying airflow flows through the heating element, the heating element heats the drying airflow. When the drying airflow flows through the washing drum 2, the drying airflow exchanges heat with the shoes to dry the shoes; this allows the washed shoes to evaporate most of the moisture during the drying process, accelerates the drying process of the shoes, and reduces the waiting time for users.

[0078] Preferably, each main air outlet section 42 corresponds to two branch air outlet sections 43, and the drying airflow in the main air outlet section 42 can enter the two branch air outlet sections 43, and then disperse into the washing drum 2 through the corresponding air duct outlets 431, thereby increasing the contact area between the drying airflow and the shoes in the washing drum 2 and improving the drying efficiency; it should be noted that the number of branch air outlet sections 43 corresponding to each main air outlet section 42 can be set according to actual needs; the drying airflow is dispersed into the washing drum 2 through multiple branch air outlet sections 43 and the air duct outlet 431, so that the drying airflow is fully in contact with the shoes, thereby improving the drying effect;

[0079] To sum up, the water retaining upper wall 441 and the water retaining lower wall 442 form a water retaining structure 44, and the water retaining upper wall 441 includes a plurality of water retaining upper wall sections connected in sequence from the outside to the inside along the radial direction of the main air outlet section 42, and the water retaining lower wall 442 includes a plurality of water retaining lower wall sections connected in sequence from the outside to the inside along the radial direction of the main air outlet section 42; in this way, when the drawer-type washing device runs a washing program, the washing water in the washing drum 2 cannot enter the drying duct 4 through the duct outlet 431, and the waterproof effect is good; when the drawer-type washing device runs a drying program, the drying airflow in the drying duct 4 can smoothly enter the washing drum 2 through the duct outlet 431, thereby ensuring the flow rate of the drying airflow; the problem of poor waterproof effect of the drying duct 4 in the prior art is solved, and the problem of not being able to take into account both the waterproof efficiency and the drying airflow flow rate in the prior art is solved.

[0080] Example 3

[0081] like Figure 7a and Figure 7b As shown, different from the second embodiment, the present embodiment proposes that the water retaining structure 44 further includes a water retaining lower wall 442, and the water retaining lower wall 442 includes a water retaining lower wall outer section 4424 and a water retaining lower wall inner section 4425 which are sequentially arranged from the outside to the inside along the radial direction of the air outlet main section 42;

[0082] The upper end of the water retaining lower wall inner section 4425 and the lower end of the water retaining lower wall outer section 4424 are rotatably connected via a rotating shaft, and the water retaining lower wall inner section 4425 can rotate relative to the water retaining lower wall outer section 4424. The water retaining lower wall inner section 4425 includes a first state and a second state; when the water retaining lower wall inner section 4425 is in the first state, the lower end of the water retaining lower wall inner section 4425 and the lower end of the first water retaining upper wall section 4411 are abutted together, and the air duct outlet 431 is closed; when the water retaining lower wall inner section 4425 is in the second state, the lower end of the water retaining lower wall inner section 4425 and the lower end of the first water retaining upper wall section 4411 are separated, the air duct outlet 431 is opened, and the inclination angle of the water retaining lower wall inner section 4425 relative to the horizontal plane is adjustable;

[0083] When the drawer-type washing machine runs a washing program, the washing water moves from bottom to top along the inner wall surface of the washing tub 2. Under the action of the washing water, the inner section 4425 of the lower water retaining wall is in the first state, the air duct outlet 431 is closed, and the washing water in the washing tub 2 cannot enter the drying air duct 4 through the air duct outlet 431.

[0084] When the drawer-type washing device runs the drying program, the drying air flow flows from top to bottom in the air outlet branch section 43. Under the action of the drying air flow, the inner section 4425 of the water retaining lower wall is in the second state, the air duct outlet 431 is opened, and the drying air flow in the drying air duct 4 can enter the washing drum 2 through the air duct outlet 431.

