Laundry treating apparatus

Abstract

The present application relates to the field of clothes processing equipment, and particularly provides a clothes processing equipment, aiming at solving the problem that the clothes stain removal and the dissolving effect of the washing agent of the existing washing machine need to be obviously improved. For this purpose, the clothes processing equipment of the present application comprises a casing, an inner drum, an outer drum, a gas generating device and a gas conveying device, the inner drum is provided with an inner drum feeding opening, the outer drum is arranged outside the inner drum, the outer drum is provided with an outer drum opening corresponding to the inner drum feeding opening, the outer drum opening is provided with a bending structure which is arranged beyond the inner drum feeding opening, and the bending structure and the inner drum feeding opening are provided with an installation gap, the gas generating device is provided with a gas outlet, the gas conveying device comprises an air inlet end and an air outlet end, the air inlet end is communicated with the gas outlet, the air outlet end penetrates through the outer drum, is arranged in the installation gap along the bending structure, and finally extends to the water storage area of the inner drum. The above arrangement can obviously improve the clothes stain removal and the dissolving effect of the washing agent.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clothes treatment equipment, and particularly discloses a clothes treatment equipment. BACKGROUND

[0002] The existing washing machine usually adds detergent to remove stains on clothes. The detergent removes stains mainly through its chemical composition. Whether the detergent can be fully dissolved affects the washing effect of clothes. If the detergent cannot be fully dissolved, it will remain on the clothes, causing damage to the clothes.

[0003] In the prior art, in order to accelerate the dissolution of the detergent and the removal of stains on clothes, a gas generating device is usually introduced. The gas outlet of the gas generating device is arranged between the inner drum and the outer drum. For example, the gas generating device is directly arranged on the inner side wall of the outer drum, and the bubbles generated by the gas outlet of the gas generating device are directly emitted between the inner drum and the outer drum. Alternatively, the gas generating device is arranged outside the outer drum, and the bubbles are introduced into the space between the inner drum and the outer drum through a pipeline. Then, the bubbles enter the inner drum through the water permeable holes of the inner drum. However, the above arrangement has limited effect on the dissolution of the detergent and the removal of stains on clothes.

[0004] In order to solve the above problems, the existing improvement schemes are all directed to the improvement of the gas generating device or the related pipeline, so that the gas outlet generates enough bubbles or micro-bubbles. Although the removal of stains on clothes and the solubility of the detergent are slightly improved, the effect is still not satisfactory to users.

[0005] Therefore, there is a need in the art for a new clothes treatment equipment to solve the problem that the removal of stains on clothes and the solubility of the detergent of the existing washing machine need to be significantly improved. SUMMARY

[0006] The present application aims to solve the above technical problems, i.e., to solve the problem that the removal of stains on clothes and the solubility of the detergent of the existing washing machine need to be significantly improved.

[0007] The present application provides a kind of clothes processing equipment, the clothes processing equipment includes: cabinet;Inner tube, the inner tube is opened with inner tube drop opening;Outer tube, the outer tube is located in the outer side of the inner tube, and the outer tube is opened with outer tube mouth corresponding with the inner tube drop opening, the outer tube mouth is equipped with the bending structure beyond the inner tube drop opening, and the bending structure is left with installation gap between the inner tube drop opening;Gas generating device, the gas generating device is equipped with gas outlet;Gas conveying device, the gas conveying device includes intake end and outlet end, the intake end is communicated with the gas outlet, the outlet end passes through the outer tube, and is arranged in the installation gap along the bending structure, and finally extends to the water storage area of the inner tube.

[0008] In the preferred technical solutions of the above clothes processing equipment, the bending structure is bent from the inner tube drop opening to the inner wall of the inner tube.

[0009] In the preferred technical solutions of the above clothes processing equipment, the gas conveying device is a pipe body.

[0010] In the preferred technical solutions of the above clothes processing equipment, the part of the pipe body bent downward after passing through the installation gap is a hose.

[0011] In the preferred technical solutions of the above clothes processing equipment, the bending structure is bent from the outer tube mouth to the axial direction of the inner tube, the gas conveying device includes first conveying pipe and second conveying pipe, the first end of the first conveying pipe is the intake end, the second end of the first conveying pipe passes through the outer tube, and is arranged in the installation gap along the bending structure, and finally extends to the outside of the bending structure along the bending structure, the first end of the second conveying pipe is connected with the second end of the first conveying pipe through bearing, and the second end of the second conveying pipe is the outlet end.