[0085] Example 4

[0086] like Figure 7a and Figure 7b As shown, different from the second embodiment, the present embodiment proposes that the water retaining structure 44 further includes a water retaining lower wall 442, and the water retaining lower wall 442 includes a water retaining lower wall outer section 4424 and a water retaining lower wall inner section 4425 which are sequentially arranged from the outside to the inside along the radial direction of the air outlet main section 42;

[0087] The upper end of the water-retaining lower wall inner section 4425 and the lower end of the water-retaining lower wall outer section 4424 are rotatably connected through a rotating shaft, and the water-retaining lower wall inner section 4425 can rotate relative to the water-retaining lower wall outer section 4424, and the water-retaining lower wall inner section 4425 includes a first state and a second state; when the water-retaining lower wall inner section 4425 is in the first state, the lower end of the water-retaining lower wall inner section 4425 and the lower end of the first water-retaining upper wall section 4411 are abutted together, and the air duct outlet 431 is closed; when the water-retaining lower wall inner section 4425 is in the second state, the lower end of the water-retaining lower wall inner section 4425 and the lower end of the first water-retaining upper wall section 4411 are separated, the air duct outlet 431 is opened, and the inclination angle of the water-retaining lower wall inner section 4425 relative to the horizontal plane is adjustable; an elastic member is provided between the water-retaining lower wall inner section 4425 and the water-retaining lower wall outer section 4424; specifically, the elastic member is a torsion spring or a spring;

[0088] The elastic member is in a normal state. Under the action of the elastic member, the inner section 4425 of the water retaining lower wall is in a first state. When the drawer-type washing device runs a washing program, the washing water in the washing tub 2 cannot enter the drying air duct 4 through the air duct outlet 431.

[0089] When the drawer-type washing device runs the drying program, the drying airflow flows from top to bottom in the air outlet branch section 43. Under the action of the drying airflow, the inner section 4425 of the lower water retaining wall is in the second state, and the drying airflow in the drying air duct 4 can enter the washing drum 2 through the air duct outlet 431, and the elastic member is in an energy storage state.

[0090] Specifically, the outer section 4424 of the water retaining lower wall is inclined from top to bottom, and the upper end of the outer section 4424 of the water retaining lower wall is arranged away from the axis of the air outlet main section 42, and the lower end of the outer section 4424 of the water retaining lower wall is arranged close to the axis of the air outlet main section 42; the inclination angle of the outer section 4424 of the water retaining lower wall relative to the horizontal plane is δ, and δ satisfies: δ≤90°;

[0091] Example 5

[0092] Different from Example 2, this embodiment proposes that a one-way valve is provided in the air outlet branch section 43, and the one-way valve allows the drying air flow in the air outlet branch section 43 to enter the washing drum 2 through the air duct outlet 431, but does not allow the washing water in the washing drum 2 to enter the air outlet branch section 43 through the air duct outlet 431.

[0093] Example 6

[0094] like Figure 3 and Figure 6 As shown, this embodiment proposes a drawer-type washing device, comprising a washing drum 2 and a drying air duct 4 as described in any one of Embodiments 1 to 5; a drum cover 25 is provided at the drum opening of the washing drum 2, and the drum cover 25 can open or close the drum opening of the washing drum 2, and the drum cover 25 is rotatably provided on the top wall of the drawer 12 on one side close to the box cavity 111; the drying air duct 4 is hidden between the drum cover 25 and the drum opening of the washing drum 2;

[0095] The first water retaining upper wall section 4411 shall not exceed the cylinder cover 25, and the cylinder cover 25 covers the first water retaining upper wall section 4411. From the user's perspective, the drying duct 4 and the first water retaining upper wall section 4411 cannot be seen. The drying duct 4 is designed to be hidden, and the appearance is neat and beautiful.

[0096] Further, the drawer-type washing device further comprises a box body 11 and a drawer 12, the side wall of the box body 11 is formed with a box body opening, the inside of the box body 11 is formed with a box body cavity 111 communicating with the box body opening; the drawer 12 is push-pull disposed in the box body cavity 111 through the box body opening, and the drawer 12 is formed with a drawer cavity 121;

[0097] The washing tub 2 is rotatably disposed in the drawer cavity 121 .