[0012] In the preferred technical solutions of the above clothes processing equipment, the bending structure is arranged at the circumferential lower part of the outer tube mouth, or is arranged along the circumference of the outer tube mouth.

[0013] In the preferred technical solutions of the above clothes processing equipment, the bending structure is integrally formed with the outer tube mouth.

[0014] In the preferred technical solutions of the above clothes processing equipment, the bending structure is detachably connected with the outer tube mouth.

[0015] In the preferred technical solutions of the above clothes processing equipment, the gas generating device is arranged on the outer side of the outer tube, or on the inner wall of the cabinet.

[0016] In the preferred technical solutions of the above clothes processing equipment, the gas generator is a gas pump, a fan or a compressor.

[0017] It can be understood that the clothes treatment equipment of the present application comprises a cabinet, an inner drum, an outer drum, a gas generating device and a gas conveying device, the inner drum is provided with an inner drum feeding opening, the outer drum is arranged outside the inner drum and is provided with an outer drum opening corresponding to the inner drum feeding opening, the outer drum opening is provided with a bending structure which passes over the inner drum feeding opening, and a mounting gap is left between the bending structure and the inner drum feeding opening, the gas generating device is provided with a gas outlet, and the gas conveying device comprises a gas inlet end and a gas outlet end, the gas inlet end is communicated with the gas outlet, the gas outlet end passes through the outer drum and is arranged in the mounting gap along the bending structure and finally extends to the water storage area of the inner drum.

[0018] The present application extends the gas outlet end of the gas conveying device to the water storage area of the inner drum, i.e. directly introduces the high-energy gas generated by the gas generating device into the water storage area of the inner drum, forms high-energy bubbles in the washing / rinsing water, and then forms a large number of cavitation bubbles in the water, trillions of rigid cavitation bubbles burst, and then generates a strong impact force, efficiently peels off the dirt on the clothes, reduces the use amount and residue of the detergent, and obviously improves the dirt removal and dissolution effects of the detergent.

[0019] In addition, since the gas conveying device of the present application extends through the outer drum to the water storage area of the inner drum, the material of the outer drum is usually rigid, and if the clothes in the inner drum interfere with the gas conveying device, the gas conveying device is easily damaged. In order to avoid this situation, the present application provides support and protection for the gas conveying device through the bending structure on the outer drum opening and the arrangement of the gas conveying device along the bending structure in the mounting gap, so that the gas conveying device is not damaged. For example, when the clothes are fed from the outer drum opening or when the clothes rotate around the axis of the inner drum, due to the arrangement of the bending structure, the clothes will only contact the outer wall of the bending structure and will not contact the gas conveying device inside the bending structure. When the clothes axially press the gas conveying device, the bending structure will provide support for the gas conveying device, thereby avoiding the breakage of the gas conveying device. BRIEF DESCRIPTION OF DRAWINGS

[0020] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0021] Figure 1 is a structural schematic view of the clothes treatment equipment of the present application (I);

[0022] Figure 2 is a structural schematic view of the clothes treatment equipment of the present application (II);

[0023] Figure 3 is a structural schematic view of the clothes treatment equipment of the present application (III);

[0024] Figure 4 is a structural schematic view of the clothes treatment equipment of the present application (IV);

[0025] Figure 5 is a structural schematic view of the laundry treating apparatus of the present application (V).

[0026] List of reference signs:

[0027] 1 - cabinet; 2 - inner cylinder; 21 - inner cylinder drop port; 3 - outer cylinder; 31 - outer cylinder port; 4 - bending structure; 5 - gas generating device; 51 - gas outlet; 6 - gas conveying device; 61 - gas outlet end; 62 - pipe body; 63 - first conveying pipe; 64 - second conveying pipe; 7 - bearing. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described herein below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely used to explain the technical principles of the present application, and are not intended to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed in order to adapt to specific application occasions.

[0029] It should be noted that in the description of the present application, the terms of direction or positional relationship such as "inner", "outer", "front", "rear", "lower", "side" and the like are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description, and does not indicate or imply that the device must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, it should also be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection", "communication" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] As Figures 1 to 5As shown, in order to solve the problem that the stain removal effect of the existing washing machine and the dissolution effect of the detergent need to be improved, the laundry treatment equipment of the present application comprises a cabinet 1, an inner drum 2, an outer drum 3, a gas generating device 5 and a gas conveying device 6, the inner drum 2 is rotatably arranged inside the outer drum 3, the outer drum 3 is arranged inside the cabinet 1, the inner drum 2 is provided with an inner drum feeding opening 21, the outer drum 3 is provided with an outer drum opening 31 corresponding to the inner drum feeding opening 21, the outer drum opening 31 is provided with a bending structure 4 which is arranged beyond the inner drum feeding opening 21, and a mounting gap is left between the bending structure 4 and the inner drum feeding opening 21; the gas generating device 5 is provided with a gas outlet 51, the gas conveying device 6 comprises an air inlet end (not shown) and an air outlet end 61, the air inlet end is in communication with the gas outlet 51, the air outlet end 61 penetrates through the outer drum 3 and is arranged in the mounting gap along the bending structure 4, and finally extends to the water storage area of the inner drum 2, that is, the gas flow path of the gas generating device 5 is from the gas outlet 51 of the gas generating device 5, enters the gas conveying device 6 through the air inlet end of the gas conveying device 6, and then is discharged into the water storage area of the inner drum 2 through the air outlet end 61 of the gas conveying device 6, the water storage area of the inner drum 2 refers to the area of the washing water in the inner drum 2.

[0032] The specific structure of the gas generating device 5 includes various forms, for example, it can be a gas pump, a fan or a compressor, etc., and the setting position of the gas generating device 5 includes various forms, for example, it can be arranged on the outside of the outer drum 3, preferably, it is arranged at the front end of the outside of the outer drum 3 (such as Figure 1 、 2 and 5), so that the length of the related pipeline can be reduced and the production cost can be saved; the gas generating device 5 can also be arranged on the inner wall of the cabinet 1 (such as Figure 3 and Figure 4 ), for example, it is arranged at the left side wall or the right side wall, the top wall or the bottom wall, etc. (seen from the door body direction of the drum washing machine) of the cabinet 1 of the drum washing machine. The gas introduction mode of the gas generating device 5 includes various forms, for example, when the gas generating device 5 is arranged on the outside of the outer drum 3, the gas inlet of the gas generating device 5 can be connected with the air hole arranged on the cabinet 1 of the laundry treatment equipment through a connecting pipe; when the gas generating device 5 is arranged on the inner wall of the cabinet 1, the gas inlet of the gas generating device 5 can be directly connected with the air hole arranged on the cabinet 1, etc. In addition, the specific form of the laundry treatment equipment of the present application includes various forms, for example, it can be a drum washing machine, a pulsator washing machine or a shoe washing machine, etc.

[0033] Since the bubbles generated by the gas outlet 51 of the gas generating device 5 of the prior art are directly emitted between the inner drum 2 and the outer drum 3, the dissolution effect of the detergent and the stain removal effect on the laundry are limited, and the improvement scheme is usually to increase the gas amount of the gas generating device 5, or to improve the gas generating device 5 to generate micro-bubbles, etc., but the final use effect has not been significantly improved.

[0034] The applicant found that the probability of the bubbles entering into the inner cylinder 2 through the water-permeable holes on the inner cylinder 2 from the outer cylinder 3 is very small, and experiments have proved that even if not larger bubbles, but very small micro-bubbles, it is also difficult to effectively enter into the inner cylinder 2. That is, the present application found that the main reason for the poor effect of the dissolution of the detergent and the removal of the stains on the clothes is not the amount of the generated bubbles and the size of the generated bubbles, but the water-permeable holes on the inner cylinder 2 make the bubbles unable to effectively enter into the inner cylinder 2.

[0035] Based on the above problem not found by the person skilled in the art, the present application extends the gas outlet end 61 of the gas conveying device 6 to the water storage area of the inner cylinder 2, that is, directly introduces the high-energy gas generated by the gas generating device 5 into the water storage area of the inner cylinder 2, forms high-energy bubbles in the washing / rinsing water, and then forms a large number of cavitation bubbles in the water, hundreds of billions of rigid cavitation bubbles burst, and then generates a strong impact force, efficiently peels off the dirt on the clothes, reduces the amount of detergent used and the residue, and significantly improves the stain removal and dissolution effect of the detergent.