[0098] Specifically, the drawer-type washing device further comprises a side wall brush 32 and a bottom wall brush 31, wherein the side wall brush 32 is arranged on the inner wall surface of the barrel side wall 22 of the washing barrel 2, and the bottom wall brush 31 is arranged on the inner wall surface of the barrel bottom wall 21 of the washing barrel 2; the side wall brush 32 and the bottom wall brush 31 both comprise a brush holder 33 and a plurality of brush clusters 34, wherein the brush holder 33 is arranged on the barrel side wall 22 and the barrel bottom wall 21; the plurality of brush clusters 34 are arranged on the brush holder 33 for washing; the brush holder 33 is formed with a plurality of brush holes arranged at intervals; the plurality of brush clusters 34 are arranged in the plurality of brush holes in a one-to-one correspondence, and the brush clusters 34 are arranged in the brush holes by adhesion or clamping;

[0099] In the case of washing in a drawer-type washing device, the side wall brush 32 and the bottom wall brush 31 can rotate with the washing tub 2 to wash shoes;

[0100] In addition, a drawer opening is formed on the top wall of the drawer 12, and a drawer cavity 121 connected to the drawer opening is formed inside the drawer 12; the washing drum 2 is rotatably arranged in the drawer cavity 121 through the drawer opening, and a pulsator is arranged in the washing drum 2, and the pulsator is located on the drum bottom wall 21 of the washing drum 2; the drum bottom wall 21 of the washing drum 2 is formed with a plurality of bottom wall through holes 23 arranged at intervals, and each bottom wall through hole 23 connects the washing drum 2 and the drawer cavity 121; the drum side wall 22 of the washing drum 2 is formed with a plurality of side wall through holes 24 arranged at intervals, and each side wall through hole 24 connects the washing drum 2 and the drawer cavity 121;

[0101] A water-repelling rib is provided at the connection between the side wall 22 and the bottom wall 21 of the washing tub 2, and the water-repelling rib is located outside the washing chamber; a plurality of water-repelling ribs are provided, and the plurality of water-repelling ribs are arranged at intervals along the circumference of the washing tub 2 to improve the water-repelling efficiency and the washing ratio;

[0102] The bottom wall 21 of the washing tub 2 is provided with reinforcing ribs, which are located outside the washing cavity; there are multiple reinforcing ribs, which are arranged at intervals along the circumference of the washing tub 2; the reinforcing ribs prevent the bottom wall 21 of the washing tub 2 from being deformed.

[0103] The drawer-type washing machine has a washing program, a dehydration program and a drying program. The washing program includes a main wash program and a rinsing program. The operating procedures of the drawer-type washing machine are as follows:

[0104] First, the user pulls out the drawer 12 at the opening of the box, opens the drum cover 25, and places the shoes in the washing drum 2;

[0105] Second, close the cylinder cover 25 and push the drawer 12 into the box cavity 111;

[0106] Third, the main wash program is started, and water is introduced into the washing tub 2. After the water is introduced, the washing tub 2 rotates forward and reversely. After the main wash is completed, the water is drained.

[0107] Fourth, after the drainage is completed, start the rinsing process; after the rinsing process is completed, drain the water;

[0108] Fifth, the dehydration process is started, the washing drum 2 rotates in one direction, and drives the shoes to rotate together;

[0109] Sixth, after the dehydration process is completed, start the drying process.

[0110] To sum up, the drawer 12 can be pushed and pulled in the box cavity 111 through the box opening, and the washing drum 2 can be rotatably arranged in the drawer cavity 121; the drying duct 4 is provided with a water retaining structure 44 near the duct outlet 431, and when the drawer-type washing device runs the washing program, the washing water in the washing drum 2 cannot enter the drying duct 4 through the duct outlet 431; it is suitable for drawer-type washing equipment, which can prevent water from flowing back into the drying duct 4, and can avoid the problem of water flowing into the drying duct 4 causing a short circuit of the drying fan; when the drawer-type washing device runs the drying program, the drying airflow in the drying duct 4 can enter the washing drum 2 through the duct outlet 431; it does not affect the flow of the drying airflow, and ensures the drying efficiency; it solves the problems of the complex structure when the balance ring is used in the prior art to prevent the water from flowing back into the drying duct 4 along the inner wall of the washing drum 2, the high height requirement of the washing drum 2, and the unsuitability for the drawer-type washing device, and solves the problem of poor waterproof effect of the drying duct 4 in the prior art, and solves the problem that the waterproof efficiency and the drying airflow flow rate cannot be taken into account in the prior art.

[0111] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included in the spirit and scope of the appended claims.