[0036] In addition, since the gas conveying device 6 of the present application extends through the outer cylinder 3 to the water storage area of the inner cylinder 2, the material of the outer cylinder 3 is usually a rigid material, and if the clothes in the inner cylinder 2 interfere with the gas conveying device 6, the gas conveying device 6 is easy to be damaged. In order to avoid this situation, the present application provides support and protection for the gas conveying device 6 by the bending structure 4 on the outer cylinder opening 31 and the setting mode of the gas conveying device 6 along the bending structure 4 in the installation gap, so that the gas conveying device 6 is not damaged. For example, when the clothes are put into the outer cylinder opening 31, or when the clothes rotate around the axis of the inner cylinder 2, due to the setting of the bending structure 4, the clothes will only contact the outer wall of the bending structure 4, and will not contact the gas conveying device 6 inside the bending structure 4. When the clothes press the gas conveying device 6 in the axial direction, the bending structure 4 will provide support for the gas conveying device 6, thereby avoiding the breakage of the gas conveying device 6.

[0037] Among them, the related setting mode of the gas conveying device 6 through the outer cylinder 3 includes various modes, for example, in order to ensure the sealing of the outer cylinder 3, at least part of the gas conveying device 6 is a rubber hose, and the part of the rubber hose is in interference fit with the installation hole through the outer cylinder 3; or, a sealing ring is provided between the gas conveying device 6 and the installation hole through the outer cylinder 3, so as to realize the sealing connection.

[0038] As a preferred embodiment, the bending structure 4 is bent from the inner cylinder putting opening 21 to the inner wall of the inner cylinder 2.

[0039] Since the gas conveying device 6 is arranged along the bending structure 4, the bending structure 4 is bent from the inner wall of the inner drum 2 at the inner drum 2 discharge port 21, so that the gas outlet end 61 of the gas conveying device 6 can finally extend to the front end of the inner drum 2. For the drum washing machine, most of the clothes are gathered in the middle and rear part of the inner drum 2, and only a small amount of clothes is in the front part; for the pulsator washing machine, since the axis of the drum of the pulsator washing machine is perpendicular to the ground, and the washing water usually fully soaks the clothes, the upper washing water area usually does not interfere with the clothes; therefore, for both the drum washing machine and the pulsator washing machine, the above arrangement can reduce the interference between the gas conveying device 6 and the clothes.

[0040] In addition, since the bending structure 4 is bent from the inner wall of the inner drum 2 at the inner drum discharge port 21, an effective protection area of the gas conveying device 6 can be formed on the inner side of the bending structure 4, so that the gas conveying device 6 in this area can be prevented from contacting the clothes, thereby further protecting the gas conveying device 6 from being damaged and improving its service life.

[0041] Further, the gas outlet end 61 of the gas conveying device 6 can extend to the vicinity of the inner wall of the inner drum 2, so that the effective generation of bubbles can be ensured, and the gap between the gas outlet end 61 and the inner wall of the inner drum 2 is small, thereby preventing the clothes from being stuck in the large gap.

[0042] The specific structure of the gas conveying device 6 of the present application includes various kinds, and the present application will be introduced below by taking several possible embodiments as examples.

[0043] Referring to Figures 1 to 4 , as the first possible embodiment of the specific structure of the gas conveying device 6, the gas conveying device 6 is a pipe body 62.

[0044] That is, the high-energy gas generated by the gas generating device 5 is directly conveyed to the water storage area of the inner drum 2 through the pipe body 62. Since the pipe body 62 has a small volume, it occupies less space in the inner drum 2, and in addition, this structure is simple and has a low production cost.

[0045] Further, the downwardly bent part of the pipe body 62 is a hose. For example, it is an elastic silica gel pipe or a corrugated hose, etc. Since the downwardly bent part is a hose, when the hose collides with the clothes in the inner drum 2, the hose can deform itself to avoid damage to the hose or the clothes. In addition, the protection area formed on the inner side of the bending structure 4 can prevent the clothes from directly contacting the pipe body 62 in this area, thereby protecting the pipe body 62 outside the hose from being damaged.

[0046] The pipe body 62 can be integrally formed, or can be split, for example, the pipe body 62 includes a connecting pipe and a lower insertion pipe. The first end of the connecting pipe is an air inlet end, which is connected to the gas outlet 51 of the gas generating device 5. The second end of the connecting pipe passes through the outer cylinder 3 and is arranged in the installation gap along the bending structure 4, and is attached to the inner wall of the bending structure 4 and connected to the first end of the lower insertion pipe. The second end of the lower insertion pipe is an air outlet end 61, which extends to the water storage area of the inner cylinder 2.

[0047] The connecting pipe and the lower insertion pipe can be detachably connected, for example, the first end of the lower insertion pipe is directly inserted into (interference fit, clamping, etc.) the second end of the connecting pipe, which facilitates maintenance and replacement of the lower insertion pipe, or facilitates design of the connecting pipe and the lower insertion pipe into different structural forms according to the use conditions, such as designing the lower insertion pipe as a flexible pipe and the connecting pipe as a rigid pipe.

[0048] Referring to Figure 5 As a second possible embodiment of the specific structure of the gas conveying device 6, the bending structure 4 is axially bent from the outer cylinder opening 31 to the inner cylinder 2. The gas conveying device 6 includes a first conveying pipe 63 and a second conveying pipe 64. The first end of the first conveying pipe 63 is an air inlet end. The second end of the first conveying pipe 63 passes through the outer cylinder 3 and is arranged in the installation gap along the bending structure 4, and finally extends along the bending structure 4 to outside the bending structure 4. The first end of the second conveying pipe 64 is connected to the second end of the first conveying pipe 63 through a bearing 7. The second end of the second conveying pipe 64 is an air outlet end 61. The first end of the second conveying pipe 64 and the second end of the first conveying pipe 63 are connected through the bearing 7 in multiple specific arrangements, for example, the outer ring of the bearing 7 is pressed into the first end of the second conveying pipe 64, the second end of the first conveying pipe 63 is arranged in the inner ring of the bearing 7, or the outer ring of the bearing 7 is pressed into the second end of the first conveying pipe 63, and the first end of the second conveying pipe 64 is arranged in the inner ring of the bearing 7.

[0049] It can be understood that since the bending structure 4 is axially bent from the outer cylinder opening 31 to the inner cylinder 2, and the first conveying pipe 63 extends along the bending structure 4 to outside the bending structure 4, the first conveying pipe 63 also extends along the axial direction of the inner cylinder 2. That is, the second end of the first conveying pipe 63 and the first end of the second conveying pipe 64 are connected through the bearing 7 in the axial direction of the inner cylinder 2 outside the bending structure 4. Therefore, the second conveying pipe 64 can rotate around the axial direction of the inner cylinder 2, and the bending structure 4 does not hinder the rotation of the second conveying pipe 64.

[0050] The advantage of the above arrangement is that, since the second end of the second conveying pipe 64 extends into the water storage area of the inner drum 2, that is, the second conveying pipe 64 is the part that mainly interferes with the laundry, and since the second conveying pipe 64 and the laundry rotate around the axis of the inner drum 2, the rotation direction of the laundry is consistent with the rotation direction of the second conveying pipe 64, and when the second conveying pipe 64 interferes with the laundry, the second conveying pipe 64 will rotate around the axis of the inner drum 2 together with the laundry, thereby effectively protecting the laundry and the second conveying pipe 64 from being damaged.

[0051] In addition, due to the action of gravity, the second conveying pipe 64 eventually faces the bottom side of the inner drum 2, which does not affect the conveying of high-energy gas by the second conveying pipe 64. In addition, the bending structure 4 can provide support and protection for the first conveying pipe 63, offset the force transmitted by the laundry or avoid direct contact between the laundry and the first conveying pipe 63, effectively protecting the first conveying pipe 63 from being damaged.

[0052] The specific arrangement of the bending structure 4 on the outer drum opening 31 includes various forms, which will be introduced below with the following possible embodiments as examples.

[0053] As a possible embodiment, the bending structure 4 is integrally formed with the outer drum opening 31. In this case, preferably, the bending structure 4 is arranged at the circumferential lower part of the outer drum opening 31 (see Figures 2 to 4 , so as to facilitate the installation between the inner drum 2 and the outer drum 3, for example, one side of the inner drum insertion opening 21 is first installed inside the bending structure 4 of the outer drum 3, and then the other side is coaxially installed with the outer drum 3, thereby completing the installation between the inner drum 2 and the outer drum 3.

[0054] Of course, secondarily, in this case, the bending structure 4 can also be arranged along the circumference of the outer drum opening 31 (such as Figure 1 and Figure 5 ).

[0055] As a possible embodiment, the bending structure 4 is detachably connected with the outer drum opening 31. The specific way of detachable connection between the bending structure 4 and the outer drum opening 31 includes various forms, for example, through screw connection or clamping, etc.