Claims

1. A drying air duct (4) for a drawer-type washing machine, the drawer-type washing machine comprising a washing drum (2); characterized in that: The drying air duct (4) is used to be arranged around the drum mouth of the washing drum (2), and the drying air duct (4) is formed with an air duct inlet and an air duct outlet (431), and the air duct inlet and the air duct outlet (431) are both used to connect the drying air duct (4) and the washing drum (2); The drying air duct (4) is provided with a water retaining structure (44) near the air duct outlet (431), and the water retaining structure (44) is used to prevent the washing water in the washing drum (2) from entering the drying air duct (4) through the air duct outlet (431) when the drawer-type washing device runs a washing program.

2. The drying air duct (4) according to claim 1, characterized in that: The drying air duct (4) comprises an air outlet main section (42) and a plurality of air outlet branch sections (43); the air outlet main section (42) is in an arc-shaped structure, and the plurality of air outlet branch sections (43) are arranged at intervals along the circumference of the air outlet main section (42); one end of each of the air outlet branch sections (43) is connected to the air outlet main section (42), and the other end of each of the air outlet branch sections (43) extends toward the axis of the air outlet main section (42); the other end of each of the air outlet branch sections (43) is formed with an air duct outlet (431), and the air duct outlet (431) is used to face the lower end of the axis of the washing drum (2); the air outlet branch section (43) is formed with the water retaining structure (44).

3. The drying air duct (4) according to claim 2, characterized in that: The water retaining structure (44) comprises a water retaining upper wall (441), and the water retaining upper wall (441) comprises a plurality of water retaining upper wall sections which are sequentially connected from the outside to the inside along the radial direction of the air outlet main section (42); the water retaining upper wall section located radially inside the air outlet main section (42) is a first water retaining upper wall section (4411), and the first water retaining upper wall section (4411) is arranged obliquely from top to bottom, and the upper end of the first water retaining upper wall section (4411) is arranged away from the axis of the air outlet main section (42), and the lower end of the first water retaining upper wall section (4411) is arranged close to the axis of the air outlet main section (42); The inclination angle of the first water retaining upper wall section (4411) relative to the vertical plane is α, and α satisfies: 0<α<45°.

4. The drying air duct (4) according to claim 3, characterized in that: The water-retaining upper wall section located radially outside the main air outlet section (42) is a second water-retaining upper wall section (4412); the second water-retaining upper wall section (4412) extends in a horizontal direction; the second water-retaining upper wall section (4412) and the first water-retaining upper wall section (4411) are connected via a third water-retaining upper wall section (4413); along the radial direction of the main air outlet section (42), the third water-retaining upper wall section (4413) presents an arc-shaped structure.

5. The drying air duct (4) according to claim 2, characterized in that: The water retaining structure (44) further comprises a water retaining lower wall (442), the water retaining lower wall (442) comprising a plurality of water retaining lower wall sections which are sequentially connected from the outside to the inside along the radial direction of the air outlet main section (42); the water retaining lower wall section located radially inside the air outlet main section (42) is a first water retaining lower wall section (4421), the first water retaining lower wall section (4421) is arranged obliquely from top to bottom, and the upper end of the first water retaining lower wall section (4421) is arranged away from the axis of the air outlet main section (42), and the lower end of the first water retaining lower wall section (4421) is arranged close to the axis of the air outlet main section (42); The inclination angle of the first water retaining lower wall section (4421) relative to the horizontal plane is β, and β satisfies: β≤90°.

6. The drying air duct (4) according to claim 5, characterized in that: The water retaining lower wall section located radially outside the air outlet main section (42) is a second water retaining lower wall section (4422), the second water retaining lower wall section (4422) is arranged obliquely from top to bottom, and the upper end of the second water retaining lower wall section (4422) is arranged away from the axis of the air outlet main section (42), and the lower end of the second water retaining lower wall section (4422) is arranged close to the axis of the air outlet main section (42); The inclination angle of the second water retaining lower wall section (4422) relative to the horizontal plane is γ, and γ satisfies: γ≤90° and γ≥β.

7. The drying air duct (4) according to claim 6, characterized in that: The first water-blocking lower wall section (4421) and the second water-blocking lower wall section (4422) are connected via a third water-blocking lower wall section (4423), the third water-blocking lower wall section (4423) being arranged to be inclined from top to bottom, and the upper end of the third water-blocking lower wall section (4423) being arranged away from the axis of the air outlet main section (42), and the lower end of the third water-blocking lower wall section (4423) being arranged close to the axis of the air outlet main section (42); The inclination angle of the third water retaining lower wall section (4423) relative to the horizontal plane is θ, and θ satisfies: θ≤60°, and θ>β, θ>γ.