[0056] This arrangement can directly install the bending structure 4 on the outer drum opening 31 after the installation of the inner drum 2 and the outer drum 3, which does not affect the assembly between the inner drum 2 and the outer drum 3. In this case, the bending structure 4 can be arranged at the circumferential lower part of the outer drum opening 31, or arranged along the circumference of the outer drum opening 31.

[0057] When the bending structure 4 is arranged along the circumference of the outer cylinder opening 31, since the bending structure 4 is arranged beyond the inner cylinder drop opening 21, this arrangement can wrap the inner cylinder drop opening 21 with the bending structure 4, thereby greatly reducing the gap between the inner cylinder 2 and the outer cylinder 3, avoiding the entry of foreign matters, and having aesthetic appearance.

[0058] It should be noted that the above embodiments are only used to illustrate the principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can adjust the above structure without deviating from the principles of the present application, so that the present application can be applied to more specific application scenarios.

[0059] For example, as an alternative embodiment of the present application, although the present application is introduced by arranging the bending structure 4 to bend towards the inner wall of the inner cylinder 2 from the inner cylinder drop opening 21, this is not intended to limit the protection scope of the present application. As long as the gas delivery pipeline can be protected, the arrangement can be adjusted, such as arranging the bending structure 4 to bend towards the axis of the inner cylinder 2 from the outer cylinder opening 31, and the like, which do not deviate from the principles of the present application, and thus are within the protection scope of the present application.

[0060] For example, as an alternative embodiment of the present application, although the present application is introduced by arranging the second end of the first delivery pipe 63 to pass through the outer cylinder 3, along the bending structure 4 to the mounting gap, and finally extending along the bending structure 4 to outside the bending structure 4, this is not intended to limit the protection scope of the present application. As long as the rotation of the second delivery pipe 64 can be achieved, the arrangement can be adjusted, such as extending the second end of the first delivery pipe 63 to inside the bending structure 4, in which case, the part of the second delivery pipe 64 outside the bending structure 4 is bent towards the inner wall of the inner cylinder 2, and the like, which do not deviate from the principles of the present application, and thus are within the protection scope of the present application.

[0061] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without deviating from the principles of the present application, and the technical solutions after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A laundry treating apparatus, characterized by, The laundry treatment apparatus comprises: a cabinet; an inner drum having an inner drum drop opening formed therein; an outer drum provided outside the inner drum and having an outer drum opening formed therein corresponding to the inner drum drop opening, the outer drum opening having a bending structure that passes over the inner drum drop opening, and an installation gap being formed between the bending structure and the inner drum drop opening; a gas generating device having a gas outlet formed therein; a gas delivery device having a gas inlet and a gas outlet, the gas inlet being connected to the gas outlet, the gas outlet passing through the outer drum and being disposed in the installation gap along the bending structure, and finally extending to a water storage area of the inner drum.

2. The laundry treatment apparatus according to claim 1, wherein the bending structure is bent from the inner drum drop opening to an inner wall of the inner drum.

3. The laundry treatment apparatus according to claim 2, wherein the gas delivery device is a pipe.

4. The laundry treatment apparatus according to claim 3, wherein a portion of the pipe that is bent downward after passing through the installation gap is a hose.

5. The laundry treatment apparatus according to claim 1, wherein the bending structure is bent from the outer drum opening to an axial direction of the inner drum, the gas delivery device comprises a first delivery pipe and a second delivery pipe, a first end of the first delivery pipe is the gas inlet, a second end of the first delivery pipe passes through the outer drum and is disposed in the installation gap along the bending structure, and finally extends to outside the bending structure along the bending structure, a first end of the second delivery pipe is connected to the second end of the first delivery pipe through a bearing, and a second end of the second delivery pipe is the gas outlet.

6. The laundry treatment apparatus according to claim 1, wherein the bending structure is disposed at a circumferential lower portion of the outer drum opening, or is disposed along a circumferential direction of the outer drum opening.

7. The laundry treatment apparatus according to claim 1, wherein the bending structure is integrally formed with the outer drum opening.

8. The laundry treatment apparatus according to claim 1, wherein the bending structure is detachably connected to the outer drum opening.

9. The laundry treatment apparatus according to claim 1, wherein the gas generating device is provided outside the outer drum, or on an inner wall of the cabinet.

10. The laundry treatment apparatus according to claim 1, wherein the gas generator is a gas pump, a fan, or a compressor.

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