8. The drying air duct (4) according to claim 3, characterized in that: The water retaining structure (44) further comprises a water retaining lower wall (442), wherein the water retaining lower wall (442) comprises a water retaining lower wall outer section (4424) and a water retaining lower wall inner section (4425) which are sequentially arranged from outside to inside along the radial direction of the air outlet main section (42); The upper end of the water retaining lower wall inner section (4425) and the lower end of the water retaining lower wall outer section (4424) are rotatably connected via a rotating shaft, and the water retaining lower wall inner section (4425) can rotate relative to the water retaining lower wall outer section (4424). The water retaining lower wall inner section (4425) includes a first state and a second state. When the water retaining lower wall inner section (4425) is in the first state, the lower end of the water retaining lower wall inner section (4425) and the lower end of the first water retaining upper wall section (4411) are abutted together, and the air duct outlet (431) is closed. When the water retaining lower wall inner section (4425) is in the second state, the lower end of the water retaining lower wall inner section (4425) and the lower end of the first water retaining upper wall section (4411) are separated, the air duct outlet (431) is opened, and the inclination angle of the water retaining lower wall inner section (4425) relative to the horizontal plane is adjustable. When the drawer-type washing device runs a washing program, under the action of washing water, the inner section (4425) of the lower water retaining wall is in the first state, and the washing water in the washing tub (2) cannot enter the drying air duct (4) through the air duct outlet (431); When the drawer-type washing device runs a drying program, under the action of the drying airflow, the inner section (4425) of the lower water retaining wall is in the second state, and the drying airflow in the drying air duct (4) can enter the washing drum (2) through the air duct outlet (431).

9. The drying air duct (4) according to claim 3, characterized in that: The water retaining structure (44) further comprises a water retaining lower wall (442), wherein the water retaining lower wall (442) comprises a water retaining lower wall outer section (4424) and a water retaining lower wall inner section (4425) which are sequentially arranged from outside to inside along the radial direction of the air outlet main section (42); The upper end of the water retaining lower wall inner section (4425) and the lower end of the water retaining lower wall outer section (4424) are rotatably connected via a rotating shaft, the water retaining lower wall inner section (4425) can rotate relative to the water retaining lower wall outer section (4424), and the water retaining lower wall inner section (4425) includes a first state and a second state; an elastic member is provided between the water retaining lower wall inner section (4425) and the water retaining lower wall outer section (4424); Under the action of the elastic member, the inner section (4425) of the water retaining lower wall is in the first state; when the drawer-type washing device runs a washing program, the washing water in the washing tub (2) cannot enter the drying air duct (4) through the air duct outlet (431); When the drawer-type washing device runs a drying program, under the action of the drying airflow, the inner section (4425) of the lower water retaining wall is in the second state, and the drying airflow in the drying air duct (4) can enter the washing drum (2) through the air duct outlet (431).

10. The drying air duct (4) according to claim 2, characterized in that: The two main air outlet sections (42) are provided; the drying air duct (4) further comprises an air inlet section (41), the air inlet section (41) being connected between the two main air outlet sections (42); the air inlet section (41) is formed with an air duct inlet, the air duct inlet being used to face the lower end of the axis of the washing drum (2); A heating element is arranged in the air inlet section (41), and the heating element is used to heat the drying airflow flowing through; a drying fan is arranged on the air inlet side of the air duct inlet, and the drying fan is used to provide power to the drying airflow.

11. A drawer-type washing machine, characterized in that: The invention comprises a washing drum (2) and a drying air duct (4) as claimed in any one of claims 1 to 10; a drum cover (25) is provided at the drum opening of the washing drum (2), and the drum cover (25) can open or close the drum opening of the washing drum (2); the drying air duct (4) is hidden between the drum cover (25) and the drum opening of the washing drum (2).

12. The drawer-type washing machine according to claim 11, characterized in that: The drawer-type washing device further comprises a box (11) and a drawer (12); a box opening is formed on a side wall of the box (11); a box cavity (111) communicating with the box opening is formed inside the box (11); the drawer (12) is arranged in the box cavity (111) in a push-pull manner through the box opening, and the drawer (12) is formed with a drawer cavity (121); The washing tub (2) is rotatably arranged in the drawer cavity (121).

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